gcc/ChangeLog

   1 2018-06-05  Kelvin Nilsen  <kelvin@gcc.gnu.org>
   2
   3         * doc/extend.texi (PowerPC AltiVec Built-in Functions): Remove
   4         volatile qualifier from vec_lvsl and vec_lvsr argument prototypes.
   5
   6 2018-06-05  Steve Ellcey  <sellcey@cavium.com>
   7
   8         PR target/79924
   9         * config/aarch64/aarch64-protos.h (aarch64_err_no_fpadvsimd): Remove
  10         second argument.
  11         * config/aarch64/aarch64-protos..c (aarch64_err_no_fpadvsimd):
  12         Remove second argument, change how error is called.
  13         (aarch64_layout_arg): Remove second argument from
  14         aarch64_err_no_fpadvsimd call.
  15         (aarch64_init_cumulative_args): Ditto.
  16         (aarch64_gimplify_va_arg_expr): Ditto.
  17         * config/aarch64/aarch64.md (mov<mode>): Ditto.
  18
  19 2018-06-05  Uros Bizjak  <ubizjak@gmail.com>
  20
  21         * config/i386/i386.md (simple_return_indirect_internal): New expander.
  22         (*simple_return_indirect_internal<mode>): Rename from
  23         simple_return_indirect_internal.  Use W mode iterator.
  24         (rstorssp): New expander.
  25         (*rstorssp<mode>): Rename from rstorssp.  Use P mode iterator.
  26         (clrssbsy): New expander.
  27         (*clrssbsy<mode>): Rename from clrssbsy.  Use P mode iterator.
  28
  29 2018-06-05  Andre Vieira  <andre.simoesdiasvieira@arm.com>
  30
  31         * config/arm/arm_cmse.h (cmse_nsfptr_create): Change typeof to
  32         __typeof__.
  33         (cmse_check_pointed_object): Likewise.
  34
  35 2018-06-05  Martin Liska  <mliska@suse.cz>
  36
  37         PR gcov-profile/47618
  38         * doc/invoke.texi: Document how -fprofile-dir format
  39         is extended.
  40
  41 2018-06-05  Richard Biener  <rguenther@suse.de>
  42
  43         * tree-cfgcleanup.c (cleanup_control_flow_pre): For edge
  44         removal pretend DOM info isn't available so we do not update
  45         it and only remove edges, not dominated blocks.  Actually free
  46         DOM info in case we removed something.  Remove unreachable blocks.
  47         (mfb_keep_latches): Work with either DOM info or marked backedges.
  48         (cleanup_tree_cfg_noloop): Do not remove unreachable blocks
  49         first.  Mark backedges if DOM info isn't available.
  50         (Re-)compute DOM info after cleanup_control_flow_pre.
  51
  52 2018-06-05  Richard Biener  <rguenther@suse.de>
  53
  54         * tree-cfg.c (struct locus_discrim_map): Store line, not location.
  55         (locus_discrim_hasher::hash): Adjust.
  56         (locus_discrim_hasher::equal): Likewise.
  57         (next_discriminator_for_locus): Work on line directly.
  58         (same_line_p): Pass in expanded locus1 as well.
  59         (assign_discriminators): Avoid redundant location expansions.
  60
  61 2018-06-05  Richard Biener  <rguenther@suse.de>
  62
  63         PR tree-optimization/86046
  64         * tree-ssa.c (maybe_optimize_var): Clear DECL_GIMPLE_REG_P
  65         if required after clearing TREE_ADDRESSABLE.
  66
  67 2018-06-05  Richard Biener  <rguenther@suse.de>
  68
  69         PR tree-optimization/86047
  70         * tree-ssa-loop.c (for_each_index): Glob handling of all
  71         decls and constants and really handle all of them.
  72
  73 2018-06-05  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
  74
  75         PR target/81497
  76         * config/arm/arm-builtins.c (arm_type_qualifiers): Add
  77         qualifier_void_pointer and qualifier_const_void_pointer.
  78         (arm_ldc_qualifiers, arm_stc_qualifiers): Use the above.
  79         (arm_init_builtins): Handle the above.
  80         * config/arm/arm_acle.h (__arm_cdp, __arm_ldc, __arm_ldcl, __arm_stc,
  81         __arm_stcl, __arm_mcr, __arm_cdp2, __arm_ldc2, __arm_ldcl2, __arm_stc2,
  82         __arm_stcl2,__arm_mcr2, __arm_mcrr, __arm_mcrr2): Remove return for
  83         void intrinsics.
  84
  85 2018-06-05  Martin Liska  <mliska@suse.cz>
  86
  87         * auto-profile.c (read_autofdo_file): Do not use
  88         gcov_ctr_summary struct.
  89         (afdo_callsite_hot_enough_for_early_inline): Likewise.
  90         * coverage.c (struct counts_entry): Likewise.
  91         (read_counts_file): Read just single summary entry.
  92         (get_coverage_counts): Use gcov_summary struct.
  93         * coverage.h (get_coverage_counts): Likewise.
  94         * gcov-dump.c (dump_working_sets): Likewise.
  95         (tag_summary): Dump just single summary.
  96         * gcov-io.c (gcov_write_summary): Write just histogram
  97         summary.
  98         (gcov_read_summary): Read just single summary.
  99         (compute_working_sets): Use gcov_summary struct.
 100         * gcov-io.h (GCOV_TAG_SUMMARY_LENGTH): Remove usage
 101         of GCOV_COUNTERS_SUMMABLE.
 102         (GCOV_COUNTERS_SUMMABLE): Remove.
 103         (GCOV_FIRST_VALUE_COUNTER): Replace with
 104         GCOV_COUNTER_V_INTERVAL.
 105         (struct gcov_ctr_summary): Remove.
 106         (struct gcov_summary): Directly use fields of former
 107         gcov_ctr_summary.
 108         (compute_working_sets): Use gcov_summary struct.
 109         * gcov.c (read_count_file): Do not use ctrs fields.
 110         * lto-cgraph.c (merge_profile_summaries): Use gcov_summary
 111         struct.
 112         * lto-streamer.h (struct GTY): Make profile_info gcov_summary
 113         struct.
 114         * profile.c: Likewise.
 115         * profile.h: Likewise.
 116
 117 2018-06-05  Martin Liska  <mliska@suse.cz>
 118
 119         PR gcov-profile/84846
 120         * gcov.c (output_lines): Print working directory only
 121         in intermediate format.
 122
 123 2018-06-05  Andreas Krebbel  <krebbel@linux.ibm.com>
 124
 125         * config/s390/s390-builtin-types.def: Add void function type.
 126         * config/s390/s390-builtins.def: Use the function type for the
 127         tbeginc builtin.
 128
 129 2018-06-04  Jim Wilson  <jimw@sifive.com>
 130
 131         * config/riscv/riscv-protos.h (riscv_expand_epilogue): Change bool arg
 132         to int.
 133         * config/riscv/riscv.c (riscv_for_each_saved_reg): New args epilogue
 134         and maybe_eh_return.  Change regno to unsigned int.  Use new args to
 135         handle EH_RETURN_DATA_REGNO registers properly.
 136         (riscv_expand_prologue): Pass new args to riscv_for_each_saved_reg.
 137         (riscv_expand_epilogue): Update comment.  Change argument name and
 138         type.  Update code to use new name and type.  Pass new args to
 139         riscv_for_each_saved_reg.  Only use EH_RETURN_STACKADJ_RTX when
 140         EXCEPTION_RETURN.
 141         * config/riscv/riscv.md (NORMAL_RETURN): New.
 142         (SIBCALL_RETURN, EXCEPTION_RETURN): New.
 143         (epilogue, sibcall_epilogue): Update riscv_expand_epilogue arg.
 144         (eh_return): Call gen_eh_return_internal and emit barrier.
 145         (eh_return_internal): Call riscv_expand_epilogue.
 146
 147 2018-06-04  Eric Botcazou  <ebotcazou@adacore.com>
 148
 149         * gimple-ssa-store-merging.c (struct merged_store_group): Move up
 150         bit_insertion field and declare can_be_merged_into method.
 151         (merged_store_group::can_be_merged_into): New method.
 152         (imm_store_chain_info::coalesce_immediate): Call it to decide whether
 153         consecutive non-overlapping stores can be merged.  Turn MEM_REF stores
 154         into BIT_INSERT_EXPR stores if the group contains a non-MEM_REF store.
 155
 156 2018-06-04  Richard Biener  <rguenther@suse.de>
 157
 158         PR tree-optimization/85955
 159         * builtins.c (fold_builtin_sincos): Convert pointers to
 160         destination to appropriate type before dereferencing.
 161
 162 2018-06-04  Segher Boessenkool  <segher@kernel.crashing.org>
 163
 164         * config/rs6000/rs6000.md (abs<mode>2 for FLOAT128): Handle IFmode.
 165
 166 2018-06-04  Richard Sandiford  <richard.sandiford@linaro.org>
 167
 168         * expr.c (expand_expr_real_1): Force the operand into memory if
 169         its TYPE_MODE is BLKmode and if there is no integer mode for
 170         the number of bits being extracted.
 171
 172 2018-06-04  Jakub Jelinek  <jakub@redhat.com>
 173
 174         PR target/85832
 175         PR target/86036
 176         * config/i386/sse.md (<avx512>_eq<mode>3<mask_scalar_merge_name>_1):
 177         Use vptestnm rather than vptestm in (=Yc,v,C) variant.
 178
 179 2018-06-04  Richard Biener  <rguenther@suse.de>
 180
 181         * tree-cfgcleanup.c (cleanup_tree_cfg_1): Fold into...
 182         (cleanup_tree_cfg_noloop): ... single caller.  Do
 183         start_recording_case_labels later.
 184
 185 2018-06-04  Sebastian Peryt  <sebastian.peryt@intel.com>
 186
 187         * config/i386/cldemoteintrin.h: Change define from _X86INTRIN_H_INCLUDED
 188         to _IMMINTRIN_H_INCLUDED.
 189         * config/i386/pconfigintrin.h: Ditto.
 190         * config/i386/waitpkgintrin.h: Ditto.
 191         * config/i386/immintrin.h: Add includes for sgxintrin.h,
 192         pconfigintrin.h, waitpkgintrin.h and cldemoteintrin.h.
 193         * config/i386/x86intrin.h: Remove includes for mintrin.h, xmmintrin.h,
 194         emmintrin.h, pmmintrin.h, tmmintrin.h, smmintrin.h, wmmintrin.h,
 195         bmiintrin.h, bmi2intrin.h, lzcntintrin.h, sgxintrin.h, pconfigintrin.h,
 196         waitpkgintrin.h and cldemoteintrin.h.
 197
 198 2018-06-04  Richard Biener  <rguenther@suse.de>
 199
 200         PR tree-optimization/86038
 201         * tracer.c (find_best_successor): Check probability for
 202         being initialized, bail out if not.
 203
 204 2018-06-04  Richard Earnshaw  <rearnsha@arm.com>
 205
 206         PR target/86003
 207         * config/arm/arm-cpus.in (ALL_QUIRKS): Add xscale feature to the list
 208         of bits to ignore when comparing architectures.
 209
 210 2018-06-04  Jakub Jelinek  <jakub@redhat.com>
 211
 212         PR tree-optimization/69615
 213         * fold-const.c (merge_ranges): If range1 is - [x, x] and x is the
 214         maximum or minimum of the type, try to merge it also as if
 215         range1 is + [-, x - 1] or + [x + 1, -].
 216
 217         PR c++/86025
 218         * tree.c (inchash::add_expr): Handle IDENTIFIER_NODE.
 219
 220 2018-06-03  Eric Botcazou  <ebotcazou@adacore.com>
 221
 222         PR tree-optimization/86034
 223         * gimple-ssa-store-merging.c (output_merged_store): Convert the RHS to
 224         the unsigned bitfield type in a bit insertion sequence if it does not
 225         have a larger precision than the bitfield size.
 226         (process_store): Also bypass widening conversions for BIT_INSERT_EXPR.
 227
 228 2018-06-03  Kito Cheng  <kito.cheng@gmail.com>
 229
 230         * config/nds32/nds32-peephole2.md: Add new patterns for code size.
 231
 232 2018-06-03  Chung-Ju Wu  <jasonwucj@gmail.com>
 233
 234         * config/nds32/nds32-opts.h (nds32_arch_type): Add ARCH_V3J.
 235         * config/nds32/nds32.c (nds32_option_override): Consider ARCH_V3J.
 236         * config/nds32/nds32.h (TARGET_ISA_V3): Add ARCH_V3J checking.
 237         * config/nds32/nds32.opt (march): Add enum value Value(ARCH_V3J).
 238
 239 2018-06-03  Chung-Ju Wu  <jasonwucj@gmail.com>
 240
 241         * common/config/nds32/nds32-common.c (nds32_option_optimization_table):
 242         Disable -fdelete-null-pointer-checks for ELF toolchain.
 243
 244 2018-06-02  Chung-Ju Wu  <jasonwucj@gmail.com>
 245             Kito Cheng  <kito.cheng@gmail.com>
 246
 247         * config.gcc (nds32*): Use nds32-linux.opt and nds32-elf.opt.
 248         (nds32le-*-*, nds32be-*-*): Integrate checking process.
 249         (nds32*-*-*): Add glibc and uclibc conditions.
 250         * common/config/nds32/nds32-common.c (nds32_except_unwind_info): New.
 251         (TARGET_EXCEPT_UNWIND_INFO): Define.
 252         * config/nds32/elf.h: New file.
 253         * config/nds32/linux.h: New file.
 254         * config/nds32/nds32-elf.opt: New file.
 255         * config/nds32/nds32-linux.opt: New file.
 256         * config/nds32/nds32-fp-as-gp.c
 257         (pass_nds32_fp_as_gp::gate): Consider TARGET_LINUX_ABI.
 258         * config/nds32/nds32.c (nds32_conditional_register_usage): Consider
 259         TARGET_LINUX_ABI.
 260         (nds32_asm_file_end): Ditto.
 261         (nds32_print_operand): Ditto.
 262         (nds32_insert_attributes): Ditto.
 263         (nds32_init_libfuncs): New function.
 264         (TARGET_HAVE_TLS): Define.
 265         (TARGET_INIT_LIBFUNCS): Define.
 266         * config/nds32/nds32.h (TARGET_DEFAULT_RELAX): Apply different relax
 267         spec content.
 268         (TARGET_ELF): Apply different mcmodel setting.
 269         (LINK_SPEC, LIB_SPEC, STARTFILE_SPEC, ENDFILE_SPEC): The content has
 270         been migrated into elf.h and linux.h files.
 271         * config/nds32/nds32.md (add_pc): Consider TARGET_LINUX_ABI.
 272         * config/nds32/nds32.opt (mvh): Consider TARGET_LINUX_ABI.
 273         (mcmodel): The content has been migrated into nds32-elf.opt and
 274         nds32-linux.opt files.
 275         * config/nds32/t-elf: New file.
 276         * config/nds32/t-linux: New file.
 277
 278 2018-06-02  Chung-Ju Wu  <jasonwucj@gmail.com>
 279             Shiva Chen  <shiva0217@gmail.com>
 280
 281         * config/nds32/constants.md (unspec_volatile_element): Add
 282         UNSPEC_VOLATILE_OMIT_FP_BEGIN and UNSPEC_VOLATILE_OMIT_FP_END.
 283         * config/nds32/nds32-fp-as-gp.c: New implementation of fp_as_gp
 284         optimization.
 285         * config/nds32/nds32-protos.h (nds32_naked_function_p): Declare.
 286         (make_pass_nds32_fp_as_gp): Declare.
 287         * config/nds32/nds32.c (nds32_register_passes): Add fp_as_gp as one
 288         optmization pass.
 289         (nds32_asm_function_end_prologue): Remove unused asm output.
 290         (nds32_asm_function_begin_epilogue): Remove unused asm output.
 291         (nds32_asm_file_start): Output necessary fp_as_gp information.
 292         (nds32_option_override): Adjust register usage.
 293         (nds32_expand_prologue): Consider fp_as_gp situation.
 294         (nds32_expand_prologue_v3push): Consider fp_as_gp situation.
 295         * config/nds32/nds32.md (prologue): Check fp_as_gp_p and naked_p.
 296         (epilogue): Ditto.
 297         (return): Ditto.
 298         (simple_return): Ditto.
 299         (omit_fp_begin): Output special directive for fp_as_gp.
 300         (omit_fp_end): Output special directive for fp_as_gp.
 301         * config/nds32/nds32.opt (mfp-as-gp, mno-fp-as-gp, mforce-fp-as-gp,
 302         mforbid-fp-as-gp): New options.
 303
 304 2018-06-01  Mark Wielaard  <mark@klomp.org>
 305
 306         * dwarf2out.c (dwarf2out_finish): Remove generation of
 307         DW_AT_loclists_base.
 308
 309 2018-06-01  Eric Botcazou  <ebotcazou@adacore.com>
 310
 311         * gimple-ssa-store-merging.c: Include gimple-fold.h.
 312         (struct store_immediate_info): Document BIT_INSERT_EXPR stores.
 313         (struct merged_store_group): Add bit_insertion field.
 314         (dump_char_array): Use standard hexadecimal format.
 315         (merged_store_group::merged_store_group): Set bit_insertion to false.
 316         (merged_store_group::apply_stores): Use optimal buffer size.  Deal
 317         with BIT_INSERT_EXPR stores.  Move up code updating the mask and
 318         also print the mask in the dump file.
 319         (pass_store_merging::gate): Minor tweak.
 320         (imm_store_chain_info::coalesce_immediate): Fix wrong association
 321         of stores with groups in dump.  Allow coalescing of BIT_INSERT_EXPR
 322         stores with INTEGER_CST stores.
 323         (count_multiple_uses) <BIT_INSERT_EXPR>: New case.
 324         (imm_store_chain_info::output_merged_store): Add try_bitpos variable
 325         and use it throughout.  Generate bit insertion sequences if need be.
 326         (pass_store_merging::process_store): Remove redundant condition.
 327         Record stores from a SSA name to a bit-field with BIT_INSERT_EXPR.
 328
 329 2018-06-01  Segher Boessenkool  <segher@kernel.crashing.org>
 330
 331         * config/rs6000/rs6000.c (rs6000_mangle_type): Change the mangling of
 332         the 128-bit floating point types.  Fix function comment.
 333
 334 2018-06-01  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 335
 336         * config/aarch64/aarch64-simd.md
 337         (aarch64_simd_vec_unpack<su>_lo_<mode>): Use UXTL and SXTL assembler
 338         mnemonics.
 339         (aarch64_simd_vec_unpack<su>_hi_<mode>): Use UXTL2 and SXTL2 assembler
 340         mnemonics.
 341
 342 2018-06-01  Richard Sandiford  <richard.sandiford@linaro.org>
 343
 344         PR tree-optimization/85989
 345         * gimple-ssa-backprop.c (backprop::m_visited_phis): New member
 346         variable.
 347         (backprop::intersect_uses): Check it when deciding whether this
 348         is a backedge reference.
 349         (backprop::process_block): Add each phi to m_visited_phis
 350         after visiting it, then clear it at the end.
 351
 352 2018-06-01  Richard Biener  <rguenther@suse.de>
 353
 354         * tree-vectorizer.h (vect_dr_stmt): New function.
 355         (vect_get_load_cost): Adjust.
 356         (vect_get_store_cost): Likewise.
 357         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence):
 358         Use vect_dr_stmt instead of DR_SMTT.
 359         (vect_record_base_alignments): Likewise.
 360         (vect_calculate_target_alignment): Likewise.
 361         (vect_compute_data_ref_alignment): Likewise and make static.
 362         (vect_update_misalignment_for_peel): Likewise.
 363         (vect_verify_datarefs_alignment): Likewise.
 364         (vector_alignment_reachable_p): Likewise.
 365         (vect_get_data_access_cost): Likewise.  Pass down
 366         vinfo to vect_get_load_cost/vect_get_store_cost instead of DR.
 367         (vect_get_peeling_costs_all_drs): Likewise.
 368         (vect_peeling_hash_get_lowest_cost): Likewise.
 369         (vect_enhance_data_refs_alignment): Likewise.
 370         (vect_find_same_alignment_drs): Likewise.
 371         (vect_analyze_data_refs_alignment): Likewise.
 372         (vect_analyze_group_access_1): Likewise.
 373         (vect_analyze_group_access): Likewise.
 374         (vect_analyze_data_ref_access): Likewise.
 375         (vect_analyze_data_ref_accesses): Likewise.
 376         (vect_vfa_segment_size): Likewise.
 377         (vect_small_gap_p): Likewise.
 378         (vectorizable_with_step_bound_p): Likewise.
 379         (vect_prune_runtime_alias_test_list): Likewise.
 380         (vect_analyze_data_refs): Likewise.
 381         (vect_supportable_dr_alignment): Likewise.
 382         * tree-vect-loop-manip.c (get_misalign_in_elems): Likewise.
 383         (vect_gen_prolog_loop_niters): Likewise.
 384         * tree-vect-loop.c (vect_analyze_loop_2): Likewise.
 385         * tree-vect-patterns.c (vect_recog_bool_pattern): Do not
 386         modify DR_STMT.
 387         (vect_recog_mask_conversion_pattern): Likewise.
 388         (vect_try_gather_scatter_pattern): Likewise.
 389         * tree-vect-stmts.c (vect_model_store_cost): Pass stmt_info
 390         to vect_get_store_cost.
 391         (vect_get_store_cost): Get stmt_info instead of DR.
 392         (vect_model_load_cost): Pass stmt_info to vect_get_load_cost.
 393         (vect_get_load_cost): Get stmt_info instead of DR.
 394
 395 2018-06-01  Richard Biener  <rguenther@suse.de>
 396
 397         PR middle-end/86017
 398         * gimple-fold.c (var_decl_component_p): Also allow offsetted
 399         vars wrapped in MEM_REFs.
 400
 401 2018-06-01  Richard Sandiford  <richard.sandiford@linaro.org>
 402
 403         * config/aarch64/aarch64.c (aarch64_ira_change_pseudo_allocno_class):
 404         Fix subreg tests so that we only return a choice between
 405         GENERAL_REGS and FP_REGS if the original classes included both.
 406
 407 2018-06-01  Richard Biener  <rguenther@suse.de>
 408
 409         PR ipa/85960
 410         * tree-ssa-structalias.c (get_function_part_constraint):
 411         Handle NULL fi->decl.
 412         (find_func_aliases_for_call): Properly handle indirect
 413         fi from direct call.
 414         (find_func_clobbers): Likewise.
 415         (ipa_pta_execute): Likewise.
 416         (create_variable_info_for): For functions that are ifunc_resolver
 417         resolve to a varinfo that contains the result of the resolver call.
 418         (associate_varinfo_to_alias): Do not treat ifunc resolvers as
 419         aliases.
 420
 421 2018-05-31  Michael Collison  <michael.collison@arm.com>
 422
 423         * config/aarch64/aarch64.md:
 424         (*fix_to_zero_extenddfdi2): New pattern.
 425         * gcc.target/aarch64/fix_extend1.c: New testcase.
 426
 427 2018-05-31  Qing Zhao <qing.zhao@oracle.com>
 428
 429         PR middle-end/78809
 430         PR middle-end/83026
 431         * builtins.c (expand_builtin): Add the handling of BUILT_IN_STRCMP_EQ
 432         and BUILT_IN_STRNCMP_EQ.
 433         * builtins.def: Add new builtins BUILT_IN_STRCMP_EQ and
 434         BUILT_IN_STRNCMP_EQ.
 435         * gimple-fold.c (gimple_fold_builtin_string_compare): Add the
 436         handling of BUILTIN_IN_STRCMP_EQ and BUILT_IN_STRNCMP_EQ.
 437         (gimple_fold_builtin): Likewise.
 438         * tree-ssa-strlen.c (compute_string_length): New function.
 439         (determine_min_obsize): New function.
 440         (handle_builtin_string_cmp): New function to handle calls to
 441         string compare functions.
 442         (strlen_optimize_stmt): Add handling to builtin string compare
 443         calls.
 444         * tree-ssa-structalias.c (find_func_aliases_for_builtin_call):
 445         Add the handling of BUILT_IN_STRCMP_EQ and BUILT_IN_STRNCMP_EQ.
 446         * tree.c (build_common_builtin_nodes): Add new defines of
 447         BUILT_IN_STRNCMP_EQ and BUILT_IN_STRCMP_EQ.
 448
 449 2018-05-31  Jakub Jelinek  <jakub@redhat.com>
 450
 451         PR target/85984
 452         * bb-reorder.c (pass_partition_blocks::gate): Return false for
 453         functions with naked attribute.
 454
 455 2018-05-31  Uros Bizjak  <ubizjak@gmail.com>
 456
 457         * config/i386/sse.md (avx_vec_concat<mode>):
 458         Substitute concat_tg_mode mode attribute with xtg_mode.
 459         (<mask_codefor>avx512dq_broadcast<mode><mask_name>_1): Ditto.
 460         (concat_tg_mode): Remove mode attribute.
 461
 462 2018-05-31  Martin Sebor  <msebor@redhat.com>
 463
 464         PR c/82063
 465         * calls.c (alloc_max_size): Correct a logic error/typo.
 466         Treat excessive arguments as infinite.  Warn for invalid arguments.
 467         * doc/invoke.texi (-Walloc-size-larger-than): Update.
 468
 469 2018-05-31  H.J. Lu  <hongjiu.lu@intel.com>
 470
 471         PR target/85829
 472         * config/i386/x86-tune.def: Re-enable partial_reg_dependency
 473         and movx for Haswell.
 474
 475 2018-05-31  Chung-Lin Tang  <cltang@codesourcery.com>
 476             Cesar Philippidis  <cesar@codesourcery.com>
 477
 478         PR middle-end/85879
 479         * gimplify.c (gimplify_adjust_omp_clauses): Add 'remove = true'
 480         when emitting error on private/firstprivate reductions.
 481         * omp-low.c (lower_omp_target): Avoid reference-type processing
 482         on pointers for firstprivate clause.
 483
 484 2018-05-31 Sameera Deshpande <sameera.deshpande@linaro.org>
 485
 486         * config/aarch64/aarch64-simd-builtins.def (ld1x3): New.
 487         (st1x2): Likewise.
 488         (st1x3): Likewise.
 489         * config/aarch64/aarch64-simd.md
 490         (aarch64_ld1x3<VALLDIF:mode>): New pattern.
 491         (aarch64_ld1_x3_<mode>): Likewise
 492         (aarch64_st1x2<VALLDIF:mode>): Likewise
 493         (aarch64_st1_x2_<mode>): Likewise
 494         (aarch64_st1x3<VALLDIF:mode>): Likewise
 495         (aarch64_st1_x3_<mode>): Likewise
 496         * config/aarch64/arm_neon.h (vld1_u8_x3): New function.
 497         (vld1_s8_x3): Likewise.
 498         (vld1_u16_x3): Likewise.
 499         (vld1_s16_x3): Likewise.
 500         (vld1_u32_x3): Likewise.
 501         (vld1_s32_x3): Likewise.
 502         (vld1_u64_x3): Likewise.
 503         (vld1_s64_x3): Likewise.
 504         (vld1_f16_x3): Likewise.
 505         (vld1_f32_x3): Likewise.
 506         (vld1_f64_x3): Likewise.
 507         (vld1_p8_x3): Likewise.
 508         (vld1_p16_x3): Likewise.
 509         (vld1_p64_x3): Likewise.
 510         (vld1q_u8_x3): Likewise.
 511         (vld1q_s8_x3): Likewise.
 512         (vld1q_u16_x3): Likewise.
 513         (vld1q_s16_x3): Likewise.
 514         (vld1q_u32_x3): Likewise.
 515         (vld1q_s32_x3): Likewise.
 516         (vld1q_u64_x3): Likewise.
 517         (vld1q_s64_x3): Likewise.
 518         (vld1q_f16_x3): Likewise.
 519         (vld1q_f32_x3): Likewise.
 520         (vld1q_f64_x3): Likewise.
 521         (vld1q_p8_x3): Likewise.
 522         (vld1q_p16_x3): Likewise.
 523         (vld1q_p64_x3): Likewise.
 524         (vst1_s64_x2): Likewise.
 525         (vst1_u64_x2): Likewise.
 526         (vst1_f64_x2): Likewise.
 527         (vst1_s8_x2): Likewise.
 528         (vst1_p8_x2): Likewise.
 529         (vst1_s16_x2): Likewise.
 530         (vst1_p16_x2): Likewise.
 531         (vst1_s32_x2): Likewise.
 532         (vst1_u8_x2): Likewise.
 533         (vst1_u16_x2): Likewise.
 534         (vst1_u32_x2): Likewise.
 535         (vst1_f16_x2): Likewise.
 536         (vst1_f32_x2): Likewise.
 537         (vst1_p64_x2): Likewise.
 538         (vst1q_s8_x2): Likewise.
 539         (vst1q_p8_x2): Likewise.
 540         (vst1q_s16_x2): Likewise.
 541         (vst1q_p16_x2): Likewise.
 542         (vst1q_s32_x2): Likewise.
 543         (vst1q_s64_x2): Likewise.
 544         (vst1q_u8_x2): Likewise.
 545         (vst1q_u16_x2): Likewise.
 546         (vst1q_u32_x2): Likewise.
 547         (vst1q_u64_x2): Likewise.
 548         (vst1q_f16_x2): Likewise.
 549         (vst1q_f32_x2): Likewise.
 550         (vst1q_f64_x2): Likewise.
 551         (vst1q_p64_x2): Likewise.
 552         (vst1_s64_x3): Likewise.
 553         (vst1_u64_x3): Likewise.
 554         (vst1_f64_x3): Likewise.
 555         (vst1_s8_x3): Likewise.
 556         (vst1_p8_x3): Likewise.
 557         (vst1_s16_x3): Likewise.
 558         (vst1_p16_x3): Likewise.
 559         (vst1_s32_x3): Likewise.
 560         (vst1_u8_x3): Likewise.
 561         (vst1_u16_x3): Likewise.
 562         (vst1_u32_x3): Likewise.
 563         (vst1_f16_x3): Likewise.
 564         (vst1_f32_x3): Likewise.
 565         (vst1_p64_x3): Likewise.
 566         (vst1q_s8_x3): Likewise.
 567         (vst1q_p8_x3): Likewise.
 568         (vst1q_s16_x3): Likewise.
 569         (vst1q_p16_x3): Likewise.
 570         (vst1q_s32_x3): Likewise.
 571         (vst1q_s64_x3): Likewise.
 572         (vst1q_u8_x3): Likewise.
 573         (vst1q_u16_x3): Likewise.
 574         (vst1q_u32_x3): Likewise.
 575         (vst1q_u64_x3): Likewise.
 576         (vst1q_f16_x3): Likewise.
 577         (vst1q_f32_x3): Likewise.
 578         (vst1q_f64_x3): Likewise.
 579         (vst1q_p64_x3): Likewise.
 580
 581 2018-05-30  Jozef Lawrynowicz  <jozef.l@mittosystems.com>
 582
 583         * config/msp430/msp430.c (msp430_output_labelref): Prepend
 584         user_label_prefix to name.
 585
 586         * tree-core.h: Update comment about the format of NAME string
 587         passed to handler in attribute_spec.
 588
 589         * config/msp430/msp430.md: Remove erroneous subreg expression from
 590         zero_extendqisi2 insn pattern. Remove msp430x ISA restriction on
 591         zero_extend{q,h}isi2.
 592
 593 2018-05-30  Borislav Petkov  <bp@suse.de>
 594
 595         * doc/extend.texi: Document some architecture specific
 596         constraints and sort entries.
 597
 598 2018-05-30  Martin Sebor  <msebor@redhat.com>
 599
 600         PR middle-end/85369
 601         * builtins.c (expand_builtin_stpcpy_1): New function.
 602         (expand_builtin_stpcpy): Call it, and call maybe_warn_nonstring_arg
 603         only if the former succeeds.
 604
 605 2018-05-31 Sameera Deshpande <sameera.deshpande@linaro.org>
 606
 607         * config/aarch64/aarch64-cores.def (saphira) : Add support for ARMv8.4
 608         in saphira.
 609
 610 2018-05-30  Jan Hubicka  <hubicka@ucw.cz>
 611
 612         * doc/invoke.texi (-flinker-output): Document
 613
 614 2018-05-30  Jan Hubicka  <hubicka@ucw.cz>
 615
 616         * passes.c (ipa_write_summaries): Only modify statements if body
 617         is in memory.
 618         * cgraphunit.c (ipa_passes): Also produce intermeidate code when
 619         incrementally linking.
 620         (ipa_passes): Likewise.
 621         * lto-cgraph.c (lto_output_node): When incrementally linking do not
 622         pass down resolution info.
 623         * common.opt (flag_incremental_link): Update info.
 624         * gcc.c (plugin specs): Turn flinker-output=* to
 625         -plugin-opt=-linker-output-known
 626         * toplev.c (compile_file): Also cut compilation when doing incremental
 627         link.
 628         * flag-types. (enum lto_partition_model): Add
 629         LTO_LINKER_OUTPUT_NOLTOREL.
 630         (invoke.texi): Add -flinker-output docs.
 631         * ipa.c (symbol_table::remove_unreachable_nodes): Handle LTO incremental
 632         link same way as WPA; do not stream in dead initializers.
 633
 634         * dwarf2out.c (dwarf2out_die_ref_for_decl,
 635         darf2out_register_external_decl): Support incremental link.
 636
 637 2018-05-30  Jan Hubicka  <hubicka@ucw.cz>
 638
 639         * lto-opts.c (lto_write_options): Skip OPT_dumpdir, OPT_fresolution_.
 640
 641 2018-05-30  Jan Hubicka  <hubicka@ucw.cz>
 642
 643         * lto-wrapper.c (debug_objcopy): Add rename parameter; pass
 644         it down to simple_object_copy_lto_debug_sections.
 645         (run_gcc): Determine incremental LTO link time and configure
 646         lto1 into non-wpa mode, disable renaming of debug sections.
 647
 648 2018-05-30  Kelvin Nilsen  <kelvin@gcc.gnu.org>
 649
 650         * doc/extend.texi (PowerPC AltiVec Built-in Functions): Remove
 651         descriptions of various incorrectly documented functions.
 652
 653 2018-05-30  Andre Vieira  <andre.simoesdiasvieira@arm.com>
 654
 655         Revert:
 656         * config/aarch64/predicates.md (aarch64_mem_pair_lanes_operand): Make
 657         address check not strict.
 658
 659 2018-05-30  Richard Biener  <rguenther@suse.de>
 660
 661         PR tree-optimization/85964
 662         * tracer.c (better_p): Drop initialized count check, we only
 663         call the function with initialized counts now.
 664         (find_best_successor): Do find a best edge if one
 665         has uninitialized count.
 666         (find_best_predecessor): Likewise.  Do BB frequency check only
 667         if count is initialized.
 668
 669 2017-05-30  Jackson Woodruff  <jackson.woodruff@arm.com>
 670
 671         * config/aarch64/aarch64.c (aarch64_host_wide_int_compare): New.
 672         (aarch64_ldrstr_offset_compare): New.
 673         (aarch64_operands_adjust_ok_for_ldpstp): Update to consider all
 674         load/store orderings.
 675         (aarch64_gen_adjusted_ldpstp): Likewise.
 676
 677 2018-05-30  Wilco Dijkstra  <wdijkstr@arm.com>
 678
 679         * config/aarch64/aarch64.c (aarch64_ira_change_pseudo_allocno_class):
 680         Check for subset of GENERAL_REGS and FP_REGS.
 681         * config/aarch64/aarch64-simd.md (aarch64_get_lane): Increase cost of
 682         r=w alternative.
 683
 684 2018-05-30  Richard Sandiford  <richard.sandiford@linaro.org>
 685
 686         * alias.c (adjust_offset_for_component_ref): Use poly_int_tree_p
 687         and wi::to_poly_offset.  Add the current offset and then check
 688         whether the sum fits, rather than using an unchecked addition of
 689         a checked term.  Check for a shwi rather than a uhwi.
 690         * expr.c (get_bit_range): Use tree_to_poly_uint64.
 691         (store_constructor): Use poly_int_tree_p.
 692         (expand_expr_real_1): Likewise.
 693         * function.c (assign_temp): Likewise.
 694         * fold-const.c (const_binop): Use poly_int_tree_p and
 695         wi::to_poly_offset.
 696         (fold_indirect_ref_1): Likewise.  Use multiple_p to attempt an exact
 697         division.
 698         * ipa-icf-gimple.c (func_checker::compare_operand): Use
 699         to_poly_offset for MEM offsets.
 700         * ipa-icf.c (sem_variable::equals): Likewise.
 701         * stor-layout.c (compute_record_mode): Use poly_int_tree_p.
 702         * tree-ssa-sccvn.c (ao_ref_init_from_vn_reference): Use
 703         wi::to_poly_offset for BIT_FIELD_REF offsets.
 704         (vn_reference_maybe_forwprop_address): Use poly_int_tree_p and
 705         wi::to_poly_offset.
 706         * var-tracking.c (emit_note_insn_var_location): Use
 707         tree_to_poly_uint64.
 708
 709 2018-05-29  Jim Wilson  <jimw@sifive.com>
 710
 711         * config/riscv/riscv.c (riscv_interrupt_type): Fix comment typo.
 712
 713 2018-05-29  Uros Bizjak  <ubizjak@gmail.com>
 714
 715         PR target/85950
 716         * config/i386/i386.md (l<rounding_insn><MODEF:mode><SWI48:mode>2):
 717         Enable for TARGET_SSE4_1 and generate rounds{s,d} and cvtts{s,d}2si{,q}
 718         sequence.
 719         (sse4_1_round<mode>2): Use nonimmediate_operand
 720         for operand 1 predicate.
 721
 722 2018-05-29  Martin Sebor  <msebor@redhat.com>
 723             Richard Biener  <rguenther@suse.de>
 724
 725         PR testsuite/85888
 726         * calls.c (get_size_range): Call determine_value_range instead
 727         of get_value_range..
 728         * tree-vrp.h (determine_value_range): Declared new function.
 729         * tree-vrp.c (determine_value_range_1, determine_value_range): New.
 730
 731 2018-05-29  Richard Biener  <rguenther@suse.de>
 732
 733         * tree-vect-data-refs.c (vect_preserves_scalar_order_p): Make
 734         sure to use non-pattern stmts for get_earlier_stmt arguments.
 735         * tree-vectorizer.h (get_earlier_stmt): Assert we do not get
 736         called on pattern stmts.
 737         (get_later_stmt): Likewise.
 738
 739 2018-05-29  Martin Liska  <mliska@suse.cz>
 740
 741         PR gcov-profile/85759
 742         * doc/gcov.texi: Document GCOV_ERROR_FILE and GCOV_EXIT_AT_ERROR
 743         env variables.
 744
 745 2018-05-29  Jakub Jelinek  <jakub@redhat.com>
 746
 747         * tree-cfg.c (verify_gimple_assign_unary): Add checking for
 748         VEC_UNPACK_*_EXPR.
 749         (verify_gimple_assign_binary): Check TYPE_VECTOR_SUBPARTS for
 750         VEC_PACK_*_EXPR.
 751
 752         PR target/85918
 753         * tree.def (VEC_UNPACK_FIX_TRUNC_HI_EXPR, VEC_UNPACK_FIX_TRUNC_LO_EXPR,
 754         VEC_PACK_FLOAT_EXPR): New tree codes.
 755         * tree-pretty-print.c (op_code_prio): Handle
 756         VEC_UNPACK_FIX_TRUNC_HI_EXPR and VEC_UNPACK_FIX_TRUNC_LO_EXPR.
 757         (dump_generic_node): Handle VEC_UNPACK_FIX_TRUNC_HI_EXPR,
 758         VEC_UNPACK_FIX_TRUNC_LO_EXPR and VEC_PACK_FLOAT_EXPR.
 759         * tree-inline.c (estimate_operator_cost): Likewise.
 760         * gimple-pretty-print.c (dump_binary_rhs): Handle VEC_PACK_FLOAT_EXPR.
 761         * fold-const.c (const_binop): Likewise.
 762         (const_unop): Handle VEC_UNPACK_FIX_TRUNC_HI_EXPR and
 763         VEC_UNPACK_FIX_TRUNC_LO_EXPR.
 764         * tree-cfg.c (verify_gimple_assign_unary): Likewise.
 765         (verify_gimple_assign_binary): Handle VEC_PACK_FLOAT_EXPR.
 766         * cfgexpand.c (expand_debug_expr): Handle VEC_UNPACK_FIX_TRUNC_HI_EXPR,
 767         VEC_UNPACK_FIX_TRUNC_LO_EXPR and VEC_PACK_FLOAT_EXPR.
 768         * expr.c (expand_expr_real_2): Likewise.
 769         * optabs.def (vec_packs_float_optab, vec_packu_float_optab,
 770         vec_unpack_sfix_trunc_hi_optab, vec_unpack_sfix_trunc_lo_optab,
 771         vec_unpack_ufix_trunc_hi_optab, vec_unpack_ufix_trunc_lo_optab): New
 772         optabs.
 773         * optabs.c (expand_widen_pattern_expr): For
 774         VEC_UNPACK_FIX_TRUNC_HI_EXPR and VEC_UNPACK_FIX_TRUNC_LO_EXPR use
 775         sign from result type rather than operand's type.
 776         (expand_binop_directly): For vec_packu_float_optab and
 777         vec_packs_float_optab allow result type to be different from operand's
 778         type.
 779         * optabs-tree.c (optab_for_tree_code): Handle
 780         VEC_UNPACK_FIX_TRUNC_HI_EXPR, VEC_UNPACK_FIX_TRUNC_LO_EXPR and
 781         VEC_PACK_FLOAT_EXPR.  Formatting fixes.
 782         * tree-vect-generic.c (expand_vector_operations_1):  Handle
 783         VEC_UNPACK_FIX_TRUNC_HI_EXPR, VEC_UNPACK_FIX_TRUNC_LO_EXPR and
 784         VEC_PACK_FLOAT_EXPR.
 785         * tree-vect-stmts.c (supportable_widening_operation): Handle
 786         FIX_TRUNC_EXPR.
 787         (supportable_narrowing_operation): Handle FLOAT_EXPR.
 788         * config/i386/i386.md (fixprefix, floatprefix): New code attributes.
 789         * config/i386/sse.md (*float<floatunssuffix>v2div2sf2): Rename to ...
 790         (float<floatunssuffix>v2div2sf2): ... this.  Formatting fix.
 791         (vpckfloat_concat_mode, vpckfloat_temp_mode, vpckfloat_op_mode): New
 792         mode attributes.
 793         (vec_pack<floatprefix>_float_<mode>): New expander.
 794         (vunpckfixt_mode, vunpckfixt_model, vunpckfixt_extract_mode): New mode
 795         attributes.
 796         (vec_unpack_<fixprefix>fix_trunc_lo_<mode>,
 797         vec_unpack_<fixprefix>fix_trunc_hi_<mode>): New expanders.
 798         * doc/md.texi (vec_packs_float_@var{m}, vec_packu_float_@var{m},
 799         vec_unpack_sfix_trunc_hi_@var{m}, vec_unpack_sfix_trunc_lo_@var{m},
 800         vec_unpack_ufix_trunc_hi_@var{m}, vec_unpack_ufix_trunc_lo_@var{m}):
 801         Document.
 802         * doc/generic.texi (VEC_UNPACK_FLOAT_HI_EXPR,
 803         VEC_UNPACK_FLOAT_LO_EXPR): Fix pasto in description.
 804         (VEC_UNPACK_FIX_TRUNC_HI_EXPR, VEC_UNPACK_FIX_TRUNC_LO_EXPR,
 805         VEC_PACK_FLOAT_EXPR): Document.
 806
 807 2018-05-29  Richard Biener  <rguenther@suse.de>
 808
 809         * tree-vectorizer.h (struct vec_info): Add stmt_vec_infos
 810         member.
 811         (stmt_vec_info_vec): Make pointer.
 812         (init_stmt_vec_info_vec): Remove.
 813         (free_stmt_vec_info_vec): Likewise.
 814         (set_stmt_vec_info_vec): New function.
 815         (free_stmt_vec_infos): Likewise.
 816         (vinfo_for_stmt): Adjust for stmt_vec_info_vec indirection.
 817         (set_vinfo_for_stmt): Likewise.
 818         (get_earlier_stmt): Likewise.
 819         (get_later_stmt): Likewise.
 820         * tree-vectorizer.c (stmt_vec_info_vec): Make pointer.
 821         (vec_info::vec_info): Allocate stmt_vec_infos and set the global.
 822         (vec_info::~vec_info): Free stmt_vec_infos.
 823         (vectorize_loops): Set the global stmt_vec_info_vec to NULL.
 824         Remove old init_stmt_vec_info_vec/free_stmt_vec_info_vec calls.
 825         (pass_slp_vectorize::execute): Likewise.
 826         * tree-vect-stmts.c (init_stmt_vec_info_vec): Remove.
 827         (free_stmt_vec_info_vec): Likewise.
 828         (set_stmt_vec_info_vec): New function.
 829         (free_stmt_vec_infos): Likewise.
 830         * tree-vect-loop.c (_loop_vec_info::~_loop_vec_info): Set
 831         the global stmt_vec_info_vec.
 832         * tree-parloops.c (gather_scalar_reductions): Use
 833         set_stmt_vec_info_vec/free_stmt_vec_infos and maintain a local
 834         vector.
 835
 836 2018-05-29  Richard Biener  <rguenther@suse.de>
 837
 838         * dominance.c (iterate_fix_dominators): Push/pop TV_DOMINANCE.
 839
 840 2018-05-29  Martin Liska  <mliska@suse.cz>
 841             David Malcolm  <dmalcolm@redhat.com>
 842
 843         * vec.c (test_reverse): New.
 844         (vec_c_tests): Add new test.
 845         * vec.h (vl_ptr>::reverse): New function.
 846
 847 2018-05-29  Gerald Pfeifer  <gerald@pfeifer.com>
 848
 849         * config.gcc: Identify FreeBSD 3.x and 4.x as unsupported.
 850
 851         * config/freebsd-spec.h (FBSD_LIB_SPEC): Only consider FreeBSD 5
 852         and later.
 853
 854 2018-05-28  Bernd Edlinger  <bernd.edlinger@hotmail.de>
 855
 856         * tree-dump.c (dump_node): Use splay_tree_delete_pointers.
 857
 858 2018-05-28  Richard Biener  <rguenther@suse.de>
 859
 860         PR tree-optimization/85933
 861         * tree-vect-data-refs.c (vect_record_base_alignments): Only
 862         look at stmts marked as vectorizable.
 863
 864 2018-05-28  Richard Biener  <rguenther@suse.de>
 865
 866         PR tree-optimization/85934
 867         * tree-vect-generic.c (expand_vector_operations_1): Hoist
 868         vector boolean check before scalar optimization.
 869
 870 2018-05-28  Jakub Jelinek  <jakub@redhat.com>
 871
 872         * doc/invoke.texi (ARM Options): Use @item instead of @itemx
 873         for armv5te.
 874
 875 2018-05-28  Mark Wielaard  <mark@klomp.org>
 876
 877         * dwarf2asm.c (dw2_asm_output_delta_uleb128): Add brackets around lab2
 878         if it is an expression containing a minus sign.
 879
 880 2018-05-27  John David Anglin  <danglin@gcc.gnu.org>
 881
 882         * config/pa/pa-linux.h (NEED_INDICATE_EXEC_STACK): Define to 0.
 883
 884 2018-05-27  Paul Koning  <ni1d@arrl.net>
 885
 886         * config/pdp11/pdp11.md (truncsihi2): Remove.
 887
 888 2018-05-27  Monk Chiang  <sh.chiang04@gmail.com>
 889             Chung-Ju Wu  <jasonwucj@gmail.com>
 890
 891         * config/nds32/nds32-intrinsic.md (unaligned_storedi): Modify patterns
 892         implementation.
 893         (unaligned_store_dw): Ditto.
 894         * config/nds32/nds32-memory-manipulation.c
 895         (nds32_expand_movmemsi_loop_known_size): Refactoring implementation.
 896         (nds32_gen_dup_4_byte_to_word_value): Rename to ...
 897         (nds32_gen_dup_4_byte_to_word_value_aux): ... this.
 898         (emit_setmem_word_loop): Rename to ...
 899         (emit_setmem_doubleword_loop): ... this.
 900         (nds32_gen_dup_4_byte_to_word_value): New function.
 901         (nds32_gen_dup_8_byte_to_double_word_value): New function.
 902         (nds32_expand_setmem_loop): Refine implementation.
 903         (nds32_expand_setmem_loop_v3m): Ditto.
 904         * config/nds32/nds32-multiple.md (unaligned_store_update_base_dw): New
 905         pattern.
 906
 907 2018-05-27  Chung-Ju Wu  <jasonwucj@gmail.com>
 908
 909         * config/nds32/nds32.md (bswapsi2, bswaphi2): New patterns.
 910
 911 2018-05-27  Chung-Ju Wu  <jasonwucj@gmail.com>
 912
 913         * config/nds32/nds32.c (nds32_attribute_table): Add "no_prologue".
 914         (nds32_init_machine_status): Initialize machine->attr_naked_p and
 915         machine->attr_no_prologue_p.
 916         (nds32_compute_stack_frame): Check "naked" and "no_prologue" attributes.
 917         (nds32_naked_function_p): Handle "naked" and "no_prologue" attributes.
 918         (nds32_expand_epilogue): Consider attr_naked_p.
 919         (nds32_expand_epilogue_v3pop): Likewise.
 920         (nds32_can_use_return_insn): Likewise.
 921         * config/nds32/nds32.h (machine_function): Add attr_naked_p and
 922         attr_no_prologue_p fields.
 923         * config/nds32/nds32.opt (mret-in-naked-func): New option.
 924
 925 2018-05-27  Jakub Jelinek  <jakub@redhat.com>
 926
 927         PR target/85918
 928         * config/i386/i386.md (fixunssuffix, floatunssuffix): New code
 929         attributes.
 930         * config/i386/sse.md
 931         (<floatsuffix>float<sseintvecmodelower><mode>2<mask_name><round_name>):
 932         Rename to ...
 933         (float<floatunssuffix><sseintvecmodelower><mode>2<mask_name><round_name>):
 934         ... this.
 935         (<floatsuffix>float<sselongvecmodelower><mode>2<mask_name><round_name>):
 936         Rename to ...
 937         (float<floatunssuffix><sselongvecmodelower><mode>2<mask_name><round_name>):
 938         ... this.
 939         (*<floatsuffix>floatv2div2sf2): Rename to ...
 940         (*float<floatunssuffix>v2div2sf2): ... this.
 941         (<floatsuffix>floatv2div2sf2_mask): Rename to ...
 942         (float<floatunssuffix>v2div2sf2_mask): ... this.
 943         (*<floatsuffix>floatv2div2sf2_mask_1): Rename to ...
 944         (*float<floatunssuffix>v2div2sf2_mask_1): ... this.
 945         (<fixsuffix>fix_truncv8dfv8si2<mask_name><round_saeonly_name>): Rename
 946         to ...
 947         (fix<fixunssuffix>_truncv8dfv8si2<mask_name><round_saeonly_name>):
 948         ... this.
 949         (<fixsuffix>fix_trunc<mode><sseintvecmodelower>2<mask_name><round_saeonly_name>):
 950         Rename to ...
 951         (fix<fixunssuffix>_trunc<mode><sseintvecmodelower>2<mask_name><round_saeonly_name>):
 952         ... this.
 953         (<fixsuffix>fix_trunc<mode><sselongvecmodelower>2<mask_name><round_saeonly_name>):
 954         Rename to ...
 955         (fix<fixunssuffix>_trunc<mode><sselongvecmodelower>2<mask_name><round_saeonly_name>):
 956         ... this.
 957         (<fixsuffix>fix_truncv2sfv2di2<mask_name>): Rename to ...
 958         (fix<fixunssuffix>_truncv2sfv2di2<mask_name>): ... this.
 959         (vec_pack_ufix_trunc_<mode>): Use gen_fixuns_truncv8dfv8si2 instead of
 960         gen_ufix_truncv8dfv8si2.
 961         * config/i386/i386-builtin.def (__builtin_ia32_cvttpd2uqq256_mask,
 962         __builtin_ia32_cvttpd2uqq128_mask, __builtin_ia32_cvttps2uqq256_mask,
 963         __builtin_ia32_cvttps2uqq128_mask, __builtin_ia32_cvtuqq2ps256_mask,
 964         __builtin_ia32_cvtuqq2ps128_mask, __builtin_ia32_cvtuqq2pd256_mask,
 965         __builtin_ia32_cvtuqq2pd128_mask, __builtin_ia32_cvttpd2udq512_mask,
 966         __builtin_ia32_cvtuqq2ps512_mask, __builtin_ia32_cvtuqq2pd512_mask,
 967         __builtin_ia32_cvttps2uqq512_mask, __builtin_ia32_cvttpd2uqq512_mask):
 968         Use fixuns instead ufix or floatuns instead ufloat in CODE_FOR_ names.
 969
 970 2018-05-24  H.J. Lu  <hongjiu.lu@intel.com>
 971
 972         PR target/85900
 973         PR target/85345
 974         * varasm.c (assemble_alias): Lookup ifunc attribute on error.
 975
 976 2018-05-25  Jim Wilson  <jimw@sifive.com>
 977
 978         * config/riscv/riscv-protos.h (riscv_epilogue_uses): New.
 979         * config/riscv/riscv.c (struct machine_function): Add
 980         interrupt_handler_p and attribute_checked_p fields.
 981         (riscv_attribute_table): Add interrupt.
 982         (riscv_interrupt_type_p): New.
 983         (riscv_save_reg_p): Save extra regs for interrupt handler.
 984         (riscv_use_save_libcall): Return false  for interrupt handler.
 985         (riscv_first_stack_step): Add forward declaration.
 986         (riscv_compute_frame_info): New local interrupt_save_t1.  Set it
 987         for interrupt handler with large frame.  Use it for saved reg list.
 988         (riscv_expand_prologue): Move flag_stack_usage_info support to
 989         eliminate duplication.
 990         (riscv_expand_epilogue): Generate mret for interrupt handler.
 991         (riscv_epilogue_uses): New.
 992         (riscv_can_use_return_insn): Return false for interrupt handler.
 993         (riscv_function_ok_for_sibcall): Likewise.
 994         (riscv_set_current_function): Add interrupt handler support.
 995         * config/riscv/riscv.h (EPILOGUE_USES): Call riscv_epilogue_uses.
 996         * config/riscv/riscv.md (UNSPECV_MRET): New.
 997         (GP_REGNUM): New.
 998         (riscv_frflags, riscv_fsflags): Use tab after opcode.
 999         (riscv_mret): New.
1000         * doc/extend.texi (RISC-V Function Attributes) <interrupt>: New.
1001
1002 2018-05-25  Bill Schmidt  <wschmidt@linux.ibm.com>
1003
1004         PR tree-optimization/85712
1005         * gimple-ssa-strength-reduction.c (replace_one_candidate): Skip if
1006         this candidate has already been replaced in-situ by a copy.
1007
1008 2018-05-25  Jason Merrill  <jason@redhat.com>
1009
1010         PR c++/80485 - inline function non-zero address.
1011         * symtab.c (nonzero_address): Check DECL_COMDAT.
1012
1013 2018-05-25  Uros Bizjak  <ubizjak@gmail.com>
1014
1015         PR target/83628
1016         * config/alpha/alpha.md (ashlsi3): New insn pattern.
1017         (*ashlsi_se): Rename from *ashldi_se.  Define as sign
1018         extension of SImode operation.  Use const123_operand predicate.
1019         (*saddsi_1): Remove.
1020         (*saddl_se_1): Ditto.
1021         (*ssubsi_1): Ditto.
1022         (*ssubl_se_1): Ditto.
1023         * config/alpha/predicates.md (const123_operand): New predicate.
1024         * config/alpha/constraints.md (P): Use IN_RANGE.
1025
1026 2018-05-25  Richard Biener  <rguenther@suse.de>
1027
1028         * tree-ssa-alias.h (refs_may_alias_p): Add tbaa_p bool parameter,
1029         defaulted to true.
1030         (ref_maybe_used_by_stmt_p): Likewise.
1031         (stmt_may_clobber_ref_p): Likewise.
1032         (stmt_may_clobber_ref_p_1): Likewise.
1033         * tree-ssa-alias.c (refs_may_alias_p): Add tbaa_p bool parameter
1034         and pass it along.
1035         (ref_maybe_used_by_stmt_p): Likewise.
1036         (stmt_may_clobber_ref_p): Likewise.
1037         (stmt_may_clobber_ref_p_1): Likewise.
1038         * tree-vect-data-refs.c (vect_slp_analyze_node_dependences): Use
1039         the alias oracle to disambiguate DRs with stmts DR analysis
1040         couldn't handle.
1041         (vect_analyze_data_refs): Do not give up on not analyzable
1042         DRs for BB vectorization.  Remove code truncating the dataref
1043         vector.
1044
1045 2018-05-25  Jakub Jelinek  <jakub@redhat.com>
1046
1047         PR target/85832
1048         * config/i386/sse.md (<avx512>_eq<mode>3<mask_scalar_merge_name>_1):
1049         Add (=Yk,v,C) variant using vptestm insn.  Use TARGET_AVX512BW
1050         in test instead of TARGET_AVX512F for VI12_AVX512VL iterator.
1051
1052 2018-05-25  Richard Biener  <rguenther@suse.de>
1053
1054         * tree-vect-data-refs.c (vect_find_stmt_data_reference): New
1055         function, combining stmt data ref gathering and fatal analysis
1056         parts.
1057         (vect_analyze_data_refs): Remove now redudnant code and simplify.
1058         * tree-vect-loop.c (vect_get_datarefs_in_loop): Factor out from
1059         vect_analyze_loop_2 and use vect_find_stmt_data_reference.
1060         * tree-vect-slp.c (vect_slp_bb): Use vect_find_stmt_data_reference.
1061         * tree-vectorizer.h (vect_find_stmt_data_reference): Declare.
1062
1063 2018-05-25  Bin Cheng  <bin.cheng@arm.com>
1064
1065         PR tree-optimization/85720
1066         * tree-loop-distribution.c (break_alias_scc_partitions): Don't merge
1067         SCC if all partitions are builtins.
1068         (version_loop_by_alias_check): New parameter.  Generate cancelable
1069         runtime alias check if all partitions are builtins.
1070         (distribute_loop): Update call to above function.
1071
1072 2018-05-25  Bin Cheng  <bin.cheng@arm.com>
1073
1074         * tree-outof-ssa.c (tree-ssa.h, tree-dfa.h): Include header files.
1075         (create_default_def, for_all_parms): Moved from tree-ssa-coalesce.c.
1076         (parm_default_def_partition_arg): Ditto.
1077         (set_parm_default_def_partition): Ditto.
1078         (get_parm_default_def_partitions): Ditto and make it static.
1079         (get_undefined_value_partitions): Ditto and make it static.
1080         (remove_ssa_form): Refactor call to init_var_map here.
1081         * tree-ssa-coalesce.c (build_ssa_conflict_graph): Support live range
1082         computation for loop region.
1083         (coalesce_partitions, compute_optimized_partition_bases): Ditto.
1084         (register_default_def): Delete.
1085         (for_all_parms, create_default_def): Move to tree-outof-ssa.c.
1086         (parm_default_def_partition_arg): Ditto.
1087         (set_parm_default_def_partition): Ditto.
1088         (get_parm_default_def_partitions): Ditto and make it static.
1089         (get_undefined_value_partitions): Ditto and make it static.
1090         (coalesce_with_default, coalesce_with_default): Update comment.
1091         (create_coalesce_list_for_region): New func factored out from
1092         create_outofssa_var_map.
1093         (populate_coalesce_list_for_outofssa): New func factored out from
1094         create_outofssa_var_map and coalesce_ssa_name.
1095         (create_outofssa_var_map): Delete.
1096         (coalesce_ssa_name): Refactor to support live range computation.
1097         * tree-ssa-coalesce.h (coalesce_ssa_name): Change decl.
1098         (get_parm_default_def_partitions): Delete.
1099         (get_undefined_value_partitions): Ditto.
1100         * tree-ssa-live.c (init_var_map, delete_var_map): Support live range
1101         computation for loop region.
1102         (new_tree_live_info, loe_visit_block): Ditto.
1103         (live_worklist, set_var_live_on_entry): Ditto.
1104         (calculate_live_on_exit, verify_live_on_entry): Ditto.
1105         * tree-ssa-live.h (struct _var_map): New fields.
1106         (init_var_map): Change decl.
1107         (region_contains_p): New.
1108
1109 2018-05-25  Bin Cheng  <bin.cheng@arm.com>
1110
1111         * tree-ssa-live.h (live_merge_and_clear): Delete.
1112
1113 2018-05-25  Richard Biener  <rguenther@suse.de>
1114
1115         PR c++/85912
1116         * tree-dump.c (dequeue_and_dump): Remove access to removed
1117         operand 2 of a SWITCH_EXPR.
1118
1119 2018-05-25  Richard Sandiford  <richard.sandiford@linaro.org>
1120
1121         * doc/sourcebuild.texi (vect_double_cond_arith): Include
1122         multiplication and division.
1123         * doc/md.texi (cond_mul@var{m}, cond_div@var{m}, cond_mod@var{m})
1124         (cond_udiv@var{m}, cond_umod@var{m}): Document.
1125         * optabs.def (cond_smul_optab, cond_sdiv_optab, cond_smod_optab)
1126         (cond_udiv_optab, cond_umod_optab): New optabs.
1127         * internal-fn.def (IFN_COND_MUL, IFN_COND_DIV, IFN_COND_MOD)
1128         (IFN_COND_RDIV): New internal functions.
1129         * internal-fn.c (get_conditional_internal_fn): Handle TRUNC_DIV_EXPR,
1130         TRUNC_MOD_EXPR and RDIV_EXPR.
1131         * match.pd (UNCOND_BINARY, COND_BINARY): Handle them.
1132         * config/aarch64/iterators.md (UNSPEC_COND_MUL, UNSPEC_COND_DIV):
1133         New unspecs.
1134         (SVE_INT_BINARY): Include mult.
1135         (SVE_COND_FP_BINARY): Include UNSPEC_MUL and UNSPEC_DIV.
1136         (optab, sve_int_op): Handle mult.
1137         (optab, sve_fp_op, commutative): Handle UNSPEC_COND_MUL and
1138         UNSPEC_COND_DIV.
1139         * config/aarch64/aarch64-sve.md (cond_<optab><mode>): New pattern
1140         for SVE_INT_BINARY_SD.
1141
1142 2018-05-25  Richard Sandiford  <richard.sandiford@linaro.org>
1143
1144         * config/aarch64/iterators.md (SVE_INT_BINARY_SD): New code iterator.
1145         (optab, sve_int_op): Handle div and udiv.
1146         * config/aarch64/aarch64-sve.md (<optab><mode>3): New expander
1147         for SVE_INT_BINARY_SD.
1148         (*<optab><mode>3): New insn for the same.
1149
1150 2018-05-25  Richard Sandiford  <richard.sandiford@linaro.org>
1151
1152         * tree-vect-patterns.c: Include predict.h.
1153         (vect_recog_divmod_pattern): Restrict check for division support
1154         to when optimizing for size.
1155
1156 2018-05-25  Richard Sandiford  <richard.sandiford@linaro.org>
1157
1158         * doc/sourcebuild.texi (vect_double_cond_arith: Document.
1159         * gimple-match.h (gimple_match_op::MAX_NUM_OPS): Bump to 4.
1160         (gimple_match_op::gimple_match_op): Add an overload for 4 operands.
1161         (gimple_match_op::set_op): Likewise.
1162         (gimple_resimplify4): Declare.
1163         * genmatch.c (get_operand_type): Handle CFN_COND_* functions.
1164         (expr::gen_transform): Likewise.
1165         (decision_tree::gen): Generate a simplification routine for 4 operands.
1166         * gimple-match-head.c (gimple_simplify): Add an overload for
1167         4 operands.  In the top-level function, handle up to 4 call
1168         arguments and call gimple_resimplify4.
1169         (gimple_resimplify4): New function.
1170         (build_call_internal): Pass a fourth operand.
1171         (maybe_push_to_seq): Likewise.
1172         * match.pd (UNCOND_BINARY, COND_BINARY): New operator lists.
1173         Fold VEC_COND_EXPRs of an operation and a default value into
1174         an IFN_COND_* function if possible.
1175         * config/aarch64/iterators.md (UNSPEC_COND_MAX, UNSPEC_COND_MIN):
1176         New unspecs.
1177         (SVE_COND_FP_BINARY): Include them.
1178         (optab, sve_fp_op): Handle them.
1179         (SVE_INT_BINARY_REV): New code iterator.
1180         (SVE_COND_FP_BINARY_REV): New int iterator.
1181         (commutative): New int attribute.
1182         * config/aarch64/aarch64-protos.h (aarch64_sve_prepare_conditional_op):
1183         Declare.
1184         * config/aarch64/aarch64.c (aarch64_sve_prepare_conditional_op): New
1185         function.
1186         * config/aarch64/aarch64-sve.md (cond_<optab><mode>): Use it.
1187         (*cond_<optab><mode>): New patterns for reversed operands.
1188
1189 2018-05-25  Richard Biener  <rguenther@suse.de>
1190
1191         * tree-vectorizer.h (STMT_VINFO_GROUP_*, GROUP_*): Remove.
1192         (DR_GROUP_*): New, assert we have non-NULL ->data_ref_info.
1193         (REDUC_GROUP_*): New, assert we have NULL ->data_ref_info.
1194         (STMT_VINFO_GROUPED_ACCESS): Adjust.
1195         * tree-vect-data-refs.c (everywhere): Adjust users.
1196         * tree-vect-loop.c (everywhere): Likewise.
1197         * tree-vect-slp.c (everywhere): Likewise.
1198         * tree-vect-stmts.c (everywhere): Likewise.
1199         * tree-vect-patterns.c (vect_reassociating_reduction_p): Likewise.
1200
1201 2018-05-25  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1202
1203         * configure.ac (gcc_cv_as_section_has_e): Move to common section.
1204         Rename to...
1205         (gcc_cv_as_section_exclude): ... this.
1206         Try Solaris as #exclude syntax.
1207         * configure: Regenerate.
1208         * config.in: Regenerate.
1209         * config/i386/i386.c (i386_solaris_elf_named_section): Handle
1210         SECTION_EXCLUDE.
1211         * config/sparc/sparc.c (sparc_solaris_elf_asm_named_section)
1212         [HAVE_GAS_SECTION_EXCLUDE]: Handle SECTION_EXCLUDE.
1213
1214         * varasm.c (default_elf_asm_named_section): Don't check if
1215         HAVE_GAS_SECTION_EXCLUDE is defined.
1216
1217 2018-05-25  Richard Sandiford  <richard.sandiford@linaro.org>
1218
1219         * doc/md.texi: Update the documentation of the cond_* optabs
1220         to mention the new final operand.  Fix GET_MODE_NUNITS call.
1221         Describe the scalar case too.
1222         * internal-fn.def (IFN_EXTRACT_LAST): Change type to fold_left.
1223         * internal-fn.c (expand_cond_unary_optab_fn): Expect 3 operands
1224         instead of 2.
1225         (expand_cond_binary_optab_fn): Expect 4 operands instead of 3.
1226         (get_conditional_internal_fn): Update comment.
1227         * tree-vect-loop.c (vectorizable_reduction): Pass the original
1228         accumulator value as a final argument to conditional functions.
1229         * config/aarch64/aarch64-sve.md (cond_<optab><mode>): Turn into
1230         a define_expand and add an "else" operand.  Assert for now that
1231         the else operand is equal to operand 2.  Use SVE_INT_BINARY and
1232         SVE_COND_FP_BINARY instead of SVE_COND_INT_OP and SVE_COND_FP_OP.
1233         (*cond_<optab><mode>): New patterns.
1234         * config/aarch64/iterators.md (UNSPEC_COND_SMAX, UNSPEC_COND_UMAX)
1235         (UNSPEC_COND_SMIN, UNSPEC_COND_UMIN, UNSPEC_COND_AND, UNSPEC_COND_ORR)
1236         (UNSPEC_COND_EOR): Delete.
1237         (optab): Remove associated mappings.
1238         (SVE_INT_BINARY): New code iterator.
1239         (sve_int_op): Remove int attribute and add "minus" to the code
1240         attribute.
1241         (SVE_COND_INT_OP): Delete.
1242         (SVE_COND_FP_OP): Rename to...
1243         (SVE_COND_FP_BINARY): ...this.
1244
1245 2018-05-25  Richard Sandiford  <richard.sandiford@linaro.org>
1246
1247         * optabs.c (can_reuse_operands_p): New function.
1248         (maybe_legitimize_operands): Try to reuse the results for
1249         earlier operands.
1250
1251 2018-05-24  Uros Bizjak  <ubizjak@gmail.com>
1252
1253         * config/i386/sse.md (cvtusi2<ssescalarmodesuffix>64<round_name>):
1254         Add {q} suffix to insn mnemonic.
1255
1256 2018-05-23  Jozef Lawrynowicz  <jozef.l@mittosystems.com>
1257
1258         * config/msp430/msp430.c (TARGET_WARN_FUNC_RETURN): Define.
1259         (msp430_warn_func_return): New.
1260
1261 2018-05-24  Roger Sayle  <roger@nextmovesoftware.com>
1262
1263         * fold-const.c (tree_nonzero_bits): New function.
1264         * fold-const.h (tree_nonzero_bits): Likewise.
1265         * match.pd (POPCOUNT): New patterns to fold BUILTIN_POPCOUNT and
1266         friends.  POPCOUNT(x&1) => x&1, POPCOUNT(x)==0 => x==0, etc.
1267
1268 2018-05-24  H.J. Lu  <hongjiu.lu@intel.com>
1269
1270         PR target/85900
1271         PR target/85345
1272         * varasm.c (assemble_alias): Check ifunc_resolver only on
1273         FUNCTION_DECL.
1274
1275 2018-05-24  Uros Bizjak  <ubizjak@gmail.com>
1276
1277         PR target/85903
1278         * config/i386/sse.md (movdi_to_sse): Do not generate pseudo
1279         when memory input operand is handled.
1280
1281 2018-05-24  Luis Machado  <luis.machado@linaro.org>
1282
1283         * config/aarch64/aarch64.c (qdf24xx_addrcost_table): New static
1284         global.
1285         (qdf24xx_tunings) <addr_costs>: Set to qdf24xx_addrcost_table.
1286
1287 2018-05-24  Richard Sandiford  <richard.sandiford@linaro.org>
1288
1289         * match.pd: Delay FMA folds until after vectorization.
1290
1291 2018-05-24  Andre Vieira  <andre.simoesdiasvieira@arm.com>
1292
1293         PR target/83009
1294         * config/aarch64/predicates.md (aarch64_mem_pair_lanes_operand): Make
1295         address check not strict.
1296
1297 2018-05-24  Richard Sandiford  <richard.sandiford@linaro.org>
1298
1299         * gimple-match.h (gimple_match_op): New class.
1300         (mprts_hook): Replace parameters with a gimple_match_op *.
1301         (maybe_build_generic_op): Likewise.
1302         (gimple_simplified_result_is_gimple_val): Replace parameters with
1303         a const gimple_match_op *.
1304         (gimple_simplify): Replace code_helper * and tree * parameters with
1305         a gimple_match_op * parameter.
1306         (gimple_resimplify1): Replace code_helper *, tree and tree *
1307         parameters with a gimple_match_op * parameter.
1308         (gimple_resimplify2): Likewise.
1309         (gimple_resimplify3): Likewise.
1310         (maybe_push_res_to_seq): Replace code_helper, tree and tree *
1311         parameters with a gimple_match_op * parameter.
1312         * gimple-match-head.c (gimple_simplify): Change prototypes of
1313         auto-generated functions to take a gimple_match_op * instead of
1314         separate code_helper * and tree * parameters.  Make the same
1315         change in the top-level overload and update calls to the
1316         gimple_resimplify routines.  Update calls to the auto-generated
1317         functions and to maybe_push_res_to_seq in the publicly-facing
1318         operation-specific gimple_simplify overloads.
1319         (gimple_match_op::MAX_NUM_OPS): Define.
1320         (gimple_resimplify1): Replace rcode and ops with a single res_op
1321         parameter.  Update call to gimple_simplify.
1322         (gimple_resimplify2): Likewise.
1323         (gimple_resimplify3): Likewise.
1324         (mprts_hook): Replace parameters with a gimple_match_op *.
1325         (maybe_build_generic_op): Likewise.
1326         (build_call_internal): Replace type, nargs and ops with
1327         a gimple_match_op *.
1328         (maybe_push_res_to_seq): Replace res_code, type and ops parameters
1329         with a single gimple_match_op *.  Update calls to mprts_hook,
1330         build_call_internal and gimple_simplified_result_is_gimple_val.
1331         Factor out code that is common to the tree_code and combined_fn cases.
1332         * genmatch.c (expr::gen_transform): Replace tem_code and
1333         tem_ops with a gimple_match_op called tem_op.  Update calls
1334         to the gimple_resimplify functions and maybe_push_res_to_seq.
1335         (dt_simplify::gen_1): Manipulate res_op instead of res_code and
1336         res_ops.  Update call to the gimple_resimplify functions.
1337         (dt_simplify::gen): Pass res_op instead of res_code and res_ops.
1338         (decision_tree::gen): Make the functions take a gimple_match_op *
1339         called res_op instead of separate res_code and res_ops parameters.
1340         Update call accordingly.
1341         * gimple-fold.c (replace_stmt_with_simplification): Replace rcode
1342         and ops with a single res_op parameter.  Update calls to
1343         maybe_build_generic_op and maybe_push_res_to_seq.
1344         (fold_stmt_1): Update calls to gimple_simplify and
1345         replace_stmt_with_simplification.
1346         (gimple_fold_stmt_to_constant_1): Update calls to gimple_simplify
1347         and gimple_simplified_result_is_gimple_val.
1348         * tree-cfgcleanup.c (cleanup_control_expr_graph): Update call to
1349         gimple_simplify.
1350         * tree-ssa-sccvn.c (vn_lookup_simplify_result): Replace parameters
1351         with a gimple_match_op *.
1352         (vn_nary_build_or_lookup): Likewise.  Update call to
1353         vn_nary_build_or_lookup_1.
1354         (vn_nary_build_or_lookup_1): Replace rcode, type and ops with a
1355         gimple_match_op *.  Update calls to the gimple_resimplify routines
1356         and to gimple_simplified_result_is_gimple_val.
1357         (vn_nary_simplify): Update call to vn_nary_build_or_lookup_1.
1358         Use gimple_match_op::MAX_NUM_OPS instead of a hard-coded 3.
1359         (vn_reference_lookup_3): Update call to vn_nary_build_or_lookup.
1360         (visit_nary_op): Likewise.
1361         (visit_reference_op_load): Likewise.
1362
1363 2018-05-23  Luis Machado  <luis.machado@linaro.org>
1364
1365         * tree-ssa-loop-prefetch.c (should_issue_prefetch_p): Use correct type
1366         modifier for printing the step amount.
1367
1368 2018-05-23  Jozef Lawrynowicz  <jozef.l@somniumtech.com>
1369
1370         PR target/78849
1371         * gcc/tree.c (build_common_tree_nodes): Dont set TYPE_SIZE for __intN
1372         types.
1373
1374 2018-05-23  Segher Boessenkool  <segher@kernel.crashing.org>
1375
1376         * doc/sourcebuild.texi (Endianness): New subsubsection.
1377
1378 2018-05-23  Luis Machado  <luis.machado@linaro.org>
1379
1380         * config/aarch64/aarch64-protos.h (cpu_prefetch_tune)
1381         <prefetch_dynamic_strides>: New const bool field.
1382         * config/aarch64/aarch64.c (generic_prefetch_tune): Update to include
1383         prefetch_dynamic_strides.
1384         (exynosm1_prefetch_tune): Likewise.
1385         (thunderxt88_prefetch_tune): Likewise.
1386         (thunderx_prefetch_tune): Likewise.
1387         (thunderx2t99_prefetch_tune): Likewise.
1388         (qdf24xx_prefetch_tune): Likewise. Set prefetch_dynamic_strides to
1389         false.
1390         (aarch64_override_options_internal): Update to set
1391         PARAM_PREFETCH_DYNAMIC_STRIDES.
1392         * doc/invoke.texi (prefetch-dynamic-strides): Document new option.
1393         * params.def (PARAM_PREFETCH_DYNAMIC_STRIDES): New.
1394         * params.h (PARAM_PREFETCH_DYNAMIC_STRIDES): Define.
1395         * tree-ssa-loop-prefetch.c (should_issue_prefetch_p): Account for
1396         prefetch-dynamic-strides setting.
1397
1398 2018-05-23  Luis Machado  <luis.machado@linaro.org>
1399
1400         * config/aarch64/aarch64-protos.h (cpu_prefetch_tune)
1401         <minimum_stride>: New const int field.
1402         * config/aarch64/aarch64.c (generic_prefetch_tune): Update to include
1403         minimum_stride field defaulting to -1.
1404         (exynosm1_prefetch_tune): Likewise.
1405         (thunderxt88_prefetch_tune): Likewise.
1406         (thunderx_prefetch_tune): Likewise.
1407         (thunderx2t99_prefetch_tune): Likewise.
1408         (qdf24xx_prefetch_tune) <minimum_stride>: Set to 2048.
1409         <default_opt_level>: Set to 3.
1410         (aarch64_override_options_internal): Update to set
1411         PARAM_PREFETCH_MINIMUM_STRIDE.
1412         * doc/invoke.texi (prefetch-minimum-stride): Document new option.
1413         * params.def (PARAM_PREFETCH_MINIMUM_STRIDE): New.
1414         * params.h (PARAM_PREFETCH_MINIMUM_STRIDE): Define.
1415         * tree-ssa-loop-prefetch.c (should_issue_prefetch_p): Return false if
1416         stride is constant and is below the minimum stride threshold.
1417
1418 2018-05-23  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1419
1420         * config/arm/arm-cpus.in (mode26): Delete.
1421         (armv4): Delete mode26 reference.
1422         * config/arm/arm.c (arm_configure_build_target): Delete use of
1423         isa_bit_mode26.
1424
1425 2018-05-23  Uros Bizjak  <ubizjak@gmail.com>
1426
1427         * config/i386/i386.md (*floatuns<SWI48:mode><MODEF:mode>2_avx512):
1428         New insn pattern.
1429         (floatunssi<mode>2): Also enable for AVX512F and TARGET_SSE_MATH.
1430         Rewrite expander pattern.  Emit gen_floatunssi<mode>2_i387_with_xmm
1431         for non-SSE modes.
1432         (floatunsdisf2): Rewrite expander pattern.  Hanlde TARGET_AVX512F.
1433         (floatunsdidf2): Ditto.
1434
1435 2018-05-23  Uros Bizjak  <ubizjak@gmail.com>
1436
1437         * config/i386/i386.md (fixuns_trunc<mode>di2): New insn pattern.
1438         (fixuns_trunc<mode>si2_avx512f): Ditto.
1439         (*fixuns_trunc<mode>si2_avx512f_zext): Ditto.
1440         (fixuns_trunc<mode>si2): Also enable for AVX512F and TARGET_SSE_MATH.
1441         Emit fixuns_trunc<mode>si2_avx512f for AVX512F targets.
1442
1443 2018-05-23  Alexander Monakov  <amonakov@ispras.ru>
1444
1445         PR rtl-optimization/79985
1446         * df-scan.c (df_insn_refs_collect): Remove special case for
1447         global registers and asm statements.
1448
1449 2018-05-23  Alexander Monakov  <amonakov@ispras.ru>
1450
1451         * extend.texi (Global Register Variables): Rewrite the bullet list.
1452         Note that the register is available for allocation. Note that access
1453         via inline asm must use constraints. Add note about async-signal
1454         handlers. Remove paragraph about automagic register selection.
1455
1456 2018-05-23  Richard Biener  <rguenther@suse.de>
1457
1458         * tree-ssa-sccvn.c (vn_reference_lookup_3): Remove restriction
1459         of fixed offset from memset VN.
1460
1461 2018-05-23  Bill Schmidt  <wschmidt@linux.ibm.com>
1462
1463         * gimple-ssa-strength-reduction.c (struct slsr_cand_d): Add
1464         first_interp field.
1465         (alloc_cand_and_find_basis): Initialize first_interp field.
1466         (slsr_process_mul): Modify first_interp field.
1467         (slsr_process_add): Likewise.
1468         (slsr_process_cast): Modify first_interp field for each new
1469         interpretation.
1470         (slsr_process_copy): Likewise.
1471         (dump_candidate): Dump first_interp field.
1472         (replace_mult_candidate): Process all interpretations, not just
1473         subsequent ones.
1474         (replace_rhs_if_not_dup): Likewise.
1475         (replace_one_candidate): Likewise.
1476
1477 2018-05-23  Wilco Dijkstra  <wdijkstr@arm.com>
1478
1479         * config/aarch64/aarch64.c (aarch64_use_frame_pointer):
1480         Add new boolean.
1481         (aarch64_needs_frame_chain): New function.
1482         (aarch64_parse_override_string): Set aarch64_use_frame_pointer.
1483
1484 2018-05-23  Sudakshina Das  <sudi.das@arm.com>
1485
1486         PR target/84882
1487         * common/config/aarch64/aarch64-common.c (aarch64_handle_option):
1488         Check val before adding MASK_STRICT_ALIGN to opts->x_target_flags.
1489         * config/aarch64/aarch64.opt (mstrict-align): Remove RejectNegative.
1490         * config/aarch64/aarch64.c (aarch64_attributes): Mark allow_neg
1491         as true for strict-align.
1492         (aarch64_can_inline_p): Perform checks even when callee has no
1493         attributes to check for strict alignment.
1494         * doc/extend.texi (AArch64 Function Attributes): Document
1495         no-strict-align.
1496         * doc/invoke.texi: (AArch64 Options): Likewise.
1497
1498 2018-05-23  Richard Sandiford  <richard.sandiford@linaro.org>
1499
1500         PR tree-optimization/85853
1501         * tree-vect-slp.c (vect_slp_analyze_node_operations): Split out
1502         the handling of the root of the node to...
1503         (vect_slp_analyze_node_operations_1): ...this new function,
1504         and run the whole thing with the child nodes' def types
1505         set according to their SLP node's def type.
1506
1507 2018-05-23  Richard Biener  <rguenther@suse.de>
1508
1509         PR middle-end/85874
1510         * tree-data-ref.c (create_runtime_alias_checks): Defer
1511         and ignore overflow warnings.
1512
1513 2018-05-23  Yury Gribov  <tetra2005@gmail.com>
1514
1515         PR tree-optimization/85822
1516         * tree-vrp.c (is_masked_range_test): Fix handling of negative
1517         constants.
1518
1519 2018-05-23  Richard Biener  <rguenther@suse.de>
1520
1521         * tree-ssa-sccvn.c (vn_reference_lookup_3): Handle arbitrary
1522         memset constants via native_interpret_expr.
1523
1524 2018-05-22  H.J. Lu  <hongjiu.lu@intel.com>
1525
1526         PR target/85345
1527         * cgraph.h (cgraph_node::create): Set ifunc_resolver for ifunc
1528         attribute.
1529         (cgraph_node::create_alias): Likewise.
1530         (cgraph_node::get_availability): Check ifunc_resolver instead
1531         of looking up ifunc attribute.
1532         * cgraphunit.c (maybe_diag_incompatible_alias): Likewise.
1533         * varasm.c (do_assemble_alias): Likewise.
1534         (assemble_alias): Likewise.
1535         (default_binds_local_p_3): Likewise.
1536         * cgraph.h (cgraph_node): Add ifunc_resolver.
1537         (cgraph_node::only_called_directly_or_aliased_p): Return false
1538         for IFUNC resolver.
1539         * lto-cgraph.c (input_node): Set ifunc_resolver for ifunc
1540         attribute.
1541         * symtab.c (symtab_node::verify_base): Verify that ifunc_resolver
1542         is equivalent to lookup_attribute ("ifunc", DECL_ATTRIBUTES (decl)).
1543         (symtab_node::binds_to_current_def_p): Check ifunc_resolver
1544         instead of looking up ifunc attribute.
1545
1546 2018-05-22  Luis Machado  <luis.machado@linaro.org>
1547
1548         * config/aarch64/aarch64.md (*ashift<mode>_extv_bfiz): New pattern.
1549
1550 2018-05-22  Martin Sebor  <msebor@redhat.com>
1551
1552         PR middle-end/85359
1553         * builtins.c (expand_builtin_strcpy): Call maybe_warn_nonstring_arg
1554         only when expasion succeeds.
1555         (expand_builtin_strcmp): Same.
1556         (expand_builtin_strncmp): Same.
1557
1558 2018-05-22  Martin Sebor  <msebor@redhat.com>
1559
1560         * calls.c (maybe_warn_nonstring_arg): Fix a typo in a comment.
1561
1562 2018-05-22  Jackson Woodruff  <jackson.woodruff@arm.com>
1563             Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1564
1565         * config/aarch64/aarch64-ldpstp.md: Replace uses of
1566         aarch64_mem_pair_operand with memory_operand and delete operand swapping
1567         code.
1568         * config/aarch64/aarch64.c (aarch64_operands_ok_for_ldpstp):
1569         Add check for legitimate_address.
1570         (aarch64_gen_adjusted_ldpstp): Swap operands where appropriate.
1571         (aarch64_swap_ldrstr_operands): New.
1572         * config/aarch64/aarch64-protos.h (aarch64_swap_ldrstr_operands):
1573         Define prototype.
1574
1575 2018-05-22  Jackson Woodruff  <jackson.woodruff@arm.com>
1576             Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1577
1578         * config/aarch64/aarch64.md: New patterns to generate stp
1579         and ldp.
1580         (store_pair_sw, store_pair_dw): New patterns to generate stp for
1581         single words and double words.
1582         (load_pair_sw, load_pair_dw): Likewise.
1583         (store_pair_sf, store_pair_df, store_pair_si, store_pair_di):
1584         Delete.
1585         (load_pair_sf, load_pair_df, load_pair_si, load_pair_di):
1586         Delete.
1587         * config/aarch64/aarch64-ldpstp.md: Modify peephole
1588         for different mode ldpstp and add peephole for merged zero stores.
1589         Likewise for loads.
1590         * config/aarch64/aarch64.c (aarch64_operands_ok_for_ldpstp):
1591         Add size check.
1592         (aarch64_gen_store_pair): Rename calls to match new patterns.
1593         (aarch64_gen_load_pair): Rename calls to match new patterns.
1594         * config/aarch64/aarch64-simd.md (load_pair<mode>): Rename to...
1595         (load_pair<DREG:mode><DREG2:mode>): ... This.
1596         (store_pair<mode>): Rename to...
1597         (vec_store_pair<DREG:mode><DREG2:mode>): ... This.
1598         * config/aarch64/iterators.md (DREG, DREG2, DX2, SX, SX2, DSX):
1599         New mode iterators.
1600         (V_INT_EQUIV): Handle SImode.
1601         * config/aarch64/predicates.md (aarch64_reg_zero_or_fp_zero):
1602         New predicate.
1603
1604 2018-05-22  Martin Sebor  <msebor@redhat.com>
1605
1606         PR c/85623
1607         * calls.c (maybe_warn_nonstring_arg): Use string length to set
1608         or ajust the presumed bound on an operation to avoid unnecessary
1609         warnings.
1610
1611 2018-05-22  Martin Sebor  <msebor@redhat.com>
1612
1613         PR tree-optimization/85826
1614         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Avoid
1615         assuming that a DECL necesarily has a constant size.
1616
1617 2018-05-22  Richard Sandiford  <richard.sandiford@linaro.org>
1618
1619         PR middle-end/85862
1620         * internal-fn.c (expand_direct_optab_fn): Cope with a null lhs.
1621
1622 2018-05-22  Richard Biener  <rguenther@suse.de>
1623
1624         PR tree-optimization/85834
1625         * tree-ssa-sccvn.c (vn_reference_lookup_3): Properly handle
1626         non-constant and non-zero memset arguments.
1627
1628 2018-05-22  Martin Liska  <mliska@suse.cz>
1629
1630         PR ipa/85607
1631         * ipa-icf.c (sem_item::add_type): Do not ICE for incomplete types.
1632
1633 2018-05-22  Richard Biener  <rguenther@suse.de>
1634
1635         PR tree-optimization/85863
1636         * tree-vect-stmts.c (vect_is_simple_cond): Only widen invariant
1637         comparisons when vectype is specified.
1638         (vectorizable_condition): Do not specify vectype for
1639         vect_is_simple_cond when SLP vectorizing.
1640
1641 2018-05-21  Michael Meissner  <meissner@linux.ibm.com>
1642
1643         PR target/85657
1644         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Do not
1645         define __ibm128 as long double.
1646         * config/rs6000/rs6000.c (rs6000_init_builtins): Create __ibm128
1647         as a distinct type when IEEE 128-bit support is enabled.
1648         (init_float128_ieee): Fix up conversions between IFmode and IEEE
1649         128-bit types to use the correct functions.
1650         (rs6000_expand_float128_convert): Use explicit FLOAT_EXTEND to
1651         convert between 128-bit floating point types that have different
1652         modes but the same representation, instead of using gen_lowpart to
1653         makean alias.
1654         * config/rs6000/rs6000.md (IFKF): New iterator for IFmode and
1655         KFmode.
1656         (IFKF_reg): New attributes to give the register constraints for
1657         IFmode and KFmode.
1658         (extend<mode>tf2_internal): New insns to mark an explicit
1659         conversion between 128-bit floating point types that have a
1660         different mode but share the same representation.
1661
1662 2018-05-21  Richard Sandiford  <richard.sandiford@linaro.org>
1663
1664         PR tree-optimization/85814
1665         * tree-ssa-strlen.c (get_stridx_plus_constant): Cope with
1666         a null return from get_strinfo when unsharing the next
1667         strinfo in the chain.
1668
1669 2018-05-21  Vladimir Mezentsev  <vladimir.mezentsev@oracle.com>
1670
1671         PR gcc/84923
1672         * varasm.c (weak_finish): Clean up weak_decls.
1673
1674 2018-05-21  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1675
1676         * config/aarch64/aarch64.md ("unspec"): Define UNSPEC_SABAL,
1677         UNSPEC_SABDL2, UNSPEC_SADALP, UNSPEC_UABAL, UNSPEC_UABDL2,
1678         UNSPEC_UADALP values.
1679         * config/aarch64/iterators.md (ABAL): New int iterator.
1680         (ABDL2): Likewise.
1681         (ADALP): Likewise.
1682         (sur): Add mappings for the above.
1683         * config/aarch64/aarch64-simd.md (aarch64_<sur>abdl2<mode>_3):
1684         New define_insn.
1685         (aarch64_<sur>abal<mode>_4): Likewise.
1686         (aarch64_<sur>adalp<mode>_3): Likewise.
1687         (<sur>sadv16qi): New define_expand.
1688
1689 2018-05-21  Alexander Nesterovskiy  <alexander.nesterovskiy@intel.com>
1690
1691         * config/i386/i386.md (*movsf_internal): AVX falsedep fix.
1692         (*movdf_internal): Ditto.
1693         (*rcpsf2_sse): Ditto.
1694         (*rsqrtsf2_sse): Ditto.
1695         (*sqrt<mode>2_sse): Ditto.
1696
1697 2018-05-21  Tamar Christina  <tamar.christina@arm.com>
1698
1699         * config/aarch64/aarch64-simd.md (aarch64_eor3qv8hi): Change to
1700         eor3q<mode>4.
1701         (aarch64_bcaxqv8hi): Change to bcaxq<mode>4.
1702         * config/aarch64/aarch64-simd-builtins.def (veor3q_u8, veor3q_u32,
1703         veor3q_u64, veor3q_s8, veor3q_s16, veor3q_s32, veor3q_s64, vbcaxq_u8,
1704         vbcaxq_u32, vbcaxq_u64, vbcaxq_s8, vbcaxq_s16, vbcaxq_s32,
1705         vbcaxq_s64): New.
1706         * config/aarch64/arm_neon.h: Likewise.
1707         * config/aarch64/iterators.md (VQ_I): New.
1708
1709 2018-05-21  Alexey Brodkin <abrodkin@synopsys.com>
1710
1711         * config.gcc: Add arc/t-multilib-linux to tmake_file for
1712         arc*-*-linux*.
1713         * config/arc/t-multilib-linux: Specify MULTILIB_OPTIONS and
1714         MULTILIB_DIRNAMES
1715
1716 2018-05-20  Chung-Ju Wu  <jasonwucj@gmail.com>
1717
1718         * config/nds32/constraints.md (S): New constraint.
1719         * config/nds32/nds32.md (call_internal): Use constraint S.
1720         (call_value_internal): Likewise.
1721         (sibcall_internal): Likewise.
1722         (sibcall_value_internal): Likewise.
1723
1724 2018-05-20  Kito Cheng  <kito.cheng@gmail.com>
1725             Chung-Ju Wu  <jasonwucj@gmail.com>
1726
1727         * config/nds32/nds32.c (nds32_register_move_cost): Take garywolf cpu
1728         into consideration.
1729
1730 2018-05-20  Kito Cheng  <kito.cheng@gmail.com>
1731             Chung-Ju Wu  <jasonwucj@gmail.com>
1732
1733         * config/nds32/nds32-cost.c (rtx_cost_model_t): New structure.
1734         (insn_size_16bit, insn_size_32bit): New variables for cost evaluation.
1735         (nds32_rtx_costs_impl): Simplify.
1736         (nds32_address_cost_impl): Simplify.
1737         (nds32_init_rtx_costs): New function.
1738         (nds32_rtx_costs_speed_prefer): Likewise.
1739         (nds32_rtx_costs_size_prefer): Likewise.
1740         (nds32_address_cost_speed_prefer): Likewise.
1741         (nds32_address_cost_speed_fwprop): Likewise.
1742         (nds32_address_cost_size_prefer): Likewise.
1743         * config/nds32/nds32-protos.h (nds32_init_rtx_costs): Declare.
1744         * config/nds32/nds32.c (nds32_option_override): Use
1745         nds32_init_rtx_costs function.
1746
1747 2018-05-20  Chung-Ju Wu  <jasonwucj@gmail.com>
1748
1749         * config/nds32/nds32.c (nds32_asm_file_start): Output pipeline model.
1750         * config/nds32/nds32.h (TARGET_PIPELINE_N7): Define.
1751         (TARGET_PIPELINE_N8): Likewise.
1752         (TARGET_PIPELINE_N10): Likewise.
1753         (TARGET_PIPELINE_N13): Likewise.
1754         (TARGET_PIPELINE_GRAYWOLF): Likewise.
1755
1756 2018-05-19  Monk Chiang  <sh.chiang04@gmail.com>
1757
1758         * config/nds32/nds32-fpu.md: Update copyright year.
1759
1760 2018-05-19  Chung-Ju Wu  <jasonwucj@gmail.com>
1761
1762         * config/nds32/nds32.h (ASM_SPEC): Adjust spec rule.
1763
1764 2018-05-19  Chung-Ju Wu  <jasonwucj@gmail.com>
1765
1766         * config/nds32/nds32.c
1767         (nds32_md_asm_adjust): Consider flag_inline_asm_r15 variable.
1768         * config/nds32/nds32.opt (minline-asm-r15): New option.
1769
1770 2018-05-19  Chung-Ju Wu  <jasonwucj@gmail.com>
1771
1772         * common/config/nds32/nds32-common.c (TARGET_DEFAULT_TARGET_FLAGS): Add
1773         MASK_HW_ABS.
1774         * config/nds32/nds32.md (abssi2): New pattern.
1775
1776 2018-05-19  Uros Bizjak  <ubizjak@gmail.com>
1777
1778         * config/i386/i386.md (rex64namesuffix): New mode attribute.
1779         * config/i386/sse.md (sse_cvtsi2ss<rex64namesuffix><round_name>):
1780         Merge insn pattern from sse_cvtsi2ss<round_name> and
1781         sse_cvtsi2ssq<round_name> using SWI48 mode iterator.
1782         (sse_cvtss2si<rex64namesuffix><round_name>): Merge insn pattern
1783         from sse_cvtss2si<round_name> and sse_cvtss2siq<round_name>
1784         using SWI48 mode iterator.
1785         (sse_cvtss2si<rex64namesuffix>_2): Merge insn pattern from
1786         sse_cvtss2si_2 and sse_cvtss2siq_2 using SWI48 mode iterator.
1787         (sse_cvttss2si<rex64namesuffix><round_saeonly_name>): Merge insn
1788         pattern from sse_cvttss2si<round_saeonly_name>
1789         and sse_cvttss2siq<round_saeonly_name> using SWI48 mode iterator.
1790         (avx512f_vcvtss2usi<rex64namesuffix><round_name>): Merge insn pattern
1791         from avx512f_vcvtss2usi<round_name> and avx512f_vcvtss2usiq<round_name>
1792         using SWI48 mode iterator.
1793         (avx512f_vcvttss2usi<rex64namesuffix><round_saeonly_name>): Merge
1794         insn pattern from avx512f_vcvttss2usi<round_saeonly_name> and
1795         avx512f_vcvttss2usiq<round_saeonly_name> using SWI48 mode iterator.
1796         (avx512f_vcvtsd2usi<rex64namesuffix><round_name>): Merge insn pattern
1797         from avx512f_vcvtsd2usi<round_name> and avx512f_vcvtsd2usiq<round_name>
1798         using SWI48 mode iterator.
1799         (avx512f_vcvttsd2usi<rex64namesuffix><round_saeonly_name>): Merge
1800         insn pattern from avx512f_vcvttsd2usi<round_saeonly_name> and
1801         avx512f_vcvttsd2usiq<round_saeonly_name> using SWI48 mode iterator.
1802         (sse2_cvtsd2si<rex64namesuffix><round_name>): Merge insn pattern from
1803         sse2_cvtsd2si<round_name> and sse2_cvtsd2siq<round_name> using
1804         SWI48 mode iterator.
1805         (sse2_cvtsd2si<rex64namesuffix>_2): Merge insn pattern from
1806         sse2_cvtsd2si_2 and sse2_cvtsd2siq_2 using SWI48 mode iterator.
1807         (sse_cvttsd2si<rex64namesuffix><round_saeonly_name>): Merge insn
1808         pattern from sse_cvttsd2si<round_saeonly_name>
1809         and sse_cvttsd2siq<round_saeonly_name> using SWI48 mode iterator.
1810
1811 2018-05-19  Chung-Ju Wu  <jasonwucj@gmail.com>
1812
1813         * config/nds32/nds32-md-auxiliary.c
1814         (nds32_valid_smw_lwm_base_p): Refine.
1815         (nds32_output_smw_single_word): Refine.
1816         (nds32_output_smw_double_word): New.
1817         * config/nds32/nds32-protos.h (nds32_output_smw_double_word): New.
1818
1819 2018-05-19  Chung-Ju Wu  <jasonwucj@gmail.com>
1820
1821         * config/nds32/nds32-md-auxiliary.c (nds32_output_stack_push): Refine.
1822         (nds32_output_stack_pop): Refine.
1823         (nds32_expand_unaligned_load): Refine.
1824         (nds32_expand_unaligned_store): Refine.
1825
1826 2018-05-19  Kuan-Lin Chen <kuanlinchentw@gmail.com>
1827             Chung-Ju Wu  <jasonwucj@gmail.com>
1828
1829         * config/nds32/constants.md: Add TP_REGNUM constant.
1830         (unspec_element): Add UNSPEC_GOTINIT, UNSPEC_GOT, UNSPEC_GOTOFF,
1831         UNSPEC_PLT, UNSPEC_TLSGD, UNSPEC_TLSLD, UNSPEC_TLSIE, UNSPEC_TLSLE and
1832         UNSPEC_ADD32.
1833         * config/nds32/nds32-doubleword.md: Consider flag_pic.
1834         * config/nds32/nds32-dspext.md (mov<mode>): Expand TLS and PIC cases.
1835         * config/nds32/nds32-predicates.c (nds32_const_unspec_p): New.
1836         * config/nds32/nds32-md-auxiliary.c: Implementation that support TLS
1837         and PIC code generation.
1838         * config/nds32/nds32-protos.h: Declarations that support TLS and PIC
1839         code generation.
1840         * config/nds32/nds32-relax-opt.c: Consider TLS and PIC for relax
1841         optimization.
1842         * config/nds32/nds32.md: Support TLS and PIC.
1843         * config/nds32/nds32.c: Support TLS and PIC.
1844         * config/nds32/nds32.h (nds32_relax_insn_type): New enum type.
1845         * config/nds32/predicates.md (nds32_nonunspec_symbolic_operand): New
1846         predicate.
1847
1848 2018-05-19  Chung-Ju Wu  <jasonwucj@gmail.com>
1849
1850         * config/nds32/nds32-predicates.c (const_vector_to_hwint): Use machine
1851         mode with E_ prefix.
1852
1853 2018-05-19  Kuan-Lin Chen <kuanlinchentw@gmail.com>
1854             Chung-Ju Wu  <jasonwucj@gmail.com>
1855
1856         * config/nds32/constants.md (unspec_element): Add UNSPEC_ICT.
1857         * config/nds32/nds32-md-auxiliary.c
1858         (symbolic_reference_mentioned_p): New.
1859         (nds32_legitimize_ict_address): New.
1860         (nds32_expand_ict_move): New.
1861         (nds32_indirect_call_referenced_p): New.
1862         (nds32_symbol_binds_local_p): Delete.
1863         (nds32_long_call_p): Modify.
1864         * config/nds32/nds32-opts.h (nds32_ict_model_type): New enum type.
1865         * config/nds32/nds32-protos.h
1866         (symbolic_reference_mentioned_p): Declare.
1867         (nds32_legitimize_ict_address): Declare.
1868         (nds32_expand_ict_move): Declare.
1869         (nds32_indirect_call_referenced_p): Declare.
1870         * config/nds32/nds32-relax-opt.c (nds32_ict_const_p): New.
1871         (nds32_relax_group): Use nds32_ict_const_p as condition.
1872         * config/nds32/nds32.c (nds32_attribute_table): Add "indirect_call".
1873         (nds32_asm_file_start): Output ict_model directive in asm code.
1874         (nds32_legitimate_address_p): Consider indirect call.
1875         (nds32_print_operand): Consider indirect call.
1876         (nds32_print_operand_address): Consider indirect call.
1877         (nds32_insert_attributes): Handle "indirect_call" attribute.
1878         (TARGET_LEGITIMATE_ADDRESS_P): Define.
1879         (TARGET_LEGITIMATE_CONSTANT_P): Define.
1880         (TARGET_CANNOT_FORCE_CONST_MEM): Define.
1881         (TARGET_DELEGITIMIZE_ADDRESS): Define.
1882         (TARGET_ASM_OUTPUT_ADDR_CONST_EXTRA): Define.
1883         * config/nds32/nds32.h (SYMBOLIC_CONST_P): Define.
1884         (TARGET_ICT_MODEL_SMALL): Define.
1885         (TARGET_ICT_MODEL_LARGE): Define.
1886         * config/nds32/nds32.md (movsi): Consider ict model.
1887         (call, call_value): Consider ict model.
1888         (sibcall, sibcall_value): Consider ict model.
1889         * config/nds32/nds32.opt (mict-model): New option.
1890         * config/nds32/predicates.md (nds32_symbolic_operand): Consider ict
1891         model.
1892
1893 2018-05-18  Kito Cheng  <kito.cheng@gmail.com>
1894             Monk Chiang  <sh.chiang04@gmail.com>
1895             Jim Wilson <jimw@sifive.com>
1896
1897         * common/config/riscv/riscv-common.c (riscv_parse_arch_string):
1898         Add support to parse rv32e*.  Clear MASK_RVE for rv32i and rv64i.
1899         * config.gcc (riscv*-*-*): Add support for rv32e* and ilp32e.
1900         * config/riscv/riscv-c.c (riscv_cpu_cpp_builtins): Define
1901         __riscv_32e when TARGET_RVE.  Handle ABI_ILP32E as soft-float ABI.
1902         * config/riscv/riscv-opts.h (riscv_abi_type): Add ABI_ILP32E.
1903         * config/riscv/riscv.c (riscv_compute_frame_info): When TARGET_RVE,
1904         compute save_libcall_adjustment properly.
1905         (riscv_option_override): Call error if TARGET_RVE and not ABI_ILP32E.
1906         (riscv_conditional_register_usage): Handle TARGET_RVE and ABI_ILP32E.
1907         * config/riscv/riscv.h (UNITS_PER_FP_ARG): Handle ABI_ILP32E.
1908         (STACK_BOUNDARY, ABI_STACK_BOUNDARY): Handle TARGET_RVE.
1909         (GP_REG_LAST, MAX_ARGS_IN_REGISTERS): Likewise.
1910         (ABI_SPEC): Handle mabi=ilp32e.
1911         * config/riscv/riscv.opt (abi_type): Add ABI_ILP32E.
1912         (RVE): Add RVE mask.
1913         * doc/invoke.texi (RISC-V options) <-mabi>: Add ilp32e info.
1914         <-march>: Add rv32e as an example.
1915
1916 2018-05-18  Marc Glisse  <marc.glisse@inria.fr>
1917
1918         PR c++/82899
1919         * tree-ssa-structalias.c (create_variable_info_for_1): Extra argument.
1920         (intra_create_variable_infos): Handle C++ constructors.
1921
1922 2018-05-18  Martin Liska  <mliska@suse.cz>
1923
1924         * passes.def: Remove a redundant pass.
1925
1926 2018-05-18  Eric Botcazou  <ebotcazou@adacore.com>
1927
1928         PR bootstrap/85838
1929         * config/sparc/sparc.c (sparc_expand_builtin): Always initialize op[0].
1930
1931 2018-05-18  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1932
1933         * config/arm/arm-cpus.in (armv3m, mode32): Delete features.
1934         (ARMv4): Update.
1935         (ARMv2, ARMv3, ARMv3m): Delete fgroups.
1936         (ARMv6m): Update.
1937         (armv2, armv2a, armv3, armv3m): Delete architectures.
1938         (arm2, arm250, arm3, arm6, arm60, arm600, arm610, arm620,
1939         arm7, arm7d, arm7di, arm70, arm700, arm700i, arm710, arm720,
1940         arm710c, arm7100, arm7500, arm7500fe, arm7m, arm7dm, arm7dmi):
1941         Delete cpus.
1942         * config/arm/arm.md (maddsidi4): Remove check for arm_arch3m.
1943         (*mulsidi3adddi): Likewise.
1944         (mulsidi3): Likewise.
1945         (*mulsidi3_nov6): Likewise.
1946         (umulsidi3): Likewise.
1947         (umulsidi3_nov6): Likewise.
1948         (umaddsidi4): Likewise.
1949         (*umulsidi3adddi): Likewise.
1950         (smulsi3_highpart): Likewise.
1951         (*smulsi3_highpart_nov6): Likewise.
1952         (umulsi3_highpart): Likewise.
1953         (*umulsi3_highpart_nov6): Likewise.
1954         * config/arm/arm.h (arm_arch3m): Delete.
1955         * config/arm/arm.c (arm_arch3m): Delete.
1956         (arm_option_override_internal): Update armv3-related comment.
1957         (arm_configure_build_target): Delete use of isa_bit_mode32.
1958         (arm_option_reconfigure_globals): Delete set of arm_ach3m.
1959         (arm_rtx_costs_internal): Delete check of arm_arch3m.
1960         * config/arm/arm-fixed.md (mulsq3): Delete check for arm_arch3m.
1961         (mulsa3): Likewise.
1962         (mulusa3): Likewise.
1963         * config/arm/arm-protos.h (arm_arch3m): Delete.
1964         * config/arm/arm-tables.opt: Regenerate.
1965         * config/arm/arm-tune.md: Likewise.
1966         * config/arm/t-arm-elf (all_early_nofp): Delete mentions of
1967         deleted architectures.
1968
1969 2018-05-18  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1970
1971         * config/arm/arm-cpus.in (armv5, armv5e): Delete features.
1972         (armv5t, armv5te): New features.
1973         (ARMv5, ARMv5e): Delete fgroups.
1974         (ARMv5t, ARMv5te): Adjust for above changes.
1975         (ARMv6m): Likewise.
1976         (armv5, armv5e): Delete arches.
1977         * config/arm/arm.md (*call_reg_armv5): Use arm_arch5t instead of
1978         arm_arch5.
1979         (*call_reg_arm): Likewise.
1980         (*call_value_reg_armv5): Likewise.
1981         (*call_value_reg_arm): Likewise.
1982         (*call_symbol): Likewise.
1983         (*call_value_symbol): Likewise.
1984         (*sibcall_insn): Likewise.
1985         (*sibcall_value_insn): Likewise.
1986         (clzsi2): Likewise.
1987         (prefetch): Likewise.
1988         (define_split and define_peephole2 dependent on arm_arch5):
1989         Likewise.
1990         * config/arm/arm.h (TARGET_LDRD): Use arm_arch5te instead of
1991         arm_arch5e.
1992         (TARGET_ARM_QBIT): Likewise.
1993         (TARGET_DSP_MULTIPLY): Likewise.
1994         (enum base_architecture): Delete BASE_ARCH_5, BASE_ARCH_5E.
1995         (arm_arch5, arm_arch5e): Delete.
1996         (arm_arch5t, arm_arch5te): Declare.
1997         * config/arm/arm.c (arm_arch5, arm_arch5e): Delete.
1998         (arm_arch5t): Declare.
1999         (arm_option_reconfigure_globals): Update for the above.
2000         (arm_options_perform_arch_sanity_checks): Update comment, replace
2001         use of arm_arch5 with arm_arch5t.
2002         (use_return_insn): Likewise.
2003         (arm_emit_call_insn): Likewise.
2004         (output_return_instruction): Likewise.
2005         (arm_final_prescan_insn): Likewise.
2006         (arm_coproc_builtin_available): Likewise.
2007         * config/arm/arm-c.c (arm_cpu_builtins): Replace arm_arch5 and
2008         arm_arch5e with arm_arch5t and arm_arch5te.
2009         * config/arm/arm-protos.h (arm_arch5, arm_arch5e): Delete.
2010         (arm_arch5t, arm_arch5te): Declare.
2011         * config/arm/arm-tables.opt: Regenerate.
2012         * config/arm/t-arm-elf: Remove references to armv5, armv5e.
2013         * config/arm/t-multilib: Likewise.
2014         * config/arm/thumb1.md (*call_reg_thumb1_v5): Check arm_arch5t
2015         instead of arm_arch5.
2016         (*call_reg_thumb1): Likewise.
2017         (*call_value_reg_thumb1_v5): Likewise.
2018         (*call_value_reg_thumb1): Likewise.
2019         * config/arm/vxworks.h (TARGET_OS_CPP_BUILTINS): Remove now
2020         unreachable path.
2021         * doc/invoke.texi (ARM Options): Remove references to armv5, armv5e.
2022
2023 2018-05-18  Martin Liska  <mliska@suse.cz>
2024
2025         PR gcov-profile/84846
2026         * doc/gcov.texi: Document -t option of gcov tool.
2027
2028 2018-05-18  Martin Liska  <mliska@suse.cz>
2029
2030         PR gcov-profile/84846
2031         * gcov.c (print_usage): Add new -t option.
2032         (process_args): Handle the option.
2033         (generate_results): Use stdout as output when requested by
2034         the option.
2035
2036 2018-05-18  Martin Liska  <mliska@suse.cz>
2037
2038         PR gcov-profile/84846
2039         * coverage.c (coverage_init): Write PWD to .gcno file.
2040         * doc/gcov.texi: Document how working directory is printed.
2041         * gcov-dump.c (dump_gcov_file): Print PWD.
2042         * gcov.c (output_intermediate_file): Likewise.
2043         (read_graph_file): Read PWD string.
2044         (output_lines): Print PWD.
2045
2046 2018-05-18  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
2047
2048         PR middle-end/85817
2049         * ipa-pure-const.c (malloc_candidate_p): Remove the check integer_zerop
2050         for retval and return false if all args to phi are zero.
2051
2052 2018-05-18  Richard Biener  <rguenther@suse.de>
2053
2054         * gimple-ssa-evrp.c (class evrp_folder): Add simplify_stmt_using_ranges
2055         method.
2056         (evrp_dom_walker::before_dom_children): Call it.
2057
2058 2018-05-18  Richard Biener  <rguenther@suse.de>
2059
2060         * tree-dfa.c (get_ref_base_and_extent): Use range-info to refine
2061         results when processing array refs with variable index.
2062
2063 2018-05-18  Toon Moene  <toon@moene.org>
2064
2065         * doc/invoke.texi: Move -floop-unroll-and-jam documentation
2066         directly after that of -floop-interchange. Indicate that both
2067         options are enabled by default when specifying -O3.
2068
2069 2018-05-18  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
2070
2071         * config/aarch64/aarch64-simd.md (vec_set<mode>): Use VALL_F16 mode
2072         iterator.  Delete separate integer-mode vec_set<mode> expander.
2073         (aarch64_simd_vec_setv2di): Delete.
2074         (vec_setv2di): Delete.
2075         (aarch64_simd_vec_set<mode>): Delete all other patterns with that name.
2076         Use VALL_F16 mode iterator.  Add LD1 alternative and use vwcore for
2077         the "w, r" alternative.
2078
2079 2018-05-18  Martin Liska  <mliska@suse.cz>
2080
2081         * passes.def: Add pass_lower_switch and pass_lower_switch_O0.
2082         * tree-pass.h (make_pass_lower_switch_O0): New function.
2083         * tree-switch-conversion.c (node_has_low_bound): Remove.
2084         (node_has_high_bound): Likewise.
2085         (node_is_bounded): Likewise.
2086         (class pass_lower_switch): Make it a template type and create
2087         two instances.
2088         (pass_lower_switch::execute): Add template argument.
2089         (make_pass_lower_switch): New function.
2090         (make_pass_lower_switch_O0): New function.
2091         (do_jump_if_equal): Remove.
2092         (emit_case_nodes): Simplify to just handle all 3 cases and leave
2093         all the hard work to tree optimization passes.
2094
2095 2018-05-18  Martin Liska  <mliska@suse.cz>
2096
2097         * dbgcnt.c (limit_low): Renamed from limit.
2098         (limit_high): New variable.
2099         (dbg_cnt_is_enabled): Check for upper limit.
2100         (dbg_cnt): Adjust dumping.
2101         (dbg_cnt_set_limit_by_index): Add new argument for high
2102         value.
2103         (dbg_cnt_set_limit_by_name): Likewise.
2104         (dbg_cnt_process_single_pair): Parse new format.
2105         (dbg_cnt_process_opt): Use strtok.
2106         (dbg_cnt_list_all_counters): Remove 'value' and add
2107         'limit_high'.
2108         * doc/invoke.texi: Document changes.
2109
2110 2018-05-18  Richard Sandiford  <richard.sandiford@linaro.org>
2111
2112         * doc/sourcebuild.texi (scalar_all_fma): Document.
2113         * tree.def (FMA_EXPR): Delete.
2114         * internal-fn.def (FMA, FMS, FNMA, FNMS): New internal functions.
2115         * internal-fn.c (ternary_direct): New macro.
2116         (expand_ternary_optab_fn): Likewise.
2117         (direct_ternary_optab_supported_p): Likewise.
2118         * Makefile.in (build/genmatch.o): Depend on case-fn-macros.h.
2119         * builtins.c (fold_builtin_fma): Delete.
2120         (fold_builtin_3): Don't call it.
2121         * cfgexpand.c (expand_debug_expr): Remove FMA_EXPR handling.
2122         * expr.c (expand_expr_real_2): Likewise.
2123         * fold-const.c (operand_equal_p): Likewise.
2124         (fold_ternary_loc): Likewise.
2125         * gimple-pretty-print.c (dump_ternary_rhs): Likewise.
2126         * gimple.c (DEFTREECODE): Likewise.
2127         * gimplify.c (gimplify_expr): Likewise.
2128         * optabs-tree.c (optab_for_tree_code): Likewise.
2129         * tree-cfg.c (verify_gimple_assign_ternary): Likewise.
2130         * tree-eh.c (operation_could_trap_p): Likewise.
2131         (stmt_could_throw_1_p): Likewise.
2132         * tree-inline.c (estimate_operator_cost): Likewise.
2133         * tree-pretty-print.c (dump_generic_node): Likewise.
2134         (op_code_prio): Likewise.
2135         * tree-ssa-loop-im.c (stmt_cost): Likewise.
2136         * tree-ssa-operands.c (get_expr_operands): Likewise.
2137         * tree.c (commutative_ternary_tree_code, add_expr): Likewise.
2138         * fold-const-call.h (fold_fma): Delete.
2139         * fold-const-call.c (fold_const_call_ssss): Handle CFN_FMS,
2140         CFN_FNMA and CFN_FNMS.
2141         (fold_fma): Delete.
2142         * genmatch.c (combined_fn): New enum.
2143         (commutative_ternary_tree_code): Remove FMA_EXPR handling.
2144         (commutative_op): New function.
2145         (commutate): Use it.  Handle more than 2 operands.
2146         (dt_operand::gen_gimple_expr): Use commutative_op.
2147         (parser::parse_expr): Allow :c to be used with non-binary
2148         operators if the commutative operand is known.
2149         * gimple-ssa-backprop.c (backprop::process_builtin_call_use): Handle
2150         CFN_FMS, CFN_FNMA and CFN_FNMS.
2151         (backprop::process_assign_use): Remove FMA_EXPR handling.
2152         * hsa-gen.c (gen_hsa_insns_for_operation_assignment): Likewise.
2153         (gen_hsa_fma): New function.
2154         (gen_hsa_insn_for_internal_fn_call): Use it for IFN_FMA, IFN_FMS,
2155         IFN_FNMA and IFN_FNMS.
2156         * match.pd: Add folds for IFN_FMS, IFN_FNMA and IFN_FNMS.
2157         * gimple-fold.h (follow_all_ssa_edges): Declare.
2158         * gimple-fold.c (follow_all_ssa_edges): New function.
2159         * tree-ssa-math-opts.c (convert_mult_to_fma_1): Use the
2160         gimple_build interface and use follow_all_ssa_edges to fold the result.
2161         (convert_mult_to_fma): Use direct_internal_fn_suppoerted_p
2162         instead of checking for optabs directly.
2163         * config/i386/i386.c (ix86_add_stmt_cost): Recognize FMAs as calls
2164         rather than FMA_EXPRs.
2165         * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Create a
2166         call to IFN_FMA instead of an FMA_EXPR.
2167
2168 2018-05-17  Jim Wilson  <jimw@sifive.com>
2169
2170         * expr.c (do_tablejump): When converting index to Pmode, if we have a
2171         sign extended promoted subreg, and the range does not have the sign bit
2172         set, then do a sign extend.
2173
2174         * config/riscv/riscv.c (riscv_extend_comparands): In unsigned QImode
2175         test, check for sign extended subreg and/or constant operands, and
2176         do a sign extend in that case.
2177
2178 2018-05-17  Steve Ellcey  <sellcey@cavium.com>
2179
2180         * config/aarch64/thunderx2t99.md (thunderx2t99_ls_both): Delete.
2181         (thunderx2t99_multiple): Delete psuedo-units from used cpus.
2182         Add untyped.
2183         (thunderx2t99_alu_shift): Remove alu_shift_reg, alus_shift_reg.
2184         Change logics_shift_reg to logics_shift_imm.
2185         (thunderx2t99_fp_loadpair_basic): Delete.
2186         (thunderx2t99_fp_storepair_basic): Delete.
2187         (thunderx2t99_asimd_int): Add neon_sub and neon_sub_q types.
2188         (thunderx2t99_asimd_polynomial): Delete.
2189         (thunderx2t99_asimd_fp_simple): Add neon_fp_mul_s_scalar_q
2190         and neon_fp_mul_d_scalar_q.
2191         (thunderx2t99_asimd_fp_conv): Add *int_to_fp* types.
2192         (thunderx2t99_asimd_misc): Delete neon_dup and neon_dup_q.
2193         (thunderx2t99_asimd_recip_step): Add missing *sqrt* types.
2194         (thunderx2t99_asimd_lut): Add missing tbl types.
2195         (thunderx2t99_asimd_ext): Delete.
2196         (thunderx2t99_asimd_load1_1_mult): Delete.
2197         (thunderx2t99_asimd_load1_2_mult): Delete.
2198         (thunderx2t99_asimd_load1_ldp): New.
2199         (thunderx2t99_asimd_load1): New.
2200         (thunderx2t99_asimd_load2): Add missing *load2* types.
2201         (thunderx2t99_asimd_load3): New.
2202         (thunderx2t99_asimd_load4): New.
2203         (thunderx2t99_asimd_store1_1_mult): Delete.
2204         (thunderx2t99_asimd_store1_2_mult): Delete.
2205         (thunderx2t99_asimd_store2_mult): Delete.
2206         (thunderx2t99_asimd_store2_onelane): Delete.
2207         (thunderx2t99_asimd_store_stp): New.
2208         (thunderx2t99_asimd_store1): New.
2209         (thunderx2t99_asimd_store2): New.
2210         (thunderx2t99_asimd_store3): New.
2211         (thunderx2t99_asimd_store4): New.
2212
2213 2018-05-17  Jerome Lambourg  <lambourg@adacore.com>
2214
2215         * config/arm/arm_cmse.h (cmse_nsfptr_create, cmse_is_nsfptr): Remove
2216         #include <stdint.h>.  Replace intptr_t with __INTPTR_TYPE__.
2217
2218 2018-05-17  Pat Haugen  <pthaugen@us.ibm.com>
2219             Segher Boessenkool  <segher@kernel.crashing.org>
2220
2221         PR target/85698
2222         * config/rs6000/rs6000.c (rs6000_output_move_128bit): Check dest
2223         operand.
2224
2225 2018-05-17  Richard Biener  <rguenther@suse.de>
2226
2227         * tree-ssa-dse.c (dse_classify_store): Fix iterator increment
2228         for pruning loop and prune defs feeding only already visited PHIs.
2229
2230 2018-05-17  Richard Biener  <rguenther@suse.de>
2231
2232         * tree-ssa-sccvn.c (vn_reference_lookup_3): Improve memset handling.
2233
2234 2018-05-17  Bin Cheng  <bin.cheng@arm.com>
2235             Richard Biener  <rguenther@suse.de>
2236
2237         PR tree-optimization/85793
2238         * tree-vect-stmts.c (vectorizable_load): Handle 1 element-wise load
2239         for VMAT_ELEMENTWISE.
2240
2241 2018-05-17  Richard Sandiford  <richard.sandiford@linaro.org>
2242
2243         * internal-fn.h (lookup_internal_fn): Declare
2244         * internal-fn.c (lookup_internal_fn): New function.
2245         * gimple.c (gimple_build_call_from_tree): Handle calls to
2246         internal functions.
2247         * gimple-pretty-print.c (dump_gimple_call): Print "." before
2248         internal function names.
2249         * tree-pretty-print.c (dump_generic_node): Likewise.
2250         * tree-ssa-scopedtables.c (expr_hash_elt::print): Likewise.
2251
2252 2018-05-17  Richard Sandiford  <richard.sandiford@linaro.org>
2253
2254         * gimple-fold.h (gimple_build): Make the function forms take
2255         combined_fn rather than built_in_function.
2256         (gimple_simplify): Likewise.
2257         * gimple-match-head.c (gimple_simplify): Likewise.
2258         * gimple-fold.c (gimple_build): Likewise.
2259         * tree-vect-loop.c (get_initial_def_for_reduction): Use gimple_build
2260         rather than gimple_build_call_internal.
2261         (get_initial_defs_for_reduction): Likewise.
2262         (vect_create_epilog_for_reduction): Likewise.
2263         (vectorizable_live_operation): Likewise.
2264
2265 2018-05-17  Martin Liska  <mliska@suse.cz>
2266
2267         * gimple-ssa-sprintf.c (format_directive): Do not use
2268         space in between 'G_' and '('.
2269
2270 2018-05-17  Jakub Jelinek  <jakub@redhat.com>
2271
2272         PR target/85323
2273         * config/i386/i386.c (ix86_fold_builtin): Handle masked shifts
2274         even if the mask is not all ones.
2275
2276         PR target/85323
2277         * config/i386/i386.c (ix86_fold_builtin): Fold shift builtins by
2278         vector.
2279         (ix86_gimple_fold_builtin): Likewise.
2280
2281         PR target/85323
2282         * config/i386/i386.c: Include tree-vector-builder.h.
2283         (ix86_vector_shift_count): New function.
2284         (ix86_fold_builtin): Fold shift builtins by scalar count.
2285         (ix86_gimple_fold_builtin): Likewise.
2286
2287         * config/i386/avx512fintrin.h (_mm512_set_epi16, _mm512_set_epi8,
2288         _mm512_setzero): New intrinsics.
2289
2290 2018-05-17  James Greenhalgh  <james.greenhalgh@arm.com>
2291             Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
2292
2293         * config/aarch64/aarch64.c (aarch64_expand_vector_init): Modify
2294         code generation for cases where splatting a value is not useful.
2295         * simplify-rtx.c (simplify_ternary_operation): Simplify
2296         vec_merge across a vec_duplicate and a paradoxical subreg forming
2297         a vector mode to a vec_concat.
2298
2299 2018-05-17  Olga Makhotina  <olga.makhotina@intel.com>
2300
2301         * config.gcc: Support "goldmont-plus".
2302         * config/i386/driver-i386.c (host_detect_local_cpu): Detect
2303         "goldmont-plus".
2304         * config/i386/i386-c.c (ix86_target_macros_internal): Handle
2305         PROCESSOR_GOLDMONT_PLUS.
2306         * config/i386/i386.c (m_GOLDMONT_PLUS): Define.
2307         (processor_target_table): Add "goldmont-plus".
2308         (PTA_GOLDMONT_PLUS): Define.
2309         (ix86_lea_outperforms): Add TARGET_GOLDMONT_PLUS.
2310         (get_builtin_code_for_version): Handle PROCESSOR_GOLDMONT_PLUS.
2311         (fold_builtin_cpu): Add M_INTEL_GOLDMONT_PLUS.
2312         (fold_builtin_cpu): Add "goldmont-plus".
2313         (ix86_add_stmt_cost): Add TARGET_GOLDMONT_PLUS.
2314         (ix86_option_override_internal): Add "goldmont-plus".
2315         * config/i386/i386.h (processor_costs): Define TARGET_GOLDMONT_PLUS.
2316         (processor_type): Add PROCESSOR_GOLDMONT_PLUS.
2317         * config/i386/x86-tune.def: Add m_GOLDMONT_PLUS.
2318         * doc/invoke.texi: Add goldmont-plus as x86 -march=/-mtune= CPU type.
2319
2320 2018-05-17  Richard Biener  <rguenther@suse.de>
2321
2322         PR tree-optimization/85757
2323         * tree-ssa-dse.c (dse_classify_store): Record a PHI def and
2324         remove defs that only feed that PHI from further processing.
2325
2326 2018-05-16  Jim Wilson  <jimw@sifive.com>
2327
2328         * config/riscv/riscv.md (<optab>si3_mask, <optab>si3_mask_1): Prepend
2329         asterisk to name.
2330         (<optab>di3_mask, <optab>di3_mask_1): Likewise.
2331
2332 2018-05-16  Mark Wielaard  <mark@klomp.org>
2333
2334         * dwarf2out.c (count_index_strings): New function.
2335         (output_indirect_strings): Call count_index_strings and generate
2336         header for dwarf_version >= 5.
2337
2338 2018-05-16  Mark Wielaard  <mark@klomp.org>
2339
2340         * dwarf2out.c (dwarf_FORM): New function.
2341         (set_indirect_string): Use dwarf_FORM.
2342         (reset_indirect_string): Likewise.
2343         (size_of_die): Likewise.
2344         (value_format): Likewise.
2345         (output_die): Likewise.
2346         (add_skeleton_AT_string): Likewise.
2347         (output_macinfo_op): Likewise.
2348         (index_string): Likewise.
2349         (output_index_string_offset): Likewise.
2350         (output_index_string): Likewise.
2351         (count_index_strings): Likewise.
2352
2353 2018-05-16  Carl Love  <cel@us.ibm.com>
2354
2355         * config/rs6000/rs6000.md (prefetch): Generate ISA 2.06 instructions
2356         dcbt and dcbtstt with TH=16 if operands[2] is 0 and Power 8 or newer.
2357
2358 2018-05-16  Martin Jambor  <mjambor@suse.cz>
2359
2360         * ipa-prop.c (ipa_free_all_edge_args): Remove.
2361         * ipa-prop.h (ipa_free_all_edge_args): Likewise.
2362
2363 2018-05-16  Wilco Dijkstra  <wdijkstr@arm.com>
2364
2365         * config/aarch64/aarch64.md (fma<mode>4): Change into expand pattern.
2366         (fnma<mode>4): Likewise.
2367         (fms<mode>4): Likewise.
2368         (fnms<mode>4): Likewise.
2369         (aarch64_fma<mode>4): Rename insn, reorder accumulator operand.
2370         (aarch64_fnma<mode>4): Likewise.
2371         (aarch64_fms<mode>4): Likewise.
2372         (aarch64_fnms<mode>4): Likewise.
2373         (aarch64_fnmadd<mode>4): Likewise.
2374
2375 2018-05-16  Jason Merrill  <jason@redhat.com>
2376
2377         * tree.c (warn_deprecated_use): Return bool.  Simplify logic.
2378
2379 2018-05-16  Richard Biener  <rguenther@suse.de>
2380
2381         * tree-vectorizer.h (struct stmt_info_for_cost): Add where member.
2382         (dump_stmt_cost): Declare.
2383         (add_stmt_cost): Dump cost we add.
2384         (add_stmt_costs): New function.
2385         (vect_model_simple_cost, vect_model_store_cost, vect_model_load_cost):
2386         No longer exported.
2387         (vect_analyze_stmt): Adjust prototype.
2388         (vectorizable_condition): Likewise.
2389         (vectorizable_live_operation): Likewise.
2390         (vectorizable_reduction): Likewise.
2391         (vectorizable_induction): Likewise.
2392         * tree-vect-loop.c (vect_analyze_loop_operations): Create local
2393         cost vector to pass to vectorizable_ and record afterwards.
2394         (vect_model_reduction_cost): Take cost vector argument and adjust.
2395         (vect_model_induction_cost): Likewise.
2396         (vectorizable_reduction): Likewise.
2397         (vectorizable_induction): Likewise.
2398         (vectorizable_live_operation): Likewise.
2399         * tree-vect-slp.c (vect_create_new_slp_node): Initialize
2400         SLP_TREE_NUMBER_OF_VEC_STMTS.
2401         (vect_analyze_slp_cost_1): Remove.
2402         (vect_analyze_slp_cost): Likewise.
2403         (vect_slp_analyze_node_operations): Take visited args and
2404         a target cost vector.  Avoid processing already visited stmt sets.
2405         (vect_slp_analyze_operations): Use a local cost vector to gather
2406         costs and register those of non-discarded instances.
2407         (vect_bb_vectorization_profitable_p): Use add_stmt_costs.
2408         (vect_schedule_slp_instance): Remove copying of
2409         SLP_TREE_NUMBER_OF_VEC_STMTS.  Instead assert that it is not
2410         zero.
2411         * tree-vect-stmts.c (record_stmt_cost): Remove path directly
2412         adding cost.  Record cost entry location.
2413         (vect_prologue_cost_for_slp_op): Function to compute cost of
2414         a constant or invariant generated for SLP vect in the prologue,
2415         split out from vect_analyze_slp_cost_1.
2416         (vect_model_simple_cost): Make static.  Adjust for SLP costing.
2417         (vect_model_promotion_demotion_cost): Likewise.
2418         (vect_model_store_cost): Likewise, make static.
2419         (vect_model_load_cost): Likewise.
2420         (vectorizable_bswap): Add cost vector arg and adjust.
2421         (vectorizable_call): Likewise.
2422         (vectorizable_simd_clone_call): Likewise.
2423         (vectorizable_conversion): Likewise.
2424         (vectorizable_assignment): Likewise.
2425         (vectorizable_shift): Likewise.
2426         (vectorizable_operation): Likewise.
2427         (vectorizable_store): Likewise.
2428         (vectorizable_load): Likewise.
2429         (vectorizable_condition): Likewise.
2430         (vectorizable_comparison): Likewise.
2431         (can_vectorize_live_stmts): Likewise.
2432         (vect_analyze_stmt): Likewise.
2433         (vect_transform_stmt): Adjust calls to vectorizable_*.
2434         * tree-vectorizer.c: Include gimple-pretty-print.h.
2435         (dump_stmt_cost): New function.
2436
2437 2018-05-16  Richard Biener  <rguenther@suse.de>
2438
2439         * params.def (PARAM_DSE_MAX_ALIAS_QUERIES_PER_STORE): New param.
2440         * doc/invoke.texi (dse-max-alias-queries-per-store): Document.
2441         * tree-ssa-dse.c: Include tree-ssa-loop.h.
2442         (check_name): New callback.
2443         (dse_classify_store): Track cycles via a visited bitmap of PHI
2444         defs and simplify handling of in-loop and across loop dead stores
2445         and properly fail for loop-variant refs.  Handle byte-tracking with
2446         multiple defs.  Use PARAM_DSE_MAX_ALIAS_QUERIES_PER_STORE for
2447         limiting the walk.
2448
2449 2018-05-16  Richard Sandiford  <richard.sandiford@linaro.org>
2450
2451         * tree-vectorizer.h (vect_get_vector_types_for_stmt): Declare.
2452         (vect_get_mask_type_for_stmt): Likewise.
2453         * tree-vect-slp.c (vect_two_operations_perm_ok_p): New function,
2454         split out from...
2455         (vect_build_slp_tree_1): ...here.  Use vect_get_vector_types_for_stmt
2456         to determine the statement's vector type and the vector type that
2457         should be used for calculating nunits.  Deal with cases in which
2458         the type has to be deferred.
2459         (vect_slp_analyze_node_operations): Use vect_get_vector_types_for_stmt
2460         and vect_get_mask_type_for_stmt to calculate STMT_VINFO_VECTYPE.
2461         * tree-vect-loop.c (vect_determine_vf_for_stmt_1)
2462         (vect_determine_vf_for_stmt): New functions, split out from...
2463         (vect_determine_vectorization_factor): ...here.
2464         * tree-vect-stmts.c (vect_get_vector_types_for_stmt)
2465         (vect_get_mask_type_for_stmt): New functions, split out from
2466         vect_determine_vectorization_factor.
2467
2468 2018-05-16  Richard Biener  <rguenther@suse.de>
2469
2470         * tree-cfg.c (verify_gimple_assign_ternary): Properly
2471         verify the [VEC_]COND_EXPR embedded comparison.
2472
2473 2018-05-15  Martin Sebor  <msebor@redhat.com>
2474
2475         PR tree-optimization/85753
2476         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Handle
2477         RECORD_TYPE in addition to ARRAY_TYPE.
2478
2479 2018-05-15  Martin Sebor  <msebor@redhat.com>
2480
2481         PR middle-end/85643
2482         * calls.c (get_attr_nonstring_decl): Handle MEM_REF.
2483
2484 2018-05-15  Richard Biener  <rguenther@suse.de>
2485
2486         * tree-ssa-dse.c (dse_classify_store): Remove use_stmt parameter,
2487         add by_clobber_p one.  Change algorithm to collect all defs
2488         representing uses we need to walk and try reducing them to
2489         a single one before failing.
2490         (dse_dom_walker::dse_optimize_stmt): Adjust.
2491
2492 2018-05-13  Mark Wielaard  <mark@klomp.org>
2493
2494         * dwarf2out.c (dwarf_OP): Handle DW_OP_addrx and DW_OP_constx.
2495         (size_of_loc_descr): Likewise.
2496         (output_loc_operands): Likewise.
2497         (output_loc_operands_raw): Likewise.
2498         (dw_addr_op): Use dwarf_OP () for DW_OP_constx and DW_OP_addrx.
2499         (resolve_addr_in_expr): Handle DW_OP_addrx and DW_OP_constx.
2500         (hash_loc_operands): Likewise.
2501         (compare_loc_operands): Likewise.
2502
2503 2018-05-14  Mark Wielaard  <mark@klomp.org>
2504
2505         * dwarf2out.c (count_index_addrs): New function.
2506         (dwarf2out_finish): Use count_index_addrs to calculate addrs_length.
2507
2508 2018-05-15  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
2509
2510         PR tree-optimization/83648
2511         * ipa-pure-const.c (malloc_candidate_p): Allow function with NULL
2512         return value as malloc candidate.
2513
2514 2018-05-15  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
2515
2516         PR ipa/85734
2517         * ipa-pure-const.c (warn_function_malloc): Pass value of known_finite
2518         param as true in call to suggest_attribute.
2519
2520 2018-05-14  Segher Boessenkool  <segher@kernel.crashing.org>
2521
2522         * doc/invoke.texi (RS/6000 and PowerPC Options): Delete @itemx for
2523         -mreadonly-in-sdata.
2524
2525 2018-05-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
2526
2527         * config/aarch64/aarch64-simd.md (*aarch64_crypto_aese_fused):
2528         New pattern.
2529         (aarch64_crypto_aesd_fused): Likewise.
2530
2531 2018-05-14  Wilco Dijkstra  <wdijkstr@arm.com>
2532
2533         * config/aarch64/aarch64.md (mov<mode>): Remove '*' in alternatives.
2534         (movsi_aarch64): Likewise.
2535         (load_pairsi): Likewise.
2536         (load_pairdi): Likewise.
2537         (store_pairsi): Likewise.
2538         (store_pairdi): Likewise.
2539         (load_pairsf): Likewise.
2540         (load_pairdf): Likewise.
2541         (store_pairsf): Likewise.
2542         (store_pairdf): Likewise.
2543         (zero_extend): Likewise.
2544         (trunc): Swap alternatives.
2545         (fcvt_target): Add '?' to prefer w over r.
2546
2547 2018-05-14  Jakub Jelinek  <jakub@redhat.com>
2548
2549         PR target/85756
2550         * config/i386/i386.md: Disallow non-commutative arithmetics in
2551         last twpeephole for mem {+,-,&,|,^}= x; mem != 0 after cmpelim
2552         optimization.  Use COMMUTATIVE_ARITH_P test rather than != MINUS
2553         in the peephole2 before it.
2554
2555 2018-05-14  Sebastian Peryt  <sebastian.peryt@intel.com>
2556
2557         * common/config/i386/i386-common.c (OPTION_MASK_ISA_CLDEMOTE_SET,
2558         OPTION_MASK_ISA_CLDEMOTE_UNSET): New defines.
2559         (ix86_handle_option): Handle -mcldemote.
2560         * config.gcc: New header.
2561         * config/i386/cldemoteintrin.h: New file.
2562         * config/i386/cpuid.h (bit_CLDEMOTE): New bit.
2563         * config/i386/driver-i386.c (host_detect_local_cpu): Detect
2564         -mcldemote.
2565         * config/i386/i386-c.c (ix86_target_macros_internal): Handle
2566         OPTION_MASK_ISA_CLDEMOTE.
2567         * config/i386/i386.c (ix86_target_string): Add -mcldemote.
2568         (ix86_valid_target_attribute_inner_p): Ditto.
2569         (enum ix86_builtins): Add IX86_BUILTIN_CLDEMOTE.
2570         (ix86_init_mmx_sse_builtins): Define __builtin_ia32_cldemote.
2571         (ix86_expand_builtin): Expand IX86_BUILTIN_CLDEMOTE.
2572         * config/i386/i386.h (TARGET_CLDEMOTE, TARGET_CLDEMOTE_P): New.
2573         * config/i386/i386.md (UNSPECV_CLDEMOTE): New.
2574         (cldemote): New.
2575         * config/i386/i386.opt: Add -mcldemote.
2576         * config/i386/x86intrin.h: New header.
2577         * doc/invoke.texi: Add -mcldemote.
2578
2579 2018-05-14  Richard Biener  <rguenther@suse.de>
2580
2581         * doc/match-and-simplify.texi: Adjust :s documentation.
2582
2583 2018-05-14  Alexander Monakov  <amonakov@ispras.ru>
2584
2585         * sort.cc (REORDER_23): Pass the type for the temporaries instead of
2586         intended memcpy size.
2587         (REORDER_45): Likewise.
2588
2589 2018-05-13  Alexander Monakov  <amonakov@ispras.ru>
2590
2591         * sort.cc: New file.
2592         * system.h [!CHECKING_P] (qsort): Redirect to gcc_qsort.
2593         * vec.c (qsort_chk): Use gcc_qsort.
2594         * Makefile.in (OBJS-libcommon): Add sort.o.
2595         (build/sort.o): New target.  Use it...
2596         (BUILD_RTL): ... here, and...
2597         (build/gencfn-macros): ... here, and...
2598         (build/genmatch): ... here.
2599
2600 2018-05-13  Kito Cheng  <kito.cheng@gmail.com>
2601             Chung-Ju Wu  <jasonwucj@gmail.com>
2602
2603         * config.gcc (nds32*-*-*): Check that n15 is valid to --with-cpu.
2604         * config/nds32/nds32-graywolf.md: New file.
2605         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_GRAYWOLF.
2606         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n15
2607         pipeline.
2608         * config/nds32/nds32-protos.h: More declarations for n15 pipeline.
2609         * config/nds32/nds32-utils.c: More implementations for n15 pipeline.
2610         * config/nds32/nds32.md (pipeline_model): Add graywolf.
2611         * config/nds32/nds32.opt (mcpu): Support n15 pipeline cpus.
2612         * config/nds32/pipelines.md: Include n15 settings.
2613
2614 2018-05-13  Kito Cheng  <kito.cheng@gmail.com>
2615             Chung-Ju Wu  <jasonwucj@gmail.com>
2616
2617         * config.gcc (nds32*-*-*): Check that n12/n13 are valid to --with-cpu.
2618         * config/nds32/nds32-n13.md: New file.
2619         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_N12 and CPU_N13.
2620         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n12/n13
2621         pipeline.
2622         * config/nds32/nds32-protos.h: More declarations for n12/n13 pipeline.
2623         * config/nds32/nds32.md (pipeline_model): Add n13.
2624         * config/nds32/nds32.opt (mcpu): Support n12/n13 pipeline cpus.
2625         * config/nds32/pipelines.md: Include n13 settings.
2626
2627 2018-05-13  Kito Cheng  <kito.cheng@gmail.com>
2628             Chung-Ju Wu  <jasonwucj@gmail.com>
2629
2630         * config.gcc (nds32*-*-*): Check that n10/d10 are valid to --with-cpu.
2631         * config/nds32/nds32-n10.md: New file.
2632         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_N10.
2633         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n10
2634         pipeline.
2635         * config/nds32/nds32-protos.h: More declarations for n10 pipeline.
2636         * config/nds32/nds32-utils.c: More implementations for n10 pipeline.
2637         * config/nds32/nds32.md (pipeline_model): Add n10.
2638         * config/nds32/nds32.opt (mcpu): Support n10 pipeline cpus.
2639         * config/nds32/pipelines.md: Include n10 settings.
2640
2641 2018-05-13  Monk Chiang  <sh.chiang04@gmail.com>
2642             Kito Cheng  <kito.cheng@gmail.com>
2643             Chung-Ju Wu  <jasonwucj@gmail.com>
2644
2645         * config.gcc (nds32be-*-*): Handle --with-ext-dsp.
2646         * config/nds32/constants.md (unspec_element, unspec_volatile_element):
2647         Add enum values for DSP extension instructions.
2648         * config/nds32/constraints.md (Iu06, IU06, CVp5, CVs5, CVs2, CVhi):
2649         New constraints.
2650         * config/nds32/iterators.md (shifts, shiftrt, sat_plus, all_plus,
2651         sat_minus, all_minus, plus_minus, extend, sumax, sumin, sumin_max):
2652         New code iterators.
2653         (su, zs, uk, opcode, add_rsub, add_sub): New code attributes.
2654         * config/nds32/nds32-dspext.md: New file for DSP implementation.
2655         * config/nds32/nds32-intrinsic.c: Implementation of DSP extension.
2656         * config/nds32/nds32-intrinsic.md: Likewise.
2657         * config/nds32/nds32_intrinsic.h: Likewise.
2658         * config/nds32/nds32-md-auxiliary.c: Likewise.
2659         * config/nds32/nds32-memory-manipulation.c: Consider DSP extension.
2660         * config/nds32/nds32-predicates.c (const_vector_to_hwint): New.
2661         (nds32_valid_CVp5_p, nds32_valid_CVs5_p): New.
2662         (nds32_valid_CVs2_p, nds32_valid_CVhi_p): New.
2663         * config/nds32/nds32-protos.h: New declarations for DSP extension.
2664         * config/nds32/nds32-utils.c (extract_mac_non_acc_rtx): New case
2665         TYPE_DMAC in switch statement.
2666         * config/nds32/nds32.c: New checking and implementation for DSP
2667         extension instructions.
2668         * config/nds32/nds32.h: Likewise.
2669         * config/nds32/nds32.md: Likewise.
2670         * config/nds32/nds32.opt (mhw-abs, mext-dsp): New options.
2671         * config/nds32/predicates.md: Implement new predicates for DSP
2672         extension.
2673
2674 2018-05-11  Michael Meissner  <meissner@linux.vnet.ibm.com>
2675
2676         * config/rs6000/rs6000.md (mov<mode>_softfloat, FMOVE32):
2677         Reformat alternatives and attributes so it is easier to identify
2678         which constraints/attributes go with which instruction.
2679         (mov<mode>_hardfloat32, FMOVE64): Likewise.
2680         (mov<mode>_softfloat32, FMOVE64): Likewise.
2681         (mov<mode>_hardfloat64, FMOVE64): Likewise.
2682         (mov<mode>_softfloat64, FMOVE64): Likewise.
2683
2684 2018-05-11  Kelvin Nilsen  <kelvin@gcc.gnu.org>
2685
2686         * doc/extend.texi (PowerPC Built-in Functions): Rename this
2687         subsection.
2688         (Basic PowerPC Built-in Functions): The new name of the
2689         subsection previously known as "PowerPC Built-in Functions".
2690         (Basic PowerPC Built-in Functions Available on all Configurations):
2691         New subsubsection.
2692         (Basic PowerPC Built-in Functions Available on ISA 2.05): Likewise.
2693         (Basic PowerPC Built-in Functions Available on ISA 2.06): Likewise.
2694         (Basic PowerPC Built-in Functions Available on ISA 2.07): Likewise.
2695         (Basic PowerPC Built-in Functions Available on ISA 3.0): Likewise.
2696
2697 2018-05-11  Martin Jambor  <mjambor@suse.cz>
2698
2699         PR ipa/85655
2700         * ipa-cp.c (intersect_with_plats): Check that the lattice contains
2701         single const.
2702
2703 2018-05-11  Richard Earnshaw  <rearnsha@arm.com>
2704
2705         PR target/85733
2706         * config/arm/arm-cpus.in (fgroup ARMv6m): Add be8 feature.
2707
2708 2018-05-11  Sebastian Peryt  <sebastian.peryt@intel.com>
2709
2710         * common/config/i386/i386-common.c (OPTION_MASK_ISA_WAITPKG_SET,
2711         OPTION_MASK_ISA_WAITPKG_UNSET): New defines.
2712         (ix86_handle_option): Handle -mwaitpkg.
2713         * config.gcc: New header.
2714         * config/i386/cpuid.h (bit_WAITPKG): New bit.
2715         * config/i386/driver-i386.c (host_detect_local_cpu): Detect -mwaitpkg.
2716         * config/i386/i386-builtin-types.def ((UINT8, UNSIGNED, UINT64)): New
2717         function type.
2718         * config/i386/i386-c.c (ix86_target_macros_internal): Handle
2719         OPTION_MASK_ISA_WAITPKG.
2720         * config/i386/i386.c (ix86_target_string): Add -mwaitpkg.
2721         (ix86_option_override_internal): Add PTA_WAITPKG.
2722         (ix86_valid_target_attribute_inner_p): Add -mwaitpkg.
2723         (enum ix86_builtins): Add IX86_BUILTIN_UMONITOR, IX86_BUILTIN_UMWAIT,
2724         IX86_BUILTIN_TPAUSE.
2725         (ix86_init_mmx_sse_builtins): Define __builtin_ia32_umonitor,
2726         __builtin_ia32_umwait and __builtin_ia32_tpause.
2727         (ix86_expand_builtin): Expand IX86_BUILTIN_UMONITOR,
2728         IX86_BUILTIN_UMWAIT, IX86_BUILTIN_TPAUSE.
2729         * config/i386/i386.h (TARGET_WAITPKG, TARGET_WAITPKG_P): New.
2730         * config/i386/i386.md (UNSPECV_UMWAIT, UNSPECV_UMONITOR,
2731         UNSPECV_TPAUSE): New.
2732         (umwait, umwait_rex64, umonitor_<mode>, tpause, tpause_rex64): New.
2733         * config/i386/i386.opt: Add -mwaitpkg.
2734         * config/i386/waitpkgintrin.h: New file.
2735         * config/i386/x86intrin.h: New header.
2736         * doc/invoke.texi: Add -mwaitpkg.
2737
2738 2018-05-11  Richard Earnshaw  <rearnsha@arm.com>
2739
2740         PR target/85606
2741         * config/arm/arm-cpus.in: Add comment that ARMv6-m and ARMv6S-m are now
2742         equivalent.
2743         (cortex-m0): Use armv6s-m isa.
2744         (cortex-m0plus): Likewise.
2745         (cortex-m1): Likewise.
2746         (cortex-m0.small-multiply): Likewise.
2747         (cortex-m0plus.small-multiply): Likewise.
2748         (cortex-m1.small-multiply): Likewise.
2749
2750 2018-05-11  Allan Sandfeld Jensen  <allan.jensen@qt.io>
2751             Jakub Jelinek  <jakub@redhat.com>
2752
2753         PR tree-optimization/85692
2754         * tree-ssa-forwprop.c (simplify_vector_constructor): Try two
2755         source permute as well.
2756
2757 2018-05-11  Martin Liska  <mliska@suse.cz>
2758
2759         PR sanitizer/85556
2760         * doc/extend.texi: Document LLVM style format for no_sanitize
2761         attribute.
2762
2763 2018-05-10  Michael Meissner  <meissner@linux.vnet.ibm.com>
2764
2765         * config/rs6000/rs6000.c (mode_supports_dq_form): Rename
2766         mode_supports_vsx_dform_quad to mode_supports_dq_form.
2767         (mode_supports_vsx_dform_quad): Likewise.
2768         (mode_supports_vmx_dform): Move these functions to be next to the
2769         other mode_supports functions.
2770         (mode_supports_dq_form): Likewise.
2771         (quad_address_p): Change calls of mode_supports_vsx_dform_quad to
2772         mode_supports_dq_form.
2773         (reg_offset_addressing_ok_p): Likewise.
2774         (offsettable_ok_by_alignment): Likewise.
2775         (rs6000_legitimate_offset_address_p): Likewise.
2776         (legitimate_lo_sum_address_p): Likewise.
2777         (rs6000_legitimize_address): Likewise.
2778         (rs6000_legitimize_reload_address): Likewise.
2779         (rs6000_secondary_reload_inner): Likewise.
2780         (rs6000_preferred_reload_class): Likewise.
2781         (rs6000_output_move_128bit): Likewise.
2782
2783 2018-05-10  Uros Bizjak  <ubizjak@gmail.com>
2784
2785         * config/i386/i386.c (ix86_expand_builtin) <case IX86_BUILTIN_RDPID>:
2786         Generate SImode target register for null target.
2787         <case IX86_BUILTIN_XGETBV>: Ditto.
2788         <case IX86_BUILTIN_XSETBV>: Optimize LSHIFTRT generation.
2789         * config/i386/xsaveintrin.h (_xgetbv): Add missing return.
2790
2791 2018-05-10  Carl Love  <cel@us.ibm.com>
2792
2793         * config/rs6000/rs6000.md (prefetch): Generate ISA 2.06 instructions
2794         dcbtt and dcbtstt if operands[2] is 0.
2795
2796 2018-05-10  Uros Bizjak  <ubizjak@gmail.com>
2797
2798         PR target/85693
2799         * config/i386/sse.md (usadv64qi): New expander.
2800
2801 2018-05-10  Segher Boessenkool  <segher@kernel.crashing.org>
2802
2803         * config/rs6000/altivec.md (altivec_vmrghb, altivec_vmrghh,
2804         altivec_vmrghw, altivec_vmrglb, altivec_vmrglh, altivec_vmrglw): Remove
2805         -maltivec=be support.
2806         (vec_widen_umult_even_v16qi, vec_widen_smult_even_v16qi,
2807         vec_widen_umult_even_v8hi, vec_widen_smult_even_v8hi,
2808         vec_widen_umult_even_v4si, vec_widen_smult_even_v4si,
2809         vec_widen_umult_odd_v16qi, vec_widen_smult_odd_v16qi,
2810         vec_widen_umult_odd_v8hi, vec_widen_smult_odd_v8hi,
2811         vec_widen_umult_odd_v4si, vec_widen_smult_odd_v4si, altivec_vpkpx,
2812         altivec_vpks<VI_char>ss, altivec_vpks<VI_char>us,
2813         altivec_vpku<VI_char>us, altivec_vpku<VI_char>um, altivec_vsum2sws,
2814         altivec_vsumsws): Adjust.
2815         (altivec_vspltb *altivec_vspltb_internal, altivec_vsplth,
2816         *altivec_vsplth_internal, altivec_vspltw, *altivec_vspltw_internal,
2817         altivec_vspltsf, *altivec_vspltsf_internal): Remove -maltivec=be
2818         support.
2819         (altivec_vperm_<mode>, altivec_vperm_<mode>_uns,
2820         altivec_vupkhs<VU_char>, altivec_vupkls<VU_char>, altivec_vupkhpx,
2821         altivec_vupklpx, altivec_lvsl, altivec_lvsr): Adjust.
2822         (altivec_lve<VI_char>x): Delete expand.
2823         (*altivec_lve<VI_char>x_internal): Rename to...
2824         (altivec_lve<VI_char>x): ... this.
2825         (altivec_lvxl_<mode>): Delete expand.
2826         (*altivec_lvxl_<mode>_internal): Rename to ...
2827         (altivec_lvxl_<mode>): ... this.
2828         (altivec_stvxl_<mode>): Delete expand.
2829         (*altivec_stvxl_<mode>_internal): Rename to ...
2830         (altivec_stvxl_<mode>): ... this.
2831         (altivec_stve<VI_char>x): Delete expand.
2832         (*altivec_stve<VI_char>x_internal): Rename to ...
2833         (altivec_stve<VI_char>x): ... this.
2834         (doublee<mode>2, unsdoubleev4si2, doubleo<mode>2, unsdoubleov4si2,
2835         doubleh<mode>2, unsdoublehv4si2, doublel<mode>2, unsdoublelv4si2,
2836         reduc_plus_scal_<mode>): Adjust.
2837         * config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Adjust
2838         comment.
2839         (rs6000_cpu_cpp_builtins): Adjust.
2840         (altivec_resolve_overloaded_builtin): Remove -maltivec=be support.
2841         * config/rs6000/rs6000-protos.h (altivec_expand_lvx_be,
2842         altivec_expand_stvx_be, altivec_expand_stvex_be): Delete.
2843         * config/rs6000/rs6000.c (rs6000_option_override_internal): Remove
2844         -maltivec=be support.
2845         (rs6000_split_vec_extract_var): Adjust.
2846         (rs6000_split_v4si_init): Adjust.
2847         (swap_selector_for_mode): Delete.
2848         (altivec_expand_lvx_be, altivec_expand_stvx_be,
2849         altivec_expand_stvex_be): Delete.
2850         (altivec_expand_lv_builtin, altivec_expand_stv_builtin): Remove
2851         -maltivec=be support.
2852         (rs6000_gimple_fold_builtin): Ditto.
2853         (rs6000_generate_float2_double_code, rs6000_generate_float2_code):
2854         Adjust.
2855         * config/rs6000/rs6000.h (VECTOR_ELT_ORDER_BIG): Delete.
2856         (TARGET_DIRECT_MOVE_64BIT): Adjust.
2857         * config/rs6000/rs6000.md (split for extendsidi2 for vectors): Adjust.
2858         * config/rs6000/rs6000.opt (maltivec=le, maltivec=be): Delete.
2859         * config/rs6000/vsx.md (floate<mode>, unsfloatev2di, floato<mode>,
2860         unsfloatov2di, vsignedo_v2df, vsignede_v2df, vunsignedo_v2df,
2861         vunsignede_v2df, vsx_extract_<mode>_p9, *vsx_extract_si,
2862         *vsx_extract_<mode>_p8, *vsx_extract_si_<uns>float_df,
2863         *vsx_extract_si_<uns>float_<mode>, vsx_set_<mode>_p9, vsx_set_v4sf_p9,
2864         *vsx_insert_extract_v4sf_p9, *vsx_insert_extract_v4sf_p9_2, and an
2865         anonymous split): Adjust.
2866         (vsx_mergel_<mode>, vsx_mergeh_<mode>): Remove -maltivec=be support.
2867         (vsx_xxspltd_<mode>, extract4b, insert4b): Adjust.
2868
2869 2018-05-10  Eric Botcazou  <ebotcazou@adacore.com>
2870
2871         * configure.ac (gcc_gxx_include_dir_add_sysroot): Set it to 1 only
2872         when --with-gxx-include-dir is also specified.
2873         * configure: Regenerate.
2874
2875 2018-05-09  Jim Wilson  <jimw@sifive.com>
2876
2877         PR target/84797
2878         * config.gcc (riscv*-*-*): Handle --with-multilib-list.
2879         * config/riscv/t-withmultilib: New.
2880         * config/riscv/withmultilib.h: New.
2881         * doc/install.texi: Document RISC-V --with-multilib-list support.
2882
2883 2018-05-09  Richard Biener  <rguenther@suse.de>
2884
2885         * tree-vect-slp.c (vect_bb_slp_scalar_cost): Fill a cost
2886         vector.
2887         (vect_bb_vectorization_profitable_p): Adjust.  Compute
2888         actual scalar cost using the cost vector and the add_stmt_cost
2889         machinery.
2890
2891 2018-05-09  Segher Boessenkool  <segher@kernel.crashing.org>
2892
2893         PR rtl-optimization/85645
2894         * config/rs6000/rs6000.c (rs6000_emit_prologue_components): Put a SET
2895         in the REG_CFA_REGISTER note for LR, don't leave it empty.
2896
2897 2018-05-09  Segher Boessenkool  <segher@kernel.crashing.org>
2898
2899         PR rtl-optimization/85645
2900         * shrink-wrap.c (spread_components): Return a boolean saying if
2901         anything was changed.
2902         (try_shrink_wrapping_separate): Iterate spread_components until
2903         nothing changes anymore.
2904
2905 2018-05-09  Segher Boessenkool  <segher@kernel.crashing.org>
2906
2907         PR rtl-optimization/85645
2908         * regrename.c (build_def_use): Also kill the chains that include the
2909         destination of a REG_CFA_REGISTER note.
2910
2911 2018-05-09  Segher Boessenkool  <segher@kernel.crashing.org>
2912
2913         PR rtl-optimization/85645
2914         *  regcprop.c (copyprop_hardreg_forward_1): Don't propagate into an
2915         insn that has a REG_CFA_REGISTER note.
2916
2917 2018-05-09  Richard Sandiford  <richard.sandiford@linaro.org>
2918
2919         * cfgexpand.c (expand_clobber): New function.
2920         (expand_gimple_stmt_1): Use it.
2921         * tree-vect-stmts.c (vect_clobber_variable): New function,
2922         split out from...
2923         (vectorizable_simd_clone_call): ...here.
2924         (vectorizable_store): Emit a clobber either side of an
2925         IFN_STORE_LANES sequence.
2926         (vectorizable_load): Emit a clobber after an IFN_LOAD_LANES sequence.
2927
2928 2018-05-09  Tom de Vries  <tom@codesourcery.com>
2929
2930         PR target/85626
2931         * config/nvptx/nvptx.md (define_insn "trap", define_insn "trap_if_true")
2932         (define_insn "trap_if_false"): Add exit after trap.
2933
2934 2018-05-09  Eric Botcazou  <ebotcazou@adacore.com>
2935
2936         PR rtl-optimization/85638
2937         * bb-reorder.c: Include common/common-target.h.
2938         (create_forwarder_block): New function extracted from...
2939         (fix_up_crossing_landing_pad): ...here.  Rename into...
2940         (dw2_fix_up_crossing_landing_pad): ...this.
2941         (sjlj_fix_up_crossing_landing_pad): New function.
2942         (find_rarely_executed_basic_blocks_and_crossing_edges): In SJLJ mode,
2943         call sjlj_fix_up_crossing_landing_pad if there are incoming EH edges
2944         from both partitions and exit the loop after one iteration.
2945
2946 2018-05-08  Kelvin Nilsen  <kelvin@gcc.gnu.org>
2947
2948         Revert:
2949         * doc/extend.texi (PowerPC Built-in Functions): Rename this
2950         subsection.
2951         (Basic PowerPC Built-in Functions): The new name of the
2952         subsection previously known as "PowerPC Built-in Functions".
2953         (Basic PowerPC Built-in Functions Available on all Configurations):
2954         New subsubsection.
2955         (Basic PowerPC Built-in Functions Available on ISA 2.05): New
2956         subsubsection.
2957         (Basic PowerPC Built-in Functions Available on ISA 2.06): New
2958         subsubsection.
2959         (Basic PowerPC Built-in Functions Available on ISA 2.07): New
2960         subsubsection.
2961         (Basic PowerPC Built-in Functions Available on ISA 3.0): New
2962         subsubsection.
2963
2964 2018-05-08  Jim Wilson  <jimw@sifive.com>
2965
2966         * config/riscv/linux.h (MUSL_ABI_SUFFIX): Delete unnecessary backslash.
2967         (LD_EMUL_SUFFIX): New.
2968         (LINK_SPEC): Use it.
2969
2970 2018-05-08  Kelvin Nilsen  <kelvin@gcc.gnu.org>
2971
2972         * doc/extend.texi (PowerPC Built-in Functions): Rename this
2973         subsection.
2974         (Basic PowerPC Built-in Functions): The new name of the
2975         subsection previously known as "PowerPC Built-in Functions".
2976         (Basic PowerPC Built-in Functions Available on all Configurations):
2977         New subsubsection.
2978         (Basic PowerPC Built-in Functions Available on ISA 2.05): New
2979         subsubsection.
2980         (Basic PowerPC Built-in Functions Available on ISA 2.06): New
2981         subsubsection.
2982         (Basic PowerPC Built-in Functions Available on ISA 2.07): New
2983         subsubsection.
2984         (Basic PowerPC Built-in Functions Available on ISA 3.0): New
2985         subsubsection.
2986
2987 2018-05-08  Jakub Jelinek  <jakub@redhat.com>
2988
2989         PR target/85683
2990         * config/i386/i386.md: Add peepholes for mem {+,-,&,|,^}= x; mem != 0
2991         after cmpelim optimization.
2992
2993 2018-05-08  Olga Makhotina  <olga.makhotina@intel.com>
2994
2995         * config.gcc: Support "goldmont".
2996         * config/i386/driver-i386.c (host_detect_local_cpu): Detect "goldmont".
2997         * config/i386/i386-c.c (ix86_target_macros_internal): Handle
2998         PROCESSOR_GOLDMONT.
2999         * config/i386/i386.c (m_GOLDMONT): Define.
3000         (processor_target_table): Add "goldmont".
3001         (PTA_GOLDMONT): Define.
3002         (ix86_lea_outperforms): Add TARGET_GOLDMONT.
3003         (get_builtin_code_for_version): Handle PROCESSOR_GOLDMONT.
3004         (fold_builtin_cpu): Add M_INTEL_GOLDMONT.
3005         (fold_builtin_cpu): Add "goldmont".
3006         (ix86_add_stmt_cost): Add TARGET_GOLDMONT.
3007         (ix86_option_override_internal): Add "goldmont".
3008         * config/i386/i386.h (processor_costs): Define TARGET_GOLDMONT.
3009         (processor_type): Add PROCESSOR_GOLDMONT.
3010         * config/i386/i386.md: Add CPU "glm".
3011         * config/i386/glm.md: New file.
3012         * config/i386/x86-tune.def: Add m_GOLDMONT.
3013         * doc/invoke.texi: Add goldmont as x86 -march=/-mtune= CPU type.
3014
3015 2018-05-08  Jakub Jelinek  <jakub@redhat.com>
3016
3017         PR target/85572
3018         * config/i386/i386.c (ix86_expand_sse2_abs): Handle E_V2DImode and
3019         E_V4DImode.
3020         * config/i386/sse.md (abs<mode>2): Use VI_AVX2 iterator instead of
3021         VI1248_AVX512VL_AVX512BW.  Handle V2DImode and V4DImode if not
3022         TARGET_AVX512VL using ix86_expand_sse2_abs.  Formatting fixes.
3023
3024         PR target/85317
3025         * config/i386/i386.c (ix86_fold_builtin): Handle
3026         IX86_BUILTIN_{,P}MOVMSK{PS,PD,B}{,128,256}.
3027
3028         PR target/85480
3029         * config/i386/sse.md (ssequaterinsnmode): New mode attribute.
3030         (*<extract_type>_vinsert<shuffletype><extract_suf>_0): New pattern.
3031
3032 2018-05-08  Richard Earnshaw  <rearnsha@arm.com>
3033
3034         PR target/85658
3035         * config/arm/parsecpu.awk (check_cpu): Fix operator precedence.
3036         (check_arch): Likewise.
3037         (check_fpu): Return the result rather than printing it.
3038         (end arch): Fix operator precedence.
3039         (end cpu): Likewise.
3040         (END): Print the result from check_fpu.
3041
3042 2018-05-08  Richard Sandiford  <richard.sandiford@linaro.org>
3043             Alan Hayward  <alan.hayward@arm.com>
3044             David Sherwood  <david.sherwood@arm.com>
3045
3046         * config/aarch64/aarch64-sve.md (*pred_cmp<cmp_op><mode>_combine)
3047         (*pred_cmp<cmp_op><mode>, *fcm<cmp_op><mode>_and_combine)
3048         (*fcmuo<mode>_and_combine, *fcm<cmp_op><mode>_and)
3049         (*fcmuo<mode>_and): New patterns.
3050
3051 2018-05-08  Richard Sandiford  <richard.sandiford@linaro.org>
3052
3053         * config/aarch64/iterators.md (UNSPEC_COND_LO, UNSPEC_COND_LS)
3054         (UNSPEC_COND_HI, UNSPEC_COND_HS, UNSPEC_COND_UO): Delete.
3055         (SVE_INT_CMP, SVE_FP_CMP): New code iterators.
3056         (cmp_op, sve_imm_con): New code attributes.
3057         (SVE_COND_INT_CMP, imm_con): Delete.
3058         (cmp_op): Remove above unspecs from int attribute.
3059         * config/aarch64/aarch64-sve.md (*vec_cmp<cmp_op>_<mode>): Rename
3060         to...
3061         (*cmp<cmp_op><mode>): ...this.  Use UNSPEC_MERGE_PTRUE instead of
3062         comparison-specific unspecs.
3063         (*vec_cmp<cmp_op>_<mode>_ptest): Rename to...
3064         (*cmp<cmp_op><mode>_ptest): ...this and adjust likewise.
3065         (*vec_cmp<cmp_op>_<mode>_cc): Rename to...
3066         (*cmp<cmp_op><mode>_cc): ...this and adjust likewise.
3067         (*vec_fcm<cmp_op><mode>): Rename to...
3068         (*fcm<cmp_op><mode>): ...this and adjust likewise.
3069         (*vec_fcmuo<mode>): Rename to...
3070         (*fcmuo<mode>): ...this and adjust likewise.
3071         (*pred_fcm<cmp_op><mode>): New pattern.
3072         * config/aarch64/aarch64.c (aarch64_emit_unop, aarch64_emit_binop)
3073         (aarch64_emit_sve_ptrue_op, aarch64_emit_sve_ptrue_op_cc): New
3074         functions.
3075         (aarch64_unspec_cond_code): Remove handling of LTU, GTU, LEU, GEU
3076         and UNORDERED.
3077         (aarch64_gen_unspec_cond, aarch64_emit_unspec_cond): Delete.
3078         (aarch64_emit_sve_predicated_cond): New function.
3079         (aarch64_expand_sve_vec_cmp_int): Use aarch64_emit_sve_ptrue_op_cc.
3080         (aarch64_emit_unspec_cond_or): Replace with...
3081         (aarch64_emit_sve_or_conds): ...this new function.  Use
3082         aarch64_emit_sve_ptrue_op for the individual comparisons and
3083         aarch64_emit_binop to OR them together.
3084         (aarch64_emit_inverted_unspec_cond): Replace with...
3085         (aarch64_emit_sve_inverted_cond): ...this new function.  Use
3086         aarch64_emit_sve_ptrue_op for the comparison and
3087         aarch64_emit_unop to invert the result.
3088         (aarch64_expand_sve_vec_cmp_float): Update after the above
3089         changes.  Use aarch64_emit_sve_ptrue_op for native comparisons.
3090
3091 2018-05-07  Nathan Sidwell  <nathan@acm.org>
3092
3093         * doc/invoke.texi (C++ Dialect Options): Remove -ffor-scope.
3094         * doc/extend.texi (Deprecated Features): Remove -fno-for-scope
3095         (Backwards Compatibility): Likewise.
3096
3097 2018-05-07  Luis Machado  <luis.machado@linaro.org>
3098
3099         PR bootstrap/85681
3100         Revert:
3101         2018-05-07  Luis Machado  <luis.machado@linaro.org>
3102
3103         * config/aarch64/aarch64-protos.h (cpu_prefetch_tune)
3104         <prefetch_dynamic_strides>: New const bool field.
3105         * config/aarch64/aarch64.c (generic_prefetch_tune): Update to include
3106         prefetch_dynamic_strides.
3107         (exynosm1_prefetch_tune): Likewise.
3108         (thunderxt88_prefetch_tune): Likewise.
3109         (thunderx_prefetch_tune): Likewise.
3110         (thunderx2t99_prefetch_tune): Likewise.
3111         (qdf24xx_prefetch_tune): Likewise. Set prefetch_dynamic_strides
3112         to false.
3113         (aarch64_override_options_internal): Update to set
3114         PARAM_PREFETCH_DYNAMIC_STRIDES.
3115         * doc/invoke.texi (prefetch-dynamic-strides): Document new option.
3116         * params.def (PARAM_PREFETCH_DYNAMIC_STRIDES): New.
3117         * params.h (PARAM_PREFETCH_DYNAMIC_STRIDES): Define.
3118         * tree-ssa-loop-prefetch.c (should_issue_prefetch_p): Account for
3119         prefetch-dynamic-strides setting.
3120
3121         2018-05-07  Luis Machado  <luis.machado@linaro.org>
3122
3123         * config/aarch64/aarch64-protos.h (cpu_prefetch_tune)
3124         <minimum_stride>: New const int field.
3125         * config/aarch64/aarch64.c (generic_prefetch_tune): Update to include
3126         minimum_stride field.
3127         (exynosm1_prefetch_tune): Likewise.
3128         (thunderxt88_prefetch_tune): Likewise.
3129         (thunderx_prefetch_tune): Likewise.
3130         (thunderx2t99_prefetch_tune): Likewise.
3131         (qdf24xx_prefetch_tune): Likewise. Set minimum_stride to 2048.
3132         (aarch64_override_options_internal): Update to set
3133         PARAM_PREFETCH_MINIMUM_STRIDE.
3134         * doc/invoke.texi (prefetch-minimum-stride): Document new option.
3135         * params.def (PARAM_PREFETCH_MINIMUM_STRIDE): New.
3136         * params.h (PARAM_PREFETCH_MINIMUM_STRIDE): Define.
3137         * tree-ssa-loop-prefetch.c (should_issue_prefetch_p): Return false if
3138         stride is constant and is below the minimum stride threshold.
3139
3140 2018-05-07  Luis Machado  <luis.machado@linaro.org>
3141
3142         * config/aarch64/aarch64.c (qdf24xx_prefetch_tune) <l2_cache_size>: Set
3143         to 512.
3144
3145 2018-05-07  Luis Machado  <luis.machado@linaro.org>
3146
3147         * config/aarch64/aarch64-protos.h (cpu_prefetch_tune)
3148         <prefetch_dynamic_strides>: New const bool field.
3149         * config/aarch64/aarch64.c (generic_prefetch_tune): Update to include
3150         prefetch_dynamic_strides.
3151         (exynosm1_prefetch_tune): Likewise.
3152         (thunderxt88_prefetch_tune): Likewise.
3153         (thunderx_prefetch_tune): Likewise.
3154         (thunderx2t99_prefetch_tune): Likewise.
3155         (qdf24xx_prefetch_tune): Likewise. Set prefetch_dynamic_strides
3156         to false.
3157         (aarch64_override_options_internal): Update to set
3158         PARAM_PREFETCH_DYNAMIC_STRIDES.
3159         * doc/invoke.texi (prefetch-dynamic-strides): Document new option.
3160         * params.def (PARAM_PREFETCH_DYNAMIC_STRIDES): New.
3161         * params.h (PARAM_PREFETCH_DYNAMIC_STRIDES): Define.
3162         * tree-ssa-loop-prefetch.c (should_issue_prefetch_p): Account for
3163         prefetch-dynamic-strides setting.
3164
3165 2018-05-07  Luis Machado  <luis.machado@linaro.org>
3166
3167         * config/aarch64/aarch64-protos.h (cpu_prefetch_tune)
3168         <minimum_stride>: New const int field.
3169         * config/aarch64/aarch64.c (generic_prefetch_tune): Update to include
3170         minimum_stride field.
3171         (exynosm1_prefetch_tune): Likewise.
3172         (thunderxt88_prefetch_tune): Likewise.
3173         (thunderx_prefetch_tune): Likewise.
3174         (thunderx2t99_prefetch_tune): Likewise.
3175         (qdf24xx_prefetch_tune): Likewise. Set minimum_stride to 2048.
3176         (aarch64_override_options_internal): Update to set
3177         PARAM_PREFETCH_MINIMUM_STRIDE.
3178         * doc/invoke.texi (prefetch-minimum-stride): Document new option.
3179         * params.def (PARAM_PREFETCH_MINIMUM_STRIDE): New.
3180         * params.h (PARAM_PREFETCH_MINIMUM_STRIDE): Define.
3181         * tree-ssa-loop-prefetch.c (should_issue_prefetch_p): Return false if
3182         stride is constant and is below the minimum stride threshold.
3183
3184 2018-05-06  Jakub Jelinek  <jakub@redhat.com>
3185
3186         PR c++/85659
3187         * cfgexpand.c (expand_asm_stmt): Don't create a temporary if
3188         the type is addressable.  Don't force op into register if it has
3189         BLKmode.
3190
3191 2018-05-05  Roland McGrath  <mcgrathr@google.com>
3192
3193         PR other/77609
3194         * varasm.c (default_section_type_flags): Set SECTION_NOTYPE for
3195         any section for which we don't know a specific type it should have,
3196         regardless of name.  Previously this was done only for the exact
3197         names ".init_array", ".fini_array", and ".preinit_array".
3198         (default_elf_asm_named_section): Add comment about
3199         relationship with default_section_type_flags and SECTION_NOTYPE.
3200         (get_section): Don't consider it a type conflict if one side has
3201         SECTION_NOTYPE and the other doesn't, as long as neither has the
3202         SECTION_BSS et al used in the default_section_type_flags logic.
3203
3204 2018-05-05  Tom de Vries  <tom@codesourcery.com>
3205
3206         PR target/85653
3207         * config/nvptx/nvptx.c (WORKAROUND_PTXJIT_BUG_3): Define.
3208         (workaround_barsyncs): New function.
3209         (nvptx_reorg): Use workaround_barsyncs.
3210         * config/nvptx/nvptx.md (define_c_enum "unspecv"): Add UNSPECV_MEMBAR.
3211         (define_expand "nvptx_membar_cta"): New define_expand.
3212         (define_insn "*nvptx_membar_cta"): New insn.
3213
3214 2018-05-04  Pekka Jääskeläinen  <pekka.jaaskelainen@parmance.com>
3215
3216         * brig-builtins.def: Add consts to ptrs etc. in BRIG builtin defs.
3217         To improve optimization opportunities.
3218         * builtin-types.def: The new needed builtin types for the above.
3219
3220 2018-05-04  Richard Biener  <rguenther@suse.de>
3221
3222         * bb-reorder.c (sanitize_hot_paths): Release hot_bbs_to_check.
3223         * gimple-ssa-store-merging.c
3224         (imm_store_chain_info::output_merged_store): Remove redundant create,
3225         release split_store vector contents on failure.
3226         * tree-vect-slp.c (vect_schedule_slp_instance): Avoid leaking
3227         scalar stmt vector on cache hit.
3228
3229 2018-05-04  Segher Boessenkool  <segher@kernel.crashing.org>
3230
3231         * common/config/rs6000/rs6000-common.c (rs6000_handle_option): Remove
3232         Xilinx FP support.
3233         * config.gcc (powerpc-xilinx-eabi*): Remove.
3234         * config/rs6000/predicates.md (easy_fp_constant): Remove Xilinx FP
3235         support.
3236         (fusion_addis_mem_combo_load): Ditto.
3237         * config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Remove Xilinx
3238         FP support.
3239         (rs6000_cpu_cpp_builtins): Ditto.
3240         * config/rs6000/rs6000-linux.c
3241         (rs6000_linux_float_exceptions_rounding_supported_p): Ditto.
3242         * config/rs6000/rs6000-opts.h (enum fpu_type_t): Delete.
3243         * config/rs6000/rs6000.c (rs6000_debug_reg_global): Remove Xilinx FP
3244         support.
3245         (rs6000_setup_reg_addr_masks): Ditto.
3246         (rs6000_init_hard_regno_mode_ok): Ditto.
3247         (rs6000_option_override_internal): Ditto.
3248         (legitimate_lo_sum_address_p): Ditto.
3249         (rs6000_legitimize_address): Ditto.
3250         (rs6000_legitimize_reload_address): Ditto.
3251         (rs6000_legitimate_address_p): Ditto.
3252         (abi_v4_pass_in_fpr): Ditto.
3253         (setup_incoming_varargs): Ditto.
3254         (rs6000_gimplify_va_arg): Ditto.
3255         (rs6000_split_multireg_move): Ditto.
3256         (rs6000_savres_strategy): Ditto.
3257         (rs6000_emit_prologue_components): Ditto.
3258         (rs6000_emit_epilogue_components): Ditto.
3259         (rs6000_emit_prologue): Ditto.
3260         (rs6000_emit_epilogue): Ditto.
3261         (rs6000_elf_file_end): Ditto.
3262         (rs6000_function_value): Ditto.
3263         (rs6000_libcall_value): Ditto.
3264         * config/rs6000/rs6000.h: Ditto.
3265         (TARGET_MINMAX_SF, TARGET_MINMAX_DF): Delete, merge to ...
3266         (TARGET_MINMAX): ... this.  New.
3267         (TARGET_SF_FPR, TARGET_DF_FPR, TARGET_SF_INSN, TARGET_DF_INSN): Delete.
3268         * config/rs6000/rs6000.md: Remove Xilinx FP support.
3269         (*movsi_internal1_single): Delete.
3270         * config/rs6000/rs6000.opt (msingle-float, mdouble-float, msimple-fpu,
3271         mfpu=, mxilinx-fpu): Delete.
3272         * config/rs6000/singlefp.h: Delete.
3273         * config/rs6000/sysv4.h: Remove Xilinx FP support.
3274         * config/rs6000/t-rs6000: Ditto.
3275         * config/rs6000/t-xilinx: Delete.
3276         * gcc/config/rs6000/titan.md: Adjust for fp_type removal.
3277         * gcc/config/rs6000/vsx.md: Remove Xilinx FP support.
3278         (VStype_simple): Delete.
3279         (VSfptype_simple, VSfptype_mul, VSfptype_div, VSfptype_sqrt): Delete.
3280         * config/rs6000/xfpu.h: Delete.
3281         * config/rs6000/xfpu.md: Delete.
3282         * config/rs6000/xilinx.h: Delete.
3283         * config/rs6000/xilinx.opt: Delete.
3284         * gcc/doc/invoke.texi (RS/6000 and PowerPC Options): Remove
3285         -msingle-float, -mdouble-float, -msimple-fpu, -mfpu=, and -mxilinx-fpu.
3286
3287 2018-05-04  Tom de Vries  <tom@codesourcery.com>
3288
3289         PR libgomp/85639
3290         * builtins.c (expand_builtin_goacc_parlevel_id_size): Handle null target
3291         if ignore == 0.
3292
3293 2018-05-04  Richard Biener  <rguenther@suse.de>
3294
3295         PR middle-end/85627
3296         * tree-complex.c (update_complex_assignment): We are always in SSA form.
3297         (expand_complex_div_wide): Likewise.
3298         (expand_complex_operations_1): Likewise.
3299         (expand_complex_libcall): Preserve EH info of the original stmt.
3300         (tree_lower_complex): Handle removed blocks.
3301         * tree.c (build_common_builtin_nodes): Do not set ECF_NOTRHOW
3302         on complex multiplication and division libcall builtins.
3303
3304 2018-05-04  Richard Biener  <rguenther@suse.de>
3305
3306         PR middle-end/85574
3307         * fold-const.c (negate_expr_p): Restrict negation of operand
3308         zero of a division to when we know that can happen without
3309         overflow.
3310         (fold_negate_expr_1): Likewise.
3311
3312 2018-05-04  Jakub Jelinek  <jakub@redhat.com>
3313
3314         PR libstdc++/85466
3315         * real.h (real_nextafter): Declare.
3316         * real.c (real_nextafter): New function.
3317         * fold-const-call.c (fold_const_nextafter): New function.
3318         (fold_const_call_sss): Call it for CASE_CFN_NEXTAFTER and
3319         CASE_CFN_NEXTTOWARD.
3320         (fold_const_call_1): For CASE_CFN_NEXTTOWARD call fold_const_call_sss
3321         even when arg1_mode is different from arg0_mode.
3322
3323 2018-05-03  Nathan Sidwell  <nathan@acm.org>
3324
3325         * doc/extend.texi (Deprecated Features): Remove
3326         -ffriend-injection.
3327         (Backwards Compatibility): Likewise.
3328         * doc/invoke.texi (C++ Language Options): Likewise.
3329         (C++ Dialect Options): Likewise.
3330
3331 2018-05-03  Jakub Jelinek  <jakub@redhat.com>
3332
3333         PR target/85530
3334         * config/i386/avx512fintrin.h (_mm512_mullox_epi64,
3335         _mm512_mask_mullox_epi64): New intrinsics.
3336
3337 2018-05-03  Tom de Vries  <tom@codesourcery.com>
3338
3339         PR testsuite/85106
3340         * doc/sourcebuild.texi (Commands for use in dg-final, Scan optimization
3341         dump files): Add offload-tree.
3342
3343 2018-05-03  Richard Biener  <rguenther@suse.de>
3344
3345         PR tree-optimization/85615
3346         * tree-ssa-threadupdate.c (thread_block_1): Only allow exits
3347         to loops not nested in BBs loop father to avoid creating multi-entry
3348         loops.
3349
3350 2018-05-03  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
3351
3352         PR tree-optimization/70291
3353         * tree-complex.c (expand_complex_libcall): Add type, inplace_p
3354         arguments.  Change return type to tree.  Emit libcall as a new
3355         statement rather than replacing existing one when inplace_p is true.
3356         (expand_complex_multiplication_components): New function.
3357         (expand_complex_multiplication): Expand floating-point complex
3358         multiplication using the above.
3359         (expand_complex_division): Rename inner_type parameter to type.
3360         Update expand_complex_libcall call-site.
3361         (expand_complex_operations_1): Update expand_complex_multiplication
3362         and expand_complex_division call-sites.
3363
3364 2018-05-02  Jakub Jelinek  <jakub@redhat.com>
3365
3366         PR target/85582
3367         * config/i386/i386.md (*ashl<dwi>3_doubleword_mask,
3368         *ashl<dwi>3_doubleword_mask_1, *<shift_insn><dwi>3_doubleword_mask,
3369         *<shift_insn><dwi>3_doubleword_mask_1): In condition require that
3370         the highest significant bit of the shift count mask is clear.  In
3371         check whether and[sq]i3 is needed verify that all significant bits
3372         of the shift count other than the highest are set.
3373
3374 2018-05-02  Tom de Vries  <tom@codesourcery.com>
3375
3376         PR libgomp/82428
3377         * builtins.def (DEF_GOACC_BUILTIN_ONLY): Define.
3378         * omp-builtins.def (BUILT_IN_GOACC_PARLEVEL_ID)
3379         (BUILT_IN_GOACC_PARLEVEL_SIZE): New builtin.
3380         * builtins.c (expand_builtin_goacc_parlevel_id_size): New function.
3381         (expand_builtin): Call expand_builtin_goacc_parlevel_id_size.
3382         * doc/extend.texi (Other Builtins): Add __builtin_goacc_parlevel_id and
3383         __builtin_goacc_parlevel_size.
3384
3385 2018-05-02  Richard Biener  <rguenther@suse.de>
3386
3387         PR tree-optimization/85597
3388         * tree-vect-stmts.c (vectorizable_operation): For ternary SLP
3389         do not use split vect_get_vec_defs call but call vect_get_slp_defs
3390         directly.
3391
3392 2018-05-02  Tom de Vries  <tom@codesourcery.com>
3393
3394         PR testsuite/85106
3395         * doc/sourcebuild.texi (Commands for use in dg-final, Scan optimization
3396         dump files): Add ltrans-tree.
3397
3398 2018-05-02  Tom de Vries  <tom@codesourcery.com>
3399
3400         PR testsuite/85106
3401         * doc/sourcebuild.texi (Commands for use in dg-final, Scan optimization
3402         dump files): Add wpa-ipa.
3403
3404 2018-05-02  Segher Boessenkool  <segher@kernel.crashing.org>
3405
3406         * config.gcc (powerpc*-*-*): Remove paired.h.  Unsupport the
3407         powerpc*-*-linux*paired* target.
3408         * config/rs6000/750cl.h: Delete.
3409         * config/rs6000/paired.h: Delete.
3410         * config/rs6000/paired.md: Delete.
3411         * config/rs6000/predicates.md (easy_vector_constant): Remove paired
3412         float support.
3413         * config/rs6000/rs6000-builtin.def: Remove paired float support.
3414         * config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Update
3415         comment.  Remove paired float support.
3416         * config/rs6000/rs6000-modes.def: Remove V2SF and V2SI.
3417         * config/rs6000/rs6000-opts.h (enum rs6000_vector): Delete
3418         VECTOR_PAIRED.
3419         * config/rs6000/rs6000-protos.h (paired_expand_vector_init,
3420         paired_emit_vector_cond_expr, paired_expand_vector_move): Delete
3421         declarations.
3422         * config/rs6000/rs6000.c: Remove paired float support.
3423         (paired_expand_vector_init, paired_expand_vector_move,
3424         paired_emit_vector_compare, paired_emit_vector_cond_expr,
3425         (paired_expand_lv_builtin, paired_expand_stv_builtin,
3426         paired_expand_builtin, paired_expand_predicate_builtin,
3427         paired_init_builtins): Delete.
3428         * config/rs6000/rs6000.h: Remove paired float support.
3429         * config/rs6000/rs6000.md: Remove paired float support.
3430         (move_from_CR_ov_bit): Delete.
3431         * config/rs6000/rs6000.opt (mpaired): Delete.
3432         * config/rs6000/t-rs6000: Remove paired.md from MD_INCLUDES.
3433         * doc/invoke.texi (RS/6000 and PowerPC Options): Delete -mpaired.
3434
3435 2018-05-02  Richard Biener  <rguenther@suse.de>
3436
3437         PR middle-end/85567
3438         * gimplify.c (gimplify_save_expr): When in SSA form allow
3439         SAVE_EXPRs to compute to SSA vars.
3440
3441 2018-05-02  Jakub Jelinek  <jakub@redhat.com>
3442
3443         PR target/85582
3444         * config/i386/i386.md (*ashl<dwi>3_doubleword_mask,
3445         *ashl<dwi>3_doubleword_mask_1, *<shift_insn><dwi>3_doubleword_mask,
3446         *<shift_insn><dwi>3_doubleword_mask_1): If and[sq]i3 is needed, don't
3447         clobber operands[2], instead use a new pseudo.  Formatting fixes.
3448
3449 2018-05-02  Richard Sandiford  <richard.sandiford@linaro.org>
3450
3451         PR tree-optimization/85586
3452         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence): Only
3453         exit early for statements in the same group if the accesses are
3454         not strided.
3455
3456 2018-05-02  Tom de Vries  <tom@codesourcery.com>
3457
3458         PR lto/85451
3459         * lto-wrapper.c (compile_offload_image): Add "could not find mkoffload"
3460         error message.
3461
3462 2018-05-01  Marc Glisse  <marc.glisse@inria.fr>
3463
3464         PR tree-optimization/85143
3465         * match.pd (A<B&A<C): Extend to BIT_IOR_EXPR.
3466
3467 2018-05-01  Tom de Vries  <tom@codesourcery.com>
3468
3469         PR lto/85451
3470         * config/nvptx/mkoffload.c (main): Suggest using -B in "offload compiler
3471         not found" error message.
3472
3473 2018-05-01  Tom de Vries  <tom@codesourcery.com>
3474
3475         PR other/83786
3476         * vec.h (VEC_ORDERED_REMOVE_IF, VEC_ORDERED_REMOVE_IF_FROM_TO): Define.
3477         * vec.c (test_ordered_remove_if): New function.
3478         (vec_c_tests): Call test_ordered_remove_if.
3479         * dwarf2cfi.c (connect_traces): Use VEC_ORDERED_REMOVE_IF_FROM_TO.
3480         * lto-streamer-out.c (prune_offload_funcs): Use VEC_ORDERED_REMOVE_IF.
3481         * tree-vect-patterns.c (vect_pattern_recog_1): Use
3482         VEC_ORDERED_REMOVE_IF.
3483
3484 2018-05-01  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
3485
3486         PR tree-optimization/82665
3487         * vr-values.c (vr_values::extract_range_from_binary_expr): Handle
3488         pointer subtraction where arguments come from a memchr call.
3489
3490 2018-05-01  Jakub Jelinek  <jakub@redhat.com>
3491
3492         * configure.ac (LD_AS_NEEDED_OPTION, LD_NO_AS_NEEDED_OPTION): Use
3493         --push-state --as-needed and --pop-state instead of --as-needed and
3494         --no-as-needed if ld supports it.
3495         * configure: Regenerated.
3496
3497         PR web/85578
3498         * doc/install.texi2html: Replace _002d with - and _002a with * in
3499         generated html files using sed.
3500
3501 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
3502
3503         PR c++/85523
3504         * gcc-rich-location.c (blank_line_before_p): New function.
3505         (use_new_line): New function.
3506         (gcc_rich_location::add_fixit_insert_formatted): New function.
3507         * gcc-rich-location.h
3508         (gcc_rich_location::add_fixit_insert_formatted): New function.
3509
3510 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
3511
3512         * selftest.c (assert_streq): Rename "expected" and "actual" to
3513         "val1" and "val2".  Extend NULL-handling to cover both inputs
3514         symmetrically, while still requiring both to be non-NULL for a pass.
3515         * selftest.h (assert_streq): Rename "expected" and "actual" to
3516         "val1" and "val2".
3517         (ASSERT_EQ): Likewise.
3518         (ASSERT_EQ_AT): Likewise.
3519         (ASSERT_KNOWN_EQ): Likewise.
3520         (ASSERT_KNOWN_EQ_AT): Likewise.
3521         (ASSERT_NE): Likewise.
3522         (ASSERT_MAYBE_NE): Likewise.
3523         (ASSERT_MAYBE_NE_AT): Likewise.
3524         (ASSERT_STREQ): Likewise.  Clarify that both must be non-NULL for
3525         the assertion to pass.
3526         (ASSERT_STREQ_AT): Likewise.
3527
3528 2018-04-30  Jonathan Wakely  <jwakely@redhat.com>
3529
3530         * doc/invoke.texi (-fpie, -fPIE): Fix grammar and clarify
3531         interaction with -pie.
3532
3533 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
3534
3535         * selftest.h: Fix alphabetization of per-source-file selftest
3536         declarations.
3537
3538 2018-04-30  Jason Merrill  <jason@redhat.com>
3539
3540         PR c++/61982 - dead stores to destroyed objects.
3541         * gimplify.c (gimplify_modify_expr): Simplify complex lvalue on LHS
3542         of clobber.
3543
3544 2018-04-30  Jason Merrill  <jason@redhat.com>
3545
3546         * tree.c (build_clobber): New.
3547         * tree.h: Declare it.
3548         * gimplify.c (gimplify_bind_expr, gimplify_target_expr): Use it.
3549
3550 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
3551
3552         * diagnostic-show-locus.c (layout::layout): Update for
3553         location_get_source_line returning a char_span.
3554         (struct char_span): Move to input.h.
3555         (struct correction): Update for fields in char_span becoming
3556         private.
3557         (struct source_line): Update for location_get_source_line
3558         returning a char_span.
3559         (layout::print_line): Likewise.
3560         * edit-context.c (edited_file::print_content): Likewise.
3561         (edited_file::print_diff_hunk): Likewise.
3562         (edited_file::print_run_of_changed_lines): Likewise.
3563         (edited_file::get_num_lines): Likewise.
3564         (edited_line::edited_line): Likewise.
3565         * final.c (asm_show_source): Likewise.
3566         * input.c (location_get_source_line): Convert return type
3567         from const char * to char_span, losing the final "line_len"
3568         param.
3569         (dump_location_info): Update for the above.
3570         (get_substring_ranges_for_loc): Likewise.  Use a char_span
3571         when handling the literal within the line.
3572         (test_reading_source_line): Update for location_get_source_line
3573         returning a char_span.
3574         * input.h (class char_span): Move here from
3575         diagnostic-show-locus.c, converting from a struct to a class.
3576         Make data members private.
3577         (char_span::operator bool): New.
3578         (char_span::length): New.
3579         (char_span::get_buffer): New.
3580         (char_span::operator[]): New.
3581         (char_span::subspan): Make const.
3582         (char_span::xstrdup): New.
3583         (location_get_source_line): Convert return type from const char *
3584         to char_span, losing the final "line_size" param.
3585
3586 2018-04-30  Jan Hubicka  <jh@suse.cz>
3587
3588         * lto-wrapper.c (ltrans_priorities): New static var.
3589         (cmp_priority): New.
3590         (run_gcc): Read priorities and if doing parallel build order
3591         the Makefile by them.
3592
3593 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
3594
3595         * input.h (builtins_location_check): Convert to a STATIC_ASSERT.
3596
3597 2018-04-30  Richard Biener  <rguenther@suse.de>
3598
3599         * tree-cfg.c (verify_address): Remove base argument, add
3600         flag whether to check TREE_ADDRESSABLE and do that.
3601         (verify_expr): Remove.
3602         (verify_types_in_gimple_reference): Add pieces from verify_expr.
3603         (verify_gimple_assign_single): Likewise.
3604         (verify_gimple_switch): Likewise.
3605         (verify_expr_location_1): Dereference tp once.  Add (disabled)
3606         piece from verify_expr.
3607         (verify_gimple_in_cfg): Do not call verify_expr on all ops.
3608
3609 2018-04-30  Claudiu Zissulescu  <claziss@synopsys.com>
3610
3611         * config/arc/linux.h (CLEAR_INSN_CACHE): Define.
3612
3613 2018-04-30  Claudiu Zissulescu  <claziss@synopsys.com>
3614
3615         * config/arc/arc-protos.h (prepare_extend_operands): Remove.
3616         (small_data_pattern): Likewise.
3617         (arc_rewrite_small_data): Likewise.
3618         * config/arc/arc.c (LEGITIMATE_SMALL_DATA_OFFSET_P): Remove.
3619         (LEGITIMATE_SMALL_DATA_ADDRESS_P): Likewise.
3620         (get_symbol_alignment): New function.
3621         (legitimate_small_data_address_p): Likewise.
3622         (legitimate_scaled_address): Update, call
3623         legitimate_small_data_address_p.
3624         (output_sdata): New static variable.
3625         (arc_print_operand): Update how we handle small data operands.
3626         (arc_print_operand_address): Likewise.
3627         (arc_legitimate_address_p): Update, use
3628         legitimate_small_data_address_p.
3629         (arc_rewrite_small_data_p): Remove.
3630         (arc_rewrite_small_data_1): Likewise.
3631         (arc_rewrite_small_data): Likewise.
3632         (small_data_pattern): Likewise.
3633         (compact_sda_memory_operand): Update to use
3634         legitimate_small_data_address_p and get_symbol_alignment.
3635         (prepare_move_operands): Don't rewite sdata pattern.
3636         (prepare_extend_operands): Remove.
3637         * config/arc/arc.md (zero_extendqihi2): Don't rewrite sdata
3638         pattern.
3639         (zero_extendqisi2): Likewise.
3640         (zero_extendhisi2): Likewise.
3641         (extendqihi2): Likewise.
3642         (extendqisi2): Likewise.
3643         (extendhisi2): Likewise.
3644         (addsi3): Likewise.
3645         (subsi3): Likewise.
3646         (andsi3): Likewise.
3647         * config/arc/constraints.md (Usd): Change it to memory constraint.
3648
3649 2018-04-30  Claudiu Zissulescu  <claziss@synopsys.com>
3650
3651         * config/arc/arc.c (arc_split_move): Allow signed 6-bit constants
3652         as source of std instructions.
3653         * config/arc/arc.md (movsi_insn): Update pattern predicate to
3654         allow 6-bit constants as source for store instructions.
3655         (movdi_insn): Update instruction pattern to allow 6-bit constants
3656         as source for store instructions.
3657
3658 2018-04-30  Jonathan Wakely  <jwakely@redhat.com>
3659
3660         * doc/invoke.texi (-fdebug-types-section): Fix grammar.
3661
3662 2018-04-30  Nathan Sidwell  <nathan@acm.org>
3663             Sandra Loosemore <sandra@codesourcery.com>
3664
3665         * dumpfile.c (dump_open): Allow '-' for stdout.
3666         * doc/invoke.texi (Developer Options): Document dump filename
3667         determination early.  Document stdin/stdout selection.
3668
3669 2018-04-30 Andrew Sadek  <andrew.sadek.se@gmail.com>
3670
3671         Microblaze Target: PIC data text relative
3672
3673         * config/microblaze/microblaze.opt: add new option -mpic-data-text-rel.
3674         * config/microblaze/microblaze-protos.h (microblaze_constant_address_p):
3675         Add declaration.
3676         * gcc/config/microblaze/microblaze.h (microblaze_constant_address_p):
3677         CONSTANT_ADDRESS_P definition to microblaze_constant_address_p.
3678         * config/microblaze/microblaze.c (TARGET_PIC_DATA_TEXT_REL):
3679         New addressing mode for data-text relative position indepenedent code.
3680         (microblaze_classify_unspec): add 'UNSPEC_TEXT' case ->
3681         'ADDRESS_SYMBOLIC_TXT_REL'.
3682         (microblaze_classify_address): Add handling for UNSPEC + CONST_INT.
3683         (microblaze_legitimate_pic_operand): Exclude function calls from
3684         pic operands in case of TARGET_PIC_DATA_TEXT_REL option.
3685         (microblaze_legitimize_address): Generate 'UNSPEC_TEXT' for all possible
3686         addresses cases.
3687         (microblaze_address_insns): Add 'ADDRESS_SYMBOLIC_TXT_REL' case.
3688         (print_operand): Add 'ADDRESS_SYMBOLIC_TXT_REL' case.
3689         (print_operand_address): Add 'ADDRESS_SYMBOLIC_TXT_REL' case + handling
3690         for 'address + offset'.
3691         (microblaze_expand_prologue): Add new function prologue call for
3692         'r20' assignation.
3693         (microblaze_asm_generate_pic_addr_dif_vec): Override new target hook
3694         'TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC' to disable address diff vector
3695         table in case of TARGET_PIC_DATA_TEXT_REL.
3696         (expand_pic_symbol_ref): Add handling for 'UNSPEC_TEXT'.
3697         * gcc/config/microblaze/microblaze.md (TARGET_PIC_DATA_TEXT_REL):
3698         Add new macros 'UNSPEC_TEXT',
3699         'UNSPEC_SET_TEXT' + add rule for setting r20 in function prologue
3700         + exclude function calls from 'UNSPEC_PLT' in case of data text
3701         relative mode.
3702         * doc/tm.texi.in (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC): Add
3703         new target hook for generating address diff vector tables in case of
3704         flag_pic.
3705         * doc/tm.texi : Regenerate.
3706         * stmt.c (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC): Append new condition
3707         'targetm.asm_out.generate_pic_addr_diff_vec' to flag_pic in case
3708         of addr diff vector generation.
3709         * target.def (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC): Add
3710         target hook definition.
3711         * targhooks.h, gcc/targhooks.c (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC):
3712         Add default function for generate_pic_addr_diff_vec -> flag_pic.
3713         * doc/invoke.texi (Add new pic option): Add new microblaze pic
3714         option for data text relative.
3715
3716 2018-04-30  Richard Biener  <rguenther@suse.de>
3717
3718         * tree-chrec.h (evolution_function_is_constant_p): Remove
3719         redundant check.
3720         * tree-cfg.c (tree_node_can_be_shared): Re-order checks.
3721
3722 2018-04-30  Richard Biener  <rguenther@suse.de>
3723
3724         PR bootstrap/85571
3725         * dwarf2out.c (gen_producer_string): Ignore -fchecking[=].
3726
3727 2018-04-30  Richard Biener  <rguenther@suse.de>
3728
3729         PR tree-optimization/28364
3730         PR tree-optimization/85275
3731         * tree-ssa-loop-ch.c (ch_base::copy_headers): Stop after
3732         copying first exit test.
3733
3734 2018-04-28  Mark Wielaard  <mark@klomp.org>
3735
3736         * dwarf2out.c (dwarf2out_finish): Add .debug_addr table header for
3737         dwarf_version >= 5.
3738         (dwarf_AT): Handle DW_AT_addr_base.
3739         (add_top_level_skeleton_die_attrs): Use dwarf_AT for DW_AT_addr_base.
3740
3741 2018-04-28  Uros Bizjak  <ubizjak@gmail.com>
3742
3743         PR target/84431
3744         * config/i386/i386.md (*ashl<dwi>3_doubleword_mask): New pattern.
3745         (*ashl<dwi>3_doubleword_mask_1): Ditto.
3746         (*<shift_insn><dwi>3_doubleword_mask): Ditto.
3747         (*<shift_insn><dwi>3_doubleword_mask_1): Ditto.
3748
3749 2018-04-28  Richard Biener  <rguenther@suse.de>
3750
3751         * tree-cfg.c (verify_gimple_phi): Take a gphi * argument.
3752         (verify_gimple_in_cfg): Rename visited_stmts to visited_throwing_stmts
3753         to reflect use.  Only add interesting stmts.
3754
3755 2018-04-27  Martin Jambor  <mjambor@suse.cz>
3756
3757         PR ipa/85549
3758         * ipa-cp.c (find_aggregate_values_for_callers_subset): Make sure
3759         the jump function allows for passing through aggregate values.
3760
3761 2018-04-27  David Malcolm  <dmalcolm@redhat.com>
3762
3763         * input.h (in_system_header_at): Convert from macro to inline
3764         function.
3765         (from_macro_expansion_at): Likewise.
3766         (from_macro_definition_at): Likewise.
3767
3768 2018-04-27  Jeff Law  <law@redhat.com>
3769
3770         * config.gcc: Mark tile* targets as deprecated/obsolete.
3771
3772 2018-04-27  Richard Biener  <rguenther@suse.de>
3773
3774         * config/aarch64/aarch64.c: Simplify ap.__stack advance and
3775         fix for ILP32.
3776
3777 2018-04-27  Richard Biener  <rguenther@suse.de>
3778
3779         * tree-cfg.c (verify_expr): Make dead code hit gcc_unreachable.
3780
3781 2018-04-27  Uros Bizjak  <ubizjak@gmail.com>
3782
3783         * config/i386/i386.md (*movti_internal): Substitute Ye constraint
3784         with Yd constraint. Set "preferred_for_speed" attribute from
3785         TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC for alternatives
3786         with Yd constraint.
3787         (*movdi_internal): Ditto.
3788         (movti_interunit splitters): Remove
3789         TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC from insn condition.
3790         (movdi_interunit splitters): Ditto.
3791         * config/i386/constraints.md (Ye): Remove.
3792         (Yd): Do not depend on TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC.
3793
3794 2018-04-27  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
3795
3796         PR target/85512
3797         * config/aarch64/constraints.md (Usg): Limit to 31.
3798         (Usj): Limit to 63.
3799
3800 2018-04-27  Jakub Jelinek  <jakub@redhat.com>
3801
3802         PR tree-optimization/85529
3803         * tree-ssa-reassoc.c (optimize_range_tests_var_bound): Add FIRST_BB
3804         argument.  Don't call get_nonzero_bits if opcode is ERROR_MARK_NODE,
3805         rhs2 def stmt's bb is dominated by first_bb and it isn't an obvious
3806         zero extension or masking of the MSB bit.
3807         (optimize_range_tests): Add FIRST_BB argument, pass it through
3808         to optimize_range_tests_var_bound.
3809         (maybe_optimize_range_tests, reassociate_bb): Adjust
3810         optimize_range_tests callers.
3811
3812 2018-04-26  Richard Biener  <rguenther@suse.de>
3813             Jakub Jelinek  <jakub@redhat.com>
3814
3815         * cgraph.h (symbol_table): Just declare debug method here.
3816         * symtab.c (symbol_table::debug): Define.
3817
3818 2018-04-26  Eric Botcazou  <ebotcazou@adacore.com>
3819
3820         * loop-invariant.c (may_assign_reg_p): Return false for frame pointer.
3821
3822 2018-04-26  Uros Bizjak  <ubizjak@gmail.com>
3823
3824         * config/i386/i386.md ("isa" attribute): Add x64_sse2.
3825         ("enabled" attribute): Handle x64_sse2 "isa" attribute.
3826         (*movdi_internal): Substitute Yi and Yj constraint with x
3827         and Ym and Yn constraint with y constraint.  Update "isa"
3828         attribute and set "preferred_for_speed" attribute from
3829         TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC for updated alternatives.
3830         (*movsi_internal): Ditto.
3831         (*movdf_internal): Ditto.
3832         (*movsf_internal): Ditto.
3833         (*zero_extendsidi2): Ditto.
3834         * config/i386/sse.md (vec_set<mode>_0): Ditto.
3835         (sse2_loadld): Ditto.
3836         (*vec_extract<ssevecmodelower>_0): Ditto.
3837         (*vec_extractv4si_0_zext_sse4): Ditto.
3838         (vec_concatv2di): Ditto.
3839         (*vec_dup<mode>): Ditto.
3840         * config/i386/mmx.md (*mov<mode>_internal): Ditto.
3841         * config/i386/constraints.md (Yi): Remove.
3842         (Yj): Remove.
3843         (Ym): Remove.
3844         (Yn): Remove.
3845
3846 2018-04-26  Nathan Sidwell  <nathan@acm.org>
3847
3848         * dumpfile.c (dump_open): New.
3849         (dump_open_alternate_stream, dump_start, dump_begin): Call it.
3850         (dump_finish): Detect stdio/stderr by value not name.
3851
3852 2018-04-26  Jonathan Wakely  <jwakely@redhat.com>
3853
3854         * doc/invoke.texi (-Wreturn-type): Document default status for C++.
3855
3856 2018-04-26  Tom de Vries  <tom@codesourcery.com>
3857
3858         PR target/84952
3859         * config/nvptx/nvptx.c (verify_neutering_jumps)
3860         (verify_neutering_labels): New function
3861         (nvptx_single): Use verify_neutering_jumps and verify_neutering_labels.
3862
3863 2018-04-26  Tom de Vries  <tom@codesourcery.com>
3864
3865         PR target/84025
3866         * config/nvptx/nvptx.c (needs_neutering_p): New function.
3867         (nvptx_single): Use needs_neutering_p to skip over insns that do not
3868         need neutering.
3869
3870 2018-04-26  Richard Biener <rguenther@suse.de>
3871             Tom de Vries  <tom@codesourcery.com>
3872
3873         PR lto/85422
3874         * lto-streamer-out.c (output_function): Fixup loops if required to match
3875         discovery done in the reader.
3876
3877 2018-04-26  Richard Biener  <rguenther@suse.de>
3878
3879         PR tree-optimization/85116
3880         * tree-ssa-loop-ch.c (do_while_loop_p): A do-while loop should
3881         have a loop exit from the single latch predecessor.  Remove
3882         case of header with just condition.
3883         (ch_base::copy_headers): Exclude infinite loops from any
3884         processing.
3885         (pass_ch::execute): Record exits.
3886
3887 2018-04-26  Richard Biener  <rguenther@suse.de>
3888
3889         * tree-vect-data-refs.c (vect_get_data_access_cost): Get
3890         prologue cost vector and pass it to vect_get_load_cost.
3891         (vect_get_peeling_costs_all_drs): Likewise.
3892         (vect_peeling_hash_get_lowest_cost): Likewise.
3893         (vect_enhance_data_refs_alignment): Likewise.
3894
3895 2018-04-26  Richard Biener  <rguenther@suse.de>
3896
3897         PR middle-end/85450
3898         * tree-cfg.c (verify_gimple_assign_unary): Restore proper
3899         checking of integer<->pointer conversions.
3900         * omp-expand.c (expand_omp_for_static_nochunk): Avoid
3901         sign-/zero-extending pointer types.
3902         (expand_omp_for_static_chunk): Likewise.
3903
3904 2018-03-22  Hans-Peter Nilsson  <hp@axis.com>
3905             Jean Lee  <xiaoyur347@gmail.com>
3906
3907         * config/mips/mips.c (mips_asan_shadow_offset): New function.
3908         (TARGET_ASAN_SHADOW_OFFSET): Define.
3909         * config/mips/mips.h (FRAME_GROWS_DOWNWARD): Augment to also be
3910         true for -fsanitize=address.
3911
3912 2018-04-25  Mark Wielaard  <mark@klomp.org>
3913
3914         * dwarf2out.c (file_info_cmp): Sort longer dir prefixes before
3915         shorter ones.
3916
3917 2018-04-25  Jakub Jelinek  <jakub@redhat.com>
3918
3919         * config/i386/i386.md (*x86_mov<mode>cc_0_m1): Use type "alu1" rather
3920         than "alu", remove explicit "memory" and "imm_disp" attributes.
3921         (*x86_mov<mode>cc_0_m1_se, *x86_mov<mode>cc_0_m1_neg): Likewise.
3922
3923         PR middle-end/85414
3924         * simplify-rtx.c (simplify_unary_operation_1) <case SIGN_EXTEND,
3925         case ZERO_EXTEND>: Pass SUBREG_REG (op) rather than op to
3926         gen_lowpart_no_emit.
3927
3928 2018-04-25  Sebastian Peryt  <sebastian.peryt@intel.com>
3929
3930         PR target/85473
3931         * config/i386/i386.c (ix86_expand_builtin): Change memory
3932         operand to XI, extend p0 to Pmode.
3933         * config/i386/i386.md: Change unspec volatile and operand
3934         1 mode to XI, change operand 0 mode to P.
3935
3936 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
3937
3938         * config/nds32/nds32-predicates.c (nds32_can_use_bclr_p): Mask with
3939         GET_MODE_MASK before any checking.
3940         (nds32_can_use_bset_p): Likewise.
3941         (nds32_can_use_btgl_p): Likewise.
3942
3943 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
3944
3945         * config/nds32/nds32-doubleword.md: New define_split pattern for
3946         illegal register number.
3947
3948 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
3949
3950         * config/nds32/nds32.c (nds32_print_operand): Set op_value ealier.
3951
3952 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
3953
3954         * config/nds32/nds32.h (ASM_APP_ON): Add missing newline character.
3955
3956 2018-04-25  Richard Biener  <rguenther@suse.de>
3957
3958         * lto-streamer.h (LTO_major_version): Bump to 8.
3959
3960 2018-04-25  Jakub Jelinek  <jakub@redhat.com>
3961
3962         * BASE-VER: Set to 9.0.0.
3963
3964 2018-04-24  Segher Boessenkool  <segher@kernel.crashing.org>
3965
3966         * config/rs6000/rs6000.c (init_float128_ieee): Fix spelling mistakes
3967         in __abskf2 and __powikf2.
3968
3969 2018-04-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
3970
3971         PR target/85512
3972         * config/aarch64/constraints.md (Usg, Usj): New constraints.
3973         * config/aarch64/iterators.md (cmode_simd): New mode attribute.
3974         * config/aarch64/aarch64.md (*aarch64_ashr_sisd_or_int_<mode>3):
3975         Use the above on operand 2.  Reindent.
3976         (*aarch64_lshr_sisd_or_int_<mode>3): Likewise.
3977
3978 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
3979
3980         PR target/85485
3981         * common/config/i386/i386-common.c (ix86_handle_option): Don't
3982         handle OPT_mcet.
3983         * config/i386/i386.opt (mcet): Removed.
3984         * doc/install.texi: Remove -mcet documentation.
3985         * doc/invoke.texi: Likewise.
3986
3987 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
3988
3989         PR target/85485
3990         * doc/install.texi: Remove -mcet from bootstrap-cet.
3991
3992 2018-04-24  Jakub Jelinek  <jakub@redhat.com>
3993
3994         PR target/85511
3995         * config/i386/i386.c (ix86_init_mmx_sse_builtins): Don't define
3996         __builtin_ia32_readeflags_u32 and __builtin_ia32_writeeflags_u32
3997         if TARGET_64BIT.
3998
3999         PR target/85503
4000         * config/rs6000/rs6000-p8swap.c (const_load_sequence_p): Punt if
4001         const_vector is not CONST_VECTOR or SYMBOL_REF for a constant pool
4002         containing a CONST_VECTOR.
4003
4004 2018-04-24  Cesar Philippidis  <cesar@codesourcery.com>
4005
4006         * doc/install.texi: Update newlib dependency for nvptx.
4007
4008 2018-04-24  Jakub Jelinek  <jakub@redhat.com>
4009
4010         PR target/85508
4011         * config/i386/i386.c (ix86_expand_vector_init_one_var): Use UINTVAL
4012         instead of INTVAL when shifting x left.
4013
4014 2018-04-24  Andreas Krebbel  <krebbel@linux.ibm.com>
4015
4016         PR tree-optimization/85478
4017         * tree-vect-loop.c (vect_analyze_loop_2): Do not call
4018         vect_grouped_store_supported for single element vectors.
4019
4020 2018-04-24  Richard Biener  <rguenther@suse.de>
4021
4022         PR target/85491
4023         * config/i386/i386.c (ix86_add_stmt_cost): Restrict strided
4024         load cost increase to the case of non-constant step.
4025
4026 2018-04-24  Jakub Jelinek  <jakub@redhat.com>
4027
4028         PR target/84828
4029         * reg-stack.c (move_for_stack_reg): Don't fail assertion about dead
4030         destination if any_malformed_asm.
4031
4032 2018-04-23  Eric Botcazou  <ebotcazou@adacore.com>
4033
4034         PR middle-end/85496
4035         * expr.c (store_field): In the bitfield case, if the value comes from
4036         a function call and is returned in registers by means of a PARALLEL,
4037         do not change the mode of the temporary unless BLKmode and VOIDmode.
4038
4039 2018-04-23  Andrey Belevantsev  <abel@ispras.ru>
4040
4041         PR rtl-optimization/85423
4042         * sel-sched-ir.c (has_dependence_note_mem_dep): Only discard
4043         dependencies to debug insns when the previous insn is non-debug.
4044
4045 2018-04-23  Claudiu Zissulescu  <claziss@synopsys.com>
4046
4047         * config/arc/arc.md ("vunspec"): Delete it, unify all the unspec
4048         enums into a single definition.
4049         (fls): Fix predicates and printing.
4050         (seti): Likewise.
4051
4052 2018-04-23  Claudiu Zissulescu  <claziss@synopsys.com>
4053
4054         * config/arc/arc-protos.h (check_if_valid_sleep_operand): Remove.
4055         * config/arc/arc.c (arc_expand_builtin): Sleep accepts registers
4056         and short u6 immediate.
4057         (check_if_valid_sleep_operand): Remove.
4058         * config/arc/arc.md (Sleep): Accepts registers and u6 immediates.
4059
4060 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
4061
4062         * config/nds32/nds32.c (nds32_compute_stack_frame): Consider
4063         flag_always_save_lp condition.
4064         * config/nds32/nds32.opt (malways-save-lp): New option.
4065
4066 2018-04-22  Shiva Chen  <shiva0217@gmail.com>
4067
4068         * config/nds32/nds32-protos.h (nds32_use_load_post_increment): Declare.
4069         * config/nds32/nds32.c (nds32_use_load_post_increment): New.
4070         * config/nds32/nds32.h
4071         (USE_LOAD_POST_INCREMENT, USE_LOAD_POST_DECREMENT): Define.
4072         (USE_STORE_POST_INCREMENT, USE_STORE_POST_DECREMENT): Define.
4073
4074 2018-04-22  Shiva Chen  <shiva0217@gmail.com>
4075
4076         * config/nds32/nds32-protos.h (nds32_ls_333_p): Remove.
4077         * config/nds32/nds32.c (nds32_ls_333_p): Remove.
4078
4079 2018-04-22  Shiva Chen  <shiva0217@gmail.com>
4080             Chung-Ju Wu  <jasonwucj@gmail.com>
4081
4082         * config/nds32/nds32-protos.h (nds32_case_vector_shorten_mode):
4083         Declare.
4084         * config/nds32/nds32.c (nds32_case_vector_shorten_mode): New function.
4085         * config/nds32/nds32.h (CASE_VECTOR_SHORTEN_MODE): Modify.
4086
4087 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
4088
4089         * config/nds32/nds32.c (nds32_compute_stack_frame): Fix wrong value.
4090
4091 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
4092
4093         * config/nds32/nds32-protos.h (nds32_data_alignment,
4094         nds32_local_alignment): Declare.
4095         * config/nds32/nds32.c (nds32_data_alignment, nds32_constant_alignment,
4096         nds32_local_alignment): New functions.
4097         (TARGET_CONSTANT_ALIGNMENT): Define.
4098         * config/nds32/nds32.h (DATA_ALIGNMENT, LOCAL_ALIGNMENT): Define.
4099
4100 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
4101
4102         * config/nds32/nds32.c
4103         (TARGET_HARD_REGNO_MODE_OK): Move to the bottom of file.
4104         (TARGET_MODES_TIEABLE_P): Likewise.
4105
4106 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
4107
4108         * config/nds32/nds32.c (nds32_asm_file_start): Display optimization
4109         level Ofast and Og.
4110
4111 2018-04-22  Monk Chiang  <sh.chiang04@gmail.com>
4112             Chung-Ju Wu  <jasonwucj@gmail.com>
4113
4114         * config/nds32/constants.md (unspec_volatile_element): Add enum values
4115         for unaligned access.
4116         * config/nds32/nds32-intrinsic.c: Implementation of expanding
4117         unaligned access.
4118         * config/nds32/nds32-intrinsic.md: Likewise.
4119         * config/nds32/nds32_intrinsic.h: Likewise.
4120         * config/nds32/nds32.h (nds32_builtins): Likewise.
4121         * config/nds32/nds32.opt (munaligned-access): New option.
4122         * config/nds32/nds32.c (nds32_asm_file_start): Display
4123         flag_unaligned_access status.
4124
4125 2018-04-20  Kito Cheng  <kito.cheng@gmail.com>
4126
4127         * config/riscv/elf.h (LINK_SPEC): Pass --no-relax if
4128         -mno-relax is present.
4129         * config/riscv/linux.h (LINK_SPEC): Ditto.
4130
4131 2018-04-20  Martin Sebor  <msebor@redhat.com>
4132
4133         PR c/85365
4134         * gimple-fold.c (gimple_fold_builtin_strcpy): Suppress -Wrestrict
4135         for null pointers.
4136         (gimple_fold_builtin_stxcpy_chk): Same.
4137         * gimple-ssa-warn-restrict.c (check_bounds_or_overlap): Same.
4138
4139 2018-04-20  Michael Meissner  <meissner@linux.ibm.com>
4140
4141         PR target/85456
4142         * config/rs6000/rs6000.c (init_float128_ieee): Add support to call
4143         __powikf2 when long double is IEEE 128-bit.
4144
4145 2018-04-20  Kito Cheng  <kito.cheng@gmail.com>
4146
4147         * config/riscv/riscv.c (riscv_first_stack_step): Round up min
4148         step to make sure stack always aligned.
4149
4150 2018-04-20  Carl Love  <cel@us.ibm.com>
4151
4152         PR target/83402
4153         * config/rs6000/rs6000-c.c (rs6000_gimple_fold_builtin): Add
4154         size check for arg0.
4155
4156 2018-04-20  Nathan Sidwell  <nathan@codesourcery.com>
4157             Tom de Vries  <tom@codesourcery.com>
4158
4159         PR target/85445
4160         * config/nvptx/nvptx.c (nvptx_emit_forking, nvptx_emit_joining):
4161         Emit insns for calls too.
4162         (nvptx_find_par): Always look for worker-level predecessor insn.
4163         (nvptx_propagate): Add is_call parm, return bool.  Copy frame for
4164         calls.
4165         (nvptx_vpropagate, nvptx_wpropagate): Adjust.
4166         (nvptx_process_pars): Propagate frames for calls.
4167
4168 2018-04-20  H.J. Lu  <hongjiu.lu@intel.com>
4169
4170         PR target/85469
4171         * common/config/i386/i386-common.c (OPTION_MASK_ISA_IBT_SET):
4172         Removed.
4173         (OPTION_MASK_ISA_IBT_UNSET): Likewise.
4174         (ix86_handle_option): Don't handle OPT_mibt.
4175         * config/i386/cet.h: Check __CET__ instead of __IBT__ and
4176         __SHSTK__.
4177         * config/i386/driver-i386.c (host_detect_local_cpu): Remove
4178         has_ibt and ibt.
4179         * config/i386/i386-c.c (ix86_target_macros_internal): Don't
4180         check OPTION_MASK_ISA_IBT nor flag_cf_protection.
4181         (ix86_target_macros): Define __CET__ with flag_cf_protection
4182         for -fcf-protection.
4183         * config/i386/i386.c (isa2_opts): Remove -mibt.
4184         * config/i386/i386.h (TARGET_IBT): Removed.
4185         (TARGET_IBT_P): Likewise.
4186         (ix86_valid_target_attribute_inner_p): Don't check OPT_mibt.
4187         * config/i386/i386.md (nop_endbr): Don't check TARGET_IBT.
4188         * config/i386/i386.opt (mcet): Update help message.
4189         (mshstk): Likewise.
4190         (mibt): Removed.
4191         * doc/invoke.texi: Remove -mibt.  Document __CET__.  Document
4192         -mcet as an alias for -mshstk.
4193
4194 2018-04-20  Richard Biener <rguenther@suse.de>
4195
4196         PR middle-end/85475
4197         * match.pd ((X * CST) * Y -> (X * Y) * CST): Avoid exponential
4198         complexity by forcing a single use of the multiply operand.
4199
4200 2018-04-20  Martin Jambor  <mjambor@suse.cz>
4201
4202         ipa/85449
4203         * ipa-cp.c (cgraph_edge_brings_value_p): Move check for self-feeding
4204         recursion dependency to only apply to non-clones.
4205
4206 2018-04-20  Martin Jambor  <mjambor@suse.cz>
4207
4208         ipa/85447
4209         * ipa-cp.c (create_specialized_node): Check that clones of
4210         self-recursive edges exist during IPA-CP.
4211
4212 2018-04-19  Toon Moene  <toon@moene.org>
4213
4214         * doc/invoke.texi: Add -floop-unroll-and-jam to options enabled
4215         by -O3.
4216
4217 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
4218
4219         PR tree-optimization/85467
4220         * fold-const.c (fold_ternary_loc) <case BIT_FIELD_REF>: Use
4221         VECTOR_TYPE_P macro.  If type is vector type, VIEW_CONVERT_EXPR the
4222         VECTOR_CST element to type.
4223
4224 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
4225
4226         PR target/85397
4227         * config/i386/i386.h (STACK_SAVEAREA_MODE): New.
4228         * config/i386/i386.md (builtin_setjmp_setup): Removed.
4229         (builtin_longjmp): Likewise.
4230         (save_stack_nonlocal): New pattern.
4231         (restore_stack_nonlocal): Likewise.
4232
4233 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
4234
4235         PR target/85404
4236         * config/i386/cet.c (file_end_indicate_exec_stack_and_cet):
4237         Replace ASM_OUTPUT_LABEL with fprintf.
4238
4239 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
4240
4241         PR target/85417
4242         * config/i386/cet.c (file_end_indicate_exec_stack_and_cet):
4243         Check flag_cf_protection instead of TARGET_IBT and TARGET_SHSTK.
4244         * config/i386/i386-c.c (ix86_target_macros_internal): Also
4245         define __IBT__ and __SHSTK__ for -fcf-protection.
4246         * config/i386/i386.c (pass_insert_endbranch::gate): Don't check
4247         TARGET_IBT.
4248         (ix86_trampoline_init): Likewise.
4249         (x86_output_mi_thunk): Likewise.
4250         (ix86_notrack_prefixed_insn_p): Likewise.
4251         (ix86_option_override_internal): Don't disallow -fcf-protection.
4252         * config/i386/i386.md (rdssp<mode>): Also enable for
4253         -fcf-protection.
4254         (incssp<mode>): Likewise.
4255         (nop_endbr): Likewise.
4256         * config/i386/i386.opt (mcet): Change help message to built-in
4257         functions only.
4258         (mibt): Likewise.
4259         (mshstk): Likewise.
4260         * doc/invoke.texi: Remove -mcet, -mibt and -mshstk condition
4261         on -fcf-protection.  Change -mcet, -mibt and -mshstk to only
4262         enable CET built-in functions.
4263
4264 2018-04-19  Sebastian Peryt  <sebastian.peryt@intel.com>
4265
4266         * common/config/i386/i386-common.c
4267         (OPTION_MASK_ISA_MOVDIRI_SET, OPTION_MASK_ISA_MOVDIR64B_SET,
4268         OPTION_MASK_ISA_MOVDIRI_UNSET,
4269         OPTION_MASK_ISA_MOVDIR64B_UNSET): New defines.
4270         (ix86_handle_option): Handle -mmovdiri and -mmovdir64b.
4271         * config.gcc (movdirintrin.h): New header.
4272         * config/i386/cpuid.h (bit_MOVDIRI,
4273         bit_MOVDIR64B): New bits.
4274         * config/i386/driver-i386.c (host_detect_local_cpu): Detect -mmovdiri
4275         and -mmvodir64b.
4276         * config/i386/i386-builtin-types.def ((VOID, PUNSIGNED, UNSIGNED),
4277         (VOID, PVOID, PCVOID)): New function types.
4278         * config/i386/i386-builtin.def (__builtin_ia32_directstoreu_u32,
4279         __builtin_ia32_directstoreu_u64,
4280         __builtin_ia32_movdir64b): New builtins.
4281         * config/i386/i386-c.c (__MOVDIRI__, __MOVDIR64B__): New.
4282         * config/i386/i386.c (ix86_target_string): Added -mmovdir64b
4283         and -mmovdiri.
4284         (ix86_valid_target_attribute_inner_p): Ditto.
4285         (ix86_expand_special_args_builtin): Added VOID_FTYPE_PUNSIGNED_UNSIGNED
4286         and VOID_FTYPE_PUNSIGNED_UNSIGNED.
4287         (ix86_expand_builtin): Expand IX86_BUILTIN_MOVDIR64B.
4288         * config/i386/i386.h (TARGET_MOVDIRI, TARGET_MOVDIRI_P,
4289         TARGET_MOVDIR64B, TARGET_MOVDIR64B_P): New.
4290         * config/i386/i386.md (UNSPECV_MOVDIRI, UNSPECV_MOVDIR64B): New.
4291         (movdiri<mode>, movdir64b_<mode>): New.
4292         * config/i386/i386.opt: Add -mmovdiri and -mmovdir64b.
4293         * config/i386/immintrin.h: Include movdirintrin.h.
4294         * config/i386/movdirintrin.h: New file.
4295         * doc/invoke.texi: Added -mmovdiri and -mmovdir64b.
4296
4297 2018-04-19  Richard Biener  <rguenther@suse.de>
4298
4299         PR middle-end/85455
4300         * cfg.c (clear_bb_flags): When loop state says we have
4301         marked irreducible regions also preserve BB_IRREDUCIBLE_LOOP.
4302
4303 2018-04-19  Richard Biener  <rguenther@suse.de>
4304
4305         PR tree-optimization/84737
4306         * tree-vect-data-refs.c (vect_copy_ref_info): New function
4307         copying restrict info.
4308         (vect_setup_realignment): Use it.
4309         * tree-vectorizer.h (vect_copy_ref_info): Declare.
4310         * tree-vect-stmts.c (vectorizable_store): Copy ref info from
4311         the first DR to all generated stores.
4312         (vectorizable_load): Likewise for loads.
4313
4314 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
4315
4316         PR tree-optimization/85446
4317         * match.pd ((intptr_t) x eq/ne CST to x eq/ne (typeof x) cst): Require
4318         the integral and pointer types to have the same precision.
4319
4320         * doc/install.texi: Document --disable-cet being the default and
4321         --enable-cet=auto.
4322
4323 2018-04-18  Martin Liska  <mliska@suse.cz>
4324
4325         * ipa-devirt.c (odr_subtypes_equivalent_p): Fix GNU coding
4326         style.
4327
4328 2018-04-18  Martin Liska  <mliska@suse.cz>
4329
4330         Revert
4331         2018-03-02  Eric Botcazou  <ebotcazou@adacore.com>
4332
4333         PR ipa/83983
4334         * ipa-devirt.c (odr_subtypes_equivalent_p): Get the ODR type of both
4335         arguments if they are comparable.
4336
4337 2018-04-18  Martin Liska  <mliska@suse.cz>
4338
4339         Revert
4340         2018-03-13  Eric Botcazou  <ebotcazou@adacore.com>
4341
4342         PR lto/84805
4343         * ipa-devirt.c (odr_subtypes_equivalent_p): Do not get the ODR type of
4344         incomplete types.
4345
4346 2018-04-18  H.J. Lu  <hongjiu.lu@intel.com>
4347
4348         PR target/85388
4349         * config/i386/i386.c (ix86_expand_split_stack_prologue): Insert
4350         ENDBR after calling __morestack.
4351
4352 2018-04-18  David Malcolm  <dmalcolm@redhat.com>
4353
4354         PR jit/85384
4355         * configure.ac (gcc-driver-name.h): Honor --with-gcc-major-version
4356         by using gcc_base_ver to generate a gcc_driver_version, and use
4357         it when generating GCC_DRIVER_NAME.
4358         * configure: Regenerate.
4359
4360 2018-04-18  Jakub Jelinek  <jakub@redhat.com>
4361
4362         PR target/81084
4363         * config.gcc: Obsolete powerpc*-*-*spe*.
4364
4365 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
4366
4367         PR debug/84637
4368         * dbxout.c (dbxout_int): Perform negation in unsigned int type.
4369         (stabstr_D): Change type of unum from unsigned int to
4370         unsigned HOST_WIDE_INT.  Perform negation in unsigned HOST_WIDE_INT
4371         type.
4372
4373 2018-04-17  Jim Wilson  <jimw@sifive.com>
4374
4375         PR 84856
4376         * config/riscv/riscv.c (riscv_compute_frame_info): Add calls to
4377         RISCV_STACK_ALIGN when using outgoing_args_size and pretend_args_size.
4378         Set arg_pointer_offset after using pretend_args_size.
4379
4380 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
4381
4382         PR rtl-optimization/85431
4383         * dse.c (record_store): Ignore zero width stores.
4384
4385         PR sanitizer/85230
4386         * asan.c (handle_builtin_stack_restore): Adjust comment.  Emit
4387         __asan_allocas_unpoison call and last_alloca_addr = new_sp before
4388         __builtin_stack_restore rather than after it.
4389         * builtins.c (expand_asan_emit_allocas_unpoison): Pass
4390         arg1 + (virtual_dynamic_stack_rtx - stack_pointer_rtx) as second
4391         argument instead of virtual_dynamic_stack_rtx.
4392
4393 2018-04-17  Kelvin Nilsen  <kelvin@gcc.gnu.org>
4394
4395         * config/rs6000/rs6000-protos.h (rs6000_builtin_is_supported_p):
4396         New prototype.
4397         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
4398         Add note to error message to explain internal mapping of overloaded
4399         built-in function name to non-overloaded built-in function name.
4400         * config/rs6000/rs6000.c (rs6000_builtin_is_supported_p): New
4401         function.
4402
4403 2018-04-17  Michael Meissner  <meissner@linux.vnet.ibm.com>
4404
4405         PR target/85424
4406         * config/rs6000/rs6000.md (pack<mode>): Do not try handle a pack
4407         where the inputs overlap with the output.
4408
4409 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
4410
4411         * config/i386/sse.md (vec_extract_lo_<mode><mask_name>): Add
4412         (=v, v) alternative and explicit "memory" attribute.
4413         (vec_extract_lo_<mode><mask_name>): Likewise.  Also add
4414         "type", "prefix", "prefix_extra", "length_immediate" and "mode"
4415         attributes.
4416         (vec_extract_lo_<mode><mask_name>): Add (=v, v) alternative and use
4417         "sselog1" type instead of "sselog".
4418         (vec_extract_hi_<mode><mask_name>): Use "sselog1" type instead of
4419         "sselog".  Remove explicit "memory" attribute.
4420         (vec_extract_lo_v32hi): Add (=v, v) alternative and explicit "memory",
4421         "type", "prefix", "prefix_extra", "length_immediate" and "mode"
4422         attributes.
4423         (vec_extract_hi_v32hi): Merge all alternatives into one, use
4424         "sselog1" type instead of "sselog".  Remove explicit "memory"
4425         attribute.
4426         (vec_extract_hi_v16hi): Merge each pair of alternatives into one,
4427         use "sselog1" type instead of "sselog".  Remove explicit "memory"
4428         attribute.
4429         (vec_extract_lo_v64qi): Add (=v, v) alternative and explicit "memory",
4430         "type", "prefix", "prefix_extra", "length_immediate" and "mode"
4431         attributes.
4432         (vec_extract_hi_v64qi): Merge all alternatives into one, use
4433         "sselog1" type instead of "sselog".  Remove explicit "memory"
4434         attribute.
4435         (vec_extract_hi_v32qi): Merge each pair of alternatives into one,
4436         use "sselog1" type instead of "sselog".  Remove explicit "memory"
4437         attribute.
4438
4439         PR target/85430
4440         * config/i386/i386.md (*ashlqi3_1_slp): Use alu1 type instead of alu.
4441
4442         PR middle-end/85414
4443         * rtlhooks.c (gen_lowpart_if_possible): Don't call gen_lowpart_SUBREG
4444         on a SUBREG.
4445
4446 2018-04-17  Martin Jambor  <mjambor@suse.cz>
4447
4448         PR ipa/85421
4449         * ipa-cp.c (create_specialized_node): Call
4450         expand_all_artificial_thunks if necessary.
4451
4452 2018-04-17  Martin Liska  <mliska@suse.cz>
4453
4454         PR lto/85405
4455         * ipa-devirt.c (odr_types_equivalent_p): Remove trailing
4456         in message, remote space in between '_G' and '('.
4457
4458 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
4459
4460         PR target/85281
4461         * config/i386/sse.md (reduces<mode><mask_scalar_name>,
4462         avx512f_vmcmp<mode>3<round_saeonly_name>,
4463         avx512f_vmcmp<mode>3_mask<round_saeonly_name>,
4464         avx512f_sgetexp<mode><mask_scalar_name><round_saeonly_scalar_name>,
4465         avx512f_rndscale<mode><round_saeonly_name>,
4466         avx512dq_ranges<mode><mask_scalar_name><round_saeonly_scalar_name>,
4467         avx512f_vgetmant<mode><mask_scalar_name><round_saeonly_scalar_name>):
4468         Use %<iptr>2 instead of %2 for -masm=intel.
4469         (avx512f_vcvtss2usi<round_name>, avx512f_vcvtss2usiq<round_name>,
4470         avx512f_vcvttss2usi<round_saeonly_name>,
4471         avx512f_vcvttss2usiq<round_saeonly_name>): Use %k1 instead of %1 for
4472         -masm=intel.
4473         (avx512f_vcvtsd2usi<round_name>, avx512f_vcvtsd2usiq<round_name>,
4474         avx512f_vcvttsd2usi<round_saeonly_name>,
4475         avx512f_vcvttsd2usiq<round_saeonly_name>, ufloatv2siv2df2<mask_name>):
4476         Use %q1 instead of %1 for -masm=intel.
4477         (avx512f_sfixupimm<mode><sd_maskz_name><round_saeonly_name>,
4478         avx512f_sfixupimm<mode>_mask<round_saeonly_name>): Use %<iptr>3 instead
4479         of %3 for -masm=intel.
4480         (sse2_shufpd_v2df_mask): Fix a typo, change %{6%} to %{%6%} for
4481         -masm=intel.
4482         (*avx512vl_<code>v2div2qi2_store): Use %w0 instead of %0 for
4483         -masm=intel.
4484         (*avx512vl_<code><mode>v4qi2_store): Use %k0 instead of %0 for
4485         -masm=intel.
4486         (avx512vl_<code><mode>v4qi2_mask_store): Use a single pattern with
4487         %k0 and %1 for -masm=intel rather than two patterns, one with %0 and
4488         %g1.
4489         (*avx512vl_<code><mode>v8qi2_store): Use %q0 instead of %0 for
4490         -masm=intel.
4491         (avx512vl_<code><mode>v8qi2_mask_store): Use a single pattern with
4492         %q0 and %1 for -masm=intel rather than two patterns, one with %0 and
4493         %g1 and one with %0 and %1.
4494         (avx512er_vmrcp28<mode><round_saeonly_name>,
4495         avx512er_vmrsqrt28<mode><round_saeonly_name>): Use %<iptr>1 instead of
4496         %1 for -masm=intel.
4497         (avx5124fmaddps_4fmaddps_mask, avx5124fmaddps_4fmaddss_mask,
4498         avx5124fmaddps_4fnmaddps_mask, avx5124fmaddps_4fnmaddss_mask,
4499         avx5124vnniw_vp4dpwssd_mask, avx5124vnniw_vp4dpwssds_mask): Swap order
4500         of %0 and %{%4%} for -masm=intel.
4501         (avx5124fmaddps_4fmaddps_maskz, avx5124fmaddps_4fmaddss_maskz,
4502         avx5124fmaddps_4fnmaddps_maskz, avx5124fmaddps_4fnmaddss_maskz,
4503         avx5124vnniw_vp4dpwssd_maskz, avx5124vnniw_vp4dpwssds_maskz): Swap
4504         order of %0 and %{%5%}%{z%} for -masm=intel.
4505
4506 2018-04-17  Jan Hubicka  <jh@suse.cz>
4507
4508         PR lto/85405
4509         * ipa-devirt.c (odr_types_equivalent_p): Handle bit fields.
4510
4511 2018-04-17  Martin Liska  <mliska@suse.cz>
4512
4513         PR ipa/85329
4514         * multiple_target.c (create_dispatcher_calls): Set apostrophes
4515         for target_clone error message.  Make default implementation
4516         clone to be a local declaration.
4517         (separate_attrs): Add new argument and check for an empty
4518         string.
4519         (expand_target_clones): Handle it.
4520         (ipa_target_clone): Make redirection just for target_clones
4521         functions.
4522
4523 2018-04-16  Cesar Philippidis  <cesar@codesourcery.com>
4524             Tom de Vries  <tom@codesourcery.com>
4525
4526         PR middle-end/84955
4527         * omp-expand.c (expand_oacc_for): Add dummy false branch for
4528         tiled basic blocks without omp continue statements.
4529
4530 2018-04-16  Aaron Sawdey  <acsawdey@linux.ibm.com>
4531
4532         PR target/83660
4533         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Mark
4534         vec_extract expression as having side effects to make sure it gets
4535         a cleanup point.
4536
4537 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
4538
4539         PR target/85403
4540         * config/i386/i386.c (get_builtin_code_for_version): Check
4541         error_mark_node.
4542
4543 2018-04-16  Olga Makhotina  <olga.makhotina@intel.com>
4544
4545         PR target/84331
4546         * gcc/config.gcc: Support "skylake".
4547         * gcc/config/i386/i386-c.c (ix86_target_macros_internal): Handle
4548         PROCESSOR_SKYLAKE.
4549         * gcc/config/i386/i386.c (m_SKYLAKE): Define.
4550         (processor_target_table): Add "skylake".
4551         (ix86_option_override_internal): Add "skylake".
4552         (get_builtin_code_for_version): Handle PROCESSOR_SKYLAKE,
4553         PROCESSOR_CANNONLAKE.
4554         (get_builtin_code_for_version): Fix priority for
4555         PROCESSOR_ICELAKE_CLIENT, PROCESSOR_ICELAKE_SERVER,
4556         PROCESSOR_SKYLAKE-AVX512.
4557         * gcc/config/i386/i386.h (processor_costs): Define TARGET_SKYLAKE.
4558         (processor_type): Add PROCESSOR_SKYLAKE.
4559
4560 2018-04-16  Paolo Carlini  <paolo.carlini@oracle.com>
4561             Jason Merrill  <jason@redhat.com>
4562
4563         PR c++/85112
4564         * convert.c (convert_to_integer_1): Use direct recursion for
4565         enumeral types and types with a precision less than the number
4566         of bits in their mode.
4567
4568 2018-04-16  Julia Koval  <julia.koval@intel.com>
4569
4570         PR target/84413
4571         * config/i386/x86-tune.def (X86_TUNE_SSE_UNALIGNED_LOAD_OPTIMAL,
4572         X86_TUNE_SSE_UNALIGNED_STORE_OPTIMAL): Add m_SKYLAKE_AVX512
4573
4574 2018-04-14  Segher Boessenkool  <segher@kernel.crashing.org>
4575
4576         PR target/85293
4577         * config/rs6000/rs6000.opt (mdirect-move): Make deprecated.
4578         * doc/invoke.texi (RS/6000 and PowerPC Options): Remove -mdirect-move
4579         and -mno-direct-move.
4580
4581 2018-04-13  Paul A. Clarke  <pc@us.ibm.com>
4582
4583         PR target/83402
4584         * config/rs6000/emmintrin.h (_mm_slli_epi{16,32,64}):
4585         Ensure that vec_splat_s32 is only called with 0 <= shift < 16.
4586         Ensure negative shifts result in {0}.
4587
4588 2018-04-13  Vladimir Makarov  <vmakarov@redhat.com>
4589
4590         PR rtl-optimization/79916
4591         * config/rs6000/rs6000.c (rs6000_emit_move): Use assigned hard
4592         regs (if any) to define how to gnerate SD moves when LRA is in
4593         progress.
4594
4595 2018-04-13  Jakub Jelinek  <jakub@redhat.com>
4596
4597         PR rtl-optimization/85393
4598         * except.h (expand_dw2_landing_pad_for_region): Remove declaration.
4599         * except.c (expand_dw2_landing_pad_for_region): Make static.
4600         * bb-reorder.c (fix_up_crossing_landing_pad): In new_bb emit just
4601         a label and unconditional jump to old_bb, rather than
4602         expand_dw2_landing_pad_for_region insn(s) and jump to single_succ
4603         basic block.
4604
4605         PR rtl-optimization/85376
4606         * simplify-rtx.c (simplify_const_unary_operation): For CLZ and CTZ and
4607         zero op0, if C?Z_DEFINED_VALUE_AT_ZERO is false, return NULL_RTX
4608         instead of a specific value.
4609
4610 2018-04-13  Jan Hubicka  <hubicka@ucw.cz>
4611             Bin Cheng  <bin.cheng@arm.com>
4612
4613         PR tree-optimization/82965
4614         PR tree-optimization/83991
4615         * cfgloopanal.c (expected_loop_iterations_unbounded): Add
4616         by_profile_only parameter.
4617         * cfgloopmanip.c (scale_loop_profile): Further scale loop's profile
4618         information if the loop was predicted to iterate too many times.
4619         * cfgloop.h (expected_loop_iterations_unbounded): Update prototype
4620
4621 2018-04-13  Jan Hubicka  <hubicka@ucw.cz>
4622
4623         PR lto/71991
4624         * config/i386/i386.c (ix86_can_inline_p): Allow safe transitions for
4625         always inline.
4626
4627 2018-04-13  Martin Liska  <mliska@suse.cz>
4628             Jakub Jelinek  <jakub@redhat.com>
4629
4630         PR middle-end/81657
4631         * expr.h (enum block_op_methods): Add BLOCK_OP_NO_LIBCALL_RET.
4632         * expr.c (emit_block_move_hints): Handle BLOCK_OP_NO_LIBCALL_RET.
4633         * builtins.c (expand_builtin_memory_copy_args): Use
4634         BLOCK_OP_NO_LIBCALL_RET method for mempcpy with non-ignored target,
4635         handle dest_addr == pc_rtx.
4636
4637 2018-04-12  Segher Boessenkool  <segher@kernel.crashing.org>
4638
4639         PR target/85291
4640         * config/rs6000/rs6000.md (fix_trunc<mode>si2): Use legacy code if
4641         asked to not generate direct moves.
4642         (fix_trunc<mode>si2_stfiwx): Similar.
4643         (fix_trunc<mode>si2_internal): Similar.
4644
4645 2018-04-12  Jakub Jelinek  <jakub@redhat.com>
4646
4647         PR debug/83157
4648         * var-tracking.c (add_stores): Handle STRICT_LOW_PART SET_DEST.
4649         * cselib.c (cselib_record_sets): For STRICT_LOW_PART dest,
4650         lookup if dest in some wider mode is known to be const0_rtx and
4651         if so, record permanent equivalence for it to be ZERO_EXTEND of
4652         the narrower mode destination.
4653
4654 2018-04-12  Cesar Philippidis  <cesar@codesourcery.com>
4655
4656         * lto-streamer-out.c (output_function): Revert 259346.
4657         * omp-expand.c (expand_oacc_for): Likewise.
4658
4659 2018-04-12  Alexander Monakov  <amonakov@ispras.ru>
4660
4661         PR rtl-optimization/85354
4662         * sel-sched-ir.c (sel_init_pipelining): Move cfg_cleanup call...
4663         * sel-sched.c (sel_global_init): ... here.
4664
4665 2018-04-12  Eric Botcazou  <ebotcazou@adacore.com>
4666
4667         PR target/85238
4668         * lto-wrapper.c (debug_objcopy): Open the files in binary mode.
4669         * dwarf2out.c (dwarf2out_early_finish): Do not generate assembly in LTO
4670         mode for PE-COFF targets.
4671         * config/i386/i386-protos.h (i386_pe_asm_lto_start): Declare.
4672         (i386_pe_asm_lto_end): Likewise.
4673         * config/i386/cygming.h (TARGET_ASM_LTO_START): Define.
4674         (TARGET_ASM_LTO_END): Likewise.
4675         * config/i386/winnt.c (saved_debug_info_level): New static variable.
4676         (i386_pe_asm_lto_start): New function.
4677         (i386_pe_asm_lto_end): Likewise.
4678
4679 2018-04-12  Cesar Philippidis  <cesar@codesourcery.com>
4680             Richard Biener  <rguenther@suse.de>
4681
4682         PR middle-end/84955
4683         * lto-streamer-out.c (output_function): Fix CFG loop state before
4684         streaming out.
4685         * omp-expand.c (expand_oacc_for): Handle calls to internal
4686         functions like regular functions.
4687
4688 2018-04-12  Richard Biener  <rguenther@suse.de>
4689
4690         PR lto/85371
4691         * dwarf2out.c (init_sections_and_labels): Use debug_line_section[_label]
4692         for the early LTO debug to properly generate references to it
4693         during DIE emission.  Do not re-use that for the skeleton for
4694         split-dwarf.
4695         (dwarf2out_early_finish): Likewise.
4696
4697 2018-04-12  Jakub Jelinek  <jakub@redhat.com>
4698
4699         PR target/85328
4700         * config/i386/sse.md
4701         (<mask_codefor>avx512dq_vextract<shuffletype>64x2_1<mask_name> split,
4702         <mask_codefor>avx512f_vextract<shuffletype>32x4_1<mask_name> split,
4703         vec_extract_lo_<mode><mask_name> split, vec_extract_lo_v32hi,
4704         vec_extract_lo_v64qi): For non-AVX512VL if input is xmm16+ reg
4705         and output is a reg, avoid creating invalid lowpart subreg, but
4706         instead split into a 512-bit move.  Don't split if not AVX512VL,
4707         input is xmm16+ reg and output is a mem.
4708         (vec_extract_lo_<mode><mask_name>, vec_extract_lo_v32hi,
4709         vec_extract_lo_v64qi): Don't require split if not AVX512VL, input is
4710         xmm16+ reg and output is a mem.
4711
4712 2018-04-12  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
4713
4714         * config/s390/s390.c (s390_output_indirect_thunk_function): Check
4715         also for flag_dwarf2_cfi_asm.
4716
4717 2018-04-12  Jakub Jelinek  <jakub@redhat.com>
4718
4719         PR rtl-optimization/85342
4720         * regcprop.c (copyprop_hardreg_forward_1): Remove replaced array, use
4721         a bool scalar var inside of the loop instead.  Don't try to update
4722         recog_data.operand after failed apply_change_group.
4723
4724 2018-04-12  Tom de Vries  <tom@codesourcery.com>
4725
4726         PR target/85296
4727         * config/nvptx/nvptx.c (flexible_array_member_type_p): New function.
4728         (nvptx_assemble_decl_begin): Add undefined param.  Declare undefined
4729         array with flexible array member as array without given dimension.
4730         (nvptx_assemble_undefined_decl): Set nvptx_assemble_decl_begin call
4731         argument for undefined param to true.
4732
4733 2018-04-11  Aaron Sawdey  <acsawdey@linux.ibm.com>
4734
4735         PR target/85321
4736         * doc/invoke.texi (RS/6000 and PowerPC Options): Document options
4737         -mcall- and -mtraceback=. Remove options -mabi=spe and -mabi=no-spe
4738         from PowerPC section.
4739         * config/rs6000/sysv4.opt (mcall-): Improve help text.
4740         * config/rs6000/rs6000.opt (mblock-compare-inline-limit=): Trim
4741         help text that is too long.
4742         * config/rs6000/rs6000.opt (mblock-compare-inline-loop-limit=): Trim
4743         help text that is too long.
4744         * config/rs6000/rs6000.opt (mstring-compare-inline-limit=): Trim
4745         help text that is too long.
4746
4747 2018-04-11  Uros Bizjak  <ubizjak@gmail.com>
4748
4749         * config/alpha/alpha.md (stack_probe_internal): Rename
4750         from "probe_stack".  Update all callers.
4751
4752 2018-04-11  Alexander Monakov  <amonakov@ispras.ru>
4753
4754         PR rtl-optimization/84566
4755         * sched-deps.c (sched_analyze_insn): Check deps->readonly when invoking
4756         sched_macro_fuse_insns.
4757
4758 2018-04-11  Alexander Monakov  <amonakov@ispras.ru>
4759
4760         PR target/84301
4761         * sched-rgn.c (add_branch_dependences): Move sel_sched_p check here...
4762         (compute_block_dependences): ... from here.
4763
4764 2018-04-11  Jakub Jelinek  <jakub@redhat.com>
4765
4766         PR tree-optimization/85331
4767         * vec-perm-indices.h (vec_perm_indices::clamp): Change input type
4768         from int to HOST_WIDE_INT.
4769
4770 2018-04-11  Martin Jambor  <mjambor@suse.cz>
4771
4772         PR ipa/84149
4773         * ipa-cp.c (propagate_vals_across_pass_through): Expand comment.
4774         (cgraph_edge_brings_value_p): New parameter dest_val, check if it is
4775         not the same as the source val.
4776         (cgraph_edge_brings_value_p): New parameter.
4777         (gather_edges_for_value): Pass destination value to
4778         cgraph_edge_brings_value_p.
4779         (perhaps_add_new_callers): Likewise.
4780         (get_info_about_necessary_edges): Likewise and exclude values brought
4781         only by self-recursive edges.
4782         (create_specialized_node): Redirect only clones of self-calling edges.
4783         (+self_recursive_pass_through_p): New function.
4784         (find_more_scalar_values_for_callers_subset): Use it.
4785         (find_aggregate_values_for_callers_subset): Likewise.
4786         (known_aggs_to_agg_replacement_list): Removed.
4787         (decide_whether_version_node): Re-calculate known constants for all
4788         remaining context clones.
4789
4790 2018-04-11  Richard Biener  <rguenther@suse.de>
4791
4792         PR lto/85339
4793         * dwarf2out.c (dwarf2out_finish): Remove DW_AT_stmt_list attribute
4794         from early DWARF output.
4795         (dwarf2out_early_finish): Output line info unconditionally into
4796         early DWARF and add reference to it.
4797
4798 2018-04-11  Jakub Jelinek  <jakub@redhat.com>
4799
4800         PR target/85281
4801         * config/i386/sse.md (iptr): Add V16SFmode and V8DFmode cases.
4802         (<avx512>_vec_dup<mode><mask_name>): Use a single pattern for modes
4803         other than V2DFmode using iptr mode attribute.
4804         (<avx512>_vec_dup<mode><mask_name>): Use iptr mode attribute.
4805
4806 2018-04-11  Alexander Monakov  <amonakov@ispras.ru>
4807
4808         PR rtl-optimization/84659
4809         * sel-sched-ir.c (sel_init_pipelining): Invoke cleanup_cfg.
4810
4811 2018-04-11  Jakub Jelinek  <jakub@redhat.com>
4812
4813         PR debug/85302
4814         * dwarf2out.c (skip_loc_list_entry): Don't call size_of_locs if
4815         SIZEP is NULL.
4816         (output_loc_list): Pass address of a dummy size variable even in the
4817         locview handling loop.
4818         (index_location_lists): Add comment on why skip_loc_list_entry can't
4819         call size_of_locs.
4820
4821 2018-04-11  Thomas Preud'homme  <thomas.preudhomme@arm.com>
4822
4823         PR target/85261
4824         * config/arm/arm-builtins.c (arm_expand_builtin): Force input operand
4825         into register.
4826
4827 2018-04-10  Aaron Sawdey  <acsawdey@linux.ibm.com>
4828
4829         PR target/85321
4830         * doc/invoke.texi (RS/6000 and PowerPC Options): Document options
4831         -mblock-compare-inline-limit, -mblock-compare-inline-loop-limit,
4832         and -mstring-compare-inline-limit.
4833
4834 2018-04-10  Segher Boessenkool  <segher@kernel.crashing.org>
4835
4836         PR target/85287
4837         * gcc/config/rs6000/rs6000.md (allocate_stack): Put the residual size
4838         for stack clash protection in a register whenever we need it to be in
4839         a register.
4840
4841 2018-04-10  Segher Boessenkool  <segher@kernel.crashing.org>
4842
4843         * common/config/rs6000/rs6000-common.c (rs6000_option_init_struct):
4844         Enable -fasynchronous-unwind-tables by default if OBJECT_FORMAT_ELF.
4845
4846 2018-04-10  Segher Boessenkool  <segher@kernel.crashing.org>
4847
4848         PR target/85321
4849         * config/rs6000/rs6000.opt (mtraceback=): Show the allowed values in
4850         the help text.
4851         (mlong-double-): Ditto.
4852         * config/rs6000/sysv4.opt (msdata=): Ditto.
4853         (mtls-size=): Ditto.
4854
4855 2018-04-10  Kelvin Nilsen  <kelvin@gcc.gnu.org>
4856
4857         * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Remove
4858         erroneous entries for
4859         "vector int vec_ldl (int, long int *)", and
4860         "vector unsigned int vec_ldl (int, unsigned long int *)".
4861         Add comments and entries for
4862         "vector bool char vec_ldl (int, bool char *)",
4863         "vector bool short vec_ldl (int, bool short *)",
4864         "vector bool int vec_ldl (int, bool int *)",
4865         "vector bool long long vec_ldl (int, bool long long *)",
4866         "vector pixel vec_ldl (int, pixel *)",
4867         "vector long long vec_ldl (int, long long *)",
4868         "vector unsigned long long vec_ldl (int, unsigned long long *)".
4869         * config/rs6000/rs6000.c (rs6000_init_builtins): Initialize new
4870         type tree bool_long_long_type_node and correct definition of
4871         bool_V2DI_type_node to make reference to this new type tree.
4872         (rs6000_mangle_type): Replace erroneous reference to
4873         bool_long_type_node with bool_long_long_type_node.
4874         * config/rs6000/rs6000.h (enum rs6000_builtin_type_index): Add
4875         comments to emphasize sign distinctions for char and int types and
4876         replace RS6000_BTI_bool_long constant with
4877         RS6000_BTI_bool_long_long constant.  Also add comment to restrict
4878         use of RS6000_BTI_pixel.
4879         (bool_long_type_node): Remove this macro definition.
4880         (bool_long_long_type_node): New macro definition
4881
4882 2018-04-10  Jakub Jelinek  <jakub@redhat.com>
4883
4884         PR rtl-optimization/85300
4885         * combine.c (subst): Handle subst of CONST_SCALAR_INT_P new_rtx also
4886         into FLOAT and UNSIGNED_FLOAT like ZERO_EXTEND, return a CLOBBER if
4887         simplify_unary_operation fails.
4888
4889 2018-04-10  Martin Liska  <mliska@suse.cz>
4890
4891         * gdbhooks.py: Add pretty-printers for varpool_node, symtab_node,
4892         cgraph_edge and ipa_ref.
4893
4894 2018-04-10  Jakub Jelinek  <jakub@redhat.com>
4895
4896         PR target/85177
4897         PR target/85255
4898         * config/i386/sse.md
4899         (<extract_type>_vinsert<shuffletype><extract_suf>_mask): Fix
4900         computation of the VEC_MERGE selector from mask.
4901         (<extract_type>_vinsert<shuffletype><extract_suf>_1<mask_name>):
4902         Fix decoding of the VEC_MERGE selector into mask.
4903
4904 2018-04-10  Richard Sandiford  <richard.sandiford@linaro.org>
4905
4906         PR tree-optimization/85286
4907         * tree-vect-data-refs.c (vect_get_smallest_scalar_type):
4908
4909 2018-04-10  Richard Sandiford  <richard.sandiford@linaro.org>
4910
4911         * final.c (final_1): Set insn_last_address as well as
4912         insn_current_address.
4913
4914 2018-04-10  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
4915
4916         PR target/85173
4917         * explow.c (emit_stack_probe): Call validize_mem on memory location
4918         before passing it to gen_probe_stack.  Create address operand and
4919         legitimize it for the probe_stack_address case.
4920
4921 2018-04-09  Jan Hubicka  <jh@suse.cz>
4922
4923         PR lto/85078
4924         * ipa-devirt.c (rebuild_type_inheritance-hash): New.
4925         * ipa-utils.h (rebuild_type_inheritance-hash): Declare.
4926         * tree.c (free_lang_data_in_type): Fix handling of binfos;
4927         walk basetypes.
4928         (free_lang_data): Rebuild type inheritance graph.
4929
4930 2018-04-09  Martin Sebor  <msebor@redhat.com>
4931
4932         * invoke.texi (-finline-small-functions): Mention other optimization
4933         options.
4934         (-findirect-inlining, -fpartial-inlining): Same.
4935         (-finline-functions-called-once): Same.
4936         (-freorder-blocks-and-partition): Same.
4937
4938 2018-04-09  Jan Hubicka  <jh@suse.cz>
4939
4940         PR rtl/84058
4941         * cfgcleanup.c (try_forward_edges): Do not give up on crossing
4942         jumps; choose last target that matches the criteria (i.e.
4943         no partition changes for non-crossing jumps).
4944         * cfgrtl.c (cfg_layout_redirect_edge_and_branch): Add basic
4945         support for redirecting crossing jumps to non-crossing.
4946
4947 2018-04-09  Alexey Brodkin  <abrodkin@synopsys.com>
4948
4949         * config/arc/arc.c (arc_expand_prologue): Set stack usage info
4950         also for naked functions.
4951
4952 2018-04-09  Claudiu Zissulescu  <claziss@synopsys.com>
4953
4954         * config/arc/arc.md (add_shift): New pattern.
4955         (add_shift2): Likewise.
4956         (sub_shift): Likewise.
4957         (sub_shift_cmp0_noout): Likewise.
4958         (compare_si_ashiftsi): Likewise.
4959         (xbfu_cmp0_noout): New combine pattern.
4960         (xbfu_cmp0"): Likewise.
4961         (movsi_set_cc_insn): Place the predicable variant first.
4962         (commutative_binary_cmp0_noout): Remove clobber.
4963         (commutative_binary_cmp0): New pattern.
4964         (noncommutative_binary_cmp0): Likewise.
4965         (noncommutative_binary_cmp0_noout): Likewise.
4966         (noncommutative_binary_comparison_result_used): Removed.
4967         (rsub_cmp0): New pattern.
4968         (rsub_cmp0_noout): Likewise.
4969         (extzvsi): Changed, keep only meaningful variants.
4970         (SQH, SEZ): New iterators.
4971         (SQH_postfix): New mode attribute.
4972         (SEZ_prefix): New code attribute.
4973         (<SEZ_prefix>xt<SQH_postfix>_cmp0_noout): New instruction pattern.
4974         (<SEZ_prefix>xt<SQH_postfix>_cmp0): Likewise.
4975         * config/arc/predicates.md (cc_set_register): Use CC_REG instead
4976         of numerical value.
4977         (noncommutative_operator): Check the availability of barrel
4978         shifter option.
4979
4980 2018-04-09  Richard Biener  <rguenther@suse.de>
4981
4982         PR tree-optimization/85284
4983         * tree-ssa-loop-niter.c (number_of_iterations_exit_assumptions):
4984         Only use the niter constraining form of simple_iv when the exit
4985         is always executed.
4986
4987 2018-04-09  Tom de Vries  <tom@codesourcery.com>
4988
4989         PR target/84041
4990         * config/nvptx/nvptx.md (define_c_enum "unspecv"): Add UNSPECV_MEMBAR.
4991         (define_expand "*memory_barrier"): New define_expand.
4992         (define_insn "memory_barrier"): New insn.
4993
4994 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
4995
4996         PR rtl-optimization/80463
4997         PR rtl-optimization/83972
4998         PR rtl-optimization/83480
4999
5000         * sel-sched-ir.c (has_dependence_note_mem_dep): Take into account the
5001         correct producer for the insn.
5002         (tidy_control_flow): Fixup seqnos in case of debug insns.
5003
5004 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
5005
5006         PR rtl-optimization/83913
5007
5008         * sel-sched-ir.c (merge_expr_data): Choose the middle between two
5009         different sched-times when merging exprs.
5010
5011 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
5012
5013         PR rtl-optimization/83962
5014
5015         * sel-sched-ir.c (tidy_control_flow): Correct the order in which we call
5016         tidy_fallthru_edge and tidy_control_flow.
5017
5018 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
5019
5020         PR rtl-optimization/83530
5021
5022         * sel-sched.c (force_next_insn): New global variable.
5023         (remove_insn_for_debug): When force_next_insn is true, also leave only
5024         next insn in the ready list.
5025         (sel_sched_region): When the region wasn't scheduled, make another pass
5026         over it with force_next_insn set to 1.
5027
5028 2018-04-08  Monk Chiang  <sh.chiang04@gmail.com>
5029
5030         * config.gcc (nds32le-*-*, nds32be-*-*): Add nds32/nds32_intrinsic.h
5031         into tm_file.
5032         * config/nds32/constants.md (unspec_volatile_element): Add enum values
5033         for interrupt control.
5034         * config/nds32/nds32-intrinsic.c: Implementation of intrinsic
5035         functions for interrupt control.
5036         * config/nds32/nds32-intrinsic.md: Likewise.
5037         * config/nds32/nds32_intrinsic.h: Likewise.
5038         * config/nds32/nds32.h (nds32_builtins): Likewise.
5039
5040 2018-04-08  Chung-Ju Wu  <jasonwucj@gmail.com>
5041
5042         * config/nds32/nds32.c (nds32_init_machine_status,
5043         nds32_legitimate_index_p, nds32_legitimate_address_p): Consider
5044         strict_aligned_p field.
5045         (nds32_expand_to_rtl_hook): New function.
5046         (TARGET_EXPAND_TO_RTL_HOOK): Define.
5047         * config/nds32/nds32.h (machine_function): Add strict_aligned_p field.
5048
5049 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
5050             Chung-Ju Wu  <jasonwucj@gmail.com>
5051
5052         * config.gcc (nds32*-*-*): Check that n7 is valid to --with-cpu.
5053         * config/nds32/nds32-n7.md: New file.
5054         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_N7.
5055         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n7
5056         pipeline.
5057         * config/nds32/nds32-protos.h: More declarations for n7 pipeline.
5058         * config/nds32/nds32.md (pipeline_model): Add n7.
5059         * config/nds32/nds32.opt (mcpu): Support n7 pipeline cpus.
5060         * config/nds32/pipelines.md: Include n7 settings.
5061
5062 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
5063             Chung-Ju Wu  <jasonwucj@gmail.com>
5064
5065         * config.gcc (nds32*-*-*): Check that e8 is valid to --with-cpu.
5066         * config/nds32/nds32-e8.md: New file.
5067         * config/nds32/nds32-opts.h (nds32-cpu_type): Add CPU_E8.
5068         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for e8
5069         pipeline.
5070         * config/nds32/nds32-protos.h: More declarations for e8 pipeline.
5071         * config/nds32/nds32.md (pipeline_model): Add e8.
5072         * config/nds32/nds32.opt (mcpu): Support e8 pipeline cpus.
5073         * config/nds32/pipelines.md: Include e8 settings.
5074
5075 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
5076             Chung-Ju Wu  <jasonwucj@gmail.com>
5077
5078         * config.gcc (nds32*-*-*): Check that n6/n8/s8 are valid to --with-cpu.
5079         * config/nds32/nds32-n8.md: New file.
5080         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_N6 and CPU_N8.
5081         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n8
5082         pipeline.
5083         * config/nds32/nds32-protos.h: More declarations for n8 pipeline.
5084         * config/nds32/nds32-utils.c: More implementations for n8 pipeline.
5085         * config/nds32/nds32.md (pipeline_model): Add n8.
5086         * config/nds32/nds32.opt (mcpu): Support n8 pipeline cpus.
5087         * config/nds32/pipelines.md: Include n8 settings.
5088
5089 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
5090             Chung-Ju Wu  <jasonwucj@gmail.com>
5091
5092         * config.gcc (nds32*): Add nds32-utils.o into extra_objs.
5093         * config/nds32/nds32-n9-2r1w.md: New file.
5094         * config/nds32/nds32-n9-3r2w.md: New file.
5095         * config/nds32/nds32-opts.h (nds32_cpu_type, nds32_mul_type,
5096         nds32_register_ports): New or modify for cpu n9.
5097         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n9
5098         pipeline.
5099         * config/nds32/nds32-protos.h: More declarations for n9 pipeline.
5100         * config/nds32/nds32-utils.c: New file.
5101         * config/nds32/nds32.h (TARGET_PIPELINE_N9, TARGET_PIPELINE_SIMPLE,
5102         TARGET_MUL_SLOW): Define.
5103         * config/nds32/nds32.md (pipeline_model): New attribute.
5104         * config/nds32/nds32.opt (mcpu, mconfig-mul, mconfig-register-ports):
5105         New options that support cpu n9.
5106         * config/nds32/pipelines.md: Include n9 settings.
5107         * config/nds32/t-nds32 (nds32-utils.o): Add dependency.
5108
5109 2018-04-08  Chung-Ju Wu  <jasonwucj@gmail.com>
5110
5111         * config/nds32/nds32-md-auxiliary.c (output_cond_branch): Output align
5112         information if necessary.
5113         (output_cond_branch_compare_zero): Likewise.
5114         * config/nds32/nds32.c (nds32_adjust_insn_length): Consider align case.
5115         (nds32_target_alignment): Refine for alignment.
5116         * config/nds32/nds32.h (NDS32_ALIGN_P): Define.
5117         (FUNCTION_BOUNDARY): Modify.
5118         * config/nds32/nds32.md (call_internal, call_value_internal): Consider
5119         align case.
5120         * config/nds32/nds32.opt (malways-align, malign-functions): New.
5121
5122 2018-04-08  Monk Chiang  <sh.chiang04@gmail.com>
5123
5124         * config/nds32/constants.md (unspec_volatile_element): Add values for
5125         TLB operation and data prefetch.
5126         * config/nds32/nds32-intrinsic.c: Implementation of intrinsic
5127         functions for TLB operation and data prefetch.
5128         * config/nds32/nds32-intrinsic.md: Likewise.
5129         * config/nds32/nds32_intrinsic.h: Likewise.
5130         * config/nds32/nds32.c (nds32_dpref_names): Likewise.
5131         (nds32_print_operand): Likewise.
5132         * config/nds32/nds32.h (nds32_builtins): Likewise.
5133
5134 2018-04-07  Thomas Koenig  <tkoenig@gcc.gnu.org>
5135         Andrew Pinski <pinsika@gcc.gnu.org>
5136
5137         PR middle-end/82976
5138         * match.pd: Use constant_boolean_node of correct type instead of
5139         boolean_true_node or boolean_false_node for simplifying
5140         pointer comparisons to zero.
5141
5142 2018-04-07  Jakub Jelinek  <jakub@redhat.com>
5143
5144         PR tree-optimization/80021
5145         * tree.c (verify_type_variant): Make error call in verify_variant_match
5146         translatable and remove final full stop.
5147
5148 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
5149
5150         * config/nds32/constants.md (unspec_volatile_element): Add
5151         UNSPEC_VOLATILE_EH_RETURN.
5152         * config/nds32/nds32-md-auxiliary.c (nds32_output_stack_push,
5153         nds32_output_stack_pop): Support dwarf exception handling process.
5154         * config/nds32/nds32-protos.h (nds32_dynamic_chain_address): Declare.
5155         * config/nds32/nds32.c (nds32_init_machine_status): Support dwarf
5156         exception handling process.
5157         (nds32_compute_stack_frame): Likewise.
5158         (nds32_return_addr_rtx): Likewise.
5159         (nds32_initial_elimination_offset): Likewise.
5160         (nds32_expand_prologue): Likewise.
5161         (nds32_expand_epilogue): Likewise.
5162         (nds32_dynamic_chain_address): New function.
5163         * config/nds32/nds32.h (machine_function): Add fields for dwarf
5164         exception handling.
5165         (DYNAMIC_CHAIN_ADDRESS): Define.
5166         (EH_RETURN_DATA_REGNO): Define.
5167         (EH_RETURN_STACKADJ_RTX): Define.
5168         * config/nds32/nds32.md (eh_return, nds32_eh_return): Implement
5169         patterns for dwarf exception handling.
5170
5171 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
5172
5173         * config/nds32/nds32.h: Clean up obsolete macros.
5174
5175 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
5176
5177         * config/nds32/constants.md (unspec_element, unspec_volatile_element):
5178         Add enum values for particular instructions.
5179         * config/nds32/nds32-intrinsic.c: Implementation of expanding
5180         particular intrinsic functions.
5181         * config/nds32/nds32-intrinsic.md: Likewise.
5182         * config/nds32/nds32_intrinsic.h: Likewise.
5183         * config/nds32/nds32.h (nds32_builtins): Likewise.
5184         * config/nds32/nds32.md (type): Add pbsad and pbsada.
5185         (btst, ave): New patterns for particular instructions.
5186
5187 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
5188
5189         * config/nds32/constants.md (unspec_element, unspec_volatile_element):
5190         Add enum values for atomic load/store and memory sync.
5191         * config/nds32/nds32-intrinsic.c: Implementation for atomic load/store
5192         and memory sync.
5193         * config/nds32/nds32-intrinsic.md: Likewise.
5194         * config/nds32/nds32_intrinsic.h: Likewise.
5195         * config/nds32/nds32.h (nds32_builtins): Likewise.
5196
5197 2018-04-07  Jakub Jelinek  <jakub@redhat.com>
5198
5199         PR tree-optimization/85257
5200         * fold-const.c (native_encode_vector): If not all elts could fit
5201         and off is -1, return 0 rather than offset.
5202         * tree-ssa-sccvn.c (vn_reference_lookup_3): Pass
5203         (offseti - offset2) / BITS_PER_UNIT as 4th argument to
5204         native_encode_expr.  Verify len * BITS_PER_UNIT >= maxsizei.  Don't
5205         adjust buffer in native_interpret_expr call.
5206
5207 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
5208
5209         * config/nds32/constants.md (unspec_volatile_element): Add cache
5210         control enum values.
5211         * config/nds32/nds32-intrinsic.c: Add cache control expand functions.
5212         * config/nds32/nds32-intrinsic.md: Add cache control patterns.
5213         * config/nds32/nds32.c (nds32_cctl_names): New.
5214         (nds32_print_operand): Handle cache control register names.
5215         * config/nds32/nds32.h (nds32_builtins): New enum values.
5216         * config/nds32/nds32_intrinsic.h: Add cache control enum types and
5217         macros.
5218         * config/nds32/nds32.md (type): Add mmu.
5219         * config/nds32/pipelines.md (simple_insn): Add mmu.
5220
5221 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
5222
5223         * config/nds32/nds32.md (type): Remove call.
5224         * config/nds32/pipelines.md (simple_insn): Likewise.
5225
5226 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
5227
5228         * config/nds32/constants.md (unspec_volatile_element): Add
5229         UNSPEC_VOLATILE_FMFCSR, UNSPEC_VOLATILE_FMTCSR and
5230         UNSPEC_VOLATILE_FMFCFG.
5231         * config/nds32/nds32-intrinsic.c (bdesc_noarg): New builtin
5232         description for fmfcfg and fmfcsr.
5233         (bdesc_1arg): Add fmtcsr.
5234         (bdesc_2arg): Add fcpynss, fcpyss, fcpynsd and fcpysd.
5235         (nds32_expand_builtin_impl): Deal with FPU intrinsic functions.
5236         * config/nds32/nds32-intrinsic.md (unspec_fcpynsd, unspec_fcpysd,
5237         unspec_fcpynss, unspec_fcpysd, unspec_fcpyss, unspec_fmfcsr,
5238         unspec_fmfcfg): New patterns.
5239         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_FMFCFG,
5240         NDS32_BUILTIN_FMFCSR, NDS32_BUILTIN_FMTCSR, NDS32_BUILTIN_FCPYNSS,
5241         NDS32_BUILTIN_FCPYSS,NDS32_BUILTIN_FCPYNSD and NDS32_BUILTIN_FCPYSD.
5242         * config/nds32/nds32_intrinsic.h (__nds32__fcpynsd, __nds32__fcpynss,
5243         __nds32__fcpysd, __nds32__fcpyss, __nds32__fmfcsr, __nds32__fmtcsr,
5244         __nds32__fmfcfg): Define.
5245
5246 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
5247
5248         * config/nds32/nds32.c (nds32_intrinsic_register_names): Add more
5249         intrinsic register names.
5250         * config/nds32/nds32_intrinsic.h (nds32_intrinsic_registers): Add more
5251         intrinsic register enum values and macros.
5252
5253 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
5254
5255         * config/nds32/nds32.c (nds32_legitimate_index_p): Modify condition
5256         for load/store addressing form.
5257         (nds32_print_operand_address): Likewise.
5258
5259 2018-04-06  Eric Botcazou  <ebotcazou@adacore.com>
5260
5261         PR target/85196
5262         * config/sparc/sparc.c (sparc_expand_move): Deal with symbolic operands
5263         based on LABEL_REF.  Remove useless assertion.
5264         (pic_address_needs_scratch): Fix formatting.
5265         (sparc_legitimize_pic_address): Minor tweaks.
5266         (sparc_delegitimize_address): Adjust assertion accordingly.
5267         * config/sparc/sparc.md (movsi_pic_label_ref): Change label_ref_operand
5268         into symbolic_operand.
5269         (movsi_high_pic_label_ref): Likewise.
5270         (movsi_lo_sum_pic_label_ref): Likewise.
5271         (movdi_pic_label_ref): Likewise.
5272         (movdi_high_pic_label_ref): Likewise.
5273         (movdi_lo_sum_pic_label_ref): Likewise.
5274
5275 2018-04-06  Amaan Cheval  <amaan.cheval@gmail.com>
5276
5277         * config.gcc (x86_64-*-rtems*): Add rtems.h to tm_file for
5278         custom LIB_SPEC setup.
5279
5280 2018-04-06  Ruslan Bukin  <br@bsdpad.com>
5281             Kito Cheng  <kito.cheng@gmail.com>
5282
5283         * config.gcc (riscv*-*-freebsd*): Add RISC-V FreeBSD support.
5284         * config/riscv/freebsd.h: New.
5285
5286 2018-04-06  Chung-Ju Wu  <jasonwucj@gmail.com>
5287
5288         * config/nds32/nds32.c (nds32_adjust_insn_length): Refine.
5289         * config/nds32/nds32.h (ADJUST_INSN_LENGTH): Change the location in
5290         file.
5291
5292 2018-04-06  Chung-Ju Wu  <jasonwucj@gmail.com>
5293             Kito Cheng  <kito.cheng@gmail.com>
5294
5295         * config/nds32/nds32-md-auxiliary.c (nds32_output_return,
5296         nds32_output_call, nds32_symbol_binds_local_p): New functions.
5297         * config/nds32/nds32-protos.h (nds32_output_call,
5298         nds32_output_return): Declare.
5299         * config/nds32/nds32.md: Refine all the call and return patterns.
5300
5301 2018-04-06  Jakub Jelinek  <jakub@redhat.com>
5302
5303         PR debug/85252
5304         * dwarf2out.c (rtl_for_decl_init): For STRING_CST initializer only
5305         build CONST_STRING if TYPE_MAX_VALUE is non-NULL and is INTEGER_CST.
5306
5307         PR rtl-optimization/84872
5308         * cfgloopmanip.c (create_preheader): Use make_forwarder_block even if
5309         nentry == 1 when CP_FALLTHRU_PREHEADERS and single_entry is
5310         EDGE_CROSSING edge.
5311
5312 2018-04-06  Tamar Christina  <tamar.christina@arm.com>
5313
5314         * expr.c (copy_blkmode_to_reg): Revert 254862.
5315         * doc/sourcebuild.texi (word_mode_no_slow_unalign): Likewise.
5316
5317 2018-04-06  Richard Biener  <rguenther@suse.de>
5318
5319         PR middle-end/85244
5320         * tree-dfa.c (get_ref_base_and_extent): Reset seen_variable_array_ref
5321         after seeing a component reference with an adjacent field.  Treat
5322         refs to arrays at struct end of external decls similar to
5323         refs to unconstrained commons.
5324
5325 2018-04-06  Jakub Jelinek  <jakub@redhat.com>
5326
5327         PR sanitizer/85213
5328         * fold-const.c (twoval_comparison_p): Remove SAVE_P argument and don't
5329         look through SAVE_EXPRs with non-side-effects argument.  Adjust
5330         recursive calls.
5331         (fold_comparison): Adjust twoval_comparison_p caller, don't handle
5332         save_p here.
5333
5334 2018-04-06  Richard Biener  <rguenther@suse.de>
5335
5336         PR middle-end/85180
5337         * alias.c (find_base_term): New wrapper around find_base_term
5338         unwinding CSELIB_VAL_PTR changes.
5339         (find_base_term): Do not restore CSELIB_VAL_PTR during the
5340         recursion.
5341
5342 2018-04-06  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
5343
5344         * config/s390/s390.c (s390_z10_optimize_cmp): Expand dedicated NOP
5345         instructions.
5346         * config/s390/s390.md (UNSPECV_NOP_LR_0, UNSPECV_NOP_LR_1): New
5347         constant definitions.
5348         ("nop"): lr 0,0 -> nopr r0
5349         ("nop_lr0", "nop_lr1"): New insn definitions.
5350
5351 2018-04-06  Chung-Ju Wu  <jasonwucj@gmail.com>
5352
5353         * config/nds32/nds32.md (*stack_push, *stack_pop): Use
5354         NDS32_V3PUSH_AVAILABLE_P macro.
5355
5356 2018-04-06  Monk Chiang  <sh.chiang04@gmail.com>
5357             Chung-Ju Wu  <jasonwucj@gmail.com>
5358
5359         * config.gcc (nds32*-*-*): Add v2j v3f v3s checking.
5360         (nds32*-*-*): Add float and fpu_config into supported_defaults.
5361         * common/config/nds32/nds32-common.c (TARGET_DEFAULT_TARGET_FLAGS):
5362         Include TARGET_DEFAULT_FPU_ISA and TARGET_DEFAULT_FPU_FMA.
5363         * config/nds32/constants.md (unspec_element): Add UNSPEC_COPYSIGN,
5364         UNSPEC_FCPYNSD, UNSPEC_FCPYNSS, UNSPEC_FCPYSD and UNSPEC_FCPYSS.
5365         * config/nds32/constraints.md: New constraints and checking for hard
5366         float configuration.
5367         * config/nds32/iterators.md: New mode iterator and attribute for hard
5368         float configuration.
5369         * config/nds32/nds32-doubleword.md: Use hard float alternatives and
5370         patterns.
5371         * config/nds32/nds32-fpu.md: New file.
5372         * config/nds32/nds32-md-auxiliary.c: New functions and checkings to
5373         deal with hard float code generation.
5374         * config/nds32/nds32-opts.h (nds32_arch_type): Add ARCH_V3F and
5375         ARCH_V3S.
5376         (abi_type, float_reg_number): New enum type.
5377         * config/nds32/nds32-predicates.c: New predicates for hard float.
5378         * config/nds32/nds32-protos.h: Declare functions for hard float.
5379         * config/nds32/nds32.c: Implementation for hard float configuration.
5380         * config/nds32/nds32.h: Definitions for hard float configuration.
5381         * config/nds32/nds32.md: Include hard float machine description and
5382         modify patterns for hard float configuration.
5383         * config/nds32/nds32.opt: New options for hard float configuration.
5384         * config/nds32/predicates.md: New predicates for hard float
5385         configuration.
5386
5387 2018-04-06  Kuan-Lin Chen  <kuanlinchentw@gmail.com>
5388
5389         * common/config/nds32/nds32-common.c
5390         (nds32_option_optimization_table): Enable -mreleax-hint by default.
5391
5392 2018-04-05  Jakub Jelinek  <jakub@redhat.com>
5393
5394         PR middle-end/85195
5395         * match.pd (BIT_FIELD_REF CONSTRUCTOR@0 @1 @2): Use view_convert around
5396         CONSTRUCTOR_ELT (ctor, ...)->value.
5397
5398 2018-04-05  Uros Bizjak  <ubizjak@gmail.com>
5399
5400         PR target/85193
5401         * config/i386/i386.md (define_attr "memory"): Handle rotate1 type.
5402
5403 2018-04-05  Tom de Vries  <tom@codesourcery.com>
5404
5405         PR target/85204
5406         * config/nvptx/nvptx.c (nvptx_single): Fix neutering of bb with only
5407         cond jump.
5408
5409 2018-04-05  Shiva Chen  <shiva0217@gmail.com>
5410             Kito Cheng  <kito.cheng@gmail.com>
5411
5412         * config/nds32/constraints.md (U33): Fine-tune checking condition.
5413         * config/nds32/nds32-md-auxiliary.c (nds32_mem_format): Ditto.
5414         * config/nds32/nds32.h (nds32_16bit_address_type): Add
5415         ADDRESS_POST_MODIFY_LO_REG_IMM3U.
5416
5417 2018-04-05  Shiva Chen  <shiva0217@gmail.com>
5418             Kito Cheng  <kito.cheng@gmail.com>
5419
5420         * config/nds32/constraints.md (Ufe): New memory constraint.
5421         * config/nds32/nds32-md-auxiliary.c (nds32_mem_format,
5422         nds32_output_16bit_load): Consider r8 register for lwi45.fe format.
5423         * config/nds32/nds32.c (nds32_print_operand): Output lwi45.fe
5424         operands.
5425         * config/nds32/nds32.h (nds32_16bit_address_type): Add ADDRESS_R8_IMM7U.
5426         * config/nds32/nds32.md (*mov<mode>): Adjust pattern.
5427
5428 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
5429
5430         * config/nds32/nds32.md: Use optimize_size in the condition for
5431         alu-shift instructions.
5432
5433 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
5434
5435         * config/nds32/nds32.md (divsi4, udivsi4): New patterns.
5436
5437 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
5438
5439         * config/nds32/nds32.md (negsi2): Refine pattern.
5440
5441 2018-04-05  Kito Cheng  <kito.cheng@gmail.com>
5442             Chung-Ju Wu  <jasonwucj@gmail.com>
5443
5444         * config/nds32/iterators.md (shift_rotate): New code iterator.
5445         (shift): New code attribute.
5446         * config/nds32/nds32-md-auxiliary.c (nds32_expand_constant): New.
5447         * config/nds32/nds32-protos.h (nds32_expand_constant): Declare.
5448         * config/nds32/nds32.c (nds32_print_operand): Deal with more cases.
5449         * config/nds32/nds32.md (addsi3, *add_srli): Refine implementation for
5450         bit-wise operations.
5451         (andsi3, *andsi3): Ditto.
5452         (iorsi3, *iorsi3, *or_slli, *or_srli): Ditto.
5453         (xorsi3, *xorsi3, *xor_slli, *xor_srli): Ditto.
5454         (<shift>si3, *ashlsi3, *ashrsi3, *lshrsi3, *rotrsi3): Ditto.
5455         * config/nds32/predicates.md (nds32_rimm5u_operand, nds32_and_operand,
5456         nds32_ior_operand, nds32_xor_operand): New predicates.
5457
5458 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
5459
5460         * config/nds32/nds32.md (add<mode>3, sub<mode>3): Rename to ...
5461         (addsi3, subsi3): ... this.
5462
5463 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
5464
5465         * config/nds32/nds32.md (*sub_srli, *and_slli): Fine-tune predicator.
5466
5467 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
5468
5469         * config/nds32/nds32.md: Adjust indention.
5470
5471 2018-04-05  Kito Cheng  <kito.cheng@gmail.com>
5472
5473         * config/nds32/nds32.md (feature): New attribute.
5474
5475 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
5476
5477         * config/nds32/nds32.md (subtype): New attribute.
5478
5479 2018-04-04  Thomas Preud'homme  <thomas.preudhomme@arm.com>
5480
5481         PR target/85203
5482         * config/arm/arm-builtins.c (arm_expand_builtin): Change
5483         expansion to perform a bitwise AND of the argument followed by a
5484         boolean negation of the result.
5485
5486 2018-04-04  Peter Bergner  <bergner@vnet.ibm.com>
5487
5488         PR rtl-optimization/84878
5489         * ddg.c (add_cross_iteration_register_deps): Use DF_REF_BB to determine
5490         the basic block.  Assert the use reference is not artificial and that
5491         it has an associated insn.
5492
5493 2018-04-04  Michael Matz  <matz@suse.de>
5494
5495         * builtins.c (compute_objsize): Pass correct operand
5496         to array_at_struct_end_p.
5497
5498 2018-04-04  Richard Biener  <rguenther@suse.de>
5499
5500         PR lto/85176
5501         * dwarf2out.c (dwarf2out_register_external_die): Peel namespaces
5502         from contexts for DINFO_LEVEL_TERSE and below.
5503
5504 2018-04-04  Kito Cheng  <kito.cheng@gmail.com>
5505
5506         * config/nds32/nds32-doubleword.md (move_<mode>): Require
5507         resiter_operand condition.
5508         * config/nds32/nds32.md (*move<mode>): Ditto.
5509
5510 2018-04-04  Kito Cheng  <kito.cheng@gmail.com>
5511             Monk Chiang  <sh.chiang04@gmail.com>
5512
5513         * config/nds32/nds32.md (movmisalign<mode>): New pattern.
5514
5515 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
5516
5517         * config/nds32/nds32.md (movqi, movhi): Merge into mov<mode>.
5518
5519 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
5520             Kito Cheng  <kito.cheng@gmail.com>
5521
5522         * config/nds32/nds32-md-auxiliary.c (nds32_inverse_cond_code,
5523         nds32_cond_code_str, output_cond_branch,
5524         output_cond_branch_compare_zero, nds32_expand_cbranch,
5525         nds32_expand_cstore, nds32_expand_movcc,
5526         nds32_output_cbranchsi4_equality_zero,
5527         nds32_output_cbranchsi4_equality_reg,
5528         nds32_output_cbranchsi4_equality_reg_or_const_int,
5529         nds32_output_cbranchsi4_greater_less_zero: New functions.
5530         * config/nds32/nds32-protos.h (nds32_expand_cbranch,
5531         nds32_expand_cstore, nds32_expand_movcc,
5532         nds32_output_cbranchsi4_equality_zero,
5533         nds32_output_cbranchsi4_equality_reg,
5534         nds32_output_cbranchsi4_equality_reg_or_const_int,
5535         nds32_output_cbranchsi4_greater_less_zero): Declare.
5536         * config/nds32/predicates.md (nds32_movecc_comparison_operator,
5537         nds32_rimm11s_operand): New predicates.
5538         * config/nds32/nds32.h (nds32_expand_result_type): New enum type.
5539         * config/nds32/nds32.md: Rewrite all the branch and conditional move
5540         patterns.
5541
5542 2018-04-04  Kito Cheng  <kito.cheng@gmail.com>
5543
5544         * config/nds32/nds32-doubleword.md: Refine all the instruction type.
5545         * config/nds32/nds32.md: Ditto.
5546         * config/nds32/pipelines.md: Ditto.
5547
5548 2018-04-04  Richard Biener  <rguenther@suse.de>
5549
5550         PR tree-optimization/85168
5551         * tree-ssa-sccvn.c (vn_reference_maybe_forwprop_address): Avoid
5552         propagating abnormals.
5553
5554 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
5555
5556         * config/nds32/nds32.md (enabled): Use yes/no for this attribute.
5557
5558 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
5559             Kito Cheng  <kito.cheng@gmail.com>
5560
5561         * config/nds32/nds32-md-auxiliary.c (nds32_long_call_p): New function.
5562         * config/nds32/nds32-protos.h (nds32_long_call_p): Declare.
5563         * config/nds32/nds32.c (nds32_function_ok_for_sibcall): New function.
5564         (TARGET_FUNCTION_OK_FOR_SIBCALL): Define.
5565         * config/nds32/nds32.md (sibcall_internal): New.
5566         (sibcall_register): Remove.
5567         (sibcall_immediate): Remove.
5568         (sibcall_value_internal): New.
5569         (sibcall_value_register): Remove.
5570         (sibcall_value_immediate): Remove.
5571         * config/nds32/predicates.md (nds32_general_register_operand): New.
5572         (nds32_call_address_operand): New.
5573
5574 2018-04-03  Jakub Jelinek  <jakub@redhat.com>
5575
5576         PR rtl-optimization/85167
5577         * shrink-wrap.c (move_insn_for_shrink_wrap): Don't set bb_uses and
5578         bb_defs if *split_p, instead preinitialize it to NULL.
5579
5580         PR tree-optimization/85156
5581         * builtins.c (fold_builtin_expect): Use save_expr on arg1 to avoid
5582         evaluating the argument multiple times.
5583
5584 2018-04-03  Bill Schmidt  <wschmidt@linux.ibm.com>
5585
5586         * config/rs6000/emmintrin.h (_mm_cvtpd_epi32): Use __vector rather
5587         than vector.
5588         (_mm_cvtpd_ps): Likewise.
5589         (_mm_cvttpd_epi32): Likewise.
5590         * config/rs6000/mmintrin.h (_mm_unpacklo_pi8): Likewise.
5591         * config/rs6000/xmmintrin.h: For strict-ANSI C++ or C11, undefine
5592         vector, pixel, and bool following altivec.h include.
5593
5594 2018-04-03  Martin Sebor  <msebor@redhat.com>
5595
5596         * doc/extend.texi (Common Function Attributes): Clarify.
5597         (const attribute): Likewise.
5598         (pure attribute): Likewise.
5599
5600 2018-04-03  Jakub Jelinek  <jakub@redhat.com>
5601
5602         PR target/85169
5603         * config/i386/i386.c (ix86_expand_vector_set): Use
5604         HOST_WIDE_INT_1U << elt instead of 1 << elt.  Formatting fix.
5605
5606 2018-04-03  Uros Bizjak  <ubizjak@gmail.com>
5607
5608         * config/i386/i386.c (emit_i387_cw_initialization): Always use logic
5609         instructions when changing rounding bits to preserve precision bits
5610         in the x87 control word.
5611
5612 2018-04-03  Martin Liska  <mliska@suse.cz>
5613
5614         PR tree-optimization/82491
5615         * rtl.h (strip_offset_and_add): Replace += suboffset with
5616         poly_uint64 () + suboffset.
5617
5618 2018-03-29  Martin Liska  <mliska@suse.cz>
5619             Martin Jambor  <mjambor@suse.cz>
5620
5621         PR ipa/84947
5622         * ipa-cp.c (propagate_bits_across_jump_function): Bail out if
5623         param_type is not an integral or pointer type.
5624
5625 2018-04-03  Richard Biener  <rguenther@suse.de>
5626
5627         * sese.h (recompute_all_dominators): Remove.
5628
5629 2018-04-02  Martin Sebor  <msebor@redhat.com>
5630
5631         * doc/invoke.texi (-Wrestrict): Fix typos.
5632
5633 2018-04-02  Jim Wilson  <jimw@sifive.com>
5634
5635         * config/riscv/riscv.h (SHIFT_COUNT_TRUNCATED): Set to zero.
5636         * config/riscv/riscv.md (<optab>si3): Use QImode shift count.
5637         (<optab>di3, <optab>si3_extend): Likewise.
5638         (<optab>si3_mask, <optab>si3_mask_1): New.
5639         (<optab>di3_mask, <optab>di3_mask_1): New.
5640         (<optab>si3_extend_mask, <optab>si3_extend_mask_1): New.
5641         (lshrsi3_zero_extend_1): Use VOIDmode shift count.
5642         * config/riscv/sync.md (atomic_test_and_set): Emit QImode shift count.
5643
5644 2018-04-02  Gerald Pfeifer  <gerald@pfeifer.com>
5645
5646         * doc/cpp.texi (Variadic Macros): Fix line continuation in an
5647         example.
5648
5649 2018-04-02  Chung-Ju Wu  <jasonwucj@gmail.com>
5650
5651         * config/nds32/nds32.c (TARGET_CANONICALIZE_COMPARISON): Define.
5652         (nds32_canonicalize_comparison): New function.
5653
5654 2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
5655             Kito Cheng  <kito.cheng@gmail.com>
5656             Kuan-Lin Chen  <kuanlinchentw@gmail.com>
5657
5658         * config.gcc (nds32): Add nds32-relax-opt.o into extra_objs.
5659         * config/nds32/constants.md (unspec_volatile_element): Add
5660         UNSPEC_VOLATILE_RELAX_GROUP.
5661         * config/nds32/nds32-relax-opt.c: New file.
5662         * config/nds32/nds32-predicates.c
5663         (nds32_symbol_load_store_p): New function.
5664         * config/nds32/nds32-protos.h
5665         (nds32_symbol_load_store_p): Declare function.
5666         (make_pass_nds32_relax_opt): Declare new rtl pass function.
5667         * config/nds32/nds32.c
5668         (nds32_register_pass): New function to register pass.
5669         (nds32_register_passes): New function to register passes.
5670         * config/nds32/nds32.md (relax_group): New pattern.
5671         * config/nds32/nds32.opt (mrelax-hint): New option.
5672         * config/nds32/t-nds32 (nds32-relax-opt.o): New dependency.
5673
5674 2018-04-01  Kito Cheng  <kito.cheng@gmail.com>
5675
5676         * config/nds32/t-nds32: Modify files dependency.
5677
5678 2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
5679
5680         * config/nds32/nds32.h (FUNCTION_PROFILER): Output newline character.
5681         (PROFILE_HOOK): Define its implementation.
5682
5683 2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
5684
5685         * config/nds32/nds32.h (WCHAR_TYPE, WCHAR_TYPE_SIZE): Use unsigned int
5686         type and 32-bit size.
5687
5688 2018-04-01  Jakub Jelinek  <jakub@redhat.com>
5689
5690         PR middle-end/85090
5691         * config/i386/sse.md (V): Add V64QI and V32HI for TARGET_AVX512F.
5692         (V_128_256): New mode iterator.
5693         (*avx512dq_vextract<shuffletype>64x2_1 splitter): New define_split.
5694         (*avx512f_vextract<shuffletype>32x4_1 splitter): Likewise.
5695         (xop_pcmov_<mode><avxsizesuffix>): Use V_128_256 mode iterator instead
5696         of V.
5697         * config/i386/i386.c (ix86_expand_vector_set): Improve V32HImode and
5698         V64QImode expansion for !TARGET_AVX512BW && TARGET_AVX512F.
5699
5700 2018-03-31  Segher Boessenkool  <segher@kernel.crashing.org>
5701
5702         PR target/83315
5703         * config/rs6000/xmmintrin.h (_mm_set_ps, _mm_max_ps): Handle (quiet)
5704         NaN inputs correctly.
5705
5706 2018-03-30  Peter Bergner  <bergner@vnet.ibm.com>
5707
5708         PR target/80546
5709         * config/rs6000/vsx.md (??r): New mode attribute.
5710         (*vsx_mov<mode>_64bit): Use it.
5711         (*vsx_mov<mode>_32bit): Likewise.
5712
5713 2018-03-30  Martin Sebor  <msebor@redhat.com>
5714
5715         PR tree-optimization/84818
5716         * builtins.c (check_access): Use warning_n.
5717
5718 2018-03-30  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
5719
5720         PR target/83822
5721         * config/rs6000/rs6000-string.c (expand_compare_loop): Fix redundant
5722         condition.
5723         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Fix redundant
5724         condition.
5725
5726 2018-03-30  Julia Koval  <julia.koval@intel.com>
5727
5728         PR target/84413
5729         * x86-tune.def (movx, partial_reg_dependency): Enable for
5730         m_SKYLAKE_AVX512.
5731
5732 2018-03-29  Vladimir Makarov  <vmakarov@redhat.com>
5733
5734         PR inline-asm/84985
5735         * lra-constraints.c (process_alt_operands): Move setting
5736         this_alternative_matches below.
5737
5738 2018-03-29  Martin Liska  <mliska@suse.cz>
5739
5740         PR lto/84995.
5741         * doc/invoke.texi: Document how LTO works with debug info.
5742         Describe auto-load support of binutils.  Mention 'x86-64'
5743         as valid option value of -march option.
5744
5745 2018-03-29  Jakub Jelinek  <jakub@redhat.com>
5746
5747         * config/i386/sse.md (<avx512>_blendm<mode>): Use <sseintprefix>.
5748
5749         PR c/85094
5750         * fold-const.c (operand_equal_p): Handle DEBUG_BEGIN_STMT.
5751         For STATEMENT_LIST, pass down OEP_LEXICOGRAPHIC and maybe
5752         OEP_NO_HASH_CHECK for recursive call, to avoid exponential
5753         checking.
5754
5755 2018-03-28  Peter Bergner  <bergner@vnet.ibm.com>
5756
5757         PR target/84912
5758         * config/rs6000/rs6000.h (RS6000_BTM_POWERPC64): New define.
5759         (RS6000_BTM_COMMON): Add RS6000_BTM_POWERPC64.
5760         * config/rs6000/rs6000.c (rs6000_builtin_mask_calculate): Add support
5761         for RS6000_BTM_POWERPC64.
5762         (rs6000_invalid_builtin): Add handling for RS6000_BTM_POWERPC64
5763         (rs6000_builtin_mask_names): Add RS6000_BTM_POWERPC64.
5764         * config/rs6000/rs6000-builtin.def (BU_P7_POWERPC64_MISC_2): New macro
5765         definition.
5766         (DIVDE): Use it.
5767         (DIVDEU): Likewise.
5768
5769 2018-03-28 Carl Love  <cel@us.ibm.com>
5770
5771         Revert
5772         2017-09-27  Carl Love  <cel@us.ibm.com>
5773
5774         * config/rs6000/rs6000-builtin.def (BU_FP_1MISC_1): Add define macro.
5775         (FCTID, FCTIW): Add BU_FP_MISC_1 macro expansion for builtins.
5776         * config/rs6000/rs6000.md (lrintsfsi2): Add define_insn for the
5777         fctiw instruction.
5778
5779 2018-03-28  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
5780
5781         * config/rs6000/xmmintrin.h (_mm_max_pi16): Use __vector __bool
5782         instead of __vector bool.
5783         (_mm_max_pu8): Likewise.
5784         (_mm_min_pi16): Likewise.
5785
5786 2018-03-28  Peter Bergner  <bergner@vnet.ibm.com>
5787
5788         PR target/84912
5789         * config/rs6000/rs6000-builtin.def (DIVWEO): Delete macro expansion.
5790         (DIVWEUO): Likewise.
5791         (DIVDEO): Likewise.
5792         (DIVDEUO): Likewise.
5793         * config/rs6000/rs6000.c (builtin_function_type): Remove support for
5794         DIVWEUO and DIVDEUO.
5795         * config/rs6000/rs6000.md (UNSPEC_DIVEO, UNSPEC_DIVEUO): Delete unspecs.
5796         (UNSPEC_DIV_EXTEND): Remove deleted unspecs.
5797         (div_extend): Likewise.
5798         * doc/extend.texi (__builtin_divweo): Remove documentation for deleted
5799         builtin function.
5800         (__builtin_divweuo): Likewise.
5801         (__builtin_divdeo): Likewise.
5802         (__builtin_divdeuo): Likewise.
5803
5804 2018-03-28  Jakub Jelinek  <jakub@redhat.com>
5805
5806         PR target/85095
5807         * config/i386/i386.md (*add<mode>3_carry_0, *addsi3_carry_zext_0,
5808         *sub<mode>3_carry_0, *subsi3_carry_zext_0): New patterns.
5809
5810         PR tree-optimization/82004
5811         * gimple-match-head.c (optimize_pow_to_exp): New function.
5812         * match.pd (pow(C,x) -> exp(log(C)*x)): Wrap with #if GIMPLE.
5813         Don't fold to exp if optimize_pow_to_exp is false.
5814
5815 2018-03-28  Martin Liska  <mliska@suse.cz>
5816
5817         PR other/84819
5818         * calls.c (initialize_argument_information): Fix trailing space.
5819         * common.opt: Fix typo and provide better explanation for
5820         -fsanitize-coverage option.
5821         * config/i386/i386.opt: Fix typo.
5822
5823 2018-03-28  Jakub Jelinek  <jakub@redhat.com>
5824             Martin Liska  <mliska@suse.cz>
5825
5826         PR sanitizer/85081
5827         * gimplify.c (asan_poison_variable): Don't do the check for
5828         gimplify_omp_ctxp here.
5829         (gimplify_decl_expr): Do it here.
5830         (gimplify_target_expr): Likewise.
5831
5832 2018-03-28  Martin Liska  <mliska@suse.cz>
5833
5834         PR target/84988
5835         * config/i386/i386.c (ix86_function_arg_advance): Do not call
5836         chkp_type_bounds_count if MPX is not enabled.
5837
5838 2018-03-27  Chung-Ju Wu  <jasonwucj@gmail.com>
5839
5840         * config/nds32/nds32.h (BRANCH_COST): Adjust cost.
5841
5842 2018-03-27  Michael Meissner  <meissner@linux.vnet.ibm.com>
5843
5844         PR target/84914
5845         * config/rs6000/rs6000.c (create_complex_muldiv): New helper
5846         function to create the function decl for complex long double
5847         multiply and divide for -mabi=ieeelongdouble.
5848         (init_float128_ieee): Call it.
5849
5850 2018-03-27  H.J. Lu  <hongjiu.lu@intel.com>
5851
5852         PR target/85044
5853         * config/i386/i386.c (ix86_trampoline_init): Insert ENDBR for
5854         -fcf-protection=branch -mibt.
5855         * config/i386/i386.h (TRAMPOLINE_SIZE): Increased by 4 bytes.
5856
5857 2018-03-27  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
5858
5859         PR target/81863
5860         * config/arm/arm.c (arm_valid_symbolic_address): Handle
5861         arm_word_relocations.
5862
5863 2018-03-27  Cesar Philippidis  <cesar@codesourcery.com>
5864
5865         PR target/85056
5866         * config/nvptx/nvptx.c (nvptx_assemble_decl_begin): Add '[]' to
5867         extern array declarations.
5868
5869 2018-03-27  Richard Biener  <rguenther@suse.de>
5870
5871         PR middle-end/84067
5872         * match.pd ((A * C) +- (B * C) -> (A+-B) * C): Guard with
5873         explicit single_use checks.
5874
5875 2018-03-27  Richard Biener  <rguenther@suse.de>
5876
5877         PR tree-optimization/85082
5878         * tree-ssa-sccvn.c (vn_reference_lookup_or_insert_for_pieces):
5879         Valueize the VUSE.
5880
5881 2018-03-27  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
5882
5883         * config.gcc (aarch64*-*-linux*): New TARGET_DEFAULT_ASYNC_UNWIND_TABLES
5884         * common/config/aarch64/aarch64-common.c (aarch64_optimization_table[]):
5885         Turn on fasynchronous-unwind-tables and funwind-tables.
5886
5887 2018-03-26  Uros Bizjak  <ubizjak@gmail.com>
5888
5889         PR target/85073
5890         * config/i386/i386.md (*bmi_blsr_<mode>_cmp): New insn pattern.
5891         (*bmi_blsr_<mode>_ccz): Ditto.
5892
5893 2018-03-26  Tom de Vries  <tom@codesourcery.com>
5894
5895         PR tree-optimization/85063
5896         * omp-general.c (offloading_function_p): New function.  Factor out
5897         of ...
5898         * omp-offload.c (pass_omp_target_link::gate): ... here.
5899         * omp-general.h (offloading_function_p): Declare.
5900         * tree-switch-conversion.c (build_one_array): Mark CSWTCH.x variable
5901         with attribute omp declare target for offloading functions.
5902
5903 2018-03-24  Richard Sandiford  <richard.sandiford@linaro.org>
5904
5905         PR tree-optimization/84005
5906         * tree-data-ref.h (get_base_for_alignment): Declare.
5907         * tree-data-ref.c (get_base_for_alignment_1): New function.
5908         (get_base_for_alignment): Likewise.
5909         * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Use
5910         get_base_for_alignment to find a suitable base object, instead
5911         of always using drb->base_address.
5912
5913 2018-03-23  Jakub Jelinek  <jakub@redhat.com>
5914
5915         PR inline-asm/85022
5916         * emit-rtl.c (init_emit_regs): Indicate that VOIDmode MEMs don't have
5917         known size by default.
5918
5919 2018-03-23  Vladimir Makarov  <vmakarov@redhat.com>
5920
5921         PR inline-asm/85030
5922         * lra-constraints.c (process_alt_operands): Don't match BLKmode
5923         and non BLKmode operands.
5924
5925 2018-03-23  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
5926
5927         PR target/85026
5928         * config/arm/arm.md (unaligned_loadhis): Remove first alternative.
5929         Clean up attributes.
5930
5931 2018-03-23  Richard Biener  <rguenther@suse.de>
5932
5933         PR debug/85020
5934         * dwarf2out.c (rtl_for_decl_location): Do not generate RTL early when
5935         we are going to emit early debug for LTO.
5936
5937 2018-03-23  Jakub Jelinek  <jakub@redhat.com>
5938
5939         PR inline-asm/85034
5940         * function.c (match_asm_constraints_1): Don't optimize if input
5941         doesn't satisfy general_operand predicate for output's mode.
5942
5943         PR inline-asm/85022
5944         * alias.c (write_dependence_p): Don't require for x_canonicalized
5945         non-VOIDmode if x has VOIDmode.
5946
5947         PR sanitizer/85029
5948         * sanopt.c (maybe_optimize_ubsan_ptr_ifn): If DECL_REGISTER (base),
5949         just don't try to optimize it rather than assert it never happens.
5950
5951 2018-03-22  Kelvin Nilsen  <kelvin@gcc.gnu.org>
5952
5953         * config/rs6000/rs6000-builtin.def: Remove various BU_ALTIVEC_X
5954         macro expansions for definition of ST_INTERNAL_<mode> and
5955         LD_INTERNAL_<mode> builtins.
5956         * config/rs6000/rs6000-protos.h (rs6000_address_for_altivec):
5957         Remove prototype.
5958         * config/rs6000/rs6000.c (altivec_expand_ld_builtin): Delete this
5959         function.
5960         (altivec_expand_st_builtin): Likewise.
5961         (altivec_expand_builtin): Remove calls to deleted functions.
5962         (rs6000_address_for_altivec): Delete this function.
5963         * config/rs6000/vector.md: Remove expands for
5964         vector_altivec_load_<mode> and vector_altivec_store_<mode>.
5965
5966 2018-03-22  Sudakshina Das  <sudi.das@arm.com>
5967
5968         PR target/84826
5969         * config/arm/arm.h (machine_function): Add static_chain_stack_bytes.
5970         * config/arm/arm.c (arm_compute_static_chain_stack_bytes): Avoid
5971         re-computing once computed.
5972         (arm_expand_prologue): Compute machine->static_chain_stack_bytes.
5973         (arm_init_machine_status): Initialize
5974         machine->static_chain_stack_bytes.
5975
5976 2018-03-22  Kelvin Nilsen  <kelvin@gcc.gnu.org>
5977
5978         PR target/84760
5979         * doc/extend.texi: Add four new prototypes for vec_ld.
5980         * config/rs6000/rs6000-builtin.def (LVX_V1TI): Reorder symbol
5981         definitions for more logical presentation.
5982         * config/rs6000/rs6000-c.c: (altivec_overloaded_builtins): Add
5983         entries for V1TI variants of __builtin_altivec_ld builtin.
5984         * config/rs6000/rs6000.c: (altivec_expand_lv_builtin): Add test and
5985         handling of V1TI variant of LVX icode pattern.
5986         (altivec_expand_builtin): Add case for ALTIVEC_BUILTIN_LVX_V1TI.
5987         (rs6000_gimple_fold_builtin): Likewise.
5988         (altivec_init_builtins): Add code to define
5989         __builtin_altivec_lvx_v1ti function.
5990
5991 2018-03-22  Jakub Jelinek  <jakub@redhat.com>
5992
5993         PR inline-asm/84941
5994         * function.c (match_asm_constraints_1): Don't do the optimization
5995         if input isn't a REG, SUBREG, MEM or constant.
5996
5997 2018-03-22  Tom de Vries  <tom@codesourcery.com>
5998
5999         PR tree-optimization/84956
6000         * tree-ssa-tail-merge.c (find_clusters_1): Skip bbs with
6001         bb_has_abnormal_pred.
6002
6003 2018-03-22  Jakub Jelinek  <jakub@redhat.com>
6004
6005         PR sanitizer/85018
6006         * dwarf2asm.c (dw2_output_indirect_constant_1): Set
6007         DECL_INITIAL (decl) to decl at the end.
6008         * varasm.c (use_blocks_for_decl_p): Revert the 2018-03-20 change,
6009         adjust the comment.
6010
6011 2018-03-21  Joseph Myers  <joseph@codesourcery.com>
6012
6013         * doc/extend.texi (__builtin_tgmath): Document when complex
6014         integer types are treated as _Complex _Float64.
6015
6016 2018-03-21  Tom de Vries  <tom@codesourcery.com>
6017
6018         * doc/extend.texi (__builtin_extend_pointer): Remove pasto.
6019
6020 2018-03-21  Jakub Jelinek  <jakub@redhat.com>
6021
6022         PR tree-optimization/84960
6023         * tree-cfg.c (remove_bb): Don't move forced labels into bb->prev_bb
6024         if it is ENTRY block, move them into single succ of ENTRY in that case.
6025
6026 2018-03-21  Richard Sandiford  <richard.sandiford@linaro.org>
6027
6028         PR tree-optimization/84811
6029         * poly-int.h (poly_span_traits): Remove the T3 parameter and
6030         promote HOST_WIDE_INT T2 - T1 results to unsigned HOST_WIDE_INT.
6031         (maybe_in_range_p, known_in_range_p, ranges_known_overlap_p):
6032         (known_subrange_p): Update accordingly.  Cast each value involved
6033         in the size comparison, rather than casting the result of the
6034         subtraction.
6035
6036 2018-03-21  Jakub Jelinek  <jakub@redhat.com>
6037
6038         PR tree-optimization/84982
6039         * gimple-ssa-store-merging.c (invert_op): Handle boolean inversion
6040         by flipping the least significant bit rather than all bits from
6041         bitpos to bitpos + bitsize - 1.
6042
6043 2018-03-21  Nathan Sidwell  <nathan@acm.org>
6044
6045         * doc/extend.texi (Deprecated Features): Remove mention of
6046         long-deleted deprecations.
6047
6048 2018-03-21  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
6049
6050         PR jit/84288
6051         * configure.ac (gcc_cv_ld_soname) <*-*-solaris2*>: Set.
6052         * configure: Regenerate.
6053
6054 2018-03-21  Tom de Vries  <tom@codesourcery.com>
6055
6056         PR tree-optimization/83126
6057         * tree-parloops.c (num_phis): New function.
6058         (gen_parallel_loop): Detect and handle canonicalize_loop_ivs failure.
6059
6060 2018-03-21  Nathan Sidwell  <nathan@acm.org>
6061
6062         * doc/extend.texi (Deprecated Features): Update deprecated flags,
6063         mention anon-struct/union members and trailing attributes.
6064
6065 2018-03-21  Bin Cheng  <bin.cheng@arm.com>
6066
6067         PR tree-optimization/84969
6068         * tree-loop-distribution.c (fuse_memset_builtins): Don't reorder
6069         builtin memset partitions if they set different rhs values.
6070
6071 2018-03-21  Jakub Jelinek  <jakub@redhat.com>
6072
6073         PR rtl-optimization/84989
6074         * simplify-rtx.c (simplify_unary_operation_1): Don't try to simplify
6075         VEC_DUPLICATE with scalar result mode.
6076
6077 2018-03-21  Martin Liska  <mliska@suse.cz>
6078
6079         PR ipa/84963
6080         * ipa-icf.c (sem_item_optimizer::fixup_points_to_sets): Remove
6081         not intended return statement.
6082
6083 2018-03-21  Martin Liska  <mliska@suse.cz>
6084
6085         PR target/84988
6086         * tree-chkp.c (CHKP_ARRAY_MAX_CHECK_STEPS): Define a new macro.
6087         (chkp_find_bound_slots_1): Limit number of iterations.
6088
6089 2018-03-20  David H. Gutteridge  <dhgutteridge@sympatico.ca>
6090
6091         PR target/84838
6092         * Minor grammar fixes for x86 options.
6093
6094 2018-03-20  Jakub Jelinek  <jakub@redhat.com>
6095
6096         PR debug/84875
6097         * dce.c (delete_unmarked_insns): Don't remove frame related noop moves
6098         holding REG_CFA_RESTORE notes, instead turn them into a USE.
6099
6100 2018-03-20  Peter Bergner  <bergner@vnet.ibm.com>
6101
6102         PR target/83789
6103         * config/rs6000/altivec.md (altivec_lvx_<mode>_2op): Delete define_insn.
6104         (altivec_lvx_<mode>_1op): Likewise.
6105         (altivec_stvx_<mode>_2op): Likewise.
6106         (altivec_stvx_<mode>_1op): Likewise.
6107         (altivec_lvx_<VM2:mode>): New define_expand.
6108         (altivec_stvx_<VM2:mode>): Likewise.
6109         (altivec_lvx_<VM2:mode>_2op_<P:mptrsize>): New define_insn.
6110         (altivec_lvx_<VM2:mode>_1op_<P:mptrsize>): Likewise.
6111         (altivec_stvx_<VM2:mode>_2op_<P:mptrsize>): Likewise.
6112         (altivec_stvx_<VM2:mode>_1op_<P:mptrsize>): Likewise.
6113         * config/rs6000/rs6000-p8swap.c (rs6000_gen_stvx): Use new expanders.
6114         (rs6000_gen_lvx): Likewise.
6115         * config/rs6000/rs6000.c (altivec_expand_lv_builtin): Likewise.
6116         (altivec_expand_stv_builtin): Likewise.
6117         (altivec_expand_builtin): Likewise.
6118         * config/rs6000/vector.md: Likewise.
6119
6120 2018-03-20  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
6121
6122         PR target/82518
6123         * config/arm/arm.c (arm_array_mode_supported_p): Return false for
6124         BYTES_BIG_ENDIAN.
6125
6126 2018-03-20  Richard Biener  <rguenther@suse.de>
6127
6128         PR target/84986
6129         * config/i386/i386.c (ix86_add_stmt_cost): Only cost
6130         sign-conversions as zero, fall back to standard scalar_stmt
6131         cost for the rest.
6132
6133 2018-03-20  Martin Liska  <mliska@suse.cz>
6134
6135         PR ipa/84825
6136         * predict.c (rebuild_frequencies): Handle case when we have
6137         PROFILE_ABSENT, but flag_guess_branch_prob is false.
6138
6139 2018-03-20  Jakub Jelinek  <jakub@redhat.com>
6140
6141         PR target/84990
6142         * dwarf2asm.c (dw2_output_indirect_constant_1): Temporarily turn off
6143         flag_section_anchors.
6144         * varasm.c (use_blocks_for_decl_p): Remove hack for
6145         dw2_force_const_mem.
6146
6147         PR target/84845
6148         * config/aarch64/aarch64.md (*aarch64_reg_<mode>3_neg_mask2): Rename
6149         to ...
6150         (*aarch64_<optab>_reg_<mode>3_neg_mask2): ... this.  If pseudos can't
6151         be created, use lowpart_subreg of operands[0] rather than operands[0]
6152         itself.
6153         (*aarch64_reg_<mode>3_minus_mask): Rename to ...
6154         (*aarch64_ashl_reg_<mode>3_minus_mask): ... this.
6155         (*aarch64_<optab>_reg_di3_mask2): Use const_int_operand predicate
6156         and n constraint instead of aarch64_shift_imm_di and Usd.
6157         (*aarch64_reg_<optab>_minus<mode>3): Rename to ...
6158         (*aarch64_<optab>_reg_minus<mode>3): ... this.
6159
6160 2018-03-20  Sudakshina Das  <sudi.das@arm.com>
6161
6162         PR target/82989
6163         * config/arm/neon.md (ashldi3_neon): Update ?s for constraints
6164         to favor GPR over NEON registers.
6165         (<shift>di3_neon): Likewise.
6166
6167 2018-03-20  Tom de Vries  <tom@codesourcery.com>
6168
6169         PR target/84952
6170         * config/nvptx/nvptx.c (nvptx_single): Don't neuter bar.sync.
6171         (nvptx_process_pars): Emit bar.sync asap and alap.
6172
6173 2018-03-20  Tom de Vries  <tom@codesourcery.com>
6174
6175         PR target/84954
6176         * config/nvptx/nvptx.c (prevent_branch_around_nothing): Also update
6177         seen_label if seen_label is already set.
6178
6179 2018-03-20  Jakub Jelinek  <jakub@redhat.com>
6180
6181         PR target/84945
6182         * config/i386/i386.c (fold_builtin_cpu): For features above 31
6183         use __cpu_features2 variable instead of __cpu_model.__cpu_features[0].
6184         Use 1U instead of 1.  Formatting fixes.
6185
6186         PR c/84953
6187         * builtins.c (fold_builtin_strpbrk): For strpbrk(x, "") use type
6188         instead of TREE_TYPE (s1) for the return value.
6189
6190 2018-03-19  Jakub Jelinek  <jakub@redhat.com>
6191
6192         PR tree-optimization/84946
6193         * gimple-ssa-store-merging.c (mem_valid_for_store_merging): Compute
6194         bitsize + bitsize in poly_uint64 rather than poly_int64.
6195
6196         PR sanitizer/78651
6197         * dwarf2asm.c: Include fold-const.c.
6198         (dw2_output_indirect_constant_1): Set DECL_INITIAL (decl) to ADDR_EXPR
6199         of decl rather than decl itself.
6200
6201         PR rtl-optimization/84643
6202         * memmodel.h (enum memmodel): Add MEMMODEL_MAX enumerator.
6203
6204 2018-03-19  Maxim Ostapenko  <m.ostapenko@samsung.com>
6205
6206         PR sanitizer/78651
6207         * dwarf2asm.c (dw2_output_indirect_constant_1): Disable ASan before
6208         calling assemble_variable.
6209
6210 2018-03-19  Sudakshina Das  <sudi.das@arm.com>
6211
6212         PR target/81647
6213         * config/aarch64/aarch64-simd.md (vec_cmp<mode><v_int_equiv>): Modify
6214         instructions for UNLT, UNLE, UNGT, UNGE, UNEQ, UNORDERED and ORDERED.
6215
6216 2018-03-19  Jim Wilson  <jimw@sifive.com>
6217
6218         PR bootstrap/84856
6219         * config/riscv/riscv.c (riscv_function_arg_boundary): Use
6220         PREFERRED_STACK_BOUNDARY instead of STACK_BOUNDARY.
6221         (riscv_first_stack_step): Likewise.
6222         (riscv_option_override): Use STACK_BOUNDARY instead of
6223         MIN_STACK_BOUNDARY.
6224         * config/riscv/riscv.h (STACK_BOUNDARY): Renamed from
6225         MIN_STACK_BOUNDARY.
6226         (BIGGEST_ALIGNMENT): Set to 128.
6227         (PREFERRED_STACK_BOUNDARY): Renamed from STACK_BOUNDARY.
6228         (RISCV_STACK_ALIGN): Use PREFERRED_STACK_BOUNDARY instead of
6229         STACK_BOUNDARY.
6230
6231 2018-03-19  Richard Biener  <rguenther@suse.de>
6232
6233         PR tree-optimization/84933
6234         * tree-vrp.c (set_and_canonicalize_value_range): Treat out-of-bound
6235         values as -INF/INF when canonicalizing an ANTI_RANGE to a RANGE.
6236
6237 2018-03-19  Richard Biener  <rguenther@suse.de>
6238
6239         PR tree-optimization/84859
6240         * tree-ssa-phiopt.c (single_trailing_store_in_bb): New function.
6241         (cond_if_else_store_replacement): Perform sinking operation on
6242         single-store BBs regardless of MAX_STORES_TO_SINK setting.
6243         Generalize what a BB with a single eligible store is.
6244
6245 2018-03-19  Richard Biener  <rguenther@suse.de>
6246
6247         PR tree-optimization/84929
6248         * tree-data-ref.c (analyze_siv_subscript_cst_affine): Guard
6249         chrec_is_positive against non-chrec arg.
6250
6251 2018-03-19  Tamar Christina  <tamar.christina@arm.com>
6252
6253         PR target/84711
6254         * config/arm/arm.c (arm_can_change_mode_class): revert r258554.
6255
6256 2018-03-18  Martin Liska  <mliska@suse.cz>
6257
6258         PR rtl-optimization/84635
6259         * regrename.c (build_def_use): Use matches_mode only when
6260         matches >= 0.
6261
6262 2018-03-18  Richard Sandiford  <richard.sandiford@linaro.org>
6263
6264         PR tree-optimization/84913
6265         * tree-vect-loop.c (vectorizable_reduction): Don't try to
6266         vectorize chains of COND_EXPRs.
6267
6268 2018-03-18  Chung-Ju Wu  <jasonwucj@gmail.com>
6269
6270         * config/nds32/nds32.h (MAX_REGS_PER_ADDRESS): Fix the value.
6271
6272 2018-03-18  Chung-Ju Wu  <jasonwucj@gmail.com>
6273
6274         * config/nds32/nds32.h (LOGICAL_OP_NON_SHORT_CIRCUIT): Define.
6275
6276 2018-03-18  Chung-Ju Wu  <jasonwucj@gmail.com>
6277
6278         * config/nds32/nds32.h (CLZ_DEFINED_VALUE_AT_ZERO): Define.
6279
6280 2018-03-17  Chung-Ju Wu  <jasonwucj@gmail.com>
6281             Kito Cheng  <kito.cheng@gmail.com>
6282
6283         * config/nds32/nds32-protos.h (nds32_adjust_reg_alloc_order): Declare.
6284         * config/nds32/nds32.c (nds32_reg_alloc_order_for_speed): New array.
6285         (nds32_adjust_reg_alloc_order): New function.
6286         * config/nds32/nds32.h (ADJUST_REG_ALLOC_ORDER): Define.
6287
6288 2018-03-17  Kito Cheng  <kito.cheng@gmail.com>
6289
6290         * config/nds32/nds32.c (nds32_asm_output_mi_thunk,
6291         nds32_print_operand, nds32_print_operand_address): Use
6292         HOST_WIDE_INT_PRINT_DEC instead.
6293
6294 2018-03-17  Chung-Ju Wu  <jasonwucj@gmail.com>
6295
6296         * config/nds32/nds32.c (nds32_register_priority): Modify cost.
6297
6298 2018-03-17  Jakub Jelinek  <jakub@redhat.com>
6299
6300         PR target/84902
6301         * config/i386/i386.c (initial_ix86_tune_features,
6302         initial_ix86_arch_features): Use unsigned HOST_WIDE_INT rather than
6303         unsigned long long.
6304         (set_ix86_tune_features): Change ix86_tune_mask from unsigned int
6305         to unsigned HOST_WIDE_INT, initialize to HOST_WIDE_INT_1U << ix86_tune
6306         rather than 1u << ix86_tune.  Formatting fix.
6307         (ix86_option_override_internal): Change ix86_arch_mask from
6308         unsigned int to unsigned HOST_WIDE_INT, initialize to
6309         HOST_WIDE_INT_1U << ix86_arch rather than 1u << ix86_arch.
6310         (ix86_function_specific_restore): Likewise.
6311
6312 2018-03-16  Jakub Jelinek  <jakub@redhat.com>
6313
6314         PR target/84899
6315         * postreload.c (reload_combine_recognize_pattern): Perform
6316         INTVAL addition in unsigned HOST_WIDE_INT type to avoid UB and
6317         truncate_int_for_mode the result for the destination's mode.
6318
6319         PR c/84909
6320         * hsa-gen.c (mem_type_for_type): Fix comment typo.
6321         * tree-vect-loop-manip.c (vect_create_cond_for_niters_checks):
6322         Likewise.
6323         * gimple-ssa-warn-restrict.c (builtin_memref::set_base_and_offset):
6324         Likewise.
6325
6326 2018-03-16  Vladimir Makarov  <vmakarov@redhat.com>
6327
6328         PR target/84876
6329         * lra-assigns.c (lra_split_hard_reg_for): Don't use
6330         regno_allocno_class_array and sorted_pseudos.
6331         * lra-constraints.c (spill_hard_reg_in_range): Ignore hard regs in
6332         insns where regno is used.
6333
6334 2018-03-16  Martin Liska  <mliska@suse.cz>
6335
6336         PR ipa/84833
6337         * multiple_target.c (create_dispatcher_calls): Redirect
6338         reference in the symbol table.
6339
6340 2018-03-16  Martin Liska  <mliska@suse.cz>
6341
6342         PR ipa/84722
6343         * multiple_target.c (create_dispatcher_calls): Redirect also
6344         an alias.
6345
6346 2018-03-16  Jakub Jelinek  <jakub@redhat.com>
6347
6348         PR c++/79937
6349         PR c++/82410
6350         * tree.h (TARGET_EXPR_NO_ELIDE): Define.
6351         * gimplify.c (gimplify_modify_expr_rhs): Don't elide TARGET_EXPRs with
6352         TARGET_EXPR_NO_ELIDE flag set unless *expr_p is INIT_EXPR.
6353
6354 2018-03-16  Julia Koval  <julia.koval@intel.com>
6355
6356         * doc/invoke.texi (Skylake Server): Add CLWB.
6357         Cannonlake): Remove CLWB.
6358
6359 2018-03-16  Jakub Jelinek  <jakub@redhat.com>
6360
6361         PR tree-optimization/84841
6362         * tree-ssa-reassoc.c (INTEGER_CONST_TYPE): Change to 1 << 4 from
6363         1 << 3.
6364         (FLOAT_ONE_CONST_TYPE): Define.
6365         (constant_type): Return FLOAT_ONE_CONST_TYPE for -1.0 and 1.0.
6366         (sort_by_operand_rank): Put entries with higher constant_type last
6367         rather than first to match comments.
6368
6369 2018-03-15  Sandra Loosemore  <sandra@codesourcery.com>
6370
6371         * config/nios2/nios2.md (movsi_internal): Fix thinko in
6372         split predicate.
6373
6374 2018-03-15  Jakub Jelinek  <jakub@redhat.com>
6375
6376         PR c++/79085
6377         * calls.c (expand_call): For TREE_ADDRESSABLE rettype ignore alignment
6378         check and use address of target always.
6379
6380 2018-03-15  H.J. Lu  <hongjiu.lu@intel.com>
6381
6382         PR target/84574
6383         * config/i386/i386.c (indirect_thunk_needed): Update comments.
6384         (indirect_thunk_bnd_needed): Likewise.
6385         (indirect_thunks_used): Likewise.
6386         (indirect_thunks_bnd_used): Likewise.
6387         (indirect_return_needed): New.
6388         (indirect_return_bnd_needed): Likewise.
6389         (output_indirect_thunk_function): Add a bool argument for
6390         function return.
6391         (output_indirect_thunk_function): Don't generate alias for
6392         function return thunk.
6393         (ix86_code_end): Call output_indirect_thunk_function to generate
6394         function return thunks.
6395         (ix86_output_function_return): Set indirect_return_bnd_needed
6396         and indirect_return_needed instead of indirect_thunk_bnd_needed
6397         and indirect_thunk_needed.
6398
6399 2018-03-15  Olga Makhotina  <olga.makhotina@intel.com>
6400
6401         * config/i386/sgxintrin.h (_enclv_u32): New intrinsic.
6402         (__enclv_bc, __enclv_cd, __enclv_generic): New definitions.
6403         (ERDINFO, ETRACKC, ELDBC, ELDUC): New leaves.
6404
6405 2018-03-15  David Malcolm  <dmalcolm@redhat.com>
6406             Paul Hua <paul.hua.gm@gmail.com>
6407
6408         PR c/84852
6409         * gcc.dg/fixits-pr84852-1.c: Fix filename in dg-regexp.
6410
6411 2018-03-15  Segher Boessenkool  <segher@kernel.crashing.org>
6412
6413         * config/rs6000/rs6000.c (abi_v4_pass_in_fpr): Add back the
6414         TARGET_DOUBLE_FLOAT and TARGET_SINGLE_FLOAT conditions on the DFmode
6415         resp. SFmode cases.
6416
6417 2018-03-15  Tamar Christina  <tamar.christina@arm.com>
6418
6419         PR target/84711
6420         * config/arm/arm.c (arm_can_change_mode_class): Use GET_MODE_UNIT_SIZE
6421         instead of GET_MODE_SIZE when comparing Units.
6422
6423 2018-03-15  Vladimir Mezentsev  <vladimir.mezentsev@oracle.com>
6424
6425         PR target/68256
6426         * varasm.c (hash_section): Return an unchangeble hash value
6427         * config/aarch64/aarch64.c (aarch64_use_blocks_for_constant_p):
6428         Return !aarch64_can_use_per_function_literal_pools_p ().
6429
6430 2018-03-15  Jakub Jelinek  <jakub@redhat.com>
6431
6432         PR target/84860
6433         * optabs.c (emit_conditional_move): Pass address of cmode's copy
6434         rather than address of cmode as last argument to prepare_cmp_insn.
6435
6436 2018-03-15  Julia Koval  <julia.koval@intel.com>
6437
6438         * config/i386/i386.c (F_AVX512VBMI2, F_GFNI, F_VPCLMULQDQ,
6439         F_AVX512VNNI, F_AVX512BITALG): New.
6440
6441 2018-03-14  John David Anglin  <danglin@gcc.gnu.org>
6442
6443         PR target/83451
6444         * config/pa/pa.c (pa_emit_move_sequence):  Always emit secondary reload
6445         insn for floating-point loads and stores.
6446
6447 2018-03-14  Carl Love  <cel@us.ibm.com>
6448
6449         * config/rs6000/rs6000-c.c: Add macro definitions for
6450         ALTIVEC_BUILTIN_VEC_PERMXOR.
6451         * config/rs6000/rs6000.h: Add #define for vec_permxor builtin.
6452         * config/rs6000/rs6000-builtin.def: Add macro expansions for VPERMXOR.
6453         * config/rs6000/altivec.md (altivec_vpermxor): New define expand.
6454         * config/rs6000/rs6000-p8swap.c (rtx_is_swappable_p): Add case
6455         UNSPEC_VPERMXOR.
6456         * config/doc/extend.texi: Add prototypes for vec_permxor.
6457
6458 2018-03-14  David Malcolm  <dmalcolm@redhat.com>
6459
6460         PR c/84852
6461         * diagnostic-show-locus.c (class layout_point): Convert m_line
6462         from int to linenum_type.
6463         (line_span::comparator): Use linenum "compare" function when
6464         comparing line numbers.
6465         (test_line_span): New function.
6466         (layout_range::contains_point): Convert param "row" from int to
6467         linenum_type.
6468         (layout_range::intersects_line_p): Likewise.
6469         (layout::will_show_line_p): Likewise.
6470         (layout::print_source_line): Likewise.
6471         (layout::should_print_annotation_line_p): Likewise.
6472         (layout::print_annotation_line): Likewise.
6473         (layout::print_leading_fixits): Likewise.
6474         (layout::annotation_line_showed_range_p): Likewise.
6475         (struct line_corrections): Likewise for field m_row.
6476         (line_corrections::line_corrections): Likewise for param "row".
6477         (layout::print_trailing_fixits): Likewise.
6478         (layout::get_state_at_point): Likewise.
6479         (layout::get_x_bound_for_row): Likewise.
6480         (layout::print_line): Likewise.
6481         (diagnostic_show_locus): Likewise for locals "last_line" and "row".
6482         (selftest::diagnostic_show_locus_c_tests): Call test_line_span.
6483         * input.c (selftest::test_linenum_comparisons): New function.
6484         (selftest::input_c_tests): Call it.
6485         * selftest.c (selftest::test_assertions): Test ASSERT_GT,
6486         ASSERT_GT_AT, ASSERT_LT, and ASSERT_LT_AT.
6487         * selftest.h (ASSERT_GT): New macro.
6488         (ASSERT_GT_AT): New macro.
6489         (ASSERT_LT): New macro.
6490         (ASSERT_LT_AT): New macro.
6491
6492 2018-03-14  Segher Boessenkool  <segher@kernel.crashing.org>
6493
6494         PR rtl-optimization/84780
6495         * combine.c (distribute_links): Don't make a link based on pc_rtx.
6496
6497 2018-03-14  Martin Liska  <mliska@suse.cz>
6498
6499         * tree.c (record_node_allocation_statistics): Use
6500         get_stats_node_kind.
6501         (get_stats_node_kind): New function extracted from
6502         record_node_allocation_statistics.
6503         (free_node): Use get_stats_node_kind.
6504
6505 2018-03-14  Richard Biener  <rguenther@suse.de>
6506
6507         * tree-ssa-pre.c (compute_antic_aux): Remove code that asserts
6508         that the value-set of ANTIC_IN doesn't grow.
6509
6510         Revert
6511         * tree-ssa-pre.c (struct bb_bitmap_sets): Add visited_with_visited_succs
6512         member.
6513         (BB_VISITED_WITH_VISITED_SUCCS): New define.
6514         (compute_antic): Initialize BB_VISITED_WITH_VISITED_SUCCS.
6515
6516 2018-03-14  Julia Koval  <julia.koval@intel.com>
6517
6518         * config.gcc (icelake-client, icelake-server): New.
6519         (icelake): Remove.
6520         * config/i386/i386.c (initial_ix86_tune_features): Extend to 64 bit.
6521         (initial_ix86_arch_features): Ditto.
6522         (PTA_SKYLAKE): Add SGX.
6523         (PTA_ICELAKE): Remove.
6524         (PTA_ICELAKE_CLIENT): New.
6525         (PTA_ICELAKE_SERVER): New.
6526         (ix86_option_override_internal): Split up icelake on icelake client and
6527         icelake server.
6528         (get_builtin_code_for_version): Ditto.
6529         (fold_builtin_cpu): Ditto.
6530         * config/i386/driver-i386.c (config/i386/driver-i386.c): Ditto.
6531         * config/i386/i386-c.c (ix86_target_macros_internal): Ditto
6532         * config/i386/i386.h (processor_type): Ditto.
6533         * doc/invoke.texi: Ditto.
6534
6535 2018-03-14  Jakub Jelinek  <jakub@redhat.com>
6536
6537         PR sanitizer/83392
6538         * sanopt.c (maybe_optimize_ubsan_ptr_ifn): Handle also
6539         INTEGER_CST offset, add it together with bitpos / 8 and
6540         sign extend based on POINTER_SIZE.
6541
6542         PR target/84844
6543         Revert
6544         2017-04-20  Uros Bizjak  <ubizjak@gmail.com>
6545
6546         PR target/78090
6547         * config/i386/constraints.md (Yc): New register constraint.
6548         * config/i386/i386.md (*float<SWI48:mode><MODEF:mode>2_mixed):
6549         Use Yc constraint for alternative 2 of operand 0.  Remove
6550         preferred_for_speed attribute.
6551
6552 2018-03-14  Richard Biener  <rguenther@suse.de>
6553
6554         PR tree-optimization/84830
6555         * tree-ssa-pre.c (compute_antic_aux): Intersect the new ANTIC_IN
6556         with the old one to avoid oscillations.
6557
6558 2018-03-13  Vladimir Makarov  <vmakarov@redhat.com>
6559
6560         PR target/83712
6561         * lra-assigns.c (find_all_spills_for): Ignore uninteresting
6562         pseudos.
6563         (assign_by_spills): Return a flag of reload assignment failure.
6564         Do not process the reload assignment failures.  Do not spill other
6565         reload pseudos if they has the same reg class.  Update n if
6566         necessary.
6567         (lra_assign): Add a return arg.  Set up from the result of
6568         assign_by_spills call.
6569         (find_reload_regno_insns, lra_split_hard_reg_for): New functions.
6570         * lra-constraints.c (split_reg): Add a new arg.  Use it instead of
6571         usage_insns if it is not NULL.
6572         (spill_hard_reg_in_range): New function.
6573         (split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
6574         * lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
6575         function prototypes.
6576         (lra_assign): Change prototype.
6577         * lra.c (lra): Add code to deal with fails by splitting hard reg
6578         live ranges.
6579
6580 2018-03-01  Palmer Dabbelt  <palmer@sifive.com>
6581
6582         * config/riscv/riscv.opt (mrelax): New option.
6583         * config/riscv/riscv.c (riscv_file_start): Emit ".option
6584         "norelax" when riscv_mrelax is disabled.
6585         * doc/invoke.texi (RISC-V): Document "-mrelax" and "-mno-relax".
6586
6587 2018-03-13  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
6588
6589         PR target/84743
6590         * config/rs6000/rs6000.c (rs6000_reassociation_width): Disable parallel
6591         reassociation for int modes.
6592
6593 2018-03-13  Richard Sandiford  <richard.sandiford@linaro.org>
6594
6595         * tree-vect-loop-manip.c (vect_maybe_permute_loop_masks):
6596         Reverse the choice between VEC_UNPACK_LO_EXPR and VEC_UNPACK_HI_EXPR
6597         for big-endian.
6598         * config/aarch64/iterators.md (hi_lanes_optab): New int attribute.
6599         * config/aarch64/aarch64-sve.md
6600         (*aarch64_sve_<perm_insn><perm_hilo><mode>): Rename to...
6601         (aarch64_sve_<perm_insn><perm_hilo><mode>): ...this.
6602         (*extend<mode><Vwide>2): Rename to...
6603         (aarch64_sve_extend<mode><Vwide>2): ...this.
6604         (vec_unpack<su>_<perm_hilo>_<mode>): Turn into a define_expand,
6605         renaming the old pattern to...
6606         (aarch64_sve_punpk<perm_hilo>_<mode>): ...this.  Only define
6607         unsigned packs.
6608         (vec_unpack<su>_<perm_hilo>_<SVE_BHSI:mode>): Turn into a
6609         define_expand, renaming the old pattern to...
6610         (aarch64_sve_<su>unpk<perm_hilo>_<SVE_BHSI:mode>): ...this.
6611         (*vec_unpacku_<perm_hilo>_<mode>_no_convert): Delete.
6612         (vec_unpacks_<perm_hilo>_<mode>): Take BYTES_BIG_ENDIAN into
6613         account when deciding which SVE instruction the optab should use.
6614         (vec_unpack<su_optab>_float_<perm_hilo>_vnx4si): Likewise.
6615
6616 2018-03-13  Richard Sandiford  <richard.sandiford@linaro.org>
6617
6618         * config/aarch64/aarch64.md (V4_REGNUM, V8_REGNUM, V12_REGNUM)
6619         (V20_REGNUM, V24_REGNUM, V28_REGNUM, P1_REGNUM, P2_REGNUM, P3_REGNUM)
6620         (P4_REGNUM, P5_REGNUM, P6_REGNUM, P8_REGNUM, P9_REGNUM, P10_REGNUM)
6621         (P11_REGNUM, P12_REGNUM, P13_REGNUM, P14_REGNUM): New define_constants.
6622         (tlsdesc_small_<mode>): Turn a define_expand and use
6623         tlsdesc_small_sve_<mode> for SVE.  Rename original define_insn to...
6624         (tlsdesc_small_advsimd_<mode>): ...this.
6625         (tlsdesc_small_sve_<mode>): New pattern.
6626
6627 2018-03-13  Richard Sandiford  <richard.sandiford@linaro.org>
6628
6629         * config/aarch64/iterators.md (UNSPEC_SMUL_HIGHPART)
6630         (UNSPEC_UMUL_HIGHPART): New constants.
6631         (MUL_HIGHPART): New int iteraor.
6632         (su): Handle UNSPEC_SMUL_HIGHPART and UNSPEC_UMUL_HIGHPART.
6633         * config/aarch64/aarch64-sve.md (<su>mul<mode>3_highpart): New
6634         define_expand.
6635         (*<su>mul<mode>3_highpart): New define_insn.
6636
6637 2018-03-13  Eric Botcazou  <ebotcazou@adacore.com>
6638
6639         PR lto/84805
6640         * ipa-devirt.c (odr_subtypes_equivalent_p): Do not get the ODR type of
6641         incomplete types.
6642
6643 2018-03-13  Martin Liska  <mliska@suse.cz>
6644
6645         PR ipa/84658.
6646         * (sem_item_optimizer::sem_item_optimizer): Initialize new
6647         vector.
6648         (sem_item_optimizer::~sem_item_optimizer): Release it.
6649         (sem_item_optimizer::merge_classes): Register variable aliases.
6650         (sem_item_optimizer::fixup_pt_set): New function.
6651         (sem_item_optimizer::fixup_points_to_sets): Likewise.
6652         * ipa-icf.h: Declare new variables and functions.
6653
6654 2018-03-13  Jakub Jelinek  <jakub@redhat.com>
6655
6656         PR middle-end/84834
6657         * match.pd ((A & C) != 0 ? D : 0): Use INTEGER_CST@2 instead of
6658         integer_pow2p@2 and test integer_pow2p in condition.
6659         (A < 0 ? C : 0): Similarly for @1.
6660
6661         PR middle-end/84831
6662         * stmt.c (parse_output_constraint): If the CONSTRAINT_LEN (*p, p)
6663         characters starting at p contain '\0' character, don't look beyond
6664         that.
6665
6666         PR target/84827
6667         * config/i386/i386.md (round<mode>2): For 387 fancy math, disable
6668         pattern if -ftrapping-math -fno-fp-int-builtin-inexact.
6669
6670         PR target/84828
6671         * reg-stack.c (change_stack): Change update_end var from int to
6672         rtx_insn *, if non-NULL don't update just BB_END (current_block), but
6673         also call set_block_for_insn on the newly added insns and rescan.
6674
6675         PR target/84786
6676         * config/i386/sse.md (sse2_loadhpd): Use Yv constraint rather than v
6677         on the last operand.
6678
6679         PR c++/84704
6680         * tree.c (stabilize_reference_1): Return save_expr (e) for
6681         STATEMENT_LIST even if it doesn't have side-effects.
6682
6683 2018-03-12  Jonathan Wakely  <jwakely@redhat.com>
6684
6685         * doc/invoke.texi (-mclflushopt): Fix spelling of option.
6686
6687 2018-03-12  Renlin Li  <renlin.li@arm.com>
6688
6689         * config/aarch64/aarch64.md (movhf_aarch64): Fix mode argument to
6690         aarch64_output_scalar_simd_mov_immediate.
6691
6692 2018-03-12  Martin Sebor  <msebor@redhat.com>
6693
6694         PR tree-optimization/83456
6695         * gimple-fold.c (gimple_fold_builtin_memory_op): Avoid warning
6696         for perfectly overlapping calls to memcpy.
6697         (gimple_fold_builtin_memory_chk): Same.
6698         (gimple_fold_builtin_strcpy): Handle no-warning.
6699         (gimple_fold_builtin_stxcpy_chk): Same.
6700         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Handle no-warning.
6701
6702 2018-03-12  Segher Boessenkool  <segher@kernel.crashing.org>
6703
6704         * config/rs6000/rs6000.c (abi_v4_pass_in_fpr): Add bool "named"
6705         parameter.  Use it for SFmode.
6706         (rs6000_function_arg_advance_1): Adjust.
6707         (rs6000_function_arg): Adjust.
6708         (rs6000_gimplify_va_arg): Pass false for that new parameter.
6709
6710 2018-03-12  Segher Boessenkool  <segher@kernel.crashing.org>
6711
6712         PR rtl-optimization/84169
6713         PR rtl-optimization/84780
6714         * combine.c (can_combine_p): Check for a 2-insn combination whether
6715         the destination register is used between the two insns, too.
6716
6717 2018-03-12  Richard Biener  <rguenther@suse.de>
6718
6719         PR tree-optimization/84803
6720         * tree-if-conv.c (ifcvt_memrefs_wont_trap): Don't do anything
6721         for refs DR analysis didn't process.
6722
6723 2018-03-12  Richard Biener  <rguenther@suse.de>
6724
6725         PR tree-optimization/84777
6726         * tree-ssa-loop-ch.c (should_duplicate_loop_header_p): For
6727         force-vectorize loops ignore whether we are optimizing for size.
6728
6729 2018-03-12  Chung-Ju Wu  <jasonwucj@gmail.com>
6730
6731         * config/nds32/nds32.c (nds32_md_asm_adjust): New function.
6732         (TARGET_MD_ASM_ADJUST): Define.
6733
6734 2018-03-12  Monk Chiang  <sh.chiang04@gmail.com>
6735             Kito Cheng  <kito.cheng@gmail.com>
6736             Chung-Ju Wu  <jasonwucj@gmail.com>
6737
6738         * config/nds32/nds32.c (nds32_compute_stack_frame,
6739         nds32_emit_stack_push_multiple, nds32_emit_stack_pop_multiple,
6740         nds32_emit_stack_v3push, nds32_emit_stack_v3pop,
6741         nds32_emit_adjust_frame, nds32_expand_prologue, nds32_expand_epilogue,
6742         nds32_expand_prologue_v3push, nds32_expand_epilogue_v3pop): Refine.
6743         * config/nds32/nds32.h (NDS32_FIRST_CALLEE_SAVE_GPR_REGNUM,
6744         NDS32_LAST_CALLEE_SAVE_GPR_REGNUM, NDS32_V3PUSH_AVAILABLE_P): New.
6745         * config/nds32/nds32.md (prologue, epilogue): Use macro
6746         NDS32_V3PUSH_AVAILABLE_P to do checking.
6747
6748 2018-03-11  Jakub Jelinek  <jakub@redhat.com>
6749
6750         PR debug/58150
6751         * dwarf2out.c (gen_enumeration_type_die): Don't guard adding
6752         DW_AT_declaration for ENUM_IS_OPAQUE on -gdwarf-4 or -gno-strict-dwarf,
6753         but on TYPE_SIZE.  Don't do anything for ENUM_IS_OPAQUE if not creating
6754         a new die.  Don't set TREE_ASM_WRITTEN if ENUM_IS_OPAQUE.  Guard
6755         addition of most attributes on !orig_type_die or the attribute not
6756         being present already.  Assert TYPE_VALUES is NULL for ENUM_IS_OPAQUE.
6757
6758 2018-03-11  Kito Cheng  <kito.cheng@gmail.com>
6759             Chung-Ju Wu  <jasonwucj@gmail.com>
6760
6761         * config/nds32/nds32.c (nds32_cpu_cpp_builtins): Modify to define
6762         __NDS32_VH__ macro.
6763         * config/nds32/nds32.opt (mvh): New option.
6764
6765 2018-03-11  Kito Cheng  <kito.cheng@gmail.com>
6766             Chung-Ju Wu  <jasonwucj@gmail.com>
6767
6768         * config/nds32/nds32-protos.h (nds32_cpu_cpp_builtins): Declare
6769         function.
6770         * config/nds32/nds32.c (nds32_cpu_cpp_builtins): New function.
6771         * config/nds32/nds32.h (TARGET_CPU_CPP_BUILTINS): Modify its
6772         definition.
6773
6774 2018-03-11  Kito Cheng  <kito.cheng@gmail.com>
6775             Chung-Ju Wu  <jasonwucj@gmail.com>
6776
6777         * config/nds32/nds32-memory-manipulation.c (nds32_expand_strlen): New
6778         function.
6779         * config/nds32/nds32-multiple.md (strlensi): New pattern.
6780         * config/nds32/nds32-protos.h (nds32_expand_strlen): Declare function.
6781
6782 2018-03-11  Monk Chiang  <sh.chiang04@gmail.com>
6783             Kito Cheng  <kito.cheng@gmail.com>
6784             Chung-Ju Wu  <jasonwucj@gmail.com>
6785
6786         * config/nds32/constants.md (unspec_element): Add UNSPEC_FFB,
6787         UNSPEC_FFMISM and UNSPEC_FLMISM.
6788         * config/nds32/nds32-intrinsic.c (bdesc_2arg): Add builtin description
6789         for ffb, ffmism and flmism.
6790         * config/nds32/nds32-intrinsic.md (unspec_ffb): Define new pattern.
6791         (unspec_ffmism): Ditto.
6792         (unspec_flmism): Ditto.
6793         (nds32_expand_builtin_impl): Check if string extension is available.
6794         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_FFB,
6795         NDS32_BUILTIN_FFMISM and NDS32_BUILTIN_FLMISM.
6796
6797 2018-03-10  Vladimir Makarov  <vmakarov@redhat.com>
6798
6799         Reverting patch:
6800         2018-03-09  Vladimir Makarov  <vmakarov@redhat.com>
6801
6802         PR target/83712
6803         * lra-assigns.c (assign_by_spills): Return a flag of reload
6804         assignment failure.  Do not process the reload assignment
6805         failures.  Do not spill other reload pseudos if they has the same
6806         reg class.
6807         (lra_assign): Add a return arg.  Set up from the result of
6808         assign_by_spills call.
6809         (find_reload_regno_insns, lra_split_hard_reg_for): New functions.
6810         * lra-constraints.c (split_reg): Add a new arg.  Use it instead of
6811         usage_insns if it is not NULL.
6812         (spill_hard_reg_in_range): New function.
6813         (split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
6814         * lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
6815         function prototypes.
6816         (lra_assign): Change prototype.
6817         * lra.c (lra): Add code to deal with fails by splitting hard reg
6818         live ranges.
6819
6820 2018-03-10  H.J. Lu  <hongjiu.lu@intel.com>
6821
6822         PR target/84807
6823         * config/i386/i386.opt: Replace Enforcment with Enforcement.
6824
6825 2018-03-10  Alexandre Oliva  <aoliva@redhat.com>
6826
6827         PR debug/84620
6828         * dwarf2out.h (dw_val_class): Add dw_val_class_symview.
6829         (dw_val_node): Add val_symbolic_view.
6830         * dwarf2out.c (dw_line_info_table): Add symviews_since_reset.
6831         (symview_upper_bound): New.
6832         (new_line_info_table): Initialize symviews_since_reset.
6833         (dwarf2out_source_line): Count symviews_since_reset and set
6834         symview_upper_bound.
6835         (dw_val_equal_p): Handle symview.
6836         (add_AT_symview): New.
6837         (print_dw_val): Handle symview.
6838         (attr_checksum, attr_checksum_ordered): Likewise.
6839         (same_dw_val_p, size_of_die): Likewise.
6840         (value_format, output_die): Likewise.
6841         (add_high_low_attributes): Use add_AT_symview for entry_view.
6842         (dwarf2out_finish): Reset symview_upper_bound, clear
6843         zero_view_p.
6844
6845 2018-03-09  Peter Bergner  <bergner@vnet.ibm.com>
6846
6847         PR target/83969
6848         * config/rs6000/rs6000.c (rs6000_offsettable_memref_p): New prototype.
6849         Add strict argument and use it.
6850         (rs6000_split_multireg_move): Update for new strict argument.
6851         (mem_operand_gpr): Disallow all non-offsettable addresses.
6852         * config/rs6000/rs6000.md (*movdi_internal64): Use YZ constraint.
6853
6854 2018-03-09  Jakub Jelinek  <jakub@redhat.com>
6855
6856         PR target/84772
6857         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Mark va_arg_tmp
6858         temporary TREE_ADDRESSABLE before gimplification of BUILT_IN_MEMCPY.
6859         * config/powerpcspe/powerpcspe.c (rs6000_gimplify_va_arg): Likewise.
6860
6861         PR c++/84767
6862         * tree-inline.c (copy_tree_body_r): For INDIRECT_REF of a remapped
6863         decl, use remap_type if we want to use the type.
6864
6865 2018-03-09  Martin Sebor  <msebor@redhat.com>
6866
6867         PR tree-optimization/84526
6868         * gimple-ssa-warn-restrict.c (builtin_memref::set_base_and_offset):
6869         Remove dead code.
6870         (builtin_access::generic_overlap): Be prepared to handle non-array
6871         base objects.
6872
6873 2018-03-09  Alexandre Oliva  <aoliva@redhat.com>
6874
6875         PR rtl-optimization/84682
6876         * lra-constraints.c (process_address_1): Check is_address flag
6877         for address constraints.
6878         (process_alt_operands): Likewise.
6879         * lra.c (lra_set_insn_recog_data): Pass asm operand locs to
6880         preprocess_constraints.
6881         * recog.h (preprocess_constraints): Add oploc parameter.
6882         Adjust callers.
6883         * recog.c (preprocess_constraints): Test address_operand for
6884         CT_ADDRESS constraints.
6885
6886 2018-03-09  Vladimir Makarov  <vmakarov@redhat.com>
6887
6888         PR target/83712
6889         * lra-assigns.c (assign_by_spills): Return a flag of reload
6890         assignment failure.  Do not process the reload assignment
6891         failures.  Do not spill other reload pseudos if they has the same
6892         reg class.
6893         (lra_assign): Add a return arg.  Set up from the result of
6894         assign_by_spills call.
6895         (find_reload_regno_insns, lra_split_hard_reg_for): New functions.
6896         * lra-constraints.c (split_reg): Add a new arg.  Use it instead of
6897         usage_insns if it is not NULL.
6898         (spill_hard_reg_in_range): New function.
6899         (split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
6900         * lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
6901         function prototypes.
6902         (lra_assign): Change prototype.
6903         * lra.c (lra): Add code to deal with fails by splitting hard reg
6904         live ranges.
6905
6906 2018-03-09  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
6907
6908         PR target/83193
6909         * common/config/arm/arm-common.c (arm_parse_arch_option_name):
6910         Accept complain bool parameter.  Only emit errors if it is true.
6911         (arm_parse_cpu_option_name): Likewise.
6912         (arm_target_thumb_only): Adjust callers of the above.
6913         * config/arm/arm-protos.h (arm_parse_cpu_option_name): Adjust
6914         prototype to take a default true bool parameter.
6915         (arm_parse_arch_option_name): Likewise.
6916
6917 2018-03-09  David Malcolm  <dmalcolm@redhat.com>
6918             Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
6919
6920         PR jit/64089
6921         PR jit/84288
6922         * Makefile.in (LD_VERSION_SCRIPT_OPTION, LD_SONAME_OPTION): New.
6923         * configure: Regenerate.
6924         * configure.ac ("linker --version-script option"): New.
6925         ("linker soname option"): New.
6926
6927 2018-03-09  Richard Biener  <rguenther@suse.de>
6928
6929         PR tree-optimization/84775
6930         * tree-if-conv.c (add_bb_predicate_gimplified_stmts): Delink
6931         immediate uses of predicate stmts and mark them modified.
6932
6933         Revert
6934         PR tree-optimization/84178
6935         * tree-if-conv.c (combine_blocks): Move insert_gimplified_predicates
6936         to caller.
6937         (version_loop_for_if_conversion): Delay update_ssa call.
6938         (tree_if_conversion): Delay update_ssa until after predicate
6939         insertion.
6940
6941 2018-03-09  Eric Botcazou  <ebotcazou@adacore.com>
6942
6943         PR target/84763
6944         * config/i386/winnt.c (i386_pe_seh_cold_init): Use small pre-allocation
6945         when the function accesses prior frames.
6946
6947 2018-03-08  Jakub Jelinek  <jakub@redhat.com>
6948
6949         PR debug/84456
6950         * dwarf2out.c (dw_loc_list): If list && loc_list->first->next, call
6951         gen_llsym, otherwise call maybe_gen_llsym.
6952
6953         PR inline-asm/84742
6954         * recog.c (asm_operand_ok): Return 0 if multi-character constraint
6955         has ',' character inside of it.
6956
6957 2018-03-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
6958
6959         PR target/84748
6960         * config/aarch64/aarch64.md (*compare_cstore<mode>_insn): Mark pattern
6961         as clobbering CC_REGNUM.
6962
6963 2018-03-08  Richard Biener  <rguenther@suse.de>
6964
6965         PR middle-end/84552
6966         * tree-scalar-evolution.c: Include tree-into-ssa.h.
6967         (follow_copies_to_constant): Do not follow SSA names registered
6968         for update.
6969
6970 2018-03-08  Richard Biener  <rguenther@suse.de>
6971
6972         PR tree-optimization/84178
6973         * tree-if-conv.c (combine_blocks): Move insert_gimplified_predicates
6974         to caller.
6975         (version_loop_for_if_conversion): Delay update_ssa call.
6976         (tree_if_conversion): Delay update_ssa until after predicate
6977         insertion.
6978
6979 2018-03-08  David Malcolm  <dmalcolm@redhat.com>
6980
6981         PR tree-optimization/84178
6982         * tree-if-conv.c (release_bb_predicate): Remove the
6983         the assertion that the stmts have NULL use_ops.
6984         Discard the statements, asserting that they haven't
6985         yet been added to a BB.
6986
6987 2018-03-08  Richard Biener  <rguenther@suse.de>
6988
6989         PR tree-optimization/84746
6990         * tree-ssa-pre.c (find_leader_in_sets): Deal with SET1 being NULL.
6991         (phi_translate): Pass in destination ANTIC_OUT set.
6992         (phi_translate_1): Likewise.  For a simplified result lookup
6993         a leader in ANTIC_OUT and AVAIL_OUT, not the ANTIC_IN sets.
6994         (phi_translate_set): Adjust.
6995         (do_pre_regular_insertion): Likewise.
6996         (do_pre_partial_partial_insertion): Likewise.
6997
6998 2018-03-08  Martin Liska  <mliska@suse.cz>
6999
7000         PR gcov-profile/84735
7001         * doc/gcov.texi: Document usage of profile files.
7002         * gcov-io.h: Document changes in the format.
7003
7004 2018-03-08  Alexandre Oliva  <aoliva@redhat.com>
7005
7006         PR debug/84404
7007         PR debug/84408
7008         * dwarf2out.c (struct dw_line_info_table): Update comments for
7009         view == -1.
7010         (FORCE_RESET_NEXT_VIEW): New.
7011         (FORCE_RESETTING_VIEW_P): New.
7012         (RESETTING_VIEW_P): Check for -1 too.
7013         (ZERO_VIEW_P): Likewise.
7014         (new_line_info_table): Force-reset next view.
7015         (dwarf2out_begin_function): Likewise.
7016         (dwarf2out_source_line): Simplify zero_view_p initialization.
7017         Test FORCE_RESETTING_VIEW_P and RESETTING_VIEW_P instead of
7018         view directly.  Omit view when omitting .loc at line 0.
7019
7020 2018-03-08  Jakub Jelinek  <jakub@redhat.com>
7021
7022         PR tree-optimization/84740
7023         * tree-switch-conversion.c (process_switch): Call build_constructors
7024         only if info.phi_count is non-zero.
7025
7026         PR tree-optimization/84739
7027         * tree-tailcall.c (find_tail_calls): Check call arguments against
7028         DECL_ARGUMENTS (current_function_decl) rather than
7029         DECL_ARGUMENTS (func) when checking for tail recursion.
7030
7031 2018-03-07  Jakub Jelinek  <jakub@redhat.com>
7032
7033         * doc/contrib.texi: Add entries for Martin Liska, David Malcolm,
7034         Marek Polacek, extend Vladimir Makarov's, Jonathan Wakely's and
7035         Volker Reichelt's entry and add entries for people that perform
7036         GCC fuzzy testing and report numerous bugs.
7037
7038 2018-03-07  Segher Boessenkool  <segher@kernel.crashing.org>
7039
7040         PR target/82411
7041         * config/rs6000/rs6000.c (rs6000_elf_in_small_data_p): Don't put
7042         readonly data in sdata, if that is disabled.
7043         * config/rs6000/sysv4.opt (mreadonly-in-sdata): New option.
7044         * doc/invoke.texi (RS/6000 and PowerPC Options): Document
7045         -mreadonly-in-sdata option.
7046
7047 2018-03-07  Martin Sebor  <msebor@redhat.com>
7048
7049         PR tree-optimization/84468
7050         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Consider successor
7051         basic block when looking for nul assignment.
7052
7053 2018-03-07  Eric Botcazou  <ebotcazou@adacore.com>
7054
7055         PR target/84277
7056         * except.h (output_function_exception_table): Adjust prototype.
7057         * except.c (output_function_exception_table): Remove FNNAME parameter
7058         and add SECTION parameter.  Ouput one part of the table at a time.
7059         * final.c (final_scan_insn_1) <NOTE_INSN_SWITCH_TEXT_SECTIONS>: Output
7060         the first part of the exception table and emit unwind directives.
7061         * config/i386/i386-protos.h (i386_pe_end_cold_function): Declare.
7062         (i386_pe_seh_cold_init): Likewise.
7063         * config/i386/cygming.h (ASM_DECLARE_COLD_FUNCTION_NAME): New macro.
7064         (ASM_DECLARE_COLD_FUNCTION_SIZE): Likewise.
7065         * config/i386/i386.c (x86_expand_epilogue): Fix wording in comment.
7066         (ix86_output_call_insn): Emit a nop in one more case for SEH.
7067         * config/i386/winnt.c: Include except.h.
7068         (struct seh_frame_state): Add reg_offset, after_prologue and
7069         in_cold_section fields.
7070         (i386_pe_seh_end_prologue): Set seh->after_prologue.
7071         (i386_pe_seh_cold_init): New function.
7072         (i386_pe_seh_fini): Add COLD parameter and bail out if it is not equal
7073         to seh->in_cold_section.
7074         (seh_emit_push): Record the offset of the push.
7075         (seh_emit_save): Record the offet of the save.
7076         (i386_pe_seh_unwind_emit): Deal with NOTE_INSN_SWITCH_TEXT_SECTIONS.
7077         Test seh->after_prologue to disregard the epilogue.
7078         (i386_pe_end_function): Pass FALSE to i386_pe_seh_fini.
7079         (i386_pe_end_cold_function): New function.
7080
7081 2018-03-07  Jakub Jelinek  <jakub@redhat.com>
7082
7083         PR fortran/84565
7084         * config/aarch64/predicates.md (aarch64_simd_reg_or_zero): Use
7085         aarch64_simd_or_scalar_imm_zero rather than aarch64_simd_imm_zero.
7086
7087         PR c++/84704
7088         * gimple-expr.c (create_tmp_var_raw): Set DECL_NAMELESS flag
7089         on tmp_var.
7090         * tree-pretty-print.c (dump_decl_name): For TDF_COMPARE_DEBUG,
7091         don't print names of DECL_NAMELESS DECL_IGNORED_P decls.
7092
7093         PR middle-end/84723
7094         * multiple_target.c: Include tree-inline.h and intl.h.
7095         (expand_target_clones): Diagnose and fail if node->definition and
7096         !tree_versionable_function_p (node->decl).
7097
7098 2018-03-06  John David Anglin  <danglin@gcc.gnu.org>
7099
7100         * config/pa/pa.h (ASM_GENERATE_INTERNAL_LABEL): Revise to use
7101         sprint_ul.
7102         (ASM_OUTPUT_ADDR_VEC_ELT): Revise for above change.
7103         (ASM_OUTPUT_ADDR_DIFF_ELT): Likewise.
7104         * config/pa/pa64-hpux.h (ASM_GENERATE_INTERNAL_LABEL): Revise as above.
7105
7106 2018-03-06  Jakub Jelinek  <jakub@redhat.com>
7107
7108         PR target/84710
7109         * combine.c (try_combine): Use reg_or_subregno instead of handling
7110         just paradoxical SUBREGs and REGs.
7111
7112 2018-03-06  Claudiu Zissulescu  <claziss@synopsys.com>
7113
7114         * config/arc/arc.c (arc_finalize_pic): Remove function.
7115         (arc_must_save_register): We use single base PIC register, remove
7116         checks to save/restore the PIC register.
7117         (arc_expand_prologue): Likewise.
7118         * config/arc/arc-protos.h (arc_set_default_type_attributes):
7119         Remove.
7120         (arc_verify_short): Likewise.
7121         (arc_attr_type): Likewise.
7122         * config/arc/arc.c (arc_set_default_type_attributes): Remove.
7123         (walk_stores): Likewise.
7124         (arc_address_cost): Make it static.
7125         (arc_verify_short): Likewise.
7126         (branch_dest): Likewise.
7127         (arc_attr_type): Likewise.
7128         * config/arc/arc.c (TARGET_ADJUST_INSN_LENGTH): Remove.
7129         (TARGET_INSN_LENGTH_PARAMETERS): Likewise.
7130         (arc_final_prescan_insn): Remove inserting the nops due to
7131         hardware hazards.  It is done in reorg step.
7132         (insn_length_variant_t): Remove.
7133         (insn_length_parameters_t): Likewise.
7134         (arc_insn_length_parameters): Likewise.
7135         (arc_get_insn_variants): Likewise.
7136         * config/arc/arc.h (TARGET_UPSIZE_DBR): Remove.
7137
7138 2018-03-06  Jakub Jelinek  <jakub@redhat.com>
7139
7140         PR inline-asm/84683
7141         * reg-stack.c (move_for_stack_reg): If any_malformed_asm, avoid
7142         assertion failure.
7143
7144         PR tree-optimization/84687
7145         * omp-simd-clone.c (simd_clone_create): Clear DECL_BUILT_IN_CLASS
7146         on new_node->decl.
7147         * match.pd (pow(C,x)*expN(y) -> expN(logN(C)*x+y)): New optimization.
7148
7149 2018-03-05  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
7150
7151         * config/rs6000/rs6000-builtin.def (rs6000_speculation_barrier):
7152         Rename to ppc_speculation_barrier.
7153         * config/rs6000/rs6000.c (rs6000_init_builtins): Rename builtin to
7154         __builtin_ppc_speculation_barrier.
7155
7156 2018-03-05  Jakub Jelinek  <jakub@redhat.com>
7157
7158         PR target/84700
7159         * combine.c (combine_simplify_rtx): Don't try to simplify if
7160         if_then_else_cond returned non-NULL, but either true_rtx or false_rtx
7161         are equal to x.
7162
7163 2018-03-05  Segher Boessenkool  <segher@kernel.crashing.org>
7164
7165         * config/rs6000/rs6000.c (rs6000_loop_align): Don't align tiny loops
7166         to 32 bytes when compiling for POWER9.
7167
7168 2018-03-05  Jakub Jelinek  <jakub@redhat.com>
7169
7170         PR target/84564
7171         * config/i386/i386.c (ix86_function_ok_for_sibcall): Check for
7172         regparm >= 3 with no arg reg available also for calls with
7173         flag_force_indirect_call.  Pass decl to ix86_function_regparm.
7174
7175         PR target/84524
7176         * config/i386/sse.md (*<code><mode>3): Replace <mask_prefix3> with
7177         orig,vex.
7178         (*<plusminus_insn><mode>3): Likewise.  Remove <mask_operand3> uses.
7179
7180 2018-03-05  Peter Bergner  <bergner@vnet.ibm.com>
7181
7182         PR target/84264
7183         * config/rs6000/vector.md (mov<mode>): Disallow altivec memory operands.
7184
7185 2018-03-05  Richard Biener  <rguenther@suse.de>
7186
7187         PR tree-optimization/84486
7188         * tree-ssa-pre.c (create_expression_by_pieces): Remove dead code.
7189         When inserting a __builtin_assume_aligned call set the LHS
7190         SSA name alignment info accordingly.
7191
7192 2018-03-05  Wilco Dijkstra  <wdijkstr@arm.com>
7193
7194         PR tree-optimization/84114
7195         * config/aarch64/aarch64.c (aarch64_reassociation_width)
7196         Avoid reassociation of FLOAT_MODE addition.
7197
7198 2018-03-05  Olga Makhotina  <olga.makhotina@intel.com>
7199
7200         * common/config/i386/i386-common.c (OPTION_MASK_ISA_PCONFIG_SET,
7201         OPTION_MASK_ISA_PCONFIG_UNSET, OPTION_MASK_ISA_WBNOINVD_SET,
7202         OPTION_MASK_ISA_WBNOINVD_UNSET): New definitions.
7203         (ix86_handle_option): Handle -mpconfig and -mwbnoinvd.
7204         * config.gcc (pconfigintrin.h, wbnoinvdintrin.h) : Add headers.
7205         * config/i386/cpuid.h (bit_PCONFIG, bit_WBNOINVD): New.
7206         * config/i386/driver-i386.c (host_detect_local_cpu): Detect -mpconfig
7207         and -mwbnoinvd.
7208         * config/i386/i386-builtin.def (__builtin_ia32_wbnoinvd,
7209         __builtin_ia32_wbinvd): New builtins.
7210         (SPECIAL_ARGS2): New.
7211         * config/i386/i386-c.c (__WBNOINVD__, __PCONFIG__): New.
7212         (SPECIAL_ARGS2): New.
7213         * config/i386/i386.c (ix86_target_string): Add -mpconfig and -mwbnoinvd.
7214         (ix86_valid_target_attribute_inner_p): Ditto.
7215         (ix86_init_mmx_sse_builtins): Add special_args2.
7216         * config/i386/i386.h (TARGET_PCONFIG, TARGET_PCONFIG_P, TARGET_WBNOINVD,
7217         TARGET_WBNOINVD_P): New.
7218         * config/i386/i386.md (UNSPECV_WBINVD, UNSPECV_WBNOINVD): New.
7219         (define_insn "wbinvd", define_insn "wbnoinvd"): New.
7220         * config/i386/i386.opt: Add -mpconfig and -mwbnoinvd.
7221         * config/i386/immintrin.h (_wbinvd): New intrinsic.
7222         * config/i386/pconfigintrin.h: New file.
7223         * config/i386/wbnoinvdintrin.h: Ditto.
7224         * config/i386/x86intrin.h: Add headers pconfigintrin.h and
7225         wbnoinvdintrin.h.
7226         * doc/invoke.texi (-mpconfig, -mwbnoinvd): New.
7227
7228 2018-03-05  Richard Biener  <rguenther@suse.de>
7229
7230         PR tree-optimization/84670
7231         * tree-ssa-pre.c (struct bb_bitmap_sets): Add visited_with_visited_succs
7232         member.
7233         (BB_VISITED_WITH_VISITED_SUCCS): New define.
7234         (compute_antic): Initialize BB_VISITED_WITH_VISITED_SUCCS.
7235         (compute_antic_aux): Only assert the number of values in ANTIC_IN
7236         doesn't grow if all successors (recursively) were visited at least
7237         once.
7238
7239 2018-03-05  Richard Biener  <rguenther@suse.de>
7240
7241         PR tree-optimization/84650
7242         * tree-ssa-loop-im.c (pass_lim::execute): Reset the SCEV cache
7243         if executed in the loop pipeline.
7244
7245 2018-03-05  Sandra Loosemore  <sandra@codesourcery.com>
7246
7247         * doc/configfiles.texi (Configuration Files): Move info about
7248         conditionalizing $target-protos.h to...
7249         * doc/sourcebuild.texi (Back End): Here.  Explain how $target.h
7250         differs from $target-protos.h.
7251
7252 2018-03-05  Kito Cheng  <kito.cheng@gmail.com>
7253             Chung-Ju Wu  <jasonwucj@gmail.com>
7254
7255         * config/nds32/nds32-protos.h (nds32_expand_setmem): Declare.
7256         * config/nds32/nds32-multiple.md (setmemsi): Define.
7257         * config/nds32/nds32-memory-manipulation.c
7258         (nds32_gen_dup_4_byte_to_word_value): New.
7259         (emit_setmem_word_loop): New.
7260         (emit_setmem_byte_loop): New.
7261         (nds32_expand_setmem_loop): New.
7262         (nds32_expand_setmem_loop_v3m): New.
7263         (nds32_expand_setmem_unroll): New.
7264         (nds32_expand_setmem): New.
7265
7266 2018-03-04  Kito Cheng  <kito.cheng@gmail.com>
7267             Chung-Ju Wu  <jasonwucj@gmail.com>
7268
7269         * config/nds32/nds32-memory-manipulation.c
7270         (nds32_emit_load_store): New.
7271         (nds32_emit_post_inc_load_store): New.
7272         (nds32_emit_mem_move): New.
7273         (nds32_emit_mem_move_block): New.
7274         (nds32_expand_movmemsi_loop_unknown_size): New.
7275         (nds32_expand_movmemsi_loop_known_size): New.
7276         (nds32_expand_movmemsi_loop): New.
7277         (nds32_expand_movmemsi_unroll): New.
7278         (nds32_expand_movmemqi): Rename ...
7279         (nds32_expand_movmemsi): ... to this.
7280         * config/nds32/nds32-multiple.md (movmemqi): Rename ...
7281         (movmemsi): ... to this.
7282         * config/nds32/nds32-protos.h (nds32_expand_movmemqi): Rename ...
7283         (nds32_expand_movmemsi): ... to this.
7284
7285 2018-03-04  Kito Cheng  <kito.cheng@gmail.com>
7286             Monk Chiang  <sh.chiang04@gmail.com>
7287             Chung-Ju Wu  <jasonwucj@gmail.com>
7288
7289         * config/nds32/nds32-protos.h
7290         (nds32_expand_load_multiple): New arguments.
7291         (nds32_expand_store_multiple): Ditto.
7292         (nds32_valid_multiple_load_store): Rename ...
7293         (nds32_valid_multiple_load_store_p): ... to this.
7294         * config/nds32/nds32-memory-manipulation.c
7295         (nds32_expand_load_multiple): Refine implementation.
7296         (nds32_expand_store_multiple): Ditto.
7297         * config/nds32/nds32-multiple.md
7298         (load_multiple): Update nds32_expand_load_multiple interface.
7299         (store_multiple): Update nds32_expand_store_multiple interface.
7300         * config/nds32/nds32-predicates.c
7301         (nds32_valid_multiple_load_store): Rename ...
7302         (nds32_valid_multiple_load_store_p): ... to this and refine
7303         implementation.
7304         * config/nds32/predicates.md
7305         (nds32_load_multiple_and_update_address_operation): New predicate.
7306         (nds32_store_multiple_and_update_address_operation): New predicate.
7307
7308 2018-03-04  Kito Cheng  <kito.cheng@gmail.com>
7309             Chung-Ju Wu  <jasonwucj@gmail.com>
7310
7311         * config/nds32/nds32.md (type): Add load_multiple and store_multiple.
7312         (combo): New attribute.
7313         * config/nds32/nds32-multiple.md: Refine patterns with new attributes.
7314
7315 2018-03-03  Chung-Ju Wu  <jasonwucj@gmail.com>
7316
7317         * config/nds32/nds32.opt: Change -mcmodel= default value.
7318
7319 2018-03-03  Kito Cheng  <kito.cheng@gmail.com>
7320             Monk Chiang  <sh.chiang04@gmail.com>
7321             Chung-Ju Wu  <jasonwucj@gmail.com>
7322
7323         * config/nds32/constants.md (unspec_element): New enum.
7324         * config/nds32/constraints.md (Umw): New constraint.
7325         * config/nds32/nds32-intrinsic.c: Add more builtin functions.
7326         * config/nds32/nds32-intrinsic.md: Likewise.
7327         * config/nds32/nds32-md-auxiliary.c (nds32_regno_to_enable4): New.
7328         (nds32_valid_smw_lwm_base_p): New.
7329         (nds32_output_smw_single_word): New.
7330         (nds32_output_lmw_single_word): New.
7331         (nds32_expand_unaligned_load): New.
7332         (nds32_expand_unaligned_store): New.
7333         * config/nds32/nds32-protos.h (nds32_valid_smw_lwm_base_p): Declare.
7334         (nds32_output_smw_single_word): Declare.
7335         (nds32_output_lmw_single_word): Declare.
7336         (nds32_expand_unaligned_load): Declare.
7337         (nds32_expand_unaligned_store): Declare.
7338         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_UALOAD_HW,
7339         NDS32_BUILTIN_UALOAD_W, NDS32_BUILTIN_UALOAD_DW,
7340         NDS32_BUILTIN_UASTORE_HW, NDS32_BUILTIN_UASTORE_W,
7341         NDS32_BUILTIN_UASTORE_DW.
7342         * config/nds32/predicates.md (nds32_lmw_smw_base_operand): New
7343         predicate.
7344
7345 2018-03-03  Monk Chiang  <sh.chiang04@gmail.com>
7346             Kito Cheng  <kito.cheng@gmail.com>
7347             Chung-Ju Wu  <jasonwucj@gmail.com>
7348
7349         * config/nds32/nds32-intrinsic.c
7350         (nds32_expand_builtin_null_ftype_reg): Delete.
7351         (nds32_expand_builtin_reg_ftype_imm): Ditto.
7352         (nds32_expand_builtin_null_ftype_reg_imm): Ditto.
7353         (nds32_read_argument): New.
7354         (nds32_legitimize_target): Ditto.
7355         (nds32_legitimize_argument): Ditto.
7356         (nds32_check_constant_argument): Ditto.
7357         (nds32_expand_unop_builtin): Ditto.
7358         (nds32_expand_unopimm_builtin): Ditto.
7359         (nds32_expand_binop_builtin): Ditto.
7360         (nds32_builtin_decl_impl): Ditto.
7361         (builtin_description): Ditto.
7362         (nds32_expand_builtin_impl): Rewrite with new infrastructure.
7363         (nds32_init_builtins_impl): Ditto.
7364         * config/nds32/nds32.c (TARGET_BUILTIN_DECL): Define.
7365         (nds32_builtin_decl): New.
7366         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_COUNT.
7367         * config/nds32/nds32-protos.h (nds32_builtin_decl_impl): Declare.
7368
7369 2018-03-02  Jeff Law  <law@redhat.com>
7370
7371         * reorg.c (stop_search_p): Handle DEBUG_INSN.
7372         (redundant_insn, fill_simple_delay_slots): Likewise.
7373         (fill_slots_from_thread): Likewise.
7374         * resource.c (mark_referenced_resources): Likewise.
7375         (mark_set_resources, find_dead_or_set_registers): Likewise.
7376
7377 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
7378
7379         * substring-locations.h (format_warning_va): Formatting fix for
7380         ATTRIBUTE_GCC_DIAG.
7381         (format_warning_at_substring): Fix up ATTRIBUTE_GCC_DIAG second
7382         argument.
7383         (format_warning_n_va, format_warning_at_substring_n): New prototypes.
7384         * substring-locations.c: Include intl.h.
7385         (format_warning_va): Turned into small wrapper around
7386         format_warning_n_va, renamed to ...
7387         (format_warning_n_va): ... this, add N and PLURAL_GMSGID arguments,
7388         rename GMSGID to SINGULAR_GMSGID, if SINGULAR_GMSGID != PLURAL_GMSGID,
7389         use ngettext.
7390         (format_warning_at_substring_n): New function.
7391         * gimple-ssa-sprintf.c: Remove GCC diagnostic ignored pragma.
7392         (fmtwarn): Add ATTRIBUTE_GCC_DIAG.  Turn into a copy of
7393         format_warning_at_substring with just a shorter name instead of
7394         const function pointer.
7395         (fmtwarn_n): New function.
7396         (maybe_warn, format_directive, parse_directive): Use fmtwarn_n where
7397         appropriate, get rid of all the fmtstr temporaries, move conditionals
7398         with G_() wrapped string literals directly into fmtwarn arguments,
7399         cast dir.len to (int), formatting fixes.
7400
7401 2018-03-02  Thomas Schwinge  <thomas@codesourcery.com>
7402
7403         * doc/invoke.texi: Remove "Cilk Plus" references.
7404
7405 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
7406             Richard Biener  <rguenther@suse.de>
7407
7408         PR ipa/84628
7409         * expr.c (expand_expr_real_1) <case CALL_EXPR>: Don't emit diagnostics
7410         for error or warning attributes if CALL_FROM_THUNK_P is set.
7411         Formatting fixes.
7412
7413 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
7414
7415         PR target/56540
7416         * config/pa/pa.h (TARGET_CPU_CPP_BUILTINS): Predefine
7417         __SIZEOF_128__ macro if HPUX_LONG_DOUBLE_LIBRARY.
7418
7419         PR target/56540
7420         * config/ia64/ia64.h (TARGET_CPU_CPP_BUILTINS): Predefine
7421         __SIZEOF_{FPREG,FLOAT{80,128}}__ macros.
7422
7423         * predict.c (test_prediction_value_range): Use PROB_UNINITIALIZED
7424         instead of -1U in last predictors element's probability member.
7425
7426 2018-03-02  Eric Botcazou  <ebotcazou@adacore.com>
7427
7428         PR ipa/83983
7429         * ipa-devirt.c (odr_subtypes_equivalent_p): Get the ODR type of both
7430         arguments if they are comparable.
7431
7432 2018-03-02  Richard Sandiford  <richard.sandiford@linaro.org>
7433
7434         PR tree-optimization/84634
7435         * tree-vect-stmts.c (vectorizable_store, vectorizable_load): Replace
7436         masks and masked_loop_p with a single loop_masks, making sure it's
7437         null for bb vectorization.
7438
7439 2018-03-02  Richard Sandiford  <richard.sandiford@linaro.org>
7440
7441         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence)
7442         (vect_analyze_data_ref_access): Use loop->safe_len rather than
7443         loop->force_vectorize to check whether there is no alias.
7444
7445 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
7446
7447         PR target/84614
7448         * rtl.h (prev_real_nondebug_insn, next_real_nondebug_insn): New
7449         prototypes.
7450         * emit-rtl.c (next_real_insn, prev_real_insn): Fix up function
7451         comments.
7452         (next_real_nondebug_insn, prev_real_nondebug_insn): New functions.
7453         * cfgcleanup.c (try_head_merge_bb): Use prev_real_nondebug_insn
7454         instead of a loop around prev_real_insn.
7455         * combine.c (move_deaths): Use prev_real_nondebug_insn instead of
7456         prev_real_insn.
7457
7458         PR inline-asm/84625
7459         * config/i386/i386.c (ix86_print_operand): Use conditional
7460         output_operand_lossage instead of gcc_assert if CONST_VECTOR is not
7461         zero vector.
7462
7463 2018-03-02  Richard Biener  <rguenther@suse.de>
7464
7465         PR tree-optimization/84427
7466         * tree-ssa-pre.c (bitmap_remove_expr_from_set): Remove.
7467         (bitmap_set_subtract_values): Rewrite to handle multiple
7468         exprs per value.
7469         (clean): Likewise.
7470         (prune_clobbered_mems): Likewise.
7471         (phi_translate): Take edge instead of pred/phiblock.
7472         (phi_translate_1): Likewise.
7473         (phi_translate_set): Likewise.  Insert all translated
7474         exprs for a value into the set, keeping possibly multiple
7475         expressions per value.
7476         (compute_antic_aux): Adjust for phi_translate changes.
7477         When intersecting union the expressions and prune those
7478         not in the final value set, keeping possibly multiple
7479         expressions per value.  Do not use value-insertion
7480         for unioning ANTIC_OUT U EXP_GEN - TMP_GEN but merge
7481         all expressions.  Add verification that the value-sets
7482         only shrink during iteration.
7483         (compute_partial_antic_aux): Adjust for the phi_translate changes.
7484         (do_pre_regular_insertion): Likewise.
7485         (do_pre_partial_partial_insertion): Likewise.
7486
7487 2018-03-02  Richard Biener  <rguenther@suse.de>
7488
7489         PR target/82005
7490         * config/darwin.c (saved_debug_info_level): New static global.
7491         (darwin_asm_lto_start): Disable debug info generation for LTO out.
7492         (darwin_asm_lto_end): Restore debug info generation settings.
7493
7494 2018-03-01  Martin Liska  <mliska@suse.cz>
7495
7496         PR sanitizer/82484
7497         * sanopt.c (sanitize_rewrite_addressable_params): Do not handle
7498         volatile arguments.
7499
7500 2018-03-01  Richard Biener  <rguenther@suse.de>
7501
7502         PR debug/84645
7503         * dwarf2out.c (gen_variable_die): Properly handle late VLA
7504         type annotation with LTO when debug was disabled at compile-time.
7505
7506 2018-03-01  Matthew Fortune  <mfortune@gmail.com>
7507
7508         * config/mips/mips.c (mips_final_prescan_insn): Fix incorrect
7509         XINT with INTVAL.
7510         (mips_final_postscan_insn): Likewise.
7511
7512 2018-03-01  Richard Sandiford  <richard.sandiford@linaro.org>
7513
7514         PR rtl-optimization/84528
7515         * alias.c (init_alias_target): Add commentary.
7516         (init_alias_analysis): Only give HARD_FRAME_POINTER_REGNUM
7517         a unique base value if the frame pointer is not eliminated
7518         to the stack pointer.
7519
7520 2018-03-01  Tom de Vries  <tom@codesourcery.com>
7521
7522         PR rtl-optimization/83327
7523         * lra-int.h (hard_regs_spilled_into): Declare.
7524         * lra.c (hard_regs_spilled_into): Define.
7525         (init_reg_info): Init hard_regs_spilled_into.
7526         * lra-spills.c (assign_spill_hard_regs): Update hard_regs_spilled_into.
7527         * lra-lives.c (make_hard_regno_born, make_hard_regno_dead)
7528         (process_bb_lives): Handle hard_regs_spilled_into.
7529         (lra_create_live_ranges_1): Before doing liveness propagation, clear
7530         regs in all_hard_regs_bitmap if set in hard_regs_spilled_into.
7531
7532 2018-02-28  David Edelsohn  <dje.gcc@gmail.com>
7533
7534         * config.gcc (powerpc-ibm-aix7.1.*): New stanza.
7535         (powerpc-ibm-aix[789]*): Default to AIX 7.2.
7536         * config/rs6000/aix71.h (TARGET_DEFAULT): Revert to Power4 ISA.
7537         * config/rs6000/aix72.h: New file.
7538
7539 2018-02-28  Jakub Jelinek  <jakub@redhat.com>
7540
7541         * gimple-ssa-warn-restrict.c (maybe_diag_overlap): Use warning_n
7542         instead of warning_at with conditional singular and plural messages
7543         where possible.
7544
7545         PR target/52991
7546         * stor-layout.c (update_alignment_for_field): For
7547         targetm.ms_bitfield_layout_p (rli->t), if !is_bitfield
7548         && !DECL_PACKED (field), do the alignment update, just use
7549         only desired_align instead of MAX (type_align, desired_align)
7550         as the alignment.
7551         (place_field): Don't do known_align < desired_align handling
7552         early if targetm.ms_bitfield_layout_p (rli->t) and rli->prev_field
7553         is non-NULL, instead do it after rli->prev_field handling and
7554         only if not within a bitfield word.  For DECL_PACKED (field)
7555         use type_align of BITS_PER_UNIT.
7556
7557 2018-02-28  Eric Botcazou  <ebotcazou@adacore.com>
7558
7559         * config/aarch64/aarch64.c (aarch64_emit_probe_stack_range): Remove
7560         superfluous parentheses and trailing spaces.
7561
7562 2018-02-28  Richard Biener  <rguenther@suse.de>
7563
7564         PR tree-optimization/84584
7565         * graphite-scop-detection.c (scop_detection::add_scop): Discard
7566         SCoPs with fake exit edge.
7567
7568 2018-02-28  Martin Liska  <mliska@suse.cz>
7569
7570         PR testsuite/84597
7571         * timevar.c (timer::print): Fix format to properly print 100%
7572         values.
7573
7574 2018-02-28  Richard Biener  <rguenther@suse.de>
7575
7576         PR middle-end/84607
7577         * genmatch.c (capture_info::walk_match): Do not mark
7578         captured expressions without operands as expr_p given
7579         they act more like predicates and should be subject to
7580         "lost tail" side-effect preserving.
7581
7582 2018-02-28  Alexandre Oliva  <aoliva@redhat.com>
7583
7584         PR rtl-optimization/81611
7585         * auto-inc-dec.c (attempt_change): Move dead note from
7586         mem_insn if it's the next use of regno
7587         (find_address): Take address use of reg holding
7588         non-incremented value.  Add parm to limit search to the named
7589         reg only.
7590         (merge_in_block): Attempt to use a mem insn that is the next
7591         use of the original regno.
7592
7593 2018-02-27  Martin Sebor  <msebor@redhat.com>
7594
7595         PR c++/83871
7596         * gcc/doc/invoke.texi (-Wmissing-attributes): New option.
7597         * gcc/print-tree.c (print_node): Handle DECL_UNINLINABLE.
7598
7599 2018-02-27  Martin Sebor  <msebor@redhat.com>
7600
7601         PR translation/84207
7602         * diagnostic-core.h (warning_n, error_n, inform_n): Change
7603         n argument to unsigned HOST_WIDE_INT.
7604         * diagnostic.c (warning_n, error_n, inform_n): Ditto.
7605         (diagnostic_n_impl): Ditto.  Handle arguments in excess of LONG_MAX.
7606         * gimple-ssa-sprintf.c (format_directive): Simplify inform_n call.
7607         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Use warning_n.
7608
7609 2018-02-27  Richard Biener  <rguenther@suse.de>
7610
7611         PR tree-optimization/84512
7612         * tree-vect-loop.c (vect_compute_single_scalar_iteration_cost):
7613         Do not use the estimate returned from record_stmt_cost for
7614         the scalar iteration cost but sum properly using add_stmt_cost.
7615
7616 2018-02-27  Richard Biener  <rguenther@suse.de>
7617
7618         PR tree-optimization/84466
7619         * graphite-scop-detection.c (scop_detection::stmt_simple_for_scop_p):
7620         Adjust last change to less strictly validate use operands.
7621
7622 2018-02-27  Martin Liska  <mliska@suse.cz>
7623
7624         PR gcov-profile/84548
7625         * gcov.c (process_file): Allow partial overlap and consider it
7626         also as group functions.
7627         (output_lines): Properly calculate range of lines for a group.
7628
7629 2018-02-27  Martin Liska  <mliska@suse.cz>
7630
7631         * timevar.c (timer::print_row): Remove 'usr', 'sys', 'wall' and
7632         'ggc' suffixes.  Change first column width.
7633         (timer::print): Fix formatting of the column.
7634
7635 2018-02-27  Alexandre Oliva  <aoliva@redhat.com>
7636
7637         * tree-ssa-live.c (remove_unused_scope_block_p): Do not
7638         preserve inline entry blocks for the sake of debug inline
7639         entry point markers alone.
7640         (remove_unused_locals): Suggest in comments a better place to
7641         force the preservation of inline entry blocks that are
7642         otherwise unused, but do not preserve them.
7643
7644 2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
7645
7646         * config/i386/i386.c (ix86_output_indirect_jmp): Update comments.
7647
7648 2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
7649
7650         PR target/84039
7651         * config/i386/constraints.md (Bs): Replace
7652         ix86_indirect_branch_register with
7653         TARGET_INDIRECT_BRANCH_REGISTER.
7654         (Bw): Likewise.
7655         * config/i386/i386.md (indirect_jump): Likewise.
7656         (tablejump): Likewise.
7657         (*sibcall_memory): Likewise.
7658         (*sibcall_value_memory): Likewise.
7659         Peepholes of indirect call and jump via memory: Likewise.
7660         (*sibcall_GOT_32): Disallowed for TARGET_INDIRECT_BRANCH_REGISTER.
7661         (*sibcall_value_GOT_32): Likewise.
7662         * config/i386/predicates.md (indirect_branch_operand): Likewise.
7663         (GOT_memory_operand): Likewise.
7664         (call_insn_operand): Likewise.
7665         (sibcall_insn_operand): Likewise.
7666         (GOT32_symbol_operand): Likewise.
7667         * config/i386/i386.h (TARGET_INDIRECT_BRANCH_REGISTER): New.
7668
7669 2018-02-26  Eric Botcazou  <ebotcazou@adacore.com>
7670
7671         PR rtl-optimization/83496
7672         * reorg.c (steal_delay_list_from_target): Change REDUNDANT array from
7673         booleans to RTXes.  Call fix_reg_dead_note on every non-null element.
7674         (steal_delay_list_from_fallthrough): Call fix_reg_dead_note on a
7675         redundant insn, if any.
7676         (relax_delay_slots): Likewise.
7677         (update_reg_unused_notes): Rename REDUNDANT_INSN to OTHER_INSN.
7678
7679 2018-02-26  Richard Sandiford  <richard.sandiford@linaro.org>
7680
7681         PR tree-optimization/83965
7682         * tree-vect-patterns.c (vect_reassociating_reduction_p): Assume
7683         that grouped statements are part of a reduction chain.  Return
7684         true if the statement is not marked as a reduction itself but
7685         is part of a group.
7686         (vect_recog_dot_prod_pattern): Don't check whether the statement
7687         is part of a group here.
7688         (vect_recog_sad_pattern): Likewise.
7689         (vect_recog_widen_sum_pattern): Likewise.
7690
7691 2018-02-26  Eric Botcazou  <ebotcazou@adacore.com>
7692
7693         PR debug/84545
7694         * final.c (rest_of_clean_state): Also look for calls inside sequences.
7695
7696 2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
7697
7698         PR target/84530
7699         * config/i386/i386-protos.h (ix86_output_indirect_jmp): Remove
7700         the bool argument.
7701         (ix86_output_indirect_function_return): New prototype.
7702         (ix86_split_simple_return_pop_internal): Likewise.
7703         * config/i386/i386.c (indirect_return_via_cx): New.
7704         (indirect_return_via_cx_bnd): Likewise.
7705         (indirect_thunk_name): Handle return va CX_REG.
7706         (output_indirect_thunk_function): Create alias for
7707         __x86_return_thunk_[re]cx and __x86_return_thunk_[re]cx_bnd.
7708         (ix86_output_indirect_jmp): Remove the bool argument.
7709         (ix86_output_indirect_function_return): New function.
7710         (ix86_split_simple_return_pop_internal): Likewise.
7711         * config/i386/i386.md (*indirect_jump): Don't pass false
7712         to ix86_output_indirect_jmp.
7713         (*tablejump_1): Likewise.
7714         (simple_return_pop_internal): Change it to define_insn_and_split.
7715         Call ix86_split_simple_return_pop_internal to split it for
7716         -mfunction-return=.
7717         (simple_return_indirect_internal): Call
7718         ix86_output_indirect_function_return instead of
7719         ix86_output_indirect_jmp.
7720
7721 2018-02-26  Jakub Jelinek  <jakub@redhat.com>
7722
7723         PR bootstrap/84405
7724         * vec.h (vec_default_construct): For BROKEN_VALUE_INITIALIZATION use
7725         memset and value initialization afterwards.
7726
7727 2018-02-26  Christophe Lyon  <christophe.lyon@linaro.org>
7728
7729         * Makefile.in (lto-wrapper): Use ALL_LINKERFLAGS.
7730
7731 2018-02-26  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
7732
7733         PR target/84521
7734         * common/config/aarch64/aarch64-common.c
7735         (aarch_option_optimization_table[]): Switch
7736         off fomit-frame-pointer
7737
7738 2018-02-26  Kito Cheng  <kito.cheng@gmail.com>
7739             Chung-Ju Wu  <jasonwucj@gmail.com>
7740
7741         * config/nds32/nds32-multiple.md (load_multiple): Disallow
7742         volatile memory.
7743         (store_multiple): Ditto.
7744
7745 2018-02-26  Kito Cheng  <kito.cheng@gmail.com>
7746
7747         * config.gcc: Add --with-cpu support for nds32 target.
7748         * config/nds32/nds32-opts.h (nds32_cpu_type): New.
7749         * config/nds32/nds32.opt: Add -mcpu= option.
7750
7751 2018-02-25  Segher Boessenkool  <segher@kernel.crashing.org>
7752
7753         * config/rs6000/rs6000.opt (mvrsave=no, mvrsave=yes, isel=no,
7754         isel=yes): Warn for these deprecated options.
7755
7756 2018-02-23  David Edelsohn  <dje.gcc@gmail.com>
7757
7758         * config/rs6000/aix71.h (TARGET_DEFAULT): Change to
7759         ISA_2_5_MASKS_EMBEDDED.
7760
7761 2018-02-23  Jakub Jelinek  <jakub@redhat.com>
7762
7763         * ipa-prop.c (ipa_vr_ggc_hash_traits::hash): Hash p->min and
7764         p->max as pointers rather than using iterative_hash_expr.
7765
7766 2018-02-23  Carl Love  <cel@us.ibm.com>
7767
7768         * config/rs6000/rs6000-builtin.def: Change VSIGNED2 and VUNSIGNED2
7769         macro expansions from BU_VSX_2 to BU_P8V_VSX_2 and BU_VSX_OVERLOAD_2 to
7770         BU_P8V_OVERLOAD_2.
7771         * config/rs6000/rs6000-c.c: Change VSX_BUILTIN_VEC_VSIGNED2 to
7772         P8V_BUILTIN_VEC_VSIGNED2.  Change VSX_BUILTIN_VEC_VUNSIGNED2 to
7773         P8V_BUILTIN_VEC_VUNSIGNED2.
7774
7775 2018-02-22  Vladimir Makarov  <vmakarov@redhat.com>
7776
7777         PR target/81572
7778         * lra-int.h (LRA_UNKNOWN_ALT, LRA_NON_CLOBBERED_ALT): New macros.
7779         * lra.c (lra_set_insn_recog_data, lra_update_insn_recog_data): Use
7780         LRA_UNKNOWN_ALT.
7781         * lra-constraints.c (curr_insn_transform): Set up
7782         LRA_NON_CLOBBERED_ALT for moves processed on the fast path.  Use
7783         LRA_UNKNOWN_ALT.
7784         (remove_inheritance_pseudos): Use LRA_UNKNOWN_ALT.
7785         * lra-eliminations.c (spill_pseudos): Ditto.
7786         (process_insn_for_elimination): Ditto.
7787         * lra-lives.c (reg_early_clobber_p): Use the new macros.
7788         * lra-spills.c (spill_pseudos): Use LRA_UNKNOWN_ALT and
7789         LRA_NON_CLOBBERED_ALT.
7790
7791 2018-02-22  Martin Sebor  <msebor@redhat.com>
7792
7793         PR tree-optimization/84480
7794         * gimple-fold.c (gimple_fold_builtin_strcpy): Move warnings
7795         to maybe_diag_stxncpy_trunc.  Call it.
7796         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Integrate warnings
7797         from gimple_fold_builtin_strcpy.  Print inlining stack.
7798         (handle_builtin_stxncpy): Print inlining stack.
7799         * tree-ssa-strlen.h (maybe_diag_stxncpy_trunc): Declare.
7800
7801 2018-02-22  H.J. Lu  <hongjiu.lu@intel.com>
7802
7803         PR target/84176
7804         * config/i386/i386.c (ix86_set_indirect_branch_type): Issue an
7805         error when -mindirect-branch=thunk-extern, -fcf-protection=branch
7806         and -fcheck-pointer-bounds are used together.
7807         (indirect_thunk_prefix): New enum.
7808         (indirect_thunk_need_prefix): New function.
7809         (indirect_thunk_name): Replace need_bnd_p with need_prefix.  Use
7810         "_nt" instead of "_bnd" for NOTRACK prefix.
7811         (output_indirect_thunk): Replace need_bnd_p with need_prefix.
7812         (output_indirect_thunk_function): Likewise.
7813         (): Likewise.
7814         (ix86_code_end): Update output_indirect_thunk_function calls.
7815         (ix86_output_indirect_branch_via_reg): Replace
7816         ix86_bnd_prefixed_insn_p with indirect_thunk_need_prefix.
7817         (ix86_output_indirect_branch_via_push): Likewise.
7818         (ix86_output_function_return): Likewise.
7819         * doc/invoke.texi: Document -mindirect-branch=thunk-extern is
7820         incompatible with -fcf-protection=branch and
7821         -fcheck-pointer-bounds.
7822
7823 2018-02-22  Steve Ellcey  <sellcey@cavium.com>
7824
7825         PR target/83335
7826         * config/aarch64/aarch64.c (aarch64_print_address_internal):
7827         Change gcc_assert call to output_operand_lossage.
7828
7829 2018-02-22  Steve Ellcey  <sellcey@cavium.com>
7830
7831         * doc/extend.texi (__builtin_extend_pointer): Document builtin.
7832
7833 2018-02-22  DJ Delorie  <dj@redhat.com>
7834             Sebastian Perta  <sebastian.perta@renesas.com>
7835             Oleg Endo  <olegendo@gcc.gnu.org>
7836
7837         * config/rx/rx.c (rx_rtx_costs): New function.
7838         (TARGET_RTX_COSTS): Override to use rx_rtx_costs.
7839
7840 2018-02-22  Thomas Preud'homme  <thomas.preudhomme@arm.com>
7841
7842         * config/arm/t-multilib: Map Armv8-R to Armv7 multilibs.
7843
7844 2018-02-22  Martin Liska  <mliska@suse.cz>
7845
7846         PR driver/83193
7847         * common/config/arm/arm-common.c (arm_print_hint_for_cpu_option):
7848         Add "native" as a possible value.
7849
7850 2018-02-22  Martin Liska  <mliska@suse.cz>
7851
7852         PR driver/83193
7853         * config/i386/i386.c (ix86_option_override_internal):
7854         Add "native" as a possible value for -march and -mtune.
7855
7856 2018-02-22  Jakub Jelinek  <jakub@redhat.com>
7857
7858         PR target/84502
7859         * stor-layout.c (finalize_type_size): Propagate TYPE_EMPTY_P flag
7860         to all type variants.
7861
7862         PR tree-optimization/84503
7863         * gimple-ssa-store-merging.c (merged_store_group::merge_into): Compute
7864         width as info->bitpos + info->bitsize - start.
7865         (merged_store_group::merge_overlapping): Simplify width computation.
7866         (check_no_overlap): New function.
7867         (imm_store_chain_info::try_coalesce_bswap): Compute expected
7868         start + width and last_order of the group, fail if check_no_overlap
7869         fails.
7870         (imm_store_chain_info::coalesce_immediate_stores): Don't merge info
7871         to group if check_no_overlap fails.
7872
7873 2018-02-21  Segher Boessenkool  <segher@kernel.crashing.org>
7874
7875         * config/rs6000/altivec.md: Delete contraint arguments to
7876         define_expand, define_split, and define_peephole2, and in
7877         define_insn_and_split if always unused.
7878         * config/rs6000/darwin.md: Ditto.
7879         * config/rs6000/dfp.md: Ditto.
7880         * config/rs6000/rs6000.md: Ditto.
7881         * config/rs6000/sync.md: Ditto.
7882         * config/rs6000/vector.md: Ditto.
7883         * config/rs6000/vsx.md: Ditto.
7884
7885 2018-02-21  Segher Boessenkool  <segher@kernel.crashing.org>
7886
7887         * config/rs6000/altivec.md: Write output control strings as braced
7888         blocks instead of double-quoted strings.
7889         * config/rs6000/darwin.md: Ditto.
7890         * config/rs6000/rs6000.md: Ditto.
7891         * config/rs6000/vector.md: Ditto.
7892         * config/rs6000/vsx.md: Ditto.
7893
7894 2018-02-21  Jason Merrill  <jason@redhat.com>
7895
7896         PR c++/84314 - ICE with templates and fastcall attribute.
7897         * attribs.c (build_type_attribute_qual_variant): Remove assert.
7898
7899 2018-02-21  Jan Hubicka  <hubicka@ucw.cz>
7900
7901         * ipa-cp.c (determine_versionability): Fix comment typos.
7902
7903 2018-02-21  Jan Hubicka  <hubicka@ucw.cz>
7904
7905         PR c/84229
7906         * ipa-cp.c (determine_versionability): Do not version functions caling
7907         va_arg_pack.
7908
7909 2018-02-21  Martin Liska  <mliska@suse.cz>
7910
7911         PR driver/83193
7912         * config/aarch64/aarch64.c (aarch64_print_hint_for_core_or_arch):
7913         Add "native" as a possible value.
7914         * config/aarch64/aarch64.h (HAVE_LOCAL_CPU_DETECT):  Define
7915         the macro when native cpu detection is available.
7916
7917 2018-02-21  Martin Liska  <mliska@suse.cz>
7918
7919         PR driver/83193
7920         * common/config/arm/arm-common.c (arm_print_hint_for_arch_option):
7921         Add "native" as a possible value.
7922         * config/arm/arm.h (HAVE_LOCAL_CPU_DETECT): Define the macro
7923         when native cpu detection is available.
7924
7925 2018-02-21  Jakub Jelinek  <jakub@redhat.com>
7926             Martin Sebor  <msebor@redhat.com>
7927
7928         PR tree-optimization/84478
7929         * gimple-fold.h (get_range_strlen): Add a bool argument defaulted to
7930         false.
7931         * gimple-fold.c (get_range_strlen): Make minlen const and assume it
7932         can't be NULL.  Change FUZZY from bool to int, for 1 add PHI/COND_EXPR
7933         support which is conservatively correct, for 2 only stay conservative
7934         for maxlen.  Formatting and comment capitalization fixes.  Add STRICT
7935         argument to the 2 argument get_range_strlen, adjust 6 arg
7936         get_range_strlen caller and clear minmaxlen[0] and [1] if it returned
7937         false.
7938         (get_maxval_strlen): Adjust 6 arg get_range_strlen caller.
7939         (gimple_fold_builtin_strlen): Pass true as last argument to
7940         get_range_strlen.
7941
7942 2018-02-20  Martin Sebor  <msebor@redhat.com>
7943
7944         PR middle-end/84095
7945         * gimple-ssa-warn-restrict.c (builtin_memref::extend_offset_range): New.
7946         (builtin_memref::set_base_and_offset): Same.  Handle inner references.
7947         (builtin_memref::builtin_memref): Factor out parts into
7948         set_base_and_offset and call it.
7949
7950 2018-02-20  Richard Sandiford  <richard.sandiford@linaro.org>
7951
7952         PR middle-end/84406
7953         * optabs-query.c (find_widening_optab_handler_and_mode): If from_mode
7954         is a scalar_int_mode, assert that to_mode is a scalar_int_mode with
7955         greater precision.  If to_mode is a MODE_PARTIAL_INT, stop the
7956         search at the associated MODE_INT.
7957
7958 2018-02-20  Jeff Law  <law@redhat.com>
7959
7960         PR middle-end/82123
7961         PR tree-optimization/81592
7962         PR middle-end/79257
7963         * gimple-ssa-sprintf.c (format_integer): Query EVRP range analyzer
7964         for range data rather than using global data.
7965         * gimple-ssa-sprintf.c (get_int_range): Query EVRP range analyzer for
7966         range data rather than using global data.
7967         * gimple-ssa-sprintf.c (get_int_range): Accept vr_values parameter
7968         pass it to children as needed.
7969         (struct directive::fmtresult): Similarly.
7970         (struct directive::set_width): Similarly.
7971         (struct directive::set_precision): Similarly.
7972         (format_integer, format_directive, parse_directive): Similarly.
7973         (format_none): Accept unnamed vr_values parameter.
7974         (format_percent, format_floating, format_character): Similarly.
7975         (format_string, format_plain): Similarly.
7976         * gimple-ssa-sprintf.c (sprintf_dom_walker::handle_gimple_call): Query
7977         the EVRP range analyzer for range data rather than using global data.
7978         * gimple-ssa-sprintf.c: Include alloc-pool.h, vr-values.h and
7979         gimple-ssa-evrp-analyze.h
7980         (class sprintf_dom_walker): Add after_dom_children member function.
7981         Add evrp_range_analyzer member.
7982         (sprintf_dom_walker::before_dom_children): Call into the EVRP
7983         range analyzer as needed.
7984         (sprintf_dom_walker::after_dom_children): New member function.
7985         * gimple-ssa-evrp-analyze.c (evrp_range_analyzer::enter): Do nothing
7986         if not optimizing.
7987         (evrp_range_analyzer::record_ranges_from_stmt): Likewise.
7988         (evrp_range_analyzer::pop_to_marker): Likewise.
7989
7990 2018-02-20  Richard Sandiford  <richard.sandiford@linaro.org>
7991
7992         PR tree-optimization/84419
7993         * internal-fn.c (expand_call_mem_ref): Create a TARGET_MEM_REF
7994         with the required type if its current type is compatible but
7995         different.
7996
7997 2018-02-20  Jakub Jelinek  <jakub@redhat.com>
7998
7999         PR middle-end/82004
8000         * match.pd (pow(C,x) -> exp(log(C)*x)): Delay all folding until
8001         after vectorization.
8002
8003 2018-02-20  Martin Liska  <mliska@suse.cz>
8004
8005         PR driver/83193
8006         * config/aarch64/aarch64.c (aarch64_print_hint_for_core_or_arch): Print
8007         possible values if we don't have a hint.
8008
8009 2018-02-20  Martin Liska  <mliska@suse.cz>
8010
8011         PR c/84310
8012         PR target/79747
8013         * final.c (shorten_branches): Build align_tab array with one
8014         more element.
8015         * opts.c (finish_options): Add alignment option limit check.
8016         (MAX_CODE_ALIGN): Likewise.
8017         (MAX_CODE_ALIGN_VALUE): Likewise.
8018         * doc/invoke.texi: Document maximum allowed option value for
8019         all -falign-* options.
8020
8021 2018-02-19  Jakub Jelinek  <jakub@redhat.com>
8022
8023         PR target/84146
8024         * reg-notes.def (REG_CALL_ARG_LOCATION): New reg note.
8025         * insn-notes.def (NOTE_INSN_CALL_ARG_LOCATION): Remove.
8026         * var-tracking.c (emit_note_insn_var_location): Remove all references
8027         to NOTE_INSN_CALL_ARG_LOCATION.
8028         (emit_notes_in_bb): Emit arguments as REG_CALL_ARG_LOCATION note on
8029         the CALL_INSN rather than separate NOTE_INSN_CALL_ARG_LOCATION note.
8030         Use copy_rtx_if_shared.
8031         * dwarf2out.c (gen_subprogram_die): Use XEXP with 0 instead of
8032         NOTE_VAR_LOCATION on ca_loc->call_arg_loc_note.
8033         (dwarf2out_var_location): Remove handling of
8034         NOTE_INSN_CALL_ARG_LOCATION, instead handle REG_CALL_ARG_LOCATION note
8035         on call_insn.
8036         * final.c (final_scan_insn): Remove all references to
8037         NOTE_INSN_CALL_ARG_LOCATION.
8038         (rest_of_clean_state): Likewise.  Remove REG_CALL_ARG_LOCATION notes
8039         before dumping final insns.
8040         * except.c (emit_note_eh_region_end): Remove all references to
8041         NOTE_INSN_CALL_ARG_LOCATION.
8042         * config/alpha/alpha.c (alpha_pad_function_end): Likewise.
8043         * config/c6x/c6x.c (c6x_gen_bundles): Likewise.
8044         * config/arc/arc.c (hwloop_optimize): Likewise.
8045         * config/arm/arm.c (create_fix_barrier): Likewise.
8046         * config/s390/s390.c (s390_chunkify_start): Likewise.
8047         * config/sh/sh.c (find_barrier): Likewise.
8048         * config/i386/i386.c (rest_of_insert_endbranch,
8049         ix86_seh_fixup_eh_fallthru): Likewise.
8050         * config/xtensa/xtensa.c (hwloop_optimize): Likewise.
8051         * config/iq2000/iq2000.c (final_prescan_insn): Likewise.
8052         * config/frv/frv.c (frv_function_prologue): Likewise.
8053         * emit-rtl.c (try_split): Likewise.  Copy over REG_CALL_ARG_LOCATION
8054         reg note.
8055         (note_outside_basic_block_p): Remove all references to
8056         NOTE_INSN_CALL_ARG_LOCATION.
8057         * gengtype.c (adjust_field_rtx_def): Likewise.
8058         * print-rtl.c (rtx_writer::print_rtx_operand_code_0, print_insn):
8059         Likewise.
8060         * jump.c (cleanup_barriers, delete_related_insns): Likewise.
8061         * cfgrtl.c (force_nonfallthru_and_redirect): Likewise.
8062
8063         PR c++/84444
8064         * builtins.c (builtin_mathfn_code): Don't check if CALL_EXPR_FN (t)
8065         is ADDR_EXPR.
8066
8067         PR tree-optimization/84452
8068         * tree-vect-patterns.c (vect_recog_pow_pattern): Don't call
8069         expand_simd_clones if targetm.simd_clone.compute_vecsize_and_simdlen
8070         is NULL.
8071
8072 2018-02-19  Martin Liska  <mliska@suse.cz>
8073
8074         PR sanitizer/82183
8075         * passes.def: Put pass_sancov_O0 before pass_lower_switch with -O0.
8076
8077 2018-02-19  Martin Liska  <mliska@suse.cz>
8078             Richard Sandiford  <richard.sandiford@linaro.org>
8079
8080         PR tree-optimization/82491
8081         * gimple-fold.c (get_base_constructor): Make earlier bail out
8082         to prevent ubsan.
8083
8084 2018-02-19  Carl Love  <cel@us.ibm.com>
8085
8086         * config/rs6000/rs6000-builtin.def: Change NEG macro expansions from
8087         BU_ALTIVEC_A to BU_P8V_AV_1 and BU_ALTIVEC_OVERLOAD_1 to
8088         BU_P8V_OVERLOAD_1.
8089         * config/rs6000/rs6000-c.c: Change ALTIVEC_BUILTIN_VEC_NEG to
8090         P8V_BUILTIN_VEC_NEG.
8091
8092 2018-02-19  Sebastian Perta  <sebastian.perta@renesas.com>
8093
8094         * config/rl78/rl78.md (movdf): New define expand.
8095
8096 2018-02-19  Martin Liska  <mliska@suse.cz>
8097
8098         PR other/80589
8099         * doc/invoke.texi: Fix typo.
8100         * params.def (PARAM_MAX_LOOP_HEADER_INSNS): Likewise.
8101
8102 2018-02-18  Segher Boessenkool  <segher@kernel.crashing.org>
8103
8104         * config/rs6000/rs6000.c (rs6000_option_override_internal): Don't
8105         handle rs6000_single_float and rs6000_double_float specially for
8106         e500 family CPUs.
8107
8108 2018-02-16  Jeff Law  <law@redhat.com>
8109
8110         * config/rx/rx.c (add_pop_cfi_notes): New function.;
8111         (pop_regs): Use it.
8112
8113 2018-02-16  Jakub Jelinek  <jakub@redhat.com>
8114
8115         PR ipa/84425
8116         * ipa-inline.c (inline_small_functions): Fix a typo.
8117
8118 2018-02-16  Nathan Sidwell  <nathan@acm.org>
8119
8120         * doc/extend.texi (Backwards Compatibility): Americanize 'behaviour'.
8121
8122 2018-02-16  Carl Love  <cel@us.ibm.com>
8123
8124         * config/rs6000/rs6000-builtin.def: Add BU_P8V_VSX_2 macro definition.
8125         Change FLOAT2 expansions from BU_VSX_2 to BU_P8V_VSX_2 and
8126         from BU_VSX_OVERLOAD_2 to BU_P8V_OVERLOAD_2.
8127         * config/rs6000/rs6000-c.c: Changed macro VSX_BUILTIN_VEC_FLOAT2
8128         expansion to P8V_BUILTIN_VEC_FLOAT2.
8129
8130 2018-02-16  Vladimir Makarov  <vmakarov@redhat.com>
8131
8132         PR rtl-optimization/70023
8133         * lra-constraints.c (inherit_in_ebb): Take hard reg mode of
8134         src_regno into account.
8135
8136 2018-02-16  Carl Love  <cel@us.ibm.com>
8137
8138         * config/rs6000/altivec.h: Remove vec_vextract4b and vec_vinsert4b.
8139         * config/rs6000/rs6000-builtin.def: Remove macro expansion for
8140         VEXTRACT4B, VINSERT4B, VINSERT4B_DI and VEXTRACT4B.
8141         * config/rs6000/rs6000.c: Remove case statements for
8142         P9V_BUILTIN_VEXTRACT4B, P9V_BUILTIN_VEC_VEXTRACT4B,
8143         P9V_BUILTIN_VINSERT4B, P9V_BUILTIN_VINSERT4B_DI,
8144         and P9V_BUILTIN_VEC_VINSERT4B.
8145         * config/rs6000/rs6000-c.c (altivec_expand_builtin): Remove entries for
8146         P9V_BUILTIN_VEC_VEXTRACT4B and P9V_BUILTIN_VEC_VINSERT4B.
8147         * config/rs6000/vsx.md:
8148         * doc/extend.texi: Remove vec_vextract4b, non ABI definitions for
8149         vec_insert4b.
8150
8151 2018-02-16  Carl Love  <cel@us.ibm.com>
8152
8153         * config/rs6000/altivec.h: Add builtin names vec_extract4b
8154         vec_insert4b.
8155         * config/rs6000/rs6000-builtin.def: Add INSERT4B and EXTRACT4B
8156         definitions.
8157         * config/rs6000/rs6000-c.c: Add the definitions for
8158         P9V_BUILTIN_VEC_EXTRACT4B and P9V_BUILTIN_VEC_INSERT4B.
8159         * config/rs6000/rs6000.c (altivec_expand_builtin): Add
8160         P9V_BUILTIN_EXTRACT4B and P9V_BUILTIN_INSERT4B case statements.
8161         * config/rs6000/vsx.md: Add define_insn extract4b.  Add define_expand
8162         definition for insert4b and define insn *insert3b_internal.
8163         * doc/extend.texi: Add documentation for vec_extract4b.
8164
8165 2018-02-16  Nathan Sidwell  <nathan@acm.org>
8166
8167         * doc/extend.texi (Backwards Compatibility): Mention friend
8168         injection.  Note for-scope is deprecated.
8169         * doc/invoke.texi (-ffriend-injection): Deprecate.
8170
8171 2018-02-16  Segher Boessenkool  <segher@kernel.crashing.org>
8172
8173         * combine.c (try_combine): When adjusting LOG_LINKS for the destination
8174         that moved to I2, also allow destinations that are a paradoxical
8175         subreg (instead of a normal reg).
8176
8177 2018-02-16  Oleg Endo  <olegendo@gcc.gnu.org>
8178
8179         PR target/83831
8180         * config/rx/rx.c (rx_fuse_in_memory_bitop): Convert shift operand
8181         to QImode.
8182
8183 2018-02-16  Richard Biener  <rguenther@suse.de>
8184
8185         PR tree-optimization/84037
8186         PR tree-optimization/84016
8187         PR target/82862
8188         * config/i386/i386.c (ix86_builtin_vectorization_cost):
8189         Adjust vec_construct for the fact we need additional higher latency
8190         128bit inserts for AVX256 and AVX512 vector builds.
8191         (ix86_add_stmt_cost): Scale vector construction cost for
8192         elementwise loads.
8193
8194 2018-02-16  Richard Biener  <rguenther@suse.de>
8195
8196         PR tree-optimization/84417
8197         * tree-ssa.c (non_rewritable_mem_ref_base): Properly constrain
8198         the MEM_REF offset when conversion to BIT_FIELD_REF is desired.
8199         (non_rewritable_lvalue_p): Likewise, use poly-ints.
8200
8201 2018-02-16  Martin Liska  <mliska@suse.cz>
8202
8203         PR sanitizer/84307
8204         * internal-fn.def (ASAN_CHECK): Set proper flags.
8205         (ASAN_MARK): Likewise.
8206
8207 2018-02-16  Julia Koval  <julia.koval@intel.com>
8208
8209         * config/i386/i386.c (ix86_option_override_internal): Remove PTA_CLWB
8210         from PTA_CANNONLAKE.
8211
8212 2018-02-16  Jakub Jelinek  <jakub@redhat.com>
8213
8214         PR target/84272
8215         * config/aarch64/cortex-a57-fma-steering.c (fma_forest::merge_forest):
8216         Use ++iter rather than iter++ for std::list iterators.
8217         (func_fma_steering::dfs): Likewise.  Don't delete nodes right away,
8218         defer deleting them until all nodes in the forest are processed.  Do
8219         free even leaf nodes.  Change to_process into auto_vec.
8220
8221         PR bootstrap/84405
8222         * system.h (BROKEN_VALUE_INITIALIZATION): Define for GCC < 4.3.
8223         * vec.h (vec_default_construct): Use memset instead of placement new
8224         if BROKEN_VALUE_INITIALIZATION is defined.
8225         * hash-table.h (hash_table<Descriptor, Allocator>::empty_slow): Use
8226         memset instead of value initialization if BROKEN_VALUE_INITIALIZATION
8227         is defined.
8228
8229         PR rtl-optimization/83723
8230         * lra-int.h (lra_substitute_pseudo): Add DEBUG_P argument.
8231         * lra.c (lra_substitute_pseudo): Likewise.  If true, use
8232         gen_rtx_raw_SUBREG instead of gen_rtx_SUBREG.  Pass DEBUG_P to
8233         recursive calls.
8234         (lra_substitute_pseudo_within_insn): Adjust lra_substitute_pseudo
8235         callers.
8236         * lra-constraints.c (inherit_reload_reg, split_reg): Likewise.
8237
8238 2018-02-16  Eric Botcazou  <ebotcazou@adacore.com>
8239
8240         PR rtl-optimization/81443
8241         * rtlanal.c (num_sign_bit_copies1) <SUBREG>: Do not propagate results
8242         from inner REGs to paradoxical SUBREGs.
8243
8244 2018-02-16  Richard Biener  <rguenther@suse.de>
8245
8246         PR tree-optimization/84399
8247         * graphite-scop-detection.c (scop_detection::stmt_simple_for_scop_p):
8248         For operands we can analyze at their definition make sure we can
8249         analyze them at each use as well.
8250
8251 2018-02-16  Richard Biener  <rguenther@suse.de>
8252
8253         PR tree-optimization/84190
8254         * tree-ssa.c (non_rewritable_mem_ref_base): Do not touch
8255         volatile accesses if the decl isn't volatile.
8256
8257 2018-02-15  Jason Merrill  <jason@redhat.com>
8258
8259         PR c++/84314 - ICE with templates and fastcall attribute.
8260         * attribs.c (build_type_attribute_qual_variant): Don't clobber
8261         TYPE_CANONICAL on an existing type.
8262
8263 2018-02-15  Jakub Jelinek  <jakub@redhat.com>
8264
8265         PR tree-optimization/84383
8266         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Don't look at
8267         dstoff nor call operand_equal_p if dstbase is NULL.
8268
8269         PR tree-optimization/84334
8270         * match.pd ((A +- CST1) +- CST2 -> A + CST3): If A is
8271         also a CONSTANT_CLASS_P, punt.
8272
8273 2018-02-14  Jim Wilson  <jimw@sifive.com>
8274
8275         * config/riscv/riscv.c (riscv_first_stack_step): Move locals after
8276         first SMALL_OPERAND check.  New local min_second_step.  Move assert
8277         to where locals are set.  Add TARGET_RVC support.
8278         * config/riscv/riscv.h (C_SxSP_BITS, SWSP_REACH, SDSP_REACH): New.
8279
8280 2018-02-14  Indu Bhagat  <indu.bhagat@oracle.com>
8281
8282         * doc/invoke.texi: Correct -Wformat-overflow code sample.
8283
8284 2018-02-14  Martin Sebor  <msebor@redhat.com>
8285
8286         PR tree-optimization/83698
8287         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): For
8288         arrays constrain the offset range to their bounds.
8289         (builtin_access::strcat_overlap): Adjust the bounds of overlap offset.
8290         (builtin_access::overlap): Avoid setting the size of overlap if it's
8291         already been set.
8292         (maybe_diag_overlap): Also consider arrays when deciding what values
8293         of offsets to include in diagnostics.
8294
8295 2018-02-14  Martin Sebor  <msebor@redhat.com>
8296
8297         PR c/84108
8298         * attribs.c (diag_attr_exclusions): Consider the exclusion(s)
8299         that correspond to the kind of a declaration.
8300
8301 2018-02-14  John David Anglin  <danglin@gcc.gnu.org>
8302
8303         PR target/83984
8304         * config/pa/pa.md: Load address of PIC label using the linkage table
8305         if the label is nonlocal.
8306
8307 2018-02-14  Kelvin Nilsen  <kelvin@gcc.gnu.org>
8308
8309         * config/rs6000/rs6000.c (rs6000_option_override_internal): Issue
8310         warning message if user requests -maltivec=be.
8311         * doc/invoke.texi: Document deprecation of -maltivec=be.
8312
8313 2018-02-14  Will Schmidt  <will_schmidt@vnet.ibm.com>
8314
8315         PR target/84220
8316         * config/rs6000/rs6000-c.c: Update definitions for
8317         ALTIVEC_BUILTIN_VEC_SLD, ALTIVEC_BUILTIN_VEC_SLDW,
8318         VEC_XXSLDWI and ALTIVEC_BUILTIN_VEC_XXPERMDI builtins.
8319
8320 2018-02-14  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
8321
8322         PR target/84239
8323         * config/i386/cetintrin.h: Remove _rdssp[d|q] and
8324         add _get_ssp intrinsics. Remove argument from
8325         __builtin_ia32_rdssp[d|q].
8326         * config/i386/i386-builtin-types.def: Add UINT_FTYPE_VOID.
8327         * config/i386/i386-builtin.def: Remove argument from
8328         __builtin_ia32_rdssp[d|q].
8329         * config/i386/i386.c: Use UINT_FTYPE_VOID. Use
8330         ix86_expand_special_args_builtin for _rdssp[d|q].
8331         * config/i386/i386.md: Remove argument from rdssp[si|di] insn.
8332         Clear register before usage.
8333         * doc/extend.texi: Remove argument from __builtin_ia32_rdssp[d|q].
8334         Add documentation for new _get_ssp and _inc_ssp intrinsics.
8335
8336 2018-02-14  Richard Sandiford  <richard.sandiford@linaro.org>
8337
8338         PR tree-optimization/84357
8339         * tree-data-ref.c (object_address_invariant_in_loop_p): Check
8340         operand 1 of an ARRAY_REF too.
8341
8342 2018-02-14  Oleg Endo  <olegendo@gcc.gnu.org>
8343
8344         PR target/83831
8345         * config/rx/rx-protos.h (rx_reg_dead_or_unused_after_insn,
8346         rx_copy_reg_dead_or_unused_notes, rx_fuse_in_memory_bitop): New
8347         declarations.
8348         (set_of_reg): New struct.
8349         (rx_find_set_of_reg, rx_find_use_of_reg): New functions.
8350         * config/rx/rx.c (rx_reg_dead_or_unused_after_insn,
8351         rx_copy_reg_dead_or_unused_notes, rx_fuse_in_memory_bitop): New
8352         functions.
8353         * config/rx/rx.md (andsi3, iorsi3, xorsi3): Convert to insn_and_split.
8354         Split into bitclr, bitset, bitinvert patterns if appropriate.
8355         (*bitset, *bitinvert, *bitclr): Convert to named insn_and_split and
8356         use rx_fuse_in_memory_bitop.
8357         (*bitset_in_memory, *bitinvert_in_memory, *bitclr_in_memory): Convert
8358         to named insn, correct maximum insn length.
8359
8360 2018-02-14  Jozef Lawrynowicz  <jozefl.gcc@gmail.com>
8361
8362         PR target/79242
8363         * machmode.def: Define a complex mode for PARTIAL_INT.
8364         * genmodes.c (complex_class): Return MODE_COMPLEX_INT for
8365         MODE_PARTIAL_INT.
8366         * doc/rtl.texi: Document CSPImode.
8367         * config/msp430/msp430.c (msp430_hard_regno_nregs): Add CPSImode
8368         handling.
8369         (msp430_hard_regno_nregs_with_padding): Likewise.
8370
8371 2018-02-13  Peter Bergner  <bergner@vnet.ibm.com>
8372
8373         PR target/84279
8374         * config/rs6000/rs6000.c (mem_operand_gpr): Disallow altivec addresses.
8375
8376 2018-02-13  Segher Boessenkool  <segher@kernel.crashing.org>
8377
8378         PR rtl-optimization/84169
8379         * combine.c (try_combine): New variable split_i2i3.  Set it to true if
8380         we generated a parallel as new i3 and we split that to new i2 and i3
8381         instructions.  Handle split_i2i3 similar to swap_i2i3: scan the
8382         LOG_LINKs of i3 to see which of those need to link to i2 now.  Link
8383         those to i2, not i1.  Partially rewrite this scan code.
8384
8385 2018-02-13  Jakub Jelinek  <jakub@redhat.com>
8386
8387         PR c/82210
8388         * stor-layout.c (place_field): For variable length fields, adjust
8389         offset_align afterwards not just based on the field's alignment,
8390         but also on the size.
8391
8392         PR middle-end/84309
8393         * match.pd (pow(C,x) -> exp(log(C)*x)): Use exp2s and log2s instead
8394         of exps and logs in the use_exp2 case.
8395
8396 2018-02-13  Jeff Law  <law@redhat.com>
8397
8398         * config/rl/rl78.c (rl78_attribute_table): Fix terminator and
8399         entry for "vector".
8400
8401         * config/rl78/rl78.c (rl78_handle_func_attribute): Mark
8402         ARGS as unused.
8403
8404 2018-02-13  Alexandre Oliva  <aoliva@redhat.com>
8405
8406         PR debug/84342
8407         PR debug/84319
8408         * common.opt (gas-loc-support, gas-locview-support): New.
8409         (ginline-points, ginternal-reset-location-views): New.
8410         * doc/invoke.texi: Document them.  Use @itemx where intended.
8411         (gvariable-location-views): Adjust.
8412         * target.def (reset_location_view): New.
8413         * doc/tm.texi.in (DWARF2_ASM_VIEW_DEBUG_INFO): New.
8414         (TARGET_RESET_LOCATION_VIEW): New.
8415         * doc/tm.texi: Rebuilt.
8416         * dwarf2out.c (dwarf2out_default_as_loc_support): New.
8417         (dwarf2out_default_as_locview_support): New.
8418         (output_asm_line_debug_info): Use option variables.
8419         (dwarf2out_maybe_output_loclist_view_pair): Likewise.
8420         (output_loc_list): Likewise.
8421         (add_high_low_attributes): Check option variables.
8422         Don't output entry view attribute in strict mode.
8423         (gen_inlined_subroutine_die): Check option variables.
8424         (dwarf2out_inline_entry): Likewise.
8425         (init_sections_and_labels): Likewise.
8426         (dwarf2out_early_finish): Likewise.
8427         (maybe_reset_location_view): New, from...
8428         (dwarf2out_var_location): ... here.  Call it.
8429         * debug.h (dwarf2out_default_as_loc_support): Declare.
8430         (dwarf2out_default_as_locview_support): Declare.
8431         * hooks.c (hook_int_rtx_insn_0): New.
8432         * hooks.h (hook_int_rtx_insn_0): Declare.
8433         * toplev.c (process_options): Take -gas-loc-support and
8434         -gas-locview-support from dwarf2out.  Enable
8435         -gvariable-location-views by default only with locview
8436         assembler support.  Enable -ginternal-reset-location-views by
8437         default only if the target defines the corresponding hook.
8438         Enable -ginline-points by default if location views are
8439         enabled; force it disabled if statement frontiers are
8440         disabled.
8441         * tree-inline.c (expand_call_inline): Check option variables.
8442         * tree-ssa-live.c (remove_unused_scope_block_p): Likewise.
8443
8444 2018-02-13  Richard Sandiford  <richard.sandiford@linaro.org>
8445
8446         PR tree-optimization/84321
8447         * tree-vrp.c (intersect_range_with_nonzero_bits): Fix VR_ANTI_RANGE
8448         handling.  Also check whether the anti-range contains any values
8449         that satisfy the mask; switch to a VR_RANGE if not.
8450
8451 2018-02-13  Paolo Bonzini  <bonzini@gnu.org>
8452
8453         PR sanitizer/84340
8454         * internal-fn.def (ASAN_CHECK, ASAN_MARK): Revert changes to fnspec.
8455
8456 2018-02-13  Martin Jambor  <mjambor@suse.cz>
8457
8458         PR c++/83990
8459         * ipa-param-manipulation.c (ipa_modify_call_arguments): Use location
8460         of call statements, also set location of a load to a temporary.
8461
8462 2018-02-13  Sebastian Perta  <sebastian.perta@renesas.com>
8463
8464         * config/rl78/rl78.c (add_vector_labels): New function.
8465         * config/rl78/rl78.c (rl78_handle_vector_attribute): New function.
8466         * config/rl78/rl78.c (rl78_start_function): Call add_vector_labels.
8467         * config/rl78/rl78.c (rl78_handle_func_attribute): Removed the assert
8468         which checks that no arguments are passed.
8469         * config/rl78/rl78.c (rl78_attribute_table): Add "vector" attribute.
8470         * doc/extend.texi: Documentation for the new attribute.
8471
8472 2018-02-13  Andreas Schwab  <schwab@suse.de>
8473
8474         * config/riscv/linux.h (CPP_SPEC): Define.
8475
8476 2018-02-13  Jakub Jelinek  <jakub@redhat.com>
8477
8478         PR target/84335
8479         * config/i386/i386.c (ix86_init_mmx_sse_builtins): Pass
8480         OPTION_MASK_ISA_AES | OPTION_MASK_ISA_SSE2 instead of
8481         OPTION_MASK_ISA_AES as first argument to def_builtin_const
8482         for AES builtins.  Pass OPTION_MASK_ISA_PCLMUL | OPTION_MASK_ISA_SSE2
8483         instead of OPTION_MASK_ISA_PCLMUL as first argument to
8484         def_builtin_const for __builtin_ia32_pclmulqdq128 builtin.
8485         * config/i386/wmmintrin.h: If __SSE2__ is not defined, enable it
8486         temporarily for AES and PCLMUL builtins.
8487
8488         PR tree-optimization/84339
8489         * gimple-fold.c (get_range_strlen): Set *FLEXP to true when handling
8490         ARRAY_REF where first operand is array_at_struct_end_p COMPONENT_REF.
8491         Formatting fixes.
8492
8493         PR middle-end/84309
8494         * match.pd (pow(C,x) -> exp(log(C)*x)): Optimize instead into
8495         exp2(log2(C)*x) if C is a power of 2 and c99 runtime is available.
8496         * generic-match-head.c (canonicalize_math_after_vectorization_p): New
8497         inline function.
8498         * gimple-match-head.c (canonicalize_math_after_vectorization_p): New
8499         inline function.
8500         * omp-simd-clone.h: New file.
8501         * omp-simd-clone.c: Include omp-simd-clone.h.
8502         (expand_simd_clones): No longer static.
8503         * tree-vect-patterns.c: Include fold-const-call.h, attribs.h,
8504         cgraph.h and omp-simd-clone.h.
8505         (vect_recog_pow_pattern): Optimize pow(C,x) to exp(log(C)*x).
8506         (vect_recog_widen_shift_pattern): Formatting fix.
8507         (vect_pattern_recog_1): Don't check optab for calls.
8508
8509         PR target/84336
8510         * config/i386/sse.md (<avx512>_vpermi2var<mode>3_mask): Force
8511         operands[2] into a REG before using gen_lowpart on it.
8512
8513 2018-02-12  Jeff Law  <law@redhat.com>
8514
8515         PR target/83760
8516         * config/sh/sh.c (find_barrier): Consider a sibling call
8517         a barrier as well.
8518
8519         * cse.c (try_back_substitute_reg): Move any REG_ARGS_SIZE note when
8520         successfully back substituting a reg.
8521
8522 2018-02-12  Richard Biener  <rguenther@suse.de>
8523
8524         PR tree-optimization/84037
8525         * tree-vect-slp.c (vect_analyze_slp_cost): Add visited
8526         parameter, move visited init to caller.
8527         (vect_slp_analyze_operations): Separate cost from validity
8528         check, initialize visited once for all instances.
8529         (vect_schedule_slp): Analyze map to CSE vectorized nodes once
8530         for all instances.
8531         * tree-vect-stmts.c (vect_model_simple_cost): Make early
8532         out an assert.
8533         (vect_model_promotion_demotion_cost): Likewise.
8534         (vectorizable_bswap): Guard cost modeling with !slp_node
8535         instead of !PURE_SLP_STMT to avoid double-counting on hybrid
8536         SLP stmts.
8537         (vectorizable_call): Likewise.
8538         (vectorizable_conversion): Likewise.
8539         (vectorizable_assignment): Likewise.
8540         (vectorizable_shift): Likewise.
8541         (vectorizable_operation): Likewise.
8542         (vectorizable_store): Likewise.
8543         (vectorizable_load): Likewise.
8544         (vectorizable_condition): Likewise.
8545         (vectorizable_comparison): Likewise.
8546
8547 2018-02-12  Paolo Bonzini  <bonzini@gnu.org>
8548
8549         PR sanitizer/84307
8550         * internal-fn.def (ASAN_CHECK): Fix fnspec to account for return value.
8551         (ASAN_MARK): Fix fnspec to account for return value, change pointer
8552         argument from 'R' to 'W' so that the pointed-to datum is clobbered.
8553
8554 2018-02-08  Jan Hubicka  <hubicka@ucw.cz>
8555
8556         PR middle-end/83665
8557         * params.def (inline-min-speedup): Increase from 8 to 15.
8558         (max-inline-insns-auto): Decrease from 40 to 30.
8559         * ipa-split.c (consider_split): Add some buffer for function to
8560         be considered inlining candidate.
8561         * invoke.texi (max-inline-insns-auto, inline-min-speedup): UPdate
8562         default values.
8563
8564 2018-02-12  Richard Biener  <rguenther@suse.de>
8565
8566         PR tree-optimization/84037
8567         * tree-vect-slp.c (vect_build_slp_tree_2): Try swapping the
8568         matched stmts if we cannot swap the non-matched ones.
8569
8570 2018-02-12  Olga Makhotina  <olga.makhotina@intel.com>
8571
8572         * config/i386/avx512fintrin.h (_mm_mask_scalef_round_sd,
8573         _mm_maskz_scalef_round_sd, _mm_mask_scalef_round_ss,
8574         _mm_maskz_scalef_round_ss): New intrinsics.
8575         (__builtin_ia32_scalefsd_round, __builtin_ia32_scalefss_round): Fix.
8576         * config/i386/i386-builtin.def (__builtin_ia32_scalefsd_round,
8577         __builtin_ia32_scalefss_round): Remove.
8578         (__builtin_ia32_scalefsd_mask_round,
8579         __builtin_ia32_scalefss_mask_round): New intrinsics.
8580         * config/i386/sse.md (vmscalef<mode><round_name>): Renamed to ...
8581         (vmscalef<mode><mask_scalar_name><round_scalar_name>): ... this.
8582         ((match_operand:VF_128 2 "<round_nimm_predicate>"
8583         "<round_constraint>")): Changed to ...
8584         ((match_operand:VF_128 2 "<round_scalar_nimm_predicate>"
8585         "<round_scalar_constraint>")): ... this.
8586         ("vscalef<ssescalarmodesuffix>\t{<round_op3>%2, %1, %0|
8587         %0, %1, %2<round_op3>}"): Changed to ...
8588         ("vscalef<ssescalarmodesuffix>\t{<round_scalar_mask_op3>%2, %1,
8589         %0<mask_scalar_operand3>|%0<mask_scalar_operand3>, %1,
8590         %2<round_scalar_mask_op3>}"): ... this.
8591         * config/i386/subst.md (round_scalar_nimm_predicate): New.
8592
8593 2018-02-12  Olga Makhotina  <olga.makhotina@intel.com>
8594
8595         * config/i386/avx512fintrin.h (_mm_mask_sqrt_round_sd)
8596         (_mm_maskz_sqrt_round_sd, _mm_mask_sqrt_round_ss)
8597         (_mm_maskz_sqrt_round_ss): New intrinsics.
8598         (__builtin_ia32_sqrtsd_round, __builtin_ia32_sqrtss_round): Remove.
8599         (__builtin_ia32_sqrtsd_mask_round)
8600         (__builtin_ia32_sqrtss_mask_round): New builtins.
8601         * config/i386/i386-builtin.def (__builtin_ia32_sqrtsd_round)
8602         (__builtin_ia32_sqrtss_round): Remove.
8603         (__builtin_ia32_sqrtsd_mask_round)
8604         (__builtin_ia32_sqrtss_mask_round): New builtins.
8605         * config/i386/sse.md (vmsqrt<mode>2<round_name>): Renamed to ...
8606         (vmsqrt<mode>2<mask_scalar_name><round_scalar_name>): ... this.
8607         ((match_operand:VF_128 1 "vector_operand"
8608         "xBm,<round_constraint>")): Changed to ...
8609         ((match_operand:VF_128 1 "vector_operand"
8610         "xBm,<round_scalar_constraint>")): ... this.
8611         (vsqrt<ssescalarmodesuffix>\t{<round_op3>%1, %2, %0|
8612         %0, %2, %<iptr>1<round_op3>}): Changed to ...
8613         (vsqrt<ssescalarmodesuffix>\t{<round_scalar_mask_op3>%1, %2,
8614         %0<mask_scalar_operand3>|%0<mask_scalar_operand3>, %2,
8615         %<iptr>1<round_scalar_mask_op3>}): ... this.
8616         ((set_attr "prefix" "<round_prefix>")): Changed to ...
8617         ((set_attr "prefix" "<round_scalar_prefix>")): ... this.
8618
8619 2018-02-11  Steven Munroe  <munroesj@gcc.gnu.org>
8620
8621         PR target/84266
8622         * config/rs6000/mmintrin.h (_mm_cmpeq_pi32 [_ARCH_PWR9]):
8623         Cast vec_cmpeq result to correct type.
8624         * config/rs6000/mmintrin.h (_mm_cmpgt_pi32 [_ARCH_PWR9]):
8625         Cast vec_cmpgt result to correct type.
8626
8627 2018-02-11  Alexandre Oliva  <aoliva@redhat.com>
8628
8629         * final.c (final_scan_insn_1): Renamed from...
8630         (final_scan_insn): ... this.  New wrapper, to recover
8631         seen from the outermost call in recursive ones.
8632         * config/sparc/sparc.c (output_return): Drop seen from call.
8633         (output_sibcall): Likewise.
8634         * config/visium/visium.c (output_branch): Likewise.
8635
8636 2018-02-10  John David Anglin  <danglin@gcc.gnu.org>
8637
8638         * config/pa/pa.c (hppa_profile_hook): Mark SYMBOL_REF for _mcount as
8639         function label.
8640
8641 2018-02-10  Alan Modra  <amodra@gmail.com>
8642
8643         PR target/84300
8644         * config/rs6000/rs6000.md (split_stack_return): Remove (use ..).
8645         Specify LR as an input.
8646
8647 2018-02-10  Jakub Jelinek  <jakub@redhat.com>
8648
8649         PR sanitizer/83987
8650         * omp-low.c (maybe_remove_omp_member_access_dummy_vars,
8651         remove_member_access_dummy_vars): New functions.
8652         (lower_omp_for, lower_omp_taskreg, lower_omp_target,
8653         lower_omp_1, execute_lower_omp): Use them.
8654
8655         PR rtl-optimization/84308
8656         * shrink-wrap.c (spread_components): Release todo vector.
8657
8658 2018-02-09  Vladimir Makarov  <vmakarov@redhat.com>
8659
8660         PR rtl-optimization/57193
8661         * ira-color.c (struct allocno_color_data): Add member
8662         conflict_allocno_hard_prefs.
8663         (update_conflict_allocno_hard_prefs): New.
8664         (bucket_allocno_compare_func): Add a preference based on
8665         conflict_allocno_hard_prefs.
8666         (push_allocno_to_stack): Update conflict_allocno_hard_prefs.
8667         (color_allocnos): Remove a dead code.  Initiate
8668         conflict_allocno_hard_prefs.  Call update_costs_from_prefs.
8669
8670 2018-02-09  Jakub Jelinek  <jakub@redhat.com>
8671
8672         PR target/84226
8673         * config/rs6000/vsx.md (p9_xxbrq_v16qi): Change input operand
8674         constraint from =wa to wa.  Avoid a subreg on the output operand,
8675         instead use a pseudo and subreg it in a move.
8676         (p9_xxbrd_<mode>): Changed to ...
8677         (p9_xxbrd_v2di): ... this insn, without VSX_D iterator.
8678         (p9_xxbrd_v2df): New expander.
8679         (p9_xxbrw_<mode>): Changed to ...
8680         (p9_xxbrw_v4si): ... this insn, without VSX_W iterator.
8681         (p9_xxbrw_v4sf): New expander.
8682
8683 2018-02-09  Sebastian Perta  <sebastian.perta@renesas.com>
8684
8685         * config/rx/rx.md (movsicc): Update expander to be matched by GCC.
8686
8687 2018-02-09  Peter Bergner  <bergner@vnet.ibm.com>
8688
8689         PR target/83926
8690         * config/rs6000/vsx.md (vsx_mul_v2di): Handle generating a 64-bit
8691         multiply in 32-bit mode.
8692         (vsx_div_v2di): Handle generating a 64-bit signed divide in 32-bit mode.
8693         (vsx_udiv_v2di): Handle generating a 64-bit unsigned divide in 32-bit
8694         mode.
8695
8696 2018-02-09  Sebastian Perta  <sebastian.perta@renesas.com>
8697
8698         * config/rx/constraints.md (CALL_OP_SYMBOL_REF): Added new constraint
8699         to allow or block "symbol_ref" depending on the value of TARGET_JSR.
8700         * config/rx/rx.md (call_internal): Use CALL_OP_SYMBOL_REF.
8701         * config/rx/rx.md (call_value_internal): Use CALL_OP_SYMBOL_REF.
8702
8703 2018-02-09  Pierre-Marie de Rodat  <derodat@adacore.com>
8704
8705         PR lto/84213
8706         * dwarf2out.c (is_trivial_indirect_ref): New function.
8707         (dwarf2out_late_global_decl): Do not generate a location
8708         attribute for variables that have a non-trivial DECL_VALUE_EXPR
8709         and that are not defined in the current unit.
8710
8711 2018-02-09  Eric Botcazou  <ebotcazou@adacore.com>
8712
8713         * optabs.c (prepare_cmp_insn): Try harder to emit a direct comparison
8714         instead of a libcall for UNORDERED.
8715
8716 2018-02-09  Tamar Christina  <tamar.christina@arm.com>
8717
8718         PR target/82641
8719         * config/arm/arm-c.c (arm_cpu_builtins): Un-define __ARM_FEATURE_LDREX,
8720         __ARM_ARCH_PROFILE, __ARM_ARCH_ISA_THUMB, __ARM_FP and __ARM_NEON_FP.
8721
8722 2018-02-09  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
8723
8724         PR target/PR84295
8725         * config/s390/s390.c (s390_set_current_function): Invoke
8726         s390_indirect_branch_settings also if fndecl didn't change.
8727
8728 2018-02-09  Alexandre Oliva  <aoliva@redhat.com>
8729
8730         * config/rs6000/rs6000.md (blockage): Set length to zero.
8731
8732 2018-02-09  Eric Botcazou  <ebotcazou@adacore.com>
8733
8734         * expr.c (optimize_bitfield_assignment_op): Remove obsolete assertion.
8735
8736 2018-02-09  Jakub Jelinek  <jakub@redhat.com>
8737
8738         PR sanitizer/84285
8739         * gcc.c (STATIC_LIBASAN_LIBS, STATIC_LIBTSAN_LIBS,
8740         STATIC_LIBLSAN_LIBS, STATIC_LIBUBSAN_LIBS): Handle -static like
8741         -static-lib*san.
8742
8743         PR debug/84252
8744         * var-tracking.c (vt_add_function_parameter): Punt for non-onepart
8745         PARALLEL incoming that failed vt_get_decl_and_offset check.
8746
8747         PR middle-end/84237
8748         * output.h (bss_initializer_p): Add NAMED argument, defaulted to false.
8749         * varasm.c (bss_initializer_p): Add NAMED argument, if true, ignore
8750         TREE_READONLY bit.
8751         (get_variable_section): For decls in named .bss* sections pass true as
8752         second argument to bss_initializer_p.
8753
8754 2018-02-09  Marek Polacek  <polacek@redhat.com>
8755             Jakub Jelinek  <jakub@redhat.com>
8756
8757         PR c++/83659
8758         * fold-const.c (fold_indirect_ref_1): Use VECTOR_TYPE_P macro.
8759         Formatting fixes.  Verify first that tree_fits_poly_int64_p (op01).
8760         Sync some changes from cxx_fold_indirect_ref.
8761
8762 2018-02-09  Alexandre Oliva  <aoliva@redhat.com>
8763
8764         * cfgexpand.c (expand_gimple_basic_block): Handle inline entry
8765         markers.
8766         * dwarf2out.c (dwarf2_debug_hooks): Enable inline_entry hook.
8767         (BLOCK_INLINE_ENTRY_LABEL): New.
8768         (dwarf2out_var_location): Disregard inline entry markers.
8769         (inline_entry_data): New struct.
8770         (inline_entry_data_hasher): New hashtable type.
8771         (inline_entry_data_hasher::hash): New.
8772         (inline_entry_data_hasher::equal): New.
8773         (inline_entry_data_table): New variable.
8774         (add_high_low_attributes): Add DW_AT_entry_pc and
8775         DW_AT_GNU_entry_view attributes if a pending entry is found
8776         in inline_entry_data_table.  Add old entry_pc attribute only
8777         if debug nonbinding markers are disabled.
8778         (gen_inlined_subroutine_die): Set BLOCK_DIE if nonbinding
8779         markers are enabled.
8780         (block_within_block_p, dwarf2out_inline_entry): New.
8781         (dwarf2out_finish): Check that no entries remained in
8782         inline_entry_data_table.
8783         * final.c (reemit_insn_block_notes): Handle inline entry notes.
8784         (final_scan_insn, notice_source_line): Likewise.
8785         (rest_of_clean_state): Skip inline entry markers.
8786         * gimple-pretty-print.c (dump_gimple_debug): Handle inline entry
8787         markers.
8788         * gimple.c (gimple_build_debug_inline_entry): New.
8789         * gimple.h (enum gimple_debug_subcode): Add
8790         GIMPLE_DEBUG_INLINE_ENTRY.
8791         (gimple_build_debug_inline_entry): Declare.
8792         (gimple_debug_inline_entry_p): New.
8793         (gimple_debug_nonbind_marker_p): Adjust.
8794         * insn-notes.def (INLINE_ENTRY): New.
8795         * print-rtl.c (rtx_writer::print_rtx_operand_code_0): Handle
8796         inline entry marker notes.
8797         (print_insn): Likewise.
8798         * rtl.h (NOTE_MARKER_P): Add INLINE_ENTRY support.
8799         (INSN_DEBUG_MARKER_KIND): Likewise.
8800         (GEN_RTX_DEBUG_MARKER_INLINE_ENTRY_PAT): New.
8801         * tree-inline.c (expand_call_inline): Build and insert
8802         debug_inline_entry stmt.
8803         * tree-ssa-live.c (remove_unused_scope_block_p): Preserve
8804         inline entry blocks early, if nonbind markers are enabled.
8805         (dump_scope_block): Dump fragment info.
8806         * var-tracking.c (reemit_marker_as_note): Handle inline entry note.
8807         * doc/gimple.texi (gimple_debug_inline_entry_p): New.
8808         (gimple_build_debug_inline_entry): New.
8809         * doc/invoke.texi (gstatement-frontiers, gno-statement-frontiers):
8810         Enable/disable inline entry points too.
8811         * doc/rtl.texi (NOTE_INSN_INLINE_ENTRY): New.
8812         (DEBUG_INSN): Describe inline entry markers.
8813
8814         * common.opt (gvariable-location-views): New.
8815         (gvariable-location-views=incompat5): New.
8816         * config.in: Rebuilt.
8817         * configure: Rebuilt.
8818         * configure.ac: Test assembler for view support.
8819         * dwarf2asm.c (dw2_asm_output_symname_uleb128): New.
8820         * dwarf2asm.h (dw2_asm_output_symname_uleb128): Declare.
8821         * dwarf2out.c (var_loc_view): New typedef.
8822         (struct dw_loc_list_struct): Add vl_symbol, vbegin, vend.
8823         (dwarf2out_locviews_in_attribute): New.
8824         (dwarf2out_locviews_in_loclist): New.
8825         (dw_val_equal_p): Compare val_view_list of dw_val_class_view_lists.
8826         (enum dw_line_info_opcode): Add LI_adv_address.
8827         (struct dw_line_info_table): Add view.
8828         (RESET_NEXT_VIEW, RESETTING_VIEW_P): New macros.
8829         (DWARF2_ASM_VIEW_DEBUG_INFO): Define default.
8830         (zero_view_p): New variable.
8831         (ZERO_VIEW_P): New macro.
8832         (output_asm_line_debug_info): New.
8833         (struct var_loc_node): Add view.
8834         (add_AT_view_list, AT_loc_list): New.
8835         (add_var_loc_to_decl): Add view param.  Test it against last.
8836         (new_loc_list): Add view params.  Record them.
8837         (AT_loc_list_ptr): Handle loc and view lists.
8838         (view_list_to_loc_list_val_node): New.
8839         (print_dw_val): Handle dw_val_class_view_list.
8840         (size_of_die): Likewise.
8841         (value_format): Likewise.
8842         (loc_list_has_views): New.
8843         (gen_llsym): Set vl_symbol too.
8844         (maybe_gen_llsym, skip_loc_list_entry): New.
8845         (dwarf2out_maybe_output_loclist_view_pair): New.
8846         (output_loc_list): Output view list or entries too.
8847         (output_view_list_offset): New.
8848         (output_die): Handle dw_val_class_view_list.
8849         (output_dwarf_version): New.
8850         (output_compilation_unit_header): Use it.
8851         (output_skeleton_debug_sections): Likewise.
8852         (output_rnglists, output_line_info): Likewise.
8853         (output_pubnames, output_aranges): Update version comments.
8854         (output_one_line_info_table): Output view numbers in asm comments.
8855         (dw_loc_list): Determine current endview, pass it to new_loc_list.
8856         Call maybe_gen_llsym.
8857         (loc_list_from_tree_1): Adjust.
8858         (add_AT_location_description): Create view list attribute if
8859         needed, check it's absent otherwise.
8860         (convert_cfa_to_fb_loc_list): Adjust.
8861         (maybe_emit_file): Call output_asm_line_debug_info for test.
8862         (dwarf2out_var_location): Reset views as needed.  Precompute
8863         add_var_loc_to_decl args.  Call get_attr_min_length only if we have the
8864         attribute.  Set view.
8865         (new_line_info_table): Reset next view.
8866         (set_cur_line_info_table): Call output_asm_line_debug_info for test.
8867         (dwarf2out_source_line): Likewise.  Output view resets and labels to
8868         the assembler, or select appropriate line info opcodes.
8869         (prune_unused_types_walk_attribs): Handle dw_val_class_view_list.
8870         (optimize_string_length): Catch it.  Adjust.
8871         (resolve_addr): Copy vl_symbol along with ll_symbol.  Handle
8872         dw_val_class_view_list, and remove it if no longer needed.
8873         (hash_loc_list): Hash view numbers.
8874         (loc_list_hasher::equal): Compare them.
8875         (optimize_location_lists): Check whether a view list symbol is
8876         needed, and whether the locview attribute is present, and
8877         whether they match.  Remove the locview attribute if no longer
8878         needed.
8879         (index_location_lists): Call skip_loc_list_entry for test.
8880         (dwarf2out_finish): Call output_asm_line_debug_info for test.
8881         Use output_dwarf_version.
8882         * dwarf2out.h (enum dw_val_class): Add dw_val_class_view_list.
8883         (struct dw_val_node): Add val_view_list.
8884         * final.c (SEEN_NEXT_VIEW): New.
8885         (set_next_view_needed): New.
8886         (clear_next_view_needed): New.
8887         (maybe_output_next_view): New.
8888         (final_start_function): Rename to...
8889         (final_start_function_1): ... this.  Take pointer to FIRST,
8890         add SEEN parameter.  Emit param bindings in the initial view.
8891         (final_start_function): Reintroduce SEEN-less interface.
8892         (final): Rename to...
8893         (final_1): ... this.  Take SEEN parameter.  Output final pending
8894         next view at the end.
8895         (final): Reintroduce seen-less interface.
8896         (final_scan_insn): Output pending next view before switching
8897         sections or ending a block.  Mark the next view as needed when
8898         outputting variable locations.  Notify debug backend of section
8899         changes, and of location view changes.
8900         (rest_of_handle_final): Adjust.
8901         * toplev.c (process_options): Autodetect value for debug variable
8902         location views option.  Warn on incompat5 without -gdwarf-5.
8903         * doc/invoke.texi (gvariable-location-views): New.
8904         (gvariable-location-views=incompat5): New.
8905         (gno-variable-location-views): New.
8906
8907 2018-02-08  David Malcolm  <dmalcolm@redhat.com>
8908
8909         PR tree-optimization/84136
8910         * tree-cfg.c (find_taken_edge_computed_goto): Remove assertion
8911         that the result of find_edge is non-NULL.
8912
8913 2018-02-08  Sergey Shalnov  <sergey.shalnov@intel.com>
8914
8915         PR target/83008
8916         * config/i386/x86-tune-costs.h (skylake_cost): Fix cost of
8917         storing integer register in SImode.  Fix cost of 256 and 512
8918         byte aligned SSE register store.
8919
8920 2018-02-08  Sergey Shalnov  <sergey.shalnov@intel.com>
8921
8922         * config/i386/i386.c (ix86_multiplication_cost): Fix
8923         multiplication cost for TARGET_AVX512DQ.
8924
8925 2018-02-08  Marek Polacek  <polacek@redhat.com>
8926
8927         PR tree-optimization/84238
8928         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Verify the result of
8929         get_range_strlen.
8930
8931 2018-02-08  Richard Sandiford  <richard.sandiford@linaro.org>
8932
8933         PR tree-optimization/84265
8934         * tree-vect-stmts.c (vectorizable_store): Don't treat
8935         VMAT_CONTIGUOUS accesses as grouped.
8936         (vectorizable_load): Likewise.
8937
8938 2018-02-08  Richard Sandiford  <richard.sandiford@linaro.org>
8939
8940         PR tree-optimization/81635
8941         * wide-int.h (wi::round_down_for_mask, wi::round_up_for_mask): Declare.
8942         * wide-int.cc (wi::round_down_for_mask, wi::round_up_for_mask)
8943         (test_round_for_mask): New functions.
8944         (wide_int_cc_tests): Call test_round_for_mask.
8945         * tree-vrp.h (intersect_range_with_nonzero_bits): Declare.
8946         * tree-vrp.c (intersect_range_with_nonzero_bits): New function.
8947         * tree-data-ref.c (split_constant_offset_1): Use it to refine the
8948         range returned by get_range_info.
8949
8950 2018-02-08  Jan Hubicka  <hubicka@ucw.cz>
8951
8952         PR ipa/81360
8953         * cgraph.h (symtab_node::output_to_lto_symbol_table_p): Declare
8954         * symtab.c: Include builtins.h
8955         (symtab_node::output_to_lto_symbol_table_p): Move here
8956         from lto-streamer-out.c:output_symbol_p.
8957         * lto-streamer-out.c (write_symbol): Turn early exit to assert.
8958         (output_symbol_p): Move all logic to symtab.c
8959         (produce_symtab): Update.
8960
8961 2018-02-08  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
8962
8963         * config/s390/s390-opts.h (enum indirect_branch): Define.
8964         * config/s390/s390-protos.h (s390_return_addr_from_memory)
8965         (s390_indirect_branch_via_thunk)
8966         (s390_indirect_branch_via_inline_thunk): Add function prototypes.
8967         (enum s390_indirect_branch_type): Define.
8968         * config/s390/s390.c (struct s390_frame_layout, struct
8969         machine_function): Remove.
8970         (indirect_branch_prez10thunk_mask, indirect_branch_z10thunk_mask)
8971         (indirect_branch_table_label_no, indirect_branch_table_name):
8972         Define variables.
8973         (INDIRECT_BRANCH_NUM_OPTIONS): Define macro.
8974         (enum s390_indirect_branch_option): Define.
8975         (s390_return_addr_from_memory): New function.
8976         (s390_handle_string_attribute): New function.
8977         (s390_attribute_table): Add new attribute handler.
8978         (s390_execute_label): Handle UNSPEC_EXECUTE_JUMP patterns.
8979         (s390_indirect_branch_via_thunk): New function.
8980         (s390_indirect_branch_via_inline_thunk): New function.
8981         (s390_function_ok_for_sibcall): When jumping via thunk disallow
8982         sibling call optimization for non z10 compiles.
8983         (s390_emit_call): Force indirect branch target to be a single
8984         register.  Add r1 clobber for non-z10 compiles.
8985         (s390_emit_epilogue): Emit return jump via return_use expander.
8986         (s390_reorg): Handle JUMP_INSNs as execute targets.
8987         (s390_option_override_internal): Perform validity checks for the
8988         new command line options.
8989         (s390_indirect_branch_attrvalue): New function.
8990         (s390_indirect_branch_settings): New function.
8991         (s390_set_current_function): Invoke s390_indirect_branch_settings.
8992         (s390_output_indirect_thunk_function):  New function.
8993         (s390_code_end): Implement target hook.
8994         (s390_case_values_threshold): Implement target hook.
8995         (TARGET_ASM_CODE_END, TARGET_CASE_VALUES_THRESHOLD): Define target
8996         macros.
8997         * config/s390/s390.h (struct s390_frame_layout)
8998         (struct machine_function): Move here from s390.c.
8999         (TARGET_INDIRECT_BRANCH_NOBP_RET)
9000         (TARGET_INDIRECT_BRANCH_NOBP_JUMP)
9001         (TARGET_INDIRECT_BRANCH_NOBP_JUMP_THUNK)
9002         (TARGET_INDIRECT_BRANCH_NOBP_JUMP_INLINE_THUNK)
9003         (TARGET_INDIRECT_BRANCH_NOBP_CALL)
9004         (TARGET_DEFAULT_INDIRECT_BRANCH_TABLE)
9005         (TARGET_INDIRECT_BRANCH_THUNK_NAME_EXRL)
9006         (TARGET_INDIRECT_BRANCH_THUNK_NAME_EX)
9007         (TARGET_INDIRECT_BRANCH_TABLE): Define macros.
9008         * config/s390/s390.md (UNSPEC_EXECUTE_JUMP)
9009         (INDIRECT_BRANCH_THUNK_REGNUM): Define constants.
9010         (mnemonic attribute): Add values which aren't recognized
9011         automatically.
9012         ("*cjump_long", "*icjump_long", "*basr", "*basr_r"): Disable
9013         pattern for branch conversion.  Fix mnemonic attribute.
9014         ("*c<code>", "*sibcall_br", "*sibcall_value_br", "*return"): Emit
9015         indirect branch via thunk if requested.
9016         ("indirect_jump", "<code>"): Expand patterns for branch conversion.
9017         ("*indirect_jump"): Disable for branch conversion using out of
9018         line thunks.
9019         ("indirect_jump_via_thunk<mode>_z10")
9020         ("indirect_jump_via_thunk<mode>")
9021         ("indirect_jump_via_inlinethunk<mode>_z10")
9022         ("indirect_jump_via_inlinethunk<mode>", "*casesi_jump")
9023         ("casesi_jump_via_thunk<mode>_z10", "casesi_jump_via_thunk<mode>")
9024         ("casesi_jump_via_inlinethunk<mode>_z10")
9025         ("casesi_jump_via_inlinethunk<mode>", "*basr_via_thunk<mode>_z10")
9026         ("*basr_via_thunk<mode>", "*basr_r_via_thunk_z10")
9027         ("*basr_r_via_thunk", "return<mode>_prez10"): New pattern.
9028         ("*indirect2_jump"): Disable for branch conversion.
9029         ("casesi_jump"): Turn into expander and expand patterns for branch
9030         conversion.
9031         ("return_use"): New expander.
9032         ("*return"): Emit return via thunk and rename it to ...
9033         ("*return<mode>"): ... this one.
9034         * config/s390/s390.opt: Add new options and and enum for the
9035         option values.
9036
9037 2018-02-08  Richard Sandiford  <richard.sandiford@linaro.org>
9038
9039         * lra-constraints.c (match_reload): Unconditionally use
9040         gen_lowpart_SUBREG, rather than selecting between that
9041         and equivalent gen_rtx_SUBREG code.
9042
9043 2018-02-08  Richard Biener  <rguenther@suse.de>
9044
9045         PR tree-optimization/84233
9046         * tree-ssa-phiprop.c (propagate_with_phi): Use separate
9047         changed flag instead of boguously re-using phi_inserted.
9048
9049 2018-02-08  Martin Jambor  <mjambor@suse.cz>
9050
9051         * hsa-gen.c (get_symbol_for_decl): Set program allocation for
9052         static local variables.
9053
9054 2018-02-08  Richard Biener  <rguenther@suse.de>
9055
9056         PR tree-optimization/84278
9057         * tree-vect-stmts.c (vectorizable_store): When looking for
9058         smaller vector types to perform grouped strided loads/stores
9059         make sure the mode is supported by the target.
9060         (vectorizable_load): Likewise.
9061
9062 2018-02-08  Wilco Dijkstra  <wdijkstr@arm.com>
9063
9064         * config/aarch64/aarch64.c (aarch64_components_for_bb):
9065         Increase LDP/STP opportunities by adding adjacent callee-saves.
9066
9067 2018-02-08  Wilco Dijkstra  <wdijkstr@arm.com>
9068
9069         PR rtl-optimization/84068
9070         PR rtl-optimization/83459
9071         * haifa-sched.c (rank_for_schedule): Fix SCHED_PRESSURE_MODEL sorting.
9072
9073 2018-02-08  Aldy Hernandez  <aldyh@redhat.com>
9074
9075         PR tree-optimization/84224
9076         * gimple-ssa-warn-alloca.c (pass_walloca::execute): Remove assert.
9077         * calls.c (gimple_alloca_call_p): Only return TRUE when we have
9078         non-zero arguments.
9079
9080 2018-02-07  Iain Sandoe  <iain@codesourcery.com>
9081
9082         PR target/84113
9083         * config/rs6000/altivec.md (*restore_world): Remove LR use.
9084         * config/rs6000/predicates.md (restore_world_operation): Adjust op
9085         count, remove one USE.
9086
9087 2018-02-07  Michael Meissner  <meissner@linux.vnet.ibm.com>
9088
9089         * doc/install.texi (Configuration): Document the
9090         --with-long-double-format={ibm,ieee} PowerPC configuration
9091         options.
9092
9093         PR target/84154
9094         * config/rs6000/rs6000.md (fix_trunc<SFDF:mode><QHI:mode>2):
9095         Convert from define_expand to be define_insn_and_split.  Rework
9096         float/double/_Float128 conversions to QI/HI/SImode to work with
9097         both ISA 2.07 (power8) or ISA 3.0 (power9).  Fix regression where
9098         conversions to QI/HImode types did a store and then a load to
9099         truncate the value.  For conversions to VSX registers, don't split
9100         the insn, instead emit the code directly.  Use the code iterator
9101         any_fix to combine signed and unsigned conversions.
9102         (fix<uns>_trunc<SFDF:mode>si2_p8): Likewise.
9103         (fixuns_trunc<SFDF:mode><QHI:mode>2): Likewise.
9104         (fix_trunc<IEEE128:mode><QHI:mode>2): Likewise.
9105         (fix<uns>_trunc<SFDF:mode><QHI:mode>2): Likewise.
9106         (fix_<mode>di2_hw): Likewise.
9107         (fixuns_<mode>di2_hw): Likewise.
9108         (fix_<mode>si2_hw): Likewise.
9109         (fixuns_<mode>si2_hw): Likewise.
9110         (fix<uns>_<IEEE128:mode><SDI:mode>2_hw): Likewise.
9111         (fix<uns>_trunc<IEEE128:mode><QHI:mode>2): Likewise.
9112         (fctiw<u>z_<mode>_smallint): Rename fctiw<u>z_<mode>_smallint to
9113         fix<uns>_trunc<SFDF:mode>si2_p8.
9114         (fix_trunc<SFDF:mode><QHI:mode>2_internal): Delete, no longer used.
9115         (fixuns_trunc<SFDF:mode><QHI:mode>2_internal): Likewise.
9116         (fix<uns>_<mode>_mem): Likewise.
9117         (fctiw<u>z_<mode>_mem): Likewise.
9118         (fix<uns>_<mode>_mem): Likewise.
9119         (fix<uns>_trunc<SFDF:mode><QHSI:mode>2_mem): On ISA 3.0, prevent
9120         the register allocator from doing a direct move to the GPRs to do
9121         a store, and instead use the ISA 3.0 store byte/half-word from
9122         vector register instruction.  For IEEE 128-bit floating point,
9123         also optimize stores of 32-bit ints.
9124         (fix<uns>_trunc<IEEE128:mode><QHSI:mode>2_mem): Likewise.
9125
9126 2018-02-07  Alan Hayward  <alan.hayward@arm.com>
9127
9128         * genextract.c (push_pathstr_operand): New function to support
9129         [a-zA-Z].
9130         (walk_rtx): Call push_pathstr_operand.
9131         (print_path): Support [a-zA-Z].
9132
9133 2018-02-07  Richard Biener  <rguenther@suse.de>
9134
9135         PR tree-optimization/84037
9136         * tree-vectorizer.h (struct _loop_vec_info): Add ivexpr_map member.
9137         (cse_and_gimplify_to_preheader): Declare.
9138         (vect_get_place_in_interleaving_chain): Likewise.
9139         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
9140         ivexpr_map.
9141         (_loop_vec_info::~_loop_vec_info): Delete it.
9142         (cse_and_gimplify_to_preheader): New function.
9143         * tree-vect-slp.c (vect_get_place_in_interleaving_chain): Export.
9144         * tree-vect-stmts.c (vectorizable_store): CSE base and steps.
9145         (vectorizable_load): Likewise.  For grouped stores always base
9146         the IV on the first element.
9147         * tree-vect-loop-manip.c (vect_loop_versioning): Unshare versioning
9148         condition before gimplifying.
9149
9150 2018-02-07  Jakub Jelinek  <jakub@redhat.com>
9151
9152         * tree-eh.c (operation_could_trap_helper_p): Ignore honor_trapv for
9153         *DIV_EXPR and *MOD_EXPR.
9154
9155 2018-02-07  H.J. Lu  <hongjiu.lu@intel.com>
9156
9157         PR target/84248
9158         * config/i386/i386.c (ix86_option_override_internal): Mask out
9159         the CF_SET bit when checking -fcf-protection.
9160
9161 2018-02-07  Tom de Vries  <tom@codesourcery.com>
9162
9163         PR libgomp/84217
9164         * omp-expand.c (expand_oacc_collapse_init): Ensure diff_type is large
9165         enough.
9166
9167 2018-02-07  Richard Biener  <rguenther@suse.de>
9168
9169         PR tree-optimization/84204
9170         * tree-chrec.c (chrec_fold_plus_1): Remove size limiting in
9171         this place.
9172
9173         PR tree-optimization/84205
9174         * graphite-isl-ast-to-gimple.c (binary_op_to_tree): Also
9175         special-case isl_ast_op_zdiv_r.
9176
9177         PR tree-optimization/84223
9178         * graphite-scop-detection.c (gather_bbs::before_dom_children):
9179         Only add conditions from within the region.
9180         (gather_bbs::after_dom_children): Adjust.
9181
9182 2018-02-07  Georg-Johann Lay  <avr@gjlay.de>
9183
9184         PR target/84209
9185         * config/avr/avr.h (GENERAL_REGNO_P, GENERAL_REG_P): New macros.
9186         * config/avr/avr.md: Only post-reload split REG-REG moves if
9187         either register is GENERAL_REG_P.
9188
9189 2018-02-07  Jakub Jelinek  <jakub@redhat.com>
9190
9191         PR tree-optimization/84235
9192         * tree-ssa-scopedtables.c
9193         (avail_exprs_stack::simplify_binary_operation): Fir MINUS_EXPR, punt
9194         if the subtraction is performed in floating point type where NaNs are
9195         honored.  For *DIV_EXPR, punt for ALL_FRACT_MODE_Ps where we can't
9196         build 1.  Formatting fix.
9197
9198 2018-02-06  Jakub Jelinek  <jakub@redhat.com>
9199
9200         PR target/84146
9201         * config/i386/i386.c (rest_of_insert_endbranch): Only skip
9202         NOTE_INSN_CALL_ARG_LOCATION after a call, not anything else,
9203         and skip it regardless of bb boundaries.  Use CALL_P macro,
9204         don't test INSN_P (insn) together with CALL_P or JUMP_P check
9205         unnecessarily, formatting fix.
9206
9207 2018-02-06  Michael Collison  <michael.collison@arm.com>
9208
9209         * config/arm/thumb2.md:
9210         (*thumb2_mov_negscc): Split only if TARGET_THUMB2 && !arm_restrict_it.
9211         (*thumb_mov_notscc): Ditto.
9212
9213 2018-02-06  Michael Meissner  <meissner@linux.vnet.ibm.com>
9214
9215         PR target/84154
9216         * config/rs6000/rs6000.md (su code attribute): Use "u" for
9217         unsigned_fix, not "s".
9218
9219 2018-02-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
9220
9221         * configure.ac (gcc_fn_eh_frame_ro): New function.
9222         (gcc_cv_as_cfi_directive): Check both 32 and 64-bit assembler for
9223         correct .eh_frame permissions.
9224         * configure: Regenerate.
9225
9226 2018-02-06  Andrew Jenner  <andrew@codeourcery.com>
9227
9228         * doc/invoke.texi: Add section for the PowerPC SPE backend. Remove
9229         irrelevant options.
9230
9231 2018-02-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
9232
9233         * config/rs6000/rs6000.c (rs6000_option_override_internal):
9234         Display warning message for -mno-speculate-indirect-jumps.
9235
9236 2018-02-06  Andrew Jenner  <andrew@codesourcery.com>
9237
9238         * config/powerpcspe/powerpcspe.opt: (msimple-fpu, mfpu) Add
9239         Undocumented.
9240         * config/powerpcspe/sysv4.opt (mbit-align): Likewise.
9241
9242 2018-02-06  Aldy Hernandez  <aldyh@redhat.com>
9243
9244         PR tree-optimization/84225
9245         * tree-eh.c (find_trapping_overflow): Only call
9246         operation_no_trapping_overflow when ANY_INTEGRAL_TYPE_P.
9247
9248 2018-02-06  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
9249
9250         PR target/84145
9251         * config/i386/i386.c: Reimplement the check of possible options
9252         -mibt/-mshstk conbination. Change error messages.
9253         * doc/invoke.texi: Fix a typo: remove extra '='.
9254
9255 2018-02-06  Marek Polacek  <polacek@redhat.com>
9256
9257         PR tree-optimization/84228
9258         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Skip debug statements.
9259
9260 2018-02-06  Tamar Christina  <tamar.christina@arm.com>
9261
9262         PR target/82641
9263         * config/arm/arm.c (arm_print_asm_arch_directives): Record already
9264         emitted arch directives.
9265         * config/arm/arm-c.c (arm_cpu_builtins): Undefine __ARM_ARCH and
9266         __ARM_FEATURE_COPROC before changing architectures.
9267
9268 2018-02-06  Richard Biener  <rguenther@suse.de>
9269
9270         * config/i386/i386.c (print_reg): Fix typo.
9271         (ix86_loop_unroll_adjust): Do not unroll beyond the original nunroll.
9272
9273 2018-02-06  Eric Botcazou  <ebotcazou@adacore.com>
9274
9275         * configure: Regenerate.
9276
9277 2018-02-05  Martin Sebor  <msebor@redhat.com>
9278
9279         PR tree-optimization/83369
9280         * tree-ssa-ccp.c (pass_post_ipa_warn::execute): Use %G to print
9281         inlining context.
9282
9283 2018-02-05  Martin Liska  <mliska@suse.cz>
9284
9285         * doc/invoke.texi: Cherry-pick upstream r323995.
9286
9287 2018-02-05  Richard Sandiford  <richard.sandiford@linaro.org>
9288
9289         * ira.c (ira_init_register_move_cost): Adjust comment.
9290
9291 2018-02-05  Martin Liska  <mliska@suse.cz>
9292
9293         PR gcov-profile/84137
9294         * doc/gcov.texi: Fix typo in documentation.
9295
9296 2018-02-05  Martin Liska  <mliska@suse.cz>
9297
9298         PR gcov-profile/83879
9299         * doc/gcov.texi: Document necessity of --dynamic-list-data when
9300         using dlopen functionality.
9301
9302 2018-02-05  Olga Makhotina  <olga.makhotina@intel.com>
9303
9304         * config/i386/avx512dqintrin.h (_mm_mask_range_sd, _mm_maskz_range_sd,
9305         _mm_mask_range_round_sd, _mm_maskz_range_round_sd, _mm_mask_range_ss,
9306         _mm_maskz_range_ss, _mm_mask_range_round_ss,
9307         _mm_maskz_range_round_ss): New intrinsics.
9308         (__builtin_ia32_rangesd128_round)
9309         (__builtin_ia32_rangess128_round): Remove.
9310         (__builtin_ia32_rangesd128_mask_round,
9311         __builtin_ia32_rangess128_mask_round): New builtins.
9312         * config/i386/i386-builtin.def (__builtin_ia32_rangesd128_round,
9313         __builtin_ia32_rangess128_round): Remove.
9314         (__builtin_ia32_rangesd128_mask_round,
9315         __builtin_ia32_rangess128_mask_round): New builtins.
9316         * config/i386/sse.md (ranges<mode><round_saeonly_name>): Renamed to ...
9317         (ranges<mode><mask_scalar_name><round_saeonly_scalar_name>): ... this.
9318         ((match_operand:VF_128 2 "<round_saeonly_nimm_predicate>"
9319         "<round_saeonly_constraint>")): Changed to ...
9320         ((match_operand:VF_128 2 "<round_saeonly_scalar_nimm_predicate>"
9321         "<round_saeonly_scalar_constraint>")): ... this.
9322         ("vrange<ssescalarmodesuffix>\t{%3, <round_saeonly_op4>%2, %1, %0|
9323         %0, %1, %2<round_saeonly_op4>, %3}"): Changed to ...
9324         ("vrange<ssescalarmodesuffix>\t{%3, <round_saeonly_scalar_mask_op4>%2,
9325         %1, %0<mask_scalar_operand4>|%0<mask_scalar_operand4>, %1,
9326         %2<round_saeonly_scalar_mask_op4>, %3}"): ... this.
9327
9328 2018-02-02  Andrew Jenner  <andrew@codesourcery.com>
9329
9330         * config/powerpcspe/powerpcspe.opt: Add Undocumented to irrelevant
9331         options.
9332         * config/powerpcspe/powerpcspe-tables.opt (rs6000_cpu_opt_value):
9333         Remove all values except native, 8540 and 8548.
9334
9335 2018-02-02  H.J. Lu  <hongjiu.lu@intel.com>
9336
9337         * config/i386/i386.c (ix86_output_function_return): Pass
9338         INVALID_REGNUM, instead of -1, as invalid register number to
9339         indirect_thunk_name and output_indirect_thunk.
9340
9341 2018-02-02  Julia Koval  <julia.koval@intel.com>
9342
9343         * config.gcc: Add -march=icelake.
9344         * config/i386/driver-i386.c (host_detect_local_cpu): Detect icelake.
9345         * config/i386/i386-c.c (ix86_target_macros_internal): Handle icelake.
9346         * config/i386/i386.c (processor_costs): Add m_ICELAKE.
9347         (PTA_ICELAKE, PTA_AVX512VNNI, PTA_GFNI, PTA_VAES, PTA_AVX512VBMI2,
9348         PTA_VPCLMULQDQ, PTA_RDPID, PTA_AVX512BITALG): New.
9349         (processor_target_table): Add icelake.
9350         (ix86_option_override_internal): Handle new PTAs.
9351         (get_builtin_code_for_version): Handle icelake.
9352         (M_INTEL_COREI7_ICELAKE): New.
9353         (fold_builtin_cpu): Handle icelake.
9354         * config/i386/i386.h (TARGET_ICELAKE, PROCESSOR_ICELAKE): New.
9355         * doc/invoke.texi: Add -march=icelake.
9356
9357 2018-02-02  Julia Koval  <julia.koval@intel.com>
9358
9359         * config/i386/i386.c (ix86_option_override_internal): Change flags type
9360         to wide_int_bitmask.
9361         * wide-int-bitmask.h: New.
9362
9363 2018-02-02  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
9364
9365         PR target/84066
9366         * config/i386/i386.md: Replace Pmode with word_mode in
9367         builtin_setjmp_setup and builtin_longjmp to support x32.
9368
9369 2018-02-01  Peter Bergner  <bergner@vnet.ibm.com>
9370
9371         PR target/56010
9372         PR target/83743
9373         * config/rs6000/driver-rs6000.c: #include "diagnostic.h".
9374         #include "opts.h".
9375         (rs6000_supported_cpu_names): New static variable.
9376         (linux_cpu_translation_table): Likewise.
9377         (elf_platform) <cpu>: Define new static variable and use it.
9378         Translate kernel AT_PLATFORM name to canonical name if needed.
9379         Error if platform name is unknown.
9380
9381 2018-02-01  Aldy Hernandez  <aldyh@redhat.com>
9382
9383         PR target/84089
9384         * config/pa/predicates.md (base14_operand): Handle E_VOIDmode.
9385
9386 2018-02-01  Jeff Law  <law@redhat.com>
9387
9388         PR target/84128
9389         * config/i386/i386.c (release_scratch_register_on_entry): Add new
9390         OFFSET and RELEASE_VIA_POP arguments.  Use SP+OFFSET to restore
9391         the scratch if RELEASE_VIA_POP is false.
9392         (ix86_adjust_stack_and_probe_stack_clash): Un-constify SIZE.
9393         If we have to save a temporary register, decrement SIZE appropriately.
9394         Pass new arguments to release_scratch_register_on_entry.
9395         (ix86_adjust_stack_and_probe): Likewise.
9396         (ix86_emit_probe_stack_range): Pass new arguments to
9397         release_scratch_register_on_entry.
9398
9399 2018-02-01  Uros Bizjak  <ubizjak@gmail.com>
9400
9401         PR rtl-optimization/84157
9402         * combine.c (change_zero_ext): Use REG_P predicate in
9403         front of HARD_REGISTER_P predicate.
9404
9405 2018-02-01  Georg-Johann Lay  <avr@gjlay.de>
9406
9407         * config/avr/avr.c (avr_option_override): Move disabling of
9408         -fdelete-null-pointer-checks to...
9409         * common/config/avr/avr-common.c (avr_option_optimization_table):
9410         ...here.
9411
9412 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
9413
9414         PR tree-optimization/81635
9415         * tree-data-ref.c (split_constant_offset_1): For types that
9416         wrap on overflow, try to use range info to prove that wrapping
9417         cannot occur.
9418
9419 2018-02-01  Renlin Li  <renlin.li@arm.com>
9420
9421         PR target/83370
9422         * config/aarch64/aarch64.c (aarch64_class_max_nregs): Handle
9423         TAILCALL_ADDR_REGS.
9424         (aarch64_register_move_cost): Likewise.
9425         * config/aarch64/aarch64.h (reg_class): Rename CALLER_SAVE_REGS to
9426         TAILCALL_ADDR_REGS.
9427         (REG_CLASS_NAMES): Likewise.
9428         (REG_CLASS_CONTENTS): Rename CALLER_SAVE_REGS to
9429         TAILCALL_ADDR_REGS. Remove IP registers.
9430         * config/aarch64/aarch64.md (Ucs): Update register constraint.
9431
9432 2018-02-01  Richard Biener  <rguenther@suse.de>
9433
9434         * domwalk.h (dom_walker::dom_walker): Add additional constructor
9435         for specifying RPO order and allow NULL for that.
9436         * domwalk.c (dom_walker::dom_walker): Likewise.
9437         (dom_walker::walk): Handle NULL RPO order.
9438         * tree-into-ssa.c (rewrite_dom_walker): Do not walk dom children
9439         in RPO order.
9440         (rewrite_update_dom_walker): Likewise.
9441         (mark_def_dom_walker): Likewise.
9442
9443 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
9444
9445         * config/aarch64/aarch64-protos.h (aarch64_split_sve_subreg_move)
9446         (aarch64_maybe_expand_sve_subreg_move): Declare.
9447         * config/aarch64/aarch64.md (UNSPEC_REV_SUBREG): New unspec.
9448         * config/aarch64/predicates.md (aarch64_any_register_operand): New
9449         predicate.
9450         * config/aarch64/aarch64-sve.md (mov<mode>): Optimize subreg moves
9451         that are semantically a reverse operation.
9452         (*aarch64_sve_mov<mode>_subreg_be): New pattern.
9453         * config/aarch64/aarch64.c (aarch64_maybe_expand_sve_subreg_move):
9454         (aarch64_replace_reg_mode, aarch64_split_sve_subreg_move): New
9455         functions.
9456         (aarch64_can_change_mode_class): For big-endian, forbid changes
9457         between two SVE modes if they have different element sizes.
9458
9459 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
9460
9461         * config/aarch64/aarch64.c (aarch64_expand_sve_const_vector): Prefer
9462         the TImode handling for big-endian targets.
9463
9464 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
9465
9466         * config/aarch64/aarch64-sve.md (sve_ld1rq): Replace with...
9467         (*sve_ld1rq<Vesize>): ... this new pattern.  Handle all element sizes,
9468         not just bytes.
9469         * config/aarch64/aarch64.c (aarch64_expand_sve_widened_duplicate):
9470         Remove BSWAP handing for big-endian targets and use the form of
9471         LD1RQ appropariate for the mode.
9472
9473 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
9474
9475         * config/aarch64/aarch64.c (aarch64_simd_valid_immediate): Handle
9476         all CONST_VECTOR_DUPLICATE_P vectors, not just those with a single
9477         duplicated element.
9478
9479 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
9480
9481         PR tearget/83845
9482         * config/aarch64/aarch64.c (aarch64_secondary_reload): Tighten
9483         check for operands that need to go through aarch64_sve_reload_be.
9484
9485 2018-02-01  Jakub Jelinek  <jakub@redhat.com>
9486
9487         PR tree-optimization/81661
9488         PR tree-optimization/84117
9489         * tree-eh.h (rewrite_to_non_trapping_overflow): Declare.
9490         * tree-eh.c: Include gimplify.h.
9491         (find_trapping_overflow, replace_trapping_overflow,
9492         rewrite_to_non_trapping_overflow): New functions.
9493         * tree-vect-loop.c: Include tree-eh.h.
9494         (vect_get_loop_niters): Use rewrite_to_non_trapping_overflow.
9495         * tree-data-ref.c: Include tree-eh.h.
9496         (get_segment_min_max): Use rewrite_to_non_trapping_overflow.
9497
9498 2018-01-31  Uros Bizjak  <ubizjak@gmail.com>
9499
9500         PR rtl-optimization/84123
9501         * combine.c (change_zero_ext): Check if hard register satisfies
9502         can_change_dest_mode before calling gen_lowpart_SUBREG.
9503
9504 2018-01-31  Vladimir Makarov  <vmakarov@redhat.com>
9505
9506         PR target/82444
9507         * ira.c (ira_init_register_move_cost): Remove assert.
9508
9509 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
9510
9511         PR rtl-optimization/84071
9512         * doc/tm.texi.in (WORD_REGISTER_OPERATIONS): Add explicit case.
9513         * doc/tm.texi: Regenerate.
9514
9515 2018-01-31  Richard Biener  <rguenther@suse.de>
9516
9517         PR tree-optimization/84132
9518         * tree-data-ref.c (analyze_miv_subscript): Properly
9519         check whether evolution_function_is_affine_multivariate_p
9520         before calling gcd_of_steps_may_divide_p.
9521
9522 2018-01-31  Julia Koval  <julia.koval@intel.com>
9523
9524         PR target/83618
9525         * config/i386/i386.c (ix86_expand_builtin): Handle IX86_BUILTIN_RDPID.
9526         * config/i386/i386.md (rdpid_rex64) New.
9527         (rdpid): Make 32bit only.
9528
9529 2018-01-29  Aldy Hernandez  <aldyh@redhat.com>
9530
9531         PR lto/84105
9532         * tree-pretty-print.c (dump_generic_node): Handle a TYPE_NAME with
9533         an IDENTIFIER_NODE for FUNCTION_TYPE's.
9534
9535 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
9536
9537         Revert
9538         2018-01-12  Eric Botcazou  <ebotcazou@adacore.com>
9539
9540         * config/sparc/sparc.md (vxworks_load_got): Set the GOT register.
9541
9542 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
9543
9544         PR rtl-optimization/84071
9545         * combine.c (record_dead_and_set_regs_1): Record the source unmodified
9546         for a paradoxical SUBREG on a WORD_REGISTER_OPERATIONS target.
9547
9548 2018-01-31  Claudiu Zissulescu  <claziss@synopsys.com>
9549
9550         * config/arc/arc.c (arc_handle_aux_attribute): New function.
9551         (arc_attribute_table): Add 'aux' attribute.
9552         (arc_in_small_data_p): Consider aux like variables.
9553         (arc_is_aux_reg_p): New function.
9554         (arc_asm_output_aligned_decl_local): Ignore 'aux' like variables.
9555         (arc_get_aux_arg): New function.
9556         (prepare_move_operands): Handle aux-register access.
9557         (arc_handle_aux_attribute): New function.
9558         * doc/extend.texi (ARC Variable attributes): Add subsection.
9559
9560 2018-01-31  Claudiu Zissulescu  <claziss@synopsys.com>
9561
9562         * config/arc/arc-protos.h (arc_is_uncached_mem_p): Function proto.
9563         * config/arc/arc.c (arc_handle_uncached_attribute): New function.
9564         (arc_attribute_table): Add 'uncached' attribute.
9565         (arc_print_operand): Print '.di' flag for uncached memory
9566         accesses.
9567         (arc_in_small_data_p): Do not consider for small data the uncached
9568         types.
9569         (arc_is_uncached_mem_p): New function.
9570         * config/arc/predicates.md (compact_store_memory_operand): Check
9571         for uncached memory accesses.
9572         (nonvol_nonimm_operand): Likewise.
9573         * gcc/doc/extend.texi (ARC Type Attribute): New subsection.
9574
9575 2018-01-31  Jakub Jelinek  <jakub@redhat.com>
9576
9577         PR c/84100
9578         * common.opt (falign-functions=, falign-jumps=, falign-labels=,
9579         falign-loops=): Add Optimization flag.
9580
9581 2018-01-30  Jeff Law  <law@redhat.com>
9582
9583         PR target/84064
9584         * i386.c (ix86_adjust_stack_and_probe_stack_clash): New argument
9585         INT_REGISTERS_SAVED.  Check it prior to calling
9586         get_scratch_register_on_entry.
9587         (ix86_adjust_stack_and_probe): Similarly.
9588         (ix86_emit_probe_stack_range): Similarly.
9589         (ix86_expand_prologue): Corresponding changes.
9590
9591 2018-01-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
9592
9593         PR target/40411
9594         * config/sol2.h (STARTFILE_ARCH_SPEC): Use -std=c*,
9595         -std=iso9899:199409 instead of -pedantic to select values-Xc.o.
9596
9597 2018-01-30  Vladimir Makarov  <vmakarov@redhat.com>
9598
9599         PR target/84112
9600         * lra-constraints.c (curr_insn_transform): Process AND in the
9601         address.
9602
9603 2018-01-30  Jakub Jelinek  <jakub@redhat.com>
9604
9605         PR rtl-optimization/83986
9606         * sched-deps.c (sched_analyze_insn): For frame related insns, add anti
9607         dependence against last_pending_memory_flush in addition to
9608         pending_jump_insns.
9609
9610 2018-01-30  Alexandre Oliva  <aoliva@redhat.com>
9611
9612         PR tree-optimization/81611
9613         * tree-ssa-dom.c (simple_iv_increment_p): Skip intervening
9614         copies.
9615
9616 2018-01-30  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
9617
9618         PR target/83758
9619         * config/rs6000/rs6000.c (rs6000_internal_arg_pointer): Only return
9620         a reg rtx.
9621
9622 2018-01-30  Richard Biener  <rguenther@suse.de>
9623             Jakub Jelinek  <jakub@redhat.com>
9624
9625         PR tree-optimization/84111
9626         * tree-ssa-loop-ivcanon.c (tree_unroll_loops_completely_1): Skip
9627         inner loops added during recursion, as they don't have up-to-date
9628         SSA form.
9629
9630 2018-01-30  Jan Hubicka  <hubicka@ucw.cz>
9631
9632         PR ipa/81360
9633         * ipa-inline.c (can_inline_edge_p): Break out late tests to...
9634         (can_inline_edge_by_limits_p): ... here.
9635         (can_early_inline_edge_p, check_callers,
9636         update_caller_keys, update_callee_keys, recursive_inlining,
9637         add_new_edges_to_heap, speculation_useful_p,
9638         inline_small_functions,
9639         inline_small_functions, flatten_function,
9640         inline_to_all_callers_1): Update.
9641
9642 2018-01-30  Jan Hubicka  <hubicka@ucw.cz>
9643
9644         * profile-count.c (profile_count::combine_with_ipa_count): Handle
9645         zeros correctly.
9646
9647 2018-01-30  Richard Biener  <rguenther@suse.de>
9648
9649         PR tree-optimization/83008
9650         * tree-vect-slp.c (vect_analyze_slp_cost_1): Properly cost
9651         invariant and constant vector uses in stmts when they need
9652         more than one stmt.
9653
9654 2018-01-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
9655
9656         PR bootstrap/84017
9657         * configure.ac (gcc_cv_as_shf_merge): Disable on Solaris 10/x86.
9658         * configure: Regenerate.
9659
9660 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
9661
9662         * config/aarch64/aarch64-sve.md (*vec_extract<mode><Vel>_0): New
9663         pattern.
9664         (*vec_extract<mode><Vel>_v128): Require a nonzero lane number.
9665         Use gen_rtx_REG rather than gen_lowpart.
9666
9667 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
9668
9669         * lra-constraints.c (match_reload): Use subreg_lowpart_offset
9670         rather than 0 when creating partial subregs.
9671
9672 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
9673
9674         * vec-perm-indices.c (vec_perm_indices::series_p): Give examples
9675         of usage.
9676
9677 2018-01-29  Michael Meissner  <meissner@linux.vnet.ibm.com>
9678
9679         PR target/81550
9680         * config/rs6000/rs6000.c (rs6000_setup_reg_addr_masks): If DFmode
9681         and SFmode can go in Altivec registers (-mcpu=power7 for DFmode,
9682         -mcpu=power8 for SFmode) don't set the PRE_INCDEC or PRE_MODIFY
9683         flags.  This restores the settings used before the 2017-07-24.
9684         Turning off pre increment/decrement/modify allows IVOPTS to
9685         optimize DF/SF loops where the index is an int.
9686
9687 2018-01-29  Richard Biener  <rguenther@suse.de>
9688             Kelvin Nilsen  <kelvin@gcc.gnu.org>
9689
9690         PR bootstrap/80867
9691         * tree-vect-stmts.c (vectorizable_call): Don't call
9692         targetm.vectorize_builtin_md_vectorized_function if callee is
9693         NULL.
9694
9695 2018-01-22  Carl Love  <cel@us.ibm.com>
9696
9697         * doc/extend.tex: Fix typo in second arg in
9698         __builtin_bcdadd_{lt|eq|gt|ov} and __builtin_bcdsub_{lt|eq|gt|ov}.
9699
9700 2018-01-29  Richard Biener  <rguenther@suse.de>
9701
9702         PR tree-optimization/84086
9703         * tree-ssanames.c: Include cfgloop.h and tree-scalar-evolution.h.
9704         (flush_ssaname_freelist): When SSA names were released reset
9705         the SCEV hash table.
9706
9707 2018-01-29  Richard Biener  <rguenther@suse.de>
9708
9709         PR tree-optimization/84057
9710         * tree-ssa-loop-ivcanon.c (unloop_loops): Deal with already
9711         removed paths when removing edges.
9712
9713 2018-01-27  H.J. Lu  <hongjiu.lu@intel.com>
9714
9715         * doc/invoke.texi: Replace -mfunction-return==@var{choice} with
9716         -mfunction-return=@var{choice}.
9717
9718 2018-01-27  Bernd Edlinger  <bernd.edlinger@hotmail.de>
9719
9720         PR diagnostic/84034
9721         * diagnostic-show-locus.c (get_line_width_without_trailing_whitespace):
9722         Handle CR like TAB.
9723         (layout::print_source_line): Likewise.
9724         (test_get_line_width_without_trailing_whitespace): Add test cases.
9725
9726 2018-01-27  Jakub Jelinek  <jakub@redhat.com>
9727
9728         PR middle-end/84040
9729         * sched-deps.c (sched_macro_fuse_insns): Return immediately for
9730         debug insns.
9731
9732 2018-01-26  Jim Wilson  <jimw@sifive.com>
9733
9734         * config/riscv/riscv.h (MAX_FIXED_MODE_SIZE): New.
9735
9736         * config/riscv/elf.h (LIB_SPEC): Don't include -lgloss when nosys.specs
9737         specified.
9738
9739 2018-01-26  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
9740
9741         * config/aarch64/aarch64.md: Add peepholes for CMP + SUB -> SUBS
9742         and CMP + SUB-immediate -> SUBS.
9743
9744 2018-01-26  Martin Sebor  <msebor@redhat.com>
9745
9746         PR tree-optimization/83896
9747         * tree-ssa-strlen.c (get_string_len): Rename...
9748         (get_string_cst_length): ...to this.  Return HOST_WIDE_INT.
9749         Avoid assuming length is constant.
9750         (handle_char_store): Use HOST_WIDE_INT for string length.
9751
9752 2018-01-26  Uros Bizjak  <ubizjak@gmail.com>
9753
9754         PR target/81763
9755         * config/i386/i386.md (*andndi3_doubleword): Add earlyclobber
9756         to (=&r,r,rm) alternative. Add (=r,0,rm) and (=r,r,0) alternatives.
9757
9758 2018-01-26  Richard Biener  <rguenther@suse.de>
9759
9760         PR rtl-optimization/84003
9761         * dse.c (record_store): Only record redundant stores when
9762         the earlier store aliases at least all accesses the later one does.
9763
9764 2018-01-26  Jakub Jelinek  <jakub@redhat.com>
9765
9766         PR rtl-optimization/83985
9767         * dce.c (deletable_insn_p): Return false for separate shrink wrapping
9768         REG_CFA_RESTORE insns.
9769         (delete_unmarked_insns): Don't ignore separate shrink wrapping
9770         REG_CFA_RESTORE insns here.
9771
9772         PR c/83989
9773         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Don't
9774         use SSA_NAME_VAR as base for SSA_NAMEs with non-NULL SSA_NAME_VAR.
9775
9776 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
9777
9778         * config/arc/arc-arch.h (arc_tune_attr): Add ARC_TUNE_CORE_3.
9779         * config/arc/arc.c (arc_sched_issue_rate): Use ARC_TUNE_... .
9780         (arc_init): Likewise.
9781         (arc_override_options): Likewise.
9782         (arc_file_start): Choose Tag_ARC_CPU_variation based on arc_tune
9783         value.
9784         (hwloop_fail): Use TARGET_DBNZ when we want to check for dbnz insn
9785         support.
9786         * config/arc/arc.h (TARGET_DBNZ): Define.
9787         * config/arc/arc.md (attr tune): Add core_3, use ARC_TUNE_... to
9788         properly set the tune attribute.
9789         (dbnz): Use TARGET_DBNZ guard.
9790         * config/arc/arc.opt (mtune): Add core3 option.
9791
9792 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
9793
9794         * config/arc/arc.c (arc_delegitimize_address_0): Refactored to
9795         recognize new pic like addresses.
9796         (arc_delegitimize_address): Clean up.
9797
9798 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
9799
9800         * config/arc/arc-arches.def: Option mrf16 valid for all
9801         architectures.
9802         * config/arc/arc-c.def (__ARC_RF16__): New predefined macro.
9803         * config/arc/arc-cpus.def (em_mini): New cpu with rf16 on.
9804         * config/arc/arc-options.def (FL_RF16): Add mrf16 option.
9805         * config/arc/arc-tables.opt: Regenerate.
9806         * config/arc/arc.c (arc_conditional_register_usage): Handle
9807         reduced register file case.
9808         (arc_file_start): Set must have build attributes.
9809         * config/arc/arc.h (MAX_ARC_PARM_REGS): Conditional define using
9810         mrf16 option value.
9811         * config/arc/arc.opt (mrf16): Add new option.
9812         * config/arc/elf.h (ATTRIBUTE_PCS): Define.
9813         * config/arc/genmultilib.awk: Handle new mrf16 option.
9814         * config/arc/linux.h (ATTRIBUTE_PCS): Define.
9815         * config/arc/t-multilib: Regenerate.
9816         * doc/invoke.texi (ARC Options): Document mrf16 option.
9817
9818 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
9819
9820         * config/arc/arc-protos.h: Add arc_is_secure_call_p proto.
9821         * config/arc/arc.c (arc_handle_secure_attribute): New function.
9822         (arc_attribute_table): Add 'secure_call' attribute.
9823         (arc_print_operand): Print secure call operand.
9824         (arc_function_ok_for_sibcall): Don't optimize tail calls when
9825         secure.
9826         (arc_is_secure_call_p): New function.  * config/arc/arc.md
9827         (call_i): Add support for sjli instruction.
9828         (call_value_i): Likewise.
9829         * config/arc/constraints.md (Csc): New constraint.
9830
9831 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
9832             John Eric Martin  <John.Martin@emmicro-us.com>
9833
9834         * config/arc/arc-protos.h: Add arc_is_jli_call_p proto.
9835         * config/arc/arc.c (_arc_jli_section): New struct.
9836         (arc_jli_section): New type.
9837         (rc_jli_sections): New static variable.
9838         (arc_handle_jli_attribute): New function.
9839         (arc_attribute_table): Add jli_always and jli_fixed attribute.
9840         (arc_file_end): New function.
9841         (TARGET_ASM_FILE_END): Define.
9842         (arc_print_operand): Reuse 'S' letter for JLI output instruction.
9843         (arc_add_jli_section): New function.
9844         (jli_call_scan): Likewise.
9845         (arc_reorg): Call jli_call_scan.
9846         (arc_output_addsi): Remove 'S' from printing asm operand.
9847         (arc_is_jli_call_p): New function.
9848         * config/arc/arc.md (movqi_insn): Remove 'S' from printing asm
9849         operand.
9850         (movhi_insn): Likewise.
9851         (movsi_insn): Likewise.
9852         (movsi_set_cc_insn): Likewise.
9853         (loadqi_update): Likewise.
9854         (load_zeroextendqisi_update): Likewise.
9855         (load_signextendqisi_update): Likewise.
9856         (loadhi_update): Likewise.
9857         (load_zeroextendhisi_update): Likewise.
9858         (load_signextendhisi_update): Likewise.
9859         (loadsi_update): Likewise.
9860         (loadsf_update): Likewise.
9861         (movsicc_insn): Likewise.
9862         (bset_insn): Likewise.
9863         (bxor_insn): Likewise.
9864         (bclr_insn): Likewise.
9865         (bmsk_insn): Likewise.
9866         (bicsi3_insn): Likewise.
9867         (cmpsi_cc_c_insn): Likewise.
9868         (movsi_ne): Likewise.
9869         (movsi_cond_exec): Likewise.
9870         (clrsbsi2): Likewise.
9871         (norm_f): Likewise.
9872         (normw): Likewise.
9873         (swap): Likewise.
9874         (divaw): Likewise.
9875         (flag): Likewise.
9876         (sr): Likewise.
9877         (kflag): Likewise.
9878         (ffs): Likewise.
9879         (ffs_f): Likewise.
9880         (fls): Likewise.
9881         (call_i): Remove 'S' asm letter, add jli instruction.
9882         (call_value_i): Likewise.
9883         * config/arc/arc.op (mjli-always): New option.
9884         * config/arc/constraints.md (Cji): New constraint.
9885         * config/arc/fpx.md (addsf3_fpx): Remove 'S' from printing asm
9886         operand.
9887         (subsf3_fpx): Likewise.
9888         (mulsf3_fpx): Likewise.
9889         * config/arc/simdext.md (vendrec_insn): Remove 'S' from printing
9890         asm operand.
9891         * doc/extend.texi (ARC): Document 'jli-always' and 'jli-fixed'
9892         function attrbutes.
9893         * doc/invoke.texi (ARC): Document mjli-always option.
9894
9895 2018-01-26  Sebastian Perta  <sebastian.perta@renesas.com>
9896
9897         * config/rl78/rl78.c (rl78_addsi3_internal): If operand 2 is const
9898         avoid addition with 0 and use incw and decw where possible.
9899
9900 2018-01-26  Richard Biener  <rguenther@suse.de>
9901
9902         PR tree-optimization/81082
9903         * fold-const.c (fold_plusminus_mult_expr): Do not perform the
9904         association if it requires casting to unsigned.
9905         * match.pd ((A * C) +- (B * C) -> (A+-B)): New patterns derived
9906         from fold_plusminus_mult_expr to catch important cases late when
9907         range info is available.
9908
9909 2018-01-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
9910
9911         * config/i386/sol2.h (USE_HIDDEN_LINKONCE): Remove.
9912         * configure.ac (hidden_linkonce): New test.
9913         * configure: Regenerate.
9914         * config.in: Regenerate.
9915
9916 2018-01-26  Julia Koval  <julia.koval@intel.com>
9917
9918         * config/i386/avx512bitalgintrin.h (_mm512_bitshuffle_epi64_mask,
9919         _mm512_mask_bitshuffle_epi64_mask, _mm256_bitshuffle_epi64_mask,
9920         _mm256_mask_bitshuffle_epi64_mask, _mm_bitshuffle_epi64_mask,
9921         _mm_mask_bitshuffle_epi64_mask): Fix type.
9922         * config/i386/i386-builtin-types.def (UHI_FTYPE_V2DI_V2DI_UHI,
9923         USI_FTYPE_V4DI_V4DI_USI): Remove.
9924         * config/i386/i386-builtin.def (__builtin_ia32_vpshufbitqmb512_mask,
9925         __builtin_ia32_vpshufbitqmb256_mask,
9926         __builtin_ia32_vpshufbitqmb128_mask): Fix types.
9927         * config/i386/i386.c (ix86_expand_args_builtin): Remove old types.
9928         * config/i386/sse.md (VI1_AVX512VLBW): Change types.
9929
9930 2018-01-26  Alan Modra  <amodra@gmail.com>
9931
9932         PR target/84033
9933         * config/rs6000/rs6000-p8swap.c (rtx_is_swappable_p): Exclude
9934         UNSPEC_VBPERMQ.  Sort other unspecs.
9935
9936 2018-01-25  David Edelsohn  <dje.gcc@gmail.com>
9937
9938         * doc/invoke.texi (PowerPC Options): Document 'native' cpu type.
9939
9940 2018-01-25  Jan Hubicka  <hubicka@ucw.cz>
9941
9942         PR middle-end/83055
9943         * predict.c (drop_profile): Do not push/pop cfun; update also
9944         node->count.
9945         (handle_missing_profiles): Fix logic looking for zero profiles.
9946
9947 2018-01-25  Jakub Jelinek  <jakub@redhat.com>
9948
9949         PR middle-end/83977
9950         * ipa-fnsummary.c (compute_fn_summary): Clear can_change_signature
9951         on functions with #pragma omp declare simd or functions with simd
9952         attribute.
9953         * omp-simd-clone.c (expand_simd_clones): Revert 2018-01-24 change.
9954         * config/i386/i386.c (ix86_simd_clone_compute_vecsize_and_simdlen):
9955         Remove trailing \n from warning_at calls.
9956
9957 2018-01-25  Tom de Vries  <tom@codesourcery.com>
9958
9959         PR target/84028
9960         * config/nvptx/nvptx.c (nvptx_single): Add exit insn after noreturn call
9961         for neutered workers.
9962
9963 2018-01-24  Joseph Myers  <joseph@codesourcery.com>
9964
9965         PR target/68467
9966         * config/m68k/m68k.c (m68k_promote_function_mode): New function.
9967         (TARGET_PROMOTE_FUNCTION_MODE): New macro.
9968
9969 2018-01-24  Jeff Law  <law@redhat.com>
9970
9971         PR target/83994
9972         * i386.c (get_probe_interval): Move to earlier point.
9973         (ix86_compute_frame_layout): If -fstack-clash-protection and
9974         the frame is larger than the probe interval, then use pushes
9975         to save registers rather than reg->mem moves.
9976         (ix86_expand_prologue): Remove conditional for int_registers_saved
9977         assertion.
9978
9979 2018-01-24  Vladimir Makarov  <vmakarov@redhat.com>
9980
9981         PR target/84014
9982         * ira-build.c (setup_min_max_allocno_live_range_point): Set up
9983         min/max for never referenced object.
9984
9985 2018-01-24  Jakub Jelinek  <jakub@redhat.com>
9986
9987         PR middle-end/83977
9988         * tree.c (free_lang_data_in_decl): Don't clear DECL_ABSTRACT_ORIGIN
9989         here.
9990         * omp-low.c (create_omp_child_function): Remove "omp declare simd"
9991         attributes from DECL_ATTRIBUTES (decl) without affecting
9992         DECL_ATTRIBUTES (current_function_decl).
9993         * omp-simd-clone.c (expand_simd_clones): Ignore DECL_ARTIFICIAL
9994         functions with non-NULL DECL_ABSTRACT_ORIGIN.
9995
9996 2018-01-24  Richard Sandiford  <richard.sandiford@linaro.org>
9997
9998         PR tree-optimization/83979
9999         * fold-const.c (fold_comparison): Use constant_boolean_node
10000         instead of boolean_{true,false}_node.
10001
10002 2018-01-24  Jan Hubicka  <hubicka@ucw.cz>
10003
10004         * ipa-profile.c (ipa_propagate_frequency_1): Fix logic skipping calls
10005         with zero counts.
10006
10007 2018-01-24  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
10008
10009         * config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
10010         Simplify the clause that sets the length attribute.
10011         (*call_value_indirect_nonlocal_sysv<mode>): Likewise.
10012         (*sibcall_nonlocal_sysv<mode>): Clean up code block; simplify the
10013         clause that sets the length attribute.
10014         (*sibcall_value_nonlocal_sysv<mode>): Likewise.
10015
10016 2018-01-24  Tom de Vries  <tom@codesourcery.com>
10017
10018         PR target/83589
10019         * config/nvptx/nvptx.c (WORKAROUND_PTXJIT_BUG_2): Define to 1.
10020         (nvptx_pc_set, nvptx_condjump_label): New function. Copy from jump.c.
10021         Add strict parameter.
10022         (prevent_branch_around_nothing): Insert dummy insn between branch to
10023         label and label with no ptx insn inbetween.
10024         * config/nvptx/nvptx.md (define_insn "fake_nop"): New insn.
10025
10026 2018-01-24  Tom de Vries  <tom@codesourcery.com>
10027
10028         PR target/81352
10029         * config/nvptx/nvptx.c (nvptx_single): Add exit insn after noreturn call
10030         for neutered threads in warp.
10031         * config/nvptx/nvptx.md (define_insn "exit"): New insn.
10032
10033 2018-01-24  Richard Biener  <rguenther@suse.de>
10034
10035         PR tree-optimization/83176
10036         * tree-chrec.c (chrec_fold_plus_1): Handle (signed T){(T) .. }
10037         operands.
10038
10039 2018-01-24  Richard Biener  <rguenther@suse.de>
10040
10041         PR tree-optimization/82819
10042         * graphite-isl-ast-to-gimple.c (binary_op_to_tree): Avoid
10043         code generating pluses that are no-ops in the target precision.
10044
10045 2018-01-24  Richard Biener  <rguenther@suse.de>
10046
10047         PR middle-end/84000
10048         * tree-cfg.c (replace_loop_annotate): Handle annot_expr_parallel_kind.
10049
10050 2018-01-23  Jan Hubicka  <hubicka@ucw.cz>
10051
10052         * cfgcleanup.c (try_crossjump_to_edge): Use combine_with_count
10053         to merge probabilities.
10054         * predict.c (probably_never_executed): Also mark as cold functions
10055         with global 0 profile and guessed local profile.
10056         * profile-count.c (profile_probability::combine_with_count): New
10057         member function.
10058         * profile-count.h (profile_probability::operator*,
10059         profile_probability::operator*=, profile_probability::operator/,
10060         profile_probability::operator/=): Reduce precision to adjusted
10061         and set value to guessed on contradictory divisions.
10062         (profile_probability::combine_with_freq): Remove.
10063         (profile_probability::combine_wiht_count): Declare.
10064         (profile_count::force_nonzero):: Set to adjusted.
10065         (profile_count::probability_in):: Set quality to adjusted.
10066         * tree-ssa-tail-merge.c (replace_block_by): Use
10067         combine_with_count.
10068
10069 2018-01-23  Andrew Waterman  <andrew@sifive.com>
10070             Jim Wilson  <jimw@sifive.com>
10071
10072         * config/riscv/riscv.c (riscv_stack_boundary): New.
10073         (riscv_option_override): Set riscv_stack_boundary.  Handle
10074         riscv_preferred_stack_boundary_arg.
10075         * config/riscv/riscv.h (MIN_STACK_BOUNDARY, ABI_STACK_BOUNDARY): New.
10076         (BIGGEST_ALIGNMENT): Set to STACK_BOUNDARY.
10077         (STACK_BOUNDARY): Set to riscv_stack_boundary.
10078         (RISCV_STACK_ALIGN): Use STACK_BOUNDARY.
10079         * config/riscv/riscv.opt (mpreferred-stack-boundary): New.
10080         * doc/invoke.tex (RISC-V Options): Add -mpreferred-stack-boundary.
10081
10082 2018-01-23  H.J. Lu  <hongjiu.lu@intel.com>
10083
10084         PR target/83905
10085         * config/i386/i386.c (ix86_expand_prologue): Use cost reference
10086         of struct ix86_frame.
10087         (ix86_expand_epilogue): Likewise.  Add a local variable for
10088         the reg_save_offset field in struct ix86_frame.
10089
10090 2018-01-23  Bin Cheng  <bin.cheng@arm.com>
10091
10092         PR tree-optimization/82604
10093         * tree-loop-distribution.c (enum partition_kind): New enum item
10094         PKIND_PARTIAL_MEMSET.
10095         (partition_builtin_p): Support above new enum item.
10096         (generate_code_for_partition): Ditto.
10097         (compute_access_range): Differentiate cases that equality can be
10098         proven at all loops, the innermost loops or no loops.
10099         (classify_builtin_st, classify_builtin_ldst): Adjust call to above
10100         function.  Set PKIND_PARTIAL_MEMSET for partition appropriately.
10101         (finalize_partitions, distribute_loop): Don't fuse partition of
10102         PKIND_PARTIAL_MEMSET kind when distributing 3-level loop nest.
10103         (prepare_perfect_loop_nest): Distribute 3-level loop nest only if
10104         parloop is enabled.
10105
10106 2018-01-23  Martin Liska  <mliska@suse.cz>
10107
10108         * predict.def (PRED_INDIR_CALL): Set probability to PROB_EVEN in
10109         order to ignore the predictor.
10110         (PRED_POLYMORPHIC_CALL): Likewise.
10111         (PRED_RECURSIVE_CALL): Likewise.
10112
10113 2018-01-23  Martin Liska  <mliska@suse.cz>
10114
10115         * tree-profile.c (tree_profiling): Print function header to
10116         aware reader which function we are working on.
10117         * value-prof.c (gimple_find_values_to_profile): Do not print
10118         not interesting value histograms.
10119
10120 2018-01-23  Martin Liska  <mliska@suse.cz>
10121
10122         * profile-count.h (enum profile_quality): Add
10123         profile_uninitialized as the first value. Do not number values
10124         as they are zero based.
10125         (profile_count::verify): Update sanity check.
10126         (profile_probability::verify): Likewise.
10127
10128 2018-01-23  Nathan Sidwell  <nathan@acm.org>
10129
10130         * doc/invoke.texi (ffor-scope): Deprecate.
10131
10132 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
10133
10134         PR tree-optimization/83510
10135         * domwalk.c (set_all_edges_as_executable): New function.
10136         (dom_walker::dom_walker): Convert bool param
10137         "skip_unreachable_blocks" to enum reachability.  Move setup of
10138         edge flags to set_all_edges_as_executable and only do it when
10139         reachability is REACHABLE_BLOCKS.
10140         * domwalk.h (enum dom_walker::reachability): New enum.
10141         (dom_walker::dom_walker): Convert bool param
10142         "skip_unreachable_blocks" to enum reachability.
10143         (set_all_edges_as_executable): New decl.
10144         * graphite-scop-detection.c  (gather_bbs::gather_bbs): Convert
10145         from false for "skip_unreachable_blocks" to ALL_BLOCKS for
10146         "reachability".
10147         * tree-ssa-dom.c (dom_opt_dom_walker::dom_opt_dom_walker): Likewise,
10148         but converting true to REACHABLE_BLOCKS.
10149         * tree-ssa-sccvn.c (sccvn_dom_walker::sccvn_dom_walker): Likewise.
10150         * tree-vrp.c
10151         (check_array_bounds_dom_walker::check_array_bounds_dom_walker):
10152         Likewise, but converting it to REACHABLE_BLOCKS_PRESERVING_FLAGS.
10153         (vrp_dom_walker::vrp_dom_walker): Likewise, but converting it to
10154         REACHABLE_BLOCKS.
10155         (vrp_prop::vrp_finalize): Call set_all_edges_as_executable
10156         if check_all_array_refs will be called.
10157
10158 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
10159
10160         * tree.c (selftest::test_location_wrappers): Add more test
10161         coverage.
10162
10163 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
10164
10165         * sbitmap.c (selftest::test_set_range): Fix memory leaks.
10166         (selftest::test_bit_in_range): Likewise.
10167
10168 2018-01-23  Richard Sandiford  <richard.sandiford@linaro.org>
10169
10170         PR testsuite/83888
10171         * doc/sourcebuild.texi (vect_float): Say that the selector
10172         only describes the situation when -funsafe-math-optimizations is on.
10173         (vect_float_strict): Document.
10174
10175 2018-01-23  Richard Sandiford  <richard.sandiford@linaro.org>
10176
10177         PR tree-optimization/83965
10178         * tree-vect-patterns.c (vect_reassociating_reduction_p): New function.
10179         (vect_recog_dot_prod_pattern, vect_recog_sad_pattern): Use it
10180         instead of checking only for a reduction.
10181         (vect_recog_widen_sum_pattern): Likewise.
10182
10183 2018-01-23  Jan Hubicka  <hubicka@ucw.cz>
10184
10185         * predict.c (probably_never_executed): Only use precise profile info.
10186         (compute_function_frequency): Skip after inlining hack since we now
10187         have quality checking.
10188
10189 2018-01-23  Jan Hubicka  <hubicka@ucw.cz>
10190
10191         * profile-count.h (profile_probability::very_unlikely,
10192         profile_probability::unlikely, profile_probability::even): Set
10193         precision to guessed.
10194
10195 2018-01-23  Richard Biener  <rguenther@suse.de>
10196
10197         PR tree-optimization/83963
10198         * graphite-scop-detection.c (scop_detection::harmful_loop_in_region):
10199         Properly terminate dominator walk when crossing the exit edge not
10200         when visiting its source block.
10201
10202 2018-01-23  Jakub Jelinek  <jakub@redhat.com>
10203
10204         PR c++/83918
10205         * tree.c (maybe_wrap_with_location): Use NON_LVALUE_EXPR rather than
10206         VIEW_CONVERT_EXPR to wrap CONST_DECLs.
10207
10208 2018-01-22  Jakub Jelinek  <jakub@redhat.com>
10209
10210         PR tree-optimization/83957
10211         * omp-expand.c (expand_omp_for_generic): Ignore virtual PHIs.  Remove
10212         semicolon after for body surrounded by braces.
10213
10214         PR tree-optimization/83081
10215         * profile-count.h (profile_probability::split): New method.
10216         * dojump.c (do_jump_1) <case TRUTH_ANDIF_EXPR, case TRUTH_ORIF_EXPR>:
10217         Use profile_probability::split.
10218         (do_compare_rtx_and_jump): Fix adjustment of probabilities
10219         when splitting a single conditional jump into 2.
10220
10221 2018-01-22  David Malcolm  <dmalcolm@redhat.com>
10222
10223         PR tree-optimization/69452
10224         * tree-ssa-loop-im.c (class move_computations_dom_walker): Remove
10225         decl.
10226
10227 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
10228
10229         * config/rl78/rl78-expand.md (bswaphi2): New define_expand.
10230         * config/rl78/rl78-virt.md (*bswaphi2_virt): New define_insn.
10231         * config/rl78/rl78-real.md (*bswaphi2_real): New define_insn.
10232
10233 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
10234
10235         * config/rl78/rl78-protos.h (rl78_split_movdi): New function
10236         declaration.
10237         * config/rl78/rl78.md (movdi): New define_expand.
10238         * config/rl78/rl78.c (rl78_split_movdi): New function.
10239
10240 2018-01-22  Michael Meissner  <meissner@linux.vnet.ibm.com>
10241
10242         PR target/83862
10243         * config/rs6000/rs6000-protos.h (rs6000_split_signbit): Delete,
10244         no longer used.
10245         * config/rs6000/rs6000.c (rs6000_split_signbit): Likewise.
10246         * config/rs6000/rs6000.md (signbit<mode>2): Change code for IEEE
10247         128-bit to produce an UNSPEC move to get the double word with the
10248         signbit and then a shift directly to do signbit.
10249         (signbit<mode>2_dm): Replace old IEEE 128-bit signbit
10250         implementation with a new version that just does either a direct
10251         move or a regular move.  Move memory interface to separate insns.
10252         Move insns so they are next to the expander.
10253         (signbit<mode>2_dm_mem_be): New combiner insns to combine load
10254         with signbit move.  Split big and little endian case.
10255         (signbit<mode>2_dm_mem_le): Likewise.
10256         (signbit<mode>2_dm_<su>ext): Delete, no longer used.
10257         (signbit<mode>2_dm2): Likewise.
10258
10259 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
10260
10261         * config/rl78/rl78.md (anddi3): New define_expand.
10262
10263 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
10264
10265         * config/rl78/rl78.md (umindi3): New define_expand.
10266
10267 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
10268
10269         * config/rl78/rl78.md (smindi3): New define_expand.
10270
10271 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
10272
10273         * config/rl78/rl78.md (smaxdi3): New define_expand.
10274
10275 2018-01-22  Carl Love  <cel@us.ibm.com>
10276
10277         * config/rs6000/rs6000-builtin.def (ST_ELEMREV_V1TI, LD_ELEMREV_V1TI,
10278         LVX_V1TI): Add macro expansion.
10279         * config/rs6000/rs6000-c.c (altivec_builtin_types): Add argument
10280         definitions for VSX_BUILTIN_VEC_XST_BE, VSX_BUILTIN_VEC_ST,
10281         VSX_BUILTIN_VEC_XL, LD_ELEMREV_V1TI builtins.
10282         * config/rs6000/rs6000-p8swap.c (insn_is_swappable_p);
10283         Change check to determine if the instruction is a byte reversing
10284         entry.  Fix typo in comment.
10285         * config/rs6000/rs6000.c (altivec_expand_builtin): Add case entry
10286         for VSX_BUILTIN_ST_ELEMREV_V1TI and VSX_BUILTIN_LD_ELEMREV_V1TI.
10287         Add def_builtin calls for new builtins.
10288         * config/rs6000/vsx.md (vsx_st_elemrev_v1ti, vsx_ld_elemrev_v1ti):
10289         Add define_insn expansion.
10290
10291 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
10292
10293         * config/rl78/rl78.md (umaxdi3): New define_expand.
10294
10295 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
10296
10297         * config/rl78/rl78.c (rl78_note_reg_set): Fixed dead reg check
10298         for non-QImode registers.
10299
10300 2018-01-22  Richard Biener  <rguenther@suse.de>
10301
10302         PR tree-optimization/83963
10303         * graphite-scop-detection.c (scop_detection::get_sese): Delay
10304         including the loop exit block.
10305         (scop_detection::merge_sese): Likewise.
10306         (scop_detection::add_scop): Do it here instead.
10307
10308 2018-01-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
10309
10310         * doc/sourcebuild.texi (arm_softfloat): Document.
10311
10312 2018-01-21  John David Anglin  <danglin@gcc.gnu.org>
10313
10314         PR gcc/77734
10315         * config/pa/pa.c (pa_function_ok_for_sibcall): Use
10316         targetm.binds_local_p instead of TREE_PUBLIC to check local binding.
10317         Move TARGET_PORTABLE_RUNTIME check after TARGET_64BIT check.
10318
10319 2018-01-21  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
10320             David Edelsohn  <dje.gcc@gmail.com>
10321
10322         PR target/83946
10323         * config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
10324         Change "crset eq" to "crset 2".
10325         (*call_value_indirect_nonlocal_sysv<mode>): Likewise.
10326         (*call_indirect_aix<mode>_nospec): Likewise.
10327         (*call_value_indirect_aix<mode>_nospec): Likewise.
10328         (*call_indirect_elfv2<mode>_nospec): Likewise.
10329         (*call_value_indirect_elfv2<mode>_nospec): Likewise.
10330         (*sibcall_nonlocal_sysv<mode>): Change "crset eq" to "crset 2";
10331         change assembly output from . to $.
10332         (*sibcall_value_nonlocal_sysv<mode>): Likewise.
10333         (indirect_jump<mode>_nospec): Change assembly output from . to $.
10334         (*tablejump<mode>_internal1_nospec): Likewise.
10335
10336 2018-01-21  Oleg Endo  <olegendo@gcc.gnu.org>
10337
10338         PR target/80870
10339         * config/sh/sh_optimize_sett_clrt.cc:
10340         Use INCLUDE_ALGORITHM and INCLUDE_VECTOR instead of direct includes.
10341
10342 2018-01-20  Richard Sandiford  <richard.sandiford@linaro.org>
10343
10344         PR tree-optimization/83940
10345         * tree-vect-stmts.c (vect_truncate_gather_scatter_offset): Set
10346         offset_dt to vect_constant_def rather than vect_unknown_def_type.
10347         (vect_check_load_store_mask): Add a mask_dt_out parameter and
10348         use it to pass back the definition type.
10349         (vect_check_store_rhs): Likewise rhs_dt_out.
10350         (vect_build_gather_load_calls): Add a mask_dt argument and use
10351         it instead of a call to vect_is_simple_use.
10352         (vectorizable_store): Update calls to vect_check_load_store_mask
10353         and vect_check_store_rhs.  Use the dt returned by the latter instead
10354         of scatter_src_dt.  Use the cached mask_dt and gs_info.offset_dt
10355         instead of calls to vect_is_simple_use.  Pass the scalar rather
10356         than the vector operand to vect_is_simple_use when handling
10357         second and subsequent copies of an rhs value.
10358         (vectorizable_load): Update calls to vect_check_load_store_mask
10359         and vect_build_gather_load_calls.  Use the cached mask_dt and
10360         gs_info.offset_dt instead of calls to vect_is_simple_use.
10361
10362 2018-01-20  Jakub Jelinek  <jakub@redhat.com>
10363
10364         PR middle-end/83945
10365         * tree-emutls.c: Include gimplify.h.
10366         (lower_emutls_2): New function.
10367         (lower_emutls_1): If ADDR_EXPR is a gimple invariant and walk_tree
10368         with lower_emutls_2 callback finds some TLS decl in it, unshare_expr
10369         it before further processing.
10370
10371         PR target/83930
10372         * simplify-rtx.c (simplify_binary_operation_1) <case UMOD>: Use
10373         UINTVAL (trueop1) instead of INTVAL (op1).
10374
10375 2018-01-19  Jakub Jelinek  <jakub@redhat.com>
10376
10377         PR debug/81570
10378         PR debug/83728
10379         * dwarf2cfi.c (DEFAULT_INCOMING_FRAME_SP_OFFSET): Define to
10380         INCOMING_FRAME_SP_OFFSET if not defined.
10381         (scan_trace): Add ENTRY argument.  If true and
10382         DEFAULT_INCOMING_FRAME_SP_OFFSET != INCOMING_FRAME_SP_OFFSET,
10383         emit a note to adjust the CFA offset.
10384         (create_cfi_notes): Adjust scan_trace callers.
10385         (create_cie_data): Use DEFAULT_INCOMING_FRAME_SP_OFFSET rather than
10386         INCOMING_FRAME_SP_OFFSET in the CIE.
10387         * config/i386/i386.h (DEFAULT_INCOMING_FRAME_SP_OFFSET): Define.
10388         * config/stormy16/stormy16.h (DEFAULT_INCOMING_FRAME_SP_OFFSET):
10389         Likewise.
10390         * doc/tm.texi.in (DEFAULT_INCOMING_FRAME_SP_OFFSET): Document.
10391         * doc/tm.texi: Regenerated.
10392
10393 2018-01-19  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
10394
10395         PR rtl-optimization/83147
10396         * lra-constraints.c (remove_inheritance_pseudos): Use
10397         lra_substitute_pseudo_within_insn.
10398
10399 2018-01-19  Tom de Vries  <tom@codesourcery.com>
10400             Cesar Philippidis  <cesar@codesourcery.com>
10401
10402         PR target/83920
10403         * config/nvptx/nvptx.c (nvptx_single): Fix jit workaround.
10404
10405 2018-01-19  Cesar Philippidis  <cesar@codesourcery.com>
10406
10407         PR target/83790
10408         * config/nvptx/nvptx.c (output_init_frag): Don't use generic address
10409         spaces for function labels.
10410
10411 2018-01-19  Martin Liska  <mliska@suse.cz>
10412
10413         * predict.def (PRED_LOOP_EXIT): Change from 85 to 89.
10414         (PRED_LOOP_EXIT_WITH_RECURSION): Change from 72 to 78.
10415         (PRED_LOOP_EXTRA_EXIT): Change from 83 to 67.
10416         (PRED_OPCODE_POSITIVE): Change from 64 to 59.
10417         (PRED_TREE_OPCODE_POSITIVE): Change from 64 to 59.
10418         (PRED_CONST_RETURN): Change from 69 to 65.
10419         (PRED_NULL_RETURN): Change from 91 to 71.
10420         (PRED_LOOP_IV_COMPARE_GUESS): Change from 98 to 64.
10421         (PRED_LOOP_GUARD): Change from 66 to 73.
10422
10423 2018-01-19  Martin Liska  <mliska@suse.cz>
10424
10425         * predict.c (predict_insn_def): Add new assert.
10426         (struct branch_predictor): Change type to signed integer.
10427         (test_prediction_value_range): Amend test to cover
10428         PROB_UNINITIALIZED.
10429         * predict.def (PRED_LOOP_ITERATIONS): Use the new constant.
10430         (PRED_LOOP_ITERATIONS_GUESSED): Likewise.
10431         (PRED_LOOP_ITERATIONS_MAX): Likewise.
10432         (PRED_LOOP_IV_COMPARE): Likewise.
10433         * predict.h (PROB_UNINITIALIZED): Define new constant.
10434
10435 2018-01-19  Martin Liska  <mliska@suse.cz>
10436
10437         * predict.c (dump_prediction): Add new format for
10438         analyze_brprob.py script which is enabled with -details
10439         suboption.
10440         * profile-count.h (precise_p): New function.
10441
10442 2018-01-19  Richard Sandiford  <richard.sandiford@linaro.org>
10443
10444         PR tree-optimization/83922
10445         * tree-vect-loop.c (vect_verify_full_masking): Return false if
10446         there are no statements that need masking.
10447         (vect_active_double_reduction_p): New function.
10448         (vect_analyze_loop_operations): Use it when handling phis that
10449         are not in the loop header.
10450
10451 2018-01-19  Richard Sandiford  <richard.sandiford@linaro.org>
10452
10453         PR tree-optimization/83914
10454         * tree-vect-loop.c (vectorizable_induction): Don't convert
10455         init_expr or apply the peeling adjustment for inductions
10456         that are nested within the vectorized loop.
10457
10458 2018-01-19  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
10459
10460         * config/arm/thumb2.md (*thumb2_negsi2_short): Use RSB mnemonic
10461         instead of NEG.
10462
10463 2018-01-18  Jakub Jelinek  <jakub@redhat.com>
10464
10465         PR sanitizer/81715
10466         PR testsuite/83882
10467         * function.h (gimplify_parameters): Add gimple_seq * argument.
10468         * function.c: Include gimple.h and options.h.
10469         (gimplify_parameters): Add cleanup argument, add CLOBBER stmts
10470         for the added local temporaries if needed.
10471         * gimplify.c (gimplify_body): Adjust gimplify_parameters caller,
10472         if there are any parameter cleanups, wrap whole body into a
10473         try/finally with the cleanups.
10474
10475 2018-01-18  Wilco Dijkstra  <wdijkstr@arm.com>
10476
10477         PR target/82964
10478         * config/aarch64/aarch64.c (aarch64_legitimate_constant_p):
10479         Use GET_MODE_CLASS for scalar floating point.
10480
10481 2018-01-18  Jan Hubicka  <hubicka@ucw.cz>
10482
10483         PR ipa/82256
10484         patch by PaX Team
10485         * cgraphclones.c (cgraph_node::create_version_clone_with_body):
10486         Fix call of call_cgraph_insertion_hooks.
10487
10488 2018-01-18  Martin Sebor  <msebor@redhat.com>
10489
10490         * doc/invoke.texi (-Wclass-memaccess): Tweak text.
10491
10492 2018-01-18  Jan Hubicka  <hubicka@ucw.cz>
10493
10494         PR ipa/83619
10495         * cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Update edge
10496         frequencies.
10497
10498 2018-01-18  Boris Kolpackov  <boris@codesynthesis.com>
10499
10500         PR other/70268
10501         * common.opt: (-ffile-prefix-map): New option.
10502         * opts.c (common_handle_option): Defer it.
10503         * opts-global.c (handle_common_deferred_options): Handle it.
10504         * debug.h (remap_debug_filename, add_debug_prefix_map): Move to...
10505         * file-prefix-map.h: New file.
10506         (remap_debug_filename, add_debug_prefix_map): ...here.
10507         (add_macro_prefix_map, add_file_prefix_map, remap_macro_filename): New.
10508         * final.c (debug_prefix_map, add_debug_prefix_map
10509         remap_debug_filename): Move to...
10510         * file-prefix-map.c: New file.
10511         (file_prefix_map, add_prefix_map, remap_filename) ...here and rename,
10512         generalize, get rid of alloca(), use strrchr() instead of strchr().
10513         (add_macro_prefix_map, add_debug_prefix_map, add_file_prefix_map):
10514         Implement in terms of add_prefix_map().
10515         (remap_macro_filename, remap_debug_filename): Implement in term of
10516         remap_filename().
10517         * Makefile.in (OBJS, PLUGIN_HEADERS): Add new files.
10518         * builtins.c (fold_builtin_FILE): Call remap_macro_filename().
10519         * dbxout.c: Include file-prefix-map.h.
10520         * varasm.c: Likewise.
10521         * vmsdbgout.c: Likewise.
10522         * xcoffout.c: Likewise.
10523         * dwarf2out.c: Likewise plus omit new options from DW_AT_producer.
10524         * doc/cppopts.texi (-fmacro-prefix-map): Document.
10525         * doc/invoke.texi (-ffile-prefix-map): Document.
10526         (-fdebug-prefix-map): Update description.
10527
10528 2018-01-18  Martin Liska  <mliska@suse.cz>
10529
10530         * config/i386/i386.c (indirect_thunk_name): Document that also
10531         lfence is emitted.
10532         (output_indirect_thunk): Document why both instructions
10533         (pause and lfence) are generated.
10534
10535 2018-01-18  Richard Biener  <rguenther@suse.de>
10536
10537         PR tree-optimization/83887
10538         * graphite-scop-detection.c
10539         (scop_detection::get_nearest_dom_with_single_entry): Remove.
10540         (scop_detection::get_nearest_pdom_with_single_exit): Likewise.
10541         (scop_detection::merge_sese): Re-implement with a flood-fill
10542         algorithm that properly finds a SESE region if it exists.
10543
10544 2018-01-18  Jakub Jelinek  <jakub@redhat.com>
10545
10546         PR c/61240
10547         * match.pd ((P + A) - P, P - (P + A), (P + A) - (P + B)): For
10548         pointer_diff optimizations use view_convert instead of convert.
10549
10550 2018-01-17  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
10551
10552         * config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
10553         Generate different code for -mno-speculate-indirect-jumps.
10554         (*call_value_indirect_nonlocal_sysv<mode>): Likewise.
10555         (*call_indirect_aix<mode>): Disable for
10556         -mno-speculate-indirect-jumps.
10557         (*call_indirect_aix<mode>_nospec): New define_insn.
10558         (*call_value_indirect_aix<mode>): Disable for
10559         -mno-speculate-indirect-jumps.
10560         (*call_value_indirect_aix<mode>_nospec): New define_insn.
10561         (*sibcall_nonlocal_sysv<mode>): Generate different code for
10562         -mno-speculate-indirect-jumps.
10563         (*sibcall_value_nonlocal_sysv<mode>): Likewise.
10564
10565 2018-01-17  Michael Meissner  <meissner@linux.vnet.ibm.com>
10566
10567         * config/rs6000/rs6000.c (rs6000_emit_move): If we load or store a
10568         long double type, set the flags for noting the default long double
10569         type, even if we don't pass or return a long double type.
10570
10571 2018-01-17  Jan Hubicka  <hubicka@ucw.cz>
10572
10573         PR ipa/83051
10574         * ipa-inline.c (flatten_function): Do not overwrite final inlining
10575         failure.
10576
10577 2018-01-17  Will Schmidt  <will_schmidt@vnet.ibm.com>
10578
10579         * config/rs6000/rs6000.c (rs6000_gimple_builtin): Add gimple folding
10580         support for merge[hl].
10581         (fold_mergehl_helper): New helper function.
10582         (tree-vector-builder.h): New #include for tree_vector_builder usage.
10583         * config/rs6000/altivec.md (altivec_vmrghw_direct): Add xxmrghw insn.
10584         (altivec_vmrglw_direct): Add xxmrglw insn.
10585
10586 2018-01-17  Andrew Waterman  <andrew@sifive.com>
10587
10588         * config/riscv/riscv.c (riscv_conditional_register_usage): If
10589         UNITS_PER_FP_ARG is 0, set call_used_regs to 1 for all FP regs.
10590
10591 2018-01-17  David Malcolm  <dmalcolm@redhat.com>
10592
10593         PR lto/83121
10594         * ipa-devirt.c (add_type_duplicate): When comparing memory layout,
10595         call the lto_location_cache before reading the
10596         DECL_SOURCE_LOCATION of the types.
10597
10598 2018-01-17  Wilco Dijkstra  <wdijkstr@arm.com>
10599             Richard Sandiford  <richard.sandiford@linaro.org>
10600
10601         * config/aarch64/aarch64.md (movti_aarch64): Use Uti constraint.
10602         * config/aarch64/aarch64.c (aarch64_mov128_immediate): New function.
10603         (aarch64_legitimate_constant_p): Just support CONST_DOUBLE
10604         SF/DF/TF mode to avoid creating illegal CONST_WIDE_INT immediates.
10605         * config/aarch64/aarch64-protos.h (aarch64_mov128_immediate):
10606         Add declaration.
10607         * config/aarch64/constraints.md (aarch64_movti_operand):
10608         Limit immediates.
10609         * config/aarch64/predicates.md (Uti): Add new constraint.
10610
10611 2018-01-17 Carl Love  <cel@us.ibm.com>
10612
10613         * config/rs6000/vsx.md (define_expand xl_len_r,
10614         define_expand stxvl, define_expand *stxvl): Add match_dup argument.
10615         (define_insn): Add, match_dup 1 argument to define_insn stxvll and
10616         lxvll.
10617         (define_expand, define_insn): Move the shift left from  the
10618         define_insn to the define_expand for lxvl and stxvl instructions.
10619         * config/rs6000/rs6000-builtin.def (BU_P9V_64BIT_VSX_2): Change LXVL
10620         and XL_LEN_R definitions to PURE.
10621
10622 2018-01-17  Uros Bizjak  <ubizjak@gmail.com>
10623
10624         * config/i386/i386.c (indirect_thunk_name): Declare regno
10625         as unsigned int.  Compare regno with INVALID_REGNUM.
10626         (output_indirect_thunk): Ditto.
10627         (output_indirect_thunk_function): Ditto.
10628         (ix86_code_end): Declare regno as unsigned int.  Use INVALID_REGNUM
10629         in the call to output_indirect_thunk_function.
10630
10631 2018-01-17  Richard Sandiford  <richard.sandiford@linaro.org>
10632
10633         PR middle-end/83884
10634         * expr.c (expand_expr_real_1): Use the size of GET_MODE (op0)
10635         rather than the size of inner_type to determine the stack slot size
10636         when handling VIEW_CONVERT_EXPRs on strict-alignment targets.
10637
10638 2018-01-16  Sebastian Peryt  <sebastian.peryt@intel.com>
10639
10640         PR target/83546
10641         * config/i386/i386.c (ix86_option_override_internal): Add PTA_RDRND
10642         to PTA_SILVERMONT.
10643
10644 2018-01-16  Michael Meissner  <meissner@linux.vnet.ibm.com>
10645
10646         * config.gcc (powerpc*-linux*-*): Add support for 64-bit little
10647         endian Linux systems to optionally enable multilibs for selecting
10648         the long double type if the user configured an explicit type.
10649         * config/rs6000/rs6000.h (TARGET_IEEEQUAD_MULTILIB): Indicate we
10650         have no long double multilibs if not defined.
10651         * config/rs6000/rs6000.c (rs6000_option_override_internal): Do not
10652         warn if the user used -mabi={ieee,ibm}longdouble and we built
10653         multilibs for long double.
10654         * config/rs6000/linux64.h (MULTILIB_DEFAULTS_IEEE): Define as the
10655         appropriate multilib option.
10656         (MULTILIB_DEFAULTS): Add MULTILIB_DEFAULTS_IEEE to the default
10657         multilib options.
10658         * config/rs6000/t-ldouble-linux64le-ibm: New configuration files
10659         for building long double multilibs.
10660         * config/rs6000/t-ldouble-linux64le-ieee: Likewise.
10661
10662 2018-01-16  John David Anglin  <danglin@gcc.gnu.org>
10663
10664         * config.gcc (hppa*-*-linux*): Change callee copies ABI to caller
10665         copies.
10666
10667         * config/pa.h (MALLOC_ABI_ALIGNMENT): Set 32-bit alignment default to
10668         64 bits.
10669         * config/pa/pa32-linux.h (MALLOC_ABI_ALIGNMENT): Set alignment to
10670         128 bits.
10671
10672         * config/pa/som.h (ASM_DECLARE_FUNCTION_NAME): Cleanup type and mode
10673         variables.
10674
10675         * config/pa/pa.c (pa_function_arg_size): Apply CEIL to GET_MODE_SIZE
10676         return value.
10677
10678 2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>
10679
10680         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): For an
10681         ADDR_EXPR, do not count the offset of a COMPONENT_REF twice.
10682
10683 2018-01-16  Kelvin Nilsen  <kelvin@gcc.gnu.org>
10684
10685         * config/rs6000/rs6000-p8swap.c (rs6000_gen_stvx): Generate
10686         different rtl trees depending on TARGET_64BIT.
10687         (rs6000_gen_lvx): Likewise.
10688
10689 2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>
10690
10691         * config/visium/visium.md (nop): Tweak comment.
10692         (hazard_nop): Likewise.
10693
10694 2018-01-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
10695
10696         * config/rs6000/rs6000.c (rs6000_opt_vars): Add entry for
10697         -mspeculate-indirect-jumps.
10698         * config/rs6000/rs6000.md (*call_indirect_elfv2<mode>): Disable
10699         for -mno-speculate-indirect-jumps.
10700         (*call_indirect_elfv2<mode>_nospec): New define_insn.
10701         (*call_value_indirect_elfv2<mode>): Disable for
10702         -mno-speculate-indirect-jumps.
10703         (*call_value_indirect_elfv2<mode>_nospec): New define_insn.
10704         (indirect_jump): Emit different RTL for
10705         -mno-speculate-indirect-jumps.
10706         (*indirect_jump<mode>): Disable for
10707         -mno-speculate-indirect-jumps.
10708         (*indirect_jump<mode>_nospec): New define_insn.
10709         (tablejump): Emit different RTL for
10710         -mno-speculate-indirect-jumps.
10711         (tablejumpsi): Disable for -mno-speculate-indirect-jumps.
10712         (tablejumpsi_nospec): New define_expand.
10713         (tablejumpdi): Disable for -mno-speculate-indirect-jumps.
10714         (tablejumpdi_nospec): New define_expand.
10715         (*tablejump<mode>_internal1): Disable for
10716         -mno-speculate-indirect-jumps.
10717         (*tablejump<mode>_internal1_nospec): New define_insn.
10718         * config/rs6000/rs6000.opt (mspeculate-indirect-jumps): New
10719         option.
10720
10721 2018-01-16  Artyom Skrobov tyomitch@gmail.com
10722
10723         * caller-save.c (insert_save): Drop unnecessary parameter.  All
10724         callers updated.
10725
10726 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
10727             Richard Biener  <rguenth@suse.de>
10728
10729         PR libgomp/83590
10730         * gimplify.c (gimplify_one_sizepos): For is_gimple_constant (expr)
10731         return early, inline manually is_gimple_sizepos.  Make sure if we
10732         call gimplify_expr we don't end up with a gimple constant.
10733         * tree.c (variably_modified_type_p): Don't return true for
10734         is_gimple_constant (_t).  Inline manually is_gimple_sizepos.
10735         * gimplify.h (is_gimple_sizepos): Remove.
10736
10737 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
10738
10739         PR tree-optimization/83857
10740         * tree-vect-loop.c (vect_analyze_loop_operations): Don't call
10741         vectorizable_live_operation for pure SLP statements.
10742         (vectorizable_live_operation): Handle PHIs.
10743
10744 2018-01-16  Richard Biener  <rguenther@suse.de>
10745
10746         PR tree-optimization/83867
10747         * tree-vect-stmts.c (vect_transform_stmt): Precompute
10748         nested_in_vect_loop_p since the scalar stmt may get invalidated.
10749
10750 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
10751
10752         PR c/83844
10753         * stor-layout.c (handle_warn_if_not_align): Use byte_position and
10754         multiple_of_p instead of unchecked tree_to_uhwi and UHWI check.
10755         If off is not INTEGER_CST, issue a may not be aligned warning
10756         rather than isn't aligned.  Use isn%'t rather than isn't.
10757         * fold-const.c (multiple_of_p) <case BIT_AND_EXPR>: Don't fall through
10758         into MULT_EXPR.
10759         <case MULT_EXPR>: Improve the case when bottom and one of the
10760         MULT_EXPR operands are INTEGER_CSTs and bottom is multiple of that
10761         operand, in that case check if the other operand is multiple of
10762         bottom divided by the INTEGER_CST operand.
10763
10764 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
10765
10766         PR target/83858
10767         * config/pa/pa.h (FUNCTION_ARG_SIZE): Delete.
10768         * config/pa/pa-protos.h (pa_function_arg_size): Declare.
10769         * config/pa/som.h (ASM_DECLARE_FUNCTION_NAME): Use
10770         pa_function_arg_size instead of FUNCTION_ARG_SIZE.
10771         * config/pa/pa.c (pa_function_arg_advance): Likewise.
10772         (pa_function_arg, pa_arg_partial_bytes): Likewise.
10773         (pa_function_arg_size): New function.
10774
10775 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
10776
10777         * fold-const.c (fold_ternary_loc): Construct the vec_perm_indices
10778         in a separate statement.
10779
10780 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
10781
10782         PR tree-optimization/83847
10783         * tree-vect-data-refs.c (vect_analyze_data_ref_accesses): Don't
10784         group gathers and scatters.
10785
10786 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
10787
10788         PR rtl-optimization/86620
10789         * params.def (max-sched-ready-insns): Bump minimum value to 1.
10790
10791         PR rtl-optimization/83213
10792         * recog.c (peep2_attempt): Copy over CROSSING_JUMP_P from peepinsn
10793         to last if both are JUMP_INSNs.
10794
10795         PR tree-optimization/83843
10796         * gimple-ssa-store-merging.c
10797         (imm_store_chain_info::output_merged_store): Handle bit_not_p on
10798         store_immediate_info for bswap/nop orig_stores.
10799
10800 2018-01-15  Andrew Waterman  <andrew@sifive.com>
10801
10802         * config/riscv/riscv.c (riscv_rtx_costs) <MULT>: Increase cost if
10803         !TARGET_MUL.
10804         <UDIV>: Increase cost if !TARGET_DIV.
10805
10806 2018-01-15  Segher Boessenkool  <segher@kernel.crashing.org>
10807
10808         * config/rs6000/rs6000.md (define_attr "type"): Remove delayed_cr.
10809         (define_attr "cr_logical_3op"): New.
10810         (cceq_ior_compare): Adjust.
10811         (cceq_ior_compare_complement): Adjust.
10812         (*cceq_rev_compare): Adjust.
10813         * config/rs6000/rs6000.c (rs6000_adjust_cost): Adjust.
10814         (is_cracked_insn): Adjust.
10815         (insn_must_be_first_in_group): Adjust.
10816         * config/rs6000/40x.md: Adjust.
10817         * config/rs6000/440.md: Adjust.
10818         * config/rs6000/476.md: Adjust.
10819         * config/rs6000/601.md: Adjust.
10820         * config/rs6000/603.md: Adjust.
10821         * config/rs6000/6xx.md: Adjust.
10822         * config/rs6000/7450.md: Adjust.
10823         * config/rs6000/7xx.md: Adjust.
10824         * config/rs6000/8540.md: Adjust.
10825         * config/rs6000/cell.md: Adjust.
10826         * config/rs6000/e300c2c3.md: Adjust.
10827         * config/rs6000/e500mc.md: Adjust.
10828         * config/rs6000/e500mc64.md: Adjust.
10829         * config/rs6000/e5500.md: Adjust.
10830         * config/rs6000/e6500.md: Adjust.
10831         * config/rs6000/mpc.md: Adjust.
10832         * config/rs6000/power4.md: Adjust.
10833         * config/rs6000/power5.md: Adjust.
10834         * config/rs6000/power6.md: Adjust.
10835         * config/rs6000/power7.md: Adjust.
10836         * config/rs6000/power8.md: Adjust.
10837         * config/rs6000/power9.md: Adjust.
10838         * config/rs6000/rs64.md: Adjust.
10839         * config/rs6000/titan.md: Adjust.
10840
10841 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
10842
10843         * config/i386/predicates.md (indirect_branch_operand): Rewrite
10844         ix86_indirect_branch_register logic.
10845
10846 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
10847
10848         * config/i386/constraints.md (Bs): Update
10849         ix86_indirect_branch_register check.  Don't check
10850         ix86_indirect_branch_register with GOT_memory_operand.
10851         (Bw): Likewise.
10852         * config/i386/predicates.md (GOT_memory_operand): Don't check
10853         ix86_indirect_branch_register here.
10854         (GOT32_symbol_operand): Likewise.
10855
10856 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
10857
10858         * config/i386/predicates.md (constant_call_address_operand):
10859         Rewrite ix86_indirect_branch_register logic.
10860         (sibcall_insn_operand): Likewise.
10861
10862 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
10863
10864         * config/i386/constraints.md (Bs): Replace
10865         ix86_indirect_branch_thunk_register with
10866         ix86_indirect_branch_register.
10867         (Bw): Likewise.
10868         * config/i386/i386.md (indirect_jump): Likewise.
10869         (tablejump): Likewise.
10870         (*sibcall_memory): Likewise.
10871         (*sibcall_value_memory): Likewise.
10872         Peepholes of indirect call and jump via memory: Likewise.
10873         * config/i386/i386.opt: Likewise.
10874         * config/i386/predicates.md (indirect_branch_operand): Likewise.
10875         (GOT_memory_operand): Likewise.
10876         (call_insn_operand): Likewise.
10877         (sibcall_insn_operand): Likewise.
10878         (GOT32_symbol_operand): Likewise.
10879
10880 2018-01-15  Jakub Jelinek  <jakub@redhat.com>
10881
10882         PR middle-end/83837
10883         * omp-expand.c (expand_omp_atomic_pipeline): Use loaded_val
10884         type rather than type addr's type points to.
10885         (expand_omp_atomic_mutex): Likewise.
10886         (expand_omp_atomic): Likewise.
10887
10888 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
10889
10890         PR target/83839
10891         * config/i386/i386.c (output_indirect_thunk_function): Use
10892         ASM_OUTPUT_LABEL, instead of ASM_OUTPUT_DEF, for TARGET_MACHO
10893         for  __x86_return_thunk.
10894
10895 2018-01-15  Richard Biener  <rguenther@suse.de>
10896
10897         PR middle-end/83850
10898         * expmed.c (extract_bit_field_1): Fix typo.
10899
10900 2018-01-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
10901
10902         PR target/83687
10903         * config/arm/iterators.md (VF): New mode iterator.
10904         * config/arm/neon.md (neon_vabd<mode>_2): Use the above.
10905         Remove integer-related logic from pattern.
10906         (neon_vabd<mode>_3): Likewise.
10907
10908 2018-01-15  Jakub Jelinek  <jakub@redhat.com>
10909
10910         PR middle-end/82694
10911         * common.opt (fstrict-overflow): No longer an alias.
10912         (fwrapv-pointer): New option.
10913         * tree.h (TYPE_OVERFLOW_WRAPS, TYPE_OVERFLOW_UNDEFINED): Define
10914         also for pointer types based on flag_wrapv_pointer.
10915         * opts.c (common_handle_option) <case OPT_fstrict_overflow>: Set
10916         opts->x_flag_wrap[pv] to !value, clear opts->x_flag_trapv if
10917         opts->x_flag_wrapv got set.
10918         * fold-const.c (fold_comparison, fold_binary_loc): Revert 2017-08-01
10919         changes, just use TYPE_OVERFLOW_UNDEFINED on pointer type instead of
10920         POINTER_TYPE_OVERFLOW_UNDEFINED.
10921         * match.pd: Likewise in address comparison pattern.
10922         * doc/invoke.texi: Document -fwrapv and -fstrict-overflow.
10923
10924 2018-01-15  Richard Biener  <rguenther@suse.de>
10925
10926         PR lto/83804
10927         * tree.c (free_lang_data_in_type): Always unlink TYPE_DECLs
10928         from TYPE_FIELDS.  Free TYPE_BINFO if not used by devirtualization.
10929         Reset type names to their identifier if their TYPE_DECL doesn't
10930         have linkage (and thus is used for ODR and devirt).
10931         (save_debug_info_for_decl): Remove.
10932         (save_debug_info_for_type): Likewise.
10933         (add_tree_to_fld_list): Adjust.
10934         * tree-pretty-print.c (dump_generic_node): Make dumping of
10935         type names more robust.
10936
10937 2018-01-15  Richard Biener  <rguenther@suse.de>
10938
10939         * BASE-VER: Bump to 8.0.1.
10940
10941 2018-01-14  Martin Sebor  <msebor@redhat.com>
10942
10943         PR other/83508
10944         * builtins.c (check_access): Avoid warning when the no-warning bit
10945         is set.
10946
10947 2018-01-14  Cory Fields  <cory-nospam-@coryfields.com>
10948
10949         * tree-ssa-loop-im.c (sort_bbs_in_loop_postorder_cmp): Stabilize sort.
10950         * ira-color (allocno_hard_regs_compare): Likewise.
10951
10952 2018-01-14  Nathan Rossi  <nathan@nathanrossi.com>
10953
10954         PR target/83013
10955         * config/microblaze/microblaze.c (microblaze_asm_output_ident):
10956         Use .pushsection/.popsection.
10957
10958 2018-01-14  Martin Sebor  <msebor@redhat.com>
10959
10960         PR c++/81327
10961         * doc/invoke.texi (-Wlass-memaccess): Document suppression by casting.
10962
10963 2018-01-14  Jakub Jelinek  <jakub@redhat.com>
10964
10965         * config.gcc (i[34567]86-*-*): Remove one duplicate gfniintrin.h
10966         entry from extra_headers.
10967         (x86_64-*-*): Remove two duplicate gfniintrin.h entries from
10968         extra_headers, make the list bitwise identical to the i?86-*-* one.
10969
10970 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
10971
10972         * config/i386/i386.c (ix86_set_indirect_branch_type): Disallow
10973         -mcmodel=large with -mindirect-branch=thunk,
10974         -mindirect-branch=thunk-extern, -mfunction-return=thunk and
10975         -mfunction-return=thunk-extern.
10976         * doc/invoke.texi: Document -mcmodel=large is incompatible with
10977         -mindirect-branch=thunk, -mindirect-branch=thunk-extern,
10978         -mfunction-return=thunk and -mfunction-return=thunk-extern.
10979
10980 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
10981
10982         * config/i386/i386.c (print_reg): Print the name of the full
10983         integer register without '%'.
10984         (ix86_print_operand): Handle 'V'.
10985         * doc/extend.texi: Document 'V' modifier.
10986
10987 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
10988
10989         * config/i386/constraints.md (Bs): Disallow memory operand for
10990         -mindirect-branch-register.
10991         (Bw): Likewise.
10992         * config/i386/predicates.md (indirect_branch_operand): Likewise.
10993         (GOT_memory_operand): Likewise.
10994         (call_insn_operand): Likewise.
10995         (sibcall_insn_operand): Likewise.
10996         (GOT32_symbol_operand): Likewise.
10997         * config/i386/i386.md (indirect_jump): Call convert_memory_address
10998         for -mindirect-branch-register.
10999         (tablejump): Likewise.
11000         (*sibcall_memory): Likewise.
11001         (*sibcall_value_memory): Likewise.
11002         Disallow peepholes of indirect call and jump via memory for
11003         -mindirect-branch-register.
11004         (*call_pop): Replace m with Bw.
11005         (*call_value_pop): Likewise.
11006         (*sibcall_pop_memory): Replace m with Bs.
11007         * config/i386/i386.opt (mindirect-branch-register): New option.
11008         * doc/invoke.texi: Document -mindirect-branch-register option.
11009
11010 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
11011
11012         * config/i386/i386-protos.h (ix86_output_function_return): New.
11013         * config/i386/i386.c (ix86_set_indirect_branch_type): Also
11014         set function_return_type.
11015         (indirect_thunk_name): Add ret_p to indicate thunk for function
11016         return.
11017         (output_indirect_thunk_function): Pass false to
11018         indirect_thunk_name.
11019         (ix86_output_indirect_branch_via_reg): Likewise.
11020         (ix86_output_indirect_branch_via_push): Likewise.
11021         (output_indirect_thunk_function): Create alias for function
11022         return thunk if regno < 0.
11023         (ix86_output_function_return): New function.
11024         (ix86_handle_fndecl_attribute): Handle function_return.
11025         (ix86_attribute_table): Add function_return.
11026         * config/i386/i386.h (machine_function): Add
11027         function_return_type.
11028         * config/i386/i386.md (simple_return_internal): Use
11029         ix86_output_function_return.
11030         (simple_return_internal_long): Likewise.
11031         * config/i386/i386.opt (mfunction-return=): New option.
11032         (indirect_branch): Mention -mfunction-return=.
11033         * doc/extend.texi: Document function_return function attribute.
11034         * doc/invoke.texi: Document -mfunction-return= option.
11035
11036 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
11037
11038         * config/i386/i386-opts.h (indirect_branch): New.
11039         * config/i386/i386-protos.h (ix86_output_indirect_jmp): Likewise.
11040         * config/i386/i386.c (ix86_using_red_zone): Disallow red-zone
11041         with local indirect jump when converting indirect call and jump.
11042         (ix86_set_indirect_branch_type): New.
11043         (ix86_set_current_function): Call ix86_set_indirect_branch_type.
11044         (indirectlabelno): New.
11045         (indirect_thunk_needed): Likewise.
11046         (indirect_thunk_bnd_needed): Likewise.
11047         (indirect_thunks_used): Likewise.
11048         (indirect_thunks_bnd_used): Likewise.
11049         (INDIRECT_LABEL): Likewise.
11050         (indirect_thunk_name): Likewise.
11051         (output_indirect_thunk): Likewise.
11052         (output_indirect_thunk_function): Likewise.
11053         (ix86_output_indirect_branch_via_reg): Likewise.
11054         (ix86_output_indirect_branch_via_push): Likewise.
11055         (ix86_output_indirect_branch): Likewise.
11056         (ix86_output_indirect_jmp): Likewise.
11057         (ix86_code_end): Call output_indirect_thunk_function if needed.
11058         (ix86_output_call_insn): Call ix86_output_indirect_branch if
11059         needed.
11060         (ix86_handle_fndecl_attribute): Handle indirect_branch.
11061         (ix86_attribute_table): Add indirect_branch.
11062         * config/i386/i386.h (machine_function): Add indirect_branch_type
11063         and has_local_indirect_jump.
11064         * config/i386/i386.md (indirect_jump): Set has_local_indirect_jump
11065         to true.
11066         (tablejump): Likewise.
11067         (*indirect_jump): Use ix86_output_indirect_jmp.
11068         (*tablejump_1): Likewise.
11069         (simple_return_indirect_internal): Likewise.
11070         * config/i386/i386.opt (mindirect-branch=): New option.
11071         (indirect_branch): New.
11072         (keep): Likewise.
11073         (thunk): Likewise.
11074         (thunk-inline): Likewise.
11075         (thunk-extern): Likewise.
11076         * doc/extend.texi: Document indirect_branch function attribute.
11077         * doc/invoke.texi: Document -mindirect-branch= option.
11078
11079 2018-01-14  Jan Hubicka  <hubicka@ucw.cz>
11080
11081         PR ipa/83051
11082         * ipa-inline.c (edge_badness): Tolerate roundoff errors.
11083
11084 2018-01-14  Richard Sandiford  <richard.sandiford@linaro.org>
11085
11086         * ipa-inline.c (want_inline_small_function_p): Return false if
11087         inlining has already failed with CIF_FINAL_ERROR.
11088         (update_caller_keys): Call want_inline_small_function_p before
11089         can_inline_edge_p.
11090         (update_callee_keys): Likewise.
11091
11092 2018-01-10  Kelvin Nilsen  <kelvin@gcc.gnu.org>
11093
11094         * config/rs6000/rs6000-p8swap.c (rs6000_sum_of_two_registers_p):
11095         New function.
11096         (rs6000_quadword_masked_address_p): Likewise.
11097         (quad_aligned_load_p): Likewise.
11098         (quad_aligned_store_p): Likewise.
11099         (const_load_sequence_p): Add comment to describe the outer-most loop.
11100         (mimic_memory_attributes_and_flags): New function.
11101         (rs6000_gen_stvx): Likewise.
11102         (replace_swapped_aligned_store): Likewise.
11103         (rs6000_gen_lvx): Likewise.
11104         (replace_swapped_aligned_load): Likewise.
11105         (replace_swapped_load_constant): Capitalize argument name in
11106         comment describing this function.
11107         (rs6000_analyze_swaps): Add a third pass to search for vector loads
11108         and stores that access quad-word aligned addresses and replace
11109         with stvx or lvx instructions when appropriate.
11110         * config/rs6000/rs6000-protos.h (rs6000_sum_of_two_registers_p):
11111         New function prototype.
11112         (rs6000_quadword_masked_address_p): Likewise.
11113         (rs6000_gen_lvx): Likewise.
11114         (rs6000_gen_stvx): Likewise.
11115         * config/rs6000/vsx.md (*vsx_le_perm_load_<mode>): For modes
11116         VSX_D (V2DF, V2DI), modify this split to select lvx instruction
11117         when memory address is aligned.
11118         (*vsx_le_perm_load_<mode>): For modes VSX_W (V4SF, V4SI), modify
11119         this split to select lvx instruction when memory address is aligned.
11120         (*vsx_le_perm_load_v8hi): Modify this split to select lvx
11121         instruction when memory address is aligned.
11122         (*vsx_le_perm_load_v16qi): Likewise.
11123         (four unnamed splitters): Modify to select the stvx instruction
11124         when memory is aligned.
11125
11126 2018-01-13  Jan Hubicka  <hubicka@ucw.cz>
11127
11128         * predict.c (determine_unlikely_bbs): Handle correctly BBs
11129         which appears in the queue multiple times.
11130
11131 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11132             Alan Hayward  <alan.hayward@arm.com>
11133             David Sherwood  <david.sherwood@arm.com>
11134
11135         * tree-vectorizer.h (vec_lower_bound): New structure.
11136         (_loop_vec_info): Add check_nonzero and lower_bounds.
11137         (LOOP_VINFO_CHECK_NONZERO): New macro.
11138         (LOOP_VINFO_LOWER_BOUNDS): Likewise.
11139         (LOOP_REQUIRES_VERSIONING_FOR_ALIAS): Check lower_bounds too.
11140         * tree-data-ref.h (dr_with_seg_len): Add access_size and align
11141         fields.  Make seg_len the distance travelled, not including the
11142         access size.
11143         (dr_direction_indicator): Declare.
11144         (dr_zero_step_indicator): Likewise.
11145         (dr_known_forward_stride_p): Likewise.
11146         * tree-data-ref.c: Include stringpool.h, tree-vrp.h and
11147         tree-ssanames.h.
11148         (runtime_alias_check_p): Allow runtime alias checks with
11149         variable strides.
11150         (operator ==): Compare access_size and align.
11151         (prune_runtime_alias_test_list): Rework for new distinction between
11152         the access_size and seg_len.
11153         (create_intersect_range_checks_index): Likewise.  Cope with polynomial
11154         segment lengths.
11155         (get_segment_min_max): New function.
11156         (create_intersect_range_checks): Use it.
11157         (dr_step_indicator): New function.
11158         (dr_direction_indicator): Likewise.
11159         (dr_zero_step_indicator): Likewise.
11160         (dr_known_forward_stride_p): Likewise.
11161         * tree-loop-distribution.c (data_ref_segment_size): Return
11162         DR_STEP * (niters - 1).
11163         (compute_alias_check_pairs): Update call to the dr_with_seg_len
11164         constructor.
11165         * tree-vect-data-refs.c (vect_check_nonzero_value): New function.
11166         (vect_preserves_scalar_order_p): New function, split out from...
11167         (vect_analyze_data_ref_dependence): ...here.  Check for zero steps.
11168         (vect_vfa_segment_size): Return DR_STEP * (length_factor - 1).
11169         (vect_vfa_access_size): New function.
11170         (vect_vfa_align): Likewise.
11171         (vect_compile_time_alias): Take access_size_a and access_b arguments.
11172         (dump_lower_bound): New function.
11173         (vect_check_lower_bound): Likewise.
11174         (vect_small_gap_p): Likewise.
11175         (vectorizable_with_step_bound_p): Likewise.
11176         (vect_prune_runtime_alias_test_list): Ignore cross-iteration
11177         depencies if the vectorization factor is 1.  Convert the checks
11178         for nonzero steps into checks on the bounds of DR_STEP.  Try using
11179         a bunds check for variable steps if the minimum required step is
11180         relatively small. Update calls to the dr_with_seg_len
11181         constructor and to vect_compile_time_alias.
11182         * tree-vect-loop-manip.c (vect_create_cond_for_lower_bounds): New
11183         function.
11184         (vect_loop_versioning): Call it.
11185         * tree-vect-loop.c (vect_analyze_loop_2): Clear LOOP_VINFO_LOWER_BOUNDS
11186         when retrying.
11187         (vect_estimate_min_profitable_iters): Account for any bounds checks.
11188
11189 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11190             Alan Hayward  <alan.hayward@arm.com>
11191             David Sherwood  <david.sherwood@arm.com>
11192
11193         * doc/sourcebuild.texi (vect_scatter_store): Document.
11194         * optabs.def (scatter_store_optab, mask_scatter_store_optab): New
11195         optabs.
11196         * doc/md.texi (scatter_store@var{m}, mask_scatter_store@var{m}):
11197         Document.
11198         * genopinit.c (main): Add supports_vec_scatter_store and
11199         supports_vec_scatter_store_cached to target_optabs.
11200         * gimple.h (gimple_expr_type): Handle IFN_SCATTER_STORE and
11201         IFN_MASK_SCATTER_STORE.
11202         * internal-fn.def (SCATTER_STORE, MASK_SCATTER_STORE): New internal
11203         functions.
11204         * internal-fn.h (internal_store_fn_p): Declare.
11205         (internal_fn_stored_value_index): Likewise.
11206         * internal-fn.c (scatter_store_direct): New macro.
11207         (expand_scatter_store_optab_fn): New function.
11208         (direct_scatter_store_optab_supported_p): New macro.
11209         (internal_store_fn_p): New function.
11210         (internal_gather_scatter_fn_p): Handle IFN_SCATTER_STORE and
11211         IFN_MASK_SCATTER_STORE.
11212         (internal_fn_mask_index): Likewise.
11213         (internal_fn_stored_value_index): New function.
11214         (internal_gather_scatter_fn_supported_p): Adjust operand numbers
11215         for scatter stores.
11216         * optabs-query.h (supports_vec_scatter_store_p): Declare.
11217         * optabs-query.c (supports_vec_scatter_store_p): New function.
11218         * tree-vectorizer.h (vect_get_store_rhs): Declare.
11219         * tree-vect-data-refs.c (vect_analyze_data_ref_access): Return
11220         true for scatter stores.
11221         (vect_gather_scatter_fn_p): Handle scatter stores too.
11222         (vect_check_gather_scatter): Consider using scatter stores if
11223         supports_vec_scatter_store_p.
11224         * tree-vect-patterns.c (vect_try_gather_scatter_pattern): Handle
11225         scatter stores too.
11226         * tree-vect-stmts.c (exist_non_indexing_operands_for_use_p): Use
11227         internal_fn_stored_value_index.
11228         (check_load_store_masking): Handle scatter stores too.
11229         (vect_get_store_rhs): Make public.
11230         (vectorizable_call): Use internal_store_fn_p.
11231         (vectorizable_store): Handle scatter store internal functions.
11232         (vect_transform_stmt): Compare GROUP_STORE_COUNT with GROUP_SIZE
11233         when deciding whether the end of the group has been reached.
11234         * config/aarch64/aarch64.md (UNSPEC_ST1_SCATTER): New unspec.
11235         * config/aarch64/aarch64-sve.md (scatter_store<mode>): New expander.
11236         (mask_scatter_store<mode>): New insns.
11237
11238 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11239             Alan Hayward  <alan.hayward@arm.com>
11240             David Sherwood  <david.sherwood@arm.com>
11241
11242         * tree-vectorizer.h (vect_gather_scatter_fn_p): Declare.
11243         * tree-vect-data-refs.c (vect_gather_scatter_fn_p): Make public.
11244         * tree-vect-stmts.c (vect_truncate_gather_scatter_offset): New
11245         function.
11246         (vect_use_strided_gather_scatters_p): Take a masked_p argument.
11247         Use vect_truncate_gather_scatter_offset if we can't treat the
11248         operation as a normal gather load or scatter store.
11249         (get_group_load_store_type): Take the gather_scatter_info
11250         as argument.  Try using a gather load or scatter store for
11251         single-element groups.
11252         (get_load_store_type): Update calls to get_group_load_store_type
11253         and vect_use_strided_gather_scatters_p.
11254
11255 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11256             Alan Hayward  <alan.hayward@arm.com>
11257             David Sherwood  <david.sherwood@arm.com>
11258
11259         * tree-vectorizer.h (vect_create_data_ref_ptr): Take an extra
11260         optional tree argument.
11261         * tree-vect-data-refs.c (vect_check_gather_scatter): Check for
11262         null target hooks.
11263         (vect_create_data_ref_ptr): Take the iv_step as an optional argument,
11264         but continue to use the current value as a fallback.
11265         (bump_vector_ptr): Use operand_equal_p rather than tree_int_cst_compare
11266         to compare the updates.
11267         * tree-vect-stmts.c (vect_use_strided_gather_scatters_p): New function.
11268         (get_load_store_type): Use it when handling a strided access.
11269         (vect_get_strided_load_store_ops): New function.
11270         (vect_get_data_ptr_increment): Likewise.
11271         (vectorizable_load): Handle strided gather loads.  Always pass
11272         a step to vect_create_data_ref_ptr and bump_vector_ptr.
11273
11274 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11275             Alan Hayward  <alan.hayward@arm.com>
11276             David Sherwood  <david.sherwood@arm.com>
11277
11278         * doc/md.texi (gather_load@var{m}): Document.
11279         (mask_gather_load@var{m}): Likewise.
11280         * genopinit.c (main): Add supports_vec_gather_load and
11281         supports_vec_gather_load_cached to target_optabs.
11282         * optabs-tree.c (init_tree_optimization_optabs): Use
11283         ggc_cleared_alloc to allocate target_optabs.
11284         * optabs.def (gather_load_optab, mask_gather_laod_optab): New optabs.
11285         * internal-fn.def (GATHER_LOAD, MASK_GATHER_LOAD): New internal
11286         functions.
11287         * internal-fn.h (internal_load_fn_p): Declare.
11288         (internal_gather_scatter_fn_p): Likewise.
11289         (internal_fn_mask_index): Likewise.
11290         (internal_gather_scatter_fn_supported_p): Likewise.
11291         * internal-fn.c (gather_load_direct): New macro.
11292         (expand_gather_load_optab_fn): New function.
11293         (direct_gather_load_optab_supported_p): New macro.
11294         (direct_internal_fn_optab): New function.
11295         (internal_load_fn_p): Likewise.
11296         (internal_gather_scatter_fn_p): Likewise.
11297         (internal_fn_mask_index): Likewise.
11298         (internal_gather_scatter_fn_supported_p): Likewise.
11299         * optabs-query.c (supports_at_least_one_mode_p): New function.
11300         (supports_vec_gather_load_p): Likewise.
11301         * optabs-query.h (supports_vec_gather_load_p): Declare.
11302         * tree-vectorizer.h (gather_scatter_info): Add ifn, element_type
11303         and memory_type field.
11304         (NUM_PATTERNS): Bump to 15.
11305         * tree-vect-data-refs.c: Include internal-fn.h.
11306         (vect_gather_scatter_fn_p): New function.
11307         (vect_describe_gather_scatter_call): Likewise.
11308         (vect_check_gather_scatter): Try using internal functions for
11309         gather loads.  Recognize existing calls to a gather load function.
11310         (vect_analyze_data_refs): Consider using gather loads if
11311         supports_vec_gather_load_p.
11312         * tree-vect-patterns.c (vect_get_load_store_mask): New function.
11313         (vect_get_gather_scatter_offset_type): Likewise.
11314         (vect_convert_mask_for_vectype): Likewise.
11315         (vect_add_conversion_to_patterm): Likewise.
11316         (vect_try_gather_scatter_pattern): Likewise.
11317         (vect_recog_gather_scatter_pattern): New pattern recognizer.
11318         (vect_vect_recog_func_ptrs): Add it.
11319         * tree-vect-stmts.c (exist_non_indexing_operands_for_use_p): Use
11320         internal_fn_mask_index and internal_gather_scatter_fn_p.
11321         (check_load_store_masking): Take the gather_scatter_info as an
11322         argument and handle gather loads.
11323         (vect_get_gather_scatter_ops): New function.
11324         (vectorizable_call): Check internal_load_fn_p.
11325         (vectorizable_load): Likewise.  Handle gather load internal
11326         functions.
11327         (vectorizable_store): Update call to check_load_store_masking.
11328         * config/aarch64/aarch64.md (UNSPEC_LD1_GATHER): New unspec.
11329         * config/aarch64/iterators.md (SVE_S, SVE_D): New mode iterators.
11330         * config/aarch64/predicates.md (aarch64_gather_scale_operand_w)
11331         (aarch64_gather_scale_operand_d): New predicates.
11332         * config/aarch64/aarch64-sve.md (gather_load<mode>): New expander.
11333         (mask_gather_load<mode>): New insns.
11334
11335 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11336             Alan Hayward  <alan.hayward@arm.com>
11337             David Sherwood  <david.sherwood@arm.com>
11338
11339         * optabs.def (fold_left_plus_optab): New optab.
11340         * doc/md.texi (fold_left_plus_@var{m}): Document.
11341         * internal-fn.def (IFN_FOLD_LEFT_PLUS): New internal function.
11342         * internal-fn.c (fold_left_direct): Define.
11343         (expand_fold_left_optab_fn): Likewise.
11344         (direct_fold_left_optab_supported_p): Likewise.
11345         * fold-const-call.c (fold_const_fold_left): New function.
11346         (fold_const_call): Use it to fold CFN_FOLD_LEFT_PLUS.
11347         * tree-parloops.c (valid_reduction_p): New function.
11348         (gather_scalar_reductions): Use it.
11349         * tree-vectorizer.h (FOLD_LEFT_REDUCTION): New vect_reduction_type.
11350         (vect_finish_replace_stmt): Declare.
11351         * tree-vect-loop.c (fold_left_reduction_fn): New function.
11352         (needs_fold_left_reduction_p): New function, split out from...
11353         (vect_is_simple_reduction): ...here.  Accept reductions that
11354         forbid reassociation, but give them type FOLD_LEFT_REDUCTION.
11355         (vect_force_simple_reduction): Also store the reduction type in
11356         the assignment's STMT_VINFO_REDUC_TYPE.
11357         (vect_model_reduction_cost): Handle FOLD_LEFT_REDUCTION.
11358         (merge_with_identity): New function.
11359         (vect_expand_fold_left): Likewise.
11360         (vectorize_fold_left_reduction): Likewise.
11361         (vectorizable_reduction): Handle FOLD_LEFT_REDUCTION.  Leave the
11362         scalar phi in place for it.  Check for target support and reject
11363         cases that would reassociate the operation.  Defer the transform
11364         phase to vectorize_fold_left_reduction.
11365         * config/aarch64/aarch64.md (UNSPEC_FADDA): New unspec.
11366         * config/aarch64/aarch64-sve.md (fold_left_plus_<mode>): New expander.
11367         (*fold_left_plus_<mode>, *pred_fold_left_plus_<mode>): New insns.
11368
11369 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11370
11371         * tree-if-conv.c (predicate_mem_writes): Remove redundant
11372         call to ifc_temp_var.
11373
11374 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11375             Alan Hayward  <alan.hayward@arm.com>
11376             David Sherwood  <david.sherwood@arm.com>
11377
11378         * target.def (legitimize_address_displacement): Take the original
11379         offset as a poly_int.
11380         * targhooks.h (default_legitimize_address_displacement): Update
11381         accordingly.
11382         * targhooks.c (default_legitimize_address_displacement): Likewise.
11383         * doc/tm.texi: Regenerate.
11384         * lra-constraints.c (base_plus_disp_to_reg): Take the displacement
11385         as an argument, moving assert of ad->disp == ad->disp_term to...
11386         (process_address_1): ...here.  Update calls to base_plus_disp_to_reg.
11387         Try calling targetm.legitimize_address_displacement before expanding
11388         the address rather than afterwards, and adjust for the new interface.
11389         * config/aarch64/aarch64.c (aarch64_legitimize_address_displacement):
11390         Match the new hook interface.  Handle SVE addresses.
11391         * config/sh/sh.c (sh_legitimize_address_displacement): Make the
11392         new hook interface.
11393
11394 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11395
11396         * Makefile.in (OBJS): Add early-remat.o.
11397         * target.def (select_early_remat_modes): New hook.
11398         * doc/tm.texi.in (TARGET_SELECT_EARLY_REMAT_MODES): New hook.
11399         * doc/tm.texi: Regenerate.
11400         * targhooks.h (default_select_early_remat_modes): Declare.
11401         * targhooks.c (default_select_early_remat_modes): New function.
11402         * timevar.def (TV_EARLY_REMAT): New timevar.
11403         * passes.def (pass_early_remat): New pass.
11404         * tree-pass.h (make_pass_early_remat): Declare.
11405         * early-remat.c: New file.
11406         * config/aarch64/aarch64.c (aarch64_select_early_remat_modes): New
11407         function.
11408         (TARGET_SELECT_EARLY_REMAT_MODES): Define.
11409
11410 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11411             Alan Hayward  <alan.hayward@arm.com>
11412             David Sherwood  <david.sherwood@arm.com>
11413
11414         * tree-vect-loop-manip.c (vect_gen_scalar_loop_niters): Replace
11415         vfm1 with a bound_epilog parameter.
11416         (vect_do_peeling): Update calls accordingly, and move the prologue
11417         call earlier in the function.  Treat the base bound_epilog as 0 for
11418         fully-masked loops and retain vf - 1 for other loops.  Add 1 to
11419         this base when peeling for gaps.
11420         * tree-vect-loop.c (vect_analyze_loop_2): Allow peeling for gaps
11421         with fully-masked loops.
11422         (vect_estimate_min_profitable_iters): Handle the single peeled
11423         iteration in that case.
11424
11425 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11426             Alan Hayward  <alan.hayward@arm.com>
11427             David Sherwood  <david.sherwood@arm.com>
11428
11429         * tree-vect-data-refs.c (vect_analyze_group_access_1): Allow
11430         single-element interleaving even if the size is not a power of 2.
11431         * tree-vect-stmts.c (get_load_store_type): Disallow elementwise
11432         accesses for single-element interleaving if the group size is
11433         not a power of 2.
11434
11435 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11436             Alan Hayward  <alan.hayward@arm.com>
11437             David Sherwood  <david.sherwood@arm.com>
11438
11439         * doc/md.texi (fold_extract_last_@var{m}): Document.
11440         * doc/sourcebuild.texi (vect_fold_extract_last): Likewise.
11441         * optabs.def (fold_extract_last_optab): New optab.
11442         * internal-fn.def (FOLD_EXTRACT_LAST): New internal function.
11443         * internal-fn.c (fold_extract_direct): New macro.
11444         (expand_fold_extract_optab_fn): Likewise.
11445         (direct_fold_extract_optab_supported_p): Likewise.
11446         * tree-vectorizer.h (EXTRACT_LAST_REDUCTION): New vect_reduction_type.
11447         * tree-vect-loop.c (vect_model_reduction_cost): Handle
11448         EXTRACT_LAST_REDUCTION.
11449         (get_initial_def_for_reduction): Do not create an initial vector
11450         for EXTRACT_LAST_REDUCTION reductions.
11451         (vectorizable_reduction): Leave the scalar phi in place for
11452         EXTRACT_LAST_REDUCTIONs.  Try using EXTRACT_LAST_REDUCTION
11453         ahead of INTEGER_INDUC_COND_REDUCTION.  Do not check for an
11454         epilogue code for EXTRACT_LAST_REDUCTION and defer the
11455         transform phase to vectorizable_condition.
11456         * tree-vect-stmts.c (vect_finish_stmt_generation_1): New function,
11457         split out from...
11458         (vect_finish_stmt_generation): ...here.
11459         (vect_finish_replace_stmt): New function.
11460         (vectorizable_condition): Handle EXTRACT_LAST_REDUCTION.
11461         * config/aarch64/aarch64-sve.md (fold_extract_last_<mode>): New
11462         pattern.
11463         * config/aarch64/aarch64.md (UNSPEC_CLASTB): New unspec.
11464
11465 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11466             Alan Hayward  <alan.hayward@arm.com>
11467             David Sherwood  <david.sherwood@arm.com>
11468
11469         * doc/md.texi (extract_last_@var{m}): Document.
11470         * optabs.def (extract_last_optab): New optab.
11471         * internal-fn.def (EXTRACT_LAST): New internal function.
11472         * internal-fn.c (cond_unary_direct): New macro.
11473         (expand_cond_unary_optab_fn): Likewise.
11474         (direct_cond_unary_optab_supported_p): Likewise.
11475         * tree-vect-loop.c (vectorizable_live_operation): Allow fully-masked
11476         loops using EXTRACT_LAST.
11477         * config/aarch64/aarch64-sve.md (aarch64_sve_lastb<mode>): Rename to...
11478         (extract_last_<mode>): ...this optab.
11479         (vec_extract<mode><Vel>): Update accordingly.
11480
11481 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11482             Alan Hayward  <alan.hayward@arm.com>
11483             David Sherwood  <david.sherwood@arm.com>
11484
11485         * target.def (empty_mask_is_expensive): New hook.
11486         * doc/tm.texi.in (TARGET_VECTORIZE_EMPTY_MASK_IS_EXPENSIVE): New hook.
11487         * doc/tm.texi: Regenerate.
11488         * targhooks.h (default_empty_mask_is_expensive): Declare.
11489         * targhooks.c (default_empty_mask_is_expensive): New function.
11490         * tree-vectorizer.c (vectorize_loops): Only call optimize_mask_stores
11491         if the target says that empty masks are expensive.
11492         * config/aarch64/aarch64.c (aarch64_empty_mask_is_expensive):
11493         New function.
11494         (TARGET_VECTORIZE_EMPTY_MASK_IS_EXPENSIVE): Redefine.
11495
11496 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11497             Alan Hayward  <alan.hayward@arm.com>
11498             David Sherwood  <david.sherwood@arm.com>
11499
11500         * tree-vectorizer.h (_loop_vec_info::mask_skip_niters): New field.
11501         (LOOP_VINFO_MASK_SKIP_NITERS): New macro.
11502         (vect_use_loop_mask_for_alignment_p): New function.
11503         (vect_prepare_for_masked_peels, vect_gen_while_not): Declare.
11504         * tree-vect-loop-manip.c (vect_set_loop_masks_directly): Add an
11505         niters_skip argument.  Make sure that the first niters_skip elements
11506         of the first iteration are inactive.
11507         (vect_set_loop_condition_masked): Handle LOOP_VINFO_MASK_SKIP_NITERS.
11508         Update call to vect_set_loop_masks_directly.
11509         (get_misalign_in_elems): New function, split out from...
11510         (vect_gen_prolog_loop_niters): ...here.
11511         (vect_update_init_of_dr): Take a code argument that specifies whether
11512         the adjustment should be added or subtracted.
11513         (vect_update_init_of_drs): Likewise.
11514         (vect_prepare_for_masked_peels): New function.
11515         (vect_do_peeling): Skip prologue peeling if we're using a mask
11516         instead.  Update call to vect_update_inits_of_drs.
11517         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
11518         mask_skip_niters.
11519         (vect_analyze_loop_2): Allow fully-masked loops with peeling for
11520         alignment.  Do not include the number of peeled iterations in
11521         the minimum threshold in that case.
11522         (vectorizable_induction): Adjust the start value down by
11523         LOOP_VINFO_MASK_SKIP_NITERS iterations.
11524         (vect_transform_loop): Call vect_prepare_for_masked_peels.
11525         Take the number of skipped iterations into account when calculating
11526         the loop bounds.
11527         * tree-vect-stmts.c (vect_gen_while_not): New function.
11528
11529 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11530             Alan Hayward  <alan.hayward@arm.com>
11531             David Sherwood  <david.sherwood@arm.com>
11532
11533         * doc/sourcebuild.texi (vect_fully_masked): Document.
11534         * params.def (PARAM_MIN_VECT_LOOP_BOUND): Change minimum and
11535         default value to 0.
11536         * tree-vect-loop.c (vect_analyze_loop_costing): New function,
11537         split out from...
11538         (vect_analyze_loop_2): ...here. Don't check the vectorization
11539         factor against the number of loop iterations if the loop is
11540         fully-masked.
11541
11542 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11543             Alan Hayward  <alan.hayward@arm.com>
11544             David Sherwood  <david.sherwood@arm.com>
11545
11546         * tree-ssa-loop-ivopts.c (USE_ADDRESS): Split into...
11547         (USE_REF_ADDRESS, USE_PTR_ADDRESS): ...these new use types.
11548         (dump_groups): Update accordingly.
11549         (iv_use::mem_type): New member variable.
11550         (address_p): New function.
11551         (record_use): Add a mem_type argument and initialize the new
11552         mem_type field.
11553         (record_group_use): Add a mem_type argument.  Use address_p.
11554         Remove obsolete null checks of base_object.  Update call to record_use.
11555         (find_interesting_uses_op): Update call to record_group_use.
11556         (find_interesting_uses_cond): Likewise.
11557         (find_interesting_uses_address): Likewise.
11558         (get_mem_type_for_internal_fn): New function.
11559         (find_address_like_use): Likewise.
11560         (find_interesting_uses_stmt): Try find_address_like_use before
11561         calling find_interesting_uses_op.
11562         (addr_offset_valid_p): Use the iv mem_type field as the type
11563         of the addressed memory.
11564         (add_autoinc_candidates): Likewise.
11565         (get_address_cost): Likewise.
11566         (split_small_address_groups_p): Use address_p.
11567         (split_address_groups): Likewise.
11568         (add_iv_candidate_for_use): Likewise.
11569         (autoinc_possible_for_pair): Likewise.
11570         (rewrite_groups): Likewise.
11571         (get_use_type): Check for USE_REF_ADDRESS instead of USE_ADDRESS.
11572         (determine_group_iv_cost): Update after split of USE_ADDRESS.
11573         (get_alias_ptr_type_for_ptr_address): New function.
11574         (rewrite_use_address): Rewrite address uses in calls that were
11575         identified by find_address_like_use.
11576
11577 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11578             Alan Hayward  <alan.hayward@arm.com>
11579             David Sherwood  <david.sherwood@arm.com>
11580
11581         * expr.c (expand_expr_addr_expr_1): Handle ADDR_EXPRs of
11582         TARGET_MEM_REFs.
11583         * gimple-expr.h (is_gimple_addressable: Likewise.
11584         * gimple-expr.c (is_gimple_address): Likewise.
11585         * internal-fn.c (expand_call_mem_ref): New function.
11586         (expand_mask_load_optab_fn): Use it.
11587         (expand_mask_store_optab_fn): Likewise.
11588
11589 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11590             Alan Hayward  <alan.hayward@arm.com>
11591             David Sherwood  <david.sherwood@arm.com>
11592
11593         * doc/md.texi (cond_add@var{mode}, cond_sub@var{mode})
11594         (cond_and@var{mode}, cond_ior@var{mode}, cond_xor@var{mode})
11595         (cond_smin@var{mode}, cond_smax@var{mode}, cond_umin@var{mode})
11596         (cond_umax@var{mode}): Document.
11597         * optabs.def (cond_add_optab, cond_sub_optab, cond_and_optab)
11598         (cond_ior_optab, cond_xor_optab, cond_smin_optab, cond_smax_optab)
11599         (cond_umin_optab, cond_umax_optab): New optabs.
11600         * internal-fn.def (COND_ADD, COND_SUB, COND_MIN, COND_MAX, COND_AND)
11601         (COND_IOR, COND_XOR): New internal functions.
11602         * internal-fn.h (get_conditional_internal_fn): Declare.
11603         * internal-fn.c (cond_binary_direct): New macro.
11604         (expand_cond_binary_optab_fn): Likewise.
11605         (direct_cond_binary_optab_supported_p): Likewise.
11606         (get_conditional_internal_fn): New function.
11607         * tree-vect-loop.c (vectorizable_reduction): Handle fully-masked loops.
11608         Cope with reduction statements that are vectorized as calls rather
11609         than assignments.
11610         * config/aarch64/aarch64-sve.md (cond_<optab><mode>): New insns.
11611         * config/aarch64/iterators.md (UNSPEC_COND_ADD, UNSPEC_COND_SUB)
11612         (UNSPEC_COND_SMAX, UNSPEC_COND_UMAX, UNSPEC_COND_SMIN)
11613         (UNSPEC_COND_UMIN, UNSPEC_COND_AND, UNSPEC_COND_ORR)
11614         (UNSPEC_COND_EOR): New unspecs.
11615         (optab): Add mappings for them.
11616         (SVE_COND_INT_OP, SVE_COND_FP_OP): New int iterators.
11617         (sve_int_op, sve_fp_op): New int attributes.
11618
11619 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11620             Alan Hayward  <alan.hayward@arm.com>
11621             David Sherwood  <david.sherwood@arm.com>
11622
11623         * optabs.def (while_ult_optab): New optab.
11624         * doc/md.texi (while_ult@var{m}@var{n}): Document.
11625         * internal-fn.def (WHILE_ULT): New internal function.
11626         * internal-fn.h (direct_internal_fn_supported_p): New override
11627         that takes two types as argument.
11628         * internal-fn.c (while_direct): New macro.
11629         (expand_while_optab_fn): New function.
11630         (convert_optab_supported_p): Likewise.
11631         (direct_while_optab_supported_p): New macro.
11632         * wide-int.h (wi::udiv_ceil): New function.
11633         * tree-vectorizer.h (rgroup_masks): New structure.
11634         (vec_loop_masks): New typedef.
11635         (_loop_vec_info): Add masks, mask_compare_type, can_fully_mask_p
11636         and fully_masked_p.
11637         (LOOP_VINFO_CAN_FULLY_MASK_P, LOOP_VINFO_FULLY_MASKED_P)
11638         (LOOP_VINFO_MASKS, LOOP_VINFO_MASK_COMPARE_TYPE): New macros.
11639         (vect_max_vf): New function.
11640         (slpeel_make_loop_iterate_ntimes): Delete.
11641         (vect_set_loop_condition, vect_get_loop_mask_type, vect_gen_while)
11642         (vect_halve_mask_nunits, vect_double_mask_nunits): Declare.
11643         (vect_record_loop_mask, vect_get_loop_mask): Likewise.
11644         * tree-vect-loop-manip.c: Include tree-ssa-loop-niter.h,
11645         internal-fn.h, stor-layout.h and optabs-query.h.
11646         (vect_set_loop_mask): New function.
11647         (add_preheader_seq): Likewise.
11648         (add_header_seq): Likewise.
11649         (interleave_supported_p): Likewise.
11650         (vect_maybe_permute_loop_masks): Likewise.
11651         (vect_set_loop_masks_directly): Likewise.
11652         (vect_set_loop_condition_masked): Likewise.
11653         (vect_set_loop_condition_unmasked): New function, split out from
11654         slpeel_make_loop_iterate_ntimes.
11655         (slpeel_make_loop_iterate_ntimes): Rename to..
11656         (vect_set_loop_condition): ...this.  Use vect_set_loop_condition_masked
11657         for fully-masked loops and vect_set_loop_condition_unmasked otherwise.
11658         (vect_do_peeling): Update call accordingly.
11659         (vect_gen_vector_loop_niters): Use VF as the step for fully-masked
11660         loops.
11661         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
11662         mask_compare_type, can_fully_mask_p and fully_masked_p.
11663         (release_vec_loop_masks): New function.
11664         (_loop_vec_info): Use it to free the loop masks.
11665         (can_produce_all_loop_masks_p): New function.
11666         (vect_get_max_nscalars_per_iter): Likewise.
11667         (vect_verify_full_masking): Likewise.
11668         (vect_analyze_loop_2): Save LOOP_VINFO_CAN_FULLY_MASK_P around
11669         retries, and free the mask rgroups before retrying.  Check loop-wide
11670         reasons for disallowing fully-masked loops.  Make the final decision
11671         about whether use a fully-masked loop or not.
11672         (vect_estimate_min_profitable_iters): Do not assume that peeling
11673         for the number of iterations will be needed for fully-masked loops.
11674         (vectorizable_reduction): Disable fully-masked loops.
11675         (vectorizable_live_operation): Likewise.
11676         (vect_halve_mask_nunits): New function.
11677         (vect_double_mask_nunits): Likewise.
11678         (vect_record_loop_mask): Likewise.
11679         (vect_get_loop_mask): Likewise.
11680         (vect_transform_loop): Handle the case in which the final loop
11681         iteration might handle a partial vector.  Call vect_set_loop_condition
11682         instead of slpeel_make_loop_iterate_ntimes.
11683         * tree-vect-stmts.c: Include tree-ssa-loop-niter.h and gimple-fold.h.
11684         (check_load_store_masking): New function.
11685         (prepare_load_store_mask): Likewise.
11686         (vectorizable_store): Handle fully-masked loops.
11687         (vectorizable_load): Likewise.
11688         (supportable_widening_operation): Use vect_halve_mask_nunits for
11689         booleans.
11690         (supportable_narrowing_operation): Likewise vect_double_mask_nunits.
11691         (vect_gen_while): New function.
11692         * config/aarch64/aarch64.md (umax<mode>3): New expander.
11693         (aarch64_uqdec<mode>): New insn.
11694
11695 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11696             Alan Hayward  <alan.hayward@arm.com>
11697             David Sherwood  <david.sherwood@arm.com>
11698
11699         * optabs.def (reduc_and_scal_optab, reduc_ior_scal_optab)
11700         (reduc_xor_scal_optab): New optabs.
11701         * doc/md.texi (reduc_and_scal_@var{m}, reduc_ior_scal_@var{m})
11702         (reduc_xor_scal_@var{m}): Document.
11703         * doc/sourcebuild.texi (vect_logical_reduc): Likewise.
11704         * internal-fn.def (IFN_REDUC_AND, IFN_REDUC_IOR, IFN_REDUC_XOR): New
11705         internal functions.
11706         * fold-const-call.c (fold_const_call): Handle them.
11707         * tree-vect-loop.c (reduction_fn_for_scalar_code): Return the new
11708         internal functions for BIT_AND_EXPR, BIT_IOR_EXPR and BIT_XOR_EXPR.
11709         * config/aarch64/aarch64-sve.md (reduc_<bit_reduc>_scal_<mode>):
11710         (*reduc_<bit_reduc>_scal_<mode>): New patterns.
11711         * config/aarch64/iterators.md (UNSPEC_ANDV, UNSPEC_ORV)
11712         (UNSPEC_XORV): New unspecs.
11713         (optab): Add entries for them.
11714         (BITWISEV): New int iterator.
11715         (bit_reduc_op): New int attributes.
11716
11717 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11718             Alan Hayward  <alan.hayward@arm.com>
11719             David Sherwood  <david.sherwood@arm.com>
11720
11721         * doc/md.texi (vec_shl_insert_@var{m}): New optab.
11722         * internal-fn.def (VEC_SHL_INSERT): New internal function.
11723         * optabs.def (vec_shl_insert_optab): New optab.
11724         * tree-vectorizer.h (can_duplicate_and_interleave_p): Declare.
11725         (duplicate_and_interleave): Likewise.
11726         * tree-vect-loop.c: Include internal-fn.h.
11727         (neutral_op_for_slp_reduction): New function, split out from
11728         get_initial_defs_for_reduction.
11729         (get_initial_def_for_reduction): Handle option 2 for variable-length
11730         vectors by loading the neutral value into a vector and then shifting
11731         the initial value into element 0.
11732         (get_initial_defs_for_reduction): Replace the code argument with
11733         the neutral value calculated by neutral_op_for_slp_reduction.
11734         Use gimple_build_vector for constant-length vectors.
11735         Use IFN_VEC_SHL_INSERT for variable-length vectors if all
11736         but the first group_size elements have a neutral value.
11737         Use duplicate_and_interleave otherwise.
11738         (vect_create_epilog_for_reduction): Take a neutral_op parameter.
11739         Update call to get_initial_defs_for_reduction.  Handle SLP
11740         reductions for variable-length vectors by creating one vector
11741         result for each scalar result, with the elements associated
11742         with other scalar results stubbed out with the neutral value.
11743         (vectorizable_reduction): Call neutral_op_for_slp_reduction.
11744         Require IFN_VEC_SHL_INSERT for double reductions on
11745         variable-length vectors, or SLP reductions that have
11746         a neutral value.  Require can_duplicate_and_interleave_p
11747         support for variable-length unchained SLP reductions if there
11748         is no neutral value, such as for MIN/MAX reductions.  Also require
11749         the number of vector elements to be a multiple of the number of
11750         SLP statements when doing variable-length unchained SLP reductions.
11751         Update call to vect_create_epilog_for_reduction.
11752         * tree-vect-slp.c (can_duplicate_and_interleave_p): Make public
11753         and remove initial values.
11754         (duplicate_and_interleave): Make public.
11755         * config/aarch64/aarch64.md (UNSPEC_INSR): New unspec.
11756         * config/aarch64/aarch64-sve.md (vec_shl_insert_<mode>): New insn.
11757
11758 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11759             Alan Hayward  <alan.hayward@arm.com>
11760             David Sherwood  <david.sherwood@arm.com>
11761
11762         * tree-vect-slp.c: Include gimple-fold.h and internal-fn.h
11763         (can_duplicate_and_interleave_p): New function.
11764         (vect_get_and_check_slp_defs): Take the vector of statements
11765         rather than just the current one.  Remove excess parentheses.
11766         Restriction rejectinon of vect_constant_def and vect_external_def
11767         for variable-length vectors to boolean types, or types for which
11768         can_duplicate_and_interleave_p is false.
11769         (vect_build_slp_tree_2): Update call to vect_get_and_check_slp_defs.
11770         (duplicate_and_interleave): New function.
11771         (vect_get_constant_vectors): Use gimple_build_vector for
11772         constant-length vectors and suitable variable-length constant
11773         vectors.  Use duplicate_and_interleave for other variable-length
11774         vectors.  Don't defer the update when inserting new statements.
11775
11776 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11777             Alan Hayward  <alan.hayward@arm.com>
11778             David Sherwood  <david.sherwood@arm.com>
11779
11780         * tree-vect-loop.c (vect_estimate_min_profitable_iters): Make sure
11781         min_profitable_iters doesn't go negative.
11782
11783 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11784             Alan Hayward  <alan.hayward@arm.com>
11785             David Sherwood  <david.sherwood@arm.com>
11786
11787         * doc/md.texi (vec_mask_load_lanes@var{m}@var{n}): Document.
11788         (vec_mask_store_lanes@var{m}@var{n}): Likewise.
11789         * optabs.def (vec_mask_load_lanes_optab): New optab.
11790         (vec_mask_store_lanes_optab): Likewise.
11791         * internal-fn.def (MASK_LOAD_LANES): New internal function.
11792         (MASK_STORE_LANES): Likewise.
11793         * internal-fn.c (mask_load_lanes_direct): New macro.
11794         (mask_store_lanes_direct): Likewise.
11795         (expand_mask_load_optab_fn): Handle masked operations.
11796         (expand_mask_load_lanes_optab_fn): New macro.
11797         (expand_mask_store_optab_fn): Handle masked operations.
11798         (expand_mask_store_lanes_optab_fn): New macro.
11799         (direct_mask_load_lanes_optab_supported_p): Likewise.
11800         (direct_mask_store_lanes_optab_supported_p): Likewise.
11801         * tree-vectorizer.h (vect_store_lanes_supported): Take a masked_p
11802         parameter.
11803         (vect_load_lanes_supported): Likewise.
11804         * tree-vect-data-refs.c (strip_conversion): New function.
11805         (can_group_stmts_p): Likewise.
11806         (vect_analyze_data_ref_accesses): Use it instead of checking
11807         for a pair of assignments.
11808         (vect_store_lanes_supported): Take a masked_p parameter.
11809         (vect_load_lanes_supported): Likewise.
11810         * tree-vect-loop.c (vect_analyze_loop_2): Update calls to
11811         vect_store_lanes_supported and vect_load_lanes_supported.
11812         * tree-vect-slp.c (vect_analyze_slp_instance): Likewise.
11813         * tree-vect-stmts.c (get_group_load_store_type): Take a masked_p
11814         parameter.  Don't allow gaps for masked accesses.
11815         Use vect_get_store_rhs.  Update calls to vect_store_lanes_supported
11816         and vect_load_lanes_supported.
11817         (get_load_store_type): Take a masked_p parameter and update
11818         call to get_group_load_store_type.
11819         (vectorizable_store): Update call to get_load_store_type.
11820         Handle IFN_MASK_STORE_LANES.
11821         (vectorizable_load): Update call to get_load_store_type.
11822         Handle IFN_MASK_LOAD_LANES.
11823
11824 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11825             Alan Hayward  <alan.hayward@arm.com>
11826             David Sherwood  <david.sherwood@arm.com>
11827
11828         * config/aarch64/aarch64-modes.def: Define x2, x3 and x4 vector
11829         modes for SVE.
11830         * config/aarch64/aarch64-protos.h
11831         (aarch64_sve_struct_memory_operand_p): Declare.
11832         * config/aarch64/iterators.md (SVE_STRUCT): New mode iterator.
11833         (vector_count, insn_length, VSINGLE, vsingle): New mode attributes.
11834         (VPRED, vpred): Handle SVE structure modes.
11835         * config/aarch64/constraints.md (Utx): New constraint.
11836         * config/aarch64/predicates.md (aarch64_sve_struct_memory_operand)
11837         (aarch64_sve_struct_nonimmediate_operand): New predicates.
11838         * config/aarch64/aarch64.md (UNSPEC_LDN, UNSPEC_STN): New unspecs.
11839         * config/aarch64/aarch64-sve.md (mov<mode>, *aarch64_sve_mov<mode>_le)
11840         (*aarch64_sve_mov<mode>_be, pred_mov<mode>): New patterns for
11841         structure modes.  Split into pieces after RA.
11842         (vec_load_lanes<mode><vsingle>, vec_mask_load_lanes<mode><vsingle>)
11843         (vec_store_lanes<mode><vsingle>, vec_mask_store_lanes<mode><vsingle>):
11844         New patterns.
11845         * config/aarch64/aarch64.c (aarch64_classify_vector_mode): Handle
11846         SVE structure modes.
11847         (aarch64_classify_address): Likewise.
11848         (sizetochar): Move earlier in file.
11849         (aarch64_print_operand): Handle SVE register lists.
11850         (aarch64_array_mode): New function.
11851         (aarch64_sve_struct_memory_operand_p): Likewise.
11852         (TARGET_ARRAY_MODE): Redefine.
11853
11854 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11855             Alan Hayward  <alan.hayward@arm.com>
11856             David Sherwood  <david.sherwood@arm.com>
11857
11858         * target.def (array_mode): New target hook.
11859         * doc/tm.texi.in (TARGET_ARRAY_MODE): New hook.
11860         * doc/tm.texi: Regenerate.
11861         * hooks.h (hook_optmode_mode_uhwi_none): Declare.
11862         * hooks.c (hook_optmode_mode_uhwi_none): New function.
11863         * tree-vect-data-refs.c (vect_lanes_optab_supported_p): Use
11864         targetm.array_mode.
11865         * stor-layout.c (mode_for_array): Likewise.  Support polynomial
11866         type sizes.
11867
11868 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11869             Alan Hayward  <alan.hayward@arm.com>
11870             David Sherwood  <david.sherwood@arm.com>
11871
11872         * fold-const.c (fold_binary_loc): Check the argument types
11873         rather than the result type when testing for a vector operation.
11874
11875 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11876
11877         * doc/tm.texi.in (DWARF_LAZY_REGISTER_VALUE): Document.
11878         * doc/tm.texi: Regenerate.
11879
11880 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11881             Alan Hayward  <alan.hayward@arm.com>
11882             David Sherwood  <david.sherwood@arm.com>
11883
11884         * doc/invoke.texi (-msve-vector-bits=): Document new option.
11885         (sve): Document new AArch64 extension.
11886         * doc/md.texi (w): Extend the description of the AArch64
11887         constraint to include SVE vectors.
11888         (Upl, Upa): Document new AArch64 predicate constraints.
11889         * config/aarch64/aarch64-opts.h (aarch64_sve_vector_bits_enum): New
11890         enum.
11891         * config/aarch64/aarch64.opt (sve_vector_bits): New enum.
11892         (msve-vector-bits=): New option.
11893         * config/aarch64/aarch64-option-extensions.def (fp, simd): Disable
11894         SVE when these are disabled.
11895         (sve): New extension.
11896         * config/aarch64/aarch64-modes.def: Define SVE vector and predicate
11897         modes.  Adjust their number of units based on aarch64_sve_vg.
11898         (MAX_BITSIZE_MODE_ANY_MODE): Define.
11899         * config/aarch64/aarch64-protos.h (ADDR_QUERY_ANY): New
11900         aarch64_addr_query_type.
11901         (aarch64_const_vec_all_same_in_range_p, aarch64_sve_pred_mode)
11902         (aarch64_sve_cnt_immediate_p, aarch64_sve_addvl_addpl_immediate_p)
11903         (aarch64_sve_inc_dec_immediate_p, aarch64_add_offset_temporaries)
11904         (aarch64_split_add_offset, aarch64_output_sve_cnt_immediate)
11905         (aarch64_output_sve_addvl_addpl, aarch64_output_sve_inc_dec_immediate)
11906         (aarch64_output_sve_mov_immediate, aarch64_output_ptrue): Declare.
11907         (aarch64_simd_imm_zero_p): Delete.
11908         (aarch64_check_zero_based_sve_index_immediate): Declare.
11909         (aarch64_sve_index_immediate_p, aarch64_sve_arith_immediate_p)
11910         (aarch64_sve_bitmask_immediate_p, aarch64_sve_dup_immediate_p)
11911         (aarch64_sve_cmp_immediate_p, aarch64_sve_float_arith_immediate_p)
11912         (aarch64_sve_float_mul_immediate_p): Likewise.
11913         (aarch64_classify_symbol): Take the offset as a HOST_WIDE_INT
11914         rather than an rtx.
11915         (aarch64_sve_ld1r_operand_p, aarch64_sve_ldr_operand_p): Declare.
11916         (aarch64_expand_mov_immediate): Take a gen_vec_duplicate callback.
11917         (aarch64_emit_sve_pred_move, aarch64_expand_sve_mem_move): Declare.
11918         (aarch64_expand_sve_vec_cmp_int, aarch64_expand_sve_vec_cmp_float)
11919         (aarch64_expand_sve_vcond, aarch64_expand_sve_vec_perm): Declare.
11920         (aarch64_regmode_natural_size): Likewise.
11921         * config/aarch64/aarch64.h (AARCH64_FL_SVE): New macro.
11922         (AARCH64_FL_V8_3, AARCH64_FL_RCPC, AARCH64_FL_DOTPROD): Shift
11923         left one place.
11924         (AARCH64_ISA_SVE, TARGET_SVE): New macros.
11925         (FIXED_REGISTERS, CALL_USED_REGISTERS, REGISTER_NAMES): Add entries
11926         for VG and the SVE predicate registers.
11927         (V_ALIASES): Add a "z"-prefixed alias.
11928         (FIRST_PSEUDO_REGISTER): Change to P15_REGNUM + 1.
11929         (AARCH64_DWARF_VG, AARCH64_DWARF_P0): New macros.
11930         (PR_REGNUM_P, PR_LO_REGNUM_P): Likewise.
11931         (PR_LO_REGS, PR_HI_REGS, PR_REGS): New reg_classes.
11932         (REG_CLASS_NAMES): Add entries for them.
11933         (REG_CLASS_CONTENTS): Likewise.  Update ALL_REGS to include VG
11934         and the predicate registers.
11935         (aarch64_sve_vg): Declare.
11936         (BITS_PER_SVE_VECTOR, BYTES_PER_SVE_VECTOR, BYTES_PER_SVE_PRED)
11937         (SVE_BYTE_MODE, MAX_COMPILE_TIME_VEC_BYTES): New macros.
11938         (REGMODE_NATURAL_SIZE): Define.
11939         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Handle
11940         SVE macros.
11941         * config/aarch64/aarch64.c: Include cfgrtl.h.
11942         (simd_immediate_info): Add a constructor for series vectors,
11943         and an associated step field.
11944         (aarch64_sve_vg): New variable.
11945         (aarch64_dbx_register_number): Handle VG and the predicate registers.
11946         (aarch64_vect_struct_mode_p, aarch64_vector_mode_p): Delete.
11947         (VEC_ADVSIMD, VEC_SVE_DATA, VEC_SVE_PRED, VEC_STRUCT, VEC_ANY_SVE)
11948         (VEC_ANY_DATA, VEC_STRUCT): New constants.
11949         (aarch64_advsimd_struct_mode_p, aarch64_sve_pred_mode_p)
11950         (aarch64_classify_vector_mode, aarch64_vector_data_mode_p)
11951         (aarch64_sve_data_mode_p, aarch64_sve_pred_mode)
11952         (aarch64_get_mask_mode): New functions.
11953         (aarch64_hard_regno_nregs): Handle SVE data modes for FP_REGS
11954         and FP_LO_REGS.  Handle PR_REGS, PR_LO_REGS and PR_HI_REGS.
11955         (aarch64_hard_regno_mode_ok): Handle VG.  Also handle the SVE
11956         predicate modes and predicate registers.  Explicitly restrict
11957         GPRs to modes of 16 bytes or smaller.  Only allow FP registers
11958         to store a vector mode if it is recognized by
11959         aarch64_classify_vector_mode.
11960         (aarch64_regmode_natural_size): New function.
11961         (aarch64_hard_regno_caller_save_mode): Return the original mode
11962         for predicates.
11963         (aarch64_sve_cnt_immediate_p, aarch64_output_sve_cnt_immediate)
11964         (aarch64_sve_addvl_addpl_immediate_p, aarch64_output_sve_addvl_addpl)
11965         (aarch64_sve_inc_dec_immediate_p, aarch64_output_sve_inc_dec_immediate)
11966         (aarch64_add_offset_1_temporaries, aarch64_offset_temporaries): New
11967         functions.
11968         (aarch64_add_offset): Add a temp2 parameter.  Assert that temp1
11969         does not overlap dest if the function is frame-related.  Handle
11970         SVE constants.
11971         (aarch64_split_add_offset): New function.
11972         (aarch64_add_sp, aarch64_sub_sp): Add temp2 parameters and pass
11973         them aarch64_add_offset.
11974         (aarch64_allocate_and_probe_stack_space): Add a temp2 parameter
11975         and update call to aarch64_sub_sp.
11976         (aarch64_add_cfa_expression): New function.
11977         (aarch64_expand_prologue): Pass extra temporary registers to the
11978         functions above.  Handle the case in which we need to emit new
11979         DW_CFA_expressions for registers that were originally saved
11980         relative to the stack pointer, but now have to be expressed
11981         relative to the frame pointer.
11982         (aarch64_output_mi_thunk): Pass extra temporary registers to the
11983         functions above.
11984         (aarch64_expand_epilogue): Likewise.  Prevent inheritance of
11985         IP0 and IP1 values for SVE frames.
11986         (aarch64_expand_vec_series): New function.
11987         (aarch64_expand_sve_widened_duplicate): Likewise.
11988         (aarch64_expand_sve_const_vector): Likewise.
11989         (aarch64_expand_mov_immediate): Add a gen_vec_duplicate parameter.
11990         Handle SVE constants.  Use emit_move_insn to move a force_const_mem
11991         into the register, rather than emitting a SET directly.
11992         (aarch64_emit_sve_pred_move, aarch64_expand_sve_mem_move)
11993         (aarch64_get_reg_raw_mode, offset_4bit_signed_scaled_p)
11994         (offset_6bit_unsigned_scaled_p, aarch64_offset_7bit_signed_scaled_p)
11995         (offset_9bit_signed_scaled_p): New functions.
11996         (aarch64_replicate_bitmask_imm): New function.
11997         (aarch64_bitmask_imm): Use it.
11998         (aarch64_cannot_force_const_mem): Reject expressions involving
11999         a CONST_POLY_INT.  Update call to aarch64_classify_symbol.
12000         (aarch64_classify_index): Handle SVE indices, by requiring
12001         a plain register index with a scale that matches the element size.
12002         (aarch64_classify_address): Handle SVE addresses.  Assert that
12003         the mode of the address is VOIDmode or an integer mode.
12004         Update call to aarch64_classify_symbol.
12005         (aarch64_classify_symbolic_expression): Update call to
12006         aarch64_classify_symbol.
12007         (aarch64_const_vec_all_in_range_p): New function.
12008         (aarch64_print_vector_float_operand): Likewise.
12009         (aarch64_print_operand): Handle 'N' and 'C'.  Use "zN" rather than
12010         "vN" for FP registers with SVE modes.  Handle (const ...) vectors
12011         and the FP immediates 1.0 and 0.5.
12012         (aarch64_print_address_internal): Handle SVE addresses.
12013         (aarch64_print_operand_address): Use ADDR_QUERY_ANY.
12014         (aarch64_regno_regclass): Handle predicate registers.
12015         (aarch64_secondary_reload): Handle big-endian reloads of SVE
12016         data modes.
12017         (aarch64_class_max_nregs): Handle SVE modes and predicate registers.
12018         (aarch64_rtx_costs): Check for ADDVL and ADDPL instructions.
12019         (aarch64_convert_sve_vector_bits): New function.
12020         (aarch64_override_options): Use it to handle -msve-vector-bits=.
12021         (aarch64_classify_symbol): Take the offset as a HOST_WIDE_INT
12022         rather than an rtx.
12023         (aarch64_legitimate_constant_p): Use aarch64_classify_vector_mode.
12024         Handle SVE vector and predicate modes.  Accept VL-based constants
12025         that need only one temporary register, and VL offsets that require
12026         no temporary registers.
12027         (aarch64_conditional_register_usage): Mark the predicate registers
12028         as fixed if SVE isn't available.
12029         (aarch64_vector_mode_supported_p): Use aarch64_classify_vector_mode.
12030         Return true for SVE vector and predicate modes.
12031         (aarch64_simd_container_mode): Take the number of bits as a poly_int64
12032         rather than an unsigned int.  Handle SVE modes.
12033         (aarch64_preferred_simd_mode): Update call accordingly.  Handle
12034         SVE modes.
12035         (aarch64_autovectorize_vector_sizes): Add BYTES_PER_SVE_VECTOR
12036         if SVE is enabled.
12037         (aarch64_sve_index_immediate_p, aarch64_sve_arith_immediate_p)
12038         (aarch64_sve_bitmask_immediate_p, aarch64_sve_dup_immediate_p)
12039         (aarch64_sve_cmp_immediate_p, aarch64_sve_float_arith_immediate_p)
12040         (aarch64_sve_float_mul_immediate_p): New functions.
12041         (aarch64_sve_valid_immediate): New function.
12042         (aarch64_simd_valid_immediate): Use it as the fallback for SVE vectors.
12043         Explicitly reject structure modes.  Check for INDEX constants.
12044         Handle PTRUE and PFALSE constants.
12045         (aarch64_check_zero_based_sve_index_immediate): New function.
12046         (aarch64_simd_imm_zero_p): Delete.
12047         (aarch64_mov_operand_p): Use aarch64_simd_valid_immediate for
12048         vector modes.  Accept constants in the range of CNT[BHWD].
12049         (aarch64_simd_scalar_immediate_valid_for_move): Explicitly
12050         ask for an Advanced SIMD mode.
12051         (aarch64_sve_ld1r_operand_p, aarch64_sve_ldr_operand_p): New functions.
12052         (aarch64_simd_vector_alignment): Handle SVE predicates.
12053         (aarch64_vectorize_preferred_vector_alignment): New function.
12054         (aarch64_simd_vector_alignment_reachable): Use it instead of
12055         the vector size.
12056         (aarch64_shift_truncation_mask): Use aarch64_vector_data_mode_p.
12057         (aarch64_output_sve_mov_immediate, aarch64_output_ptrue): New
12058         functions.
12059         (MAX_VECT_LEN): Delete.
12060         (expand_vec_perm_d): Add a vec_flags field.
12061         (emit_unspec2, aarch64_expand_sve_vec_perm): New functions.
12062         (aarch64_evpc_trn, aarch64_evpc_uzp, aarch64_evpc_zip)
12063         (aarch64_evpc_ext): Don't apply a big-endian lane correction
12064         for SVE modes.
12065         (aarch64_evpc_rev): Rename to...
12066         (aarch64_evpc_rev_local): ...this.  Use a predicated operation for SVE.
12067         (aarch64_evpc_rev_global): New function.
12068         (aarch64_evpc_dup): Enforce a 64-byte range for SVE DUP.
12069         (aarch64_evpc_tbl): Use MAX_COMPILE_TIME_VEC_BYTES instead of
12070         MAX_VECT_LEN.
12071         (aarch64_evpc_sve_tbl): New function.
12072         (aarch64_expand_vec_perm_const_1): Update after rename of
12073         aarch64_evpc_rev.  Handle SVE permutes too, trying
12074         aarch64_evpc_rev_global and using aarch64_evpc_sve_tbl rather
12075         than aarch64_evpc_tbl.
12076         (aarch64_vectorize_vec_perm_const): Initialize vec_flags.
12077         (aarch64_sve_cmp_operand_p, aarch64_unspec_cond_code)
12078         (aarch64_gen_unspec_cond, aarch64_expand_sve_vec_cmp_int)
12079         (aarch64_emit_unspec_cond, aarch64_emit_unspec_cond_or)
12080         (aarch64_emit_inverted_unspec_cond, aarch64_expand_sve_vec_cmp_float)
12081         (aarch64_expand_sve_vcond): New functions.
12082         (aarch64_modes_tieable_p): Use aarch64_vector_data_mode_p instead
12083         of aarch64_vector_mode_p.
12084         (aarch64_dwarf_poly_indeterminate_value): New function.
12085         (aarch64_compute_pressure_classes): Likewise.
12086         (aarch64_can_change_mode_class): Likewise.
12087         (TARGET_GET_RAW_RESULT_MODE, TARGET_GET_RAW_ARG_MODE): Redefine.
12088         (TARGET_VECTORIZE_PREFERRED_VECTOR_ALIGNMENT): Likewise.
12089         (TARGET_VECTORIZE_GET_MASK_MODE): Likewise.
12090         (TARGET_DWARF_POLY_INDETERMINATE_VALUE): Likewise.
12091         (TARGET_COMPUTE_PRESSURE_CLASSES): Likewise.
12092         (TARGET_CAN_CHANGE_MODE_CLASS): Likewise.
12093         * config/aarch64/constraints.md (Upa, Upl, Uav, Uat, Usv, Usi, Utr)
12094         (Uty, Dm, vsa, vsc, vsd, vsi, vsn, vsl, vsm, vsA, vsM, vsN): New
12095         constraints.
12096         (Dn, Dl, Dr): Accept const as well as const_vector.
12097         (Dz): Likewise.  Compare against CONST0_RTX.
12098         * config/aarch64/iterators.md: Refer to "Advanced SIMD" instead
12099         of "vector" where appropriate.
12100         (SVE_ALL, SVE_BH, SVE_BHS, SVE_BHSI, SVE_HSDI, SVE_HSF, SVE_SD)
12101         (SVE_SDI, SVE_I, SVE_F, PRED_ALL, PRED_BHS): New mode iterators.
12102         (UNSPEC_SEL, UNSPEC_ANDF, UNSPEC_IORF, UNSPEC_XORF, UNSPEC_COND_LT)
12103         (UNSPEC_COND_LE, UNSPEC_COND_EQ, UNSPEC_COND_NE, UNSPEC_COND_GE)
12104         (UNSPEC_COND_GT, UNSPEC_COND_LO, UNSPEC_COND_LS, UNSPEC_COND_HS)
12105         (UNSPEC_COND_HI, UNSPEC_COND_UO): New unspecs.
12106         (Vetype, VEL, Vel, VWIDE, Vwide, vw, vwcore, V_INT_EQUIV)
12107         (v_int_equiv): Extend to SVE modes.
12108         (Vesize, V128, v128, Vewtype, V_FP_EQUIV, v_fp_equiv, VPRED): New
12109         mode attributes.
12110         (LOGICAL_OR, SVE_INT_UNARY, SVE_FP_UNARY): New code iterators.
12111         (optab): Handle popcount, smin, smax, umin, umax, abs and sqrt.
12112         (logical_nn, lr, sve_int_op, sve_fp_op): New code attributs.
12113         (LOGICALF, OPTAB_PERMUTE, UNPACK, UNPACK_UNSIGNED, SVE_COND_INT_CMP)
12114         (SVE_COND_FP_CMP): New int iterators.
12115         (perm_hilo): Handle the new unpack unspecs.
12116         (optab, logicalf_op, su, perm_optab, cmp_op, imm_con): New int
12117         attributes.
12118         * config/aarch64/predicates.md (aarch64_sve_cnt_immediate)
12119         (aarch64_sve_addvl_addpl_immediate, aarch64_split_add_offset_immediate)
12120         (aarch64_pluslong_or_poly_operand, aarch64_nonmemory_operand)
12121         (aarch64_equality_operator, aarch64_constant_vector_operand)
12122         (aarch64_sve_ld1r_operand, aarch64_sve_ldr_operand): New predicates.
12123         (aarch64_sve_nonimmediate_operand): Likewise.
12124         (aarch64_sve_general_operand): Likewise.
12125         (aarch64_sve_dup_operand, aarch64_sve_arith_immediate): Likewise.
12126         (aarch64_sve_sub_arith_immediate, aarch64_sve_inc_dec_immediate)
12127         (aarch64_sve_logical_immediate, aarch64_sve_mul_immediate): Likewise.
12128         (aarch64_sve_dup_immediate, aarch64_sve_cmp_vsc_immediate): Likewise.
12129         (aarch64_sve_cmp_vsd_immediate, aarch64_sve_index_immediate): Likewise.
12130         (aarch64_sve_float_arith_immediate): Likewise.
12131         (aarch64_sve_float_arith_with_sub_immediate): Likewise.
12132         (aarch64_sve_float_mul_immediate, aarch64_sve_arith_operand): Likewise.
12133         (aarch64_sve_add_operand, aarch64_sve_logical_operand): Likewise.
12134         (aarch64_sve_lshift_operand, aarch64_sve_rshift_operand): Likewise.
12135         (aarch64_sve_mul_operand, aarch64_sve_cmp_vsc_operand): Likewise.
12136         (aarch64_sve_cmp_vsd_operand, aarch64_sve_index_operand): Likewise.
12137         (aarch64_sve_float_arith_operand): Likewise.
12138         (aarch64_sve_float_arith_with_sub_operand): Likewise.
12139         (aarch64_sve_float_mul_operand): Likewise.
12140         (aarch64_sve_vec_perm_operand): Likewise.
12141         (aarch64_pluslong_operand): Include aarch64_sve_addvl_addpl_immediate.
12142         (aarch64_mov_operand): Accept const_poly_int and const_vector.
12143         (aarch64_simd_lshift_imm, aarch64_simd_rshift_imm): Accept const
12144         as well as const_vector.
12145         (aarch64_simd_imm_zero, aarch64_simd_imm_minus_one): Move earlier
12146         in file.  Use CONST0_RTX and CONSTM1_RTX.
12147         (aarch64_simd_or_scalar_imm_zero): Likewise.  Add match_codes.
12148         (aarch64_simd_reg_or_zero): Accept const as well as const_vector.
12149         Use aarch64_simd_imm_zero.
12150         * config/aarch64/aarch64-sve.md: New file.
12151         * config/aarch64/aarch64.md: Include it.
12152         (VG_REGNUM, P0_REGNUM, P7_REGNUM, P15_REGNUM): New register numbers.
12153         (UNSPEC_REV, UNSPEC_LD1_SVE, UNSPEC_ST1_SVE, UNSPEC_MERGE_PTRUE)
12154         (UNSPEC_PTEST_PTRUE, UNSPEC_UNPACKSHI, UNSPEC_UNPACKUHI)
12155         (UNSPEC_UNPACKSLO, UNSPEC_UNPACKULO, UNSPEC_PACK)
12156         (UNSPEC_FLOAT_CONVERT, UNSPEC_WHILE_LO): New unspec constants.
12157         (sve): New attribute.
12158         (enabled): Disable instructions with the sve attribute unless
12159         TARGET_SVE.
12160         (movqi, movhi): Pass CONST_POLY_INT operaneds through
12161         aarch64_expand_mov_immediate.
12162         (*mov<mode>_aarch64, *movsi_aarch64, *movdi_aarch64): Handle
12163         CNT[BHSD] immediates.
12164         (movti): Split CONST_POLY_INT moves into two halves.
12165         (add<mode>3): Accept aarch64_pluslong_or_poly_operand.
12166         Split additions that need a temporary here if the destination
12167         is the stack pointer.
12168         (*add<mode>3_aarch64): Handle ADDVL and ADDPL immediates.
12169         (*add<mode>3_poly_1): New instruction.
12170         (set_clobber_cc): New expander.
12171
12172 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
12173
12174         * simplify-rtx.c (simplify_immed_subreg): Add an inner_bytes
12175         parameter and use it instead of GET_MODE_SIZE (innermode).  Use
12176         inner_bytes * BITS_PER_UNIT instead of GET_MODE_BITSIZE (innermode).
12177         Use CEIL (inner_bytes, GET_MODE_UNIT_SIZE (innermode)) instead of
12178         GET_MODE_NUNITS (innermode).  Also add a first_elem parameter.
12179         Change innermode from fixed_mode_size to machine_mode.
12180         (simplify_subreg): Update call accordingly.  Handle a constant-sized
12181         subreg of a variable-length CONST_VECTOR.
12182
12183 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
12184             Alan Hayward  <alan.hayward@arm.com>
12185             David Sherwood  <david.sherwood@arm.com>
12186
12187         * tree-ssa-address.c (mem_ref_valid_without_offset_p): New function.
12188         (add_offset_to_base): New function, split out from...
12189         (create_mem_ref): ...here.  When handling a scale other than 1,
12190         check first whether the address is valid without the offset.
12191         Add it into the base if so, leaving the index and scale as-is.
12192
12193 2018-01-12  Jakub Jelinek  <jakub@redhat.com>
12194
12195         PR c++/83778
12196         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Call
12197         fold_for_warn before checking if arg2 is INTEGER_CST.
12198
12199 2018-01-12  Segher Boessenkool  <segher@kernel.crashing.org>
12200
12201         * config/rs6000/predicates.md (load_multiple_operation): Delete.
12202         (store_multiple_operation): Delete.
12203         * config/rs6000/rs6000-cpus.def (601): Remove MASK_STRING.
12204         * config/rs6000/rs6000-protos.h (rs6000_output_load_multiple): Delete.
12205         * config/rs6000/rs6000-string.c (expand_block_move): Delete everything
12206         guarded by TARGET_STRING.
12207         (rs6000_output_load_multiple): Delete.
12208         * config/rs6000/rs6000.c (rs6000_option_override_internal): Delete
12209         OPTION_MASK_STRING / TARGET_STRING handling.
12210         (print_operand) <'N', 'O'>: Add comment that these are unused now.
12211         (const rs6000_opt_masks) <"string">: Change mask to 0.
12212         * config/rs6000/rs6000.h (TARGET_DEFAULT): Remove MASK_STRING.
12213         (MASK_STRING): Delete.
12214         * config/rs6000/rs6000.md (*mov<mode>_string): Delete TARGET_STRING
12215         parts.  Simplify.
12216         (load_multiple): Delete.
12217         (*ldmsi8): Delete.
12218         (*ldmsi7): Delete.
12219         (*ldmsi6): Delete.
12220         (*ldmsi5): Delete.
12221         (*ldmsi4): Delete.
12222         (*ldmsi3): Delete.
12223         (store_multiple): Delete.
12224         (*stmsi8): Delete.
12225         (*stmsi7): Delete.
12226         (*stmsi6): Delete.
12227         (*stmsi5): Delete.
12228         (*stmsi4): Delete.
12229         (*stmsi3): Delete.
12230         (movmemsi_8reg): Delete.
12231         (corresponding unnamed define_insn): Delete.
12232         (movmemsi_6reg): Delete.
12233         (corresponding unnamed define_insn): Delete.
12234         (movmemsi_4reg): Delete.
12235         (corresponding unnamed define_insn): Delete.
12236         (movmemsi_2reg): Delete.
12237         (corresponding unnamed define_insn): Delete.
12238         (movmemsi_1reg): Delete.
12239         (corresponding unnamed define_insn): Delete.
12240         * config/rs6000/rs6000.opt (mno-string): New.
12241         (mstring): Replace by deprecation warning stub.
12242         * doc/invoke.texi (RS/6000 and PowerPC Options): Delete -mstring.
12243
12244 2018-01-12  Jakub Jelinek  <jakub@redhat.com>
12245
12246         * regrename.c (regrename_do_replace): If replacing the same
12247         reg multiple times, try to reuse last created gen_raw_REG.
12248
12249         PR debug/81155
12250         * bb-reorder.c (pass_partition_blocks::gate): In lto don't partition
12251         main to workaround a bug in GDB.
12252
12253 2018-01-12  Tom de Vries  <tom@codesourcery.com>
12254
12255         PR target/83737
12256         * config.gcc (nvptx*-*-*): Set use_gcc_stdint=wrap.
12257
12258 2018-01-12  Vladimir Makarov  <vmakarov@redhat.com>
12259
12260         PR rtl-optimization/80481
12261         * ira-color.c (get_cap_member): New function.
12262         (allocnos_conflict_by_live_ranges_p): Use it.
12263         (slot_coalesced_allocno_live_ranges_intersect_p): Add assert.
12264         (setup_slot_coalesced_allocno_live_ranges): Ditto.
12265
12266 2018-01-12  Uros Bizjak  <ubizjak@gmail.com>
12267
12268         PR target/83628
12269         * config/alpha/alpha.md (*saddsi_1): New insn_ans_split pattern.
12270         (*saddl_se_1): Ditto.
12271         (*ssubsi_1): Ditto.
12272         (*ssubl_se_1): Ditto.
12273
12274 2018-01-12  Richard Sandiford  <richard.sandiford@linaro.org>
12275
12276         * tree-predcom.c (aff_combination_dr_offset): Use wi::to_poly_widest
12277         rather than wi::to_widest for DR_INITs.
12278         * tree-vect-data-refs.c (vect_find_same_alignment_drs): Use
12279         wi::to_poly_offset rather than wi::to_offset for DR_INIT.
12280         (vect_analyze_data_ref_accesses): Require both DR_INITs to be
12281         INTEGER_CSTs.
12282         (vect_analyze_group_access_1): Note that here.
12283
12284 2018-01-12  Richard Sandiford  <richard.sandiford@linaro.org>
12285
12286         * tree-vectorizer.c (get_vec_alignment_for_array_type): Handle
12287         polynomial type sizes.
12288
12289 2018-01-12  Richard Sandiford  <richard.sandiford@linaro.org>
12290
12291         * gimplify.c (gimple_add_tmp_var_fn): Allow variables to have a
12292         poly_uint64 size, rather than requiring an unsigned HOST_WIDE_INT size.
12293         (gimple_add_tmp_var): Likewise.
12294
12295 2018-01-12  Martin Liska  <mliska@suse.cz>
12296
12297         * gimple.c (gimple_alloc_counts): Use uint64_t instead of int.
12298         (gimple_alloc_sizes): Likewise.
12299         (dump_gimple_statistics): Use PRIu64 in printf format.
12300         * gimple.h: Change uint64_t to int.
12301
12302 2018-01-12  Martin Liska  <mliska@suse.cz>
12303
12304         * tree-core.h: Use uint64_t instead of int.
12305         * tree.c (tree_node_counts): Likewise.
12306         (tree_node_sizes): Likewise.
12307         (dump_tree_statistics): Use PRIu64 in printf format.
12308
12309 2018-01-12  Martin Liska  <mliska@suse.cz>
12310
12311         * Makefile.in: As qsort_chk is implemented in vec.c, add
12312         vec.o to linkage of gencfn-macros.
12313         * tree.c (build_new_poly_int_cst): Add CXX_MEM_STAT_INFO as it's
12314         passing the info to record_node_allocation_statistics.
12315         (test_vector_cst_patterns): Add CXX_MEM_STAT_INFO to declaration
12316         and pass the info.
12317         * ggc-common.c (struct ggc_usage): Add operator== and use
12318         it in operator< and compare function.
12319         * mem-stats.h (struct mem_usage): Likewise.
12320         * vec.c (struct vec_usage): Remove operator< and compare
12321         function. Can be simply inherited.
12322
12323 2018-01-12  Martin Jambor  <mjambor@suse.cz>
12324
12325         PR target/81616
12326         * params.def: New parameter PARAM_AVOID_FMA_MAX_BITS.
12327         * tree-ssa-math-opts.c: Include domwalk.h.
12328         (convert_mult_to_fma_1): New function.
12329         (fma_transformation_info): New type.
12330         (fma_deferring_state): Likewise.
12331         (cancel_fma_deferring): New function.
12332         (result_of_phi): Likewise.
12333         (last_fma_candidate_feeds_initial_phi): Likewise.
12334         (convert_mult_to_fma): Added deferring logic, split actual
12335         transformation to convert_mult_to_fma_1.
12336         (math_opts_dom_walker): New type.
12337         (math_opts_dom_walker::after_dom_children): New method, body moved
12338         here from pass_optimize_widening_mul::execute, added deferring logic
12339         bits.
12340         (pass_optimize_widening_mul::execute): Moved most of code to
12341         math_opts_dom_walker::after_dom_children.
12342         * config/i386/x86-tune.def (X86_TUNE_AVOID_128FMA_CHAINS): New.
12343         * config/i386/i386.c (ix86_option_override_internal): Added
12344         maybe_setting of PARAM_AVOID_FMA_MAX_BITS.
12345
12346 2018-01-12  Richard Biener  <rguenther@suse.de>
12347
12348         PR debug/83157
12349         * dwarf2out.c (gen_variable_die): Do not reset old_die for
12350         inline instance vars.
12351
12352 2018-01-12  Oleg Endo  <olegendo@gcc.gnu.org>
12353
12354         PR target/81819
12355         * config/rx/rx.c (rx_is_restricted_memory_address):
12356         Handle SUBREG case.
12357
12358 2018-01-12  Richard Biener  <rguenther@suse.de>
12359
12360         PR tree-optimization/80846
12361         * target.def (split_reduction): New target hook.
12362         * targhooks.c (default_split_reduction): New function.
12363         * targhooks.h (default_split_reduction): Declare.
12364         * tree-vect-loop.c (vect_create_epilog_for_reduction): If the
12365         target requests first reduce vectors by combining low and high
12366         parts.
12367         * tree-vect-stmts.c (vect_gen_perm_mask_any): Adjust.
12368         (get_vectype_for_scalar_type_and_size): Export.
12369         * tree-vectorizer.h (get_vectype_for_scalar_type_and_size): Declare.
12370         * doc/tm.texi.in (TARGET_VECTORIZE_SPLIT_REDUCTION): Document.
12371         * doc/tm.texi: Regenerate.
12372         * config/i386/i386.c (ix86_split_reduction): Implement
12373         TARGET_VECTORIZE_SPLIT_REDUCTION.
12374
12375 2018-01-12  Eric Botcazou  <ebotcazou@adacore.com>
12376
12377         PR target/83368
12378         * config/sparc/sparc.h (PIC_OFFSET_TABLE_REGNUM): Set to INVALID_REGNUM
12379         in PIC mode except for TARGET_VXWORKS_RTP.
12380         * config/sparc/sparc.c: Include cfgrtl.h.
12381         (TARGET_INIT_PIC_REG): Define.
12382         (TARGET_USE_PSEUDO_PIC_REG): Likewise.
12383         (sparc_pic_register_p): New predicate.
12384         (sparc_legitimate_address_p): Use it.
12385         (sparc_legitimize_pic_address): Likewise.
12386         (sparc_delegitimize_address): Likewise.
12387         (sparc_mode_dependent_address_p): Likewise.
12388         (gen_load_pcrel_sym): Remove 4th parameter.
12389         (load_got_register): Adjust call to above.  Remove obsolete stuff.
12390         (sparc_expand_prologue): Do not call load_got_register here.
12391         (sparc_flat_expand_prologue): Likewise.
12392         (sparc_output_mi_thunk): Set the pic_offset_table_rtx object.
12393         (sparc_use_pseudo_pic_reg): New function.
12394         (sparc_init_pic_reg): Likewise.
12395         * config/sparc/sparc.md (vxworks_load_got): Set the GOT register.
12396         (builtin_setjmp_receiver): Enable only for TARGET_VXWORKS_RTP.
12397
12398 2018-01-12  Christophe Lyon  <christophe.lyon@linaro.org>
12399
12400         * doc/sourcebuild.texi (Effective-Target Keywords, Other attributes):
12401         Add item for branch_cost.
12402
12403 2018-01-12  Eric Botcazou  <ebotcazou@adacore.com>
12404
12405         PR rtl-optimization/83565
12406         * rtlanal.c (nonzero_bits1): On WORD_REGISTER_OPERATIONS machines, do
12407         not extend the result to a larger mode for rotate operations.
12408         (num_sign_bit_copies1): Likewise.
12409
12410 2018-01-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
12411
12412         PR target/40411
12413         * config/sol2.h (STARTFILE_ARCH_SPEC): Don't use with -shared or
12414         -symbolic.
12415         Use values-Xc.o for -pedantic.
12416         Link with values-xpg4.o for C90, values-xpg6.o otherwise.
12417
12418 2018-01-12  Martin Liska  <mliska@suse.cz>
12419
12420         PR ipa/83054
12421         * ipa-devirt.c (final_warning_record::grow_type_warnings):
12422         New function.
12423         (possible_polymorphic_call_targets): Use it.
12424         (ipa_devirt): Likewise.
12425
12426 2018-01-12  Martin Liska  <mliska@suse.cz>
12427
12428         * profile-count.h (enum profile_quality): Use 0 as invalid
12429         enum value of profile_quality.
12430
12431 2018-01-12  Chung-Ju Wu  <jasonwucj@gmail.com>
12432
12433         * doc/invoke.texi (NDS32 Options): Add -mext-perf, -mext-perf2 and
12434         -mext-string options.
12435
12436 2018-01-12  Richard Biener  <rguenther@suse.de>
12437
12438         * lto-streamer-out.c (DFS::DFS_write_tree_body): Process
12439         DECL_DEBUG_EXPR conditional on DECL_HAS_DEBUG_EXPR_P.
12440         * tree-streamer-in.c (lto_input_ts_decl_common_tree_pointers):
12441         Likewise.
12442         * tree-streamer-out.c (write_ts_decl_common_tree_pointers): Likewise.
12443
12444 2018-01-11  Michael Meissner  <meissner@linux.vnet.ibm.com>
12445
12446         * configure.ac (--with-long-double-format): Add support for the
12447         configuration option to change the default long double format on
12448         PowerPC systems.
12449         * config.gcc (powerpc*-linux*-*): Likewise.
12450         * configure: Regenerate.
12451         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): If long
12452         double is IEEE, define __KC__ and __KF__ to allow floatn.h to be
12453         used without modification.
12454
12455 2018-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
12456
12457         * config/rs6000/rs6000-builtin.def (BU_P7_MISC_X): New #define.
12458         (SPEC_BARRIER): New instantiation of BU_P7_MISC_X.
12459         * config/rs6000/rs6000.c (rs6000_expand_builtin): Handle
12460         MISC_BUILTIN_SPEC_BARRIER.
12461         (rs6000_init_builtins): Likewise.
12462         * config/rs6000/rs6000.md (UNSPECV_SPEC_BARRIER): New UNSPECV
12463         enum value.
12464         (speculation_barrier): New define_insn.
12465         * doc/extend.texi: Document __builtin_speculation_barrier.
12466
12467 2018-01-11  Jakub Jelinek  <jakub@redhat.com>
12468
12469         PR target/83203
12470         * config/i386/i386.c (ix86_expand_vector_init_one_nonzero): If one_var
12471         is 0, for V{8,16}S[IF] and V[48]D[IF]mode use gen_vec_set<mode>_0.
12472         * config/i386/sse.md (VI8_AVX_AVX512F, VI4F_256_512): New mode
12473         iterators.
12474         (ssescalarmodesuffix): Add 512-bit vectors.  Use "d" or "q" for
12475         integral modes instead of "ss" and "sd".
12476         (vec_set<mode>_0): New define_insns for 256-bit and 512-bit
12477         vectors with 32-bit and 64-bit elements.
12478         (vecdupssescalarmodesuffix): New mode attribute.
12479         (vec_dup<mode>): Use it.
12480
12481 2018-01-11  H.J. Lu  <hongjiu.lu@intel.com>
12482
12483         PR target/83330
12484         * config/i386/i386.c (ix86_compute_frame_layout): Align stack
12485         frame if argument is passed on stack.
12486
12487 2018-01-11  Jakub Jelinek  <jakub@redhat.com>
12488
12489         PR target/82682
12490         * ree.c (combine_reaching_defs): Optimize also
12491         reg2=exp; reg1=reg2; reg2=any_extend(reg1); into
12492         reg2=any_extend(exp); reg1=reg2;, formatting fix.
12493
12494 2018-01-11  Jan Hubicka  <hubicka@ucw.cz>
12495
12496         PR middle-end/83189
12497         * gimple-ssa-isolate-paths.c (isolate_path): Fix profile update.
12498
12499 2018-01-11  Jan Hubicka  <hubicka@ucw.cz>
12500
12501         PR middle-end/83718
12502         * tree-inline.c (copy_cfg_body): Adjust num&den for scaling
12503         after they are computed.
12504
12505 2018-01-11  Bin Cheng  <bin.cheng@arm.com>
12506
12507         PR tree-optimization/83695
12508         * gimple-loop-linterchange.cc
12509         (tree_loop_interchange::interchange_loops): Call scev_reset_htab to
12510         reset cached scev information after interchange.
12511         (pass_linterchange::execute): Remove call to scev_reset_htab.
12512
12513 2018-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
12514
12515         * config/arm/arm_neon.h (vfmlal_lane_low_u32, vfmlal_lane_high_u32,
12516         vfmlalq_laneq_low_u32, vfmlalq_lane_low_u32, vfmlal_laneq_low_u32,
12517         vfmlalq_laneq_high_u32, vfmlalq_lane_high_u32, vfmlal_laneq_high_u32,
12518         vfmlsl_lane_low_u32, vfmlsl_lane_high_u32, vfmlslq_laneq_low_u32,
12519         vfmlslq_lane_low_u32, vfmlsl_laneq_low_u32, vfmlslq_laneq_high_u32,
12520         vfmlslq_lane_high_u32, vfmlsl_laneq_high_u32): Define.
12521         * config/arm/arm_neon_builtins.def (vfmal_lane_low,
12522         vfmal_lane_lowv4hf, vfmal_lane_lowv8hf, vfmal_lane_high,
12523         vfmal_lane_highv4hf, vfmal_lane_highv8hf, vfmsl_lane_low,
12524         vfmsl_lane_lowv4hf, vfmsl_lane_lowv8hf, vfmsl_lane_high,
12525         vfmsl_lane_highv4hf, vfmsl_lane_highv8hf): New sets of builtins.
12526         * config/arm/iterators.md (VFMLSEL2, vfmlsel2): New mode attributes.
12527         (V_lane_reg): Likewise.
12528         * config/arm/neon.md (neon_vfm<vfml_op>l_lane_<vfml_half><VCVTF:mode>):
12529         New define_expand.
12530         (neon_vfm<vfml_op>l_lane_<vfml_half><vfmlsel2><mode>): Likewise.
12531         (vfmal_lane_low<mode>_intrinsic,
12532         vfmal_lane_low<vfmlsel2><mode>_intrinsic,
12533         vfmal_lane_high<vfmlsel2><mode>_intrinsic,
12534         vfmal_lane_high<mode>_intrinsic, vfmsl_lane_low<mode>_intrinsic,
12535         vfmsl_lane_low<vfmlsel2><mode>_intrinsic,
12536         vfmsl_lane_high<vfmlsel2><mode>_intrinsic,
12537         vfmsl_lane_high<mode>_intrinsic): New define_insns.
12538
12539 2018-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
12540
12541         * config/arm/arm-cpus.in (fp16fml): New feature.
12542         (ALL_SIMD): Add fp16fml.
12543         (armv8.2-a): Add fp16fml as an option.
12544         (armv8.3-a): Likewise.
12545         (armv8.4-a): Add fp16fml as part of fp16.
12546         * config/arm/arm.h (TARGET_FP16FML): Define.
12547         * config/arm/arm-c.c (arm_cpu_builtins): Define __ARM_FEATURE_FP16_FML
12548         when appropriate.
12549         * config/arm/arm-modes.def (V2HF): Define.
12550         * config/arm/arm_neon.h (vfmlal_low_u32, vfmlsl_low_u32,
12551         vfmlal_high_u32, vfmlsl_high_u32, vfmlalq_low_u32,
12552         vfmlslq_low_u32, vfmlalq_high_u32, vfmlslq_high_u32): Define.
12553         * config/arm/arm_neon_builtins.def (vfmal_low, vfmal_high,
12554         vfmsl_low, vfmsl_high): New set of builtins.
12555         * config/arm/iterators.md (PLUSMINUS): New code iterator.
12556         (vfml_op): New code attribute.
12557         (VFMLHALVES): New int iterator.
12558         (VFML, VFMLSEL): New mode attributes.
12559         (V_reg): Define mapping for V2HF.
12560         (V_hi, V_lo): New mode attributes.
12561         (VF_constraint): Likewise.
12562         (vfml_half, vfml_half_selector): New int attributes.
12563         * config/arm/neon.md (neon_vfm<vfml_op>l_<vfml_half><mode>): New
12564         define_expand.
12565         (vfmal_low<mode>_intrinsic, vfmsl_high<mode>_intrinsic,
12566         vfmal_high<mode>_intrinsic, vfmsl_low<mode>_intrinsic):
12567         New define_insn.
12568         * config/arm/t-arm-elf (v8_fps): Add fp16fml.
12569         * config/arm/t-multilib (v8_2_a_simd_variants): Add fp16fml.
12570         * config/arm/unspecs.md (UNSPEC_VFML_LO, UNSPEC_VFML_HI): New unspecs.
12571         * doc/invoke.texi (ARM Options): Document fp16fml.  Update armv8.4-a
12572         documentation.
12573         * doc/sourcebuild.texi (arm_fp16fml_neon_ok, arm_fp16fml_neon):
12574         Document new effective target and option set.
12575
12576 2018-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
12577
12578         * config/arm/arm-cpus.in (armv8_4): New feature.
12579         (ARMv8_4a): New fgroup.
12580         (armv8.4-a): New arch.
12581         * config/arm/arm-tables.opt: Regenerate.
12582         * config/arm/t-aprofile: Add matching rules for -march=armv8.4-a.
12583         * config/arm/t-arm-elf (all_v8_archs): Add armv8.4-a.
12584         * config/arm/t-multilib (v8_4_a_simd_variants): New variable.
12585         Add matching rules for -march=armv8.4-a and extensions.
12586         * doc/invoke.texi (ARM Options): Document -march=armv8.4-a.
12587
12588 2018-01-11  Oleg Endo  <olegendo@gcc.gnu.org>
12589
12590         PR target/81821
12591         * config/rx/rx.md (BW): New mode attribute.
12592         (sync_lock_test_and_setsi): Add mode suffix to insn output.
12593
12594 2018-01-11  Richard Biener  <rguenther@suse.de>
12595
12596         PR tree-optimization/83435
12597         * graphite.c (canonicalize_loop_form): Ignore fake loop exit edges.
12598         * graphite-scop-detection.c (scop_detection::get_sese): Likewise.
12599         * tree-vrp.c (add_assert_info): Drop TREE_OVERFLOW if they appear.
12600
12601 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
12602             Alan Hayward  <alan.hayward@arm.com>
12603             David Sherwood  <david.sherwood@arm.com>
12604
12605         * config/aarch64/aarch64.c (aarch64_address_info): Add a const_offset
12606         field.
12607         (aarch64_classify_address): Initialize it.  Track polynomial offsets.
12608         (aarch64_print_address_internal): Use it to check for a zero offset.
12609
12610 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
12611             Alan Hayward  <alan.hayward@arm.com>
12612             David Sherwood  <david.sherwood@arm.com>
12613
12614         * config/aarch64/aarch64-modes.def (NUM_POLY_INT_COEFFS): Set to 2.
12615         * config/aarch64/aarch64-protos.h (aarch64_initial_elimination_offset):
12616         Return a poly_int64 rather than a HOST_WIDE_INT.
12617         (aarch64_offset_7bit_signed_scaled_p): Take the offset as a poly_int64
12618         rather than a HOST_WIDE_INT.
12619         * config/aarch64/aarch64.h (aarch64_frame): Protect with
12620         HAVE_POLY_INT_H rather than HOST_WIDE_INT.  Change locals_offset,
12621         hard_fp_offset, frame_size, initial_adjust, callee_offset and
12622         final_offset from HOST_WIDE_INT to poly_int64.
12623         * config/aarch64/aarch64-builtins.c (aarch64_simd_expand_args): Use
12624         to_constant when getting the number of units in an Advanced SIMD
12625         mode.
12626         (aarch64_builtin_vectorized_function): Check for a constant number
12627         of units.
12628         * config/aarch64/aarch64-simd.md (mov<mode>): Handle polynomial
12629         GET_MODE_SIZE.
12630         (aarch64_ld<VSTRUCT:nregs>_lane<VALLDIF:mode>): Use the nunits
12631         attribute instead of GET_MODE_NUNITS.
12632         * config/aarch64/aarch64.c (aarch64_hard_regno_nregs)
12633         (aarch64_class_max_nregs): Use the constant_lowest_bound of the
12634         GET_MODE_SIZE for fixed-size registers.
12635         (aarch64_const_vec_all_same_in_range_p): Use const_vec_duplicate_p.
12636         (aarch64_hard_regno_call_part_clobbered, aarch64_classify_index)
12637         (aarch64_mode_valid_for_sched_fusion_p, aarch64_classify_address)
12638         (aarch64_legitimize_address_displacement, aarch64_secondary_reload)
12639         (aarch64_print_operand, aarch64_print_address_internal)
12640         (aarch64_address_cost, aarch64_rtx_costs, aarch64_register_move_cost)
12641         (aarch64_short_vector_p, aapcs_vfp_sub_candidate)
12642         (aarch64_simd_attr_length_rglist, aarch64_operands_ok_for_ldpstp):
12643         Handle polynomial GET_MODE_SIZE.
12644         (aarch64_hard_regno_caller_save_mode): Likewise.  Return modes
12645         wider than SImode without modification.
12646         (tls_symbolic_operand_type): Use strip_offset instead of split_const.
12647         (aarch64_pass_by_reference, aarch64_layout_arg, aarch64_pad_reg_upward)
12648         (aarch64_gimplify_va_arg_expr): Assert that we don't yet handle
12649         passing and returning SVE modes.
12650         (aarch64_function_value, aarch64_layout_arg): Use gen_int_mode
12651         rather than GEN_INT.
12652         (aarch64_emit_probe_stack_range): Take the size as a poly_int64
12653         rather than a HOST_WIDE_INT, but call sorry if it isn't constant.
12654         (aarch64_allocate_and_probe_stack_space): Likewise.
12655         (aarch64_layout_frame): Cope with polynomial offsets.
12656         (aarch64_save_callee_saves, aarch64_restore_callee_saves): Take the
12657         start_offset as a poly_int64 rather than a HOST_WIDE_INT.  Track
12658         polynomial offsets.
12659         (offset_9bit_signed_unscaled_p, offset_12bit_unsigned_scaled_p)
12660         (aarch64_offset_7bit_signed_scaled_p): Take the offset as a
12661         poly_int64 rather than a HOST_WIDE_INT.
12662         (aarch64_get_separate_components, aarch64_process_components)
12663         (aarch64_expand_prologue, aarch64_expand_epilogue)
12664         (aarch64_use_return_insn_p): Handle polynomial frame offsets.
12665         (aarch64_anchor_offset): New function, split out from...
12666         (aarch64_legitimize_address): ...here.
12667         (aarch64_builtin_vectorization_cost): Handle polynomial
12668         TYPE_VECTOR_SUBPARTS.
12669         (aarch64_simd_check_vect_par_cnst_half): Handle polynomial
12670         GET_MODE_NUNITS.
12671         (aarch64_simd_make_constant, aarch64_expand_vector_init): Get the
12672         number of elements from the PARALLEL rather than the mode.
12673         (aarch64_shift_truncation_mask): Use GET_MODE_UNIT_BITSIZE
12674         rather than GET_MODE_BITSIZE.
12675         (aarch64_evpc_trn, aarch64_evpc_uzp, aarch64_evpc_ext)
12676         (aarch64_evpc_rev, aarch64_evpc_dup, aarch64_evpc_zip)
12677         (aarch64_expand_vec_perm_const_1): Handle polynomial
12678         d->perm.length () and d->perm elements.
12679         (aarch64_evpc_tbl): Likewise.  Use nelt rather than GET_MODE_NUNITS.
12680         Apply to_constant to d->perm elements.
12681         (aarch64_simd_valid_immediate, aarch64_vec_fpconst_pow_of_2): Handle
12682         polynomial CONST_VECTOR_NUNITS.
12683         (aarch64_move_pointer): Take amount as a poly_int64 rather
12684         than an int.
12685         (aarch64_progress_pointer): Avoid temporary variable.
12686         * config/aarch64/aarch64.md (aarch64_<crc_variant>): Use
12687         the mode attribute instead of GET_MODE.
12688
12689 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
12690             Alan Hayward  <alan.hayward@arm.com>
12691             David Sherwood  <david.sherwood@arm.com>
12692
12693         * config/aarch64/aarch64.c (aarch64_force_temporary): Assert that
12694         x exists before using it.
12695         (aarch64_add_constant_internal): Rename to...
12696         (aarch64_add_offset_1): ...this.  Replace regnum with separate
12697         src and dest rtxes.  Handle the case in which they're different,
12698         including when the offset is zero.  Replace scratchreg with an rtx.
12699         Use 2 additions if there is no spare register into which we can
12700         move a 16-bit constant.
12701         (aarch64_add_constant): Delete.
12702         (aarch64_add_offset): Replace reg with separate src and dest
12703         rtxes.  Take a poly_int64 offset instead of a HOST_WIDE_INT.
12704         Use aarch64_add_offset_1.
12705         (aarch64_add_sp, aarch64_sub_sp): Take the scratch register as
12706         an rtx rather than an int.  Take the delta as a poly_int64
12707         rather than a HOST_WIDE_INT.  Use aarch64_add_offset.
12708         (aarch64_expand_mov_immediate): Update uses of aarch64_add_offset.
12709         (aarch64_expand_prologue): Update calls to aarch64_sub_sp,
12710         aarch64_allocate_and_probe_stack_space and aarch64_add_offset.
12711         (aarch64_expand_epilogue): Update calls to aarch64_add_offset
12712         and aarch64_add_sp.
12713         (aarch64_output_mi_thunk): Use aarch64_add_offset rather than
12714         aarch64_add_constant.
12715
12716 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
12717
12718         * config/aarch64/aarch64.c (aarch64_reinterpret_float_as_int):
12719         Use scalar_float_mode.
12720
12721 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
12722
12723         * config/aarch64/aarch64-simd.md
12724         (aarch64_fml<f16mac1>l<f16quad>_low<mode>): Avoid GET_MODE_NUNITS.
12725         (aarch64_fml<f16mac1>l<f16quad>_high<mode>): Likewise.
12726         (aarch64_fml<f16mac1>l_lane_lowv2sf): Likewise.
12727         (aarch64_fml<f16mac1>l_lane_highv2sf): Likewise.
12728         (aarch64_fml<f16mac1>lq_laneq_lowv4sf): Likewise.
12729         (aarch64_fml<f16mac1>lq_laneq_highv4sf): Likewise.
12730         (aarch64_fml<f16mac1>l_laneq_lowv2sf): Likewise.
12731         (aarch64_fml<f16mac1>l_laneq_highv2sf): Likewise.
12732         (aarch64_fml<f16mac1>lq_lane_lowv4sf): Likewise.
12733         (aarch64_fml<f16mac1>lq_lane_highv4sf): Likewise.
12734
12735 2018-01-11  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
12736
12737         PR target/83514
12738         * config/arm/arm.c (arm_declare_function_name): Set arch_to_print if
12739         targ_options->x_arm_arch_string is non NULL.
12740
12741 2018-01-11  Tamar Christina  <tamar.christina@arm.com>
12742
12743         * config/aarch64/aarch64.h
12744         (AARCH64_FL_FOR_ARCH8_4): Add  AARCH64_FL_DOTPROD.
12745
12746 2018-01-11  Sudakshina Das  <sudi.das@arm.com>
12747
12748         PR target/82096
12749         * expmed.c (emit_store_flag_force): Swap if const op0
12750         and change VOIDmode to mode of op0.
12751
12752 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
12753
12754         PR rtl-optimization/83761
12755         * caller-save.c (replace_reg_with_saved_mem): Pass bits rather
12756         than bytes to mode_for_size.
12757
12758 2018-01-10  Jan Hubicka  <hubicka@ucw.cz>
12759
12760         PR middle-end/83189
12761         * gfortran.fortran-torture/compile/pr83189.f90: New testcase.
12762         * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Handle zero
12763         profile.
12764
12765 2018-01-10  Jan Hubicka  <hubicka@ucw.cz>
12766
12767         PR middle-end/83575
12768         * cfgrtl.c (rtl_verify_edges): Only verify fixability of partition
12769         when in layout mode.
12770         (cfg_layout_finalize): Do not verify cfg before we are out of layout.
12771         * cfgcleanup.c (try_optimize_cfg): Only verify flow info when doing
12772         partition fixup.
12773
12774 2018-01-10  Michael Collison  <michael.collison@arm.com>
12775
12776         * config/aarch64/aarch64-modes.def (V2HF): New VECTOR_MODE.
12777         * config/aarch64/aarch64-option-extension.def: Add
12778         AARCH64_OPT_EXTENSION of 'fp16fml'.
12779         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
12780         (__ARM_FEATURE_FP16_FML): Define if TARGET_F16FML is true.
12781         * config/aarch64/predicates.md (aarch64_lane_imm3): New predicate.
12782         * config/aarch64/constraints.md (Ui7): New constraint.
12783         * config/aarch64/iterators.md (VFMLA_W): New mode iterator.
12784         (VFMLA_SEL_W): Ditto.
12785         (f16quad): Ditto.
12786         (f16mac1): Ditto.
12787         (VFMLA16_LOW): New int iterator.
12788         (VFMLA16_HIGH): Ditto.
12789         (UNSPEC_FMLAL): New unspec.
12790         (UNSPEC_FMLSL): Ditto.
12791         (UNSPEC_FMLAL2): Ditto.
12792         (UNSPEC_FMLSL2): Ditto.
12793         (f16mac): New code attribute.
12794         * config/aarch64/aarch64-simd-builtins.def
12795         (aarch64_fmlal_lowv2sf): Ditto.
12796         (aarch64_fmlsl_lowv2sf): Ditto.
12797         (aarch64_fmlalq_lowv4sf): Ditto.
12798         (aarch64_fmlslq_lowv4sf): Ditto.
12799         (aarch64_fmlal_highv2sf): Ditto.
12800         (aarch64_fmlsl_highv2sf): Ditto.
12801         (aarch64_fmlalq_highv4sf): Ditto.
12802         (aarch64_fmlslq_highv4sf): Ditto.
12803         (aarch64_fmlal_lane_lowv2sf): Ditto.
12804         (aarch64_fmlsl_lane_lowv2sf): Ditto.
12805         (aarch64_fmlal_laneq_lowv2sf): Ditto.
12806         (aarch64_fmlsl_laneq_lowv2sf): Ditto.
12807         (aarch64_fmlalq_lane_lowv4sf): Ditto.
12808         (aarch64_fmlsl_lane_lowv4sf): Ditto.
12809         (aarch64_fmlalq_laneq_lowv4sf): Ditto.
12810         (aarch64_fmlsl_laneq_lowv4sf): Ditto.
12811         (aarch64_fmlal_lane_highv2sf): Ditto.
12812         (aarch64_fmlsl_lane_highv2sf): Ditto.
12813         (aarch64_fmlal_laneq_highv2sf): Ditto.
12814         (aarch64_fmlsl_laneq_highv2sf): Ditto.
12815         (aarch64_fmlalq_lane_highv4sf): Ditto.
12816         (aarch64_fmlsl_lane_highv4sf): Ditto.
12817         (aarch64_fmlalq_laneq_highv4sf): Ditto.
12818         (aarch64_fmlsl_laneq_highv4sf): Ditto.
12819         * config/aarch64/aarch64-simd.md:
12820         (aarch64_fml<f16mac1>l<f16quad>_low<mode>): New pattern.
12821         (aarch64_fml<f16mac1>l<f16quad>_high<mode>): Ditto.
12822         (aarch64_simd_fml<f16mac1>l<f16quad>_low<mode>): Ditto.
12823         (aarch64_simd_fml<f16mac1>l<f16quad>_high<mode>): Ditto.
12824         (aarch64_fml<f16mac1>l_lane_lowv2sf): Ditto.
12825         (aarch64_fml<f16mac1>l_lane_highv2sf): Ditto.
12826         (aarch64_simd_fml<f16mac>l_lane_lowv2sf): Ditto.
12827         (aarch64_simd_fml<f16mac>l_lane_highv2sf): Ditto.
12828         (aarch64_fml<f16mac1>lq_laneq_lowv4sf): Ditto.
12829         (aarch64_fml<f16mac1>lq_laneq_highv4sf): Ditto.
12830         (aarch64_simd_fml<f16mac>lq_laneq_lowv4sf): Ditto.
12831         (aarch64_simd_fml<f16mac>lq_laneq_highv4sf): Ditto.
12832         (aarch64_fml<f16mac1>l_laneq_lowv2sf): Ditto.
12833         (aarch64_fml<f16mac1>l_laneq_highv2sf): Ditto.
12834         (aarch64_simd_fml<f16mac>l_laneq_lowv2sf): Ditto.
12835         (aarch64_simd_fml<f16mac>l_laneq_highv2sf): Ditto.
12836         (aarch64_fml<f16mac1>lq_lane_lowv4sf): Ditto.
12837         (aarch64_fml<f16mac1>lq_lane_highv4sf): Ditto.
12838         (aarch64_simd_fml<f16mac>lq_lane_lowv4sf): Ditto.
12839         (aarch64_simd_fml<f16mac>lq_lane_highv4sf): Ditto.
12840         * config/aarch64/arm_neon.h (vfmlal_low_u32): New intrinsic.
12841         (vfmlsl_low_u32): Ditto.
12842         (vfmlalq_low_u32): Ditto.
12843         (vfmlslq_low_u32): Ditto.
12844         (vfmlal_high_u32): Ditto.
12845         (vfmlsl_high_u32): Ditto.
12846         (vfmlalq_high_u32): Ditto.
12847         (vfmlslq_high_u32): Ditto.
12848         (vfmlal_lane_low_u32): Ditto.
12849         (vfmlsl_lane_low_u32): Ditto.
12850         (vfmlal_laneq_low_u32): Ditto.
12851         (vfmlsl_laneq_low_u32): Ditto.
12852         (vfmlalq_lane_low_u32): Ditto.
12853         (vfmlslq_lane_low_u32): Ditto.
12854         (vfmlalq_laneq_low_u32): Ditto.
12855         (vfmlslq_laneq_low_u32): Ditto.
12856         (vfmlal_lane_high_u32): Ditto.
12857         (vfmlsl_lane_high_u32): Ditto.
12858         (vfmlal_laneq_high_u32): Ditto.
12859         (vfmlsl_laneq_high_u32): Ditto.
12860         (vfmlalq_lane_high_u32): Ditto.
12861         (vfmlslq_lane_high_u32): Ditto.
12862         (vfmlalq_laneq_high_u32): Ditto.
12863         (vfmlslq_laneq_high_u32): Ditto.
12864         * config/aarch64/aarch64.h (AARCH64_FL_F16SML): New flag.
12865         (AARCH64_FL_FOR_ARCH8_4): New.
12866         (AARCH64_ISA_F16FML): New ISA flag.
12867         (TARGET_F16FML): New feature flag for fp16fml.
12868         (doc/invoke.texi): Document new fp16fml option.
12869
12870 2018-01-10  Michael Collison  <michael.collison@arm.com>
12871
12872         * config/aarch64/aarch64-builtins.c:
12873         (aarch64_types_ternopu_imm_qualifiers, TYPES_TERNOPUI): New.
12874         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
12875         (__ARM_FEATURE_SHA3): Define if TARGET_SHA3 is true.
12876         * config/aarch64/aarch64.h (AARCH64_FL_SHA3): New flags.
12877         (AARCH64_ISA_SHA3): New ISA flag.
12878         (TARGET_SHA3): New feature flag for sha3.
12879         * config/aarch64/iterators.md (sha512_op): New int attribute.
12880         (CRYPTO_SHA512): New int iterator.
12881         (UNSPEC_SHA512H): New unspec.
12882         (UNSPEC_SHA512H2): Ditto.
12883         (UNSPEC_SHA512SU0): Ditto.
12884         (UNSPEC_SHA512SU1): Ditto.
12885         * config/aarch64/aarch64-simd-builtins.def
12886         (aarch64_crypto_sha512hqv2di): New builtin.
12887         (aarch64_crypto_sha512h2qv2di): Ditto.
12888         (aarch64_crypto_sha512su0qv2di): Ditto.
12889         (aarch64_crypto_sha512su1qv2di): Ditto.
12890         (aarch64_eor3qv8hi): Ditto.
12891         (aarch64_rax1qv2di): Ditto.
12892         (aarch64_xarqv2di): Ditto.
12893         (aarch64_bcaxqv8hi): Ditto.
12894         * config/aarch64/aarch64-simd.md:
12895         (aarch64_crypto_sha512h<sha512_op>qv2di): New pattern.
12896         (aarch64_crypto_sha512su0qv2di): Ditto.
12897         (aarch64_crypto_sha512su1qv2di): Ditto.
12898         (aarch64_eor3qv8hi): Ditto.
12899         (aarch64_rax1qv2di): Ditto.
12900         (aarch64_xarqv2di): Ditto.
12901         (aarch64_bcaxqv8hi): Ditto.
12902         * config/aarch64/arm_neon.h (vsha512hq_u64): New intrinsic.
12903         (vsha512h2q_u64): Ditto.
12904         (vsha512su0q_u64): Ditto.
12905         (vsha512su1q_u64): Ditto.
12906         (veor3q_u16): Ditto.
12907         (vrax1q_u64): Ditto.
12908         (vxarq_u64): Ditto.
12909         (vbcaxq_u16): Ditto.
12910         * config/arm/types.md (crypto_sha512): New type attribute.
12911         (crypto_sha3): Ditto.
12912         (doc/invoke.texi): Document new sha3 option.
12913
12914 2018-01-10  Michael Collison  <michael.collison@arm.com>
12915
12916         * config/aarch64/aarch64-builtins.c:
12917         (aarch64_types_quadopu_imm_qualifiers, TYPES_QUADOPUI): New.
12918         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
12919         (__ARM_FEATURE_SM3): Define if TARGET_SM4 is true.
12920         (__ARM_FEATURE_SM4): Define if TARGET_SM4 is true.
12921         * config/aarch64/aarch64.h (AARCH64_FL_SM4): New flags.
12922         (AARCH64_ISA_SM4): New ISA flag.
12923         (TARGET_SM4): New feature flag for sm4.
12924         * config/aarch64/aarch64-simd-builtins.def
12925         (aarch64_sm3ss1qv4si): Ditto.
12926         (aarch64_sm3tt1aq4si): Ditto.
12927         (aarch64_sm3tt1bq4si): Ditto.
12928         (aarch64_sm3tt2aq4si): Ditto.
12929         (aarch64_sm3tt2bq4si): Ditto.
12930         (aarch64_sm3partw1qv4si): Ditto.
12931         (aarch64_sm3partw2qv4si): Ditto.
12932         (aarch64_sm4eqv4si): Ditto.
12933         (aarch64_sm4ekeyqv4si): Ditto.
12934         * config/aarch64/aarch64-simd.md:
12935         (aarch64_sm3ss1qv4si): Ditto.
12936         (aarch64_sm3tt<sm3tt_op>qv4si): Ditto.
12937         (aarch64_sm3partw<sm3part_op>qv4si): Ditto.
12938         (aarch64_sm4eqv4si): Ditto.
12939         (aarch64_sm4ekeyqv4si): Ditto.
12940         * config/aarch64/iterators.md (sm3tt_op): New int iterator.
12941         (sm3part_op): Ditto.
12942         (CRYPTO_SM3TT): Ditto.
12943         (CRYPTO_SM3PART): Ditto.
12944         (UNSPEC_SM3SS1): New unspec.
12945         (UNSPEC_SM3TT1A): Ditto.
12946         (UNSPEC_SM3TT1B): Ditto.
12947         (UNSPEC_SM3TT2A): Ditto.
12948         (UNSPEC_SM3TT2B): Ditto.
12949         (UNSPEC_SM3PARTW1): Ditto.
12950         (UNSPEC_SM3PARTW2): Ditto.
12951         (UNSPEC_SM4E): Ditto.
12952         (UNSPEC_SM4EKEY): Ditto.
12953         * config/aarch64/constraints.md (Ui2): New constraint.
12954         * config/aarch64/predicates.md (aarch64_imm2): New predicate.
12955         * config/arm/types.md (crypto_sm3): New type attribute.
12956         (crypto_sm4): Ditto.
12957         * config/aarch64/arm_neon.h (vsm3ss1q_u32): New intrinsic.
12958         (vsm3tt1aq_u32): Ditto.
12959         (vsm3tt1bq_u32): Ditto.
12960         (vsm3tt2aq_u32): Ditto.
12961         (vsm3tt2bq_u32): Ditto.
12962         (vsm3partw1q_u32): Ditto.
12963         (vsm3partw2q_u32): Ditto.
12964         (vsm4eq_u32): Ditto.
12965         (vsm4ekeyq_u32): Ditto.
12966         (doc/invoke.texi): Document new sm4 option.
12967
12968 2018-01-10  Michael Collison  <michael.collison@arm.com>
12969
12970         * config/aarch64/aarch64-arches.def (armv8.4-a): New architecture.
12971         * config/aarch64/aarch64.h (AARCH64_ISA_V8_4): New ISA flag.
12972         (AARCH64_FL_FOR_ARCH8_4): New.
12973         (AARCH64_FL_V8_4): New flag.
12974         (doc/invoke.texi): Document new armv8.4-a option.
12975
12976 2018-01-10  Michael Collison  <michael.collison@arm.com>
12977
12978         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
12979         (__ARM_FEATURE_AES): Define if TARGET_AES is true.
12980         (__ARM_FEATURE_SHA2): Define if TARGET_SHA2 is true.
12981         * config/aarch64/aarch64-option-extension.def: Add
12982         AARCH64_OPT_EXTENSION of 'sha2'.
12983         (aes): Add AARCH64_OPT_EXTENSION of 'aes'.
12984         (crypto): Disable sha2 and aes if crypto disabled.
12985         (crypto): Enable aes and sha2 if enabled.
12986         (simd): Disable sha2 and aes if simd disabled.
12987         * config/aarch64/aarch64.h (AARCH64_FL_AES, AARCH64_FL_SHA2):
12988         New flags.
12989         (AARCH64_ISA_AES, AARCH64_ISA_SHA2): New ISA flags.
12990         (TARGET_SHA2): New feature flag for sha2.
12991         (TARGET_AES): New feature flag for aes.
12992         * config/aarch64/aarch64-simd.md:
12993         (aarch64_crypto_aes<aes_op>v16qi): Make pattern
12994         conditional on TARGET_AES.
12995         (aarch64_crypto_aes<aesmc_op>v16qi): Ditto.
12996         (aarch64_crypto_sha1hsi): Make pattern conditional
12997         on TARGET_SHA2.
12998         (aarch64_crypto_sha1hv4si): Ditto.
12999         (aarch64_be_crypto_sha1hv4si): Ditto.
13000         (aarch64_crypto_sha1su1v4si): Ditto.
13001         (aarch64_crypto_sha1<sha1_op>v4si): Ditto.
13002         (aarch64_crypto_sha1su0v4si): Ditto.
13003         (aarch64_crypto_sha256h<sha256_op>v4si): Ditto.
13004         (aarch64_crypto_sha256su0v4si): Ditto.
13005         (aarch64_crypto_sha256su1v4si): Ditto.
13006         (doc/invoke.texi): Document new aes and sha2 options.
13007
13008 2018-01-10  Martin Sebor  <msebor@redhat.com>
13009
13010         PR tree-optimization/83781
13011         * gimple-fold.c (get_range_strlen): Avoid treating arrays of pointers
13012         as string arrays.
13013
13014 2018-01-11  Martin Sebor  <msebor@gmail.com>
13015             Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
13016
13017         PR tree-optimization/83501
13018         PR tree-optimization/81703
13019
13020         * tree-ssa-strlen.c (get_string_cst): Rename...
13021         (get_string_len): ...to this.  Handle global constants.
13022         (handle_char_store): Adjust.
13023
13024 2018-01-10  Kito Cheng  <kito.cheng@gmail.com>
13025             Jim Wilson  <jimw@sifive.com>
13026
13027         * config/riscv/riscv-protos.h (riscv_output_return): New.
13028         * config/riscv/riscv.c (struct machine_function): New naked_p field.
13029         (riscv_attribute_table, riscv_output_return),
13030         (riscv_handle_fndecl_attribute, riscv_naked_function_p),
13031         (riscv_allocate_stack_slots_for_args, riscv_warn_func_return): New.
13032         (riscv_compute_frame_info): Only compute frame->mask if not a naked
13033         function.
13034         (riscv_expand_prologue): Add early return for naked function.
13035         (riscv_expand_epilogue): Likewise.
13036         (riscv_function_ok_for_sibcall): Return false for naked function.
13037         (riscv_set_current_function): New.
13038         (TARGET_SET_CURRENT_FUNCTION, TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS),
13039         (TARGET_ATTRIBUTE_TABLE, TARGET_WARN_FUNC_RETURN): New.
13040         * config/riscv/riscv.md (simple_return): Call riscv_output_return.
13041         * doc/extend.texi (RISC-V Function Attributes): New.
13042
13043 2018-01-10  Michael Meissner  <meissner@linux.vnet.ibm.com>
13044
13045         * config/rs6000/rs6000.c (is_complex_IBM_long_double): Explicitly
13046         check for 128-bit long double before checking TCmode.
13047         * config/rs6000/rs6000.h (FLOAT128_IEEE_P): Explicitly check for
13048         128-bit long doubles before checking TFmode or TCmode.
13049         (FLOAT128_IBM_P): Likewise.
13050
13051 2018-01-10  Martin Sebor  <msebor@redhat.com>
13052
13053         PR tree-optimization/83671
13054         * builtins.c (c_strlen): Unconditionally return zero for the empty
13055         string.
13056         Use -Warray-bounds for warnings.
13057         * gimple-fold.c (get_range_strlen): Handle non-constant lengths
13058         for non-constant array indices with COMPONENT_REF, arrays of
13059         arrays, and pointers to arrays.
13060         (gimple_fold_builtin_strlen): Determine and set length range for
13061         non-constant character arrays.
13062
13063 2018-01-10  Aldy Hernandez  <aldyh@redhat.com>
13064
13065         PR middle-end/81897
13066         * tree-ssa-uninit.c (convert_control_dep_chain_into_preds): Skip
13067         empty blocks.
13068
13069 2018-01-10  Eric Botcazou  <ebotcazou@adacore.com>
13070
13071         * dwarf2out.c (dwarf2out_var_location): Do not pass NULL to fprintf.
13072
13073 2018-01-10  Peter Bergner  <bergner@vnet.ibm.com>
13074
13075         PR target/83399
13076         * config/rs6000/rs6000.c (print_operand) <'y'>: Use
13077         VECTOR_MEM_ALTIVEC_OR_VSX_P.
13078         * config/rs6000/vsx.md (*vsx_le_perm_load_<mode> for VSX_D): Use
13079         indexed_or_indirect_operand predicate.
13080         (*vsx_le_perm_load_<mode> for VSX_W): Likewise.
13081         (*vsx_le_perm_load_v8hi): Likewise.
13082         (*vsx_le_perm_load_v16qi): Likewise.
13083         (*vsx_le_perm_store_<mode> for VSX_D): Likewise.
13084         (*vsx_le_perm_store_<mode> for VSX_W): Likewise.
13085         (*vsx_le_perm_store_v8hi): Likewise.
13086         (*vsx_le_perm_store_v16qi): Likewise.
13087         (eight unnamed splitters): Likewise.
13088
13089 2018-01-10  Peter Bergner  <bergner@vnet.ibm.com>
13090
13091         * config/rs6000/x86intrin.h: Change #warning to #error. Update message.
13092         * config/rs6000/emmintrin.h: Likewise.
13093         * config/rs6000/mmintrin.h: Likewise.
13094         * config/rs6000/xmmintrin.h: Likewise.
13095
13096 2018-01-10  David Malcolm  <dmalcolm@redhat.com>
13097
13098         PR c++/43486
13099         * tree-core.h: Document EXPR_LOCATION_WRAPPER_P's usage of
13100         "public_flag".
13101         * tree.c (tree_nop_conversion): Return true for location wrapper
13102         nodes.
13103         (maybe_wrap_with_location): New function.
13104         (selftest::check_strip_nops): New function.
13105         (selftest::test_location_wrappers): New function.
13106         (selftest::tree_c_tests): Call it.
13107         * tree.h (STRIP_ANY_LOCATION_WRAPPER): New macro.
13108         (maybe_wrap_with_location): New decl.
13109         (EXPR_LOCATION_WRAPPER_P): New macro.
13110         (location_wrapper_p): New inline function.
13111         (tree_strip_any_location_wrapper): New inline function.
13112
13113 2018-01-10  H.J. Lu  <hongjiu.lu@intel.com>
13114
13115         PR target/83735
13116         * config/i386/i386.c (ix86_compute_frame_layout): Always adjust
13117         stack_realign_offset for the largest alignment of stack slot
13118         actually used.
13119         (ix86_find_max_used_stack_alignment): New function.
13120         (ix86_finalize_stack_frame_flags): Use it.  Set
13121         max_used_stack_alignment if we don't realign stack.
13122         * config/i386/i386.h (machine_function): Add
13123         max_used_stack_alignment.
13124
13125 2018-01-10  Christophe Lyon  <christophe.lyon@linaro.org>
13126
13127         * config/arm/arm.opt (-mbranch-cost): New option.
13128         * config/arm/arm.h (BRANCH_COST): Take arm_branch_cost into
13129         account.
13130
13131 2018-01-10  Segher Boessenkool  <segher@kernel.crashing.org>
13132
13133         PR target/83629
13134         * config/rs6000/rs6000.md (load_toc_v4_PIC_2, load_toc_v4_PIC_3b,
13135         load_toc_v4_PIC_3c): Wrap const term in CONST RTL.
13136
13137 2018-01-10  Richard Biener  <rguenther@suse.de>
13138
13139         PR debug/83765
13140         * dwarf2out.c (gen_subprogram_die): Hoist old_die && declaration
13141         early out so it also covers the case where we have a non-NULL
13142         origin.
13143
13144 2018-01-10  Richard Sandiford  <richard.sandiford@linaro.org>
13145
13146         PR tree-optimization/83753
13147         * tree-vect-stmts.c (get_group_load_store_type): Use VMAT_CONTIGUOUS
13148         for non-strided grouped accesses if the number of elements is 1.
13149
13150 2018-01-10  Jan Hubicka  <hubicka@ucw.cz>
13151
13152         PR target/81616
13153         * i386.c (ix86_vectorize_builtin_gather): Check TARGET_USE_GATHER.
13154         * i386.h (TARGET_USE_GATHER): Define.
13155         * x86-tune.def (X86_TUNE_USE_GATHER): New.
13156
13157 2018-01-10  Martin Liska  <mliska@suse.cz>
13158
13159         PR bootstrap/82831
13160         * basic-block.h (CLEANUP_NO_PARTITIONING): New define.
13161         * bb-reorder.c (pass_reorder_blocks::execute): Do not clean up
13162         partitioning.
13163         * cfgcleanup.c (try_optimize_cfg): Fix up partitioning if
13164         CLEANUP_NO_PARTITIONING is not set.
13165
13166 2018-01-10  Richard Sandiford  <richard.sandiford@linaro.org>
13167
13168         * doc/rtl.texi: Remove documentation of (const ...) wrappers
13169         for vectors, as a partial revert of r254296.
13170         * rtl.h (const_vec_p): Delete.
13171         (const_vec_duplicate_p): Don't test for vector CONSTs.
13172         (unwrap_const_vec_duplicate, const_vec_series_p): Likewise.
13173         * expmed.c (make_tree): Likewise.
13174
13175         Revert:
13176         * common.md (E, F): Use CONSTANT_P instead of checking for
13177         CONST_VECTOR.
13178         * emit-rtl.c (gen_lowpart_common): Use const_vec_p instead of
13179         checking for CONST_VECTOR.
13180
13181 2018-01-09  Jan Hubicka  <hubicka@ucw.cz>
13182
13183         PR middle-end/83575
13184         * predict.c (force_edge_cold): Handle in more sane way edges
13185         with no prediction.
13186
13187 2018-01-09  Carl Love  <cel@us.ibm.com>
13188
13189         * config/rs6002/altivec.md (p8_vmrgow): Add support for V2DI, V2DF,
13190         V4SI, V4SF types.
13191         (p8_vmrgew): Add support for V2DI, V2DF, V4SF types.
13192         * config/rs6000/rs6000-builtin.def: Add definitions for FLOAT2_V2DF,
13193         VMRGEW_V2DI, VMRGEW_V2DF, VMRGEW_V4SF, VMRGOW_V4SI, VMRGOW_V4SF,
13194         VMRGOW_V2DI, VMRGOW_V2DF.  Remove definition for VMRGOW.
13195         * config/rs6000/rs6000-c.c (VSX_BUILTIN_VEC_FLOAT2,
13196         P8V_BUILTIN_VEC_VMRGEW, P8V_BUILTIN_VEC_VMRGOW):  Add definitions.
13197         * config/rs6000/rs6000-protos.h: Add extern defition for
13198         rs6000_generate_float2_double_code.
13199         * config/rs6000/rs6000.c (rs6000_generate_float2_double_code): Add
13200         function.
13201         * config/rs6000/vsx.md (vsx_xvcdpsp): Add define_insn.
13202         (float2_v2df): Add define_expand.
13203
13204 2018-01-09  Uros Bizjak  <ubizjak@gmail.com>
13205
13206         PR target/83628
13207         * combine.c (force_int_to_mode) <case ASHIFT>: Use mode instead of
13208         op_mode in the force_to_mode call.
13209
13210 2018-01-09  Richard Sandiford  <richard.sandiford@linaro.org>
13211
13212         * config/aarch64/aarch64.c (aarch64_evpc_trn): Use d.perm.series_p
13213         instead of checking each element individually.
13214         (aarch64_evpc_uzp): Likewise.
13215         (aarch64_evpc_zip): Likewise.
13216         (aarch64_evpc_ext): Likewise.
13217         (aarch64_evpc_rev): Likewise.
13218         (aarch64_evpc_dup): Test the encoding for a single duplicated element,
13219         instead of checking each element individually.  Return true without
13220         generating rtl if
13221         (aarch64_vectorize_vec_perm_const): Use all_from_input_p to test
13222         whether all selected elements come from the same input, instead of
13223         checking each element individually.  Remove calls to gen_rtx_REG,
13224         start_sequence and end_sequence and instead assert that no rtl is
13225         generated.
13226
13227 2018-01-09  Richard Sandiford  <richard.sandiford@linaro.org>
13228
13229         * config/aarch64/aarch64.c (aarch64_legitimate_constant_p): Fix
13230         order of HIGH and CONST checks.
13231
13232 2018-01-09  Richard Sandiford  <richard.sandiford@linaro.org>
13233
13234         * tree-vect-stmts.c (permute_vec_elements): Create a fresh variable
13235         if the destination isn't an SSA_NAME.
13236
13237 2018-01-09  Richard Biener  <rguenther@suse.de>
13238
13239         PR tree-optimization/83668
13240         * graphite.c (canonicalize_loop_closed_ssa): Add edge argument,
13241         move prologue...
13242         (canonicalize_loop_form): ... here, renamed from ...
13243         (canonicalize_loop_closed_ssa_form): ... this and amended to
13244         swap successor edges for loop exit blocks to make us use
13245         the RPO order we need for initial schedule generation.
13246
13247 2018-01-09  Joseph Myers  <joseph@codesourcery.com>
13248
13249         PR tree-optimization/64811
13250         * match.pd: When optimizing comparisons with Inf, avoid
13251         introducing or losing exceptions from comparisons with NaN.
13252
13253 2018-01-09  Martin Liska  <mliska@suse.cz>
13254
13255         PR sanitizer/82517
13256         * asan.c (shadow_mem_size): Add gcc_assert.
13257
13258 2018-01-09  Georg-Johann Lay  <avr@gjlay.de>
13259
13260         Don't save registers in main().
13261
13262         PR target/83738
13263         * doc/invoke.texi (AVR Options) [-mmain-is-OS_task]: Document it.
13264         * config/avr/avr.opt (-mmain-is-OS_task): New target option.
13265         * config/avr/avr.c (avr_set_current_function): Don't error if
13266         naked, OS_task or OS_main are specified at the same time.
13267         (avr_function_ok_for_sibcall): Don't disable sibcalls for OS_task,
13268         OS_main.
13269         (avr_insert_attributes) [-mmain-is-OS_task] <main>: Add OS_task
13270         attribute.
13271         * common/config/avr/avr-common.c (avr_option_optimization_table):
13272         Switch on -mmain-is-OS_task for optimizing compilations.
13273
13274 2018-01-09  Richard Biener  <rguenther@suse.de>
13275
13276         PR tree-optimization/83572
13277         * graphite.c: Include cfganal.h.
13278         (graphite_transform_loops): Connect infinite loops to exit
13279         and remove fake edges at the end.
13280
13281 2018-01-09  Jan Hubicka  <hubicka@ucw.cz>
13282
13283         * ipa-inline.c (edge_badness): Revert accidental checkin.
13284
13285 2018-01-09  Jan Hubicka  <hubicka@ucw.cz>
13286
13287         PR ipa/80763
13288         * ipa-comdats.c (set_comdat_group): Only set comdat group of real
13289         symbols; not inline clones.
13290
13291 2018-01-09  Jakub Jelinek  <jakub@redhat.com>
13292
13293         PR target/83507
13294         * modulo-sched.c (schedule_reg_moves): Punt if we'd need to move
13295         hard registers.  Formatting fixes.
13296
13297         PR preprocessor/83722
13298         * gcc.c (try_generate_repro): Pass
13299         &temp_stderr_files[RETRY_ICE_ATTEMPTS - 1] rather than
13300         &temp_stdout_files[RETRY_ICE_ATTEMPTS - 1] as last argument to
13301         do_report_bug.
13302
13303 2018-01-08  Monk Chiang  <sh.chiang04@gmail.com>
13304             Kito Cheng  <kito.cheng@gmail.com>
13305
13306         * config/riscv/riscv.c (machine_function::is_leaf): Remove field.
13307         (riscv_leaf_function_p): Delete.
13308         (riscv_function_ok_for_sibcall): Return false when TARGET_SAVE_RESTORE.
13309
13310 2018-01-08  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
13311
13312         * config/rs6000/rs6000-string.c (do_load_for_compare_from_addr): New
13313         function.
13314         (do_ifelse): New function.
13315         (do_isel): New function.
13316         (do_sub3): New function.
13317         (do_add3): New function.
13318         (do_load_mask_compare): New function.
13319         (do_overlap_load_compare): New function.
13320         (expand_compare_loop): New function.
13321         (expand_block_compare): Call expand_compare_loop() when appropriate.
13322         * config/rs6000/rs6000.opt (-mblock-compare-inline-limit): Change
13323         option description.
13324         (-mblock-compare-inline-loop-limit): New option.
13325
13326 2018-01-08  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
13327
13328         PR target/83677
13329         * config/rs6000/altivec.md (*altivec_vpermr_<mode>_internal):
13330         Reverse order of second and third operands in first alternative.
13331         * config/rs6000/rs6000.c (rs6000_expand_vector_set): Reverse order
13332         of first and second elements in UNSPEC_VPERMR vector.
13333         (altivec_expand_vec_perm_le): Likewise.
13334
13335 2018-01-08  Jeff Law  <law@redhat.com>
13336
13337         PR rtl-optimizatin/81308
13338         * tree-switch-conversion.c (cfg_altered): New file scoped static.
13339         (process_switch): If group_case_labels makes a change, then set
13340         cfg_altered.
13341         (pass_convert_switch::execute): If a switch is converted, then
13342         set cfg_altered.  Return TODO_cfg_cleanup if cfg_altered is true.
13343
13344         PR rtl-optimization/81308
13345         * recog.c (split_all_insns): Conditionally cleanup the CFG after
13346         splitting insns.
13347
13348 2018-01-08  Vidya Praveen  <vidyapraveen@arm.com>
13349
13350         PR target/83663 - Revert r255946
13351         * config/aarch64/aarch64.c (aarch64_expand_vector_init): Modify code
13352         generation for cases where splatting a value is not useful.
13353         * simplify-rtx.c (simplify_ternary_operation): Simplify vec_merge
13354         across a vec_duplicate and a paradoxical subreg forming a vector
13355         mode to a vec_concat.
13356
13357 2018-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
13358
13359         * config/arm/t-aprofile (MULTILIB_MATCHES): Add mapping rules for
13360         -march=armv8.3-a variants.
13361         * config/arm/t-multilib: Likewise.
13362         * config/arm/t-arm-elf: Likewise.  Handle dotprod extension.
13363
13364 2018-01-08  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
13365
13366         * config/rs6000/rs6000.md (cceq_ior_compare): Remove * so I can use it
13367         to generate rtl.
13368         (cceq_ior_compare_complement): Give it a name so I can use it, and
13369         change boolean_or_operator predicate to boolean_operator so it can
13370         be used to generate a crand.
13371         (eqne): New code iterator.
13372         (bd/bd_neg): New code_attrs.
13373         (<bd>_<mode>): New name for ctr<mode>_internal[12] now combined into
13374         a single define_insn.
13375         (<bd>tf_<mode>): A new insn pattern for the conditional form branch
13376         decrement (bdnzt/bdnzf/bdzt/bdzf).
13377         * config/rs6000/rs6000.c (rs6000_legitimate_combined_insn): Updated
13378         with the new names of the branch decrement patterns, and added the
13379         names of the branch decrement conditional patterns.
13380
13381 2018-01-08  Richard Biener  <rguenther@suse.de>
13382
13383         PR tree-optimization/83563
13384         * graphite.c (canonicalize_loop_closed_ssa_form): Reset the SCEV
13385         cache.
13386
13387 2018-01-08  Richard Biener  <rguenther@suse.de>
13388
13389         PR middle-end/83713
13390         * convert.c (do_narrow): Properly guard TYPE_OVERFLOW_WRAPS checks.
13391
13392 2018-01-08  Richard Biener  <rguenther@suse.de>
13393
13394         PR tree-optimization/83685
13395         * tree-ssa-pre.c (create_expression_by_pieces): Do not insert
13396         references to abnormals.
13397
13398 2018-01-08  Richard Biener  <rguenther@suse.de>
13399
13400         PR lto/83719
13401         * dwarf2out.c (output_indirect_strings): Handle empty
13402         skeleton_debug_str_hash.
13403         (dwarf2out_early_finish): Index strings for -gsplit-dwarf.
13404
13405 2018-01-08  Claudiu Zissulescu  <claziss@synopsys.com>
13406
13407         * config/arc/arc.c (TARGET_TRAMPOLINE_ADJUST_ADDRESS): Delete.
13408         (emit_store_direct): Likewise.
13409         (arc_trampoline_adjust_address): Likewise.
13410         (arc_asm_trampoline_template): New function.
13411         (arc_initialize_trampoline): Use asm_trampoline_template.
13412         (TARGET_ASM_TRAMPOLINE_TEMPLATE): Define.
13413         * config/arc/arc.h (TRAMPOLINE_SIZE): Adjust to 16.
13414         * config/arc/arc.md (flush_icache): Delete pattern.
13415
13416 2018-01-08  Claudiu Zissulescu  <claziss@synopsys.com>
13417
13418         * config/arc/arc-c.def (__ARC_UNALIGNED__): New define.
13419         * config/arc/arc.h (STRICT_ALIGNMENT): Control this macro using
13420         munaligned-access.
13421
13422 2018-01-08  Sebastian Huber  <sebastian.huber@embedded-brains.de>
13423
13424         PR target/83681
13425         * config/epiphany/epiphany.h (make_pass_mode_switch_use): Guard
13426         by not USED_FOR_TARGET.
13427         (make_pass_resolve_sw_modes): Likewise.
13428
13429 2018-01-08  Sebastian Huber  <sebastian.huber@embedded-brains.de>
13430
13431         * config/nios2/nios2.h (nios2_section_threshold): Guard by not
13432         USED_FOR_TARGET.
13433
13434 2018-01-08  Richard Biener  <rguenther@suse.de>
13435
13436         PR middle-end/83580
13437         * tree-data-ref.c (split_constant_offset): Remove STRIP_NOPS.
13438
13439 2018-01-08  Richard Biener  <rguenther@suse.de>
13440
13441         PR middle-end/83517
13442         * match.pd ((t * 2) / 2) -> t): Add missing :c.
13443
13444 2018-01-06  Aldy Hernandez  <aldyh@redhat.com>
13445
13446         PR middle-end/81897
13447         * tree-ssa-uninit.c (compute_control_dep_chain): Do not bail on
13448         basic blocks with a small number of successors.
13449         (convert_control_dep_chain_into_preds): Improve handling of
13450         forwarder blocks.
13451         (dump_predicates): Split apart into...
13452         (dump_pred_chain): ...here...
13453         (dump_pred_info): ...and here.
13454         (can_one_predicate_be_invalidated_p): Add debugging printfs.
13455         (can_chain_union_be_invalidated_p): Improve check for invalidation
13456         of paths.
13457         (uninit_uses_cannot_happen): Avoid unnecessary if
13458         convert_control_dep_chain_into_preds yielded nothing.
13459
13460 2018-01-06  Martin Sebor  <msebor@redhat.com>
13461
13462         PR tree-optimization/83640
13463         * gimple-ssa-warn-restrict.c (builtin_access::builtin_access): Avoid
13464         subtracting negative offset from size.
13465         (builtin_access::overlap): Adjust offset bounds of the access to fall
13466         within the size of the object if possible.
13467
13468 2018-01-06  Richard Sandiford  <richard.sandiford@linaro.org>
13469
13470         PR rtl-optimization/83699
13471         * expmed.c (extract_bit_field_1): Restrict the vector usage of
13472         extract_bit_field_as_subreg to cases in which the extracted
13473         value is also a vector.
13474
13475         * lra-constraints.c (process_alt_operands): Test for the equivalence
13476         substitutions when detecting a possible reload cycle.
13477
13478 2018-01-06  Jakub Jelinek  <jakub@redhat.com>
13479
13480         PR debug/83480
13481         * toplev.c (process_options): Don't enable debug_nonbind_markers_p
13482         by default if flag_selective_schedling{,2}.  Formatting fixes.
13483
13484         PR rtl-optimization/83682
13485         * rtl.h (const_vec_duplicate_p): Only return true for VEC_DUPLICATE
13486         if it has non-VECTOR_MODE element mode.
13487         (vec_duplicate_p): Likewise.
13488
13489         PR middle-end/83694
13490         * cfgexpand.c (expand_debug_expr): Punt if mode1 is VOIDmode
13491         and bitsize might be greater than MAX_BITSIZE_MODE_ANY_INT.
13492
13493 2018-01-05  Jakub Jelinek  <jakub@redhat.com>
13494
13495         PR target/83604
13496         * config/i386/i386-builtin.def
13497         (__builtin_ia32_vgf2p8affineinvqb_v64qi,
13498         __builtin_ia32_vgf2p8affineqb_v64qi, __builtin_ia32_vgf2p8mulb_v64qi):
13499         Require also OPTION_MASK_ISA_AVX512F in addition to
13500         OPTION_MASK_ISA_GFNI.
13501         (__builtin_ia32_vgf2p8affineinvqb_v16qi_mask,
13502         __builtin_ia32_vgf2p8affineqb_v16qi_mask): Require
13503         OPTION_MASK_ISA_AVX512VL instead of OPTION_MASK_ISA_SSE in addition
13504         to OPTION_MASK_ISA_GFNI.
13505         (__builtin_ia32_vgf2p8mulb_v32qi_mask): Require
13506         OPTION_MASK_ISA_AVX512VL in addition to OPTION_MASK_ISA_GFNI and
13507         OPTION_MASK_ISA_AVX512BW.
13508         (__builtin_ia32_vgf2p8mulb_v16qi_mask): Require
13509         OPTION_MASK_ISA_AVX512VL instead of OPTION_MASK_ISA_AVX512BW in
13510         addition to OPTION_MASK_ISA_GFNI.
13511         (__builtin_ia32_vgf2p8affineinvqb_v16qi,
13512         __builtin_ia32_vgf2p8affineqb_v16qi, __builtin_ia32_vgf2p8mulb_v16qi):
13513         Require OPTION_MASK_ISA_SSE2 instead of OPTION_MASK_ISA_SSE in addition
13514         to OPTION_MASK_ISA_GFNI.
13515         * config/i386/i386.c (def_builtin): Change to builtin isa/isa2 being
13516         a requirement for all ISAs rather than any of them with a few
13517         exceptions.
13518         (ix86_add_new_builtins): Clear OPTION_MASK_ISA_64BIT from isa before
13519         processing.
13520         (ix86_expand_builtin): Require all ISAs from builtin's isa and isa2
13521         bitmasks to be enabled with 3 exceptions, instead of requiring any
13522         enabled ISA with lots of exceptions.
13523         * config/i386/sse.md (vgf2p8affineinvqb_<mode><mask_name>,
13524         vgf2p8affineqb_<mode><mask_name>, vgf2p8mulb_<mode><mask_name>):
13525         Change avx512bw in isa attribute to avx512f.
13526         * config/i386/sgxintrin.h: Add license boilerplate.
13527         * config/i386/vaesintrin.h: Likewise.  Fix macro spelling __AVX512F
13528         to __AVX512F__ and __AVX512VL to __AVX512VL__.
13529         (_mm256_aesdec_epi128, _mm256_aesdeclast_epi128, _mm256_aesenc_epi128,
13530         _mm256_aesenclast_epi128): Enable temporarily avx if __AVX__ is not
13531         defined.
13532         * config/i386/gfniintrin.h (_mm_gf2p8mul_epi8,
13533         _mm_gf2p8affineinv_epi64_epi8, _mm_gf2p8affine_epi64_epi8): Enable
13534         temporarily sse2 rather than sse if not enabled already.
13535
13536         PR target/83604
13537         * config/i386/sse.md (VI248_VLBW): Rename to ...
13538         (VI248_AVX512VL): ... this.  Don't guard V32HI with TARGET_AVX512BW.
13539         (vpshrd_<mode><mask_name>, vpshld_<mode><mask_name>,
13540         vpshrdv_<mode>, vpshrdv_<mode>_mask, vpshrdv_<mode>_maskz,
13541         vpshrdv_<mode>_maskz_1, vpshldv_<mode>, vpshldv_<mode>_mask,
13542         vpshldv_<mode>_maskz, vpshldv_<mode>_maskz_1): Use VI248_AVX512VL
13543         mode iterator instead of VI248_VLBW.
13544
13545 2018-01-05  Jan Hubicka  <hubicka@ucw.cz>
13546
13547         * ipa-fnsummary.c (record_modified_bb_info): Add OP.
13548         (record_modified): Skip clobbers; add debug output.
13549         (param_change_prob): Use sreal frequencies.
13550
13551 2018-01-05  Richard Sandiford  <richard.sandiford@linaro.org>
13552
13553         * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Don't
13554         punt for user-aligned variables.
13555
13556 2018-01-05  Richard Sandiford  <richard.sandiford@linaro.org>
13557
13558         * tree-chrec.c (chrec_contains_symbols): Return true for
13559         POLY_INT_CST.
13560
13561 2018-01-05  Sudakshina Das  <sudi.das@arm.com>
13562
13563         PR target/82439
13564         * simplify-rtx.c (simplify_relational_operation_1): Add simplifications
13565         of (x|y) == x for BICS pattern.
13566
13567 2018-01-05  Jakub Jelinek  <jakub@redhat.com>
13568
13569         PR tree-optimization/83605
13570         * gimple-ssa-strength-reduction.c: Include tree-eh.h.
13571         (find_candidates_dom_walker::before_dom_children): Ignore stmts that
13572         can throw.
13573
13574 2018-01-05  Sebastian Huber  <sebastian.huber@embedded-brains.de>
13575
13576         * config.gcc (epiphany-*-elf*): Add (epiphany-*-rtems*) configuration.
13577         * config/epiphany/rtems.h: New file.
13578
13579 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
13580             Uros Bizjak  <ubizjak@gmail.com>
13581
13582         PR target/83554
13583         * config/i386/i386.md (*<rotate_insn>hi3_1 splitter): Use
13584         QIreg_operand instead of register_operand predicate.
13585         * config/i386/i386.c (ix86_rop_should_change_byte_p,
13586         set_rop_modrm_reg_bits, ix86_mitigate_rop): Use -mmitigate-rop in
13587         comments instead of -fmitigate[-_]rop.
13588
13589 2018-01-04  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
13590
13591         PR bootstrap/81926
13592         * cgraphunit.c (symbol_table::compile): Switch to text_section
13593         before calling assembly_start debug hook.
13594         * run-rtl-passes.c (run_rtl_passes): Likewise.
13595         Include output.h.
13596
13597 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
13598
13599         * tree-vrp.c (extract_range_from_binary_expr_1): Check
13600         range_int_cst_p rather than !symbolic_range_p before calling
13601         extract_range_from_multiplicative_op_1.
13602
13603 2018-01-04  Jeff Law  <law@redhat.com>
13604
13605         * tree-ssa-math-opts.c (execute_cse_reciprocals_1): Remove
13606         redundant test in assertion.
13607
13608 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
13609
13610         * doc/rtl.texi: Document machine_mode wrapper classes.
13611
13612 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
13613
13614         * fold-const.c (fold_ternary_loc): Check tree_fits_uhwi_p before
13615         using tree_to_uhwi.
13616
13617 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
13618
13619         * tree-ssa-forwprop.c (is_combined_permutation_identity): Allow
13620         the VEC_PERM_EXPR fold to fail.
13621
13622 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
13623
13624         PR debug/83585
13625         * bb-reorder.c (insert_section_boundary_note): Set has_bb_partition
13626         to switched_sections.
13627
13628 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
13629
13630         PR target/83680
13631         * config/arm/arm.c (arm_vectorize_vec_perm_const): Fix inverted
13632         test for d.testing.
13633
13634 2018-01-04  Peter Bergner  <bergner@vnet.ibm.com>
13635
13636         PR target/83387
13637         * config/rs6000/rs6000.c (rs6000_discover_homogeneous_aggregate): Do not
13638         allow arguments in FP registers if TARGET_HARD_FLOAT is false.
13639
13640 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
13641
13642         PR debug/83666
13643         * cfgexpand.c (expand_debug_expr) <case BIT_FIELD_REF>: Punt if mode
13644         is BLKmode and bitpos not zero or mode change is needed.
13645
13646 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
13647
13648         PR target/83675
13649         * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): Require
13650         TARGET_VIS2.
13651
13652 2018-01-04  Uros Bizjak  <ubizjak@gmail.com>
13653
13654         PR target/83628
13655         * config/alpha/alpha.md (*sadd<modesuffix>): Use ASHIFT
13656         instead of MULT rtx.  Update all corresponding splitters.
13657         (*saddl_se): Ditto.
13658         (*ssub<modesuffix>): Ditto.
13659         (*ssubl_se): Ditto.
13660         (*cmp_sadd_di): Update split patterns.
13661         (*cmp_sadd_si): Ditto.
13662         (*cmp_sadd_sidi): Ditto.
13663         (*cmp_ssub_di): Ditto.
13664         (*cmp_ssub_si): Ditto.
13665         (*cmp_ssub_sidi): Ditto.
13666         * config/alpha/predicates.md (const23_operand): New predicate.
13667         * config/alpha/alpha.c (alpha_rtx_costs) [PLUS, MINUS]:
13668         Look for ASHIFT, not MULT inner operand.
13669         (alpha_split_conditional_move): Update for *sadd<modesuffix> change.
13670
13671 2018-01-04  Martin Liska  <mliska@suse.cz>
13672
13673         PR gcov-profile/83669
13674         * gcov.c (output_intermediate_file): Add version to intermediate
13675         gcov file.
13676         * doc/gcov.texi: Document new field 'version' in intermediate
13677         file format. Fix location of '-k' option of gcov command.
13678
13679 2018-01-04  Martin Liska  <mliska@suse.cz>
13680
13681         PR ipa/82352
13682         * ipa-icf.c (sem_function::merge): Do not cross comdat boundary.
13683
13684 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
13685
13686         * gimple-ssa-sprintf.c (parse_directive): Cast second dir.len to uhwi.
13687
13688 2018-01-03  Martin Sebor  <msebor@redhat.com>
13689
13690         PR tree-optimization/83655
13691         * gimple-ssa-warn-restrict.c (wrestrict_dom_walker::check_call): Avoid
13692         checking calls with invalid arguments.
13693
13694 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13695
13696         * tree-vect-stmts.c (vect_get_store_rhs): New function.
13697         (vectorizable_mask_load_store): Delete.
13698         (vectorizable_call): Return false for masked loads and stores.
13699         (vectorizable_store): Handle IFN_MASK_STORE.  Use vect_get_store_rhs
13700         instead of gimple_assign_rhs1.
13701         (vectorizable_load): Handle IFN_MASK_LOAD.
13702         (vect_transform_stmt): Don't set is_store for call_vec_info_type.
13703
13704 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13705
13706         * tree-vect-stmts.c (vect_build_gather_load_calls): New function,
13707         split out from..,
13708         (vectorizable_mask_load_store): ...here.
13709         (vectorizable_load): ...and here.
13710
13711 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13712
13713         * tree-vect-stmts.c (vect_build_all_ones_mask)
13714         (vect_build_zero_merge_argument): New functions, split out from...
13715         (vectorizable_load): ...here.
13716
13717 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13718
13719         * tree-vect-stmts.c (vect_check_store_rhs): New function,
13720         split out from...
13721         (vectorizable_mask_load_store): ...here.
13722         (vectorizable_store): ...and here.
13723
13724 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13725
13726         * tree-vect-stmts.c (vect_check_load_store_mask): New function,
13727         split out from...
13728         (vectorizable_mask_load_store): ...here.
13729
13730 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13731
13732         * tree-vectorizer.h (vec_load_store_type): Moved from tree-vec-stmts.c
13733         (vect_model_store_cost): Take a vec_load_store_type instead of a
13734         vect_def_type.
13735         * tree-vect-stmts.c (vec_load_store_type): Move to tree-vectorizer.h.
13736         (vect_model_store_cost): Take a vec_load_store_type instead of a
13737         vect_def_type.
13738         (vectorizable_mask_load_store): Update accordingly.
13739         (vectorizable_store): Likewise.
13740         * tree-vect-slp.c (vect_analyze_slp_cost_1): Update accordingly.
13741
13742 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13743
13744         * tree-vect-loop.c (vect_transform_loop): Stub out scalar
13745         IFN_MASK_LOAD calls here rather than...
13746         * tree-vect-stmts.c (vectorizable_mask_load_store): ...here.
13747
13748 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13749             Alan Hayward  <alan.hayward@arm.com>
13750             David Sherwood  <david.sherwood@arm.com>
13751
13752         * expmed.c (extract_bit_field_1): For vector extracts,
13753         fall back to extract_bit_field_as_subreg if vec_extract
13754         isn't available.
13755
13756 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13757             Alan Hayward  <alan.hayward@arm.com>
13758             David Sherwood  <david.sherwood@arm.com>
13759
13760         * lra-spills.c (pseudo_reg_slot_compare): Sort slots by whether
13761         they are variable or constant sized.
13762         (assign_stack_slot_num_and_sort_pseudos): Don't reuse variable-sized
13763         slots for constant-sized data.
13764
13765 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13766             Alan Hayward  <alan.hayward@arm.com>
13767             David Sherwood  <david.sherwood@arm.com>
13768
13769         * tree-vect-patterns.c (vect_recog_mask_conversion_pattern): When
13770         handling COND_EXPRs with boolean comparisons, try to find a better
13771         basis for the mask type than the boolean itself.
13772
13773 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13774
13775         * doc/rtl.texi (MAX_BITSIZE_MODE_ANY_MODE): Describe how the default
13776         is calculated and how it can be overridden.
13777         * genmodes.c (max_bitsize_mode_any_mode): New variable.
13778         (create_modes): Initialize it from MAX_BITSIZE_MODE_ANY_MODE,
13779         if defined.
13780         (emit_max_int): Use it to set the output MAX_BITSIZE_MODE_ANY_MODE,
13781         if nonzero.
13782
13783 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13784             Alan Hayward  <alan.hayward@arm.com>
13785             David Sherwood  <david.sherwood@arm.com>
13786
13787         * config/aarch64/aarch64-protos.h (aarch64_output_simd_mov_immediate):
13788         Remove the mode argument.
13789         (aarch64_simd_valid_immediate): Remove the mode and inverse
13790         arguments.
13791         * config/aarch64/iterators.md (bitsize): New iterator.
13792         * config/aarch64/aarch64-simd.md (*aarch64_simd_mov<mode>, and<mode>3)
13793         (ior<mode>3): Update calls to aarch64_output_simd_mov_immediate.
13794         * config/aarch64/constraints.md (Do, Db, Dn): Update calls to
13795         aarch64_simd_valid_immediate.
13796         * config/aarch64/predicates.md (aarch64_reg_or_orr_imm): Likewise.
13797         (aarch64_reg_or_bic_imm): Likewise.
13798         * config/aarch64/aarch64.c (simd_immediate_info): Replace mvn
13799         with an insn_type enum and msl with a modifier_type enum.
13800         Replace element_width with a scalar_mode.  Change the shift
13801         to unsigned int.  Add constructors for scalar_float_mode and
13802         scalar_int_mode elements.
13803         (aarch64_vect_float_const_representable_p): Delete.
13804         (aarch64_can_const_movi_rtx_p)
13805         (aarch64_simd_scalar_immediate_valid_for_move)
13806         (aarch64_simd_make_constant): Update call to
13807         aarch64_simd_valid_immediate.
13808         (aarch64_advsimd_valid_immediate_hs): New function.
13809         (aarch64_advsimd_valid_immediate): Likewise.
13810         (aarch64_simd_valid_immediate): Remove mode and inverse
13811         arguments.  Rewrite to use the above.  Use const_vec_duplicate_p
13812         to detect duplicated constants and use aarch64_float_const_zero_rtx_p
13813         and aarch64_float_const_representable_p on the result.
13814         (aarch64_output_simd_mov_immediate): Remove mode argument.
13815         Update call to aarch64_simd_valid_immediate and use of
13816         simd_immediate_info.
13817         (aarch64_output_scalar_simd_mov_immediate): Update call
13818         accordingly.
13819
13820 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13821             Alan Hayward  <alan.hayward@arm.com>
13822             David Sherwood  <david.sherwood@arm.com>
13823
13824         * machmode.h (mode_precision): Prefix with CONST_MODE_PRECISION.
13825         (mode_nunits): Likewise CONST_MODE_NUNITS.
13826         * machmode.def (ADJUST_NUNITS): Document.
13827         * genmodes.c (mode_data::need_nunits_adj): New field.
13828         (blank_mode): Update accordingly.
13829         (adj_nunits): New variable.
13830         (print_maybe_const_decl): Replace CATEGORY with a NEEDS_ADJ
13831         parameter.
13832         (emit_mode_size_inline): Set need_bytesize_adj for all modes
13833         listed in adj_nunits.
13834         (emit_mode_nunits_inline): Set need_nunits_adj for all modes
13835         listed in adj_nunits.  Don't emit case statements for such modes.
13836         (emit_insn_modes_h): Emit definitions of CONST_MODE_NUNITS
13837         and CONST_MODE_PRECISION.  Make CONST_MODE_SIZE expand to
13838         nothing if adj_nunits is nonnull.
13839         (emit_mode_precision, emit_mode_nunits): Use print_maybe_const_decl.
13840         (emit_mode_unit_size, emit_mode_base_align, emit_mode_ibit)
13841         (emit_mode_fbit): Update use of print_maybe_const_decl.
13842         (emit_move_size): Likewise.  Treat the array as non-const
13843         if adj_nunits.
13844         (emit_mode_adjustments): Handle adj_nunits.
13845
13846 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13847
13848         * machmode.def (VECTOR_MODES_WITH_PREFIX): Document.
13849         * genmodes.c (VECTOR_MODES_WITH_PREFIX): New macro.
13850         (VECTOR_MODES): Use it.
13851         (make_vector_modes): Take the prefix as an argument.
13852
13853 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13854             Alan Hayward  <alan.hayward@arm.com>
13855             David Sherwood  <david.sherwood@arm.com>
13856
13857         * mode-classes.def (MODE_VECTOR_BOOL): New mode class.
13858         * machmode.h (INTEGRAL_MODE_P, VECTOR_MODE_P): Return true
13859         for MODE_VECTOR_BOOL.
13860         * machmode.def (VECTOR_BOOL_MODE): Document.
13861         * genmodes.c (VECTOR_BOOL_MODE): New macro.
13862         (make_vector_bool_mode): New function.
13863         (complete_mode, emit_mode_wider, emit_mode_adjustments): Handle
13864         MODE_VECTOR_BOOL.
13865         * lto-streamer-in.c (lto_input_mode_table): Likewise.
13866         * rtx-vector-builder.c (rtx_vector_builder::find_cached_value):
13867         Likewise.
13868         * stor-layout.c (int_mode_for_mode): Likewise.
13869         * tree.c (build_vector_type_for_mode): Likewise.
13870         * varasm.c (output_constant_pool_2): Likewise.
13871         * emit-rtl.c (init_emit_once): Make sure that CONST1_RTX (BImode) and
13872         CONSTM1_RTX (BImode) are the same thing.  Initialize const_tiny_rtx
13873         for MODE_VECTOR_BOOL.
13874         * expr.c (expand_expr_real_1): Use VECTOR_MODE_P instead of a list
13875         of mode class checks.
13876         * tree-vect-generic.c (expand_vector_operation): Use VECTOR_MODE_P
13877         instead of a list of mode class checks.
13878         (expand_vector_scalar_condition): Likewise.
13879         (type_for_widest_vector_mode): Handle BImode as an inner mode.
13880
13881 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13882             Alan Hayward  <alan.hayward@arm.com>
13883             David Sherwood  <david.sherwood@arm.com>
13884
13885         * machmode.h (mode_size): Change from unsigned short to
13886         poly_uint16_pod.
13887         (mode_to_bytes): Return a poly_uint16 rather than an unsigned short.
13888         (GET_MODE_SIZE): Return a constant if ONLY_FIXED_SIZE_MODES,
13889         or if measurement_type is not polynomial.
13890         (fixed_size_mode::includes_p): Check for constant-sized modes.
13891         * genmodes.c (emit_mode_size_inline): Make mode_size_inline
13892         return a poly_uint16 rather than an unsigned short.
13893         (emit_mode_size): Change the type of mode_size from unsigned short
13894         to poly_uint16_pod.  Use ZERO_COEFFS for the initializer.
13895         (emit_mode_adjustments): Cope with polynomial vector sizes.
13896         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
13897         for GET_MODE_SIZE.
13898         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
13899         for GET_MODE_SIZE.
13900         * auto-inc-dec.c (try_merge): Treat GET_MODE_SIZE as polynomial.
13901         * builtins.c (expand_ifn_atomic_compare_exchange_into_call): Likewise.
13902         * caller-save.c (setup_save_areas): Likewise.
13903         (replace_reg_with_saved_mem): Likewise.
13904         * calls.c (emit_library_call_value_1): Likewise.
13905         * combine-stack-adj.c (combine_stack_adjustments_for_block): Likewise.
13906         * combine.c (simplify_set, make_extraction, simplify_shift_const_1)
13907         (gen_lowpart_for_combine): Likewise.
13908         * convert.c (convert_to_integer_1): Likewise.
13909         * cse.c (equiv_constant, cse_insn): Likewise.
13910         * cselib.c (autoinc_split, cselib_hash_rtx): Likewise.
13911         (cselib_subst_to_values): Likewise.
13912         * dce.c (word_dce_process_block): Likewise.
13913         * df-problems.c (df_word_lr_mark_ref): Likewise.
13914         * dwarf2cfi.c (init_one_dwarf_reg_size): Likewise.
13915         * dwarf2out.c (multiple_reg_loc_descriptor, mem_loc_descriptor)
13916         (concat_loc_descriptor, concatn_loc_descriptor, loc_descriptor)
13917         (rtl_for_decl_location): Likewise.
13918         * emit-rtl.c (gen_highpart, widen_memory_access): Likewise.
13919         * expmed.c (extract_bit_field_1, extract_integral_bit_field): Likewise.
13920         * expr.c (emit_group_load_1, clear_storage_hints): Likewise.
13921         (emit_move_complex, emit_move_multi_word, emit_push_insn): Likewise.
13922         (expand_expr_real_1): Likewise.
13923         * function.c (assign_parm_setup_block_p, assign_parm_setup_block)
13924         (pad_below): Likewise.
13925         * gimple-fold.c (optimize_atomic_compare_exchange_p): Likewise.
13926         * gimple-ssa-store-merging.c (rhs_valid_for_store_merging_p): Likewise.
13927         * ira.c (get_subreg_tracking_sizes): Likewise.
13928         * ira-build.c (ira_create_allocno_objects): Likewise.
13929         * ira-color.c (coalesced_pseudo_reg_slot_compare): Likewise.
13930         (ira_sort_regnos_for_alter_reg): Likewise.
13931         * ira-costs.c (record_operand_costs): Likewise.
13932         * lower-subreg.c (interesting_mode_p, simplify_gen_subreg_concatn)
13933         (resolve_simple_move): Likewise.
13934         * lra-constraints.c (get_reload_reg, operands_match_p): Likewise.
13935         (process_addr_reg, simplify_operand_subreg, curr_insn_transform)
13936         (lra_constraints): Likewise.
13937         (CONST_POOL_OK_P): Reject variable-sized modes.
13938         * lra-spills.c (slot, assign_mem_slot, pseudo_reg_slot_compare)
13939         (add_pseudo_to_slot, lra_spill): Likewise.
13940         * omp-low.c (omp_clause_aligned_alignment): Likewise.
13941         * optabs-query.c (get_best_extraction_insn): Likewise.
13942         * optabs-tree.c (expand_vec_cond_expr_p): Likewise.
13943         * optabs.c (expand_vec_perm_var, expand_vec_cond_expr): Likewise.
13944         (expand_mult_highpart, valid_multiword_target_p): Likewise.
13945         * recog.c (offsettable_address_addr_space_p): Likewise.
13946         * regcprop.c (maybe_mode_change): Likewise.
13947         * reginfo.c (choose_hard_reg_mode, record_subregs_of_mode): Likewise.
13948         * regrename.c (build_def_use): Likewise.
13949         * regstat.c (dump_reg_info): Likewise.
13950         * reload.c (complex_word_subreg_p, push_reload, find_dummy_reload)
13951         (find_reloads, find_reloads_subreg_address): Likewise.
13952         * reload1.c (eliminate_regs_1): Likewise.
13953         * rtlanal.c (for_each_inc_dec_find_inc_dec, rtx_cost): Likewise.
13954         * simplify-rtx.c (avoid_constant_pool_reference): Likewise.
13955         (simplify_binary_operation_1, simplify_subreg): Likewise.
13956         * targhooks.c (default_function_arg_padding): Likewise.
13957         (default_hard_regno_nregs, default_class_max_nregs): Likewise.
13958         * tree-cfg.c (verify_gimple_assign_binary): Likewise.
13959         (verify_gimple_assign_ternary): Likewise.
13960         * tree-inline.c (estimate_move_cost): Likewise.
13961         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
13962         * tree-ssa-loop-ivopts.c (add_autoinc_candidates): Likewise.
13963         (get_address_cost_ainc): Likewise.
13964         * tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Likewise.
13965         (vect_supportable_dr_alignment): Likewise.
13966         * tree-vect-loop.c (vect_determine_vectorization_factor): Likewise.
13967         (vectorizable_reduction): Likewise.
13968         * tree-vect-stmts.c (vectorizable_assignment, vectorizable_shift)
13969         (vectorizable_operation, vectorizable_load): Likewise.
13970         * tree.c (build_same_sized_truth_vector_type): Likewise.
13971         * valtrack.c (cleanup_auto_inc_dec): Likewise.
13972         * var-tracking.c (emit_note_insn_var_location): Likewise.
13973         * config/arc/arc.h (ASM_OUTPUT_CASE_END): Use as_a <scalar_int_mode>.
13974         (ADDR_VEC_ALIGN): Likewise.
13975
13976 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13977             Alan Hayward  <alan.hayward@arm.com>
13978             David Sherwood  <david.sherwood@arm.com>
13979
13980         * machmode.h (mode_to_bits): Return a poly_uint16 rather than an
13981         unsigned short.
13982         (GET_MODE_BITSIZE): Return a constant if ONLY_FIXED_SIZE_MODES,
13983         or if measurement_type is polynomial.
13984         * calls.c (shift_return_value): Treat GET_MODE_BITSIZE as polynomial.
13985         * combine.c (make_extraction): Likewise.
13986         * dse.c (find_shift_sequence): Likewise.
13987         * dwarf2out.c (mem_loc_descriptor): Likewise.
13988         * expmed.c (store_integral_bit_field, extract_bit_field_1): Likewise.
13989         (extract_bit_field, extract_low_bits): Likewise.
13990         * expr.c (convert_move, convert_modes, emit_move_insn_1): Likewise.
13991         (optimize_bitfield_assignment_op, expand_assignment): Likewise.
13992         (store_expr_with_bounds, store_field, expand_expr_real_1): Likewise.
13993         * fold-const.c (optimize_bit_field_compare, merge_ranges): Likewise.
13994         * gimple-fold.c (optimize_atomic_compare_exchange_p): Likewise.
13995         * reload.c (find_reloads): Likewise.
13996         * reload1.c (alter_reg): Likewise.
13997         * stor-layout.c (bitwise_mode_for_mode, compute_record_mode): Likewise.
13998         * targhooks.c (default_secondary_memory_needed_mode): Likewise.
13999         * tree-if-conv.c (predicate_mem_writes): Likewise.
14000         * tree-ssa-strlen.c (handle_builtin_memcmp): Likewise.
14001         * tree-vect-patterns.c (adjust_bool_pattern): Likewise.
14002         * tree-vect-stmts.c (vectorizable_simd_clone_call): Likewise.
14003         * valtrack.c (dead_debug_insert_temp): Likewise.
14004         * varasm.c (mergeable_constant_section): Likewise.
14005         * config/sh/sh.h (LOCAL_ALIGNMENT): Use as_a <fixed_size_mode>.
14006
14007 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14008             Alan Hayward  <alan.hayward@arm.com>
14009             David Sherwood  <david.sherwood@arm.com>
14010
14011         * expr.c (expand_assignment): Cope with polynomial mode sizes
14012         when assigning to a CONCAT.
14013
14014 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14015             Alan Hayward  <alan.hayward@arm.com>
14016             David Sherwood  <david.sherwood@arm.com>
14017
14018         * machmode.h (mode_precision): Change from unsigned short to
14019         poly_uint16_pod.
14020         (mode_to_precision): Return a poly_uint16 rather than an unsigned
14021         short.
14022         (GET_MODE_PRECISION): Return a constant if ONLY_FIXED_SIZE_MODES,
14023         or if measurement_type is not polynomial.
14024         (HWI_COMPUTABLE_MODE_P): Turn into a function.  Optimize the case
14025         in which the mode is already known to be a scalar_int_mode.
14026         * genmodes.c (emit_mode_precision): Change the type of mode_precision
14027         from unsigned short to poly_uint16_pod.  Use ZERO_COEFFS for the
14028         initializer.
14029         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
14030         for GET_MODE_PRECISION.
14031         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
14032         for GET_MODE_PRECISION.
14033         * combine.c (update_rsp_from_reg_equal): Treat GET_MODE_PRECISION
14034         as polynomial.
14035         (try_combine, find_split_point, combine_simplify_rtx): Likewise.
14036         (expand_field_assignment, make_extraction): Likewise.
14037         (make_compound_operation_int, record_dead_and_set_regs_1): Likewise.
14038         (get_last_value): Likewise.
14039         * convert.c (convert_to_integer_1): Likewise.
14040         * cse.c (cse_insn): Likewise.
14041         * expr.c (expand_expr_real_1): Likewise.
14042         * lra-constraints.c (simplify_operand_subreg): Likewise.
14043         * optabs-query.c (can_atomic_load_p): Likewise.
14044         * optabs.c (expand_atomic_load): Likewise.
14045         (expand_atomic_store): Likewise.
14046         * ree.c (combine_reaching_defs): Likewise.
14047         * rtl.h (partial_subreg_p, paradoxical_subreg_p): Likewise.
14048         * rtlanal.c (nonzero_bits1, lsb_bitfield_op_p): Likewise.
14049         * tree.h (type_has_mode_precision_p): Likewise.
14050         * ubsan.c (instrument_si_overflow): Likewise.
14051
14052 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14053             Alan Hayward  <alan.hayward@arm.com>
14054             David Sherwood  <david.sherwood@arm.com>
14055
14056         * tree.h (TYPE_VECTOR_SUBPARTS): Turn into a function and handle
14057         polynomial numbers of units.
14058         (SET_TYPE_VECTOR_SUBPARTS): Likewise.
14059         (valid_vector_subparts_p): New function.
14060         (build_vector_type): Remove temporary shim and take the number
14061         of units as a poly_uint64 rather than an int.
14062         (build_opaque_vector_type): Take the number of units as a
14063         poly_uint64 rather than an int.
14064         * tree.c (build_vector_from_ctor): Handle polynomial
14065         TYPE_VECTOR_SUBPARTS.
14066         (type_hash_canon_hash, type_cache_hasher::equal): Likewise.
14067         (uniform_vector_p, vector_type_mode, build_vector): Likewise.
14068         (build_vector_from_val): If the number of units is variable,
14069         use build_vec_duplicate_cst for constant operands and
14070         VEC_DUPLICATE_EXPR otherwise.
14071         (make_vector_type): Remove temporary is_constant ().
14072         (build_vector_type, build_opaque_vector_type): Take the number of
14073         units as a poly_uint64 rather than an int.
14074         (check_vector_cst): Handle polynomial TYPE_VECTOR_SUBPARTS and
14075         VECTOR_CST_NELTS.
14076         * cfgexpand.c (expand_debug_expr): Likewise.
14077         * expr.c (count_type_elements, categorize_ctor_elements_1): Likewise.
14078         (store_constructor, expand_expr_real_1): Likewise.
14079         (const_scalar_mask_from_tree): Likewise.
14080         * fold-const-call.c (fold_const_reduction): Likewise.
14081         * fold-const.c (const_binop, const_unop, fold_convert_const): Likewise.
14082         (operand_equal_p, fold_vec_perm, fold_ternary_loc): Likewise.
14083         (native_encode_vector, vec_cst_ctor_to_array): Likewise.
14084         (fold_relational_const): Likewise.
14085         (native_interpret_vector): Likewise.  Change the size from an
14086         int to an unsigned int.
14087         * gimple-fold.c (gimple_fold_stmt_to_constant_1): Handle polynomial
14088         TYPE_VECTOR_SUBPARTS.
14089         (gimple_fold_indirect_ref, gimple_build_vector): Likewise.
14090         (gimple_build_vector_from_val): Use VEC_DUPLICATE_EXPR when
14091         duplicating a non-constant operand into a variable-length vector.
14092         * hsa-brig.c (hsa_op_immed::emit_to_buffer): Handle polynomial
14093         TYPE_VECTOR_SUBPARTS and VECTOR_CST_NELTS.
14094         * ipa-icf.c (sem_variable::equals): Likewise.
14095         * match.pd: Likewise.
14096         * omp-simd-clone.c (simd_clone_subparts): Likewise.
14097         * print-tree.c (print_node): Likewise.
14098         * stor-layout.c (layout_type): Likewise.
14099         * targhooks.c (default_builtin_vectorization_cost): Likewise.
14100         * tree-cfg.c (verify_gimple_comparison): Likewise.
14101         (verify_gimple_assign_binary): Likewise.
14102         (verify_gimple_assign_ternary): Likewise.
14103         (verify_gimple_assign_single): Likewise.
14104         * tree-pretty-print.c (dump_generic_node): Likewise.
14105         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
14106         (simplify_bitfield_ref, is_combined_permutation_identity): Likewise.
14107         * tree-vect-data-refs.c (vect_permute_store_chain): Likewise.
14108         (vect_grouped_load_supported, vect_permute_load_chain): Likewise.
14109         (vect_shift_permute_load_chain): Likewise.
14110         * tree-vect-generic.c (nunits_for_known_piecewise_op): Likewise.
14111         (expand_vector_condition, optimize_vector_constructor): Likewise.
14112         (lower_vec_perm, get_compute_type): Likewise.
14113         * tree-vect-loop.c (vect_determine_vectorization_factor): Likewise.
14114         (get_initial_defs_for_reduction, vect_transform_loop): Likewise.
14115         * tree-vect-patterns.c (vect_recog_bool_pattern): Likewise.
14116         (vect_recog_mask_conversion_pattern): Likewise.
14117         * tree-vect-slp.c (vect_supported_load_permutation_p): Likewise.
14118         (vect_get_constant_vectors, vect_transform_slp_perm_load): Likewise.
14119         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
14120         (get_group_load_store_type, vectorizable_mask_load_store): Likewise.
14121         (vectorizable_bswap, simd_clone_subparts, vectorizable_assignment)
14122         (vectorizable_shift, vectorizable_operation, vectorizable_store)
14123         (vectorizable_load, vect_is_simple_cond, vectorizable_comparison)
14124         (supportable_widening_operation): Likewise.
14125         (supportable_narrowing_operation): Likewise.
14126         * tree-vector-builder.c (tree_vector_builder::binary_encoded_nelts):
14127         Likewise.
14128         * varasm.c (output_constant): Likewise.
14129
14130 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14131             Alan Hayward  <alan.hayward@arm.com>
14132             David Sherwood  <david.sherwood@arm.com>
14133
14134         * tree-vect-data-refs.c (vect_permute_store_chain): Reorganize
14135         so that both the length == 3 and length != 3 cases set up their
14136         own permute vectors.  Add comments explaining why we know the
14137         number of elements is constant.
14138         (vect_permute_load_chain): Likewise.
14139
14140 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14141             Alan Hayward  <alan.hayward@arm.com>
14142             David Sherwood  <david.sherwood@arm.com>
14143
14144         * machmode.h (mode_nunits): Change from unsigned char to
14145         poly_uint16_pod.
14146         (ONLY_FIXED_SIZE_MODES): New macro.
14147         (pod_mode::measurement_type, scalar_int_mode::measurement_type)
14148         (scalar_float_mode::measurement_type, scalar_mode::measurement_type)
14149         (complex_mode::measurement_type, fixed_size_mode::measurement_type):
14150         New typedefs.
14151         (mode_to_nunits): Return a poly_uint16 rather than an unsigned short.
14152         (GET_MODE_NUNITS): Return a constant if ONLY_FIXED_SIZE_MODES,
14153         or if measurement_type is not polynomial.
14154         * genmodes.c (ZERO_COEFFS): New macro.
14155         (emit_mode_nunits_inline): Make mode_nunits_inline return a
14156         poly_uint16.
14157         (emit_mode_nunits): Change the type of mode_nunits to poly_uint16_pod.
14158         Use ZERO_COEFFS when emitting initializers.
14159         * data-streamer.h (bp_pack_poly_value): New function.
14160         (bp_unpack_poly_value): Likewise.
14161         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
14162         for GET_MODE_NUNITS.
14163         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
14164         for GET_MODE_NUNITS.
14165         * tree.c (make_vector_type): Remove temporary shim and make
14166         the real function take the number of units as a poly_uint64
14167         rather than an int.
14168         (build_vector_type_for_mode): Handle polynomial nunits.
14169         * dwarf2out.c (loc_descriptor, add_const_value_attribute): Likewise.
14170         * emit-rtl.c (const_vec_series_p_1): Likewise.
14171         (gen_rtx_CONST_VECTOR): Likewise.
14172         * fold-const.c (test_vec_duplicate_folding): Likewise.
14173         * genrecog.c (validate_pattern): Likewise.
14174         * optabs-query.c (can_vec_perm_var_p, can_mult_highpart_p): Likewise.
14175         * optabs-tree.c (expand_vec_cond_expr_p): Likewise.
14176         * optabs.c (expand_vector_broadcast, expand_binop_directly): Likewise.
14177         (shift_amt_for_vec_perm_mask, expand_vec_perm_var): Likewise.
14178         (expand_vec_cond_expr, expand_mult_highpart): Likewise.
14179         * rtlanal.c (subreg_get_info): Likewise.
14180         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
14181         (vect_grouped_load_supported): Likewise.
14182         * tree-vect-generic.c (type_for_widest_vector_mode): Likewise.
14183         * tree-vect-loop.c (have_whole_vector_shift): Likewise.
14184         * simplify-rtx.c (simplify_unary_operation_1): Likewise.
14185         (simplify_const_unary_operation, simplify_binary_operation_1)
14186         (simplify_const_binary_operation, simplify_ternary_operation)
14187         (test_vector_ops_duplicate, test_vector_ops): Likewise.
14188         (simplify_immed_subreg): Use GET_MODE_NUNITS on a fixed_size_mode
14189         instead of CONST_VECTOR_NUNITS.
14190         * varasm.c (output_constant_pool_2): Likewise.
14191         * rtx-vector-builder.c (rtx_vector_builder::build): Only include the
14192         explicit-encoded elements in the XVEC for variable-length vectors.
14193
14194 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14195
14196         * lra-constraints.c (curr_insn_transform): Use partial_subreg_p.
14197
14198 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14199             Alan Hayward  <alan.hayward@arm.com>
14200             David Sherwood  <david.sherwood@arm.com>
14201
14202         * coretypes.h (fixed_size_mode): Declare.
14203         (fixed_size_mode_pod): New typedef.
14204         * builtins.h (target_builtins::x_apply_args_mode)
14205         (target_builtins::x_apply_result_mode): Change type to
14206         fixed_size_mode_pod.
14207         * builtins.c (apply_args_size, apply_result_size, result_vector)
14208         (expand_builtin_apply_args_1, expand_builtin_apply)
14209         (expand_builtin_return): Update accordingly.
14210
14211 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14212
14213         * cse.c (hash_rtx_cb): Hash only the encoded elements.
14214         * cselib.c (cselib_hash_rtx): Likewise.
14215         * expmed.c (make_tree): Build VECTOR_CSTs directly from the
14216         CONST_VECTOR encoding.
14217
14218 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
14219             Jeff Law  <law@redhat.com>
14220
14221         PR target/83641
14222         * config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): For
14223         noreturn probe, use gen_pop instead of ix86_emit_restore_reg_using_pop,
14224         only set RTX_FRAME_RELATED_P on both the push and pop if cfa_reg is sp
14225         and add REG_CFA_ADJUST_CFA notes in that case to both insns.
14226
14227         PR target/83641
14228         * config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): Do not
14229         explicitly probe *sp in a noreturn function if there were any callee
14230         register saves or frame pointer is needed.
14231
14232 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
14233
14234         PR debug/83621
14235         * cfgexpand.c (expand_debug_expr): Return NULL if mode is
14236         BLKmode for ternary, binary or unary expressions.
14237
14238         PR debug/83645
14239         * var-tracking.c (delete_vta_debug_insn): New inline function.
14240         (delete_vta_debug_insns): Add USE_CFG argument, if true, walk just
14241         insns from get_insns () to NULL instead of each bb separately.
14242         Use delete_vta_debug_insn.  No longer static.
14243         (vt_debug_insns_local, variable_tracking_main_1): Adjust
14244         delete_vta_debug_insns callers.
14245         * rtl.h (delete_vta_debug_insns): Declare.
14246         * final.c (rest_of_handle_final): Call delete_vta_debug_insns
14247         instead of variable_tracking_main.
14248
14249 2018-01-03  Martin Sebor  <msebor@redhat.com>
14250
14251         PR tree-optimization/83603
14252         * calls.c (maybe_warn_nonstring_arg): Avoid accessing function
14253         arguments past the endof the argument list in functions declared
14254         without a prototype.
14255         * gimple-ssa-warn-restrict.c (wrestrict_dom_walker::check_call):
14256         Avoid checking when arguments are null.
14257
14258 2018-01-03  Martin Sebor  <msebor@redhat.com>
14259
14260         PR c/83559
14261         * doc/extend.texi (attribute const): Fix a typo.
14262         * ipa-pure-const.c ((warn_function_const, warn_function_pure): Avoid
14263         issuing -Wsuggest-attribute for void functions.
14264
14265 2018-01-03  Martin Sebor  <msebor@redhat.com>
14266
14267         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Use
14268         offset_int::from instead of wide_int::to_shwi.
14269         (maybe_diag_overlap): Remove assertion.
14270         Use HOST_WIDE_INT_PRINT_DEC instead of %lli.
14271         * gimple-ssa-sprintf.c (format_directive): Same.
14272         (parse_directive): Same.
14273         (sprintf_dom_walker::compute_format_length): Same.
14274         (try_substitute_return_value): Same.
14275
14276 2018-01-03  Jeff Law  <law@redhat.com>
14277
14278         PR middle-end/83654
14279         * explow.c (anti_adjust_stack_and_probe_stack_clash): Test a
14280         non-constant residual for zero at runtime and avoid probing in
14281         that case.  Reorganize code for trailing problem to mirror handling
14282         of the residual.
14283
14284 2018-01-03  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
14285
14286         PR tree-optimization/83501
14287         * tree-ssa-strlen.c (get_string_cst): New.
14288         (handle_char_store): Call get_string_cst.
14289
14290 2018-01-03  Martin Liska  <mliska@suse.cz>
14291
14292         PR tree-optimization/83593
14293         * tree-ssa-strlen.c: Include tree-cfg.h.
14294         (strlen_check_and_optimize_stmt): Add new argument cleanup_eh.
14295         (strlen_dom_walker): Add new member variable m_cleanup_cfg.
14296         (strlen_dom_walker::strlen_dom_walker): Initialize m_cleanup_cfg
14297         to false.
14298         (strlen_dom_walker::before_dom_children): Call
14299         gimple_purge_dead_eh_edges. Dump tranformation with details
14300         dump flags.
14301         (strlen_dom_walker::before_dom_children): Update call by adding
14302         new argument cleanup_eh.
14303         (pass_strlen::execute): Return TODO_cleanup_cfg if needed.
14304
14305 2018-01-03  Martin Liska  <mliska@suse.cz>
14306
14307         PR ipa/83549
14308         * cif-code.def (VARIADIC_THUNK): New enum value.
14309         * ipa-fnsummary.c (compute_fn_summary): Do not inline variadic
14310         thunks.
14311
14312 2018-01-03  Jan Beulich  <jbeulich@suse.com>
14313
14314         * sse.md (mov<mode>_internal): Tighten condition for when to use
14315         vmovdqu<ssescalarsize> for TI and OI modes.
14316
14317 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
14318
14319         Update copyright years.
14320
14321 2018-01-03  Martin Liska  <mliska@suse.cz>
14322
14323         PR ipa/83594
14324         * ipa-visibility.c (function_and_variable_visibility): Skip
14325         functions with noipa attribure.
14326
14327 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
14328
14329         * gcc.c (process_command): Update copyright notice dates.
14330         * gcov-dump.c (print_version): Ditto.
14331         * gcov.c (print_version): Ditto.
14332         * gcov-tool.c (print_version): Ditto.
14333         * gengtype.c (create_file): Ditto.
14334         * doc/cpp.texi: Bump @copying's copyright year.
14335         * doc/cppinternals.texi: Ditto.
14336         * doc/gcc.texi: Ditto.
14337         * doc/gccint.texi: Ditto.
14338         * doc/gcov.texi: Ditto.
14339         * doc/install.texi: Ditto.
14340         * doc/invoke.texi: Ditto.
14341
14342 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14343
14344         * vector-builder.h (vector_builder::m_full_nelts): Change from
14345         unsigned int to poly_uint64.
14346         (vector_builder::full_nelts): Update prototype accordingly.
14347         (vector_builder::new_vector): Likewise.
14348         (vector_builder::encoded_full_vector_p): Handle polynomial full_nelts.
14349         (vector_builder::operator ==): Likewise.
14350         (vector_builder::finalize): Likewise.
14351         * int-vector-builder.h (int_vector_builder::int_vector_builder):
14352         Take the number of elements as a poly_uint64 rather than an
14353         unsigned int.
14354         * vec-perm-indices.h (vec_perm_indices::m_nelts_per_input): Change
14355         from unsigned int to poly_uint64.
14356         (vec_perm_indices::vec_perm_indices): Update prototype accordingly.
14357         (vec_perm_indices::new_vector): Likewise.
14358         (vec_perm_indices::length): Likewise.
14359         (vec_perm_indices::nelts_per_input): Likewise.
14360         (vec_perm_indices::input_nelts): Likewise.
14361         * vec-perm-indices.c (vec_perm_indices::new_vector): Take the
14362         number of elements per input as a poly_uint64 rather than an
14363         unsigned int.  Use the original encoding for variable-length
14364         vectors, rather than clamping each individual element.
14365         For the second and subsequent elements in each pattern,
14366         clamp the step and base before clamping their sum.
14367         (vec_perm_indices::series_p): Handle polynomial element counts.
14368         (vec_perm_indices::all_in_range_p): Likewise.
14369         (vec_perm_indices_to_tree): Likewise.
14370         (vec_perm_indices_to_rtx): Likewise.
14371         * tree-vect-stmts.c (vect_gen_perm_mask_any): Likewise.
14372         * tree-vector-builder.c (tree_vector_builder::new_unary_operation)
14373         (tree_vector_builder::new_binary_operation): Handle polynomial
14374         element counts.  Return false if we need to know the number
14375         of elements at compile time.
14376         * fold-const.c (fold_vec_perm): Punt if the number of elements
14377         isn't known at compile time.
14378
14379 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14380
14381         * vec-perm-indices.h (vec_perm_builder): Change element type
14382         from HOST_WIDE_INT to poly_int64.
14383         (vec_perm_indices::element_type): Update accordingly.
14384         (vec_perm_indices::clamp): Handle polynomial element_types.
14385         * vec-perm-indices.c (vec_perm_indices::series_p): Likewise.
14386         (vec_perm_indices::all_in_range_p): Likewise.
14387         (tree_to_vec_perm_builder): Check for poly_int64 trees rather
14388         than shwi trees.
14389         * vector-builder.h (vector_builder::stepped_sequence_p): Handle
14390         polynomial vec_perm_indices element types.
14391         * int-vector-builder.h (int_vector_builder::equal_p): Likewise.
14392         * fold-const.c (fold_vec_perm): Likewise.
14393         * optabs.c (shift_amt_for_vec_perm_mask): Likewise.
14394         * tree-vect-generic.c (lower_vec_perm): Likewise.
14395         * tree-vect-slp.c (vect_transform_slp_perm_load): Likewise.
14396         * config/aarch64/aarch64.c (aarch64_evpc_tbl): Cast d->perm
14397         element type to HOST_WIDE_INT.
14398
14399 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14400             Alan Hayward  <alan.hayward@arm.com>
14401             David Sherwood  <david.sherwood@arm.com>
14402
14403         * alias.c (addr_side_effect_eval): Take the size as a poly_int64
14404         rather than an int.  Use plus_constant.
14405         (memrefs_conflict_p): Take the sizes as poly_int64s rather than ints.
14406         Take the offset "c" as a poly_int64 rather than a HOST_WIDE_INT.
14407
14408 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14409             Alan Hayward  <alan.hayward@arm.com>
14410             David Sherwood  <david.sherwood@arm.com>
14411
14412         * calls.c (emit_call_1, expand_call): Change struct_value_size from
14413         a HOST_WIDE_INT to a poly_int64.
14414
14415 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14416             Alan Hayward  <alan.hayward@arm.com>
14417             David Sherwood  <david.sherwood@arm.com>
14418
14419         * calls.c (load_register_parameters): Cope with polynomial
14420         mode sizes.  Require a constant size for BLKmode parameters
14421         that aren't described by a PARALLEL.  If BLOCK_REG_PADDING
14422         forces a parameter to be padded at the lsb end in order to
14423         fill a complete number of words, require the parameter size
14424         to be ordered wrt UNITS_PER_WORD.
14425
14426 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14427             Alan Hayward  <alan.hayward@arm.com>
14428             David Sherwood  <david.sherwood@arm.com>
14429
14430         * reload1.c (spill_stack_slot_width): Change element type
14431         from unsigned int to poly_uint64_pod.
14432         (alter_reg): Treat mode sizes as polynomial.
14433
14434 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14435             Alan Hayward  <alan.hayward@arm.com>
14436             David Sherwood  <david.sherwood@arm.com>
14437
14438         * reload.c (complex_word_subreg_p): New function.
14439         (reload_inner_reg_of_subreg, push_reload): Use it.
14440
14441 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14442             Alan Hayward  <alan.hayward@arm.com>
14443             David Sherwood  <david.sherwood@arm.com>
14444
14445         * lra-constraints.c (process_alt_operands): Reject matched
14446         operands whose sizes aren't ordered.
14447         (match_reload): Refer to this check here.
14448
14449 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14450             Alan Hayward  <alan.hayward@arm.com>
14451             David Sherwood  <david.sherwood@arm.com>
14452
14453         * builtins.c (expand_ifn_atomic_compare_exchange_into_call): Assert
14454         that the mode size is in the set {1, 2, 4, 8, 16}.
14455
14456 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14457             Alan Hayward  <alan.hayward@arm.com>
14458             David Sherwood  <david.sherwood@arm.com>
14459
14460         * var-tracking.c (adjust_mems): Treat mode sizes as polynomial.
14461         Use plus_constant instead of gen_rtx_PLUS.
14462
14463 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14464             Alan Hayward  <alan.hayward@arm.com>
14465             David Sherwood  <david.sherwood@arm.com>
14466
14467         * config/cr16/cr16-protos.h (cr16_push_rounding): Declare.
14468         * config/cr16/cr16.h (PUSH_ROUNDING): Move implementation to...
14469         * config/cr16/cr16.c (cr16_push_rounding): ...this new function.
14470         * config/h8300/h8300-protos.h (h8300_push_rounding): Declare.
14471         * config/h8300/h8300.h (PUSH_ROUNDING): Move implementation to...
14472         * config/h8300/h8300.c (h8300_push_rounding): ...this new function.
14473         * config/i386/i386-protos.h (ix86_push_rounding): Declare.
14474         * config/i386/i386.h (PUSH_ROUNDING): Move implementation to...
14475         * config/i386/i386.c (ix86_push_rounding): ...this new function.
14476         * config/m32c/m32c-protos.h (m32c_push_rounding): Take and return
14477         a poly_int64.
14478         * config/m32c/m32c.c (m32c_push_rounding): Likewise.
14479         * config/m68k/m68k-protos.h (m68k_push_rounding): Declare.
14480         * config/m68k/m68k.h (PUSH_ROUNDING): Move implementation to...
14481         * config/m68k/m68k.c (m68k_push_rounding): ...this new function.
14482         * config/pdp11/pdp11-protos.h (pdp11_push_rounding): Declare.
14483         * config/pdp11/pdp11.h (PUSH_ROUNDING): Move implementation to...
14484         * config/pdp11/pdp11.c (pdp11_push_rounding): ...this new function.
14485         * config/stormy16/stormy16-protos.h (xstormy16_push_rounding): Declare.
14486         * config/stormy16/stormy16.h (PUSH_ROUNDING): Move implementation to...
14487         * config/stormy16/stormy16.c (xstormy16_push_rounding): ...this new
14488         function.
14489         * expr.c (emit_move_resolve_push): Treat the input and result
14490         of PUSH_ROUNDING as a poly_int64.
14491         (emit_move_complex_push, emit_single_push_insn_1): Likewise.
14492         (emit_push_insn): Likewise.
14493         * lra-eliminations.c (mark_not_eliminable): Likewise.
14494         * recog.c (push_operand): Likewise.
14495         * reload1.c (elimination_effects): Likewise.
14496         * rtlanal.c (nonzero_bits1): Likewise.
14497         * calls.c (store_one_arg): Likewise.  Require the padding to be
14498         known at compile time.
14499
14500 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14501             Alan Hayward  <alan.hayward@arm.com>
14502             David Sherwood  <david.sherwood@arm.com>
14503
14504         * expr.c (emit_single_push_insn_1): Treat mode sizes as polynomial.
14505         Use plus_constant instead of gen_rtx_PLUS.
14506
14507 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14508             Alan Hayward  <alan.hayward@arm.com>
14509             David Sherwood  <david.sherwood@arm.com>
14510
14511         * auto-inc-dec.c (set_inc_state): Take the mode size as a poly_int64
14512         rather than an int.
14513
14514 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14515             Alan Hayward  <alan.hayward@arm.com>
14516             David Sherwood  <david.sherwood@arm.com>
14517
14518         * expr.c (expand_expr_real_1): Use tree_to_poly_uint64
14519         instead of int_size_in_bytes when handling VIEW_CONVERT_EXPRs
14520         via stack temporaries.  Treat the mode size as polynomial too.
14521
14522 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14523             Alan Hayward  <alan.hayward@arm.com>
14524             David Sherwood  <david.sherwood@arm.com>
14525
14526         * expr.c (expand_expr_real_2): When handling conversions involving
14527         unions, apply tree_to_poly_uint64 to the TYPE_SIZE rather than
14528         multiplying int_size_in_bytes by BITS_PER_UNIT.  Treat GET_MODE_BISIZE
14529         as a poly_uint64 too.
14530
14531 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14532             Alan Hayward  <alan.hayward@arm.com>
14533             David Sherwood  <david.sherwood@arm.com>
14534
14535         * rtlanal.c (subreg_get_info): Handle polynomial mode sizes.
14536
14537 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14538             Alan Hayward  <alan.hayward@arm.com>
14539             David Sherwood  <david.sherwood@arm.com>
14540
14541         * combine.c (can_change_dest_mode): Handle polynomial
14542         REGMODE_NATURAL_SIZE.
14543         * expmed.c (store_bit_field_1): Likewise.
14544         * expr.c (store_constructor): Likewise.
14545         * emit-rtl.c (validate_subreg): Operate on polynomial mode sizes
14546         and polynomial REGMODE_NATURAL_SIZE.
14547         (gen_lowpart_common): Likewise.
14548         * reginfo.c (record_subregs_of_mode): Likewise.
14549         * rtlanal.c (read_modify_subreg_p): Likewise.
14550
14551 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14552             Alan Hayward  <alan.hayward@arm.com>
14553             David Sherwood  <david.sherwood@arm.com>
14554
14555         * internal-fn.c (expand_vector_ubsan_overflow): Handle polynomial
14556         numbers of elements.
14557
14558 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14559             Alan Hayward  <alan.hayward@arm.com>
14560             David Sherwood  <david.sherwood@arm.com>
14561
14562         * match.pd: Cope with polynomial numbers of vector elements.
14563
14564 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14565             Alan Hayward  <alan.hayward@arm.com>
14566             David Sherwood  <david.sherwood@arm.com>
14567
14568         * fold-const.c (fold_indirect_ref_1): Handle polynomial offsets
14569         in a POINTER_PLUS_EXPR.
14570
14571 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14572             Alan Hayward  <alan.hayward@arm.com>
14573             David Sherwood  <david.sherwood@arm.com>
14574
14575         * omp-simd-clone.c (simd_clone_subparts): New function.
14576         (simd_clone_init_simd_arrays): Use it instead of TYPE_VECTOR_SUBPARTS.
14577         (ipa_simd_modify_function_body): Likewise.
14578
14579 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14580             Alan Hayward  <alan.hayward@arm.com>
14581             David Sherwood  <david.sherwood@arm.com>
14582
14583         * tree-vect-generic.c (nunits_for_known_piecewise_op): New function.
14584         (expand_vector_piecewise): Use it instead of TYPE_VECTOR_SUBPARTS.
14585         (expand_vector_addition, add_rshift, expand_vector_divmod): Likewise.
14586         (expand_vector_condition, vector_element): Likewise.
14587         (subparts_gt): New function.
14588         (get_compute_type): Use subparts_gt.
14589         (count_type_subparts): Delete.
14590         (expand_vector_operations_1): Use subparts_gt instead of
14591         count_type_subparts.
14592
14593 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14594             Alan Hayward  <alan.hayward@arm.com>
14595             David Sherwood  <david.sherwood@arm.com>
14596
14597         * tree-vect-data-refs.c (vect_no_alias_p): Replace with...
14598         (vect_compile_time_alias): ...this new function.  Do the calculation
14599         on poly_ints rather than trees.
14600         (vect_prune_runtime_alias_test_list): Update call accordingly.
14601
14602 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14603             Alan Hayward  <alan.hayward@arm.com>
14604             David Sherwood  <david.sherwood@arm.com>
14605
14606         * tree-vect-slp.c (vect_build_slp_tree_1): Handle polynomial
14607         numbers of units.
14608         (vect_schedule_slp_instance): Likewise.
14609
14610 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14611             Alan Hayward  <alan.hayward@arm.com>
14612             David Sherwood  <david.sherwood@arm.com>
14613
14614         * tree-vect-slp.c (vect_get_and_check_slp_defs): Reject
14615         constant and extern definitions for variable-length vectors.
14616         (vect_get_constant_vectors): Note that the number of units
14617         is known to be constant.
14618
14619 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14620             Alan Hayward  <alan.hayward@arm.com>
14621             David Sherwood  <david.sherwood@arm.com>
14622
14623         * tree-vect-stmts.c (vectorizable_conversion): Treat the number
14624         of units as polynomial.  Choose between WIDE and NARROW based
14625         on multiple_p.
14626
14627 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14628             Alan Hayward  <alan.hayward@arm.com>
14629             David Sherwood  <david.sherwood@arm.com>
14630
14631         * tree-vect-stmts.c (simd_clone_subparts): New function.
14632         (vectorizable_simd_clone_call): Use it instead of TYPE_VECTOR_SUBPARTS.
14633
14634 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14635             Alan Hayward  <alan.hayward@arm.com>
14636             David Sherwood  <david.sherwood@arm.com>
14637
14638         * tree-vect-stmts.c (vectorizable_call): Treat the number of
14639         vectors as polynomial.  Use build_index_vector for
14640         IFN_GOMP_SIMD_LANE.
14641
14642 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14643             Alan Hayward  <alan.hayward@arm.com>
14644             David Sherwood  <david.sherwood@arm.com>
14645
14646         * tree-vect-stmts.c (get_load_store_type): Treat the number of
14647         units as polynomial.  Reject VMAT_ELEMENTWISE and VMAT_STRIDED_SLP
14648         for variable-length vectors.
14649         (vectorizable_mask_load_store): Treat the number of units as
14650         polynomial, asserting that it is constant if the condition has
14651         already been enforced.
14652         (vectorizable_store, vectorizable_load): Likewise.
14653
14654 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14655             Alan Hayward  <alan.hayward@arm.com>
14656             David Sherwood  <david.sherwood@arm.com>
14657
14658         * tree-vect-loop.c (vectorizable_live_operation): Treat the number
14659         of units as polynomial.  Punt if we can't tell at compile time
14660         which vector contains the final result.
14661
14662 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14663             Alan Hayward  <alan.hayward@arm.com>
14664             David Sherwood  <david.sherwood@arm.com>
14665
14666         * tree-vect-loop.c (vectorizable_induction): Treat the number
14667         of units as polynomial.  Punt on SLP inductions.  Use an integer
14668         VEC_SERIES_EXPR for variable-length integer reductions.  Use a
14669         cast of such a series for variable-length floating-point
14670         reductions.
14671
14672 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14673             Alan Hayward  <alan.hayward@arm.com>
14674             David Sherwood  <david.sherwood@arm.com>
14675
14676         * tree.h (build_index_vector): Declare.
14677         * tree.c (build_index_vector): New function.
14678         * tree-vect-loop.c (get_initial_defs_for_reduction): Treat the number
14679         of units as polynomial, forcibly converting it to a constant if
14680         vectorizable_reduction has already enforced the condition.
14681         (vect_create_epilog_for_reduction): Likewise.  Use build_index_vector
14682         to create a {1,2,3,...} vector.
14683         (vectorizable_reduction): Treat the number of units as polynomial.
14684         Choose vectype_in based on the largest scalar element size rather
14685         than the smallest number of units.  Enforce the restrictions
14686         relied on above.
14687
14688 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14689             Alan Hayward  <alan.hayward@arm.com>
14690             David Sherwood  <david.sherwood@arm.com>
14691
14692         * tree-vect-data-refs.c (vector_alignment_reachable_p): Treat the
14693         number of units as polynomial.
14694
14695 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14696             Alan Hayward  <alan.hayward@arm.com>
14697             David Sherwood  <david.sherwood@arm.com>
14698
14699         * target.h (vector_sizes, auto_vector_sizes): New typedefs.
14700         * target.def (autovectorize_vector_sizes): Return the vector sizes
14701         by pointer, using vector_sizes rather than a bitmask.
14702         * targhooks.h (default_autovectorize_vector_sizes): Update accordingly.
14703         * targhooks.c (default_autovectorize_vector_sizes): Likewise.
14704         * config/aarch64/aarch64.c (aarch64_autovectorize_vector_sizes):
14705         Likewise.
14706         * config/arc/arc.c (arc_autovectorize_vector_sizes): Likewise.
14707         * config/arm/arm.c (arm_autovectorize_vector_sizes): Likewise.
14708         * config/i386/i386.c (ix86_autovectorize_vector_sizes): Likewise.
14709         * config/mips/mips.c (mips_autovectorize_vector_sizes): Likewise.
14710         * omp-general.c (omp_max_vf): Likewise.
14711         * omp-low.c (omp_clause_aligned_alignment): Likewise.
14712         * optabs-query.c (can_vec_mask_load_store_p): Likewise.
14713         * tree-vect-loop.c (vect_analyze_loop): Likewise.
14714         * tree-vect-slp.c (vect_slp_bb): Likewise.
14715         * doc/tm.texi: Regenerate.
14716         * tree-vectorizer.h (current_vector_size): Change from an unsigned int
14717         to a poly_uint64.
14718         * tree-vect-stmts.c (get_vectype_for_scalar_type_and_size): Take
14719         the vector size as a poly_uint64 rather than an unsigned int.
14720         (current_vector_size): Change from an unsigned int to a poly_uint64.
14721         (get_vectype_for_scalar_type): Update accordingly.
14722         * tree.h (build_truth_vector_type): Take the size and number of
14723         units as a poly_uint64 rather than an unsigned int.
14724         (build_vector_type): Add a temporary overload that takes
14725         the number of units as a poly_uint64 rather than an unsigned int.
14726         * tree.c (make_vector_type): Likewise.
14727         (build_truth_vector_type): Take the number of units as a poly_uint64
14728         rather than an unsigned int.
14729
14730 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14731             Alan Hayward  <alan.hayward@arm.com>
14732             David Sherwood  <david.sherwood@arm.com>
14733
14734         * target.def (get_mask_mode): Take the number of units and length
14735         as poly_uint64s rather than unsigned ints.
14736         * targhooks.h (default_get_mask_mode): Update accordingly.
14737         * targhooks.c (default_get_mask_mode): Likewise.
14738         * config/i386/i386.c (ix86_get_mask_mode): Likewise.
14739         * doc/tm.texi: Regenerate.
14740
14741 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14742             Alan Hayward  <alan.hayward@arm.com>
14743             David Sherwood  <david.sherwood@arm.com>
14744
14745         * omp-general.h (omp_max_vf): Return a poly_uint64 instead of an int.
14746         * omp-general.c (omp_max_vf): Likewise.
14747         * omp-expand.c (omp_adjust_chunk_size): Update call to omp_max_vf.
14748         (expand_omp_simd): Handle polynomial safelen.
14749         * omp-low.c (omplow_simd_context): Add a default constructor.
14750         (omplow_simd_context::max_vf): Change from int to poly_uint64.
14751         (lower_rec_simd_input_clauses): Update accordingly.
14752         (lower_rec_input_clauses): Likewise.
14753
14754 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14755             Alan Hayward  <alan.hayward@arm.com>
14756             David Sherwood  <david.sherwood@arm.com>
14757
14758         * tree-vectorizer.h (vect_nunits_for_cost): New function.
14759         * tree-vect-loop.c (vect_model_reduction_cost): Use it.
14760         * tree-vect-slp.c (vect_analyze_slp_cost_1): Likewise.
14761         (vect_analyze_slp_cost): Likewise.
14762         * tree-vect-stmts.c (vect_model_store_cost): Likewise.
14763         (vect_model_load_cost): Likewise.
14764
14765 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14766             Alan Hayward  <alan.hayward@arm.com>
14767             David Sherwood  <david.sherwood@arm.com>
14768
14769         * tree-vect-slp.c (vect_record_max_nunits, vect_build_slp_tree_1)
14770         (vect_build_slp_tree_2, vect_build_slp_tree): Change max_nunits
14771         from an unsigned int * to a poly_uint64_pod *.
14772         (calculate_unrolling_factor): New function.
14773         (vect_analyze_slp_instance): Use it.  Track polynomial max_nunits.
14774
14775 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14776             Alan Hayward  <alan.hayward@arm.com>
14777             David Sherwood  <david.sherwood@arm.com>
14778
14779         * tree-vectorizer.h (_slp_instance::unrolling_factor): Change
14780         from an unsigned int to a poly_uint64.
14781         (_loop_vec_info::slp_unrolling_factor): Likewise.
14782         (_loop_vec_info::vectorization_factor): Change from an int
14783         to a poly_uint64.
14784         (MAX_VECTORIZATION_FACTOR): Bump from 64 to INT_MAX.
14785         (vect_get_num_vectors): New function.
14786         (vect_update_max_nunits, vect_vf_for_cost): Likewise.
14787         (vect_get_num_copies): Use vect_get_num_vectors.
14788         (vect_analyze_data_ref_dependences): Change max_vf from an int *
14789         to an unsigned int *.
14790         (vect_analyze_data_refs): Change min_vf from an int * to a
14791         poly_uint64 *.
14792         (vect_transform_slp_perm_load): Take the vf as a poly_uint64 rather
14793         than an unsigned HOST_WIDE_INT.
14794         * tree-vect-data-refs.c (vect_analyze_possibly_independent_ddr)
14795         (vect_analyze_data_ref_dependence): Change max_vf from an int *
14796         to an unsigned int *.
14797         (vect_analyze_data_ref_dependences): Likewise.
14798         (vect_compute_data_ref_alignment): Handle polynomial vf.
14799         (vect_enhance_data_refs_alignment): Likewise.
14800         (vect_prune_runtime_alias_test_list): Likewise.
14801         (vect_shift_permute_load_chain): Likewise.
14802         (vect_supportable_dr_alignment): Likewise.
14803         (dependence_distance_ge_vf): Take the vectorization factor as a
14804         poly_uint64 rather than an unsigned HOST_WIDE_INT.
14805         (vect_analyze_data_refs): Change min_vf from an int * to a
14806         poly_uint64 *.
14807         * tree-vect-loop-manip.c (vect_gen_scalar_loop_niters): Take
14808         vfm1 as a poly_uint64 rather than an int.  Make the same change
14809         for the returned bound_scalar.
14810         (vect_gen_vector_loop_niters): Handle polynomial vf.
14811         (vect_do_peeling): Likewise.  Update call to
14812         vect_gen_scalar_loop_niters and handle polynomial bound_scalars.
14813         (vect_gen_vector_loop_niters_mult_vf): Assert that the vf must
14814         be constant.
14815         * tree-vect-loop.c (vect_determine_vectorization_factor)
14816         (vect_update_vf_for_slp, vect_analyze_loop_2): Handle polynomial vf.
14817         (vect_get_known_peeling_cost): Likewise.
14818         (vect_estimate_min_profitable_iters, vectorizable_reduction): Likewise.
14819         (vect_worthwhile_without_simd_p, vectorizable_induction): Likewise.
14820         (vect_transform_loop): Likewise.  Use the lowest possible VF when
14821         updating the upper bounds of the loop.
14822         (vect_min_worthwhile_factor): Make static.  Return an unsigned int
14823         rather than an int.
14824         * tree-vect-slp.c (vect_attempt_slp_rearrange_stmts): Cope with
14825         polynomial unroll factors.
14826         (vect_analyze_slp_cost_1, vect_analyze_slp_instance): Likewise.
14827         (vect_make_slp_decision): Likewise.
14828         (vect_supported_load_permutation_p): Likewise, and polynomial
14829         vf too.
14830         (vect_analyze_slp_cost): Handle polynomial vf.
14831         (vect_slp_analyze_node_operations): Likewise.
14832         (vect_slp_analyze_bb_1): Likewise.
14833         (vect_transform_slp_perm_load): Take the vf as a poly_uint64 rather
14834         than an unsigned HOST_WIDE_INT.
14835         * tree-vect-stmts.c (vectorizable_simd_clone_call, vectorizable_store)
14836         (vectorizable_load): Handle polynomial vf.
14837         * tree-vectorizer.c (simduid_to_vf::vf): Change from an int to
14838         a poly_uint64.
14839         (adjust_simduid_builtins, shrink_simd_arrays): Update accordingly.
14840
14841 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14842             Alan Hayward  <alan.hayward@arm.com>
14843             David Sherwood  <david.sherwood@arm.com>
14844
14845         * match.pd: Handle bit operations involving three constants
14846         and try to fold one pair.
14847
14848 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14849
14850         * tree-vect-loop-manip.c: Include gimple-fold.h.
14851         (slpeel_make_loop_iterate_ntimes): Add step, final_iv and
14852         niters_maybe_zero parameters.  Handle other cases besides a step of 1.
14853         (vect_gen_vector_loop_niters): Add a step_vector_ptr parameter.
14854         Add a path that uses a step of VF instead of 1, but disable it
14855         for now.
14856         (vect_do_peeling): Add step_vector, niters_vector_mult_vf_var
14857         and niters_no_overflow parameters.  Update calls to
14858         slpeel_make_loop_iterate_ntimes and vect_gen_vector_loop_niters.
14859         Create a new SSA name if the latter choses to use a ste other
14860         than zero, and return it via niters_vector_mult_vf_var.
14861         * tree-vect-loop.c (vect_transform_loop): Update calls to
14862         vect_do_peeling, vect_gen_vector_loop_niters and
14863         slpeel_make_loop_iterate_ntimes.
14864         * tree-vectorizer.h (slpeel_make_loop_iterate_ntimes, vect_do_peeling)
14865         (vect_gen_vector_loop_niters): Update declarations after above changes.
14866
14867 2018-01-02  Michael Meissner  <meissner@linux.vnet.ibm.com>
14868
14869         * config/rs6000/rs6000.md (floor<mode>2): Add support for IEEE
14870         128-bit round to integer instructions.
14871         (ceil<mode>2): Likewise.
14872         (btrunc<mode>2): Likewise.
14873         (round<mode>2): Likewise.
14874
14875 2018-01-02  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
14876
14877         * config/rs6000/rs6000-string.c (expand_block_move): Allow the use of
14878         unaligned VSX load/store on P8/P9.
14879         (expand_block_clear): Allow the use of unaligned VSX
14880         load/store on P8/P9.
14881
14882 2018-01-02  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
14883
14884         * config/rs6000/rs6000-p8swap.c (swap_feeds_both_load_and_store):
14885         New function.
14886         (rs6000_analyze_swaps): Mark a web unoptimizable if it contains a
14887         swap associated with both a load and a store.
14888
14889 2018-01-02  Andrew Waterman  <andrew@sifive.com>
14890
14891         * config/riscv/linux.h (ICACHE_FLUSH_FUNC): New.
14892         * config/riscv/riscv.md (clear_cache): Use it.
14893
14894 2018-01-02  Artyom Skrobov  <tyomitch@gmail.com>
14895
14896         * web.c: Remove out-of-date comment.
14897
14898 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
14899
14900         * expr.c (fixup_args_size_notes): Check that any existing
14901         REG_ARGS_SIZE notes are correct, and don't try to re-add them.
14902         (emit_single_push_insn_1): Move stack_pointer_delta adjustment to...
14903         (emit_single_push_insn): ...here.
14904
14905 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
14906
14907         * rtl.h (CONST_VECTOR_ELT): Redefine to const_vector_elt.
14908         (const_vector_encoded_nelts): New function.
14909         (CONST_VECTOR_NUNITS): Redefine to use GET_MODE_NUNITS.
14910         (const_vector_int_elt, const_vector_elt): Declare.
14911         * emit-rtl.c (const_vector_int_elt_1): New function.
14912         (const_vector_elt): Likewise.
14913         * simplify-rtx.c (simplify_immed_subreg): Avoid taking the address
14914         of CONST_VECTOR_ELT.
14915
14916 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
14917
14918         * expr.c: Include rtx-vector-builder.h.
14919         (const_vector_mask_from_tree): Use rtx_vector_builder and operate
14920         directly on the tree encoding.
14921         (const_vector_from_tree): Likewise.
14922         * optabs.c: Include rtx-vector-builder.h.
14923         (expand_vec_perm_var): Use rtx_vector_builder and create a repeating
14924         sequence of "u" values.
14925         * vec-perm-indices.c: Include rtx-vector-builder.h.
14926         (vec_perm_indices_to_rtx): Use rtx_vector_builder and operate
14927         directly on the vec_perm_indices encoding.
14928
14929 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
14930
14931         * doc/rtl.texi (const_vector): Describe new encoding scheme.
14932         * Makefile.in (OBJS): Add rtx-vector-builder.o.
14933         * rtx-vector-builder.h: New file.
14934         * rtx-vector-builder.c: Likewise.
14935         * rtl.h (rtx_def::u2): Add a const_vector field.
14936         (CONST_VECTOR_NPATTERNS): New macro.
14937         (CONST_VECTOR_NELTS_PER_PATTERN): Likewise.
14938         (CONST_VECTOR_DUPLICATE_P): Likewise.
14939         (CONST_VECTOR_STEPPED_P): Likewise.
14940         (CONST_VECTOR_ENCODED_ELT): Likewise.
14941         (const_vec_duplicate_p): Check for a duplicated vector encoding.
14942         (unwrap_const_vec_duplicate): Likewise.
14943         (const_vec_series_p): Check for a non-duplicated vector encoding.
14944         Say that the function only returns true for integer vectors.
14945         * emit-rtl.c: Include rtx-vector-builder.h.
14946         (gen_const_vec_duplicate_1): Delete.
14947         (gen_const_vector): Call gen_const_vec_duplicate instead of
14948         gen_const_vec_duplicate_1.
14949         (const_vec_series_p_1): Operate directly on the CONST_VECTOR encoding.
14950         (gen_const_vec_duplicate): Use rtx_vector_builder.
14951         (gen_const_vec_series): Likewise.
14952         (gen_rtx_CONST_VECTOR): Likewise.
14953         * config/powerpcspe/powerpcspe.c: Include rtx-vector-builder.h.
14954         (swap_const_vector_halves): Take an rtx pointer rather than rtx.
14955         Build a new vector rather than modifying a CONST_VECTOR in-place.
14956         (handle_special_swappables): Update call accordingly.
14957         * config/rs6000/rs6000-p8swap.c: Include rtx-vector-builder.h.
14958         (swap_const_vector_halves): Take an rtx pointer rather than rtx.
14959         Build a new vector rather than modifying a CONST_VECTOR in-place.
14960         (handle_special_swappables): Update call accordingly.
14961
14962 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
14963
14964         * simplify-rtx.c (simplify_const_binary_operation): Use
14965         CONST_VECTOR_ELT instead of XVECEXP.
14966
14967 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
14968
14969         * tree-cfg.c (verify_gimple_assign_ternary): Allow the size of
14970         the selector elements to be different from the data elements
14971         if the selector is a VECTOR_CST.
14972         * tree-vect-stmts.c (vect_gen_perm_mask_any): Use a vector of
14973         ssizetype for the selector.
14974
14975 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
14976
14977         * optabs.c (shift_amt_for_vec_perm_mask): Try using series_p
14978         before testing each element individually.
14979         * tree-vect-generic.c (lower_vec_perm): Likewise.
14980
14981 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
14982
14983         * selftest.h (selftest::vec_perm_indices_c_tests): Declare.
14984         * selftest-run-tests.c (selftest::run_tests): Call it.
14985         * vector-builder.h (vector_builder::operator ==): New function.
14986         (vector_builder::operator !=): Likewise.
14987         * vec-perm-indices.h (vec_perm_indices::series_p): Declare.
14988         (vec_perm_indices::all_from_input_p): New function.
14989         * vec-perm-indices.c (vec_perm_indices::series_p): Likewise.
14990         (test_vec_perm_12, selftest::vec_perm_indices_c_tests): Likewise.
14991         * fold-const.c (fold_ternary_loc): Use tree_to_vec_perm_builder
14992         instead of reading the VECTOR_CST directly.  Detect whether both
14993         vector inputs are the same before constructing the vec_perm_indices,
14994         and update the number of inputs argument accordingly.  Use the
14995         utility functions added above.  Only construct sel2 if we need to.
14996
14997 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
14998
14999         * optabs.c (expand_vec_perm_var): Use an explicit encoding for
15000         the broadcast of the low byte.
15001         (expand_mult_highpart): Use an explicit encoding for the permutes.
15002         * optabs-query.c (can_mult_highpart_p): Likewise.
15003         * tree-vect-loop.c (calc_vec_perm_mask_for_shift): Likewise.
15004         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
15005         (vectorizable_bswap): Likewise.
15006         * tree-vect-data-refs.c (vect_grouped_store_supported): Use an
15007         explicit encoding for the power-of-2 permutes.
15008         (vect_permute_store_chain): Likewise.
15009         (vect_grouped_load_supported): Likewise.
15010         (vect_permute_load_chain): Likewise.
15011
15012 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
15013
15014         * vec-perm-indices.h (vec_perm_indices_to_tree): Declare.
15015         * vec-perm-indices.c (vec_perm_indices_to_tree): New function.
15016         * tree-ssa-forwprop.c (simplify_vector_constructor): Use it.
15017         * tree-vect-slp.c (vect_transform_slp_perm_load): Likewise.
15018         * tree-vect-stmts.c (vectorizable_bswap): Likewise.
15019         (vect_gen_perm_mask_any): Likewise.
15020
15021 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
15022
15023         * int-vector-builder.h: New file.
15024         * vec-perm-indices.h: Include int-vector-builder.h.
15025         (vec_perm_indices): Redefine as an int_vector_builder.
15026         (auto_vec_perm_indices): Delete.
15027         (vec_perm_builder): Redefine as a stand-alone class.
15028         (vec_perm_indices::vec_perm_indices): New function.
15029         (vec_perm_indices::clamp): Likewise.
15030         * vec-perm-indices.c: Include fold-const.h and tree-vector-builder.h.
15031         (vec_perm_indices::new_vector): New function.
15032         (vec_perm_indices::new_expanded_vector): Update for new
15033         vec_perm_indices class.
15034         (vec_perm_indices::rotate_inputs): New function.
15035         (vec_perm_indices::all_in_range_p): Operate directly on the
15036         encoded form, without computing elided elements.
15037         (tree_to_vec_perm_builder): Operate directly on the VECTOR_CST
15038         encoding.  Update for new vec_perm_indices class.
15039         * optabs.c (expand_vec_perm_const): Create a vec_perm_indices for
15040         the given vec_perm_builder.
15041         (expand_vec_perm_var): Update vec_perm_builder constructor.
15042         (expand_mult_highpart): Use vec_perm_builder instead of
15043         auto_vec_perm_indices.
15044         * optabs-query.c (can_mult_highpart_p): Use vec_perm_builder and
15045         vec_perm_indices instead of auto_vec_perm_indices.  Use a single
15046         or double series encoding as appropriate.
15047         * fold-const.c (fold_ternary_loc): Use vec_perm_builder and
15048         vec_perm_indices instead of auto_vec_perm_indices.
15049         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
15050         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
15051         (vect_permute_store_chain): Likewise.
15052         (vect_grouped_load_supported): Likewise.
15053         (vect_permute_load_chain): Likewise.
15054         (vect_shift_permute_load_chain): Likewise.
15055         * tree-vect-slp.c (vect_build_slp_tree_1): Likewise.
15056         (vect_transform_slp_perm_load): Likewise.
15057         (vect_schedule_slp_instance): Likewise.
15058         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
15059         (vectorizable_mask_load_store): Likewise.
15060         (vectorizable_bswap): Likewise.
15061         (vectorizable_store): Likewise.
15062         (vectorizable_load): Likewise.
15063         * tree-vect-generic.c (lower_vec_perm): Use vec_perm_builder and
15064         vec_perm_indices instead of auto_vec_perm_indices.  Use
15065         tree_to_vec_perm_builder to read the vector from a tree.
15066         * tree-vect-loop.c (calc_vec_perm_mask_for_shift): Take a
15067         vec_perm_builder instead of a vec_perm_indices.
15068         (have_whole_vector_shift): Use vec_perm_builder and
15069         vec_perm_indices instead of auto_vec_perm_indices.  Leave the
15070         truncation to calc_vec_perm_mask_for_shift.
15071         (vect_create_epilog_for_reduction): Likewise.
15072         * config/aarch64/aarch64.c (expand_vec_perm_d::perm): Change
15073         from auto_vec_perm_indices to vec_perm_indices.
15074         (aarch64_expand_vec_perm_const_1): Use rotate_inputs on d.perm
15075         instead of changing individual elements.
15076         (aarch64_vectorize_vec_perm_const): Use new_vector to install
15077         the vector in d.perm.
15078         * config/arm/arm.c (expand_vec_perm_d::perm): Change
15079         from auto_vec_perm_indices to vec_perm_indices.
15080         (arm_expand_vec_perm_const_1): Use rotate_inputs on d.perm
15081         instead of changing individual elements.
15082         (arm_vectorize_vec_perm_const): Use new_vector to install
15083         the vector in d.perm.
15084         * config/powerpcspe/powerpcspe.c (rs6000_expand_extract_even):
15085         Update vec_perm_builder constructor.
15086         (rs6000_expand_interleave): Likewise.
15087         * config/rs6000/rs6000.c (rs6000_expand_extract_even): Likewise.
15088         (rs6000_expand_interleave): Likewise.
15089
15090 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
15091
15092         * optabs-query.c (can_vec_perm_var_p): Check whether lowering
15093         to qimode could truncate the indices.
15094         * optabs.c (expand_vec_perm_var): Likewise.
15095
15096 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
15097
15098         * Makefile.in (OBJS): Add vec-perm-indices.o.
15099         * vec-perm-indices.h: New file.
15100         * vec-perm-indices.c: Likewise.
15101         * target.h (vec_perm_indices): Replace with a forward class
15102         declaration.
15103         (auto_vec_perm_indices): Move to vec-perm-indices.h.
15104         * optabs.h: Include vec-perm-indices.h.
15105         (expand_vec_perm): Delete.
15106         (selector_fits_mode_p, expand_vec_perm_var): Declare.
15107         (expand_vec_perm_const): Declare.
15108         * target.def (vec_perm_const_ok): Replace with...
15109         (vec_perm_const): ...this new hook.
15110         * doc/tm.texi.in (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Replace with...
15111         (TARGET_VECTORIZE_VEC_PERM_CONST): ...this new hook.
15112         * doc/tm.texi: Regenerate.
15113         * optabs.def (vec_perm_const): Delete.
15114         * doc/md.texi (vec_perm_const): Likewise.
15115         (vec_perm): Refer to TARGET_VECTORIZE_VEC_PERM_CONST.
15116         * expr.c (expand_expr_real_2): Use expand_vec_perm_const rather than
15117         expand_vec_perm for constant permutation vectors.  Assert that
15118         the mode of variable permutation vectors is the integer equivalent
15119         of the mode that is being permuted.
15120         * optabs-query.h (selector_fits_mode_p): Declare.
15121         * optabs-query.c: Include vec-perm-indices.h.
15122         (selector_fits_mode_p): New function.
15123         (can_vec_perm_const_p): Check whether targetm.vectorize.vec_perm_const
15124         is defined, instead of checking whether the vec_perm_const_optab
15125         exists.  Use targetm.vectorize.vec_perm_const instead of
15126         targetm.vectorize.vec_perm_const_ok.  Check whether the indices
15127         fit in the vector mode before using a variable permute.
15128         * optabs.c (shift_amt_for_vec_perm_mask): Take a mode and a
15129         vec_perm_indices instead of an rtx.
15130         (expand_vec_perm): Replace with...
15131         (expand_vec_perm_const): ...this new function.  Take the selector
15132         as a vec_perm_indices rather than an rtx.  Also take the mode of
15133         the selector.  Update call to shift_amt_for_vec_perm_mask.
15134         Use targetm.vectorize.vec_perm_const instead of vec_perm_const_optab.
15135         Use vec_perm_indices::new_expanded_vector to expand the original
15136         selector into bytes.  Check whether the indices fit in the vector
15137         mode before using a variable permute.
15138         (expand_vec_perm_var): Make global.
15139         (expand_mult_highpart): Use expand_vec_perm_const.
15140         * fold-const.c: Includes vec-perm-indices.h.
15141         * tree-ssa-forwprop.c: Likewise.
15142         * tree-vect-data-refs.c: Likewise.
15143         * tree-vect-generic.c: Likewise.
15144         * tree-vect-loop.c: Likewise.
15145         * tree-vect-slp.c: Likewise.
15146         * tree-vect-stmts.c: Likewise.
15147         * config/aarch64/aarch64-protos.h (aarch64_expand_vec_perm_const):
15148         Delete.
15149         * config/aarch64/aarch64-simd.md (vec_perm_const<mode>): Delete.
15150         * config/aarch64/aarch64.c (aarch64_expand_vec_perm_const)
15151         (aarch64_vectorize_vec_perm_const_ok): Fuse into...
15152         (aarch64_vectorize_vec_perm_const): ...this new function.
15153         (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
15154         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
15155         * config/arm/arm-protos.h (arm_expand_vec_perm_const): Delete.
15156         * config/arm/vec-common.md (vec_perm_const<mode>): Delete.
15157         * config/arm/arm.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
15158         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
15159         (arm_expand_vec_perm_const, arm_vectorize_vec_perm_const_ok): Merge
15160         into...
15161         (arm_vectorize_vec_perm_const): ...this new function.  Explicitly
15162         check for NEON modes.
15163         * config/i386/i386-protos.h (ix86_expand_vec_perm_const): Delete.
15164         * config/i386/sse.md (VEC_PERM_CONST, vec_perm_const<mode>): Delete.
15165         * config/i386/i386.c (ix86_expand_vec_perm_const_1): Update comment.
15166         (ix86_expand_vec_perm_const, ix86_vectorize_vec_perm_const_ok): Merge
15167         into...
15168         (ix86_vectorize_vec_perm_const): ...this new function.  Incorporate
15169         the old VEC_PERM_CONST conditions.
15170         * config/ia64/ia64-protos.h (ia64_expand_vec_perm_const): Delete.
15171         * config/ia64/vect.md (vec_perm_const<mode>): Delete.
15172         * config/ia64/ia64.c (ia64_expand_vec_perm_const)
15173         (ia64_vectorize_vec_perm_const_ok): Merge into...
15174         (ia64_vectorize_vec_perm_const): ...this new function.
15175         * config/mips/loongson.md (vec_perm_const<mode>): Delete.
15176         * config/mips/mips-msa.md (vec_perm_const<mode>): Delete.
15177         * config/mips/mips-ps-3d.md (vec_perm_constv2sf): Delete.
15178         * config/mips/mips-protos.h (mips_expand_vec_perm_const): Delete.
15179         * config/mips/mips.c (mips_expand_vec_perm_const)
15180         (mips_vectorize_vec_perm_const_ok): Merge into...
15181         (mips_vectorize_vec_perm_const): ...this new function.
15182         * config/powerpcspe/altivec.md (vec_perm_constv16qi): Delete.
15183         * config/powerpcspe/paired.md (vec_perm_constv2sf): Delete.
15184         * config/powerpcspe/spe.md (vec_perm_constv2si): Delete.
15185         * config/powerpcspe/vsx.md (vec_perm_const<mode>): Delete.
15186         * config/powerpcspe/powerpcspe-protos.h (altivec_expand_vec_perm_const)
15187         (rs6000_expand_vec_perm_const): Delete.
15188         * config/powerpcspe/powerpcspe.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK):
15189         Delete.
15190         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
15191         (altivec_expand_vec_perm_const_le): Take each operand individually.
15192         Operate on constant selectors rather than rtxes.
15193         (altivec_expand_vec_perm_const): Likewise.  Update call to
15194         altivec_expand_vec_perm_const_le.
15195         (rs6000_expand_vec_perm_const): Delete.
15196         (rs6000_vectorize_vec_perm_const_ok): Delete.
15197         (rs6000_vectorize_vec_perm_const): New function.
15198         (rs6000_do_expand_vec_perm): Take a vec_perm_builder instead of
15199         an element count and rtx array.
15200         (rs6000_expand_extract_even): Update call accordingly.
15201         (rs6000_expand_interleave): Likewise.
15202         * config/rs6000/altivec.md (vec_perm_constv16qi): Delete.
15203         * config/rs6000/paired.md (vec_perm_constv2sf): Delete.
15204         * config/rs6000/vsx.md (vec_perm_const<mode>): Delete.
15205         * config/rs6000/rs6000-protos.h (altivec_expand_vec_perm_const)
15206         (rs6000_expand_vec_perm_const): Delete.
15207         * config/rs6000/rs6000.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
15208         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
15209         (altivec_expand_vec_perm_const_le): Take each operand individually.
15210         Operate on constant selectors rather than rtxes.
15211         (altivec_expand_vec_perm_const): Likewise.  Update call to
15212         altivec_expand_vec_perm_const_le.
15213         (rs6000_expand_vec_perm_const): Delete.
15214         (rs6000_vectorize_vec_perm_const_ok): Delete.
15215         (rs6000_vectorize_vec_perm_const): New function.  Remove stray
15216         reference to the SPE evmerge intructions.
15217         (rs6000_do_expand_vec_perm): Take a vec_perm_builder instead of
15218         an element count and rtx array.
15219         (rs6000_expand_extract_even): Update call accordingly.
15220         (rs6000_expand_interleave): Likewise.
15221         * config/sparc/sparc.md (vec_perm_constv8qi): Delete in favor of...
15222         * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): ...this
15223         new function.
15224         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
15225
15226 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
15227
15228         * optabs.c (expand_vec_perm_1): Assert that SEL has an integer
15229         vector mode and that that mode matches the mode of the data
15230         being permuted.
15231         (expand_vec_perm): Split handling of non-CONST_VECTOR selectors
15232         out into expand_vec_perm_var.  Do all CONST_VECTOR handling here,
15233         directly using expand_vec_perm_1 when forcing selectors into
15234         registers.
15235         (expand_vec_perm_var): New function, split out from expand_vec_perm.
15236
15237 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
15238
15239         * optabs-query.h (can_vec_perm_p): Delete.
15240         (can_vec_perm_var_p, can_vec_perm_const_p): Declare.
15241         * optabs-query.c (can_vec_perm_p): Split into...
15242         (can_vec_perm_var_p, can_vec_perm_const_p): ...these two functions.
15243         (can_mult_highpart_p): Use can_vec_perm_const_p to test whether a
15244         particular selector is valid.
15245         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
15246         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
15247         (vect_grouped_load_supported): Likewise.
15248         (vect_shift_permute_load_chain): Likewise.
15249         * tree-vect-slp.c (vect_build_slp_tree_1): Likewise.
15250         (vect_transform_slp_perm_load): Likewise.
15251         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
15252         (vectorizable_bswap): Likewise.
15253         (vect_gen_perm_mask_checked): Likewise.
15254         * fold-const.c (fold_ternary_loc): Likewise.  Don't take
15255         implementations of variable permutation vectors into account
15256         when deciding which selector to use.
15257         * tree-vect-loop.c (have_whole_vector_shift): Don't check whether
15258         vec_perm_const_optab is supported; instead use can_vec_perm_const_p
15259         with a false third argument.
15260         * tree-vect-generic.c (lower_vec_perm): Use can_vec_perm_const_p
15261         to test whether the constant selector is valid and can_vec_perm_var_p
15262         to test whether a variable selector is valid.
15263
15264 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
15265
15266         * optabs-query.h (can_vec_perm_p): Take a const vec_perm_indices *.
15267         * optabs-query.c (can_vec_perm_p): Likewise.
15268         * fold-const.c (fold_vec_perm): Take a const vec_perm_indices &
15269         instead of vec_perm_indices.
15270         * tree-vectorizer.h (vect_gen_perm_mask_any): Likewise,
15271         (vect_gen_perm_mask_checked): Likewise,
15272         * tree-vect-stmts.c (vect_gen_perm_mask_any): Likewise,
15273         (vect_gen_perm_mask_checked): Likewise,
15274
15275 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
15276
15277         * optabs-query.h (qimode_for_vec_perm): Declare.
15278         * optabs-query.c (can_vec_perm_p): Split out qimode search to...
15279         (qimode_for_vec_perm): ...this new function.
15280         * optabs.c (expand_vec_perm): Use qimode_for_vec_perm.
15281
15282 2018-01-02  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
15283
15284         * rtlanal.c (canonicalize_condition): Return 0 if final rtx
15285         does not have a conditional at the top.
15286
15287 2018-01-02  Richard Biener  <rguenther@suse.de>
15288
15289         * ipa-inline.c (big_speedup_p): Fix expression.
15290
15291 2018-01-02  Jan Hubicka  <hubicka@ucw.cz>
15292
15293         PR target/81616
15294         * config/i386/x86-tune-costs.h: Increase cost of integer load costs
15295         for generic 4->6.
15296
15297 2018-01-02  Jan Hubicka  <hubicka@ucw.cz>
15298
15299         PR target/81616
15300         Generic tuning.
15301         * x86-tune-costs.h (generic_cost): Reduce cost of FDIV 20->17,
15302         cost of sqrt 20->14, DIVSS 18->13, DIVSD 32->17, SQRtSS 30->14
15303         and SQRTsD 58->18, cond_not_taken_branch_cost. 2->1. Increase
15304         cond_taken_branch_cost 3->4.
15305
15306 2018-01-01  Jakub Jelinek  <jakub@redhat.com>
15307
15308         PR tree-optimization/83581
15309         * tree-loop-distribution.c (pass_loop_distribution::execute): Return
15310         TODO_cleanup_cfg if any changes have been made.
15311
15312         PR middle-end/83608
15313         * expr.c (store_expr_with_bounds): Use simplify_gen_subreg instead of
15314         convert_modes if target mode has the right side, but different mode
15315         class.
15316
15317         PR middle-end/83609
15318         * expr.c (expand_assignment): Fix up a typo in simplify_gen_subreg
15319         last argument when extracting from CONCAT.  If either from_real or
15320         from_imag is NULL, use expansion through memory.  If result is not
15321         a CONCAT and simplify_gen_subreg fails, try to simplify_gen_subreg
15322         the parts directly to inner mode, if even that fails, use expansion
15323         through memory.
15324
15325         PR middle-end/83623
15326         * expmed.c (expand_shift_1): For 2-byte rotates by BITS_PER_UNIT,
15327         check for bswap in mode rather than HImode and use that in expand_unop
15328         too.
15329 \f
15330 Copyright (C) 2018 Free Software Foundation, Inc.
15331
15332 Copying and distribution of this file, with or without modification,
15333 are permitted in any medium without royalty provided the copyright
15334 notice and this notice are preserved.