gcc/ChangeLog

   1 2018-06-05  Uros Bizjak  <ubizjak@gmail.com>
   2
   3         * config/i386/i386.md (simple_return_indirect_internal): New expander.
   4         (*simple_return_indirect_internal<mode>): Rename from
   5         simple_return_indirect_internal.  Use W mode iterator.
   6         (rstorssp): New expander.
   7         (*rstorssp<mode>): Rename from rstorssp.  Use P mode iterator.
   8         (clrssbsy): New expander.
   9         (*clrssbsy<mode>): Rename from clrssbsy.  Use P mode iterator.
  10
  11 2018-06-05  Andre Vieira  <andre.simoesdiasvieira@arm.com>
  12
  13         * config/arm/arm_cmse.h (cmse_nsfptr_create): Change typeof to
  14         __typeof__.
  15         (cmse_check_pointed_object): Likewise.
  16
  17 2018-06-05  Martin Liska  <mliska@suse.cz>
  18
  19         PR gcov-profile/47618
  20         * doc/invoke.texi: Document how -fprofile-dir format
  21         is extended.
  22
  23 2018-06-05  Richard Biener  <rguenther@suse.de>
  24
  25         * tree-cfgcleanup.c (cleanup_control_flow_pre): For edge
  26         removal pretend DOM info isn't available so we do not update
  27         it and only remove edges, not dominated blocks.  Actually free
  28         DOM info in case we removed something.  Remove unreachable blocks.
  29         (mfb_keep_latches): Work with either DOM info or marked backedges.
  30         (cleanup_tree_cfg_noloop): Do not remove unreachable blocks
  31         first.  Mark backedges if DOM info isn't available.
  32         (Re-)compute DOM info after cleanup_control_flow_pre.
  33
  34 2018-06-05  Richard Biener  <rguenther@suse.de>
  35
  36         * tree-cfg.c (struct locus_discrim_map): Store line, not location.
  37         (locus_discrim_hasher::hash): Adjust.
  38         (locus_discrim_hasher::equal): Likewise.
  39         (next_discriminator_for_locus): Work on line directly.
  40         (same_line_p): Pass in expanded locus1 as well.
  41         (assign_discriminators): Avoid redundant location expansions.
  42
  43 2018-06-05  Richard Biener  <rguenther@suse.de>
  44
  45         PR tree-optimization/86046
  46         * tree-ssa.c (maybe_optimize_var): Clear DECL_GIMPLE_REG_P
  47         if required after clearing TREE_ADDRESSABLE.
  48
  49 2018-06-05  Richard Biener  <rguenther@suse.de>
  50
  51         PR tree-optimization/86047
  52         * tree-ssa-loop.c (for_each_index): Glob handling of all
  53         decls and constants and really handle all of them.
  54
  55 2018-06-05  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
  56
  57         PR target/81497
  58         * config/arm/arm-builtins.c (arm_type_qualifiers): Add
  59         qualifier_void_pointer and qualifier_const_void_pointer.
  60         (arm_ldc_qualifiers, arm_stc_qualifiers): Use the above.
  61         (arm_init_builtins): Handle the above.
  62         * config/arm/arm_acle.h (__arm_cdp, __arm_ldc, __arm_ldcl, __arm_stc,
  63         __arm_stcl, __arm_mcr, __arm_cdp2, __arm_ldc2, __arm_ldcl2, __arm_stc2,
  64         __arm_stcl2,__arm_mcr2, __arm_mcrr, __arm_mcrr2): Remove return for
  65         void intrinsics.
  66
  67 2018-06-05  Martin Liska  <mliska@suse.cz>
  68
  69         * auto-profile.c (read_autofdo_file): Do not use
  70         gcov_ctr_summary struct.
  71         (afdo_callsite_hot_enough_for_early_inline): Likewise.
  72         * coverage.c (struct counts_entry): Likewise.
  73         (read_counts_file): Read just single summary entry.
  74         (get_coverage_counts): Use gcov_summary struct.
  75         * coverage.h (get_coverage_counts): Likewise.
  76         * gcov-dump.c (dump_working_sets): Likewise.
  77         (tag_summary): Dump just single summary.
  78         * gcov-io.c (gcov_write_summary): Write just histogram
  79         summary.
  80         (gcov_read_summary): Read just single summary.
  81         (compute_working_sets): Use gcov_summary struct.
  82         * gcov-io.h (GCOV_TAG_SUMMARY_LENGTH): Remove usage
  83         of GCOV_COUNTERS_SUMMABLE.
  84         (GCOV_COUNTERS_SUMMABLE): Remove.
  85         (GCOV_FIRST_VALUE_COUNTER): Replace with
  86         GCOV_COUNTER_V_INTERVAL.
  87         (struct gcov_ctr_summary): Remove.
  88         (struct gcov_summary): Directly use fields of former
  89         gcov_ctr_summary.
  90         (compute_working_sets): Use gcov_summary struct.
  91         * gcov.c (read_count_file): Do not use ctrs fields.
  92         * lto-cgraph.c (merge_profile_summaries): Use gcov_summary
  93         struct.
  94         * lto-streamer.h (struct GTY): Make profile_info gcov_summary
  95         struct.
  96         * profile.c: Likewise.
  97         * profile.h: Likewise.
  98
  99 2018-06-05  Martin Liska  <mliska@suse.cz>
 100
 101         PR gcov-profile/84846
 102         * gcov.c (output_lines): Print working directory only
 103         in intermediate format.
 104
 105 2018-06-05  Andreas Krebbel  <krebbel@linux.ibm.com>
 106
 107         * config/s390/s390-builtin-types.def: Add void function type.
 108         * config/s390/s390-builtins.def: Use the function type for the
 109         tbeginc builtin.
 110
 111 2018-06-04  Jim Wilson  <jimw@sifive.com>
 112
 113         * config/riscv/riscv-protos.h (riscv_expand_epilogue): Change bool arg
 114         to int.
 115         * config/riscv/riscv.c (riscv_for_each_saved_reg): New args epilogue
 116         and maybe_eh_return.  Change regno to unsigned int.  Use new args to
 117         handle EH_RETURN_DATA_REGNO registers properly.
 118         (riscv_expand_prologue): Pass new args to riscv_for_each_saved_reg.
 119         (riscv_expand_epilogue): Update comment.  Change argument name and
 120         type.  Update code to use new name and type.  Pass new args to
 121         riscv_for_each_saved_reg.  Only use EH_RETURN_STACKADJ_RTX when
 122         EXCEPTION_RETURN.
 123         * config/riscv/riscv.md (NORMAL_RETURN): New.
 124         (SIBCALL_RETURN, EXCEPTION_RETURN): New.
 125         (epilogue, sibcall_epilogue): Update riscv_expand_epilogue arg.
 126         (eh_return): Call gen_eh_return_internal and emit barrier.
 127         (eh_return_internal): Call riscv_expand_epilogue.
 128
 129 2018-06-04  Eric Botcazou  <ebotcazou@adacore.com>
 130
 131         * gimple-ssa-store-merging.c (struct merged_store_group): Move up
 132         bit_insertion field and declare can_be_merged_into method.
 133         (merged_store_group::can_be_merged_into): New method.
 134         (imm_store_chain_info::coalesce_immediate): Call it to decide whether
 135         consecutive non-overlapping stores can be merged.  Turn MEM_REF stores
 136         into BIT_INSERT_EXPR stores if the group contains a non-MEM_REF store.
 137
 138 2018-06-04  Richard Biener  <rguenther@suse.de>
 139
 140         PR tree-optimization/85955
 141         * builtins.c (fold_builtin_sincos): Convert pointers to
 142         destination to appropriate type before dereferencing.
 143
 144 2018-06-04  Segher Boessenkool  <segher@kernel.crashing.org>
 145
 146         * config/rs6000/rs6000.md (abs<mode>2 for FLOAT128): Handle IFmode.
 147
 148 2018-06-04  Richard Sandiford  <richard.sandiford@linaro.org>
 149
 150         * expr.c (expand_expr_real_1): Force the operand into memory if
 151         its TYPE_MODE is BLKmode and if there is no integer mode for
 152         the number of bits being extracted.
 153
 154 2018-06-04  Jakub Jelinek  <jakub@redhat.com>
 155
 156         PR target/85832
 157         PR target/86036
 158         * config/i386/sse.md (<avx512>_eq<mode>3<mask_scalar_merge_name>_1):
 159         Use vptestnm rather than vptestm in (=Yc,v,C) variant.
 160
 161 2018-06-04  Richard Biener  <rguenther@suse.de>
 162
 163         * tree-cfgcleanup.c (cleanup_tree_cfg_1): Fold into...
 164         (cleanup_tree_cfg_noloop): ... single caller.  Do
 165         start_recording_case_labels later.
 166
 167 2018-06-04  Sebastian Peryt  <sebastian.peryt@intel.com>
 168
 169         * config/i386/cldemoteintrin.h: Change define from _X86INTRIN_H_INCLUDED
 170         to _IMMINTRIN_H_INCLUDED.
 171         * config/i386/pconfigintrin.h: Ditto.
 172         * config/i386/waitpkgintrin.h: Ditto.
 173         * config/i386/immintrin.h: Add includes for sgxintrin.h,
 174         pconfigintrin.h, waitpkgintrin.h and cldemoteintrin.h.
 175         * config/i386/x86intrin.h: Remove includes for mintrin.h, xmmintrin.h,
 176         emmintrin.h, pmmintrin.h, tmmintrin.h, smmintrin.h, wmmintrin.h,
 177         bmiintrin.h, bmi2intrin.h, lzcntintrin.h, sgxintrin.h, pconfigintrin.h,
 178         waitpkgintrin.h and cldemoteintrin.h.
 179
 180 2018-06-04  Richard Biener  <rguenther@suse.de>
 181
 182         PR tree-optimization/86038
 183         * tracer.c (find_best_successor): Check probability for
 184         being initialized, bail out if not.
 185
 186 2018-06-04  Richard Earnshaw  <rearnsha@arm.com>
 187
 188         PR target/86003
 189         * config/arm/arm-cpus.in (ALL_QUIRKS): Add xscale feature to the list
 190         of bits to ignore when comparing architectures.
 191
 192 2018-06-04  Jakub Jelinek  <jakub@redhat.com>
 193
 194         PR tree-optimization/69615
 195         * fold-const.c (merge_ranges): If range1 is - [x, x] and x is the
 196         maximum or minimum of the type, try to merge it also as if
 197         range1 is + [-, x - 1] or + [x + 1, -].
 198
 199         PR c++/86025
 200         * tree.c (inchash::add_expr): Handle IDENTIFIER_NODE.
 201
 202 2018-06-03  Eric Botcazou  <ebotcazou@adacore.com>
 203
 204         PR tree-optimization/86034
 205         * gimple-ssa-store-merging.c (output_merged_store): Convert the RHS to
 206         the unsigned bitfield type in a bit insertion sequence if it does not
 207         have a larger precision than the bitfield size.
 208         (process_store): Also bypass widening conversions for BIT_INSERT_EXPR.
 209
 210 2018-06-03  Kito Cheng  <kito.cheng@gmail.com>
 211
 212         * config/nds32/nds32-peephole2.md: Add new patterns for code size.
 213
 214 2018-06-03  Chung-Ju Wu  <jasonwucj@gmail.com>
 215
 216         * config/nds32/nds32-opts.h (nds32_arch_type): Add ARCH_V3J.
 217         * config/nds32/nds32.c (nds32_option_override): Consider ARCH_V3J.
 218         * config/nds32/nds32.h (TARGET_ISA_V3): Add ARCH_V3J checking.
 219         * config/nds32/nds32.opt (march): Add enum value Value(ARCH_V3J).
 220
 221 2018-06-03  Chung-Ju Wu  <jasonwucj@gmail.com>
 222
 223         * common/config/nds32/nds32-common.c (nds32_option_optimization_table):
 224         Disable -fdelete-null-pointer-checks for ELF toolchain.
 225
 226 2018-06-02  Chung-Ju Wu  <jasonwucj@gmail.com>
 227             Kito Cheng  <kito.cheng@gmail.com>
 228
 229         * config.gcc (nds32*): Use nds32-linux.opt and nds32-elf.opt.
 230         (nds32le-*-*, nds32be-*-*): Integrate checking process.
 231         (nds32*-*-*): Add glibc and uclibc conditions.
 232         * common/config/nds32/nds32-common.c (nds32_except_unwind_info): New.
 233         (TARGET_EXCEPT_UNWIND_INFO): Define.
 234         * config/nds32/elf.h: New file.
 235         * config/nds32/linux.h: New file.
 236         * config/nds32/nds32-elf.opt: New file.
 237         * config/nds32/nds32-linux.opt: New file.
 238         * config/nds32/nds32-fp-as-gp.c
 239         (pass_nds32_fp_as_gp::gate): Consider TARGET_LINUX_ABI.
 240         * config/nds32/nds32.c (nds32_conditional_register_usage): Consider
 241         TARGET_LINUX_ABI.
 242         (nds32_asm_file_end): Ditto.
 243         (nds32_print_operand): Ditto.
 244         (nds32_insert_attributes): Ditto.
 245         (nds32_init_libfuncs): New function.
 246         (TARGET_HAVE_TLS): Define.
 247         (TARGET_INIT_LIBFUNCS): Define.
 248         * config/nds32/nds32.h (TARGET_DEFAULT_RELAX): Apply different relax
 249         spec content.
 250         (TARGET_ELF): Apply different mcmodel setting.
 251         (LINK_SPEC, LIB_SPEC, STARTFILE_SPEC, ENDFILE_SPEC): The content has
 252         been migrated into elf.h and linux.h files.
 253         * config/nds32/nds32.md (add_pc): Consider TARGET_LINUX_ABI.
 254         * config/nds32/nds32.opt (mvh): Consider TARGET_LINUX_ABI.
 255         (mcmodel): The content has been migrated into nds32-elf.opt and
 256         nds32-linux.opt files.
 257         * config/nds32/t-elf: New file.
 258         * config/nds32/t-linux: New file.
 259
 260 2018-06-02  Chung-Ju Wu  <jasonwucj@gmail.com>
 261             Shiva Chen  <shiva0217@gmail.com>
 262
 263         * config/nds32/constants.md (unspec_volatile_element): Add
 264         UNSPEC_VOLATILE_OMIT_FP_BEGIN and UNSPEC_VOLATILE_OMIT_FP_END.
 265         * config/nds32/nds32-fp-as-gp.c: New implementation of fp_as_gp
 266         optimization.
 267         * config/nds32/nds32-protos.h (nds32_naked_function_p): Declare.
 268         (make_pass_nds32_fp_as_gp): Declare.
 269         * config/nds32/nds32.c (nds32_register_passes): Add fp_as_gp as one
 270         optmization pass.
 271         (nds32_asm_function_end_prologue): Remove unused asm output.
 272         (nds32_asm_function_begin_epilogue): Remove unused asm output.
 273         (nds32_asm_file_start): Output necessary fp_as_gp information.
 274         (nds32_option_override): Adjust register usage.
 275         (nds32_expand_prologue): Consider fp_as_gp situation.
 276         (nds32_expand_prologue_v3push): Consider fp_as_gp situation.
 277         * config/nds32/nds32.md (prologue): Check fp_as_gp_p and naked_p.
 278         (epilogue): Ditto.
 279         (return): Ditto.
 280         (simple_return): Ditto.
 281         (omit_fp_begin): Output special directive for fp_as_gp.
 282         (omit_fp_end): Output special directive for fp_as_gp.
 283         * config/nds32/nds32.opt (mfp-as-gp, mno-fp-as-gp, mforce-fp-as-gp,
 284         mforbid-fp-as-gp): New options.
 285
 286 2018-06-01  Mark Wielaard  <mark@klomp.org>
 287
 288         * dwarf2out.c (dwarf2out_finish): Remove generation of
 289         DW_AT_loclists_base.
 290
 291 2018-06-01  Eric Botcazou  <ebotcazou@adacore.com>
 292
 293         * gimple-ssa-store-merging.c: Include gimple-fold.h.
 294         (struct store_immediate_info): Document BIT_INSERT_EXPR stores.
 295         (struct merged_store_group): Add bit_insertion field.
 296         (dump_char_array): Use standard hexadecimal format.
 297         (merged_store_group::merged_store_group): Set bit_insertion to false.
 298         (merged_store_group::apply_stores): Use optimal buffer size.  Deal
 299         with BIT_INSERT_EXPR stores.  Move up code updating the mask and
 300         also print the mask in the dump file.
 301         (pass_store_merging::gate): Minor tweak.
 302         (imm_store_chain_info::coalesce_immediate): Fix wrong association
 303         of stores with groups in dump.  Allow coalescing of BIT_INSERT_EXPR
 304         stores with INTEGER_CST stores.
 305         (count_multiple_uses) <BIT_INSERT_EXPR>: New case.
 306         (imm_store_chain_info::output_merged_store): Add try_bitpos variable
 307         and use it throughout.  Generate bit insertion sequences if need be.
 308         (pass_store_merging::process_store): Remove redundant condition.
 309         Record stores from a SSA name to a bit-field with BIT_INSERT_EXPR.
 310
 311 2018-06-01  Segher Boessenkool  <segher@kernel.crashing.org>
 312
 313         * config/rs6000/rs6000.c (rs6000_mangle_type): Change the mangling of
 314         the 128-bit floating point types.  Fix function comment.
 315
 316 2018-06-01  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 317
 318         * config/aarch64/aarch64-simd.md
 319         (aarch64_simd_vec_unpack<su>_lo_<mode>): Use UXTL and SXTL assembler
 320         mnemonics.
 321         (aarch64_simd_vec_unpack<su>_hi_<mode>): Use UXTL2 and SXTL2 assembler
 322         mnemonics.
 323
 324 2018-06-01  Richard Sandiford  <richard.sandiford@linaro.org>
 325
 326         PR tree-optimization/85989
 327         * gimple-ssa-backprop.c (backprop::m_visited_phis): New member
 328         variable.
 329         (backprop::intersect_uses): Check it when deciding whether this
 330         is a backedge reference.
 331         (backprop::process_block): Add each phi to m_visited_phis
 332         after visiting it, then clear it at the end.
 333
 334 2018-06-01  Richard Biener  <rguenther@suse.de>
 335
 336         * tree-vectorizer.h (vect_dr_stmt): New function.
 337         (vect_get_load_cost): Adjust.
 338         (vect_get_store_cost): Likewise.
 339         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence):
 340         Use vect_dr_stmt instead of DR_SMTT.
 341         (vect_record_base_alignments): Likewise.
 342         (vect_calculate_target_alignment): Likewise.
 343         (vect_compute_data_ref_alignment): Likewise and make static.
 344         (vect_update_misalignment_for_peel): Likewise.
 345         (vect_verify_datarefs_alignment): Likewise.
 346         (vector_alignment_reachable_p): Likewise.
 347         (vect_get_data_access_cost): Likewise.  Pass down
 348         vinfo to vect_get_load_cost/vect_get_store_cost instead of DR.
 349         (vect_get_peeling_costs_all_drs): Likewise.
 350         (vect_peeling_hash_get_lowest_cost): Likewise.
 351         (vect_enhance_data_refs_alignment): Likewise.
 352         (vect_find_same_alignment_drs): Likewise.
 353         (vect_analyze_data_refs_alignment): Likewise.
 354         (vect_analyze_group_access_1): Likewise.
 355         (vect_analyze_group_access): Likewise.
 356         (vect_analyze_data_ref_access): Likewise.
 357         (vect_analyze_data_ref_accesses): Likewise.
 358         (vect_vfa_segment_size): Likewise.
 359         (vect_small_gap_p): Likewise.
 360         (vectorizable_with_step_bound_p): Likewise.
 361         (vect_prune_runtime_alias_test_list): Likewise.
 362         (vect_analyze_data_refs): Likewise.
 363         (vect_supportable_dr_alignment): Likewise.
 364         * tree-vect-loop-manip.c (get_misalign_in_elems): Likewise.
 365         (vect_gen_prolog_loop_niters): Likewise.
 366         * tree-vect-loop.c (vect_analyze_loop_2): Likewise.
 367         * tree-vect-patterns.c (vect_recog_bool_pattern): Do not
 368         modify DR_STMT.
 369         (vect_recog_mask_conversion_pattern): Likewise.
 370         (vect_try_gather_scatter_pattern): Likewise.
 371         * tree-vect-stmts.c (vect_model_store_cost): Pass stmt_info
 372         to vect_get_store_cost.
 373         (vect_get_store_cost): Get stmt_info instead of DR.
 374         (vect_model_load_cost): Pass stmt_info to vect_get_load_cost.
 375         (vect_get_load_cost): Get stmt_info instead of DR.
 376
 377 2018-06-01  Richard Biener  <rguenther@suse.de>
 378
 379         PR middle-end/86017
 380         * gimple-fold.c (var_decl_component_p): Also allow offsetted
 381         vars wrapped in MEM_REFs.
 382
 383 2018-06-01  Richard Sandiford  <richard.sandiford@linaro.org>
 384
 385         * config/aarch64/aarch64.c (aarch64_ira_change_pseudo_allocno_class):
 386         Fix subreg tests so that we only return a choice between
 387         GENERAL_REGS and FP_REGS if the original classes included both.
 388
 389 2018-06-01  Richard Biener  <rguenther@suse.de>
 390
 391         PR ipa/85960
 392         * tree-ssa-structalias.c (get_function_part_constraint):
 393         Handle NULL fi->decl.
 394         (find_func_aliases_for_call): Properly handle indirect
 395         fi from direct call.
 396         (find_func_clobbers): Likewise.
 397         (ipa_pta_execute): Likewise.
 398         (create_variable_info_for): For functions that are ifunc_resolver
 399         resolve to a varinfo that contains the result of the resolver call.
 400         (associate_varinfo_to_alias): Do not treat ifunc resolvers as
 401         aliases.
 402
 403 2018-05-31  Michael Collison  <michael.collison@arm.com>
 404
 405         * config/aarch64/aarch64.md:
 406         (*fix_to_zero_extenddfdi2): New pattern.
 407         * gcc.target/aarch64/fix_extend1.c: New testcase.
 408
 409 2018-05-31  Qing Zhao <qing.zhao@oracle.com>
 410
 411         PR middle-end/78809
 412         PR middle-end/83026
 413         * builtins.c (expand_builtin): Add the handling of BUILT_IN_STRCMP_EQ
 414         and BUILT_IN_STRNCMP_EQ.
 415         * builtins.def: Add new builtins BUILT_IN_STRCMP_EQ and
 416         BUILT_IN_STRNCMP_EQ.
 417         * gimple-fold.c (gimple_fold_builtin_string_compare): Add the
 418         handling of BUILTIN_IN_STRCMP_EQ and BUILT_IN_STRNCMP_EQ.
 419         (gimple_fold_builtin): Likewise.
 420         * tree-ssa-strlen.c (compute_string_length): New function.
 421         (determine_min_obsize): New function.
 422         (handle_builtin_string_cmp): New function to handle calls to
 423         string compare functions.
 424         (strlen_optimize_stmt): Add handling to builtin string compare
 425         calls.
 426         * tree-ssa-structalias.c (find_func_aliases_for_builtin_call):
 427         Add the handling of BUILT_IN_STRCMP_EQ and BUILT_IN_STRNCMP_EQ.
 428         * tree.c (build_common_builtin_nodes): Add new defines of
 429         BUILT_IN_STRNCMP_EQ and BUILT_IN_STRCMP_EQ.
 430
 431 2018-05-31  Jakub Jelinek  <jakub@redhat.com>
 432
 433         PR target/85984
 434         * bb-reorder.c (pass_partition_blocks::gate): Return false for
 435         functions with naked attribute.
 436
 437 2018-05-31  Uros Bizjak  <ubizjak@gmail.com>
 438
 439         * config/i386/sse.md (avx_vec_concat<mode>):
 440         Substitute concat_tg_mode mode attribute with xtg_mode.
 441         (<mask_codefor>avx512dq_broadcast<mode><mask_name>_1): Ditto.
 442         (concat_tg_mode): Remove mode attribute.
 443
 444 2018-05-31  Martin Sebor  <msebor@redhat.com>
 445
 446         PR c/82063
 447         * calls.c (alloc_max_size): Correct a logic error/typo.
 448         Treat excessive arguments as infinite.  Warn for invalid arguments.
 449         * doc/invoke.texi (-Walloc-size-larger-than): Update.
 450
 451 2018-05-31  H.J. Lu  <hongjiu.lu@intel.com>
 452
 453         PR target/85829
 454         * config/i386/x86-tune.def: Re-enable partial_reg_dependency
 455         and movx for Haswell.
 456
 457 2018-05-31  Chung-Lin Tang  <cltang@codesourcery.com>
 458             Cesar Philippidis  <cesar@codesourcery.com>
 459
 460         PR middle-end/85879
 461         * gimplify.c (gimplify_adjust_omp_clauses): Add 'remove = true'
 462         when emitting error on private/firstprivate reductions.
 463         * omp-low.c (lower_omp_target): Avoid reference-type processing
 464         on pointers for firstprivate clause.
 465
 466 2018-05-31 Sameera Deshpande <sameera.deshpande@linaro.org>
 467
 468         * config/aarch64/aarch64-simd-builtins.def (ld1x3): New.
 469         (st1x2): Likewise.
 470         (st1x3): Likewise.
 471         * config/aarch64/aarch64-simd.md
 472         (aarch64_ld1x3<VALLDIF:mode>): New pattern.
 473         (aarch64_ld1_x3_<mode>): Likewise
 474         (aarch64_st1x2<VALLDIF:mode>): Likewise
 475         (aarch64_st1_x2_<mode>): Likewise
 476         (aarch64_st1x3<VALLDIF:mode>): Likewise
 477         (aarch64_st1_x3_<mode>): Likewise
 478         * config/aarch64/arm_neon.h (vld1_u8_x3): New function.
 479         (vld1_s8_x3): Likewise.
 480         (vld1_u16_x3): Likewise.
 481         (vld1_s16_x3): Likewise.
 482         (vld1_u32_x3): Likewise.
 483         (vld1_s32_x3): Likewise.
 484         (vld1_u64_x3): Likewise.
 485         (vld1_s64_x3): Likewise.
 486         (vld1_f16_x3): Likewise.
 487         (vld1_f32_x3): Likewise.
 488         (vld1_f64_x3): Likewise.
 489         (vld1_p8_x3): Likewise.
 490         (vld1_p16_x3): Likewise.
 491         (vld1_p64_x3): Likewise.
 492         (vld1q_u8_x3): Likewise.
 493         (vld1q_s8_x3): Likewise.
 494         (vld1q_u16_x3): Likewise.
 495         (vld1q_s16_x3): Likewise.
 496         (vld1q_u32_x3): Likewise.
 497         (vld1q_s32_x3): Likewise.
 498         (vld1q_u64_x3): Likewise.
 499         (vld1q_s64_x3): Likewise.
 500         (vld1q_f16_x3): Likewise.
 501         (vld1q_f32_x3): Likewise.
 502         (vld1q_f64_x3): Likewise.
 503         (vld1q_p8_x3): Likewise.
 504         (vld1q_p16_x3): Likewise.
 505         (vld1q_p64_x3): Likewise.
 506         (vst1_s64_x2): Likewise.
 507         (vst1_u64_x2): Likewise.
 508         (vst1_f64_x2): Likewise.
 509         (vst1_s8_x2): Likewise.
 510         (vst1_p8_x2): Likewise.
 511         (vst1_s16_x2): Likewise.
 512         (vst1_p16_x2): Likewise.
 513         (vst1_s32_x2): Likewise.
 514         (vst1_u8_x2): Likewise.
 515         (vst1_u16_x2): Likewise.
 516         (vst1_u32_x2): Likewise.
 517         (vst1_f16_x2): Likewise.
 518         (vst1_f32_x2): Likewise.
 519         (vst1_p64_x2): Likewise.
 520         (vst1q_s8_x2): Likewise.
 521         (vst1q_p8_x2): Likewise.
 522         (vst1q_s16_x2): Likewise.
 523         (vst1q_p16_x2): Likewise.
 524         (vst1q_s32_x2): Likewise.
 525         (vst1q_s64_x2): Likewise.
 526         (vst1q_u8_x2): Likewise.
 527         (vst1q_u16_x2): Likewise.
 528         (vst1q_u32_x2): Likewise.
 529         (vst1q_u64_x2): Likewise.
 530         (vst1q_f16_x2): Likewise.
 531         (vst1q_f32_x2): Likewise.
 532         (vst1q_f64_x2): Likewise.
 533         (vst1q_p64_x2): Likewise.
 534         (vst1_s64_x3): Likewise.
 535         (vst1_u64_x3): Likewise.
 536         (vst1_f64_x3): Likewise.
 537         (vst1_s8_x3): Likewise.
 538         (vst1_p8_x3): Likewise.
 539         (vst1_s16_x3): Likewise.
 540         (vst1_p16_x3): Likewise.
 541         (vst1_s32_x3): Likewise.
 542         (vst1_u8_x3): Likewise.
 543         (vst1_u16_x3): Likewise.
 544         (vst1_u32_x3): Likewise.
 545         (vst1_f16_x3): Likewise.
 546         (vst1_f32_x3): Likewise.
 547         (vst1_p64_x3): Likewise.
 548         (vst1q_s8_x3): Likewise.
 549         (vst1q_p8_x3): Likewise.
 550         (vst1q_s16_x3): Likewise.
 551         (vst1q_p16_x3): Likewise.
 552         (vst1q_s32_x3): Likewise.
 553         (vst1q_s64_x3): Likewise.
 554         (vst1q_u8_x3): Likewise.
 555         (vst1q_u16_x3): Likewise.
 556         (vst1q_u32_x3): Likewise.
 557         (vst1q_u64_x3): Likewise.
 558         (vst1q_f16_x3): Likewise.
 559         (vst1q_f32_x3): Likewise.
 560         (vst1q_f64_x3): Likewise.
 561         (vst1q_p64_x3): Likewise.
 562
 563 2018-05-30  Jozef Lawrynowicz  <jozef.l@mittosystems.com>
 564
 565         * config/msp430/msp430.c (msp430_output_labelref): Prepend
 566         user_label_prefix to name.
 567
 568         * tree-core.h: Update comment about the format of NAME string
 569         passed to handler in attribute_spec.
 570
 571         * config/msp430/msp430.md: Remove erroneous subreg expression from
 572         zero_extendqisi2 insn pattern. Remove msp430x ISA restriction on
 573         zero_extend{q,h}isi2.
 574
 575 2018-05-30  Borislav Petkov  <bp@suse.de>
 576
 577         * doc/extend.texi: Document some architecture specific
 578         constraints and sort entries.
 579
 580 2018-05-30  Martin Sebor  <msebor@redhat.com>
 581
 582         PR middle-end/85369
 583         * builtins.c (expand_builtin_stpcpy_1): New function.
 584         (expand_builtin_stpcpy): Call it, and call maybe_warn_nonstring_arg
 585         only if the former succeeds.
 586
 587 2018-05-31 Sameera Deshpande <sameera.deshpande@linaro.org>
 588
 589         * config/aarch64/aarch64-cores.def (saphira) : Add support for ARMv8.4
 590         in saphira.
 591
 592 2018-05-30  Jan Hubicka  <hubicka@ucw.cz>
 593
 594         * doc/invoke.texi (-flinker-output): Document
 595
 596 2018-05-30  Jan Hubicka  <hubicka@ucw.cz>
 597
 598         * passes.c (ipa_write_summaries): Only modify statements if body
 599         is in memory.
 600         * cgraphunit.c (ipa_passes): Also produce intermeidate code when
 601         incrementally linking.
 602         (ipa_passes): Likewise.
 603         * lto-cgraph.c (lto_output_node): When incrementally linking do not
 604         pass down resolution info.
 605         * common.opt (flag_incremental_link): Update info.
 606         * gcc.c (plugin specs): Turn flinker-output=* to
 607         -plugin-opt=-linker-output-known
 608         * toplev.c (compile_file): Also cut compilation when doing incremental
 609         link.
 610         * flag-types. (enum lto_partition_model): Add
 611         LTO_LINKER_OUTPUT_NOLTOREL.
 612         (invoke.texi): Add -flinker-output docs.
 613         * ipa.c (symbol_table::remove_unreachable_nodes): Handle LTO incremental
 614         link same way as WPA; do not stream in dead initializers.
 615
 616         * dwarf2out.c (dwarf2out_die_ref_for_decl,
 617         darf2out_register_external_decl): Support incremental link.
 618
 619 2018-05-30  Jan Hubicka  <hubicka@ucw.cz>
 620
 621         * lto-opts.c (lto_write_options): Skip OPT_dumpdir, OPT_fresolution_.
 622
 623 2018-05-30  Jan Hubicka  <hubicka@ucw.cz>
 624
 625         * lto-wrapper.c (debug_objcopy): Add rename parameter; pass
 626         it down to simple_object_copy_lto_debug_sections.
 627         (run_gcc): Determine incremental LTO link time and configure
 628         lto1 into non-wpa mode, disable renaming of debug sections.
 629
 630 2018-05-30  Kelvin Nilsen  <kelvin@gcc.gnu.org>
 631
 632         * doc/extend.texi (PowerPC AltiVec Built-in Functions): Remove
 633         descriptions of various incorrectly documented functions.
 634
 635 2018-05-30  Andre Vieira  <andre.simoesdiasvieira@arm.com>
 636
 637         Revert:
 638         * config/aarch64/predicates.md (aarch64_mem_pair_lanes_operand): Make
 639         address check not strict.
 640
 641 2018-05-30  Richard Biener  <rguenther@suse.de>
 642
 643         PR tree-optimization/85964
 644         * tracer.c (better_p): Drop initialized count check, we only
 645         call the function with initialized counts now.
 646         (find_best_successor): Do find a best edge if one
 647         has uninitialized count.
 648         (find_best_predecessor): Likewise.  Do BB frequency check only
 649         if count is initialized.
 650
 651 2017-05-30  Jackson Woodruff  <jackson.woodruff@arm.com>
 652
 653         * config/aarch64/aarch64.c (aarch64_host_wide_int_compare): New.
 654         (aarch64_ldrstr_offset_compare): New.
 655         (aarch64_operands_adjust_ok_for_ldpstp): Update to consider all
 656         load/store orderings.
 657         (aarch64_gen_adjusted_ldpstp): Likewise.
 658
 659 2018-05-30  Wilco Dijkstra  <wdijkstr@arm.com>
 660
 661         * config/aarch64/aarch64.c (aarch64_ira_change_pseudo_allocno_class):
 662         Check for subset of GENERAL_REGS and FP_REGS.
 663         * config/aarch64/aarch64-simd.md (aarch64_get_lane): Increase cost of
 664         r=w alternative.
 665
 666 2018-05-30  Richard Sandiford  <richard.sandiford@linaro.org>
 667
 668         * alias.c (adjust_offset_for_component_ref): Use poly_int_tree_p
 669         and wi::to_poly_offset.  Add the current offset and then check
 670         whether the sum fits, rather than using an unchecked addition of
 671         a checked term.  Check for a shwi rather than a uhwi.
 672         * expr.c (get_bit_range): Use tree_to_poly_uint64.
 673         (store_constructor): Use poly_int_tree_p.
 674         (expand_expr_real_1): Likewise.
 675         * function.c (assign_temp): Likewise.
 676         * fold-const.c (const_binop): Use poly_int_tree_p and
 677         wi::to_poly_offset.
 678         (fold_indirect_ref_1): Likewise.  Use multiple_p to attempt an exact
 679         division.
 680         * ipa-icf-gimple.c (func_checker::compare_operand): Use
 681         to_poly_offset for MEM offsets.
 682         * ipa-icf.c (sem_variable::equals): Likewise.
 683         * stor-layout.c (compute_record_mode): Use poly_int_tree_p.
 684         * tree-ssa-sccvn.c (ao_ref_init_from_vn_reference): Use
 685         wi::to_poly_offset for BIT_FIELD_REF offsets.
 686         (vn_reference_maybe_forwprop_address): Use poly_int_tree_p and
 687         wi::to_poly_offset.
 688         * var-tracking.c (emit_note_insn_var_location): Use
 689         tree_to_poly_uint64.
 690
 691 2018-05-29  Jim Wilson  <jimw@sifive.com>
 692
 693         * config/riscv/riscv.c (riscv_interrupt_type): Fix comment typo.
 694
 695 2018-05-29  Uros Bizjak  <ubizjak@gmail.com>
 696
 697         PR target/85950
 698         * config/i386/i386.md (l<rounding_insn><MODEF:mode><SWI48:mode>2):
 699         Enable for TARGET_SSE4_1 and generate rounds{s,d} and cvtts{s,d}2si{,q}
 700         sequence.
 701         (sse4_1_round<mode>2): Use nonimmediate_operand
 702         for operand 1 predicate.
 703
 704 2018-05-29  Martin Sebor  <msebor@redhat.com>
 705             Richard Biener  <rguenther@suse.de>
 706
 707         PR testsuite/85888
 708         * calls.c (get_size_range): Call determine_value_range instead
 709         of get_value_range..
 710         * tree-vrp.h (determine_value_range): Declared new function.
 711         * tree-vrp.c (determine_value_range_1, determine_value_range): New.
 712
 713 2018-05-29  Richard Biener  <rguenther@suse.de>
 714
 715         * tree-vect-data-refs.c (vect_preserves_scalar_order_p): Make
 716         sure to use non-pattern stmts for get_earlier_stmt arguments.
 717         * tree-vectorizer.h (get_earlier_stmt): Assert we do not get
 718         called on pattern stmts.
 719         (get_later_stmt): Likewise.
 720
 721 2018-05-29  Martin Liska  <mliska@suse.cz>
 722
 723         PR gcov-profile/85759
 724         * doc/gcov.texi: Document GCOV_ERROR_FILE and GCOV_EXIT_AT_ERROR
 725         env variables.
 726
 727 2018-05-29  Jakub Jelinek  <jakub@redhat.com>
 728
 729         * tree-cfg.c (verify_gimple_assign_unary): Add checking for
 730         VEC_UNPACK_*_EXPR.
 731         (verify_gimple_assign_binary): Check TYPE_VECTOR_SUBPARTS for
 732         VEC_PACK_*_EXPR.
 733
 734         PR target/85918
 735         * tree.def (VEC_UNPACK_FIX_TRUNC_HI_EXPR, VEC_UNPACK_FIX_TRUNC_LO_EXPR,
 736         VEC_PACK_FLOAT_EXPR): New tree codes.
 737         * tree-pretty-print.c (op_code_prio): Handle
 738         VEC_UNPACK_FIX_TRUNC_HI_EXPR and VEC_UNPACK_FIX_TRUNC_LO_EXPR.
 739         (dump_generic_node): Handle VEC_UNPACK_FIX_TRUNC_HI_EXPR,
 740         VEC_UNPACK_FIX_TRUNC_LO_EXPR and VEC_PACK_FLOAT_EXPR.
 741         * tree-inline.c (estimate_operator_cost): Likewise.
 742         * gimple-pretty-print.c (dump_binary_rhs): Handle VEC_PACK_FLOAT_EXPR.
 743         * fold-const.c (const_binop): Likewise.
 744         (const_unop): Handle VEC_UNPACK_FIX_TRUNC_HI_EXPR and
 745         VEC_UNPACK_FIX_TRUNC_LO_EXPR.
 746         * tree-cfg.c (verify_gimple_assign_unary): Likewise.
 747         (verify_gimple_assign_binary): Handle VEC_PACK_FLOAT_EXPR.
 748         * cfgexpand.c (expand_debug_expr): Handle VEC_UNPACK_FIX_TRUNC_HI_EXPR,
 749         VEC_UNPACK_FIX_TRUNC_LO_EXPR and VEC_PACK_FLOAT_EXPR.
 750         * expr.c (expand_expr_real_2): Likewise.
 751         * optabs.def (vec_packs_float_optab, vec_packu_float_optab,
 752         vec_unpack_sfix_trunc_hi_optab, vec_unpack_sfix_trunc_lo_optab,
 753         vec_unpack_ufix_trunc_hi_optab, vec_unpack_ufix_trunc_lo_optab): New
 754         optabs.
 755         * optabs.c (expand_widen_pattern_expr): For
 756         VEC_UNPACK_FIX_TRUNC_HI_EXPR and VEC_UNPACK_FIX_TRUNC_LO_EXPR use
 757         sign from result type rather than operand's type.
 758         (expand_binop_directly): For vec_packu_float_optab and
 759         vec_packs_float_optab allow result type to be different from operand's
 760         type.
 761         * optabs-tree.c (optab_for_tree_code): Handle
 762         VEC_UNPACK_FIX_TRUNC_HI_EXPR, VEC_UNPACK_FIX_TRUNC_LO_EXPR and
 763         VEC_PACK_FLOAT_EXPR.  Formatting fixes.
 764         * tree-vect-generic.c (expand_vector_operations_1):  Handle
 765         VEC_UNPACK_FIX_TRUNC_HI_EXPR, VEC_UNPACK_FIX_TRUNC_LO_EXPR and
 766         VEC_PACK_FLOAT_EXPR.
 767         * tree-vect-stmts.c (supportable_widening_operation): Handle
 768         FIX_TRUNC_EXPR.
 769         (supportable_narrowing_operation): Handle FLOAT_EXPR.
 770         * config/i386/i386.md (fixprefix, floatprefix): New code attributes.
 771         * config/i386/sse.md (*float<floatunssuffix>v2div2sf2): Rename to ...
 772         (float<floatunssuffix>v2div2sf2): ... this.  Formatting fix.
 773         (vpckfloat_concat_mode, vpckfloat_temp_mode, vpckfloat_op_mode): New
 774         mode attributes.
 775         (vec_pack<floatprefix>_float_<mode>): New expander.
 776         (vunpckfixt_mode, vunpckfixt_model, vunpckfixt_extract_mode): New mode
 777         attributes.
 778         (vec_unpack_<fixprefix>fix_trunc_lo_<mode>,
 779         vec_unpack_<fixprefix>fix_trunc_hi_<mode>): New expanders.
 780         * doc/md.texi (vec_packs_float_@var{m}, vec_packu_float_@var{m},
 781         vec_unpack_sfix_trunc_hi_@var{m}, vec_unpack_sfix_trunc_lo_@var{m},
 782         vec_unpack_ufix_trunc_hi_@var{m}, vec_unpack_ufix_trunc_lo_@var{m}):
 783         Document.
 784         * doc/generic.texi (VEC_UNPACK_FLOAT_HI_EXPR,
 785         VEC_UNPACK_FLOAT_LO_EXPR): Fix pasto in description.
 786         (VEC_UNPACK_FIX_TRUNC_HI_EXPR, VEC_UNPACK_FIX_TRUNC_LO_EXPR,
 787         VEC_PACK_FLOAT_EXPR): Document.
 788
 789 2018-05-29  Richard Biener  <rguenther@suse.de>
 790
 791         * tree-vectorizer.h (struct vec_info): Add stmt_vec_infos
 792         member.
 793         (stmt_vec_info_vec): Make pointer.
 794         (init_stmt_vec_info_vec): Remove.
 795         (free_stmt_vec_info_vec): Likewise.
 796         (set_stmt_vec_info_vec): New function.
 797         (free_stmt_vec_infos): Likewise.
 798         (vinfo_for_stmt): Adjust for stmt_vec_info_vec indirection.
 799         (set_vinfo_for_stmt): Likewise.
 800         (get_earlier_stmt): Likewise.
 801         (get_later_stmt): Likewise.
 802         * tree-vectorizer.c (stmt_vec_info_vec): Make pointer.
 803         (vec_info::vec_info): Allocate stmt_vec_infos and set the global.
 804         (vec_info::~vec_info): Free stmt_vec_infos.
 805         (vectorize_loops): Set the global stmt_vec_info_vec to NULL.
 806         Remove old init_stmt_vec_info_vec/free_stmt_vec_info_vec calls.
 807         (pass_slp_vectorize::execute): Likewise.
 808         * tree-vect-stmts.c (init_stmt_vec_info_vec): Remove.
 809         (free_stmt_vec_info_vec): Likewise.
 810         (set_stmt_vec_info_vec): New function.
 811         (free_stmt_vec_infos): Likewise.
 812         * tree-vect-loop.c (_loop_vec_info::~_loop_vec_info): Set
 813         the global stmt_vec_info_vec.
 814         * tree-parloops.c (gather_scalar_reductions): Use
 815         set_stmt_vec_info_vec/free_stmt_vec_infos and maintain a local
 816         vector.
 817
 818 2018-05-29  Richard Biener  <rguenther@suse.de>
 819
 820         * dominance.c (iterate_fix_dominators): Push/pop TV_DOMINANCE.
 821
 822 2018-05-29  Martin Liska  <mliska@suse.cz>
 823             David Malcolm  <dmalcolm@redhat.com>
 824
 825         * vec.c (test_reverse): New.
 826         (vec_c_tests): Add new test.
 827         * vec.h (vl_ptr>::reverse): New function.
 828
 829 2018-05-29  Gerald Pfeifer  <gerald@pfeifer.com>
 830
 831         * config.gcc: Identify FreeBSD 3.x and 4.x as unsupported.
 832
 833         * config/freebsd-spec.h (FBSD_LIB_SPEC): Only consider FreeBSD 5
 834         and later.
 835
 836 2018-05-28  Bernd Edlinger  <bernd.edlinger@hotmail.de>
 837
 838         * tree-dump.c (dump_node): Use splay_tree_delete_pointers.
 839
 840 2018-05-28  Richard Biener  <rguenther@suse.de>
 841
 842         PR tree-optimization/85933
 843         * tree-vect-data-refs.c (vect_record_base_alignments): Only
 844         look at stmts marked as vectorizable.
 845
 846 2018-05-28  Richard Biener  <rguenther@suse.de>
 847
 848         PR tree-optimization/85934
 849         * tree-vect-generic.c (expand_vector_operations_1): Hoist
 850         vector boolean check before scalar optimization.
 851
 852 2018-05-28  Jakub Jelinek  <jakub@redhat.com>
 853
 854         * doc/invoke.texi (ARM Options): Use @item instead of @itemx
 855         for armv5te.
 856
 857 2018-05-28  Mark Wielaard  <mark@klomp.org>
 858
 859         * dwarf2asm.c (dw2_asm_output_delta_uleb128): Add brackets around lab2
 860         if it is an expression containing a minus sign.
 861
 862 2018-05-27  John David Anglin  <danglin@gcc.gnu.org>
 863
 864         * config/pa/pa-linux.h (NEED_INDICATE_EXEC_STACK): Define to 0.
 865
 866 2018-05-27  Paul Koning  <ni1d@arrl.net>
 867
 868         * config/pdp11/pdp11.md (truncsihi2): Remove.
 869
 870 2018-05-27  Monk Chiang  <sh.chiang04@gmail.com>
 871             Chung-Ju Wu  <jasonwucj@gmail.com>
 872
 873         * config/nds32/nds32-intrinsic.md (unaligned_storedi): Modify patterns
 874         implementation.
 875         (unaligned_store_dw): Ditto.
 876         * config/nds32/nds32-memory-manipulation.c
 877         (nds32_expand_movmemsi_loop_known_size): Refactoring implementation.
 878         (nds32_gen_dup_4_byte_to_word_value): Rename to ...
 879         (nds32_gen_dup_4_byte_to_word_value_aux): ... this.
 880         (emit_setmem_word_loop): Rename to ...
 881         (emit_setmem_doubleword_loop): ... this.
 882         (nds32_gen_dup_4_byte_to_word_value): New function.
 883         (nds32_gen_dup_8_byte_to_double_word_value): New function.
 884         (nds32_expand_setmem_loop): Refine implementation.
 885         (nds32_expand_setmem_loop_v3m): Ditto.
 886         * config/nds32/nds32-multiple.md (unaligned_store_update_base_dw): New
 887         pattern.
 888
 889 2018-05-27  Chung-Ju Wu  <jasonwucj@gmail.com>
 890
 891         * config/nds32/nds32.md (bswapsi2, bswaphi2): New patterns.
 892
 893 2018-05-27  Chung-Ju Wu  <jasonwucj@gmail.com>
 894
 895         * config/nds32/nds32.c (nds32_attribute_table): Add "no_prologue".
 896         (nds32_init_machine_status): Initialize machine->attr_naked_p and
 897         machine->attr_no_prologue_p.
 898         (nds32_compute_stack_frame): Check "naked" and "no_prologue" attributes.
 899         (nds32_naked_function_p): Handle "naked" and "no_prologue" attributes.
 900         (nds32_expand_epilogue): Consider attr_naked_p.
 901         (nds32_expand_epilogue_v3pop): Likewise.
 902         (nds32_can_use_return_insn): Likewise.
 903         * config/nds32/nds32.h (machine_function): Add attr_naked_p and
 904         attr_no_prologue_p fields.
 905         * config/nds32/nds32.opt (mret-in-naked-func): New option.
 906
 907 2018-05-27  Jakub Jelinek  <jakub@redhat.com>
 908
 909         PR target/85918
 910         * config/i386/i386.md (fixunssuffix, floatunssuffix): New code
 911         attributes.
 912         * config/i386/sse.md
 913         (<floatsuffix>float<sseintvecmodelower><mode>2<mask_name><round_name>):
 914         Rename to ...
 915         (float<floatunssuffix><sseintvecmodelower><mode>2<mask_name><round_name>):
 916         ... this.
 917         (<floatsuffix>float<sselongvecmodelower><mode>2<mask_name><round_name>):
 918         Rename to ...
 919         (float<floatunssuffix><sselongvecmodelower><mode>2<mask_name><round_name>):
 920         ... this.
 921         (*<floatsuffix>floatv2div2sf2): Rename to ...
 922         (*float<floatunssuffix>v2div2sf2): ... this.
 923         (<floatsuffix>floatv2div2sf2_mask): Rename to ...
 924         (float<floatunssuffix>v2div2sf2_mask): ... this.
 925         (*<floatsuffix>floatv2div2sf2_mask_1): Rename to ...
 926         (*float<floatunssuffix>v2div2sf2_mask_1): ... this.
 927         (<fixsuffix>fix_truncv8dfv8si2<mask_name><round_saeonly_name>): Rename
 928         to ...
 929         (fix<fixunssuffix>_truncv8dfv8si2<mask_name><round_saeonly_name>):
 930         ... this.
 931         (<fixsuffix>fix_trunc<mode><sseintvecmodelower>2<mask_name><round_saeonly_name>):
 932         Rename to ...
 933         (fix<fixunssuffix>_trunc<mode><sseintvecmodelower>2<mask_name><round_saeonly_name>):
 934         ... this.
 935         (<fixsuffix>fix_trunc<mode><sselongvecmodelower>2<mask_name><round_saeonly_name>):
 936         Rename to ...
 937         (fix<fixunssuffix>_trunc<mode><sselongvecmodelower>2<mask_name><round_saeonly_name>):
 938         ... this.
 939         (<fixsuffix>fix_truncv2sfv2di2<mask_name>): Rename to ...
 940         (fix<fixunssuffix>_truncv2sfv2di2<mask_name>): ... this.
 941         (vec_pack_ufix_trunc_<mode>): Use gen_fixuns_truncv8dfv8si2 instead of
 942         gen_ufix_truncv8dfv8si2.
 943         * config/i386/i386-builtin.def (__builtin_ia32_cvttpd2uqq256_mask,
 944         __builtin_ia32_cvttpd2uqq128_mask, __builtin_ia32_cvttps2uqq256_mask,
 945         __builtin_ia32_cvttps2uqq128_mask, __builtin_ia32_cvtuqq2ps256_mask,
 946         __builtin_ia32_cvtuqq2ps128_mask, __builtin_ia32_cvtuqq2pd256_mask,
 947         __builtin_ia32_cvtuqq2pd128_mask, __builtin_ia32_cvttpd2udq512_mask,
 948         __builtin_ia32_cvtuqq2ps512_mask, __builtin_ia32_cvtuqq2pd512_mask,
 949         __builtin_ia32_cvttps2uqq512_mask, __builtin_ia32_cvttpd2uqq512_mask):
 950         Use fixuns instead ufix or floatuns instead ufloat in CODE_FOR_ names.
 951
 952 2018-05-24  H.J. Lu  <hongjiu.lu@intel.com>
 953
 954         PR target/85900
 955         PR target/85345
 956         * varasm.c (assemble_alias): Lookup ifunc attribute on error.
 957
 958 2018-05-25  Jim Wilson  <jimw@sifive.com>
 959
 960         * config/riscv/riscv-protos.h (riscv_epilogue_uses): New.
 961         * config/riscv/riscv.c (struct machine_function): Add
 962         interrupt_handler_p and attribute_checked_p fields.
 963         (riscv_attribute_table): Add interrupt.
 964         (riscv_interrupt_type_p): New.
 965         (riscv_save_reg_p): Save extra regs for interrupt handler.
 966         (riscv_use_save_libcall): Return false  for interrupt handler.
 967         (riscv_first_stack_step): Add forward declaration.
 968         (riscv_compute_frame_info): New local interrupt_save_t1.  Set it
 969         for interrupt handler with large frame.  Use it for saved reg list.
 970         (riscv_expand_prologue): Move flag_stack_usage_info support to
 971         eliminate duplication.
 972         (riscv_expand_epilogue): Generate mret for interrupt handler.
 973         (riscv_epilogue_uses): New.
 974         (riscv_can_use_return_insn): Return false for interrupt handler.
 975         (riscv_function_ok_for_sibcall): Likewise.
 976         (riscv_set_current_function): Add interrupt handler support.
 977         * config/riscv/riscv.h (EPILOGUE_USES): Call riscv_epilogue_uses.
 978         * config/riscv/riscv.md (UNSPECV_MRET): New.
 979         (GP_REGNUM): New.
 980         (riscv_frflags, riscv_fsflags): Use tab after opcode.
 981         (riscv_mret): New.
 982         * doc/extend.texi (RISC-V Function Attributes) <interrupt>: New.
 983
 984 2018-05-25  Bill Schmidt  <wschmidt@linux.ibm.com>
 985
 986         PR tree-optimization/85712
 987         * gimple-ssa-strength-reduction.c (replace_one_candidate): Skip if
 988         this candidate has already been replaced in-situ by a copy.
 989
 990 2018-05-25  Jason Merrill  <jason@redhat.com>
 991
 992         PR c++/80485 - inline function non-zero address.
 993         * symtab.c (nonzero_address): Check DECL_COMDAT.
 994
 995 2018-05-25  Uros Bizjak  <ubizjak@gmail.com>
 996
 997         PR target/83628
 998         * config/alpha/alpha.md (ashlsi3): New insn pattern.
 999         (*ashlsi_se): Rename from *ashldi_se.  Define as sign
1000         extension of SImode operation.  Use const123_operand predicate.
1001         (*saddsi_1): Remove.
1002         (*saddl_se_1): Ditto.
1003         (*ssubsi_1): Ditto.
1004         (*ssubl_se_1): Ditto.
1005         * config/alpha/predicates.md (const123_operand): New predicate.
1006         * config/alpha/constraints.md (P): Use IN_RANGE.
1007
1008 2018-05-25  Richard Biener  <rguenther@suse.de>
1009
1010         * tree-ssa-alias.h (refs_may_alias_p): Add tbaa_p bool parameter,
1011         defaulted to true.
1012         (ref_maybe_used_by_stmt_p): Likewise.
1013         (stmt_may_clobber_ref_p): Likewise.
1014         (stmt_may_clobber_ref_p_1): Likewise.
1015         * tree-ssa-alias.c (refs_may_alias_p): Add tbaa_p bool parameter
1016         and pass it along.
1017         (ref_maybe_used_by_stmt_p): Likewise.
1018         (stmt_may_clobber_ref_p): Likewise.
1019         (stmt_may_clobber_ref_p_1): Likewise.
1020         * tree-vect-data-refs.c (vect_slp_analyze_node_dependences): Use
1021         the alias oracle to disambiguate DRs with stmts DR analysis
1022         couldn't handle.
1023         (vect_analyze_data_refs): Do not give up on not analyzable
1024         DRs for BB vectorization.  Remove code truncating the dataref
1025         vector.
1026
1027 2018-05-25  Jakub Jelinek  <jakub@redhat.com>
1028
1029         PR target/85832
1030         * config/i386/sse.md (<avx512>_eq<mode>3<mask_scalar_merge_name>_1):
1031         Add (=Yk,v,C) variant using vptestm insn.  Use TARGET_AVX512BW
1032         in test instead of TARGET_AVX512F for VI12_AVX512VL iterator.
1033
1034 2018-05-25  Richard Biener  <rguenther@suse.de>
1035
1036         * tree-vect-data-refs.c (vect_find_stmt_data_reference): New
1037         function, combining stmt data ref gathering and fatal analysis
1038         parts.
1039         (vect_analyze_data_refs): Remove now redudnant code and simplify.
1040         * tree-vect-loop.c (vect_get_datarefs_in_loop): Factor out from
1041         vect_analyze_loop_2 and use vect_find_stmt_data_reference.
1042         * tree-vect-slp.c (vect_slp_bb): Use vect_find_stmt_data_reference.
1043         * tree-vectorizer.h (vect_find_stmt_data_reference): Declare.
1044
1045 2018-05-25  Bin Cheng  <bin.cheng@arm.com>
1046
1047         PR tree-optimization/85720
1048         * tree-loop-distribution.c (break_alias_scc_partitions): Don't merge
1049         SCC if all partitions are builtins.
1050         (version_loop_by_alias_check): New parameter.  Generate cancelable
1051         runtime alias check if all partitions are builtins.
1052         (distribute_loop): Update call to above function.
1053
1054 2018-05-25  Bin Cheng  <bin.cheng@arm.com>
1055
1056         * tree-outof-ssa.c (tree-ssa.h, tree-dfa.h): Include header files.
1057         (create_default_def, for_all_parms): Moved from tree-ssa-coalesce.c.
1058         (parm_default_def_partition_arg): Ditto.
1059         (set_parm_default_def_partition): Ditto.
1060         (get_parm_default_def_partitions): Ditto and make it static.
1061         (get_undefined_value_partitions): Ditto and make it static.
1062         (remove_ssa_form): Refactor call to init_var_map here.
1063         * tree-ssa-coalesce.c (build_ssa_conflict_graph): Support live range
1064         computation for loop region.
1065         (coalesce_partitions, compute_optimized_partition_bases): Ditto.
1066         (register_default_def): Delete.
1067         (for_all_parms, create_default_def): Move to tree-outof-ssa.c.
1068         (parm_default_def_partition_arg): Ditto.
1069         (set_parm_default_def_partition): Ditto.
1070         (get_parm_default_def_partitions): Ditto and make it static.
1071         (get_undefined_value_partitions): Ditto and make it static.
1072         (coalesce_with_default, coalesce_with_default): Update comment.
1073         (create_coalesce_list_for_region): New func factored out from
1074         create_outofssa_var_map.
1075         (populate_coalesce_list_for_outofssa): New func factored out from
1076         create_outofssa_var_map and coalesce_ssa_name.
1077         (create_outofssa_var_map): Delete.
1078         (coalesce_ssa_name): Refactor to support live range computation.
1079         * tree-ssa-coalesce.h (coalesce_ssa_name): Change decl.
1080         (get_parm_default_def_partitions): Delete.
1081         (get_undefined_value_partitions): Ditto.
1082         * tree-ssa-live.c (init_var_map, delete_var_map): Support live range
1083         computation for loop region.
1084         (new_tree_live_info, loe_visit_block): Ditto.
1085         (live_worklist, set_var_live_on_entry): Ditto.
1086         (calculate_live_on_exit, verify_live_on_entry): Ditto.
1087         * tree-ssa-live.h (struct _var_map): New fields.
1088         (init_var_map): Change decl.
1089         (region_contains_p): New.
1090
1091 2018-05-25  Bin Cheng  <bin.cheng@arm.com>
1092
1093         * tree-ssa-live.h (live_merge_and_clear): Delete.
1094
1095 2018-05-25  Richard Biener  <rguenther@suse.de>
1096
1097         PR c++/85912
1098         * tree-dump.c (dequeue_and_dump): Remove access to removed
1099         operand 2 of a SWITCH_EXPR.
1100
1101 2018-05-25  Richard Sandiford  <richard.sandiford@linaro.org>
1102
1103         * doc/sourcebuild.texi (vect_double_cond_arith): Include
1104         multiplication and division.
1105         * doc/md.texi (cond_mul@var{m}, cond_div@var{m}, cond_mod@var{m})
1106         (cond_udiv@var{m}, cond_umod@var{m}): Document.
1107         * optabs.def (cond_smul_optab, cond_sdiv_optab, cond_smod_optab)
1108         (cond_udiv_optab, cond_umod_optab): New optabs.
1109         * internal-fn.def (IFN_COND_MUL, IFN_COND_DIV, IFN_COND_MOD)
1110         (IFN_COND_RDIV): New internal functions.
1111         * internal-fn.c (get_conditional_internal_fn): Handle TRUNC_DIV_EXPR,
1112         TRUNC_MOD_EXPR and RDIV_EXPR.
1113         * match.pd (UNCOND_BINARY, COND_BINARY): Handle them.
1114         * config/aarch64/iterators.md (UNSPEC_COND_MUL, UNSPEC_COND_DIV):
1115         New unspecs.
1116         (SVE_INT_BINARY): Include mult.
1117         (SVE_COND_FP_BINARY): Include UNSPEC_MUL and UNSPEC_DIV.
1118         (optab, sve_int_op): Handle mult.
1119         (optab, sve_fp_op, commutative): Handle UNSPEC_COND_MUL and
1120         UNSPEC_COND_DIV.
1121         * config/aarch64/aarch64-sve.md (cond_<optab><mode>): New pattern
1122         for SVE_INT_BINARY_SD.
1123
1124 2018-05-25  Richard Sandiford  <richard.sandiford@linaro.org>
1125
1126         * config/aarch64/iterators.md (SVE_INT_BINARY_SD): New code iterator.
1127         (optab, sve_int_op): Handle div and udiv.
1128         * config/aarch64/aarch64-sve.md (<optab><mode>3): New expander
1129         for SVE_INT_BINARY_SD.
1130         (*<optab><mode>3): New insn for the same.
1131
1132 2018-05-25  Richard Sandiford  <richard.sandiford@linaro.org>
1133
1134         * tree-vect-patterns.c: Include predict.h.
1135         (vect_recog_divmod_pattern): Restrict check for division support
1136         to when optimizing for size.
1137
1138 2018-05-25  Richard Sandiford  <richard.sandiford@linaro.org>
1139
1140         * doc/sourcebuild.texi (vect_double_cond_arith: Document.
1141         * gimple-match.h (gimple_match_op::MAX_NUM_OPS): Bump to 4.
1142         (gimple_match_op::gimple_match_op): Add an overload for 4 operands.
1143         (gimple_match_op::set_op): Likewise.
1144         (gimple_resimplify4): Declare.
1145         * genmatch.c (get_operand_type): Handle CFN_COND_* functions.
1146         (expr::gen_transform): Likewise.
1147         (decision_tree::gen): Generate a simplification routine for 4 operands.
1148         * gimple-match-head.c (gimple_simplify): Add an overload for
1149         4 operands.  In the top-level function, handle up to 4 call
1150         arguments and call gimple_resimplify4.
1151         (gimple_resimplify4): New function.
1152         (build_call_internal): Pass a fourth operand.
1153         (maybe_push_to_seq): Likewise.
1154         * match.pd (UNCOND_BINARY, COND_BINARY): New operator lists.
1155         Fold VEC_COND_EXPRs of an operation and a default value into
1156         an IFN_COND_* function if possible.
1157         * config/aarch64/iterators.md (UNSPEC_COND_MAX, UNSPEC_COND_MIN):
1158         New unspecs.
1159         (SVE_COND_FP_BINARY): Include them.
1160         (optab, sve_fp_op): Handle them.
1161         (SVE_INT_BINARY_REV): New code iterator.
1162         (SVE_COND_FP_BINARY_REV): New int iterator.
1163         (commutative): New int attribute.
1164         * config/aarch64/aarch64-protos.h (aarch64_sve_prepare_conditional_op):
1165         Declare.
1166         * config/aarch64/aarch64.c (aarch64_sve_prepare_conditional_op): New
1167         function.
1168         * config/aarch64/aarch64-sve.md (cond_<optab><mode>): Use it.
1169         (*cond_<optab><mode>): New patterns for reversed operands.
1170
1171 2018-05-25  Richard Biener  <rguenther@suse.de>
1172
1173         * tree-vectorizer.h (STMT_VINFO_GROUP_*, GROUP_*): Remove.
1174         (DR_GROUP_*): New, assert we have non-NULL ->data_ref_info.
1175         (REDUC_GROUP_*): New, assert we have NULL ->data_ref_info.
1176         (STMT_VINFO_GROUPED_ACCESS): Adjust.
1177         * tree-vect-data-refs.c (everywhere): Adjust users.
1178         * tree-vect-loop.c (everywhere): Likewise.
1179         * tree-vect-slp.c (everywhere): Likewise.
1180         * tree-vect-stmts.c (everywhere): Likewise.
1181         * tree-vect-patterns.c (vect_reassociating_reduction_p): Likewise.
1182
1183 2018-05-25  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1184
1185         * configure.ac (gcc_cv_as_section_has_e): Move to common section.
1186         Rename to...
1187         (gcc_cv_as_section_exclude): ... this.
1188         Try Solaris as #exclude syntax.
1189         * configure: Regenerate.
1190         * config.in: Regenerate.
1191         * config/i386/i386.c (i386_solaris_elf_named_section): Handle
1192         SECTION_EXCLUDE.
1193         * config/sparc/sparc.c (sparc_solaris_elf_asm_named_section)
1194         [HAVE_GAS_SECTION_EXCLUDE]: Handle SECTION_EXCLUDE.
1195
1196         * varasm.c (default_elf_asm_named_section): Don't check if
1197         HAVE_GAS_SECTION_EXCLUDE is defined.
1198
1199 2018-05-25  Richard Sandiford  <richard.sandiford@linaro.org>
1200
1201         * doc/md.texi: Update the documentation of the cond_* optabs
1202         to mention the new final operand.  Fix GET_MODE_NUNITS call.
1203         Describe the scalar case too.
1204         * internal-fn.def (IFN_EXTRACT_LAST): Change type to fold_left.
1205         * internal-fn.c (expand_cond_unary_optab_fn): Expect 3 operands
1206         instead of 2.
1207         (expand_cond_binary_optab_fn): Expect 4 operands instead of 3.
1208         (get_conditional_internal_fn): Update comment.
1209         * tree-vect-loop.c (vectorizable_reduction): Pass the original
1210         accumulator value as a final argument to conditional functions.
1211         * config/aarch64/aarch64-sve.md (cond_<optab><mode>): Turn into
1212         a define_expand and add an "else" operand.  Assert for now that
1213         the else operand is equal to operand 2.  Use SVE_INT_BINARY and
1214         SVE_COND_FP_BINARY instead of SVE_COND_INT_OP and SVE_COND_FP_OP.
1215         (*cond_<optab><mode>): New patterns.
1216         * config/aarch64/iterators.md (UNSPEC_COND_SMAX, UNSPEC_COND_UMAX)
1217         (UNSPEC_COND_SMIN, UNSPEC_COND_UMIN, UNSPEC_COND_AND, UNSPEC_COND_ORR)
1218         (UNSPEC_COND_EOR): Delete.
1219         (optab): Remove associated mappings.
1220         (SVE_INT_BINARY): New code iterator.
1221         (sve_int_op): Remove int attribute and add "minus" to the code
1222         attribute.
1223         (SVE_COND_INT_OP): Delete.
1224         (SVE_COND_FP_OP): Rename to...
1225         (SVE_COND_FP_BINARY): ...this.
1226
1227 2018-05-25  Richard Sandiford  <richard.sandiford@linaro.org>
1228
1229         * optabs.c (can_reuse_operands_p): New function.
1230         (maybe_legitimize_operands): Try to reuse the results for
1231         earlier operands.
1232
1233 2018-05-24  Uros Bizjak  <ubizjak@gmail.com>
1234
1235         * config/i386/sse.md (cvtusi2<ssescalarmodesuffix>64<round_name>):
1236         Add {q} suffix to insn mnemonic.
1237
1238 2018-05-23  Jozef Lawrynowicz  <jozef.l@mittosystems.com>
1239
1240         * config/msp430/msp430.c (TARGET_WARN_FUNC_RETURN): Define.
1241         (msp430_warn_func_return): New.
1242
1243 2018-05-24  Roger Sayle  <roger@nextmovesoftware.com>
1244
1245         * fold-const.c (tree_nonzero_bits): New function.
1246         * fold-const.h (tree_nonzero_bits): Likewise.
1247         * match.pd (POPCOUNT): New patterns to fold BUILTIN_POPCOUNT and
1248         friends.  POPCOUNT(x&1) => x&1, POPCOUNT(x)==0 => x==0, etc.
1249
1250 2018-05-24  H.J. Lu  <hongjiu.lu@intel.com>
1251
1252         PR target/85900
1253         PR target/85345
1254         * varasm.c (assemble_alias): Check ifunc_resolver only on
1255         FUNCTION_DECL.
1256
1257 2018-05-24  Uros Bizjak  <ubizjak@gmail.com>
1258
1259         PR target/85903
1260         * config/i386/sse.md (movdi_to_sse): Do not generate pseudo
1261         when memory input operand is handled.
1262
1263 2018-05-24  Luis Machado  <luis.machado@linaro.org>
1264
1265         * config/aarch64/aarch64.c (qdf24xx_addrcost_table): New static
1266         global.
1267         (qdf24xx_tunings) <addr_costs>: Set to qdf24xx_addrcost_table.
1268
1269 2018-05-24  Richard Sandiford  <richard.sandiford@linaro.org>
1270
1271         * match.pd: Delay FMA folds until after vectorization.
1272
1273 2018-05-24  Andre Vieira  <andre.simoesdiasvieira@arm.com>
1274
1275         PR target/83009
1276         * config/aarch64/predicates.md (aarch64_mem_pair_lanes_operand): Make
1277         address check not strict.
1278
1279 2018-05-24  Richard Sandiford  <richard.sandiford@linaro.org>
1280
1281         * gimple-match.h (gimple_match_op): New class.
1282         (mprts_hook): Replace parameters with a gimple_match_op *.
1283         (maybe_build_generic_op): Likewise.
1284         (gimple_simplified_result_is_gimple_val): Replace parameters with
1285         a const gimple_match_op *.
1286         (gimple_simplify): Replace code_helper * and tree * parameters with
1287         a gimple_match_op * parameter.
1288         (gimple_resimplify1): Replace code_helper *, tree and tree *
1289         parameters with a gimple_match_op * parameter.
1290         (gimple_resimplify2): Likewise.
1291         (gimple_resimplify3): Likewise.
1292         (maybe_push_res_to_seq): Replace code_helper, tree and tree *
1293         parameters with a gimple_match_op * parameter.
1294         * gimple-match-head.c (gimple_simplify): Change prototypes of
1295         auto-generated functions to take a gimple_match_op * instead of
1296         separate code_helper * and tree * parameters.  Make the same
1297         change in the top-level overload and update calls to the
1298         gimple_resimplify routines.  Update calls to the auto-generated
1299         functions and to maybe_push_res_to_seq in the publicly-facing
1300         operation-specific gimple_simplify overloads.
1301         (gimple_match_op::MAX_NUM_OPS): Define.
1302         (gimple_resimplify1): Replace rcode and ops with a single res_op
1303         parameter.  Update call to gimple_simplify.
1304         (gimple_resimplify2): Likewise.
1305         (gimple_resimplify3): Likewise.
1306         (mprts_hook): Replace parameters with a gimple_match_op *.
1307         (maybe_build_generic_op): Likewise.
1308         (build_call_internal): Replace type, nargs and ops with
1309         a gimple_match_op *.
1310         (maybe_push_res_to_seq): Replace res_code, type and ops parameters
1311         with a single gimple_match_op *.  Update calls to mprts_hook,
1312         build_call_internal and gimple_simplified_result_is_gimple_val.
1313         Factor out code that is common to the tree_code and combined_fn cases.
1314         * genmatch.c (expr::gen_transform): Replace tem_code and
1315         tem_ops with a gimple_match_op called tem_op.  Update calls
1316         to the gimple_resimplify functions and maybe_push_res_to_seq.
1317         (dt_simplify::gen_1): Manipulate res_op instead of res_code and
1318         res_ops.  Update call to the gimple_resimplify functions.
1319         (dt_simplify::gen): Pass res_op instead of res_code and res_ops.
1320         (decision_tree::gen): Make the functions take a gimple_match_op *
1321         called res_op instead of separate res_code and res_ops parameters.
1322         Update call accordingly.
1323         * gimple-fold.c (replace_stmt_with_simplification): Replace rcode
1324         and ops with a single res_op parameter.  Update calls to
1325         maybe_build_generic_op and maybe_push_res_to_seq.
1326         (fold_stmt_1): Update calls to gimple_simplify and
1327         replace_stmt_with_simplification.
1328         (gimple_fold_stmt_to_constant_1): Update calls to gimple_simplify
1329         and gimple_simplified_result_is_gimple_val.
1330         * tree-cfgcleanup.c (cleanup_control_expr_graph): Update call to
1331         gimple_simplify.
1332         * tree-ssa-sccvn.c (vn_lookup_simplify_result): Replace parameters
1333         with a gimple_match_op *.
1334         (vn_nary_build_or_lookup): Likewise.  Update call to
1335         vn_nary_build_or_lookup_1.
1336         (vn_nary_build_or_lookup_1): Replace rcode, type and ops with a
1337         gimple_match_op *.  Update calls to the gimple_resimplify routines
1338         and to gimple_simplified_result_is_gimple_val.
1339         (vn_nary_simplify): Update call to vn_nary_build_or_lookup_1.
1340         Use gimple_match_op::MAX_NUM_OPS instead of a hard-coded 3.
1341         (vn_reference_lookup_3): Update call to vn_nary_build_or_lookup.
1342         (visit_nary_op): Likewise.
1343         (visit_reference_op_load): Likewise.
1344
1345 2018-05-23  Luis Machado  <luis.machado@linaro.org>
1346
1347         * tree-ssa-loop-prefetch.c (should_issue_prefetch_p): Use correct type
1348         modifier for printing the step amount.
1349
1350 2018-05-23  Jozef Lawrynowicz  <jozef.l@somniumtech.com>
1351
1352         PR target/78849
1353         * gcc/tree.c (build_common_tree_nodes): Dont set TYPE_SIZE for __intN
1354         types.
1355
1356 2018-05-23  Segher Boessenkool  <segher@kernel.crashing.org>
1357
1358         * doc/sourcebuild.texi (Endianness): New subsubsection.
1359
1360 2018-05-23  Luis Machado  <luis.machado@linaro.org>
1361
1362         * config/aarch64/aarch64-protos.h (cpu_prefetch_tune)
1363         <prefetch_dynamic_strides>: New const bool field.
1364         * config/aarch64/aarch64.c (generic_prefetch_tune): Update to include
1365         prefetch_dynamic_strides.
1366         (exynosm1_prefetch_tune): Likewise.
1367         (thunderxt88_prefetch_tune): Likewise.
1368         (thunderx_prefetch_tune): Likewise.
1369         (thunderx2t99_prefetch_tune): Likewise.
1370         (qdf24xx_prefetch_tune): Likewise. Set prefetch_dynamic_strides to
1371         false.
1372         (aarch64_override_options_internal): Update to set
1373         PARAM_PREFETCH_DYNAMIC_STRIDES.
1374         * doc/invoke.texi (prefetch-dynamic-strides): Document new option.
1375         * params.def (PARAM_PREFETCH_DYNAMIC_STRIDES): New.
1376         * params.h (PARAM_PREFETCH_DYNAMIC_STRIDES): Define.
1377         * tree-ssa-loop-prefetch.c (should_issue_prefetch_p): Account for
1378         prefetch-dynamic-strides setting.
1379
1380 2018-05-23  Luis Machado  <luis.machado@linaro.org>
1381
1382         * config/aarch64/aarch64-protos.h (cpu_prefetch_tune)
1383         <minimum_stride>: New const int field.
1384         * config/aarch64/aarch64.c (generic_prefetch_tune): Update to include
1385         minimum_stride field defaulting to -1.
1386         (exynosm1_prefetch_tune): Likewise.
1387         (thunderxt88_prefetch_tune): Likewise.
1388         (thunderx_prefetch_tune): Likewise.
1389         (thunderx2t99_prefetch_tune): Likewise.
1390         (qdf24xx_prefetch_tune) <minimum_stride>: Set to 2048.
1391         <default_opt_level>: Set to 3.
1392         (aarch64_override_options_internal): Update to set
1393         PARAM_PREFETCH_MINIMUM_STRIDE.
1394         * doc/invoke.texi (prefetch-minimum-stride): Document new option.
1395         * params.def (PARAM_PREFETCH_MINIMUM_STRIDE): New.
1396         * params.h (PARAM_PREFETCH_MINIMUM_STRIDE): Define.
1397         * tree-ssa-loop-prefetch.c (should_issue_prefetch_p): Return false if
1398         stride is constant and is below the minimum stride threshold.
1399
1400 2018-05-23  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1401
1402         * config/arm/arm-cpus.in (mode26): Delete.
1403         (armv4): Delete mode26 reference.
1404         * config/arm/arm.c (arm_configure_build_target): Delete use of
1405         isa_bit_mode26.
1406
1407 2018-05-23  Uros Bizjak  <ubizjak@gmail.com>
1408
1409         * config/i386/i386.md (*floatuns<SWI48:mode><MODEF:mode>2_avx512):
1410         New insn pattern.
1411         (floatunssi<mode>2): Also enable for AVX512F and TARGET_SSE_MATH.
1412         Rewrite expander pattern.  Emit gen_floatunssi<mode>2_i387_with_xmm
1413         for non-SSE modes.
1414         (floatunsdisf2): Rewrite expander pattern.  Hanlde TARGET_AVX512F.
1415         (floatunsdidf2): Ditto.
1416
1417 2018-05-23  Uros Bizjak  <ubizjak@gmail.com>
1418
1419         * config/i386/i386.md (fixuns_trunc<mode>di2): New insn pattern.
1420         (fixuns_trunc<mode>si2_avx512f): Ditto.
1421         (*fixuns_trunc<mode>si2_avx512f_zext): Ditto.
1422         (fixuns_trunc<mode>si2): Also enable for AVX512F and TARGET_SSE_MATH.
1423         Emit fixuns_trunc<mode>si2_avx512f for AVX512F targets.
1424
1425 2018-05-23  Alexander Monakov  <amonakov@ispras.ru>
1426
1427         PR rtl-optimization/79985
1428         * df-scan.c (df_insn_refs_collect): Remove special case for
1429         global registers and asm statements.
1430
1431 2018-05-23  Alexander Monakov  <amonakov@ispras.ru>
1432
1433         * extend.texi (Global Register Variables): Rewrite the bullet list.
1434         Note that the register is available for allocation. Note that access
1435         via inline asm must use constraints. Add note about async-signal
1436         handlers. Remove paragraph about automagic register selection.
1437
1438 2018-05-23  Richard Biener  <rguenther@suse.de>
1439
1440         * tree-ssa-sccvn.c (vn_reference_lookup_3): Remove restriction
1441         of fixed offset from memset VN.
1442
1443 2018-05-23  Bill Schmidt  <wschmidt@linux.ibm.com>
1444
1445         * gimple-ssa-strength-reduction.c (struct slsr_cand_d): Add
1446         first_interp field.
1447         (alloc_cand_and_find_basis): Initialize first_interp field.
1448         (slsr_process_mul): Modify first_interp field.
1449         (slsr_process_add): Likewise.
1450         (slsr_process_cast): Modify first_interp field for each new
1451         interpretation.
1452         (slsr_process_copy): Likewise.
1453         (dump_candidate): Dump first_interp field.
1454         (replace_mult_candidate): Process all interpretations, not just
1455         subsequent ones.
1456         (replace_rhs_if_not_dup): Likewise.
1457         (replace_one_candidate): Likewise.
1458
1459 2018-05-23  Wilco Dijkstra  <wdijkstr@arm.com>
1460
1461         * config/aarch64/aarch64.c (aarch64_use_frame_pointer):
1462         Add new boolean.
1463         (aarch64_needs_frame_chain): New function.
1464         (aarch64_parse_override_string): Set aarch64_use_frame_pointer.
1465
1466 2018-05-23  Sudakshina Das  <sudi.das@arm.com>
1467
1468         PR target/84882
1469         * common/config/aarch64/aarch64-common.c (aarch64_handle_option):
1470         Check val before adding MASK_STRICT_ALIGN to opts->x_target_flags.
1471         * config/aarch64/aarch64.opt (mstrict-align): Remove RejectNegative.
1472         * config/aarch64/aarch64.c (aarch64_attributes): Mark allow_neg
1473         as true for strict-align.
1474         (aarch64_can_inline_p): Perform checks even when callee has no
1475         attributes to check for strict alignment.
1476         * doc/extend.texi (AArch64 Function Attributes): Document
1477         no-strict-align.
1478         * doc/invoke.texi: (AArch64 Options): Likewise.
1479
1480 2018-05-23  Richard Sandiford  <richard.sandiford@linaro.org>
1481
1482         PR tree-optimization/85853
1483         * tree-vect-slp.c (vect_slp_analyze_node_operations): Split out
1484         the handling of the root of the node to...
1485         (vect_slp_analyze_node_operations_1): ...this new function,
1486         and run the whole thing with the child nodes' def types
1487         set according to their SLP node's def type.
1488
1489 2018-05-23  Richard Biener  <rguenther@suse.de>
1490
1491         PR middle-end/85874
1492         * tree-data-ref.c (create_runtime_alias_checks): Defer
1493         and ignore overflow warnings.
1494
1495 2018-05-23  Yury Gribov  <tetra2005@gmail.com>
1496
1497         PR tree-optimization/85822
1498         * tree-vrp.c (is_masked_range_test): Fix handling of negative
1499         constants.
1500
1501 2018-05-23  Richard Biener  <rguenther@suse.de>
1502
1503         * tree-ssa-sccvn.c (vn_reference_lookup_3): Handle arbitrary
1504         memset constants via native_interpret_expr.
1505
1506 2018-05-22  H.J. Lu  <hongjiu.lu@intel.com>
1507
1508         PR target/85345
1509         * cgraph.h (cgraph_node::create): Set ifunc_resolver for ifunc
1510         attribute.
1511         (cgraph_node::create_alias): Likewise.
1512         (cgraph_node::get_availability): Check ifunc_resolver instead
1513         of looking up ifunc attribute.
1514         * cgraphunit.c (maybe_diag_incompatible_alias): Likewise.
1515         * varasm.c (do_assemble_alias): Likewise.
1516         (assemble_alias): Likewise.
1517         (default_binds_local_p_3): Likewise.
1518         * cgraph.h (cgraph_node): Add ifunc_resolver.
1519         (cgraph_node::only_called_directly_or_aliased_p): Return false
1520         for IFUNC resolver.
1521         * lto-cgraph.c (input_node): Set ifunc_resolver for ifunc
1522         attribute.
1523         * symtab.c (symtab_node::verify_base): Verify that ifunc_resolver
1524         is equivalent to lookup_attribute ("ifunc", DECL_ATTRIBUTES (decl)).
1525         (symtab_node::binds_to_current_def_p): Check ifunc_resolver
1526         instead of looking up ifunc attribute.
1527
1528 2018-05-22  Luis Machado  <luis.machado@linaro.org>
1529
1530         * config/aarch64/aarch64.md (*ashift<mode>_extv_bfiz): New pattern.
1531
1532 2018-05-22  Martin Sebor  <msebor@redhat.com>
1533
1534         PR middle-end/85359
1535         * builtins.c (expand_builtin_strcpy): Call maybe_warn_nonstring_arg
1536         only when expasion succeeds.
1537         (expand_builtin_strcmp): Same.
1538         (expand_builtin_strncmp): Same.
1539
1540 2018-05-22  Martin Sebor  <msebor@redhat.com>
1541
1542         * calls.c (maybe_warn_nonstring_arg): Fix a typo in a comment.
1543
1544 2018-05-22  Jackson Woodruff  <jackson.woodruff@arm.com>
1545             Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1546
1547         * config/aarch64/aarch64-ldpstp.md: Replace uses of
1548         aarch64_mem_pair_operand with memory_operand and delete operand swapping
1549         code.
1550         * config/aarch64/aarch64.c (aarch64_operands_ok_for_ldpstp):
1551         Add check for legitimate_address.
1552         (aarch64_gen_adjusted_ldpstp): Swap operands where appropriate.
1553         (aarch64_swap_ldrstr_operands): New.
1554         * config/aarch64/aarch64-protos.h (aarch64_swap_ldrstr_operands):
1555         Define prototype.
1556
1557 2018-05-22  Jackson Woodruff  <jackson.woodruff@arm.com>
1558             Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1559
1560         * config/aarch64/aarch64.md: New patterns to generate stp
1561         and ldp.
1562         (store_pair_sw, store_pair_dw): New patterns to generate stp for
1563         single words and double words.
1564         (load_pair_sw, load_pair_dw): Likewise.
1565         (store_pair_sf, store_pair_df, store_pair_si, store_pair_di):
1566         Delete.
1567         (load_pair_sf, load_pair_df, load_pair_si, load_pair_di):
1568         Delete.
1569         * config/aarch64/aarch64-ldpstp.md: Modify peephole
1570         for different mode ldpstp and add peephole for merged zero stores.
1571         Likewise for loads.
1572         * config/aarch64/aarch64.c (aarch64_operands_ok_for_ldpstp):
1573         Add size check.
1574         (aarch64_gen_store_pair): Rename calls to match new patterns.
1575         (aarch64_gen_load_pair): Rename calls to match new patterns.
1576         * config/aarch64/aarch64-simd.md (load_pair<mode>): Rename to...
1577         (load_pair<DREG:mode><DREG2:mode>): ... This.
1578         (store_pair<mode>): Rename to...
1579         (vec_store_pair<DREG:mode><DREG2:mode>): ... This.
1580         * config/aarch64/iterators.md (DREG, DREG2, DX2, SX, SX2, DSX):
1581         New mode iterators.
1582         (V_INT_EQUIV): Handle SImode.
1583         * config/aarch64/predicates.md (aarch64_reg_zero_or_fp_zero):
1584         New predicate.
1585
1586 2018-05-22  Martin Sebor  <msebor@redhat.com>
1587
1588         PR c/85623
1589         * calls.c (maybe_warn_nonstring_arg): Use string length to set
1590         or ajust the presumed bound on an operation to avoid unnecessary
1591         warnings.
1592
1593 2018-05-22  Martin Sebor  <msebor@redhat.com>
1594
1595         PR tree-optimization/85826
1596         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Avoid
1597         assuming that a DECL necesarily has a constant size.
1598
1599 2018-05-22  Richard Sandiford  <richard.sandiford@linaro.org>
1600
1601         PR middle-end/85862
1602         * internal-fn.c (expand_direct_optab_fn): Cope with a null lhs.
1603
1604 2018-05-22  Richard Biener  <rguenther@suse.de>
1605
1606         PR tree-optimization/85834
1607         * tree-ssa-sccvn.c (vn_reference_lookup_3): Properly handle
1608         non-constant and non-zero memset arguments.
1609
1610 2018-05-22  Martin Liska  <mliska@suse.cz>
1611
1612         PR ipa/85607
1613         * ipa-icf.c (sem_item::add_type): Do not ICE for incomplete types.
1614
1615 2018-05-22  Richard Biener  <rguenther@suse.de>
1616
1617         PR tree-optimization/85863
1618         * tree-vect-stmts.c (vect_is_simple_cond): Only widen invariant
1619         comparisons when vectype is specified.
1620         (vectorizable_condition): Do not specify vectype for
1621         vect_is_simple_cond when SLP vectorizing.
1622
1623 2018-05-21  Michael Meissner  <meissner@linux.ibm.com>
1624
1625         PR target/85657
1626         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Do not
1627         define __ibm128 as long double.
1628         * config/rs6000/rs6000.c (rs6000_init_builtins): Create __ibm128
1629         as a distinct type when IEEE 128-bit support is enabled.
1630         (init_float128_ieee): Fix up conversions between IFmode and IEEE
1631         128-bit types to use the correct functions.
1632         (rs6000_expand_float128_convert): Use explicit FLOAT_EXTEND to
1633         convert between 128-bit floating point types that have different
1634         modes but the same representation, instead of using gen_lowpart to
1635         makean alias.
1636         * config/rs6000/rs6000.md (IFKF): New iterator for IFmode and
1637         KFmode.
1638         (IFKF_reg): New attributes to give the register constraints for
1639         IFmode and KFmode.
1640         (extend<mode>tf2_internal): New insns to mark an explicit
1641         conversion between 128-bit floating point types that have a
1642         different mode but share the same representation.
1643
1644 2018-05-21  Richard Sandiford  <richard.sandiford@linaro.org>
1645
1646         PR tree-optimization/85814
1647         * tree-ssa-strlen.c (get_stridx_plus_constant): Cope with
1648         a null return from get_strinfo when unsharing the next
1649         strinfo in the chain.
1650
1651 2018-05-21  Vladimir Mezentsev  <vladimir.mezentsev@oracle.com>
1652
1653         PR gcc/84923
1654         * varasm.c (weak_finish): Clean up weak_decls.
1655
1656 2018-05-21  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1657
1658         * config/aarch64/aarch64.md ("unspec"): Define UNSPEC_SABAL,
1659         UNSPEC_SABDL2, UNSPEC_SADALP, UNSPEC_UABAL, UNSPEC_UABDL2,
1660         UNSPEC_UADALP values.
1661         * config/aarch64/iterators.md (ABAL): New int iterator.
1662         (ABDL2): Likewise.
1663         (ADALP): Likewise.
1664         (sur): Add mappings for the above.
1665         * config/aarch64/aarch64-simd.md (aarch64_<sur>abdl2<mode>_3):
1666         New define_insn.
1667         (aarch64_<sur>abal<mode>_4): Likewise.
1668         (aarch64_<sur>adalp<mode>_3): Likewise.
1669         (<sur>sadv16qi): New define_expand.
1670
1671 2018-05-21  Alexander Nesterovskiy  <alexander.nesterovskiy@intel.com>
1672
1673         * config/i386/i386.md (*movsf_internal): AVX falsedep fix.
1674         (*movdf_internal): Ditto.
1675         (*rcpsf2_sse): Ditto.
1676         (*rsqrtsf2_sse): Ditto.
1677         (*sqrt<mode>2_sse): Ditto.
1678
1679 2018-05-21  Tamar Christina  <tamar.christina@arm.com>
1680
1681         * config/aarch64/aarch64-simd.md (aarch64_eor3qv8hi): Change to
1682         eor3q<mode>4.
1683         (aarch64_bcaxqv8hi): Change to bcaxq<mode>4.
1684         * config/aarch64/aarch64-simd-builtins.def (veor3q_u8, veor3q_u32,
1685         veor3q_u64, veor3q_s8, veor3q_s16, veor3q_s32, veor3q_s64, vbcaxq_u8,
1686         vbcaxq_u32, vbcaxq_u64, vbcaxq_s8, vbcaxq_s16, vbcaxq_s32,
1687         vbcaxq_s64): New.
1688         * config/aarch64/arm_neon.h: Likewise.
1689         * config/aarch64/iterators.md (VQ_I): New.
1690
1691 2018-05-21  Alexey Brodkin <abrodkin@synopsys.com>
1692
1693         * config.gcc: Add arc/t-multilib-linux to tmake_file for
1694         arc*-*-linux*.
1695         * config/arc/t-multilib-linux: Specify MULTILIB_OPTIONS and
1696         MULTILIB_DIRNAMES
1697
1698 2018-05-20  Chung-Ju Wu  <jasonwucj@gmail.com>
1699
1700         * config/nds32/constraints.md (S): New constraint.
1701         * config/nds32/nds32.md (call_internal): Use constraint S.
1702         (call_value_internal): Likewise.
1703         (sibcall_internal): Likewise.
1704         (sibcall_value_internal): Likewise.
1705
1706 2018-05-20  Kito Cheng  <kito.cheng@gmail.com>
1707             Chung-Ju Wu  <jasonwucj@gmail.com>
1708
1709         * config/nds32/nds32.c (nds32_register_move_cost): Take garywolf cpu
1710         into consideration.
1711
1712 2018-05-20  Kito Cheng  <kito.cheng@gmail.com>
1713             Chung-Ju Wu  <jasonwucj@gmail.com>
1714
1715         * config/nds32/nds32-cost.c (rtx_cost_model_t): New structure.
1716         (insn_size_16bit, insn_size_32bit): New variables for cost evaluation.
1717         (nds32_rtx_costs_impl): Simplify.
1718         (nds32_address_cost_impl): Simplify.
1719         (nds32_init_rtx_costs): New function.
1720         (nds32_rtx_costs_speed_prefer): Likewise.
1721         (nds32_rtx_costs_size_prefer): Likewise.
1722         (nds32_address_cost_speed_prefer): Likewise.
1723         (nds32_address_cost_speed_fwprop): Likewise.
1724         (nds32_address_cost_size_prefer): Likewise.
1725         * config/nds32/nds32-protos.h (nds32_init_rtx_costs): Declare.
1726         * config/nds32/nds32.c (nds32_option_override): Use
1727         nds32_init_rtx_costs function.
1728
1729 2018-05-20  Chung-Ju Wu  <jasonwucj@gmail.com>
1730
1731         * config/nds32/nds32.c (nds32_asm_file_start): Output pipeline model.
1732         * config/nds32/nds32.h (TARGET_PIPELINE_N7): Define.
1733         (TARGET_PIPELINE_N8): Likewise.
1734         (TARGET_PIPELINE_N10): Likewise.
1735         (TARGET_PIPELINE_N13): Likewise.
1736         (TARGET_PIPELINE_GRAYWOLF): Likewise.
1737
1738 2018-05-19  Monk Chiang  <sh.chiang04@gmail.com>
1739
1740         * config/nds32/nds32-fpu.md: Update copyright year.
1741
1742 2018-05-19  Chung-Ju Wu  <jasonwucj@gmail.com>
1743
1744         * config/nds32/nds32.h (ASM_SPEC): Adjust spec rule.
1745
1746 2018-05-19  Chung-Ju Wu  <jasonwucj@gmail.com>
1747
1748         * config/nds32/nds32.c
1749         (nds32_md_asm_adjust): Consider flag_inline_asm_r15 variable.
1750         * config/nds32/nds32.opt (minline-asm-r15): New option.
1751
1752 2018-05-19  Chung-Ju Wu  <jasonwucj@gmail.com>
1753
1754         * common/config/nds32/nds32-common.c (TARGET_DEFAULT_TARGET_FLAGS): Add
1755         MASK_HW_ABS.
1756         * config/nds32/nds32.md (abssi2): New pattern.
1757
1758 2018-05-19  Uros Bizjak  <ubizjak@gmail.com>
1759
1760         * config/i386/i386.md (rex64namesuffix): New mode attribute.
1761         * config/i386/sse.md (sse_cvtsi2ss<rex64namesuffix><round_name>):
1762         Merge insn pattern from sse_cvtsi2ss<round_name> and
1763         sse_cvtsi2ssq<round_name> using SWI48 mode iterator.
1764         (sse_cvtss2si<rex64namesuffix><round_name>): Merge insn pattern
1765         from sse_cvtss2si<round_name> and sse_cvtss2siq<round_name>
1766         using SWI48 mode iterator.
1767         (sse_cvtss2si<rex64namesuffix>_2): Merge insn pattern from
1768         sse_cvtss2si_2 and sse_cvtss2siq_2 using SWI48 mode iterator.
1769         (sse_cvttss2si<rex64namesuffix><round_saeonly_name>): Merge insn
1770         pattern from sse_cvttss2si<round_saeonly_name>
1771         and sse_cvttss2siq<round_saeonly_name> using SWI48 mode iterator.
1772         (avx512f_vcvtss2usi<rex64namesuffix><round_name>): Merge insn pattern
1773         from avx512f_vcvtss2usi<round_name> and avx512f_vcvtss2usiq<round_name>
1774         using SWI48 mode iterator.
1775         (avx512f_vcvttss2usi<rex64namesuffix><round_saeonly_name>): Merge
1776         insn pattern from avx512f_vcvttss2usi<round_saeonly_name> and
1777         avx512f_vcvttss2usiq<round_saeonly_name> using SWI48 mode iterator.
1778         (avx512f_vcvtsd2usi<rex64namesuffix><round_name>): Merge insn pattern
1779         from avx512f_vcvtsd2usi<round_name> and avx512f_vcvtsd2usiq<round_name>
1780         using SWI48 mode iterator.
1781         (avx512f_vcvttsd2usi<rex64namesuffix><round_saeonly_name>): Merge
1782         insn pattern from avx512f_vcvttsd2usi<round_saeonly_name> and
1783         avx512f_vcvttsd2usiq<round_saeonly_name> using SWI48 mode iterator.
1784         (sse2_cvtsd2si<rex64namesuffix><round_name>): Merge insn pattern from
1785         sse2_cvtsd2si<round_name> and sse2_cvtsd2siq<round_name> using
1786         SWI48 mode iterator.
1787         (sse2_cvtsd2si<rex64namesuffix>_2): Merge insn pattern from
1788         sse2_cvtsd2si_2 and sse2_cvtsd2siq_2 using SWI48 mode iterator.
1789         (sse_cvttsd2si<rex64namesuffix><round_saeonly_name>): Merge insn
1790         pattern from sse_cvttsd2si<round_saeonly_name>
1791         and sse_cvttsd2siq<round_saeonly_name> using SWI48 mode iterator.
1792
1793 2018-05-19  Chung-Ju Wu  <jasonwucj@gmail.com>
1794
1795         * config/nds32/nds32-md-auxiliary.c
1796         (nds32_valid_smw_lwm_base_p): Refine.
1797         (nds32_output_smw_single_word): Refine.
1798         (nds32_output_smw_double_word): New.
1799         * config/nds32/nds32-protos.h (nds32_output_smw_double_word): New.
1800
1801 2018-05-19  Chung-Ju Wu  <jasonwucj@gmail.com>
1802
1803         * config/nds32/nds32-md-auxiliary.c (nds32_output_stack_push): Refine.
1804         (nds32_output_stack_pop): Refine.
1805         (nds32_expand_unaligned_load): Refine.
1806         (nds32_expand_unaligned_store): Refine.
1807
1808 2018-05-19  Kuan-Lin Chen <kuanlinchentw@gmail.com>
1809             Chung-Ju Wu  <jasonwucj@gmail.com>
1810
1811         * config/nds32/constants.md: Add TP_REGNUM constant.
1812         (unspec_element): Add UNSPEC_GOTINIT, UNSPEC_GOT, UNSPEC_GOTOFF,
1813         UNSPEC_PLT, UNSPEC_TLSGD, UNSPEC_TLSLD, UNSPEC_TLSIE, UNSPEC_TLSLE and
1814         UNSPEC_ADD32.
1815         * config/nds32/nds32-doubleword.md: Consider flag_pic.
1816         * config/nds32/nds32-dspext.md (mov<mode>): Expand TLS and PIC cases.
1817         * config/nds32/nds32-predicates.c (nds32_const_unspec_p): New.
1818         * config/nds32/nds32-md-auxiliary.c: Implementation that support TLS
1819         and PIC code generation.
1820         * config/nds32/nds32-protos.h: Declarations that support TLS and PIC
1821         code generation.
1822         * config/nds32/nds32-relax-opt.c: Consider TLS and PIC for relax
1823         optimization.
1824         * config/nds32/nds32.md: Support TLS and PIC.
1825         * config/nds32/nds32.c: Support TLS and PIC.
1826         * config/nds32/nds32.h (nds32_relax_insn_type): New enum type.
1827         * config/nds32/predicates.md (nds32_nonunspec_symbolic_operand): New
1828         predicate.
1829
1830 2018-05-19  Chung-Ju Wu  <jasonwucj@gmail.com>
1831
1832         * config/nds32/nds32-predicates.c (const_vector_to_hwint): Use machine
1833         mode with E_ prefix.
1834
1835 2018-05-19  Kuan-Lin Chen <kuanlinchentw@gmail.com>
1836             Chung-Ju Wu  <jasonwucj@gmail.com>
1837
1838         * config/nds32/constants.md (unspec_element): Add UNSPEC_ICT.
1839         * config/nds32/nds32-md-auxiliary.c
1840         (symbolic_reference_mentioned_p): New.
1841         (nds32_legitimize_ict_address): New.
1842         (nds32_expand_ict_move): New.
1843         (nds32_indirect_call_referenced_p): New.
1844         (nds32_symbol_binds_local_p): Delete.
1845         (nds32_long_call_p): Modify.
1846         * config/nds32/nds32-opts.h (nds32_ict_model_type): New enum type.
1847         * config/nds32/nds32-protos.h
1848         (symbolic_reference_mentioned_p): Declare.
1849         (nds32_legitimize_ict_address): Declare.
1850         (nds32_expand_ict_move): Declare.
1851         (nds32_indirect_call_referenced_p): Declare.
1852         * config/nds32/nds32-relax-opt.c (nds32_ict_const_p): New.
1853         (nds32_relax_group): Use nds32_ict_const_p as condition.
1854         * config/nds32/nds32.c (nds32_attribute_table): Add "indirect_call".
1855         (nds32_asm_file_start): Output ict_model directive in asm code.
1856         (nds32_legitimate_address_p): Consider indirect call.
1857         (nds32_print_operand): Consider indirect call.
1858         (nds32_print_operand_address): Consider indirect call.
1859         (nds32_insert_attributes): Handle "indirect_call" attribute.
1860         (TARGET_LEGITIMATE_ADDRESS_P): Define.
1861         (TARGET_LEGITIMATE_CONSTANT_P): Define.
1862         (TARGET_CANNOT_FORCE_CONST_MEM): Define.
1863         (TARGET_DELEGITIMIZE_ADDRESS): Define.
1864         (TARGET_ASM_OUTPUT_ADDR_CONST_EXTRA): Define.
1865         * config/nds32/nds32.h (SYMBOLIC_CONST_P): Define.
1866         (TARGET_ICT_MODEL_SMALL): Define.
1867         (TARGET_ICT_MODEL_LARGE): Define.
1868         * config/nds32/nds32.md (movsi): Consider ict model.
1869         (call, call_value): Consider ict model.
1870         (sibcall, sibcall_value): Consider ict model.
1871         * config/nds32/nds32.opt (mict-model): New option.
1872         * config/nds32/predicates.md (nds32_symbolic_operand): Consider ict
1873         model.
1874
1875 2018-05-18  Kito Cheng  <kito.cheng@gmail.com>
1876             Monk Chiang  <sh.chiang04@gmail.com>
1877             Jim Wilson <jimw@sifive.com>
1878
1879         * common/config/riscv/riscv-common.c (riscv_parse_arch_string):
1880         Add support to parse rv32e*.  Clear MASK_RVE for rv32i and rv64i.
1881         * config.gcc (riscv*-*-*): Add support for rv32e* and ilp32e.
1882         * config/riscv/riscv-c.c (riscv_cpu_cpp_builtins): Define
1883         __riscv_32e when TARGET_RVE.  Handle ABI_ILP32E as soft-float ABI.
1884         * config/riscv/riscv-opts.h (riscv_abi_type): Add ABI_ILP32E.
1885         * config/riscv/riscv.c (riscv_compute_frame_info): When TARGET_RVE,
1886         compute save_libcall_adjustment properly.
1887         (riscv_option_override): Call error if TARGET_RVE and not ABI_ILP32E.
1888         (riscv_conditional_register_usage): Handle TARGET_RVE and ABI_ILP32E.
1889         * config/riscv/riscv.h (UNITS_PER_FP_ARG): Handle ABI_ILP32E.
1890         (STACK_BOUNDARY, ABI_STACK_BOUNDARY): Handle TARGET_RVE.
1891         (GP_REG_LAST, MAX_ARGS_IN_REGISTERS): Likewise.
1892         (ABI_SPEC): Handle mabi=ilp32e.
1893         * config/riscv/riscv.opt (abi_type): Add ABI_ILP32E.
1894         (RVE): Add RVE mask.
1895         * doc/invoke.texi (RISC-V options) <-mabi>: Add ilp32e info.
1896         <-march>: Add rv32e as an example.
1897
1898 2018-05-18  Marc Glisse  <marc.glisse@inria.fr>
1899
1900         PR c++/82899
1901         * tree-ssa-structalias.c (create_variable_info_for_1): Extra argument.
1902         (intra_create_variable_infos): Handle C++ constructors.
1903
1904 2018-05-18  Martin Liska  <mliska@suse.cz>
1905
1906         * passes.def: Remove a redundant pass.
1907
1908 2018-05-18  Eric Botcazou  <ebotcazou@adacore.com>
1909
1910         PR bootstrap/85838
1911         * config/sparc/sparc.c (sparc_expand_builtin): Always initialize op[0].
1912
1913 2018-05-18  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1914
1915         * config/arm/arm-cpus.in (armv3m, mode32): Delete features.
1916         (ARMv4): Update.
1917         (ARMv2, ARMv3, ARMv3m): Delete fgroups.
1918         (ARMv6m): Update.
1919         (armv2, armv2a, armv3, armv3m): Delete architectures.
1920         (arm2, arm250, arm3, arm6, arm60, arm600, arm610, arm620,
1921         arm7, arm7d, arm7di, arm70, arm700, arm700i, arm710, arm720,
1922         arm710c, arm7100, arm7500, arm7500fe, arm7m, arm7dm, arm7dmi):
1923         Delete cpus.
1924         * config/arm/arm.md (maddsidi4): Remove check for arm_arch3m.
1925         (*mulsidi3adddi): Likewise.
1926         (mulsidi3): Likewise.
1927         (*mulsidi3_nov6): Likewise.
1928         (umulsidi3): Likewise.
1929         (umulsidi3_nov6): Likewise.
1930         (umaddsidi4): Likewise.
1931         (*umulsidi3adddi): Likewise.
1932         (smulsi3_highpart): Likewise.
1933         (*smulsi3_highpart_nov6): Likewise.
1934         (umulsi3_highpart): Likewise.
1935         (*umulsi3_highpart_nov6): Likewise.
1936         * config/arm/arm.h (arm_arch3m): Delete.
1937         * config/arm/arm.c (arm_arch3m): Delete.
1938         (arm_option_override_internal): Update armv3-related comment.
1939         (arm_configure_build_target): Delete use of isa_bit_mode32.
1940         (arm_option_reconfigure_globals): Delete set of arm_ach3m.
1941         (arm_rtx_costs_internal): Delete check of arm_arch3m.
1942         * config/arm/arm-fixed.md (mulsq3): Delete check for arm_arch3m.
1943         (mulsa3): Likewise.
1944         (mulusa3): Likewise.
1945         * config/arm/arm-protos.h (arm_arch3m): Delete.
1946         * config/arm/arm-tables.opt: Regenerate.
1947         * config/arm/arm-tune.md: Likewise.
1948         * config/arm/t-arm-elf (all_early_nofp): Delete mentions of
1949         deleted architectures.
1950
1951 2018-05-18  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1952
1953         * config/arm/arm-cpus.in (armv5, armv5e): Delete features.
1954         (armv5t, armv5te): New features.
1955         (ARMv5, ARMv5e): Delete fgroups.
1956         (ARMv5t, ARMv5te): Adjust for above changes.
1957         (ARMv6m): Likewise.
1958         (armv5, armv5e): Delete arches.
1959         * config/arm/arm.md (*call_reg_armv5): Use arm_arch5t instead of
1960         arm_arch5.
1961         (*call_reg_arm): Likewise.
1962         (*call_value_reg_armv5): Likewise.
1963         (*call_value_reg_arm): Likewise.
1964         (*call_symbol): Likewise.
1965         (*call_value_symbol): Likewise.
1966         (*sibcall_insn): Likewise.
1967         (*sibcall_value_insn): Likewise.
1968         (clzsi2): Likewise.
1969         (prefetch): Likewise.
1970         (define_split and define_peephole2 dependent on arm_arch5):
1971         Likewise.
1972         * config/arm/arm.h (TARGET_LDRD): Use arm_arch5te instead of
1973         arm_arch5e.
1974         (TARGET_ARM_QBIT): Likewise.
1975         (TARGET_DSP_MULTIPLY): Likewise.
1976         (enum base_architecture): Delete BASE_ARCH_5, BASE_ARCH_5E.
1977         (arm_arch5, arm_arch5e): Delete.
1978         (arm_arch5t, arm_arch5te): Declare.
1979         * config/arm/arm.c (arm_arch5, arm_arch5e): Delete.
1980         (arm_arch5t): Declare.
1981         (arm_option_reconfigure_globals): Update for the above.
1982         (arm_options_perform_arch_sanity_checks): Update comment, replace
1983         use of arm_arch5 with arm_arch5t.
1984         (use_return_insn): Likewise.
1985         (arm_emit_call_insn): Likewise.
1986         (output_return_instruction): Likewise.
1987         (arm_final_prescan_insn): Likewise.
1988         (arm_coproc_builtin_available): Likewise.
1989         * config/arm/arm-c.c (arm_cpu_builtins): Replace arm_arch5 and
1990         arm_arch5e with arm_arch5t and arm_arch5te.
1991         * config/arm/arm-protos.h (arm_arch5, arm_arch5e): Delete.
1992         (arm_arch5t, arm_arch5te): Declare.
1993         * config/arm/arm-tables.opt: Regenerate.
1994         * config/arm/t-arm-elf: Remove references to armv5, armv5e.
1995         * config/arm/t-multilib: Likewise.
1996         * config/arm/thumb1.md (*call_reg_thumb1_v5): Check arm_arch5t
1997         instead of arm_arch5.
1998         (*call_reg_thumb1): Likewise.
1999         (*call_value_reg_thumb1_v5): Likewise.
2000         (*call_value_reg_thumb1): Likewise.
2001         * config/arm/vxworks.h (TARGET_OS_CPP_BUILTINS): Remove now
2002         unreachable path.
2003         * doc/invoke.texi (ARM Options): Remove references to armv5, armv5e.
2004
2005 2018-05-18  Martin Liska  <mliska@suse.cz>
2006
2007         PR gcov-profile/84846
2008         * doc/gcov.texi: Document -t option of gcov tool.
2009
2010 2018-05-18  Martin Liska  <mliska@suse.cz>
2011
2012         PR gcov-profile/84846
2013         * gcov.c (print_usage): Add new -t option.
2014         (process_args): Handle the option.
2015         (generate_results): Use stdout as output when requested by
2016         the option.
2017
2018 2018-05-18  Martin Liska  <mliska@suse.cz>
2019
2020         PR gcov-profile/84846
2021         * coverage.c (coverage_init): Write PWD to .gcno file.
2022         * doc/gcov.texi: Document how working directory is printed.
2023         * gcov-dump.c (dump_gcov_file): Print PWD.
2024         * gcov.c (output_intermediate_file): Likewise.
2025         (read_graph_file): Read PWD string.
2026         (output_lines): Print PWD.
2027
2028 2018-05-18  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
2029
2030         PR middle-end/85817
2031         * ipa-pure-const.c (malloc_candidate_p): Remove the check integer_zerop
2032         for retval and return false if all args to phi are zero.
2033
2034 2018-05-18  Richard Biener  <rguenther@suse.de>
2035
2036         * gimple-ssa-evrp.c (class evrp_folder): Add simplify_stmt_using_ranges
2037         method.
2038         (evrp_dom_walker::before_dom_children): Call it.
2039
2040 2018-05-18  Richard Biener  <rguenther@suse.de>
2041
2042         * tree-dfa.c (get_ref_base_and_extent): Use range-info to refine
2043         results when processing array refs with variable index.
2044
2045 2018-05-18  Toon Moene  <toon@moene.org>
2046
2047         * doc/invoke.texi: Move -floop-unroll-and-jam documentation
2048         directly after that of -floop-interchange. Indicate that both
2049         options are enabled by default when specifying -O3.
2050
2051 2018-05-18  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
2052
2053         * config/aarch64/aarch64-simd.md (vec_set<mode>): Use VALL_F16 mode
2054         iterator.  Delete separate integer-mode vec_set<mode> expander.
2055         (aarch64_simd_vec_setv2di): Delete.
2056         (vec_setv2di): Delete.
2057         (aarch64_simd_vec_set<mode>): Delete all other patterns with that name.
2058         Use VALL_F16 mode iterator.  Add LD1 alternative and use vwcore for
2059         the "w, r" alternative.
2060
2061 2018-05-18  Martin Liska  <mliska@suse.cz>
2062
2063         * passes.def: Add pass_lower_switch and pass_lower_switch_O0.
2064         * tree-pass.h (make_pass_lower_switch_O0): New function.
2065         * tree-switch-conversion.c (node_has_low_bound): Remove.
2066         (node_has_high_bound): Likewise.
2067         (node_is_bounded): Likewise.
2068         (class pass_lower_switch): Make it a template type and create
2069         two instances.
2070         (pass_lower_switch::execute): Add template argument.
2071         (make_pass_lower_switch): New function.
2072         (make_pass_lower_switch_O0): New function.
2073         (do_jump_if_equal): Remove.
2074         (emit_case_nodes): Simplify to just handle all 3 cases and leave
2075         all the hard work to tree optimization passes.
2076
2077 2018-05-18  Martin Liska  <mliska@suse.cz>
2078
2079         * dbgcnt.c (limit_low): Renamed from limit.
2080         (limit_high): New variable.
2081         (dbg_cnt_is_enabled): Check for upper limit.
2082         (dbg_cnt): Adjust dumping.
2083         (dbg_cnt_set_limit_by_index): Add new argument for high
2084         value.
2085         (dbg_cnt_set_limit_by_name): Likewise.
2086         (dbg_cnt_process_single_pair): Parse new format.
2087         (dbg_cnt_process_opt): Use strtok.
2088         (dbg_cnt_list_all_counters): Remove 'value' and add
2089         'limit_high'.
2090         * doc/invoke.texi: Document changes.
2091
2092 2018-05-18  Richard Sandiford  <richard.sandiford@linaro.org>
2093
2094         * doc/sourcebuild.texi (scalar_all_fma): Document.
2095         * tree.def (FMA_EXPR): Delete.
2096         * internal-fn.def (FMA, FMS, FNMA, FNMS): New internal functions.
2097         * internal-fn.c (ternary_direct): New macro.
2098         (expand_ternary_optab_fn): Likewise.
2099         (direct_ternary_optab_supported_p): Likewise.
2100         * Makefile.in (build/genmatch.o): Depend on case-fn-macros.h.
2101         * builtins.c (fold_builtin_fma): Delete.
2102         (fold_builtin_3): Don't call it.
2103         * cfgexpand.c (expand_debug_expr): Remove FMA_EXPR handling.
2104         * expr.c (expand_expr_real_2): Likewise.
2105         * fold-const.c (operand_equal_p): Likewise.
2106         (fold_ternary_loc): Likewise.
2107         * gimple-pretty-print.c (dump_ternary_rhs): Likewise.
2108         * gimple.c (DEFTREECODE): Likewise.
2109         * gimplify.c (gimplify_expr): Likewise.
2110         * optabs-tree.c (optab_for_tree_code): Likewise.
2111         * tree-cfg.c (verify_gimple_assign_ternary): Likewise.
2112         * tree-eh.c (operation_could_trap_p): Likewise.
2113         (stmt_could_throw_1_p): Likewise.
2114         * tree-inline.c (estimate_operator_cost): Likewise.
2115         * tree-pretty-print.c (dump_generic_node): Likewise.
2116         (op_code_prio): Likewise.
2117         * tree-ssa-loop-im.c (stmt_cost): Likewise.
2118         * tree-ssa-operands.c (get_expr_operands): Likewise.
2119         * tree.c (commutative_ternary_tree_code, add_expr): Likewise.
2120         * fold-const-call.h (fold_fma): Delete.
2121         * fold-const-call.c (fold_const_call_ssss): Handle CFN_FMS,
2122         CFN_FNMA and CFN_FNMS.
2123         (fold_fma): Delete.
2124         * genmatch.c (combined_fn): New enum.
2125         (commutative_ternary_tree_code): Remove FMA_EXPR handling.
2126         (commutative_op): New function.
2127         (commutate): Use it.  Handle more than 2 operands.
2128         (dt_operand::gen_gimple_expr): Use commutative_op.
2129         (parser::parse_expr): Allow :c to be used with non-binary
2130         operators if the commutative operand is known.
2131         * gimple-ssa-backprop.c (backprop::process_builtin_call_use): Handle
2132         CFN_FMS, CFN_FNMA and CFN_FNMS.
2133         (backprop::process_assign_use): Remove FMA_EXPR handling.
2134         * hsa-gen.c (gen_hsa_insns_for_operation_assignment): Likewise.
2135         (gen_hsa_fma): New function.
2136         (gen_hsa_insn_for_internal_fn_call): Use it for IFN_FMA, IFN_FMS,
2137         IFN_FNMA and IFN_FNMS.
2138         * match.pd: Add folds for IFN_FMS, IFN_FNMA and IFN_FNMS.
2139         * gimple-fold.h (follow_all_ssa_edges): Declare.
2140         * gimple-fold.c (follow_all_ssa_edges): New function.
2141         * tree-ssa-math-opts.c (convert_mult_to_fma_1): Use the
2142         gimple_build interface and use follow_all_ssa_edges to fold the result.
2143         (convert_mult_to_fma): Use direct_internal_fn_suppoerted_p
2144         instead of checking for optabs directly.
2145         * config/i386/i386.c (ix86_add_stmt_cost): Recognize FMAs as calls
2146         rather than FMA_EXPRs.
2147         * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Create a
2148         call to IFN_FMA instead of an FMA_EXPR.
2149
2150 2018-05-17  Jim Wilson  <jimw@sifive.com>
2151
2152         * expr.c (do_tablejump): When converting index to Pmode, if we have a
2153         sign extended promoted subreg, and the range does not have the sign bit
2154         set, then do a sign extend.
2155
2156         * config/riscv/riscv.c (riscv_extend_comparands): In unsigned QImode
2157         test, check for sign extended subreg and/or constant operands, and
2158         do a sign extend in that case.
2159
2160 2018-05-17  Steve Ellcey  <sellcey@cavium.com>
2161
2162         * config/aarch64/thunderx2t99.md (thunderx2t99_ls_both): Delete.
2163         (thunderx2t99_multiple): Delete psuedo-units from used cpus.
2164         Add untyped.
2165         (thunderx2t99_alu_shift): Remove alu_shift_reg, alus_shift_reg.
2166         Change logics_shift_reg to logics_shift_imm.
2167         (thunderx2t99_fp_loadpair_basic): Delete.
2168         (thunderx2t99_fp_storepair_basic): Delete.
2169         (thunderx2t99_asimd_int): Add neon_sub and neon_sub_q types.
2170         (thunderx2t99_asimd_polynomial): Delete.
2171         (thunderx2t99_asimd_fp_simple): Add neon_fp_mul_s_scalar_q
2172         and neon_fp_mul_d_scalar_q.
2173         (thunderx2t99_asimd_fp_conv): Add *int_to_fp* types.
2174         (thunderx2t99_asimd_misc): Delete neon_dup and neon_dup_q.
2175         (thunderx2t99_asimd_recip_step): Add missing *sqrt* types.
2176         (thunderx2t99_asimd_lut): Add missing tbl types.
2177         (thunderx2t99_asimd_ext): Delete.
2178         (thunderx2t99_asimd_load1_1_mult): Delete.
2179         (thunderx2t99_asimd_load1_2_mult): Delete.
2180         (thunderx2t99_asimd_load1_ldp): New.
2181         (thunderx2t99_asimd_load1): New.
2182         (thunderx2t99_asimd_load2): Add missing *load2* types.
2183         (thunderx2t99_asimd_load3): New.
2184         (thunderx2t99_asimd_load4): New.
2185         (thunderx2t99_asimd_store1_1_mult): Delete.
2186         (thunderx2t99_asimd_store1_2_mult): Delete.
2187         (thunderx2t99_asimd_store2_mult): Delete.
2188         (thunderx2t99_asimd_store2_onelane): Delete.
2189         (thunderx2t99_asimd_store_stp): New.
2190         (thunderx2t99_asimd_store1): New.
2191         (thunderx2t99_asimd_store2): New.
2192         (thunderx2t99_asimd_store3): New.
2193         (thunderx2t99_asimd_store4): New.
2194
2195 2018-05-17  Jerome Lambourg  <lambourg@adacore.com>
2196
2197         * config/arm/arm_cmse.h (cmse_nsfptr_create, cmse_is_nsfptr): Remove
2198         #include <stdint.h>.  Replace intptr_t with __INTPTR_TYPE__.
2199
2200 2018-05-17  Pat Haugen  <pthaugen@us.ibm.com>
2201             Segher Boessenkool  <segher@kernel.crashing.org>
2202
2203         PR target/85698
2204         * config/rs6000/rs6000.c (rs6000_output_move_128bit): Check dest
2205         operand.
2206
2207 2018-05-17  Richard Biener  <rguenther@suse.de>
2208
2209         * tree-ssa-dse.c (dse_classify_store): Fix iterator increment
2210         for pruning loop and prune defs feeding only already visited PHIs.
2211
2212 2018-05-17  Richard Biener  <rguenther@suse.de>
2213
2214         * tree-ssa-sccvn.c (vn_reference_lookup_3): Improve memset handling.
2215
2216 2018-05-17  Bin Cheng  <bin.cheng@arm.com>
2217             Richard Biener  <rguenther@suse.de>
2218
2219         PR tree-optimization/85793
2220         * tree-vect-stmts.c (vectorizable_load): Handle 1 element-wise load
2221         for VMAT_ELEMENTWISE.
2222
2223 2018-05-17  Richard Sandiford  <richard.sandiford@linaro.org>
2224
2225         * internal-fn.h (lookup_internal_fn): Declare
2226         * internal-fn.c (lookup_internal_fn): New function.
2227         * gimple.c (gimple_build_call_from_tree): Handle calls to
2228         internal functions.
2229         * gimple-pretty-print.c (dump_gimple_call): Print "." before
2230         internal function names.
2231         * tree-pretty-print.c (dump_generic_node): Likewise.
2232         * tree-ssa-scopedtables.c (expr_hash_elt::print): Likewise.
2233
2234 2018-05-17  Richard Sandiford  <richard.sandiford@linaro.org>
2235
2236         * gimple-fold.h (gimple_build): Make the function forms take
2237         combined_fn rather than built_in_function.
2238         (gimple_simplify): Likewise.
2239         * gimple-match-head.c (gimple_simplify): Likewise.
2240         * gimple-fold.c (gimple_build): Likewise.
2241         * tree-vect-loop.c (get_initial_def_for_reduction): Use gimple_build
2242         rather than gimple_build_call_internal.
2243         (get_initial_defs_for_reduction): Likewise.
2244         (vect_create_epilog_for_reduction): Likewise.
2245         (vectorizable_live_operation): Likewise.
2246
2247 2018-05-17  Martin Liska  <mliska@suse.cz>
2248
2249         * gimple-ssa-sprintf.c (format_directive): Do not use
2250         space in between 'G_' and '('.
2251
2252 2018-05-17  Jakub Jelinek  <jakub@redhat.com>
2253
2254         PR target/85323
2255         * config/i386/i386.c (ix86_fold_builtin): Handle masked shifts
2256         even if the mask is not all ones.
2257
2258         PR target/85323
2259         * config/i386/i386.c (ix86_fold_builtin): Fold shift builtins by
2260         vector.
2261         (ix86_gimple_fold_builtin): Likewise.
2262
2263         PR target/85323
2264         * config/i386/i386.c: Include tree-vector-builder.h.
2265         (ix86_vector_shift_count): New function.
2266         (ix86_fold_builtin): Fold shift builtins by scalar count.
2267         (ix86_gimple_fold_builtin): Likewise.
2268
2269         * config/i386/avx512fintrin.h (_mm512_set_epi16, _mm512_set_epi8,
2270         _mm512_setzero): New intrinsics.
2271
2272 2018-05-17  James Greenhalgh  <james.greenhalgh@arm.com>
2273             Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
2274
2275         * config/aarch64/aarch64.c (aarch64_expand_vector_init): Modify
2276         code generation for cases where splatting a value is not useful.
2277         * simplify-rtx.c (simplify_ternary_operation): Simplify
2278         vec_merge across a vec_duplicate and a paradoxical subreg forming
2279         a vector mode to a vec_concat.
2280
2281 2018-05-17  Olga Makhotina  <olga.makhotina@intel.com>
2282
2283         * config.gcc: Support "goldmont-plus".
2284         * config/i386/driver-i386.c (host_detect_local_cpu): Detect
2285         "goldmont-plus".
2286         * config/i386/i386-c.c (ix86_target_macros_internal): Handle
2287         PROCESSOR_GOLDMONT_PLUS.
2288         * config/i386/i386.c (m_GOLDMONT_PLUS): Define.
2289         (processor_target_table): Add "goldmont-plus".
2290         (PTA_GOLDMONT_PLUS): Define.
2291         (ix86_lea_outperforms): Add TARGET_GOLDMONT_PLUS.
2292         (get_builtin_code_for_version): Handle PROCESSOR_GOLDMONT_PLUS.
2293         (fold_builtin_cpu): Add M_INTEL_GOLDMONT_PLUS.
2294         (fold_builtin_cpu): Add "goldmont-plus".
2295         (ix86_add_stmt_cost): Add TARGET_GOLDMONT_PLUS.
2296         (ix86_option_override_internal): Add "goldmont-plus".
2297         * config/i386/i386.h (processor_costs): Define TARGET_GOLDMONT_PLUS.
2298         (processor_type): Add PROCESSOR_GOLDMONT_PLUS.
2299         * config/i386/x86-tune.def: Add m_GOLDMONT_PLUS.
2300         * doc/invoke.texi: Add goldmont-plus as x86 -march=/-mtune= CPU type.
2301
2302 2018-05-17  Richard Biener  <rguenther@suse.de>
2303
2304         PR tree-optimization/85757
2305         * tree-ssa-dse.c (dse_classify_store): Record a PHI def and
2306         remove defs that only feed that PHI from further processing.
2307
2308 2018-05-16  Jim Wilson  <jimw@sifive.com>
2309
2310         * config/riscv/riscv.md (<optab>si3_mask, <optab>si3_mask_1): Prepend
2311         asterisk to name.
2312         (<optab>di3_mask, <optab>di3_mask_1): Likewise.
2313
2314 2018-05-16  Mark Wielaard  <mark@klomp.org>
2315
2316         * dwarf2out.c (count_index_strings): New function.
2317         (output_indirect_strings): Call count_index_strings and generate
2318         header for dwarf_version >= 5.
2319
2320 2018-05-16  Mark Wielaard  <mark@klomp.org>
2321
2322         * dwarf2out.c (dwarf_FORM): New function.
2323         (set_indirect_string): Use dwarf_FORM.
2324         (reset_indirect_string): Likewise.
2325         (size_of_die): Likewise.
2326         (value_format): Likewise.
2327         (output_die): Likewise.
2328         (add_skeleton_AT_string): Likewise.
2329         (output_macinfo_op): Likewise.
2330         (index_string): Likewise.
2331         (output_index_string_offset): Likewise.
2332         (output_index_string): Likewise.
2333         (count_index_strings): Likewise.
2334
2335 2018-05-16  Carl Love  <cel@us.ibm.com>
2336
2337         * config/rs6000/rs6000.md (prefetch): Generate ISA 2.06 instructions
2338         dcbt and dcbtstt with TH=16 if operands[2] is 0 and Power 8 or newer.
2339
2340 2018-05-16  Martin Jambor  <mjambor@suse.cz>
2341
2342         * ipa-prop.c (ipa_free_all_edge_args): Remove.
2343         * ipa-prop.h (ipa_free_all_edge_args): Likewise.
2344
2345 2018-05-16  Wilco Dijkstra  <wdijkstr@arm.com>
2346
2347         * config/aarch64/aarch64.md (fma<mode>4): Change into expand pattern.
2348         (fnma<mode>4): Likewise.
2349         (fms<mode>4): Likewise.
2350         (fnms<mode>4): Likewise.
2351         (aarch64_fma<mode>4): Rename insn, reorder accumulator operand.
2352         (aarch64_fnma<mode>4): Likewise.
2353         (aarch64_fms<mode>4): Likewise.
2354         (aarch64_fnms<mode>4): Likewise.
2355         (aarch64_fnmadd<mode>4): Likewise.
2356
2357 2018-05-16  Jason Merrill  <jason@redhat.com>
2358
2359         * tree.c (warn_deprecated_use): Return bool.  Simplify logic.
2360
2361 2018-05-16  Richard Biener  <rguenther@suse.de>
2362
2363         * tree-vectorizer.h (struct stmt_info_for_cost): Add where member.
2364         (dump_stmt_cost): Declare.
2365         (add_stmt_cost): Dump cost we add.
2366         (add_stmt_costs): New function.
2367         (vect_model_simple_cost, vect_model_store_cost, vect_model_load_cost):
2368         No longer exported.
2369         (vect_analyze_stmt): Adjust prototype.
2370         (vectorizable_condition): Likewise.
2371         (vectorizable_live_operation): Likewise.
2372         (vectorizable_reduction): Likewise.
2373         (vectorizable_induction): Likewise.
2374         * tree-vect-loop.c (vect_analyze_loop_operations): Create local
2375         cost vector to pass to vectorizable_ and record afterwards.
2376         (vect_model_reduction_cost): Take cost vector argument and adjust.
2377         (vect_model_induction_cost): Likewise.
2378         (vectorizable_reduction): Likewise.
2379         (vectorizable_induction): Likewise.
2380         (vectorizable_live_operation): Likewise.
2381         * tree-vect-slp.c (vect_create_new_slp_node): Initialize
2382         SLP_TREE_NUMBER_OF_VEC_STMTS.
2383         (vect_analyze_slp_cost_1): Remove.
2384         (vect_analyze_slp_cost): Likewise.
2385         (vect_slp_analyze_node_operations): Take visited args and
2386         a target cost vector.  Avoid processing already visited stmt sets.
2387         (vect_slp_analyze_operations): Use a local cost vector to gather
2388         costs and register those of non-discarded instances.
2389         (vect_bb_vectorization_profitable_p): Use add_stmt_costs.
2390         (vect_schedule_slp_instance): Remove copying of
2391         SLP_TREE_NUMBER_OF_VEC_STMTS.  Instead assert that it is not
2392         zero.
2393         * tree-vect-stmts.c (record_stmt_cost): Remove path directly
2394         adding cost.  Record cost entry location.
2395         (vect_prologue_cost_for_slp_op): Function to compute cost of
2396         a constant or invariant generated for SLP vect in the prologue,
2397         split out from vect_analyze_slp_cost_1.
2398         (vect_model_simple_cost): Make static.  Adjust for SLP costing.
2399         (vect_model_promotion_demotion_cost): Likewise.
2400         (vect_model_store_cost): Likewise, make static.
2401         (vect_model_load_cost): Likewise.
2402         (vectorizable_bswap): Add cost vector arg and adjust.
2403         (vectorizable_call): Likewise.
2404         (vectorizable_simd_clone_call): Likewise.
2405         (vectorizable_conversion): Likewise.
2406         (vectorizable_assignment): Likewise.
2407         (vectorizable_shift): Likewise.
2408         (vectorizable_operation): Likewise.
2409         (vectorizable_store): Likewise.
2410         (vectorizable_load): Likewise.
2411         (vectorizable_condition): Likewise.
2412         (vectorizable_comparison): Likewise.
2413         (can_vectorize_live_stmts): Likewise.
2414         (vect_analyze_stmt): Likewise.
2415         (vect_transform_stmt): Adjust calls to vectorizable_*.
2416         * tree-vectorizer.c: Include gimple-pretty-print.h.
2417         (dump_stmt_cost): New function.
2418
2419 2018-05-16  Richard Biener  <rguenther@suse.de>
2420
2421         * params.def (PARAM_DSE_MAX_ALIAS_QUERIES_PER_STORE): New param.
2422         * doc/invoke.texi (dse-max-alias-queries-per-store): Document.
2423         * tree-ssa-dse.c: Include tree-ssa-loop.h.
2424         (check_name): New callback.
2425         (dse_classify_store): Track cycles via a visited bitmap of PHI
2426         defs and simplify handling of in-loop and across loop dead stores
2427         and properly fail for loop-variant refs.  Handle byte-tracking with
2428         multiple defs.  Use PARAM_DSE_MAX_ALIAS_QUERIES_PER_STORE for
2429         limiting the walk.
2430
2431 2018-05-16  Richard Sandiford  <richard.sandiford@linaro.org>
2432
2433         * tree-vectorizer.h (vect_get_vector_types_for_stmt): Declare.
2434         (vect_get_mask_type_for_stmt): Likewise.
2435         * tree-vect-slp.c (vect_two_operations_perm_ok_p): New function,
2436         split out from...
2437         (vect_build_slp_tree_1): ...here.  Use vect_get_vector_types_for_stmt
2438         to determine the statement's vector type and the vector type that
2439         should be used for calculating nunits.  Deal with cases in which
2440         the type has to be deferred.
2441         (vect_slp_analyze_node_operations): Use vect_get_vector_types_for_stmt
2442         and vect_get_mask_type_for_stmt to calculate STMT_VINFO_VECTYPE.
2443         * tree-vect-loop.c (vect_determine_vf_for_stmt_1)
2444         (vect_determine_vf_for_stmt): New functions, split out from...
2445         (vect_determine_vectorization_factor): ...here.
2446         * tree-vect-stmts.c (vect_get_vector_types_for_stmt)
2447         (vect_get_mask_type_for_stmt): New functions, split out from
2448         vect_determine_vectorization_factor.
2449
2450 2018-05-16  Richard Biener  <rguenther@suse.de>
2451
2452         * tree-cfg.c (verify_gimple_assign_ternary): Properly
2453         verify the [VEC_]COND_EXPR embedded comparison.
2454
2455 2018-05-15  Martin Sebor  <msebor@redhat.com>
2456
2457         PR tree-optimization/85753
2458         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Handle
2459         RECORD_TYPE in addition to ARRAY_TYPE.
2460
2461 2018-05-15  Martin Sebor  <msebor@redhat.com>
2462
2463         PR middle-end/85643
2464         * calls.c (get_attr_nonstring_decl): Handle MEM_REF.
2465
2466 2018-05-15  Richard Biener  <rguenther@suse.de>
2467
2468         * tree-ssa-dse.c (dse_classify_store): Remove use_stmt parameter,
2469         add by_clobber_p one.  Change algorithm to collect all defs
2470         representing uses we need to walk and try reducing them to
2471         a single one before failing.
2472         (dse_dom_walker::dse_optimize_stmt): Adjust.
2473
2474 2018-05-13  Mark Wielaard  <mark@klomp.org>
2475
2476         * dwarf2out.c (dwarf_OP): Handle DW_OP_addrx and DW_OP_constx.
2477         (size_of_loc_descr): Likewise.
2478         (output_loc_operands): Likewise.
2479         (output_loc_operands_raw): Likewise.
2480         (dw_addr_op): Use dwarf_OP () for DW_OP_constx and DW_OP_addrx.
2481         (resolve_addr_in_expr): Handle DW_OP_addrx and DW_OP_constx.
2482         (hash_loc_operands): Likewise.
2483         (compare_loc_operands): Likewise.
2484
2485 2018-05-14  Mark Wielaard  <mark@klomp.org>
2486
2487         * dwarf2out.c (count_index_addrs): New function.
2488         (dwarf2out_finish): Use count_index_addrs to calculate addrs_length.
2489
2490 2018-05-15  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
2491
2492         PR tree-optimization/83648
2493         * ipa-pure-const.c (malloc_candidate_p): Allow function with NULL
2494         return value as malloc candidate.
2495
2496 2018-05-15  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
2497
2498         PR ipa/85734
2499         * ipa-pure-const.c (warn_function_malloc): Pass value of known_finite
2500         param as true in call to suggest_attribute.
2501
2502 2018-05-14  Segher Boessenkool  <segher@kernel.crashing.org>
2503
2504         * doc/invoke.texi (RS/6000 and PowerPC Options): Delete @itemx for
2505         -mreadonly-in-sdata.
2506
2507 2018-05-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
2508
2509         * config/aarch64/aarch64-simd.md (*aarch64_crypto_aese_fused):
2510         New pattern.
2511         (aarch64_crypto_aesd_fused): Likewise.
2512
2513 2018-05-14  Wilco Dijkstra  <wdijkstr@arm.com>
2514
2515         * config/aarch64/aarch64.md (mov<mode>): Remove '*' in alternatives.
2516         (movsi_aarch64): Likewise.
2517         (load_pairsi): Likewise.
2518         (load_pairdi): Likewise.
2519         (store_pairsi): Likewise.
2520         (store_pairdi): Likewise.
2521         (load_pairsf): Likewise.
2522         (load_pairdf): Likewise.
2523         (store_pairsf): Likewise.
2524         (store_pairdf): Likewise.
2525         (zero_extend): Likewise.
2526         (trunc): Swap alternatives.
2527         (fcvt_target): Add '?' to prefer w over r.
2528
2529 2018-05-14  Jakub Jelinek  <jakub@redhat.com>
2530
2531         PR target/85756
2532         * config/i386/i386.md: Disallow non-commutative arithmetics in
2533         last twpeephole for mem {+,-,&,|,^}= x; mem != 0 after cmpelim
2534         optimization.  Use COMMUTATIVE_ARITH_P test rather than != MINUS
2535         in the peephole2 before it.
2536
2537 2018-05-14  Sebastian Peryt  <sebastian.peryt@intel.com>
2538
2539         * common/config/i386/i386-common.c (OPTION_MASK_ISA_CLDEMOTE_SET,
2540         OPTION_MASK_ISA_CLDEMOTE_UNSET): New defines.
2541         (ix86_handle_option): Handle -mcldemote.
2542         * config.gcc: New header.
2543         * config/i386/cldemoteintrin.h: New file.
2544         * config/i386/cpuid.h (bit_CLDEMOTE): New bit.
2545         * config/i386/driver-i386.c (host_detect_local_cpu): Detect
2546         -mcldemote.
2547         * config/i386/i386-c.c (ix86_target_macros_internal): Handle
2548         OPTION_MASK_ISA_CLDEMOTE.
2549         * config/i386/i386.c (ix86_target_string): Add -mcldemote.
2550         (ix86_valid_target_attribute_inner_p): Ditto.
2551         (enum ix86_builtins): Add IX86_BUILTIN_CLDEMOTE.
2552         (ix86_init_mmx_sse_builtins): Define __builtin_ia32_cldemote.
2553         (ix86_expand_builtin): Expand IX86_BUILTIN_CLDEMOTE.
2554         * config/i386/i386.h (TARGET_CLDEMOTE, TARGET_CLDEMOTE_P): New.
2555         * config/i386/i386.md (UNSPECV_CLDEMOTE): New.
2556         (cldemote): New.
2557         * config/i386/i386.opt: Add -mcldemote.
2558         * config/i386/x86intrin.h: New header.
2559         * doc/invoke.texi: Add -mcldemote.
2560
2561 2018-05-14  Richard Biener  <rguenther@suse.de>
2562
2563         * doc/match-and-simplify.texi: Adjust :s documentation.
2564
2565 2018-05-14  Alexander Monakov  <amonakov@ispras.ru>
2566
2567         * sort.cc (REORDER_23): Pass the type for the temporaries instead of
2568         intended memcpy size.
2569         (REORDER_45): Likewise.
2570
2571 2018-05-13  Alexander Monakov  <amonakov@ispras.ru>
2572
2573         * sort.cc: New file.
2574         * system.h [!CHECKING_P] (qsort): Redirect to gcc_qsort.
2575         * vec.c (qsort_chk): Use gcc_qsort.
2576         * Makefile.in (OBJS-libcommon): Add sort.o.
2577         (build/sort.o): New target.  Use it...
2578         (BUILD_RTL): ... here, and...
2579         (build/gencfn-macros): ... here, and...
2580         (build/genmatch): ... here.
2581
2582 2018-05-13  Kito Cheng  <kito.cheng@gmail.com>
2583             Chung-Ju Wu  <jasonwucj@gmail.com>
2584
2585         * config.gcc (nds32*-*-*): Check that n15 is valid to --with-cpu.
2586         * config/nds32/nds32-graywolf.md: New file.
2587         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_GRAYWOLF.
2588         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n15
2589         pipeline.
2590         * config/nds32/nds32-protos.h: More declarations for n15 pipeline.
2591         * config/nds32/nds32-utils.c: More implementations for n15 pipeline.
2592         * config/nds32/nds32.md (pipeline_model): Add graywolf.
2593         * config/nds32/nds32.opt (mcpu): Support n15 pipeline cpus.
2594         * config/nds32/pipelines.md: Include n15 settings.
2595
2596 2018-05-13  Kito Cheng  <kito.cheng@gmail.com>
2597             Chung-Ju Wu  <jasonwucj@gmail.com>
2598
2599         * config.gcc (nds32*-*-*): Check that n12/n13 are valid to --with-cpu.
2600         * config/nds32/nds32-n13.md: New file.
2601         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_N12 and CPU_N13.
2602         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n12/n13
2603         pipeline.
2604         * config/nds32/nds32-protos.h: More declarations for n12/n13 pipeline.
2605         * config/nds32/nds32.md (pipeline_model): Add n13.
2606         * config/nds32/nds32.opt (mcpu): Support n12/n13 pipeline cpus.
2607         * config/nds32/pipelines.md: Include n13 settings.
2608
2609 2018-05-13  Kito Cheng  <kito.cheng@gmail.com>
2610             Chung-Ju Wu  <jasonwucj@gmail.com>
2611
2612         * config.gcc (nds32*-*-*): Check that n10/d10 are valid to --with-cpu.
2613         * config/nds32/nds32-n10.md: New file.
2614         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_N10.
2615         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n10
2616         pipeline.
2617         * config/nds32/nds32-protos.h: More declarations for n10 pipeline.
2618         * config/nds32/nds32-utils.c: More implementations for n10 pipeline.
2619         * config/nds32/nds32.md (pipeline_model): Add n10.
2620         * config/nds32/nds32.opt (mcpu): Support n10 pipeline cpus.
2621         * config/nds32/pipelines.md: Include n10 settings.
2622
2623 2018-05-13  Monk Chiang  <sh.chiang04@gmail.com>
2624             Kito Cheng  <kito.cheng@gmail.com>
2625             Chung-Ju Wu  <jasonwucj@gmail.com>
2626
2627         * config.gcc (nds32be-*-*): Handle --with-ext-dsp.
2628         * config/nds32/constants.md (unspec_element, unspec_volatile_element):
2629         Add enum values for DSP extension instructions.
2630         * config/nds32/constraints.md (Iu06, IU06, CVp5, CVs5, CVs2, CVhi):
2631         New constraints.
2632         * config/nds32/iterators.md (shifts, shiftrt, sat_plus, all_plus,
2633         sat_minus, all_minus, plus_minus, extend, sumax, sumin, sumin_max):
2634         New code iterators.
2635         (su, zs, uk, opcode, add_rsub, add_sub): New code attributes.
2636         * config/nds32/nds32-dspext.md: New file for DSP implementation.
2637         * config/nds32/nds32-intrinsic.c: Implementation of DSP extension.
2638         * config/nds32/nds32-intrinsic.md: Likewise.
2639         * config/nds32/nds32_intrinsic.h: Likewise.
2640         * config/nds32/nds32-md-auxiliary.c: Likewise.
2641         * config/nds32/nds32-memory-manipulation.c: Consider DSP extension.
2642         * config/nds32/nds32-predicates.c (const_vector_to_hwint): New.
2643         (nds32_valid_CVp5_p, nds32_valid_CVs5_p): New.
2644         (nds32_valid_CVs2_p, nds32_valid_CVhi_p): New.
2645         * config/nds32/nds32-protos.h: New declarations for DSP extension.
2646         * config/nds32/nds32-utils.c (extract_mac_non_acc_rtx): New case
2647         TYPE_DMAC in switch statement.
2648         * config/nds32/nds32.c: New checking and implementation for DSP
2649         extension instructions.
2650         * config/nds32/nds32.h: Likewise.
2651         * config/nds32/nds32.md: Likewise.
2652         * config/nds32/nds32.opt (mhw-abs, mext-dsp): New options.
2653         * config/nds32/predicates.md: Implement new predicates for DSP
2654         extension.
2655
2656 2018-05-11  Michael Meissner  <meissner@linux.vnet.ibm.com>
2657
2658         * config/rs6000/rs6000.md (mov<mode>_softfloat, FMOVE32):
2659         Reformat alternatives and attributes so it is easier to identify
2660         which constraints/attributes go with which instruction.
2661         (mov<mode>_hardfloat32, FMOVE64): Likewise.
2662         (mov<mode>_softfloat32, FMOVE64): Likewise.
2663         (mov<mode>_hardfloat64, FMOVE64): Likewise.
2664         (mov<mode>_softfloat64, FMOVE64): Likewise.
2665
2666 2018-05-11  Kelvin Nilsen  <kelvin@gcc.gnu.org>
2667
2668         * doc/extend.texi (PowerPC Built-in Functions): Rename this
2669         subsection.
2670         (Basic PowerPC Built-in Functions): The new name of the
2671         subsection previously known as "PowerPC Built-in Functions".
2672         (Basic PowerPC Built-in Functions Available on all Configurations):
2673         New subsubsection.
2674         (Basic PowerPC Built-in Functions Available on ISA 2.05): Likewise.
2675         (Basic PowerPC Built-in Functions Available on ISA 2.06): Likewise.
2676         (Basic PowerPC Built-in Functions Available on ISA 2.07): Likewise.
2677         (Basic PowerPC Built-in Functions Available on ISA 3.0): Likewise.
2678
2679 2018-05-11  Martin Jambor  <mjambor@suse.cz>
2680
2681         PR ipa/85655
2682         * ipa-cp.c (intersect_with_plats): Check that the lattice contains
2683         single const.
2684
2685 2018-05-11  Richard Earnshaw  <rearnsha@arm.com>
2686
2687         PR target/85733
2688         * config/arm/arm-cpus.in (fgroup ARMv6m): Add be8 feature.
2689
2690 2018-05-11  Sebastian Peryt  <sebastian.peryt@intel.com>
2691
2692         * common/config/i386/i386-common.c (OPTION_MASK_ISA_WAITPKG_SET,
2693         OPTION_MASK_ISA_WAITPKG_UNSET): New defines.
2694         (ix86_handle_option): Handle -mwaitpkg.
2695         * config.gcc: New header.
2696         * config/i386/cpuid.h (bit_WAITPKG): New bit.
2697         * config/i386/driver-i386.c (host_detect_local_cpu): Detect -mwaitpkg.
2698         * config/i386/i386-builtin-types.def ((UINT8, UNSIGNED, UINT64)): New
2699         function type.
2700         * config/i386/i386-c.c (ix86_target_macros_internal): Handle
2701         OPTION_MASK_ISA_WAITPKG.
2702         * config/i386/i386.c (ix86_target_string): Add -mwaitpkg.
2703         (ix86_option_override_internal): Add PTA_WAITPKG.
2704         (ix86_valid_target_attribute_inner_p): Add -mwaitpkg.
2705         (enum ix86_builtins): Add IX86_BUILTIN_UMONITOR, IX86_BUILTIN_UMWAIT,
2706         IX86_BUILTIN_TPAUSE.
2707         (ix86_init_mmx_sse_builtins): Define __builtin_ia32_umonitor,
2708         __builtin_ia32_umwait and __builtin_ia32_tpause.
2709         (ix86_expand_builtin): Expand IX86_BUILTIN_UMONITOR,
2710         IX86_BUILTIN_UMWAIT, IX86_BUILTIN_TPAUSE.
2711         * config/i386/i386.h (TARGET_WAITPKG, TARGET_WAITPKG_P): New.
2712         * config/i386/i386.md (UNSPECV_UMWAIT, UNSPECV_UMONITOR,
2713         UNSPECV_TPAUSE): New.
2714         (umwait, umwait_rex64, umonitor_<mode>, tpause, tpause_rex64): New.
2715         * config/i386/i386.opt: Add -mwaitpkg.
2716         * config/i386/waitpkgintrin.h: New file.
2717         * config/i386/x86intrin.h: New header.
2718         * doc/invoke.texi: Add -mwaitpkg.
2719
2720 2018-05-11  Richard Earnshaw  <rearnsha@arm.com>
2721
2722         PR target/85606
2723         * config/arm/arm-cpus.in: Add comment that ARMv6-m and ARMv6S-m are now
2724         equivalent.
2725         (cortex-m0): Use armv6s-m isa.
2726         (cortex-m0plus): Likewise.
2727         (cortex-m1): Likewise.
2728         (cortex-m0.small-multiply): Likewise.
2729         (cortex-m0plus.small-multiply): Likewise.
2730         (cortex-m1.small-multiply): Likewise.
2731
2732 2018-05-11  Allan Sandfeld Jensen  <allan.jensen@qt.io>
2733             Jakub Jelinek  <jakub@redhat.com>
2734
2735         PR tree-optimization/85692
2736         * tree-ssa-forwprop.c (simplify_vector_constructor): Try two
2737         source permute as well.
2738
2739 2018-05-11  Martin Liska  <mliska@suse.cz>
2740
2741         PR sanitizer/85556
2742         * doc/extend.texi: Document LLVM style format for no_sanitize
2743         attribute.
2744
2745 2018-05-10  Michael Meissner  <meissner@linux.vnet.ibm.com>
2746
2747         * config/rs6000/rs6000.c (mode_supports_dq_form): Rename
2748         mode_supports_vsx_dform_quad to mode_supports_dq_form.
2749         (mode_supports_vsx_dform_quad): Likewise.
2750         (mode_supports_vmx_dform): Move these functions to be next to the
2751         other mode_supports functions.
2752         (mode_supports_dq_form): Likewise.
2753         (quad_address_p): Change calls of mode_supports_vsx_dform_quad to
2754         mode_supports_dq_form.
2755         (reg_offset_addressing_ok_p): Likewise.
2756         (offsettable_ok_by_alignment): Likewise.
2757         (rs6000_legitimate_offset_address_p): Likewise.
2758         (legitimate_lo_sum_address_p): Likewise.
2759         (rs6000_legitimize_address): Likewise.
2760         (rs6000_legitimize_reload_address): Likewise.
2761         (rs6000_secondary_reload_inner): Likewise.
2762         (rs6000_preferred_reload_class): Likewise.
2763         (rs6000_output_move_128bit): Likewise.
2764
2765 2018-05-10  Uros Bizjak  <ubizjak@gmail.com>
2766
2767         * config/i386/i386.c (ix86_expand_builtin) <case IX86_BUILTIN_RDPID>:
2768         Generate SImode target register for null target.
2769         <case IX86_BUILTIN_XGETBV>: Ditto.
2770         <case IX86_BUILTIN_XSETBV>: Optimize LSHIFTRT generation.
2771         * config/i386/xsaveintrin.h (_xgetbv): Add missing return.
2772
2773 2018-05-10  Carl Love  <cel@us.ibm.com>
2774
2775         * config/rs6000/rs6000.md (prefetch): Generate ISA 2.06 instructions
2776         dcbtt and dcbtstt if operands[2] is 0.
2777
2778 2018-05-10  Uros Bizjak  <ubizjak@gmail.com>
2779
2780         PR target/85693
2781         * config/i386/sse.md (usadv64qi): New expander.
2782
2783 2018-05-10  Segher Boessenkool  <segher@kernel.crashing.org>
2784
2785         * config/rs6000/altivec.md (altivec_vmrghb, altivec_vmrghh,
2786         altivec_vmrghw, altivec_vmrglb, altivec_vmrglh, altivec_vmrglw): Remove
2787         -maltivec=be support.
2788         (vec_widen_umult_even_v16qi, vec_widen_smult_even_v16qi,
2789         vec_widen_umult_even_v8hi, vec_widen_smult_even_v8hi,
2790         vec_widen_umult_even_v4si, vec_widen_smult_even_v4si,
2791         vec_widen_umult_odd_v16qi, vec_widen_smult_odd_v16qi,
2792         vec_widen_umult_odd_v8hi, vec_widen_smult_odd_v8hi,
2793         vec_widen_umult_odd_v4si, vec_widen_smult_odd_v4si, altivec_vpkpx,
2794         altivec_vpks<VI_char>ss, altivec_vpks<VI_char>us,
2795         altivec_vpku<VI_char>us, altivec_vpku<VI_char>um, altivec_vsum2sws,
2796         altivec_vsumsws): Adjust.
2797         (altivec_vspltb *altivec_vspltb_internal, altivec_vsplth,
2798         *altivec_vsplth_internal, altivec_vspltw, *altivec_vspltw_internal,
2799         altivec_vspltsf, *altivec_vspltsf_internal): Remove -maltivec=be
2800         support.
2801         (altivec_vperm_<mode>, altivec_vperm_<mode>_uns,
2802         altivec_vupkhs<VU_char>, altivec_vupkls<VU_char>, altivec_vupkhpx,
2803         altivec_vupklpx, altivec_lvsl, altivec_lvsr): Adjust.
2804         (altivec_lve<VI_char>x): Delete expand.
2805         (*altivec_lve<VI_char>x_internal): Rename to...
2806         (altivec_lve<VI_char>x): ... this.
2807         (altivec_lvxl_<mode>): Delete expand.
2808         (*altivec_lvxl_<mode>_internal): Rename to ...
2809         (altivec_lvxl_<mode>): ... this.
2810         (altivec_stvxl_<mode>): Delete expand.
2811         (*altivec_stvxl_<mode>_internal): Rename to ...
2812         (altivec_stvxl_<mode>): ... this.
2813         (altivec_stve<VI_char>x): Delete expand.
2814         (*altivec_stve<VI_char>x_internal): Rename to ...
2815         (altivec_stve<VI_char>x): ... this.
2816         (doublee<mode>2, unsdoubleev4si2, doubleo<mode>2, unsdoubleov4si2,
2817         doubleh<mode>2, unsdoublehv4si2, doublel<mode>2, unsdoublelv4si2,
2818         reduc_plus_scal_<mode>): Adjust.
2819         * config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Adjust
2820         comment.
2821         (rs6000_cpu_cpp_builtins): Adjust.
2822         (altivec_resolve_overloaded_builtin): Remove -maltivec=be support.
2823         * config/rs6000/rs6000-protos.h (altivec_expand_lvx_be,
2824         altivec_expand_stvx_be, altivec_expand_stvex_be): Delete.
2825         * config/rs6000/rs6000.c (rs6000_option_override_internal): Remove
2826         -maltivec=be support.
2827         (rs6000_split_vec_extract_var): Adjust.
2828         (rs6000_split_v4si_init): Adjust.
2829         (swap_selector_for_mode): Delete.
2830         (altivec_expand_lvx_be, altivec_expand_stvx_be,
2831         altivec_expand_stvex_be): Delete.
2832         (altivec_expand_lv_builtin, altivec_expand_stv_builtin): Remove
2833         -maltivec=be support.
2834         (rs6000_gimple_fold_builtin): Ditto.
2835         (rs6000_generate_float2_double_code, rs6000_generate_float2_code):
2836         Adjust.
2837         * config/rs6000/rs6000.h (VECTOR_ELT_ORDER_BIG): Delete.
2838         (TARGET_DIRECT_MOVE_64BIT): Adjust.
2839         * config/rs6000/rs6000.md (split for extendsidi2 for vectors): Adjust.
2840         * config/rs6000/rs6000.opt (maltivec=le, maltivec=be): Delete.
2841         * config/rs6000/vsx.md (floate<mode>, unsfloatev2di, floato<mode>,
2842         unsfloatov2di, vsignedo_v2df, vsignede_v2df, vunsignedo_v2df,
2843         vunsignede_v2df, vsx_extract_<mode>_p9, *vsx_extract_si,
2844         *vsx_extract_<mode>_p8, *vsx_extract_si_<uns>float_df,
2845         *vsx_extract_si_<uns>float_<mode>, vsx_set_<mode>_p9, vsx_set_v4sf_p9,
2846         *vsx_insert_extract_v4sf_p9, *vsx_insert_extract_v4sf_p9_2, and an
2847         anonymous split): Adjust.
2848         (vsx_mergel_<mode>, vsx_mergeh_<mode>): Remove -maltivec=be support.
2849         (vsx_xxspltd_<mode>, extract4b, insert4b): Adjust.
2850
2851 2018-05-10  Eric Botcazou  <ebotcazou@adacore.com>
2852
2853         * configure.ac (gcc_gxx_include_dir_add_sysroot): Set it to 1 only
2854         when --with-gxx-include-dir is also specified.
2855         * configure: Regenerate.
2856
2857 2018-05-09  Jim Wilson  <jimw@sifive.com>
2858
2859         PR target/84797
2860         * config.gcc (riscv*-*-*): Handle --with-multilib-list.
2861         * config/riscv/t-withmultilib: New.
2862         * config/riscv/withmultilib.h: New.
2863         * doc/install.texi: Document RISC-V --with-multilib-list support.
2864
2865 2018-05-09  Richard Biener  <rguenther@suse.de>
2866
2867         * tree-vect-slp.c (vect_bb_slp_scalar_cost): Fill a cost
2868         vector.
2869         (vect_bb_vectorization_profitable_p): Adjust.  Compute
2870         actual scalar cost using the cost vector and the add_stmt_cost
2871         machinery.
2872
2873 2018-05-09  Segher Boessenkool  <segher@kernel.crashing.org>
2874
2875         PR rtl-optimization/85645
2876         * config/rs6000/rs6000.c (rs6000_emit_prologue_components): Put a SET
2877         in the REG_CFA_REGISTER note for LR, don't leave it empty.
2878
2879 2018-05-09  Segher Boessenkool  <segher@kernel.crashing.org>
2880
2881         PR rtl-optimization/85645
2882         * shrink-wrap.c (spread_components): Return a boolean saying if
2883         anything was changed.
2884         (try_shrink_wrapping_separate): Iterate spread_components until
2885         nothing changes anymore.
2886
2887 2018-05-09  Segher Boessenkool  <segher@kernel.crashing.org>
2888
2889         PR rtl-optimization/85645
2890         * regrename.c (build_def_use): Also kill the chains that include the
2891         destination of a REG_CFA_REGISTER note.
2892
2893 2018-05-09  Segher Boessenkool  <segher@kernel.crashing.org>
2894
2895         PR rtl-optimization/85645
2896         *  regcprop.c (copyprop_hardreg_forward_1): Don't propagate into an
2897         insn that has a REG_CFA_REGISTER note.
2898
2899 2018-05-09  Richard Sandiford  <richard.sandiford@linaro.org>
2900
2901         * cfgexpand.c (expand_clobber): New function.
2902         (expand_gimple_stmt_1): Use it.
2903         * tree-vect-stmts.c (vect_clobber_variable): New function,
2904         split out from...
2905         (vectorizable_simd_clone_call): ...here.
2906         (vectorizable_store): Emit a clobber either side of an
2907         IFN_STORE_LANES sequence.
2908         (vectorizable_load): Emit a clobber after an IFN_LOAD_LANES sequence.
2909
2910 2018-05-09  Tom de Vries  <tom@codesourcery.com>
2911
2912         PR target/85626
2913         * config/nvptx/nvptx.md (define_insn "trap", define_insn "trap_if_true")
2914         (define_insn "trap_if_false"): Add exit after trap.
2915
2916 2018-05-09  Eric Botcazou  <ebotcazou@adacore.com>
2917
2918         PR rtl-optimization/85638
2919         * bb-reorder.c: Include common/common-target.h.
2920         (create_forwarder_block): New function extracted from...
2921         (fix_up_crossing_landing_pad): ...here.  Rename into...
2922         (dw2_fix_up_crossing_landing_pad): ...this.
2923         (sjlj_fix_up_crossing_landing_pad): New function.
2924         (find_rarely_executed_basic_blocks_and_crossing_edges): In SJLJ mode,
2925         call sjlj_fix_up_crossing_landing_pad if there are incoming EH edges
2926         from both partitions and exit the loop after one iteration.
2927
2928 2018-05-08  Kelvin Nilsen  <kelvin@gcc.gnu.org>
2929
2930         Revert:
2931         * doc/extend.texi (PowerPC Built-in Functions): Rename this
2932         subsection.
2933         (Basic PowerPC Built-in Functions): The new name of the
2934         subsection previously known as "PowerPC Built-in Functions".
2935         (Basic PowerPC Built-in Functions Available on all Configurations):
2936         New subsubsection.
2937         (Basic PowerPC Built-in Functions Available on ISA 2.05): New
2938         subsubsection.
2939         (Basic PowerPC Built-in Functions Available on ISA 2.06): New
2940         subsubsection.
2941         (Basic PowerPC Built-in Functions Available on ISA 2.07): New
2942         subsubsection.
2943         (Basic PowerPC Built-in Functions Available on ISA 3.0): New
2944         subsubsection.
2945
2946 2018-05-08  Jim Wilson  <jimw@sifive.com>
2947
2948         * config/riscv/linux.h (MUSL_ABI_SUFFIX): Delete unnecessary backslash.
2949         (LD_EMUL_SUFFIX): New.
2950         (LINK_SPEC): Use it.
2951
2952 2018-05-08  Kelvin Nilsen  <kelvin@gcc.gnu.org>
2953
2954         * doc/extend.texi (PowerPC Built-in Functions): Rename this
2955         subsection.
2956         (Basic PowerPC Built-in Functions): The new name of the
2957         subsection previously known as "PowerPC Built-in Functions".
2958         (Basic PowerPC Built-in Functions Available on all Configurations):
2959         New subsubsection.
2960         (Basic PowerPC Built-in Functions Available on ISA 2.05): New
2961         subsubsection.
2962         (Basic PowerPC Built-in Functions Available on ISA 2.06): New
2963         subsubsection.
2964         (Basic PowerPC Built-in Functions Available on ISA 2.07): New
2965         subsubsection.
2966         (Basic PowerPC Built-in Functions Available on ISA 3.0): New
2967         subsubsection.
2968
2969 2018-05-08  Jakub Jelinek  <jakub@redhat.com>
2970
2971         PR target/85683
2972         * config/i386/i386.md: Add peepholes for mem {+,-,&,|,^}= x; mem != 0
2973         after cmpelim optimization.
2974
2975 2018-05-08  Olga Makhotina  <olga.makhotina@intel.com>
2976
2977         * config.gcc: Support "goldmont".
2978         * config/i386/driver-i386.c (host_detect_local_cpu): Detect "goldmont".
2979         * config/i386/i386-c.c (ix86_target_macros_internal): Handle
2980         PROCESSOR_GOLDMONT.
2981         * config/i386/i386.c (m_GOLDMONT): Define.
2982         (processor_target_table): Add "goldmont".
2983         (PTA_GOLDMONT): Define.
2984         (ix86_lea_outperforms): Add TARGET_GOLDMONT.
2985         (get_builtin_code_for_version): Handle PROCESSOR_GOLDMONT.
2986         (fold_builtin_cpu): Add M_INTEL_GOLDMONT.
2987         (fold_builtin_cpu): Add "goldmont".
2988         (ix86_add_stmt_cost): Add TARGET_GOLDMONT.
2989         (ix86_option_override_internal): Add "goldmont".
2990         * config/i386/i386.h (processor_costs): Define TARGET_GOLDMONT.
2991         (processor_type): Add PROCESSOR_GOLDMONT.
2992         * config/i386/i386.md: Add CPU "glm".
2993         * config/i386/glm.md: New file.
2994         * config/i386/x86-tune.def: Add m_GOLDMONT.
2995         * doc/invoke.texi: Add goldmont as x86 -march=/-mtune= CPU type.
2996
2997 2018-05-08  Jakub Jelinek  <jakub@redhat.com>
2998
2999         PR target/85572
3000         * config/i386/i386.c (ix86_expand_sse2_abs): Handle E_V2DImode and
3001         E_V4DImode.
3002         * config/i386/sse.md (abs<mode>2): Use VI_AVX2 iterator instead of
3003         VI1248_AVX512VL_AVX512BW.  Handle V2DImode and V4DImode if not
3004         TARGET_AVX512VL using ix86_expand_sse2_abs.  Formatting fixes.
3005
3006         PR target/85317
3007         * config/i386/i386.c (ix86_fold_builtin): Handle
3008         IX86_BUILTIN_{,P}MOVMSK{PS,PD,B}{,128,256}.
3009
3010         PR target/85480
3011         * config/i386/sse.md (ssequaterinsnmode): New mode attribute.
3012         (*<extract_type>_vinsert<shuffletype><extract_suf>_0): New pattern.
3013
3014 2018-05-08  Richard Earnshaw  <rearnsha@arm.com>
3015
3016         PR target/85658
3017         * config/arm/parsecpu.awk (check_cpu): Fix operator precedence.
3018         (check_arch): Likewise.
3019         (check_fpu): Return the result rather than printing it.
3020         (end arch): Fix operator precedence.
3021         (end cpu): Likewise.
3022         (END): Print the result from check_fpu.
3023
3024 2018-05-08  Richard Sandiford  <richard.sandiford@linaro.org>
3025             Alan Hayward  <alan.hayward@arm.com>
3026             David Sherwood  <david.sherwood@arm.com>
3027
3028         * config/aarch64/aarch64-sve.md (*pred_cmp<cmp_op><mode>_combine)
3029         (*pred_cmp<cmp_op><mode>, *fcm<cmp_op><mode>_and_combine)
3030         (*fcmuo<mode>_and_combine, *fcm<cmp_op><mode>_and)
3031         (*fcmuo<mode>_and): New patterns.
3032
3033 2018-05-08  Richard Sandiford  <richard.sandiford@linaro.org>
3034
3035         * config/aarch64/iterators.md (UNSPEC_COND_LO, UNSPEC_COND_LS)
3036         (UNSPEC_COND_HI, UNSPEC_COND_HS, UNSPEC_COND_UO): Delete.
3037         (SVE_INT_CMP, SVE_FP_CMP): New code iterators.
3038         (cmp_op, sve_imm_con): New code attributes.
3039         (SVE_COND_INT_CMP, imm_con): Delete.
3040         (cmp_op): Remove above unspecs from int attribute.
3041         * config/aarch64/aarch64-sve.md (*vec_cmp<cmp_op>_<mode>): Rename
3042         to...
3043         (*cmp<cmp_op><mode>): ...this.  Use UNSPEC_MERGE_PTRUE instead of
3044         comparison-specific unspecs.
3045         (*vec_cmp<cmp_op>_<mode>_ptest): Rename to...
3046         (*cmp<cmp_op><mode>_ptest): ...this and adjust likewise.
3047         (*vec_cmp<cmp_op>_<mode>_cc): Rename to...
3048         (*cmp<cmp_op><mode>_cc): ...this and adjust likewise.
3049         (*vec_fcm<cmp_op><mode>): Rename to...
3050         (*fcm<cmp_op><mode>): ...this and adjust likewise.
3051         (*vec_fcmuo<mode>): Rename to...
3052         (*fcmuo<mode>): ...this and adjust likewise.
3053         (*pred_fcm<cmp_op><mode>): New pattern.
3054         * config/aarch64/aarch64.c (aarch64_emit_unop, aarch64_emit_binop)
3055         (aarch64_emit_sve_ptrue_op, aarch64_emit_sve_ptrue_op_cc): New
3056         functions.
3057         (aarch64_unspec_cond_code): Remove handling of LTU, GTU, LEU, GEU
3058         and UNORDERED.
3059         (aarch64_gen_unspec_cond, aarch64_emit_unspec_cond): Delete.
3060         (aarch64_emit_sve_predicated_cond): New function.
3061         (aarch64_expand_sve_vec_cmp_int): Use aarch64_emit_sve_ptrue_op_cc.
3062         (aarch64_emit_unspec_cond_or): Replace with...
3063         (aarch64_emit_sve_or_conds): ...this new function.  Use
3064         aarch64_emit_sve_ptrue_op for the individual comparisons and
3065         aarch64_emit_binop to OR them together.
3066         (aarch64_emit_inverted_unspec_cond): Replace with...
3067         (aarch64_emit_sve_inverted_cond): ...this new function.  Use
3068         aarch64_emit_sve_ptrue_op for the comparison and
3069         aarch64_emit_unop to invert the result.
3070         (aarch64_expand_sve_vec_cmp_float): Update after the above
3071         changes.  Use aarch64_emit_sve_ptrue_op for native comparisons.
3072
3073 2018-05-07  Nathan Sidwell  <nathan@acm.org>
3074
3075         * doc/invoke.texi (C++ Dialect Options): Remove -ffor-scope.
3076         * doc/extend.texi (Deprecated Features): Remove -fno-for-scope
3077         (Backwards Compatibility): Likewise.
3078
3079 2018-05-07  Luis Machado  <luis.machado@linaro.org>
3080
3081         PR bootstrap/85681
3082         Revert:
3083         2018-05-07  Luis Machado  <luis.machado@linaro.org>
3084
3085         * config/aarch64/aarch64-protos.h (cpu_prefetch_tune)
3086         <prefetch_dynamic_strides>: New const bool field.
3087         * config/aarch64/aarch64.c (generic_prefetch_tune): Update to include
3088         prefetch_dynamic_strides.
3089         (exynosm1_prefetch_tune): Likewise.
3090         (thunderxt88_prefetch_tune): Likewise.
3091         (thunderx_prefetch_tune): Likewise.
3092         (thunderx2t99_prefetch_tune): Likewise.
3093         (qdf24xx_prefetch_tune): Likewise. Set prefetch_dynamic_strides
3094         to false.
3095         (aarch64_override_options_internal): Update to set
3096         PARAM_PREFETCH_DYNAMIC_STRIDES.
3097         * doc/invoke.texi (prefetch-dynamic-strides): Document new option.
3098         * params.def (PARAM_PREFETCH_DYNAMIC_STRIDES): New.
3099         * params.h (PARAM_PREFETCH_DYNAMIC_STRIDES): Define.
3100         * tree-ssa-loop-prefetch.c (should_issue_prefetch_p): Account for
3101         prefetch-dynamic-strides setting.
3102
3103         2018-05-07  Luis Machado  <luis.machado@linaro.org>
3104
3105         * config/aarch64/aarch64-protos.h (cpu_prefetch_tune)
3106         <minimum_stride>: New const int field.
3107         * config/aarch64/aarch64.c (generic_prefetch_tune): Update to include
3108         minimum_stride field.
3109         (exynosm1_prefetch_tune): Likewise.
3110         (thunderxt88_prefetch_tune): Likewise.
3111         (thunderx_prefetch_tune): Likewise.
3112         (thunderx2t99_prefetch_tune): Likewise.
3113         (qdf24xx_prefetch_tune): Likewise. Set minimum_stride to 2048.
3114         (aarch64_override_options_internal): Update to set
3115         PARAM_PREFETCH_MINIMUM_STRIDE.
3116         * doc/invoke.texi (prefetch-minimum-stride): Document new option.
3117         * params.def (PARAM_PREFETCH_MINIMUM_STRIDE): New.
3118         * params.h (PARAM_PREFETCH_MINIMUM_STRIDE): Define.
3119         * tree-ssa-loop-prefetch.c (should_issue_prefetch_p): Return false if
3120         stride is constant and is below the minimum stride threshold.
3121
3122 2018-05-07  Luis Machado  <luis.machado@linaro.org>
3123
3124         * config/aarch64/aarch64.c (qdf24xx_prefetch_tune) <l2_cache_size>: Set
3125         to 512.
3126
3127 2018-05-07  Luis Machado  <luis.machado@linaro.org>
3128
3129         * config/aarch64/aarch64-protos.h (cpu_prefetch_tune)
3130         <prefetch_dynamic_strides>: New const bool field.
3131         * config/aarch64/aarch64.c (generic_prefetch_tune): Update to include
3132         prefetch_dynamic_strides.
3133         (exynosm1_prefetch_tune): Likewise.
3134         (thunderxt88_prefetch_tune): Likewise.
3135         (thunderx_prefetch_tune): Likewise.
3136         (thunderx2t99_prefetch_tune): Likewise.
3137         (qdf24xx_prefetch_tune): Likewise. Set prefetch_dynamic_strides
3138         to false.
3139         (aarch64_override_options_internal): Update to set
3140         PARAM_PREFETCH_DYNAMIC_STRIDES.
3141         * doc/invoke.texi (prefetch-dynamic-strides): Document new option.
3142         * params.def (PARAM_PREFETCH_DYNAMIC_STRIDES): New.
3143         * params.h (PARAM_PREFETCH_DYNAMIC_STRIDES): Define.
3144         * tree-ssa-loop-prefetch.c (should_issue_prefetch_p): Account for
3145         prefetch-dynamic-strides setting.
3146
3147 2018-05-07  Luis Machado  <luis.machado@linaro.org>
3148
3149         * config/aarch64/aarch64-protos.h (cpu_prefetch_tune)
3150         <minimum_stride>: New const int field.
3151         * config/aarch64/aarch64.c (generic_prefetch_tune): Update to include
3152         minimum_stride field.
3153         (exynosm1_prefetch_tune): Likewise.
3154         (thunderxt88_prefetch_tune): Likewise.
3155         (thunderx_prefetch_tune): Likewise.
3156         (thunderx2t99_prefetch_tune): Likewise.
3157         (qdf24xx_prefetch_tune): Likewise. Set minimum_stride to 2048.
3158         (aarch64_override_options_internal): Update to set
3159         PARAM_PREFETCH_MINIMUM_STRIDE.
3160         * doc/invoke.texi (prefetch-minimum-stride): Document new option.
3161         * params.def (PARAM_PREFETCH_MINIMUM_STRIDE): New.
3162         * params.h (PARAM_PREFETCH_MINIMUM_STRIDE): Define.
3163         * tree-ssa-loop-prefetch.c (should_issue_prefetch_p): Return false if
3164         stride is constant and is below the minimum stride threshold.
3165
3166 2018-05-06  Jakub Jelinek  <jakub@redhat.com>
3167
3168         PR c++/85659
3169         * cfgexpand.c (expand_asm_stmt): Don't create a temporary if
3170         the type is addressable.  Don't force op into register if it has
3171         BLKmode.
3172
3173 2018-05-05  Roland McGrath  <mcgrathr@google.com>
3174
3175         PR other/77609
3176         * varasm.c (default_section_type_flags): Set SECTION_NOTYPE for
3177         any section for which we don't know a specific type it should have,
3178         regardless of name.  Previously this was done only for the exact
3179         names ".init_array", ".fini_array", and ".preinit_array".
3180         (default_elf_asm_named_section): Add comment about
3181         relationship with default_section_type_flags and SECTION_NOTYPE.
3182         (get_section): Don't consider it a type conflict if one side has
3183         SECTION_NOTYPE and the other doesn't, as long as neither has the
3184         SECTION_BSS et al used in the default_section_type_flags logic.
3185
3186 2018-05-05  Tom de Vries  <tom@codesourcery.com>
3187
3188         PR target/85653
3189         * config/nvptx/nvptx.c (WORKAROUND_PTXJIT_BUG_3): Define.
3190         (workaround_barsyncs): New function.
3191         (nvptx_reorg): Use workaround_barsyncs.
3192         * config/nvptx/nvptx.md (define_c_enum "unspecv"): Add UNSPECV_MEMBAR.
3193         (define_expand "nvptx_membar_cta"): New define_expand.
3194         (define_insn "*nvptx_membar_cta"): New insn.
3195
3196 2018-05-04  Pekka Jääskeläinen  <pekka.jaaskelainen@parmance.com>
3197
3198         * brig-builtins.def: Add consts to ptrs etc. in BRIG builtin defs.
3199         To improve optimization opportunities.
3200         * builtin-types.def: The new needed builtin types for the above.
3201
3202 2018-05-04  Richard Biener  <rguenther@suse.de>
3203
3204         * bb-reorder.c (sanitize_hot_paths): Release hot_bbs_to_check.
3205         * gimple-ssa-store-merging.c
3206         (imm_store_chain_info::output_merged_store): Remove redundant create,
3207         release split_store vector contents on failure.
3208         * tree-vect-slp.c (vect_schedule_slp_instance): Avoid leaking
3209         scalar stmt vector on cache hit.
3210
3211 2018-05-04  Segher Boessenkool  <segher@kernel.crashing.org>
3212
3213         * common/config/rs6000/rs6000-common.c (rs6000_handle_option): Remove
3214         Xilinx FP support.
3215         * config.gcc (powerpc-xilinx-eabi*): Remove.
3216         * config/rs6000/predicates.md (easy_fp_constant): Remove Xilinx FP
3217         support.
3218         (fusion_addis_mem_combo_load): Ditto.
3219         * config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Remove Xilinx
3220         FP support.
3221         (rs6000_cpu_cpp_builtins): Ditto.
3222         * config/rs6000/rs6000-linux.c
3223         (rs6000_linux_float_exceptions_rounding_supported_p): Ditto.
3224         * config/rs6000/rs6000-opts.h (enum fpu_type_t): Delete.
3225         * config/rs6000/rs6000.c (rs6000_debug_reg_global): Remove Xilinx FP
3226         support.
3227         (rs6000_setup_reg_addr_masks): Ditto.
3228         (rs6000_init_hard_regno_mode_ok): Ditto.
3229         (rs6000_option_override_internal): Ditto.
3230         (legitimate_lo_sum_address_p): Ditto.
3231         (rs6000_legitimize_address): Ditto.
3232         (rs6000_legitimize_reload_address): Ditto.
3233         (rs6000_legitimate_address_p): Ditto.
3234         (abi_v4_pass_in_fpr): Ditto.
3235         (setup_incoming_varargs): Ditto.
3236         (rs6000_gimplify_va_arg): Ditto.
3237         (rs6000_split_multireg_move): Ditto.
3238         (rs6000_savres_strategy): Ditto.
3239         (rs6000_emit_prologue_components): Ditto.
3240         (rs6000_emit_epilogue_components): Ditto.
3241         (rs6000_emit_prologue): Ditto.
3242         (rs6000_emit_epilogue): Ditto.
3243         (rs6000_elf_file_end): Ditto.
3244         (rs6000_function_value): Ditto.
3245         (rs6000_libcall_value): Ditto.
3246         * config/rs6000/rs6000.h: Ditto.
3247         (TARGET_MINMAX_SF, TARGET_MINMAX_DF): Delete, merge to ...
3248         (TARGET_MINMAX): ... this.  New.
3249         (TARGET_SF_FPR, TARGET_DF_FPR, TARGET_SF_INSN, TARGET_DF_INSN): Delete.
3250         * config/rs6000/rs6000.md: Remove Xilinx FP support.
3251         (*movsi_internal1_single): Delete.
3252         * config/rs6000/rs6000.opt (msingle-float, mdouble-float, msimple-fpu,
3253         mfpu=, mxilinx-fpu): Delete.
3254         * config/rs6000/singlefp.h: Delete.
3255         * config/rs6000/sysv4.h: Remove Xilinx FP support.
3256         * config/rs6000/t-rs6000: Ditto.
3257         * config/rs6000/t-xilinx: Delete.
3258         * gcc/config/rs6000/titan.md: Adjust for fp_type removal.
3259         * gcc/config/rs6000/vsx.md: Remove Xilinx FP support.
3260         (VStype_simple): Delete.
3261         (VSfptype_simple, VSfptype_mul, VSfptype_div, VSfptype_sqrt): Delete.
3262         * config/rs6000/xfpu.h: Delete.
3263         * config/rs6000/xfpu.md: Delete.
3264         * config/rs6000/xilinx.h: Delete.
3265         * config/rs6000/xilinx.opt: Delete.
3266         * gcc/doc/invoke.texi (RS/6000 and PowerPC Options): Remove
3267         -msingle-float, -mdouble-float, -msimple-fpu, -mfpu=, and -mxilinx-fpu.
3268
3269 2018-05-04  Tom de Vries  <tom@codesourcery.com>
3270
3271         PR libgomp/85639
3272         * builtins.c (expand_builtin_goacc_parlevel_id_size): Handle null target
3273         if ignore == 0.
3274
3275 2018-05-04  Richard Biener  <rguenther@suse.de>
3276
3277         PR middle-end/85627
3278         * tree-complex.c (update_complex_assignment): We are always in SSA form.
3279         (expand_complex_div_wide): Likewise.
3280         (expand_complex_operations_1): Likewise.
3281         (expand_complex_libcall): Preserve EH info of the original stmt.
3282         (tree_lower_complex): Handle removed blocks.
3283         * tree.c (build_common_builtin_nodes): Do not set ECF_NOTRHOW
3284         on complex multiplication and division libcall builtins.
3285
3286 2018-05-04  Richard Biener  <rguenther@suse.de>
3287
3288         PR middle-end/85574
3289         * fold-const.c (negate_expr_p): Restrict negation of operand
3290         zero of a division to when we know that can happen without
3291         overflow.
3292         (fold_negate_expr_1): Likewise.
3293
3294 2018-05-04  Jakub Jelinek  <jakub@redhat.com>
3295
3296         PR libstdc++/85466
3297         * real.h (real_nextafter): Declare.
3298         * real.c (real_nextafter): New function.
3299         * fold-const-call.c (fold_const_nextafter): New function.
3300         (fold_const_call_sss): Call it for CASE_CFN_NEXTAFTER and
3301         CASE_CFN_NEXTTOWARD.
3302         (fold_const_call_1): For CASE_CFN_NEXTTOWARD call fold_const_call_sss
3303         even when arg1_mode is different from arg0_mode.
3304
3305 2018-05-03  Nathan Sidwell  <nathan@acm.org>
3306
3307         * doc/extend.texi (Deprecated Features): Remove
3308         -ffriend-injection.
3309         (Backwards Compatibility): Likewise.
3310         * doc/invoke.texi (C++ Language Options): Likewise.
3311         (C++ Dialect Options): Likewise.
3312
3313 2018-05-03  Jakub Jelinek  <jakub@redhat.com>
3314
3315         PR target/85530
3316         * config/i386/avx512fintrin.h (_mm512_mullox_epi64,
3317         _mm512_mask_mullox_epi64): New intrinsics.
3318
3319 2018-05-03  Tom de Vries  <tom@codesourcery.com>
3320
3321         PR testsuite/85106
3322         * doc/sourcebuild.texi (Commands for use in dg-final, Scan optimization
3323         dump files): Add offload-tree.
3324
3325 2018-05-03  Richard Biener  <rguenther@suse.de>
3326
3327         PR tree-optimization/85615
3328         * tree-ssa-threadupdate.c (thread_block_1): Only allow exits
3329         to loops not nested in BBs loop father to avoid creating multi-entry
3330         loops.
3331
3332 2018-05-03  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
3333
3334         PR tree-optimization/70291
3335         * tree-complex.c (expand_complex_libcall): Add type, inplace_p
3336         arguments.  Change return type to tree.  Emit libcall as a new
3337         statement rather than replacing existing one when inplace_p is true.
3338         (expand_complex_multiplication_components): New function.
3339         (expand_complex_multiplication): Expand floating-point complex
3340         multiplication using the above.
3341         (expand_complex_division): Rename inner_type parameter to type.
3342         Update expand_complex_libcall call-site.
3343         (expand_complex_operations_1): Update expand_complex_multiplication
3344         and expand_complex_division call-sites.
3345
3346 2018-05-02  Jakub Jelinek  <jakub@redhat.com>
3347
3348         PR target/85582
3349         * config/i386/i386.md (*ashl<dwi>3_doubleword_mask,
3350         *ashl<dwi>3_doubleword_mask_1, *<shift_insn><dwi>3_doubleword_mask,
3351         *<shift_insn><dwi>3_doubleword_mask_1): In condition require that
3352         the highest significant bit of the shift count mask is clear.  In
3353         check whether and[sq]i3 is needed verify that all significant bits
3354         of the shift count other than the highest are set.
3355
3356 2018-05-02  Tom de Vries  <tom@codesourcery.com>
3357
3358         PR libgomp/82428
3359         * builtins.def (DEF_GOACC_BUILTIN_ONLY): Define.
3360         * omp-builtins.def (BUILT_IN_GOACC_PARLEVEL_ID)
3361         (BUILT_IN_GOACC_PARLEVEL_SIZE): New builtin.
3362         * builtins.c (expand_builtin_goacc_parlevel_id_size): New function.
3363         (expand_builtin): Call expand_builtin_goacc_parlevel_id_size.
3364         * doc/extend.texi (Other Builtins): Add __builtin_goacc_parlevel_id and
3365         __builtin_goacc_parlevel_size.
3366
3367 2018-05-02  Richard Biener  <rguenther@suse.de>
3368
3369         PR tree-optimization/85597
3370         * tree-vect-stmts.c (vectorizable_operation): For ternary SLP
3371         do not use split vect_get_vec_defs call but call vect_get_slp_defs
3372         directly.
3373
3374 2018-05-02  Tom de Vries  <tom@codesourcery.com>
3375
3376         PR testsuite/85106
3377         * doc/sourcebuild.texi (Commands for use in dg-final, Scan optimization
3378         dump files): Add ltrans-tree.
3379
3380 2018-05-02  Tom de Vries  <tom@codesourcery.com>
3381
3382         PR testsuite/85106
3383         * doc/sourcebuild.texi (Commands for use in dg-final, Scan optimization
3384         dump files): Add wpa-ipa.
3385
3386 2018-05-02  Segher Boessenkool  <segher@kernel.crashing.org>
3387
3388         * config.gcc (powerpc*-*-*): Remove paired.h.  Unsupport the
3389         powerpc*-*-linux*paired* target.
3390         * config/rs6000/750cl.h: Delete.
3391         * config/rs6000/paired.h: Delete.
3392         * config/rs6000/paired.md: Delete.
3393         * config/rs6000/predicates.md (easy_vector_constant): Remove paired
3394         float support.
3395         * config/rs6000/rs6000-builtin.def: Remove paired float support.
3396         * config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Update
3397         comment.  Remove paired float support.
3398         * config/rs6000/rs6000-modes.def: Remove V2SF and V2SI.
3399         * config/rs6000/rs6000-opts.h (enum rs6000_vector): Delete
3400         VECTOR_PAIRED.
3401         * config/rs6000/rs6000-protos.h (paired_expand_vector_init,
3402         paired_emit_vector_cond_expr, paired_expand_vector_move): Delete
3403         declarations.
3404         * config/rs6000/rs6000.c: Remove paired float support.
3405         (paired_expand_vector_init, paired_expand_vector_move,
3406         paired_emit_vector_compare, paired_emit_vector_cond_expr,
3407         (paired_expand_lv_builtin, paired_expand_stv_builtin,
3408         paired_expand_builtin, paired_expand_predicate_builtin,
3409         paired_init_builtins): Delete.
3410         * config/rs6000/rs6000.h: Remove paired float support.
3411         * config/rs6000/rs6000.md: Remove paired float support.
3412         (move_from_CR_ov_bit): Delete.
3413         * config/rs6000/rs6000.opt (mpaired): Delete.
3414         * config/rs6000/t-rs6000: Remove paired.md from MD_INCLUDES.
3415         * doc/invoke.texi (RS/6000 and PowerPC Options): Delete -mpaired.
3416
3417 2018-05-02  Richard Biener  <rguenther@suse.de>
3418
3419         PR middle-end/85567
3420         * gimplify.c (gimplify_save_expr): When in SSA form allow
3421         SAVE_EXPRs to compute to SSA vars.
3422
3423 2018-05-02  Jakub Jelinek  <jakub@redhat.com>
3424
3425         PR target/85582
3426         * config/i386/i386.md (*ashl<dwi>3_doubleword_mask,
3427         *ashl<dwi>3_doubleword_mask_1, *<shift_insn><dwi>3_doubleword_mask,
3428         *<shift_insn><dwi>3_doubleword_mask_1): If and[sq]i3 is needed, don't
3429         clobber operands[2], instead use a new pseudo.  Formatting fixes.
3430
3431 2018-05-02  Richard Sandiford  <richard.sandiford@linaro.org>
3432
3433         PR tree-optimization/85586
3434         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence): Only
3435         exit early for statements in the same group if the accesses are
3436         not strided.
3437
3438 2018-05-02  Tom de Vries  <tom@codesourcery.com>
3439
3440         PR lto/85451
3441         * lto-wrapper.c (compile_offload_image): Add "could not find mkoffload"
3442         error message.
3443
3444 2018-05-01  Marc Glisse  <marc.glisse@inria.fr>
3445
3446         PR tree-optimization/85143
3447         * match.pd (A<B&A<C): Extend to BIT_IOR_EXPR.
3448
3449 2018-05-01  Tom de Vries  <tom@codesourcery.com>
3450
3451         PR lto/85451
3452         * config/nvptx/mkoffload.c (main): Suggest using -B in "offload compiler
3453         not found" error message.
3454
3455 2018-05-01  Tom de Vries  <tom@codesourcery.com>
3456
3457         PR other/83786
3458         * vec.h (VEC_ORDERED_REMOVE_IF, VEC_ORDERED_REMOVE_IF_FROM_TO): Define.
3459         * vec.c (test_ordered_remove_if): New function.
3460         (vec_c_tests): Call test_ordered_remove_if.
3461         * dwarf2cfi.c (connect_traces): Use VEC_ORDERED_REMOVE_IF_FROM_TO.
3462         * lto-streamer-out.c (prune_offload_funcs): Use VEC_ORDERED_REMOVE_IF.
3463         * tree-vect-patterns.c (vect_pattern_recog_1): Use
3464         VEC_ORDERED_REMOVE_IF.
3465
3466 2018-05-01  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
3467
3468         PR tree-optimization/82665
3469         * vr-values.c (vr_values::extract_range_from_binary_expr): Handle
3470         pointer subtraction where arguments come from a memchr call.
3471
3472 2018-05-01  Jakub Jelinek  <jakub@redhat.com>
3473
3474         * configure.ac (LD_AS_NEEDED_OPTION, LD_NO_AS_NEEDED_OPTION): Use
3475         --push-state --as-needed and --pop-state instead of --as-needed and
3476         --no-as-needed if ld supports it.
3477         * configure: Regenerated.
3478
3479         PR web/85578
3480         * doc/install.texi2html: Replace _002d with - and _002a with * in
3481         generated html files using sed.
3482
3483 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
3484
3485         PR c++/85523
3486         * gcc-rich-location.c (blank_line_before_p): New function.
3487         (use_new_line): New function.
3488         (gcc_rich_location::add_fixit_insert_formatted): New function.
3489         * gcc-rich-location.h
3490         (gcc_rich_location::add_fixit_insert_formatted): New function.
3491
3492 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
3493
3494         * selftest.c (assert_streq): Rename "expected" and "actual" to
3495         "val1" and "val2".  Extend NULL-handling to cover both inputs
3496         symmetrically, while still requiring both to be non-NULL for a pass.
3497         * selftest.h (assert_streq): Rename "expected" and "actual" to
3498         "val1" and "val2".
3499         (ASSERT_EQ): Likewise.
3500         (ASSERT_EQ_AT): Likewise.
3501         (ASSERT_KNOWN_EQ): Likewise.
3502         (ASSERT_KNOWN_EQ_AT): Likewise.
3503         (ASSERT_NE): Likewise.
3504         (ASSERT_MAYBE_NE): Likewise.
3505         (ASSERT_MAYBE_NE_AT): Likewise.
3506         (ASSERT_STREQ): Likewise.  Clarify that both must be non-NULL for
3507         the assertion to pass.
3508         (ASSERT_STREQ_AT): Likewise.
3509
3510 2018-04-30  Jonathan Wakely  <jwakely@redhat.com>
3511
3512         * doc/invoke.texi (-fpie, -fPIE): Fix grammar and clarify
3513         interaction with -pie.
3514
3515 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
3516
3517         * selftest.h: Fix alphabetization of per-source-file selftest
3518         declarations.
3519
3520 2018-04-30  Jason Merrill  <jason@redhat.com>
3521
3522         PR c++/61982 - dead stores to destroyed objects.
3523         * gimplify.c (gimplify_modify_expr): Simplify complex lvalue on LHS
3524         of clobber.
3525
3526 2018-04-30  Jason Merrill  <jason@redhat.com>
3527
3528         * tree.c (build_clobber): New.
3529         * tree.h: Declare it.
3530         * gimplify.c (gimplify_bind_expr, gimplify_target_expr): Use it.
3531
3532 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
3533
3534         * diagnostic-show-locus.c (layout::layout): Update for
3535         location_get_source_line returning a char_span.
3536         (struct char_span): Move to input.h.
3537         (struct correction): Update for fields in char_span becoming
3538         private.
3539         (struct source_line): Update for location_get_source_line
3540         returning a char_span.
3541         (layout::print_line): Likewise.
3542         * edit-context.c (edited_file::print_content): Likewise.
3543         (edited_file::print_diff_hunk): Likewise.
3544         (edited_file::print_run_of_changed_lines): Likewise.
3545         (edited_file::get_num_lines): Likewise.
3546         (edited_line::edited_line): Likewise.
3547         * final.c (asm_show_source): Likewise.
3548         * input.c (location_get_source_line): Convert return type
3549         from const char * to char_span, losing the final "line_len"
3550         param.
3551         (dump_location_info): Update for the above.
3552         (get_substring_ranges_for_loc): Likewise.  Use a char_span
3553         when handling the literal within the line.
3554         (test_reading_source_line): Update for location_get_source_line
3555         returning a char_span.
3556         * input.h (class char_span): Move here from
3557         diagnostic-show-locus.c, converting from a struct to a class.
3558         Make data members private.
3559         (char_span::operator bool): New.
3560         (char_span::length): New.
3561         (char_span::get_buffer): New.
3562         (char_span::operator[]): New.
3563         (char_span::subspan): Make const.
3564         (char_span::xstrdup): New.
3565         (location_get_source_line): Convert return type from const char *
3566         to char_span, losing the final "line_size" param.
3567
3568 2018-04-30  Jan Hubicka  <jh@suse.cz>
3569
3570         * lto-wrapper.c (ltrans_priorities): New static var.
3571         (cmp_priority): New.
3572         (run_gcc): Read priorities and if doing parallel build order
3573         the Makefile by them.
3574
3575 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
3576
3577         * input.h (builtins_location_check): Convert to a STATIC_ASSERT.
3578
3579 2018-04-30  Richard Biener  <rguenther@suse.de>
3580
3581         * tree-cfg.c (verify_address): Remove base argument, add
3582         flag whether to check TREE_ADDRESSABLE and do that.
3583         (verify_expr): Remove.
3584         (verify_types_in_gimple_reference): Add pieces from verify_expr.
3585         (verify_gimple_assign_single): Likewise.
3586         (verify_gimple_switch): Likewise.
3587         (verify_expr_location_1): Dereference tp once.  Add (disabled)
3588         piece from verify_expr.
3589         (verify_gimple_in_cfg): Do not call verify_expr on all ops.
3590
3591 2018-04-30  Claudiu Zissulescu  <claziss@synopsys.com>
3592
3593         * config/arc/linux.h (CLEAR_INSN_CACHE): Define.
3594
3595 2018-04-30  Claudiu Zissulescu  <claziss@synopsys.com>
3596
3597         * config/arc/arc-protos.h (prepare_extend_operands): Remove.
3598         (small_data_pattern): Likewise.
3599         (arc_rewrite_small_data): Likewise.
3600         * config/arc/arc.c (LEGITIMATE_SMALL_DATA_OFFSET_P): Remove.
3601         (LEGITIMATE_SMALL_DATA_ADDRESS_P): Likewise.
3602         (get_symbol_alignment): New function.
3603         (legitimate_small_data_address_p): Likewise.
3604         (legitimate_scaled_address): Update, call
3605         legitimate_small_data_address_p.
3606         (output_sdata): New static variable.
3607         (arc_print_operand): Update how we handle small data operands.
3608         (arc_print_operand_address): Likewise.
3609         (arc_legitimate_address_p): Update, use
3610         legitimate_small_data_address_p.
3611         (arc_rewrite_small_data_p): Remove.
3612         (arc_rewrite_small_data_1): Likewise.
3613         (arc_rewrite_small_data): Likewise.
3614         (small_data_pattern): Likewise.
3615         (compact_sda_memory_operand): Update to use
3616         legitimate_small_data_address_p and get_symbol_alignment.
3617         (prepare_move_operands): Don't rewite sdata pattern.
3618         (prepare_extend_operands): Remove.
3619         * config/arc/arc.md (zero_extendqihi2): Don't rewrite sdata
3620         pattern.
3621         (zero_extendqisi2): Likewise.
3622         (zero_extendhisi2): Likewise.
3623         (extendqihi2): Likewise.
3624         (extendqisi2): Likewise.
3625         (extendhisi2): Likewise.
3626         (addsi3): Likewise.
3627         (subsi3): Likewise.
3628         (andsi3): Likewise.
3629         * config/arc/constraints.md (Usd): Change it to memory constraint.
3630
3631 2018-04-30  Claudiu Zissulescu  <claziss@synopsys.com>
3632
3633         * config/arc/arc.c (arc_split_move): Allow signed 6-bit constants
3634         as source of std instructions.
3635         * config/arc/arc.md (movsi_insn): Update pattern predicate to
3636         allow 6-bit constants as source for store instructions.
3637         (movdi_insn): Update instruction pattern to allow 6-bit constants
3638         as source for store instructions.
3639
3640 2018-04-30  Jonathan Wakely  <jwakely@redhat.com>
3641
3642         * doc/invoke.texi (-fdebug-types-section): Fix grammar.
3643
3644 2018-04-30  Nathan Sidwell  <nathan@acm.org>
3645             Sandra Loosemore <sandra@codesourcery.com>
3646
3647         * dumpfile.c (dump_open): Allow '-' for stdout.
3648         * doc/invoke.texi (Developer Options): Document dump filename
3649         determination early.  Document stdin/stdout selection.
3650
3651 2018-04-30 Andrew Sadek  <andrew.sadek.se@gmail.com>
3652
3653         Microblaze Target: PIC data text relative
3654
3655         * config/microblaze/microblaze.opt: add new option -mpic-data-text-rel.
3656         * config/microblaze/microblaze-protos.h (microblaze_constant_address_p):
3657         Add declaration.
3658         * gcc/config/microblaze/microblaze.h (microblaze_constant_address_p):
3659         CONSTANT_ADDRESS_P definition to microblaze_constant_address_p.
3660         * config/microblaze/microblaze.c (TARGET_PIC_DATA_TEXT_REL):
3661         New addressing mode for data-text relative position indepenedent code.
3662         (microblaze_classify_unspec): add 'UNSPEC_TEXT' case ->
3663         'ADDRESS_SYMBOLIC_TXT_REL'.
3664         (microblaze_classify_address): Add handling for UNSPEC + CONST_INT.
3665         (microblaze_legitimate_pic_operand): Exclude function calls from
3666         pic operands in case of TARGET_PIC_DATA_TEXT_REL option.
3667         (microblaze_legitimize_address): Generate 'UNSPEC_TEXT' for all possible
3668         addresses cases.
3669         (microblaze_address_insns): Add 'ADDRESS_SYMBOLIC_TXT_REL' case.
3670         (print_operand): Add 'ADDRESS_SYMBOLIC_TXT_REL' case.
3671         (print_operand_address): Add 'ADDRESS_SYMBOLIC_TXT_REL' case + handling
3672         for 'address + offset'.
3673         (microblaze_expand_prologue): Add new function prologue call for
3674         'r20' assignation.
3675         (microblaze_asm_generate_pic_addr_dif_vec): Override new target hook
3676         'TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC' to disable address diff vector
3677         table in case of TARGET_PIC_DATA_TEXT_REL.
3678         (expand_pic_symbol_ref): Add handling for 'UNSPEC_TEXT'.
3679         * gcc/config/microblaze/microblaze.md (TARGET_PIC_DATA_TEXT_REL):
3680         Add new macros 'UNSPEC_TEXT',
3681         'UNSPEC_SET_TEXT' + add rule for setting r20 in function prologue
3682         + exclude function calls from 'UNSPEC_PLT' in case of data text
3683         relative mode.
3684         * doc/tm.texi.in (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC): Add
3685         new target hook for generating address diff vector tables in case of
3686         flag_pic.
3687         * doc/tm.texi : Regenerate.
3688         * stmt.c (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC): Append new condition
3689         'targetm.asm_out.generate_pic_addr_diff_vec' to flag_pic in case
3690         of addr diff vector generation.
3691         * target.def (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC): Add
3692         target hook definition.
3693         * targhooks.h, gcc/targhooks.c (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC):
3694         Add default function for generate_pic_addr_diff_vec -> flag_pic.
3695         * doc/invoke.texi (Add new pic option): Add new microblaze pic
3696         option for data text relative.
3697
3698 2018-04-30  Richard Biener  <rguenther@suse.de>
3699
3700         * tree-chrec.h (evolution_function_is_constant_p): Remove
3701         redundant check.
3702         * tree-cfg.c (tree_node_can_be_shared): Re-order checks.
3703
3704 2018-04-30  Richard Biener  <rguenther@suse.de>
3705
3706         PR bootstrap/85571
3707         * dwarf2out.c (gen_producer_string): Ignore -fchecking[=].
3708
3709 2018-04-30  Richard Biener  <rguenther@suse.de>
3710
3711         PR tree-optimization/28364
3712         PR tree-optimization/85275
3713         * tree-ssa-loop-ch.c (ch_base::copy_headers): Stop after
3714         copying first exit test.
3715
3716 2018-04-28  Mark Wielaard  <mark@klomp.org>
3717
3718         * dwarf2out.c (dwarf2out_finish): Add .debug_addr table header for
3719         dwarf_version >= 5.
3720         (dwarf_AT): Handle DW_AT_addr_base.
3721         (add_top_level_skeleton_die_attrs): Use dwarf_AT for DW_AT_addr_base.
3722
3723 2018-04-28  Uros Bizjak  <ubizjak@gmail.com>
3724
3725         PR target/84431
3726         * config/i386/i386.md (*ashl<dwi>3_doubleword_mask): New pattern.
3727         (*ashl<dwi>3_doubleword_mask_1): Ditto.
3728         (*<shift_insn><dwi>3_doubleword_mask): Ditto.
3729         (*<shift_insn><dwi>3_doubleword_mask_1): Ditto.
3730
3731 2018-04-28  Richard Biener  <rguenther@suse.de>
3732
3733         * tree-cfg.c (verify_gimple_phi): Take a gphi * argument.
3734         (verify_gimple_in_cfg): Rename visited_stmts to visited_throwing_stmts
3735         to reflect use.  Only add interesting stmts.
3736
3737 2018-04-27  Martin Jambor  <mjambor@suse.cz>
3738
3739         PR ipa/85549
3740         * ipa-cp.c (find_aggregate_values_for_callers_subset): Make sure
3741         the jump function allows for passing through aggregate values.
3742
3743 2018-04-27  David Malcolm  <dmalcolm@redhat.com>
3744
3745         * input.h (in_system_header_at): Convert from macro to inline
3746         function.
3747         (from_macro_expansion_at): Likewise.
3748         (from_macro_definition_at): Likewise.
3749
3750 2018-04-27  Jeff Law  <law@redhat.com>
3751
3752         * config.gcc: Mark tile* targets as deprecated/obsolete.
3753
3754 2018-04-27  Richard Biener  <rguenther@suse.de>
3755
3756         * config/aarch64/aarch64.c: Simplify ap.__stack advance and
3757         fix for ILP32.
3758
3759 2018-04-27  Richard Biener  <rguenther@suse.de>
3760
3761         * tree-cfg.c (verify_expr): Make dead code hit gcc_unreachable.
3762
3763 2018-04-27  Uros Bizjak  <ubizjak@gmail.com>
3764
3765         * config/i386/i386.md (*movti_internal): Substitute Ye constraint
3766         with Yd constraint. Set "preferred_for_speed" attribute from
3767         TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC for alternatives
3768         with Yd constraint.
3769         (*movdi_internal): Ditto.
3770         (movti_interunit splitters): Remove
3771         TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC from insn condition.
3772         (movdi_interunit splitters): Ditto.
3773         * config/i386/constraints.md (Ye): Remove.
3774         (Yd): Do not depend on TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC.
3775
3776 2018-04-27  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
3777
3778         PR target/85512
3779         * config/aarch64/constraints.md (Usg): Limit to 31.
3780         (Usj): Limit to 63.
3781
3782 2018-04-27  Jakub Jelinek  <jakub@redhat.com>
3783
3784         PR tree-optimization/85529
3785         * tree-ssa-reassoc.c (optimize_range_tests_var_bound): Add FIRST_BB
3786         argument.  Don't call get_nonzero_bits if opcode is ERROR_MARK_NODE,
3787         rhs2 def stmt's bb is dominated by first_bb and it isn't an obvious
3788         zero extension or masking of the MSB bit.
3789         (optimize_range_tests): Add FIRST_BB argument, pass it through
3790         to optimize_range_tests_var_bound.
3791         (maybe_optimize_range_tests, reassociate_bb): Adjust
3792         optimize_range_tests callers.
3793
3794 2018-04-26  Richard Biener  <rguenther@suse.de>
3795             Jakub Jelinek  <jakub@redhat.com>
3796
3797         * cgraph.h (symbol_table): Just declare debug method here.
3798         * symtab.c (symbol_table::debug): Define.
3799
3800 2018-04-26  Eric Botcazou  <ebotcazou@adacore.com>
3801
3802         * loop-invariant.c (may_assign_reg_p): Return false for frame pointer.
3803
3804 2018-04-26  Uros Bizjak  <ubizjak@gmail.com>
3805
3806         * config/i386/i386.md ("isa" attribute): Add x64_sse2.
3807         ("enabled" attribute): Handle x64_sse2 "isa" attribute.
3808         (*movdi_internal): Substitute Yi and Yj constraint with x
3809         and Ym and Yn constraint with y constraint.  Update "isa"
3810         attribute and set "preferred_for_speed" attribute from
3811         TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC for updated alternatives.
3812         (*movsi_internal): Ditto.
3813         (*movdf_internal): Ditto.
3814         (*movsf_internal): Ditto.
3815         (*zero_extendsidi2): Ditto.
3816         * config/i386/sse.md (vec_set<mode>_0): Ditto.
3817         (sse2_loadld): Ditto.
3818         (*vec_extract<ssevecmodelower>_0): Ditto.
3819         (*vec_extractv4si_0_zext_sse4): Ditto.
3820         (vec_concatv2di): Ditto.
3821         (*vec_dup<mode>): Ditto.
3822         * config/i386/mmx.md (*mov<mode>_internal): Ditto.
3823         * config/i386/constraints.md (Yi): Remove.
3824         (Yj): Remove.
3825         (Ym): Remove.
3826         (Yn): Remove.
3827
3828 2018-04-26  Nathan Sidwell  <nathan@acm.org>
3829
3830         * dumpfile.c (dump_open): New.
3831         (dump_open_alternate_stream, dump_start, dump_begin): Call it.
3832         (dump_finish): Detect stdio/stderr by value not name.
3833
3834 2018-04-26  Jonathan Wakely  <jwakely@redhat.com>
3835
3836         * doc/invoke.texi (-Wreturn-type): Document default status for C++.
3837
3838 2018-04-26  Tom de Vries  <tom@codesourcery.com>
3839
3840         PR target/84952
3841         * config/nvptx/nvptx.c (verify_neutering_jumps)
3842         (verify_neutering_labels): New function
3843         (nvptx_single): Use verify_neutering_jumps and verify_neutering_labels.
3844
3845 2018-04-26  Tom de Vries  <tom@codesourcery.com>
3846
3847         PR target/84025
3848         * config/nvptx/nvptx.c (needs_neutering_p): New function.
3849         (nvptx_single): Use needs_neutering_p to skip over insns that do not
3850         need neutering.
3851
3852 2018-04-26  Richard Biener <rguenther@suse.de>
3853             Tom de Vries  <tom@codesourcery.com>
3854
3855         PR lto/85422
3856         * lto-streamer-out.c (output_function): Fixup loops if required to match
3857         discovery done in the reader.
3858
3859 2018-04-26  Richard Biener  <rguenther@suse.de>
3860
3861         PR tree-optimization/85116
3862         * tree-ssa-loop-ch.c (do_while_loop_p): A do-while loop should
3863         have a loop exit from the single latch predecessor.  Remove
3864         case of header with just condition.
3865         (ch_base::copy_headers): Exclude infinite loops from any
3866         processing.
3867         (pass_ch::execute): Record exits.
3868
3869 2018-04-26  Richard Biener  <rguenther@suse.de>
3870
3871         * tree-vect-data-refs.c (vect_get_data_access_cost): Get
3872         prologue cost vector and pass it to vect_get_load_cost.
3873         (vect_get_peeling_costs_all_drs): Likewise.
3874         (vect_peeling_hash_get_lowest_cost): Likewise.
3875         (vect_enhance_data_refs_alignment): Likewise.
3876
3877 2018-04-26  Richard Biener  <rguenther@suse.de>
3878
3879         PR middle-end/85450
3880         * tree-cfg.c (verify_gimple_assign_unary): Restore proper
3881         checking of integer<->pointer conversions.
3882         * omp-expand.c (expand_omp_for_static_nochunk): Avoid
3883         sign-/zero-extending pointer types.
3884         (expand_omp_for_static_chunk): Likewise.
3885
3886 2018-03-22  Hans-Peter Nilsson  <hp@axis.com>
3887             Jean Lee  <xiaoyur347@gmail.com>
3888
3889         * config/mips/mips.c (mips_asan_shadow_offset): New function.
3890         (TARGET_ASAN_SHADOW_OFFSET): Define.
3891         * config/mips/mips.h (FRAME_GROWS_DOWNWARD): Augment to also be
3892         true for -fsanitize=address.
3893
3894 2018-04-25  Mark Wielaard  <mark@klomp.org>
3895
3896         * dwarf2out.c (file_info_cmp): Sort longer dir prefixes before
3897         shorter ones.
3898
3899 2018-04-25  Jakub Jelinek  <jakub@redhat.com>
3900
3901         * config/i386/i386.md (*x86_mov<mode>cc_0_m1): Use type "alu1" rather
3902         than "alu", remove explicit "memory" and "imm_disp" attributes.
3903         (*x86_mov<mode>cc_0_m1_se, *x86_mov<mode>cc_0_m1_neg): Likewise.
3904
3905         PR middle-end/85414
3906         * simplify-rtx.c (simplify_unary_operation_1) <case SIGN_EXTEND,
3907         case ZERO_EXTEND>: Pass SUBREG_REG (op) rather than op to
3908         gen_lowpart_no_emit.
3909
3910 2018-04-25  Sebastian Peryt  <sebastian.peryt@intel.com>
3911
3912         PR target/85473
3913         * config/i386/i386.c (ix86_expand_builtin): Change memory
3914         operand to XI, extend p0 to Pmode.
3915         * config/i386/i386.md: Change unspec volatile and operand
3916         1 mode to XI, change operand 0 mode to P.
3917
3918 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
3919
3920         * config/nds32/nds32-predicates.c (nds32_can_use_bclr_p): Mask with
3921         GET_MODE_MASK before any checking.
3922         (nds32_can_use_bset_p): Likewise.
3923         (nds32_can_use_btgl_p): Likewise.
3924
3925 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
3926
3927         * config/nds32/nds32-doubleword.md: New define_split pattern for
3928         illegal register number.
3929
3930 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
3931
3932         * config/nds32/nds32.c (nds32_print_operand): Set op_value ealier.
3933
3934 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
3935
3936         * config/nds32/nds32.h (ASM_APP_ON): Add missing newline character.
3937
3938 2018-04-25  Richard Biener  <rguenther@suse.de>
3939
3940         * lto-streamer.h (LTO_major_version): Bump to 8.
3941
3942 2018-04-25  Jakub Jelinek  <jakub@redhat.com>
3943
3944         * BASE-VER: Set to 9.0.0.
3945
3946 2018-04-24  Segher Boessenkool  <segher@kernel.crashing.org>
3947
3948         * config/rs6000/rs6000.c (init_float128_ieee): Fix spelling mistakes
3949         in __abskf2 and __powikf2.
3950
3951 2018-04-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
3952
3953         PR target/85512
3954         * config/aarch64/constraints.md (Usg, Usj): New constraints.
3955         * config/aarch64/iterators.md (cmode_simd): New mode attribute.
3956         * config/aarch64/aarch64.md (*aarch64_ashr_sisd_or_int_<mode>3):
3957         Use the above on operand 2.  Reindent.
3958         (*aarch64_lshr_sisd_or_int_<mode>3): Likewise.
3959
3960 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
3961
3962         PR target/85485
3963         * common/config/i386/i386-common.c (ix86_handle_option): Don't
3964         handle OPT_mcet.
3965         * config/i386/i386.opt (mcet): Removed.
3966         * doc/install.texi: Remove -mcet documentation.
3967         * doc/invoke.texi: Likewise.
3968
3969 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
3970
3971         PR target/85485
3972         * doc/install.texi: Remove -mcet from bootstrap-cet.
3973
3974 2018-04-24  Jakub Jelinek  <jakub@redhat.com>
3975
3976         PR target/85511
3977         * config/i386/i386.c (ix86_init_mmx_sse_builtins): Don't define
3978         __builtin_ia32_readeflags_u32 and __builtin_ia32_writeeflags_u32
3979         if TARGET_64BIT.
3980
3981         PR target/85503
3982         * config/rs6000/rs6000-p8swap.c (const_load_sequence_p): Punt if
3983         const_vector is not CONST_VECTOR or SYMBOL_REF for a constant pool
3984         containing a CONST_VECTOR.
3985
3986 2018-04-24  Cesar Philippidis  <cesar@codesourcery.com>
3987
3988         * doc/install.texi: Update newlib dependency for nvptx.
3989
3990 2018-04-24  Jakub Jelinek  <jakub@redhat.com>
3991
3992         PR target/85508
3993         * config/i386/i386.c (ix86_expand_vector_init_one_var): Use UINTVAL
3994         instead of INTVAL when shifting x left.
3995
3996 2018-04-24  Andreas Krebbel  <krebbel@linux.ibm.com>
3997
3998         PR tree-optimization/85478
3999         * tree-vect-loop.c (vect_analyze_loop_2): Do not call
4000         vect_grouped_store_supported for single element vectors.
4001
4002 2018-04-24  Richard Biener  <rguenther@suse.de>
4003
4004         PR target/85491
4005         * config/i386/i386.c (ix86_add_stmt_cost): Restrict strided
4006         load cost increase to the case of non-constant step.
4007
4008 2018-04-24  Jakub Jelinek  <jakub@redhat.com>
4009
4010         PR target/84828
4011         * reg-stack.c (move_for_stack_reg): Don't fail assertion about dead
4012         destination if any_malformed_asm.
4013
4014 2018-04-23  Eric Botcazou  <ebotcazou@adacore.com>
4015
4016         PR middle-end/85496
4017         * expr.c (store_field): In the bitfield case, if the value comes from
4018         a function call and is returned in registers by means of a PARALLEL,
4019         do not change the mode of the temporary unless BLKmode and VOIDmode.
4020
4021 2018-04-23  Andrey Belevantsev  <abel@ispras.ru>
4022
4023         PR rtl-optimization/85423
4024         * sel-sched-ir.c (has_dependence_note_mem_dep): Only discard
4025         dependencies to debug insns when the previous insn is non-debug.
4026
4027 2018-04-23  Claudiu Zissulescu  <claziss@synopsys.com>
4028
4029         * config/arc/arc.md ("vunspec"): Delete it, unify all the unspec
4030         enums into a single definition.
4031         (fls): Fix predicates and printing.
4032         (seti): Likewise.
4033
4034 2018-04-23  Claudiu Zissulescu  <claziss@synopsys.com>
4035
4036         * config/arc/arc-protos.h (check_if_valid_sleep_operand): Remove.
4037         * config/arc/arc.c (arc_expand_builtin): Sleep accepts registers
4038         and short u6 immediate.
4039         (check_if_valid_sleep_operand): Remove.
4040         * config/arc/arc.md (Sleep): Accepts registers and u6 immediates.
4041
4042 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
4043
4044         * config/nds32/nds32.c (nds32_compute_stack_frame): Consider
4045         flag_always_save_lp condition.
4046         * config/nds32/nds32.opt (malways-save-lp): New option.
4047
4048 2018-04-22  Shiva Chen  <shiva0217@gmail.com>
4049
4050         * config/nds32/nds32-protos.h (nds32_use_load_post_increment): Declare.
4051         * config/nds32/nds32.c (nds32_use_load_post_increment): New.
4052         * config/nds32/nds32.h
4053         (USE_LOAD_POST_INCREMENT, USE_LOAD_POST_DECREMENT): Define.
4054         (USE_STORE_POST_INCREMENT, USE_STORE_POST_DECREMENT): Define.
4055
4056 2018-04-22  Shiva Chen  <shiva0217@gmail.com>
4057
4058         * config/nds32/nds32-protos.h (nds32_ls_333_p): Remove.
4059         * config/nds32/nds32.c (nds32_ls_333_p): Remove.
4060
4061 2018-04-22  Shiva Chen  <shiva0217@gmail.com>
4062             Chung-Ju Wu  <jasonwucj@gmail.com>
4063
4064         * config/nds32/nds32-protos.h (nds32_case_vector_shorten_mode):
4065         Declare.
4066         * config/nds32/nds32.c (nds32_case_vector_shorten_mode): New function.
4067         * config/nds32/nds32.h (CASE_VECTOR_SHORTEN_MODE): Modify.
4068
4069 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
4070
4071         * config/nds32/nds32.c (nds32_compute_stack_frame): Fix wrong value.
4072
4073 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
4074
4075         * config/nds32/nds32-protos.h (nds32_data_alignment,
4076         nds32_local_alignment): Declare.
4077         * config/nds32/nds32.c (nds32_data_alignment, nds32_constant_alignment,
4078         nds32_local_alignment): New functions.
4079         (TARGET_CONSTANT_ALIGNMENT): Define.
4080         * config/nds32/nds32.h (DATA_ALIGNMENT, LOCAL_ALIGNMENT): Define.
4081
4082 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
4083
4084         * config/nds32/nds32.c
4085         (TARGET_HARD_REGNO_MODE_OK): Move to the bottom of file.
4086         (TARGET_MODES_TIEABLE_P): Likewise.
4087
4088 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
4089
4090         * config/nds32/nds32.c (nds32_asm_file_start): Display optimization
4091         level Ofast and Og.
4092
4093 2018-04-22  Monk Chiang  <sh.chiang04@gmail.com>
4094             Chung-Ju Wu  <jasonwucj@gmail.com>
4095
4096         * config/nds32/constants.md (unspec_volatile_element): Add enum values
4097         for unaligned access.
4098         * config/nds32/nds32-intrinsic.c: Implementation of expanding
4099         unaligned access.
4100         * config/nds32/nds32-intrinsic.md: Likewise.
4101         * config/nds32/nds32_intrinsic.h: Likewise.
4102         * config/nds32/nds32.h (nds32_builtins): Likewise.
4103         * config/nds32/nds32.opt (munaligned-access): New option.
4104         * config/nds32/nds32.c (nds32_asm_file_start): Display
4105         flag_unaligned_access status.
4106
4107 2018-04-20  Kito Cheng  <kito.cheng@gmail.com>
4108
4109         * config/riscv/elf.h (LINK_SPEC): Pass --no-relax if
4110         -mno-relax is present.
4111         * config/riscv/linux.h (LINK_SPEC): Ditto.
4112
4113 2018-04-20  Martin Sebor  <msebor@redhat.com>
4114
4115         PR c/85365
4116         * gimple-fold.c (gimple_fold_builtin_strcpy): Suppress -Wrestrict
4117         for null pointers.
4118         (gimple_fold_builtin_stxcpy_chk): Same.
4119         * gimple-ssa-warn-restrict.c (check_bounds_or_overlap): Same.
4120
4121 2018-04-20  Michael Meissner  <meissner@linux.ibm.com>
4122
4123         PR target/85456
4124         * config/rs6000/rs6000.c (init_float128_ieee): Add support to call
4125         __powikf2 when long double is IEEE 128-bit.
4126
4127 2018-04-20  Kito Cheng  <kito.cheng@gmail.com>
4128
4129         * config/riscv/riscv.c (riscv_first_stack_step): Round up min
4130         step to make sure stack always aligned.
4131
4132 2018-04-20  Carl Love  <cel@us.ibm.com>
4133
4134         PR target/83402
4135         * config/rs6000/rs6000-c.c (rs6000_gimple_fold_builtin): Add
4136         size check for arg0.
4137
4138 2018-04-20  Nathan Sidwell  <nathan@codesourcery.com>
4139             Tom de Vries  <tom@codesourcery.com>
4140
4141         PR target/85445
4142         * config/nvptx/nvptx.c (nvptx_emit_forking, nvptx_emit_joining):
4143         Emit insns for calls too.
4144         (nvptx_find_par): Always look for worker-level predecessor insn.
4145         (nvptx_propagate): Add is_call parm, return bool.  Copy frame for
4146         calls.
4147         (nvptx_vpropagate, nvptx_wpropagate): Adjust.
4148         (nvptx_process_pars): Propagate frames for calls.
4149
4150 2018-04-20  H.J. Lu  <hongjiu.lu@intel.com>
4151
4152         PR target/85469
4153         * common/config/i386/i386-common.c (OPTION_MASK_ISA_IBT_SET):
4154         Removed.
4155         (OPTION_MASK_ISA_IBT_UNSET): Likewise.
4156         (ix86_handle_option): Don't handle OPT_mibt.
4157         * config/i386/cet.h: Check __CET__ instead of __IBT__ and
4158         __SHSTK__.
4159         * config/i386/driver-i386.c (host_detect_local_cpu): Remove
4160         has_ibt and ibt.
4161         * config/i386/i386-c.c (ix86_target_macros_internal): Don't
4162         check OPTION_MASK_ISA_IBT nor flag_cf_protection.
4163         (ix86_target_macros): Define __CET__ with flag_cf_protection
4164         for -fcf-protection.
4165         * config/i386/i386.c (isa2_opts): Remove -mibt.
4166         * config/i386/i386.h (TARGET_IBT): Removed.
4167         (TARGET_IBT_P): Likewise.
4168         (ix86_valid_target_attribute_inner_p): Don't check OPT_mibt.
4169         * config/i386/i386.md (nop_endbr): Don't check TARGET_IBT.
4170         * config/i386/i386.opt (mcet): Update help message.
4171         (mshstk): Likewise.
4172         (mibt): Removed.
4173         * doc/invoke.texi: Remove -mibt.  Document __CET__.  Document
4174         -mcet as an alias for -mshstk.
4175
4176 2018-04-20  Richard Biener <rguenther@suse.de>
4177
4178         PR middle-end/85475
4179         * match.pd ((X * CST) * Y -> (X * Y) * CST): Avoid exponential
4180         complexity by forcing a single use of the multiply operand.
4181
4182 2018-04-20  Martin Jambor  <mjambor@suse.cz>
4183
4184         ipa/85449
4185         * ipa-cp.c (cgraph_edge_brings_value_p): Move check for self-feeding
4186         recursion dependency to only apply to non-clones.
4187
4188 2018-04-20  Martin Jambor  <mjambor@suse.cz>
4189
4190         ipa/85447
4191         * ipa-cp.c (create_specialized_node): Check that clones of
4192         self-recursive edges exist during IPA-CP.
4193
4194 2018-04-19  Toon Moene  <toon@moene.org>
4195
4196         * doc/invoke.texi: Add -floop-unroll-and-jam to options enabled
4197         by -O3.
4198
4199 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
4200
4201         PR tree-optimization/85467
4202         * fold-const.c (fold_ternary_loc) <case BIT_FIELD_REF>: Use
4203         VECTOR_TYPE_P macro.  If type is vector type, VIEW_CONVERT_EXPR the
4204         VECTOR_CST element to type.
4205
4206 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
4207
4208         PR target/85397
4209         * config/i386/i386.h (STACK_SAVEAREA_MODE): New.
4210         * config/i386/i386.md (builtin_setjmp_setup): Removed.
4211         (builtin_longjmp): Likewise.
4212         (save_stack_nonlocal): New pattern.
4213         (restore_stack_nonlocal): Likewise.
4214
4215 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
4216
4217         PR target/85404
4218         * config/i386/cet.c (file_end_indicate_exec_stack_and_cet):
4219         Replace ASM_OUTPUT_LABEL with fprintf.
4220
4221 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
4222
4223         PR target/85417
4224         * config/i386/cet.c (file_end_indicate_exec_stack_and_cet):
4225         Check flag_cf_protection instead of TARGET_IBT and TARGET_SHSTK.
4226         * config/i386/i386-c.c (ix86_target_macros_internal): Also
4227         define __IBT__ and __SHSTK__ for -fcf-protection.
4228         * config/i386/i386.c (pass_insert_endbranch::gate): Don't check
4229         TARGET_IBT.
4230         (ix86_trampoline_init): Likewise.
4231         (x86_output_mi_thunk): Likewise.
4232         (ix86_notrack_prefixed_insn_p): Likewise.
4233         (ix86_option_override_internal): Don't disallow -fcf-protection.
4234         * config/i386/i386.md (rdssp<mode>): Also enable for
4235         -fcf-protection.
4236         (incssp<mode>): Likewise.
4237         (nop_endbr): Likewise.
4238         * config/i386/i386.opt (mcet): Change help message to built-in
4239         functions only.
4240         (mibt): Likewise.
4241         (mshstk): Likewise.
4242         * doc/invoke.texi: Remove -mcet, -mibt and -mshstk condition
4243         on -fcf-protection.  Change -mcet, -mibt and -mshstk to only
4244         enable CET built-in functions.
4245
4246 2018-04-19  Sebastian Peryt  <sebastian.peryt@intel.com>
4247
4248         * common/config/i386/i386-common.c
4249         (OPTION_MASK_ISA_MOVDIRI_SET, OPTION_MASK_ISA_MOVDIR64B_SET,
4250         OPTION_MASK_ISA_MOVDIRI_UNSET,
4251         OPTION_MASK_ISA_MOVDIR64B_UNSET): New defines.
4252         (ix86_handle_option): Handle -mmovdiri and -mmovdir64b.
4253         * config.gcc (movdirintrin.h): New header.
4254         * config/i386/cpuid.h (bit_MOVDIRI,
4255         bit_MOVDIR64B): New bits.
4256         * config/i386/driver-i386.c (host_detect_local_cpu): Detect -mmovdiri
4257         and -mmvodir64b.
4258         * config/i386/i386-builtin-types.def ((VOID, PUNSIGNED, UNSIGNED),
4259         (VOID, PVOID, PCVOID)): New function types.
4260         * config/i386/i386-builtin.def (__builtin_ia32_directstoreu_u32,
4261         __builtin_ia32_directstoreu_u64,
4262         __builtin_ia32_movdir64b): New builtins.
4263         * config/i386/i386-c.c (__MOVDIRI__, __MOVDIR64B__): New.
4264         * config/i386/i386.c (ix86_target_string): Added -mmovdir64b
4265         and -mmovdiri.
4266         (ix86_valid_target_attribute_inner_p): Ditto.
4267         (ix86_expand_special_args_builtin): Added VOID_FTYPE_PUNSIGNED_UNSIGNED
4268         and VOID_FTYPE_PUNSIGNED_UNSIGNED.
4269         (ix86_expand_builtin): Expand IX86_BUILTIN_MOVDIR64B.
4270         * config/i386/i386.h (TARGET_MOVDIRI, TARGET_MOVDIRI_P,
4271         TARGET_MOVDIR64B, TARGET_MOVDIR64B_P): New.
4272         * config/i386/i386.md (UNSPECV_MOVDIRI, UNSPECV_MOVDIR64B): New.
4273         (movdiri<mode>, movdir64b_<mode>): New.
4274         * config/i386/i386.opt: Add -mmovdiri and -mmovdir64b.
4275         * config/i386/immintrin.h: Include movdirintrin.h.
4276         * config/i386/movdirintrin.h: New file.
4277         * doc/invoke.texi: Added -mmovdiri and -mmovdir64b.
4278
4279 2018-04-19  Richard Biener  <rguenther@suse.de>
4280
4281         PR middle-end/85455
4282         * cfg.c (clear_bb_flags): When loop state says we have
4283         marked irreducible regions also preserve BB_IRREDUCIBLE_LOOP.
4284
4285 2018-04-19  Richard Biener  <rguenther@suse.de>
4286
4287         PR tree-optimization/84737
4288         * tree-vect-data-refs.c (vect_copy_ref_info): New function
4289         copying restrict info.
4290         (vect_setup_realignment): Use it.
4291         * tree-vectorizer.h (vect_copy_ref_info): Declare.
4292         * tree-vect-stmts.c (vectorizable_store): Copy ref info from
4293         the first DR to all generated stores.
4294         (vectorizable_load): Likewise for loads.
4295
4296 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
4297
4298         PR tree-optimization/85446
4299         * match.pd ((intptr_t) x eq/ne CST to x eq/ne (typeof x) cst): Require
4300         the integral and pointer types to have the same precision.
4301
4302         * doc/install.texi: Document --disable-cet being the default and
4303         --enable-cet=auto.
4304
4305 2018-04-18  Martin Liska  <mliska@suse.cz>
4306
4307         * ipa-devirt.c (odr_subtypes_equivalent_p): Fix GNU coding
4308         style.
4309
4310 2018-04-18  Martin Liska  <mliska@suse.cz>
4311
4312         Revert
4313         2018-03-02  Eric Botcazou  <ebotcazou@adacore.com>
4314
4315         PR ipa/83983
4316         * ipa-devirt.c (odr_subtypes_equivalent_p): Get the ODR type of both
4317         arguments if they are comparable.
4318
4319 2018-04-18  Martin Liska  <mliska@suse.cz>
4320
4321         Revert
4322         2018-03-13  Eric Botcazou  <ebotcazou@adacore.com>
4323
4324         PR lto/84805
4325         * ipa-devirt.c (odr_subtypes_equivalent_p): Do not get the ODR type of
4326         incomplete types.
4327
4328 2018-04-18  H.J. Lu  <hongjiu.lu@intel.com>
4329
4330         PR target/85388
4331         * config/i386/i386.c (ix86_expand_split_stack_prologue): Insert
4332         ENDBR after calling __morestack.
4333
4334 2018-04-18  David Malcolm  <dmalcolm@redhat.com>
4335
4336         PR jit/85384
4337         * configure.ac (gcc-driver-name.h): Honor --with-gcc-major-version
4338         by using gcc_base_ver to generate a gcc_driver_version, and use
4339         it when generating GCC_DRIVER_NAME.
4340         * configure: Regenerate.
4341
4342 2018-04-18  Jakub Jelinek  <jakub@redhat.com>
4343
4344         PR target/81084
4345         * config.gcc: Obsolete powerpc*-*-*spe*.
4346
4347 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
4348
4349         PR debug/84637
4350         * dbxout.c (dbxout_int): Perform negation in unsigned int type.
4351         (stabstr_D): Change type of unum from unsigned int to
4352         unsigned HOST_WIDE_INT.  Perform negation in unsigned HOST_WIDE_INT
4353         type.
4354
4355 2018-04-17  Jim Wilson  <jimw@sifive.com>
4356
4357         PR 84856
4358         * config/riscv/riscv.c (riscv_compute_frame_info): Add calls to
4359         RISCV_STACK_ALIGN when using outgoing_args_size and pretend_args_size.
4360         Set arg_pointer_offset after using pretend_args_size.
4361
4362 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
4363
4364         PR rtl-optimization/85431
4365         * dse.c (record_store): Ignore zero width stores.
4366
4367         PR sanitizer/85230
4368         * asan.c (handle_builtin_stack_restore): Adjust comment.  Emit
4369         __asan_allocas_unpoison call and last_alloca_addr = new_sp before
4370         __builtin_stack_restore rather than after it.
4371         * builtins.c (expand_asan_emit_allocas_unpoison): Pass
4372         arg1 + (virtual_dynamic_stack_rtx - stack_pointer_rtx) as second
4373         argument instead of virtual_dynamic_stack_rtx.
4374
4375 2018-04-17  Kelvin Nilsen  <kelvin@gcc.gnu.org>
4376
4377         * config/rs6000/rs6000-protos.h (rs6000_builtin_is_supported_p):
4378         New prototype.
4379         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
4380         Add note to error message to explain internal mapping of overloaded
4381         built-in function name to non-overloaded built-in function name.
4382         * config/rs6000/rs6000.c (rs6000_builtin_is_supported_p): New
4383         function.
4384
4385 2018-04-17  Michael Meissner  <meissner@linux.vnet.ibm.com>
4386
4387         PR target/85424
4388         * config/rs6000/rs6000.md (pack<mode>): Do not try handle a pack
4389         where the inputs overlap with the output.
4390
4391 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
4392
4393         * config/i386/sse.md (vec_extract_lo_<mode><mask_name>): Add
4394         (=v, v) alternative and explicit "memory" attribute.
4395         (vec_extract_lo_<mode><mask_name>): Likewise.  Also add
4396         "type", "prefix", "prefix_extra", "length_immediate" and "mode"
4397         attributes.
4398         (vec_extract_lo_<mode><mask_name>): Add (=v, v) alternative and use
4399         "sselog1" type instead of "sselog".
4400         (vec_extract_hi_<mode><mask_name>): Use "sselog1" type instead of
4401         "sselog".  Remove explicit "memory" attribute.
4402         (vec_extract_lo_v32hi): Add (=v, v) alternative and explicit "memory",
4403         "type", "prefix", "prefix_extra", "length_immediate" and "mode"
4404         attributes.
4405         (vec_extract_hi_v32hi): Merge all alternatives into one, use
4406         "sselog1" type instead of "sselog".  Remove explicit "memory"
4407         attribute.
4408         (vec_extract_hi_v16hi): Merge each pair of alternatives into one,
4409         use "sselog1" type instead of "sselog".  Remove explicit "memory"
4410         attribute.
4411         (vec_extract_lo_v64qi): Add (=v, v) alternative and explicit "memory",
4412         "type", "prefix", "prefix_extra", "length_immediate" and "mode"
4413         attributes.
4414         (vec_extract_hi_v64qi): Merge all alternatives into one, use
4415         "sselog1" type instead of "sselog".  Remove explicit "memory"
4416         attribute.
4417         (vec_extract_hi_v32qi): Merge each pair of alternatives into one,
4418         use "sselog1" type instead of "sselog".  Remove explicit "memory"
4419         attribute.
4420
4421         PR target/85430
4422         * config/i386/i386.md (*ashlqi3_1_slp): Use alu1 type instead of alu.
4423
4424         PR middle-end/85414
4425         * rtlhooks.c (gen_lowpart_if_possible): Don't call gen_lowpart_SUBREG
4426         on a SUBREG.
4427
4428 2018-04-17  Martin Jambor  <mjambor@suse.cz>
4429
4430         PR ipa/85421
4431         * ipa-cp.c (create_specialized_node): Call
4432         expand_all_artificial_thunks if necessary.
4433
4434 2018-04-17  Martin Liska  <mliska@suse.cz>
4435
4436         PR lto/85405
4437         * ipa-devirt.c (odr_types_equivalent_p): Remove trailing
4438         in message, remote space in between '_G' and '('.
4439
4440 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
4441
4442         PR target/85281
4443         * config/i386/sse.md (reduces<mode><mask_scalar_name>,
4444         avx512f_vmcmp<mode>3<round_saeonly_name>,
4445         avx512f_vmcmp<mode>3_mask<round_saeonly_name>,
4446         avx512f_sgetexp<mode><mask_scalar_name><round_saeonly_scalar_name>,
4447         avx512f_rndscale<mode><round_saeonly_name>,
4448         avx512dq_ranges<mode><mask_scalar_name><round_saeonly_scalar_name>,
4449         avx512f_vgetmant<mode><mask_scalar_name><round_saeonly_scalar_name>):
4450         Use %<iptr>2 instead of %2 for -masm=intel.
4451         (avx512f_vcvtss2usi<round_name>, avx512f_vcvtss2usiq<round_name>,
4452         avx512f_vcvttss2usi<round_saeonly_name>,
4453         avx512f_vcvttss2usiq<round_saeonly_name>): Use %k1 instead of %1 for
4454         -masm=intel.
4455         (avx512f_vcvtsd2usi<round_name>, avx512f_vcvtsd2usiq<round_name>,
4456         avx512f_vcvttsd2usi<round_saeonly_name>,
4457         avx512f_vcvttsd2usiq<round_saeonly_name>, ufloatv2siv2df2<mask_name>):
4458         Use %q1 instead of %1 for -masm=intel.
4459         (avx512f_sfixupimm<mode><sd_maskz_name><round_saeonly_name>,
4460         avx512f_sfixupimm<mode>_mask<round_saeonly_name>): Use %<iptr>3 instead
4461         of %3 for -masm=intel.
4462         (sse2_shufpd_v2df_mask): Fix a typo, change %{6%} to %{%6%} for
4463         -masm=intel.
4464         (*avx512vl_<code>v2div2qi2_store): Use %w0 instead of %0 for
4465         -masm=intel.
4466         (*avx512vl_<code><mode>v4qi2_store): Use %k0 instead of %0 for
4467         -masm=intel.
4468         (avx512vl_<code><mode>v4qi2_mask_store): Use a single pattern with
4469         %k0 and %1 for -masm=intel rather than two patterns, one with %0 and
4470         %g1.
4471         (*avx512vl_<code><mode>v8qi2_store): Use %q0 instead of %0 for
4472         -masm=intel.
4473         (avx512vl_<code><mode>v8qi2_mask_store): Use a single pattern with
4474         %q0 and %1 for -masm=intel rather than two patterns, one with %0 and
4475         %g1 and one with %0 and %1.
4476         (avx512er_vmrcp28<mode><round_saeonly_name>,
4477         avx512er_vmrsqrt28<mode><round_saeonly_name>): Use %<iptr>1 instead of
4478         %1 for -masm=intel.
4479         (avx5124fmaddps_4fmaddps_mask, avx5124fmaddps_4fmaddss_mask,
4480         avx5124fmaddps_4fnmaddps_mask, avx5124fmaddps_4fnmaddss_mask,
4481         avx5124vnniw_vp4dpwssd_mask, avx5124vnniw_vp4dpwssds_mask): Swap order
4482         of %0 and %{%4%} for -masm=intel.
4483         (avx5124fmaddps_4fmaddps_maskz, avx5124fmaddps_4fmaddss_maskz,
4484         avx5124fmaddps_4fnmaddps_maskz, avx5124fmaddps_4fnmaddss_maskz,
4485         avx5124vnniw_vp4dpwssd_maskz, avx5124vnniw_vp4dpwssds_maskz): Swap
4486         order of %0 and %{%5%}%{z%} for -masm=intel.
4487
4488 2018-04-17  Jan Hubicka  <jh@suse.cz>
4489
4490         PR lto/85405
4491         * ipa-devirt.c (odr_types_equivalent_p): Handle bit fields.
4492
4493 2018-04-17  Martin Liska  <mliska@suse.cz>
4494
4495         PR ipa/85329
4496         * multiple_target.c (create_dispatcher_calls): Set apostrophes
4497         for target_clone error message.  Make default implementation
4498         clone to be a local declaration.
4499         (separate_attrs): Add new argument and check for an empty
4500         string.
4501         (expand_target_clones): Handle it.
4502         (ipa_target_clone): Make redirection just for target_clones
4503         functions.
4504
4505 2018-04-16  Cesar Philippidis  <cesar@codesourcery.com>
4506             Tom de Vries  <tom@codesourcery.com>
4507
4508         PR middle-end/84955
4509         * omp-expand.c (expand_oacc_for): Add dummy false branch for
4510         tiled basic blocks without omp continue statements.
4511
4512 2018-04-16  Aaron Sawdey  <acsawdey@linux.ibm.com>
4513
4514         PR target/83660
4515         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Mark
4516         vec_extract expression as having side effects to make sure it gets
4517         a cleanup point.
4518
4519 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
4520
4521         PR target/85403
4522         * config/i386/i386.c (get_builtin_code_for_version): Check
4523         error_mark_node.
4524
4525 2018-04-16  Olga Makhotina  <olga.makhotina@intel.com>
4526
4527         PR target/84331
4528         * gcc/config.gcc: Support "skylake".
4529         * gcc/config/i386/i386-c.c (ix86_target_macros_internal): Handle
4530         PROCESSOR_SKYLAKE.
4531         * gcc/config/i386/i386.c (m_SKYLAKE): Define.
4532         (processor_target_table): Add "skylake".
4533         (ix86_option_override_internal): Add "skylake".
4534         (get_builtin_code_for_version): Handle PROCESSOR_SKYLAKE,
4535         PROCESSOR_CANNONLAKE.
4536         (get_builtin_code_for_version): Fix priority for
4537         PROCESSOR_ICELAKE_CLIENT, PROCESSOR_ICELAKE_SERVER,
4538         PROCESSOR_SKYLAKE-AVX512.
4539         * gcc/config/i386/i386.h (processor_costs): Define TARGET_SKYLAKE.
4540         (processor_type): Add PROCESSOR_SKYLAKE.
4541
4542 2018-04-16  Paolo Carlini  <paolo.carlini@oracle.com>
4543             Jason Merrill  <jason@redhat.com>
4544
4545         PR c++/85112
4546         * convert.c (convert_to_integer_1): Use direct recursion for
4547         enumeral types and types with a precision less than the number
4548         of bits in their mode.
4549
4550 2018-04-16  Julia Koval  <julia.koval@intel.com>
4551
4552         PR target/84413
4553         * config/i386/x86-tune.def (X86_TUNE_SSE_UNALIGNED_LOAD_OPTIMAL,
4554         X86_TUNE_SSE_UNALIGNED_STORE_OPTIMAL): Add m_SKYLAKE_AVX512
4555
4556 2018-04-14  Segher Boessenkool  <segher@kernel.crashing.org>
4557
4558         PR target/85293
4559         * config/rs6000/rs6000.opt (mdirect-move): Make deprecated.
4560         * doc/invoke.texi (RS/6000 and PowerPC Options): Remove -mdirect-move
4561         and -mno-direct-move.
4562
4563 2018-04-13  Paul A. Clarke  <pc@us.ibm.com>
4564
4565         PR target/83402
4566         * config/rs6000/emmintrin.h (_mm_slli_epi{16,32,64}):
4567         Ensure that vec_splat_s32 is only called with 0 <= shift < 16.
4568         Ensure negative shifts result in {0}.
4569
4570 2018-04-13  Vladimir Makarov  <vmakarov@redhat.com>
4571
4572         PR rtl-optimization/79916
4573         * config/rs6000/rs6000.c (rs6000_emit_move): Use assigned hard
4574         regs (if any) to define how to gnerate SD moves when LRA is in
4575         progress.
4576
4577 2018-04-13  Jakub Jelinek  <jakub@redhat.com>
4578
4579         PR rtl-optimization/85393
4580         * except.h (expand_dw2_landing_pad_for_region): Remove declaration.
4581         * except.c (expand_dw2_landing_pad_for_region): Make static.
4582         * bb-reorder.c (fix_up_crossing_landing_pad): In new_bb emit just
4583         a label and unconditional jump to old_bb, rather than
4584         expand_dw2_landing_pad_for_region insn(s) and jump to single_succ
4585         basic block.
4586
4587         PR rtl-optimization/85376
4588         * simplify-rtx.c (simplify_const_unary_operation): For CLZ and CTZ and
4589         zero op0, if C?Z_DEFINED_VALUE_AT_ZERO is false, return NULL_RTX
4590         instead of a specific value.
4591
4592 2018-04-13  Jan Hubicka  <hubicka@ucw.cz>
4593             Bin Cheng  <bin.cheng@arm.com>
4594
4595         PR tree-optimization/82965
4596         PR tree-optimization/83991
4597         * cfgloopanal.c (expected_loop_iterations_unbounded): Add
4598         by_profile_only parameter.
4599         * cfgloopmanip.c (scale_loop_profile): Further scale loop's profile
4600         information if the loop was predicted to iterate too many times.
4601         * cfgloop.h (expected_loop_iterations_unbounded): Update prototype
4602
4603 2018-04-13  Jan Hubicka  <hubicka@ucw.cz>
4604
4605         PR lto/71991
4606         * config/i386/i386.c (ix86_can_inline_p): Allow safe transitions for
4607         always inline.
4608
4609 2018-04-13  Martin Liska  <mliska@suse.cz>
4610             Jakub Jelinek  <jakub@redhat.com>
4611
4612         PR middle-end/81657
4613         * expr.h (enum block_op_methods): Add BLOCK_OP_NO_LIBCALL_RET.
4614         * expr.c (emit_block_move_hints): Handle BLOCK_OP_NO_LIBCALL_RET.
4615         * builtins.c (expand_builtin_memory_copy_args): Use
4616         BLOCK_OP_NO_LIBCALL_RET method for mempcpy with non-ignored target,
4617         handle dest_addr == pc_rtx.
4618
4619 2018-04-12  Segher Boessenkool  <segher@kernel.crashing.org>
4620
4621         PR target/85291
4622         * config/rs6000/rs6000.md (fix_trunc<mode>si2): Use legacy code if
4623         asked to not generate direct moves.
4624         (fix_trunc<mode>si2_stfiwx): Similar.
4625         (fix_trunc<mode>si2_internal): Similar.
4626
4627 2018-04-12  Jakub Jelinek  <jakub@redhat.com>
4628
4629         PR debug/83157
4630         * var-tracking.c (add_stores): Handle STRICT_LOW_PART SET_DEST.
4631         * cselib.c (cselib_record_sets): For STRICT_LOW_PART dest,
4632         lookup if dest in some wider mode is known to be const0_rtx and
4633         if so, record permanent equivalence for it to be ZERO_EXTEND of
4634         the narrower mode destination.
4635
4636 2018-04-12  Cesar Philippidis  <cesar@codesourcery.com>
4637
4638         * lto-streamer-out.c (output_function): Revert 259346.
4639         * omp-expand.c (expand_oacc_for): Likewise.
4640
4641 2018-04-12  Alexander Monakov  <amonakov@ispras.ru>
4642
4643         PR rtl-optimization/85354
4644         * sel-sched-ir.c (sel_init_pipelining): Move cfg_cleanup call...
4645         * sel-sched.c (sel_global_init): ... here.
4646
4647 2018-04-12  Eric Botcazou  <ebotcazou@adacore.com>
4648
4649         PR target/85238
4650         * lto-wrapper.c (debug_objcopy): Open the files in binary mode.
4651         * dwarf2out.c (dwarf2out_early_finish): Do not generate assembly in LTO
4652         mode for PE-COFF targets.
4653         * config/i386/i386-protos.h (i386_pe_asm_lto_start): Declare.
4654         (i386_pe_asm_lto_end): Likewise.
4655         * config/i386/cygming.h (TARGET_ASM_LTO_START): Define.
4656         (TARGET_ASM_LTO_END): Likewise.
4657         * config/i386/winnt.c (saved_debug_info_level): New static variable.
4658         (i386_pe_asm_lto_start): New function.
4659         (i386_pe_asm_lto_end): Likewise.
4660
4661 2018-04-12  Cesar Philippidis  <cesar@codesourcery.com>
4662             Richard Biener  <rguenther@suse.de>
4663
4664         PR middle-end/84955
4665         * lto-streamer-out.c (output_function): Fix CFG loop state before
4666         streaming out.
4667         * omp-expand.c (expand_oacc_for): Handle calls to internal
4668         functions like regular functions.
4669
4670 2018-04-12  Richard Biener  <rguenther@suse.de>
4671
4672         PR lto/85371
4673         * dwarf2out.c (init_sections_and_labels): Use debug_line_section[_label]
4674         for the early LTO debug to properly generate references to it
4675         during DIE emission.  Do not re-use that for the skeleton for
4676         split-dwarf.
4677         (dwarf2out_early_finish): Likewise.
4678
4679 2018-04-12  Jakub Jelinek  <jakub@redhat.com>
4680
4681         PR target/85328
4682         * config/i386/sse.md
4683         (<mask_codefor>avx512dq_vextract<shuffletype>64x2_1<mask_name> split,
4684         <mask_codefor>avx512f_vextract<shuffletype>32x4_1<mask_name> split,
4685         vec_extract_lo_<mode><mask_name> split, vec_extract_lo_v32hi,
4686         vec_extract_lo_v64qi): For non-AVX512VL if input is xmm16+ reg
4687         and output is a reg, avoid creating invalid lowpart subreg, but
4688         instead split into a 512-bit move.  Don't split if not AVX512VL,
4689         input is xmm16+ reg and output is a mem.
4690         (vec_extract_lo_<mode><mask_name>, vec_extract_lo_v32hi,
4691         vec_extract_lo_v64qi): Don't require split if not AVX512VL, input is
4692         xmm16+ reg and output is a mem.
4693
4694 2018-04-12  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
4695
4696         * config/s390/s390.c (s390_output_indirect_thunk_function): Check
4697         also for flag_dwarf2_cfi_asm.
4698
4699 2018-04-12  Jakub Jelinek  <jakub@redhat.com>
4700
4701         PR rtl-optimization/85342
4702         * regcprop.c (copyprop_hardreg_forward_1): Remove replaced array, use
4703         a bool scalar var inside of the loop instead.  Don't try to update
4704         recog_data.operand after failed apply_change_group.
4705
4706 2018-04-12  Tom de Vries  <tom@codesourcery.com>
4707
4708         PR target/85296
4709         * config/nvptx/nvptx.c (flexible_array_member_type_p): New function.
4710         (nvptx_assemble_decl_begin): Add undefined param.  Declare undefined
4711         array with flexible array member as array without given dimension.
4712         (nvptx_assemble_undefined_decl): Set nvptx_assemble_decl_begin call
4713         argument for undefined param to true.
4714
4715 2018-04-11  Aaron Sawdey  <acsawdey@linux.ibm.com>
4716
4717         PR target/85321
4718         * doc/invoke.texi (RS/6000 and PowerPC Options): Document options
4719         -mcall- and -mtraceback=. Remove options -mabi=spe and -mabi=no-spe
4720         from PowerPC section.
4721         * config/rs6000/sysv4.opt (mcall-): Improve help text.
4722         * config/rs6000/rs6000.opt (mblock-compare-inline-limit=): Trim
4723         help text that is too long.
4724         * config/rs6000/rs6000.opt (mblock-compare-inline-loop-limit=): Trim
4725         help text that is too long.
4726         * config/rs6000/rs6000.opt (mstring-compare-inline-limit=): Trim
4727         help text that is too long.
4728
4729 2018-04-11  Uros Bizjak  <ubizjak@gmail.com>
4730
4731         * config/alpha/alpha.md (stack_probe_internal): Rename
4732         from "probe_stack".  Update all callers.
4733
4734 2018-04-11  Alexander Monakov  <amonakov@ispras.ru>
4735
4736         PR rtl-optimization/84566
4737         * sched-deps.c (sched_analyze_insn): Check deps->readonly when invoking
4738         sched_macro_fuse_insns.
4739
4740 2018-04-11  Alexander Monakov  <amonakov@ispras.ru>
4741
4742         PR target/84301
4743         * sched-rgn.c (add_branch_dependences): Move sel_sched_p check here...
4744         (compute_block_dependences): ... from here.
4745
4746 2018-04-11  Jakub Jelinek  <jakub@redhat.com>
4747
4748         PR tree-optimization/85331
4749         * vec-perm-indices.h (vec_perm_indices::clamp): Change input type
4750         from int to HOST_WIDE_INT.
4751
4752 2018-04-11  Martin Jambor  <mjambor@suse.cz>
4753
4754         PR ipa/84149
4755         * ipa-cp.c (propagate_vals_across_pass_through): Expand comment.
4756         (cgraph_edge_brings_value_p): New parameter dest_val, check if it is
4757         not the same as the source val.
4758         (cgraph_edge_brings_value_p): New parameter.
4759         (gather_edges_for_value): Pass destination value to
4760         cgraph_edge_brings_value_p.
4761         (perhaps_add_new_callers): Likewise.
4762         (get_info_about_necessary_edges): Likewise and exclude values brought
4763         only by self-recursive edges.
4764         (create_specialized_node): Redirect only clones of self-calling edges.
4765         (+self_recursive_pass_through_p): New function.
4766         (find_more_scalar_values_for_callers_subset): Use it.
4767         (find_aggregate_values_for_callers_subset): Likewise.
4768         (known_aggs_to_agg_replacement_list): Removed.
4769         (decide_whether_version_node): Re-calculate known constants for all
4770         remaining context clones.
4771
4772 2018-04-11  Richard Biener  <rguenther@suse.de>
4773
4774         PR lto/85339
4775         * dwarf2out.c (dwarf2out_finish): Remove DW_AT_stmt_list attribute
4776         from early DWARF output.
4777         (dwarf2out_early_finish): Output line info unconditionally into
4778         early DWARF and add reference to it.
4779
4780 2018-04-11  Jakub Jelinek  <jakub@redhat.com>
4781
4782         PR target/85281
4783         * config/i386/sse.md (iptr): Add V16SFmode and V8DFmode cases.
4784         (<avx512>_vec_dup<mode><mask_name>): Use a single pattern for modes
4785         other than V2DFmode using iptr mode attribute.
4786         (<avx512>_vec_dup<mode><mask_name>): Use iptr mode attribute.
4787
4788 2018-04-11  Alexander Monakov  <amonakov@ispras.ru>
4789
4790         PR rtl-optimization/84659
4791         * sel-sched-ir.c (sel_init_pipelining): Invoke cleanup_cfg.
4792
4793 2018-04-11  Jakub Jelinek  <jakub@redhat.com>
4794
4795         PR debug/85302
4796         * dwarf2out.c (skip_loc_list_entry): Don't call size_of_locs if
4797         SIZEP is NULL.
4798         (output_loc_list): Pass address of a dummy size variable even in the
4799         locview handling loop.
4800         (index_location_lists): Add comment on why skip_loc_list_entry can't
4801         call size_of_locs.
4802
4803 2018-04-11  Thomas Preud'homme  <thomas.preudhomme@arm.com>
4804
4805         PR target/85261
4806         * config/arm/arm-builtins.c (arm_expand_builtin): Force input operand
4807         into register.
4808
4809 2018-04-10  Aaron Sawdey  <acsawdey@linux.ibm.com>
4810
4811         PR target/85321
4812         * doc/invoke.texi (RS/6000 and PowerPC Options): Document options
4813         -mblock-compare-inline-limit, -mblock-compare-inline-loop-limit,
4814         and -mstring-compare-inline-limit.
4815
4816 2018-04-10  Segher Boessenkool  <segher@kernel.crashing.org>
4817
4818         PR target/85287
4819         * gcc/config/rs6000/rs6000.md (allocate_stack): Put the residual size
4820         for stack clash protection in a register whenever we need it to be in
4821         a register.
4822
4823 2018-04-10  Segher Boessenkool  <segher@kernel.crashing.org>
4824
4825         * common/config/rs6000/rs6000-common.c (rs6000_option_init_struct):
4826         Enable -fasynchronous-unwind-tables by default if OBJECT_FORMAT_ELF.
4827
4828 2018-04-10  Segher Boessenkool  <segher@kernel.crashing.org>
4829
4830         PR target/85321
4831         * config/rs6000/rs6000.opt (mtraceback=): Show the allowed values in
4832         the help text.
4833         (mlong-double-): Ditto.
4834         * config/rs6000/sysv4.opt (msdata=): Ditto.
4835         (mtls-size=): Ditto.
4836
4837 2018-04-10  Kelvin Nilsen  <kelvin@gcc.gnu.org>
4838
4839         * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Remove
4840         erroneous entries for
4841         "vector int vec_ldl (int, long int *)", and
4842         "vector unsigned int vec_ldl (int, unsigned long int *)".
4843         Add comments and entries for
4844         "vector bool char vec_ldl (int, bool char *)",
4845         "vector bool short vec_ldl (int, bool short *)",
4846         "vector bool int vec_ldl (int, bool int *)",
4847         "vector bool long long vec_ldl (int, bool long long *)",
4848         "vector pixel vec_ldl (int, pixel *)",
4849         "vector long long vec_ldl (int, long long *)",
4850         "vector unsigned long long vec_ldl (int, unsigned long long *)".
4851         * config/rs6000/rs6000.c (rs6000_init_builtins): Initialize new
4852         type tree bool_long_long_type_node and correct definition of
4853         bool_V2DI_type_node to make reference to this new type tree.
4854         (rs6000_mangle_type): Replace erroneous reference to
4855         bool_long_type_node with bool_long_long_type_node.
4856         * config/rs6000/rs6000.h (enum rs6000_builtin_type_index): Add
4857         comments to emphasize sign distinctions for char and int types and
4858         replace RS6000_BTI_bool_long constant with
4859         RS6000_BTI_bool_long_long constant.  Also add comment to restrict
4860         use of RS6000_BTI_pixel.
4861         (bool_long_type_node): Remove this macro definition.
4862         (bool_long_long_type_node): New macro definition
4863
4864 2018-04-10  Jakub Jelinek  <jakub@redhat.com>
4865
4866         PR rtl-optimization/85300
4867         * combine.c (subst): Handle subst of CONST_SCALAR_INT_P new_rtx also
4868         into FLOAT and UNSIGNED_FLOAT like ZERO_EXTEND, return a CLOBBER if
4869         simplify_unary_operation fails.
4870
4871 2018-04-10  Martin Liska  <mliska@suse.cz>
4872
4873         * gdbhooks.py: Add pretty-printers for varpool_node, symtab_node,
4874         cgraph_edge and ipa_ref.
4875
4876 2018-04-10  Jakub Jelinek  <jakub@redhat.com>
4877
4878         PR target/85177
4879         PR target/85255
4880         * config/i386/sse.md
4881         (<extract_type>_vinsert<shuffletype><extract_suf>_mask): Fix
4882         computation of the VEC_MERGE selector from mask.
4883         (<extract_type>_vinsert<shuffletype><extract_suf>_1<mask_name>):
4884         Fix decoding of the VEC_MERGE selector into mask.
4885
4886 2018-04-10  Richard Sandiford  <richard.sandiford@linaro.org>
4887
4888         PR tree-optimization/85286
4889         * tree-vect-data-refs.c (vect_get_smallest_scalar_type):
4890
4891 2018-04-10  Richard Sandiford  <richard.sandiford@linaro.org>
4892
4893         * final.c (final_1): Set insn_last_address as well as
4894         insn_current_address.
4895
4896 2018-04-10  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
4897
4898         PR target/85173
4899         * explow.c (emit_stack_probe): Call validize_mem on memory location
4900         before passing it to gen_probe_stack.  Create address operand and
4901         legitimize it for the probe_stack_address case.
4902
4903 2018-04-09  Jan Hubicka  <jh@suse.cz>
4904
4905         PR lto/85078
4906         * ipa-devirt.c (rebuild_type_inheritance-hash): New.
4907         * ipa-utils.h (rebuild_type_inheritance-hash): Declare.
4908         * tree.c (free_lang_data_in_type): Fix handling of binfos;
4909         walk basetypes.
4910         (free_lang_data): Rebuild type inheritance graph.
4911
4912 2018-04-09  Martin Sebor  <msebor@redhat.com>
4913
4914         * invoke.texi (-finline-small-functions): Mention other optimization
4915         options.
4916         (-findirect-inlining, -fpartial-inlining): Same.
4917         (-finline-functions-called-once): Same.
4918         (-freorder-blocks-and-partition): Same.
4919
4920 2018-04-09  Jan Hubicka  <jh@suse.cz>
4921
4922         PR rtl/84058
4923         * cfgcleanup.c (try_forward_edges): Do not give up on crossing
4924         jumps; choose last target that matches the criteria (i.e.
4925         no partition changes for non-crossing jumps).
4926         * cfgrtl.c (cfg_layout_redirect_edge_and_branch): Add basic
4927         support for redirecting crossing jumps to non-crossing.
4928
4929 2018-04-09  Alexey Brodkin  <abrodkin@synopsys.com>
4930
4931         * config/arc/arc.c (arc_expand_prologue): Set stack usage info
4932         also for naked functions.
4933
4934 2018-04-09  Claudiu Zissulescu  <claziss@synopsys.com>
4935
4936         * config/arc/arc.md (add_shift): New pattern.
4937         (add_shift2): Likewise.
4938         (sub_shift): Likewise.
4939         (sub_shift_cmp0_noout): Likewise.
4940         (compare_si_ashiftsi): Likewise.
4941         (xbfu_cmp0_noout): New combine pattern.
4942         (xbfu_cmp0"): Likewise.
4943         (movsi_set_cc_insn): Place the predicable variant first.
4944         (commutative_binary_cmp0_noout): Remove clobber.
4945         (commutative_binary_cmp0): New pattern.
4946         (noncommutative_binary_cmp0): Likewise.
4947         (noncommutative_binary_cmp0_noout): Likewise.
4948         (noncommutative_binary_comparison_result_used): Removed.
4949         (rsub_cmp0): New pattern.
4950         (rsub_cmp0_noout): Likewise.
4951         (extzvsi): Changed, keep only meaningful variants.
4952         (SQH, SEZ): New iterators.
4953         (SQH_postfix): New mode attribute.
4954         (SEZ_prefix): New code attribute.
4955         (<SEZ_prefix>xt<SQH_postfix>_cmp0_noout): New instruction pattern.
4956         (<SEZ_prefix>xt<SQH_postfix>_cmp0): Likewise.
4957         * config/arc/predicates.md (cc_set_register): Use CC_REG instead
4958         of numerical value.
4959         (noncommutative_operator): Check the availability of barrel
4960         shifter option.
4961
4962 2018-04-09  Richard Biener  <rguenther@suse.de>
4963
4964         PR tree-optimization/85284
4965         * tree-ssa-loop-niter.c (number_of_iterations_exit_assumptions):
4966         Only use the niter constraining form of simple_iv when the exit
4967         is always executed.
4968
4969 2018-04-09  Tom de Vries  <tom@codesourcery.com>
4970
4971         PR target/84041
4972         * config/nvptx/nvptx.md (define_c_enum "unspecv"): Add UNSPECV_MEMBAR.
4973         (define_expand "*memory_barrier"): New define_expand.
4974         (define_insn "memory_barrier"): New insn.
4975
4976 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
4977
4978         PR rtl-optimization/80463
4979         PR rtl-optimization/83972
4980         PR rtl-optimization/83480
4981
4982         * sel-sched-ir.c (has_dependence_note_mem_dep): Take into account the
4983         correct producer for the insn.
4984         (tidy_control_flow): Fixup seqnos in case of debug insns.
4985
4986 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
4987
4988         PR rtl-optimization/83913
4989
4990         * sel-sched-ir.c (merge_expr_data): Choose the middle between two
4991         different sched-times when merging exprs.
4992
4993 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
4994
4995         PR rtl-optimization/83962
4996
4997         * sel-sched-ir.c (tidy_control_flow): Correct the order in which we call
4998         tidy_fallthru_edge and tidy_control_flow.
4999
5000 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
5001
5002         PR rtl-optimization/83530
5003
5004         * sel-sched.c (force_next_insn): New global variable.
5005         (remove_insn_for_debug): When force_next_insn is true, also leave only
5006         next insn in the ready list.
5007         (sel_sched_region): When the region wasn't scheduled, make another pass
5008         over it with force_next_insn set to 1.
5009
5010 2018-04-08  Monk Chiang  <sh.chiang04@gmail.com>
5011
5012         * config.gcc (nds32le-*-*, nds32be-*-*): Add nds32/nds32_intrinsic.h
5013         into tm_file.
5014         * config/nds32/constants.md (unspec_volatile_element): Add enum values
5015         for interrupt control.
5016         * config/nds32/nds32-intrinsic.c: Implementation of intrinsic
5017         functions for interrupt control.
5018         * config/nds32/nds32-intrinsic.md: Likewise.
5019         * config/nds32/nds32_intrinsic.h: Likewise.
5020         * config/nds32/nds32.h (nds32_builtins): Likewise.
5021
5022 2018-04-08  Chung-Ju Wu  <jasonwucj@gmail.com>
5023
5024         * config/nds32/nds32.c (nds32_init_machine_status,
5025         nds32_legitimate_index_p, nds32_legitimate_address_p): Consider
5026         strict_aligned_p field.
5027         (nds32_expand_to_rtl_hook): New function.
5028         (TARGET_EXPAND_TO_RTL_HOOK): Define.
5029         * config/nds32/nds32.h (machine_function): Add strict_aligned_p field.
5030
5031 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
5032             Chung-Ju Wu  <jasonwucj@gmail.com>
5033
5034         * config.gcc (nds32*-*-*): Check that n7 is valid to --with-cpu.
5035         * config/nds32/nds32-n7.md: New file.
5036         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_N7.
5037         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n7
5038         pipeline.
5039         * config/nds32/nds32-protos.h: More declarations for n7 pipeline.
5040         * config/nds32/nds32.md (pipeline_model): Add n7.
5041         * config/nds32/nds32.opt (mcpu): Support n7 pipeline cpus.
5042         * config/nds32/pipelines.md: Include n7 settings.
5043
5044 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
5045             Chung-Ju Wu  <jasonwucj@gmail.com>
5046
5047         * config.gcc (nds32*-*-*): Check that e8 is valid to --with-cpu.
5048         * config/nds32/nds32-e8.md: New file.
5049         * config/nds32/nds32-opts.h (nds32-cpu_type): Add CPU_E8.
5050         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for e8
5051         pipeline.
5052         * config/nds32/nds32-protos.h: More declarations for e8 pipeline.
5053         * config/nds32/nds32.md (pipeline_model): Add e8.
5054         * config/nds32/nds32.opt (mcpu): Support e8 pipeline cpus.
5055         * config/nds32/pipelines.md: Include e8 settings.
5056
5057 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
5058             Chung-Ju Wu  <jasonwucj@gmail.com>
5059
5060         * config.gcc (nds32*-*-*): Check that n6/n8/s8 are valid to --with-cpu.
5061         * config/nds32/nds32-n8.md: New file.
5062         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_N6 and CPU_N8.
5063         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n8
5064         pipeline.
5065         * config/nds32/nds32-protos.h: More declarations for n8 pipeline.
5066         * config/nds32/nds32-utils.c: More implementations for n8 pipeline.
5067         * config/nds32/nds32.md (pipeline_model): Add n8.
5068         * config/nds32/nds32.opt (mcpu): Support n8 pipeline cpus.
5069         * config/nds32/pipelines.md: Include n8 settings.
5070
5071 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
5072             Chung-Ju Wu  <jasonwucj@gmail.com>
5073
5074         * config.gcc (nds32*): Add nds32-utils.o into extra_objs.
5075         * config/nds32/nds32-n9-2r1w.md: New file.
5076         * config/nds32/nds32-n9-3r2w.md: New file.
5077         * config/nds32/nds32-opts.h (nds32_cpu_type, nds32_mul_type,
5078         nds32_register_ports): New or modify for cpu n9.
5079         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n9
5080         pipeline.
5081         * config/nds32/nds32-protos.h: More declarations for n9 pipeline.
5082         * config/nds32/nds32-utils.c: New file.
5083         * config/nds32/nds32.h (TARGET_PIPELINE_N9, TARGET_PIPELINE_SIMPLE,
5084         TARGET_MUL_SLOW): Define.
5085         * config/nds32/nds32.md (pipeline_model): New attribute.
5086         * config/nds32/nds32.opt (mcpu, mconfig-mul, mconfig-register-ports):
5087         New options that support cpu n9.
5088         * config/nds32/pipelines.md: Include n9 settings.
5089         * config/nds32/t-nds32 (nds32-utils.o): Add dependency.
5090
5091 2018-04-08  Chung-Ju Wu  <jasonwucj@gmail.com>
5092
5093         * config/nds32/nds32-md-auxiliary.c (output_cond_branch): Output align
5094         information if necessary.
5095         (output_cond_branch_compare_zero): Likewise.
5096         * config/nds32/nds32.c (nds32_adjust_insn_length): Consider align case.
5097         (nds32_target_alignment): Refine for alignment.
5098         * config/nds32/nds32.h (NDS32_ALIGN_P): Define.
5099         (FUNCTION_BOUNDARY): Modify.
5100         * config/nds32/nds32.md (call_internal, call_value_internal): Consider
5101         align case.
5102         * config/nds32/nds32.opt (malways-align, malign-functions): New.
5103
5104 2018-04-08  Monk Chiang  <sh.chiang04@gmail.com>
5105
5106         * config/nds32/constants.md (unspec_volatile_element): Add values for
5107         TLB operation and data prefetch.
5108         * config/nds32/nds32-intrinsic.c: Implementation of intrinsic
5109         functions for TLB operation and data prefetch.
5110         * config/nds32/nds32-intrinsic.md: Likewise.
5111         * config/nds32/nds32_intrinsic.h: Likewise.
5112         * config/nds32/nds32.c (nds32_dpref_names): Likewise.
5113         (nds32_print_operand): Likewise.
5114         * config/nds32/nds32.h (nds32_builtins): Likewise.
5115
5116 2018-04-07  Thomas Koenig  <tkoenig@gcc.gnu.org>
5117         Andrew Pinski <pinsika@gcc.gnu.org>
5118
5119         PR middle-end/82976
5120         * match.pd: Use constant_boolean_node of correct type instead of
5121         boolean_true_node or boolean_false_node for simplifying
5122         pointer comparisons to zero.
5123
5124 2018-04-07  Jakub Jelinek  <jakub@redhat.com>
5125
5126         PR tree-optimization/80021
5127         * tree.c (verify_type_variant): Make error call in verify_variant_match
5128         translatable and remove final full stop.
5129
5130 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
5131
5132         * config/nds32/constants.md (unspec_volatile_element): Add
5133         UNSPEC_VOLATILE_EH_RETURN.
5134         * config/nds32/nds32-md-auxiliary.c (nds32_output_stack_push,
5135         nds32_output_stack_pop): Support dwarf exception handling process.
5136         * config/nds32/nds32-protos.h (nds32_dynamic_chain_address): Declare.
5137         * config/nds32/nds32.c (nds32_init_machine_status): Support dwarf
5138         exception handling process.
5139         (nds32_compute_stack_frame): Likewise.
5140         (nds32_return_addr_rtx): Likewise.
5141         (nds32_initial_elimination_offset): Likewise.
5142         (nds32_expand_prologue): Likewise.
5143         (nds32_expand_epilogue): Likewise.
5144         (nds32_dynamic_chain_address): New function.
5145         * config/nds32/nds32.h (machine_function): Add fields for dwarf
5146         exception handling.
5147         (DYNAMIC_CHAIN_ADDRESS): Define.
5148         (EH_RETURN_DATA_REGNO): Define.
5149         (EH_RETURN_STACKADJ_RTX): Define.
5150         * config/nds32/nds32.md (eh_return, nds32_eh_return): Implement
5151         patterns for dwarf exception handling.
5152
5153 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
5154
5155         * config/nds32/nds32.h: Clean up obsolete macros.
5156
5157 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
5158
5159         * config/nds32/constants.md (unspec_element, unspec_volatile_element):
5160         Add enum values for particular instructions.
5161         * config/nds32/nds32-intrinsic.c: Implementation of expanding
5162         particular intrinsic functions.
5163         * config/nds32/nds32-intrinsic.md: Likewise.
5164         * config/nds32/nds32_intrinsic.h: Likewise.
5165         * config/nds32/nds32.h (nds32_builtins): Likewise.
5166         * config/nds32/nds32.md (type): Add pbsad and pbsada.
5167         (btst, ave): New patterns for particular instructions.
5168
5169 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
5170
5171         * config/nds32/constants.md (unspec_element, unspec_volatile_element):
5172         Add enum values for atomic load/store and memory sync.
5173         * config/nds32/nds32-intrinsic.c: Implementation for atomic load/store
5174         and memory sync.
5175         * config/nds32/nds32-intrinsic.md: Likewise.
5176         * config/nds32/nds32_intrinsic.h: Likewise.
5177         * config/nds32/nds32.h (nds32_builtins): Likewise.
5178
5179 2018-04-07  Jakub Jelinek  <jakub@redhat.com>
5180
5181         PR tree-optimization/85257
5182         * fold-const.c (native_encode_vector): If not all elts could fit
5183         and off is -1, return 0 rather than offset.
5184         * tree-ssa-sccvn.c (vn_reference_lookup_3): Pass
5185         (offseti - offset2) / BITS_PER_UNIT as 4th argument to
5186         native_encode_expr.  Verify len * BITS_PER_UNIT >= maxsizei.  Don't
5187         adjust buffer in native_interpret_expr call.
5188
5189 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
5190
5191         * config/nds32/constants.md (unspec_volatile_element): Add cache
5192         control enum values.
5193         * config/nds32/nds32-intrinsic.c: Add cache control expand functions.
5194         * config/nds32/nds32-intrinsic.md: Add cache control patterns.
5195         * config/nds32/nds32.c (nds32_cctl_names): New.
5196         (nds32_print_operand): Handle cache control register names.
5197         * config/nds32/nds32.h (nds32_builtins): New enum values.
5198         * config/nds32/nds32_intrinsic.h: Add cache control enum types and
5199         macros.
5200         * config/nds32/nds32.md (type): Add mmu.
5201         * config/nds32/pipelines.md (simple_insn): Add mmu.
5202
5203 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
5204
5205         * config/nds32/nds32.md (type): Remove call.
5206         * config/nds32/pipelines.md (simple_insn): Likewise.
5207
5208 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
5209
5210         * config/nds32/constants.md (unspec_volatile_element): Add
5211         UNSPEC_VOLATILE_FMFCSR, UNSPEC_VOLATILE_FMTCSR and
5212         UNSPEC_VOLATILE_FMFCFG.
5213         * config/nds32/nds32-intrinsic.c (bdesc_noarg): New builtin
5214         description for fmfcfg and fmfcsr.
5215         (bdesc_1arg): Add fmtcsr.
5216         (bdesc_2arg): Add fcpynss, fcpyss, fcpynsd and fcpysd.
5217         (nds32_expand_builtin_impl): Deal with FPU intrinsic functions.
5218         * config/nds32/nds32-intrinsic.md (unspec_fcpynsd, unspec_fcpysd,
5219         unspec_fcpynss, unspec_fcpysd, unspec_fcpyss, unspec_fmfcsr,
5220         unspec_fmfcfg): New patterns.
5221         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_FMFCFG,
5222         NDS32_BUILTIN_FMFCSR, NDS32_BUILTIN_FMTCSR, NDS32_BUILTIN_FCPYNSS,
5223         NDS32_BUILTIN_FCPYSS,NDS32_BUILTIN_FCPYNSD and NDS32_BUILTIN_FCPYSD.
5224         * config/nds32/nds32_intrinsic.h (__nds32__fcpynsd, __nds32__fcpynss,
5225         __nds32__fcpysd, __nds32__fcpyss, __nds32__fmfcsr, __nds32__fmtcsr,
5226         __nds32__fmfcfg): Define.
5227
5228 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
5229
5230         * config/nds32/nds32.c (nds32_intrinsic_register_names): Add more
5231         intrinsic register names.
5232         * config/nds32/nds32_intrinsic.h (nds32_intrinsic_registers): Add more
5233         intrinsic register enum values and macros.
5234
5235 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
5236
5237         * config/nds32/nds32.c (nds32_legitimate_index_p): Modify condition
5238         for load/store addressing form.
5239         (nds32_print_operand_address): Likewise.
5240
5241 2018-04-06  Eric Botcazou  <ebotcazou@adacore.com>
5242
5243         PR target/85196
5244         * config/sparc/sparc.c (sparc_expand_move): Deal with symbolic operands
5245         based on LABEL_REF.  Remove useless assertion.
5246         (pic_address_needs_scratch): Fix formatting.
5247         (sparc_legitimize_pic_address): Minor tweaks.
5248         (sparc_delegitimize_address): Adjust assertion accordingly.
5249         * config/sparc/sparc.md (movsi_pic_label_ref): Change label_ref_operand
5250         into symbolic_operand.
5251         (movsi_high_pic_label_ref): Likewise.
5252         (movsi_lo_sum_pic_label_ref): Likewise.
5253         (movdi_pic_label_ref): Likewise.
5254         (movdi_high_pic_label_ref): Likewise.
5255         (movdi_lo_sum_pic_label_ref): Likewise.
5256
5257 2018-04-06  Amaan Cheval  <amaan.cheval@gmail.com>
5258
5259         * config.gcc (x86_64-*-rtems*): Add rtems.h to tm_file for
5260         custom LIB_SPEC setup.
5261
5262 2018-04-06  Ruslan Bukin  <br@bsdpad.com>
5263             Kito Cheng  <kito.cheng@gmail.com>
5264
5265         * config.gcc (riscv*-*-freebsd*): Add RISC-V FreeBSD support.
5266         * config/riscv/freebsd.h: New.
5267
5268 2018-04-06  Chung-Ju Wu  <jasonwucj@gmail.com>
5269
5270         * config/nds32/nds32.c (nds32_adjust_insn_length): Refine.
5271         * config/nds32/nds32.h (ADJUST_INSN_LENGTH): Change the location in
5272         file.
5273
5274 2018-04-06  Chung-Ju Wu  <jasonwucj@gmail.com>
5275             Kito Cheng  <kito.cheng@gmail.com>
5276
5277         * config/nds32/nds32-md-auxiliary.c (nds32_output_return,
5278         nds32_output_call, nds32_symbol_binds_local_p): New functions.
5279         * config/nds32/nds32-protos.h (nds32_output_call,
5280         nds32_output_return): Declare.
5281         * config/nds32/nds32.md: Refine all the call and return patterns.
5282
5283 2018-04-06  Jakub Jelinek  <jakub@redhat.com>
5284
5285         PR debug/85252
5286         * dwarf2out.c (rtl_for_decl_init): For STRING_CST initializer only
5287         build CONST_STRING if TYPE_MAX_VALUE is non-NULL and is INTEGER_CST.
5288
5289         PR rtl-optimization/84872
5290         * cfgloopmanip.c (create_preheader): Use make_forwarder_block even if
5291         nentry == 1 when CP_FALLTHRU_PREHEADERS and single_entry is
5292         EDGE_CROSSING edge.
5293
5294 2018-04-06  Tamar Christina  <tamar.christina@arm.com>
5295
5296         * expr.c (copy_blkmode_to_reg): Revert 254862.
5297         * doc/sourcebuild.texi (word_mode_no_slow_unalign): Likewise.
5298
5299 2018-04-06  Richard Biener  <rguenther@suse.de>
5300
5301         PR middle-end/85244
5302         * tree-dfa.c (get_ref_base_and_extent): Reset seen_variable_array_ref
5303         after seeing a component reference with an adjacent field.  Treat
5304         refs to arrays at struct end of external decls similar to
5305         refs to unconstrained commons.
5306
5307 2018-04-06  Jakub Jelinek  <jakub@redhat.com>
5308
5309         PR sanitizer/85213
5310         * fold-const.c (twoval_comparison_p): Remove SAVE_P argument and don't
5311         look through SAVE_EXPRs with non-side-effects argument.  Adjust
5312         recursive calls.
5313         (fold_comparison): Adjust twoval_comparison_p caller, don't handle
5314         save_p here.
5315
5316 2018-04-06  Richard Biener  <rguenther@suse.de>
5317
5318         PR middle-end/85180
5319         * alias.c (find_base_term): New wrapper around find_base_term
5320         unwinding CSELIB_VAL_PTR changes.
5321         (find_base_term): Do not restore CSELIB_VAL_PTR during the
5322         recursion.
5323
5324 2018-04-06  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
5325
5326         * config/s390/s390.c (s390_z10_optimize_cmp): Expand dedicated NOP
5327         instructions.
5328         * config/s390/s390.md (UNSPECV_NOP_LR_0, UNSPECV_NOP_LR_1): New
5329         constant definitions.
5330         ("nop"): lr 0,0 -> nopr r0
5331         ("nop_lr0", "nop_lr1"): New insn definitions.
5332
5333 2018-04-06  Chung-Ju Wu  <jasonwucj@gmail.com>
5334
5335         * config/nds32/nds32.md (*stack_push, *stack_pop): Use
5336         NDS32_V3PUSH_AVAILABLE_P macro.
5337
5338 2018-04-06  Monk Chiang  <sh.chiang04@gmail.com>
5339             Chung-Ju Wu  <jasonwucj@gmail.com>
5340
5341         * config.gcc (nds32*-*-*): Add v2j v3f v3s checking.
5342         (nds32*-*-*): Add float and fpu_config into supported_defaults.
5343         * common/config/nds32/nds32-common.c (TARGET_DEFAULT_TARGET_FLAGS):
5344         Include TARGET_DEFAULT_FPU_ISA and TARGET_DEFAULT_FPU_FMA.
5345         * config/nds32/constants.md (unspec_element): Add UNSPEC_COPYSIGN,
5346         UNSPEC_FCPYNSD, UNSPEC_FCPYNSS, UNSPEC_FCPYSD and UNSPEC_FCPYSS.
5347         * config/nds32/constraints.md: New constraints and checking for hard
5348         float configuration.
5349         * config/nds32/iterators.md: New mode iterator and attribute for hard
5350         float configuration.
5351         * config/nds32/nds32-doubleword.md: Use hard float alternatives and
5352         patterns.
5353         * config/nds32/nds32-fpu.md: New file.
5354         * config/nds32/nds32-md-auxiliary.c: New functions and checkings to
5355         deal with hard float code generation.
5356         * config/nds32/nds32-opts.h (nds32_arch_type): Add ARCH_V3F and
5357         ARCH_V3S.
5358         (abi_type, float_reg_number): New enum type.
5359         * config/nds32/nds32-predicates.c: New predicates for hard float.
5360         * config/nds32/nds32-protos.h: Declare functions for hard float.
5361         * config/nds32/nds32.c: Implementation for hard float configuration.
5362         * config/nds32/nds32.h: Definitions for hard float configuration.
5363         * config/nds32/nds32.md: Include hard float machine description and
5364         modify patterns for hard float configuration.
5365         * config/nds32/nds32.opt: New options for hard float configuration.
5366         * config/nds32/predicates.md: New predicates for hard float
5367         configuration.
5368
5369 2018-04-06  Kuan-Lin Chen  <kuanlinchentw@gmail.com>
5370
5371         * common/config/nds32/nds32-common.c
5372         (nds32_option_optimization_table): Enable -mreleax-hint by default.
5373
5374 2018-04-05  Jakub Jelinek  <jakub@redhat.com>
5375
5376         PR middle-end/85195
5377         * match.pd (BIT_FIELD_REF CONSTRUCTOR@0 @1 @2): Use view_convert around
5378         CONSTRUCTOR_ELT (ctor, ...)->value.
5379
5380 2018-04-05  Uros Bizjak  <ubizjak@gmail.com>
5381
5382         PR target/85193
5383         * config/i386/i386.md (define_attr "memory"): Handle rotate1 type.
5384
5385 2018-04-05  Tom de Vries  <tom@codesourcery.com>
5386
5387         PR target/85204
5388         * config/nvptx/nvptx.c (nvptx_single): Fix neutering of bb with only
5389         cond jump.
5390
5391 2018-04-05  Shiva Chen  <shiva0217@gmail.com>
5392             Kito Cheng  <kito.cheng@gmail.com>
5393
5394         * config/nds32/constraints.md (U33): Fine-tune checking condition.
5395         * config/nds32/nds32-md-auxiliary.c (nds32_mem_format): Ditto.
5396         * config/nds32/nds32.h (nds32_16bit_address_type): Add
5397         ADDRESS_POST_MODIFY_LO_REG_IMM3U.
5398
5399 2018-04-05  Shiva Chen  <shiva0217@gmail.com>
5400             Kito Cheng  <kito.cheng@gmail.com>
5401
5402         * config/nds32/constraints.md (Ufe): New memory constraint.
5403         * config/nds32/nds32-md-auxiliary.c (nds32_mem_format,
5404         nds32_output_16bit_load): Consider r8 register for lwi45.fe format.
5405         * config/nds32/nds32.c (nds32_print_operand): Output lwi45.fe
5406         operands.
5407         * config/nds32/nds32.h (nds32_16bit_address_type): Add ADDRESS_R8_IMM7U.
5408         * config/nds32/nds32.md (*mov<mode>): Adjust pattern.
5409
5410 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
5411
5412         * config/nds32/nds32.md: Use optimize_size in the condition for
5413         alu-shift instructions.
5414
5415 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
5416
5417         * config/nds32/nds32.md (divsi4, udivsi4): New patterns.
5418
5419 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
5420
5421         * config/nds32/nds32.md (negsi2): Refine pattern.
5422
5423 2018-04-05  Kito Cheng  <kito.cheng@gmail.com>
5424             Chung-Ju Wu  <jasonwucj@gmail.com>
5425
5426         * config/nds32/iterators.md (shift_rotate): New code iterator.
5427         (shift): New code attribute.
5428         * config/nds32/nds32-md-auxiliary.c (nds32_expand_constant): New.
5429         * config/nds32/nds32-protos.h (nds32_expand_constant): Declare.
5430         * config/nds32/nds32.c (nds32_print_operand): Deal with more cases.
5431         * config/nds32/nds32.md (addsi3, *add_srli): Refine implementation for
5432         bit-wise operations.
5433         (andsi3, *andsi3): Ditto.
5434         (iorsi3, *iorsi3, *or_slli, *or_srli): Ditto.
5435         (xorsi3, *xorsi3, *xor_slli, *xor_srli): Ditto.
5436         (<shift>si3, *ashlsi3, *ashrsi3, *lshrsi3, *rotrsi3): Ditto.
5437         * config/nds32/predicates.md (nds32_rimm5u_operand, nds32_and_operand,
5438         nds32_ior_operand, nds32_xor_operand): New predicates.
5439
5440 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
5441
5442         * config/nds32/nds32.md (add<mode>3, sub<mode>3): Rename to ...
5443         (addsi3, subsi3): ... this.
5444
5445 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
5446
5447         * config/nds32/nds32.md (*sub_srli, *and_slli): Fine-tune predicator.
5448
5449 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
5450
5451         * config/nds32/nds32.md: Adjust indention.
5452
5453 2018-04-05  Kito Cheng  <kito.cheng@gmail.com>
5454
5455         * config/nds32/nds32.md (feature): New attribute.
5456
5457 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
5458
5459         * config/nds32/nds32.md (subtype): New attribute.
5460
5461 2018-04-04  Thomas Preud'homme  <thomas.preudhomme@arm.com>
5462
5463         PR target/85203
5464         * config/arm/arm-builtins.c (arm_expand_builtin): Change
5465         expansion to perform a bitwise AND of the argument followed by a
5466         boolean negation of the result.
5467
5468 2018-04-04  Peter Bergner  <bergner@vnet.ibm.com>
5469
5470         PR rtl-optimization/84878
5471         * ddg.c (add_cross_iteration_register_deps): Use DF_REF_BB to determine
5472         the basic block.  Assert the use reference is not artificial and that
5473         it has an associated insn.
5474
5475 2018-04-04  Michael Matz  <matz@suse.de>
5476
5477         * builtins.c (compute_objsize): Pass correct operand
5478         to array_at_struct_end_p.
5479
5480 2018-04-04  Richard Biener  <rguenther@suse.de>
5481
5482         PR lto/85176
5483         * dwarf2out.c (dwarf2out_register_external_die): Peel namespaces
5484         from contexts for DINFO_LEVEL_TERSE and below.
5485
5486 2018-04-04  Kito Cheng  <kito.cheng@gmail.com>
5487
5488         * config/nds32/nds32-doubleword.md (move_<mode>): Require
5489         resiter_operand condition.
5490         * config/nds32/nds32.md (*move<mode>): Ditto.
5491
5492 2018-04-04  Kito Cheng  <kito.cheng@gmail.com>
5493             Monk Chiang  <sh.chiang04@gmail.com>
5494
5495         * config/nds32/nds32.md (movmisalign<mode>): New pattern.
5496
5497 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
5498
5499         * config/nds32/nds32.md (movqi, movhi): Merge into mov<mode>.
5500
5501 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
5502             Kito Cheng  <kito.cheng@gmail.com>
5503
5504         * config/nds32/nds32-md-auxiliary.c (nds32_inverse_cond_code,
5505         nds32_cond_code_str, output_cond_branch,
5506         output_cond_branch_compare_zero, nds32_expand_cbranch,
5507         nds32_expand_cstore, nds32_expand_movcc,
5508         nds32_output_cbranchsi4_equality_zero,
5509         nds32_output_cbranchsi4_equality_reg,
5510         nds32_output_cbranchsi4_equality_reg_or_const_int,
5511         nds32_output_cbranchsi4_greater_less_zero: New functions.
5512         * config/nds32/nds32-protos.h (nds32_expand_cbranch,
5513         nds32_expand_cstore, nds32_expand_movcc,
5514         nds32_output_cbranchsi4_equality_zero,
5515         nds32_output_cbranchsi4_equality_reg,
5516         nds32_output_cbranchsi4_equality_reg_or_const_int,
5517         nds32_output_cbranchsi4_greater_less_zero): Declare.
5518         * config/nds32/predicates.md (nds32_movecc_comparison_operator,
5519         nds32_rimm11s_operand): New predicates.
5520         * config/nds32/nds32.h (nds32_expand_result_type): New enum type.
5521         * config/nds32/nds32.md: Rewrite all the branch and conditional move
5522         patterns.
5523
5524 2018-04-04  Kito Cheng  <kito.cheng@gmail.com>
5525
5526         * config/nds32/nds32-doubleword.md: Refine all the instruction type.
5527         * config/nds32/nds32.md: Ditto.
5528         * config/nds32/pipelines.md: Ditto.
5529
5530 2018-04-04  Richard Biener  <rguenther@suse.de>
5531
5532         PR tree-optimization/85168
5533         * tree-ssa-sccvn.c (vn_reference_maybe_forwprop_address): Avoid
5534         propagating abnormals.
5535
5536 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
5537
5538         * config/nds32/nds32.md (enabled): Use yes/no for this attribute.
5539
5540 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
5541             Kito Cheng  <kito.cheng@gmail.com>
5542
5543         * config/nds32/nds32-md-auxiliary.c (nds32_long_call_p): New function.
5544         * config/nds32/nds32-protos.h (nds32_long_call_p): Declare.
5545         * config/nds32/nds32.c (nds32_function_ok_for_sibcall): New function.
5546         (TARGET_FUNCTION_OK_FOR_SIBCALL): Define.
5547         * config/nds32/nds32.md (sibcall_internal): New.
5548         (sibcall_register): Remove.
5549         (sibcall_immediate): Remove.
5550         (sibcall_value_internal): New.
5551         (sibcall_value_register): Remove.
5552         (sibcall_value_immediate): Remove.
5553         * config/nds32/predicates.md (nds32_general_register_operand): New.
5554         (nds32_call_address_operand): New.
5555
5556 2018-04-03  Jakub Jelinek  <jakub@redhat.com>
5557
5558         PR rtl-optimization/85167
5559         * shrink-wrap.c (move_insn_for_shrink_wrap): Don't set bb_uses and
5560         bb_defs if *split_p, instead preinitialize it to NULL.
5561
5562         PR tree-optimization/85156
5563         * builtins.c (fold_builtin_expect): Use save_expr on arg1 to avoid
5564         evaluating the argument multiple times.
5565
5566 2018-04-03  Bill Schmidt  <wschmidt@linux.ibm.com>
5567
5568         * config/rs6000/emmintrin.h (_mm_cvtpd_epi32): Use __vector rather
5569         than vector.
5570         (_mm_cvtpd_ps): Likewise.
5571         (_mm_cvttpd_epi32): Likewise.
5572         * config/rs6000/mmintrin.h (_mm_unpacklo_pi8): Likewise.
5573         * config/rs6000/xmmintrin.h: For strict-ANSI C++ or C11, undefine
5574         vector, pixel, and bool following altivec.h include.
5575
5576 2018-04-03  Martin Sebor  <msebor@redhat.com>
5577
5578         * doc/extend.texi (Common Function Attributes): Clarify.
5579         (const attribute): Likewise.
5580         (pure attribute): Likewise.
5581
5582 2018-04-03  Jakub Jelinek  <jakub@redhat.com>
5583
5584         PR target/85169
5585         * config/i386/i386.c (ix86_expand_vector_set): Use
5586         HOST_WIDE_INT_1U << elt instead of 1 << elt.  Formatting fix.
5587
5588 2018-04-03  Uros Bizjak  <ubizjak@gmail.com>
5589
5590         * config/i386/i386.c (emit_i387_cw_initialization): Always use logic
5591         instructions when changing rounding bits to preserve precision bits
5592         in the x87 control word.
5593
5594 2018-04-03  Martin Liska  <mliska@suse.cz>
5595
5596         PR tree-optimization/82491
5597         * rtl.h (strip_offset_and_add): Replace += suboffset with
5598         poly_uint64 () + suboffset.
5599
5600 2018-03-29  Martin Liska  <mliska@suse.cz>
5601             Martin Jambor  <mjambor@suse.cz>
5602
5603         PR ipa/84947
5604         * ipa-cp.c (propagate_bits_across_jump_function): Bail out if
5605         param_type is not an integral or pointer type.
5606
5607 2018-04-03  Richard Biener  <rguenther@suse.de>
5608
5609         * sese.h (recompute_all_dominators): Remove.
5610
5611 2018-04-02  Martin Sebor  <msebor@redhat.com>
5612
5613         * doc/invoke.texi (-Wrestrict): Fix typos.
5614
5615 2018-04-02  Jim Wilson  <jimw@sifive.com>
5616
5617         * config/riscv/riscv.h (SHIFT_COUNT_TRUNCATED): Set to zero.
5618         * config/riscv/riscv.md (<optab>si3): Use QImode shift count.
5619         (<optab>di3, <optab>si3_extend): Likewise.
5620         (<optab>si3_mask, <optab>si3_mask_1): New.
5621         (<optab>di3_mask, <optab>di3_mask_1): New.
5622         (<optab>si3_extend_mask, <optab>si3_extend_mask_1): New.
5623         (lshrsi3_zero_extend_1): Use VOIDmode shift count.
5624         * config/riscv/sync.md (atomic_test_and_set): Emit QImode shift count.
5625
5626 2018-04-02  Gerald Pfeifer  <gerald@pfeifer.com>
5627
5628         * doc/cpp.texi (Variadic Macros): Fix line continuation in an
5629         example.
5630
5631 2018-04-02  Chung-Ju Wu  <jasonwucj@gmail.com>
5632
5633         * config/nds32/nds32.c (TARGET_CANONICALIZE_COMPARISON): Define.
5634         (nds32_canonicalize_comparison): New function.
5635
5636 2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
5637             Kito Cheng  <kito.cheng@gmail.com>
5638             Kuan-Lin Chen  <kuanlinchentw@gmail.com>
5639
5640         * config.gcc (nds32): Add nds32-relax-opt.o into extra_objs.
5641         * config/nds32/constants.md (unspec_volatile_element): Add
5642         UNSPEC_VOLATILE_RELAX_GROUP.
5643         * config/nds32/nds32-relax-opt.c: New file.
5644         * config/nds32/nds32-predicates.c
5645         (nds32_symbol_load_store_p): New function.
5646         * config/nds32/nds32-protos.h
5647         (nds32_symbol_load_store_p): Declare function.
5648         (make_pass_nds32_relax_opt): Declare new rtl pass function.
5649         * config/nds32/nds32.c
5650         (nds32_register_pass): New function to register pass.
5651         (nds32_register_passes): New function to register passes.
5652         * config/nds32/nds32.md (relax_group): New pattern.
5653         * config/nds32/nds32.opt (mrelax-hint): New option.
5654         * config/nds32/t-nds32 (nds32-relax-opt.o): New dependency.
5655
5656 2018-04-01  Kito Cheng  <kito.cheng@gmail.com>
5657
5658         * config/nds32/t-nds32: Modify files dependency.
5659
5660 2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
5661
5662         * config/nds32/nds32.h (FUNCTION_PROFILER): Output newline character.
5663         (PROFILE_HOOK): Define its implementation.
5664
5665 2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
5666
5667         * config/nds32/nds32.h (WCHAR_TYPE, WCHAR_TYPE_SIZE): Use unsigned int
5668         type and 32-bit size.
5669
5670 2018-04-01  Jakub Jelinek  <jakub@redhat.com>
5671
5672         PR middle-end/85090
5673         * config/i386/sse.md (V): Add V64QI and V32HI for TARGET_AVX512F.
5674         (V_128_256): New mode iterator.
5675         (*avx512dq_vextract<shuffletype>64x2_1 splitter): New define_split.
5676         (*avx512f_vextract<shuffletype>32x4_1 splitter): Likewise.
5677         (xop_pcmov_<mode><avxsizesuffix>): Use V_128_256 mode iterator instead
5678         of V.
5679         * config/i386/i386.c (ix86_expand_vector_set): Improve V32HImode and
5680         V64QImode expansion for !TARGET_AVX512BW && TARGET_AVX512F.
5681
5682 2018-03-31  Segher Boessenkool  <segher@kernel.crashing.org>
5683
5684         PR target/83315
5685         * config/rs6000/xmmintrin.h (_mm_set_ps, _mm_max_ps): Handle (quiet)
5686         NaN inputs correctly.
5687
5688 2018-03-30  Peter Bergner  <bergner@vnet.ibm.com>
5689
5690         PR target/80546
5691         * config/rs6000/vsx.md (??r): New mode attribute.
5692         (*vsx_mov<mode>_64bit): Use it.
5693         (*vsx_mov<mode>_32bit): Likewise.
5694
5695 2018-03-30  Martin Sebor  <msebor@redhat.com>
5696
5697         PR tree-optimization/84818
5698         * builtins.c (check_access): Use warning_n.
5699
5700 2018-03-30  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
5701
5702         PR target/83822
5703         * config/rs6000/rs6000-string.c (expand_compare_loop): Fix redundant
5704         condition.
5705         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Fix redundant
5706         condition.
5707
5708 2018-03-30  Julia Koval  <julia.koval@intel.com>
5709
5710         PR target/84413
5711         * x86-tune.def (movx, partial_reg_dependency): Enable for
5712         m_SKYLAKE_AVX512.
5713
5714 2018-03-29  Vladimir Makarov  <vmakarov@redhat.com>
5715
5716         PR inline-asm/84985
5717         * lra-constraints.c (process_alt_operands): Move setting
5718         this_alternative_matches below.
5719
5720 2018-03-29  Martin Liska  <mliska@suse.cz>
5721
5722         PR lto/84995.
5723         * doc/invoke.texi: Document how LTO works with debug info.
5724         Describe auto-load support of binutils.  Mention 'x86-64'
5725         as valid option value of -march option.
5726
5727 2018-03-29  Jakub Jelinek  <jakub@redhat.com>
5728
5729         * config/i386/sse.md (<avx512>_blendm<mode>): Use <sseintprefix>.
5730
5731         PR c/85094
5732         * fold-const.c (operand_equal_p): Handle DEBUG_BEGIN_STMT.
5733         For STATEMENT_LIST, pass down OEP_LEXICOGRAPHIC and maybe
5734         OEP_NO_HASH_CHECK for recursive call, to avoid exponential
5735         checking.
5736
5737 2018-03-28  Peter Bergner  <bergner@vnet.ibm.com>
5738
5739         PR target/84912
5740         * config/rs6000/rs6000.h (RS6000_BTM_POWERPC64): New define.
5741         (RS6000_BTM_COMMON): Add RS6000_BTM_POWERPC64.
5742         * config/rs6000/rs6000.c (rs6000_builtin_mask_calculate): Add support
5743         for RS6000_BTM_POWERPC64.
5744         (rs6000_invalid_builtin): Add handling for RS6000_BTM_POWERPC64
5745         (rs6000_builtin_mask_names): Add RS6000_BTM_POWERPC64.
5746         * config/rs6000/rs6000-builtin.def (BU_P7_POWERPC64_MISC_2): New macro
5747         definition.
5748         (DIVDE): Use it.
5749         (DIVDEU): Likewise.
5750
5751 2018-03-28 Carl Love  <cel@us.ibm.com>
5752
5753         Revert
5754         2017-09-27  Carl Love  <cel@us.ibm.com>
5755
5756         * config/rs6000/rs6000-builtin.def (BU_FP_1MISC_1): Add define macro.
5757         (FCTID, FCTIW): Add BU_FP_MISC_1 macro expansion for builtins.
5758         * config/rs6000/rs6000.md (lrintsfsi2): Add define_insn for the
5759         fctiw instruction.
5760
5761 2018-03-28  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
5762
5763         * config/rs6000/xmmintrin.h (_mm_max_pi16): Use __vector __bool
5764         instead of __vector bool.
5765         (_mm_max_pu8): Likewise.
5766         (_mm_min_pi16): Likewise.
5767
5768 2018-03-28  Peter Bergner  <bergner@vnet.ibm.com>
5769
5770         PR target/84912
5771         * config/rs6000/rs6000-builtin.def (DIVWEO): Delete macro expansion.
5772         (DIVWEUO): Likewise.
5773         (DIVDEO): Likewise.
5774         (DIVDEUO): Likewise.
5775         * config/rs6000/rs6000.c (builtin_function_type): Remove support for
5776         DIVWEUO and DIVDEUO.
5777         * config/rs6000/rs6000.md (UNSPEC_DIVEO, UNSPEC_DIVEUO): Delete unspecs.
5778         (UNSPEC_DIV_EXTEND): Remove deleted unspecs.
5779         (div_extend): Likewise.
5780         * doc/extend.texi (__builtin_divweo): Remove documentation for deleted
5781         builtin function.
5782         (__builtin_divweuo): Likewise.
5783         (__builtin_divdeo): Likewise.
5784         (__builtin_divdeuo): Likewise.
5785
5786 2018-03-28  Jakub Jelinek  <jakub@redhat.com>
5787
5788         PR target/85095
5789         * config/i386/i386.md (*add<mode>3_carry_0, *addsi3_carry_zext_0,
5790         *sub<mode>3_carry_0, *subsi3_carry_zext_0): New patterns.
5791
5792         PR tree-optimization/82004
5793         * gimple-match-head.c (optimize_pow_to_exp): New function.
5794         * match.pd (pow(C,x) -> exp(log(C)*x)): Wrap with #if GIMPLE.
5795         Don't fold to exp if optimize_pow_to_exp is false.
5796
5797 2018-03-28  Martin Liska  <mliska@suse.cz>
5798
5799         PR other/84819
5800         * calls.c (initialize_argument_information): Fix trailing space.
5801         * common.opt: Fix typo and provide better explanation for
5802         -fsanitize-coverage option.
5803         * config/i386/i386.opt: Fix typo.
5804
5805 2018-03-28  Jakub Jelinek  <jakub@redhat.com>
5806             Martin Liska  <mliska@suse.cz>
5807
5808         PR sanitizer/85081
5809         * gimplify.c (asan_poison_variable): Don't do the check for
5810         gimplify_omp_ctxp here.
5811         (gimplify_decl_expr): Do it here.
5812         (gimplify_target_expr): Likewise.
5813
5814 2018-03-28  Martin Liska  <mliska@suse.cz>
5815
5816         PR target/84988
5817         * config/i386/i386.c (ix86_function_arg_advance): Do not call
5818         chkp_type_bounds_count if MPX is not enabled.
5819
5820 2018-03-27  Chung-Ju Wu  <jasonwucj@gmail.com>
5821
5822         * config/nds32/nds32.h (BRANCH_COST): Adjust cost.
5823
5824 2018-03-27  Michael Meissner  <meissner@linux.vnet.ibm.com>
5825
5826         PR target/84914
5827         * config/rs6000/rs6000.c (create_complex_muldiv): New helper
5828         function to create the function decl for complex long double
5829         multiply and divide for -mabi=ieeelongdouble.
5830         (init_float128_ieee): Call it.
5831
5832 2018-03-27  H.J. Lu  <hongjiu.lu@intel.com>
5833
5834         PR target/85044
5835         * config/i386/i386.c (ix86_trampoline_init): Insert ENDBR for
5836         -fcf-protection=branch -mibt.
5837         * config/i386/i386.h (TRAMPOLINE_SIZE): Increased by 4 bytes.
5838
5839 2018-03-27  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
5840
5841         PR target/81863
5842         * config/arm/arm.c (arm_valid_symbolic_address): Handle
5843         arm_word_relocations.
5844
5845 2018-03-27  Cesar Philippidis  <cesar@codesourcery.com>
5846
5847         PR target/85056
5848         * config/nvptx/nvptx.c (nvptx_assemble_decl_begin): Add '[]' to
5849         extern array declarations.
5850
5851 2018-03-27  Richard Biener  <rguenther@suse.de>
5852
5853         PR middle-end/84067
5854         * match.pd ((A * C) +- (B * C) -> (A+-B) * C): Guard with
5855         explicit single_use checks.
5856
5857 2018-03-27  Richard Biener  <rguenther@suse.de>
5858
5859         PR tree-optimization/85082
5860         * tree-ssa-sccvn.c (vn_reference_lookup_or_insert_for_pieces):
5861         Valueize the VUSE.
5862
5863 2018-03-27  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
5864
5865         * config.gcc (aarch64*-*-linux*): New TARGET_DEFAULT_ASYNC_UNWIND_TABLES
5866         * common/config/aarch64/aarch64-common.c (aarch64_optimization_table[]):
5867         Turn on fasynchronous-unwind-tables and funwind-tables.
5868
5869 2018-03-26  Uros Bizjak  <ubizjak@gmail.com>
5870
5871         PR target/85073
5872         * config/i386/i386.md (*bmi_blsr_<mode>_cmp): New insn pattern.
5873         (*bmi_blsr_<mode>_ccz): Ditto.
5874
5875 2018-03-26  Tom de Vries  <tom@codesourcery.com>
5876
5877         PR tree-optimization/85063
5878         * omp-general.c (offloading_function_p): New function.  Factor out
5879         of ...
5880         * omp-offload.c (pass_omp_target_link::gate): ... here.
5881         * omp-general.h (offloading_function_p): Declare.
5882         * tree-switch-conversion.c (build_one_array): Mark CSWTCH.x variable
5883         with attribute omp declare target for offloading functions.
5884
5885 2018-03-24  Richard Sandiford  <richard.sandiford@linaro.org>
5886
5887         PR tree-optimization/84005
5888         * tree-data-ref.h (get_base_for_alignment): Declare.
5889         * tree-data-ref.c (get_base_for_alignment_1): New function.
5890         (get_base_for_alignment): Likewise.
5891         * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Use
5892         get_base_for_alignment to find a suitable base object, instead
5893         of always using drb->base_address.
5894
5895 2018-03-23  Jakub Jelinek  <jakub@redhat.com>
5896
5897         PR inline-asm/85022
5898         * emit-rtl.c (init_emit_regs): Indicate that VOIDmode MEMs don't have
5899         known size by default.
5900
5901 2018-03-23  Vladimir Makarov  <vmakarov@redhat.com>
5902
5903         PR inline-asm/85030
5904         * lra-constraints.c (process_alt_operands): Don't match BLKmode
5905         and non BLKmode operands.
5906
5907 2018-03-23  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
5908
5909         PR target/85026
5910         * config/arm/arm.md (unaligned_loadhis): Remove first alternative.
5911         Clean up attributes.
5912
5913 2018-03-23  Richard Biener  <rguenther@suse.de>
5914
5915         PR debug/85020
5916         * dwarf2out.c (rtl_for_decl_location): Do not generate RTL early when
5917         we are going to emit early debug for LTO.
5918
5919 2018-03-23  Jakub Jelinek  <jakub@redhat.com>
5920
5921         PR inline-asm/85034
5922         * function.c (match_asm_constraints_1): Don't optimize if input
5923         doesn't satisfy general_operand predicate for output's mode.
5924
5925         PR inline-asm/85022
5926         * alias.c (write_dependence_p): Don't require for x_canonicalized
5927         non-VOIDmode if x has VOIDmode.
5928
5929         PR sanitizer/85029
5930         * sanopt.c (maybe_optimize_ubsan_ptr_ifn): If DECL_REGISTER (base),
5931         just don't try to optimize it rather than assert it never happens.
5932
5933 2018-03-22  Kelvin Nilsen  <kelvin@gcc.gnu.org>
5934
5935         * config/rs6000/rs6000-builtin.def: Remove various BU_ALTIVEC_X
5936         macro expansions for definition of ST_INTERNAL_<mode> and
5937         LD_INTERNAL_<mode> builtins.
5938         * config/rs6000/rs6000-protos.h (rs6000_address_for_altivec):
5939         Remove prototype.
5940         * config/rs6000/rs6000.c (altivec_expand_ld_builtin): Delete this
5941         function.
5942         (altivec_expand_st_builtin): Likewise.
5943         (altivec_expand_builtin): Remove calls to deleted functions.
5944         (rs6000_address_for_altivec): Delete this function.
5945         * config/rs6000/vector.md: Remove expands for
5946         vector_altivec_load_<mode> and vector_altivec_store_<mode>.
5947
5948 2018-03-22  Sudakshina Das  <sudi.das@arm.com>
5949
5950         PR target/84826
5951         * config/arm/arm.h (machine_function): Add static_chain_stack_bytes.
5952         * config/arm/arm.c (arm_compute_static_chain_stack_bytes): Avoid
5953         re-computing once computed.
5954         (arm_expand_prologue): Compute machine->static_chain_stack_bytes.
5955         (arm_init_machine_status): Initialize
5956         machine->static_chain_stack_bytes.
5957
5958 2018-03-22  Kelvin Nilsen  <kelvin@gcc.gnu.org>
5959
5960         PR target/84760
5961         * doc/extend.texi: Add four new prototypes for vec_ld.
5962         * config/rs6000/rs6000-builtin.def (LVX_V1TI): Reorder symbol
5963         definitions for more logical presentation.
5964         * config/rs6000/rs6000-c.c: (altivec_overloaded_builtins): Add
5965         entries for V1TI variants of __builtin_altivec_ld builtin.
5966         * config/rs6000/rs6000.c: (altivec_expand_lv_builtin): Add test and
5967         handling of V1TI variant of LVX icode pattern.
5968         (altivec_expand_builtin): Add case for ALTIVEC_BUILTIN_LVX_V1TI.
5969         (rs6000_gimple_fold_builtin): Likewise.
5970         (altivec_init_builtins): Add code to define
5971         __builtin_altivec_lvx_v1ti function.
5972
5973 2018-03-22  Jakub Jelinek  <jakub@redhat.com>
5974
5975         PR inline-asm/84941
5976         * function.c (match_asm_constraints_1): Don't do the optimization
5977         if input isn't a REG, SUBREG, MEM or constant.
5978
5979 2018-03-22  Tom de Vries  <tom@codesourcery.com>
5980
5981         PR tree-optimization/84956
5982         * tree-ssa-tail-merge.c (find_clusters_1): Skip bbs with
5983         bb_has_abnormal_pred.
5984
5985 2018-03-22  Jakub Jelinek  <jakub@redhat.com>
5986
5987         PR sanitizer/85018
5988         * dwarf2asm.c (dw2_output_indirect_constant_1): Set
5989         DECL_INITIAL (decl) to decl at the end.
5990         * varasm.c (use_blocks_for_decl_p): Revert the 2018-03-20 change,
5991         adjust the comment.
5992
5993 2018-03-21  Joseph Myers  <joseph@codesourcery.com>
5994
5995         * doc/extend.texi (__builtin_tgmath): Document when complex
5996         integer types are treated as _Complex _Float64.
5997
5998 2018-03-21  Tom de Vries  <tom@codesourcery.com>
5999
6000         * doc/extend.texi (__builtin_extend_pointer): Remove pasto.
6001
6002 2018-03-21  Jakub Jelinek  <jakub@redhat.com>
6003
6004         PR tree-optimization/84960
6005         * tree-cfg.c (remove_bb): Don't move forced labels into bb->prev_bb
6006         if it is ENTRY block, move them into single succ of ENTRY in that case.
6007
6008 2018-03-21  Richard Sandiford  <richard.sandiford@linaro.org>
6009
6010         PR tree-optimization/84811
6011         * poly-int.h (poly_span_traits): Remove the T3 parameter and
6012         promote HOST_WIDE_INT T2 - T1 results to unsigned HOST_WIDE_INT.
6013         (maybe_in_range_p, known_in_range_p, ranges_known_overlap_p):
6014         (known_subrange_p): Update accordingly.  Cast each value involved
6015         in the size comparison, rather than casting the result of the
6016         subtraction.
6017
6018 2018-03-21  Jakub Jelinek  <jakub@redhat.com>
6019
6020         PR tree-optimization/84982
6021         * gimple-ssa-store-merging.c (invert_op): Handle boolean inversion
6022         by flipping the least significant bit rather than all bits from
6023         bitpos to bitpos + bitsize - 1.
6024
6025 2018-03-21  Nathan Sidwell  <nathan@acm.org>
6026
6027         * doc/extend.texi (Deprecated Features): Remove mention of
6028         long-deleted deprecations.
6029
6030 2018-03-21  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
6031
6032         PR jit/84288
6033         * configure.ac (gcc_cv_ld_soname) <*-*-solaris2*>: Set.
6034         * configure: Regenerate.
6035
6036 2018-03-21  Tom de Vries  <tom@codesourcery.com>
6037
6038         PR tree-optimization/83126
6039         * tree-parloops.c (num_phis): New function.
6040         (gen_parallel_loop): Detect and handle canonicalize_loop_ivs failure.
6041
6042 2018-03-21  Nathan Sidwell  <nathan@acm.org>
6043
6044         * doc/extend.texi (Deprecated Features): Update deprecated flags,
6045         mention anon-struct/union members and trailing attributes.
6046
6047 2018-03-21  Bin Cheng  <bin.cheng@arm.com>
6048
6049         PR tree-optimization/84969
6050         * tree-loop-distribution.c (fuse_memset_builtins): Don't reorder
6051         builtin memset partitions if they set different rhs values.
6052
6053 2018-03-21  Jakub Jelinek  <jakub@redhat.com>
6054
6055         PR rtl-optimization/84989
6056         * simplify-rtx.c (simplify_unary_operation_1): Don't try to simplify
6057         VEC_DUPLICATE with scalar result mode.
6058
6059 2018-03-21  Martin Liska  <mliska@suse.cz>
6060
6061         PR ipa/84963
6062         * ipa-icf.c (sem_item_optimizer::fixup_points_to_sets): Remove
6063         not intended return statement.
6064
6065 2018-03-21  Martin Liska  <mliska@suse.cz>
6066
6067         PR target/84988
6068         * tree-chkp.c (CHKP_ARRAY_MAX_CHECK_STEPS): Define a new macro.
6069         (chkp_find_bound_slots_1): Limit number of iterations.
6070
6071 2018-03-20  David H. Gutteridge  <dhgutteridge@sympatico.ca>
6072
6073         PR target/84838
6074         * Minor grammar fixes for x86 options.
6075
6076 2018-03-20  Jakub Jelinek  <jakub@redhat.com>
6077
6078         PR debug/84875
6079         * dce.c (delete_unmarked_insns): Don't remove frame related noop moves
6080         holding REG_CFA_RESTORE notes, instead turn them into a USE.
6081
6082 2018-03-20  Peter Bergner  <bergner@vnet.ibm.com>
6083
6084         PR target/83789
6085         * config/rs6000/altivec.md (altivec_lvx_<mode>_2op): Delete define_insn.
6086         (altivec_lvx_<mode>_1op): Likewise.
6087         (altivec_stvx_<mode>_2op): Likewise.
6088         (altivec_stvx_<mode>_1op): Likewise.
6089         (altivec_lvx_<VM2:mode>): New define_expand.
6090         (altivec_stvx_<VM2:mode>): Likewise.
6091         (altivec_lvx_<VM2:mode>_2op_<P:mptrsize>): New define_insn.
6092         (altivec_lvx_<VM2:mode>_1op_<P:mptrsize>): Likewise.
6093         (altivec_stvx_<VM2:mode>_2op_<P:mptrsize>): Likewise.
6094         (altivec_stvx_<VM2:mode>_1op_<P:mptrsize>): Likewise.
6095         * config/rs6000/rs6000-p8swap.c (rs6000_gen_stvx): Use new expanders.
6096         (rs6000_gen_lvx): Likewise.
6097         * config/rs6000/rs6000.c (altivec_expand_lv_builtin): Likewise.
6098         (altivec_expand_stv_builtin): Likewise.
6099         (altivec_expand_builtin): Likewise.
6100         * config/rs6000/vector.md: Likewise.
6101
6102 2018-03-20  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
6103
6104         PR target/82518
6105         * config/arm/arm.c (arm_array_mode_supported_p): Return false for
6106         BYTES_BIG_ENDIAN.
6107
6108 2018-03-20  Richard Biener  <rguenther@suse.de>
6109
6110         PR target/84986
6111         * config/i386/i386.c (ix86_add_stmt_cost): Only cost
6112         sign-conversions as zero, fall back to standard scalar_stmt
6113         cost for the rest.
6114
6115 2018-03-20  Martin Liska  <mliska@suse.cz>
6116
6117         PR ipa/84825
6118         * predict.c (rebuild_frequencies): Handle case when we have
6119         PROFILE_ABSENT, but flag_guess_branch_prob is false.
6120
6121 2018-03-20  Jakub Jelinek  <jakub@redhat.com>
6122
6123         PR target/84990
6124         * dwarf2asm.c (dw2_output_indirect_constant_1): Temporarily turn off
6125         flag_section_anchors.
6126         * varasm.c (use_blocks_for_decl_p): Remove hack for
6127         dw2_force_const_mem.
6128
6129         PR target/84845
6130         * config/aarch64/aarch64.md (*aarch64_reg_<mode>3_neg_mask2): Rename
6131         to ...
6132         (*aarch64_<optab>_reg_<mode>3_neg_mask2): ... this.  If pseudos can't
6133         be created, use lowpart_subreg of operands[0] rather than operands[0]
6134         itself.
6135         (*aarch64_reg_<mode>3_minus_mask): Rename to ...
6136         (*aarch64_ashl_reg_<mode>3_minus_mask): ... this.
6137         (*aarch64_<optab>_reg_di3_mask2): Use const_int_operand predicate
6138         and n constraint instead of aarch64_shift_imm_di and Usd.
6139         (*aarch64_reg_<optab>_minus<mode>3): Rename to ...
6140         (*aarch64_<optab>_reg_minus<mode>3): ... this.
6141
6142 2018-03-20  Sudakshina Das  <sudi.das@arm.com>
6143
6144         PR target/82989
6145         * config/arm/neon.md (ashldi3_neon): Update ?s for constraints
6146         to favor GPR over NEON registers.
6147         (<shift>di3_neon): Likewise.
6148
6149 2018-03-20  Tom de Vries  <tom@codesourcery.com>
6150
6151         PR target/84952
6152         * config/nvptx/nvptx.c (nvptx_single): Don't neuter bar.sync.
6153         (nvptx_process_pars): Emit bar.sync asap and alap.
6154
6155 2018-03-20  Tom de Vries  <tom@codesourcery.com>
6156
6157         PR target/84954
6158         * config/nvptx/nvptx.c (prevent_branch_around_nothing): Also update
6159         seen_label if seen_label is already set.
6160
6161 2018-03-20  Jakub Jelinek  <jakub@redhat.com>
6162
6163         PR target/84945
6164         * config/i386/i386.c (fold_builtin_cpu): For features above 31
6165         use __cpu_features2 variable instead of __cpu_model.__cpu_features[0].
6166         Use 1U instead of 1.  Formatting fixes.
6167
6168         PR c/84953
6169         * builtins.c (fold_builtin_strpbrk): For strpbrk(x, "") use type
6170         instead of TREE_TYPE (s1) for the return value.
6171
6172 2018-03-19  Jakub Jelinek  <jakub@redhat.com>
6173
6174         PR tree-optimization/84946
6175         * gimple-ssa-store-merging.c (mem_valid_for_store_merging): Compute
6176         bitsize + bitsize in poly_uint64 rather than poly_int64.
6177
6178         PR sanitizer/78651
6179         * dwarf2asm.c: Include fold-const.c.
6180         (dw2_output_indirect_constant_1): Set DECL_INITIAL (decl) to ADDR_EXPR
6181         of decl rather than decl itself.
6182
6183         PR rtl-optimization/84643
6184         * memmodel.h (enum memmodel): Add MEMMODEL_MAX enumerator.
6185
6186 2018-03-19  Maxim Ostapenko  <m.ostapenko@samsung.com>
6187
6188         PR sanitizer/78651
6189         * dwarf2asm.c (dw2_output_indirect_constant_1): Disable ASan before
6190         calling assemble_variable.
6191
6192 2018-03-19  Sudakshina Das  <sudi.das@arm.com>
6193
6194         PR target/81647
6195         * config/aarch64/aarch64-simd.md (vec_cmp<mode><v_int_equiv>): Modify
6196         instructions for UNLT, UNLE, UNGT, UNGE, UNEQ, UNORDERED and ORDERED.
6197
6198 2018-03-19  Jim Wilson  <jimw@sifive.com>
6199
6200         PR bootstrap/84856
6201         * config/riscv/riscv.c (riscv_function_arg_boundary): Use
6202         PREFERRED_STACK_BOUNDARY instead of STACK_BOUNDARY.
6203         (riscv_first_stack_step): Likewise.
6204         (riscv_option_override): Use STACK_BOUNDARY instead of
6205         MIN_STACK_BOUNDARY.
6206         * config/riscv/riscv.h (STACK_BOUNDARY): Renamed from
6207         MIN_STACK_BOUNDARY.
6208         (BIGGEST_ALIGNMENT): Set to 128.
6209         (PREFERRED_STACK_BOUNDARY): Renamed from STACK_BOUNDARY.
6210         (RISCV_STACK_ALIGN): Use PREFERRED_STACK_BOUNDARY instead of
6211         STACK_BOUNDARY.
6212
6213 2018-03-19  Richard Biener  <rguenther@suse.de>
6214
6215         PR tree-optimization/84933
6216         * tree-vrp.c (set_and_canonicalize_value_range): Treat out-of-bound
6217         values as -INF/INF when canonicalizing an ANTI_RANGE to a RANGE.
6218
6219 2018-03-19  Richard Biener  <rguenther@suse.de>
6220
6221         PR tree-optimization/84859
6222         * tree-ssa-phiopt.c (single_trailing_store_in_bb): New function.
6223         (cond_if_else_store_replacement): Perform sinking operation on
6224         single-store BBs regardless of MAX_STORES_TO_SINK setting.
6225         Generalize what a BB with a single eligible store is.
6226
6227 2018-03-19  Richard Biener  <rguenther@suse.de>
6228
6229         PR tree-optimization/84929
6230         * tree-data-ref.c (analyze_siv_subscript_cst_affine): Guard
6231         chrec_is_positive against non-chrec arg.
6232
6233 2018-03-19  Tamar Christina  <tamar.christina@arm.com>
6234
6235         PR target/84711
6236         * config/arm/arm.c (arm_can_change_mode_class): revert r258554.
6237
6238 2018-03-18  Martin Liska  <mliska@suse.cz>
6239
6240         PR rtl-optimization/84635
6241         * regrename.c (build_def_use): Use matches_mode only when
6242         matches >= 0.
6243
6244 2018-03-18  Richard Sandiford  <richard.sandiford@linaro.org>
6245
6246         PR tree-optimization/84913
6247         * tree-vect-loop.c (vectorizable_reduction): Don't try to
6248         vectorize chains of COND_EXPRs.
6249
6250 2018-03-18  Chung-Ju Wu  <jasonwucj@gmail.com>
6251
6252         * config/nds32/nds32.h (MAX_REGS_PER_ADDRESS): Fix the value.
6253
6254 2018-03-18  Chung-Ju Wu  <jasonwucj@gmail.com>
6255
6256         * config/nds32/nds32.h (LOGICAL_OP_NON_SHORT_CIRCUIT): Define.
6257
6258 2018-03-18  Chung-Ju Wu  <jasonwucj@gmail.com>
6259
6260         * config/nds32/nds32.h (CLZ_DEFINED_VALUE_AT_ZERO): Define.
6261
6262 2018-03-17  Chung-Ju Wu  <jasonwucj@gmail.com>
6263             Kito Cheng  <kito.cheng@gmail.com>
6264
6265         * config/nds32/nds32-protos.h (nds32_adjust_reg_alloc_order): Declare.
6266         * config/nds32/nds32.c (nds32_reg_alloc_order_for_speed): New array.
6267         (nds32_adjust_reg_alloc_order): New function.
6268         * config/nds32/nds32.h (ADJUST_REG_ALLOC_ORDER): Define.
6269
6270 2018-03-17  Kito Cheng  <kito.cheng@gmail.com>
6271
6272         * config/nds32/nds32.c (nds32_asm_output_mi_thunk,
6273         nds32_print_operand, nds32_print_operand_address): Use
6274         HOST_WIDE_INT_PRINT_DEC instead.
6275
6276 2018-03-17  Chung-Ju Wu  <jasonwucj@gmail.com>
6277
6278         * config/nds32/nds32.c (nds32_register_priority): Modify cost.
6279
6280 2018-03-17  Jakub Jelinek  <jakub@redhat.com>
6281
6282         PR target/84902
6283         * config/i386/i386.c (initial_ix86_tune_features,
6284         initial_ix86_arch_features): Use unsigned HOST_WIDE_INT rather than
6285         unsigned long long.
6286         (set_ix86_tune_features): Change ix86_tune_mask from unsigned int
6287         to unsigned HOST_WIDE_INT, initialize to HOST_WIDE_INT_1U << ix86_tune
6288         rather than 1u << ix86_tune.  Formatting fix.
6289         (ix86_option_override_internal): Change ix86_arch_mask from
6290         unsigned int to unsigned HOST_WIDE_INT, initialize to
6291         HOST_WIDE_INT_1U << ix86_arch rather than 1u << ix86_arch.
6292         (ix86_function_specific_restore): Likewise.
6293
6294 2018-03-16  Jakub Jelinek  <jakub@redhat.com>
6295
6296         PR target/84899
6297         * postreload.c (reload_combine_recognize_pattern): Perform
6298         INTVAL addition in unsigned HOST_WIDE_INT type to avoid UB and
6299         truncate_int_for_mode the result for the destination's mode.
6300
6301         PR c/84909
6302         * hsa-gen.c (mem_type_for_type): Fix comment typo.
6303         * tree-vect-loop-manip.c (vect_create_cond_for_niters_checks):
6304         Likewise.
6305         * gimple-ssa-warn-restrict.c (builtin_memref::set_base_and_offset):
6306         Likewise.
6307
6308 2018-03-16  Vladimir Makarov  <vmakarov@redhat.com>
6309
6310         PR target/84876
6311         * lra-assigns.c (lra_split_hard_reg_for): Don't use
6312         regno_allocno_class_array and sorted_pseudos.
6313         * lra-constraints.c (spill_hard_reg_in_range): Ignore hard regs in
6314         insns where regno is used.
6315
6316 2018-03-16  Martin Liska  <mliska@suse.cz>
6317
6318         PR ipa/84833
6319         * multiple_target.c (create_dispatcher_calls): Redirect
6320         reference in the symbol table.
6321
6322 2018-03-16  Martin Liska  <mliska@suse.cz>
6323
6324         PR ipa/84722
6325         * multiple_target.c (create_dispatcher_calls): Redirect also
6326         an alias.
6327
6328 2018-03-16  Jakub Jelinek  <jakub@redhat.com>
6329
6330         PR c++/79937
6331         PR c++/82410
6332         * tree.h (TARGET_EXPR_NO_ELIDE): Define.
6333         * gimplify.c (gimplify_modify_expr_rhs): Don't elide TARGET_EXPRs with
6334         TARGET_EXPR_NO_ELIDE flag set unless *expr_p is INIT_EXPR.
6335
6336 2018-03-16  Julia Koval  <julia.koval@intel.com>
6337
6338         * doc/invoke.texi (Skylake Server): Add CLWB.
6339         Cannonlake): Remove CLWB.
6340
6341 2018-03-16  Jakub Jelinek  <jakub@redhat.com>
6342
6343         PR tree-optimization/84841
6344         * tree-ssa-reassoc.c (INTEGER_CONST_TYPE): Change to 1 << 4 from
6345         1 << 3.
6346         (FLOAT_ONE_CONST_TYPE): Define.
6347         (constant_type): Return FLOAT_ONE_CONST_TYPE for -1.0 and 1.0.
6348         (sort_by_operand_rank): Put entries with higher constant_type last
6349         rather than first to match comments.
6350
6351 2018-03-15  Sandra Loosemore  <sandra@codesourcery.com>
6352
6353         * config/nios2/nios2.md (movsi_internal): Fix thinko in
6354         split predicate.
6355
6356 2018-03-15  Jakub Jelinek  <jakub@redhat.com>
6357
6358         PR c++/79085
6359         * calls.c (expand_call): For TREE_ADDRESSABLE rettype ignore alignment
6360         check and use address of target always.
6361
6362 2018-03-15  H.J. Lu  <hongjiu.lu@intel.com>
6363
6364         PR target/84574
6365         * config/i386/i386.c (indirect_thunk_needed): Update comments.
6366         (indirect_thunk_bnd_needed): Likewise.
6367         (indirect_thunks_used): Likewise.
6368         (indirect_thunks_bnd_used): Likewise.
6369         (indirect_return_needed): New.
6370         (indirect_return_bnd_needed): Likewise.
6371         (output_indirect_thunk_function): Add a bool argument for
6372         function return.
6373         (output_indirect_thunk_function): Don't generate alias for
6374         function return thunk.
6375         (ix86_code_end): Call output_indirect_thunk_function to generate
6376         function return thunks.
6377         (ix86_output_function_return): Set indirect_return_bnd_needed
6378         and indirect_return_needed instead of indirect_thunk_bnd_needed
6379         and indirect_thunk_needed.
6380
6381 2018-03-15  Olga Makhotina  <olga.makhotina@intel.com>
6382
6383         * config/i386/sgxintrin.h (_enclv_u32): New intrinsic.
6384         (__enclv_bc, __enclv_cd, __enclv_generic): New definitions.
6385         (ERDINFO, ETRACKC, ELDBC, ELDUC): New leaves.
6386
6387 2018-03-15  David Malcolm  <dmalcolm@redhat.com>
6388             Paul Hua <paul.hua.gm@gmail.com>
6389
6390         PR c/84852
6391         * gcc.dg/fixits-pr84852-1.c: Fix filename in dg-regexp.
6392
6393 2018-03-15  Segher Boessenkool  <segher@kernel.crashing.org>
6394
6395         * config/rs6000/rs6000.c (abi_v4_pass_in_fpr): Add back the
6396         TARGET_DOUBLE_FLOAT and TARGET_SINGLE_FLOAT conditions on the DFmode
6397         resp. SFmode cases.
6398
6399 2018-03-15  Tamar Christina  <tamar.christina@arm.com>
6400
6401         PR target/84711
6402         * config/arm/arm.c (arm_can_change_mode_class): Use GET_MODE_UNIT_SIZE
6403         instead of GET_MODE_SIZE when comparing Units.
6404
6405 2018-03-15  Vladimir Mezentsev  <vladimir.mezentsev@oracle.com>
6406
6407         PR target/68256
6408         * varasm.c (hash_section): Return an unchangeble hash value
6409         * config/aarch64/aarch64.c (aarch64_use_blocks_for_constant_p):
6410         Return !aarch64_can_use_per_function_literal_pools_p ().
6411
6412 2018-03-15  Jakub Jelinek  <jakub@redhat.com>
6413
6414         PR target/84860
6415         * optabs.c (emit_conditional_move): Pass address of cmode's copy
6416         rather than address of cmode as last argument to prepare_cmp_insn.
6417
6418 2018-03-15  Julia Koval  <julia.koval@intel.com>
6419
6420         * config/i386/i386.c (F_AVX512VBMI2, F_GFNI, F_VPCLMULQDQ,
6421         F_AVX512VNNI, F_AVX512BITALG): New.
6422
6423 2018-03-14  John David Anglin  <danglin@gcc.gnu.org>
6424
6425         PR target/83451
6426         * config/pa/pa.c (pa_emit_move_sequence):  Always emit secondary reload
6427         insn for floating-point loads and stores.
6428
6429 2018-03-14  Carl Love  <cel@us.ibm.com>
6430
6431         * config/rs6000/rs6000-c.c: Add macro definitions for
6432         ALTIVEC_BUILTIN_VEC_PERMXOR.
6433         * config/rs6000/rs6000.h: Add #define for vec_permxor builtin.
6434         * config/rs6000/rs6000-builtin.def: Add macro expansions for VPERMXOR.
6435         * config/rs6000/altivec.md (altivec_vpermxor): New define expand.
6436         * config/rs6000/rs6000-p8swap.c (rtx_is_swappable_p): Add case
6437         UNSPEC_VPERMXOR.
6438         * config/doc/extend.texi: Add prototypes for vec_permxor.
6439
6440 2018-03-14  David Malcolm  <dmalcolm@redhat.com>
6441
6442         PR c/84852
6443         * diagnostic-show-locus.c (class layout_point): Convert m_line
6444         from int to linenum_type.
6445         (line_span::comparator): Use linenum "compare" function when
6446         comparing line numbers.
6447         (test_line_span): New function.
6448         (layout_range::contains_point): Convert param "row" from int to
6449         linenum_type.
6450         (layout_range::intersects_line_p): Likewise.
6451         (layout::will_show_line_p): Likewise.
6452         (layout::print_source_line): Likewise.
6453         (layout::should_print_annotation_line_p): Likewise.
6454         (layout::print_annotation_line): Likewise.
6455         (layout::print_leading_fixits): Likewise.
6456         (layout::annotation_line_showed_range_p): Likewise.
6457         (struct line_corrections): Likewise for field m_row.
6458         (line_corrections::line_corrections): Likewise for param "row".
6459         (layout::print_trailing_fixits): Likewise.
6460         (layout::get_state_at_point): Likewise.
6461         (layout::get_x_bound_for_row): Likewise.
6462         (layout::print_line): Likewise.
6463         (diagnostic_show_locus): Likewise for locals "last_line" and "row".
6464         (selftest::diagnostic_show_locus_c_tests): Call test_line_span.
6465         * input.c (selftest::test_linenum_comparisons): New function.
6466         (selftest::input_c_tests): Call it.
6467         * selftest.c (selftest::test_assertions): Test ASSERT_GT,
6468         ASSERT_GT_AT, ASSERT_LT, and ASSERT_LT_AT.
6469         * selftest.h (ASSERT_GT): New macro.
6470         (ASSERT_GT_AT): New macro.
6471         (ASSERT_LT): New macro.
6472         (ASSERT_LT_AT): New macro.
6473
6474 2018-03-14  Segher Boessenkool  <segher@kernel.crashing.org>
6475
6476         PR rtl-optimization/84780
6477         * combine.c (distribute_links): Don't make a link based on pc_rtx.
6478
6479 2018-03-14  Martin Liska  <mliska@suse.cz>
6480
6481         * tree.c (record_node_allocation_statistics): Use
6482         get_stats_node_kind.
6483         (get_stats_node_kind): New function extracted from
6484         record_node_allocation_statistics.
6485         (free_node): Use get_stats_node_kind.
6486
6487 2018-03-14  Richard Biener  <rguenther@suse.de>
6488
6489         * tree-ssa-pre.c (compute_antic_aux): Remove code that asserts
6490         that the value-set of ANTIC_IN doesn't grow.
6491
6492         Revert
6493         * tree-ssa-pre.c (struct bb_bitmap_sets): Add visited_with_visited_succs
6494         member.
6495         (BB_VISITED_WITH_VISITED_SUCCS): New define.
6496         (compute_antic): Initialize BB_VISITED_WITH_VISITED_SUCCS.
6497
6498 2018-03-14  Julia Koval  <julia.koval@intel.com>
6499
6500         * config.gcc (icelake-client, icelake-server): New.
6501         (icelake): Remove.
6502         * config/i386/i386.c (initial_ix86_tune_features): Extend to 64 bit.
6503         (initial_ix86_arch_features): Ditto.
6504         (PTA_SKYLAKE): Add SGX.
6505         (PTA_ICELAKE): Remove.
6506         (PTA_ICELAKE_CLIENT): New.
6507         (PTA_ICELAKE_SERVER): New.
6508         (ix86_option_override_internal): Split up icelake on icelake client and
6509         icelake server.
6510         (get_builtin_code_for_version): Ditto.
6511         (fold_builtin_cpu): Ditto.
6512         * config/i386/driver-i386.c (config/i386/driver-i386.c): Ditto.
6513         * config/i386/i386-c.c (ix86_target_macros_internal): Ditto
6514         * config/i386/i386.h (processor_type): Ditto.
6515         * doc/invoke.texi: Ditto.
6516
6517 2018-03-14  Jakub Jelinek  <jakub@redhat.com>
6518
6519         PR sanitizer/83392
6520         * sanopt.c (maybe_optimize_ubsan_ptr_ifn): Handle also
6521         INTEGER_CST offset, add it together with bitpos / 8 and
6522         sign extend based on POINTER_SIZE.
6523
6524         PR target/84844
6525         Revert
6526         2017-04-20  Uros Bizjak  <ubizjak@gmail.com>
6527
6528         PR target/78090
6529         * config/i386/constraints.md (Yc): New register constraint.
6530         * config/i386/i386.md (*float<SWI48:mode><MODEF:mode>2_mixed):
6531         Use Yc constraint for alternative 2 of operand 0.  Remove
6532         preferred_for_speed attribute.
6533
6534 2018-03-14  Richard Biener  <rguenther@suse.de>
6535
6536         PR tree-optimization/84830
6537         * tree-ssa-pre.c (compute_antic_aux): Intersect the new ANTIC_IN
6538         with the old one to avoid oscillations.
6539
6540 2018-03-13  Vladimir Makarov  <vmakarov@redhat.com>
6541
6542         PR target/83712
6543         * lra-assigns.c (find_all_spills_for): Ignore uninteresting
6544         pseudos.
6545         (assign_by_spills): Return a flag of reload assignment failure.
6546         Do not process the reload assignment failures.  Do not spill other
6547         reload pseudos if they has the same reg class.  Update n if
6548         necessary.
6549         (lra_assign): Add a return arg.  Set up from the result of
6550         assign_by_spills call.
6551         (find_reload_regno_insns, lra_split_hard_reg_for): New functions.
6552         * lra-constraints.c (split_reg): Add a new arg.  Use it instead of
6553         usage_insns if it is not NULL.
6554         (spill_hard_reg_in_range): New function.
6555         (split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
6556         * lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
6557         function prototypes.
6558         (lra_assign): Change prototype.
6559         * lra.c (lra): Add code to deal with fails by splitting hard reg
6560         live ranges.
6561
6562 2018-03-01  Palmer Dabbelt  <palmer@sifive.com>
6563
6564         * config/riscv/riscv.opt (mrelax): New option.
6565         * config/riscv/riscv.c (riscv_file_start): Emit ".option
6566         "norelax" when riscv_mrelax is disabled.
6567         * doc/invoke.texi (RISC-V): Document "-mrelax" and "-mno-relax".
6568
6569 2018-03-13  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
6570
6571         PR target/84743
6572         * config/rs6000/rs6000.c (rs6000_reassociation_width): Disable parallel
6573         reassociation for int modes.
6574
6575 2018-03-13  Richard Sandiford  <richard.sandiford@linaro.org>
6576
6577         * tree-vect-loop-manip.c (vect_maybe_permute_loop_masks):
6578         Reverse the choice between VEC_UNPACK_LO_EXPR and VEC_UNPACK_HI_EXPR
6579         for big-endian.
6580         * config/aarch64/iterators.md (hi_lanes_optab): New int attribute.
6581         * config/aarch64/aarch64-sve.md
6582         (*aarch64_sve_<perm_insn><perm_hilo><mode>): Rename to...
6583         (aarch64_sve_<perm_insn><perm_hilo><mode>): ...this.
6584         (*extend<mode><Vwide>2): Rename to...
6585         (aarch64_sve_extend<mode><Vwide>2): ...this.
6586         (vec_unpack<su>_<perm_hilo>_<mode>): Turn into a define_expand,
6587         renaming the old pattern to...
6588         (aarch64_sve_punpk<perm_hilo>_<mode>): ...this.  Only define
6589         unsigned packs.
6590         (vec_unpack<su>_<perm_hilo>_<SVE_BHSI:mode>): Turn into a
6591         define_expand, renaming the old pattern to...
6592         (aarch64_sve_<su>unpk<perm_hilo>_<SVE_BHSI:mode>): ...this.
6593         (*vec_unpacku_<perm_hilo>_<mode>_no_convert): Delete.
6594         (vec_unpacks_<perm_hilo>_<mode>): Take BYTES_BIG_ENDIAN into
6595         account when deciding which SVE instruction the optab should use.
6596         (vec_unpack<su_optab>_float_<perm_hilo>_vnx4si): Likewise.
6597
6598 2018-03-13  Richard Sandiford  <richard.sandiford@linaro.org>
6599
6600         * config/aarch64/aarch64.md (V4_REGNUM, V8_REGNUM, V12_REGNUM)
6601         (V20_REGNUM, V24_REGNUM, V28_REGNUM, P1_REGNUM, P2_REGNUM, P3_REGNUM)
6602         (P4_REGNUM, P5_REGNUM, P6_REGNUM, P8_REGNUM, P9_REGNUM, P10_REGNUM)
6603         (P11_REGNUM, P12_REGNUM, P13_REGNUM, P14_REGNUM): New define_constants.
6604         (tlsdesc_small_<mode>): Turn a define_expand and use
6605         tlsdesc_small_sve_<mode> for SVE.  Rename original define_insn to...
6606         (tlsdesc_small_advsimd_<mode>): ...this.
6607         (tlsdesc_small_sve_<mode>): New pattern.
6608
6609 2018-03-13  Richard Sandiford  <richard.sandiford@linaro.org>
6610
6611         * config/aarch64/iterators.md (UNSPEC_SMUL_HIGHPART)
6612         (UNSPEC_UMUL_HIGHPART): New constants.
6613         (MUL_HIGHPART): New int iteraor.
6614         (su): Handle UNSPEC_SMUL_HIGHPART and UNSPEC_UMUL_HIGHPART.
6615         * config/aarch64/aarch64-sve.md (<su>mul<mode>3_highpart): New
6616         define_expand.
6617         (*<su>mul<mode>3_highpart): New define_insn.
6618
6619 2018-03-13  Eric Botcazou  <ebotcazou@adacore.com>
6620
6621         PR lto/84805
6622         * ipa-devirt.c (odr_subtypes_equivalent_p): Do not get the ODR type of
6623         incomplete types.
6624
6625 2018-03-13  Martin Liska  <mliska@suse.cz>
6626
6627         PR ipa/84658.
6628         * (sem_item_optimizer::sem_item_optimizer): Initialize new
6629         vector.
6630         (sem_item_optimizer::~sem_item_optimizer): Release it.
6631         (sem_item_optimizer::merge_classes): Register variable aliases.
6632         (sem_item_optimizer::fixup_pt_set): New function.
6633         (sem_item_optimizer::fixup_points_to_sets): Likewise.
6634         * ipa-icf.h: Declare new variables and functions.
6635
6636 2018-03-13  Jakub Jelinek  <jakub@redhat.com>
6637
6638         PR middle-end/84834
6639         * match.pd ((A & C) != 0 ? D : 0): Use INTEGER_CST@2 instead of
6640         integer_pow2p@2 and test integer_pow2p in condition.
6641         (A < 0 ? C : 0): Similarly for @1.
6642
6643         PR middle-end/84831
6644         * stmt.c (parse_output_constraint): If the CONSTRAINT_LEN (*p, p)
6645         characters starting at p contain '\0' character, don't look beyond
6646         that.
6647
6648         PR target/84827
6649         * config/i386/i386.md (round<mode>2): For 387 fancy math, disable
6650         pattern if -ftrapping-math -fno-fp-int-builtin-inexact.
6651
6652         PR target/84828
6653         * reg-stack.c (change_stack): Change update_end var from int to
6654         rtx_insn *, if non-NULL don't update just BB_END (current_block), but
6655         also call set_block_for_insn on the newly added insns and rescan.
6656
6657         PR target/84786
6658         * config/i386/sse.md (sse2_loadhpd): Use Yv constraint rather than v
6659         on the last operand.
6660
6661         PR c++/84704
6662         * tree.c (stabilize_reference_1): Return save_expr (e) for
6663         STATEMENT_LIST even if it doesn't have side-effects.
6664
6665 2018-03-12  Jonathan Wakely  <jwakely@redhat.com>
6666
6667         * doc/invoke.texi (-mclflushopt): Fix spelling of option.
6668
6669 2018-03-12  Renlin Li  <renlin.li@arm.com>
6670
6671         * config/aarch64/aarch64.md (movhf_aarch64): Fix mode argument to
6672         aarch64_output_scalar_simd_mov_immediate.
6673
6674 2018-03-12  Martin Sebor  <msebor@redhat.com>
6675
6676         PR tree-optimization/83456
6677         * gimple-fold.c (gimple_fold_builtin_memory_op): Avoid warning
6678         for perfectly overlapping calls to memcpy.
6679         (gimple_fold_builtin_memory_chk): Same.
6680         (gimple_fold_builtin_strcpy): Handle no-warning.
6681         (gimple_fold_builtin_stxcpy_chk): Same.
6682         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Handle no-warning.
6683
6684 2018-03-12  Segher Boessenkool  <segher@kernel.crashing.org>
6685
6686         * config/rs6000/rs6000.c (abi_v4_pass_in_fpr): Add bool "named"
6687         parameter.  Use it for SFmode.
6688         (rs6000_function_arg_advance_1): Adjust.
6689         (rs6000_function_arg): Adjust.
6690         (rs6000_gimplify_va_arg): Pass false for that new parameter.
6691
6692 2018-03-12  Segher Boessenkool  <segher@kernel.crashing.org>
6693
6694         PR rtl-optimization/84169
6695         PR rtl-optimization/84780
6696         * combine.c (can_combine_p): Check for a 2-insn combination whether
6697         the destination register is used between the two insns, too.
6698
6699 2018-03-12  Richard Biener  <rguenther@suse.de>
6700
6701         PR tree-optimization/84803
6702         * tree-if-conv.c (ifcvt_memrefs_wont_trap): Don't do anything
6703         for refs DR analysis didn't process.
6704
6705 2018-03-12  Richard Biener  <rguenther@suse.de>
6706
6707         PR tree-optimization/84777
6708         * tree-ssa-loop-ch.c (should_duplicate_loop_header_p): For
6709         force-vectorize loops ignore whether we are optimizing for size.
6710
6711 2018-03-12  Chung-Ju Wu  <jasonwucj@gmail.com>
6712
6713         * config/nds32/nds32.c (nds32_md_asm_adjust): New function.
6714         (TARGET_MD_ASM_ADJUST): Define.
6715
6716 2018-03-12  Monk Chiang  <sh.chiang04@gmail.com>
6717             Kito Cheng  <kito.cheng@gmail.com>
6718             Chung-Ju Wu  <jasonwucj@gmail.com>
6719
6720         * config/nds32/nds32.c (nds32_compute_stack_frame,
6721         nds32_emit_stack_push_multiple, nds32_emit_stack_pop_multiple,
6722         nds32_emit_stack_v3push, nds32_emit_stack_v3pop,
6723         nds32_emit_adjust_frame, nds32_expand_prologue, nds32_expand_epilogue,
6724         nds32_expand_prologue_v3push, nds32_expand_epilogue_v3pop): Refine.
6725         * config/nds32/nds32.h (NDS32_FIRST_CALLEE_SAVE_GPR_REGNUM,
6726         NDS32_LAST_CALLEE_SAVE_GPR_REGNUM, NDS32_V3PUSH_AVAILABLE_P): New.
6727         * config/nds32/nds32.md (prologue, epilogue): Use macro
6728         NDS32_V3PUSH_AVAILABLE_P to do checking.
6729
6730 2018-03-11  Jakub Jelinek  <jakub@redhat.com>
6731
6732         PR debug/58150
6733         * dwarf2out.c (gen_enumeration_type_die): Don't guard adding
6734         DW_AT_declaration for ENUM_IS_OPAQUE on -gdwarf-4 or -gno-strict-dwarf,
6735         but on TYPE_SIZE.  Don't do anything for ENUM_IS_OPAQUE if not creating
6736         a new die.  Don't set TREE_ASM_WRITTEN if ENUM_IS_OPAQUE.  Guard
6737         addition of most attributes on !orig_type_die or the attribute not
6738         being present already.  Assert TYPE_VALUES is NULL for ENUM_IS_OPAQUE.
6739
6740 2018-03-11  Kito Cheng  <kito.cheng@gmail.com>
6741             Chung-Ju Wu  <jasonwucj@gmail.com>
6742
6743         * config/nds32/nds32.c (nds32_cpu_cpp_builtins): Modify to define
6744         __NDS32_VH__ macro.
6745         * config/nds32/nds32.opt (mvh): New option.
6746
6747 2018-03-11  Kito Cheng  <kito.cheng@gmail.com>
6748             Chung-Ju Wu  <jasonwucj@gmail.com>
6749
6750         * config/nds32/nds32-protos.h (nds32_cpu_cpp_builtins): Declare
6751         function.
6752         * config/nds32/nds32.c (nds32_cpu_cpp_builtins): New function.
6753         * config/nds32/nds32.h (TARGET_CPU_CPP_BUILTINS): Modify its
6754         definition.
6755
6756 2018-03-11  Kito Cheng  <kito.cheng@gmail.com>
6757             Chung-Ju Wu  <jasonwucj@gmail.com>
6758
6759         * config/nds32/nds32-memory-manipulation.c (nds32_expand_strlen): New
6760         function.
6761         * config/nds32/nds32-multiple.md (strlensi): New pattern.
6762         * config/nds32/nds32-protos.h (nds32_expand_strlen): Declare function.
6763
6764 2018-03-11  Monk Chiang  <sh.chiang04@gmail.com>
6765             Kito Cheng  <kito.cheng@gmail.com>
6766             Chung-Ju Wu  <jasonwucj@gmail.com>
6767
6768         * config/nds32/constants.md (unspec_element): Add UNSPEC_FFB,
6769         UNSPEC_FFMISM and UNSPEC_FLMISM.
6770         * config/nds32/nds32-intrinsic.c (bdesc_2arg): Add builtin description
6771         for ffb, ffmism and flmism.
6772         * config/nds32/nds32-intrinsic.md (unspec_ffb): Define new pattern.
6773         (unspec_ffmism): Ditto.
6774         (unspec_flmism): Ditto.
6775         (nds32_expand_builtin_impl): Check if string extension is available.
6776         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_FFB,
6777         NDS32_BUILTIN_FFMISM and NDS32_BUILTIN_FLMISM.
6778
6779 2018-03-10  Vladimir Makarov  <vmakarov@redhat.com>
6780
6781         Reverting patch:
6782         2018-03-09  Vladimir Makarov  <vmakarov@redhat.com>
6783
6784         PR target/83712
6785         * lra-assigns.c (assign_by_spills): Return a flag of reload
6786         assignment failure.  Do not process the reload assignment
6787         failures.  Do not spill other reload pseudos if they has the same
6788         reg class.
6789         (lra_assign): Add a return arg.  Set up from the result of
6790         assign_by_spills call.
6791         (find_reload_regno_insns, lra_split_hard_reg_for): New functions.
6792         * lra-constraints.c (split_reg): Add a new arg.  Use it instead of
6793         usage_insns if it is not NULL.
6794         (spill_hard_reg_in_range): New function.
6795         (split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
6796         * lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
6797         function prototypes.
6798         (lra_assign): Change prototype.
6799         * lra.c (lra): Add code to deal with fails by splitting hard reg
6800         live ranges.
6801
6802 2018-03-10  H.J. Lu  <hongjiu.lu@intel.com>
6803
6804         PR target/84807
6805         * config/i386/i386.opt: Replace Enforcment with Enforcement.
6806
6807 2018-03-10  Alexandre Oliva  <aoliva@redhat.com>
6808
6809         PR debug/84620
6810         * dwarf2out.h (dw_val_class): Add dw_val_class_symview.
6811         (dw_val_node): Add val_symbolic_view.
6812         * dwarf2out.c (dw_line_info_table): Add symviews_since_reset.
6813         (symview_upper_bound): New.
6814         (new_line_info_table): Initialize symviews_since_reset.
6815         (dwarf2out_source_line): Count symviews_since_reset and set
6816         symview_upper_bound.
6817         (dw_val_equal_p): Handle symview.
6818         (add_AT_symview): New.
6819         (print_dw_val): Handle symview.
6820         (attr_checksum, attr_checksum_ordered): Likewise.
6821         (same_dw_val_p, size_of_die): Likewise.
6822         (value_format, output_die): Likewise.
6823         (add_high_low_attributes): Use add_AT_symview for entry_view.
6824         (dwarf2out_finish): Reset symview_upper_bound, clear
6825         zero_view_p.
6826
6827 2018-03-09  Peter Bergner  <bergner@vnet.ibm.com>
6828
6829         PR target/83969
6830         * config/rs6000/rs6000.c (rs6000_offsettable_memref_p): New prototype.
6831         Add strict argument and use it.
6832         (rs6000_split_multireg_move): Update for new strict argument.
6833         (mem_operand_gpr): Disallow all non-offsettable addresses.
6834         * config/rs6000/rs6000.md (*movdi_internal64): Use YZ constraint.
6835
6836 2018-03-09  Jakub Jelinek  <jakub@redhat.com>
6837
6838         PR target/84772
6839         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Mark va_arg_tmp
6840         temporary TREE_ADDRESSABLE before gimplification of BUILT_IN_MEMCPY.
6841         * config/powerpcspe/powerpcspe.c (rs6000_gimplify_va_arg): Likewise.
6842
6843         PR c++/84767
6844         * tree-inline.c (copy_tree_body_r): For INDIRECT_REF of a remapped
6845         decl, use remap_type if we want to use the type.
6846
6847 2018-03-09  Martin Sebor  <msebor@redhat.com>
6848
6849         PR tree-optimization/84526
6850         * gimple-ssa-warn-restrict.c (builtin_memref::set_base_and_offset):
6851         Remove dead code.
6852         (builtin_access::generic_overlap): Be prepared to handle non-array
6853         base objects.
6854
6855 2018-03-09  Alexandre Oliva  <aoliva@redhat.com>
6856
6857         PR rtl-optimization/84682
6858         * lra-constraints.c (process_address_1): Check is_address flag
6859         for address constraints.
6860         (process_alt_operands): Likewise.
6861         * lra.c (lra_set_insn_recog_data): Pass asm operand locs to
6862         preprocess_constraints.
6863         * recog.h (preprocess_constraints): Add oploc parameter.
6864         Adjust callers.
6865         * recog.c (preprocess_constraints): Test address_operand for
6866         CT_ADDRESS constraints.
6867
6868 2018-03-09  Vladimir Makarov  <vmakarov@redhat.com>
6869
6870         PR target/83712
6871         * lra-assigns.c (assign_by_spills): Return a flag of reload
6872         assignment failure.  Do not process the reload assignment
6873         failures.  Do not spill other reload pseudos if they has the same
6874         reg class.
6875         (lra_assign): Add a return arg.  Set up from the result of
6876         assign_by_spills call.
6877         (find_reload_regno_insns, lra_split_hard_reg_for): New functions.
6878         * lra-constraints.c (split_reg): Add a new arg.  Use it instead of
6879         usage_insns if it is not NULL.
6880         (spill_hard_reg_in_range): New function.
6881         (split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
6882         * lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
6883         function prototypes.
6884         (lra_assign): Change prototype.
6885         * lra.c (lra): Add code to deal with fails by splitting hard reg
6886         live ranges.
6887
6888 2018-03-09  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
6889
6890         PR target/83193
6891         * common/config/arm/arm-common.c (arm_parse_arch_option_name):
6892         Accept complain bool parameter.  Only emit errors if it is true.
6893         (arm_parse_cpu_option_name): Likewise.
6894         (arm_target_thumb_only): Adjust callers of the above.
6895         * config/arm/arm-protos.h (arm_parse_cpu_option_name): Adjust
6896         prototype to take a default true bool parameter.
6897         (arm_parse_arch_option_name): Likewise.
6898
6899 2018-03-09  David Malcolm  <dmalcolm@redhat.com>
6900             Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
6901
6902         PR jit/64089
6903         PR jit/84288
6904         * Makefile.in (LD_VERSION_SCRIPT_OPTION, LD_SONAME_OPTION): New.
6905         * configure: Regenerate.
6906         * configure.ac ("linker --version-script option"): New.
6907         ("linker soname option"): New.
6908
6909 2018-03-09  Richard Biener  <rguenther@suse.de>
6910
6911         PR tree-optimization/84775
6912         * tree-if-conv.c (add_bb_predicate_gimplified_stmts): Delink
6913         immediate uses of predicate stmts and mark them modified.
6914
6915         Revert
6916         PR tree-optimization/84178
6917         * tree-if-conv.c (combine_blocks): Move insert_gimplified_predicates
6918         to caller.
6919         (version_loop_for_if_conversion): Delay update_ssa call.
6920         (tree_if_conversion): Delay update_ssa until after predicate
6921         insertion.
6922
6923 2018-03-09  Eric Botcazou  <ebotcazou@adacore.com>
6924
6925         PR target/84763
6926         * config/i386/winnt.c (i386_pe_seh_cold_init): Use small pre-allocation
6927         when the function accesses prior frames.
6928
6929 2018-03-08  Jakub Jelinek  <jakub@redhat.com>
6930
6931         PR debug/84456
6932         * dwarf2out.c (dw_loc_list): If list && loc_list->first->next, call
6933         gen_llsym, otherwise call maybe_gen_llsym.
6934
6935         PR inline-asm/84742
6936         * recog.c (asm_operand_ok): Return 0 if multi-character constraint
6937         has ',' character inside of it.
6938
6939 2018-03-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
6940
6941         PR target/84748
6942         * config/aarch64/aarch64.md (*compare_cstore<mode>_insn): Mark pattern
6943         as clobbering CC_REGNUM.
6944
6945 2018-03-08  Richard Biener  <rguenther@suse.de>
6946
6947         PR middle-end/84552
6948         * tree-scalar-evolution.c: Include tree-into-ssa.h.
6949         (follow_copies_to_constant): Do not follow SSA names registered
6950         for update.
6951
6952 2018-03-08  Richard Biener  <rguenther@suse.de>
6953
6954         PR tree-optimization/84178
6955         * tree-if-conv.c (combine_blocks): Move insert_gimplified_predicates
6956         to caller.
6957         (version_loop_for_if_conversion): Delay update_ssa call.
6958         (tree_if_conversion): Delay update_ssa until after predicate
6959         insertion.
6960
6961 2018-03-08  David Malcolm  <dmalcolm@redhat.com>
6962
6963         PR tree-optimization/84178
6964         * tree-if-conv.c (release_bb_predicate): Remove the
6965         the assertion that the stmts have NULL use_ops.
6966         Discard the statements, asserting that they haven't
6967         yet been added to a BB.
6968
6969 2018-03-08  Richard Biener  <rguenther@suse.de>
6970
6971         PR tree-optimization/84746
6972         * tree-ssa-pre.c (find_leader_in_sets): Deal with SET1 being NULL.
6973         (phi_translate): Pass in destination ANTIC_OUT set.
6974         (phi_translate_1): Likewise.  For a simplified result lookup
6975         a leader in ANTIC_OUT and AVAIL_OUT, not the ANTIC_IN sets.
6976         (phi_translate_set): Adjust.
6977         (do_pre_regular_insertion): Likewise.
6978         (do_pre_partial_partial_insertion): Likewise.
6979
6980 2018-03-08  Martin Liska  <mliska@suse.cz>
6981
6982         PR gcov-profile/84735
6983         * doc/gcov.texi: Document usage of profile files.
6984         * gcov-io.h: Document changes in the format.
6985
6986 2018-03-08  Alexandre Oliva  <aoliva@redhat.com>
6987
6988         PR debug/84404
6989         PR debug/84408
6990         * dwarf2out.c (struct dw_line_info_table): Update comments for
6991         view == -1.
6992         (FORCE_RESET_NEXT_VIEW): New.
6993         (FORCE_RESETTING_VIEW_P): New.
6994         (RESETTING_VIEW_P): Check for -1 too.
6995         (ZERO_VIEW_P): Likewise.
6996         (new_line_info_table): Force-reset next view.
6997         (dwarf2out_begin_function): Likewise.
6998         (dwarf2out_source_line): Simplify zero_view_p initialization.
6999         Test FORCE_RESETTING_VIEW_P and RESETTING_VIEW_P instead of
7000         view directly.  Omit view when omitting .loc at line 0.
7001
7002 2018-03-08  Jakub Jelinek  <jakub@redhat.com>
7003
7004         PR tree-optimization/84740
7005         * tree-switch-conversion.c (process_switch): Call build_constructors
7006         only if info.phi_count is non-zero.
7007
7008         PR tree-optimization/84739
7009         * tree-tailcall.c (find_tail_calls): Check call arguments against
7010         DECL_ARGUMENTS (current_function_decl) rather than
7011         DECL_ARGUMENTS (func) when checking for tail recursion.
7012
7013 2018-03-07  Jakub Jelinek  <jakub@redhat.com>
7014
7015         * doc/contrib.texi: Add entries for Martin Liska, David Malcolm,
7016         Marek Polacek, extend Vladimir Makarov's, Jonathan Wakely's and
7017         Volker Reichelt's entry and add entries for people that perform
7018         GCC fuzzy testing and report numerous bugs.
7019
7020 2018-03-07  Segher Boessenkool  <segher@kernel.crashing.org>
7021
7022         PR target/82411
7023         * config/rs6000/rs6000.c (rs6000_elf_in_small_data_p): Don't put
7024         readonly data in sdata, if that is disabled.
7025         * config/rs6000/sysv4.opt (mreadonly-in-sdata): New option.
7026         * doc/invoke.texi (RS/6000 and PowerPC Options): Document
7027         -mreadonly-in-sdata option.
7028
7029 2018-03-07  Martin Sebor  <msebor@redhat.com>
7030
7031         PR tree-optimization/84468
7032         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Consider successor
7033         basic block when looking for nul assignment.
7034
7035 2018-03-07  Eric Botcazou  <ebotcazou@adacore.com>
7036
7037         PR target/84277
7038         * except.h (output_function_exception_table): Adjust prototype.
7039         * except.c (output_function_exception_table): Remove FNNAME parameter
7040         and add SECTION parameter.  Ouput one part of the table at a time.
7041         * final.c (final_scan_insn_1) <NOTE_INSN_SWITCH_TEXT_SECTIONS>: Output
7042         the first part of the exception table and emit unwind directives.
7043         * config/i386/i386-protos.h (i386_pe_end_cold_function): Declare.
7044         (i386_pe_seh_cold_init): Likewise.
7045         * config/i386/cygming.h (ASM_DECLARE_COLD_FUNCTION_NAME): New macro.
7046         (ASM_DECLARE_COLD_FUNCTION_SIZE): Likewise.
7047         * config/i386/i386.c (x86_expand_epilogue): Fix wording in comment.
7048         (ix86_output_call_insn): Emit a nop in one more case for SEH.
7049         * config/i386/winnt.c: Include except.h.
7050         (struct seh_frame_state): Add reg_offset, after_prologue and
7051         in_cold_section fields.
7052         (i386_pe_seh_end_prologue): Set seh->after_prologue.
7053         (i386_pe_seh_cold_init): New function.
7054         (i386_pe_seh_fini): Add COLD parameter and bail out if it is not equal
7055         to seh->in_cold_section.
7056         (seh_emit_push): Record the offset of the push.
7057         (seh_emit_save): Record the offet of the save.
7058         (i386_pe_seh_unwind_emit): Deal with NOTE_INSN_SWITCH_TEXT_SECTIONS.
7059         Test seh->after_prologue to disregard the epilogue.
7060         (i386_pe_end_function): Pass FALSE to i386_pe_seh_fini.
7061         (i386_pe_end_cold_function): New function.
7062
7063 2018-03-07  Jakub Jelinek  <jakub@redhat.com>
7064
7065         PR fortran/84565
7066         * config/aarch64/predicates.md (aarch64_simd_reg_or_zero): Use
7067         aarch64_simd_or_scalar_imm_zero rather than aarch64_simd_imm_zero.
7068
7069         PR c++/84704
7070         * gimple-expr.c (create_tmp_var_raw): Set DECL_NAMELESS flag
7071         on tmp_var.
7072         * tree-pretty-print.c (dump_decl_name): For TDF_COMPARE_DEBUG,
7073         don't print names of DECL_NAMELESS DECL_IGNORED_P decls.
7074
7075         PR middle-end/84723
7076         * multiple_target.c: Include tree-inline.h and intl.h.
7077         (expand_target_clones): Diagnose and fail if node->definition and
7078         !tree_versionable_function_p (node->decl).
7079
7080 2018-03-06  John David Anglin  <danglin@gcc.gnu.org>
7081
7082         * config/pa/pa.h (ASM_GENERATE_INTERNAL_LABEL): Revise to use
7083         sprint_ul.
7084         (ASM_OUTPUT_ADDR_VEC_ELT): Revise for above change.
7085         (ASM_OUTPUT_ADDR_DIFF_ELT): Likewise.
7086         * config/pa/pa64-hpux.h (ASM_GENERATE_INTERNAL_LABEL): Revise as above.
7087
7088 2018-03-06  Jakub Jelinek  <jakub@redhat.com>
7089
7090         PR target/84710
7091         * combine.c (try_combine): Use reg_or_subregno instead of handling
7092         just paradoxical SUBREGs and REGs.
7093
7094 2018-03-06  Claudiu Zissulescu  <claziss@synopsys.com>
7095
7096         * config/arc/arc.c (arc_finalize_pic): Remove function.
7097         (arc_must_save_register): We use single base PIC register, remove
7098         checks to save/restore the PIC register.
7099         (arc_expand_prologue): Likewise.
7100         * config/arc/arc-protos.h (arc_set_default_type_attributes):
7101         Remove.
7102         (arc_verify_short): Likewise.
7103         (arc_attr_type): Likewise.
7104         * config/arc/arc.c (arc_set_default_type_attributes): Remove.
7105         (walk_stores): Likewise.
7106         (arc_address_cost): Make it static.
7107         (arc_verify_short): Likewise.
7108         (branch_dest): Likewise.
7109         (arc_attr_type): Likewise.
7110         * config/arc/arc.c (TARGET_ADJUST_INSN_LENGTH): Remove.
7111         (TARGET_INSN_LENGTH_PARAMETERS): Likewise.
7112         (arc_final_prescan_insn): Remove inserting the nops due to
7113         hardware hazards.  It is done in reorg step.
7114         (insn_length_variant_t): Remove.
7115         (insn_length_parameters_t): Likewise.
7116         (arc_insn_length_parameters): Likewise.
7117         (arc_get_insn_variants): Likewise.
7118         * config/arc/arc.h (TARGET_UPSIZE_DBR): Remove.
7119
7120 2018-03-06  Jakub Jelinek  <jakub@redhat.com>
7121
7122         PR inline-asm/84683
7123         * reg-stack.c (move_for_stack_reg): If any_malformed_asm, avoid
7124         assertion failure.
7125
7126         PR tree-optimization/84687
7127         * omp-simd-clone.c (simd_clone_create): Clear DECL_BUILT_IN_CLASS
7128         on new_node->decl.
7129         * match.pd (pow(C,x)*expN(y) -> expN(logN(C)*x+y)): New optimization.
7130
7131 2018-03-05  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
7132
7133         * config/rs6000/rs6000-builtin.def (rs6000_speculation_barrier):
7134         Rename to ppc_speculation_barrier.
7135         * config/rs6000/rs6000.c (rs6000_init_builtins): Rename builtin to
7136         __builtin_ppc_speculation_barrier.
7137
7138 2018-03-05  Jakub Jelinek  <jakub@redhat.com>
7139
7140         PR target/84700
7141         * combine.c (combine_simplify_rtx): Don't try to simplify if
7142         if_then_else_cond returned non-NULL, but either true_rtx or false_rtx
7143         are equal to x.
7144
7145 2018-03-05  Segher Boessenkool  <segher@kernel.crashing.org>
7146
7147         * config/rs6000/rs6000.c (rs6000_loop_align): Don't align tiny loops
7148         to 32 bytes when compiling for POWER9.
7149
7150 2018-03-05  Jakub Jelinek  <jakub@redhat.com>
7151
7152         PR target/84564
7153         * config/i386/i386.c (ix86_function_ok_for_sibcall): Check for
7154         regparm >= 3 with no arg reg available also for calls with
7155         flag_force_indirect_call.  Pass decl to ix86_function_regparm.
7156
7157         PR target/84524
7158         * config/i386/sse.md (*<code><mode>3): Replace <mask_prefix3> with
7159         orig,vex.
7160         (*<plusminus_insn><mode>3): Likewise.  Remove <mask_operand3> uses.
7161
7162 2018-03-05  Peter Bergner  <bergner@vnet.ibm.com>
7163
7164         PR target/84264
7165         * config/rs6000/vector.md (mov<mode>): Disallow altivec memory operands.
7166
7167 2018-03-05  Richard Biener  <rguenther@suse.de>
7168
7169         PR tree-optimization/84486
7170         * tree-ssa-pre.c (create_expression_by_pieces): Remove dead code.
7171         When inserting a __builtin_assume_aligned call set the LHS
7172         SSA name alignment info accordingly.
7173
7174 2018-03-05  Wilco Dijkstra  <wdijkstr@arm.com>
7175
7176         PR tree-optimization/84114
7177         * config/aarch64/aarch64.c (aarch64_reassociation_width)
7178         Avoid reassociation of FLOAT_MODE addition.
7179
7180 2018-03-05  Olga Makhotina  <olga.makhotina@intel.com>
7181
7182         * common/config/i386/i386-common.c (OPTION_MASK_ISA_PCONFIG_SET,
7183         OPTION_MASK_ISA_PCONFIG_UNSET, OPTION_MASK_ISA_WBNOINVD_SET,
7184         OPTION_MASK_ISA_WBNOINVD_UNSET): New definitions.
7185         (ix86_handle_option): Handle -mpconfig and -mwbnoinvd.
7186         * config.gcc (pconfigintrin.h, wbnoinvdintrin.h) : Add headers.
7187         * config/i386/cpuid.h (bit_PCONFIG, bit_WBNOINVD): New.
7188         * config/i386/driver-i386.c (host_detect_local_cpu): Detect -mpconfig
7189         and -mwbnoinvd.
7190         * config/i386/i386-builtin.def (__builtin_ia32_wbnoinvd,
7191         __builtin_ia32_wbinvd): New builtins.
7192         (SPECIAL_ARGS2): New.
7193         * config/i386/i386-c.c (__WBNOINVD__, __PCONFIG__): New.
7194         (SPECIAL_ARGS2): New.
7195         * config/i386/i386.c (ix86_target_string): Add -mpconfig and -mwbnoinvd.
7196         (ix86_valid_target_attribute_inner_p): Ditto.
7197         (ix86_init_mmx_sse_builtins): Add special_args2.
7198         * config/i386/i386.h (TARGET_PCONFIG, TARGET_PCONFIG_P, TARGET_WBNOINVD,
7199         TARGET_WBNOINVD_P): New.
7200         * config/i386/i386.md (UNSPECV_WBINVD, UNSPECV_WBNOINVD): New.
7201         (define_insn "wbinvd", define_insn "wbnoinvd"): New.
7202         * config/i386/i386.opt: Add -mpconfig and -mwbnoinvd.
7203         * config/i386/immintrin.h (_wbinvd): New intrinsic.
7204         * config/i386/pconfigintrin.h: New file.
7205         * config/i386/wbnoinvdintrin.h: Ditto.
7206         * config/i386/x86intrin.h: Add headers pconfigintrin.h and
7207         wbnoinvdintrin.h.
7208         * doc/invoke.texi (-mpconfig, -mwbnoinvd): New.
7209
7210 2018-03-05  Richard Biener  <rguenther@suse.de>
7211
7212         PR tree-optimization/84670
7213         * tree-ssa-pre.c (struct bb_bitmap_sets): Add visited_with_visited_succs
7214         member.
7215         (BB_VISITED_WITH_VISITED_SUCCS): New define.
7216         (compute_antic): Initialize BB_VISITED_WITH_VISITED_SUCCS.
7217         (compute_antic_aux): Only assert the number of values in ANTIC_IN
7218         doesn't grow if all successors (recursively) were visited at least
7219         once.
7220
7221 2018-03-05  Richard Biener  <rguenther@suse.de>
7222
7223         PR tree-optimization/84650
7224         * tree-ssa-loop-im.c (pass_lim::execute): Reset the SCEV cache
7225         if executed in the loop pipeline.
7226
7227 2018-03-05  Sandra Loosemore  <sandra@codesourcery.com>
7228
7229         * doc/configfiles.texi (Configuration Files): Move info about
7230         conditionalizing $target-protos.h to...
7231         * doc/sourcebuild.texi (Back End): Here.  Explain how $target.h
7232         differs from $target-protos.h.
7233
7234 2018-03-05  Kito Cheng  <kito.cheng@gmail.com>
7235             Chung-Ju Wu  <jasonwucj@gmail.com>
7236
7237         * config/nds32/nds32-protos.h (nds32_expand_setmem): Declare.
7238         * config/nds32/nds32-multiple.md (setmemsi): Define.
7239         * config/nds32/nds32-memory-manipulation.c
7240         (nds32_gen_dup_4_byte_to_word_value): New.
7241         (emit_setmem_word_loop): New.
7242         (emit_setmem_byte_loop): New.
7243         (nds32_expand_setmem_loop): New.
7244         (nds32_expand_setmem_loop_v3m): New.
7245         (nds32_expand_setmem_unroll): New.
7246         (nds32_expand_setmem): New.
7247
7248 2018-03-04  Kito Cheng  <kito.cheng@gmail.com>
7249             Chung-Ju Wu  <jasonwucj@gmail.com>
7250
7251         * config/nds32/nds32-memory-manipulation.c
7252         (nds32_emit_load_store): New.
7253         (nds32_emit_post_inc_load_store): New.
7254         (nds32_emit_mem_move): New.
7255         (nds32_emit_mem_move_block): New.
7256         (nds32_expand_movmemsi_loop_unknown_size): New.
7257         (nds32_expand_movmemsi_loop_known_size): New.
7258         (nds32_expand_movmemsi_loop): New.
7259         (nds32_expand_movmemsi_unroll): New.
7260         (nds32_expand_movmemqi): Rename ...
7261         (nds32_expand_movmemsi): ... to this.
7262         * config/nds32/nds32-multiple.md (movmemqi): Rename ...
7263         (movmemsi): ... to this.
7264         * config/nds32/nds32-protos.h (nds32_expand_movmemqi): Rename ...
7265         (nds32_expand_movmemsi): ... to this.
7266
7267 2018-03-04  Kito Cheng  <kito.cheng@gmail.com>
7268             Monk Chiang  <sh.chiang04@gmail.com>
7269             Chung-Ju Wu  <jasonwucj@gmail.com>
7270
7271         * config/nds32/nds32-protos.h
7272         (nds32_expand_load_multiple): New arguments.
7273         (nds32_expand_store_multiple): Ditto.
7274         (nds32_valid_multiple_load_store): Rename ...
7275         (nds32_valid_multiple_load_store_p): ... to this.
7276         * config/nds32/nds32-memory-manipulation.c
7277         (nds32_expand_load_multiple): Refine implementation.
7278         (nds32_expand_store_multiple): Ditto.
7279         * config/nds32/nds32-multiple.md
7280         (load_multiple): Update nds32_expand_load_multiple interface.
7281         (store_multiple): Update nds32_expand_store_multiple interface.
7282         * config/nds32/nds32-predicates.c
7283         (nds32_valid_multiple_load_store): Rename ...
7284         (nds32_valid_multiple_load_store_p): ... to this and refine
7285         implementation.
7286         * config/nds32/predicates.md
7287         (nds32_load_multiple_and_update_address_operation): New predicate.
7288         (nds32_store_multiple_and_update_address_operation): New predicate.
7289
7290 2018-03-04  Kito Cheng  <kito.cheng@gmail.com>
7291             Chung-Ju Wu  <jasonwucj@gmail.com>
7292
7293         * config/nds32/nds32.md (type): Add load_multiple and store_multiple.
7294         (combo): New attribute.
7295         * config/nds32/nds32-multiple.md: Refine patterns with new attributes.
7296
7297 2018-03-03  Chung-Ju Wu  <jasonwucj@gmail.com>
7298
7299         * config/nds32/nds32.opt: Change -mcmodel= default value.
7300
7301 2018-03-03  Kito Cheng  <kito.cheng@gmail.com>
7302             Monk Chiang  <sh.chiang04@gmail.com>
7303             Chung-Ju Wu  <jasonwucj@gmail.com>
7304
7305         * config/nds32/constants.md (unspec_element): New enum.
7306         * config/nds32/constraints.md (Umw): New constraint.
7307         * config/nds32/nds32-intrinsic.c: Add more builtin functions.
7308         * config/nds32/nds32-intrinsic.md: Likewise.
7309         * config/nds32/nds32-md-auxiliary.c (nds32_regno_to_enable4): New.
7310         (nds32_valid_smw_lwm_base_p): New.
7311         (nds32_output_smw_single_word): New.
7312         (nds32_output_lmw_single_word): New.
7313         (nds32_expand_unaligned_load): New.
7314         (nds32_expand_unaligned_store): New.
7315         * config/nds32/nds32-protos.h (nds32_valid_smw_lwm_base_p): Declare.
7316         (nds32_output_smw_single_word): Declare.
7317         (nds32_output_lmw_single_word): Declare.
7318         (nds32_expand_unaligned_load): Declare.
7319         (nds32_expand_unaligned_store): Declare.
7320         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_UALOAD_HW,
7321         NDS32_BUILTIN_UALOAD_W, NDS32_BUILTIN_UALOAD_DW,
7322         NDS32_BUILTIN_UASTORE_HW, NDS32_BUILTIN_UASTORE_W,
7323         NDS32_BUILTIN_UASTORE_DW.
7324         * config/nds32/predicates.md (nds32_lmw_smw_base_operand): New
7325         predicate.
7326
7327 2018-03-03  Monk Chiang  <sh.chiang04@gmail.com>
7328             Kito Cheng  <kito.cheng@gmail.com>
7329             Chung-Ju Wu  <jasonwucj@gmail.com>
7330
7331         * config/nds32/nds32-intrinsic.c
7332         (nds32_expand_builtin_null_ftype_reg): Delete.
7333         (nds32_expand_builtin_reg_ftype_imm): Ditto.
7334         (nds32_expand_builtin_null_ftype_reg_imm): Ditto.
7335         (nds32_read_argument): New.
7336         (nds32_legitimize_target): Ditto.
7337         (nds32_legitimize_argument): Ditto.
7338         (nds32_check_constant_argument): Ditto.
7339         (nds32_expand_unop_builtin): Ditto.
7340         (nds32_expand_unopimm_builtin): Ditto.
7341         (nds32_expand_binop_builtin): Ditto.
7342         (nds32_builtin_decl_impl): Ditto.
7343         (builtin_description): Ditto.
7344         (nds32_expand_builtin_impl): Rewrite with new infrastructure.
7345         (nds32_init_builtins_impl): Ditto.
7346         * config/nds32/nds32.c (TARGET_BUILTIN_DECL): Define.
7347         (nds32_builtin_decl): New.
7348         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_COUNT.
7349         * config/nds32/nds32-protos.h (nds32_builtin_decl_impl): Declare.
7350
7351 2018-03-02  Jeff Law  <law@redhat.com>
7352
7353         * reorg.c (stop_search_p): Handle DEBUG_INSN.
7354         (redundant_insn, fill_simple_delay_slots): Likewise.
7355         (fill_slots_from_thread): Likewise.
7356         * resource.c (mark_referenced_resources): Likewise.
7357         (mark_set_resources, find_dead_or_set_registers): Likewise.
7358
7359 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
7360
7361         * substring-locations.h (format_warning_va): Formatting fix for
7362         ATTRIBUTE_GCC_DIAG.
7363         (format_warning_at_substring): Fix up ATTRIBUTE_GCC_DIAG second
7364         argument.
7365         (format_warning_n_va, format_warning_at_substring_n): New prototypes.
7366         * substring-locations.c: Include intl.h.
7367         (format_warning_va): Turned into small wrapper around
7368         format_warning_n_va, renamed to ...
7369         (format_warning_n_va): ... this, add N and PLURAL_GMSGID arguments,
7370         rename GMSGID to SINGULAR_GMSGID, if SINGULAR_GMSGID != PLURAL_GMSGID,
7371         use ngettext.
7372         (format_warning_at_substring_n): New function.
7373         * gimple-ssa-sprintf.c: Remove GCC diagnostic ignored pragma.
7374         (fmtwarn): Add ATTRIBUTE_GCC_DIAG.  Turn into a copy of
7375         format_warning_at_substring with just a shorter name instead of
7376         const function pointer.
7377         (fmtwarn_n): New function.
7378         (maybe_warn, format_directive, parse_directive): Use fmtwarn_n where
7379         appropriate, get rid of all the fmtstr temporaries, move conditionals
7380         with G_() wrapped string literals directly into fmtwarn arguments,
7381         cast dir.len to (int), formatting fixes.
7382
7383 2018-03-02  Thomas Schwinge  <thomas@codesourcery.com>
7384
7385         * doc/invoke.texi: Remove "Cilk Plus" references.
7386
7387 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
7388             Richard Biener  <rguenther@suse.de>
7389
7390         PR ipa/84628
7391         * expr.c (expand_expr_real_1) <case CALL_EXPR>: Don't emit diagnostics
7392         for error or warning attributes if CALL_FROM_THUNK_P is set.
7393         Formatting fixes.
7394
7395 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
7396
7397         PR target/56540
7398         * config/pa/pa.h (TARGET_CPU_CPP_BUILTINS): Predefine
7399         __SIZEOF_128__ macro if HPUX_LONG_DOUBLE_LIBRARY.
7400
7401         PR target/56540
7402         * config/ia64/ia64.h (TARGET_CPU_CPP_BUILTINS): Predefine
7403         __SIZEOF_{FPREG,FLOAT{80,128}}__ macros.
7404
7405         * predict.c (test_prediction_value_range): Use PROB_UNINITIALIZED
7406         instead of -1U in last predictors element's probability member.
7407
7408 2018-03-02  Eric Botcazou  <ebotcazou@adacore.com>
7409
7410         PR ipa/83983
7411         * ipa-devirt.c (odr_subtypes_equivalent_p): Get the ODR type of both
7412         arguments if they are comparable.
7413
7414 2018-03-02  Richard Sandiford  <richard.sandiford@linaro.org>
7415
7416         PR tree-optimization/84634
7417         * tree-vect-stmts.c (vectorizable_store, vectorizable_load): Replace
7418         masks and masked_loop_p with a single loop_masks, making sure it's
7419         null for bb vectorization.
7420
7421 2018-03-02  Richard Sandiford  <richard.sandiford@linaro.org>
7422
7423         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence)
7424         (vect_analyze_data_ref_access): Use loop->safe_len rather than
7425         loop->force_vectorize to check whether there is no alias.
7426
7427 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
7428
7429         PR target/84614
7430         * rtl.h (prev_real_nondebug_insn, next_real_nondebug_insn): New
7431         prototypes.
7432         * emit-rtl.c (next_real_insn, prev_real_insn): Fix up function
7433         comments.
7434         (next_real_nondebug_insn, prev_real_nondebug_insn): New functions.
7435         * cfgcleanup.c (try_head_merge_bb): Use prev_real_nondebug_insn
7436         instead of a loop around prev_real_insn.
7437         * combine.c (move_deaths): Use prev_real_nondebug_insn instead of
7438         prev_real_insn.
7439
7440         PR inline-asm/84625
7441         * config/i386/i386.c (ix86_print_operand): Use conditional
7442         output_operand_lossage instead of gcc_assert if CONST_VECTOR is not
7443         zero vector.
7444
7445 2018-03-02  Richard Biener  <rguenther@suse.de>
7446
7447         PR tree-optimization/84427
7448         * tree-ssa-pre.c (bitmap_remove_expr_from_set): Remove.
7449         (bitmap_set_subtract_values): Rewrite to handle multiple
7450         exprs per value.
7451         (clean): Likewise.
7452         (prune_clobbered_mems): Likewise.
7453         (phi_translate): Take edge instead of pred/phiblock.
7454         (phi_translate_1): Likewise.
7455         (phi_translate_set): Likewise.  Insert all translated
7456         exprs for a value into the set, keeping possibly multiple
7457         expressions per value.
7458         (compute_antic_aux): Adjust for phi_translate changes.
7459         When intersecting union the expressions and prune those
7460         not in the final value set, keeping possibly multiple
7461         expressions per value.  Do not use value-insertion
7462         for unioning ANTIC_OUT U EXP_GEN - TMP_GEN but merge
7463         all expressions.  Add verification that the value-sets
7464         only shrink during iteration.
7465         (compute_partial_antic_aux): Adjust for the phi_translate changes.
7466         (do_pre_regular_insertion): Likewise.
7467         (do_pre_partial_partial_insertion): Likewise.
7468
7469 2018-03-02  Richard Biener  <rguenther@suse.de>
7470
7471         PR target/82005
7472         * config/darwin.c (saved_debug_info_level): New static global.
7473         (darwin_asm_lto_start): Disable debug info generation for LTO out.
7474         (darwin_asm_lto_end): Restore debug info generation settings.
7475
7476 2018-03-01  Martin Liska  <mliska@suse.cz>
7477
7478         PR sanitizer/82484
7479         * sanopt.c (sanitize_rewrite_addressable_params): Do not handle
7480         volatile arguments.
7481
7482 2018-03-01  Richard Biener  <rguenther@suse.de>
7483
7484         PR debug/84645
7485         * dwarf2out.c (gen_variable_die): Properly handle late VLA
7486         type annotation with LTO when debug was disabled at compile-time.
7487
7488 2018-03-01  Matthew Fortune  <mfortune@gmail.com>
7489
7490         * config/mips/mips.c (mips_final_prescan_insn): Fix incorrect
7491         XINT with INTVAL.
7492         (mips_final_postscan_insn): Likewise.
7493
7494 2018-03-01  Richard Sandiford  <richard.sandiford@linaro.org>
7495
7496         PR rtl-optimization/84528
7497         * alias.c (init_alias_target): Add commentary.
7498         (init_alias_analysis): Only give HARD_FRAME_POINTER_REGNUM
7499         a unique base value if the frame pointer is not eliminated
7500         to the stack pointer.
7501
7502 2018-03-01  Tom de Vries  <tom@codesourcery.com>
7503
7504         PR rtl-optimization/83327
7505         * lra-int.h (hard_regs_spilled_into): Declare.
7506         * lra.c (hard_regs_spilled_into): Define.
7507         (init_reg_info): Init hard_regs_spilled_into.
7508         * lra-spills.c (assign_spill_hard_regs): Update hard_regs_spilled_into.
7509         * lra-lives.c (make_hard_regno_born, make_hard_regno_dead)
7510         (process_bb_lives): Handle hard_regs_spilled_into.
7511         (lra_create_live_ranges_1): Before doing liveness propagation, clear
7512         regs in all_hard_regs_bitmap if set in hard_regs_spilled_into.
7513
7514 2018-02-28  David Edelsohn  <dje.gcc@gmail.com>
7515
7516         * config.gcc (powerpc-ibm-aix7.1.*): New stanza.
7517         (powerpc-ibm-aix[789]*): Default to AIX 7.2.
7518         * config/rs6000/aix71.h (TARGET_DEFAULT): Revert to Power4 ISA.
7519         * config/rs6000/aix72.h: New file.
7520
7521 2018-02-28  Jakub Jelinek  <jakub@redhat.com>
7522
7523         * gimple-ssa-warn-restrict.c (maybe_diag_overlap): Use warning_n
7524         instead of warning_at with conditional singular and plural messages
7525         where possible.
7526
7527         PR target/52991
7528         * stor-layout.c (update_alignment_for_field): For
7529         targetm.ms_bitfield_layout_p (rli->t), if !is_bitfield
7530         && !DECL_PACKED (field), do the alignment update, just use
7531         only desired_align instead of MAX (type_align, desired_align)
7532         as the alignment.
7533         (place_field): Don't do known_align < desired_align handling
7534         early if targetm.ms_bitfield_layout_p (rli->t) and rli->prev_field
7535         is non-NULL, instead do it after rli->prev_field handling and
7536         only if not within a bitfield word.  For DECL_PACKED (field)
7537         use type_align of BITS_PER_UNIT.
7538
7539 2018-02-28  Eric Botcazou  <ebotcazou@adacore.com>
7540
7541         * config/aarch64/aarch64.c (aarch64_emit_probe_stack_range): Remove
7542         superfluous parentheses and trailing spaces.
7543
7544 2018-02-28  Richard Biener  <rguenther@suse.de>
7545
7546         PR tree-optimization/84584
7547         * graphite-scop-detection.c (scop_detection::add_scop): Discard
7548         SCoPs with fake exit edge.
7549
7550 2018-02-28  Martin Liska  <mliska@suse.cz>
7551
7552         PR testsuite/84597
7553         * timevar.c (timer::print): Fix format to properly print 100%
7554         values.
7555
7556 2018-02-28  Richard Biener  <rguenther@suse.de>
7557
7558         PR middle-end/84607
7559         * genmatch.c (capture_info::walk_match): Do not mark
7560         captured expressions without operands as expr_p given
7561         they act more like predicates and should be subject to
7562         "lost tail" side-effect preserving.
7563
7564 2018-02-28  Alexandre Oliva  <aoliva@redhat.com>
7565
7566         PR rtl-optimization/81611
7567         * auto-inc-dec.c (attempt_change): Move dead note from
7568         mem_insn if it's the next use of regno
7569         (find_address): Take address use of reg holding
7570         non-incremented value.  Add parm to limit search to the named
7571         reg only.
7572         (merge_in_block): Attempt to use a mem insn that is the next
7573         use of the original regno.
7574
7575 2018-02-27  Martin Sebor  <msebor@redhat.com>
7576
7577         PR c++/83871
7578         * gcc/doc/invoke.texi (-Wmissing-attributes): New option.
7579         * gcc/print-tree.c (print_node): Handle DECL_UNINLINABLE.
7580
7581 2018-02-27  Martin Sebor  <msebor@redhat.com>
7582
7583         PR translation/84207
7584         * diagnostic-core.h (warning_n, error_n, inform_n): Change
7585         n argument to unsigned HOST_WIDE_INT.
7586         * diagnostic.c (warning_n, error_n, inform_n): Ditto.
7587         (diagnostic_n_impl): Ditto.  Handle arguments in excess of LONG_MAX.
7588         * gimple-ssa-sprintf.c (format_directive): Simplify inform_n call.
7589         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Use warning_n.
7590
7591 2018-02-27  Richard Biener  <rguenther@suse.de>
7592
7593         PR tree-optimization/84512
7594         * tree-vect-loop.c (vect_compute_single_scalar_iteration_cost):
7595         Do not use the estimate returned from record_stmt_cost for
7596         the scalar iteration cost but sum properly using add_stmt_cost.
7597
7598 2018-02-27  Richard Biener  <rguenther@suse.de>
7599
7600         PR tree-optimization/84466
7601         * graphite-scop-detection.c (scop_detection::stmt_simple_for_scop_p):
7602         Adjust last change to less strictly validate use operands.
7603
7604 2018-02-27  Martin Liska  <mliska@suse.cz>
7605
7606         PR gcov-profile/84548
7607         * gcov.c (process_file): Allow partial overlap and consider it
7608         also as group functions.
7609         (output_lines): Properly calculate range of lines for a group.
7610
7611 2018-02-27  Martin Liska  <mliska@suse.cz>
7612
7613         * timevar.c (timer::print_row): Remove 'usr', 'sys', 'wall' and
7614         'ggc' suffixes.  Change first column width.
7615         (timer::print): Fix formatting of the column.
7616
7617 2018-02-27  Alexandre Oliva  <aoliva@redhat.com>
7618
7619         * tree-ssa-live.c (remove_unused_scope_block_p): Do not
7620         preserve inline entry blocks for the sake of debug inline
7621         entry point markers alone.
7622         (remove_unused_locals): Suggest in comments a better place to
7623         force the preservation of inline entry blocks that are
7624         otherwise unused, but do not preserve them.
7625
7626 2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
7627
7628         * config/i386/i386.c (ix86_output_indirect_jmp): Update comments.
7629
7630 2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
7631
7632         PR target/84039
7633         * config/i386/constraints.md (Bs): Replace
7634         ix86_indirect_branch_register with
7635         TARGET_INDIRECT_BRANCH_REGISTER.
7636         (Bw): Likewise.
7637         * config/i386/i386.md (indirect_jump): Likewise.
7638         (tablejump): Likewise.
7639         (*sibcall_memory): Likewise.
7640         (*sibcall_value_memory): Likewise.
7641         Peepholes of indirect call and jump via memory: Likewise.
7642         (*sibcall_GOT_32): Disallowed for TARGET_INDIRECT_BRANCH_REGISTER.
7643         (*sibcall_value_GOT_32): Likewise.
7644         * config/i386/predicates.md (indirect_branch_operand): Likewise.
7645         (GOT_memory_operand): Likewise.
7646         (call_insn_operand): Likewise.
7647         (sibcall_insn_operand): Likewise.
7648         (GOT32_symbol_operand): Likewise.
7649         * config/i386/i386.h (TARGET_INDIRECT_BRANCH_REGISTER): New.
7650
7651 2018-02-26  Eric Botcazou  <ebotcazou@adacore.com>
7652
7653         PR rtl-optimization/83496
7654         * reorg.c (steal_delay_list_from_target): Change REDUNDANT array from
7655         booleans to RTXes.  Call fix_reg_dead_note on every non-null element.
7656         (steal_delay_list_from_fallthrough): Call fix_reg_dead_note on a
7657         redundant insn, if any.
7658         (relax_delay_slots): Likewise.
7659         (update_reg_unused_notes): Rename REDUNDANT_INSN to OTHER_INSN.
7660
7661 2018-02-26  Richard Sandiford  <richard.sandiford@linaro.org>
7662
7663         PR tree-optimization/83965
7664         * tree-vect-patterns.c (vect_reassociating_reduction_p): Assume
7665         that grouped statements are part of a reduction chain.  Return
7666         true if the statement is not marked as a reduction itself but
7667         is part of a group.
7668         (vect_recog_dot_prod_pattern): Don't check whether the statement
7669         is part of a group here.
7670         (vect_recog_sad_pattern): Likewise.
7671         (vect_recog_widen_sum_pattern): Likewise.
7672
7673 2018-02-26  Eric Botcazou  <ebotcazou@adacore.com>
7674
7675         PR debug/84545
7676         * final.c (rest_of_clean_state): Also look for calls inside sequences.
7677
7678 2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
7679
7680         PR target/84530
7681         * config/i386/i386-protos.h (ix86_output_indirect_jmp): Remove
7682         the bool argument.
7683         (ix86_output_indirect_function_return): New prototype.
7684         (ix86_split_simple_return_pop_internal): Likewise.
7685         * config/i386/i386.c (indirect_return_via_cx): New.
7686         (indirect_return_via_cx_bnd): Likewise.
7687         (indirect_thunk_name): Handle return va CX_REG.
7688         (output_indirect_thunk_function): Create alias for
7689         __x86_return_thunk_[re]cx and __x86_return_thunk_[re]cx_bnd.
7690         (ix86_output_indirect_jmp): Remove the bool argument.
7691         (ix86_output_indirect_function_return): New function.
7692         (ix86_split_simple_return_pop_internal): Likewise.
7693         * config/i386/i386.md (*indirect_jump): Don't pass false
7694         to ix86_output_indirect_jmp.
7695         (*tablejump_1): Likewise.
7696         (simple_return_pop_internal): Change it to define_insn_and_split.
7697         Call ix86_split_simple_return_pop_internal to split it for
7698         -mfunction-return=.
7699         (simple_return_indirect_internal): Call
7700         ix86_output_indirect_function_return instead of
7701         ix86_output_indirect_jmp.
7702
7703 2018-02-26  Jakub Jelinek  <jakub@redhat.com>
7704
7705         PR bootstrap/84405
7706         * vec.h (vec_default_construct): For BROKEN_VALUE_INITIALIZATION use
7707         memset and value initialization afterwards.
7708
7709 2018-02-26  Christophe Lyon  <christophe.lyon@linaro.org>
7710
7711         * Makefile.in (lto-wrapper): Use ALL_LINKERFLAGS.
7712
7713 2018-02-26  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
7714
7715         PR target/84521
7716         * common/config/aarch64/aarch64-common.c
7717         (aarch_option_optimization_table[]): Switch
7718         off fomit-frame-pointer
7719
7720 2018-02-26  Kito Cheng  <kito.cheng@gmail.com>
7721             Chung-Ju Wu  <jasonwucj@gmail.com>
7722
7723         * config/nds32/nds32-multiple.md (load_multiple): Disallow
7724         volatile memory.
7725         (store_multiple): Ditto.
7726
7727 2018-02-26  Kito Cheng  <kito.cheng@gmail.com>
7728
7729         * config.gcc: Add --with-cpu support for nds32 target.
7730         * config/nds32/nds32-opts.h (nds32_cpu_type): New.
7731         * config/nds32/nds32.opt: Add -mcpu= option.
7732
7733 2018-02-25  Segher Boessenkool  <segher@kernel.crashing.org>
7734
7735         * config/rs6000/rs6000.opt (mvrsave=no, mvrsave=yes, isel=no,
7736         isel=yes): Warn for these deprecated options.
7737
7738 2018-02-23  David Edelsohn  <dje.gcc@gmail.com>
7739
7740         * config/rs6000/aix71.h (TARGET_DEFAULT): Change to
7741         ISA_2_5_MASKS_EMBEDDED.
7742
7743 2018-02-23  Jakub Jelinek  <jakub@redhat.com>
7744
7745         * ipa-prop.c (ipa_vr_ggc_hash_traits::hash): Hash p->min and
7746         p->max as pointers rather than using iterative_hash_expr.
7747
7748 2018-02-23  Carl Love  <cel@us.ibm.com>
7749
7750         * config/rs6000/rs6000-builtin.def: Change VSIGNED2 and VUNSIGNED2
7751         macro expansions from BU_VSX_2 to BU_P8V_VSX_2 and BU_VSX_OVERLOAD_2 to
7752         BU_P8V_OVERLOAD_2.
7753         * config/rs6000/rs6000-c.c: Change VSX_BUILTIN_VEC_VSIGNED2 to
7754         P8V_BUILTIN_VEC_VSIGNED2.  Change VSX_BUILTIN_VEC_VUNSIGNED2 to
7755         P8V_BUILTIN_VEC_VUNSIGNED2.
7756
7757 2018-02-22  Vladimir Makarov  <vmakarov@redhat.com>
7758
7759         PR target/81572
7760         * lra-int.h (LRA_UNKNOWN_ALT, LRA_NON_CLOBBERED_ALT): New macros.
7761         * lra.c (lra_set_insn_recog_data, lra_update_insn_recog_data): Use
7762         LRA_UNKNOWN_ALT.
7763         * lra-constraints.c (curr_insn_transform): Set up
7764         LRA_NON_CLOBBERED_ALT for moves processed on the fast path.  Use
7765         LRA_UNKNOWN_ALT.
7766         (remove_inheritance_pseudos): Use LRA_UNKNOWN_ALT.
7767         * lra-eliminations.c (spill_pseudos): Ditto.
7768         (process_insn_for_elimination): Ditto.
7769         * lra-lives.c (reg_early_clobber_p): Use the new macros.
7770         * lra-spills.c (spill_pseudos): Use LRA_UNKNOWN_ALT and
7771         LRA_NON_CLOBBERED_ALT.
7772
7773 2018-02-22  Martin Sebor  <msebor@redhat.com>
7774
7775         PR tree-optimization/84480
7776         * gimple-fold.c (gimple_fold_builtin_strcpy): Move warnings
7777         to maybe_diag_stxncpy_trunc.  Call it.
7778         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Integrate warnings
7779         from gimple_fold_builtin_strcpy.  Print inlining stack.
7780         (handle_builtin_stxncpy): Print inlining stack.
7781         * tree-ssa-strlen.h (maybe_diag_stxncpy_trunc): Declare.
7782
7783 2018-02-22  H.J. Lu  <hongjiu.lu@intel.com>
7784
7785         PR target/84176
7786         * config/i386/i386.c (ix86_set_indirect_branch_type): Issue an
7787         error when -mindirect-branch=thunk-extern, -fcf-protection=branch
7788         and -fcheck-pointer-bounds are used together.
7789         (indirect_thunk_prefix): New enum.
7790         (indirect_thunk_need_prefix): New function.
7791         (indirect_thunk_name): Replace need_bnd_p with need_prefix.  Use
7792         "_nt" instead of "_bnd" for NOTRACK prefix.
7793         (output_indirect_thunk): Replace need_bnd_p with need_prefix.
7794         (output_indirect_thunk_function): Likewise.
7795         (): Likewise.
7796         (ix86_code_end): Update output_indirect_thunk_function calls.
7797         (ix86_output_indirect_branch_via_reg): Replace
7798         ix86_bnd_prefixed_insn_p with indirect_thunk_need_prefix.
7799         (ix86_output_indirect_branch_via_push): Likewise.
7800         (ix86_output_function_return): Likewise.
7801         * doc/invoke.texi: Document -mindirect-branch=thunk-extern is
7802         incompatible with -fcf-protection=branch and
7803         -fcheck-pointer-bounds.
7804
7805 2018-02-22  Steve Ellcey  <sellcey@cavium.com>
7806
7807         PR target/83335
7808         * config/aarch64/aarch64.c (aarch64_print_address_internal):
7809         Change gcc_assert call to output_operand_lossage.
7810
7811 2018-02-22  Steve Ellcey  <sellcey@cavium.com>
7812
7813         * doc/extend.texi (__builtin_extend_pointer): Document builtin.
7814
7815 2018-02-22  DJ Delorie  <dj@redhat.com>
7816             Sebastian Perta  <sebastian.perta@renesas.com>
7817             Oleg Endo  <olegendo@gcc.gnu.org>
7818
7819         * config/rx/rx.c (rx_rtx_costs): New function.
7820         (TARGET_RTX_COSTS): Override to use rx_rtx_costs.
7821
7822 2018-02-22  Thomas Preud'homme  <thomas.preudhomme@arm.com>
7823
7824         * config/arm/t-multilib: Map Armv8-R to Armv7 multilibs.
7825
7826 2018-02-22  Martin Liska  <mliska@suse.cz>
7827
7828         PR driver/83193
7829         * common/config/arm/arm-common.c (arm_print_hint_for_cpu_option):
7830         Add "native" as a possible value.
7831
7832 2018-02-22  Martin Liska  <mliska@suse.cz>
7833
7834         PR driver/83193
7835         * config/i386/i386.c (ix86_option_override_internal):
7836         Add "native" as a possible value for -march and -mtune.
7837
7838 2018-02-22  Jakub Jelinek  <jakub@redhat.com>
7839
7840         PR target/84502
7841         * stor-layout.c (finalize_type_size): Propagate TYPE_EMPTY_P flag
7842         to all type variants.
7843
7844         PR tree-optimization/84503
7845         * gimple-ssa-store-merging.c (merged_store_group::merge_into): Compute
7846         width as info->bitpos + info->bitsize - start.
7847         (merged_store_group::merge_overlapping): Simplify width computation.
7848         (check_no_overlap): New function.
7849         (imm_store_chain_info::try_coalesce_bswap): Compute expected
7850         start + width and last_order of the group, fail if check_no_overlap
7851         fails.
7852         (imm_store_chain_info::coalesce_immediate_stores): Don't merge info
7853         to group if check_no_overlap fails.
7854
7855 2018-02-21  Segher Boessenkool  <segher@kernel.crashing.org>
7856
7857         * config/rs6000/altivec.md: Delete contraint arguments to
7858         define_expand, define_split, and define_peephole2, and in
7859         define_insn_and_split if always unused.
7860         * config/rs6000/darwin.md: Ditto.
7861         * config/rs6000/dfp.md: Ditto.
7862         * config/rs6000/rs6000.md: Ditto.
7863         * config/rs6000/sync.md: Ditto.
7864         * config/rs6000/vector.md: Ditto.
7865         * config/rs6000/vsx.md: Ditto.
7866
7867 2018-02-21  Segher Boessenkool  <segher@kernel.crashing.org>
7868
7869         * config/rs6000/altivec.md: Write output control strings as braced
7870         blocks instead of double-quoted strings.
7871         * config/rs6000/darwin.md: Ditto.
7872         * config/rs6000/rs6000.md: Ditto.
7873         * config/rs6000/vector.md: Ditto.
7874         * config/rs6000/vsx.md: Ditto.
7875
7876 2018-02-21  Jason Merrill  <jason@redhat.com>
7877
7878         PR c++/84314 - ICE with templates and fastcall attribute.
7879         * attribs.c (build_type_attribute_qual_variant): Remove assert.
7880
7881 2018-02-21  Jan Hubicka  <hubicka@ucw.cz>
7882
7883         * ipa-cp.c (determine_versionability): Fix comment typos.
7884
7885 2018-02-21  Jan Hubicka  <hubicka@ucw.cz>
7886
7887         PR c/84229
7888         * ipa-cp.c (determine_versionability): Do not version functions caling
7889         va_arg_pack.
7890
7891 2018-02-21  Martin Liska  <mliska@suse.cz>
7892
7893         PR driver/83193
7894         * config/aarch64/aarch64.c (aarch64_print_hint_for_core_or_arch):
7895         Add "native" as a possible value.
7896         * config/aarch64/aarch64.h (HAVE_LOCAL_CPU_DETECT):  Define
7897         the macro when native cpu detection is available.
7898
7899 2018-02-21  Martin Liska  <mliska@suse.cz>
7900
7901         PR driver/83193
7902         * common/config/arm/arm-common.c (arm_print_hint_for_arch_option):
7903         Add "native" as a possible value.
7904         * config/arm/arm.h (HAVE_LOCAL_CPU_DETECT): Define the macro
7905         when native cpu detection is available.
7906
7907 2018-02-21  Jakub Jelinek  <jakub@redhat.com>
7908             Martin Sebor  <msebor@redhat.com>
7909
7910         PR tree-optimization/84478
7911         * gimple-fold.h (get_range_strlen): Add a bool argument defaulted to
7912         false.
7913         * gimple-fold.c (get_range_strlen): Make minlen const and assume it
7914         can't be NULL.  Change FUZZY from bool to int, for 1 add PHI/COND_EXPR
7915         support which is conservatively correct, for 2 only stay conservative
7916         for maxlen.  Formatting and comment capitalization fixes.  Add STRICT
7917         argument to the 2 argument get_range_strlen, adjust 6 arg
7918         get_range_strlen caller and clear minmaxlen[0] and [1] if it returned
7919         false.
7920         (get_maxval_strlen): Adjust 6 arg get_range_strlen caller.
7921         (gimple_fold_builtin_strlen): Pass true as last argument to
7922         get_range_strlen.
7923
7924 2018-02-20  Martin Sebor  <msebor@redhat.com>
7925
7926         PR middle-end/84095
7927         * gimple-ssa-warn-restrict.c (builtin_memref::extend_offset_range): New.
7928         (builtin_memref::set_base_and_offset): Same.  Handle inner references.
7929         (builtin_memref::builtin_memref): Factor out parts into
7930         set_base_and_offset and call it.
7931
7932 2018-02-20  Richard Sandiford  <richard.sandiford@linaro.org>
7933
7934         PR middle-end/84406
7935         * optabs-query.c (find_widening_optab_handler_and_mode): If from_mode
7936         is a scalar_int_mode, assert that to_mode is a scalar_int_mode with
7937         greater precision.  If to_mode is a MODE_PARTIAL_INT, stop the
7938         search at the associated MODE_INT.
7939
7940 2018-02-20  Jeff Law  <law@redhat.com>
7941
7942         PR middle-end/82123
7943         PR tree-optimization/81592
7944         PR middle-end/79257
7945         * gimple-ssa-sprintf.c (format_integer): Query EVRP range analyzer
7946         for range data rather than using global data.
7947         * gimple-ssa-sprintf.c (get_int_range): Query EVRP range analyzer for
7948         range data rather than using global data.
7949         * gimple-ssa-sprintf.c (get_int_range): Accept vr_values parameter
7950         pass it to children as needed.
7951         (struct directive::fmtresult): Similarly.
7952         (struct directive::set_width): Similarly.
7953         (struct directive::set_precision): Similarly.
7954         (format_integer, format_directive, parse_directive): Similarly.
7955         (format_none): Accept unnamed vr_values parameter.
7956         (format_percent, format_floating, format_character): Similarly.
7957         (format_string, format_plain): Similarly.
7958         * gimple-ssa-sprintf.c (sprintf_dom_walker::handle_gimple_call): Query
7959         the EVRP range analyzer for range data rather than using global data.
7960         * gimple-ssa-sprintf.c: Include alloc-pool.h, vr-values.h and
7961         gimple-ssa-evrp-analyze.h
7962         (class sprintf_dom_walker): Add after_dom_children member function.
7963         Add evrp_range_analyzer member.
7964         (sprintf_dom_walker::before_dom_children): Call into the EVRP
7965         range analyzer as needed.
7966         (sprintf_dom_walker::after_dom_children): New member function.
7967         * gimple-ssa-evrp-analyze.c (evrp_range_analyzer::enter): Do nothing
7968         if not optimizing.
7969         (evrp_range_analyzer::record_ranges_from_stmt): Likewise.
7970         (evrp_range_analyzer::pop_to_marker): Likewise.
7971
7972 2018-02-20  Richard Sandiford  <richard.sandiford@linaro.org>
7973
7974         PR tree-optimization/84419
7975         * internal-fn.c (expand_call_mem_ref): Create a TARGET_MEM_REF
7976         with the required type if its current type is compatible but
7977         different.
7978
7979 2018-02-20  Jakub Jelinek  <jakub@redhat.com>
7980
7981         PR middle-end/82004
7982         * match.pd (pow(C,x) -> exp(log(C)*x)): Delay all folding until
7983         after vectorization.
7984
7985 2018-02-20  Martin Liska  <mliska@suse.cz>
7986
7987         PR driver/83193
7988         * config/aarch64/aarch64.c (aarch64_print_hint_for_core_or_arch): Print
7989         possible values if we don't have a hint.
7990
7991 2018-02-20  Martin Liska  <mliska@suse.cz>
7992
7993         PR c/84310
7994         PR target/79747
7995         * final.c (shorten_branches): Build align_tab array with one
7996         more element.
7997         * opts.c (finish_options): Add alignment option limit check.
7998         (MAX_CODE_ALIGN): Likewise.
7999         (MAX_CODE_ALIGN_VALUE): Likewise.
8000         * doc/invoke.texi: Document maximum allowed option value for
8001         all -falign-* options.
8002
8003 2018-02-19  Jakub Jelinek  <jakub@redhat.com>
8004
8005         PR target/84146
8006         * reg-notes.def (REG_CALL_ARG_LOCATION): New reg note.
8007         * insn-notes.def (NOTE_INSN_CALL_ARG_LOCATION): Remove.
8008         * var-tracking.c (emit_note_insn_var_location): Remove all references
8009         to NOTE_INSN_CALL_ARG_LOCATION.
8010         (emit_notes_in_bb): Emit arguments as REG_CALL_ARG_LOCATION note on
8011         the CALL_INSN rather than separate NOTE_INSN_CALL_ARG_LOCATION note.
8012         Use copy_rtx_if_shared.
8013         * dwarf2out.c (gen_subprogram_die): Use XEXP with 0 instead of
8014         NOTE_VAR_LOCATION on ca_loc->call_arg_loc_note.
8015         (dwarf2out_var_location): Remove handling of
8016         NOTE_INSN_CALL_ARG_LOCATION, instead handle REG_CALL_ARG_LOCATION note
8017         on call_insn.
8018         * final.c (final_scan_insn): Remove all references to
8019         NOTE_INSN_CALL_ARG_LOCATION.
8020         (rest_of_clean_state): Likewise.  Remove REG_CALL_ARG_LOCATION notes
8021         before dumping final insns.
8022         * except.c (emit_note_eh_region_end): Remove all references to
8023         NOTE_INSN_CALL_ARG_LOCATION.
8024         * config/alpha/alpha.c (alpha_pad_function_end): Likewise.
8025         * config/c6x/c6x.c (c6x_gen_bundles): Likewise.
8026         * config/arc/arc.c (hwloop_optimize): Likewise.
8027         * config/arm/arm.c (create_fix_barrier): Likewise.
8028         * config/s390/s390.c (s390_chunkify_start): Likewise.
8029         * config/sh/sh.c (find_barrier): Likewise.
8030         * config/i386/i386.c (rest_of_insert_endbranch,
8031         ix86_seh_fixup_eh_fallthru): Likewise.
8032         * config/xtensa/xtensa.c (hwloop_optimize): Likewise.
8033         * config/iq2000/iq2000.c (final_prescan_insn): Likewise.
8034         * config/frv/frv.c (frv_function_prologue): Likewise.
8035         * emit-rtl.c (try_split): Likewise.  Copy over REG_CALL_ARG_LOCATION
8036         reg note.
8037         (note_outside_basic_block_p): Remove all references to
8038         NOTE_INSN_CALL_ARG_LOCATION.
8039         * gengtype.c (adjust_field_rtx_def): Likewise.
8040         * print-rtl.c (rtx_writer::print_rtx_operand_code_0, print_insn):
8041         Likewise.
8042         * jump.c (cleanup_barriers, delete_related_insns): Likewise.
8043         * cfgrtl.c (force_nonfallthru_and_redirect): Likewise.
8044
8045         PR c++/84444
8046         * builtins.c (builtin_mathfn_code): Don't check if CALL_EXPR_FN (t)
8047         is ADDR_EXPR.
8048
8049         PR tree-optimization/84452
8050         * tree-vect-patterns.c (vect_recog_pow_pattern): Don't call
8051         expand_simd_clones if targetm.simd_clone.compute_vecsize_and_simdlen
8052         is NULL.
8053
8054 2018-02-19  Martin Liska  <mliska@suse.cz>
8055
8056         PR sanitizer/82183
8057         * passes.def: Put pass_sancov_O0 before pass_lower_switch with -O0.
8058
8059 2018-02-19  Martin Liska  <mliska@suse.cz>
8060             Richard Sandiford  <richard.sandiford@linaro.org>
8061
8062         PR tree-optimization/82491
8063         * gimple-fold.c (get_base_constructor): Make earlier bail out
8064         to prevent ubsan.
8065
8066 2018-02-19  Carl Love  <cel@us.ibm.com>
8067
8068         * config/rs6000/rs6000-builtin.def: Change NEG macro expansions from
8069         BU_ALTIVEC_A to BU_P8V_AV_1 and BU_ALTIVEC_OVERLOAD_1 to
8070         BU_P8V_OVERLOAD_1.
8071         * config/rs6000/rs6000-c.c: Change ALTIVEC_BUILTIN_VEC_NEG to
8072         P8V_BUILTIN_VEC_NEG.
8073
8074 2018-02-19  Sebastian Perta  <sebastian.perta@renesas.com>
8075
8076         * config/rl78/rl78.md (movdf): New define expand.
8077
8078 2018-02-19  Martin Liska  <mliska@suse.cz>
8079
8080         PR other/80589
8081         * doc/invoke.texi: Fix typo.
8082         * params.def (PARAM_MAX_LOOP_HEADER_INSNS): Likewise.
8083
8084 2018-02-18  Segher Boessenkool  <segher@kernel.crashing.org>
8085
8086         * config/rs6000/rs6000.c (rs6000_option_override_internal): Don't
8087         handle rs6000_single_float and rs6000_double_float specially for
8088         e500 family CPUs.
8089
8090 2018-02-16  Jeff Law  <law@redhat.com>
8091
8092         * config/rx/rx.c (add_pop_cfi_notes): New function.;
8093         (pop_regs): Use it.
8094
8095 2018-02-16  Jakub Jelinek  <jakub@redhat.com>
8096
8097         PR ipa/84425
8098         * ipa-inline.c (inline_small_functions): Fix a typo.
8099
8100 2018-02-16  Nathan Sidwell  <nathan@acm.org>
8101
8102         * doc/extend.texi (Backwards Compatibility): Americanize 'behaviour'.
8103
8104 2018-02-16  Carl Love  <cel@us.ibm.com>
8105
8106         * config/rs6000/rs6000-builtin.def: Add BU_P8V_VSX_2 macro definition.
8107         Change FLOAT2 expansions from BU_VSX_2 to BU_P8V_VSX_2 and
8108         from BU_VSX_OVERLOAD_2 to BU_P8V_OVERLOAD_2.
8109         * config/rs6000/rs6000-c.c: Changed macro VSX_BUILTIN_VEC_FLOAT2
8110         expansion to P8V_BUILTIN_VEC_FLOAT2.
8111
8112 2018-02-16  Vladimir Makarov  <vmakarov@redhat.com>
8113
8114         PR rtl-optimization/70023
8115         * lra-constraints.c (inherit_in_ebb): Take hard reg mode of
8116         src_regno into account.
8117
8118 2018-02-16  Carl Love  <cel@us.ibm.com>
8119
8120         * config/rs6000/altivec.h: Remove vec_vextract4b and vec_vinsert4b.
8121         * config/rs6000/rs6000-builtin.def: Remove macro expansion for
8122         VEXTRACT4B, VINSERT4B, VINSERT4B_DI and VEXTRACT4B.
8123         * config/rs6000/rs6000.c: Remove case statements for
8124         P9V_BUILTIN_VEXTRACT4B, P9V_BUILTIN_VEC_VEXTRACT4B,
8125         P9V_BUILTIN_VINSERT4B, P9V_BUILTIN_VINSERT4B_DI,
8126         and P9V_BUILTIN_VEC_VINSERT4B.
8127         * config/rs6000/rs6000-c.c (altivec_expand_builtin): Remove entries for
8128         P9V_BUILTIN_VEC_VEXTRACT4B and P9V_BUILTIN_VEC_VINSERT4B.
8129         * config/rs6000/vsx.md:
8130         * doc/extend.texi: Remove vec_vextract4b, non ABI definitions for
8131         vec_insert4b.
8132
8133 2018-02-16  Carl Love  <cel@us.ibm.com>
8134
8135         * config/rs6000/altivec.h: Add builtin names vec_extract4b
8136         vec_insert4b.
8137         * config/rs6000/rs6000-builtin.def: Add INSERT4B and EXTRACT4B
8138         definitions.
8139         * config/rs6000/rs6000-c.c: Add the definitions for
8140         P9V_BUILTIN_VEC_EXTRACT4B and P9V_BUILTIN_VEC_INSERT4B.
8141         * config/rs6000/rs6000.c (altivec_expand_builtin): Add
8142         P9V_BUILTIN_EXTRACT4B and P9V_BUILTIN_INSERT4B case statements.
8143         * config/rs6000/vsx.md: Add define_insn extract4b.  Add define_expand
8144         definition for insert4b and define insn *insert3b_internal.
8145         * doc/extend.texi: Add documentation for vec_extract4b.
8146
8147 2018-02-16  Nathan Sidwell  <nathan@acm.org>
8148
8149         * doc/extend.texi (Backwards Compatibility): Mention friend
8150         injection.  Note for-scope is deprecated.
8151         * doc/invoke.texi (-ffriend-injection): Deprecate.
8152
8153 2018-02-16  Segher Boessenkool  <segher@kernel.crashing.org>
8154
8155         * combine.c (try_combine): When adjusting LOG_LINKS for the destination
8156         that moved to I2, also allow destinations that are a paradoxical
8157         subreg (instead of a normal reg).
8158
8159 2018-02-16  Oleg Endo  <olegendo@gcc.gnu.org>
8160
8161         PR target/83831
8162         * config/rx/rx.c (rx_fuse_in_memory_bitop): Convert shift operand
8163         to QImode.
8164
8165 2018-02-16  Richard Biener  <rguenther@suse.de>
8166
8167         PR tree-optimization/84037
8168         PR tree-optimization/84016
8169         PR target/82862
8170         * config/i386/i386.c (ix86_builtin_vectorization_cost):
8171         Adjust vec_construct for the fact we need additional higher latency
8172         128bit inserts for AVX256 and AVX512 vector builds.
8173         (ix86_add_stmt_cost): Scale vector construction cost for
8174         elementwise loads.
8175
8176 2018-02-16  Richard Biener  <rguenther@suse.de>
8177
8178         PR tree-optimization/84417
8179         * tree-ssa.c (non_rewritable_mem_ref_base): Properly constrain
8180         the MEM_REF offset when conversion to BIT_FIELD_REF is desired.
8181         (non_rewritable_lvalue_p): Likewise, use poly-ints.
8182
8183 2018-02-16  Martin Liska  <mliska@suse.cz>
8184
8185         PR sanitizer/84307
8186         * internal-fn.def (ASAN_CHECK): Set proper flags.
8187         (ASAN_MARK): Likewise.
8188
8189 2018-02-16  Julia Koval  <julia.koval@intel.com>
8190
8191         * config/i386/i386.c (ix86_option_override_internal): Remove PTA_CLWB
8192         from PTA_CANNONLAKE.
8193
8194 2018-02-16  Jakub Jelinek  <jakub@redhat.com>
8195
8196         PR target/84272
8197         * config/aarch64/cortex-a57-fma-steering.c (fma_forest::merge_forest):
8198         Use ++iter rather than iter++ for std::list iterators.
8199         (func_fma_steering::dfs): Likewise.  Don't delete nodes right away,
8200         defer deleting them until all nodes in the forest are processed.  Do
8201         free even leaf nodes.  Change to_process into auto_vec.
8202
8203         PR bootstrap/84405
8204         * system.h (BROKEN_VALUE_INITIALIZATION): Define for GCC < 4.3.
8205         * vec.h (vec_default_construct): Use memset instead of placement new
8206         if BROKEN_VALUE_INITIALIZATION is defined.
8207         * hash-table.h (hash_table<Descriptor, Allocator>::empty_slow): Use
8208         memset instead of value initialization if BROKEN_VALUE_INITIALIZATION
8209         is defined.
8210
8211         PR rtl-optimization/83723
8212         * lra-int.h (lra_substitute_pseudo): Add DEBUG_P argument.
8213         * lra.c (lra_substitute_pseudo): Likewise.  If true, use
8214         gen_rtx_raw_SUBREG instead of gen_rtx_SUBREG.  Pass DEBUG_P to
8215         recursive calls.
8216         (lra_substitute_pseudo_within_insn): Adjust lra_substitute_pseudo
8217         callers.
8218         * lra-constraints.c (inherit_reload_reg, split_reg): Likewise.
8219
8220 2018-02-16  Eric Botcazou  <ebotcazou@adacore.com>
8221
8222         PR rtl-optimization/81443
8223         * rtlanal.c (num_sign_bit_copies1) <SUBREG>: Do not propagate results
8224         from inner REGs to paradoxical SUBREGs.
8225
8226 2018-02-16  Richard Biener  <rguenther@suse.de>
8227
8228         PR tree-optimization/84399
8229         * graphite-scop-detection.c (scop_detection::stmt_simple_for_scop_p):
8230         For operands we can analyze at their definition make sure we can
8231         analyze them at each use as well.
8232
8233 2018-02-16  Richard Biener  <rguenther@suse.de>
8234
8235         PR tree-optimization/84190
8236         * tree-ssa.c (non_rewritable_mem_ref_base): Do not touch
8237         volatile accesses if the decl isn't volatile.
8238
8239 2018-02-15  Jason Merrill  <jason@redhat.com>
8240
8241         PR c++/84314 - ICE with templates and fastcall attribute.
8242         * attribs.c (build_type_attribute_qual_variant): Don't clobber
8243         TYPE_CANONICAL on an existing type.
8244
8245 2018-02-15  Jakub Jelinek  <jakub@redhat.com>
8246
8247         PR tree-optimization/84383
8248         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Don't look at
8249         dstoff nor call operand_equal_p if dstbase is NULL.
8250
8251         PR tree-optimization/84334
8252         * match.pd ((A +- CST1) +- CST2 -> A + CST3): If A is
8253         also a CONSTANT_CLASS_P, punt.
8254
8255 2018-02-14  Jim Wilson  <jimw@sifive.com>
8256
8257         * config/riscv/riscv.c (riscv_first_stack_step): Move locals after
8258         first SMALL_OPERAND check.  New local min_second_step.  Move assert
8259         to where locals are set.  Add TARGET_RVC support.
8260         * config/riscv/riscv.h (C_SxSP_BITS, SWSP_REACH, SDSP_REACH): New.
8261
8262 2018-02-14  Indu Bhagat  <indu.bhagat@oracle.com>
8263
8264         * doc/invoke.texi: Correct -Wformat-overflow code sample.
8265
8266 2018-02-14  Martin Sebor  <msebor@redhat.com>
8267
8268         PR tree-optimization/83698
8269         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): For
8270         arrays constrain the offset range to their bounds.
8271         (builtin_access::strcat_overlap): Adjust the bounds of overlap offset.
8272         (builtin_access::overlap): Avoid setting the size of overlap if it's
8273         already been set.
8274         (maybe_diag_overlap): Also consider arrays when deciding what values
8275         of offsets to include in diagnostics.
8276
8277 2018-02-14  Martin Sebor  <msebor@redhat.com>
8278
8279         PR c/84108
8280         * attribs.c (diag_attr_exclusions): Consider the exclusion(s)
8281         that correspond to the kind of a declaration.
8282
8283 2018-02-14  John David Anglin  <danglin@gcc.gnu.org>
8284
8285         PR target/83984
8286         * config/pa/pa.md: Load address of PIC label using the linkage table
8287         if the label is nonlocal.
8288
8289 2018-02-14  Kelvin Nilsen  <kelvin@gcc.gnu.org>
8290
8291         * config/rs6000/rs6000.c (rs6000_option_override_internal): Issue
8292         warning message if user requests -maltivec=be.
8293         * doc/invoke.texi: Document deprecation of -maltivec=be.
8294
8295 2018-02-14  Will Schmidt  <will_schmidt@vnet.ibm.com>
8296
8297         PR target/84220
8298         * config/rs6000/rs6000-c.c: Update definitions for
8299         ALTIVEC_BUILTIN_VEC_SLD, ALTIVEC_BUILTIN_VEC_SLDW,
8300         VEC_XXSLDWI and ALTIVEC_BUILTIN_VEC_XXPERMDI builtins.
8301
8302 2018-02-14  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
8303
8304         PR target/84239
8305         * config/i386/cetintrin.h: Remove _rdssp[d|q] and
8306         add _get_ssp intrinsics. Remove argument from
8307         __builtin_ia32_rdssp[d|q].
8308         * config/i386/i386-builtin-types.def: Add UINT_FTYPE_VOID.
8309         * config/i386/i386-builtin.def: Remove argument from
8310         __builtin_ia32_rdssp[d|q].
8311         * config/i386/i386.c: Use UINT_FTYPE_VOID. Use
8312         ix86_expand_special_args_builtin for _rdssp[d|q].
8313         * config/i386/i386.md: Remove argument from rdssp[si|di] insn.
8314         Clear register before usage.
8315         * doc/extend.texi: Remove argument from __builtin_ia32_rdssp[d|q].
8316         Add documentation for new _get_ssp and _inc_ssp intrinsics.
8317
8318 2018-02-14  Richard Sandiford  <richard.sandiford@linaro.org>
8319
8320         PR tree-optimization/84357
8321         * tree-data-ref.c (object_address_invariant_in_loop_p): Check
8322         operand 1 of an ARRAY_REF too.
8323
8324 2018-02-14  Oleg Endo  <olegendo@gcc.gnu.org>
8325
8326         PR target/83831
8327         * config/rx/rx-protos.h (rx_reg_dead_or_unused_after_insn,
8328         rx_copy_reg_dead_or_unused_notes, rx_fuse_in_memory_bitop): New
8329         declarations.
8330         (set_of_reg): New struct.
8331         (rx_find_set_of_reg, rx_find_use_of_reg): New functions.
8332         * config/rx/rx.c (rx_reg_dead_or_unused_after_insn,
8333         rx_copy_reg_dead_or_unused_notes, rx_fuse_in_memory_bitop): New
8334         functions.
8335         * config/rx/rx.md (andsi3, iorsi3, xorsi3): Convert to insn_and_split.
8336         Split into bitclr, bitset, bitinvert patterns if appropriate.
8337         (*bitset, *bitinvert, *bitclr): Convert to named insn_and_split and
8338         use rx_fuse_in_memory_bitop.
8339         (*bitset_in_memory, *bitinvert_in_memory, *bitclr_in_memory): Convert
8340         to named insn, correct maximum insn length.
8341
8342 2018-02-14  Jozef Lawrynowicz  <jozefl.gcc@gmail.com>
8343
8344         PR target/79242
8345         * machmode.def: Define a complex mode for PARTIAL_INT.
8346         * genmodes.c (complex_class): Return MODE_COMPLEX_INT for
8347         MODE_PARTIAL_INT.
8348         * doc/rtl.texi: Document CSPImode.
8349         * config/msp430/msp430.c (msp430_hard_regno_nregs): Add CPSImode
8350         handling.
8351         (msp430_hard_regno_nregs_with_padding): Likewise.
8352
8353 2018-02-13  Peter Bergner  <bergner@vnet.ibm.com>
8354
8355         PR target/84279
8356         * config/rs6000/rs6000.c (mem_operand_gpr): Disallow altivec addresses.
8357
8358 2018-02-13  Segher Boessenkool  <segher@kernel.crashing.org>
8359
8360         PR rtl-optimization/84169
8361         * combine.c (try_combine): New variable split_i2i3.  Set it to true if
8362         we generated a parallel as new i3 and we split that to new i2 and i3
8363         instructions.  Handle split_i2i3 similar to swap_i2i3: scan the
8364         LOG_LINKs of i3 to see which of those need to link to i2 now.  Link
8365         those to i2, not i1.  Partially rewrite this scan code.
8366
8367 2018-02-13  Jakub Jelinek  <jakub@redhat.com>
8368
8369         PR c/82210
8370         * stor-layout.c (place_field): For variable length fields, adjust
8371         offset_align afterwards not just based on the field's alignment,
8372         but also on the size.
8373
8374         PR middle-end/84309
8375         * match.pd (pow(C,x) -> exp(log(C)*x)): Use exp2s and log2s instead
8376         of exps and logs in the use_exp2 case.
8377
8378 2018-02-13  Jeff Law  <law@redhat.com>
8379
8380         * config/rl/rl78.c (rl78_attribute_table): Fix terminator and
8381         entry for "vector".
8382
8383         * config/rl78/rl78.c (rl78_handle_func_attribute): Mark
8384         ARGS as unused.
8385
8386 2018-02-13  Alexandre Oliva  <aoliva@redhat.com>
8387
8388         PR debug/84342
8389         PR debug/84319
8390         * common.opt (gas-loc-support, gas-locview-support): New.
8391         (ginline-points, ginternal-reset-location-views): New.
8392         * doc/invoke.texi: Document them.  Use @itemx where intended.
8393         (gvariable-location-views): Adjust.
8394         * target.def (reset_location_view): New.
8395         * doc/tm.texi.in (DWARF2_ASM_VIEW_DEBUG_INFO): New.
8396         (TARGET_RESET_LOCATION_VIEW): New.
8397         * doc/tm.texi: Rebuilt.
8398         * dwarf2out.c (dwarf2out_default_as_loc_support): New.
8399         (dwarf2out_default_as_locview_support): New.
8400         (output_asm_line_debug_info): Use option variables.
8401         (dwarf2out_maybe_output_loclist_view_pair): Likewise.
8402         (output_loc_list): Likewise.
8403         (add_high_low_attributes): Check option variables.
8404         Don't output entry view attribute in strict mode.
8405         (gen_inlined_subroutine_die): Check option variables.
8406         (dwarf2out_inline_entry): Likewise.
8407         (init_sections_and_labels): Likewise.
8408         (dwarf2out_early_finish): Likewise.
8409         (maybe_reset_location_view): New, from...
8410         (dwarf2out_var_location): ... here.  Call it.
8411         * debug.h (dwarf2out_default_as_loc_support): Declare.
8412         (dwarf2out_default_as_locview_support): Declare.
8413         * hooks.c (hook_int_rtx_insn_0): New.
8414         * hooks.h (hook_int_rtx_insn_0): Declare.
8415         * toplev.c (process_options): Take -gas-loc-support and
8416         -gas-locview-support from dwarf2out.  Enable
8417         -gvariable-location-views by default only with locview
8418         assembler support.  Enable -ginternal-reset-location-views by
8419         default only if the target defines the corresponding hook.
8420         Enable -ginline-points by default if location views are
8421         enabled; force it disabled if statement frontiers are
8422         disabled.
8423         * tree-inline.c (expand_call_inline): Check option variables.
8424         * tree-ssa-live.c (remove_unused_scope_block_p): Likewise.
8425
8426 2018-02-13  Richard Sandiford  <richard.sandiford@linaro.org>
8427
8428         PR tree-optimization/84321
8429         * tree-vrp.c (intersect_range_with_nonzero_bits): Fix VR_ANTI_RANGE
8430         handling.  Also check whether the anti-range contains any values
8431         that satisfy the mask; switch to a VR_RANGE if not.
8432
8433 2018-02-13  Paolo Bonzini  <bonzini@gnu.org>
8434
8435         PR sanitizer/84340
8436         * internal-fn.def (ASAN_CHECK, ASAN_MARK): Revert changes to fnspec.
8437
8438 2018-02-13  Martin Jambor  <mjambor@suse.cz>
8439
8440         PR c++/83990
8441         * ipa-param-manipulation.c (ipa_modify_call_arguments): Use location
8442         of call statements, also set location of a load to a temporary.
8443
8444 2018-02-13  Sebastian Perta  <sebastian.perta@renesas.com>
8445
8446         * config/rl78/rl78.c (add_vector_labels): New function.
8447         * config/rl78/rl78.c (rl78_handle_vector_attribute): New function.
8448         * config/rl78/rl78.c (rl78_start_function): Call add_vector_labels.
8449         * config/rl78/rl78.c (rl78_handle_func_attribute): Removed the assert
8450         which checks that no arguments are passed.
8451         * config/rl78/rl78.c (rl78_attribute_table): Add "vector" attribute.
8452         * doc/extend.texi: Documentation for the new attribute.
8453
8454 2018-02-13  Andreas Schwab  <schwab@suse.de>
8455
8456         * config/riscv/linux.h (CPP_SPEC): Define.
8457
8458 2018-02-13  Jakub Jelinek  <jakub@redhat.com>
8459
8460         PR target/84335
8461         * config/i386/i386.c (ix86_init_mmx_sse_builtins): Pass
8462         OPTION_MASK_ISA_AES | OPTION_MASK_ISA_SSE2 instead of
8463         OPTION_MASK_ISA_AES as first argument to def_builtin_const
8464         for AES builtins.  Pass OPTION_MASK_ISA_PCLMUL | OPTION_MASK_ISA_SSE2
8465         instead of OPTION_MASK_ISA_PCLMUL as first argument to
8466         def_builtin_const for __builtin_ia32_pclmulqdq128 builtin.
8467         * config/i386/wmmintrin.h: If __SSE2__ is not defined, enable it
8468         temporarily for AES and PCLMUL builtins.
8469
8470         PR tree-optimization/84339
8471         * gimple-fold.c (get_range_strlen): Set *FLEXP to true when handling
8472         ARRAY_REF where first operand is array_at_struct_end_p COMPONENT_REF.
8473         Formatting fixes.
8474
8475         PR middle-end/84309
8476         * match.pd (pow(C,x) -> exp(log(C)*x)): Optimize instead into
8477         exp2(log2(C)*x) if C is a power of 2 and c99 runtime is available.
8478         * generic-match-head.c (canonicalize_math_after_vectorization_p): New
8479         inline function.
8480         * gimple-match-head.c (canonicalize_math_after_vectorization_p): New
8481         inline function.
8482         * omp-simd-clone.h: New file.
8483         * omp-simd-clone.c: Include omp-simd-clone.h.
8484         (expand_simd_clones): No longer static.
8485         * tree-vect-patterns.c: Include fold-const-call.h, attribs.h,
8486         cgraph.h and omp-simd-clone.h.
8487         (vect_recog_pow_pattern): Optimize pow(C,x) to exp(log(C)*x).
8488         (vect_recog_widen_shift_pattern): Formatting fix.
8489         (vect_pattern_recog_1): Don't check optab for calls.
8490
8491         PR target/84336
8492         * config/i386/sse.md (<avx512>_vpermi2var<mode>3_mask): Force
8493         operands[2] into a REG before using gen_lowpart on it.
8494
8495 2018-02-12  Jeff Law  <law@redhat.com>
8496
8497         PR target/83760
8498         * config/sh/sh.c (find_barrier): Consider a sibling call
8499         a barrier as well.
8500
8501         * cse.c (try_back_substitute_reg): Move any REG_ARGS_SIZE note when
8502         successfully back substituting a reg.
8503
8504 2018-02-12  Richard Biener  <rguenther@suse.de>
8505
8506         PR tree-optimization/84037
8507         * tree-vect-slp.c (vect_analyze_slp_cost): Add visited
8508         parameter, move visited init to caller.
8509         (vect_slp_analyze_operations): Separate cost from validity
8510         check, initialize visited once for all instances.
8511         (vect_schedule_slp): Analyze map to CSE vectorized nodes once
8512         for all instances.
8513         * tree-vect-stmts.c (vect_model_simple_cost): Make early
8514         out an assert.
8515         (vect_model_promotion_demotion_cost): Likewise.
8516         (vectorizable_bswap): Guard cost modeling with !slp_node
8517         instead of !PURE_SLP_STMT to avoid double-counting on hybrid
8518         SLP stmts.
8519         (vectorizable_call): Likewise.
8520         (vectorizable_conversion): Likewise.
8521         (vectorizable_assignment): Likewise.
8522         (vectorizable_shift): Likewise.
8523         (vectorizable_operation): Likewise.
8524         (vectorizable_store): Likewise.
8525         (vectorizable_load): Likewise.
8526         (vectorizable_condition): Likewise.
8527         (vectorizable_comparison): Likewise.
8528
8529 2018-02-12  Paolo Bonzini  <bonzini@gnu.org>
8530
8531         PR sanitizer/84307
8532         * internal-fn.def (ASAN_CHECK): Fix fnspec to account for return value.
8533         (ASAN_MARK): Fix fnspec to account for return value, change pointer
8534         argument from 'R' to 'W' so that the pointed-to datum is clobbered.
8535
8536 2018-02-08  Jan Hubicka  <hubicka@ucw.cz>
8537
8538         PR middle-end/83665
8539         * params.def (inline-min-speedup): Increase from 8 to 15.
8540         (max-inline-insns-auto): Decrease from 40 to 30.
8541         * ipa-split.c (consider_split): Add some buffer for function to
8542         be considered inlining candidate.
8543         * invoke.texi (max-inline-insns-auto, inline-min-speedup): UPdate
8544         default values.
8545
8546 2018-02-12  Richard Biener  <rguenther@suse.de>
8547
8548         PR tree-optimization/84037
8549         * tree-vect-slp.c (vect_build_slp_tree_2): Try swapping the
8550         matched stmts if we cannot swap the non-matched ones.
8551
8552 2018-02-12  Olga Makhotina  <olga.makhotina@intel.com>
8553
8554         * config/i386/avx512fintrin.h (_mm_mask_scalef_round_sd,
8555         _mm_maskz_scalef_round_sd, _mm_mask_scalef_round_ss,
8556         _mm_maskz_scalef_round_ss): New intrinsics.
8557         (__builtin_ia32_scalefsd_round, __builtin_ia32_scalefss_round): Fix.
8558         * config/i386/i386-builtin.def (__builtin_ia32_scalefsd_round,
8559         __builtin_ia32_scalefss_round): Remove.
8560         (__builtin_ia32_scalefsd_mask_round,
8561         __builtin_ia32_scalefss_mask_round): New intrinsics.
8562         * config/i386/sse.md (vmscalef<mode><round_name>): Renamed to ...
8563         (vmscalef<mode><mask_scalar_name><round_scalar_name>): ... this.
8564         ((match_operand:VF_128 2 "<round_nimm_predicate>"
8565         "<round_constraint>")): Changed to ...
8566         ((match_operand:VF_128 2 "<round_scalar_nimm_predicate>"
8567         "<round_scalar_constraint>")): ... this.
8568         ("vscalef<ssescalarmodesuffix>\t{<round_op3>%2, %1, %0|
8569         %0, %1, %2<round_op3>}"): Changed to ...
8570         ("vscalef<ssescalarmodesuffix>\t{<round_scalar_mask_op3>%2, %1,
8571         %0<mask_scalar_operand3>|%0<mask_scalar_operand3>, %1,
8572         %2<round_scalar_mask_op3>}"): ... this.
8573         * config/i386/subst.md (round_scalar_nimm_predicate): New.
8574
8575 2018-02-12  Olga Makhotina  <olga.makhotina@intel.com>
8576
8577         * config/i386/avx512fintrin.h (_mm_mask_sqrt_round_sd)
8578         (_mm_maskz_sqrt_round_sd, _mm_mask_sqrt_round_ss)
8579         (_mm_maskz_sqrt_round_ss): New intrinsics.
8580         (__builtin_ia32_sqrtsd_round, __builtin_ia32_sqrtss_round): Remove.
8581         (__builtin_ia32_sqrtsd_mask_round)
8582         (__builtin_ia32_sqrtss_mask_round): New builtins.
8583         * config/i386/i386-builtin.def (__builtin_ia32_sqrtsd_round)
8584         (__builtin_ia32_sqrtss_round): Remove.
8585         (__builtin_ia32_sqrtsd_mask_round)
8586         (__builtin_ia32_sqrtss_mask_round): New builtins.
8587         * config/i386/sse.md (vmsqrt<mode>2<round_name>): Renamed to ...
8588         (vmsqrt<mode>2<mask_scalar_name><round_scalar_name>): ... this.
8589         ((match_operand:VF_128 1 "vector_operand"
8590         "xBm,<round_constraint>")): Changed to ...
8591         ((match_operand:VF_128 1 "vector_operand"
8592         "xBm,<round_scalar_constraint>")): ... this.
8593         (vsqrt<ssescalarmodesuffix>\t{<round_op3>%1, %2, %0|
8594         %0, %2, %<iptr>1<round_op3>}): Changed to ...
8595         (vsqrt<ssescalarmodesuffix>\t{<round_scalar_mask_op3>%1, %2,
8596         %0<mask_scalar_operand3>|%0<mask_scalar_operand3>, %2,
8597         %<iptr>1<round_scalar_mask_op3>}): ... this.
8598         ((set_attr "prefix" "<round_prefix>")): Changed to ...
8599         ((set_attr "prefix" "<round_scalar_prefix>")): ... this.
8600
8601 2018-02-11  Steven Munroe  <munroesj@gcc.gnu.org>
8602
8603         PR target/84266
8604         * config/rs6000/mmintrin.h (_mm_cmpeq_pi32 [_ARCH_PWR9]):
8605         Cast vec_cmpeq result to correct type.
8606         * config/rs6000/mmintrin.h (_mm_cmpgt_pi32 [_ARCH_PWR9]):
8607         Cast vec_cmpgt result to correct type.
8608
8609 2018-02-11  Alexandre Oliva  <aoliva@redhat.com>
8610
8611         * final.c (final_scan_insn_1): Renamed from...
8612         (final_scan_insn): ... this.  New wrapper, to recover
8613         seen from the outermost call in recursive ones.
8614         * config/sparc/sparc.c (output_return): Drop seen from call.
8615         (output_sibcall): Likewise.
8616         * config/visium/visium.c (output_branch): Likewise.
8617
8618 2018-02-10  John David Anglin  <danglin@gcc.gnu.org>
8619
8620         * config/pa/pa.c (hppa_profile_hook): Mark SYMBOL_REF for _mcount as
8621         function label.
8622
8623 2018-02-10  Alan Modra  <amodra@gmail.com>
8624
8625         PR target/84300
8626         * config/rs6000/rs6000.md (split_stack_return): Remove (use ..).
8627         Specify LR as an input.
8628
8629 2018-02-10  Jakub Jelinek  <jakub@redhat.com>
8630
8631         PR sanitizer/83987
8632         * omp-low.c (maybe_remove_omp_member_access_dummy_vars,
8633         remove_member_access_dummy_vars): New functions.
8634         (lower_omp_for, lower_omp_taskreg, lower_omp_target,
8635         lower_omp_1, execute_lower_omp): Use them.
8636
8637         PR rtl-optimization/84308
8638         * shrink-wrap.c (spread_components): Release todo vector.
8639
8640 2018-02-09  Vladimir Makarov  <vmakarov@redhat.com>
8641
8642         PR rtl-optimization/57193
8643         * ira-color.c (struct allocno_color_data): Add member
8644         conflict_allocno_hard_prefs.
8645         (update_conflict_allocno_hard_prefs): New.
8646         (bucket_allocno_compare_func): Add a preference based on
8647         conflict_allocno_hard_prefs.
8648         (push_allocno_to_stack): Update conflict_allocno_hard_prefs.
8649         (color_allocnos): Remove a dead code.  Initiate
8650         conflict_allocno_hard_prefs.  Call update_costs_from_prefs.
8651
8652 2018-02-09  Jakub Jelinek  <jakub@redhat.com>
8653
8654         PR target/84226
8655         * config/rs6000/vsx.md (p9_xxbrq_v16qi): Change input operand
8656         constraint from =wa to wa.  Avoid a subreg on the output operand,
8657         instead use a pseudo and subreg it in a move.
8658         (p9_xxbrd_<mode>): Changed to ...
8659         (p9_xxbrd_v2di): ... this insn, without VSX_D iterator.
8660         (p9_xxbrd_v2df): New expander.
8661         (p9_xxbrw_<mode>): Changed to ...
8662         (p9_xxbrw_v4si): ... this insn, without VSX_W iterator.
8663         (p9_xxbrw_v4sf): New expander.
8664
8665 2018-02-09  Sebastian Perta  <sebastian.perta@renesas.com>
8666
8667         * config/rx/rx.md (movsicc): Update expander to be matched by GCC.
8668
8669 2018-02-09  Peter Bergner  <bergner@vnet.ibm.com>
8670
8671         PR target/83926
8672         * config/rs6000/vsx.md (vsx_mul_v2di): Handle generating a 64-bit
8673         multiply in 32-bit mode.
8674         (vsx_div_v2di): Handle generating a 64-bit signed divide in 32-bit mode.
8675         (vsx_udiv_v2di): Handle generating a 64-bit unsigned divide in 32-bit
8676         mode.
8677
8678 2018-02-09  Sebastian Perta  <sebastian.perta@renesas.com>
8679
8680         * config/rx/constraints.md (CALL_OP_SYMBOL_REF): Added new constraint
8681         to allow or block "symbol_ref" depending on the value of TARGET_JSR.
8682         * config/rx/rx.md (call_internal): Use CALL_OP_SYMBOL_REF.
8683         * config/rx/rx.md (call_value_internal): Use CALL_OP_SYMBOL_REF.
8684
8685 2018-02-09  Pierre-Marie de Rodat  <derodat@adacore.com>
8686
8687         PR lto/84213
8688         * dwarf2out.c (is_trivial_indirect_ref): New function.
8689         (dwarf2out_late_global_decl): Do not generate a location
8690         attribute for variables that have a non-trivial DECL_VALUE_EXPR
8691         and that are not defined in the current unit.
8692
8693 2018-02-09  Eric Botcazou  <ebotcazou@adacore.com>
8694
8695         * optabs.c (prepare_cmp_insn): Try harder to emit a direct comparison
8696         instead of a libcall for UNORDERED.
8697
8698 2018-02-09  Tamar Christina  <tamar.christina@arm.com>
8699
8700         PR target/82641
8701         * config/arm/arm-c.c (arm_cpu_builtins): Un-define __ARM_FEATURE_LDREX,
8702         __ARM_ARCH_PROFILE, __ARM_ARCH_ISA_THUMB, __ARM_FP and __ARM_NEON_FP.
8703
8704 2018-02-09  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
8705
8706         PR target/PR84295
8707         * config/s390/s390.c (s390_set_current_function): Invoke
8708         s390_indirect_branch_settings also if fndecl didn't change.
8709
8710 2018-02-09  Alexandre Oliva  <aoliva@redhat.com>
8711
8712         * config/rs6000/rs6000.md (blockage): Set length to zero.
8713
8714 2018-02-09  Eric Botcazou  <ebotcazou@adacore.com>
8715
8716         * expr.c (optimize_bitfield_assignment_op): Remove obsolete assertion.
8717
8718 2018-02-09  Jakub Jelinek  <jakub@redhat.com>
8719
8720         PR sanitizer/84285
8721         * gcc.c (STATIC_LIBASAN_LIBS, STATIC_LIBTSAN_LIBS,
8722         STATIC_LIBLSAN_LIBS, STATIC_LIBUBSAN_LIBS): Handle -static like
8723         -static-lib*san.
8724
8725         PR debug/84252
8726         * var-tracking.c (vt_add_function_parameter): Punt for non-onepart
8727         PARALLEL incoming that failed vt_get_decl_and_offset check.
8728
8729         PR middle-end/84237
8730         * output.h (bss_initializer_p): Add NAMED argument, defaulted to false.
8731         * varasm.c (bss_initializer_p): Add NAMED argument, if true, ignore
8732         TREE_READONLY bit.
8733         (get_variable_section): For decls in named .bss* sections pass true as
8734         second argument to bss_initializer_p.
8735
8736 2018-02-09  Marek Polacek  <polacek@redhat.com>
8737             Jakub Jelinek  <jakub@redhat.com>
8738
8739         PR c++/83659
8740         * fold-const.c (fold_indirect_ref_1): Use VECTOR_TYPE_P macro.
8741         Formatting fixes.  Verify first that tree_fits_poly_int64_p (op01).
8742         Sync some changes from cxx_fold_indirect_ref.
8743
8744 2018-02-09  Alexandre Oliva  <aoliva@redhat.com>
8745
8746         * cfgexpand.c (expand_gimple_basic_block): Handle inline entry
8747         markers.
8748         * dwarf2out.c (dwarf2_debug_hooks): Enable inline_entry hook.
8749         (BLOCK_INLINE_ENTRY_LABEL): New.
8750         (dwarf2out_var_location): Disregard inline entry markers.
8751         (inline_entry_data): New struct.
8752         (inline_entry_data_hasher): New hashtable type.
8753         (inline_entry_data_hasher::hash): New.
8754         (inline_entry_data_hasher::equal): New.
8755         (inline_entry_data_table): New variable.
8756         (add_high_low_attributes): Add DW_AT_entry_pc and
8757         DW_AT_GNU_entry_view attributes if a pending entry is found
8758         in inline_entry_data_table.  Add old entry_pc attribute only
8759         if debug nonbinding markers are disabled.
8760         (gen_inlined_subroutine_die): Set BLOCK_DIE if nonbinding
8761         markers are enabled.
8762         (block_within_block_p, dwarf2out_inline_entry): New.
8763         (dwarf2out_finish): Check that no entries remained in
8764         inline_entry_data_table.
8765         * final.c (reemit_insn_block_notes): Handle inline entry notes.
8766         (final_scan_insn, notice_source_line): Likewise.
8767         (rest_of_clean_state): Skip inline entry markers.
8768         * gimple-pretty-print.c (dump_gimple_debug): Handle inline entry
8769         markers.
8770         * gimple.c (gimple_build_debug_inline_entry): New.
8771         * gimple.h (enum gimple_debug_subcode): Add
8772         GIMPLE_DEBUG_INLINE_ENTRY.
8773         (gimple_build_debug_inline_entry): Declare.
8774         (gimple_debug_inline_entry_p): New.
8775         (gimple_debug_nonbind_marker_p): Adjust.
8776         * insn-notes.def (INLINE_ENTRY): New.
8777         * print-rtl.c (rtx_writer::print_rtx_operand_code_0): Handle
8778         inline entry marker notes.
8779         (print_insn): Likewise.
8780         * rtl.h (NOTE_MARKER_P): Add INLINE_ENTRY support.
8781         (INSN_DEBUG_MARKER_KIND): Likewise.
8782         (GEN_RTX_DEBUG_MARKER_INLINE_ENTRY_PAT): New.
8783         * tree-inline.c (expand_call_inline): Build and insert
8784         debug_inline_entry stmt.
8785         * tree-ssa-live.c (remove_unused_scope_block_p): Preserve
8786         inline entry blocks early, if nonbind markers are enabled.
8787         (dump_scope_block): Dump fragment info.
8788         * var-tracking.c (reemit_marker_as_note): Handle inline entry note.
8789         * doc/gimple.texi (gimple_debug_inline_entry_p): New.
8790         (gimple_build_debug_inline_entry): New.
8791         * doc/invoke.texi (gstatement-frontiers, gno-statement-frontiers):
8792         Enable/disable inline entry points too.
8793         * doc/rtl.texi (NOTE_INSN_INLINE_ENTRY): New.
8794         (DEBUG_INSN): Describe inline entry markers.
8795
8796         * common.opt (gvariable-location-views): New.
8797         (gvariable-location-views=incompat5): New.
8798         * config.in: Rebuilt.
8799         * configure: Rebuilt.
8800         * configure.ac: Test assembler for view support.
8801         * dwarf2asm.c (dw2_asm_output_symname_uleb128): New.
8802         * dwarf2asm.h (dw2_asm_output_symname_uleb128): Declare.
8803         * dwarf2out.c (var_loc_view): New typedef.
8804         (struct dw_loc_list_struct): Add vl_symbol, vbegin, vend.
8805         (dwarf2out_locviews_in_attribute): New.
8806         (dwarf2out_locviews_in_loclist): New.
8807         (dw_val_equal_p): Compare val_view_list of dw_val_class_view_lists.
8808         (enum dw_line_info_opcode): Add LI_adv_address.
8809         (struct dw_line_info_table): Add view.
8810         (RESET_NEXT_VIEW, RESETTING_VIEW_P): New macros.
8811         (DWARF2_ASM_VIEW_DEBUG_INFO): Define default.
8812         (zero_view_p): New variable.
8813         (ZERO_VIEW_P): New macro.
8814         (output_asm_line_debug_info): New.
8815         (struct var_loc_node): Add view.
8816         (add_AT_view_list, AT_loc_list): New.
8817         (add_var_loc_to_decl): Add view param.  Test it against last.
8818         (new_loc_list): Add view params.  Record them.
8819         (AT_loc_list_ptr): Handle loc and view lists.
8820         (view_list_to_loc_list_val_node): New.
8821         (print_dw_val): Handle dw_val_class_view_list.
8822         (size_of_die): Likewise.
8823         (value_format): Likewise.
8824         (loc_list_has_views): New.
8825         (gen_llsym): Set vl_symbol too.
8826         (maybe_gen_llsym, skip_loc_list_entry): New.
8827         (dwarf2out_maybe_output_loclist_view_pair): New.
8828         (output_loc_list): Output view list or entries too.
8829         (output_view_list_offset): New.
8830         (output_die): Handle dw_val_class_view_list.
8831         (output_dwarf_version): New.
8832         (output_compilation_unit_header): Use it.
8833         (output_skeleton_debug_sections): Likewise.
8834         (output_rnglists, output_line_info): Likewise.
8835         (output_pubnames, output_aranges): Update version comments.
8836         (output_one_line_info_table): Output view numbers in asm comments.
8837         (dw_loc_list): Determine current endview, pass it to new_loc_list.
8838         Call maybe_gen_llsym.
8839         (loc_list_from_tree_1): Adjust.
8840         (add_AT_location_description): Create view list attribute if
8841         needed, check it's absent otherwise.
8842         (convert_cfa_to_fb_loc_list): Adjust.
8843         (maybe_emit_file): Call output_asm_line_debug_info for test.
8844         (dwarf2out_var_location): Reset views as needed.  Precompute
8845         add_var_loc_to_decl args.  Call get_attr_min_length only if we have the
8846         attribute.  Set view.
8847         (new_line_info_table): Reset next view.
8848         (set_cur_line_info_table): Call output_asm_line_debug_info for test.
8849         (dwarf2out_source_line): Likewise.  Output view resets and labels to
8850         the assembler, or select appropriate line info opcodes.
8851         (prune_unused_types_walk_attribs): Handle dw_val_class_view_list.
8852         (optimize_string_length): Catch it.  Adjust.
8853         (resolve_addr): Copy vl_symbol along with ll_symbol.  Handle
8854         dw_val_class_view_list, and remove it if no longer needed.
8855         (hash_loc_list): Hash view numbers.
8856         (loc_list_hasher::equal): Compare them.
8857         (optimize_location_lists): Check whether a view list symbol is
8858         needed, and whether the locview attribute is present, and
8859         whether they match.  Remove the locview attribute if no longer
8860         needed.
8861         (index_location_lists): Call skip_loc_list_entry for test.
8862         (dwarf2out_finish): Call output_asm_line_debug_info for test.
8863         Use output_dwarf_version.
8864         * dwarf2out.h (enum dw_val_class): Add dw_val_class_view_list.
8865         (struct dw_val_node): Add val_view_list.
8866         * final.c (SEEN_NEXT_VIEW): New.
8867         (set_next_view_needed): New.
8868         (clear_next_view_needed): New.
8869         (maybe_output_next_view): New.
8870         (final_start_function): Rename to...
8871         (final_start_function_1): ... this.  Take pointer to FIRST,
8872         add SEEN parameter.  Emit param bindings in the initial view.
8873         (final_start_function): Reintroduce SEEN-less interface.
8874         (final): Rename to...
8875         (final_1): ... this.  Take SEEN parameter.  Output final pending
8876         next view at the end.
8877         (final): Reintroduce seen-less interface.
8878         (final_scan_insn): Output pending next view before switching
8879         sections or ending a block.  Mark the next view as needed when
8880         outputting variable locations.  Notify debug backend of section
8881         changes, and of location view changes.
8882         (rest_of_handle_final): Adjust.
8883         * toplev.c (process_options): Autodetect value for debug variable
8884         location views option.  Warn on incompat5 without -gdwarf-5.
8885         * doc/invoke.texi (gvariable-location-views): New.
8886         (gvariable-location-views=incompat5): New.
8887         (gno-variable-location-views): New.
8888
8889 2018-02-08  David Malcolm  <dmalcolm@redhat.com>
8890
8891         PR tree-optimization/84136
8892         * tree-cfg.c (find_taken_edge_computed_goto): Remove assertion
8893         that the result of find_edge is non-NULL.
8894
8895 2018-02-08  Sergey Shalnov  <sergey.shalnov@intel.com>
8896
8897         PR target/83008
8898         * config/i386/x86-tune-costs.h (skylake_cost): Fix cost of
8899         storing integer register in SImode.  Fix cost of 256 and 512
8900         byte aligned SSE register store.
8901
8902 2018-02-08  Sergey Shalnov  <sergey.shalnov@intel.com>
8903
8904         * config/i386/i386.c (ix86_multiplication_cost): Fix
8905         multiplication cost for TARGET_AVX512DQ.
8906
8907 2018-02-08  Marek Polacek  <polacek@redhat.com>
8908
8909         PR tree-optimization/84238
8910         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Verify the result of
8911         get_range_strlen.
8912
8913 2018-02-08  Richard Sandiford  <richard.sandiford@linaro.org>
8914
8915         PR tree-optimization/84265
8916         * tree-vect-stmts.c (vectorizable_store): Don't treat
8917         VMAT_CONTIGUOUS accesses as grouped.
8918         (vectorizable_load): Likewise.
8919
8920 2018-02-08  Richard Sandiford  <richard.sandiford@linaro.org>
8921
8922         PR tree-optimization/81635
8923         * wide-int.h (wi::round_down_for_mask, wi::round_up_for_mask): Declare.
8924         * wide-int.cc (wi::round_down_for_mask, wi::round_up_for_mask)
8925         (test_round_for_mask): New functions.
8926         (wide_int_cc_tests): Call test_round_for_mask.
8927         * tree-vrp.h (intersect_range_with_nonzero_bits): Declare.
8928         * tree-vrp.c (intersect_range_with_nonzero_bits): New function.
8929         * tree-data-ref.c (split_constant_offset_1): Use it to refine the
8930         range returned by get_range_info.
8931
8932 2018-02-08  Jan Hubicka  <hubicka@ucw.cz>
8933
8934         PR ipa/81360
8935         * cgraph.h (symtab_node::output_to_lto_symbol_table_p): Declare
8936         * symtab.c: Include builtins.h
8937         (symtab_node::output_to_lto_symbol_table_p): Move here
8938         from lto-streamer-out.c:output_symbol_p.
8939         * lto-streamer-out.c (write_symbol): Turn early exit to assert.
8940         (output_symbol_p): Move all logic to symtab.c
8941         (produce_symtab): Update.
8942
8943 2018-02-08  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
8944
8945         * config/s390/s390-opts.h (enum indirect_branch): Define.
8946         * config/s390/s390-protos.h (s390_return_addr_from_memory)
8947         (s390_indirect_branch_via_thunk)
8948         (s390_indirect_branch_via_inline_thunk): Add function prototypes.
8949         (enum s390_indirect_branch_type): Define.
8950         * config/s390/s390.c (struct s390_frame_layout, struct
8951         machine_function): Remove.
8952         (indirect_branch_prez10thunk_mask, indirect_branch_z10thunk_mask)
8953         (indirect_branch_table_label_no, indirect_branch_table_name):
8954         Define variables.
8955         (INDIRECT_BRANCH_NUM_OPTIONS): Define macro.
8956         (enum s390_indirect_branch_option): Define.
8957         (s390_return_addr_from_memory): New function.
8958         (s390_handle_string_attribute): New function.
8959         (s390_attribute_table): Add new attribute handler.
8960         (s390_execute_label): Handle UNSPEC_EXECUTE_JUMP patterns.
8961         (s390_indirect_branch_via_thunk): New function.
8962         (s390_indirect_branch_via_inline_thunk): New function.
8963         (s390_function_ok_for_sibcall): When jumping via thunk disallow
8964         sibling call optimization for non z10 compiles.
8965         (s390_emit_call): Force indirect branch target to be a single
8966         register.  Add r1 clobber for non-z10 compiles.
8967         (s390_emit_epilogue): Emit return jump via return_use expander.
8968         (s390_reorg): Handle JUMP_INSNs as execute targets.
8969         (s390_option_override_internal): Perform validity checks for the
8970         new command line options.
8971         (s390_indirect_branch_attrvalue): New function.
8972         (s390_indirect_branch_settings): New function.
8973         (s390_set_current_function): Invoke s390_indirect_branch_settings.
8974         (s390_output_indirect_thunk_function):  New function.
8975         (s390_code_end): Implement target hook.
8976         (s390_case_values_threshold): Implement target hook.
8977         (TARGET_ASM_CODE_END, TARGET_CASE_VALUES_THRESHOLD): Define target
8978         macros.
8979         * config/s390/s390.h (struct s390_frame_layout)
8980         (struct machine_function): Move here from s390.c.
8981         (TARGET_INDIRECT_BRANCH_NOBP_RET)
8982         (TARGET_INDIRECT_BRANCH_NOBP_JUMP)
8983         (TARGET_INDIRECT_BRANCH_NOBP_JUMP_THUNK)
8984         (TARGET_INDIRECT_BRANCH_NOBP_JUMP_INLINE_THUNK)
8985         (TARGET_INDIRECT_BRANCH_NOBP_CALL)
8986         (TARGET_DEFAULT_INDIRECT_BRANCH_TABLE)
8987         (TARGET_INDIRECT_BRANCH_THUNK_NAME_EXRL)
8988         (TARGET_INDIRECT_BRANCH_THUNK_NAME_EX)
8989         (TARGET_INDIRECT_BRANCH_TABLE): Define macros.
8990         * config/s390/s390.md (UNSPEC_EXECUTE_JUMP)
8991         (INDIRECT_BRANCH_THUNK_REGNUM): Define constants.
8992         (mnemonic attribute): Add values which aren't recognized
8993         automatically.
8994         ("*cjump_long", "*icjump_long", "*basr", "*basr_r"): Disable
8995         pattern for branch conversion.  Fix mnemonic attribute.
8996         ("*c<code>", "*sibcall_br", "*sibcall_value_br", "*return"): Emit
8997         indirect branch via thunk if requested.
8998         ("indirect_jump", "<code>"): Expand patterns for branch conversion.
8999         ("*indirect_jump"): Disable for branch conversion using out of
9000         line thunks.
9001         ("indirect_jump_via_thunk<mode>_z10")
9002         ("indirect_jump_via_thunk<mode>")
9003         ("indirect_jump_via_inlinethunk<mode>_z10")
9004         ("indirect_jump_via_inlinethunk<mode>", "*casesi_jump")
9005         ("casesi_jump_via_thunk<mode>_z10", "casesi_jump_via_thunk<mode>")
9006         ("casesi_jump_via_inlinethunk<mode>_z10")
9007         ("casesi_jump_via_inlinethunk<mode>", "*basr_via_thunk<mode>_z10")
9008         ("*basr_via_thunk<mode>", "*basr_r_via_thunk_z10")
9009         ("*basr_r_via_thunk", "return<mode>_prez10"): New pattern.
9010         ("*indirect2_jump"): Disable for branch conversion.
9011         ("casesi_jump"): Turn into expander and expand patterns for branch
9012         conversion.
9013         ("return_use"): New expander.
9014         ("*return"): Emit return via thunk and rename it to ...
9015         ("*return<mode>"): ... this one.
9016         * config/s390/s390.opt: Add new options and and enum for the
9017         option values.
9018
9019 2018-02-08  Richard Sandiford  <richard.sandiford@linaro.org>
9020
9021         * lra-constraints.c (match_reload): Unconditionally use
9022         gen_lowpart_SUBREG, rather than selecting between that
9023         and equivalent gen_rtx_SUBREG code.
9024
9025 2018-02-08  Richard Biener  <rguenther@suse.de>
9026
9027         PR tree-optimization/84233
9028         * tree-ssa-phiprop.c (propagate_with_phi): Use separate
9029         changed flag instead of boguously re-using phi_inserted.
9030
9031 2018-02-08  Martin Jambor  <mjambor@suse.cz>
9032
9033         * hsa-gen.c (get_symbol_for_decl): Set program allocation for
9034         static local variables.
9035
9036 2018-02-08  Richard Biener  <rguenther@suse.de>
9037
9038         PR tree-optimization/84278
9039         * tree-vect-stmts.c (vectorizable_store): When looking for
9040         smaller vector types to perform grouped strided loads/stores
9041         make sure the mode is supported by the target.
9042         (vectorizable_load): Likewise.
9043
9044 2018-02-08  Wilco Dijkstra  <wdijkstr@arm.com>
9045
9046         * config/aarch64/aarch64.c (aarch64_components_for_bb):
9047         Increase LDP/STP opportunities by adding adjacent callee-saves.
9048
9049 2018-02-08  Wilco Dijkstra  <wdijkstr@arm.com>
9050
9051         PR rtl-optimization/84068
9052         PR rtl-optimization/83459
9053         * haifa-sched.c (rank_for_schedule): Fix SCHED_PRESSURE_MODEL sorting.
9054
9055 2018-02-08  Aldy Hernandez  <aldyh@redhat.com>
9056
9057         PR tree-optimization/84224
9058         * gimple-ssa-warn-alloca.c (pass_walloca::execute): Remove assert.
9059         * calls.c (gimple_alloca_call_p): Only return TRUE when we have
9060         non-zero arguments.
9061
9062 2018-02-07  Iain Sandoe  <iain@codesourcery.com>
9063
9064         PR target/84113
9065         * config/rs6000/altivec.md (*restore_world): Remove LR use.
9066         * config/rs6000/predicates.md (restore_world_operation): Adjust op
9067         count, remove one USE.
9068
9069 2018-02-07  Michael Meissner  <meissner@linux.vnet.ibm.com>
9070
9071         * doc/install.texi (Configuration): Document the
9072         --with-long-double-format={ibm,ieee} PowerPC configuration
9073         options.
9074
9075         PR target/84154
9076         * config/rs6000/rs6000.md (fix_trunc<SFDF:mode><QHI:mode>2):
9077         Convert from define_expand to be define_insn_and_split.  Rework
9078         float/double/_Float128 conversions to QI/HI/SImode to work with
9079         both ISA 2.07 (power8) or ISA 3.0 (power9).  Fix regression where
9080         conversions to QI/HImode types did a store and then a load to
9081         truncate the value.  For conversions to VSX registers, don't split
9082         the insn, instead emit the code directly.  Use the code iterator
9083         any_fix to combine signed and unsigned conversions.
9084         (fix<uns>_trunc<SFDF:mode>si2_p8): Likewise.
9085         (fixuns_trunc<SFDF:mode><QHI:mode>2): Likewise.
9086         (fix_trunc<IEEE128:mode><QHI:mode>2): Likewise.
9087         (fix<uns>_trunc<SFDF:mode><QHI:mode>2): Likewise.
9088         (fix_<mode>di2_hw): Likewise.
9089         (fixuns_<mode>di2_hw): Likewise.
9090         (fix_<mode>si2_hw): Likewise.
9091         (fixuns_<mode>si2_hw): Likewise.
9092         (fix<uns>_<IEEE128:mode><SDI:mode>2_hw): Likewise.
9093         (fix<uns>_trunc<IEEE128:mode><QHI:mode>2): Likewise.
9094         (fctiw<u>z_<mode>_smallint): Rename fctiw<u>z_<mode>_smallint to
9095         fix<uns>_trunc<SFDF:mode>si2_p8.
9096         (fix_trunc<SFDF:mode><QHI:mode>2_internal): Delete, no longer used.
9097         (fixuns_trunc<SFDF:mode><QHI:mode>2_internal): Likewise.
9098         (fix<uns>_<mode>_mem): Likewise.
9099         (fctiw<u>z_<mode>_mem): Likewise.
9100         (fix<uns>_<mode>_mem): Likewise.
9101         (fix<uns>_trunc<SFDF:mode><QHSI:mode>2_mem): On ISA 3.0, prevent
9102         the register allocator from doing a direct move to the GPRs to do
9103         a store, and instead use the ISA 3.0 store byte/half-word from
9104         vector register instruction.  For IEEE 128-bit floating point,
9105         also optimize stores of 32-bit ints.
9106         (fix<uns>_trunc<IEEE128:mode><QHSI:mode>2_mem): Likewise.
9107
9108 2018-02-07  Alan Hayward  <alan.hayward@arm.com>
9109
9110         * genextract.c (push_pathstr_operand): New function to support
9111         [a-zA-Z].
9112         (walk_rtx): Call push_pathstr_operand.
9113         (print_path): Support [a-zA-Z].
9114
9115 2018-02-07  Richard Biener  <rguenther@suse.de>
9116
9117         PR tree-optimization/84037
9118         * tree-vectorizer.h (struct _loop_vec_info): Add ivexpr_map member.
9119         (cse_and_gimplify_to_preheader): Declare.
9120         (vect_get_place_in_interleaving_chain): Likewise.
9121         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
9122         ivexpr_map.
9123         (_loop_vec_info::~_loop_vec_info): Delete it.
9124         (cse_and_gimplify_to_preheader): New function.
9125         * tree-vect-slp.c (vect_get_place_in_interleaving_chain): Export.
9126         * tree-vect-stmts.c (vectorizable_store): CSE base and steps.
9127         (vectorizable_load): Likewise.  For grouped stores always base
9128         the IV on the first element.
9129         * tree-vect-loop-manip.c (vect_loop_versioning): Unshare versioning
9130         condition before gimplifying.
9131
9132 2018-02-07  Jakub Jelinek  <jakub@redhat.com>
9133
9134         * tree-eh.c (operation_could_trap_helper_p): Ignore honor_trapv for
9135         *DIV_EXPR and *MOD_EXPR.
9136
9137 2018-02-07  H.J. Lu  <hongjiu.lu@intel.com>
9138
9139         PR target/84248
9140         * config/i386/i386.c (ix86_option_override_internal): Mask out
9141         the CF_SET bit when checking -fcf-protection.
9142
9143 2018-02-07  Tom de Vries  <tom@codesourcery.com>
9144
9145         PR libgomp/84217
9146         * omp-expand.c (expand_oacc_collapse_init): Ensure diff_type is large
9147         enough.
9148
9149 2018-02-07  Richard Biener  <rguenther@suse.de>
9150
9151         PR tree-optimization/84204
9152         * tree-chrec.c (chrec_fold_plus_1): Remove size limiting in
9153         this place.
9154
9155         PR tree-optimization/84205
9156         * graphite-isl-ast-to-gimple.c (binary_op_to_tree): Also
9157         special-case isl_ast_op_zdiv_r.
9158
9159         PR tree-optimization/84223
9160         * graphite-scop-detection.c (gather_bbs::before_dom_children):
9161         Only add conditions from within the region.
9162         (gather_bbs::after_dom_children): Adjust.
9163
9164 2018-02-07  Georg-Johann Lay  <avr@gjlay.de>
9165
9166         PR target/84209
9167         * config/avr/avr.h (GENERAL_REGNO_P, GENERAL_REG_P): New macros.
9168         * config/avr/avr.md: Only post-reload split REG-REG moves if
9169         either register is GENERAL_REG_P.
9170
9171 2018-02-07  Jakub Jelinek  <jakub@redhat.com>
9172
9173         PR tree-optimization/84235
9174         * tree-ssa-scopedtables.c
9175         (avail_exprs_stack::simplify_binary_operation): Fir MINUS_EXPR, punt
9176         if the subtraction is performed in floating point type where NaNs are
9177         honored.  For *DIV_EXPR, punt for ALL_FRACT_MODE_Ps where we can't
9178         build 1.  Formatting fix.
9179
9180 2018-02-06  Jakub Jelinek  <jakub@redhat.com>
9181
9182         PR target/84146
9183         * config/i386/i386.c (rest_of_insert_endbranch): Only skip
9184         NOTE_INSN_CALL_ARG_LOCATION after a call, not anything else,
9185         and skip it regardless of bb boundaries.  Use CALL_P macro,
9186         don't test INSN_P (insn) together with CALL_P or JUMP_P check
9187         unnecessarily, formatting fix.
9188
9189 2018-02-06  Michael Collison  <michael.collison@arm.com>
9190
9191         * config/arm/thumb2.md:
9192         (*thumb2_mov_negscc): Split only if TARGET_THUMB2 && !arm_restrict_it.
9193         (*thumb_mov_notscc): Ditto.
9194
9195 2018-02-06  Michael Meissner  <meissner@linux.vnet.ibm.com>
9196
9197         PR target/84154
9198         * config/rs6000/rs6000.md (su code attribute): Use "u" for
9199         unsigned_fix, not "s".
9200
9201 2018-02-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
9202
9203         * configure.ac (gcc_fn_eh_frame_ro): New function.
9204         (gcc_cv_as_cfi_directive): Check both 32 and 64-bit assembler for
9205         correct .eh_frame permissions.
9206         * configure: Regenerate.
9207
9208 2018-02-06  Andrew Jenner  <andrew@codeourcery.com>
9209
9210         * doc/invoke.texi: Add section for the PowerPC SPE backend. Remove
9211         irrelevant options.
9212
9213 2018-02-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
9214
9215         * config/rs6000/rs6000.c (rs6000_option_override_internal):
9216         Display warning message for -mno-speculate-indirect-jumps.
9217
9218 2018-02-06  Andrew Jenner  <andrew@codesourcery.com>
9219
9220         * config/powerpcspe/powerpcspe.opt: (msimple-fpu, mfpu) Add
9221         Undocumented.
9222         * config/powerpcspe/sysv4.opt (mbit-align): Likewise.
9223
9224 2018-02-06  Aldy Hernandez  <aldyh@redhat.com>
9225
9226         PR tree-optimization/84225
9227         * tree-eh.c (find_trapping_overflow): Only call
9228         operation_no_trapping_overflow when ANY_INTEGRAL_TYPE_P.
9229
9230 2018-02-06  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
9231
9232         PR target/84145
9233         * config/i386/i386.c: Reimplement the check of possible options
9234         -mibt/-mshstk conbination. Change error messages.
9235         * doc/invoke.texi: Fix a typo: remove extra '='.
9236
9237 2018-02-06  Marek Polacek  <polacek@redhat.com>
9238
9239         PR tree-optimization/84228
9240         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Skip debug statements.
9241
9242 2018-02-06  Tamar Christina  <tamar.christina@arm.com>
9243
9244         PR target/82641
9245         * config/arm/arm.c (arm_print_asm_arch_directives): Record already
9246         emitted arch directives.
9247         * config/arm/arm-c.c (arm_cpu_builtins): Undefine __ARM_ARCH and
9248         __ARM_FEATURE_COPROC before changing architectures.
9249
9250 2018-02-06  Richard Biener  <rguenther@suse.de>
9251
9252         * config/i386/i386.c (print_reg): Fix typo.
9253         (ix86_loop_unroll_adjust): Do not unroll beyond the original nunroll.
9254
9255 2018-02-06  Eric Botcazou  <ebotcazou@adacore.com>
9256
9257         * configure: Regenerate.
9258
9259 2018-02-05  Martin Sebor  <msebor@redhat.com>
9260
9261         PR tree-optimization/83369
9262         * tree-ssa-ccp.c (pass_post_ipa_warn::execute): Use %G to print
9263         inlining context.
9264
9265 2018-02-05  Martin Liska  <mliska@suse.cz>
9266
9267         * doc/invoke.texi: Cherry-pick upstream r323995.
9268
9269 2018-02-05  Richard Sandiford  <richard.sandiford@linaro.org>
9270
9271         * ira.c (ira_init_register_move_cost): Adjust comment.
9272
9273 2018-02-05  Martin Liska  <mliska@suse.cz>
9274
9275         PR gcov-profile/84137
9276         * doc/gcov.texi: Fix typo in documentation.
9277
9278 2018-02-05  Martin Liska  <mliska@suse.cz>
9279
9280         PR gcov-profile/83879
9281         * doc/gcov.texi: Document necessity of --dynamic-list-data when
9282         using dlopen functionality.
9283
9284 2018-02-05  Olga Makhotina  <olga.makhotina@intel.com>
9285
9286         * config/i386/avx512dqintrin.h (_mm_mask_range_sd, _mm_maskz_range_sd,
9287         _mm_mask_range_round_sd, _mm_maskz_range_round_sd, _mm_mask_range_ss,
9288         _mm_maskz_range_ss, _mm_mask_range_round_ss,
9289         _mm_maskz_range_round_ss): New intrinsics.
9290         (__builtin_ia32_rangesd128_round)
9291         (__builtin_ia32_rangess128_round): Remove.
9292         (__builtin_ia32_rangesd128_mask_round,
9293         __builtin_ia32_rangess128_mask_round): New builtins.
9294         * config/i386/i386-builtin.def (__builtin_ia32_rangesd128_round,
9295         __builtin_ia32_rangess128_round): Remove.
9296         (__builtin_ia32_rangesd128_mask_round,
9297         __builtin_ia32_rangess128_mask_round): New builtins.
9298         * config/i386/sse.md (ranges<mode><round_saeonly_name>): Renamed to ...
9299         (ranges<mode><mask_scalar_name><round_saeonly_scalar_name>): ... this.
9300         ((match_operand:VF_128 2 "<round_saeonly_nimm_predicate>"
9301         "<round_saeonly_constraint>")): Changed to ...
9302         ((match_operand:VF_128 2 "<round_saeonly_scalar_nimm_predicate>"
9303         "<round_saeonly_scalar_constraint>")): ... this.
9304         ("vrange<ssescalarmodesuffix>\t{%3, <round_saeonly_op4>%2, %1, %0|
9305         %0, %1, %2<round_saeonly_op4>, %3}"): Changed to ...
9306         ("vrange<ssescalarmodesuffix>\t{%3, <round_saeonly_scalar_mask_op4>%2,
9307         %1, %0<mask_scalar_operand4>|%0<mask_scalar_operand4>, %1,
9308         %2<round_saeonly_scalar_mask_op4>, %3}"): ... this.
9309
9310 2018-02-02  Andrew Jenner  <andrew@codesourcery.com>
9311
9312         * config/powerpcspe/powerpcspe.opt: Add Undocumented to irrelevant
9313         options.
9314         * config/powerpcspe/powerpcspe-tables.opt (rs6000_cpu_opt_value):
9315         Remove all values except native, 8540 and 8548.
9316
9317 2018-02-02  H.J. Lu  <hongjiu.lu@intel.com>
9318
9319         * config/i386/i386.c (ix86_output_function_return): Pass
9320         INVALID_REGNUM, instead of -1, as invalid register number to
9321         indirect_thunk_name and output_indirect_thunk.
9322
9323 2018-02-02  Julia Koval  <julia.koval@intel.com>
9324
9325         * config.gcc: Add -march=icelake.
9326         * config/i386/driver-i386.c (host_detect_local_cpu): Detect icelake.
9327         * config/i386/i386-c.c (ix86_target_macros_internal): Handle icelake.
9328         * config/i386/i386.c (processor_costs): Add m_ICELAKE.
9329         (PTA_ICELAKE, PTA_AVX512VNNI, PTA_GFNI, PTA_VAES, PTA_AVX512VBMI2,
9330         PTA_VPCLMULQDQ, PTA_RDPID, PTA_AVX512BITALG): New.
9331         (processor_target_table): Add icelake.
9332         (ix86_option_override_internal): Handle new PTAs.
9333         (get_builtin_code_for_version): Handle icelake.
9334         (M_INTEL_COREI7_ICELAKE): New.
9335         (fold_builtin_cpu): Handle icelake.
9336         * config/i386/i386.h (TARGET_ICELAKE, PROCESSOR_ICELAKE): New.
9337         * doc/invoke.texi: Add -march=icelake.
9338
9339 2018-02-02  Julia Koval  <julia.koval@intel.com>
9340
9341         * config/i386/i386.c (ix86_option_override_internal): Change flags type
9342         to wide_int_bitmask.
9343         * wide-int-bitmask.h: New.
9344
9345 2018-02-02  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
9346
9347         PR target/84066
9348         * config/i386/i386.md: Replace Pmode with word_mode in
9349         builtin_setjmp_setup and builtin_longjmp to support x32.
9350
9351 2018-02-01  Peter Bergner  <bergner@vnet.ibm.com>
9352
9353         PR target/56010
9354         PR target/83743
9355         * config/rs6000/driver-rs6000.c: #include "diagnostic.h".
9356         #include "opts.h".
9357         (rs6000_supported_cpu_names): New static variable.
9358         (linux_cpu_translation_table): Likewise.
9359         (elf_platform) <cpu>: Define new static variable and use it.
9360         Translate kernel AT_PLATFORM name to canonical name if needed.
9361         Error if platform name is unknown.
9362
9363 2018-02-01  Aldy Hernandez  <aldyh@redhat.com>
9364
9365         PR target/84089
9366         * config/pa/predicates.md (base14_operand): Handle E_VOIDmode.
9367
9368 2018-02-01  Jeff Law  <law@redhat.com>
9369
9370         PR target/84128
9371         * config/i386/i386.c (release_scratch_register_on_entry): Add new
9372         OFFSET and RELEASE_VIA_POP arguments.  Use SP+OFFSET to restore
9373         the scratch if RELEASE_VIA_POP is false.
9374         (ix86_adjust_stack_and_probe_stack_clash): Un-constify SIZE.
9375         If we have to save a temporary register, decrement SIZE appropriately.
9376         Pass new arguments to release_scratch_register_on_entry.
9377         (ix86_adjust_stack_and_probe): Likewise.
9378         (ix86_emit_probe_stack_range): Pass new arguments to
9379         release_scratch_register_on_entry.
9380
9381 2018-02-01  Uros Bizjak  <ubizjak@gmail.com>
9382
9383         PR rtl-optimization/84157
9384         * combine.c (change_zero_ext): Use REG_P predicate in
9385         front of HARD_REGISTER_P predicate.
9386
9387 2018-02-01  Georg-Johann Lay  <avr@gjlay.de>
9388
9389         * config/avr/avr.c (avr_option_override): Move disabling of
9390         -fdelete-null-pointer-checks to...
9391         * common/config/avr/avr-common.c (avr_option_optimization_table):
9392         ...here.
9393
9394 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
9395
9396         PR tree-optimization/81635
9397         * tree-data-ref.c (split_constant_offset_1): For types that
9398         wrap on overflow, try to use range info to prove that wrapping
9399         cannot occur.
9400
9401 2018-02-01  Renlin Li  <renlin.li@arm.com>
9402
9403         PR target/83370
9404         * config/aarch64/aarch64.c (aarch64_class_max_nregs): Handle
9405         TAILCALL_ADDR_REGS.
9406         (aarch64_register_move_cost): Likewise.
9407         * config/aarch64/aarch64.h (reg_class): Rename CALLER_SAVE_REGS to
9408         TAILCALL_ADDR_REGS.
9409         (REG_CLASS_NAMES): Likewise.
9410         (REG_CLASS_CONTENTS): Rename CALLER_SAVE_REGS to
9411         TAILCALL_ADDR_REGS. Remove IP registers.
9412         * config/aarch64/aarch64.md (Ucs): Update register constraint.
9413
9414 2018-02-01  Richard Biener  <rguenther@suse.de>
9415
9416         * domwalk.h (dom_walker::dom_walker): Add additional constructor
9417         for specifying RPO order and allow NULL for that.
9418         * domwalk.c (dom_walker::dom_walker): Likewise.
9419         (dom_walker::walk): Handle NULL RPO order.
9420         * tree-into-ssa.c (rewrite_dom_walker): Do not walk dom children
9421         in RPO order.
9422         (rewrite_update_dom_walker): Likewise.
9423         (mark_def_dom_walker): Likewise.
9424
9425 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
9426
9427         * config/aarch64/aarch64-protos.h (aarch64_split_sve_subreg_move)
9428         (aarch64_maybe_expand_sve_subreg_move): Declare.
9429         * config/aarch64/aarch64.md (UNSPEC_REV_SUBREG): New unspec.
9430         * config/aarch64/predicates.md (aarch64_any_register_operand): New
9431         predicate.
9432         * config/aarch64/aarch64-sve.md (mov<mode>): Optimize subreg moves
9433         that are semantically a reverse operation.
9434         (*aarch64_sve_mov<mode>_subreg_be): New pattern.
9435         * config/aarch64/aarch64.c (aarch64_maybe_expand_sve_subreg_move):
9436         (aarch64_replace_reg_mode, aarch64_split_sve_subreg_move): New
9437         functions.
9438         (aarch64_can_change_mode_class): For big-endian, forbid changes
9439         between two SVE modes if they have different element sizes.
9440
9441 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
9442
9443         * config/aarch64/aarch64.c (aarch64_expand_sve_const_vector): Prefer
9444         the TImode handling for big-endian targets.
9445
9446 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
9447
9448         * config/aarch64/aarch64-sve.md (sve_ld1rq): Replace with...
9449         (*sve_ld1rq<Vesize>): ... this new pattern.  Handle all element sizes,
9450         not just bytes.
9451         * config/aarch64/aarch64.c (aarch64_expand_sve_widened_duplicate):
9452         Remove BSWAP handing for big-endian targets and use the form of
9453         LD1RQ appropariate for the mode.
9454
9455 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
9456
9457         * config/aarch64/aarch64.c (aarch64_simd_valid_immediate): Handle
9458         all CONST_VECTOR_DUPLICATE_P vectors, not just those with a single
9459         duplicated element.
9460
9461 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
9462
9463         PR tearget/83845
9464         * config/aarch64/aarch64.c (aarch64_secondary_reload): Tighten
9465         check for operands that need to go through aarch64_sve_reload_be.
9466
9467 2018-02-01  Jakub Jelinek  <jakub@redhat.com>
9468
9469         PR tree-optimization/81661
9470         PR tree-optimization/84117
9471         * tree-eh.h (rewrite_to_non_trapping_overflow): Declare.
9472         * tree-eh.c: Include gimplify.h.
9473         (find_trapping_overflow, replace_trapping_overflow,
9474         rewrite_to_non_trapping_overflow): New functions.
9475         * tree-vect-loop.c: Include tree-eh.h.
9476         (vect_get_loop_niters): Use rewrite_to_non_trapping_overflow.
9477         * tree-data-ref.c: Include tree-eh.h.
9478         (get_segment_min_max): Use rewrite_to_non_trapping_overflow.
9479
9480 2018-01-31  Uros Bizjak  <ubizjak@gmail.com>
9481
9482         PR rtl-optimization/84123
9483         * combine.c (change_zero_ext): Check if hard register satisfies
9484         can_change_dest_mode before calling gen_lowpart_SUBREG.
9485
9486 2018-01-31  Vladimir Makarov  <vmakarov@redhat.com>
9487
9488         PR target/82444
9489         * ira.c (ira_init_register_move_cost): Remove assert.
9490
9491 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
9492
9493         PR rtl-optimization/84071
9494         * doc/tm.texi.in (WORD_REGISTER_OPERATIONS): Add explicit case.
9495         * doc/tm.texi: Regenerate.
9496
9497 2018-01-31  Richard Biener  <rguenther@suse.de>
9498
9499         PR tree-optimization/84132
9500         * tree-data-ref.c (analyze_miv_subscript): Properly
9501         check whether evolution_function_is_affine_multivariate_p
9502         before calling gcd_of_steps_may_divide_p.
9503
9504 2018-01-31  Julia Koval  <julia.koval@intel.com>
9505
9506         PR target/83618
9507         * config/i386/i386.c (ix86_expand_builtin): Handle IX86_BUILTIN_RDPID.
9508         * config/i386/i386.md (rdpid_rex64) New.
9509         (rdpid): Make 32bit only.
9510
9511 2018-01-29  Aldy Hernandez  <aldyh@redhat.com>
9512
9513         PR lto/84105
9514         * tree-pretty-print.c (dump_generic_node): Handle a TYPE_NAME with
9515         an IDENTIFIER_NODE for FUNCTION_TYPE's.
9516
9517 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
9518
9519         Revert
9520         2018-01-12  Eric Botcazou  <ebotcazou@adacore.com>
9521
9522         * config/sparc/sparc.md (vxworks_load_got): Set the GOT register.
9523
9524 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
9525
9526         PR rtl-optimization/84071
9527         * combine.c (record_dead_and_set_regs_1): Record the source unmodified
9528         for a paradoxical SUBREG on a WORD_REGISTER_OPERATIONS target.
9529
9530 2018-01-31  Claudiu Zissulescu  <claziss@synopsys.com>
9531
9532         * config/arc/arc.c (arc_handle_aux_attribute): New function.
9533         (arc_attribute_table): Add 'aux' attribute.
9534         (arc_in_small_data_p): Consider aux like variables.
9535         (arc_is_aux_reg_p): New function.
9536         (arc_asm_output_aligned_decl_local): Ignore 'aux' like variables.
9537         (arc_get_aux_arg): New function.
9538         (prepare_move_operands): Handle aux-register access.
9539         (arc_handle_aux_attribute): New function.
9540         * doc/extend.texi (ARC Variable attributes): Add subsection.
9541
9542 2018-01-31  Claudiu Zissulescu  <claziss@synopsys.com>
9543
9544         * config/arc/arc-protos.h (arc_is_uncached_mem_p): Function proto.
9545         * config/arc/arc.c (arc_handle_uncached_attribute): New function.
9546         (arc_attribute_table): Add 'uncached' attribute.
9547         (arc_print_operand): Print '.di' flag for uncached memory
9548         accesses.
9549         (arc_in_small_data_p): Do not consider for small data the uncached
9550         types.
9551         (arc_is_uncached_mem_p): New function.
9552         * config/arc/predicates.md (compact_store_memory_operand): Check
9553         for uncached memory accesses.
9554         (nonvol_nonimm_operand): Likewise.
9555         * gcc/doc/extend.texi (ARC Type Attribute): New subsection.
9556
9557 2018-01-31  Jakub Jelinek  <jakub@redhat.com>
9558
9559         PR c/84100
9560         * common.opt (falign-functions=, falign-jumps=, falign-labels=,
9561         falign-loops=): Add Optimization flag.
9562
9563 2018-01-30  Jeff Law  <law@redhat.com>
9564
9565         PR target/84064
9566         * i386.c (ix86_adjust_stack_and_probe_stack_clash): New argument
9567         INT_REGISTERS_SAVED.  Check it prior to calling
9568         get_scratch_register_on_entry.
9569         (ix86_adjust_stack_and_probe): Similarly.
9570         (ix86_emit_probe_stack_range): Similarly.
9571         (ix86_expand_prologue): Corresponding changes.
9572
9573 2018-01-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
9574
9575         PR target/40411
9576         * config/sol2.h (STARTFILE_ARCH_SPEC): Use -std=c*,
9577         -std=iso9899:199409 instead of -pedantic to select values-Xc.o.
9578
9579 2018-01-30  Vladimir Makarov  <vmakarov@redhat.com>
9580
9581         PR target/84112
9582         * lra-constraints.c (curr_insn_transform): Process AND in the
9583         address.
9584
9585 2018-01-30  Jakub Jelinek  <jakub@redhat.com>
9586
9587         PR rtl-optimization/83986
9588         * sched-deps.c (sched_analyze_insn): For frame related insns, add anti
9589         dependence against last_pending_memory_flush in addition to
9590         pending_jump_insns.
9591
9592 2018-01-30  Alexandre Oliva  <aoliva@redhat.com>
9593
9594         PR tree-optimization/81611
9595         * tree-ssa-dom.c (simple_iv_increment_p): Skip intervening
9596         copies.
9597
9598 2018-01-30  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
9599
9600         PR target/83758
9601         * config/rs6000/rs6000.c (rs6000_internal_arg_pointer): Only return
9602         a reg rtx.
9603
9604 2018-01-30  Richard Biener  <rguenther@suse.de>
9605             Jakub Jelinek  <jakub@redhat.com>
9606
9607         PR tree-optimization/84111
9608         * tree-ssa-loop-ivcanon.c (tree_unroll_loops_completely_1): Skip
9609         inner loops added during recursion, as they don't have up-to-date
9610         SSA form.
9611
9612 2018-01-30  Jan Hubicka  <hubicka@ucw.cz>
9613
9614         PR ipa/81360
9615         * ipa-inline.c (can_inline_edge_p): Break out late tests to...
9616         (can_inline_edge_by_limits_p): ... here.
9617         (can_early_inline_edge_p, check_callers,
9618         update_caller_keys, update_callee_keys, recursive_inlining,
9619         add_new_edges_to_heap, speculation_useful_p,
9620         inline_small_functions,
9621         inline_small_functions, flatten_function,
9622         inline_to_all_callers_1): Update.
9623
9624 2018-01-30  Jan Hubicka  <hubicka@ucw.cz>
9625
9626         * profile-count.c (profile_count::combine_with_ipa_count): Handle
9627         zeros correctly.
9628
9629 2018-01-30  Richard Biener  <rguenther@suse.de>
9630
9631         PR tree-optimization/83008
9632         * tree-vect-slp.c (vect_analyze_slp_cost_1): Properly cost
9633         invariant and constant vector uses in stmts when they need
9634         more than one stmt.
9635
9636 2018-01-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
9637
9638         PR bootstrap/84017
9639         * configure.ac (gcc_cv_as_shf_merge): Disable on Solaris 10/x86.
9640         * configure: Regenerate.
9641
9642 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
9643
9644         * config/aarch64/aarch64-sve.md (*vec_extract<mode><Vel>_0): New
9645         pattern.
9646         (*vec_extract<mode><Vel>_v128): Require a nonzero lane number.
9647         Use gen_rtx_REG rather than gen_lowpart.
9648
9649 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
9650
9651         * lra-constraints.c (match_reload): Use subreg_lowpart_offset
9652         rather than 0 when creating partial subregs.
9653
9654 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
9655
9656         * vec-perm-indices.c (vec_perm_indices::series_p): Give examples
9657         of usage.
9658
9659 2018-01-29  Michael Meissner  <meissner@linux.vnet.ibm.com>
9660
9661         PR target/81550
9662         * config/rs6000/rs6000.c (rs6000_setup_reg_addr_masks): If DFmode
9663         and SFmode can go in Altivec registers (-mcpu=power7 for DFmode,
9664         -mcpu=power8 for SFmode) don't set the PRE_INCDEC or PRE_MODIFY
9665         flags.  This restores the settings used before the 2017-07-24.
9666         Turning off pre increment/decrement/modify allows IVOPTS to
9667         optimize DF/SF loops where the index is an int.
9668
9669 2018-01-29  Richard Biener  <rguenther@suse.de>
9670             Kelvin Nilsen  <kelvin@gcc.gnu.org>
9671
9672         PR bootstrap/80867
9673         * tree-vect-stmts.c (vectorizable_call): Don't call
9674         targetm.vectorize_builtin_md_vectorized_function if callee is
9675         NULL.
9676
9677 2018-01-22  Carl Love  <cel@us.ibm.com>
9678
9679         * doc/extend.tex: Fix typo in second arg in
9680         __builtin_bcdadd_{lt|eq|gt|ov} and __builtin_bcdsub_{lt|eq|gt|ov}.
9681
9682 2018-01-29  Richard Biener  <rguenther@suse.de>
9683
9684         PR tree-optimization/84086
9685         * tree-ssanames.c: Include cfgloop.h and tree-scalar-evolution.h.
9686         (flush_ssaname_freelist): When SSA names were released reset
9687         the SCEV hash table.
9688
9689 2018-01-29  Richard Biener  <rguenther@suse.de>
9690
9691         PR tree-optimization/84057
9692         * tree-ssa-loop-ivcanon.c (unloop_loops): Deal with already
9693         removed paths when removing edges.
9694
9695 2018-01-27  H.J. Lu  <hongjiu.lu@intel.com>
9696
9697         * doc/invoke.texi: Replace -mfunction-return==@var{choice} with
9698         -mfunction-return=@var{choice}.
9699
9700 2018-01-27  Bernd Edlinger  <bernd.edlinger@hotmail.de>
9701
9702         PR diagnostic/84034
9703         * diagnostic-show-locus.c (get_line_width_without_trailing_whitespace):
9704         Handle CR like TAB.
9705         (layout::print_source_line): Likewise.
9706         (test_get_line_width_without_trailing_whitespace): Add test cases.
9707
9708 2018-01-27  Jakub Jelinek  <jakub@redhat.com>
9709
9710         PR middle-end/84040
9711         * sched-deps.c (sched_macro_fuse_insns): Return immediately for
9712         debug insns.
9713
9714 2018-01-26  Jim Wilson  <jimw@sifive.com>
9715
9716         * config/riscv/riscv.h (MAX_FIXED_MODE_SIZE): New.
9717
9718         * config/riscv/elf.h (LIB_SPEC): Don't include -lgloss when nosys.specs
9719         specified.
9720
9721 2018-01-26  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
9722
9723         * config/aarch64/aarch64.md: Add peepholes for CMP + SUB -> SUBS
9724         and CMP + SUB-immediate -> SUBS.
9725
9726 2018-01-26  Martin Sebor  <msebor@redhat.com>
9727
9728         PR tree-optimization/83896
9729         * tree-ssa-strlen.c (get_string_len): Rename...
9730         (get_string_cst_length): ...to this.  Return HOST_WIDE_INT.
9731         Avoid assuming length is constant.
9732         (handle_char_store): Use HOST_WIDE_INT for string length.
9733
9734 2018-01-26  Uros Bizjak  <ubizjak@gmail.com>
9735
9736         PR target/81763
9737         * config/i386/i386.md (*andndi3_doubleword): Add earlyclobber
9738         to (=&r,r,rm) alternative. Add (=r,0,rm) and (=r,r,0) alternatives.
9739
9740 2018-01-26  Richard Biener  <rguenther@suse.de>
9741
9742         PR rtl-optimization/84003
9743         * dse.c (record_store): Only record redundant stores when
9744         the earlier store aliases at least all accesses the later one does.
9745
9746 2018-01-26  Jakub Jelinek  <jakub@redhat.com>
9747
9748         PR rtl-optimization/83985
9749         * dce.c (deletable_insn_p): Return false for separate shrink wrapping
9750         REG_CFA_RESTORE insns.
9751         (delete_unmarked_insns): Don't ignore separate shrink wrapping
9752         REG_CFA_RESTORE insns here.
9753
9754         PR c/83989
9755         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Don't
9756         use SSA_NAME_VAR as base for SSA_NAMEs with non-NULL SSA_NAME_VAR.
9757
9758 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
9759
9760         * config/arc/arc-arch.h (arc_tune_attr): Add ARC_TUNE_CORE_3.
9761         * config/arc/arc.c (arc_sched_issue_rate): Use ARC_TUNE_... .
9762         (arc_init): Likewise.
9763         (arc_override_options): Likewise.
9764         (arc_file_start): Choose Tag_ARC_CPU_variation based on arc_tune
9765         value.
9766         (hwloop_fail): Use TARGET_DBNZ when we want to check for dbnz insn
9767         support.
9768         * config/arc/arc.h (TARGET_DBNZ): Define.
9769         * config/arc/arc.md (attr tune): Add core_3, use ARC_TUNE_... to
9770         properly set the tune attribute.
9771         (dbnz): Use TARGET_DBNZ guard.
9772         * config/arc/arc.opt (mtune): Add core3 option.
9773
9774 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
9775
9776         * config/arc/arc.c (arc_delegitimize_address_0): Refactored to
9777         recognize new pic like addresses.
9778         (arc_delegitimize_address): Clean up.
9779
9780 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
9781
9782         * config/arc/arc-arches.def: Option mrf16 valid for all
9783         architectures.
9784         * config/arc/arc-c.def (__ARC_RF16__): New predefined macro.
9785         * config/arc/arc-cpus.def (em_mini): New cpu with rf16 on.
9786         * config/arc/arc-options.def (FL_RF16): Add mrf16 option.
9787         * config/arc/arc-tables.opt: Regenerate.
9788         * config/arc/arc.c (arc_conditional_register_usage): Handle
9789         reduced register file case.
9790         (arc_file_start): Set must have build attributes.
9791         * config/arc/arc.h (MAX_ARC_PARM_REGS): Conditional define using
9792         mrf16 option value.
9793         * config/arc/arc.opt (mrf16): Add new option.
9794         * config/arc/elf.h (ATTRIBUTE_PCS): Define.
9795         * config/arc/genmultilib.awk: Handle new mrf16 option.
9796         * config/arc/linux.h (ATTRIBUTE_PCS): Define.
9797         * config/arc/t-multilib: Regenerate.
9798         * doc/invoke.texi (ARC Options): Document mrf16 option.
9799
9800 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
9801
9802         * config/arc/arc-protos.h: Add arc_is_secure_call_p proto.
9803         * config/arc/arc.c (arc_handle_secure_attribute): New function.
9804         (arc_attribute_table): Add 'secure_call' attribute.
9805         (arc_print_operand): Print secure call operand.
9806         (arc_function_ok_for_sibcall): Don't optimize tail calls when
9807         secure.
9808         (arc_is_secure_call_p): New function.  * config/arc/arc.md
9809         (call_i): Add support for sjli instruction.
9810         (call_value_i): Likewise.
9811         * config/arc/constraints.md (Csc): New constraint.
9812
9813 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
9814             John Eric Martin  <John.Martin@emmicro-us.com>
9815
9816         * config/arc/arc-protos.h: Add arc_is_jli_call_p proto.
9817         * config/arc/arc.c (_arc_jli_section): New struct.
9818         (arc_jli_section): New type.
9819         (rc_jli_sections): New static variable.
9820         (arc_handle_jli_attribute): New function.
9821         (arc_attribute_table): Add jli_always and jli_fixed attribute.
9822         (arc_file_end): New function.
9823         (TARGET_ASM_FILE_END): Define.
9824         (arc_print_operand): Reuse 'S' letter for JLI output instruction.
9825         (arc_add_jli_section): New function.
9826         (jli_call_scan): Likewise.
9827         (arc_reorg): Call jli_call_scan.
9828         (arc_output_addsi): Remove 'S' from printing asm operand.
9829         (arc_is_jli_call_p): New function.
9830         * config/arc/arc.md (movqi_insn): Remove 'S' from printing asm
9831         operand.
9832         (movhi_insn): Likewise.
9833         (movsi_insn): Likewise.
9834         (movsi_set_cc_insn): Likewise.
9835         (loadqi_update): Likewise.
9836         (load_zeroextendqisi_update): Likewise.
9837         (load_signextendqisi_update): Likewise.
9838         (loadhi_update): Likewise.
9839         (load_zeroextendhisi_update): Likewise.
9840         (load_signextendhisi_update): Likewise.
9841         (loadsi_update): Likewise.
9842         (loadsf_update): Likewise.
9843         (movsicc_insn): Likewise.
9844         (bset_insn): Likewise.
9845         (bxor_insn): Likewise.
9846         (bclr_insn): Likewise.
9847         (bmsk_insn): Likewise.
9848         (bicsi3_insn): Likewise.
9849         (cmpsi_cc_c_insn): Likewise.
9850         (movsi_ne): Likewise.
9851         (movsi_cond_exec): Likewise.
9852         (clrsbsi2): Likewise.
9853         (norm_f): Likewise.
9854         (normw): Likewise.
9855         (swap): Likewise.
9856         (divaw): Likewise.
9857         (flag): Likewise.
9858         (sr): Likewise.
9859         (kflag): Likewise.
9860         (ffs): Likewise.
9861         (ffs_f): Likewise.
9862         (fls): Likewise.
9863         (call_i): Remove 'S' asm letter, add jli instruction.
9864         (call_value_i): Likewise.
9865         * config/arc/arc.op (mjli-always): New option.
9866         * config/arc/constraints.md (Cji): New constraint.
9867         * config/arc/fpx.md (addsf3_fpx): Remove 'S' from printing asm
9868         operand.
9869         (subsf3_fpx): Likewise.
9870         (mulsf3_fpx): Likewise.
9871         * config/arc/simdext.md (vendrec_insn): Remove 'S' from printing
9872         asm operand.
9873         * doc/extend.texi (ARC): Document 'jli-always' and 'jli-fixed'
9874         function attrbutes.
9875         * doc/invoke.texi (ARC): Document mjli-always option.
9876
9877 2018-01-26  Sebastian Perta  <sebastian.perta@renesas.com>
9878
9879         * config/rl78/rl78.c (rl78_addsi3_internal): If operand 2 is const
9880         avoid addition with 0 and use incw and decw where possible.
9881
9882 2018-01-26  Richard Biener  <rguenther@suse.de>
9883
9884         PR tree-optimization/81082
9885         * fold-const.c (fold_plusminus_mult_expr): Do not perform the
9886         association if it requires casting to unsigned.
9887         * match.pd ((A * C) +- (B * C) -> (A+-B)): New patterns derived
9888         from fold_plusminus_mult_expr to catch important cases late when
9889         range info is available.
9890
9891 2018-01-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
9892
9893         * config/i386/sol2.h (USE_HIDDEN_LINKONCE): Remove.
9894         * configure.ac (hidden_linkonce): New test.
9895         * configure: Regenerate.
9896         * config.in: Regenerate.
9897
9898 2018-01-26  Julia Koval  <julia.koval@intel.com>
9899
9900         * config/i386/avx512bitalgintrin.h (_mm512_bitshuffle_epi64_mask,
9901         _mm512_mask_bitshuffle_epi64_mask, _mm256_bitshuffle_epi64_mask,
9902         _mm256_mask_bitshuffle_epi64_mask, _mm_bitshuffle_epi64_mask,
9903         _mm_mask_bitshuffle_epi64_mask): Fix type.
9904         * config/i386/i386-builtin-types.def (UHI_FTYPE_V2DI_V2DI_UHI,
9905         USI_FTYPE_V4DI_V4DI_USI): Remove.
9906         * config/i386/i386-builtin.def (__builtin_ia32_vpshufbitqmb512_mask,
9907         __builtin_ia32_vpshufbitqmb256_mask,
9908         __builtin_ia32_vpshufbitqmb128_mask): Fix types.
9909         * config/i386/i386.c (ix86_expand_args_builtin): Remove old types.
9910         * config/i386/sse.md (VI1_AVX512VLBW): Change types.
9911
9912 2018-01-26  Alan Modra  <amodra@gmail.com>
9913
9914         PR target/84033
9915         * config/rs6000/rs6000-p8swap.c (rtx_is_swappable_p): Exclude
9916         UNSPEC_VBPERMQ.  Sort other unspecs.
9917
9918 2018-01-25  David Edelsohn  <dje.gcc@gmail.com>
9919
9920         * doc/invoke.texi (PowerPC Options): Document 'native' cpu type.
9921
9922 2018-01-25  Jan Hubicka  <hubicka@ucw.cz>
9923
9924         PR middle-end/83055
9925         * predict.c (drop_profile): Do not push/pop cfun; update also
9926         node->count.
9927         (handle_missing_profiles): Fix logic looking for zero profiles.
9928
9929 2018-01-25  Jakub Jelinek  <jakub@redhat.com>
9930
9931         PR middle-end/83977
9932         * ipa-fnsummary.c (compute_fn_summary): Clear can_change_signature
9933         on functions with #pragma omp declare simd or functions with simd
9934         attribute.
9935         * omp-simd-clone.c (expand_simd_clones): Revert 2018-01-24 change.
9936         * config/i386/i386.c (ix86_simd_clone_compute_vecsize_and_simdlen):
9937         Remove trailing \n from warning_at calls.
9938
9939 2018-01-25  Tom de Vries  <tom@codesourcery.com>
9940
9941         PR target/84028
9942         * config/nvptx/nvptx.c (nvptx_single): Add exit insn after noreturn call
9943         for neutered workers.
9944
9945 2018-01-24  Joseph Myers  <joseph@codesourcery.com>
9946
9947         PR target/68467
9948         * config/m68k/m68k.c (m68k_promote_function_mode): New function.
9949         (TARGET_PROMOTE_FUNCTION_MODE): New macro.
9950
9951 2018-01-24  Jeff Law  <law@redhat.com>
9952
9953         PR target/83994
9954         * i386.c (get_probe_interval): Move to earlier point.
9955         (ix86_compute_frame_layout): If -fstack-clash-protection and
9956         the frame is larger than the probe interval, then use pushes
9957         to save registers rather than reg->mem moves.
9958         (ix86_expand_prologue): Remove conditional for int_registers_saved
9959         assertion.
9960
9961 2018-01-24  Vladimir Makarov  <vmakarov@redhat.com>
9962
9963         PR target/84014
9964         * ira-build.c (setup_min_max_allocno_live_range_point): Set up
9965         min/max for never referenced object.
9966
9967 2018-01-24  Jakub Jelinek  <jakub@redhat.com>
9968
9969         PR middle-end/83977
9970         * tree.c (free_lang_data_in_decl): Don't clear DECL_ABSTRACT_ORIGIN
9971         here.
9972         * omp-low.c (create_omp_child_function): Remove "omp declare simd"
9973         attributes from DECL_ATTRIBUTES (decl) without affecting
9974         DECL_ATTRIBUTES (current_function_decl).
9975         * omp-simd-clone.c (expand_simd_clones): Ignore DECL_ARTIFICIAL
9976         functions with non-NULL DECL_ABSTRACT_ORIGIN.
9977
9978 2018-01-24  Richard Sandiford  <richard.sandiford@linaro.org>
9979
9980         PR tree-optimization/83979
9981         * fold-const.c (fold_comparison): Use constant_boolean_node
9982         instead of boolean_{true,false}_node.
9983
9984 2018-01-24  Jan Hubicka  <hubicka@ucw.cz>
9985
9986         * ipa-profile.c (ipa_propagate_frequency_1): Fix logic skipping calls
9987         with zero counts.
9988
9989 2018-01-24  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
9990
9991         * config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
9992         Simplify the clause that sets the length attribute.
9993         (*call_value_indirect_nonlocal_sysv<mode>): Likewise.
9994         (*sibcall_nonlocal_sysv<mode>): Clean up code block; simplify the
9995         clause that sets the length attribute.
9996         (*sibcall_value_nonlocal_sysv<mode>): Likewise.
9997
9998 2018-01-24  Tom de Vries  <tom@codesourcery.com>
9999
10000         PR target/83589
10001         * config/nvptx/nvptx.c (WORKAROUND_PTXJIT_BUG_2): Define to 1.
10002         (nvptx_pc_set, nvptx_condjump_label): New function. Copy from jump.c.
10003         Add strict parameter.
10004         (prevent_branch_around_nothing): Insert dummy insn between branch to
10005         label and label with no ptx insn inbetween.
10006         * config/nvptx/nvptx.md (define_insn "fake_nop"): New insn.
10007
10008 2018-01-24  Tom de Vries  <tom@codesourcery.com>
10009
10010         PR target/81352
10011         * config/nvptx/nvptx.c (nvptx_single): Add exit insn after noreturn call
10012         for neutered threads in warp.
10013         * config/nvptx/nvptx.md (define_insn "exit"): New insn.
10014
10015 2018-01-24  Richard Biener  <rguenther@suse.de>
10016
10017         PR tree-optimization/83176
10018         * tree-chrec.c (chrec_fold_plus_1): Handle (signed T){(T) .. }
10019         operands.
10020
10021 2018-01-24  Richard Biener  <rguenther@suse.de>
10022
10023         PR tree-optimization/82819
10024         * graphite-isl-ast-to-gimple.c (binary_op_to_tree): Avoid
10025         code generating pluses that are no-ops in the target precision.
10026
10027 2018-01-24  Richard Biener  <rguenther@suse.de>
10028
10029         PR middle-end/84000
10030         * tree-cfg.c (replace_loop_annotate): Handle annot_expr_parallel_kind.
10031
10032 2018-01-23  Jan Hubicka  <hubicka@ucw.cz>
10033
10034         * cfgcleanup.c (try_crossjump_to_edge): Use combine_with_count
10035         to merge probabilities.
10036         * predict.c (probably_never_executed): Also mark as cold functions
10037         with global 0 profile and guessed local profile.
10038         * profile-count.c (profile_probability::combine_with_count): New
10039         member function.
10040         * profile-count.h (profile_probability::operator*,
10041         profile_probability::operator*=, profile_probability::operator/,
10042         profile_probability::operator/=): Reduce precision to adjusted
10043         and set value to guessed on contradictory divisions.
10044         (profile_probability::combine_with_freq): Remove.
10045         (profile_probability::combine_wiht_count): Declare.
10046         (profile_count::force_nonzero):: Set to adjusted.
10047         (profile_count::probability_in):: Set quality to adjusted.
10048         * tree-ssa-tail-merge.c (replace_block_by): Use
10049         combine_with_count.
10050
10051 2018-01-23  Andrew Waterman  <andrew@sifive.com>
10052             Jim Wilson  <jimw@sifive.com>
10053
10054         * config/riscv/riscv.c (riscv_stack_boundary): New.
10055         (riscv_option_override): Set riscv_stack_boundary.  Handle
10056         riscv_preferred_stack_boundary_arg.
10057         * config/riscv/riscv.h (MIN_STACK_BOUNDARY, ABI_STACK_BOUNDARY): New.
10058         (BIGGEST_ALIGNMENT): Set to STACK_BOUNDARY.
10059         (STACK_BOUNDARY): Set to riscv_stack_boundary.
10060         (RISCV_STACK_ALIGN): Use STACK_BOUNDARY.
10061         * config/riscv/riscv.opt (mpreferred-stack-boundary): New.
10062         * doc/invoke.tex (RISC-V Options): Add -mpreferred-stack-boundary.
10063
10064 2018-01-23  H.J. Lu  <hongjiu.lu@intel.com>
10065
10066         PR target/83905
10067         * config/i386/i386.c (ix86_expand_prologue): Use cost reference
10068         of struct ix86_frame.
10069         (ix86_expand_epilogue): Likewise.  Add a local variable for
10070         the reg_save_offset field in struct ix86_frame.
10071
10072 2018-01-23  Bin Cheng  <bin.cheng@arm.com>
10073
10074         PR tree-optimization/82604
10075         * tree-loop-distribution.c (enum partition_kind): New enum item
10076         PKIND_PARTIAL_MEMSET.
10077         (partition_builtin_p): Support above new enum item.
10078         (generate_code_for_partition): Ditto.
10079         (compute_access_range): Differentiate cases that equality can be
10080         proven at all loops, the innermost loops or no loops.
10081         (classify_builtin_st, classify_builtin_ldst): Adjust call to above
10082         function.  Set PKIND_PARTIAL_MEMSET for partition appropriately.
10083         (finalize_partitions, distribute_loop): Don't fuse partition of
10084         PKIND_PARTIAL_MEMSET kind when distributing 3-level loop nest.
10085         (prepare_perfect_loop_nest): Distribute 3-level loop nest only if
10086         parloop is enabled.
10087
10088 2018-01-23  Martin Liska  <mliska@suse.cz>
10089
10090         * predict.def (PRED_INDIR_CALL): Set probability to PROB_EVEN in
10091         order to ignore the predictor.
10092         (PRED_POLYMORPHIC_CALL): Likewise.
10093         (PRED_RECURSIVE_CALL): Likewise.
10094
10095 2018-01-23  Martin Liska  <mliska@suse.cz>
10096
10097         * tree-profile.c (tree_profiling): Print function header to
10098         aware reader which function we are working on.
10099         * value-prof.c (gimple_find_values_to_profile): Do not print
10100         not interesting value histograms.
10101
10102 2018-01-23  Martin Liska  <mliska@suse.cz>
10103
10104         * profile-count.h (enum profile_quality): Add
10105         profile_uninitialized as the first value. Do not number values
10106         as they are zero based.
10107         (profile_count::verify): Update sanity check.
10108         (profile_probability::verify): Likewise.
10109
10110 2018-01-23  Nathan Sidwell  <nathan@acm.org>
10111
10112         * doc/invoke.texi (ffor-scope): Deprecate.
10113
10114 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
10115
10116         PR tree-optimization/83510
10117         * domwalk.c (set_all_edges_as_executable): New function.
10118         (dom_walker::dom_walker): Convert bool param
10119         "skip_unreachable_blocks" to enum reachability.  Move setup of
10120         edge flags to set_all_edges_as_executable and only do it when
10121         reachability is REACHABLE_BLOCKS.
10122         * domwalk.h (enum dom_walker::reachability): New enum.
10123         (dom_walker::dom_walker): Convert bool param
10124         "skip_unreachable_blocks" to enum reachability.
10125         (set_all_edges_as_executable): New decl.
10126         * graphite-scop-detection.c  (gather_bbs::gather_bbs): Convert
10127         from false for "skip_unreachable_blocks" to ALL_BLOCKS for
10128         "reachability".
10129         * tree-ssa-dom.c (dom_opt_dom_walker::dom_opt_dom_walker): Likewise,
10130         but converting true to REACHABLE_BLOCKS.
10131         * tree-ssa-sccvn.c (sccvn_dom_walker::sccvn_dom_walker): Likewise.
10132         * tree-vrp.c
10133         (check_array_bounds_dom_walker::check_array_bounds_dom_walker):
10134         Likewise, but converting it to REACHABLE_BLOCKS_PRESERVING_FLAGS.
10135         (vrp_dom_walker::vrp_dom_walker): Likewise, but converting it to
10136         REACHABLE_BLOCKS.
10137         (vrp_prop::vrp_finalize): Call set_all_edges_as_executable
10138         if check_all_array_refs will be called.
10139
10140 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
10141
10142         * tree.c (selftest::test_location_wrappers): Add more test
10143         coverage.
10144
10145 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
10146
10147         * sbitmap.c (selftest::test_set_range): Fix memory leaks.
10148         (selftest::test_bit_in_range): Likewise.
10149
10150 2018-01-23  Richard Sandiford  <richard.sandiford@linaro.org>
10151
10152         PR testsuite/83888
10153         * doc/sourcebuild.texi (vect_float): Say that the selector
10154         only describes the situation when -funsafe-math-optimizations is on.
10155         (vect_float_strict): Document.
10156
10157 2018-01-23  Richard Sandiford  <richard.sandiford@linaro.org>
10158
10159         PR tree-optimization/83965
10160         * tree-vect-patterns.c (vect_reassociating_reduction_p): New function.
10161         (vect_recog_dot_prod_pattern, vect_recog_sad_pattern): Use it
10162         instead of checking only for a reduction.
10163         (vect_recog_widen_sum_pattern): Likewise.
10164
10165 2018-01-23  Jan Hubicka  <hubicka@ucw.cz>
10166
10167         * predict.c (probably_never_executed): Only use precise profile info.
10168         (compute_function_frequency): Skip after inlining hack since we now
10169         have quality checking.
10170
10171 2018-01-23  Jan Hubicka  <hubicka@ucw.cz>
10172
10173         * profile-count.h (profile_probability::very_unlikely,
10174         profile_probability::unlikely, profile_probability::even): Set
10175         precision to guessed.
10176
10177 2018-01-23  Richard Biener  <rguenther@suse.de>
10178
10179         PR tree-optimization/83963
10180         * graphite-scop-detection.c (scop_detection::harmful_loop_in_region):
10181         Properly terminate dominator walk when crossing the exit edge not
10182         when visiting its source block.
10183
10184 2018-01-23  Jakub Jelinek  <jakub@redhat.com>
10185
10186         PR c++/83918
10187         * tree.c (maybe_wrap_with_location): Use NON_LVALUE_EXPR rather than
10188         VIEW_CONVERT_EXPR to wrap CONST_DECLs.
10189
10190 2018-01-22  Jakub Jelinek  <jakub@redhat.com>
10191
10192         PR tree-optimization/83957
10193         * omp-expand.c (expand_omp_for_generic): Ignore virtual PHIs.  Remove
10194         semicolon after for body surrounded by braces.
10195
10196         PR tree-optimization/83081
10197         * profile-count.h (profile_probability::split): New method.
10198         * dojump.c (do_jump_1) <case TRUTH_ANDIF_EXPR, case TRUTH_ORIF_EXPR>:
10199         Use profile_probability::split.
10200         (do_compare_rtx_and_jump): Fix adjustment of probabilities
10201         when splitting a single conditional jump into 2.
10202
10203 2018-01-22  David Malcolm  <dmalcolm@redhat.com>
10204
10205         PR tree-optimization/69452
10206         * tree-ssa-loop-im.c (class move_computations_dom_walker): Remove
10207         decl.
10208
10209 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
10210
10211         * config/rl78/rl78-expand.md (bswaphi2): New define_expand.
10212         * config/rl78/rl78-virt.md (*bswaphi2_virt): New define_insn.
10213         * config/rl78/rl78-real.md (*bswaphi2_real): New define_insn.
10214
10215 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
10216
10217         * config/rl78/rl78-protos.h (rl78_split_movdi): New function
10218         declaration.
10219         * config/rl78/rl78.md (movdi): New define_expand.
10220         * config/rl78/rl78.c (rl78_split_movdi): New function.
10221
10222 2018-01-22  Michael Meissner  <meissner@linux.vnet.ibm.com>
10223
10224         PR target/83862
10225         * config/rs6000/rs6000-protos.h (rs6000_split_signbit): Delete,
10226         no longer used.
10227         * config/rs6000/rs6000.c (rs6000_split_signbit): Likewise.
10228         * config/rs6000/rs6000.md (signbit<mode>2): Change code for IEEE
10229         128-bit to produce an UNSPEC move to get the double word with the
10230         signbit and then a shift directly to do signbit.
10231         (signbit<mode>2_dm): Replace old IEEE 128-bit signbit
10232         implementation with a new version that just does either a direct
10233         move or a regular move.  Move memory interface to separate insns.
10234         Move insns so they are next to the expander.
10235         (signbit<mode>2_dm_mem_be): New combiner insns to combine load
10236         with signbit move.  Split big and little endian case.
10237         (signbit<mode>2_dm_mem_le): Likewise.
10238         (signbit<mode>2_dm_<su>ext): Delete, no longer used.
10239         (signbit<mode>2_dm2): Likewise.
10240
10241 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
10242
10243         * config/rl78/rl78.md (anddi3): New define_expand.
10244
10245 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
10246
10247         * config/rl78/rl78.md (umindi3): New define_expand.
10248
10249 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
10250
10251         * config/rl78/rl78.md (smindi3): New define_expand.
10252
10253 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
10254
10255         * config/rl78/rl78.md (smaxdi3): New define_expand.
10256
10257 2018-01-22  Carl Love  <cel@us.ibm.com>
10258
10259         * config/rs6000/rs6000-builtin.def (ST_ELEMREV_V1TI, LD_ELEMREV_V1TI,
10260         LVX_V1TI): Add macro expansion.
10261         * config/rs6000/rs6000-c.c (altivec_builtin_types): Add argument
10262         definitions for VSX_BUILTIN_VEC_XST_BE, VSX_BUILTIN_VEC_ST,
10263         VSX_BUILTIN_VEC_XL, LD_ELEMREV_V1TI builtins.
10264         * config/rs6000/rs6000-p8swap.c (insn_is_swappable_p);
10265         Change check to determine if the instruction is a byte reversing
10266         entry.  Fix typo in comment.
10267         * config/rs6000/rs6000.c (altivec_expand_builtin): Add case entry
10268         for VSX_BUILTIN_ST_ELEMREV_V1TI and VSX_BUILTIN_LD_ELEMREV_V1TI.
10269         Add def_builtin calls for new builtins.
10270         * config/rs6000/vsx.md (vsx_st_elemrev_v1ti, vsx_ld_elemrev_v1ti):
10271         Add define_insn expansion.
10272
10273 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
10274
10275         * config/rl78/rl78.md (umaxdi3): New define_expand.
10276
10277 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
10278
10279         * config/rl78/rl78.c (rl78_note_reg_set): Fixed dead reg check
10280         for non-QImode registers.
10281
10282 2018-01-22  Richard Biener  <rguenther@suse.de>
10283
10284         PR tree-optimization/83963
10285         * graphite-scop-detection.c (scop_detection::get_sese): Delay
10286         including the loop exit block.
10287         (scop_detection::merge_sese): Likewise.
10288         (scop_detection::add_scop): Do it here instead.
10289
10290 2018-01-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
10291
10292         * doc/sourcebuild.texi (arm_softfloat): Document.
10293
10294 2018-01-21  John David Anglin  <danglin@gcc.gnu.org>
10295
10296         PR gcc/77734
10297         * config/pa/pa.c (pa_function_ok_for_sibcall): Use
10298         targetm.binds_local_p instead of TREE_PUBLIC to check local binding.
10299         Move TARGET_PORTABLE_RUNTIME check after TARGET_64BIT check.
10300
10301 2018-01-21  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
10302             David Edelsohn  <dje.gcc@gmail.com>
10303
10304         PR target/83946
10305         * config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
10306         Change "crset eq" to "crset 2".
10307         (*call_value_indirect_nonlocal_sysv<mode>): Likewise.
10308         (*call_indirect_aix<mode>_nospec): Likewise.
10309         (*call_value_indirect_aix<mode>_nospec): Likewise.
10310         (*call_indirect_elfv2<mode>_nospec): Likewise.
10311         (*call_value_indirect_elfv2<mode>_nospec): Likewise.
10312         (*sibcall_nonlocal_sysv<mode>): Change "crset eq" to "crset 2";
10313         change assembly output from . to $.
10314         (*sibcall_value_nonlocal_sysv<mode>): Likewise.
10315         (indirect_jump<mode>_nospec): Change assembly output from . to $.
10316         (*tablejump<mode>_internal1_nospec): Likewise.
10317
10318 2018-01-21  Oleg Endo  <olegendo@gcc.gnu.org>
10319
10320         PR target/80870
10321         * config/sh/sh_optimize_sett_clrt.cc:
10322         Use INCLUDE_ALGORITHM and INCLUDE_VECTOR instead of direct includes.
10323
10324 2018-01-20  Richard Sandiford  <richard.sandiford@linaro.org>
10325
10326         PR tree-optimization/83940
10327         * tree-vect-stmts.c (vect_truncate_gather_scatter_offset): Set
10328         offset_dt to vect_constant_def rather than vect_unknown_def_type.
10329         (vect_check_load_store_mask): Add a mask_dt_out parameter and
10330         use it to pass back the definition type.
10331         (vect_check_store_rhs): Likewise rhs_dt_out.
10332         (vect_build_gather_load_calls): Add a mask_dt argument and use
10333         it instead of a call to vect_is_simple_use.
10334         (vectorizable_store): Update calls to vect_check_load_store_mask
10335         and vect_check_store_rhs.  Use the dt returned by the latter instead
10336         of scatter_src_dt.  Use the cached mask_dt and gs_info.offset_dt
10337         instead of calls to vect_is_simple_use.  Pass the scalar rather
10338         than the vector operand to vect_is_simple_use when handling
10339         second and subsequent copies of an rhs value.
10340         (vectorizable_load): Update calls to vect_check_load_store_mask
10341         and vect_build_gather_load_calls.  Use the cached mask_dt and
10342         gs_info.offset_dt instead of calls to vect_is_simple_use.
10343
10344 2018-01-20  Jakub Jelinek  <jakub@redhat.com>
10345
10346         PR middle-end/83945
10347         * tree-emutls.c: Include gimplify.h.
10348         (lower_emutls_2): New function.
10349         (lower_emutls_1): If ADDR_EXPR is a gimple invariant and walk_tree
10350         with lower_emutls_2 callback finds some TLS decl in it, unshare_expr
10351         it before further processing.
10352
10353         PR target/83930
10354         * simplify-rtx.c (simplify_binary_operation_1) <case UMOD>: Use
10355         UINTVAL (trueop1) instead of INTVAL (op1).
10356
10357 2018-01-19  Jakub Jelinek  <jakub@redhat.com>
10358
10359         PR debug/81570
10360         PR debug/83728
10361         * dwarf2cfi.c (DEFAULT_INCOMING_FRAME_SP_OFFSET): Define to
10362         INCOMING_FRAME_SP_OFFSET if not defined.
10363         (scan_trace): Add ENTRY argument.  If true and
10364         DEFAULT_INCOMING_FRAME_SP_OFFSET != INCOMING_FRAME_SP_OFFSET,
10365         emit a note to adjust the CFA offset.
10366         (create_cfi_notes): Adjust scan_trace callers.
10367         (create_cie_data): Use DEFAULT_INCOMING_FRAME_SP_OFFSET rather than
10368         INCOMING_FRAME_SP_OFFSET in the CIE.
10369         * config/i386/i386.h (DEFAULT_INCOMING_FRAME_SP_OFFSET): Define.
10370         * config/stormy16/stormy16.h (DEFAULT_INCOMING_FRAME_SP_OFFSET):
10371         Likewise.
10372         * doc/tm.texi.in (DEFAULT_INCOMING_FRAME_SP_OFFSET): Document.
10373         * doc/tm.texi: Regenerated.
10374
10375 2018-01-19  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
10376
10377         PR rtl-optimization/83147
10378         * lra-constraints.c (remove_inheritance_pseudos): Use
10379         lra_substitute_pseudo_within_insn.
10380
10381 2018-01-19  Tom de Vries  <tom@codesourcery.com>
10382             Cesar Philippidis  <cesar@codesourcery.com>
10383
10384         PR target/83920
10385         * config/nvptx/nvptx.c (nvptx_single): Fix jit workaround.
10386
10387 2018-01-19  Cesar Philippidis  <cesar@codesourcery.com>
10388
10389         PR target/83790
10390         * config/nvptx/nvptx.c (output_init_frag): Don't use generic address
10391         spaces for function labels.
10392
10393 2018-01-19  Martin Liska  <mliska@suse.cz>
10394
10395         * predict.def (PRED_LOOP_EXIT): Change from 85 to 89.
10396         (PRED_LOOP_EXIT_WITH_RECURSION): Change from 72 to 78.
10397         (PRED_LOOP_EXTRA_EXIT): Change from 83 to 67.
10398         (PRED_OPCODE_POSITIVE): Change from 64 to 59.
10399         (PRED_TREE_OPCODE_POSITIVE): Change from 64 to 59.
10400         (PRED_CONST_RETURN): Change from 69 to 65.
10401         (PRED_NULL_RETURN): Change from 91 to 71.
10402         (PRED_LOOP_IV_COMPARE_GUESS): Change from 98 to 64.
10403         (PRED_LOOP_GUARD): Change from 66 to 73.
10404
10405 2018-01-19  Martin Liska  <mliska@suse.cz>
10406
10407         * predict.c (predict_insn_def): Add new assert.
10408         (struct branch_predictor): Change type to signed integer.
10409         (test_prediction_value_range): Amend test to cover
10410         PROB_UNINITIALIZED.
10411         * predict.def (PRED_LOOP_ITERATIONS): Use the new constant.
10412         (PRED_LOOP_ITERATIONS_GUESSED): Likewise.
10413         (PRED_LOOP_ITERATIONS_MAX): Likewise.
10414         (PRED_LOOP_IV_COMPARE): Likewise.
10415         * predict.h (PROB_UNINITIALIZED): Define new constant.
10416
10417 2018-01-19  Martin Liska  <mliska@suse.cz>
10418
10419         * predict.c (dump_prediction): Add new format for
10420         analyze_brprob.py script which is enabled with -details
10421         suboption.
10422         * profile-count.h (precise_p): New function.
10423
10424 2018-01-19  Richard Sandiford  <richard.sandiford@linaro.org>
10425
10426         PR tree-optimization/83922
10427         * tree-vect-loop.c (vect_verify_full_masking): Return false if
10428         there are no statements that need masking.
10429         (vect_active_double_reduction_p): New function.
10430         (vect_analyze_loop_operations): Use it when handling phis that
10431         are not in the loop header.
10432
10433 2018-01-19  Richard Sandiford  <richard.sandiford@linaro.org>
10434
10435         PR tree-optimization/83914
10436         * tree-vect-loop.c (vectorizable_induction): Don't convert
10437         init_expr or apply the peeling adjustment for inductions
10438         that are nested within the vectorized loop.
10439
10440 2018-01-19  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
10441
10442         * config/arm/thumb2.md (*thumb2_negsi2_short): Use RSB mnemonic
10443         instead of NEG.
10444
10445 2018-01-18  Jakub Jelinek  <jakub@redhat.com>
10446
10447         PR sanitizer/81715
10448         PR testsuite/83882
10449         * function.h (gimplify_parameters): Add gimple_seq * argument.
10450         * function.c: Include gimple.h and options.h.
10451         (gimplify_parameters): Add cleanup argument, add CLOBBER stmts
10452         for the added local temporaries if needed.
10453         * gimplify.c (gimplify_body): Adjust gimplify_parameters caller,
10454         if there are any parameter cleanups, wrap whole body into a
10455         try/finally with the cleanups.
10456
10457 2018-01-18  Wilco Dijkstra  <wdijkstr@arm.com>
10458
10459         PR target/82964
10460         * config/aarch64/aarch64.c (aarch64_legitimate_constant_p):
10461         Use GET_MODE_CLASS for scalar floating point.
10462
10463 2018-01-18  Jan Hubicka  <hubicka@ucw.cz>
10464
10465         PR ipa/82256
10466         patch by PaX Team
10467         * cgraphclones.c (cgraph_node::create_version_clone_with_body):
10468         Fix call of call_cgraph_insertion_hooks.
10469
10470 2018-01-18  Martin Sebor  <msebor@redhat.com>
10471
10472         * doc/invoke.texi (-Wclass-memaccess): Tweak text.
10473
10474 2018-01-18  Jan Hubicka  <hubicka@ucw.cz>
10475
10476         PR ipa/83619
10477         * cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Update edge
10478         frequencies.
10479
10480 2018-01-18  Boris Kolpackov  <boris@codesynthesis.com>
10481
10482         PR other/70268
10483         * common.opt: (-ffile-prefix-map): New option.
10484         * opts.c (common_handle_option): Defer it.
10485         * opts-global.c (handle_common_deferred_options): Handle it.
10486         * debug.h (remap_debug_filename, add_debug_prefix_map): Move to...
10487         * file-prefix-map.h: New file.
10488         (remap_debug_filename, add_debug_prefix_map): ...here.
10489         (add_macro_prefix_map, add_file_prefix_map, remap_macro_filename): New.
10490         * final.c (debug_prefix_map, add_debug_prefix_map
10491         remap_debug_filename): Move to...
10492         * file-prefix-map.c: New file.
10493         (file_prefix_map, add_prefix_map, remap_filename) ...here and rename,
10494         generalize, get rid of alloca(), use strrchr() instead of strchr().
10495         (add_macro_prefix_map, add_debug_prefix_map, add_file_prefix_map):
10496         Implement in terms of add_prefix_map().
10497         (remap_macro_filename, remap_debug_filename): Implement in term of
10498         remap_filename().
10499         * Makefile.in (OBJS, PLUGIN_HEADERS): Add new files.
10500         * builtins.c (fold_builtin_FILE): Call remap_macro_filename().
10501         * dbxout.c: Include file-prefix-map.h.
10502         * varasm.c: Likewise.
10503         * vmsdbgout.c: Likewise.
10504         * xcoffout.c: Likewise.
10505         * dwarf2out.c: Likewise plus omit new options from DW_AT_producer.
10506         * doc/cppopts.texi (-fmacro-prefix-map): Document.
10507         * doc/invoke.texi (-ffile-prefix-map): Document.
10508         (-fdebug-prefix-map): Update description.
10509
10510 2018-01-18  Martin Liska  <mliska@suse.cz>
10511
10512         * config/i386/i386.c (indirect_thunk_name): Document that also
10513         lfence is emitted.
10514         (output_indirect_thunk): Document why both instructions
10515         (pause and lfence) are generated.
10516
10517 2018-01-18  Richard Biener  <rguenther@suse.de>
10518
10519         PR tree-optimization/83887
10520         * graphite-scop-detection.c
10521         (scop_detection::get_nearest_dom_with_single_entry): Remove.
10522         (scop_detection::get_nearest_pdom_with_single_exit): Likewise.
10523         (scop_detection::merge_sese): Re-implement with a flood-fill
10524         algorithm that properly finds a SESE region if it exists.
10525
10526 2018-01-18  Jakub Jelinek  <jakub@redhat.com>
10527
10528         PR c/61240
10529         * match.pd ((P + A) - P, P - (P + A), (P + A) - (P + B)): For
10530         pointer_diff optimizations use view_convert instead of convert.
10531
10532 2018-01-17  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
10533
10534         * config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
10535         Generate different code for -mno-speculate-indirect-jumps.
10536         (*call_value_indirect_nonlocal_sysv<mode>): Likewise.
10537         (*call_indirect_aix<mode>): Disable for
10538         -mno-speculate-indirect-jumps.
10539         (*call_indirect_aix<mode>_nospec): New define_insn.
10540         (*call_value_indirect_aix<mode>): Disable for
10541         -mno-speculate-indirect-jumps.
10542         (*call_value_indirect_aix<mode>_nospec): New define_insn.
10543         (*sibcall_nonlocal_sysv<mode>): Generate different code for
10544         -mno-speculate-indirect-jumps.
10545         (*sibcall_value_nonlocal_sysv<mode>): Likewise.
10546
10547 2018-01-17  Michael Meissner  <meissner@linux.vnet.ibm.com>
10548
10549         * config/rs6000/rs6000.c (rs6000_emit_move): If we load or store a
10550         long double type, set the flags for noting the default long double
10551         type, even if we don't pass or return a long double type.
10552
10553 2018-01-17  Jan Hubicka  <hubicka@ucw.cz>
10554
10555         PR ipa/83051
10556         * ipa-inline.c (flatten_function): Do not overwrite final inlining
10557         failure.
10558
10559 2018-01-17  Will Schmidt  <will_schmidt@vnet.ibm.com>
10560
10561         * config/rs6000/rs6000.c (rs6000_gimple_builtin): Add gimple folding
10562         support for merge[hl].
10563         (fold_mergehl_helper): New helper function.
10564         (tree-vector-builder.h): New #include for tree_vector_builder usage.
10565         * config/rs6000/altivec.md (altivec_vmrghw_direct): Add xxmrghw insn.
10566         (altivec_vmrglw_direct): Add xxmrglw insn.
10567
10568 2018-01-17  Andrew Waterman  <andrew@sifive.com>
10569
10570         * config/riscv/riscv.c (riscv_conditional_register_usage): If
10571         UNITS_PER_FP_ARG is 0, set call_used_regs to 1 for all FP regs.
10572
10573 2018-01-17  David Malcolm  <dmalcolm@redhat.com>
10574
10575         PR lto/83121
10576         * ipa-devirt.c (add_type_duplicate): When comparing memory layout,
10577         call the lto_location_cache before reading the
10578         DECL_SOURCE_LOCATION of the types.
10579
10580 2018-01-17  Wilco Dijkstra  <wdijkstr@arm.com>
10581             Richard Sandiford  <richard.sandiford@linaro.org>
10582
10583         * config/aarch64/aarch64.md (movti_aarch64): Use Uti constraint.
10584         * config/aarch64/aarch64.c (aarch64_mov128_immediate): New function.
10585         (aarch64_legitimate_constant_p): Just support CONST_DOUBLE
10586         SF/DF/TF mode to avoid creating illegal CONST_WIDE_INT immediates.
10587         * config/aarch64/aarch64-protos.h (aarch64_mov128_immediate):
10588         Add declaration.
10589         * config/aarch64/constraints.md (aarch64_movti_operand):
10590         Limit immediates.
10591         * config/aarch64/predicates.md (Uti): Add new constraint.
10592
10593 2018-01-17 Carl Love  <cel@us.ibm.com>
10594
10595         * config/rs6000/vsx.md (define_expand xl_len_r,
10596         define_expand stxvl, define_expand *stxvl): Add match_dup argument.
10597         (define_insn): Add, match_dup 1 argument to define_insn stxvll and
10598         lxvll.
10599         (define_expand, define_insn): Move the shift left from  the
10600         define_insn to the define_expand for lxvl and stxvl instructions.
10601         * config/rs6000/rs6000-builtin.def (BU_P9V_64BIT_VSX_2): Change LXVL
10602         and XL_LEN_R definitions to PURE.
10603
10604 2018-01-17  Uros Bizjak  <ubizjak@gmail.com>
10605
10606         * config/i386/i386.c (indirect_thunk_name): Declare regno
10607         as unsigned int.  Compare regno with INVALID_REGNUM.
10608         (output_indirect_thunk): Ditto.
10609         (output_indirect_thunk_function): Ditto.
10610         (ix86_code_end): Declare regno as unsigned int.  Use INVALID_REGNUM
10611         in the call to output_indirect_thunk_function.
10612
10613 2018-01-17  Richard Sandiford  <richard.sandiford@linaro.org>
10614
10615         PR middle-end/83884
10616         * expr.c (expand_expr_real_1): Use the size of GET_MODE (op0)
10617         rather than the size of inner_type to determine the stack slot size
10618         when handling VIEW_CONVERT_EXPRs on strict-alignment targets.
10619
10620 2018-01-16  Sebastian Peryt  <sebastian.peryt@intel.com>
10621
10622         PR target/83546
10623         * config/i386/i386.c (ix86_option_override_internal): Add PTA_RDRND
10624         to PTA_SILVERMONT.
10625
10626 2018-01-16  Michael Meissner  <meissner@linux.vnet.ibm.com>
10627
10628         * config.gcc (powerpc*-linux*-*): Add support for 64-bit little
10629         endian Linux systems to optionally enable multilibs for selecting
10630         the long double type if the user configured an explicit type.
10631         * config/rs6000/rs6000.h (TARGET_IEEEQUAD_MULTILIB): Indicate we
10632         have no long double multilibs if not defined.
10633         * config/rs6000/rs6000.c (rs6000_option_override_internal): Do not
10634         warn if the user used -mabi={ieee,ibm}longdouble and we built
10635         multilibs for long double.
10636         * config/rs6000/linux64.h (MULTILIB_DEFAULTS_IEEE): Define as the
10637         appropriate multilib option.
10638         (MULTILIB_DEFAULTS): Add MULTILIB_DEFAULTS_IEEE to the default
10639         multilib options.
10640         * config/rs6000/t-ldouble-linux64le-ibm: New configuration files
10641         for building long double multilibs.
10642         * config/rs6000/t-ldouble-linux64le-ieee: Likewise.
10643
10644 2018-01-16  John David Anglin  <danglin@gcc.gnu.org>
10645
10646         * config.gcc (hppa*-*-linux*): Change callee copies ABI to caller
10647         copies.
10648
10649         * config/pa.h (MALLOC_ABI_ALIGNMENT): Set 32-bit alignment default to
10650         64 bits.
10651         * config/pa/pa32-linux.h (MALLOC_ABI_ALIGNMENT): Set alignment to
10652         128 bits.
10653
10654         * config/pa/som.h (ASM_DECLARE_FUNCTION_NAME): Cleanup type and mode
10655         variables.
10656
10657         * config/pa/pa.c (pa_function_arg_size): Apply CEIL to GET_MODE_SIZE
10658         return value.
10659
10660 2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>
10661
10662         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): For an
10663         ADDR_EXPR, do not count the offset of a COMPONENT_REF twice.
10664
10665 2018-01-16  Kelvin Nilsen  <kelvin@gcc.gnu.org>
10666
10667         * config/rs6000/rs6000-p8swap.c (rs6000_gen_stvx): Generate
10668         different rtl trees depending on TARGET_64BIT.
10669         (rs6000_gen_lvx): Likewise.
10670
10671 2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>
10672
10673         * config/visium/visium.md (nop): Tweak comment.
10674         (hazard_nop): Likewise.
10675
10676 2018-01-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
10677
10678         * config/rs6000/rs6000.c (rs6000_opt_vars): Add entry for
10679         -mspeculate-indirect-jumps.
10680         * config/rs6000/rs6000.md (*call_indirect_elfv2<mode>): Disable
10681         for -mno-speculate-indirect-jumps.
10682         (*call_indirect_elfv2<mode>_nospec): New define_insn.
10683         (*call_value_indirect_elfv2<mode>): Disable for
10684         -mno-speculate-indirect-jumps.
10685         (*call_value_indirect_elfv2<mode>_nospec): New define_insn.
10686         (indirect_jump): Emit different RTL for
10687         -mno-speculate-indirect-jumps.
10688         (*indirect_jump<mode>): Disable for
10689         -mno-speculate-indirect-jumps.
10690         (*indirect_jump<mode>_nospec): New define_insn.
10691         (tablejump): Emit different RTL for
10692         -mno-speculate-indirect-jumps.
10693         (tablejumpsi): Disable for -mno-speculate-indirect-jumps.
10694         (tablejumpsi_nospec): New define_expand.
10695         (tablejumpdi): Disable for -mno-speculate-indirect-jumps.
10696         (tablejumpdi_nospec): New define_expand.
10697         (*tablejump<mode>_internal1): Disable for
10698         -mno-speculate-indirect-jumps.
10699         (*tablejump<mode>_internal1_nospec): New define_insn.
10700         * config/rs6000/rs6000.opt (mspeculate-indirect-jumps): New
10701         option.
10702
10703 2018-01-16  Artyom Skrobov tyomitch@gmail.com
10704
10705         * caller-save.c (insert_save): Drop unnecessary parameter.  All
10706         callers updated.
10707
10708 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
10709             Richard Biener  <rguenth@suse.de>
10710
10711         PR libgomp/83590
10712         * gimplify.c (gimplify_one_sizepos): For is_gimple_constant (expr)
10713         return early, inline manually is_gimple_sizepos.  Make sure if we
10714         call gimplify_expr we don't end up with a gimple constant.
10715         * tree.c (variably_modified_type_p): Don't return true for
10716         is_gimple_constant (_t).  Inline manually is_gimple_sizepos.
10717         * gimplify.h (is_gimple_sizepos): Remove.
10718
10719 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
10720
10721         PR tree-optimization/83857
10722         * tree-vect-loop.c (vect_analyze_loop_operations): Don't call
10723         vectorizable_live_operation for pure SLP statements.
10724         (vectorizable_live_operation): Handle PHIs.
10725
10726 2018-01-16  Richard Biener  <rguenther@suse.de>
10727
10728         PR tree-optimization/83867
10729         * tree-vect-stmts.c (vect_transform_stmt): Precompute
10730         nested_in_vect_loop_p since the scalar stmt may get invalidated.
10731
10732 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
10733
10734         PR c/83844
10735         * stor-layout.c (handle_warn_if_not_align): Use byte_position and
10736         multiple_of_p instead of unchecked tree_to_uhwi and UHWI check.
10737         If off is not INTEGER_CST, issue a may not be aligned warning
10738         rather than isn't aligned.  Use isn%'t rather than isn't.
10739         * fold-const.c (multiple_of_p) <case BIT_AND_EXPR>: Don't fall through
10740         into MULT_EXPR.
10741         <case MULT_EXPR>: Improve the case when bottom and one of the
10742         MULT_EXPR operands are INTEGER_CSTs and bottom is multiple of that
10743         operand, in that case check if the other operand is multiple of
10744         bottom divided by the INTEGER_CST operand.
10745
10746 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
10747
10748         PR target/83858
10749         * config/pa/pa.h (FUNCTION_ARG_SIZE): Delete.
10750         * config/pa/pa-protos.h (pa_function_arg_size): Declare.
10751         * config/pa/som.h (ASM_DECLARE_FUNCTION_NAME): Use
10752         pa_function_arg_size instead of FUNCTION_ARG_SIZE.
10753         * config/pa/pa.c (pa_function_arg_advance): Likewise.
10754         (pa_function_arg, pa_arg_partial_bytes): Likewise.
10755         (pa_function_arg_size): New function.
10756
10757 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
10758
10759         * fold-const.c (fold_ternary_loc): Construct the vec_perm_indices
10760         in a separate statement.
10761
10762 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
10763
10764         PR tree-optimization/83847
10765         * tree-vect-data-refs.c (vect_analyze_data_ref_accesses): Don't
10766         group gathers and scatters.
10767
10768 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
10769
10770         PR rtl-optimization/86620
10771         * params.def (max-sched-ready-insns): Bump minimum value to 1.
10772
10773         PR rtl-optimization/83213
10774         * recog.c (peep2_attempt): Copy over CROSSING_JUMP_P from peepinsn
10775         to last if both are JUMP_INSNs.
10776
10777         PR tree-optimization/83843
10778         * gimple-ssa-store-merging.c
10779         (imm_store_chain_info::output_merged_store): Handle bit_not_p on
10780         store_immediate_info for bswap/nop orig_stores.
10781
10782 2018-01-15  Andrew Waterman  <andrew@sifive.com>
10783
10784         * config/riscv/riscv.c (riscv_rtx_costs) <MULT>: Increase cost if
10785         !TARGET_MUL.
10786         <UDIV>: Increase cost if !TARGET_DIV.
10787
10788 2018-01-15  Segher Boessenkool  <segher@kernel.crashing.org>
10789
10790         * config/rs6000/rs6000.md (define_attr "type"): Remove delayed_cr.
10791         (define_attr "cr_logical_3op"): New.
10792         (cceq_ior_compare): Adjust.
10793         (cceq_ior_compare_complement): Adjust.
10794         (*cceq_rev_compare): Adjust.
10795         * config/rs6000/rs6000.c (rs6000_adjust_cost): Adjust.
10796         (is_cracked_insn): Adjust.
10797         (insn_must_be_first_in_group): Adjust.
10798         * config/rs6000/40x.md: Adjust.
10799         * config/rs6000/440.md: Adjust.
10800         * config/rs6000/476.md: Adjust.
10801         * config/rs6000/601.md: Adjust.
10802         * config/rs6000/603.md: Adjust.
10803         * config/rs6000/6xx.md: Adjust.
10804         * config/rs6000/7450.md: Adjust.
10805         * config/rs6000/7xx.md: Adjust.
10806         * config/rs6000/8540.md: Adjust.
10807         * config/rs6000/cell.md: Adjust.
10808         * config/rs6000/e300c2c3.md: Adjust.
10809         * config/rs6000/e500mc.md: Adjust.
10810         * config/rs6000/e500mc64.md: Adjust.
10811         * config/rs6000/e5500.md: Adjust.
10812         * config/rs6000/e6500.md: Adjust.
10813         * config/rs6000/mpc.md: Adjust.
10814         * config/rs6000/power4.md: Adjust.
10815         * config/rs6000/power5.md: Adjust.
10816         * config/rs6000/power6.md: Adjust.
10817         * config/rs6000/power7.md: Adjust.
10818         * config/rs6000/power8.md: Adjust.
10819         * config/rs6000/power9.md: Adjust.
10820         * config/rs6000/rs64.md: Adjust.
10821         * config/rs6000/titan.md: Adjust.
10822
10823 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
10824
10825         * config/i386/predicates.md (indirect_branch_operand): Rewrite
10826         ix86_indirect_branch_register logic.
10827
10828 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
10829
10830         * config/i386/constraints.md (Bs): Update
10831         ix86_indirect_branch_register check.  Don't check
10832         ix86_indirect_branch_register with GOT_memory_operand.
10833         (Bw): Likewise.
10834         * config/i386/predicates.md (GOT_memory_operand): Don't check
10835         ix86_indirect_branch_register here.
10836         (GOT32_symbol_operand): Likewise.
10837
10838 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
10839
10840         * config/i386/predicates.md (constant_call_address_operand):
10841         Rewrite ix86_indirect_branch_register logic.
10842         (sibcall_insn_operand): Likewise.
10843
10844 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
10845
10846         * config/i386/constraints.md (Bs): Replace
10847         ix86_indirect_branch_thunk_register with
10848         ix86_indirect_branch_register.
10849         (Bw): Likewise.
10850         * config/i386/i386.md (indirect_jump): Likewise.
10851         (tablejump): Likewise.
10852         (*sibcall_memory): Likewise.
10853         (*sibcall_value_memory): Likewise.
10854         Peepholes of indirect call and jump via memory: Likewise.
10855         * config/i386/i386.opt: Likewise.
10856         * config/i386/predicates.md (indirect_branch_operand): Likewise.
10857         (GOT_memory_operand): Likewise.
10858         (call_insn_operand): Likewise.
10859         (sibcall_insn_operand): Likewise.
10860         (GOT32_symbol_operand): Likewise.
10861
10862 2018-01-15  Jakub Jelinek  <jakub@redhat.com>
10863
10864         PR middle-end/83837
10865         * omp-expand.c (expand_omp_atomic_pipeline): Use loaded_val
10866         type rather than type addr's type points to.
10867         (expand_omp_atomic_mutex): Likewise.
10868         (expand_omp_atomic): Likewise.
10869
10870 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
10871
10872         PR target/83839
10873         * config/i386/i386.c (output_indirect_thunk_function): Use
10874         ASM_OUTPUT_LABEL, instead of ASM_OUTPUT_DEF, for TARGET_MACHO
10875         for  __x86_return_thunk.
10876
10877 2018-01-15  Richard Biener  <rguenther@suse.de>
10878
10879         PR middle-end/83850
10880         * expmed.c (extract_bit_field_1): Fix typo.
10881
10882 2018-01-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
10883
10884         PR target/83687
10885         * config/arm/iterators.md (VF): New mode iterator.
10886         * config/arm/neon.md (neon_vabd<mode>_2): Use the above.
10887         Remove integer-related logic from pattern.
10888         (neon_vabd<mode>_3): Likewise.
10889
10890 2018-01-15  Jakub Jelinek  <jakub@redhat.com>
10891
10892         PR middle-end/82694
10893         * common.opt (fstrict-overflow): No longer an alias.
10894         (fwrapv-pointer): New option.
10895         * tree.h (TYPE_OVERFLOW_WRAPS, TYPE_OVERFLOW_UNDEFINED): Define
10896         also for pointer types based on flag_wrapv_pointer.
10897         * opts.c (common_handle_option) <case OPT_fstrict_overflow>: Set
10898         opts->x_flag_wrap[pv] to !value, clear opts->x_flag_trapv if
10899         opts->x_flag_wrapv got set.
10900         * fold-const.c (fold_comparison, fold_binary_loc): Revert 2017-08-01
10901         changes, just use TYPE_OVERFLOW_UNDEFINED on pointer type instead of
10902         POINTER_TYPE_OVERFLOW_UNDEFINED.
10903         * match.pd: Likewise in address comparison pattern.
10904         * doc/invoke.texi: Document -fwrapv and -fstrict-overflow.
10905
10906 2018-01-15  Richard Biener  <rguenther@suse.de>
10907
10908         PR lto/83804
10909         * tree.c (free_lang_data_in_type): Always unlink TYPE_DECLs
10910         from TYPE_FIELDS.  Free TYPE_BINFO if not used by devirtualization.
10911         Reset type names to their identifier if their TYPE_DECL doesn't
10912         have linkage (and thus is used for ODR and devirt).
10913         (save_debug_info_for_decl): Remove.
10914         (save_debug_info_for_type): Likewise.
10915         (add_tree_to_fld_list): Adjust.
10916         * tree-pretty-print.c (dump_generic_node): Make dumping of
10917         type names more robust.
10918
10919 2018-01-15  Richard Biener  <rguenther@suse.de>
10920
10921         * BASE-VER: Bump to 8.0.1.
10922
10923 2018-01-14  Martin Sebor  <msebor@redhat.com>
10924
10925         PR other/83508
10926         * builtins.c (check_access): Avoid warning when the no-warning bit
10927         is set.
10928
10929 2018-01-14  Cory Fields  <cory-nospam-@coryfields.com>
10930
10931         * tree-ssa-loop-im.c (sort_bbs_in_loop_postorder_cmp): Stabilize sort.
10932         * ira-color (allocno_hard_regs_compare): Likewise.
10933
10934 2018-01-14  Nathan Rossi  <nathan@nathanrossi.com>
10935
10936         PR target/83013
10937         * config/microblaze/microblaze.c (microblaze_asm_output_ident):
10938         Use .pushsection/.popsection.
10939
10940 2018-01-14  Martin Sebor  <msebor@redhat.com>
10941
10942         PR c++/81327
10943         * doc/invoke.texi (-Wlass-memaccess): Document suppression by casting.
10944
10945 2018-01-14  Jakub Jelinek  <jakub@redhat.com>
10946
10947         * config.gcc (i[34567]86-*-*): Remove one duplicate gfniintrin.h
10948         entry from extra_headers.
10949         (x86_64-*-*): Remove two duplicate gfniintrin.h entries from
10950         extra_headers, make the list bitwise identical to the i?86-*-* one.
10951
10952 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
10953
10954         * config/i386/i386.c (ix86_set_indirect_branch_type): Disallow
10955         -mcmodel=large with -mindirect-branch=thunk,
10956         -mindirect-branch=thunk-extern, -mfunction-return=thunk and
10957         -mfunction-return=thunk-extern.
10958         * doc/invoke.texi: Document -mcmodel=large is incompatible with
10959         -mindirect-branch=thunk, -mindirect-branch=thunk-extern,
10960         -mfunction-return=thunk and -mfunction-return=thunk-extern.
10961
10962 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
10963
10964         * config/i386/i386.c (print_reg): Print the name of the full
10965         integer register without '%'.
10966         (ix86_print_operand): Handle 'V'.
10967         * doc/extend.texi: Document 'V' modifier.
10968
10969 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
10970
10971         * config/i386/constraints.md (Bs): Disallow memory operand for
10972         -mindirect-branch-register.
10973         (Bw): Likewise.
10974         * config/i386/predicates.md (indirect_branch_operand): Likewise.
10975         (GOT_memory_operand): Likewise.
10976         (call_insn_operand): Likewise.
10977         (sibcall_insn_operand): Likewise.
10978         (GOT32_symbol_operand): Likewise.
10979         * config/i386/i386.md (indirect_jump): Call convert_memory_address
10980         for -mindirect-branch-register.
10981         (tablejump): Likewise.
10982         (*sibcall_memory): Likewise.
10983         (*sibcall_value_memory): Likewise.
10984         Disallow peepholes of indirect call and jump via memory for
10985         -mindirect-branch-register.
10986         (*call_pop): Replace m with Bw.
10987         (*call_value_pop): Likewise.
10988         (*sibcall_pop_memory): Replace m with Bs.
10989         * config/i386/i386.opt (mindirect-branch-register): New option.
10990         * doc/invoke.texi: Document -mindirect-branch-register option.
10991
10992 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
10993
10994         * config/i386/i386-protos.h (ix86_output_function_return): New.
10995         * config/i386/i386.c (ix86_set_indirect_branch_type): Also
10996         set function_return_type.
10997         (indirect_thunk_name): Add ret_p to indicate thunk for function
10998         return.
10999         (output_indirect_thunk_function): Pass false to
11000         indirect_thunk_name.
11001         (ix86_output_indirect_branch_via_reg): Likewise.
11002         (ix86_output_indirect_branch_via_push): Likewise.
11003         (output_indirect_thunk_function): Create alias for function
11004         return thunk if regno < 0.
11005         (ix86_output_function_return): New function.
11006         (ix86_handle_fndecl_attribute): Handle function_return.
11007         (ix86_attribute_table): Add function_return.
11008         * config/i386/i386.h (machine_function): Add
11009         function_return_type.
11010         * config/i386/i386.md (simple_return_internal): Use
11011         ix86_output_function_return.
11012         (simple_return_internal_long): Likewise.
11013         * config/i386/i386.opt (mfunction-return=): New option.
11014         (indirect_branch): Mention -mfunction-return=.
11015         * doc/extend.texi: Document function_return function attribute.
11016         * doc/invoke.texi: Document -mfunction-return= option.
11017
11018 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
11019
11020         * config/i386/i386-opts.h (indirect_branch): New.
11021         * config/i386/i386-protos.h (ix86_output_indirect_jmp): Likewise.
11022         * config/i386/i386.c (ix86_using_red_zone): Disallow red-zone
11023         with local indirect jump when converting indirect call and jump.
11024         (ix86_set_indirect_branch_type): New.
11025         (ix86_set_current_function): Call ix86_set_indirect_branch_type.
11026         (indirectlabelno): New.
11027         (indirect_thunk_needed): Likewise.
11028         (indirect_thunk_bnd_needed): Likewise.
11029         (indirect_thunks_used): Likewise.
11030         (indirect_thunks_bnd_used): Likewise.
11031         (INDIRECT_LABEL): Likewise.
11032         (indirect_thunk_name): Likewise.
11033         (output_indirect_thunk): Likewise.
11034         (output_indirect_thunk_function): Likewise.
11035         (ix86_output_indirect_branch_via_reg): Likewise.
11036         (ix86_output_indirect_branch_via_push): Likewise.
11037         (ix86_output_indirect_branch): Likewise.
11038         (ix86_output_indirect_jmp): Likewise.
11039         (ix86_code_end): Call output_indirect_thunk_function if needed.
11040         (ix86_output_call_insn): Call ix86_output_indirect_branch if
11041         needed.
11042         (ix86_handle_fndecl_attribute): Handle indirect_branch.
11043         (ix86_attribute_table): Add indirect_branch.
11044         * config/i386/i386.h (machine_function): Add indirect_branch_type
11045         and has_local_indirect_jump.
11046         * config/i386/i386.md (indirect_jump): Set has_local_indirect_jump
11047         to true.
11048         (tablejump): Likewise.
11049         (*indirect_jump): Use ix86_output_indirect_jmp.
11050         (*tablejump_1): Likewise.
11051         (simple_return_indirect_internal): Likewise.
11052         * config/i386/i386.opt (mindirect-branch=): New option.
11053         (indirect_branch): New.
11054         (keep): Likewise.
11055         (thunk): Likewise.
11056         (thunk-inline): Likewise.
11057         (thunk-extern): Likewise.
11058         * doc/extend.texi: Document indirect_branch function attribute.
11059         * doc/invoke.texi: Document -mindirect-branch= option.
11060
11061 2018-01-14  Jan Hubicka  <hubicka@ucw.cz>
11062
11063         PR ipa/83051
11064         * ipa-inline.c (edge_badness): Tolerate roundoff errors.
11065
11066 2018-01-14  Richard Sandiford  <richard.sandiford@linaro.org>
11067
11068         * ipa-inline.c (want_inline_small_function_p): Return false if
11069         inlining has already failed with CIF_FINAL_ERROR.
11070         (update_caller_keys): Call want_inline_small_function_p before
11071         can_inline_edge_p.
11072         (update_callee_keys): Likewise.
11073
11074 2018-01-10  Kelvin Nilsen  <kelvin@gcc.gnu.org>
11075
11076         * config/rs6000/rs6000-p8swap.c (rs6000_sum_of_two_registers_p):
11077         New function.
11078         (rs6000_quadword_masked_address_p): Likewise.
11079         (quad_aligned_load_p): Likewise.
11080         (quad_aligned_store_p): Likewise.
11081         (const_load_sequence_p): Add comment to describe the outer-most loop.
11082         (mimic_memory_attributes_and_flags): New function.
11083         (rs6000_gen_stvx): Likewise.
11084         (replace_swapped_aligned_store): Likewise.
11085         (rs6000_gen_lvx): Likewise.
11086         (replace_swapped_aligned_load): Likewise.
11087         (replace_swapped_load_constant): Capitalize argument name in
11088         comment describing this function.
11089         (rs6000_analyze_swaps): Add a third pass to search for vector loads
11090         and stores that access quad-word aligned addresses and replace
11091         with stvx or lvx instructions when appropriate.
11092         * config/rs6000/rs6000-protos.h (rs6000_sum_of_two_registers_p):
11093         New function prototype.
11094         (rs6000_quadword_masked_address_p): Likewise.
11095         (rs6000_gen_lvx): Likewise.
11096         (rs6000_gen_stvx): Likewise.
11097         * config/rs6000/vsx.md (*vsx_le_perm_load_<mode>): For modes
11098         VSX_D (V2DF, V2DI), modify this split to select lvx instruction
11099         when memory address is aligned.
11100         (*vsx_le_perm_load_<mode>): For modes VSX_W (V4SF, V4SI), modify
11101         this split to select lvx instruction when memory address is aligned.
11102         (*vsx_le_perm_load_v8hi): Modify this split to select lvx
11103         instruction when memory address is aligned.
11104         (*vsx_le_perm_load_v16qi): Likewise.
11105         (four unnamed splitters): Modify to select the stvx instruction
11106         when memory is aligned.
11107
11108 2018-01-13  Jan Hubicka  <hubicka@ucw.cz>
11109
11110         * predict.c (determine_unlikely_bbs): Handle correctly BBs
11111         which appears in the queue multiple times.
11112
11113 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11114             Alan Hayward  <alan.hayward@arm.com>
11115             David Sherwood  <david.sherwood@arm.com>
11116
11117         * tree-vectorizer.h (vec_lower_bound): New structure.
11118         (_loop_vec_info): Add check_nonzero and lower_bounds.
11119         (LOOP_VINFO_CHECK_NONZERO): New macro.
11120         (LOOP_VINFO_LOWER_BOUNDS): Likewise.
11121         (LOOP_REQUIRES_VERSIONING_FOR_ALIAS): Check lower_bounds too.
11122         * tree-data-ref.h (dr_with_seg_len): Add access_size and align
11123         fields.  Make seg_len the distance travelled, not including the
11124         access size.
11125         (dr_direction_indicator): Declare.
11126         (dr_zero_step_indicator): Likewise.
11127         (dr_known_forward_stride_p): Likewise.
11128         * tree-data-ref.c: Include stringpool.h, tree-vrp.h and
11129         tree-ssanames.h.
11130         (runtime_alias_check_p): Allow runtime alias checks with
11131         variable strides.
11132         (operator ==): Compare access_size and align.
11133         (prune_runtime_alias_test_list): Rework for new distinction between
11134         the access_size and seg_len.
11135         (create_intersect_range_checks_index): Likewise.  Cope with polynomial
11136         segment lengths.
11137         (get_segment_min_max): New function.
11138         (create_intersect_range_checks): Use it.
11139         (dr_step_indicator): New function.
11140         (dr_direction_indicator): Likewise.
11141         (dr_zero_step_indicator): Likewise.
11142         (dr_known_forward_stride_p): Likewise.
11143         * tree-loop-distribution.c (data_ref_segment_size): Return
11144         DR_STEP * (niters - 1).
11145         (compute_alias_check_pairs): Update call to the dr_with_seg_len
11146         constructor.
11147         * tree-vect-data-refs.c (vect_check_nonzero_value): New function.
11148         (vect_preserves_scalar_order_p): New function, split out from...
11149         (vect_analyze_data_ref_dependence): ...here.  Check for zero steps.
11150         (vect_vfa_segment_size): Return DR_STEP * (length_factor - 1).
11151         (vect_vfa_access_size): New function.
11152         (vect_vfa_align): Likewise.
11153         (vect_compile_time_alias): Take access_size_a and access_b arguments.
11154         (dump_lower_bound): New function.
11155         (vect_check_lower_bound): Likewise.
11156         (vect_small_gap_p): Likewise.
11157         (vectorizable_with_step_bound_p): Likewise.
11158         (vect_prune_runtime_alias_test_list): Ignore cross-iteration
11159         depencies if the vectorization factor is 1.  Convert the checks
11160         for nonzero steps into checks on the bounds of DR_STEP.  Try using
11161         a bunds check for variable steps if the minimum required step is
11162         relatively small. Update calls to the dr_with_seg_len
11163         constructor and to vect_compile_time_alias.
11164         * tree-vect-loop-manip.c (vect_create_cond_for_lower_bounds): New
11165         function.
11166         (vect_loop_versioning): Call it.
11167         * tree-vect-loop.c (vect_analyze_loop_2): Clear LOOP_VINFO_LOWER_BOUNDS
11168         when retrying.
11169         (vect_estimate_min_profitable_iters): Account for any bounds checks.
11170
11171 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11172             Alan Hayward  <alan.hayward@arm.com>
11173             David Sherwood  <david.sherwood@arm.com>
11174
11175         * doc/sourcebuild.texi (vect_scatter_store): Document.
11176         * optabs.def (scatter_store_optab, mask_scatter_store_optab): New
11177         optabs.
11178         * doc/md.texi (scatter_store@var{m}, mask_scatter_store@var{m}):
11179         Document.
11180         * genopinit.c (main): Add supports_vec_scatter_store and
11181         supports_vec_scatter_store_cached to target_optabs.
11182         * gimple.h (gimple_expr_type): Handle IFN_SCATTER_STORE and
11183         IFN_MASK_SCATTER_STORE.
11184         * internal-fn.def (SCATTER_STORE, MASK_SCATTER_STORE): New internal
11185         functions.
11186         * internal-fn.h (internal_store_fn_p): Declare.
11187         (internal_fn_stored_value_index): Likewise.
11188         * internal-fn.c (scatter_store_direct): New macro.
11189         (expand_scatter_store_optab_fn): New function.
11190         (direct_scatter_store_optab_supported_p): New macro.
11191         (internal_store_fn_p): New function.
11192         (internal_gather_scatter_fn_p): Handle IFN_SCATTER_STORE and
11193         IFN_MASK_SCATTER_STORE.
11194         (internal_fn_mask_index): Likewise.
11195         (internal_fn_stored_value_index): New function.
11196         (internal_gather_scatter_fn_supported_p): Adjust operand numbers
11197         for scatter stores.
11198         * optabs-query.h (supports_vec_scatter_store_p): Declare.
11199         * optabs-query.c (supports_vec_scatter_store_p): New function.
11200         * tree-vectorizer.h (vect_get_store_rhs): Declare.
11201         * tree-vect-data-refs.c (vect_analyze_data_ref_access): Return
11202         true for scatter stores.
11203         (vect_gather_scatter_fn_p): Handle scatter stores too.
11204         (vect_check_gather_scatter): Consider using scatter stores if
11205         supports_vec_scatter_store_p.
11206         * tree-vect-patterns.c (vect_try_gather_scatter_pattern): Handle
11207         scatter stores too.
11208         * tree-vect-stmts.c (exist_non_indexing_operands_for_use_p): Use
11209         internal_fn_stored_value_index.
11210         (check_load_store_masking): Handle scatter stores too.
11211         (vect_get_store_rhs): Make public.
11212         (vectorizable_call): Use internal_store_fn_p.
11213         (vectorizable_store): Handle scatter store internal functions.
11214         (vect_transform_stmt): Compare GROUP_STORE_COUNT with GROUP_SIZE
11215         when deciding whether the end of the group has been reached.
11216         * config/aarch64/aarch64.md (UNSPEC_ST1_SCATTER): New unspec.
11217         * config/aarch64/aarch64-sve.md (scatter_store<mode>): New expander.
11218         (mask_scatter_store<mode>): New insns.
11219
11220 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11221             Alan Hayward  <alan.hayward@arm.com>
11222             David Sherwood  <david.sherwood@arm.com>
11223
11224         * tree-vectorizer.h (vect_gather_scatter_fn_p): Declare.
11225         * tree-vect-data-refs.c (vect_gather_scatter_fn_p): Make public.
11226         * tree-vect-stmts.c (vect_truncate_gather_scatter_offset): New
11227         function.
11228         (vect_use_strided_gather_scatters_p): Take a masked_p argument.
11229         Use vect_truncate_gather_scatter_offset if we can't treat the
11230         operation as a normal gather load or scatter store.
11231         (get_group_load_store_type): Take the gather_scatter_info
11232         as argument.  Try using a gather load or scatter store for
11233         single-element groups.
11234         (get_load_store_type): Update calls to get_group_load_store_type
11235         and vect_use_strided_gather_scatters_p.
11236
11237 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11238             Alan Hayward  <alan.hayward@arm.com>
11239             David Sherwood  <david.sherwood@arm.com>
11240
11241         * tree-vectorizer.h (vect_create_data_ref_ptr): Take an extra
11242         optional tree argument.
11243         * tree-vect-data-refs.c (vect_check_gather_scatter): Check for
11244         null target hooks.
11245         (vect_create_data_ref_ptr): Take the iv_step as an optional argument,
11246         but continue to use the current value as a fallback.
11247         (bump_vector_ptr): Use operand_equal_p rather than tree_int_cst_compare
11248         to compare the updates.
11249         * tree-vect-stmts.c (vect_use_strided_gather_scatters_p): New function.
11250         (get_load_store_type): Use it when handling a strided access.
11251         (vect_get_strided_load_store_ops): New function.
11252         (vect_get_data_ptr_increment): Likewise.
11253         (vectorizable_load): Handle strided gather loads.  Always pass
11254         a step to vect_create_data_ref_ptr and bump_vector_ptr.
11255
11256 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11257             Alan Hayward  <alan.hayward@arm.com>
11258             David Sherwood  <david.sherwood@arm.com>
11259
11260         * doc/md.texi (gather_load@var{m}): Document.
11261         (mask_gather_load@var{m}): Likewise.
11262         * genopinit.c (main): Add supports_vec_gather_load and
11263         supports_vec_gather_load_cached to target_optabs.
11264         * optabs-tree.c (init_tree_optimization_optabs): Use
11265         ggc_cleared_alloc to allocate target_optabs.
11266         * optabs.def (gather_load_optab, mask_gather_laod_optab): New optabs.
11267         * internal-fn.def (GATHER_LOAD, MASK_GATHER_LOAD): New internal
11268         functions.
11269         * internal-fn.h (internal_load_fn_p): Declare.
11270         (internal_gather_scatter_fn_p): Likewise.
11271         (internal_fn_mask_index): Likewise.
11272         (internal_gather_scatter_fn_supported_p): Likewise.
11273         * internal-fn.c (gather_load_direct): New macro.
11274         (expand_gather_load_optab_fn): New function.
11275         (direct_gather_load_optab_supported_p): New macro.
11276         (direct_internal_fn_optab): New function.
11277         (internal_load_fn_p): Likewise.
11278         (internal_gather_scatter_fn_p): Likewise.
11279         (internal_fn_mask_index): Likewise.
11280         (internal_gather_scatter_fn_supported_p): Likewise.
11281         * optabs-query.c (supports_at_least_one_mode_p): New function.
11282         (supports_vec_gather_load_p): Likewise.
11283         * optabs-query.h (supports_vec_gather_load_p): Declare.
11284         * tree-vectorizer.h (gather_scatter_info): Add ifn, element_type
11285         and memory_type field.
11286         (NUM_PATTERNS): Bump to 15.
11287         * tree-vect-data-refs.c: Include internal-fn.h.
11288         (vect_gather_scatter_fn_p): New function.
11289         (vect_describe_gather_scatter_call): Likewise.
11290         (vect_check_gather_scatter): Try using internal functions for
11291         gather loads.  Recognize existing calls to a gather load function.
11292         (vect_analyze_data_refs): Consider using gather loads if
11293         supports_vec_gather_load_p.
11294         * tree-vect-patterns.c (vect_get_load_store_mask): New function.
11295         (vect_get_gather_scatter_offset_type): Likewise.
11296         (vect_convert_mask_for_vectype): Likewise.
11297         (vect_add_conversion_to_patterm): Likewise.
11298         (vect_try_gather_scatter_pattern): Likewise.
11299         (vect_recog_gather_scatter_pattern): New pattern recognizer.
11300         (vect_vect_recog_func_ptrs): Add it.
11301         * tree-vect-stmts.c (exist_non_indexing_operands_for_use_p): Use
11302         internal_fn_mask_index and internal_gather_scatter_fn_p.
11303         (check_load_store_masking): Take the gather_scatter_info as an
11304         argument and handle gather loads.
11305         (vect_get_gather_scatter_ops): New function.
11306         (vectorizable_call): Check internal_load_fn_p.
11307         (vectorizable_load): Likewise.  Handle gather load internal
11308         functions.
11309         (vectorizable_store): Update call to check_load_store_masking.
11310         * config/aarch64/aarch64.md (UNSPEC_LD1_GATHER): New unspec.
11311         * config/aarch64/iterators.md (SVE_S, SVE_D): New mode iterators.
11312         * config/aarch64/predicates.md (aarch64_gather_scale_operand_w)
11313         (aarch64_gather_scale_operand_d): New predicates.
11314         * config/aarch64/aarch64-sve.md (gather_load<mode>): New expander.
11315         (mask_gather_load<mode>): New insns.
11316
11317 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11318             Alan Hayward  <alan.hayward@arm.com>
11319             David Sherwood  <david.sherwood@arm.com>
11320
11321         * optabs.def (fold_left_plus_optab): New optab.
11322         * doc/md.texi (fold_left_plus_@var{m}): Document.
11323         * internal-fn.def (IFN_FOLD_LEFT_PLUS): New internal function.
11324         * internal-fn.c (fold_left_direct): Define.
11325         (expand_fold_left_optab_fn): Likewise.
11326         (direct_fold_left_optab_supported_p): Likewise.
11327         * fold-const-call.c (fold_const_fold_left): New function.
11328         (fold_const_call): Use it to fold CFN_FOLD_LEFT_PLUS.
11329         * tree-parloops.c (valid_reduction_p): New function.
11330         (gather_scalar_reductions): Use it.
11331         * tree-vectorizer.h (FOLD_LEFT_REDUCTION): New vect_reduction_type.
11332         (vect_finish_replace_stmt): Declare.
11333         * tree-vect-loop.c (fold_left_reduction_fn): New function.
11334         (needs_fold_left_reduction_p): New function, split out from...
11335         (vect_is_simple_reduction): ...here.  Accept reductions that
11336         forbid reassociation, but give them type FOLD_LEFT_REDUCTION.
11337         (vect_force_simple_reduction): Also store the reduction type in
11338         the assignment's STMT_VINFO_REDUC_TYPE.
11339         (vect_model_reduction_cost): Handle FOLD_LEFT_REDUCTION.
11340         (merge_with_identity): New function.
11341         (vect_expand_fold_left): Likewise.
11342         (vectorize_fold_left_reduction): Likewise.
11343         (vectorizable_reduction): Handle FOLD_LEFT_REDUCTION.  Leave the
11344         scalar phi in place for it.  Check for target support and reject
11345         cases that would reassociate the operation.  Defer the transform
11346         phase to vectorize_fold_left_reduction.
11347         * config/aarch64/aarch64.md (UNSPEC_FADDA): New unspec.
11348         * config/aarch64/aarch64-sve.md (fold_left_plus_<mode>): New expander.
11349         (*fold_left_plus_<mode>, *pred_fold_left_plus_<mode>): New insns.
11350
11351 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11352
11353         * tree-if-conv.c (predicate_mem_writes): Remove redundant
11354         call to ifc_temp_var.
11355
11356 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11357             Alan Hayward  <alan.hayward@arm.com>
11358             David Sherwood  <david.sherwood@arm.com>
11359
11360         * target.def (legitimize_address_displacement): Take the original
11361         offset as a poly_int.
11362         * targhooks.h (default_legitimize_address_displacement): Update
11363         accordingly.
11364         * targhooks.c (default_legitimize_address_displacement): Likewise.
11365         * doc/tm.texi: Regenerate.
11366         * lra-constraints.c (base_plus_disp_to_reg): Take the displacement
11367         as an argument, moving assert of ad->disp == ad->disp_term to...
11368         (process_address_1): ...here.  Update calls to base_plus_disp_to_reg.
11369         Try calling targetm.legitimize_address_displacement before expanding
11370         the address rather than afterwards, and adjust for the new interface.
11371         * config/aarch64/aarch64.c (aarch64_legitimize_address_displacement):
11372         Match the new hook interface.  Handle SVE addresses.
11373         * config/sh/sh.c (sh_legitimize_address_displacement): Make the
11374         new hook interface.
11375
11376 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11377
11378         * Makefile.in (OBJS): Add early-remat.o.
11379         * target.def (select_early_remat_modes): New hook.
11380         * doc/tm.texi.in (TARGET_SELECT_EARLY_REMAT_MODES): New hook.
11381         * doc/tm.texi: Regenerate.
11382         * targhooks.h (default_select_early_remat_modes): Declare.
11383         * targhooks.c (default_select_early_remat_modes): New function.
11384         * timevar.def (TV_EARLY_REMAT): New timevar.
11385         * passes.def (pass_early_remat): New pass.
11386         * tree-pass.h (make_pass_early_remat): Declare.
11387         * early-remat.c: New file.
11388         * config/aarch64/aarch64.c (aarch64_select_early_remat_modes): New
11389         function.
11390         (TARGET_SELECT_EARLY_REMAT_MODES): Define.
11391
11392 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11393             Alan Hayward  <alan.hayward@arm.com>
11394             David Sherwood  <david.sherwood@arm.com>
11395
11396         * tree-vect-loop-manip.c (vect_gen_scalar_loop_niters): Replace
11397         vfm1 with a bound_epilog parameter.
11398         (vect_do_peeling): Update calls accordingly, and move the prologue
11399         call earlier in the function.  Treat the base bound_epilog as 0 for
11400         fully-masked loops and retain vf - 1 for other loops.  Add 1 to
11401         this base when peeling for gaps.
11402         * tree-vect-loop.c (vect_analyze_loop_2): Allow peeling for gaps
11403         with fully-masked loops.
11404         (vect_estimate_min_profitable_iters): Handle the single peeled
11405         iteration in that case.
11406
11407 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11408             Alan Hayward  <alan.hayward@arm.com>
11409             David Sherwood  <david.sherwood@arm.com>
11410
11411         * tree-vect-data-refs.c (vect_analyze_group_access_1): Allow
11412         single-element interleaving even if the size is not a power of 2.
11413         * tree-vect-stmts.c (get_load_store_type): Disallow elementwise
11414         accesses for single-element interleaving if the group size is
11415         not a power of 2.
11416
11417 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11418             Alan Hayward  <alan.hayward@arm.com>
11419             David Sherwood  <david.sherwood@arm.com>
11420
11421         * doc/md.texi (fold_extract_last_@var{m}): Document.
11422         * doc/sourcebuild.texi (vect_fold_extract_last): Likewise.
11423         * optabs.def (fold_extract_last_optab): New optab.
11424         * internal-fn.def (FOLD_EXTRACT_LAST): New internal function.
11425         * internal-fn.c (fold_extract_direct): New macro.
11426         (expand_fold_extract_optab_fn): Likewise.
11427         (direct_fold_extract_optab_supported_p): Likewise.
11428         * tree-vectorizer.h (EXTRACT_LAST_REDUCTION): New vect_reduction_type.
11429         * tree-vect-loop.c (vect_model_reduction_cost): Handle
11430         EXTRACT_LAST_REDUCTION.
11431         (get_initial_def_for_reduction): Do not create an initial vector
11432         for EXTRACT_LAST_REDUCTION reductions.
11433         (vectorizable_reduction): Leave the scalar phi in place for
11434         EXTRACT_LAST_REDUCTIONs.  Try using EXTRACT_LAST_REDUCTION
11435         ahead of INTEGER_INDUC_COND_REDUCTION.  Do not check for an
11436         epilogue code for EXTRACT_LAST_REDUCTION and defer the
11437         transform phase to vectorizable_condition.
11438         * tree-vect-stmts.c (vect_finish_stmt_generation_1): New function,
11439         split out from...
11440         (vect_finish_stmt_generation): ...here.
11441         (vect_finish_replace_stmt): New function.
11442         (vectorizable_condition): Handle EXTRACT_LAST_REDUCTION.
11443         * config/aarch64/aarch64-sve.md (fold_extract_last_<mode>): New
11444         pattern.
11445         * config/aarch64/aarch64.md (UNSPEC_CLASTB): New unspec.
11446
11447 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11448             Alan Hayward  <alan.hayward@arm.com>
11449             David Sherwood  <david.sherwood@arm.com>
11450
11451         * doc/md.texi (extract_last_@var{m}): Document.
11452         * optabs.def (extract_last_optab): New optab.
11453         * internal-fn.def (EXTRACT_LAST): New internal function.
11454         * internal-fn.c (cond_unary_direct): New macro.
11455         (expand_cond_unary_optab_fn): Likewise.
11456         (direct_cond_unary_optab_supported_p): Likewise.
11457         * tree-vect-loop.c (vectorizable_live_operation): Allow fully-masked
11458         loops using EXTRACT_LAST.
11459         * config/aarch64/aarch64-sve.md (aarch64_sve_lastb<mode>): Rename to...
11460         (extract_last_<mode>): ...this optab.
11461         (vec_extract<mode><Vel>): Update accordingly.
11462
11463 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11464             Alan Hayward  <alan.hayward@arm.com>
11465             David Sherwood  <david.sherwood@arm.com>
11466
11467         * target.def (empty_mask_is_expensive): New hook.
11468         * doc/tm.texi.in (TARGET_VECTORIZE_EMPTY_MASK_IS_EXPENSIVE): New hook.
11469         * doc/tm.texi: Regenerate.
11470         * targhooks.h (default_empty_mask_is_expensive): Declare.
11471         * targhooks.c (default_empty_mask_is_expensive): New function.
11472         * tree-vectorizer.c (vectorize_loops): Only call optimize_mask_stores
11473         if the target says that empty masks are expensive.
11474         * config/aarch64/aarch64.c (aarch64_empty_mask_is_expensive):
11475         New function.
11476         (TARGET_VECTORIZE_EMPTY_MASK_IS_EXPENSIVE): Redefine.
11477
11478 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11479             Alan Hayward  <alan.hayward@arm.com>
11480             David Sherwood  <david.sherwood@arm.com>
11481
11482         * tree-vectorizer.h (_loop_vec_info::mask_skip_niters): New field.
11483         (LOOP_VINFO_MASK_SKIP_NITERS): New macro.
11484         (vect_use_loop_mask_for_alignment_p): New function.
11485         (vect_prepare_for_masked_peels, vect_gen_while_not): Declare.
11486         * tree-vect-loop-manip.c (vect_set_loop_masks_directly): Add an
11487         niters_skip argument.  Make sure that the first niters_skip elements
11488         of the first iteration are inactive.
11489         (vect_set_loop_condition_masked): Handle LOOP_VINFO_MASK_SKIP_NITERS.
11490         Update call to vect_set_loop_masks_directly.
11491         (get_misalign_in_elems): New function, split out from...
11492         (vect_gen_prolog_loop_niters): ...here.
11493         (vect_update_init_of_dr): Take a code argument that specifies whether
11494         the adjustment should be added or subtracted.
11495         (vect_update_init_of_drs): Likewise.
11496         (vect_prepare_for_masked_peels): New function.
11497         (vect_do_peeling): Skip prologue peeling if we're using a mask
11498         instead.  Update call to vect_update_inits_of_drs.
11499         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
11500         mask_skip_niters.
11501         (vect_analyze_loop_2): Allow fully-masked loops with peeling for
11502         alignment.  Do not include the number of peeled iterations in
11503         the minimum threshold in that case.
11504         (vectorizable_induction): Adjust the start value down by
11505         LOOP_VINFO_MASK_SKIP_NITERS iterations.
11506         (vect_transform_loop): Call vect_prepare_for_masked_peels.
11507         Take the number of skipped iterations into account when calculating
11508         the loop bounds.
11509         * tree-vect-stmts.c (vect_gen_while_not): New function.
11510
11511 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11512             Alan Hayward  <alan.hayward@arm.com>
11513             David Sherwood  <david.sherwood@arm.com>
11514
11515         * doc/sourcebuild.texi (vect_fully_masked): Document.
11516         * params.def (PARAM_MIN_VECT_LOOP_BOUND): Change minimum and
11517         default value to 0.
11518         * tree-vect-loop.c (vect_analyze_loop_costing): New function,
11519         split out from...
11520         (vect_analyze_loop_2): ...here. Don't check the vectorization
11521         factor against the number of loop iterations if the loop is
11522         fully-masked.
11523
11524 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11525             Alan Hayward  <alan.hayward@arm.com>
11526             David Sherwood  <david.sherwood@arm.com>
11527
11528         * tree-ssa-loop-ivopts.c (USE_ADDRESS): Split into...
11529         (USE_REF_ADDRESS, USE_PTR_ADDRESS): ...these new use types.
11530         (dump_groups): Update accordingly.
11531         (iv_use::mem_type): New member variable.
11532         (address_p): New function.
11533         (record_use): Add a mem_type argument and initialize the new
11534         mem_type field.
11535         (record_group_use): Add a mem_type argument.  Use address_p.
11536         Remove obsolete null checks of base_object.  Update call to record_use.
11537         (find_interesting_uses_op): Update call to record_group_use.
11538         (find_interesting_uses_cond): Likewise.
11539         (find_interesting_uses_address): Likewise.
11540         (get_mem_type_for_internal_fn): New function.
11541         (find_address_like_use): Likewise.
11542         (find_interesting_uses_stmt): Try find_address_like_use before
11543         calling find_interesting_uses_op.
11544         (addr_offset_valid_p): Use the iv mem_type field as the type
11545         of the addressed memory.
11546         (add_autoinc_candidates): Likewise.
11547         (get_address_cost): Likewise.
11548         (split_small_address_groups_p): Use address_p.
11549         (split_address_groups): Likewise.
11550         (add_iv_candidate_for_use): Likewise.
11551         (autoinc_possible_for_pair): Likewise.
11552         (rewrite_groups): Likewise.
11553         (get_use_type): Check for USE_REF_ADDRESS instead of USE_ADDRESS.
11554         (determine_group_iv_cost): Update after split of USE_ADDRESS.
11555         (get_alias_ptr_type_for_ptr_address): New function.
11556         (rewrite_use_address): Rewrite address uses in calls that were
11557         identified by find_address_like_use.
11558
11559 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11560             Alan Hayward  <alan.hayward@arm.com>
11561             David Sherwood  <david.sherwood@arm.com>
11562
11563         * expr.c (expand_expr_addr_expr_1): Handle ADDR_EXPRs of
11564         TARGET_MEM_REFs.
11565         * gimple-expr.h (is_gimple_addressable: Likewise.
11566         * gimple-expr.c (is_gimple_address): Likewise.
11567         * internal-fn.c (expand_call_mem_ref): New function.
11568         (expand_mask_load_optab_fn): Use it.
11569         (expand_mask_store_optab_fn): Likewise.
11570
11571 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11572             Alan Hayward  <alan.hayward@arm.com>
11573             David Sherwood  <david.sherwood@arm.com>
11574
11575         * doc/md.texi (cond_add@var{mode}, cond_sub@var{mode})
11576         (cond_and@var{mode}, cond_ior@var{mode}, cond_xor@var{mode})
11577         (cond_smin@var{mode}, cond_smax@var{mode}, cond_umin@var{mode})
11578         (cond_umax@var{mode}): Document.
11579         * optabs.def (cond_add_optab, cond_sub_optab, cond_and_optab)
11580         (cond_ior_optab, cond_xor_optab, cond_smin_optab, cond_smax_optab)
11581         (cond_umin_optab, cond_umax_optab): New optabs.
11582         * internal-fn.def (COND_ADD, COND_SUB, COND_MIN, COND_MAX, COND_AND)
11583         (COND_IOR, COND_XOR): New internal functions.
11584         * internal-fn.h (get_conditional_internal_fn): Declare.
11585         * internal-fn.c (cond_binary_direct): New macro.
11586         (expand_cond_binary_optab_fn): Likewise.
11587         (direct_cond_binary_optab_supported_p): Likewise.
11588         (get_conditional_internal_fn): New function.
11589         * tree-vect-loop.c (vectorizable_reduction): Handle fully-masked loops.
11590         Cope with reduction statements that are vectorized as calls rather
11591         than assignments.
11592         * config/aarch64/aarch64-sve.md (cond_<optab><mode>): New insns.
11593         * config/aarch64/iterators.md (UNSPEC_COND_ADD, UNSPEC_COND_SUB)
11594         (UNSPEC_COND_SMAX, UNSPEC_COND_UMAX, UNSPEC_COND_SMIN)
11595         (UNSPEC_COND_UMIN, UNSPEC_COND_AND, UNSPEC_COND_ORR)
11596         (UNSPEC_COND_EOR): New unspecs.
11597         (optab): Add mappings for them.
11598         (SVE_COND_INT_OP, SVE_COND_FP_OP): New int iterators.
11599         (sve_int_op, sve_fp_op): New int attributes.
11600
11601 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11602             Alan Hayward  <alan.hayward@arm.com>
11603             David Sherwood  <david.sherwood@arm.com>
11604
11605         * optabs.def (while_ult_optab): New optab.
11606         * doc/md.texi (while_ult@var{m}@var{n}): Document.
11607         * internal-fn.def (WHILE_ULT): New internal function.
11608         * internal-fn.h (direct_internal_fn_supported_p): New override
11609         that takes two types as argument.
11610         * internal-fn.c (while_direct): New macro.
11611         (expand_while_optab_fn): New function.
11612         (convert_optab_supported_p): Likewise.
11613         (direct_while_optab_supported_p): New macro.
11614         * wide-int.h (wi::udiv_ceil): New function.
11615         * tree-vectorizer.h (rgroup_masks): New structure.
11616         (vec_loop_masks): New typedef.
11617         (_loop_vec_info): Add masks, mask_compare_type, can_fully_mask_p
11618         and fully_masked_p.
11619         (LOOP_VINFO_CAN_FULLY_MASK_P, LOOP_VINFO_FULLY_MASKED_P)
11620         (LOOP_VINFO_MASKS, LOOP_VINFO_MASK_COMPARE_TYPE): New macros.
11621         (vect_max_vf): New function.
11622         (slpeel_make_loop_iterate_ntimes): Delete.
11623         (vect_set_loop_condition, vect_get_loop_mask_type, vect_gen_while)
11624         (vect_halve_mask_nunits, vect_double_mask_nunits): Declare.
11625         (vect_record_loop_mask, vect_get_loop_mask): Likewise.
11626         * tree-vect-loop-manip.c: Include tree-ssa-loop-niter.h,
11627         internal-fn.h, stor-layout.h and optabs-query.h.
11628         (vect_set_loop_mask): New function.
11629         (add_preheader_seq): Likewise.
11630         (add_header_seq): Likewise.
11631         (interleave_supported_p): Likewise.
11632         (vect_maybe_permute_loop_masks): Likewise.
11633         (vect_set_loop_masks_directly): Likewise.
11634         (vect_set_loop_condition_masked): Likewise.
11635         (vect_set_loop_condition_unmasked): New function, split out from
11636         slpeel_make_loop_iterate_ntimes.
11637         (slpeel_make_loop_iterate_ntimes): Rename to..
11638         (vect_set_loop_condition): ...this.  Use vect_set_loop_condition_masked
11639         for fully-masked loops and vect_set_loop_condition_unmasked otherwise.
11640         (vect_do_peeling): Update call accordingly.
11641         (vect_gen_vector_loop_niters): Use VF as the step for fully-masked
11642         loops.
11643         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
11644         mask_compare_type, can_fully_mask_p and fully_masked_p.
11645         (release_vec_loop_masks): New function.
11646         (_loop_vec_info): Use it to free the loop masks.
11647         (can_produce_all_loop_masks_p): New function.
11648         (vect_get_max_nscalars_per_iter): Likewise.
11649         (vect_verify_full_masking): Likewise.
11650         (vect_analyze_loop_2): Save LOOP_VINFO_CAN_FULLY_MASK_P around
11651         retries, and free the mask rgroups before retrying.  Check loop-wide
11652         reasons for disallowing fully-masked loops.  Make the final decision
11653         about whether use a fully-masked loop or not.
11654         (vect_estimate_min_profitable_iters): Do not assume that peeling
11655         for the number of iterations will be needed for fully-masked loops.
11656         (vectorizable_reduction): Disable fully-masked loops.
11657         (vectorizable_live_operation): Likewise.
11658         (vect_halve_mask_nunits): New function.
11659         (vect_double_mask_nunits): Likewise.
11660         (vect_record_loop_mask): Likewise.
11661         (vect_get_loop_mask): Likewise.
11662         (vect_transform_loop): Handle the case in which the final loop
11663         iteration might handle a partial vector.  Call vect_set_loop_condition
11664         instead of slpeel_make_loop_iterate_ntimes.
11665         * tree-vect-stmts.c: Include tree-ssa-loop-niter.h and gimple-fold.h.
11666         (check_load_store_masking): New function.
11667         (prepare_load_store_mask): Likewise.
11668         (vectorizable_store): Handle fully-masked loops.
11669         (vectorizable_load): Likewise.
11670         (supportable_widening_operation): Use vect_halve_mask_nunits for
11671         booleans.
11672         (supportable_narrowing_operation): Likewise vect_double_mask_nunits.
11673         (vect_gen_while): New function.
11674         * config/aarch64/aarch64.md (umax<mode>3): New expander.
11675         (aarch64_uqdec<mode>): New insn.
11676
11677 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11678             Alan Hayward  <alan.hayward@arm.com>
11679             David Sherwood  <david.sherwood@arm.com>
11680
11681         * optabs.def (reduc_and_scal_optab, reduc_ior_scal_optab)
11682         (reduc_xor_scal_optab): New optabs.
11683         * doc/md.texi (reduc_and_scal_@var{m}, reduc_ior_scal_@var{m})
11684         (reduc_xor_scal_@var{m}): Document.
11685         * doc/sourcebuild.texi (vect_logical_reduc): Likewise.
11686         * internal-fn.def (IFN_REDUC_AND, IFN_REDUC_IOR, IFN_REDUC_XOR): New
11687         internal functions.
11688         * fold-const-call.c (fold_const_call): Handle them.
11689         * tree-vect-loop.c (reduction_fn_for_scalar_code): Return the new
11690         internal functions for BIT_AND_EXPR, BIT_IOR_EXPR and BIT_XOR_EXPR.
11691         * config/aarch64/aarch64-sve.md (reduc_<bit_reduc>_scal_<mode>):
11692         (*reduc_<bit_reduc>_scal_<mode>): New patterns.
11693         * config/aarch64/iterators.md (UNSPEC_ANDV, UNSPEC_ORV)
11694         (UNSPEC_XORV): New unspecs.
11695         (optab): Add entries for them.
11696         (BITWISEV): New int iterator.
11697         (bit_reduc_op): New int attributes.
11698
11699 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11700             Alan Hayward  <alan.hayward@arm.com>
11701             David Sherwood  <david.sherwood@arm.com>
11702
11703         * doc/md.texi (vec_shl_insert_@var{m}): New optab.
11704         * internal-fn.def (VEC_SHL_INSERT): New internal function.
11705         * optabs.def (vec_shl_insert_optab): New optab.
11706         * tree-vectorizer.h (can_duplicate_and_interleave_p): Declare.
11707         (duplicate_and_interleave): Likewise.
11708         * tree-vect-loop.c: Include internal-fn.h.
11709         (neutral_op_for_slp_reduction): New function, split out from
11710         get_initial_defs_for_reduction.
11711         (get_initial_def_for_reduction): Handle option 2 for variable-length
11712         vectors by loading the neutral value into a vector and then shifting
11713         the initial value into element 0.
11714         (get_initial_defs_for_reduction): Replace the code argument with
11715         the neutral value calculated by neutral_op_for_slp_reduction.
11716         Use gimple_build_vector for constant-length vectors.
11717         Use IFN_VEC_SHL_INSERT for variable-length vectors if all
11718         but the first group_size elements have a neutral value.
11719         Use duplicate_and_interleave otherwise.
11720         (vect_create_epilog_for_reduction): Take a neutral_op parameter.
11721         Update call to get_initial_defs_for_reduction.  Handle SLP
11722         reductions for variable-length vectors by creating one vector
11723         result for each scalar result, with the elements associated
11724         with other scalar results stubbed out with the neutral value.
11725         (vectorizable_reduction): Call neutral_op_for_slp_reduction.
11726         Require IFN_VEC_SHL_INSERT for double reductions on
11727         variable-length vectors, or SLP reductions that have
11728         a neutral value.  Require can_duplicate_and_interleave_p
11729         support for variable-length unchained SLP reductions if there
11730         is no neutral value, such as for MIN/MAX reductions.  Also require
11731         the number of vector elements to be a multiple of the number of
11732         SLP statements when doing variable-length unchained SLP reductions.
11733         Update call to vect_create_epilog_for_reduction.
11734         * tree-vect-slp.c (can_duplicate_and_interleave_p): Make public
11735         and remove initial values.
11736         (duplicate_and_interleave): Make public.
11737         * config/aarch64/aarch64.md (UNSPEC_INSR): New unspec.
11738         * config/aarch64/aarch64-sve.md (vec_shl_insert_<mode>): New insn.
11739
11740 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11741             Alan Hayward  <alan.hayward@arm.com>
11742             David Sherwood  <david.sherwood@arm.com>
11743
11744         * tree-vect-slp.c: Include gimple-fold.h and internal-fn.h
11745         (can_duplicate_and_interleave_p): New function.
11746         (vect_get_and_check_slp_defs): Take the vector of statements
11747         rather than just the current one.  Remove excess parentheses.
11748         Restriction rejectinon of vect_constant_def and vect_external_def
11749         for variable-length vectors to boolean types, or types for which
11750         can_duplicate_and_interleave_p is false.
11751         (vect_build_slp_tree_2): Update call to vect_get_and_check_slp_defs.
11752         (duplicate_and_interleave): New function.
11753         (vect_get_constant_vectors): Use gimple_build_vector for
11754         constant-length vectors and suitable variable-length constant
11755         vectors.  Use duplicate_and_interleave for other variable-length
11756         vectors.  Don't defer the update when inserting new statements.
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-loop.c (vect_estimate_min_profitable_iters): Make sure
11763         min_profitable_iters doesn't go negative.
11764
11765 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11766             Alan Hayward  <alan.hayward@arm.com>
11767             David Sherwood  <david.sherwood@arm.com>
11768
11769         * doc/md.texi (vec_mask_load_lanes@var{m}@var{n}): Document.
11770         (vec_mask_store_lanes@var{m}@var{n}): Likewise.
11771         * optabs.def (vec_mask_load_lanes_optab): New optab.
11772         (vec_mask_store_lanes_optab): Likewise.
11773         * internal-fn.def (MASK_LOAD_LANES): New internal function.
11774         (MASK_STORE_LANES): Likewise.
11775         * internal-fn.c (mask_load_lanes_direct): New macro.
11776         (mask_store_lanes_direct): Likewise.
11777         (expand_mask_load_optab_fn): Handle masked operations.
11778         (expand_mask_load_lanes_optab_fn): New macro.
11779         (expand_mask_store_optab_fn): Handle masked operations.
11780         (expand_mask_store_lanes_optab_fn): New macro.
11781         (direct_mask_load_lanes_optab_supported_p): Likewise.
11782         (direct_mask_store_lanes_optab_supported_p): Likewise.
11783         * tree-vectorizer.h (vect_store_lanes_supported): Take a masked_p
11784         parameter.
11785         (vect_load_lanes_supported): Likewise.
11786         * tree-vect-data-refs.c (strip_conversion): New function.
11787         (can_group_stmts_p): Likewise.
11788         (vect_analyze_data_ref_accesses): Use it instead of checking
11789         for a pair of assignments.
11790         (vect_store_lanes_supported): Take a masked_p parameter.
11791         (vect_load_lanes_supported): Likewise.
11792         * tree-vect-loop.c (vect_analyze_loop_2): Update calls to
11793         vect_store_lanes_supported and vect_load_lanes_supported.
11794         * tree-vect-slp.c (vect_analyze_slp_instance): Likewise.
11795         * tree-vect-stmts.c (get_group_load_store_type): Take a masked_p
11796         parameter.  Don't allow gaps for masked accesses.
11797         Use vect_get_store_rhs.  Update calls to vect_store_lanes_supported
11798         and vect_load_lanes_supported.
11799         (get_load_store_type): Take a masked_p parameter and update
11800         call to get_group_load_store_type.
11801         (vectorizable_store): Update call to get_load_store_type.
11802         Handle IFN_MASK_STORE_LANES.
11803         (vectorizable_load): Update call to get_load_store_type.
11804         Handle IFN_MASK_LOAD_LANES.
11805
11806 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11807             Alan Hayward  <alan.hayward@arm.com>
11808             David Sherwood  <david.sherwood@arm.com>
11809
11810         * config/aarch64/aarch64-modes.def: Define x2, x3 and x4 vector
11811         modes for SVE.
11812         * config/aarch64/aarch64-protos.h
11813         (aarch64_sve_struct_memory_operand_p): Declare.
11814         * config/aarch64/iterators.md (SVE_STRUCT): New mode iterator.
11815         (vector_count, insn_length, VSINGLE, vsingle): New mode attributes.
11816         (VPRED, vpred): Handle SVE structure modes.
11817         * config/aarch64/constraints.md (Utx): New constraint.
11818         * config/aarch64/predicates.md (aarch64_sve_struct_memory_operand)
11819         (aarch64_sve_struct_nonimmediate_operand): New predicates.
11820         * config/aarch64/aarch64.md (UNSPEC_LDN, UNSPEC_STN): New unspecs.
11821         * config/aarch64/aarch64-sve.md (mov<mode>, *aarch64_sve_mov<mode>_le)
11822         (*aarch64_sve_mov<mode>_be, pred_mov<mode>): New patterns for
11823         structure modes.  Split into pieces after RA.
11824         (vec_load_lanes<mode><vsingle>, vec_mask_load_lanes<mode><vsingle>)
11825         (vec_store_lanes<mode><vsingle>, vec_mask_store_lanes<mode><vsingle>):
11826         New patterns.
11827         * config/aarch64/aarch64.c (aarch64_classify_vector_mode): Handle
11828         SVE structure modes.
11829         (aarch64_classify_address): Likewise.
11830         (sizetochar): Move earlier in file.
11831         (aarch64_print_operand): Handle SVE register lists.
11832         (aarch64_array_mode): New function.
11833         (aarch64_sve_struct_memory_operand_p): Likewise.
11834         (TARGET_ARRAY_MODE): Redefine.
11835
11836 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11837             Alan Hayward  <alan.hayward@arm.com>
11838             David Sherwood  <david.sherwood@arm.com>
11839
11840         * target.def (array_mode): New target hook.
11841         * doc/tm.texi.in (TARGET_ARRAY_MODE): New hook.
11842         * doc/tm.texi: Regenerate.
11843         * hooks.h (hook_optmode_mode_uhwi_none): Declare.
11844         * hooks.c (hook_optmode_mode_uhwi_none): New function.
11845         * tree-vect-data-refs.c (vect_lanes_optab_supported_p): Use
11846         targetm.array_mode.
11847         * stor-layout.c (mode_for_array): Likewise.  Support polynomial
11848         type sizes.
11849
11850 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11851             Alan Hayward  <alan.hayward@arm.com>
11852             David Sherwood  <david.sherwood@arm.com>
11853
11854         * fold-const.c (fold_binary_loc): Check the argument types
11855         rather than the result type when testing for a vector operation.
11856
11857 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11858
11859         * doc/tm.texi.in (DWARF_LAZY_REGISTER_VALUE): Document.
11860         * doc/tm.texi: Regenerate.
11861
11862 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
11863             Alan Hayward  <alan.hayward@arm.com>
11864             David Sherwood  <david.sherwood@arm.com>
11865
11866         * doc/invoke.texi (-msve-vector-bits=): Document new option.
11867         (sve): Document new AArch64 extension.
11868         * doc/md.texi (w): Extend the description of the AArch64
11869         constraint to include SVE vectors.
11870         (Upl, Upa): Document new AArch64 predicate constraints.
11871         * config/aarch64/aarch64-opts.h (aarch64_sve_vector_bits_enum): New
11872         enum.
11873         * config/aarch64/aarch64.opt (sve_vector_bits): New enum.
11874         (msve-vector-bits=): New option.
11875         * config/aarch64/aarch64-option-extensions.def (fp, simd): Disable
11876         SVE when these are disabled.
11877         (sve): New extension.
11878         * config/aarch64/aarch64-modes.def: Define SVE vector and predicate
11879         modes.  Adjust their number of units based on aarch64_sve_vg.
11880         (MAX_BITSIZE_MODE_ANY_MODE): Define.
11881         * config/aarch64/aarch64-protos.h (ADDR_QUERY_ANY): New
11882         aarch64_addr_query_type.
11883         (aarch64_const_vec_all_same_in_range_p, aarch64_sve_pred_mode)
11884         (aarch64_sve_cnt_immediate_p, aarch64_sve_addvl_addpl_immediate_p)
11885         (aarch64_sve_inc_dec_immediate_p, aarch64_add_offset_temporaries)
11886         (aarch64_split_add_offset, aarch64_output_sve_cnt_immediate)
11887         (aarch64_output_sve_addvl_addpl, aarch64_output_sve_inc_dec_immediate)
11888         (aarch64_output_sve_mov_immediate, aarch64_output_ptrue): Declare.
11889         (aarch64_simd_imm_zero_p): Delete.
11890         (aarch64_check_zero_based_sve_index_immediate): Declare.
11891         (aarch64_sve_index_immediate_p, aarch64_sve_arith_immediate_p)
11892         (aarch64_sve_bitmask_immediate_p, aarch64_sve_dup_immediate_p)
11893         (aarch64_sve_cmp_immediate_p, aarch64_sve_float_arith_immediate_p)
11894         (aarch64_sve_float_mul_immediate_p): Likewise.
11895         (aarch64_classify_symbol): Take the offset as a HOST_WIDE_INT
11896         rather than an rtx.
11897         (aarch64_sve_ld1r_operand_p, aarch64_sve_ldr_operand_p): Declare.
11898         (aarch64_expand_mov_immediate): Take a gen_vec_duplicate callback.
11899         (aarch64_emit_sve_pred_move, aarch64_expand_sve_mem_move): Declare.
11900         (aarch64_expand_sve_vec_cmp_int, aarch64_expand_sve_vec_cmp_float)
11901         (aarch64_expand_sve_vcond, aarch64_expand_sve_vec_perm): Declare.
11902         (aarch64_regmode_natural_size): Likewise.
11903         * config/aarch64/aarch64.h (AARCH64_FL_SVE): New macro.
11904         (AARCH64_FL_V8_3, AARCH64_FL_RCPC, AARCH64_FL_DOTPROD): Shift
11905         left one place.
11906         (AARCH64_ISA_SVE, TARGET_SVE): New macros.
11907         (FIXED_REGISTERS, CALL_USED_REGISTERS, REGISTER_NAMES): Add entries
11908         for VG and the SVE predicate registers.
11909         (V_ALIASES): Add a "z"-prefixed alias.
11910         (FIRST_PSEUDO_REGISTER): Change to P15_REGNUM + 1.
11911         (AARCH64_DWARF_VG, AARCH64_DWARF_P0): New macros.
11912         (PR_REGNUM_P, PR_LO_REGNUM_P): Likewise.
11913         (PR_LO_REGS, PR_HI_REGS, PR_REGS): New reg_classes.
11914         (REG_CLASS_NAMES): Add entries for them.
11915         (REG_CLASS_CONTENTS): Likewise.  Update ALL_REGS to include VG
11916         and the predicate registers.
11917         (aarch64_sve_vg): Declare.
11918         (BITS_PER_SVE_VECTOR, BYTES_PER_SVE_VECTOR, BYTES_PER_SVE_PRED)
11919         (SVE_BYTE_MODE, MAX_COMPILE_TIME_VEC_BYTES): New macros.
11920         (REGMODE_NATURAL_SIZE): Define.
11921         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Handle
11922         SVE macros.
11923         * config/aarch64/aarch64.c: Include cfgrtl.h.
11924         (simd_immediate_info): Add a constructor for series vectors,
11925         and an associated step field.
11926         (aarch64_sve_vg): New variable.
11927         (aarch64_dbx_register_number): Handle VG and the predicate registers.
11928         (aarch64_vect_struct_mode_p, aarch64_vector_mode_p): Delete.
11929         (VEC_ADVSIMD, VEC_SVE_DATA, VEC_SVE_PRED, VEC_STRUCT, VEC_ANY_SVE)
11930         (VEC_ANY_DATA, VEC_STRUCT): New constants.
11931         (aarch64_advsimd_struct_mode_p, aarch64_sve_pred_mode_p)
11932         (aarch64_classify_vector_mode, aarch64_vector_data_mode_p)
11933         (aarch64_sve_data_mode_p, aarch64_sve_pred_mode)
11934         (aarch64_get_mask_mode): New functions.
11935         (aarch64_hard_regno_nregs): Handle SVE data modes for FP_REGS
11936         and FP_LO_REGS.  Handle PR_REGS, PR_LO_REGS and PR_HI_REGS.
11937         (aarch64_hard_regno_mode_ok): Handle VG.  Also handle the SVE
11938         predicate modes and predicate registers.  Explicitly restrict
11939         GPRs to modes of 16 bytes or smaller.  Only allow FP registers
11940         to store a vector mode if it is recognized by
11941         aarch64_classify_vector_mode.
11942         (aarch64_regmode_natural_size): New function.
11943         (aarch64_hard_regno_caller_save_mode): Return the original mode
11944         for predicates.
11945         (aarch64_sve_cnt_immediate_p, aarch64_output_sve_cnt_immediate)
11946         (aarch64_sve_addvl_addpl_immediate_p, aarch64_output_sve_addvl_addpl)
11947         (aarch64_sve_inc_dec_immediate_p, aarch64_output_sve_inc_dec_immediate)
11948         (aarch64_add_offset_1_temporaries, aarch64_offset_temporaries): New
11949         functions.
11950         (aarch64_add_offset): Add a temp2 parameter.  Assert that temp1
11951         does not overlap dest if the function is frame-related.  Handle
11952         SVE constants.
11953         (aarch64_split_add_offset): New function.
11954         (aarch64_add_sp, aarch64_sub_sp): Add temp2 parameters and pass
11955         them aarch64_add_offset.
11956         (aarch64_allocate_and_probe_stack_space): Add a temp2 parameter
11957         and update call to aarch64_sub_sp.
11958         (aarch64_add_cfa_expression): New function.
11959         (aarch64_expand_prologue): Pass extra temporary registers to the
11960         functions above.  Handle the case in which we need to emit new
11961         DW_CFA_expressions for registers that were originally saved
11962         relative to the stack pointer, but now have to be expressed
11963         relative to the frame pointer.
11964         (aarch64_output_mi_thunk): Pass extra temporary registers to the
11965         functions above.
11966         (aarch64_expand_epilogue): Likewise.  Prevent inheritance of
11967         IP0 and IP1 values for SVE frames.
11968         (aarch64_expand_vec_series): New function.
11969         (aarch64_expand_sve_widened_duplicate): Likewise.
11970         (aarch64_expand_sve_const_vector): Likewise.
11971         (aarch64_expand_mov_immediate): Add a gen_vec_duplicate parameter.
11972         Handle SVE constants.  Use emit_move_insn to move a force_const_mem
11973         into the register, rather than emitting a SET directly.
11974         (aarch64_emit_sve_pred_move, aarch64_expand_sve_mem_move)
11975         (aarch64_get_reg_raw_mode, offset_4bit_signed_scaled_p)
11976         (offset_6bit_unsigned_scaled_p, aarch64_offset_7bit_signed_scaled_p)
11977         (offset_9bit_signed_scaled_p): New functions.
11978         (aarch64_replicate_bitmask_imm): New function.
11979         (aarch64_bitmask_imm): Use it.
11980         (aarch64_cannot_force_const_mem): Reject expressions involving
11981         a CONST_POLY_INT.  Update call to aarch64_classify_symbol.
11982         (aarch64_classify_index): Handle SVE indices, by requiring
11983         a plain register index with a scale that matches the element size.
11984         (aarch64_classify_address): Handle SVE addresses.  Assert that
11985         the mode of the address is VOIDmode or an integer mode.
11986         Update call to aarch64_classify_symbol.
11987         (aarch64_classify_symbolic_expression): Update call to
11988         aarch64_classify_symbol.
11989         (aarch64_const_vec_all_in_range_p): New function.
11990         (aarch64_print_vector_float_operand): Likewise.
11991         (aarch64_print_operand): Handle 'N' and 'C'.  Use "zN" rather than
11992         "vN" for FP registers with SVE modes.  Handle (const ...) vectors
11993         and the FP immediates 1.0 and 0.5.
11994         (aarch64_print_address_internal): Handle SVE addresses.
11995         (aarch64_print_operand_address): Use ADDR_QUERY_ANY.
11996         (aarch64_regno_regclass): Handle predicate registers.
11997         (aarch64_secondary_reload): Handle big-endian reloads of SVE
11998         data modes.
11999         (aarch64_class_max_nregs): Handle SVE modes and predicate registers.
12000         (aarch64_rtx_costs): Check for ADDVL and ADDPL instructions.
12001         (aarch64_convert_sve_vector_bits): New function.
12002         (aarch64_override_options): Use it to handle -msve-vector-bits=.
12003         (aarch64_classify_symbol): Take the offset as a HOST_WIDE_INT
12004         rather than an rtx.
12005         (aarch64_legitimate_constant_p): Use aarch64_classify_vector_mode.
12006         Handle SVE vector and predicate modes.  Accept VL-based constants
12007         that need only one temporary register, and VL offsets that require
12008         no temporary registers.
12009         (aarch64_conditional_register_usage): Mark the predicate registers
12010         as fixed if SVE isn't available.
12011         (aarch64_vector_mode_supported_p): Use aarch64_classify_vector_mode.
12012         Return true for SVE vector and predicate modes.
12013         (aarch64_simd_container_mode): Take the number of bits as a poly_int64
12014         rather than an unsigned int.  Handle SVE modes.
12015         (aarch64_preferred_simd_mode): Update call accordingly.  Handle
12016         SVE modes.
12017         (aarch64_autovectorize_vector_sizes): Add BYTES_PER_SVE_VECTOR
12018         if SVE is enabled.
12019         (aarch64_sve_index_immediate_p, aarch64_sve_arith_immediate_p)
12020         (aarch64_sve_bitmask_immediate_p, aarch64_sve_dup_immediate_p)
12021         (aarch64_sve_cmp_immediate_p, aarch64_sve_float_arith_immediate_p)
12022         (aarch64_sve_float_mul_immediate_p): New functions.
12023         (aarch64_sve_valid_immediate): New function.
12024         (aarch64_simd_valid_immediate): Use it as the fallback for SVE vectors.
12025         Explicitly reject structure modes.  Check for INDEX constants.
12026         Handle PTRUE and PFALSE constants.
12027         (aarch64_check_zero_based_sve_index_immediate): New function.
12028         (aarch64_simd_imm_zero_p): Delete.
12029         (aarch64_mov_operand_p): Use aarch64_simd_valid_immediate for
12030         vector modes.  Accept constants in the range of CNT[BHWD].
12031         (aarch64_simd_scalar_immediate_valid_for_move): Explicitly
12032         ask for an Advanced SIMD mode.
12033         (aarch64_sve_ld1r_operand_p, aarch64_sve_ldr_operand_p): New functions.
12034         (aarch64_simd_vector_alignment): Handle SVE predicates.
12035         (aarch64_vectorize_preferred_vector_alignment): New function.
12036         (aarch64_simd_vector_alignment_reachable): Use it instead of
12037         the vector size.
12038         (aarch64_shift_truncation_mask): Use aarch64_vector_data_mode_p.
12039         (aarch64_output_sve_mov_immediate, aarch64_output_ptrue): New
12040         functions.
12041         (MAX_VECT_LEN): Delete.
12042         (expand_vec_perm_d): Add a vec_flags field.
12043         (emit_unspec2, aarch64_expand_sve_vec_perm): New functions.
12044         (aarch64_evpc_trn, aarch64_evpc_uzp, aarch64_evpc_zip)
12045         (aarch64_evpc_ext): Don't apply a big-endian lane correction
12046         for SVE modes.
12047         (aarch64_evpc_rev): Rename to...
12048         (aarch64_evpc_rev_local): ...this.  Use a predicated operation for SVE.
12049         (aarch64_evpc_rev_global): New function.
12050         (aarch64_evpc_dup): Enforce a 64-byte range for SVE DUP.
12051         (aarch64_evpc_tbl): Use MAX_COMPILE_TIME_VEC_BYTES instead of
12052         MAX_VECT_LEN.
12053         (aarch64_evpc_sve_tbl): New function.
12054         (aarch64_expand_vec_perm_const_1): Update after rename of
12055         aarch64_evpc_rev.  Handle SVE permutes too, trying
12056         aarch64_evpc_rev_global and using aarch64_evpc_sve_tbl rather
12057         than aarch64_evpc_tbl.
12058         (aarch64_vectorize_vec_perm_const): Initialize vec_flags.
12059         (aarch64_sve_cmp_operand_p, aarch64_unspec_cond_code)
12060         (aarch64_gen_unspec_cond, aarch64_expand_sve_vec_cmp_int)
12061         (aarch64_emit_unspec_cond, aarch64_emit_unspec_cond_or)
12062         (aarch64_emit_inverted_unspec_cond, aarch64_expand_sve_vec_cmp_float)
12063         (aarch64_expand_sve_vcond): New functions.
12064         (aarch64_modes_tieable_p): Use aarch64_vector_data_mode_p instead
12065         of aarch64_vector_mode_p.
12066         (aarch64_dwarf_poly_indeterminate_value): New function.
12067         (aarch64_compute_pressure_classes): Likewise.
12068         (aarch64_can_change_mode_class): Likewise.
12069         (TARGET_GET_RAW_RESULT_MODE, TARGET_GET_RAW_ARG_MODE): Redefine.
12070         (TARGET_VECTORIZE_PREFERRED_VECTOR_ALIGNMENT): Likewise.
12071         (TARGET_VECTORIZE_GET_MASK_MODE): Likewise.
12072         (TARGET_DWARF_POLY_INDETERMINATE_VALUE): Likewise.
12073         (TARGET_COMPUTE_PRESSURE_CLASSES): Likewise.
12074         (TARGET_CAN_CHANGE_MODE_CLASS): Likewise.
12075         * config/aarch64/constraints.md (Upa, Upl, Uav, Uat, Usv, Usi, Utr)
12076         (Uty, Dm, vsa, vsc, vsd, vsi, vsn, vsl, vsm, vsA, vsM, vsN): New
12077         constraints.
12078         (Dn, Dl, Dr): Accept const as well as const_vector.
12079         (Dz): Likewise.  Compare against CONST0_RTX.
12080         * config/aarch64/iterators.md: Refer to "Advanced SIMD" instead
12081         of "vector" where appropriate.
12082         (SVE_ALL, SVE_BH, SVE_BHS, SVE_BHSI, SVE_HSDI, SVE_HSF, SVE_SD)
12083         (SVE_SDI, SVE_I, SVE_F, PRED_ALL, PRED_BHS): New mode iterators.
12084         (UNSPEC_SEL, UNSPEC_ANDF, UNSPEC_IORF, UNSPEC_XORF, UNSPEC_COND_LT)
12085         (UNSPEC_COND_LE, UNSPEC_COND_EQ, UNSPEC_COND_NE, UNSPEC_COND_GE)
12086         (UNSPEC_COND_GT, UNSPEC_COND_LO, UNSPEC_COND_LS, UNSPEC_COND_HS)
12087         (UNSPEC_COND_HI, UNSPEC_COND_UO): New unspecs.
12088         (Vetype, VEL, Vel, VWIDE, Vwide, vw, vwcore, V_INT_EQUIV)
12089         (v_int_equiv): Extend to SVE modes.
12090         (Vesize, V128, v128, Vewtype, V_FP_EQUIV, v_fp_equiv, VPRED): New
12091         mode attributes.
12092         (LOGICAL_OR, SVE_INT_UNARY, SVE_FP_UNARY): New code iterators.
12093         (optab): Handle popcount, smin, smax, umin, umax, abs and sqrt.
12094         (logical_nn, lr, sve_int_op, sve_fp_op): New code attributs.
12095         (LOGICALF, OPTAB_PERMUTE, UNPACK, UNPACK_UNSIGNED, SVE_COND_INT_CMP)
12096         (SVE_COND_FP_CMP): New int iterators.
12097         (perm_hilo): Handle the new unpack unspecs.
12098         (optab, logicalf_op, su, perm_optab, cmp_op, imm_con): New int
12099         attributes.
12100         * config/aarch64/predicates.md (aarch64_sve_cnt_immediate)
12101         (aarch64_sve_addvl_addpl_immediate, aarch64_split_add_offset_immediate)
12102         (aarch64_pluslong_or_poly_operand, aarch64_nonmemory_operand)
12103         (aarch64_equality_operator, aarch64_constant_vector_operand)
12104         (aarch64_sve_ld1r_operand, aarch64_sve_ldr_operand): New predicates.
12105         (aarch64_sve_nonimmediate_operand): Likewise.
12106         (aarch64_sve_general_operand): Likewise.
12107         (aarch64_sve_dup_operand, aarch64_sve_arith_immediate): Likewise.
12108         (aarch64_sve_sub_arith_immediate, aarch64_sve_inc_dec_immediate)
12109         (aarch64_sve_logical_immediate, aarch64_sve_mul_immediate): Likewise.
12110         (aarch64_sve_dup_immediate, aarch64_sve_cmp_vsc_immediate): Likewise.
12111         (aarch64_sve_cmp_vsd_immediate, aarch64_sve_index_immediate): Likewise.
12112         (aarch64_sve_float_arith_immediate): Likewise.
12113         (aarch64_sve_float_arith_with_sub_immediate): Likewise.
12114         (aarch64_sve_float_mul_immediate, aarch64_sve_arith_operand): Likewise.
12115         (aarch64_sve_add_operand, aarch64_sve_logical_operand): Likewise.
12116         (aarch64_sve_lshift_operand, aarch64_sve_rshift_operand): Likewise.
12117         (aarch64_sve_mul_operand, aarch64_sve_cmp_vsc_operand): Likewise.
12118         (aarch64_sve_cmp_vsd_operand, aarch64_sve_index_operand): Likewise.
12119         (aarch64_sve_float_arith_operand): Likewise.
12120         (aarch64_sve_float_arith_with_sub_operand): Likewise.
12121         (aarch64_sve_float_mul_operand): Likewise.
12122         (aarch64_sve_vec_perm_operand): Likewise.
12123         (aarch64_pluslong_operand): Include aarch64_sve_addvl_addpl_immediate.
12124         (aarch64_mov_operand): Accept const_poly_int and const_vector.
12125         (aarch64_simd_lshift_imm, aarch64_simd_rshift_imm): Accept const
12126         as well as const_vector.
12127         (aarch64_simd_imm_zero, aarch64_simd_imm_minus_one): Move earlier
12128         in file.  Use CONST0_RTX and CONSTM1_RTX.
12129         (aarch64_simd_or_scalar_imm_zero): Likewise.  Add match_codes.
12130         (aarch64_simd_reg_or_zero): Accept const as well as const_vector.
12131         Use aarch64_simd_imm_zero.
12132         * config/aarch64/aarch64-sve.md: New file.
12133         * config/aarch64/aarch64.md: Include it.
12134         (VG_REGNUM, P0_REGNUM, P7_REGNUM, P15_REGNUM): New register numbers.
12135         (UNSPEC_REV, UNSPEC_LD1_SVE, UNSPEC_ST1_SVE, UNSPEC_MERGE_PTRUE)
12136         (UNSPEC_PTEST_PTRUE, UNSPEC_UNPACKSHI, UNSPEC_UNPACKUHI)
12137         (UNSPEC_UNPACKSLO, UNSPEC_UNPACKULO, UNSPEC_PACK)
12138         (UNSPEC_FLOAT_CONVERT, UNSPEC_WHILE_LO): New unspec constants.
12139         (sve): New attribute.
12140         (enabled): Disable instructions with the sve attribute unless
12141         TARGET_SVE.
12142         (movqi, movhi): Pass CONST_POLY_INT operaneds through
12143         aarch64_expand_mov_immediate.
12144         (*mov<mode>_aarch64, *movsi_aarch64, *movdi_aarch64): Handle
12145         CNT[BHSD] immediates.
12146         (movti): Split CONST_POLY_INT moves into two halves.
12147         (add<mode>3): Accept aarch64_pluslong_or_poly_operand.
12148         Split additions that need a temporary here if the destination
12149         is the stack pointer.
12150         (*add<mode>3_aarch64): Handle ADDVL and ADDPL immediates.
12151         (*add<mode>3_poly_1): New instruction.
12152         (set_clobber_cc): New expander.
12153
12154 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
12155
12156         * simplify-rtx.c (simplify_immed_subreg): Add an inner_bytes
12157         parameter and use it instead of GET_MODE_SIZE (innermode).  Use
12158         inner_bytes * BITS_PER_UNIT instead of GET_MODE_BITSIZE (innermode).
12159         Use CEIL (inner_bytes, GET_MODE_UNIT_SIZE (innermode)) instead of
12160         GET_MODE_NUNITS (innermode).  Also add a first_elem parameter.
12161         Change innermode from fixed_mode_size to machine_mode.
12162         (simplify_subreg): Update call accordingly.  Handle a constant-sized
12163         subreg of a variable-length CONST_VECTOR.
12164
12165 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
12166             Alan Hayward  <alan.hayward@arm.com>
12167             David Sherwood  <david.sherwood@arm.com>
12168
12169         * tree-ssa-address.c (mem_ref_valid_without_offset_p): New function.
12170         (add_offset_to_base): New function, split out from...
12171         (create_mem_ref): ...here.  When handling a scale other than 1,
12172         check first whether the address is valid without the offset.
12173         Add it into the base if so, leaving the index and scale as-is.
12174
12175 2018-01-12  Jakub Jelinek  <jakub@redhat.com>
12176
12177         PR c++/83778
12178         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Call
12179         fold_for_warn before checking if arg2 is INTEGER_CST.
12180
12181 2018-01-12  Segher Boessenkool  <segher@kernel.crashing.org>
12182
12183         * config/rs6000/predicates.md (load_multiple_operation): Delete.
12184         (store_multiple_operation): Delete.
12185         * config/rs6000/rs6000-cpus.def (601): Remove MASK_STRING.
12186         * config/rs6000/rs6000-protos.h (rs6000_output_load_multiple): Delete.
12187         * config/rs6000/rs6000-string.c (expand_block_move): Delete everything
12188         guarded by TARGET_STRING.
12189         (rs6000_output_load_multiple): Delete.
12190         * config/rs6000/rs6000.c (rs6000_option_override_internal): Delete
12191         OPTION_MASK_STRING / TARGET_STRING handling.
12192         (print_operand) <'N', 'O'>: Add comment that these are unused now.
12193         (const rs6000_opt_masks) <"string">: Change mask to 0.
12194         * config/rs6000/rs6000.h (TARGET_DEFAULT): Remove MASK_STRING.
12195         (MASK_STRING): Delete.
12196         * config/rs6000/rs6000.md (*mov<mode>_string): Delete TARGET_STRING
12197         parts.  Simplify.
12198         (load_multiple): Delete.
12199         (*ldmsi8): Delete.
12200         (*ldmsi7): Delete.
12201         (*ldmsi6): Delete.
12202         (*ldmsi5): Delete.
12203         (*ldmsi4): Delete.
12204         (*ldmsi3): Delete.
12205         (store_multiple): Delete.
12206         (*stmsi8): Delete.
12207         (*stmsi7): Delete.
12208         (*stmsi6): Delete.
12209         (*stmsi5): Delete.
12210         (*stmsi4): Delete.
12211         (*stmsi3): Delete.
12212         (movmemsi_8reg): Delete.
12213         (corresponding unnamed define_insn): Delete.
12214         (movmemsi_6reg): Delete.
12215         (corresponding unnamed define_insn): Delete.
12216         (movmemsi_4reg): Delete.
12217         (corresponding unnamed define_insn): Delete.
12218         (movmemsi_2reg): Delete.
12219         (corresponding unnamed define_insn): Delete.
12220         (movmemsi_1reg): Delete.
12221         (corresponding unnamed define_insn): Delete.
12222         * config/rs6000/rs6000.opt (mno-string): New.
12223         (mstring): Replace by deprecation warning stub.
12224         * doc/invoke.texi (RS/6000 and PowerPC Options): Delete -mstring.
12225
12226 2018-01-12  Jakub Jelinek  <jakub@redhat.com>
12227
12228         * regrename.c (regrename_do_replace): If replacing the same
12229         reg multiple times, try to reuse last created gen_raw_REG.
12230
12231         PR debug/81155
12232         * bb-reorder.c (pass_partition_blocks::gate): In lto don't partition
12233         main to workaround a bug in GDB.
12234
12235 2018-01-12  Tom de Vries  <tom@codesourcery.com>
12236
12237         PR target/83737
12238         * config.gcc (nvptx*-*-*): Set use_gcc_stdint=wrap.
12239
12240 2018-01-12  Vladimir Makarov  <vmakarov@redhat.com>
12241
12242         PR rtl-optimization/80481
12243         * ira-color.c (get_cap_member): New function.
12244         (allocnos_conflict_by_live_ranges_p): Use it.
12245         (slot_coalesced_allocno_live_ranges_intersect_p): Add assert.
12246         (setup_slot_coalesced_allocno_live_ranges): Ditto.
12247
12248 2018-01-12  Uros Bizjak  <ubizjak@gmail.com>
12249
12250         PR target/83628
12251         * config/alpha/alpha.md (*saddsi_1): New insn_ans_split pattern.
12252         (*saddl_se_1): Ditto.
12253         (*ssubsi_1): Ditto.
12254         (*ssubl_se_1): Ditto.
12255
12256 2018-01-12  Richard Sandiford  <richard.sandiford@linaro.org>
12257
12258         * tree-predcom.c (aff_combination_dr_offset): Use wi::to_poly_widest
12259         rather than wi::to_widest for DR_INITs.
12260         * tree-vect-data-refs.c (vect_find_same_alignment_drs): Use
12261         wi::to_poly_offset rather than wi::to_offset for DR_INIT.
12262         (vect_analyze_data_ref_accesses): Require both DR_INITs to be
12263         INTEGER_CSTs.
12264         (vect_analyze_group_access_1): Note that here.
12265
12266 2018-01-12  Richard Sandiford  <richard.sandiford@linaro.org>
12267
12268         * tree-vectorizer.c (get_vec_alignment_for_array_type): Handle
12269         polynomial type sizes.
12270
12271 2018-01-12  Richard Sandiford  <richard.sandiford@linaro.org>
12272
12273         * gimplify.c (gimple_add_tmp_var_fn): Allow variables to have a
12274         poly_uint64 size, rather than requiring an unsigned HOST_WIDE_INT size.
12275         (gimple_add_tmp_var): Likewise.
12276
12277 2018-01-12  Martin Liska  <mliska@suse.cz>
12278
12279         * gimple.c (gimple_alloc_counts): Use uint64_t instead of int.
12280         (gimple_alloc_sizes): Likewise.
12281         (dump_gimple_statistics): Use PRIu64 in printf format.
12282         * gimple.h: Change uint64_t to int.
12283
12284 2018-01-12  Martin Liska  <mliska@suse.cz>
12285
12286         * tree-core.h: Use uint64_t instead of int.
12287         * tree.c (tree_node_counts): Likewise.
12288         (tree_node_sizes): Likewise.
12289         (dump_tree_statistics): Use PRIu64 in printf format.
12290
12291 2018-01-12  Martin Liska  <mliska@suse.cz>
12292
12293         * Makefile.in: As qsort_chk is implemented in vec.c, add
12294         vec.o to linkage of gencfn-macros.
12295         * tree.c (build_new_poly_int_cst): Add CXX_MEM_STAT_INFO as it's
12296         passing the info to record_node_allocation_statistics.
12297         (test_vector_cst_patterns): Add CXX_MEM_STAT_INFO to declaration
12298         and pass the info.
12299         * ggc-common.c (struct ggc_usage): Add operator== and use
12300         it in operator< and compare function.
12301         * mem-stats.h (struct mem_usage): Likewise.
12302         * vec.c (struct vec_usage): Remove operator< and compare
12303         function. Can be simply inherited.
12304
12305 2018-01-12  Martin Jambor  <mjambor@suse.cz>
12306
12307         PR target/81616
12308         * params.def: New parameter PARAM_AVOID_FMA_MAX_BITS.
12309         * tree-ssa-math-opts.c: Include domwalk.h.
12310         (convert_mult_to_fma_1): New function.
12311         (fma_transformation_info): New type.
12312         (fma_deferring_state): Likewise.
12313         (cancel_fma_deferring): New function.
12314         (result_of_phi): Likewise.
12315         (last_fma_candidate_feeds_initial_phi): Likewise.
12316         (convert_mult_to_fma): Added deferring logic, split actual
12317         transformation to convert_mult_to_fma_1.
12318         (math_opts_dom_walker): New type.
12319         (math_opts_dom_walker::after_dom_children): New method, body moved
12320         here from pass_optimize_widening_mul::execute, added deferring logic
12321         bits.
12322         (pass_optimize_widening_mul::execute): Moved most of code to
12323         math_opts_dom_walker::after_dom_children.
12324         * config/i386/x86-tune.def (X86_TUNE_AVOID_128FMA_CHAINS): New.
12325         * config/i386/i386.c (ix86_option_override_internal): Added
12326         maybe_setting of PARAM_AVOID_FMA_MAX_BITS.
12327
12328 2018-01-12  Richard Biener  <rguenther@suse.de>
12329
12330         PR debug/83157
12331         * dwarf2out.c (gen_variable_die): Do not reset old_die for
12332         inline instance vars.
12333
12334 2018-01-12  Oleg Endo  <olegendo@gcc.gnu.org>
12335
12336         PR target/81819
12337         * config/rx/rx.c (rx_is_restricted_memory_address):
12338         Handle SUBREG case.
12339
12340 2018-01-12  Richard Biener  <rguenther@suse.de>
12341
12342         PR tree-optimization/80846
12343         * target.def (split_reduction): New target hook.
12344         * targhooks.c (default_split_reduction): New function.
12345         * targhooks.h (default_split_reduction): Declare.
12346         * tree-vect-loop.c (vect_create_epilog_for_reduction): If the
12347         target requests first reduce vectors by combining low and high
12348         parts.
12349         * tree-vect-stmts.c (vect_gen_perm_mask_any): Adjust.
12350         (get_vectype_for_scalar_type_and_size): Export.
12351         * tree-vectorizer.h (get_vectype_for_scalar_type_and_size): Declare.
12352         * doc/tm.texi.in (TARGET_VECTORIZE_SPLIT_REDUCTION): Document.
12353         * doc/tm.texi: Regenerate.
12354         * config/i386/i386.c (ix86_split_reduction): Implement
12355         TARGET_VECTORIZE_SPLIT_REDUCTION.
12356
12357 2018-01-12  Eric Botcazou  <ebotcazou@adacore.com>
12358
12359         PR target/83368
12360         * config/sparc/sparc.h (PIC_OFFSET_TABLE_REGNUM): Set to INVALID_REGNUM
12361         in PIC mode except for TARGET_VXWORKS_RTP.
12362         * config/sparc/sparc.c: Include cfgrtl.h.
12363         (TARGET_INIT_PIC_REG): Define.
12364         (TARGET_USE_PSEUDO_PIC_REG): Likewise.
12365         (sparc_pic_register_p): New predicate.
12366         (sparc_legitimate_address_p): Use it.
12367         (sparc_legitimize_pic_address): Likewise.
12368         (sparc_delegitimize_address): Likewise.
12369         (sparc_mode_dependent_address_p): Likewise.
12370         (gen_load_pcrel_sym): Remove 4th parameter.
12371         (load_got_register): Adjust call to above.  Remove obsolete stuff.
12372         (sparc_expand_prologue): Do not call load_got_register here.
12373         (sparc_flat_expand_prologue): Likewise.
12374         (sparc_output_mi_thunk): Set the pic_offset_table_rtx object.
12375         (sparc_use_pseudo_pic_reg): New function.
12376         (sparc_init_pic_reg): Likewise.
12377         * config/sparc/sparc.md (vxworks_load_got): Set the GOT register.
12378         (builtin_setjmp_receiver): Enable only for TARGET_VXWORKS_RTP.
12379
12380 2018-01-12  Christophe Lyon  <christophe.lyon@linaro.org>
12381
12382         * doc/sourcebuild.texi (Effective-Target Keywords, Other attributes):
12383         Add item for branch_cost.
12384
12385 2018-01-12  Eric Botcazou  <ebotcazou@adacore.com>
12386
12387         PR rtl-optimization/83565
12388         * rtlanal.c (nonzero_bits1): On WORD_REGISTER_OPERATIONS machines, do
12389         not extend the result to a larger mode for rotate operations.
12390         (num_sign_bit_copies1): Likewise.
12391
12392 2018-01-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
12393
12394         PR target/40411
12395         * config/sol2.h (STARTFILE_ARCH_SPEC): Don't use with -shared or
12396         -symbolic.
12397         Use values-Xc.o for -pedantic.
12398         Link with values-xpg4.o for C90, values-xpg6.o otherwise.
12399
12400 2018-01-12  Martin Liska  <mliska@suse.cz>
12401
12402         PR ipa/83054
12403         * ipa-devirt.c (final_warning_record::grow_type_warnings):
12404         New function.
12405         (possible_polymorphic_call_targets): Use it.
12406         (ipa_devirt): Likewise.
12407
12408 2018-01-12  Martin Liska  <mliska@suse.cz>
12409
12410         * profile-count.h (enum profile_quality): Use 0 as invalid
12411         enum value of profile_quality.
12412
12413 2018-01-12  Chung-Ju Wu  <jasonwucj@gmail.com>
12414
12415         * doc/invoke.texi (NDS32 Options): Add -mext-perf, -mext-perf2 and
12416         -mext-string options.
12417
12418 2018-01-12  Richard Biener  <rguenther@suse.de>
12419
12420         * lto-streamer-out.c (DFS::DFS_write_tree_body): Process
12421         DECL_DEBUG_EXPR conditional on DECL_HAS_DEBUG_EXPR_P.
12422         * tree-streamer-in.c (lto_input_ts_decl_common_tree_pointers):
12423         Likewise.
12424         * tree-streamer-out.c (write_ts_decl_common_tree_pointers): Likewise.
12425
12426 2018-01-11  Michael Meissner  <meissner@linux.vnet.ibm.com>
12427
12428         * configure.ac (--with-long-double-format): Add support for the
12429         configuration option to change the default long double format on
12430         PowerPC systems.
12431         * config.gcc (powerpc*-linux*-*): Likewise.
12432         * configure: Regenerate.
12433         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): If long
12434         double is IEEE, define __KC__ and __KF__ to allow floatn.h to be
12435         used without modification.
12436
12437 2018-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
12438
12439         * config/rs6000/rs6000-builtin.def (BU_P7_MISC_X): New #define.
12440         (SPEC_BARRIER): New instantiation of BU_P7_MISC_X.
12441         * config/rs6000/rs6000.c (rs6000_expand_builtin): Handle
12442         MISC_BUILTIN_SPEC_BARRIER.
12443         (rs6000_init_builtins): Likewise.
12444         * config/rs6000/rs6000.md (UNSPECV_SPEC_BARRIER): New UNSPECV
12445         enum value.
12446         (speculation_barrier): New define_insn.
12447         * doc/extend.texi: Document __builtin_speculation_barrier.
12448
12449 2018-01-11  Jakub Jelinek  <jakub@redhat.com>
12450
12451         PR target/83203
12452         * config/i386/i386.c (ix86_expand_vector_init_one_nonzero): If one_var
12453         is 0, for V{8,16}S[IF] and V[48]D[IF]mode use gen_vec_set<mode>_0.
12454         * config/i386/sse.md (VI8_AVX_AVX512F, VI4F_256_512): New mode
12455         iterators.
12456         (ssescalarmodesuffix): Add 512-bit vectors.  Use "d" or "q" for
12457         integral modes instead of "ss" and "sd".
12458         (vec_set<mode>_0): New define_insns for 256-bit and 512-bit
12459         vectors with 32-bit and 64-bit elements.
12460         (vecdupssescalarmodesuffix): New mode attribute.
12461         (vec_dup<mode>): Use it.
12462
12463 2018-01-11  H.J. Lu  <hongjiu.lu@intel.com>
12464
12465         PR target/83330
12466         * config/i386/i386.c (ix86_compute_frame_layout): Align stack
12467         frame if argument is passed on stack.
12468
12469 2018-01-11  Jakub Jelinek  <jakub@redhat.com>
12470
12471         PR target/82682
12472         * ree.c (combine_reaching_defs): Optimize also
12473         reg2=exp; reg1=reg2; reg2=any_extend(reg1); into
12474         reg2=any_extend(exp); reg1=reg2;, formatting fix.
12475
12476 2018-01-11  Jan Hubicka  <hubicka@ucw.cz>
12477
12478         PR middle-end/83189
12479         * gimple-ssa-isolate-paths.c (isolate_path): Fix profile update.
12480
12481 2018-01-11  Jan Hubicka  <hubicka@ucw.cz>
12482
12483         PR middle-end/83718
12484         * tree-inline.c (copy_cfg_body): Adjust num&den for scaling
12485         after they are computed.
12486
12487 2018-01-11  Bin Cheng  <bin.cheng@arm.com>
12488
12489         PR tree-optimization/83695
12490         * gimple-loop-linterchange.cc
12491         (tree_loop_interchange::interchange_loops): Call scev_reset_htab to
12492         reset cached scev information after interchange.
12493         (pass_linterchange::execute): Remove call to scev_reset_htab.
12494
12495 2018-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
12496
12497         * config/arm/arm_neon.h (vfmlal_lane_low_u32, vfmlal_lane_high_u32,
12498         vfmlalq_laneq_low_u32, vfmlalq_lane_low_u32, vfmlal_laneq_low_u32,
12499         vfmlalq_laneq_high_u32, vfmlalq_lane_high_u32, vfmlal_laneq_high_u32,
12500         vfmlsl_lane_low_u32, vfmlsl_lane_high_u32, vfmlslq_laneq_low_u32,
12501         vfmlslq_lane_low_u32, vfmlsl_laneq_low_u32, vfmlslq_laneq_high_u32,
12502         vfmlslq_lane_high_u32, vfmlsl_laneq_high_u32): Define.
12503         * config/arm/arm_neon_builtins.def (vfmal_lane_low,
12504         vfmal_lane_lowv4hf, vfmal_lane_lowv8hf, vfmal_lane_high,
12505         vfmal_lane_highv4hf, vfmal_lane_highv8hf, vfmsl_lane_low,
12506         vfmsl_lane_lowv4hf, vfmsl_lane_lowv8hf, vfmsl_lane_high,
12507         vfmsl_lane_highv4hf, vfmsl_lane_highv8hf): New sets of builtins.
12508         * config/arm/iterators.md (VFMLSEL2, vfmlsel2): New mode attributes.
12509         (V_lane_reg): Likewise.
12510         * config/arm/neon.md (neon_vfm<vfml_op>l_lane_<vfml_half><VCVTF:mode>):
12511         New define_expand.
12512         (neon_vfm<vfml_op>l_lane_<vfml_half><vfmlsel2><mode>): Likewise.
12513         (vfmal_lane_low<mode>_intrinsic,
12514         vfmal_lane_low<vfmlsel2><mode>_intrinsic,
12515         vfmal_lane_high<vfmlsel2><mode>_intrinsic,
12516         vfmal_lane_high<mode>_intrinsic, vfmsl_lane_low<mode>_intrinsic,
12517         vfmsl_lane_low<vfmlsel2><mode>_intrinsic,
12518         vfmsl_lane_high<vfmlsel2><mode>_intrinsic,
12519         vfmsl_lane_high<mode>_intrinsic): New define_insns.
12520
12521 2018-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
12522
12523         * config/arm/arm-cpus.in (fp16fml): New feature.
12524         (ALL_SIMD): Add fp16fml.
12525         (armv8.2-a): Add fp16fml as an option.
12526         (armv8.3-a): Likewise.
12527         (armv8.4-a): Add fp16fml as part of fp16.
12528         * config/arm/arm.h (TARGET_FP16FML): Define.
12529         * config/arm/arm-c.c (arm_cpu_builtins): Define __ARM_FEATURE_FP16_FML
12530         when appropriate.
12531         * config/arm/arm-modes.def (V2HF): Define.
12532         * config/arm/arm_neon.h (vfmlal_low_u32, vfmlsl_low_u32,
12533         vfmlal_high_u32, vfmlsl_high_u32, vfmlalq_low_u32,
12534         vfmlslq_low_u32, vfmlalq_high_u32, vfmlslq_high_u32): Define.
12535         * config/arm/arm_neon_builtins.def (vfmal_low, vfmal_high,
12536         vfmsl_low, vfmsl_high): New set of builtins.
12537         * config/arm/iterators.md (PLUSMINUS): New code iterator.
12538         (vfml_op): New code attribute.
12539         (VFMLHALVES): New int iterator.
12540         (VFML, VFMLSEL): New mode attributes.
12541         (V_reg): Define mapping for V2HF.
12542         (V_hi, V_lo): New mode attributes.
12543         (VF_constraint): Likewise.
12544         (vfml_half, vfml_half_selector): New int attributes.
12545         * config/arm/neon.md (neon_vfm<vfml_op>l_<vfml_half><mode>): New
12546         define_expand.
12547         (vfmal_low<mode>_intrinsic, vfmsl_high<mode>_intrinsic,
12548         vfmal_high<mode>_intrinsic, vfmsl_low<mode>_intrinsic):
12549         New define_insn.
12550         * config/arm/t-arm-elf (v8_fps): Add fp16fml.
12551         * config/arm/t-multilib (v8_2_a_simd_variants): Add fp16fml.
12552         * config/arm/unspecs.md (UNSPEC_VFML_LO, UNSPEC_VFML_HI): New unspecs.
12553         * doc/invoke.texi (ARM Options): Document fp16fml.  Update armv8.4-a
12554         documentation.
12555         * doc/sourcebuild.texi (arm_fp16fml_neon_ok, arm_fp16fml_neon):
12556         Document new effective target and option set.
12557
12558 2018-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
12559
12560         * config/arm/arm-cpus.in (armv8_4): New feature.
12561         (ARMv8_4a): New fgroup.
12562         (armv8.4-a): New arch.
12563         * config/arm/arm-tables.opt: Regenerate.
12564         * config/arm/t-aprofile: Add matching rules for -march=armv8.4-a.
12565         * config/arm/t-arm-elf (all_v8_archs): Add armv8.4-a.
12566         * config/arm/t-multilib (v8_4_a_simd_variants): New variable.
12567         Add matching rules for -march=armv8.4-a and extensions.
12568         * doc/invoke.texi (ARM Options): Document -march=armv8.4-a.
12569
12570 2018-01-11  Oleg Endo  <olegendo@gcc.gnu.org>
12571
12572         PR target/81821
12573         * config/rx/rx.md (BW): New mode attribute.
12574         (sync_lock_test_and_setsi): Add mode suffix to insn output.
12575
12576 2018-01-11  Richard Biener  <rguenther@suse.de>
12577
12578         PR tree-optimization/83435
12579         * graphite.c (canonicalize_loop_form): Ignore fake loop exit edges.
12580         * graphite-scop-detection.c (scop_detection::get_sese): Likewise.
12581         * tree-vrp.c (add_assert_info): Drop TREE_OVERFLOW if they appear.
12582
12583 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
12584             Alan Hayward  <alan.hayward@arm.com>
12585             David Sherwood  <david.sherwood@arm.com>
12586
12587         * config/aarch64/aarch64.c (aarch64_address_info): Add a const_offset
12588         field.
12589         (aarch64_classify_address): Initialize it.  Track polynomial offsets.
12590         (aarch64_print_address_internal): Use it to check for a zero offset.
12591
12592 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
12593             Alan Hayward  <alan.hayward@arm.com>
12594             David Sherwood  <david.sherwood@arm.com>
12595
12596         * config/aarch64/aarch64-modes.def (NUM_POLY_INT_COEFFS): Set to 2.
12597         * config/aarch64/aarch64-protos.h (aarch64_initial_elimination_offset):
12598         Return a poly_int64 rather than a HOST_WIDE_INT.
12599         (aarch64_offset_7bit_signed_scaled_p): Take the offset as a poly_int64
12600         rather than a HOST_WIDE_INT.
12601         * config/aarch64/aarch64.h (aarch64_frame): Protect with
12602         HAVE_POLY_INT_H rather than HOST_WIDE_INT.  Change locals_offset,
12603         hard_fp_offset, frame_size, initial_adjust, callee_offset and
12604         final_offset from HOST_WIDE_INT to poly_int64.
12605         * config/aarch64/aarch64-builtins.c (aarch64_simd_expand_args): Use
12606         to_constant when getting the number of units in an Advanced SIMD
12607         mode.
12608         (aarch64_builtin_vectorized_function): Check for a constant number
12609         of units.
12610         * config/aarch64/aarch64-simd.md (mov<mode>): Handle polynomial
12611         GET_MODE_SIZE.
12612         (aarch64_ld<VSTRUCT:nregs>_lane<VALLDIF:mode>): Use the nunits
12613         attribute instead of GET_MODE_NUNITS.
12614         * config/aarch64/aarch64.c (aarch64_hard_regno_nregs)
12615         (aarch64_class_max_nregs): Use the constant_lowest_bound of the
12616         GET_MODE_SIZE for fixed-size registers.
12617         (aarch64_const_vec_all_same_in_range_p): Use const_vec_duplicate_p.
12618         (aarch64_hard_regno_call_part_clobbered, aarch64_classify_index)
12619         (aarch64_mode_valid_for_sched_fusion_p, aarch64_classify_address)
12620         (aarch64_legitimize_address_displacement, aarch64_secondary_reload)
12621         (aarch64_print_operand, aarch64_print_address_internal)
12622         (aarch64_address_cost, aarch64_rtx_costs, aarch64_register_move_cost)
12623         (aarch64_short_vector_p, aapcs_vfp_sub_candidate)
12624         (aarch64_simd_attr_length_rglist, aarch64_operands_ok_for_ldpstp):
12625         Handle polynomial GET_MODE_SIZE.
12626         (aarch64_hard_regno_caller_save_mode): Likewise.  Return modes
12627         wider than SImode without modification.
12628         (tls_symbolic_operand_type): Use strip_offset instead of split_const.
12629         (aarch64_pass_by_reference, aarch64_layout_arg, aarch64_pad_reg_upward)
12630         (aarch64_gimplify_va_arg_expr): Assert that we don't yet handle
12631         passing and returning SVE modes.
12632         (aarch64_function_value, aarch64_layout_arg): Use gen_int_mode
12633         rather than GEN_INT.
12634         (aarch64_emit_probe_stack_range): Take the size as a poly_int64
12635         rather than a HOST_WIDE_INT, but call sorry if it isn't constant.
12636         (aarch64_allocate_and_probe_stack_space): Likewise.
12637         (aarch64_layout_frame): Cope with polynomial offsets.
12638         (aarch64_save_callee_saves, aarch64_restore_callee_saves): Take the
12639         start_offset as a poly_int64 rather than a HOST_WIDE_INT.  Track
12640         polynomial offsets.
12641         (offset_9bit_signed_unscaled_p, offset_12bit_unsigned_scaled_p)
12642         (aarch64_offset_7bit_signed_scaled_p): Take the offset as a
12643         poly_int64 rather than a HOST_WIDE_INT.
12644         (aarch64_get_separate_components, aarch64_process_components)
12645         (aarch64_expand_prologue, aarch64_expand_epilogue)
12646         (aarch64_use_return_insn_p): Handle polynomial frame offsets.
12647         (aarch64_anchor_offset): New function, split out from...
12648         (aarch64_legitimize_address): ...here.
12649         (aarch64_builtin_vectorization_cost): Handle polynomial
12650         TYPE_VECTOR_SUBPARTS.
12651         (aarch64_simd_check_vect_par_cnst_half): Handle polynomial
12652         GET_MODE_NUNITS.
12653         (aarch64_simd_make_constant, aarch64_expand_vector_init): Get the
12654         number of elements from the PARALLEL rather than the mode.
12655         (aarch64_shift_truncation_mask): Use GET_MODE_UNIT_BITSIZE
12656         rather than GET_MODE_BITSIZE.
12657         (aarch64_evpc_trn, aarch64_evpc_uzp, aarch64_evpc_ext)
12658         (aarch64_evpc_rev, aarch64_evpc_dup, aarch64_evpc_zip)
12659         (aarch64_expand_vec_perm_const_1): Handle polynomial
12660         d->perm.length () and d->perm elements.
12661         (aarch64_evpc_tbl): Likewise.  Use nelt rather than GET_MODE_NUNITS.
12662         Apply to_constant to d->perm elements.
12663         (aarch64_simd_valid_immediate, aarch64_vec_fpconst_pow_of_2): Handle
12664         polynomial CONST_VECTOR_NUNITS.
12665         (aarch64_move_pointer): Take amount as a poly_int64 rather
12666         than an int.
12667         (aarch64_progress_pointer): Avoid temporary variable.
12668         * config/aarch64/aarch64.md (aarch64_<crc_variant>): Use
12669         the mode attribute instead of GET_MODE.
12670
12671 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
12672             Alan Hayward  <alan.hayward@arm.com>
12673             David Sherwood  <david.sherwood@arm.com>
12674
12675         * config/aarch64/aarch64.c (aarch64_force_temporary): Assert that
12676         x exists before using it.
12677         (aarch64_add_constant_internal): Rename to...
12678         (aarch64_add_offset_1): ...this.  Replace regnum with separate
12679         src and dest rtxes.  Handle the case in which they're different,
12680         including when the offset is zero.  Replace scratchreg with an rtx.
12681         Use 2 additions if there is no spare register into which we can
12682         move a 16-bit constant.
12683         (aarch64_add_constant): Delete.
12684         (aarch64_add_offset): Replace reg with separate src and dest
12685         rtxes.  Take a poly_int64 offset instead of a HOST_WIDE_INT.
12686         Use aarch64_add_offset_1.
12687         (aarch64_add_sp, aarch64_sub_sp): Take the scratch register as
12688         an rtx rather than an int.  Take the delta as a poly_int64
12689         rather than a HOST_WIDE_INT.  Use aarch64_add_offset.
12690         (aarch64_expand_mov_immediate): Update uses of aarch64_add_offset.
12691         (aarch64_expand_prologue): Update calls to aarch64_sub_sp,
12692         aarch64_allocate_and_probe_stack_space and aarch64_add_offset.
12693         (aarch64_expand_epilogue): Update calls to aarch64_add_offset
12694         and aarch64_add_sp.
12695         (aarch64_output_mi_thunk): Use aarch64_add_offset rather than
12696         aarch64_add_constant.
12697
12698 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
12699
12700         * config/aarch64/aarch64.c (aarch64_reinterpret_float_as_int):
12701         Use scalar_float_mode.
12702
12703 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
12704
12705         * config/aarch64/aarch64-simd.md
12706         (aarch64_fml<f16mac1>l<f16quad>_low<mode>): Avoid GET_MODE_NUNITS.
12707         (aarch64_fml<f16mac1>l<f16quad>_high<mode>): Likewise.
12708         (aarch64_fml<f16mac1>l_lane_lowv2sf): Likewise.
12709         (aarch64_fml<f16mac1>l_lane_highv2sf): Likewise.
12710         (aarch64_fml<f16mac1>lq_laneq_lowv4sf): Likewise.
12711         (aarch64_fml<f16mac1>lq_laneq_highv4sf): Likewise.
12712         (aarch64_fml<f16mac1>l_laneq_lowv2sf): Likewise.
12713         (aarch64_fml<f16mac1>l_laneq_highv2sf): Likewise.
12714         (aarch64_fml<f16mac1>lq_lane_lowv4sf): Likewise.
12715         (aarch64_fml<f16mac1>lq_lane_highv4sf): Likewise.
12716
12717 2018-01-11  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
12718
12719         PR target/83514
12720         * config/arm/arm.c (arm_declare_function_name): Set arch_to_print if
12721         targ_options->x_arm_arch_string is non NULL.
12722
12723 2018-01-11  Tamar Christina  <tamar.christina@arm.com>
12724
12725         * config/aarch64/aarch64.h
12726         (AARCH64_FL_FOR_ARCH8_4): Add  AARCH64_FL_DOTPROD.
12727
12728 2018-01-11  Sudakshina Das  <sudi.das@arm.com>
12729
12730         PR target/82096
12731         * expmed.c (emit_store_flag_force): Swap if const op0
12732         and change VOIDmode to mode of op0.
12733
12734 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
12735
12736         PR rtl-optimization/83761
12737         * caller-save.c (replace_reg_with_saved_mem): Pass bits rather
12738         than bytes to mode_for_size.
12739
12740 2018-01-10  Jan Hubicka  <hubicka@ucw.cz>
12741
12742         PR middle-end/83189
12743         * gfortran.fortran-torture/compile/pr83189.f90: New testcase.
12744         * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Handle zero
12745         profile.
12746
12747 2018-01-10  Jan Hubicka  <hubicka@ucw.cz>
12748
12749         PR middle-end/83575
12750         * cfgrtl.c (rtl_verify_edges): Only verify fixability of partition
12751         when in layout mode.
12752         (cfg_layout_finalize): Do not verify cfg before we are out of layout.
12753         * cfgcleanup.c (try_optimize_cfg): Only verify flow info when doing
12754         partition fixup.
12755
12756 2018-01-10  Michael Collison  <michael.collison@arm.com>
12757
12758         * config/aarch64/aarch64-modes.def (V2HF): New VECTOR_MODE.
12759         * config/aarch64/aarch64-option-extension.def: Add
12760         AARCH64_OPT_EXTENSION of 'fp16fml'.
12761         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
12762         (__ARM_FEATURE_FP16_FML): Define if TARGET_F16FML is true.
12763         * config/aarch64/predicates.md (aarch64_lane_imm3): New predicate.
12764         * config/aarch64/constraints.md (Ui7): New constraint.
12765         * config/aarch64/iterators.md (VFMLA_W): New mode iterator.
12766         (VFMLA_SEL_W): Ditto.
12767         (f16quad): Ditto.
12768         (f16mac1): Ditto.
12769         (VFMLA16_LOW): New int iterator.
12770         (VFMLA16_HIGH): Ditto.
12771         (UNSPEC_FMLAL): New unspec.
12772         (UNSPEC_FMLSL): Ditto.
12773         (UNSPEC_FMLAL2): Ditto.
12774         (UNSPEC_FMLSL2): Ditto.
12775         (f16mac): New code attribute.
12776         * config/aarch64/aarch64-simd-builtins.def
12777         (aarch64_fmlal_lowv2sf): Ditto.
12778         (aarch64_fmlsl_lowv2sf): Ditto.
12779         (aarch64_fmlalq_lowv4sf): Ditto.
12780         (aarch64_fmlslq_lowv4sf): Ditto.
12781         (aarch64_fmlal_highv2sf): Ditto.
12782         (aarch64_fmlsl_highv2sf): Ditto.
12783         (aarch64_fmlalq_highv4sf): Ditto.
12784         (aarch64_fmlslq_highv4sf): Ditto.
12785         (aarch64_fmlal_lane_lowv2sf): Ditto.
12786         (aarch64_fmlsl_lane_lowv2sf): Ditto.
12787         (aarch64_fmlal_laneq_lowv2sf): Ditto.
12788         (aarch64_fmlsl_laneq_lowv2sf): Ditto.
12789         (aarch64_fmlalq_lane_lowv4sf): Ditto.
12790         (aarch64_fmlsl_lane_lowv4sf): Ditto.
12791         (aarch64_fmlalq_laneq_lowv4sf): Ditto.
12792         (aarch64_fmlsl_laneq_lowv4sf): Ditto.
12793         (aarch64_fmlal_lane_highv2sf): Ditto.
12794         (aarch64_fmlsl_lane_highv2sf): Ditto.
12795         (aarch64_fmlal_laneq_highv2sf): Ditto.
12796         (aarch64_fmlsl_laneq_highv2sf): Ditto.
12797         (aarch64_fmlalq_lane_highv4sf): Ditto.
12798         (aarch64_fmlsl_lane_highv4sf): Ditto.
12799         (aarch64_fmlalq_laneq_highv4sf): Ditto.
12800         (aarch64_fmlsl_laneq_highv4sf): Ditto.
12801         * config/aarch64/aarch64-simd.md:
12802         (aarch64_fml<f16mac1>l<f16quad>_low<mode>): New pattern.
12803         (aarch64_fml<f16mac1>l<f16quad>_high<mode>): Ditto.
12804         (aarch64_simd_fml<f16mac1>l<f16quad>_low<mode>): Ditto.
12805         (aarch64_simd_fml<f16mac1>l<f16quad>_high<mode>): Ditto.
12806         (aarch64_fml<f16mac1>l_lane_lowv2sf): Ditto.
12807         (aarch64_fml<f16mac1>l_lane_highv2sf): Ditto.
12808         (aarch64_simd_fml<f16mac>l_lane_lowv2sf): Ditto.
12809         (aarch64_simd_fml<f16mac>l_lane_highv2sf): Ditto.
12810         (aarch64_fml<f16mac1>lq_laneq_lowv4sf): Ditto.
12811         (aarch64_fml<f16mac1>lq_laneq_highv4sf): Ditto.
12812         (aarch64_simd_fml<f16mac>lq_laneq_lowv4sf): Ditto.
12813         (aarch64_simd_fml<f16mac>lq_laneq_highv4sf): Ditto.
12814         (aarch64_fml<f16mac1>l_laneq_lowv2sf): Ditto.
12815         (aarch64_fml<f16mac1>l_laneq_highv2sf): Ditto.
12816         (aarch64_simd_fml<f16mac>l_laneq_lowv2sf): Ditto.
12817         (aarch64_simd_fml<f16mac>l_laneq_highv2sf): Ditto.
12818         (aarch64_fml<f16mac1>lq_lane_lowv4sf): Ditto.
12819         (aarch64_fml<f16mac1>lq_lane_highv4sf): Ditto.
12820         (aarch64_simd_fml<f16mac>lq_lane_lowv4sf): Ditto.
12821         (aarch64_simd_fml<f16mac>lq_lane_highv4sf): Ditto.
12822         * config/aarch64/arm_neon.h (vfmlal_low_u32): New intrinsic.
12823         (vfmlsl_low_u32): Ditto.
12824         (vfmlalq_low_u32): Ditto.
12825         (vfmlslq_low_u32): Ditto.
12826         (vfmlal_high_u32): Ditto.
12827         (vfmlsl_high_u32): Ditto.
12828         (vfmlalq_high_u32): Ditto.
12829         (vfmlslq_high_u32): Ditto.
12830         (vfmlal_lane_low_u32): Ditto.
12831         (vfmlsl_lane_low_u32): Ditto.
12832         (vfmlal_laneq_low_u32): Ditto.
12833         (vfmlsl_laneq_low_u32): Ditto.
12834         (vfmlalq_lane_low_u32): Ditto.
12835         (vfmlslq_lane_low_u32): Ditto.
12836         (vfmlalq_laneq_low_u32): Ditto.
12837         (vfmlslq_laneq_low_u32): Ditto.
12838         (vfmlal_lane_high_u32): Ditto.
12839         (vfmlsl_lane_high_u32): Ditto.
12840         (vfmlal_laneq_high_u32): Ditto.
12841         (vfmlsl_laneq_high_u32): Ditto.
12842         (vfmlalq_lane_high_u32): Ditto.
12843         (vfmlslq_lane_high_u32): Ditto.
12844         (vfmlalq_laneq_high_u32): Ditto.
12845         (vfmlslq_laneq_high_u32): Ditto.
12846         * config/aarch64/aarch64.h (AARCH64_FL_F16SML): New flag.
12847         (AARCH64_FL_FOR_ARCH8_4): New.
12848         (AARCH64_ISA_F16FML): New ISA flag.
12849         (TARGET_F16FML): New feature flag for fp16fml.
12850         (doc/invoke.texi): Document new fp16fml option.
12851
12852 2018-01-10  Michael Collison  <michael.collison@arm.com>
12853
12854         * config/aarch64/aarch64-builtins.c:
12855         (aarch64_types_ternopu_imm_qualifiers, TYPES_TERNOPUI): New.
12856         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
12857         (__ARM_FEATURE_SHA3): Define if TARGET_SHA3 is true.
12858         * config/aarch64/aarch64.h (AARCH64_FL_SHA3): New flags.
12859         (AARCH64_ISA_SHA3): New ISA flag.
12860         (TARGET_SHA3): New feature flag for sha3.
12861         * config/aarch64/iterators.md (sha512_op): New int attribute.
12862         (CRYPTO_SHA512): New int iterator.
12863         (UNSPEC_SHA512H): New unspec.
12864         (UNSPEC_SHA512H2): Ditto.
12865         (UNSPEC_SHA512SU0): Ditto.
12866         (UNSPEC_SHA512SU1): Ditto.
12867         * config/aarch64/aarch64-simd-builtins.def
12868         (aarch64_crypto_sha512hqv2di): New builtin.
12869         (aarch64_crypto_sha512h2qv2di): Ditto.
12870         (aarch64_crypto_sha512su0qv2di): Ditto.
12871         (aarch64_crypto_sha512su1qv2di): Ditto.
12872         (aarch64_eor3qv8hi): Ditto.
12873         (aarch64_rax1qv2di): Ditto.
12874         (aarch64_xarqv2di): Ditto.
12875         (aarch64_bcaxqv8hi): Ditto.
12876         * config/aarch64/aarch64-simd.md:
12877         (aarch64_crypto_sha512h<sha512_op>qv2di): New pattern.
12878         (aarch64_crypto_sha512su0qv2di): Ditto.
12879         (aarch64_crypto_sha512su1qv2di): Ditto.
12880         (aarch64_eor3qv8hi): Ditto.
12881         (aarch64_rax1qv2di): Ditto.
12882         (aarch64_xarqv2di): Ditto.
12883         (aarch64_bcaxqv8hi): Ditto.
12884         * config/aarch64/arm_neon.h (vsha512hq_u64): New intrinsic.
12885         (vsha512h2q_u64): Ditto.
12886         (vsha512su0q_u64): Ditto.
12887         (vsha512su1q_u64): Ditto.
12888         (veor3q_u16): Ditto.
12889         (vrax1q_u64): Ditto.
12890         (vxarq_u64): Ditto.
12891         (vbcaxq_u16): Ditto.
12892         * config/arm/types.md (crypto_sha512): New type attribute.
12893         (crypto_sha3): Ditto.
12894         (doc/invoke.texi): Document new sha3 option.
12895
12896 2018-01-10  Michael Collison  <michael.collison@arm.com>
12897
12898         * config/aarch64/aarch64-builtins.c:
12899         (aarch64_types_quadopu_imm_qualifiers, TYPES_QUADOPUI): New.
12900         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
12901         (__ARM_FEATURE_SM3): Define if TARGET_SM4 is true.
12902         (__ARM_FEATURE_SM4): Define if TARGET_SM4 is true.
12903         * config/aarch64/aarch64.h (AARCH64_FL_SM4): New flags.
12904         (AARCH64_ISA_SM4): New ISA flag.
12905         (TARGET_SM4): New feature flag for sm4.
12906         * config/aarch64/aarch64-simd-builtins.def
12907         (aarch64_sm3ss1qv4si): Ditto.
12908         (aarch64_sm3tt1aq4si): Ditto.
12909         (aarch64_sm3tt1bq4si): Ditto.
12910         (aarch64_sm3tt2aq4si): Ditto.
12911         (aarch64_sm3tt2bq4si): Ditto.
12912         (aarch64_sm3partw1qv4si): Ditto.
12913         (aarch64_sm3partw2qv4si): Ditto.
12914         (aarch64_sm4eqv4si): Ditto.
12915         (aarch64_sm4ekeyqv4si): Ditto.
12916         * config/aarch64/aarch64-simd.md:
12917         (aarch64_sm3ss1qv4si): Ditto.
12918         (aarch64_sm3tt<sm3tt_op>qv4si): Ditto.
12919         (aarch64_sm3partw<sm3part_op>qv4si): Ditto.
12920         (aarch64_sm4eqv4si): Ditto.
12921         (aarch64_sm4ekeyqv4si): Ditto.
12922         * config/aarch64/iterators.md (sm3tt_op): New int iterator.
12923         (sm3part_op): Ditto.
12924         (CRYPTO_SM3TT): Ditto.
12925         (CRYPTO_SM3PART): Ditto.
12926         (UNSPEC_SM3SS1): New unspec.
12927         (UNSPEC_SM3TT1A): Ditto.
12928         (UNSPEC_SM3TT1B): Ditto.
12929         (UNSPEC_SM3TT2A): Ditto.
12930         (UNSPEC_SM3TT2B): Ditto.
12931         (UNSPEC_SM3PARTW1): Ditto.
12932         (UNSPEC_SM3PARTW2): Ditto.
12933         (UNSPEC_SM4E): Ditto.
12934         (UNSPEC_SM4EKEY): Ditto.
12935         * config/aarch64/constraints.md (Ui2): New constraint.
12936         * config/aarch64/predicates.md (aarch64_imm2): New predicate.
12937         * config/arm/types.md (crypto_sm3): New type attribute.
12938         (crypto_sm4): Ditto.
12939         * config/aarch64/arm_neon.h (vsm3ss1q_u32): New intrinsic.
12940         (vsm3tt1aq_u32): Ditto.
12941         (vsm3tt1bq_u32): Ditto.
12942         (vsm3tt2aq_u32): Ditto.
12943         (vsm3tt2bq_u32): Ditto.
12944         (vsm3partw1q_u32): Ditto.
12945         (vsm3partw2q_u32): Ditto.
12946         (vsm4eq_u32): Ditto.
12947         (vsm4ekeyq_u32): Ditto.
12948         (doc/invoke.texi): Document new sm4 option.
12949
12950 2018-01-10  Michael Collison  <michael.collison@arm.com>
12951
12952         * config/aarch64/aarch64-arches.def (armv8.4-a): New architecture.
12953         * config/aarch64/aarch64.h (AARCH64_ISA_V8_4): New ISA flag.
12954         (AARCH64_FL_FOR_ARCH8_4): New.
12955         (AARCH64_FL_V8_4): New flag.
12956         (doc/invoke.texi): Document new armv8.4-a option.
12957
12958 2018-01-10  Michael Collison  <michael.collison@arm.com>
12959
12960         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
12961         (__ARM_FEATURE_AES): Define if TARGET_AES is true.
12962         (__ARM_FEATURE_SHA2): Define if TARGET_SHA2 is true.
12963         * config/aarch64/aarch64-option-extension.def: Add
12964         AARCH64_OPT_EXTENSION of 'sha2'.
12965         (aes): Add AARCH64_OPT_EXTENSION of 'aes'.
12966         (crypto): Disable sha2 and aes if crypto disabled.
12967         (crypto): Enable aes and sha2 if enabled.
12968         (simd): Disable sha2 and aes if simd disabled.
12969         * config/aarch64/aarch64.h (AARCH64_FL_AES, AARCH64_FL_SHA2):
12970         New flags.
12971         (AARCH64_ISA_AES, AARCH64_ISA_SHA2): New ISA flags.
12972         (TARGET_SHA2): New feature flag for sha2.
12973         (TARGET_AES): New feature flag for aes.
12974         * config/aarch64/aarch64-simd.md:
12975         (aarch64_crypto_aes<aes_op>v16qi): Make pattern
12976         conditional on TARGET_AES.
12977         (aarch64_crypto_aes<aesmc_op>v16qi): Ditto.
12978         (aarch64_crypto_sha1hsi): Make pattern conditional
12979         on TARGET_SHA2.
12980         (aarch64_crypto_sha1hv4si): Ditto.
12981         (aarch64_be_crypto_sha1hv4si): Ditto.
12982         (aarch64_crypto_sha1su1v4si): Ditto.
12983         (aarch64_crypto_sha1<sha1_op>v4si): Ditto.
12984         (aarch64_crypto_sha1su0v4si): Ditto.
12985         (aarch64_crypto_sha256h<sha256_op>v4si): Ditto.
12986         (aarch64_crypto_sha256su0v4si): Ditto.
12987         (aarch64_crypto_sha256su1v4si): Ditto.
12988         (doc/invoke.texi): Document new aes and sha2 options.
12989
12990 2018-01-10  Martin Sebor  <msebor@redhat.com>
12991
12992         PR tree-optimization/83781
12993         * gimple-fold.c (get_range_strlen): Avoid treating arrays of pointers
12994         as string arrays.
12995
12996 2018-01-11  Martin Sebor  <msebor@gmail.com>
12997             Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
12998
12999         PR tree-optimization/83501
13000         PR tree-optimization/81703
13001
13002         * tree-ssa-strlen.c (get_string_cst): Rename...
13003         (get_string_len): ...to this.  Handle global constants.
13004         (handle_char_store): Adjust.
13005
13006 2018-01-10  Kito Cheng  <kito.cheng@gmail.com>
13007             Jim Wilson  <jimw@sifive.com>
13008
13009         * config/riscv/riscv-protos.h (riscv_output_return): New.
13010         * config/riscv/riscv.c (struct machine_function): New naked_p field.
13011         (riscv_attribute_table, riscv_output_return),
13012         (riscv_handle_fndecl_attribute, riscv_naked_function_p),
13013         (riscv_allocate_stack_slots_for_args, riscv_warn_func_return): New.
13014         (riscv_compute_frame_info): Only compute frame->mask if not a naked
13015         function.
13016         (riscv_expand_prologue): Add early return for naked function.
13017         (riscv_expand_epilogue): Likewise.
13018         (riscv_function_ok_for_sibcall): Return false for naked function.
13019         (riscv_set_current_function): New.
13020         (TARGET_SET_CURRENT_FUNCTION, TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS),
13021         (TARGET_ATTRIBUTE_TABLE, TARGET_WARN_FUNC_RETURN): New.
13022         * config/riscv/riscv.md (simple_return): Call riscv_output_return.
13023         * doc/extend.texi (RISC-V Function Attributes): New.
13024
13025 2018-01-10  Michael Meissner  <meissner@linux.vnet.ibm.com>
13026
13027         * config/rs6000/rs6000.c (is_complex_IBM_long_double): Explicitly
13028         check for 128-bit long double before checking TCmode.
13029         * config/rs6000/rs6000.h (FLOAT128_IEEE_P): Explicitly check for
13030         128-bit long doubles before checking TFmode or TCmode.
13031         (FLOAT128_IBM_P): Likewise.
13032
13033 2018-01-10  Martin Sebor  <msebor@redhat.com>
13034
13035         PR tree-optimization/83671
13036         * builtins.c (c_strlen): Unconditionally return zero for the empty
13037         string.
13038         Use -Warray-bounds for warnings.
13039         * gimple-fold.c (get_range_strlen): Handle non-constant lengths
13040         for non-constant array indices with COMPONENT_REF, arrays of
13041         arrays, and pointers to arrays.
13042         (gimple_fold_builtin_strlen): Determine and set length range for
13043         non-constant character arrays.
13044
13045 2018-01-10  Aldy Hernandez  <aldyh@redhat.com>
13046
13047         PR middle-end/81897
13048         * tree-ssa-uninit.c (convert_control_dep_chain_into_preds): Skip
13049         empty blocks.
13050
13051 2018-01-10  Eric Botcazou  <ebotcazou@adacore.com>
13052
13053         * dwarf2out.c (dwarf2out_var_location): Do not pass NULL to fprintf.
13054
13055 2018-01-10  Peter Bergner  <bergner@vnet.ibm.com>
13056
13057         PR target/83399
13058         * config/rs6000/rs6000.c (print_operand) <'y'>: Use
13059         VECTOR_MEM_ALTIVEC_OR_VSX_P.
13060         * config/rs6000/vsx.md (*vsx_le_perm_load_<mode> for VSX_D): Use
13061         indexed_or_indirect_operand predicate.
13062         (*vsx_le_perm_load_<mode> for VSX_W): Likewise.
13063         (*vsx_le_perm_load_v8hi): Likewise.
13064         (*vsx_le_perm_load_v16qi): Likewise.
13065         (*vsx_le_perm_store_<mode> for VSX_D): Likewise.
13066         (*vsx_le_perm_store_<mode> for VSX_W): Likewise.
13067         (*vsx_le_perm_store_v8hi): Likewise.
13068         (*vsx_le_perm_store_v16qi): Likewise.
13069         (eight unnamed splitters): Likewise.
13070
13071 2018-01-10  Peter Bergner  <bergner@vnet.ibm.com>
13072
13073         * config/rs6000/x86intrin.h: Change #warning to #error. Update message.
13074         * config/rs6000/emmintrin.h: Likewise.
13075         * config/rs6000/mmintrin.h: Likewise.
13076         * config/rs6000/xmmintrin.h: Likewise.
13077
13078 2018-01-10  David Malcolm  <dmalcolm@redhat.com>
13079
13080         PR c++/43486
13081         * tree-core.h: Document EXPR_LOCATION_WRAPPER_P's usage of
13082         "public_flag".
13083         * tree.c (tree_nop_conversion): Return true for location wrapper
13084         nodes.
13085         (maybe_wrap_with_location): New function.
13086         (selftest::check_strip_nops): New function.
13087         (selftest::test_location_wrappers): New function.
13088         (selftest::tree_c_tests): Call it.
13089         * tree.h (STRIP_ANY_LOCATION_WRAPPER): New macro.
13090         (maybe_wrap_with_location): New decl.
13091         (EXPR_LOCATION_WRAPPER_P): New macro.
13092         (location_wrapper_p): New inline function.
13093         (tree_strip_any_location_wrapper): New inline function.
13094
13095 2018-01-10  H.J. Lu  <hongjiu.lu@intel.com>
13096
13097         PR target/83735
13098         * config/i386/i386.c (ix86_compute_frame_layout): Always adjust
13099         stack_realign_offset for the largest alignment of stack slot
13100         actually used.
13101         (ix86_find_max_used_stack_alignment): New function.
13102         (ix86_finalize_stack_frame_flags): Use it.  Set
13103         max_used_stack_alignment if we don't realign stack.
13104         * config/i386/i386.h (machine_function): Add
13105         max_used_stack_alignment.
13106
13107 2018-01-10  Christophe Lyon  <christophe.lyon@linaro.org>
13108
13109         * config/arm/arm.opt (-mbranch-cost): New option.
13110         * config/arm/arm.h (BRANCH_COST): Take arm_branch_cost into
13111         account.
13112
13113 2018-01-10  Segher Boessenkool  <segher@kernel.crashing.org>
13114
13115         PR target/83629
13116         * config/rs6000/rs6000.md (load_toc_v4_PIC_2, load_toc_v4_PIC_3b,
13117         load_toc_v4_PIC_3c): Wrap const term in CONST RTL.
13118
13119 2018-01-10  Richard Biener  <rguenther@suse.de>
13120
13121         PR debug/83765
13122         * dwarf2out.c (gen_subprogram_die): Hoist old_die && declaration
13123         early out so it also covers the case where we have a non-NULL
13124         origin.
13125
13126 2018-01-10  Richard Sandiford  <richard.sandiford@linaro.org>
13127
13128         PR tree-optimization/83753
13129         * tree-vect-stmts.c (get_group_load_store_type): Use VMAT_CONTIGUOUS
13130         for non-strided grouped accesses if the number of elements is 1.
13131
13132 2018-01-10  Jan Hubicka  <hubicka@ucw.cz>
13133
13134         PR target/81616
13135         * i386.c (ix86_vectorize_builtin_gather): Check TARGET_USE_GATHER.
13136         * i386.h (TARGET_USE_GATHER): Define.
13137         * x86-tune.def (X86_TUNE_USE_GATHER): New.
13138
13139 2018-01-10  Martin Liska  <mliska@suse.cz>
13140
13141         PR bootstrap/82831
13142         * basic-block.h (CLEANUP_NO_PARTITIONING): New define.
13143         * bb-reorder.c (pass_reorder_blocks::execute): Do not clean up
13144         partitioning.
13145         * cfgcleanup.c (try_optimize_cfg): Fix up partitioning if
13146         CLEANUP_NO_PARTITIONING is not set.
13147
13148 2018-01-10  Richard Sandiford  <richard.sandiford@linaro.org>
13149
13150         * doc/rtl.texi: Remove documentation of (const ...) wrappers
13151         for vectors, as a partial revert of r254296.
13152         * rtl.h (const_vec_p): Delete.
13153         (const_vec_duplicate_p): Don't test for vector CONSTs.
13154         (unwrap_const_vec_duplicate, const_vec_series_p): Likewise.
13155         * expmed.c (make_tree): Likewise.
13156
13157         Revert:
13158         * common.md (E, F): Use CONSTANT_P instead of checking for
13159         CONST_VECTOR.
13160         * emit-rtl.c (gen_lowpart_common): Use const_vec_p instead of
13161         checking for CONST_VECTOR.
13162
13163 2018-01-09  Jan Hubicka  <hubicka@ucw.cz>
13164
13165         PR middle-end/83575
13166         * predict.c (force_edge_cold): Handle in more sane way edges
13167         with no prediction.
13168
13169 2018-01-09  Carl Love  <cel@us.ibm.com>
13170
13171         * config/rs6002/altivec.md (p8_vmrgow): Add support for V2DI, V2DF,
13172         V4SI, V4SF types.
13173         (p8_vmrgew): Add support for V2DI, V2DF, V4SF types.
13174         * config/rs6000/rs6000-builtin.def: Add definitions for FLOAT2_V2DF,
13175         VMRGEW_V2DI, VMRGEW_V2DF, VMRGEW_V4SF, VMRGOW_V4SI, VMRGOW_V4SF,
13176         VMRGOW_V2DI, VMRGOW_V2DF.  Remove definition for VMRGOW.
13177         * config/rs6000/rs6000-c.c (VSX_BUILTIN_VEC_FLOAT2,
13178         P8V_BUILTIN_VEC_VMRGEW, P8V_BUILTIN_VEC_VMRGOW):  Add definitions.
13179         * config/rs6000/rs6000-protos.h: Add extern defition for
13180         rs6000_generate_float2_double_code.
13181         * config/rs6000/rs6000.c (rs6000_generate_float2_double_code): Add
13182         function.
13183         * config/rs6000/vsx.md (vsx_xvcdpsp): Add define_insn.
13184         (float2_v2df): Add define_expand.
13185
13186 2018-01-09  Uros Bizjak  <ubizjak@gmail.com>
13187
13188         PR target/83628
13189         * combine.c (force_int_to_mode) <case ASHIFT>: Use mode instead of
13190         op_mode in the force_to_mode call.
13191
13192 2018-01-09  Richard Sandiford  <richard.sandiford@linaro.org>
13193
13194         * config/aarch64/aarch64.c (aarch64_evpc_trn): Use d.perm.series_p
13195         instead of checking each element individually.
13196         (aarch64_evpc_uzp): Likewise.
13197         (aarch64_evpc_zip): Likewise.
13198         (aarch64_evpc_ext): Likewise.
13199         (aarch64_evpc_rev): Likewise.
13200         (aarch64_evpc_dup): Test the encoding for a single duplicated element,
13201         instead of checking each element individually.  Return true without
13202         generating rtl if
13203         (aarch64_vectorize_vec_perm_const): Use all_from_input_p to test
13204         whether all selected elements come from the same input, instead of
13205         checking each element individually.  Remove calls to gen_rtx_REG,
13206         start_sequence and end_sequence and instead assert that no rtl is
13207         generated.
13208
13209 2018-01-09  Richard Sandiford  <richard.sandiford@linaro.org>
13210
13211         * config/aarch64/aarch64.c (aarch64_legitimate_constant_p): Fix
13212         order of HIGH and CONST checks.
13213
13214 2018-01-09  Richard Sandiford  <richard.sandiford@linaro.org>
13215
13216         * tree-vect-stmts.c (permute_vec_elements): Create a fresh variable
13217         if the destination isn't an SSA_NAME.
13218
13219 2018-01-09  Richard Biener  <rguenther@suse.de>
13220
13221         PR tree-optimization/83668
13222         * graphite.c (canonicalize_loop_closed_ssa): Add edge argument,
13223         move prologue...
13224         (canonicalize_loop_form): ... here, renamed from ...
13225         (canonicalize_loop_closed_ssa_form): ... this and amended to
13226         swap successor edges for loop exit blocks to make us use
13227         the RPO order we need for initial schedule generation.
13228
13229 2018-01-09  Joseph Myers  <joseph@codesourcery.com>
13230
13231         PR tree-optimization/64811
13232         * match.pd: When optimizing comparisons with Inf, avoid
13233         introducing or losing exceptions from comparisons with NaN.
13234
13235 2018-01-09  Martin Liska  <mliska@suse.cz>
13236
13237         PR sanitizer/82517
13238         * asan.c (shadow_mem_size): Add gcc_assert.
13239
13240 2018-01-09  Georg-Johann Lay  <avr@gjlay.de>
13241
13242         Don't save registers in main().
13243
13244         PR target/83738
13245         * doc/invoke.texi (AVR Options) [-mmain-is-OS_task]: Document it.
13246         * config/avr/avr.opt (-mmain-is-OS_task): New target option.
13247         * config/avr/avr.c (avr_set_current_function): Don't error if
13248         naked, OS_task or OS_main are specified at the same time.
13249         (avr_function_ok_for_sibcall): Don't disable sibcalls for OS_task,
13250         OS_main.
13251         (avr_insert_attributes) [-mmain-is-OS_task] <main>: Add OS_task
13252         attribute.
13253         * common/config/avr/avr-common.c (avr_option_optimization_table):
13254         Switch on -mmain-is-OS_task for optimizing compilations.
13255
13256 2018-01-09  Richard Biener  <rguenther@suse.de>
13257
13258         PR tree-optimization/83572
13259         * graphite.c: Include cfganal.h.
13260         (graphite_transform_loops): Connect infinite loops to exit
13261         and remove fake edges at the end.
13262
13263 2018-01-09  Jan Hubicka  <hubicka@ucw.cz>
13264
13265         * ipa-inline.c (edge_badness): Revert accidental checkin.
13266
13267 2018-01-09  Jan Hubicka  <hubicka@ucw.cz>
13268
13269         PR ipa/80763
13270         * ipa-comdats.c (set_comdat_group): Only set comdat group of real
13271         symbols; not inline clones.
13272
13273 2018-01-09  Jakub Jelinek  <jakub@redhat.com>
13274
13275         PR target/83507
13276         * modulo-sched.c (schedule_reg_moves): Punt if we'd need to move
13277         hard registers.  Formatting fixes.
13278
13279         PR preprocessor/83722
13280         * gcc.c (try_generate_repro): Pass
13281         &temp_stderr_files[RETRY_ICE_ATTEMPTS - 1] rather than
13282         &temp_stdout_files[RETRY_ICE_ATTEMPTS - 1] as last argument to
13283         do_report_bug.
13284
13285 2018-01-08  Monk Chiang  <sh.chiang04@gmail.com>
13286             Kito Cheng  <kito.cheng@gmail.com>
13287
13288         * config/riscv/riscv.c (machine_function::is_leaf): Remove field.
13289         (riscv_leaf_function_p): Delete.
13290         (riscv_function_ok_for_sibcall): Return false when TARGET_SAVE_RESTORE.
13291
13292 2018-01-08  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
13293
13294         * config/rs6000/rs6000-string.c (do_load_for_compare_from_addr): New
13295         function.
13296         (do_ifelse): New function.
13297         (do_isel): New function.
13298         (do_sub3): New function.
13299         (do_add3): New function.
13300         (do_load_mask_compare): New function.
13301         (do_overlap_load_compare): New function.
13302         (expand_compare_loop): New function.
13303         (expand_block_compare): Call expand_compare_loop() when appropriate.
13304         * config/rs6000/rs6000.opt (-mblock-compare-inline-limit): Change
13305         option description.
13306         (-mblock-compare-inline-loop-limit): New option.
13307
13308 2018-01-08  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
13309
13310         PR target/83677
13311         * config/rs6000/altivec.md (*altivec_vpermr_<mode>_internal):
13312         Reverse order of second and third operands in first alternative.
13313         * config/rs6000/rs6000.c (rs6000_expand_vector_set): Reverse order
13314         of first and second elements in UNSPEC_VPERMR vector.
13315         (altivec_expand_vec_perm_le): Likewise.
13316
13317 2018-01-08  Jeff Law  <law@redhat.com>
13318
13319         PR rtl-optimizatin/81308
13320         * tree-switch-conversion.c (cfg_altered): New file scoped static.
13321         (process_switch): If group_case_labels makes a change, then set
13322         cfg_altered.
13323         (pass_convert_switch::execute): If a switch is converted, then
13324         set cfg_altered.  Return TODO_cfg_cleanup if cfg_altered is true.
13325
13326         PR rtl-optimization/81308
13327         * recog.c (split_all_insns): Conditionally cleanup the CFG after
13328         splitting insns.
13329
13330 2018-01-08  Vidya Praveen  <vidyapraveen@arm.com>
13331
13332         PR target/83663 - Revert r255946
13333         * config/aarch64/aarch64.c (aarch64_expand_vector_init): Modify code
13334         generation for cases where splatting a value is not useful.
13335         * simplify-rtx.c (simplify_ternary_operation): Simplify vec_merge
13336         across a vec_duplicate and a paradoxical subreg forming a vector
13337         mode to a vec_concat.
13338
13339 2018-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
13340
13341         * config/arm/t-aprofile (MULTILIB_MATCHES): Add mapping rules for
13342         -march=armv8.3-a variants.
13343         * config/arm/t-multilib: Likewise.
13344         * config/arm/t-arm-elf: Likewise.  Handle dotprod extension.
13345
13346 2018-01-08  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
13347
13348         * config/rs6000/rs6000.md (cceq_ior_compare): Remove * so I can use it
13349         to generate rtl.
13350         (cceq_ior_compare_complement): Give it a name so I can use it, and
13351         change boolean_or_operator predicate to boolean_operator so it can
13352         be used to generate a crand.
13353         (eqne): New code iterator.
13354         (bd/bd_neg): New code_attrs.
13355         (<bd>_<mode>): New name for ctr<mode>_internal[12] now combined into
13356         a single define_insn.
13357         (<bd>tf_<mode>): A new insn pattern for the conditional form branch
13358         decrement (bdnzt/bdnzf/bdzt/bdzf).
13359         * config/rs6000/rs6000.c (rs6000_legitimate_combined_insn): Updated
13360         with the new names of the branch decrement patterns, and added the
13361         names of the branch decrement conditional patterns.
13362
13363 2018-01-08  Richard Biener  <rguenther@suse.de>
13364
13365         PR tree-optimization/83563
13366         * graphite.c (canonicalize_loop_closed_ssa_form): Reset the SCEV
13367         cache.
13368
13369 2018-01-08  Richard Biener  <rguenther@suse.de>
13370
13371         PR middle-end/83713
13372         * convert.c (do_narrow): Properly guard TYPE_OVERFLOW_WRAPS checks.
13373
13374 2018-01-08  Richard Biener  <rguenther@suse.de>
13375
13376         PR tree-optimization/83685
13377         * tree-ssa-pre.c (create_expression_by_pieces): Do not insert
13378         references to abnormals.
13379
13380 2018-01-08  Richard Biener  <rguenther@suse.de>
13381
13382         PR lto/83719
13383         * dwarf2out.c (output_indirect_strings): Handle empty
13384         skeleton_debug_str_hash.
13385         (dwarf2out_early_finish): Index strings for -gsplit-dwarf.
13386
13387 2018-01-08  Claudiu Zissulescu  <claziss@synopsys.com>
13388
13389         * config/arc/arc.c (TARGET_TRAMPOLINE_ADJUST_ADDRESS): Delete.
13390         (emit_store_direct): Likewise.
13391         (arc_trampoline_adjust_address): Likewise.
13392         (arc_asm_trampoline_template): New function.
13393         (arc_initialize_trampoline): Use asm_trampoline_template.
13394         (TARGET_ASM_TRAMPOLINE_TEMPLATE): Define.
13395         * config/arc/arc.h (TRAMPOLINE_SIZE): Adjust to 16.
13396         * config/arc/arc.md (flush_icache): Delete pattern.
13397
13398 2018-01-08  Claudiu Zissulescu  <claziss@synopsys.com>
13399
13400         * config/arc/arc-c.def (__ARC_UNALIGNED__): New define.
13401         * config/arc/arc.h (STRICT_ALIGNMENT): Control this macro using
13402         munaligned-access.
13403
13404 2018-01-08  Sebastian Huber  <sebastian.huber@embedded-brains.de>
13405
13406         PR target/83681
13407         * config/epiphany/epiphany.h (make_pass_mode_switch_use): Guard
13408         by not USED_FOR_TARGET.
13409         (make_pass_resolve_sw_modes): Likewise.
13410
13411 2018-01-08  Sebastian Huber  <sebastian.huber@embedded-brains.de>
13412
13413         * config/nios2/nios2.h (nios2_section_threshold): Guard by not
13414         USED_FOR_TARGET.
13415
13416 2018-01-08  Richard Biener  <rguenther@suse.de>
13417
13418         PR middle-end/83580
13419         * tree-data-ref.c (split_constant_offset): Remove STRIP_NOPS.
13420
13421 2018-01-08  Richard Biener  <rguenther@suse.de>
13422
13423         PR middle-end/83517
13424         * match.pd ((t * 2) / 2) -> t): Add missing :c.
13425
13426 2018-01-06  Aldy Hernandez  <aldyh@redhat.com>
13427
13428         PR middle-end/81897
13429         * tree-ssa-uninit.c (compute_control_dep_chain): Do not bail on
13430         basic blocks with a small number of successors.
13431         (convert_control_dep_chain_into_preds): Improve handling of
13432         forwarder blocks.
13433         (dump_predicates): Split apart into...
13434         (dump_pred_chain): ...here...
13435         (dump_pred_info): ...and here.
13436         (can_one_predicate_be_invalidated_p): Add debugging printfs.
13437         (can_chain_union_be_invalidated_p): Improve check for invalidation
13438         of paths.
13439         (uninit_uses_cannot_happen): Avoid unnecessary if
13440         convert_control_dep_chain_into_preds yielded nothing.
13441
13442 2018-01-06  Martin Sebor  <msebor@redhat.com>
13443
13444         PR tree-optimization/83640
13445         * gimple-ssa-warn-restrict.c (builtin_access::builtin_access): Avoid
13446         subtracting negative offset from size.
13447         (builtin_access::overlap): Adjust offset bounds of the access to fall
13448         within the size of the object if possible.
13449
13450 2018-01-06  Richard Sandiford  <richard.sandiford@linaro.org>
13451
13452         PR rtl-optimization/83699
13453         * expmed.c (extract_bit_field_1): Restrict the vector usage of
13454         extract_bit_field_as_subreg to cases in which the extracted
13455         value is also a vector.
13456
13457         * lra-constraints.c (process_alt_operands): Test for the equivalence
13458         substitutions when detecting a possible reload cycle.
13459
13460 2018-01-06  Jakub Jelinek  <jakub@redhat.com>
13461
13462         PR debug/83480
13463         * toplev.c (process_options): Don't enable debug_nonbind_markers_p
13464         by default if flag_selective_schedling{,2}.  Formatting fixes.
13465
13466         PR rtl-optimization/83682
13467         * rtl.h (const_vec_duplicate_p): Only return true for VEC_DUPLICATE
13468         if it has non-VECTOR_MODE element mode.
13469         (vec_duplicate_p): Likewise.
13470
13471         PR middle-end/83694
13472         * cfgexpand.c (expand_debug_expr): Punt if mode1 is VOIDmode
13473         and bitsize might be greater than MAX_BITSIZE_MODE_ANY_INT.
13474
13475 2018-01-05  Jakub Jelinek  <jakub@redhat.com>
13476
13477         PR target/83604
13478         * config/i386/i386-builtin.def
13479         (__builtin_ia32_vgf2p8affineinvqb_v64qi,
13480         __builtin_ia32_vgf2p8affineqb_v64qi, __builtin_ia32_vgf2p8mulb_v64qi):
13481         Require also OPTION_MASK_ISA_AVX512F in addition to
13482         OPTION_MASK_ISA_GFNI.
13483         (__builtin_ia32_vgf2p8affineinvqb_v16qi_mask,
13484         __builtin_ia32_vgf2p8affineqb_v16qi_mask): Require
13485         OPTION_MASK_ISA_AVX512VL instead of OPTION_MASK_ISA_SSE in addition
13486         to OPTION_MASK_ISA_GFNI.
13487         (__builtin_ia32_vgf2p8mulb_v32qi_mask): Require
13488         OPTION_MASK_ISA_AVX512VL in addition to OPTION_MASK_ISA_GFNI and
13489         OPTION_MASK_ISA_AVX512BW.
13490         (__builtin_ia32_vgf2p8mulb_v16qi_mask): Require
13491         OPTION_MASK_ISA_AVX512VL instead of OPTION_MASK_ISA_AVX512BW in
13492         addition to OPTION_MASK_ISA_GFNI.
13493         (__builtin_ia32_vgf2p8affineinvqb_v16qi,
13494         __builtin_ia32_vgf2p8affineqb_v16qi, __builtin_ia32_vgf2p8mulb_v16qi):
13495         Require OPTION_MASK_ISA_SSE2 instead of OPTION_MASK_ISA_SSE in addition
13496         to OPTION_MASK_ISA_GFNI.
13497         * config/i386/i386.c (def_builtin): Change to builtin isa/isa2 being
13498         a requirement for all ISAs rather than any of them with a few
13499         exceptions.
13500         (ix86_add_new_builtins): Clear OPTION_MASK_ISA_64BIT from isa before
13501         processing.
13502         (ix86_expand_builtin): Require all ISAs from builtin's isa and isa2
13503         bitmasks to be enabled with 3 exceptions, instead of requiring any
13504         enabled ISA with lots of exceptions.
13505         * config/i386/sse.md (vgf2p8affineinvqb_<mode><mask_name>,
13506         vgf2p8affineqb_<mode><mask_name>, vgf2p8mulb_<mode><mask_name>):
13507         Change avx512bw in isa attribute to avx512f.
13508         * config/i386/sgxintrin.h: Add license boilerplate.
13509         * config/i386/vaesintrin.h: Likewise.  Fix macro spelling __AVX512F
13510         to __AVX512F__ and __AVX512VL to __AVX512VL__.
13511         (_mm256_aesdec_epi128, _mm256_aesdeclast_epi128, _mm256_aesenc_epi128,
13512         _mm256_aesenclast_epi128): Enable temporarily avx if __AVX__ is not
13513         defined.
13514         * config/i386/gfniintrin.h (_mm_gf2p8mul_epi8,
13515         _mm_gf2p8affineinv_epi64_epi8, _mm_gf2p8affine_epi64_epi8): Enable
13516         temporarily sse2 rather than sse if not enabled already.
13517
13518         PR target/83604
13519         * config/i386/sse.md (VI248_VLBW): Rename to ...
13520         (VI248_AVX512VL): ... this.  Don't guard V32HI with TARGET_AVX512BW.
13521         (vpshrd_<mode><mask_name>, vpshld_<mode><mask_name>,
13522         vpshrdv_<mode>, vpshrdv_<mode>_mask, vpshrdv_<mode>_maskz,
13523         vpshrdv_<mode>_maskz_1, vpshldv_<mode>, vpshldv_<mode>_mask,
13524         vpshldv_<mode>_maskz, vpshldv_<mode>_maskz_1): Use VI248_AVX512VL
13525         mode iterator instead of VI248_VLBW.
13526
13527 2018-01-05  Jan Hubicka  <hubicka@ucw.cz>
13528
13529         * ipa-fnsummary.c (record_modified_bb_info): Add OP.
13530         (record_modified): Skip clobbers; add debug output.
13531         (param_change_prob): Use sreal frequencies.
13532
13533 2018-01-05  Richard Sandiford  <richard.sandiford@linaro.org>
13534
13535         * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Don't
13536         punt for user-aligned variables.
13537
13538 2018-01-05  Richard Sandiford  <richard.sandiford@linaro.org>
13539
13540         * tree-chrec.c (chrec_contains_symbols): Return true for
13541         POLY_INT_CST.
13542
13543 2018-01-05  Sudakshina Das  <sudi.das@arm.com>
13544
13545         PR target/82439
13546         * simplify-rtx.c (simplify_relational_operation_1): Add simplifications
13547         of (x|y) == x for BICS pattern.
13548
13549 2018-01-05  Jakub Jelinek  <jakub@redhat.com>
13550
13551         PR tree-optimization/83605
13552         * gimple-ssa-strength-reduction.c: Include tree-eh.h.
13553         (find_candidates_dom_walker::before_dom_children): Ignore stmts that
13554         can throw.
13555
13556 2018-01-05  Sebastian Huber  <sebastian.huber@embedded-brains.de>
13557
13558         * config.gcc (epiphany-*-elf*): Add (epiphany-*-rtems*) configuration.
13559         * config/epiphany/rtems.h: New file.
13560
13561 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
13562             Uros Bizjak  <ubizjak@gmail.com>
13563
13564         PR target/83554
13565         * config/i386/i386.md (*<rotate_insn>hi3_1 splitter): Use
13566         QIreg_operand instead of register_operand predicate.
13567         * config/i386/i386.c (ix86_rop_should_change_byte_p,
13568         set_rop_modrm_reg_bits, ix86_mitigate_rop): Use -mmitigate-rop in
13569         comments instead of -fmitigate[-_]rop.
13570
13571 2018-01-04  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
13572
13573         PR bootstrap/81926
13574         * cgraphunit.c (symbol_table::compile): Switch to text_section
13575         before calling assembly_start debug hook.
13576         * run-rtl-passes.c (run_rtl_passes): Likewise.
13577         Include output.h.
13578
13579 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
13580
13581         * tree-vrp.c (extract_range_from_binary_expr_1): Check
13582         range_int_cst_p rather than !symbolic_range_p before calling
13583         extract_range_from_multiplicative_op_1.
13584
13585 2018-01-04  Jeff Law  <law@redhat.com>
13586
13587         * tree-ssa-math-opts.c (execute_cse_reciprocals_1): Remove
13588         redundant test in assertion.
13589
13590 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
13591
13592         * doc/rtl.texi: Document machine_mode wrapper classes.
13593
13594 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
13595
13596         * fold-const.c (fold_ternary_loc): Check tree_fits_uhwi_p before
13597         using tree_to_uhwi.
13598
13599 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
13600
13601         * tree-ssa-forwprop.c (is_combined_permutation_identity): Allow
13602         the VEC_PERM_EXPR fold to fail.
13603
13604 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
13605
13606         PR debug/83585
13607         * bb-reorder.c (insert_section_boundary_note): Set has_bb_partition
13608         to switched_sections.
13609
13610 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
13611
13612         PR target/83680
13613         * config/arm/arm.c (arm_vectorize_vec_perm_const): Fix inverted
13614         test for d.testing.
13615
13616 2018-01-04  Peter Bergner  <bergner@vnet.ibm.com>
13617
13618         PR target/83387
13619         * config/rs6000/rs6000.c (rs6000_discover_homogeneous_aggregate): Do not
13620         allow arguments in FP registers if TARGET_HARD_FLOAT is false.
13621
13622 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
13623
13624         PR debug/83666
13625         * cfgexpand.c (expand_debug_expr) <case BIT_FIELD_REF>: Punt if mode
13626         is BLKmode and bitpos not zero or mode change is needed.
13627
13628 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
13629
13630         PR target/83675
13631         * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): Require
13632         TARGET_VIS2.
13633
13634 2018-01-04  Uros Bizjak  <ubizjak@gmail.com>
13635
13636         PR target/83628
13637         * config/alpha/alpha.md (*sadd<modesuffix>): Use ASHIFT
13638         instead of MULT rtx.  Update all corresponding splitters.
13639         (*saddl_se): Ditto.
13640         (*ssub<modesuffix>): Ditto.
13641         (*ssubl_se): Ditto.
13642         (*cmp_sadd_di): Update split patterns.
13643         (*cmp_sadd_si): Ditto.
13644         (*cmp_sadd_sidi): Ditto.
13645         (*cmp_ssub_di): Ditto.
13646         (*cmp_ssub_si): Ditto.
13647         (*cmp_ssub_sidi): Ditto.
13648         * config/alpha/predicates.md (const23_operand): New predicate.
13649         * config/alpha/alpha.c (alpha_rtx_costs) [PLUS, MINUS]:
13650         Look for ASHIFT, not MULT inner operand.
13651         (alpha_split_conditional_move): Update for *sadd<modesuffix> change.
13652
13653 2018-01-04  Martin Liska  <mliska@suse.cz>
13654
13655         PR gcov-profile/83669
13656         * gcov.c (output_intermediate_file): Add version to intermediate
13657         gcov file.
13658         * doc/gcov.texi: Document new field 'version' in intermediate
13659         file format. Fix location of '-k' option of gcov command.
13660
13661 2018-01-04  Martin Liska  <mliska@suse.cz>
13662
13663         PR ipa/82352
13664         * ipa-icf.c (sem_function::merge): Do not cross comdat boundary.
13665
13666 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
13667
13668         * gimple-ssa-sprintf.c (parse_directive): Cast second dir.len to uhwi.
13669
13670 2018-01-03  Martin Sebor  <msebor@redhat.com>
13671
13672         PR tree-optimization/83655
13673         * gimple-ssa-warn-restrict.c (wrestrict_dom_walker::check_call): Avoid
13674         checking calls with invalid arguments.
13675
13676 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13677
13678         * tree-vect-stmts.c (vect_get_store_rhs): New function.
13679         (vectorizable_mask_load_store): Delete.
13680         (vectorizable_call): Return false for masked loads and stores.
13681         (vectorizable_store): Handle IFN_MASK_STORE.  Use vect_get_store_rhs
13682         instead of gimple_assign_rhs1.
13683         (vectorizable_load): Handle IFN_MASK_LOAD.
13684         (vect_transform_stmt): Don't set is_store for call_vec_info_type.
13685
13686 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13687
13688         * tree-vect-stmts.c (vect_build_gather_load_calls): New function,
13689         split out from..,
13690         (vectorizable_mask_load_store): ...here.
13691         (vectorizable_load): ...and here.
13692
13693 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13694
13695         * tree-vect-stmts.c (vect_build_all_ones_mask)
13696         (vect_build_zero_merge_argument): New functions, split out from...
13697         (vectorizable_load): ...here.
13698
13699 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13700
13701         * tree-vect-stmts.c (vect_check_store_rhs): New function,
13702         split out from...
13703         (vectorizable_mask_load_store): ...here.
13704         (vectorizable_store): ...and here.
13705
13706 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13707
13708         * tree-vect-stmts.c (vect_check_load_store_mask): New function,
13709         split out from...
13710         (vectorizable_mask_load_store): ...here.
13711
13712 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13713
13714         * tree-vectorizer.h (vec_load_store_type): Moved from tree-vec-stmts.c
13715         (vect_model_store_cost): Take a vec_load_store_type instead of a
13716         vect_def_type.
13717         * tree-vect-stmts.c (vec_load_store_type): Move to tree-vectorizer.h.
13718         (vect_model_store_cost): Take a vec_load_store_type instead of a
13719         vect_def_type.
13720         (vectorizable_mask_load_store): Update accordingly.
13721         (vectorizable_store): Likewise.
13722         * tree-vect-slp.c (vect_analyze_slp_cost_1): Update accordingly.
13723
13724 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13725
13726         * tree-vect-loop.c (vect_transform_loop): Stub out scalar
13727         IFN_MASK_LOAD calls here rather than...
13728         * tree-vect-stmts.c (vectorizable_mask_load_store): ...here.
13729
13730 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13731             Alan Hayward  <alan.hayward@arm.com>
13732             David Sherwood  <david.sherwood@arm.com>
13733
13734         * expmed.c (extract_bit_field_1): For vector extracts,
13735         fall back to extract_bit_field_as_subreg if vec_extract
13736         isn't available.
13737
13738 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13739             Alan Hayward  <alan.hayward@arm.com>
13740             David Sherwood  <david.sherwood@arm.com>
13741
13742         * lra-spills.c (pseudo_reg_slot_compare): Sort slots by whether
13743         they are variable or constant sized.
13744         (assign_stack_slot_num_and_sort_pseudos): Don't reuse variable-sized
13745         slots for constant-sized data.
13746
13747 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13748             Alan Hayward  <alan.hayward@arm.com>
13749             David Sherwood  <david.sherwood@arm.com>
13750
13751         * tree-vect-patterns.c (vect_recog_mask_conversion_pattern): When
13752         handling COND_EXPRs with boolean comparisons, try to find a better
13753         basis for the mask type than the boolean itself.
13754
13755 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13756
13757         * doc/rtl.texi (MAX_BITSIZE_MODE_ANY_MODE): Describe how the default
13758         is calculated and how it can be overridden.
13759         * genmodes.c (max_bitsize_mode_any_mode): New variable.
13760         (create_modes): Initialize it from MAX_BITSIZE_MODE_ANY_MODE,
13761         if defined.
13762         (emit_max_int): Use it to set the output MAX_BITSIZE_MODE_ANY_MODE,
13763         if nonzero.
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         * config/aarch64/aarch64-protos.h (aarch64_output_simd_mov_immediate):
13770         Remove the mode argument.
13771         (aarch64_simd_valid_immediate): Remove the mode and inverse
13772         arguments.
13773         * config/aarch64/iterators.md (bitsize): New iterator.
13774         * config/aarch64/aarch64-simd.md (*aarch64_simd_mov<mode>, and<mode>3)
13775         (ior<mode>3): Update calls to aarch64_output_simd_mov_immediate.
13776         * config/aarch64/constraints.md (Do, Db, Dn): Update calls to
13777         aarch64_simd_valid_immediate.
13778         * config/aarch64/predicates.md (aarch64_reg_or_orr_imm): Likewise.
13779         (aarch64_reg_or_bic_imm): Likewise.
13780         * config/aarch64/aarch64.c (simd_immediate_info): Replace mvn
13781         with an insn_type enum and msl with a modifier_type enum.
13782         Replace element_width with a scalar_mode.  Change the shift
13783         to unsigned int.  Add constructors for scalar_float_mode and
13784         scalar_int_mode elements.
13785         (aarch64_vect_float_const_representable_p): Delete.
13786         (aarch64_can_const_movi_rtx_p)
13787         (aarch64_simd_scalar_immediate_valid_for_move)
13788         (aarch64_simd_make_constant): Update call to
13789         aarch64_simd_valid_immediate.
13790         (aarch64_advsimd_valid_immediate_hs): New function.
13791         (aarch64_advsimd_valid_immediate): Likewise.
13792         (aarch64_simd_valid_immediate): Remove mode and inverse
13793         arguments.  Rewrite to use the above.  Use const_vec_duplicate_p
13794         to detect duplicated constants and use aarch64_float_const_zero_rtx_p
13795         and aarch64_float_const_representable_p on the result.
13796         (aarch64_output_simd_mov_immediate): Remove mode argument.
13797         Update call to aarch64_simd_valid_immediate and use of
13798         simd_immediate_info.
13799         (aarch64_output_scalar_simd_mov_immediate): Update call
13800         accordingly.
13801
13802 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13803             Alan Hayward  <alan.hayward@arm.com>
13804             David Sherwood  <david.sherwood@arm.com>
13805
13806         * machmode.h (mode_precision): Prefix with CONST_MODE_PRECISION.
13807         (mode_nunits): Likewise CONST_MODE_NUNITS.
13808         * machmode.def (ADJUST_NUNITS): Document.
13809         * genmodes.c (mode_data::need_nunits_adj): New field.
13810         (blank_mode): Update accordingly.
13811         (adj_nunits): New variable.
13812         (print_maybe_const_decl): Replace CATEGORY with a NEEDS_ADJ
13813         parameter.
13814         (emit_mode_size_inline): Set need_bytesize_adj for all modes
13815         listed in adj_nunits.
13816         (emit_mode_nunits_inline): Set need_nunits_adj for all modes
13817         listed in adj_nunits.  Don't emit case statements for such modes.
13818         (emit_insn_modes_h): Emit definitions of CONST_MODE_NUNITS
13819         and CONST_MODE_PRECISION.  Make CONST_MODE_SIZE expand to
13820         nothing if adj_nunits is nonnull.
13821         (emit_mode_precision, emit_mode_nunits): Use print_maybe_const_decl.
13822         (emit_mode_unit_size, emit_mode_base_align, emit_mode_ibit)
13823         (emit_mode_fbit): Update use of print_maybe_const_decl.
13824         (emit_move_size): Likewise.  Treat the array as non-const
13825         if adj_nunits.
13826         (emit_mode_adjustments): Handle adj_nunits.
13827
13828 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13829
13830         * machmode.def (VECTOR_MODES_WITH_PREFIX): Document.
13831         * genmodes.c (VECTOR_MODES_WITH_PREFIX): New macro.
13832         (VECTOR_MODES): Use it.
13833         (make_vector_modes): Take the prefix as an argument.
13834
13835 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13836             Alan Hayward  <alan.hayward@arm.com>
13837             David Sherwood  <david.sherwood@arm.com>
13838
13839         * mode-classes.def (MODE_VECTOR_BOOL): New mode class.
13840         * machmode.h (INTEGRAL_MODE_P, VECTOR_MODE_P): Return true
13841         for MODE_VECTOR_BOOL.
13842         * machmode.def (VECTOR_BOOL_MODE): Document.
13843         * genmodes.c (VECTOR_BOOL_MODE): New macro.
13844         (make_vector_bool_mode): New function.
13845         (complete_mode, emit_mode_wider, emit_mode_adjustments): Handle
13846         MODE_VECTOR_BOOL.
13847         * lto-streamer-in.c (lto_input_mode_table): Likewise.
13848         * rtx-vector-builder.c (rtx_vector_builder::find_cached_value):
13849         Likewise.
13850         * stor-layout.c (int_mode_for_mode): Likewise.
13851         * tree.c (build_vector_type_for_mode): Likewise.
13852         * varasm.c (output_constant_pool_2): Likewise.
13853         * emit-rtl.c (init_emit_once): Make sure that CONST1_RTX (BImode) and
13854         CONSTM1_RTX (BImode) are the same thing.  Initialize const_tiny_rtx
13855         for MODE_VECTOR_BOOL.
13856         * expr.c (expand_expr_real_1): Use VECTOR_MODE_P instead of a list
13857         of mode class checks.
13858         * tree-vect-generic.c (expand_vector_operation): Use VECTOR_MODE_P
13859         instead of a list of mode class checks.
13860         (expand_vector_scalar_condition): Likewise.
13861         (type_for_widest_vector_mode): Handle BImode as an inner mode.
13862
13863 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13864             Alan Hayward  <alan.hayward@arm.com>
13865             David Sherwood  <david.sherwood@arm.com>
13866
13867         * machmode.h (mode_size): Change from unsigned short to
13868         poly_uint16_pod.
13869         (mode_to_bytes): Return a poly_uint16 rather than an unsigned short.
13870         (GET_MODE_SIZE): Return a constant if ONLY_FIXED_SIZE_MODES,
13871         or if measurement_type is not polynomial.
13872         (fixed_size_mode::includes_p): Check for constant-sized modes.
13873         * genmodes.c (emit_mode_size_inline): Make mode_size_inline
13874         return a poly_uint16 rather than an unsigned short.
13875         (emit_mode_size): Change the type of mode_size from unsigned short
13876         to poly_uint16_pod.  Use ZERO_COEFFS for the initializer.
13877         (emit_mode_adjustments): Cope with polynomial vector sizes.
13878         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
13879         for GET_MODE_SIZE.
13880         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
13881         for GET_MODE_SIZE.
13882         * auto-inc-dec.c (try_merge): Treat GET_MODE_SIZE as polynomial.
13883         * builtins.c (expand_ifn_atomic_compare_exchange_into_call): Likewise.
13884         * caller-save.c (setup_save_areas): Likewise.
13885         (replace_reg_with_saved_mem): Likewise.
13886         * calls.c (emit_library_call_value_1): Likewise.
13887         * combine-stack-adj.c (combine_stack_adjustments_for_block): Likewise.
13888         * combine.c (simplify_set, make_extraction, simplify_shift_const_1)
13889         (gen_lowpart_for_combine): Likewise.
13890         * convert.c (convert_to_integer_1): Likewise.
13891         * cse.c (equiv_constant, cse_insn): Likewise.
13892         * cselib.c (autoinc_split, cselib_hash_rtx): Likewise.
13893         (cselib_subst_to_values): Likewise.
13894         * dce.c (word_dce_process_block): Likewise.
13895         * df-problems.c (df_word_lr_mark_ref): Likewise.
13896         * dwarf2cfi.c (init_one_dwarf_reg_size): Likewise.
13897         * dwarf2out.c (multiple_reg_loc_descriptor, mem_loc_descriptor)
13898         (concat_loc_descriptor, concatn_loc_descriptor, loc_descriptor)
13899         (rtl_for_decl_location): Likewise.
13900         * emit-rtl.c (gen_highpart, widen_memory_access): Likewise.
13901         * expmed.c (extract_bit_field_1, extract_integral_bit_field): Likewise.
13902         * expr.c (emit_group_load_1, clear_storage_hints): Likewise.
13903         (emit_move_complex, emit_move_multi_word, emit_push_insn): Likewise.
13904         (expand_expr_real_1): Likewise.
13905         * function.c (assign_parm_setup_block_p, assign_parm_setup_block)
13906         (pad_below): Likewise.
13907         * gimple-fold.c (optimize_atomic_compare_exchange_p): Likewise.
13908         * gimple-ssa-store-merging.c (rhs_valid_for_store_merging_p): Likewise.
13909         * ira.c (get_subreg_tracking_sizes): Likewise.
13910         * ira-build.c (ira_create_allocno_objects): Likewise.
13911         * ira-color.c (coalesced_pseudo_reg_slot_compare): Likewise.
13912         (ira_sort_regnos_for_alter_reg): Likewise.
13913         * ira-costs.c (record_operand_costs): Likewise.
13914         * lower-subreg.c (interesting_mode_p, simplify_gen_subreg_concatn)
13915         (resolve_simple_move): Likewise.
13916         * lra-constraints.c (get_reload_reg, operands_match_p): Likewise.
13917         (process_addr_reg, simplify_operand_subreg, curr_insn_transform)
13918         (lra_constraints): Likewise.
13919         (CONST_POOL_OK_P): Reject variable-sized modes.
13920         * lra-spills.c (slot, assign_mem_slot, pseudo_reg_slot_compare)
13921         (add_pseudo_to_slot, lra_spill): Likewise.
13922         * omp-low.c (omp_clause_aligned_alignment): Likewise.
13923         * optabs-query.c (get_best_extraction_insn): Likewise.
13924         * optabs-tree.c (expand_vec_cond_expr_p): Likewise.
13925         * optabs.c (expand_vec_perm_var, expand_vec_cond_expr): Likewise.
13926         (expand_mult_highpart, valid_multiword_target_p): Likewise.
13927         * recog.c (offsettable_address_addr_space_p): Likewise.
13928         * regcprop.c (maybe_mode_change): Likewise.
13929         * reginfo.c (choose_hard_reg_mode, record_subregs_of_mode): Likewise.
13930         * regrename.c (build_def_use): Likewise.
13931         * regstat.c (dump_reg_info): Likewise.
13932         * reload.c (complex_word_subreg_p, push_reload, find_dummy_reload)
13933         (find_reloads, find_reloads_subreg_address): Likewise.
13934         * reload1.c (eliminate_regs_1): Likewise.
13935         * rtlanal.c (for_each_inc_dec_find_inc_dec, rtx_cost): Likewise.
13936         * simplify-rtx.c (avoid_constant_pool_reference): Likewise.
13937         (simplify_binary_operation_1, simplify_subreg): Likewise.
13938         * targhooks.c (default_function_arg_padding): Likewise.
13939         (default_hard_regno_nregs, default_class_max_nregs): Likewise.
13940         * tree-cfg.c (verify_gimple_assign_binary): Likewise.
13941         (verify_gimple_assign_ternary): Likewise.
13942         * tree-inline.c (estimate_move_cost): Likewise.
13943         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
13944         * tree-ssa-loop-ivopts.c (add_autoinc_candidates): Likewise.
13945         (get_address_cost_ainc): Likewise.
13946         * tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Likewise.
13947         (vect_supportable_dr_alignment): Likewise.
13948         * tree-vect-loop.c (vect_determine_vectorization_factor): Likewise.
13949         (vectorizable_reduction): Likewise.
13950         * tree-vect-stmts.c (vectorizable_assignment, vectorizable_shift)
13951         (vectorizable_operation, vectorizable_load): Likewise.
13952         * tree.c (build_same_sized_truth_vector_type): Likewise.
13953         * valtrack.c (cleanup_auto_inc_dec): Likewise.
13954         * var-tracking.c (emit_note_insn_var_location): Likewise.
13955         * config/arc/arc.h (ASM_OUTPUT_CASE_END): Use as_a <scalar_int_mode>.
13956         (ADDR_VEC_ALIGN): Likewise.
13957
13958 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13959             Alan Hayward  <alan.hayward@arm.com>
13960             David Sherwood  <david.sherwood@arm.com>
13961
13962         * machmode.h (mode_to_bits): Return a poly_uint16 rather than an
13963         unsigned short.
13964         (GET_MODE_BITSIZE): Return a constant if ONLY_FIXED_SIZE_MODES,
13965         or if measurement_type is polynomial.
13966         * calls.c (shift_return_value): Treat GET_MODE_BITSIZE as polynomial.
13967         * combine.c (make_extraction): Likewise.
13968         * dse.c (find_shift_sequence): Likewise.
13969         * dwarf2out.c (mem_loc_descriptor): Likewise.
13970         * expmed.c (store_integral_bit_field, extract_bit_field_1): Likewise.
13971         (extract_bit_field, extract_low_bits): Likewise.
13972         * expr.c (convert_move, convert_modes, emit_move_insn_1): Likewise.
13973         (optimize_bitfield_assignment_op, expand_assignment): Likewise.
13974         (store_expr_with_bounds, store_field, expand_expr_real_1): Likewise.
13975         * fold-const.c (optimize_bit_field_compare, merge_ranges): Likewise.
13976         * gimple-fold.c (optimize_atomic_compare_exchange_p): Likewise.
13977         * reload.c (find_reloads): Likewise.
13978         * reload1.c (alter_reg): Likewise.
13979         * stor-layout.c (bitwise_mode_for_mode, compute_record_mode): Likewise.
13980         * targhooks.c (default_secondary_memory_needed_mode): Likewise.
13981         * tree-if-conv.c (predicate_mem_writes): Likewise.
13982         * tree-ssa-strlen.c (handle_builtin_memcmp): Likewise.
13983         * tree-vect-patterns.c (adjust_bool_pattern): Likewise.
13984         * tree-vect-stmts.c (vectorizable_simd_clone_call): Likewise.
13985         * valtrack.c (dead_debug_insert_temp): Likewise.
13986         * varasm.c (mergeable_constant_section): Likewise.
13987         * config/sh/sh.h (LOCAL_ALIGNMENT): Use as_a <fixed_size_mode>.
13988
13989 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13990             Alan Hayward  <alan.hayward@arm.com>
13991             David Sherwood  <david.sherwood@arm.com>
13992
13993         * expr.c (expand_assignment): Cope with polynomial mode sizes
13994         when assigning to a CONCAT.
13995
13996 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
13997             Alan Hayward  <alan.hayward@arm.com>
13998             David Sherwood  <david.sherwood@arm.com>
13999
14000         * machmode.h (mode_precision): Change from unsigned short to
14001         poly_uint16_pod.
14002         (mode_to_precision): Return a poly_uint16 rather than an unsigned
14003         short.
14004         (GET_MODE_PRECISION): Return a constant if ONLY_FIXED_SIZE_MODES,
14005         or if measurement_type is not polynomial.
14006         (HWI_COMPUTABLE_MODE_P): Turn into a function.  Optimize the case
14007         in which the mode is already known to be a scalar_int_mode.
14008         * genmodes.c (emit_mode_precision): Change the type of mode_precision
14009         from unsigned short to poly_uint16_pod.  Use ZERO_COEFFS for the
14010         initializer.
14011         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
14012         for GET_MODE_PRECISION.
14013         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
14014         for GET_MODE_PRECISION.
14015         * combine.c (update_rsp_from_reg_equal): Treat GET_MODE_PRECISION
14016         as polynomial.
14017         (try_combine, find_split_point, combine_simplify_rtx): Likewise.
14018         (expand_field_assignment, make_extraction): Likewise.
14019         (make_compound_operation_int, record_dead_and_set_regs_1): Likewise.
14020         (get_last_value): Likewise.
14021         * convert.c (convert_to_integer_1): Likewise.
14022         * cse.c (cse_insn): Likewise.
14023         * expr.c (expand_expr_real_1): Likewise.
14024         * lra-constraints.c (simplify_operand_subreg): Likewise.
14025         * optabs-query.c (can_atomic_load_p): Likewise.
14026         * optabs.c (expand_atomic_load): Likewise.
14027         (expand_atomic_store): Likewise.
14028         * ree.c (combine_reaching_defs): Likewise.
14029         * rtl.h (partial_subreg_p, paradoxical_subreg_p): Likewise.
14030         * rtlanal.c (nonzero_bits1, lsb_bitfield_op_p): Likewise.
14031         * tree.h (type_has_mode_precision_p): Likewise.
14032         * ubsan.c (instrument_si_overflow): Likewise.
14033
14034 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14035             Alan Hayward  <alan.hayward@arm.com>
14036             David Sherwood  <david.sherwood@arm.com>
14037
14038         * tree.h (TYPE_VECTOR_SUBPARTS): Turn into a function and handle
14039         polynomial numbers of units.
14040         (SET_TYPE_VECTOR_SUBPARTS): Likewise.
14041         (valid_vector_subparts_p): New function.
14042         (build_vector_type): Remove temporary shim and take the number
14043         of units as a poly_uint64 rather than an int.
14044         (build_opaque_vector_type): Take the number of units as a
14045         poly_uint64 rather than an int.
14046         * tree.c (build_vector_from_ctor): Handle polynomial
14047         TYPE_VECTOR_SUBPARTS.
14048         (type_hash_canon_hash, type_cache_hasher::equal): Likewise.
14049         (uniform_vector_p, vector_type_mode, build_vector): Likewise.
14050         (build_vector_from_val): If the number of units is variable,
14051         use build_vec_duplicate_cst for constant operands and
14052         VEC_DUPLICATE_EXPR otherwise.
14053         (make_vector_type): Remove temporary is_constant ().
14054         (build_vector_type, build_opaque_vector_type): Take the number of
14055         units as a poly_uint64 rather than an int.
14056         (check_vector_cst): Handle polynomial TYPE_VECTOR_SUBPARTS and
14057         VECTOR_CST_NELTS.
14058         * cfgexpand.c (expand_debug_expr): Likewise.
14059         * expr.c (count_type_elements, categorize_ctor_elements_1): Likewise.
14060         (store_constructor, expand_expr_real_1): Likewise.
14061         (const_scalar_mask_from_tree): Likewise.
14062         * fold-const-call.c (fold_const_reduction): Likewise.
14063         * fold-const.c (const_binop, const_unop, fold_convert_const): Likewise.
14064         (operand_equal_p, fold_vec_perm, fold_ternary_loc): Likewise.
14065         (native_encode_vector, vec_cst_ctor_to_array): Likewise.
14066         (fold_relational_const): Likewise.
14067         (native_interpret_vector): Likewise.  Change the size from an
14068         int to an unsigned int.
14069         * gimple-fold.c (gimple_fold_stmt_to_constant_1): Handle polynomial
14070         TYPE_VECTOR_SUBPARTS.
14071         (gimple_fold_indirect_ref, gimple_build_vector): Likewise.
14072         (gimple_build_vector_from_val): Use VEC_DUPLICATE_EXPR when
14073         duplicating a non-constant operand into a variable-length vector.
14074         * hsa-brig.c (hsa_op_immed::emit_to_buffer): Handle polynomial
14075         TYPE_VECTOR_SUBPARTS and VECTOR_CST_NELTS.
14076         * ipa-icf.c (sem_variable::equals): Likewise.
14077         * match.pd: Likewise.
14078         * omp-simd-clone.c (simd_clone_subparts): Likewise.
14079         * print-tree.c (print_node): Likewise.
14080         * stor-layout.c (layout_type): Likewise.
14081         * targhooks.c (default_builtin_vectorization_cost): Likewise.
14082         * tree-cfg.c (verify_gimple_comparison): Likewise.
14083         (verify_gimple_assign_binary): Likewise.
14084         (verify_gimple_assign_ternary): Likewise.
14085         (verify_gimple_assign_single): Likewise.
14086         * tree-pretty-print.c (dump_generic_node): Likewise.
14087         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
14088         (simplify_bitfield_ref, is_combined_permutation_identity): Likewise.
14089         * tree-vect-data-refs.c (vect_permute_store_chain): Likewise.
14090         (vect_grouped_load_supported, vect_permute_load_chain): Likewise.
14091         (vect_shift_permute_load_chain): Likewise.
14092         * tree-vect-generic.c (nunits_for_known_piecewise_op): Likewise.
14093         (expand_vector_condition, optimize_vector_constructor): Likewise.
14094         (lower_vec_perm, get_compute_type): Likewise.
14095         * tree-vect-loop.c (vect_determine_vectorization_factor): Likewise.
14096         (get_initial_defs_for_reduction, vect_transform_loop): Likewise.
14097         * tree-vect-patterns.c (vect_recog_bool_pattern): Likewise.
14098         (vect_recog_mask_conversion_pattern): Likewise.
14099         * tree-vect-slp.c (vect_supported_load_permutation_p): Likewise.
14100         (vect_get_constant_vectors, vect_transform_slp_perm_load): Likewise.
14101         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
14102         (get_group_load_store_type, vectorizable_mask_load_store): Likewise.
14103         (vectorizable_bswap, simd_clone_subparts, vectorizable_assignment)
14104         (vectorizable_shift, vectorizable_operation, vectorizable_store)
14105         (vectorizable_load, vect_is_simple_cond, vectorizable_comparison)
14106         (supportable_widening_operation): Likewise.
14107         (supportable_narrowing_operation): Likewise.
14108         * tree-vector-builder.c (tree_vector_builder::binary_encoded_nelts):
14109         Likewise.
14110         * varasm.c (output_constant): Likewise.
14111
14112 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14113             Alan Hayward  <alan.hayward@arm.com>
14114             David Sherwood  <david.sherwood@arm.com>
14115
14116         * tree-vect-data-refs.c (vect_permute_store_chain): Reorganize
14117         so that both the length == 3 and length != 3 cases set up their
14118         own permute vectors.  Add comments explaining why we know the
14119         number of elements is constant.
14120         (vect_permute_load_chain): Likewise.
14121
14122 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14123             Alan Hayward  <alan.hayward@arm.com>
14124             David Sherwood  <david.sherwood@arm.com>
14125
14126         * machmode.h (mode_nunits): Change from unsigned char to
14127         poly_uint16_pod.
14128         (ONLY_FIXED_SIZE_MODES): New macro.
14129         (pod_mode::measurement_type, scalar_int_mode::measurement_type)
14130         (scalar_float_mode::measurement_type, scalar_mode::measurement_type)
14131         (complex_mode::measurement_type, fixed_size_mode::measurement_type):
14132         New typedefs.
14133         (mode_to_nunits): Return a poly_uint16 rather than an unsigned short.
14134         (GET_MODE_NUNITS): Return a constant if ONLY_FIXED_SIZE_MODES,
14135         or if measurement_type is not polynomial.
14136         * genmodes.c (ZERO_COEFFS): New macro.
14137         (emit_mode_nunits_inline): Make mode_nunits_inline return a
14138         poly_uint16.
14139         (emit_mode_nunits): Change the type of mode_nunits to poly_uint16_pod.
14140         Use ZERO_COEFFS when emitting initializers.
14141         * data-streamer.h (bp_pack_poly_value): New function.
14142         (bp_unpack_poly_value): Likewise.
14143         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
14144         for GET_MODE_NUNITS.
14145         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
14146         for GET_MODE_NUNITS.
14147         * tree.c (make_vector_type): Remove temporary shim and make
14148         the real function take the number of units as a poly_uint64
14149         rather than an int.
14150         (build_vector_type_for_mode): Handle polynomial nunits.
14151         * dwarf2out.c (loc_descriptor, add_const_value_attribute): Likewise.
14152         * emit-rtl.c (const_vec_series_p_1): Likewise.
14153         (gen_rtx_CONST_VECTOR): Likewise.
14154         * fold-const.c (test_vec_duplicate_folding): Likewise.
14155         * genrecog.c (validate_pattern): Likewise.
14156         * optabs-query.c (can_vec_perm_var_p, can_mult_highpart_p): Likewise.
14157         * optabs-tree.c (expand_vec_cond_expr_p): Likewise.
14158         * optabs.c (expand_vector_broadcast, expand_binop_directly): Likewise.
14159         (shift_amt_for_vec_perm_mask, expand_vec_perm_var): Likewise.
14160         (expand_vec_cond_expr, expand_mult_highpart): Likewise.
14161         * rtlanal.c (subreg_get_info): Likewise.
14162         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
14163         (vect_grouped_load_supported): Likewise.
14164         * tree-vect-generic.c (type_for_widest_vector_mode): Likewise.
14165         * tree-vect-loop.c (have_whole_vector_shift): Likewise.
14166         * simplify-rtx.c (simplify_unary_operation_1): Likewise.
14167         (simplify_const_unary_operation, simplify_binary_operation_1)
14168         (simplify_const_binary_operation, simplify_ternary_operation)
14169         (test_vector_ops_duplicate, test_vector_ops): Likewise.
14170         (simplify_immed_subreg): Use GET_MODE_NUNITS on a fixed_size_mode
14171         instead of CONST_VECTOR_NUNITS.
14172         * varasm.c (output_constant_pool_2): Likewise.
14173         * rtx-vector-builder.c (rtx_vector_builder::build): Only include the
14174         explicit-encoded elements in the XVEC for variable-length vectors.
14175
14176 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14177
14178         * lra-constraints.c (curr_insn_transform): Use partial_subreg_p.
14179
14180 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14181             Alan Hayward  <alan.hayward@arm.com>
14182             David Sherwood  <david.sherwood@arm.com>
14183
14184         * coretypes.h (fixed_size_mode): Declare.
14185         (fixed_size_mode_pod): New typedef.
14186         * builtins.h (target_builtins::x_apply_args_mode)
14187         (target_builtins::x_apply_result_mode): Change type to
14188         fixed_size_mode_pod.
14189         * builtins.c (apply_args_size, apply_result_size, result_vector)
14190         (expand_builtin_apply_args_1, expand_builtin_apply)
14191         (expand_builtin_return): Update accordingly.
14192
14193 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14194
14195         * cse.c (hash_rtx_cb): Hash only the encoded elements.
14196         * cselib.c (cselib_hash_rtx): Likewise.
14197         * expmed.c (make_tree): Build VECTOR_CSTs directly from the
14198         CONST_VECTOR encoding.
14199
14200 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
14201             Jeff Law  <law@redhat.com>
14202
14203         PR target/83641
14204         * config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): For
14205         noreturn probe, use gen_pop instead of ix86_emit_restore_reg_using_pop,
14206         only set RTX_FRAME_RELATED_P on both the push and pop if cfa_reg is sp
14207         and add REG_CFA_ADJUST_CFA notes in that case to both insns.
14208
14209         PR target/83641
14210         * config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): Do not
14211         explicitly probe *sp in a noreturn function if there were any callee
14212         register saves or frame pointer is needed.
14213
14214 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
14215
14216         PR debug/83621
14217         * cfgexpand.c (expand_debug_expr): Return NULL if mode is
14218         BLKmode for ternary, binary or unary expressions.
14219
14220         PR debug/83645
14221         * var-tracking.c (delete_vta_debug_insn): New inline function.
14222         (delete_vta_debug_insns): Add USE_CFG argument, if true, walk just
14223         insns from get_insns () to NULL instead of each bb separately.
14224         Use delete_vta_debug_insn.  No longer static.
14225         (vt_debug_insns_local, variable_tracking_main_1): Adjust
14226         delete_vta_debug_insns callers.
14227         * rtl.h (delete_vta_debug_insns): Declare.
14228         * final.c (rest_of_handle_final): Call delete_vta_debug_insns
14229         instead of variable_tracking_main.
14230
14231 2018-01-03  Martin Sebor  <msebor@redhat.com>
14232
14233         PR tree-optimization/83603
14234         * calls.c (maybe_warn_nonstring_arg): Avoid accessing function
14235         arguments past the endof the argument list in functions declared
14236         without a prototype.
14237         * gimple-ssa-warn-restrict.c (wrestrict_dom_walker::check_call):
14238         Avoid checking when arguments are null.
14239
14240 2018-01-03  Martin Sebor  <msebor@redhat.com>
14241
14242         PR c/83559
14243         * doc/extend.texi (attribute const): Fix a typo.
14244         * ipa-pure-const.c ((warn_function_const, warn_function_pure): Avoid
14245         issuing -Wsuggest-attribute for void functions.
14246
14247 2018-01-03  Martin Sebor  <msebor@redhat.com>
14248
14249         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Use
14250         offset_int::from instead of wide_int::to_shwi.
14251         (maybe_diag_overlap): Remove assertion.
14252         Use HOST_WIDE_INT_PRINT_DEC instead of %lli.
14253         * gimple-ssa-sprintf.c (format_directive): Same.
14254         (parse_directive): Same.
14255         (sprintf_dom_walker::compute_format_length): Same.
14256         (try_substitute_return_value): Same.
14257
14258 2018-01-03  Jeff Law  <law@redhat.com>
14259
14260         PR middle-end/83654
14261         * explow.c (anti_adjust_stack_and_probe_stack_clash): Test a
14262         non-constant residual for zero at runtime and avoid probing in
14263         that case.  Reorganize code for trailing problem to mirror handling
14264         of the residual.
14265
14266 2018-01-03  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
14267
14268         PR tree-optimization/83501
14269         * tree-ssa-strlen.c (get_string_cst): New.
14270         (handle_char_store): Call get_string_cst.
14271
14272 2018-01-03  Martin Liska  <mliska@suse.cz>
14273
14274         PR tree-optimization/83593
14275         * tree-ssa-strlen.c: Include tree-cfg.h.
14276         (strlen_check_and_optimize_stmt): Add new argument cleanup_eh.
14277         (strlen_dom_walker): Add new member variable m_cleanup_cfg.
14278         (strlen_dom_walker::strlen_dom_walker): Initialize m_cleanup_cfg
14279         to false.
14280         (strlen_dom_walker::before_dom_children): Call
14281         gimple_purge_dead_eh_edges. Dump tranformation with details
14282         dump flags.
14283         (strlen_dom_walker::before_dom_children): Update call by adding
14284         new argument cleanup_eh.
14285         (pass_strlen::execute): Return TODO_cleanup_cfg if needed.
14286
14287 2018-01-03  Martin Liska  <mliska@suse.cz>
14288
14289         PR ipa/83549
14290         * cif-code.def (VARIADIC_THUNK): New enum value.
14291         * ipa-fnsummary.c (compute_fn_summary): Do not inline variadic
14292         thunks.
14293
14294 2018-01-03  Jan Beulich  <jbeulich@suse.com>
14295
14296         * sse.md (mov<mode>_internal): Tighten condition for when to use
14297         vmovdqu<ssescalarsize> for TI and OI modes.
14298
14299 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
14300
14301         Update copyright years.
14302
14303 2018-01-03  Martin Liska  <mliska@suse.cz>
14304
14305         PR ipa/83594
14306         * ipa-visibility.c (function_and_variable_visibility): Skip
14307         functions with noipa attribure.
14308
14309 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
14310
14311         * gcc.c (process_command): Update copyright notice dates.
14312         * gcov-dump.c (print_version): Ditto.
14313         * gcov.c (print_version): Ditto.
14314         * gcov-tool.c (print_version): Ditto.
14315         * gengtype.c (create_file): Ditto.
14316         * doc/cpp.texi: Bump @copying's copyright year.
14317         * doc/cppinternals.texi: Ditto.
14318         * doc/gcc.texi: Ditto.
14319         * doc/gccint.texi: Ditto.
14320         * doc/gcov.texi: Ditto.
14321         * doc/install.texi: Ditto.
14322         * doc/invoke.texi: Ditto.
14323
14324 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14325
14326         * vector-builder.h (vector_builder::m_full_nelts): Change from
14327         unsigned int to poly_uint64.
14328         (vector_builder::full_nelts): Update prototype accordingly.
14329         (vector_builder::new_vector): Likewise.
14330         (vector_builder::encoded_full_vector_p): Handle polynomial full_nelts.
14331         (vector_builder::operator ==): Likewise.
14332         (vector_builder::finalize): Likewise.
14333         * int-vector-builder.h (int_vector_builder::int_vector_builder):
14334         Take the number of elements as a poly_uint64 rather than an
14335         unsigned int.
14336         * vec-perm-indices.h (vec_perm_indices::m_nelts_per_input): Change
14337         from unsigned int to poly_uint64.
14338         (vec_perm_indices::vec_perm_indices): Update prototype accordingly.
14339         (vec_perm_indices::new_vector): Likewise.
14340         (vec_perm_indices::length): Likewise.
14341         (vec_perm_indices::nelts_per_input): Likewise.
14342         (vec_perm_indices::input_nelts): Likewise.
14343         * vec-perm-indices.c (vec_perm_indices::new_vector): Take the
14344         number of elements per input as a poly_uint64 rather than an
14345         unsigned int.  Use the original encoding for variable-length
14346         vectors, rather than clamping each individual element.
14347         For the second and subsequent elements in each pattern,
14348         clamp the step and base before clamping their sum.
14349         (vec_perm_indices::series_p): Handle polynomial element counts.
14350         (vec_perm_indices::all_in_range_p): Likewise.
14351         (vec_perm_indices_to_tree): Likewise.
14352         (vec_perm_indices_to_rtx): Likewise.
14353         * tree-vect-stmts.c (vect_gen_perm_mask_any): Likewise.
14354         * tree-vector-builder.c (tree_vector_builder::new_unary_operation)
14355         (tree_vector_builder::new_binary_operation): Handle polynomial
14356         element counts.  Return false if we need to know the number
14357         of elements at compile time.
14358         * fold-const.c (fold_vec_perm): Punt if the number of elements
14359         isn't known at compile time.
14360
14361 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14362
14363         * vec-perm-indices.h (vec_perm_builder): Change element type
14364         from HOST_WIDE_INT to poly_int64.
14365         (vec_perm_indices::element_type): Update accordingly.
14366         (vec_perm_indices::clamp): Handle polynomial element_types.
14367         * vec-perm-indices.c (vec_perm_indices::series_p): Likewise.
14368         (vec_perm_indices::all_in_range_p): Likewise.
14369         (tree_to_vec_perm_builder): Check for poly_int64 trees rather
14370         than shwi trees.
14371         * vector-builder.h (vector_builder::stepped_sequence_p): Handle
14372         polynomial vec_perm_indices element types.
14373         * int-vector-builder.h (int_vector_builder::equal_p): Likewise.
14374         * fold-const.c (fold_vec_perm): Likewise.
14375         * optabs.c (shift_amt_for_vec_perm_mask): Likewise.
14376         * tree-vect-generic.c (lower_vec_perm): Likewise.
14377         * tree-vect-slp.c (vect_transform_slp_perm_load): Likewise.
14378         * config/aarch64/aarch64.c (aarch64_evpc_tbl): Cast d->perm
14379         element type to HOST_WIDE_INT.
14380
14381 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14382             Alan Hayward  <alan.hayward@arm.com>
14383             David Sherwood  <david.sherwood@arm.com>
14384
14385         * alias.c (addr_side_effect_eval): Take the size as a poly_int64
14386         rather than an int.  Use plus_constant.
14387         (memrefs_conflict_p): Take the sizes as poly_int64s rather than ints.
14388         Take the offset "c" as a poly_int64 rather than a HOST_WIDE_INT.
14389
14390 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14391             Alan Hayward  <alan.hayward@arm.com>
14392             David Sherwood  <david.sherwood@arm.com>
14393
14394         * calls.c (emit_call_1, expand_call): Change struct_value_size from
14395         a HOST_WIDE_INT to a poly_int64.
14396
14397 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14398             Alan Hayward  <alan.hayward@arm.com>
14399             David Sherwood  <david.sherwood@arm.com>
14400
14401         * calls.c (load_register_parameters): Cope with polynomial
14402         mode sizes.  Require a constant size for BLKmode parameters
14403         that aren't described by a PARALLEL.  If BLOCK_REG_PADDING
14404         forces a parameter to be padded at the lsb end in order to
14405         fill a complete number of words, require the parameter size
14406         to be ordered wrt UNITS_PER_WORD.
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         * reload1.c (spill_stack_slot_width): Change element type
14413         from unsigned int to poly_uint64_pod.
14414         (alter_reg): Treat mode sizes as polynomial.
14415
14416 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14417             Alan Hayward  <alan.hayward@arm.com>
14418             David Sherwood  <david.sherwood@arm.com>
14419
14420         * reload.c (complex_word_subreg_p): New function.
14421         (reload_inner_reg_of_subreg, push_reload): Use it.
14422
14423 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14424             Alan Hayward  <alan.hayward@arm.com>
14425             David Sherwood  <david.sherwood@arm.com>
14426
14427         * lra-constraints.c (process_alt_operands): Reject matched
14428         operands whose sizes aren't ordered.
14429         (match_reload): Refer to this check here.
14430
14431 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14432             Alan Hayward  <alan.hayward@arm.com>
14433             David Sherwood  <david.sherwood@arm.com>
14434
14435         * builtins.c (expand_ifn_atomic_compare_exchange_into_call): Assert
14436         that the mode size is in the set {1, 2, 4, 8, 16}.
14437
14438 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14439             Alan Hayward  <alan.hayward@arm.com>
14440             David Sherwood  <david.sherwood@arm.com>
14441
14442         * var-tracking.c (adjust_mems): Treat mode sizes as polynomial.
14443         Use plus_constant instead of gen_rtx_PLUS.
14444
14445 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14446             Alan Hayward  <alan.hayward@arm.com>
14447             David Sherwood  <david.sherwood@arm.com>
14448
14449         * config/cr16/cr16-protos.h (cr16_push_rounding): Declare.
14450         * config/cr16/cr16.h (PUSH_ROUNDING): Move implementation to...
14451         * config/cr16/cr16.c (cr16_push_rounding): ...this new function.
14452         * config/h8300/h8300-protos.h (h8300_push_rounding): Declare.
14453         * config/h8300/h8300.h (PUSH_ROUNDING): Move implementation to...
14454         * config/h8300/h8300.c (h8300_push_rounding): ...this new function.
14455         * config/i386/i386-protos.h (ix86_push_rounding): Declare.
14456         * config/i386/i386.h (PUSH_ROUNDING): Move implementation to...
14457         * config/i386/i386.c (ix86_push_rounding): ...this new function.
14458         * config/m32c/m32c-protos.h (m32c_push_rounding): Take and return
14459         a poly_int64.
14460         * config/m32c/m32c.c (m32c_push_rounding): Likewise.
14461         * config/m68k/m68k-protos.h (m68k_push_rounding): Declare.
14462         * config/m68k/m68k.h (PUSH_ROUNDING): Move implementation to...
14463         * config/m68k/m68k.c (m68k_push_rounding): ...this new function.
14464         * config/pdp11/pdp11-protos.h (pdp11_push_rounding): Declare.
14465         * config/pdp11/pdp11.h (PUSH_ROUNDING): Move implementation to...
14466         * config/pdp11/pdp11.c (pdp11_push_rounding): ...this new function.
14467         * config/stormy16/stormy16-protos.h (xstormy16_push_rounding): Declare.
14468         * config/stormy16/stormy16.h (PUSH_ROUNDING): Move implementation to...
14469         * config/stormy16/stormy16.c (xstormy16_push_rounding): ...this new
14470         function.
14471         * expr.c (emit_move_resolve_push): Treat the input and result
14472         of PUSH_ROUNDING as a poly_int64.
14473         (emit_move_complex_push, emit_single_push_insn_1): Likewise.
14474         (emit_push_insn): Likewise.
14475         * lra-eliminations.c (mark_not_eliminable): Likewise.
14476         * recog.c (push_operand): Likewise.
14477         * reload1.c (elimination_effects): Likewise.
14478         * rtlanal.c (nonzero_bits1): Likewise.
14479         * calls.c (store_one_arg): Likewise.  Require the padding to be
14480         known at compile time.
14481
14482 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14483             Alan Hayward  <alan.hayward@arm.com>
14484             David Sherwood  <david.sherwood@arm.com>
14485
14486         * expr.c (emit_single_push_insn_1): Treat mode sizes as polynomial.
14487         Use plus_constant instead of gen_rtx_PLUS.
14488
14489 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14490             Alan Hayward  <alan.hayward@arm.com>
14491             David Sherwood  <david.sherwood@arm.com>
14492
14493         * auto-inc-dec.c (set_inc_state): Take the mode size as a poly_int64
14494         rather than an int.
14495
14496 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14497             Alan Hayward  <alan.hayward@arm.com>
14498             David Sherwood  <david.sherwood@arm.com>
14499
14500         * expr.c (expand_expr_real_1): Use tree_to_poly_uint64
14501         instead of int_size_in_bytes when handling VIEW_CONVERT_EXPRs
14502         via stack temporaries.  Treat the mode size as polynomial too.
14503
14504 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14505             Alan Hayward  <alan.hayward@arm.com>
14506             David Sherwood  <david.sherwood@arm.com>
14507
14508         * expr.c (expand_expr_real_2): When handling conversions involving
14509         unions, apply tree_to_poly_uint64 to the TYPE_SIZE rather than
14510         multiplying int_size_in_bytes by BITS_PER_UNIT.  Treat GET_MODE_BISIZE
14511         as a poly_uint64 too.
14512
14513 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14514             Alan Hayward  <alan.hayward@arm.com>
14515             David Sherwood  <david.sherwood@arm.com>
14516
14517         * rtlanal.c (subreg_get_info): Handle polynomial mode sizes.
14518
14519 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14520             Alan Hayward  <alan.hayward@arm.com>
14521             David Sherwood  <david.sherwood@arm.com>
14522
14523         * combine.c (can_change_dest_mode): Handle polynomial
14524         REGMODE_NATURAL_SIZE.
14525         * expmed.c (store_bit_field_1): Likewise.
14526         * expr.c (store_constructor): Likewise.
14527         * emit-rtl.c (validate_subreg): Operate on polynomial mode sizes
14528         and polynomial REGMODE_NATURAL_SIZE.
14529         (gen_lowpart_common): Likewise.
14530         * reginfo.c (record_subregs_of_mode): Likewise.
14531         * rtlanal.c (read_modify_subreg_p): Likewise.
14532
14533 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14534             Alan Hayward  <alan.hayward@arm.com>
14535             David Sherwood  <david.sherwood@arm.com>
14536
14537         * internal-fn.c (expand_vector_ubsan_overflow): Handle polynomial
14538         numbers of elements.
14539
14540 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14541             Alan Hayward  <alan.hayward@arm.com>
14542             David Sherwood  <david.sherwood@arm.com>
14543
14544         * match.pd: Cope with polynomial numbers of vector elements.
14545
14546 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14547             Alan Hayward  <alan.hayward@arm.com>
14548             David Sherwood  <david.sherwood@arm.com>
14549
14550         * fold-const.c (fold_indirect_ref_1): Handle polynomial offsets
14551         in a POINTER_PLUS_EXPR.
14552
14553 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14554             Alan Hayward  <alan.hayward@arm.com>
14555             David Sherwood  <david.sherwood@arm.com>
14556
14557         * omp-simd-clone.c (simd_clone_subparts): New function.
14558         (simd_clone_init_simd_arrays): Use it instead of TYPE_VECTOR_SUBPARTS.
14559         (ipa_simd_modify_function_body): Likewise.
14560
14561 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14562             Alan Hayward  <alan.hayward@arm.com>
14563             David Sherwood  <david.sherwood@arm.com>
14564
14565         * tree-vect-generic.c (nunits_for_known_piecewise_op): New function.
14566         (expand_vector_piecewise): Use it instead of TYPE_VECTOR_SUBPARTS.
14567         (expand_vector_addition, add_rshift, expand_vector_divmod): Likewise.
14568         (expand_vector_condition, vector_element): Likewise.
14569         (subparts_gt): New function.
14570         (get_compute_type): Use subparts_gt.
14571         (count_type_subparts): Delete.
14572         (expand_vector_operations_1): Use subparts_gt instead of
14573         count_type_subparts.
14574
14575 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14576             Alan Hayward  <alan.hayward@arm.com>
14577             David Sherwood  <david.sherwood@arm.com>
14578
14579         * tree-vect-data-refs.c (vect_no_alias_p): Replace with...
14580         (vect_compile_time_alias): ...this new function.  Do the calculation
14581         on poly_ints rather than trees.
14582         (vect_prune_runtime_alias_test_list): Update call accordingly.
14583
14584 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14585             Alan Hayward  <alan.hayward@arm.com>
14586             David Sherwood  <david.sherwood@arm.com>
14587
14588         * tree-vect-slp.c (vect_build_slp_tree_1): Handle polynomial
14589         numbers of units.
14590         (vect_schedule_slp_instance): Likewise.
14591
14592 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14593             Alan Hayward  <alan.hayward@arm.com>
14594             David Sherwood  <david.sherwood@arm.com>
14595
14596         * tree-vect-slp.c (vect_get_and_check_slp_defs): Reject
14597         constant and extern definitions for variable-length vectors.
14598         (vect_get_constant_vectors): Note that the number of units
14599         is known to be constant.
14600
14601 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14602             Alan Hayward  <alan.hayward@arm.com>
14603             David Sherwood  <david.sherwood@arm.com>
14604
14605         * tree-vect-stmts.c (vectorizable_conversion): Treat the number
14606         of units as polynomial.  Choose between WIDE and NARROW based
14607         on multiple_p.
14608
14609 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14610             Alan Hayward  <alan.hayward@arm.com>
14611             David Sherwood  <david.sherwood@arm.com>
14612
14613         * tree-vect-stmts.c (simd_clone_subparts): New function.
14614         (vectorizable_simd_clone_call): Use it instead of TYPE_VECTOR_SUBPARTS.
14615
14616 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14617             Alan Hayward  <alan.hayward@arm.com>
14618             David Sherwood  <david.sherwood@arm.com>
14619
14620         * tree-vect-stmts.c (vectorizable_call): Treat the number of
14621         vectors as polynomial.  Use build_index_vector for
14622         IFN_GOMP_SIMD_LANE.
14623
14624 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14625             Alan Hayward  <alan.hayward@arm.com>
14626             David Sherwood  <david.sherwood@arm.com>
14627
14628         * tree-vect-stmts.c (get_load_store_type): Treat the number of
14629         units as polynomial.  Reject VMAT_ELEMENTWISE and VMAT_STRIDED_SLP
14630         for variable-length vectors.
14631         (vectorizable_mask_load_store): Treat the number of units as
14632         polynomial, asserting that it is constant if the condition has
14633         already been enforced.
14634         (vectorizable_store, vectorizable_load): Likewise.
14635
14636 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14637             Alan Hayward  <alan.hayward@arm.com>
14638             David Sherwood  <david.sherwood@arm.com>
14639
14640         * tree-vect-loop.c (vectorizable_live_operation): Treat the number
14641         of units as polynomial.  Punt if we can't tell at compile time
14642         which vector contains the final result.
14643
14644 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14645             Alan Hayward  <alan.hayward@arm.com>
14646             David Sherwood  <david.sherwood@arm.com>
14647
14648         * tree-vect-loop.c (vectorizable_induction): Treat the number
14649         of units as polynomial.  Punt on SLP inductions.  Use an integer
14650         VEC_SERIES_EXPR for variable-length integer reductions.  Use a
14651         cast of such a series for variable-length floating-point
14652         reductions.
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.h (build_index_vector): Declare.
14659         * tree.c (build_index_vector): New function.
14660         * tree-vect-loop.c (get_initial_defs_for_reduction): Treat the number
14661         of units as polynomial, forcibly converting it to a constant if
14662         vectorizable_reduction has already enforced the condition.
14663         (vect_create_epilog_for_reduction): Likewise.  Use build_index_vector
14664         to create a {1,2,3,...} vector.
14665         (vectorizable_reduction): Treat the number of units as polynomial.
14666         Choose vectype_in based on the largest scalar element size rather
14667         than the smallest number of units.  Enforce the restrictions
14668         relied on above.
14669
14670 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14671             Alan Hayward  <alan.hayward@arm.com>
14672             David Sherwood  <david.sherwood@arm.com>
14673
14674         * tree-vect-data-refs.c (vector_alignment_reachable_p): Treat the
14675         number of units as polynomial.
14676
14677 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14678             Alan Hayward  <alan.hayward@arm.com>
14679             David Sherwood  <david.sherwood@arm.com>
14680
14681         * target.h (vector_sizes, auto_vector_sizes): New typedefs.
14682         * target.def (autovectorize_vector_sizes): Return the vector sizes
14683         by pointer, using vector_sizes rather than a bitmask.
14684         * targhooks.h (default_autovectorize_vector_sizes): Update accordingly.
14685         * targhooks.c (default_autovectorize_vector_sizes): Likewise.
14686         * config/aarch64/aarch64.c (aarch64_autovectorize_vector_sizes):
14687         Likewise.
14688         * config/arc/arc.c (arc_autovectorize_vector_sizes): Likewise.
14689         * config/arm/arm.c (arm_autovectorize_vector_sizes): Likewise.
14690         * config/i386/i386.c (ix86_autovectorize_vector_sizes): Likewise.
14691         * config/mips/mips.c (mips_autovectorize_vector_sizes): Likewise.
14692         * omp-general.c (omp_max_vf): Likewise.
14693         * omp-low.c (omp_clause_aligned_alignment): Likewise.
14694         * optabs-query.c (can_vec_mask_load_store_p): Likewise.
14695         * tree-vect-loop.c (vect_analyze_loop): Likewise.
14696         * tree-vect-slp.c (vect_slp_bb): Likewise.
14697         * doc/tm.texi: Regenerate.
14698         * tree-vectorizer.h (current_vector_size): Change from an unsigned int
14699         to a poly_uint64.
14700         * tree-vect-stmts.c (get_vectype_for_scalar_type_and_size): Take
14701         the vector size as a poly_uint64 rather than an unsigned int.
14702         (current_vector_size): Change from an unsigned int to a poly_uint64.
14703         (get_vectype_for_scalar_type): Update accordingly.
14704         * tree.h (build_truth_vector_type): Take the size and number of
14705         units as a poly_uint64 rather than an unsigned int.
14706         (build_vector_type): Add a temporary overload that takes
14707         the number of units as a poly_uint64 rather than an unsigned int.
14708         * tree.c (make_vector_type): Likewise.
14709         (build_truth_vector_type): Take the number of units as a poly_uint64
14710         rather than an unsigned int.
14711
14712 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14713             Alan Hayward  <alan.hayward@arm.com>
14714             David Sherwood  <david.sherwood@arm.com>
14715
14716         * target.def (get_mask_mode): Take the number of units and length
14717         as poly_uint64s rather than unsigned ints.
14718         * targhooks.h (default_get_mask_mode): Update accordingly.
14719         * targhooks.c (default_get_mask_mode): Likewise.
14720         * config/i386/i386.c (ix86_get_mask_mode): Likewise.
14721         * doc/tm.texi: Regenerate.
14722
14723 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14724             Alan Hayward  <alan.hayward@arm.com>
14725             David Sherwood  <david.sherwood@arm.com>
14726
14727         * omp-general.h (omp_max_vf): Return a poly_uint64 instead of an int.
14728         * omp-general.c (omp_max_vf): Likewise.
14729         * omp-expand.c (omp_adjust_chunk_size): Update call to omp_max_vf.
14730         (expand_omp_simd): Handle polynomial safelen.
14731         * omp-low.c (omplow_simd_context): Add a default constructor.
14732         (omplow_simd_context::max_vf): Change from int to poly_uint64.
14733         (lower_rec_simd_input_clauses): Update accordingly.
14734         (lower_rec_input_clauses): Likewise.
14735
14736 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14737             Alan Hayward  <alan.hayward@arm.com>
14738             David Sherwood  <david.sherwood@arm.com>
14739
14740         * tree-vectorizer.h (vect_nunits_for_cost): New function.
14741         * tree-vect-loop.c (vect_model_reduction_cost): Use it.
14742         * tree-vect-slp.c (vect_analyze_slp_cost_1): Likewise.
14743         (vect_analyze_slp_cost): Likewise.
14744         * tree-vect-stmts.c (vect_model_store_cost): Likewise.
14745         (vect_model_load_cost): Likewise.
14746
14747 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14748             Alan Hayward  <alan.hayward@arm.com>
14749             David Sherwood  <david.sherwood@arm.com>
14750
14751         * tree-vect-slp.c (vect_record_max_nunits, vect_build_slp_tree_1)
14752         (vect_build_slp_tree_2, vect_build_slp_tree): Change max_nunits
14753         from an unsigned int * to a poly_uint64_pod *.
14754         (calculate_unrolling_factor): New function.
14755         (vect_analyze_slp_instance): Use it.  Track polynomial max_nunits.
14756
14757 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14758             Alan Hayward  <alan.hayward@arm.com>
14759             David Sherwood  <david.sherwood@arm.com>
14760
14761         * tree-vectorizer.h (_slp_instance::unrolling_factor): Change
14762         from an unsigned int to a poly_uint64.
14763         (_loop_vec_info::slp_unrolling_factor): Likewise.
14764         (_loop_vec_info::vectorization_factor): Change from an int
14765         to a poly_uint64.
14766         (MAX_VECTORIZATION_FACTOR): Bump from 64 to INT_MAX.
14767         (vect_get_num_vectors): New function.
14768         (vect_update_max_nunits, vect_vf_for_cost): Likewise.
14769         (vect_get_num_copies): Use vect_get_num_vectors.
14770         (vect_analyze_data_ref_dependences): Change max_vf from an int *
14771         to an unsigned int *.
14772         (vect_analyze_data_refs): Change min_vf from an int * to a
14773         poly_uint64 *.
14774         (vect_transform_slp_perm_load): Take the vf as a poly_uint64 rather
14775         than an unsigned HOST_WIDE_INT.
14776         * tree-vect-data-refs.c (vect_analyze_possibly_independent_ddr)
14777         (vect_analyze_data_ref_dependence): Change max_vf from an int *
14778         to an unsigned int *.
14779         (vect_analyze_data_ref_dependences): Likewise.
14780         (vect_compute_data_ref_alignment): Handle polynomial vf.
14781         (vect_enhance_data_refs_alignment): Likewise.
14782         (vect_prune_runtime_alias_test_list): Likewise.
14783         (vect_shift_permute_load_chain): Likewise.
14784         (vect_supportable_dr_alignment): Likewise.
14785         (dependence_distance_ge_vf): Take the vectorization factor as a
14786         poly_uint64 rather than an unsigned HOST_WIDE_INT.
14787         (vect_analyze_data_refs): Change min_vf from an int * to a
14788         poly_uint64 *.
14789         * tree-vect-loop-manip.c (vect_gen_scalar_loop_niters): Take
14790         vfm1 as a poly_uint64 rather than an int.  Make the same change
14791         for the returned bound_scalar.
14792         (vect_gen_vector_loop_niters): Handle polynomial vf.
14793         (vect_do_peeling): Likewise.  Update call to
14794         vect_gen_scalar_loop_niters and handle polynomial bound_scalars.
14795         (vect_gen_vector_loop_niters_mult_vf): Assert that the vf must
14796         be constant.
14797         * tree-vect-loop.c (vect_determine_vectorization_factor)
14798         (vect_update_vf_for_slp, vect_analyze_loop_2): Handle polynomial vf.
14799         (vect_get_known_peeling_cost): Likewise.
14800         (vect_estimate_min_profitable_iters, vectorizable_reduction): Likewise.
14801         (vect_worthwhile_without_simd_p, vectorizable_induction): Likewise.
14802         (vect_transform_loop): Likewise.  Use the lowest possible VF when
14803         updating the upper bounds of the loop.
14804         (vect_min_worthwhile_factor): Make static.  Return an unsigned int
14805         rather than an int.
14806         * tree-vect-slp.c (vect_attempt_slp_rearrange_stmts): Cope with
14807         polynomial unroll factors.
14808         (vect_analyze_slp_cost_1, vect_analyze_slp_instance): Likewise.
14809         (vect_make_slp_decision): Likewise.
14810         (vect_supported_load_permutation_p): Likewise, and polynomial
14811         vf too.
14812         (vect_analyze_slp_cost): Handle polynomial vf.
14813         (vect_slp_analyze_node_operations): Likewise.
14814         (vect_slp_analyze_bb_1): Likewise.
14815         (vect_transform_slp_perm_load): Take the vf as a poly_uint64 rather
14816         than an unsigned HOST_WIDE_INT.
14817         * tree-vect-stmts.c (vectorizable_simd_clone_call, vectorizable_store)
14818         (vectorizable_load): Handle polynomial vf.
14819         * tree-vectorizer.c (simduid_to_vf::vf): Change from an int to
14820         a poly_uint64.
14821         (adjust_simduid_builtins, shrink_simd_arrays): Update accordingly.
14822
14823 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14824             Alan Hayward  <alan.hayward@arm.com>
14825             David Sherwood  <david.sherwood@arm.com>
14826
14827         * match.pd: Handle bit operations involving three constants
14828         and try to fold one pair.
14829
14830 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
14831
14832         * tree-vect-loop-manip.c: Include gimple-fold.h.
14833         (slpeel_make_loop_iterate_ntimes): Add step, final_iv and
14834         niters_maybe_zero parameters.  Handle other cases besides a step of 1.
14835         (vect_gen_vector_loop_niters): Add a step_vector_ptr parameter.
14836         Add a path that uses a step of VF instead of 1, but disable it
14837         for now.
14838         (vect_do_peeling): Add step_vector, niters_vector_mult_vf_var
14839         and niters_no_overflow parameters.  Update calls to
14840         slpeel_make_loop_iterate_ntimes and vect_gen_vector_loop_niters.
14841         Create a new SSA name if the latter choses to use a ste other
14842         than zero, and return it via niters_vector_mult_vf_var.
14843         * tree-vect-loop.c (vect_transform_loop): Update calls to
14844         vect_do_peeling, vect_gen_vector_loop_niters and
14845         slpeel_make_loop_iterate_ntimes.
14846         * tree-vectorizer.h (slpeel_make_loop_iterate_ntimes, vect_do_peeling)
14847         (vect_gen_vector_loop_niters): Update declarations after above changes.
14848
14849 2018-01-02  Michael Meissner  <meissner@linux.vnet.ibm.com>
14850
14851         * config/rs6000/rs6000.md (floor<mode>2): Add support for IEEE
14852         128-bit round to integer instructions.
14853         (ceil<mode>2): Likewise.
14854         (btrunc<mode>2): Likewise.
14855         (round<mode>2): Likewise.
14856
14857 2018-01-02  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
14858
14859         * config/rs6000/rs6000-string.c (expand_block_move): Allow the use of
14860         unaligned VSX load/store on P8/P9.
14861         (expand_block_clear): Allow the use of unaligned VSX
14862         load/store on P8/P9.
14863
14864 2018-01-02  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
14865
14866         * config/rs6000/rs6000-p8swap.c (swap_feeds_both_load_and_store):
14867         New function.
14868         (rs6000_analyze_swaps): Mark a web unoptimizable if it contains a
14869         swap associated with both a load and a store.
14870
14871 2018-01-02  Andrew Waterman  <andrew@sifive.com>
14872
14873         * config/riscv/linux.h (ICACHE_FLUSH_FUNC): New.
14874         * config/riscv/riscv.md (clear_cache): Use it.
14875
14876 2018-01-02  Artyom Skrobov  <tyomitch@gmail.com>
14877
14878         * web.c: Remove out-of-date comment.
14879
14880 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
14881
14882         * expr.c (fixup_args_size_notes): Check that any existing
14883         REG_ARGS_SIZE notes are correct, and don't try to re-add them.
14884         (emit_single_push_insn_1): Move stack_pointer_delta adjustment to...
14885         (emit_single_push_insn): ...here.
14886
14887 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
14888
14889         * rtl.h (CONST_VECTOR_ELT): Redefine to const_vector_elt.
14890         (const_vector_encoded_nelts): New function.
14891         (CONST_VECTOR_NUNITS): Redefine to use GET_MODE_NUNITS.
14892         (const_vector_int_elt, const_vector_elt): Declare.
14893         * emit-rtl.c (const_vector_int_elt_1): New function.
14894         (const_vector_elt): Likewise.
14895         * simplify-rtx.c (simplify_immed_subreg): Avoid taking the address
14896         of CONST_VECTOR_ELT.
14897
14898 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
14899
14900         * expr.c: Include rtx-vector-builder.h.
14901         (const_vector_mask_from_tree): Use rtx_vector_builder and operate
14902         directly on the tree encoding.
14903         (const_vector_from_tree): Likewise.
14904         * optabs.c: Include rtx-vector-builder.h.
14905         (expand_vec_perm_var): Use rtx_vector_builder and create a repeating
14906         sequence of "u" values.
14907         * vec-perm-indices.c: Include rtx-vector-builder.h.
14908         (vec_perm_indices_to_rtx): Use rtx_vector_builder and operate
14909         directly on the vec_perm_indices encoding.
14910
14911 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
14912
14913         * doc/rtl.texi (const_vector): Describe new encoding scheme.
14914         * Makefile.in (OBJS): Add rtx-vector-builder.o.
14915         * rtx-vector-builder.h: New file.
14916         * rtx-vector-builder.c: Likewise.
14917         * rtl.h (rtx_def::u2): Add a const_vector field.
14918         (CONST_VECTOR_NPATTERNS): New macro.
14919         (CONST_VECTOR_NELTS_PER_PATTERN): Likewise.
14920         (CONST_VECTOR_DUPLICATE_P): Likewise.
14921         (CONST_VECTOR_STEPPED_P): Likewise.
14922         (CONST_VECTOR_ENCODED_ELT): Likewise.
14923         (const_vec_duplicate_p): Check for a duplicated vector encoding.
14924         (unwrap_const_vec_duplicate): Likewise.
14925         (const_vec_series_p): Check for a non-duplicated vector encoding.
14926         Say that the function only returns true for integer vectors.
14927         * emit-rtl.c: Include rtx-vector-builder.h.
14928         (gen_const_vec_duplicate_1): Delete.
14929         (gen_const_vector): Call gen_const_vec_duplicate instead of
14930         gen_const_vec_duplicate_1.
14931         (const_vec_series_p_1): Operate directly on the CONST_VECTOR encoding.
14932         (gen_const_vec_duplicate): Use rtx_vector_builder.
14933         (gen_const_vec_series): Likewise.
14934         (gen_rtx_CONST_VECTOR): Likewise.
14935         * config/powerpcspe/powerpcspe.c: Include rtx-vector-builder.h.
14936         (swap_const_vector_halves): Take an rtx pointer rather than rtx.
14937         Build a new vector rather than modifying a CONST_VECTOR in-place.
14938         (handle_special_swappables): Update call accordingly.
14939         * config/rs6000/rs6000-p8swap.c: Include rtx-vector-builder.h.
14940         (swap_const_vector_halves): Take an rtx pointer rather than rtx.
14941         Build a new vector rather than modifying a CONST_VECTOR in-place.
14942         (handle_special_swappables): Update call accordingly.
14943
14944 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
14945
14946         * simplify-rtx.c (simplify_const_binary_operation): Use
14947         CONST_VECTOR_ELT instead of XVECEXP.
14948
14949 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
14950
14951         * tree-cfg.c (verify_gimple_assign_ternary): Allow the size of
14952         the selector elements to be different from the data elements
14953         if the selector is a VECTOR_CST.
14954         * tree-vect-stmts.c (vect_gen_perm_mask_any): Use a vector of
14955         ssizetype for the selector.
14956
14957 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
14958
14959         * optabs.c (shift_amt_for_vec_perm_mask): Try using series_p
14960         before testing each element individually.
14961         * tree-vect-generic.c (lower_vec_perm): Likewise.
14962
14963 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
14964
14965         * selftest.h (selftest::vec_perm_indices_c_tests): Declare.
14966         * selftest-run-tests.c (selftest::run_tests): Call it.
14967         * vector-builder.h (vector_builder::operator ==): New function.
14968         (vector_builder::operator !=): Likewise.
14969         * vec-perm-indices.h (vec_perm_indices::series_p): Declare.
14970         (vec_perm_indices::all_from_input_p): New function.
14971         * vec-perm-indices.c (vec_perm_indices::series_p): Likewise.
14972         (test_vec_perm_12, selftest::vec_perm_indices_c_tests): Likewise.
14973         * fold-const.c (fold_ternary_loc): Use tree_to_vec_perm_builder
14974         instead of reading the VECTOR_CST directly.  Detect whether both
14975         vector inputs are the same before constructing the vec_perm_indices,
14976         and update the number of inputs argument accordingly.  Use the
14977         utility functions added above.  Only construct sel2 if we need to.
14978
14979 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
14980
14981         * optabs.c (expand_vec_perm_var): Use an explicit encoding for
14982         the broadcast of the low byte.
14983         (expand_mult_highpart): Use an explicit encoding for the permutes.
14984         * optabs-query.c (can_mult_highpart_p): Likewise.
14985         * tree-vect-loop.c (calc_vec_perm_mask_for_shift): Likewise.
14986         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
14987         (vectorizable_bswap): Likewise.
14988         * tree-vect-data-refs.c (vect_grouped_store_supported): Use an
14989         explicit encoding for the power-of-2 permutes.
14990         (vect_permute_store_chain): Likewise.
14991         (vect_grouped_load_supported): Likewise.
14992         (vect_permute_load_chain): Likewise.
14993
14994 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
14995
14996         * vec-perm-indices.h (vec_perm_indices_to_tree): Declare.
14997         * vec-perm-indices.c (vec_perm_indices_to_tree): New function.
14998         * tree-ssa-forwprop.c (simplify_vector_constructor): Use it.
14999         * tree-vect-slp.c (vect_transform_slp_perm_load): Likewise.
15000         * tree-vect-stmts.c (vectorizable_bswap): Likewise.
15001         (vect_gen_perm_mask_any): Likewise.
15002
15003 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
15004
15005         * int-vector-builder.h: New file.
15006         * vec-perm-indices.h: Include int-vector-builder.h.
15007         (vec_perm_indices): Redefine as an int_vector_builder.
15008         (auto_vec_perm_indices): Delete.
15009         (vec_perm_builder): Redefine as a stand-alone class.
15010         (vec_perm_indices::vec_perm_indices): New function.
15011         (vec_perm_indices::clamp): Likewise.
15012         * vec-perm-indices.c: Include fold-const.h and tree-vector-builder.h.
15013         (vec_perm_indices::new_vector): New function.
15014         (vec_perm_indices::new_expanded_vector): Update for new
15015         vec_perm_indices class.
15016         (vec_perm_indices::rotate_inputs): New function.
15017         (vec_perm_indices::all_in_range_p): Operate directly on the
15018         encoded form, without computing elided elements.
15019         (tree_to_vec_perm_builder): Operate directly on the VECTOR_CST
15020         encoding.  Update for new vec_perm_indices class.
15021         * optabs.c (expand_vec_perm_const): Create a vec_perm_indices for
15022         the given vec_perm_builder.
15023         (expand_vec_perm_var): Update vec_perm_builder constructor.
15024         (expand_mult_highpart): Use vec_perm_builder instead of
15025         auto_vec_perm_indices.
15026         * optabs-query.c (can_mult_highpart_p): Use vec_perm_builder and
15027         vec_perm_indices instead of auto_vec_perm_indices.  Use a single
15028         or double series encoding as appropriate.
15029         * fold-const.c (fold_ternary_loc): Use vec_perm_builder and
15030         vec_perm_indices instead of auto_vec_perm_indices.
15031         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
15032         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
15033         (vect_permute_store_chain): Likewise.
15034         (vect_grouped_load_supported): Likewise.
15035         (vect_permute_load_chain): Likewise.
15036         (vect_shift_permute_load_chain): Likewise.
15037         * tree-vect-slp.c (vect_build_slp_tree_1): Likewise.
15038         (vect_transform_slp_perm_load): Likewise.
15039         (vect_schedule_slp_instance): Likewise.
15040         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
15041         (vectorizable_mask_load_store): Likewise.
15042         (vectorizable_bswap): Likewise.
15043         (vectorizable_store): Likewise.
15044         (vectorizable_load): Likewise.
15045         * tree-vect-generic.c (lower_vec_perm): Use vec_perm_builder and
15046         vec_perm_indices instead of auto_vec_perm_indices.  Use
15047         tree_to_vec_perm_builder to read the vector from a tree.
15048         * tree-vect-loop.c (calc_vec_perm_mask_for_shift): Take a
15049         vec_perm_builder instead of a vec_perm_indices.
15050         (have_whole_vector_shift): Use vec_perm_builder and
15051         vec_perm_indices instead of auto_vec_perm_indices.  Leave the
15052         truncation to calc_vec_perm_mask_for_shift.
15053         (vect_create_epilog_for_reduction): Likewise.
15054         * config/aarch64/aarch64.c (expand_vec_perm_d::perm): Change
15055         from auto_vec_perm_indices to vec_perm_indices.
15056         (aarch64_expand_vec_perm_const_1): Use rotate_inputs on d.perm
15057         instead of changing individual elements.
15058         (aarch64_vectorize_vec_perm_const): Use new_vector to install
15059         the vector in d.perm.
15060         * config/arm/arm.c (expand_vec_perm_d::perm): Change
15061         from auto_vec_perm_indices to vec_perm_indices.
15062         (arm_expand_vec_perm_const_1): Use rotate_inputs on d.perm
15063         instead of changing individual elements.
15064         (arm_vectorize_vec_perm_const): Use new_vector to install
15065         the vector in d.perm.
15066         * config/powerpcspe/powerpcspe.c (rs6000_expand_extract_even):
15067         Update vec_perm_builder constructor.
15068         (rs6000_expand_interleave): Likewise.
15069         * config/rs6000/rs6000.c (rs6000_expand_extract_even): Likewise.
15070         (rs6000_expand_interleave): Likewise.
15071
15072 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
15073
15074         * optabs-query.c (can_vec_perm_var_p): Check whether lowering
15075         to qimode could truncate the indices.
15076         * optabs.c (expand_vec_perm_var): Likewise.
15077
15078 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
15079
15080         * Makefile.in (OBJS): Add vec-perm-indices.o.
15081         * vec-perm-indices.h: New file.
15082         * vec-perm-indices.c: Likewise.
15083         * target.h (vec_perm_indices): Replace with a forward class
15084         declaration.
15085         (auto_vec_perm_indices): Move to vec-perm-indices.h.
15086         * optabs.h: Include vec-perm-indices.h.
15087         (expand_vec_perm): Delete.
15088         (selector_fits_mode_p, expand_vec_perm_var): Declare.
15089         (expand_vec_perm_const): Declare.
15090         * target.def (vec_perm_const_ok): Replace with...
15091         (vec_perm_const): ...this new hook.
15092         * doc/tm.texi.in (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Replace with...
15093         (TARGET_VECTORIZE_VEC_PERM_CONST): ...this new hook.
15094         * doc/tm.texi: Regenerate.
15095         * optabs.def (vec_perm_const): Delete.
15096         * doc/md.texi (vec_perm_const): Likewise.
15097         (vec_perm): Refer to TARGET_VECTORIZE_VEC_PERM_CONST.
15098         * expr.c (expand_expr_real_2): Use expand_vec_perm_const rather than
15099         expand_vec_perm for constant permutation vectors.  Assert that
15100         the mode of variable permutation vectors is the integer equivalent
15101         of the mode that is being permuted.
15102         * optabs-query.h (selector_fits_mode_p): Declare.
15103         * optabs-query.c: Include vec-perm-indices.h.
15104         (selector_fits_mode_p): New function.
15105         (can_vec_perm_const_p): Check whether targetm.vectorize.vec_perm_const
15106         is defined, instead of checking whether the vec_perm_const_optab
15107         exists.  Use targetm.vectorize.vec_perm_const instead of
15108         targetm.vectorize.vec_perm_const_ok.  Check whether the indices
15109         fit in the vector mode before using a variable permute.
15110         * optabs.c (shift_amt_for_vec_perm_mask): Take a mode and a
15111         vec_perm_indices instead of an rtx.
15112         (expand_vec_perm): Replace with...
15113         (expand_vec_perm_const): ...this new function.  Take the selector
15114         as a vec_perm_indices rather than an rtx.  Also take the mode of
15115         the selector.  Update call to shift_amt_for_vec_perm_mask.
15116         Use targetm.vectorize.vec_perm_const instead of vec_perm_const_optab.
15117         Use vec_perm_indices::new_expanded_vector to expand the original
15118         selector into bytes.  Check whether the indices fit in the vector
15119         mode before using a variable permute.
15120         (expand_vec_perm_var): Make global.
15121         (expand_mult_highpart): Use expand_vec_perm_const.
15122         * fold-const.c: Includes vec-perm-indices.h.
15123         * tree-ssa-forwprop.c: Likewise.
15124         * tree-vect-data-refs.c: Likewise.
15125         * tree-vect-generic.c: Likewise.
15126         * tree-vect-loop.c: Likewise.
15127         * tree-vect-slp.c: Likewise.
15128         * tree-vect-stmts.c: Likewise.
15129         * config/aarch64/aarch64-protos.h (aarch64_expand_vec_perm_const):
15130         Delete.
15131         * config/aarch64/aarch64-simd.md (vec_perm_const<mode>): Delete.
15132         * config/aarch64/aarch64.c (aarch64_expand_vec_perm_const)
15133         (aarch64_vectorize_vec_perm_const_ok): Fuse into...
15134         (aarch64_vectorize_vec_perm_const): ...this new function.
15135         (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
15136         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
15137         * config/arm/arm-protos.h (arm_expand_vec_perm_const): Delete.
15138         * config/arm/vec-common.md (vec_perm_const<mode>): Delete.
15139         * config/arm/arm.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
15140         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
15141         (arm_expand_vec_perm_const, arm_vectorize_vec_perm_const_ok): Merge
15142         into...
15143         (arm_vectorize_vec_perm_const): ...this new function.  Explicitly
15144         check for NEON modes.
15145         * config/i386/i386-protos.h (ix86_expand_vec_perm_const): Delete.
15146         * config/i386/sse.md (VEC_PERM_CONST, vec_perm_const<mode>): Delete.
15147         * config/i386/i386.c (ix86_expand_vec_perm_const_1): Update comment.
15148         (ix86_expand_vec_perm_const, ix86_vectorize_vec_perm_const_ok): Merge
15149         into...
15150         (ix86_vectorize_vec_perm_const): ...this new function.  Incorporate
15151         the old VEC_PERM_CONST conditions.
15152         * config/ia64/ia64-protos.h (ia64_expand_vec_perm_const): Delete.
15153         * config/ia64/vect.md (vec_perm_const<mode>): Delete.
15154         * config/ia64/ia64.c (ia64_expand_vec_perm_const)
15155         (ia64_vectorize_vec_perm_const_ok): Merge into...
15156         (ia64_vectorize_vec_perm_const): ...this new function.
15157         * config/mips/loongson.md (vec_perm_const<mode>): Delete.
15158         * config/mips/mips-msa.md (vec_perm_const<mode>): Delete.
15159         * config/mips/mips-ps-3d.md (vec_perm_constv2sf): Delete.
15160         * config/mips/mips-protos.h (mips_expand_vec_perm_const): Delete.
15161         * config/mips/mips.c (mips_expand_vec_perm_const)
15162         (mips_vectorize_vec_perm_const_ok): Merge into...
15163         (mips_vectorize_vec_perm_const): ...this new function.
15164         * config/powerpcspe/altivec.md (vec_perm_constv16qi): Delete.
15165         * config/powerpcspe/paired.md (vec_perm_constv2sf): Delete.
15166         * config/powerpcspe/spe.md (vec_perm_constv2si): Delete.
15167         * config/powerpcspe/vsx.md (vec_perm_const<mode>): Delete.
15168         * config/powerpcspe/powerpcspe-protos.h (altivec_expand_vec_perm_const)
15169         (rs6000_expand_vec_perm_const): Delete.
15170         * config/powerpcspe/powerpcspe.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK):
15171         Delete.
15172         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
15173         (altivec_expand_vec_perm_const_le): Take each operand individually.
15174         Operate on constant selectors rather than rtxes.
15175         (altivec_expand_vec_perm_const): Likewise.  Update call to
15176         altivec_expand_vec_perm_const_le.
15177         (rs6000_expand_vec_perm_const): Delete.
15178         (rs6000_vectorize_vec_perm_const_ok): Delete.
15179         (rs6000_vectorize_vec_perm_const): New function.
15180         (rs6000_do_expand_vec_perm): Take a vec_perm_builder instead of
15181         an element count and rtx array.
15182         (rs6000_expand_extract_even): Update call accordingly.
15183         (rs6000_expand_interleave): Likewise.
15184         * config/rs6000/altivec.md (vec_perm_constv16qi): Delete.
15185         * config/rs6000/paired.md (vec_perm_constv2sf): Delete.
15186         * config/rs6000/vsx.md (vec_perm_const<mode>): Delete.
15187         * config/rs6000/rs6000-protos.h (altivec_expand_vec_perm_const)
15188         (rs6000_expand_vec_perm_const): Delete.
15189         * config/rs6000/rs6000.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): 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.  Remove stray
15198         reference to the SPE evmerge intructions.
15199         (rs6000_do_expand_vec_perm): Take a vec_perm_builder instead of
15200         an element count and rtx array.
15201         (rs6000_expand_extract_even): Update call accordingly.
15202         (rs6000_expand_interleave): Likewise.
15203         * config/sparc/sparc.md (vec_perm_constv8qi): Delete in favor of...
15204         * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): ...this
15205         new function.
15206         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
15207
15208 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
15209
15210         * optabs.c (expand_vec_perm_1): Assert that SEL has an integer
15211         vector mode and that that mode matches the mode of the data
15212         being permuted.
15213         (expand_vec_perm): Split handling of non-CONST_VECTOR selectors
15214         out into expand_vec_perm_var.  Do all CONST_VECTOR handling here,
15215         directly using expand_vec_perm_1 when forcing selectors into
15216         registers.
15217         (expand_vec_perm_var): New function, split out from expand_vec_perm.
15218
15219 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
15220
15221         * optabs-query.h (can_vec_perm_p): Delete.
15222         (can_vec_perm_var_p, can_vec_perm_const_p): Declare.
15223         * optabs-query.c (can_vec_perm_p): Split into...
15224         (can_vec_perm_var_p, can_vec_perm_const_p): ...these two functions.
15225         (can_mult_highpart_p): Use can_vec_perm_const_p to test whether a
15226         particular selector is valid.
15227         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
15228         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
15229         (vect_grouped_load_supported): Likewise.
15230         (vect_shift_permute_load_chain): Likewise.
15231         * tree-vect-slp.c (vect_build_slp_tree_1): Likewise.
15232         (vect_transform_slp_perm_load): Likewise.
15233         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
15234         (vectorizable_bswap): Likewise.
15235         (vect_gen_perm_mask_checked): Likewise.
15236         * fold-const.c (fold_ternary_loc): Likewise.  Don't take
15237         implementations of variable permutation vectors into account
15238         when deciding which selector to use.
15239         * tree-vect-loop.c (have_whole_vector_shift): Don't check whether
15240         vec_perm_const_optab is supported; instead use can_vec_perm_const_p
15241         with a false third argument.
15242         * tree-vect-generic.c (lower_vec_perm): Use can_vec_perm_const_p
15243         to test whether the constant selector is valid and can_vec_perm_var_p
15244         to test whether a variable selector is valid.
15245
15246 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
15247
15248         * optabs-query.h (can_vec_perm_p): Take a const vec_perm_indices *.
15249         * optabs-query.c (can_vec_perm_p): Likewise.
15250         * fold-const.c (fold_vec_perm): Take a const vec_perm_indices &
15251         instead of vec_perm_indices.
15252         * tree-vectorizer.h (vect_gen_perm_mask_any): Likewise,
15253         (vect_gen_perm_mask_checked): Likewise,
15254         * tree-vect-stmts.c (vect_gen_perm_mask_any): Likewise,
15255         (vect_gen_perm_mask_checked): Likewise,
15256
15257 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
15258
15259         * optabs-query.h (qimode_for_vec_perm): Declare.
15260         * optabs-query.c (can_vec_perm_p): Split out qimode search to...
15261         (qimode_for_vec_perm): ...this new function.
15262         * optabs.c (expand_vec_perm): Use qimode_for_vec_perm.
15263
15264 2018-01-02  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
15265
15266         * rtlanal.c (canonicalize_condition): Return 0 if final rtx
15267         does not have a conditional at the top.
15268
15269 2018-01-02  Richard Biener  <rguenther@suse.de>
15270
15271         * ipa-inline.c (big_speedup_p): Fix expression.
15272
15273 2018-01-02  Jan Hubicka  <hubicka@ucw.cz>
15274
15275         PR target/81616
15276         * config/i386/x86-tune-costs.h: Increase cost of integer load costs
15277         for generic 4->6.
15278
15279 2018-01-02  Jan Hubicka  <hubicka@ucw.cz>
15280
15281         PR target/81616
15282         Generic tuning.
15283         * x86-tune-costs.h (generic_cost): Reduce cost of FDIV 20->17,
15284         cost of sqrt 20->14, DIVSS 18->13, DIVSD 32->17, SQRtSS 30->14
15285         and SQRTsD 58->18, cond_not_taken_branch_cost. 2->1. Increase
15286         cond_taken_branch_cost 3->4.
15287
15288 2018-01-01  Jakub Jelinek  <jakub@redhat.com>
15289
15290         PR tree-optimization/83581
15291         * tree-loop-distribution.c (pass_loop_distribution::execute): Return
15292         TODO_cleanup_cfg if any changes have been made.
15293
15294         PR middle-end/83608
15295         * expr.c (store_expr_with_bounds): Use simplify_gen_subreg instead of
15296         convert_modes if target mode has the right side, but different mode
15297         class.
15298
15299         PR middle-end/83609
15300         * expr.c (expand_assignment): Fix up a typo in simplify_gen_subreg
15301         last argument when extracting from CONCAT.  If either from_real or
15302         from_imag is NULL, use expansion through memory.  If result is not
15303         a CONCAT and simplify_gen_subreg fails, try to simplify_gen_subreg
15304         the parts directly to inner mode, if even that fails, use expansion
15305         through memory.
15306
15307         PR middle-end/83623
15308         * expmed.c (expand_shift_1): For 2-byte rotates by BITS_PER_UNIT,
15309         check for bswap in mode rather than HImode and use that in expand_unop
15310         too.
15311 \f
15312 Copyright (C) 2018 Free Software Foundation, Inc.
15313
15314 Copying and distribution of this file, with or without modification,
15315 are permitted in any medium without royalty provided the copyright
15316 notice and this notice are preserved.