gcc/ChangeLog

   1 2018-04-10  Richard Sandiford  <richard.sandiford@linaro.org>
   2
   3         * final.c (final_1): Set insn_last_address as well as
   4         insn_current_address.
   5
   6 2018-04-10  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
   7
   8         PR target/85173
   9         * explow.c (emit_stack_probe): Call validize_mem on memory location
  10         before passing it to gen_probe_stack.  Create address operand and
  11         legitimize it for the probe_stack_address case.
  12
  13 2018-04-09  Jan Hubicka  <jh@suse.cz>
  14
  15         PR lto/85078
  16         * ipa-devirt.c (rebuild_type_inheritance-hash): New.
  17         * ipa-utils.h (rebuild_type_inheritance-hash): Declare.
  18         * tree.c (free_lang_data_in_type): Fix handling of binfos;
  19         walk basetypes.
  20         (free_lang_data): Rebuild type inheritance graph.
  21
  22 2018-04-09  Martin Sebor  <msebor@redhat.com>
  23
  24         * invoke.texi (-finline-small-functions): Mention other optimization
  25         options.
  26         (-findirect-inlining, -fpartial-inlining): Same.
  27         (-finline-functions-called-once): Same.
  28         (-freorder-blocks-and-partition): Same.
  29
  30 2018-04-09  Jan Hubicka  <jh@suse.cz>
  31
  32         PR rtl/84058
  33         * cfgcleanup.c (try_forward_edges): Do not give up on crossing
  34         jumps; choose last target that matches the criteria (i.e.
  35         no partition changes for non-crossing jumps).
  36         * cfgrtl.c (cfg_layout_redirect_edge_and_branch): Add basic
  37         support for redirecting crossing jumps to non-crossing.
  38
  39 2018-04-09  Alexey Brodkin  <abrodkin@synopsys.com>
  40
  41         * config/arc/arc.c (arc_expand_prologue): Set stack usage info
  42         also for naked functions.
  43
  44 2018-04-09  Claudiu Zissulescu  <claziss@synopsys.com>
  45
  46         * config/arc/arc.md (add_shift): New pattern.
  47         (add_shift2): Likewise.
  48         (sub_shift): Likewise.
  49         (sub_shift_cmp0_noout): Likewise.
  50         (compare_si_ashiftsi): Likewise.
  51         (xbfu_cmp0_noout): New combine pattern.
  52         (xbfu_cmp0"): Likewise.
  53         (movsi_set_cc_insn): Place the predicable variant first.
  54         (commutative_binary_cmp0_noout): Remove clobber.
  55         (commutative_binary_cmp0): New pattern.
  56         (noncommutative_binary_cmp0): Likewise.
  57         (noncommutative_binary_cmp0_noout): Likewise.
  58         (noncommutative_binary_comparison_result_used): Removed.
  59         (rsub_cmp0): New pattern.
  60         (rsub_cmp0_noout): Likewise.
  61         (extzvsi): Changed, keep only meaningful variants.
  62         (SQH, SEZ): New iterators.
  63         (SQH_postfix): New mode attribute.
  64         (SEZ_prefix): New code attribute.
  65         (<SEZ_prefix>xt<SQH_postfix>_cmp0_noout): New instruction pattern.
  66         (<SEZ_prefix>xt<SQH_postfix>_cmp0): Likewise.
  67         * config/arc/predicates.md (cc_set_register): Use CC_REG instead
  68         of numerical value.
  69         (noncommutative_operator): Check the availability of barrel
  70         shifter option.
  71
  72 2018-04-09  Richard Biener  <rguenther@suse.de>
  73
  74         PR tree-optimization/85284
  75         * tree-ssa-loop-niter.c (number_of_iterations_exit_assumptions):
  76         Only use the niter constraining form of simple_iv when the exit
  77         is always executed.
  78
  79 2018-04-09  Tom de Vries  <tom@codesourcery.com>
  80
  81         PR target/84041
  82         * config/nvptx/nvptx.md (define_c_enum "unspecv"): Add UNSPECV_MEMBAR.
  83         (define_expand "*memory_barrier"): New define_expand.
  84         (define_insn "memory_barrier"): New insn.
  85
  86 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
  87
  88         PR rtl-optimization/80463
  89         PR rtl-optimization/83972
  90         PR rtl-optimization/83480
  91
  92         * sel-sched-ir.c (has_dependence_note_mem_dep): Take into account the
  93         correct producer for the insn.
  94         (tidy_control_flow): Fixup seqnos in case of debug insns.
  95
  96 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
  97
  98         PR rtl-optimization/83913
  99
 100         * sel-sched-ir.c (merge_expr_data): Choose the middle between two
 101         different sched-times when merging exprs.
 102
 103 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
 104
 105         PR rtl-optimization/83962
 106
 107         * sel-sched-ir.c (tidy_control_flow): Correct the order in which we call
 108         tidy_fallthru_edge and tidy_control_flow.
 109
 110 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
 111
 112         PR rtl-optimization/83530
 113
 114         * sel-sched.c (force_next_insn): New global variable.
 115         (remove_insn_for_debug): When force_next_insn is true, also leave only
 116         next insn in the ready list.
 117         (sel_sched_region): When the region wasn't scheduled, make another pass
 118         over it with force_next_insn set to 1.
 119
 120 2018-04-08  Monk Chiang  <sh.chiang04@gmail.com>
 121
 122         * config.gcc (nds32le-*-*, nds32be-*-*): Add nds32/nds32_intrinsic.h
 123         into tm_file.
 124         * config/nds32/constants.md (unspec_volatile_element): Add enum values
 125         for interrupt control.
 126         * config/nds32/nds32-intrinsic.c: Implementation of intrinsic
 127         functions for interrupt control.
 128         * config/nds32/nds32-intrinsic.md: Likewise.
 129         * config/nds32/nds32_intrinsic.h: Likewise.
 130         * config/nds32/nds32.h (nds32_builtins): Likewise.
 131
 132 2018-04-08  Chung-Ju Wu  <jasonwucj@gmail.com>
 133
 134         * config/nds32/nds32.c (nds32_init_machine_status,
 135         nds32_legitimate_index_p, nds32_legitimate_address_p): Consider
 136         strict_aligned_p field.
 137         (nds32_expand_to_rtl_hook): New function.
 138         (TARGET_EXPAND_TO_RTL_HOOK): Define.
 139         * config/nds32/nds32.h (machine_function): Add strict_aligned_p field.
 140
 141 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
 142             Chung-Ju Wu  <jasonwucj@gmail.com>
 143
 144         * config.gcc (nds32*-*-*): Check that n7 is valid to --with-cpu.
 145         * config/nds32/nds32-n7.md: New file.
 146         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_N7.
 147         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n7
 148         pipeline.
 149         * config/nds32/nds32-protos.h: More declarations for n7 pipeline.
 150         * config/nds32/nds32.md (pipeline_model): Add n7.
 151         * config/nds32/nds32.opt (mcpu): Support n7 pipeline cpus.
 152         * config/nds32/pipelines.md: Include n7 settings.
 153
 154 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
 155             Chung-Ju Wu  <jasonwucj@gmail.com>
 156
 157         * config.gcc (nds32*-*-*): Check that e8 is valid to --with-cpu.
 158         * config/nds32/nds32-e8.md: New file.
 159         * config/nds32/nds32-opts.h (nds32-cpu_type): Add CPU_E8.
 160         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for e8
 161         pipeline.
 162         * config/nds32/nds32-protos.h: More declarations for e8 pipeline.
 163         * config/nds32/nds32.md (pipeline_model): Add e8.
 164         * config/nds32/nds32.opt (mcpu): Support e8 pipeline cpus.
 165         * config/nds32/pipelines.md: Include e8 settings.
 166
 167 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
 168             Chung-Ju Wu  <jasonwucj@gmail.com>
 169
 170         * config.gcc (nds32*-*-*): Check that n6/n8/s8 are valid to --with-cpu.
 171         * config/nds32/nds32-n8.md: New file.
 172         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_N6 and CPU_N8.
 173         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n8
 174         pipeline.
 175         * config/nds32/nds32-protos.h: More declarations for n8 pipeline.
 176         * config/nds32/nds32-utils.c: More implementations for n8 pipeline.
 177         * config/nds32/nds32.md (pipeline_model): Add n8.
 178         * config/nds32/nds32.opt (mcpu): Support n8 pipeline cpus.
 179         * config/nds32/pipelines.md: Include n8 settings.
 180
 181 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
 182             Chung-Ju Wu  <jasonwucj@gmail.com>
 183
 184         * config.gcc (nds32*): Add nds32-utils.o into extra_objs.
 185         * config/nds32/nds32-n9-2r1w.md: New file.
 186         * config/nds32/nds32-n9-3r2w.md: New file.
 187         * config/nds32/nds32-opts.h (nds32_cpu_type, nds32_mul_type,
 188         nds32_register_ports): New or modify for cpu n9.
 189         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n9
 190         pipeline.
 191         * config/nds32/nds32-protos.h: More declarations for n9 pipeline.
 192         * config/nds32/nds32-utils.c: New file.
 193         * config/nds32/nds32.h (TARGET_PIPELINE_N9, TARGET_PIPELINE_SIMPLE,
 194         TARGET_MUL_SLOW): Define.
 195         * config/nds32/nds32.md (pipeline_model): New attribute.
 196         * config/nds32/nds32.opt (mcpu, mconfig-mul, mconfig-register-ports):
 197         New options that support cpu n9.
 198         * config/nds32/pipelines.md: Include n9 settings.
 199         * config/nds32/t-nds32 (nds32-utils.o): Add dependency.
 200
 201 2018-04-08  Chung-Ju Wu  <jasonwucj@gmail.com>
 202
 203         * config/nds32/nds32-md-auxiliary.c (output_cond_branch): Output align
 204         information if necessary.
 205         (output_cond_branch_compare_zero): Likewise.
 206         * config/nds32/nds32.c (nds32_adjust_insn_length): Consider align case.
 207         (nds32_target_alignment): Refine for alignment.
 208         * config/nds32/nds32.h (NDS32_ALIGN_P): Define.
 209         (FUNCTION_BOUNDARY): Modify.
 210         * config/nds32/nds32.md (call_internal, call_value_internal): Consider
 211         align case.
 212         * config/nds32/nds32.opt (malways-align, malign-functions): New.
 213
 214 2018-04-08  Monk Chiang  <sh.chiang04@gmail.com>
 215
 216         * config/nds32/constants.md (unspec_volatile_element): Add values for
 217         TLB operation and data prefetch.
 218         * config/nds32/nds32-intrinsic.c: Implementation of intrinsic
 219         functions for TLB operation and data prefetch.
 220         * config/nds32/nds32-intrinsic.md: Likewise.
 221         * config/nds32/nds32_intrinsic.h: Likewise.
 222         * config/nds32/nds32.c (nds32_dpref_names): Likewise.
 223         (nds32_print_operand): Likewise.
 224         * config/nds32/nds32.h (nds32_builtins): Likewise.
 225
 226 2018-04-07  Thomas Koenig  <tkoenig@gcc.gnu.org>
 227         Andrew Pinski <pinsika@gcc.gnu.org>
 228
 229         PR middle-end/82976
 230         * match.pd: Use constant_boolean_node of correct type instead of
 231         boolean_true_node or boolean_false_node for simplifying
 232         pointer comparisons to zero.
 233
 234 2018-04-07  Jakub Jelinek  <jakub@redhat.com>
 235
 236         PR tree-optimization/80021
 237         * tree.c (verify_type_variant): Make error call in verify_variant_match
 238         translatable and remove final full stop.
 239
 240 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
 241
 242         * config/nds32/constants.md (unspec_volatile_element): Add
 243         UNSPEC_VOLATILE_EH_RETURN.
 244         * config/nds32/nds32-md-auxiliary.c (nds32_output_stack_push,
 245         nds32_output_stack_pop): Support dwarf exception handling process.
 246         * config/nds32/nds32-protos.h (nds32_dynamic_chain_address): Declare.
 247         * config/nds32/nds32.c (nds32_init_machine_status): Support dwarf
 248         exception handling process.
 249         (nds32_compute_stack_frame): Likewise.
 250         (nds32_return_addr_rtx): Likewise.
 251         (nds32_initial_elimination_offset): Likewise.
 252         (nds32_expand_prologue): Likewise.
 253         (nds32_expand_epilogue): Likewise.
 254         (nds32_dynamic_chain_address): New function.
 255         * config/nds32/nds32.h (machine_function): Add fields for dwarf
 256         exception handling.
 257         (DYNAMIC_CHAIN_ADDRESS): Define.
 258         (EH_RETURN_DATA_REGNO): Define.
 259         (EH_RETURN_STACKADJ_RTX): Define.
 260         * config/nds32/nds32.md (eh_return, nds32_eh_return): Implement
 261         patterns for dwarf exception handling.
 262
 263 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
 264
 265         * config/nds32/nds32.h: Clean up obsolete macros.
 266
 267 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
 268
 269         * config/nds32/constants.md (unspec_element, unspec_volatile_element):
 270         Add enum values for particular instructions.
 271         * config/nds32/nds32-intrinsic.c: Implementation of expanding
 272         particular intrinsic functions.
 273         * config/nds32/nds32-intrinsic.md: Likewise.
 274         * config/nds32/nds32_intrinsic.h: Likewise.
 275         * config/nds32/nds32.h (nds32_builtins): Likewise.
 276         * config/nds32/nds32.md (type): Add pbsad and pbsada.
 277         (btst, ave): New patterns for particular instructions.
 278
 279 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
 280
 281         * config/nds32/constants.md (unspec_element, unspec_volatile_element):
 282         Add enum values for atomic load/store and memory sync.
 283         * config/nds32/nds32-intrinsic.c: Implementation for atomic load/store
 284         and memory sync.
 285         * config/nds32/nds32-intrinsic.md: Likewise.
 286         * config/nds32/nds32_intrinsic.h: Likewise.
 287         * config/nds32/nds32.h (nds32_builtins): Likewise.
 288
 289 2018-04-07  Jakub Jelinek  <jakub@redhat.com>
 290
 291         PR tree-optimization/85257
 292         * fold-const.c (native_encode_vector): If not all elts could fit
 293         and off is -1, return 0 rather than offset.
 294         * tree-ssa-sccvn.c (vn_reference_lookup_3): Pass
 295         (offseti - offset2) / BITS_PER_UNIT as 4th argument to
 296         native_encode_expr.  Verify len * BITS_PER_UNIT >= maxsizei.  Don't
 297         adjust buffer in native_interpret_expr call.
 298
 299 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
 300
 301         * config/nds32/constants.md (unspec_volatile_element): Add cache
 302         control enum values.
 303         * config/nds32/nds32-intrinsic.c: Add cache control expand functions.
 304         * config/nds32/nds32-intrinsic.md: Add cache control patterns.
 305         * config/nds32/nds32.c (nds32_cctl_names): New.
 306         (nds32_print_operand): Handle cache control register names.
 307         * config/nds32/nds32.h (nds32_builtins): New enum values.
 308         * config/nds32/nds32_intrinsic.h: Add cache control enum types and
 309         macros.
 310         * config/nds32/nds32.md (type): Add mmu.
 311         * config/nds32/pipelines.md (simple_insn): Add mmu.
 312
 313 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
 314
 315         * config/nds32/nds32.md (type): Remove call.
 316         * config/nds32/pipelines.md (simple_insn): Likewise.
 317
 318 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
 319
 320         * config/nds32/constants.md (unspec_volatile_element): Add
 321         UNSPEC_VOLATILE_FMFCSR, UNSPEC_VOLATILE_FMTCSR and
 322         UNSPEC_VOLATILE_FMFCFG.
 323         * config/nds32/nds32-intrinsic.c (bdesc_noarg): New builtin
 324         description for fmfcfg and fmfcsr.
 325         (bdesc_1arg): Add fmtcsr.
 326         (bdesc_2arg): Add fcpynss, fcpyss, fcpynsd and fcpysd.
 327         (nds32_expand_builtin_impl): Deal with FPU intrinsic functions.
 328         * config/nds32/nds32-intrinsic.md (unspec_fcpynsd, unspec_fcpysd,
 329         unspec_fcpynss, unspec_fcpysd, unspec_fcpyss, unspec_fmfcsr,
 330         unspec_fmfcfg): New patterns.
 331         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_FMFCFG,
 332         NDS32_BUILTIN_FMFCSR, NDS32_BUILTIN_FMTCSR, NDS32_BUILTIN_FCPYNSS,
 333         NDS32_BUILTIN_FCPYSS,NDS32_BUILTIN_FCPYNSD and NDS32_BUILTIN_FCPYSD.
 334         * config/nds32/nds32_intrinsic.h (__nds32__fcpynsd, __nds32__fcpynss,
 335         __nds32__fcpysd, __nds32__fcpyss, __nds32__fmfcsr, __nds32__fmtcsr,
 336         __nds32__fmfcfg): Define.
 337
 338 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
 339
 340         * config/nds32/nds32.c (nds32_intrinsic_register_names): Add more
 341         intrinsic register names.
 342         * config/nds32/nds32_intrinsic.h (nds32_intrinsic_registers): Add more
 343         intrinsic register enum values and macros.
 344
 345 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
 346
 347         * config/nds32/nds32.c (nds32_legitimate_index_p): Modify condition
 348         for load/store addressing form.
 349         (nds32_print_operand_address): Likewise.
 350
 351 2018-04-06  Eric Botcazou  <ebotcazou@adacore.com>
 352
 353         PR target/85196
 354         * config/sparc/sparc.c (sparc_expand_move): Deal with symbolic operands
 355         based on LABEL_REF.  Remove useless assertion.
 356         (pic_address_needs_scratch): Fix formatting.
 357         (sparc_legitimize_pic_address): Minor tweaks.
 358         (sparc_delegitimize_address): Adjust assertion accordingly.
 359         * config/sparc/sparc.md (movsi_pic_label_ref): Change label_ref_operand
 360         into symbolic_operand.
 361         (movsi_high_pic_label_ref): Likewise.
 362         (movsi_lo_sum_pic_label_ref): Likewise.
 363         (movdi_pic_label_ref): Likewise.
 364         (movdi_high_pic_label_ref): Likewise.
 365         (movdi_lo_sum_pic_label_ref): Likewise.
 366
 367 2018-04-06  Amaan Cheval  <amaan.cheval@gmail.com>
 368
 369         * config.gcc (x86_64-*-rtems*): Add rtems.h to tm_file for
 370         custom LIB_SPEC setup.
 371
 372 2018-04-06  Ruslan Bukin  <br@bsdpad.com>
 373             Kito Cheng  <kito.cheng@gmail.com>
 374
 375         * config.gcc (riscv*-*-freebsd*): Add RISC-V FreeBSD support.
 376         * config/riscv/freebsd.h: New.
 377
 378 2018-04-06  Chung-Ju Wu  <jasonwucj@gmail.com>
 379
 380         * config/nds32/nds32.c (nds32_adjust_insn_length): Refine.
 381         * config/nds32/nds32.h (ADJUST_INSN_LENGTH): Change the location in
 382         file.
 383
 384 2018-04-06  Chung-Ju Wu  <jasonwucj@gmail.com>
 385             Kito Cheng  <kito.cheng@gmail.com>
 386
 387         * config/nds32/nds32-md-auxiliary.c (nds32_output_return,
 388         nds32_output_call, nds32_symbol_binds_local_p): New functions.
 389         * config/nds32/nds32-protos.h (nds32_output_call,
 390         nds32_output_return): Declare.
 391         * config/nds32/nds32.md: Refine all the call and return patterns.
 392
 393 2018-04-06  Jakub Jelinek  <jakub@redhat.com>
 394
 395         PR debug/85252
 396         * dwarf2out.c (rtl_for_decl_init): For STRING_CST initializer only
 397         build CONST_STRING if TYPE_MAX_VALUE is non-NULL and is INTEGER_CST.
 398
 399         PR rtl-optimization/84872
 400         * cfgloopmanip.c (create_preheader): Use make_forwarder_block even if
 401         nentry == 1 when CP_FALLTHRU_PREHEADERS and single_entry is
 402         EDGE_CROSSING edge.
 403
 404 2018-04-06  Tamar Christina  <tamar.christina@arm.com>
 405
 406         * expr.c (copy_blkmode_to_reg): Revert 254862.
 407         * doc/sourcebuild.texi (word_mode_no_slow_unalign): Likewise.
 408
 409 2018-04-06  Richard Biener  <rguenther@suse.de>
 410
 411         PR middle-end/85244
 412         * tree-dfa.c (get_ref_base_and_extent): Reset seen_variable_array_ref
 413         after seeing a component reference with an adjacent field.  Treat
 414         refs to arrays at struct end of external decls similar to
 415         refs to unconstrained commons.
 416
 417 2018-04-06  Jakub Jelinek  <jakub@redhat.com>
 418
 419         PR sanitizer/85213
 420         * fold-const.c (twoval_comparison_p): Remove SAVE_P argument and don't
 421         look through SAVE_EXPRs with non-side-effects argument.  Adjust
 422         recursive calls.
 423         (fold_comparison): Adjust twoval_comparison_p caller, don't handle
 424         save_p here.
 425
 426 2018-04-06  Richard Biener  <rguenther@suse.de>
 427
 428         PR middle-end/85180
 429         * alias.c (find_base_term): New wrapper around find_base_term
 430         unwinding CSELIB_VAL_PTR changes.
 431         (find_base_term): Do not restore CSELIB_VAL_PTR during the
 432         recursion.
 433
 434 2018-04-06  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
 435
 436         * config/s390/s390.c (s390_z10_optimize_cmp): Expand dedicated NOP
 437         instructions.
 438         * config/s390/s390.md (UNSPECV_NOP_LR_0, UNSPECV_NOP_LR_1): New
 439         constant definitions.
 440         ("nop"): lr 0,0 -> nopr r0
 441         ("nop_lr0", "nop_lr1"): New insn definitions.
 442
 443 2018-04-06  Chung-Ju Wu  <jasonwucj@gmail.com>
 444
 445         * config/nds32/nds32.md (*stack_push, *stack_pop): Use
 446         NDS32_V3PUSH_AVAILABLE_P macro.
 447
 448 2018-04-06  Monk Chiang  <sh.chiang04@gmail.com>
 449             Chung-Ju Wu  <jasonwucj@gmail.com>
 450
 451         * config.gcc (nds32*-*-*): Add v2j v3f v3s checking.
 452         (nds32*-*-*): Add float and fpu_config into supported_defaults.
 453         * common/config/nds32/nds32-common.c (TARGET_DEFAULT_TARGET_FLAGS):
 454         Include TARGET_DEFAULT_FPU_ISA and TARGET_DEFAULT_FPU_FMA.
 455         * config/nds32/constants.md (unspec_element): Add UNSPEC_COPYSIGN,
 456         UNSPEC_FCPYNSD, UNSPEC_FCPYNSS, UNSPEC_FCPYSD and UNSPEC_FCPYSS.
 457         * config/nds32/constraints.md: New constraints and checking for hard
 458         float configuration.
 459         * config/nds32/iterators.md: New mode iterator and attribute for hard
 460         float configuration.
 461         * config/nds32/nds32-doubleword.md: Use hard float alternatives and
 462         patterns.
 463         * config/nds32/nds32-fpu.md: New file.
 464         * config/nds32/nds32-md-auxiliary.c: New functions and checkings to
 465         deal with hard float code generation.
 466         * config/nds32/nds32-opts.h (nds32_arch_type): Add ARCH_V3F and
 467         ARCH_V3S.
 468         (abi_type, float_reg_number): New enum type.
 469         * config/nds32/nds32-predicates.c: New predicates for hard float.
 470         * config/nds32/nds32-protos.h: Declare functions for hard float.
 471         * config/nds32/nds32.c: Implementation for hard float configuration.
 472         * config/nds32/nds32.h: Definitions for hard float configuration.
 473         * config/nds32/nds32.md: Include hard float machine description and
 474         modify patterns for hard float configuration.
 475         * config/nds32/nds32.opt: New options for hard float configuration.
 476         * config/nds32/predicates.md: New predicates for hard float
 477         configuration.
 478
 479 2018-04-06  Kuan-Lin Chen  <kuanlinchentw@gmail.com>
 480
 481         * common/config/nds32/nds32-common.c
 482         (nds32_option_optimization_table): Enable -mreleax-hint by default.
 483
 484 2018-04-05  Jakub Jelinek  <jakub@redhat.com>
 485
 486         PR middle-end/85195
 487         * match.pd (BIT_FIELD_REF CONSTRUCTOR@0 @1 @2): Use view_convert around
 488         CONSTRUCTOR_ELT (ctor, ...)->value.
 489
 490 2018-04-05  Uros Bizjak  <ubizjak@gmail.com>
 491
 492         PR target/85193
 493         * config/i386/i386.md (define_attr "memory"): Handle rotate1 type.
 494
 495 2018-04-05  Tom de Vries  <tom@codesourcery.com>
 496
 497         PR target/85204
 498         * config/nvptx/nvptx.c (nvptx_single): Fix neutering of bb with only
 499         cond jump.
 500
 501 2018-04-05  Shiva Chen  <shiva0217@gmail.com>
 502             Kito Cheng  <kito.cheng@gmail.com>
 503
 504         * config/nds32/constraints.md (U33): Fine-tune checking condition.
 505         * config/nds32/nds32-md-auxiliary.c (nds32_mem_format): Ditto.
 506         * config/nds32/nds32.h (nds32_16bit_address_type): Add
 507         ADDRESS_POST_MODIFY_LO_REG_IMM3U.
 508
 509 2018-04-05  Shiva Chen  <shiva0217@gmail.com>
 510             Kito Cheng  <kito.cheng@gmail.com>
 511
 512         * config/nds32/constraints.md (Ufe): New memory constraint.
 513         * config/nds32/nds32-md-auxiliary.c (nds32_mem_format,
 514         nds32_output_16bit_load): Consider r8 register for lwi45.fe format.
 515         * config/nds32/nds32.c (nds32_print_operand): Output lwi45.fe
 516         operands.
 517         * config/nds32/nds32.h (nds32_16bit_address_type): Add ADDRESS_R8_IMM7U.
 518         * config/nds32/nds32.md (*mov<mode>): Adjust pattern.
 519
 520 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
 521
 522         * config/nds32/nds32.md: Use optimize_size in the condition for
 523         alu-shift instructions.
 524
 525 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
 526
 527         * config/nds32/nds32.md (divsi4, udivsi4): New patterns.
 528
 529 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
 530
 531         * config/nds32/nds32.md (negsi2): Refine pattern.
 532
 533 2018-04-05  Kito Cheng  <kito.cheng@gmail.com>
 534             Chung-Ju Wu  <jasonwucj@gmail.com>
 535
 536         * config/nds32/iterators.md (shift_rotate): New code iterator.
 537         (shift): New code attribute.
 538         * config/nds32/nds32-md-auxiliary.c (nds32_expand_constant): New.
 539         * config/nds32/nds32-protos.h (nds32_expand_constant): Declare.
 540         * config/nds32/nds32.c (nds32_print_operand): Deal with more cases.
 541         * config/nds32/nds32.md (addsi3, *add_srli): Refine implementation for
 542         bit-wise operations.
 543         (andsi3, *andsi3): Ditto.
 544         (iorsi3, *iorsi3, *or_slli, *or_srli): Ditto.
 545         (xorsi3, *xorsi3, *xor_slli, *xor_srli): Ditto.
 546         (<shift>si3, *ashlsi3, *ashrsi3, *lshrsi3, *rotrsi3): Ditto.
 547         * config/nds32/predicates.md (nds32_rimm5u_operand, nds32_and_operand,
 548         nds32_ior_operand, nds32_xor_operand): New predicates.
 549
 550 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
 551
 552         * config/nds32/nds32.md (add<mode>3, sub<mode>3): Rename to ...
 553         (addsi3, subsi3): ... this.
 554
 555 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
 556
 557         * config/nds32/nds32.md (*sub_srli, *and_slli): Fine-tune predicator.
 558
 559 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
 560
 561         * config/nds32/nds32.md: Adjust indention.
 562
 563 2018-04-05  Kito Cheng  <kito.cheng@gmail.com>
 564
 565         * config/nds32/nds32.md (feature): New attribute.
 566
 567 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
 568
 569         * config/nds32/nds32.md (subtype): New attribute.
 570
 571 2018-04-04  Thomas Preud'homme  <thomas.preudhomme@arm.com>
 572
 573         PR target/85203
 574         * config/arm/arm-builtins.c (arm_expand_builtin): Change
 575         expansion to perform a bitwise AND of the argument followed by a
 576         boolean negation of the result.
 577
 578 2018-04-04  Peter Bergner  <bergner@vnet.ibm.com>
 579
 580         PR rtl-optimization/84878
 581         * ddg.c (add_cross_iteration_register_deps): Use DF_REF_BB to determine
 582         the basic block.  Assert the use reference is not artificial and that
 583         it has an associated insn.
 584
 585 2018-04-04  Michael Matz  <matz@suse.de>
 586
 587         * builtins.c (compute_objsize): Pass correct operand
 588         to array_at_struct_end_p.
 589
 590 2018-04-04  Richard Biener  <rguenther@suse.de>
 591
 592         PR lto/85176
 593         * dwarf2out.c (dwarf2out_register_external_die): Peel namespaces
 594         from contexts for DINFO_LEVEL_TERSE and below.
 595
 596 2018-04-04  Kito Cheng  <kito.cheng@gmail.com>
 597
 598         * config/nds32/nds32-doubleword.md (move_<mode>): Require
 599         resiter_operand condition.
 600         * config/nds32/nds32.md (*move<mode>): Ditto.
 601
 602 2018-04-04  Kito Cheng  <kito.cheng@gmail.com>
 603             Monk Chiang  <sh.chiang04@gmail.com>
 604
 605         * config/nds32/nds32.md (movmisalign<mode>): New pattern.
 606
 607 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
 608
 609         * config/nds32/nds32.md (movqi, movhi): Merge into mov<mode>.
 610
 611 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
 612             Kito Cheng  <kito.cheng@gmail.com>
 613
 614         * config/nds32/nds32-md-auxiliary.c (nds32_inverse_cond_code,
 615         nds32_cond_code_str, output_cond_branch,
 616         output_cond_branch_compare_zero, nds32_expand_cbranch,
 617         nds32_expand_cstore, nds32_expand_movcc,
 618         nds32_output_cbranchsi4_equality_zero,
 619         nds32_output_cbranchsi4_equality_reg,
 620         nds32_output_cbranchsi4_equality_reg_or_const_int,
 621         nds32_output_cbranchsi4_greater_less_zero: New functions.
 622         * config/nds32/nds32-protos.h (nds32_expand_cbranch,
 623         nds32_expand_cstore, nds32_expand_movcc,
 624         nds32_output_cbranchsi4_equality_zero,
 625         nds32_output_cbranchsi4_equality_reg,
 626         nds32_output_cbranchsi4_equality_reg_or_const_int,
 627         nds32_output_cbranchsi4_greater_less_zero): Declare.
 628         * config/nds32/predicates.md (nds32_movecc_comparison_operator,
 629         nds32_rimm11s_operand): New predicates.
 630         * config/nds32/nds32.h (nds32_expand_result_type): New enum type.
 631         * config/nds32/nds32.md: Rewrite all the branch and conditional move
 632         patterns.
 633
 634 2018-04-04  Kito Cheng  <kito.cheng@gmail.com>
 635
 636         * config/nds32/nds32-doubleword.md: Refine all the instruction type.
 637         * config/nds32/nds32.md: Ditto.
 638         * config/nds32/pipelines.md: Ditto.
 639
 640 2018-04-04  Richard Biener  <rguenther@suse.de>
 641
 642         PR tree-optimization/85168
 643         * tree-ssa-sccvn.c (vn_reference_maybe_forwprop_address): Avoid
 644         propagating abnormals.
 645
 646 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
 647
 648         * config/nds32/nds32.md (enabled): Use yes/no for this attribute.
 649
 650 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
 651             Kito Cheng  <kito.cheng@gmail.com>
 652
 653         * config/nds32/nds32-md-auxiliary.c (nds32_long_call_p): New function.
 654         * config/nds32/nds32-protos.h (nds32_long_call_p): Declare.
 655         * config/nds32/nds32.c (nds32_function_ok_for_sibcall): New function.
 656         (TARGET_FUNCTION_OK_FOR_SIBCALL): Define.
 657         * config/nds32/nds32.md (sibcall_internal): New.
 658         (sibcall_register): Remove.
 659         (sibcall_immediate): Remove.
 660         (sibcall_value_internal): New.
 661         (sibcall_value_register): Remove.
 662         (sibcall_value_immediate): Remove.
 663         * config/nds32/predicates.md (nds32_general_register_operand): New.
 664         (nds32_call_address_operand): New.
 665
 666 2018-04-03  Jakub Jelinek  <jakub@redhat.com>
 667
 668         PR rtl-optimization/85167
 669         * shrink-wrap.c (move_insn_for_shrink_wrap): Don't set bb_uses and
 670         bb_defs if *split_p, instead preinitialize it to NULL.
 671
 672         PR tree-optimization/85156
 673         * builtins.c (fold_builtin_expect): Use save_expr on arg1 to avoid
 674         evaluating the argument multiple times.
 675
 676 2018-04-03  Bill Schmidt  <wschmidt@linux.ibm.com>
 677
 678         * config/rs6000/emmintrin.h (_mm_cvtpd_epi32): Use __vector rather
 679         than vector.
 680         (_mm_cvtpd_ps): Likewise.
 681         (_mm_cvttpd_epi32): Likewise.
 682         * config/rs6000/mmintrin.h (_mm_unpacklo_pi8): Likewise.
 683         * config/rs6000/xmmintrin.h: For strict-ANSI C++ or C11, undefine
 684         vector, pixel, and bool following altivec.h include.
 685
 686 2018-04-03  Martin Sebor  <msebor@redhat.com>
 687
 688         * doc/extend.texi (Common Function Attributes): Clarify.
 689         (const attribute): Likewise.
 690         (pure attribute): Likewise.
 691
 692 2018-04-03  Jakub Jelinek  <jakub@redhat.com>
 693
 694         PR target/85169
 695         * config/i386/i386.c (ix86_expand_vector_set): Use
 696         HOST_WIDE_INT_1U << elt instead of 1 << elt.  Formatting fix.
 697
 698 2018-04-03  Uros Bizjak  <ubizjak@gmail.com>
 699
 700         * config/i386/i386.c (emit_i387_cw_initialization): Always use logic
 701         instructions when changing rounding bits to preserve precision bits
 702         in the x87 control word.
 703
 704 2018-04-03  Martin Liska  <mliska@suse.cz>
 705
 706         PR tree-optimization/82491
 707         * rtl.h (strip_offset_and_add): Replace += suboffset with
 708         poly_uint64 () + suboffset.
 709
 710 2018-03-29  Martin Liska  <mliska@suse.cz>
 711             Martin Jambor  <mjambor@suse.cz>
 712
 713         PR ipa/84947
 714         * ipa-cp.c (propagate_bits_across_jump_function): Bail out if
 715         param_type is not an integral or pointer type.
 716
 717 2018-04-03  Richard Biener  <rguenther@suse.de>
 718
 719         * sese.h (recompute_all_dominators): Remove.
 720
 721 2018-04-02  Martin Sebor  <msebor@redhat.com>
 722
 723         * doc/invoke.texi (-Wrestrict): Fix typos.
 724
 725 2018-04-02  Jim Wilson  <jimw@sifive.com>
 726
 727         * config/riscv/riscv.h (SHIFT_COUNT_TRUNCATED): Set to zero.
 728         * config/riscv/riscv.md (<optab>si3): Use QImode shift count.
 729         (<optab>di3, <optab>si3_extend): Likewise.
 730         (<optab>si3_mask, <optab>si3_mask_1): New.
 731         (<optab>di3_mask, <optab>di3_mask_1): New.
 732         (<optab>si3_extend_mask, <optab>si3_extend_mask_1): New.
 733         (lshrsi3_zero_extend_1): Use VOIDmode shift count.
 734         * config/riscv/sync.md (atomic_test_and_set): Emit QImode shift count.
 735
 736 2018-04-02  Gerald Pfeifer  <gerald@pfeifer.com>
 737
 738         * doc/cpp.texi (Variadic Macros): Fix line continuation in an
 739         example.
 740
 741 2018-04-02  Chung-Ju Wu  <jasonwucj@gmail.com>
 742
 743         * config/nds32/nds32.c (TARGET_CANONICALIZE_COMPARISON): Define.
 744         (nds32_canonicalize_comparison): New function.
 745
 746 2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
 747             Kito Cheng  <kito.cheng@gmail.com>
 748             Kuan-Lin Chen  <kuanlinchentw@gmail.com>
 749
 750         * config.gcc (nds32): Add nds32-relax-opt.o into extra_objs.
 751         * config/nds32/constants.md (unspec_volatile_element): Add
 752         UNSPEC_VOLATILE_RELAX_GROUP.
 753         * config/nds32/nds32-relax-opt.c: New file.
 754         * config/nds32/nds32-predicates.c
 755         (nds32_symbol_load_store_p): New function.
 756         * config/nds32/nds32-protos.h
 757         (nds32_symbol_load_store_p): Declare function.
 758         (make_pass_nds32_relax_opt): Declare new rtl pass function.
 759         * config/nds32/nds32.c
 760         (nds32_register_pass): New function to register pass.
 761         (nds32_register_passes): New function to register passes.
 762         * config/nds32/nds32.md (relax_group): New pattern.
 763         * config/nds32/nds32.opt (mrelax-hint): New option.
 764         * config/nds32/t-nds32 (nds32-relax-opt.o): New dependency.
 765
 766 2018-04-01  Kito Cheng  <kito.cheng@gmail.com>
 767
 768         * config/nds32/t-nds32: Modify files dependency.
 769
 770 2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
 771
 772         * config/nds32/nds32.h (FUNCTION_PROFILER): Output newline character.
 773         (PROFILE_HOOK): Define its implementation.
 774
 775 2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
 776
 777         * config/nds32/nds32.h (WCHAR_TYPE, WCHAR_TYPE_SIZE): Use unsigned int
 778         type and 32-bit size.
 779
 780 2018-04-01  Jakub Jelinek  <jakub@redhat.com>
 781
 782         PR middle-end/85090
 783         * config/i386/sse.md (V): Add V64QI and V32HI for TARGET_AVX512F.
 784         (V_128_256): New mode iterator.
 785         (*avx512dq_vextract<shuffletype>64x2_1 splitter): New define_split.
 786         (*avx512f_vextract<shuffletype>32x4_1 splitter): Likewise.
 787         (xop_pcmov_<mode><avxsizesuffix>): Use V_128_256 mode iterator instead
 788         of V.
 789         * config/i386/i386.c (ix86_expand_vector_set): Improve V32HImode and
 790         V64QImode expansion for !TARGET_AVX512BW && TARGET_AVX512F.
 791
 792 2018-03-31  Segher Boessenkool  <segher@kernel.crashing.org>
 793
 794         PR target/83315
 795         * config/rs6000/xmmintrin.h (_mm_set_ps, _mm_max_ps): Handle (quiet)
 796         NaN inputs correctly.
 797
 798 2018-03-30  Peter Bergner  <bergner@vnet.ibm.com>
 799
 800         PR target/80546
 801         * config/rs6000/vsx.md (??r): New mode attribute.
 802         (*vsx_mov<mode>_64bit): Use it.
 803         (*vsx_mov<mode>_32bit): Likewise.
 804
 805 2018-03-30  Martin Sebor  <msebor@redhat.com>
 806
 807         PR tree-optimization/84818
 808         * builtins.c (check_access): Use warning_n.
 809
 810 2018-03-30  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
 811
 812         PR target/83822
 813         * config/rs6000/rs6000-string.c (expand_compare_loop): Fix redundant
 814         condition.
 815         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Fix redundant
 816         condition.
 817
 818 2018-03-30  Julia Koval  <julia.koval@intel.com>
 819
 820         PR target/84413
 821         * x86-tune.def (movx, partial_reg_dependency): Enable for
 822         m_SKYLAKE_AVX512.
 823
 824 2018-03-29  Vladimir Makarov  <vmakarov@redhat.com>
 825
 826         PR inline-asm/84985
 827         * lra-constraints.c (process_alt_operands): Move setting
 828         this_alternative_matches below.
 829
 830 2018-03-29  Martin Liska  <mliska@suse.cz>
 831
 832         PR lto/84995.
 833         * doc/invoke.texi: Document how LTO works with debug info.
 834         Describe auto-load support of binutils.  Mention 'x86-64'
 835         as valid option value of -march option.
 836
 837 2018-03-29  Jakub Jelinek  <jakub@redhat.com>
 838
 839         * config/i386/sse.md (<avx512>_blendm<mode>): Use <sseintprefix>.
 840
 841         PR c/85094
 842         * fold-const.c (operand_equal_p): Handle DEBUG_BEGIN_STMT.
 843         For STATEMENT_LIST, pass down OEP_LEXICOGRAPHIC and maybe
 844         OEP_NO_HASH_CHECK for recursive call, to avoid exponential
 845         checking.
 846
 847 2018-03-28  Peter Bergner  <bergner@vnet.ibm.com>
 848
 849         PR target/84912
 850         * config/rs6000/rs6000.h (RS6000_BTM_POWERPC64): New define.
 851         (RS6000_BTM_COMMON): Add RS6000_BTM_POWERPC64.
 852         * config/rs6000/rs6000.c (rs6000_builtin_mask_calculate): Add support
 853         for RS6000_BTM_POWERPC64.
 854         (rs6000_invalid_builtin): Add handling for RS6000_BTM_POWERPC64
 855         (rs6000_builtin_mask_names): Add RS6000_BTM_POWERPC64.
 856         * config/rs6000/rs6000-builtin.def (BU_P7_POWERPC64_MISC_2): New macro
 857         definition.
 858         (DIVDE): Use it.
 859         (DIVDEU): Likewise.
 860
 861 2018-03-28 Carl Love  <cel@us.ibm.com>
 862
 863         Revert
 864         2017-09-27  Carl Love  <cel@us.ibm.com>
 865
 866         * config/rs6000/rs6000-builtin.def (BU_FP_1MISC_1): Add define macro.
 867         (FCTID, FCTIW): Add BU_FP_MISC_1 macro expansion for builtins.
 868         * config/rs6000/rs6000.md (lrintsfsi2): Add define_insn for the
 869         fctiw instruction.
 870
 871 2018-03-28  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
 872
 873         * config/rs6000/xmmintrin.h (_mm_max_pi16): Use __vector __bool
 874         instead of __vector bool.
 875         (_mm_max_pu8): Likewise.
 876         (_mm_min_pi16): Likewise.
 877
 878 2018-03-28  Peter Bergner  <bergner@vnet.ibm.com>
 879
 880         PR target/84912
 881         * config/rs6000/rs6000-builtin.def (DIVWEO): Delete macro expansion.
 882         (DIVWEUO): Likewise.
 883         (DIVDEO): Likewise.
 884         (DIVDEUO): Likewise.
 885         * config/rs6000/rs6000.c (builtin_function_type): Remove support for
 886         DIVWEUO and DIVDEUO.
 887         * config/rs6000/rs6000.md (UNSPEC_DIVEO, UNSPEC_DIVEUO): Delete unspecs.
 888         (UNSPEC_DIV_EXTEND): Remove deleted unspecs.
 889         (div_extend): Likewise.
 890         * doc/extend.texi (__builtin_divweo): Remove documentation for deleted
 891         builtin function.
 892         (__builtin_divweuo): Likewise.
 893         (__builtin_divdeo): Likewise.
 894         (__builtin_divdeuo): Likewise.
 895
 896 2018-03-28  Jakub Jelinek  <jakub@redhat.com>
 897
 898         PR target/85095
 899         * config/i386/i386.md (*add<mode>3_carry_0, *addsi3_carry_zext_0,
 900         *sub<mode>3_carry_0, *subsi3_carry_zext_0): New patterns.
 901
 902         PR tree-optimization/82004
 903         * gimple-match-head.c (optimize_pow_to_exp): New function.
 904         * match.pd (pow(C,x) -> exp(log(C)*x)): Wrap with #if GIMPLE.
 905         Don't fold to exp if optimize_pow_to_exp is false.
 906
 907 2018-03-28  Martin Liska  <mliska@suse.cz>
 908
 909         PR other/84819
 910         * calls.c (initialize_argument_information): Fix trailing space.
 911         * common.opt: Fix typo and provide better explanation for
 912         -fsanitize-coverage option.
 913         * config/i386/i386.opt: Fix typo.
 914
 915 2018-03-28  Jakub Jelinek  <jakub@redhat.com>
 916             Martin Liska  <mliska@suse.cz>
 917
 918         PR sanitizer/85081
 919         * gimplify.c (asan_poison_variable): Don't do the check for
 920         gimplify_omp_ctxp here.
 921         (gimplify_decl_expr): Do it here.
 922         (gimplify_target_expr): Likewise.
 923
 924 2018-03-28  Martin Liska  <mliska@suse.cz>
 925
 926         PR target/84988
 927         * config/i386/i386.c (ix86_function_arg_advance): Do not call
 928         chkp_type_bounds_count if MPX is not enabled.
 929
 930 2018-03-27  Chung-Ju Wu  <jasonwucj@gmail.com>
 931
 932         * config/nds32/nds32.h (BRANCH_COST): Adjust cost.
 933
 934 2018-03-27  Michael Meissner  <meissner@linux.vnet.ibm.com>
 935
 936         PR target/84914
 937         * config/rs6000/rs6000.c (create_complex_muldiv): New helper
 938         function to create the function decl for complex long double
 939         multiply and divide for -mabi=ieeelongdouble.
 940         (init_float128_ieee): Call it.
 941
 942 2018-03-27  H.J. Lu  <hongjiu.lu@intel.com>
 943
 944         PR target/85044
 945         * config/i386/i386.c (ix86_trampoline_init): Insert ENDBR for
 946         -fcf-protection=branch -mibt.
 947         * config/i386/i386.h (TRAMPOLINE_SIZE): Increased by 4 bytes.
 948
 949 2018-03-27  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
 950
 951         PR target/81863
 952         * config/arm/arm.c (arm_valid_symbolic_address): Handle arm_word_relocations
 953
 954 2018-03-27  Cesar Philippidis  <cesar@codesourcery.com>
 955
 956         PR target/85056
 957         * config/nvptx/nvptx.c (nvptx_assemble_decl_begin): Add '[]' to
 958         extern array declarations.
 959
 960 2018-03-27  Richard Biener  <rguenther@suse.de>
 961
 962         PR middle-end/84067
 963         * match.pd ((A * C) +- (B * C) -> (A+-B) * C): Guard with
 964         explicit single_use checks.
 965
 966 2018-03-27  Richard Biener  <rguenther@suse.de>
 967
 968         PR tree-optimization/85082
 969         * tree-ssa-sccvn.c (vn_reference_lookup_or_insert_for_pieces):
 970         Valueize the VUSE.
 971
 972 2018-03-27  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
 973
 974         * config.gcc (aarch64*-*-linux*): New TARGET_DEFAULT_ASYNC_UNWIND_TABLES
 975         * common/config/aarch64/aarch64-common.c (aarch64_optimization_table[]):
 976         Turn on fasynchronous-unwind-tables and funwind-tables.
 977
 978 2018-03-26  Uros Bizjak  <ubizjak@gmail.com>
 979
 980         PR target/85073
 981         * config/i386/i386.md (*bmi_blsr_<mode>_cmp): New insn pattern.
 982         (*bmi_blsr_<mode>_ccz): Ditto.
 983
 984 2018-03-26  Tom de Vries  <tom@codesourcery.com>
 985
 986         PR tree-optimization/85063
 987         * omp-general.c (offloading_function_p): New function.  Factor out
 988         of ...
 989         * omp-offload.c (pass_omp_target_link::gate): ... here.
 990         * omp-general.h (offloading_function_p): Declare.
 991         * tree-switch-conversion.c (build_one_array): Mark CSWTCH.x variable
 992         with attribute omp declare target for offloading functions.
 993
 994 2018-03-24  Richard Sandiford  <richard.sandiford@linaro.org>
 995
 996         PR tree-optimization/84005
 997         * tree-data-ref.h (get_base_for_alignment): Declare.
 998         * tree-data-ref.c (get_base_for_alignment_1): New function.
 999         (get_base_for_alignment): Likewise.
1000         * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Use
1001         get_base_for_alignment to find a suitable base object, instead
1002         of always using drb->base_address.
1003
1004 2018-03-23  Jakub Jelinek  <jakub@redhat.com>
1005
1006         PR inline-asm/85022
1007         * emit-rtl.c (init_emit_regs): Indicate that VOIDmode MEMs don't have
1008         known size by default.
1009
1010 2018-03-23  Vladimir Makarov  <vmakarov@redhat.com>
1011
1012         PR inline-asm/85030
1013         * lra-constraints.c (process_alt_operands): Don't match BLKmode
1014         and non BLKmode operands.
1015
1016 2018-03-23  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1017
1018         PR target/85026
1019         * config/arm/arm.md (unaligned_loadhis): Remove first alternative.
1020         Clean up attributes.
1021
1022 2018-03-23  Richard Biener  <rguenther@suse.de>
1023
1024         PR debug/85020
1025         * dwarf2out.c (rtl_for_decl_location): Do not generate RTL early when
1026         we are going to emit early debug for LTO.
1027
1028 2018-03-23  Jakub Jelinek  <jakub@redhat.com>
1029
1030         PR inline-asm/85034
1031         * function.c (match_asm_constraints_1): Don't optimize if input
1032         doesn't satisfy general_operand predicate for output's mode.
1033
1034         PR inline-asm/85022
1035         * alias.c (write_dependence_p): Don't require for x_canonicalized
1036         non-VOIDmode if x has VOIDmode.
1037
1038         PR sanitizer/85029
1039         * sanopt.c (maybe_optimize_ubsan_ptr_ifn): If DECL_REGISTER (base),
1040         just don't try to optimize it rather than assert it never happens.
1041
1042 2018-03-22  Kelvin Nilsen  <kelvin@gcc.gnu.org>
1043
1044         * config/rs6000/rs6000-builtin.def: Remove various BU_ALTIVEC_X
1045         macro expansions for definition of ST_INTERNAL_<mode> and
1046         LD_INTERNAL_<mode> builtins.
1047         * config/rs6000/rs6000-protos.h (rs6000_address_for_altivec):
1048         Remove prototype.
1049         * config/rs6000/rs6000.c (altivec_expand_ld_builtin): Delete this
1050         function.
1051         (altivec_expand_st_builtin): Likewise.
1052         (altivec_expand_builtin): Remove calls to deleted functions.
1053         (rs6000_address_for_altivec): Delete this function.
1054         * config/rs6000/vector.md: Remove expands for
1055         vector_altivec_load_<mode> and vector_altivec_store_<mode>.
1056
1057 2018-03-22  Sudakshina Das  <sudi.das@arm.com>
1058
1059         PR target/84826
1060         * config/arm/arm.h (machine_function): Add static_chain_stack_bytes.
1061         * config/arm/arm.c (arm_compute_static_chain_stack_bytes): Avoid
1062         re-computing once computed.
1063         (arm_expand_prologue): Compute machine->static_chain_stack_bytes.
1064         (arm_init_machine_status): Initialize
1065         machine->static_chain_stack_bytes.
1066
1067 2018-03-22  Kelvin Nilsen  <kelvin@gcc.gnu.org>
1068
1069         PR target/84760
1070         * doc/extend.texi: Add four new prototypes for vec_ld.
1071         * config/rs6000/rs6000-builtin.def (LVX_V1TI): Reorder symbol
1072         definitions for more logical presentation.
1073         * config/rs6000/rs6000-c.c: (altivec_overloaded_builtins): Add
1074         entries for V1TI variants of __builtin_altivec_ld builtin.
1075         * config/rs6000/rs6000.c: (altivec_expand_lv_builtin): Add test and
1076         handling of V1TI variant of LVX icode pattern.
1077         (altivec_expand_builtin): Add case for ALTIVEC_BUILTIN_LVX_V1TI.
1078         (rs6000_gimple_fold_builtin): Likewise.
1079         (altivec_init_builtins): Add code to define
1080         __builtin_altivec_lvx_v1ti function.
1081
1082 2018-03-22  Jakub Jelinek  <jakub@redhat.com>
1083
1084         PR inline-asm/84941
1085         * function.c (match_asm_constraints_1): Don't do the optimization
1086         if input isn't a REG, SUBREG, MEM or constant.
1087
1088 2018-03-22  Tom de Vries  <tom@codesourcery.com>
1089
1090         PR tree-optimization/84956
1091         * tree-ssa-tail-merge.c (find_clusters_1): Skip bbs with
1092         bb_has_abnormal_pred.
1093
1094 2018-03-22  Jakub Jelinek  <jakub@redhat.com>
1095
1096         PR sanitizer/85018
1097         * dwarf2asm.c (dw2_output_indirect_constant_1): Set
1098         DECL_INITIAL (decl) to decl at the end.
1099         * varasm.c (use_blocks_for_decl_p): Revert the 2018-03-20 change,
1100         adjust the comment.
1101
1102 2018-03-21  Joseph Myers  <joseph@codesourcery.com>
1103
1104         * doc/extend.texi (__builtin_tgmath): Document when complex
1105         integer types are treated as _Complex _Float64.
1106
1107 2018-03-21  Tom de Vries  <tom@codesourcery.com>
1108
1109         * doc/extend.texi (__builtin_extend_pointer): Remove pasto.
1110
1111 2018-03-21  Jakub Jelinek  <jakub@redhat.com>
1112
1113         PR tree-optimization/84960
1114         * tree-cfg.c (remove_bb): Don't move forced labels into bb->prev_bb
1115         if it is ENTRY block, move them into single succ of ENTRY in that case.
1116
1117 2018-03-21  Richard Sandiford  <richard.sandiford@linaro.org>
1118
1119         PR tree-optimization/84811
1120         * poly-int.h (poly_span_traits): Remove the T3 parameter and
1121         promote HOST_WIDE_INT T2 - T1 results to unsigned HOST_WIDE_INT.
1122         (maybe_in_range_p, known_in_range_p, ranges_known_overlap_p):
1123         (known_subrange_p): Update accordingly.  Cast each value involved
1124         in the size comparison, rather than casting the result of the
1125         subtraction.
1126
1127 2018-03-21  Jakub Jelinek  <jakub@redhat.com>
1128
1129         PR tree-optimization/84982
1130         * gimple-ssa-store-merging.c (invert_op): Handle boolean inversion
1131         by flipping the least significant bit rather than all bits from
1132         bitpos to bitpos + bitsize - 1.
1133
1134 2018-03-21  Nathan Sidwell  <nathan@acm.org>
1135
1136         * doc/extend.texi (Deprecated Features): Remove mention of
1137         long-deleted deprecations.
1138
1139 2018-03-21  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1140
1141         PR jit/84288
1142         * configure.ac (gcc_cv_ld_soname) <*-*-solaris2*>: Set.
1143         * configure: Regenerate.
1144
1145 2018-03-21  Tom de Vries  <tom@codesourcery.com>
1146
1147         PR tree-optimization/83126
1148         * tree-parloops.c (num_phis): New function.
1149         (gen_parallel_loop): Detect and handle canonicalize_loop_ivs failure.
1150
1151 2018-03-21  Nathan Sidwell  <nathan@acm.org>
1152
1153         * doc/extend.texi (Deprecated Features): Update deprecated flags,
1154         mention anon-struct/union members and trailing attributes.
1155
1156 2018-03-21  Bin Cheng  <bin.cheng@arm.com>
1157
1158         PR tree-optimization/84969
1159         * tree-loop-distribution.c (fuse_memset_builtins): Don't reorder
1160         builtin memset partitions if they set different rhs values.
1161
1162 2018-03-21  Jakub Jelinek  <jakub@redhat.com>
1163
1164         PR rtl-optimization/84989
1165         * simplify-rtx.c (simplify_unary_operation_1): Don't try to simplify
1166         VEC_DUPLICATE with scalar result mode.
1167
1168 2018-03-21  Martin Liska  <mliska@suse.cz>
1169
1170         PR ipa/84963
1171         * ipa-icf.c (sem_item_optimizer::fixup_points_to_sets): Remove
1172         not intended return statement.
1173
1174 2018-03-21  Martin Liska  <mliska@suse.cz>
1175
1176         PR target/84988
1177         * tree-chkp.c (CHKP_ARRAY_MAX_CHECK_STEPS): Define a new macro.
1178         (chkp_find_bound_slots_1): Limit number of iterations.
1179
1180 2018-03-20  David H. Gutteridge  <dhgutteridge@sympatico.ca>
1181
1182         PR target/84838
1183         * Minor grammar fixes for x86 options.
1184
1185 2018-03-20  Jakub Jelinek  <jakub@redhat.com>
1186
1187         PR debug/84875
1188         * dce.c (delete_unmarked_insns): Don't remove frame related noop moves
1189         holding REG_CFA_RESTORE notes, instead turn them into a USE.
1190
1191 2018-03-20  Peter Bergner  <bergner@vnet.ibm.com>
1192
1193         PR target/83789
1194         * config/rs6000/altivec.md (altivec_lvx_<mode>_2op): Delete define_insn.
1195         (altivec_lvx_<mode>_1op): Likewise.
1196         (altivec_stvx_<mode>_2op): Likewise.
1197         (altivec_stvx_<mode>_1op): Likewise.
1198         (altivec_lvx_<VM2:mode>): New define_expand.
1199         (altivec_stvx_<VM2:mode>): Likewise.
1200         (altivec_lvx_<VM2:mode>_2op_<P:mptrsize>): New define_insn.
1201         (altivec_lvx_<VM2:mode>_1op_<P:mptrsize>): Likewise.
1202         (altivec_stvx_<VM2:mode>_2op_<P:mptrsize>): Likewise.
1203         (altivec_stvx_<VM2:mode>_1op_<P:mptrsize>): Likewise.
1204         * config/rs6000/rs6000-p8swap.c (rs6000_gen_stvx): Use new expanders.
1205         (rs6000_gen_lvx): Likewise.
1206         * config/rs6000/rs6000.c (altivec_expand_lv_builtin): Likewise.
1207         (altivec_expand_stv_builtin): Likewise.
1208         (altivec_expand_builtin): Likewise.
1209         * config/rs6000/vector.md: Likewise.
1210
1211 2018-03-20  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1212
1213         PR target/82518
1214         * config/arm/arm.c (arm_array_mode_supported_p): Return false for
1215         BYTES_BIG_ENDIAN.
1216
1217 2018-03-20  Richard Biener  <rguenther@suse.de>
1218
1219         PR target/84986
1220         * config/i386/i386.c (ix86_add_stmt_cost): Only cost
1221         sign-conversions as zero, fall back to standard scalar_stmt
1222         cost for the rest.
1223
1224 2018-03-20  Martin Liska  <mliska@suse.cz>
1225
1226         PR ipa/84825
1227         * predict.c (rebuild_frequencies): Handle case when we have
1228         PROFILE_ABSENT, but flag_guess_branch_prob is false.
1229
1230 2018-03-20  Jakub Jelinek  <jakub@redhat.com>
1231
1232         PR target/84990
1233         * dwarf2asm.c (dw2_output_indirect_constant_1): Temporarily turn off
1234         flag_section_anchors.
1235         * varasm.c (use_blocks_for_decl_p): Remove hack for
1236         dw2_force_const_mem.
1237
1238         PR target/84845
1239         * config/aarch64/aarch64.md (*aarch64_reg_<mode>3_neg_mask2): Rename
1240         to ...
1241         (*aarch64_<optab>_reg_<mode>3_neg_mask2): ... this.  If pseudos can't
1242         be created, use lowpart_subreg of operands[0] rather than operands[0]
1243         itself.
1244         (*aarch64_reg_<mode>3_minus_mask): Rename to ...
1245         (*aarch64_ashl_reg_<mode>3_minus_mask): ... this.
1246         (*aarch64_<optab>_reg_di3_mask2): Use const_int_operand predicate
1247         and n constraint instead of aarch64_shift_imm_di and Usd.
1248         (*aarch64_reg_<optab>_minus<mode>3): Rename to ...
1249         (*aarch64_<optab>_reg_minus<mode>3): ... this.
1250
1251 2018-03-20  Sudakshina Das  <sudi.das@arm.com>
1252
1253         PR target/82989
1254         * config/arm/neon.md (ashldi3_neon): Update ?s for constraints
1255         to favor GPR over NEON registers.
1256         (<shift>di3_neon): Likewise.
1257
1258 2018-03-20  Tom de Vries  <tom@codesourcery.com>
1259
1260         PR target/84952
1261         * config/nvptx/nvptx.c (nvptx_single): Don't neuter bar.sync.
1262         (nvptx_process_pars): Emit bar.sync asap and alap.
1263
1264 2018-03-20  Tom de Vries  <tom@codesourcery.com>
1265
1266         PR target/84954
1267         * config/nvptx/nvptx.c (prevent_branch_around_nothing): Also update
1268         seen_label if seen_label is already set.
1269
1270 2018-03-20  Jakub Jelinek  <jakub@redhat.com>
1271
1272         PR target/84945
1273         * config/i386/i386.c (fold_builtin_cpu): For features above 31
1274         use __cpu_features2 variable instead of __cpu_model.__cpu_features[0].
1275         Use 1U instead of 1.  Formatting fixes.
1276
1277         PR c/84953
1278         * builtins.c (fold_builtin_strpbrk): For strpbrk(x, "") use type
1279         instead of TREE_TYPE (s1) for the return value.
1280
1281 2018-03-19  Jakub Jelinek  <jakub@redhat.com>
1282
1283         PR tree-optimization/84946
1284         * gimple-ssa-store-merging.c (mem_valid_for_store_merging): Compute
1285         bitsize + bitsize in poly_uint64 rather than poly_int64.
1286
1287         PR sanitizer/78651
1288         * dwarf2asm.c: Include fold-const.c.
1289         (dw2_output_indirect_constant_1): Set DECL_INITIAL (decl) to ADDR_EXPR
1290         of decl rather than decl itself.
1291
1292         PR rtl-optimization/84643
1293         * memmodel.h (enum memmodel): Add MEMMODEL_MAX enumerator.
1294
1295 2018-03-19  Maxim Ostapenko  <m.ostapenko@samsung.com>
1296
1297         PR sanitizer/78651
1298         * dwarf2asm.c (dw2_output_indirect_constant_1): Disable ASan before
1299         calling assemble_variable.
1300
1301 2018-03-19  Sudakshina Das  <sudi.das@arm.com>
1302
1303         PR target/81647
1304         * config/aarch64/aarch64-simd.md (vec_cmp<mode><v_int_equiv>): Modify
1305         instructions for UNLT, UNLE, UNGT, UNGE, UNEQ, UNORDERED and ORDERED.
1306
1307 2018-03-19  Jim Wilson  <jimw@sifive.com>
1308
1309         PR bootstrap/84856
1310         * config/riscv/riscv.c (riscv_function_arg_boundary): Use
1311         PREFERRED_STACK_BOUNDARY instead of STACK_BOUNDARY.
1312         (riscv_first_stack_step): Likewise.
1313         (riscv_option_override): Use STACK_BOUNDARY instead of
1314         MIN_STACK_BOUNDARY.
1315         * config/riscv/riscv.h (STACK_BOUNDARY): Renamed from
1316         MIN_STACK_BOUNDARY.
1317         (BIGGEST_ALIGNMENT): Set to 128.
1318         (PREFERRED_STACK_BOUNDARY): Renamed from STACK_BOUNDARY.
1319         (RISCV_STACK_ALIGN): Use PREFERRED_STACK_BOUNDARY instead of
1320         STACK_BOUNDARY.
1321
1322 2018-03-19  Richard Biener  <rguenther@suse.de>
1323
1324         PR tree-optimization/84933
1325         * tree-vrp.c (set_and_canonicalize_value_range): Treat out-of-bound
1326         values as -INF/INF when canonicalizing an ANTI_RANGE to a RANGE.
1327
1328 2018-03-19  Richard Biener  <rguenther@suse.de>
1329
1330         PR tree-optimization/84859
1331         * tree-ssa-phiopt.c (single_trailing_store_in_bb): New function.
1332         (cond_if_else_store_replacement): Perform sinking operation on
1333         single-store BBs regardless of MAX_STORES_TO_SINK setting.
1334         Generalize what a BB with a single eligible store is.
1335
1336 2018-03-19  Richard Biener  <rguenther@suse.de>
1337
1338         PR tree-optimization/84929
1339         * tree-data-ref.c (analyze_siv_subscript_cst_affine): Guard
1340         chrec_is_positive against non-chrec arg.
1341
1342 2018-03-19  Tamar Christina  <tamar.christina@arm.com>
1343
1344         PR target/84711
1345         * config/arm/arm.c (arm_can_change_mode_class): revert r258554.
1346
1347 2018-03-18  Martin Liska  <mliska@suse.cz>
1348
1349         PR rtl-optimization/84635
1350         * regrename.c (build_def_use): Use matches_mode only when
1351         matches >= 0.
1352
1353 2018-03-18  Richard Sandiford  <richard.sandiford@linaro.org>
1354
1355         PR tree-optimization/84913
1356         * tree-vect-loop.c (vectorizable_reduction): Don't try to
1357         vectorize chains of COND_EXPRs.
1358
1359 2018-03-18  Chung-Ju Wu  <jasonwucj@gmail.com>
1360
1361         * config/nds32/nds32.h (MAX_REGS_PER_ADDRESS): Fix the value.
1362
1363 2018-03-18  Chung-Ju Wu  <jasonwucj@gmail.com>
1364
1365         * config/nds32/nds32.h (LOGICAL_OP_NON_SHORT_CIRCUIT): Define.
1366
1367 2018-03-18  Chung-Ju Wu  <jasonwucj@gmail.com>
1368
1369         * config/nds32/nds32.h (CLZ_DEFINED_VALUE_AT_ZERO): Define.
1370
1371 2018-03-17  Chung-Ju Wu  <jasonwucj@gmail.com>
1372             Kito Cheng  <kito.cheng@gmail.com>
1373
1374         * config/nds32/nds32-protos.h (nds32_adjust_reg_alloc_order): Declare.
1375         * config/nds32/nds32.c (nds32_reg_alloc_order_for_speed): New array.
1376         (nds32_adjust_reg_alloc_order): New function.
1377         * config/nds32/nds32.h (ADJUST_REG_ALLOC_ORDER): Define.
1378
1379 2018-03-17  Kito Cheng  <kito.cheng@gmail.com>
1380
1381         * config/nds32/nds32.c (nds32_asm_output_mi_thunk,
1382         nds32_print_operand, nds32_print_operand_address): Use
1383         HOST_WIDE_INT_PRINT_DEC instead.
1384
1385 2018-03-17  Chung-Ju Wu  <jasonwucj@gmail.com>
1386
1387         * config/nds32/nds32.c (nds32_register_priority): Modify cost.
1388
1389 2018-03-17  Jakub Jelinek  <jakub@redhat.com>
1390
1391         PR target/84902
1392         * config/i386/i386.c (initial_ix86_tune_features,
1393         initial_ix86_arch_features): Use unsigned HOST_WIDE_INT rather than
1394         unsigned long long.
1395         (set_ix86_tune_features): Change ix86_tune_mask from unsigned int
1396         to unsigned HOST_WIDE_INT, initialize to HOST_WIDE_INT_1U << ix86_tune
1397         rather than 1u << ix86_tune.  Formatting fix.
1398         (ix86_option_override_internal): Change ix86_arch_mask from
1399         unsigned int to unsigned HOST_WIDE_INT, initialize to
1400         HOST_WIDE_INT_1U << ix86_arch rather than 1u << ix86_arch.
1401         (ix86_function_specific_restore): Likewise.
1402
1403 2018-03-16  Jakub Jelinek  <jakub@redhat.com>
1404
1405         PR target/84899
1406         * postreload.c (reload_combine_recognize_pattern): Perform
1407         INTVAL addition in unsigned HOST_WIDE_INT type to avoid UB and
1408         truncate_int_for_mode the result for the destination's mode.
1409
1410         PR c/84909
1411         * hsa-gen.c (mem_type_for_type): Fix comment typo.
1412         * tree-vect-loop-manip.c (vect_create_cond_for_niters_checks):
1413         Likewise.
1414         * gimple-ssa-warn-restrict.c (builtin_memref::set_base_and_offset):
1415         Likewise.
1416
1417 2018-03-16  Vladimir Makarov  <vmakarov@redhat.com>
1418
1419         PR target/84876
1420         * lra-assigns.c (lra_split_hard_reg_for): Don't use
1421         regno_allocno_class_array and sorted_pseudos.
1422         * lra-constraints.c (spill_hard_reg_in_range): Ignore hard regs in
1423         insns where regno is used.
1424
1425 2018-03-16  Martin Liska  <mliska@suse.cz>
1426
1427         PR ipa/84833
1428         * multiple_target.c (create_dispatcher_calls): Redirect
1429         reference in the symbol table.
1430
1431 2018-03-16  Martin Liska  <mliska@suse.cz>
1432
1433         PR ipa/84722
1434         * multiple_target.c (create_dispatcher_calls): Redirect also
1435         an alias.
1436
1437 2018-03-16  Jakub Jelinek  <jakub@redhat.com>
1438
1439         PR c++/79937
1440         PR c++/82410
1441         * tree.h (TARGET_EXPR_NO_ELIDE): Define.
1442         * gimplify.c (gimplify_modify_expr_rhs): Don't elide TARGET_EXPRs with
1443         TARGET_EXPR_NO_ELIDE flag set unless *expr_p is INIT_EXPR.
1444
1445 2018-03-16  Julia Koval  <julia.koval@intel.com>
1446
1447         * doc/invoke.texi (Skylake Server): Add CLWB.
1448         Cannonlake): Remove CLWB.
1449
1450 2018-03-16  Jakub Jelinek  <jakub@redhat.com>
1451
1452         PR tree-optimization/84841
1453         * tree-ssa-reassoc.c (INTEGER_CONST_TYPE): Change to 1 << 4 from
1454         1 << 3.
1455         (FLOAT_ONE_CONST_TYPE): Define.
1456         (constant_type): Return FLOAT_ONE_CONST_TYPE for -1.0 and 1.0.
1457         (sort_by_operand_rank): Put entries with higher constant_type last
1458         rather than first to match comments.
1459
1460 2018-03-15  Sandra Loosemore  <sandra@codesourcery.com>
1461
1462         * config/nios2/nios2.md (movsi_internal): Fix thinko in
1463         split predicate.
1464
1465 2018-03-15  Jakub Jelinek  <jakub@redhat.com>
1466
1467         PR c++/79085
1468         * calls.c (expand_call): For TREE_ADDRESSABLE rettype ignore alignment
1469         check and use address of target always.
1470
1471 2018-03-15  H.J. Lu  <hongjiu.lu@intel.com>
1472
1473         PR target/84574
1474         * config/i386/i386.c (indirect_thunk_needed): Update comments.
1475         (indirect_thunk_bnd_needed): Likewise.
1476         (indirect_thunks_used): Likewise.
1477         (indirect_thunks_bnd_used): Likewise.
1478         (indirect_return_needed): New.
1479         (indirect_return_bnd_needed): Likewise.
1480         (output_indirect_thunk_function): Add a bool argument for
1481         function return.
1482         (output_indirect_thunk_function): Don't generate alias for
1483         function return thunk.
1484         (ix86_code_end): Call output_indirect_thunk_function to generate
1485         function return thunks.
1486         (ix86_output_function_return): Set indirect_return_bnd_needed
1487         and indirect_return_needed instead of indirect_thunk_bnd_needed
1488         and indirect_thunk_needed.
1489
1490 2018-03-15  Olga Makhotina  <olga.makhotina@intel.com>
1491
1492         * config/i386/sgxintrin.h (_enclv_u32): New intrinsic.
1493         (__enclv_bc, __enclv_cd, __enclv_generic): New definitions.
1494         (ERDINFO, ETRACKC, ELDBC, ELDUC): New leaves.
1495
1496 2018-03-15  David Malcolm  <dmalcolm@redhat.com>
1497             Paul Hua <paul.hua.gm@gmail.com>
1498
1499         PR c/84852
1500         * gcc.dg/fixits-pr84852-1.c: Fix filename in dg-regexp.
1501
1502 2018-03-15  Segher Boessenkool  <segher@kernel.crashing.org>
1503
1504         * config/rs6000/rs6000.c (abi_v4_pass_in_fpr): Add back the
1505         TARGET_DOUBLE_FLOAT and TARGET_SINGLE_FLOAT conditions on the DFmode
1506         resp. SFmode cases.
1507
1508 2018-03-15  Tamar Christina  <tamar.christina@arm.com>
1509
1510         PR target/84711
1511         * config/arm/arm.c (arm_can_change_mode_class): Use GET_MODE_UNIT_SIZE
1512         instead of GET_MODE_SIZE when comparing Units.
1513
1514 2018-03-15  Vladimir Mezentsev  <vladimir.mezentsev@oracle.com>
1515
1516         PR target/68256
1517         * varasm.c (hash_section): Return an unchangeble hash value
1518         * config/aarch64/aarch64.c (aarch64_use_blocks_for_constant_p):
1519         Return !aarch64_can_use_per_function_literal_pools_p ().
1520
1521 2018-03-15  Jakub Jelinek  <jakub@redhat.com>
1522
1523         PR target/84860
1524         * optabs.c (emit_conditional_move): Pass address of cmode's copy
1525         rather than address of cmode as last argument to prepare_cmp_insn.
1526
1527 2018-03-15  Julia Koval  <julia.koval@intel.com>
1528
1529         * config/i386/i386.c (F_AVX512VBMI2, F_GFNI, F_VPCLMULQDQ,
1530         F_AVX512VNNI, F_AVX512BITALG): New.
1531
1532 2018-03-14  John David Anglin  <danglin@gcc.gnu.org>
1533
1534         PR target/83451
1535         * config/pa/pa.c (pa_emit_move_sequence):  Always emit secondary reload
1536         insn for floating-point loads and stores.
1537
1538 2018-03-14  Carl Love  <cel@us.ibm.com>
1539
1540         * config/rs6000/rs6000-c.c: Add macro definitions for
1541         ALTIVEC_BUILTIN_VEC_PERMXOR.
1542         * config/rs6000/rs6000.h: Add #define for vec_permxor builtin.
1543         * config/rs6000/rs6000-builtin.def: Add macro expansions for VPERMXOR.
1544         * config/rs6000/altivec.md (altivec_vpermxor): New define expand.
1545         * config/rs6000/rs6000-p8swap.c (rtx_is_swappable_p): Add case
1546         UNSPEC_VPERMXOR.
1547         * config/doc/extend.texi: Add prototypes for vec_permxor.
1548
1549 2018-03-14  David Malcolm  <dmalcolm@redhat.com>
1550
1551         PR c/84852
1552         * diagnostic-show-locus.c (class layout_point): Convert m_line
1553         from int to linenum_type.
1554         (line_span::comparator): Use linenum "compare" function when
1555         comparing line numbers.
1556         (test_line_span): New function.
1557         (layout_range::contains_point): Convert param "row" from int to
1558         linenum_type.
1559         (layout_range::intersects_line_p): Likewise.
1560         (layout::will_show_line_p): Likewise.
1561         (layout::print_source_line): Likewise.
1562         (layout::should_print_annotation_line_p): Likewise.
1563         (layout::print_annotation_line): Likewise.
1564         (layout::print_leading_fixits): Likewise.
1565         (layout::annotation_line_showed_range_p): Likewise.
1566         (struct line_corrections): Likewise for field m_row.
1567         (line_corrections::line_corrections): Likewise for param "row".
1568         (layout::print_trailing_fixits): Likewise.
1569         (layout::get_state_at_point): Likewise.
1570         (layout::get_x_bound_for_row): Likewise.
1571         (layout::print_line): Likewise.
1572         (diagnostic_show_locus): Likewise for locals "last_line" and
1573         "row".
1574         (selftest::diagnostic_show_locus_c_tests): Call test_line_span.
1575         * input.c (selftest::test_linenum_comparisons): New function.
1576         (selftest::input_c_tests): Call it.
1577         * selftest.c (selftest::test_assertions): Test ASSERT_GT,
1578         ASSERT_GT_AT, ASSERT_LT, and ASSERT_LT_AT.
1579         * selftest.h (ASSERT_GT): New macro.
1580         (ASSERT_GT_AT): New macro.
1581         (ASSERT_LT): New macro.
1582         (ASSERT_LT_AT): New macro.
1583
1584 2018-03-14  Segher Boessenkool  <segher@kernel.crashing.org>
1585
1586         PR rtl-optimization/84780
1587         * combine.c (distribute_links): Don't make a link based on pc_rtx.
1588
1589 2018-03-14  Martin Liska  <mliska@suse.cz>
1590
1591         * tree.c (record_node_allocation_statistics): Use
1592         get_stats_node_kind.
1593         (get_stats_node_kind): New function extracted from
1594         record_node_allocation_statistics.
1595         (free_node): Use get_stats_node_kind.
1596
1597 2018-03-14  Richard Biener  <rguenther@suse.de>
1598
1599         * tree-ssa-pre.c (compute_antic_aux): Remove code that asserts
1600         that the value-set of ANTIC_IN doesn't grow.
1601
1602         Revert
1603         * tree-ssa-pre.c (struct bb_bitmap_sets): Add visited_with_visited_succs
1604         member.
1605         (BB_VISITED_WITH_VISITED_SUCCS): New define.
1606         (compute_antic): Initialize BB_VISITED_WITH_VISITED_SUCCS.
1607
1608 2018-03-14  Julia Koval  <julia.koval@intel.com>
1609
1610         * config.gcc (icelake-client, icelake-server): New.
1611         (icelake): Remove.
1612         * config/i386/i386.c (initial_ix86_tune_features): Extend to 64 bit.
1613         (initial_ix86_arch_features): Ditto.
1614         (PTA_SKYLAKE): Add SGX.
1615         (PTA_ICELAKE): Remove.
1616         (PTA_ICELAKE_CLIENT): New.
1617         (PTA_ICELAKE_SERVER): New.
1618         (ix86_option_override_internal): Split up icelake on icelake client and
1619         icelake server.
1620         (get_builtin_code_for_version): Ditto.
1621         (fold_builtin_cpu): Ditto.
1622         * config/i386/driver-i386.c (config/i386/driver-i386.c): Ditto.
1623         * config/i386/i386-c.c (ix86_target_macros_internal): Ditto
1624         * config/i386/i386.h (processor_type): Ditto.
1625         * doc/invoke.texi: Ditto.
1626
1627 2018-03-14  Jakub Jelinek  <jakub@redhat.com>
1628
1629         PR sanitizer/83392
1630         * sanopt.c (maybe_optimize_ubsan_ptr_ifn): Handle also
1631         INTEGER_CST offset, add it together with bitpos / 8 and
1632         sign extend based on POINTER_SIZE.
1633
1634         PR target/84844
1635         Revert
1636         2017-04-20  Uros Bizjak  <ubizjak@gmail.com>
1637
1638         PR target/78090
1639         * config/i386/constraints.md (Yc): New register constraint.
1640         * config/i386/i386.md (*float<SWI48:mode><MODEF:mode>2_mixed):
1641         Use Yc constraint for alternative 2 of operand 0.  Remove
1642         preferred_for_speed attribute.
1643
1644 2018-03-14  Richard Biener  <rguenther@suse.de>
1645
1646         PR tree-optimization/84830
1647         * tree-ssa-pre.c (compute_antic_aux): Intersect the new ANTIC_IN
1648         with the old one to avoid oscillations.
1649
1650 2018-03-13  Vladimir Makarov  <vmakarov@redhat.com>
1651
1652         PR target/83712
1653         * lra-assigns.c (find_all_spills_for): Ignore uninteresting
1654         pseudos.
1655         (assign_by_spills): Return a flag of reload assignment failure.
1656         Do not process the reload assignment failures.  Do not spill other
1657         reload pseudos if they has the same reg class.  Update n if
1658         necessary.
1659         (lra_assign): Add a return arg.  Set up from the result of
1660         assign_by_spills call.
1661         (find_reload_regno_insns, lra_split_hard_reg_for): New functions.
1662         * lra-constraints.c (split_reg): Add a new arg.  Use it instead of
1663         usage_insns if it is not NULL.
1664         (spill_hard_reg_in_range): New function.
1665         (split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
1666         * lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
1667         function prototypes.
1668         (lra_assign): Change prototype.
1669         * lra.c (lra): Add code to deal with fails by splitting hard reg
1670         live ranges.
1671
1672 2018-03-01  Palmer Dabbelt  <palmer@sifive.com>
1673
1674         * config/riscv/riscv.opt (mrelax): New option.
1675         * config/riscv/riscv.c (riscv_file_start): Emit ".option
1676         "norelax" when riscv_mrelax is disabled.
1677         * doc/invoke.texi (RISC-V): Document "-mrelax" and "-mno-relax".
1678
1679 2018-03-13  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
1680
1681         PR target/84743
1682         * config/rs6000/rs6000.c (rs6000_reassociation_width): Disable parallel
1683         reassociation for int modes.
1684
1685 2018-03-13  Richard Sandiford  <richard.sandiford@linaro.org>
1686
1687         * tree-vect-loop-manip.c (vect_maybe_permute_loop_masks):
1688         Reverse the choice between VEC_UNPACK_LO_EXPR and VEC_UNPACK_HI_EXPR
1689         for big-endian.
1690         * config/aarch64/iterators.md (hi_lanes_optab): New int attribute.
1691         * config/aarch64/aarch64-sve.md
1692         (*aarch64_sve_<perm_insn><perm_hilo><mode>): Rename to...
1693         (aarch64_sve_<perm_insn><perm_hilo><mode>): ...this.
1694         (*extend<mode><Vwide>2): Rename to...
1695         (aarch64_sve_extend<mode><Vwide>2): ...this.
1696         (vec_unpack<su>_<perm_hilo>_<mode>): Turn into a define_expand,
1697         renaming the old pattern to...
1698         (aarch64_sve_punpk<perm_hilo>_<mode>): ...this.  Only define
1699         unsigned packs.
1700         (vec_unpack<su>_<perm_hilo>_<SVE_BHSI:mode>): Turn into a
1701         define_expand, renaming the old pattern to...
1702         (aarch64_sve_<su>unpk<perm_hilo>_<SVE_BHSI:mode>): ...this.
1703         (*vec_unpacku_<perm_hilo>_<mode>_no_convert): Delete.
1704         (vec_unpacks_<perm_hilo>_<mode>): Take BYTES_BIG_ENDIAN into
1705         account when deciding which SVE instruction the optab should use.
1706         (vec_unpack<su_optab>_float_<perm_hilo>_vnx4si): Likewise.
1707
1708 2018-03-13  Richard Sandiford  <richard.sandiford@linaro.org>
1709
1710         * config/aarch64/aarch64.md (V4_REGNUM, V8_REGNUM, V12_REGNUM)
1711         (V20_REGNUM, V24_REGNUM, V28_REGNUM, P1_REGNUM, P2_REGNUM, P3_REGNUM)
1712         (P4_REGNUM, P5_REGNUM, P6_REGNUM, P8_REGNUM, P9_REGNUM, P10_REGNUM)
1713         (P11_REGNUM, P12_REGNUM, P13_REGNUM, P14_REGNUM): New define_constants.
1714         (tlsdesc_small_<mode>): Turn a define_expand and use
1715         tlsdesc_small_sve_<mode> for SVE.  Rename original define_insn to...
1716         (tlsdesc_small_advsimd_<mode>): ...this.
1717         (tlsdesc_small_sve_<mode>): New pattern.
1718
1719 2018-03-13  Richard Sandiford  <richard.sandiford@linaro.org>
1720
1721         * config/aarch64/iterators.md (UNSPEC_SMUL_HIGHPART)
1722         (UNSPEC_UMUL_HIGHPART): New constants.
1723         (MUL_HIGHPART): New int iteraor.
1724         (su): Handle UNSPEC_SMUL_HIGHPART and UNSPEC_UMUL_HIGHPART.
1725         * config/aarch64/aarch64-sve.md (<su>mul<mode>3_highpart): New
1726         define_expand.
1727         (*<su>mul<mode>3_highpart): New define_insn.
1728
1729 2018-03-13  Eric Botcazou  <ebotcazou@adacore.com>
1730
1731         PR lto/84805
1732         * ipa-devirt.c (odr_subtypes_equivalent_p): Do not get the ODR type of
1733         incomplete types.
1734
1735 2018-03-13  Martin Liska  <mliska@suse.cz>
1736
1737         PR ipa/84658.
1738         * (sem_item_optimizer::sem_item_optimizer): Initialize new
1739         vector.
1740         (sem_item_optimizer::~sem_item_optimizer): Release it.
1741         (sem_item_optimizer::merge_classes): Register variable aliases.
1742         (sem_item_optimizer::fixup_pt_set): New function.
1743         (sem_item_optimizer::fixup_points_to_sets): Likewise.
1744         * ipa-icf.h: Declare new variables and functions.
1745
1746 2018-03-13  Jakub Jelinek  <jakub@redhat.com>
1747
1748         PR middle-end/84834
1749         * match.pd ((A & C) != 0 ? D : 0): Use INTEGER_CST@2 instead of
1750         integer_pow2p@2 and test integer_pow2p in condition.
1751         (A < 0 ? C : 0): Similarly for @1.
1752
1753         PR middle-end/84831
1754         * stmt.c (parse_output_constraint): If the CONSTRAINT_LEN (*p, p)
1755         characters starting at p contain '\0' character, don't look beyond
1756         that.
1757
1758         PR target/84827
1759         * config/i386/i386.md (round<mode>2): For 387 fancy math, disable
1760         pattern if -ftrapping-math -fno-fp-int-builtin-inexact.
1761
1762         PR target/84828
1763         * reg-stack.c (change_stack): Change update_end var from int to
1764         rtx_insn *, if non-NULL don't update just BB_END (current_block), but
1765         also call set_block_for_insn on the newly added insns and rescan.
1766
1767         PR target/84786
1768         * config/i386/sse.md (sse2_loadhpd): Use Yv constraint rather than v
1769         on the last operand.
1770
1771         PR c++/84704
1772         * tree.c (stabilize_reference_1): Return save_expr (e) for
1773         STATEMENT_LIST even if it doesn't have side-effects.
1774
1775 2018-03-12  Jonathan Wakely  <jwakely@redhat.com>
1776
1777         * doc/invoke.texi (-mclflushopt): Fix spelling of option.
1778
1779 2018-03-12  Renlin Li  <renlin.li@arm.com>
1780
1781         * config/aarch64/aarch64.md (movhf_aarch64): Fix mode argument to
1782         aarch64_output_scalar_simd_mov_immediate.
1783
1784 2018-03-12  Martin Sebor  <msebor@redhat.com>
1785
1786         PR tree-optimization/83456
1787         * gimple-fold.c (gimple_fold_builtin_memory_op): Avoid warning
1788         for perfectly overlapping calls to memcpy.
1789         (gimple_fold_builtin_memory_chk): Same.
1790         (gimple_fold_builtin_strcpy): Handle no-warning.
1791         (gimple_fold_builtin_stxcpy_chk): Same.
1792         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Handle no-warning.
1793
1794 2018-03-12  Segher Boessenkool  <segher@kernel.crashing.org>
1795
1796         * config/rs6000/rs6000.c (abi_v4_pass_in_fpr): Add bool "named"
1797         parameter.  Use it for SFmode.
1798         (rs6000_function_arg_advance_1): Adjust.
1799         (rs6000_function_arg): Adjust.
1800         (rs6000_gimplify_va_arg): Pass false for that new parameter.
1801
1802 2018-03-12  Segher Boessenkool  <segher@kernel.crashing.org>
1803
1804         PR rtl-optimization/84169
1805         PR rtl-optimization/84780
1806         * combine.c (can_combine_p): Check for a 2-insn combination whether
1807         the destination register is used between the two insns, too.
1808
1809 2018-03-12  Richard Biener  <rguenther@suse.de>
1810
1811         PR tree-optimization/84803
1812         * tree-if-conv.c (ifcvt_memrefs_wont_trap): Don't do anything
1813         for refs DR analysis didn't process.
1814
1815 2018-03-12  Richard Biener  <rguenther@suse.de>
1816
1817         PR tree-optimization/84777
1818         * tree-ssa-loop-ch.c (should_duplicate_loop_header_p): For
1819         force-vectorize loops ignore whether we are optimizing for size.
1820
1821 2018-03-12  Chung-Ju Wu  <jasonwucj@gmail.com>
1822
1823         * config/nds32/nds32.c (nds32_md_asm_adjust): New function.
1824         (TARGET_MD_ASM_ADJUST): Define.
1825
1826 2018-03-12  Monk Chiang  <sh.chiang04@gmail.com>
1827             Kito Cheng  <kito.cheng@gmail.com>
1828             Chung-Ju Wu  <jasonwucj@gmail.com>
1829
1830         * config/nds32/nds32.c (nds32_compute_stack_frame,
1831         nds32_emit_stack_push_multiple, nds32_emit_stack_pop_multiple,
1832         nds32_emit_stack_v3push, nds32_emit_stack_v3pop,
1833         nds32_emit_adjust_frame, nds32_expand_prologue, nds32_expand_epilogue,
1834         nds32_expand_prologue_v3push, nds32_expand_epilogue_v3pop): Refine.
1835         * config/nds32/nds32.h (NDS32_FIRST_CALLEE_SAVE_GPR_REGNUM,
1836         NDS32_LAST_CALLEE_SAVE_GPR_REGNUM, NDS32_V3PUSH_AVAILABLE_P): New.
1837         * config/nds32/nds32.md (prologue, epilogue): Use macro
1838         NDS32_V3PUSH_AVAILABLE_P to do checking.
1839
1840 2018-03-11  Jakub Jelinek  <jakub@redhat.com>
1841
1842         PR debug/58150
1843         * dwarf2out.c (gen_enumeration_type_die): Don't guard adding
1844         DW_AT_declaration for ENUM_IS_OPAQUE on -gdwarf-4 or -gno-strict-dwarf,
1845         but on TYPE_SIZE.  Don't do anything for ENUM_IS_OPAQUE if not creating
1846         a new die.  Don't set TREE_ASM_WRITTEN if ENUM_IS_OPAQUE.  Guard
1847         addition of most attributes on !orig_type_die or the attribute not
1848         being present already.  Assert TYPE_VALUES is NULL for ENUM_IS_OPAQUE.
1849
1850 2018-03-11  Kito Cheng  <kito.cheng@gmail.com>
1851             Chung-Ju Wu  <jasonwucj@gmail.com>
1852
1853         * config/nds32/nds32.c (nds32_cpu_cpp_builtins): Modify to define
1854         __NDS32_VH__ macro.
1855         * config/nds32/nds32.opt (mvh): New option.
1856
1857 2018-03-11  Kito Cheng  <kito.cheng@gmail.com>
1858             Chung-Ju Wu  <jasonwucj@gmail.com>
1859
1860         * config/nds32/nds32-protos.h (nds32_cpu_cpp_builtins): Declare
1861         function.
1862         * config/nds32/nds32.c (nds32_cpu_cpp_builtins): New function.
1863         * config/nds32/nds32.h (TARGET_CPU_CPP_BUILTINS): Modify its
1864         definition.
1865
1866 2018-03-11  Kito Cheng  <kito.cheng@gmail.com>
1867             Chung-Ju Wu  <jasonwucj@gmail.com>
1868
1869         * config/nds32/nds32-memory-manipulation.c (nds32_expand_strlen): New
1870         function.
1871         * config/nds32/nds32-multiple.md (strlensi): New pattern.
1872         * config/nds32/nds32-protos.h (nds32_expand_strlen): Declare function.
1873
1874 2018-03-11  Monk Chiang  <sh.chiang04@gmail.com>
1875             Kito Cheng  <kito.cheng@gmail.com>
1876             Chung-Ju Wu  <jasonwucj@gmail.com>
1877
1878         * config/nds32/constants.md (unspec_element): Add UNSPEC_FFB,
1879         UNSPEC_FFMISM and UNSPEC_FLMISM.
1880         * config/nds32/nds32-intrinsic.c (bdesc_2arg): Add builtin description
1881         for ffb, ffmism and flmism.
1882         * config/nds32/nds32-intrinsic.md (unspec_ffb): Define new pattern.
1883         (unspec_ffmism): Ditto.
1884         (unspec_flmism): Ditto.
1885         (nds32_expand_builtin_impl): Check if string extension is available.
1886         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_FFB,
1887         NDS32_BUILTIN_FFMISM and NDS32_BUILTIN_FLMISM.
1888
1889 2018-03-10  Vladimir Makarov  <vmakarov@redhat.com>
1890
1891         Reverting patch:
1892         2018-03-09  Vladimir Makarov  <vmakarov@redhat.com>
1893
1894         PR target/83712
1895         * lra-assigns.c (assign_by_spills): Return a flag of reload
1896         assignment failure.  Do not process the reload assignment
1897         failures.  Do not spill other reload pseudos if they has the same
1898         reg class.
1899         (lra_assign): Add a return arg.  Set up from the result of
1900         assign_by_spills call.
1901         (find_reload_regno_insns, lra_split_hard_reg_for): New functions.
1902         * lra-constraints.c (split_reg): Add a new arg.  Use it instead of
1903         usage_insns if it is not NULL.
1904         (spill_hard_reg_in_range): New function.
1905         (split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
1906         * lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
1907         function prototypes.
1908         (lra_assign): Change prototype.
1909         * lra.c (lra): Add code to deal with fails by splitting hard reg
1910         live ranges.
1911
1912 2018-03-10  H.J. Lu  <hongjiu.lu@intel.com>
1913
1914         PR target/84807
1915         * config/i386/i386.opt: Replace Enforcment with Enforcement.
1916
1917 2018-03-10  Alexandre Oliva  <aoliva@redhat.com>
1918
1919         PR debug/84620
1920         * dwarf2out.h (dw_val_class): Add dw_val_class_symview.
1921         (dw_val_node): Add val_symbolic_view.
1922         * dwarf2out.c (dw_line_info_table): Add symviews_since_reset.
1923         (symview_upper_bound): New.
1924         (new_line_info_table): Initialize symviews_since_reset.
1925         (dwarf2out_source_line): Count symviews_since_reset and set
1926         symview_upper_bound.
1927         (dw_val_equal_p): Handle symview.
1928         (add_AT_symview): New.
1929         (print_dw_val): Handle symview.
1930         (attr_checksum, attr_checksum_ordered): Likewise.
1931         (same_dw_val_p, size_of_die): Likewise.
1932         (value_format, output_die): Likewise.
1933         (add_high_low_attributes): Use add_AT_symview for entry_view.
1934         (dwarf2out_finish): Reset symview_upper_bound, clear
1935         zero_view_p.
1936
1937 2018-03-09  Peter Bergner  <bergner@vnet.ibm.com>
1938
1939         PR target/83969
1940         * config/rs6000/rs6000.c (rs6000_offsettable_memref_p): New prototype.
1941         Add strict argument and use it.
1942         (rs6000_split_multireg_move): Update for new strict argument.
1943         (mem_operand_gpr): Disallow all non-offsettable addresses.
1944         * config/rs6000/rs6000.md (*movdi_internal64): Use YZ constraint.
1945
1946 2018-03-09  Jakub Jelinek  <jakub@redhat.com>
1947
1948         PR target/84772
1949         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Mark va_arg_tmp
1950         temporary TREE_ADDRESSABLE before gimplification of BUILT_IN_MEMCPY.
1951         * config/powerpcspe/powerpcspe.c (rs6000_gimplify_va_arg): Likewise.
1952
1953         PR c++/84767
1954         * tree-inline.c (copy_tree_body_r): For INDIRECT_REF of a remapped
1955         decl, use remap_type if we want to use the type.
1956
1957 2018-03-09  Martin Sebor  <msebor@redhat.com>
1958
1959         PR tree-optimization/84526
1960         * gimple-ssa-warn-restrict.c (builtin_memref::set_base_and_offset):
1961         Remove dead code.
1962         (builtin_access::generic_overlap): Be prepared to handle non-array
1963         base objects.
1964
1965 2018-03-09  Alexandre Oliva  <aoliva@redhat.com>
1966
1967         PR rtl-optimization/84682
1968         * lra-constraints.c (process_address_1): Check is_address flag
1969         for address constraints.
1970         (process_alt_operands): Likewise.
1971         * lra.c (lra_set_insn_recog_data): Pass asm operand locs to
1972         preprocess_constraints.
1973         * recog.h (preprocess_constraints): Add oploc parameter.
1974         Adjust callers.
1975         * recog.c (preprocess_constraints): Test address_operand for
1976         CT_ADDRESS constraints.
1977
1978 2018-03-09  Vladimir Makarov  <vmakarov@redhat.com>
1979
1980         PR target/83712
1981         * lra-assigns.c (assign_by_spills): Return a flag of reload
1982         assignment failure.  Do not process the reload assignment
1983         failures.  Do not spill other reload pseudos if they has the same
1984         reg class.
1985         (lra_assign): Add a return arg.  Set up from the result of
1986         assign_by_spills call.
1987         (find_reload_regno_insns, lra_split_hard_reg_for): New functions.
1988         * lra-constraints.c (split_reg): Add a new arg.  Use it instead of
1989         usage_insns if it is not NULL.
1990         (spill_hard_reg_in_range): New function.
1991         (split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
1992         * lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
1993         function prototypes.
1994         (lra_assign): Change prototype.
1995         * lra.c (lra): Add code to deal with fails by splitting hard reg
1996         live ranges.
1997
1998 2018-03-09  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1999
2000         PR target/83193
2001         * common/config/arm/arm-common.c (arm_parse_arch_option_name):
2002         Accept complain bool parameter.  Only emit errors if it is true.
2003         (arm_parse_cpu_option_name): Likewise.
2004         (arm_target_thumb_only): Adjust callers of the above.
2005         * config/arm/arm-protos.h (arm_parse_cpu_option_name): Adjust
2006         prototype to take a default true bool parameter.
2007         (arm_parse_arch_option_name): Likewise.
2008
2009 2018-03-09  David Malcolm  <dmalcolm@redhat.com>
2010             Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
2011
2012         PR jit/64089
2013         PR jit/84288
2014         * Makefile.in (LD_VERSION_SCRIPT_OPTION, LD_SONAME_OPTION): New.
2015         * configure: Regenerate.
2016         * configure.ac ("linker --version-script option"): New.
2017         ("linker soname option"): New.
2018
2019 2018-03-09  Richard Biener  <rguenther@suse.de>
2020
2021         PR tree-optimization/84775
2022         * tree-if-conv.c (add_bb_predicate_gimplified_stmts): Delink
2023         immediate uses of predicate stmts and mark them modified.
2024
2025         Revert
2026         PR tree-optimization/84178
2027         * tree-if-conv.c (combine_blocks): Move insert_gimplified_predicates
2028         to caller.
2029         (version_loop_for_if_conversion): Delay update_ssa call.
2030         (tree_if_conversion): Delay update_ssa until after predicate
2031         insertion.
2032
2033 2018-03-09  Eric Botcazou  <ebotcazou@adacore.com>
2034
2035         PR target/84763
2036         * config/i386/winnt.c (i386_pe_seh_cold_init): Use small pre-allocation
2037         when the function accesses prior frames.
2038
2039 2018-03-08  Jakub Jelinek  <jakub@redhat.com>
2040
2041         PR debug/84456
2042         * dwarf2out.c (dw_loc_list): If list && loc_list->first->next, call
2043         gen_llsym, otherwise call maybe_gen_llsym.
2044
2045         PR inline-asm/84742
2046         * recog.c (asm_operand_ok): Return 0 if multi-character constraint
2047         has ',' character inside of it.
2048
2049 2018-03-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
2050
2051         PR target/84748
2052         * config/aarch64/aarch64.md (*compare_cstore<mode>_insn): Mark pattern
2053         as clobbering CC_REGNUM.
2054
2055 2018-03-08  Richard Biener  <rguenther@suse.de>
2056
2057         PR middle-end/84552
2058         * tree-scalar-evolution.c: Include tree-into-ssa.h.
2059         (follow_copies_to_constant): Do not follow SSA names registered
2060         for update.
2061
2062 2018-03-08  Richard Biener  <rguenther@suse.de>
2063
2064         PR tree-optimization/84178
2065         * tree-if-conv.c (combine_blocks): Move insert_gimplified_predicates
2066         to caller.
2067         (version_loop_for_if_conversion): Delay update_ssa call.
2068         (tree_if_conversion): Delay update_ssa until after predicate
2069         insertion.
2070
2071 2018-03-08  David Malcolm  <dmalcolm@redhat.com>
2072
2073         PR tree-optimization/84178
2074         * tree-if-conv.c (release_bb_predicate): Remove the
2075         the assertion that the stmts have NULL use_ops.
2076         Discard the statements, asserting that they haven't
2077         yet been added to a BB.
2078
2079 2018-03-08  Richard Biener  <rguenther@suse.de>
2080
2081         PR tree-optimization/84746
2082         * tree-ssa-pre.c (find_leader_in_sets): Deal with SET1 being NULL.
2083         (phi_translate): Pass in destination ANTIC_OUT set.
2084         (phi_translate_1): Likewise.  For a simplified result lookup
2085         a leader in ANTIC_OUT and AVAIL_OUT, not the ANTIC_IN sets.
2086         (phi_translate_set): Adjust.
2087         (do_pre_regular_insertion): Likewise.
2088         (do_pre_partial_partial_insertion): Likewise.
2089
2090 2018-03-08  Martin Liska  <mliska@suse.cz>
2091
2092         PR gcov-profile/84735
2093         * doc/gcov.texi: Document usage of profile files.
2094         * gcov-io.h: Document changes in the format.
2095
2096 2018-03-08  Alexandre Oliva  <aoliva@redhat.com>
2097
2098         PR debug/84404
2099         PR debug/84408
2100         * dwarf2out.c (struct dw_line_info_table): Update comments for
2101         view == -1.
2102         (FORCE_RESET_NEXT_VIEW): New.
2103         (FORCE_RESETTING_VIEW_P): New.
2104         (RESETTING_VIEW_P): Check for -1 too.
2105         (ZERO_VIEW_P): Likewise.
2106         (new_line_info_table): Force-reset next view.
2107         (dwarf2out_begin_function): Likewise.
2108         (dwarf2out_source_line): Simplify zero_view_p initialization.
2109         Test FORCE_RESETTING_VIEW_P and RESETTING_VIEW_P instead of
2110         view directly.  Omit view when omitting .loc at line 0.
2111
2112 2018-03-08  Jakub Jelinek  <jakub@redhat.com>
2113
2114         PR tree-optimization/84740
2115         * tree-switch-conversion.c (process_switch): Call build_constructors
2116         only if info.phi_count is non-zero.
2117
2118         PR tree-optimization/84739
2119         * tree-tailcall.c (find_tail_calls): Check call arguments against
2120         DECL_ARGUMENTS (current_function_decl) rather than
2121         DECL_ARGUMENTS (func) when checking for tail recursion.
2122
2123 2018-03-07  Jakub Jelinek  <jakub@redhat.com>
2124
2125         * doc/contrib.texi: Add entries for Martin Liska, David Malcolm,
2126         Marek Polacek, extend Vladimir Makarov's, Jonathan Wakely's and
2127         Volker Reichelt's entry and add entries for people that perform
2128         GCC fuzzy testing and report numerous bugs.
2129
2130 2018-03-07  Segher Boessenkool  <segher@kernel.crashing.org>
2131
2132         PR target/82411
2133         * config/rs6000/rs6000.c (rs6000_elf_in_small_data_p): Don't put
2134         readonly data in sdata, if that is disabled.
2135         * config/rs6000/sysv4.opt (mreadonly-in-sdata): New option.
2136         * doc/invoke.texi (RS/6000 and PowerPC Options): Document
2137         -mreadonly-in-sdata option.
2138
2139 2018-03-07  Martin Sebor  <msebor@redhat.com>
2140
2141         PR tree-optimization/84468
2142         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Consider successor
2143         basic block when looking for nul assignment.
2144
2145 2018-03-07  Eric Botcazou  <ebotcazou@adacore.com>
2146
2147         PR target/84277
2148         * except.h (output_function_exception_table): Adjust prototype.
2149         * except.c (output_function_exception_table): Remove FNNAME parameter
2150         and add SECTION parameter.  Ouput one part of the table at a time.
2151         * final.c (final_scan_insn_1) <NOTE_INSN_SWITCH_TEXT_SECTIONS>: Output
2152         the first part of the exception table and emit unwind directives.
2153         * config/i386/i386-protos.h (i386_pe_end_cold_function): Declare.
2154         (i386_pe_seh_cold_init): Likewise.
2155         * config/i386/cygming.h (ASM_DECLARE_COLD_FUNCTION_NAME): New macro.
2156         (ASM_DECLARE_COLD_FUNCTION_SIZE): Likewise.
2157         * config/i386/i386.c (x86_expand_epilogue): Fix wording in comment.
2158         (ix86_output_call_insn): Emit a nop in one more case for SEH.
2159         * config/i386/winnt.c: Include except.h.
2160         (struct seh_frame_state): Add reg_offset, after_prologue and
2161         in_cold_section fields.
2162         (i386_pe_seh_end_prologue): Set seh->after_prologue.
2163         (i386_pe_seh_cold_init): New function.
2164         (i386_pe_seh_fini): Add COLD parameter and bail out if it is not equal
2165         to seh->in_cold_section.
2166         (seh_emit_push): Record the offset of the push.
2167         (seh_emit_save): Record the offet of the save.
2168         (i386_pe_seh_unwind_emit): Deal with NOTE_INSN_SWITCH_TEXT_SECTIONS.
2169         Test seh->after_prologue to disregard the epilogue.
2170         (i386_pe_end_function): Pass FALSE to i386_pe_seh_fini.
2171         (i386_pe_end_cold_function): New function.
2172
2173 2018-03-07  Jakub Jelinek  <jakub@redhat.com>
2174
2175         PR fortran/84565
2176         * config/aarch64/predicates.md (aarch64_simd_reg_or_zero): Use
2177         aarch64_simd_or_scalar_imm_zero rather than aarch64_simd_imm_zero.
2178
2179         PR c++/84704
2180         * gimple-expr.c (create_tmp_var_raw): Set DECL_NAMELESS flag
2181         on tmp_var.
2182         * tree-pretty-print.c (dump_decl_name): For TDF_COMPARE_DEBUG,
2183         don't print names of DECL_NAMELESS DECL_IGNORED_P decls.
2184
2185         PR middle-end/84723
2186         * multiple_target.c: Include tree-inline.h and intl.h.
2187         (expand_target_clones): Diagnose and fail if node->definition and
2188         !tree_versionable_function_p (node->decl).
2189
2190 2018-03-06  John David Anglin  <danglin@gcc.gnu.org>
2191
2192         * config/pa/pa.h (ASM_GENERATE_INTERNAL_LABEL): Revise to use
2193         sprint_ul.
2194         (ASM_OUTPUT_ADDR_VEC_ELT): Revise for above change.
2195         (ASM_OUTPUT_ADDR_DIFF_ELT): Likewise.
2196         * config/pa/pa64-hpux.h (ASM_GENERATE_INTERNAL_LABEL): Revise as above.
2197
2198 2018-03-06  Jakub Jelinek  <jakub@redhat.com>
2199
2200         PR target/84710
2201         * combine.c (try_combine): Use reg_or_subregno instead of handling
2202         just paradoxical SUBREGs and REGs.
2203
2204 2018-03-06  Claudiu Zissulescu  <claziss@synopsys.com>
2205
2206          * config/arc/arc.c (arc_finalize_pic): Remove function.
2207          (arc_must_save_register): We use single base PIC register, remove
2208          checks to save/restore the PIC register.
2209          (arc_expand_prologue): Likewise.
2210          * config/arc/arc-protos.h (arc_set_default_type_attributes):
2211          Remove.
2212          (arc_verify_short): Likewise.
2213          (arc_attr_type): Likewise.
2214          * config/arc/arc.c (arc_set_default_type_attributes): Remove.
2215          (walk_stores): Likewise.
2216          (arc_address_cost): Make it static.
2217          (arc_verify_short): Likewise.
2218          (branch_dest): Likewise.
2219          (arc_attr_type): Likewise.
2220          * config/arc/arc.c (TARGET_ADJUST_INSN_LENGTH): Remove.
2221          (TARGET_INSN_LENGTH_PARAMETERS): Likewise.
2222          (arc_final_prescan_insn): Remove inserting the nops due to
2223          hardware hazards.  It is done in reorg step.
2224          (insn_length_variant_t): Remove.
2225          (insn_length_parameters_t): Likewise.
2226          (arc_insn_length_parameters): Likewise.
2227          (arc_get_insn_variants): Likewise.
2228          * config/arc/arc.h (TARGET_UPSIZE_DBR): Remove.
2229
2230 2018-03-06  Jakub Jelinek  <jakub@redhat.com>
2231
2232         PR inline-asm/84683
2233         * reg-stack.c (move_for_stack_reg): If any_malformed_asm, avoid
2234         assertion failure.
2235
2236         PR tree-optimization/84687
2237         * omp-simd-clone.c (simd_clone_create): Clear DECL_BUILT_IN_CLASS
2238         on new_node->decl.
2239         * match.pd (pow(C,x)*expN(y) -> expN(logN(C)*x+y)): New optimization.
2240
2241 2018-03-05  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
2242
2243         * config/rs6000/rs6000-builtin.def (rs6000_speculation_barrier):
2244         Rename to ppc_speculation_barrier.
2245         * config/rs6000/rs6000.c (rs6000_init_builtins): Rename builtin to
2246         __builtin_ppc_speculation_barrier.
2247
2248 2018-03-05  Jakub Jelinek  <jakub@redhat.com>
2249
2250         PR target/84700
2251         * combine.c (combine_simplify_rtx): Don't try to simplify if
2252         if_then_else_cond returned non-NULL, but either true_rtx or false_rtx
2253         are equal to x.
2254
2255 2018-03-05  Segher Boessenkool  <segher@kernel.crashing.org>
2256
2257         * config/rs6000/rs6000.c (rs6000_loop_align): Don't align tiny loops
2258         to 32 bytes when compiling for POWER9.
2259
2260 2018-03-05  Jakub Jelinek  <jakub@redhat.com>
2261
2262         PR target/84564
2263         * config/i386/i386.c (ix86_function_ok_for_sibcall): Check for
2264         regparm >= 3 with no arg reg available also for calls with
2265         flag_force_indirect_call.  Pass decl to ix86_function_regparm.
2266
2267         PR target/84524
2268         * config/i386/sse.md (*<code><mode>3): Replace <mask_prefix3> with
2269         orig,vex.
2270         (*<plusminus_insn><mode>3): Likewise.  Remove <mask_operand3> uses.
2271
2272 2018-03-05  Peter Bergner  <bergner@vnet.ibm.com>
2273
2274         PR target/84264
2275         * config/rs6000/vector.md (mov<mode>): Disallow altivec memory operands.
2276
2277 2018-03-05  Richard Biener  <rguenther@suse.de>
2278
2279         PR tree-optimization/84486
2280         * tree-ssa-pre.c (create_expression_by_pieces): Remove dead code.
2281         When inserting a __builtin_assume_aligned call set the LHS
2282         SSA name alignment info accordingly.
2283
2284 2018-03-05  Wilco Dijkstra  <wdijkstr@arm.com>
2285
2286         PR tree-optimization/84114
2287         * config/aarch64/aarch64.c (aarch64_reassociation_width)
2288         Avoid reassociation of FLOAT_MODE addition.
2289
2290 2018-03-05  Olga Makhotina  <olga.makhotina@intel.com>
2291
2292         * common/config/i386/i386-common.c (OPTION_MASK_ISA_PCONFIG_SET,
2293         OPTION_MASK_ISA_PCONFIG_UNSET, OPTION_MASK_ISA_WBNOINVD_SET,
2294         OPTION_MASK_ISA_WBNOINVD_UNSET): New definitions.
2295         (ix86_handle_option): Handle -mpconfig and -mwbnoinvd.
2296         * config.gcc (pconfigintrin.h, wbnoinvdintrin.h) : Add headers.
2297         * config/i386/cpuid.h (bit_PCONFIG, bit_WBNOINVD): New.
2298         * config/i386/driver-i386.c (host_detect_local_cpu): Detect -mpconfig
2299         and -mwbnoinvd.
2300         * config/i386/i386-builtin.def (__builtin_ia32_wbnoinvd,
2301         __builtin_ia32_wbinvd): New builtins.
2302         (SPECIAL_ARGS2): New.
2303         * config/i386/i386-c.c (__WBNOINVD__, __PCONFIG__): New.
2304         (SPECIAL_ARGS2): New.
2305         * config/i386/i386.c (ix86_target_string): Add -mpconfig and -mwbnoinvd.
2306         (ix86_valid_target_attribute_inner_p): Ditto.
2307         (ix86_init_mmx_sse_builtins): Add special_args2.
2308         * config/i386/i386.h (TARGET_PCONFIG, TARGET_PCONFIG_P, TARGET_WBNOINVD,
2309         TARGET_WBNOINVD_P): New.
2310         * config/i386/i386.md (UNSPECV_WBINVD, UNSPECV_WBNOINVD): New.
2311         (define_insn "wbinvd", define_insn "wbnoinvd"): New.
2312         * config/i386/i386.opt: Add -mpconfig and -mwbnoinvd.
2313         * config/i386/immintrin.h (_wbinvd): New intrinsic.
2314         * config/i386/pconfigintrin.h: New file.
2315         * config/i386/wbnoinvdintrin.h: Ditto.
2316         * config/i386/x86intrin.h: Add headers pconfigintrin.h and wbnoinvdintrin.h.
2317         * doc/invoke.texi (-mpconfig, -mwbnoinvd): New.
2318
2319 2018-03-05  Richard Biener  <rguenther@suse.de>
2320
2321         PR tree-optimization/84670
2322         * tree-ssa-pre.c (struct bb_bitmap_sets): Add visited_with_visited_succs
2323         member.
2324         (BB_VISITED_WITH_VISITED_SUCCS): New define.
2325         (compute_antic): Initialize BB_VISITED_WITH_VISITED_SUCCS.
2326         (compute_antic_aux): Only assert the number of values in ANTIC_IN
2327         doesn't grow if all successors (recursively) were visited at least
2328         once.
2329
2330 2018-03-05  Richard Biener  <rguenther@suse.de>
2331
2332         PR tree-optimization/84650
2333         * tree-ssa-loop-im.c (pass_lim::execute): Reset the SCEV cache
2334         if executed in the loop pipeline.
2335
2336 2018-03-05  Sandra Loosemore  <sandra@codesourcery.com>
2337
2338         * doc/configfiles.texi (Configuration Files): Move info about
2339         conditionalizing $target-protos.h to...
2340         * doc/sourcebuild.texi (Back End): Here.  Explain how $target.h
2341         differs from $target-protos.h.
2342
2343 2018-03-05  Kito Cheng  <kito.cheng@gmail.com>
2344             Chung-Ju Wu  <jasonwucj@gmail.com>
2345
2346         * config/nds32/nds32-protos.h (nds32_expand_setmem): Declare.
2347         * config/nds32/nds32-multiple.md (setmemsi): Define.
2348         * config/nds32/nds32-memory-manipulation.c
2349         (nds32_gen_dup_4_byte_to_word_value): New.
2350         (emit_setmem_word_loop): New.
2351         (emit_setmem_byte_loop): New.
2352         (nds32_expand_setmem_loop): New.
2353         (nds32_expand_setmem_loop_v3m): New.
2354         (nds32_expand_setmem_unroll): New.
2355         (nds32_expand_setmem): New.
2356
2357 2018-03-04  Kito Cheng  <kito.cheng@gmail.com>
2358             Chung-Ju Wu  <jasonwucj@gmail.com>
2359
2360         * config/nds32/nds32-memory-manipulation.c
2361         (nds32_emit_load_store): New.
2362         (nds32_emit_post_inc_load_store): New.
2363         (nds32_emit_mem_move): New.
2364         (nds32_emit_mem_move_block): New.
2365         (nds32_expand_movmemsi_loop_unknown_size): New.
2366         (nds32_expand_movmemsi_loop_known_size): New.
2367         (nds32_expand_movmemsi_loop): New.
2368         (nds32_expand_movmemsi_unroll): New.
2369         (nds32_expand_movmemqi): Rename ...
2370         (nds32_expand_movmemsi): ... to this.
2371         * config/nds32/nds32-multiple.md (movmemqi): Rename ...
2372         (movmemsi): ... to this.
2373         * config/nds32/nds32-protos.h (nds32_expand_movmemqi): Rename ...
2374         (nds32_expand_movmemsi): ... to this.
2375
2376 2018-03-04  Kito Cheng  <kito.cheng@gmail.com>
2377             Monk Chiang  <sh.chiang04@gmail.com>
2378             Chung-Ju Wu  <jasonwucj@gmail.com>
2379
2380         * config/nds32/nds32-protos.h
2381         (nds32_expand_load_multiple): New arguments.
2382         (nds32_expand_store_multiple): Ditto.
2383         (nds32_valid_multiple_load_store): Rename ...
2384         (nds32_valid_multiple_load_store_p): ... to this.
2385         * config/nds32/nds32-memory-manipulation.c
2386         (nds32_expand_load_multiple): Refine implementation.
2387         (nds32_expand_store_multiple): Ditto.
2388         * config/nds32/nds32-multiple.md
2389         (load_multiple): Update nds32_expand_load_multiple interface.
2390         (store_multiple): Update nds32_expand_store_multiple interface.
2391         * config/nds32/nds32-predicates.c
2392         (nds32_valid_multiple_load_store): Rename ...
2393         (nds32_valid_multiple_load_store_p): ... to this and refine
2394         implementation.
2395         * config/nds32/predicates.md
2396         (nds32_load_multiple_and_update_address_operation): New predicate.
2397         (nds32_store_multiple_and_update_address_operation): New predicate.
2398
2399 2018-03-04  Kito Cheng  <kito.cheng@gmail.com>
2400             Chung-Ju Wu  <jasonwucj@gmail.com>
2401
2402         * config/nds32/nds32.md (type): Add load_multiple and store_multiple.
2403         (combo): New attribute.
2404         * config/nds32/nds32-multiple.md: Refine patterns with new attributes.
2405
2406 2018-03-03  Chung-Ju Wu  <jasonwucj@gmail.com>
2407
2408         * config/nds32/nds32.opt: Change -mcmodel= default value.
2409
2410 2018-03-03  Kito Cheng  <kito.cheng@gmail.com>
2411             Monk Chiang  <sh.chiang04@gmail.com>
2412             Chung-Ju Wu  <jasonwucj@gmail.com>
2413
2414         * config/nds32/constants.md (unspec_element): New enum.
2415         * config/nds32/constraints.md (Umw): New constraint.
2416         * config/nds32/nds32-intrinsic.c: Add more builtin functions.
2417         * config/nds32/nds32-intrinsic.md: Likewise.
2418         * config/nds32/nds32-md-auxiliary.c (nds32_regno_to_enable4): New.
2419         (nds32_valid_smw_lwm_base_p): New.
2420         (nds32_output_smw_single_word): New.
2421         (nds32_output_lmw_single_word): New.
2422         (nds32_expand_unaligned_load): New.
2423         (nds32_expand_unaligned_store): New.
2424         * config/nds32/nds32-protos.h (nds32_valid_smw_lwm_base_p): Declare.
2425         (nds32_output_smw_single_word): Declare.
2426         (nds32_output_lmw_single_word): Declare.
2427         (nds32_expand_unaligned_load): Declare.
2428         (nds32_expand_unaligned_store): Declare.
2429         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_UALOAD_HW,
2430         NDS32_BUILTIN_UALOAD_W, NDS32_BUILTIN_UALOAD_DW,
2431         NDS32_BUILTIN_UASTORE_HW, NDS32_BUILTIN_UASTORE_W,
2432         NDS32_BUILTIN_UASTORE_DW.
2433         * config/nds32/predicates.md (nds32_lmw_smw_base_operand): New
2434         predicate.
2435
2436 2018-03-03  Monk Chiang  <sh.chiang04@gmail.com>
2437             Kito Cheng  <kito.cheng@gmail.com>
2438             Chung-Ju Wu  <jasonwucj@gmail.com>
2439
2440         * config/nds32/nds32-intrinsic.c
2441         (nds32_expand_builtin_null_ftype_reg): Delete.
2442         (nds32_expand_builtin_reg_ftype_imm): Ditto.
2443         (nds32_expand_builtin_null_ftype_reg_imm): Ditto.
2444         (nds32_read_argument): New.
2445         (nds32_legitimize_target): Ditto.
2446         (nds32_legitimize_argument): Ditto.
2447         (nds32_check_constant_argument): Ditto.
2448         (nds32_expand_unop_builtin): Ditto.
2449         (nds32_expand_unopimm_builtin): Ditto.
2450         (nds32_expand_binop_builtin): Ditto.
2451         (nds32_builtin_decl_impl): Ditto.
2452         (builtin_description): Ditto.
2453         (nds32_expand_builtin_impl): Rewrite with new infrastructure.
2454         (nds32_init_builtins_impl): Ditto.
2455         * config/nds32/nds32.c (TARGET_BUILTIN_DECL): Define.
2456         (nds32_builtin_decl): New.
2457         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_COUNT.
2458         * config/nds32/nds32-protos.h (nds32_builtin_decl_impl): Declare.
2459
2460 2018-03-02  Jeff Law  <law@redhat.com>
2461
2462         * reorg.c (stop_search_p): Handle DEBUG_INSN.
2463         (redundant_insn, fill_simple_delay_slots): Likewise.
2464         (fill_slots_from_thread): Likewise.
2465         * resource.c (mark_referenced_resources): Likewise.
2466         (mark_set_resources, find_dead_or_set_registers): Likewise.
2467
2468 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
2469
2470         * substring-locations.h (format_warning_va): Formatting fix for
2471         ATTRIBUTE_GCC_DIAG.
2472         (format_warning_at_substring): Fix up ATTRIBUTE_GCC_DIAG second
2473         argument.
2474         (format_warning_n_va, format_warning_at_substring_n): New prototypes.
2475         * substring-locations.c: Include intl.h.
2476         (format_warning_va): Turned into small wrapper around
2477         format_warning_n_va, renamed to ...
2478         (format_warning_n_va): ... this, add N and PLURAL_GMSGID arguments,
2479         rename GMSGID to SINGULAR_GMSGID, if SINGULAR_GMSGID != PLURAL_GMSGID,
2480         use ngettext.
2481         (format_warning_at_substring_n): New function.
2482         * gimple-ssa-sprintf.c: Remove GCC diagnostic ignored pragma.
2483         (fmtwarn): Add ATTRIBUTE_GCC_DIAG.  Turn into a copy of
2484         format_warning_at_substring with just a shorter name instead of
2485         const function pointer.
2486         (fmtwarn_n): New function.
2487         (maybe_warn, format_directive, parse_directive): Use fmtwarn_n where
2488         appropriate, get rid of all the fmtstr temporaries, move conditionals
2489         with G_() wrapped string literals directly into fmtwarn arguments,
2490         cast dir.len to (int), formatting fixes.
2491
2492 2018-03-02  Thomas Schwinge  <thomas@codesourcery.com>
2493
2494         * doc/invoke.texi: Remove "Cilk Plus" references.
2495
2496 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
2497             Richard Biener  <rguenther@suse.de>
2498
2499         PR ipa/84628
2500         * expr.c (expand_expr_real_1) <case CALL_EXPR>: Don't emit diagnostics
2501         for error or warning attributes if CALL_FROM_THUNK_P is set.
2502         Formatting fixes.
2503
2504 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
2505
2506         PR target/56540
2507         * config/pa/pa.h (TARGET_CPU_CPP_BUILTINS): Predefine
2508         __SIZEOF_128__ macro if HPUX_LONG_DOUBLE_LIBRARY.
2509
2510         PR target/56540
2511         * config/ia64/ia64.h (TARGET_CPU_CPP_BUILTINS): Predefine
2512         __SIZEOF_{FPREG,FLOAT{80,128}}__ macros.
2513
2514         * predict.c (test_prediction_value_range): Use PROB_UNINITIALIZED
2515         instead of -1U in last predictors element's probability member.
2516
2517 2018-03-02  Eric Botcazou  <ebotcazou@adacore.com>
2518
2519         PR ipa/83983
2520         * ipa-devirt.c (odr_subtypes_equivalent_p): Get the ODR type of both
2521         arguments if they are comparable.
2522
2523 2018-03-02  Richard Sandiford  <richard.sandiford@linaro.org>
2524
2525         PR tree-optimization/84634
2526         * tree-vect-stmts.c (vectorizable_store, vectorizable_load): Replace
2527         masks and masked_loop_p with a single loop_masks, making sure it's
2528         null for bb vectorization.
2529
2530 2018-03-02  Richard Sandiford  <richard.sandiford@linaro.org>
2531
2532         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence)
2533         (vect_analyze_data_ref_access): Use loop->safe_len rather than
2534         loop->force_vectorize to check whether there is no alias.
2535
2536 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
2537
2538         PR target/84614
2539         * rtl.h (prev_real_nondebug_insn, next_real_nondebug_insn): New
2540         prototypes.
2541         * emit-rtl.c (next_real_insn, prev_real_insn): Fix up function
2542         comments.
2543         (next_real_nondebug_insn, prev_real_nondebug_insn): New functions.
2544         * cfgcleanup.c (try_head_merge_bb): Use prev_real_nondebug_insn
2545         instead of a loop around prev_real_insn.
2546         * combine.c (move_deaths): Use prev_real_nondebug_insn instead of
2547         prev_real_insn.
2548
2549         PR inline-asm/84625
2550         * config/i386/i386.c (ix86_print_operand): Use conditional
2551         output_operand_lossage instead of gcc_assert if CONST_VECTOR is not
2552         zero vector.
2553
2554 2018-03-02  Richard Biener  <rguenther@suse.de>
2555
2556         PR tree-optimization/84427
2557         * tree-ssa-pre.c (bitmap_remove_expr_from_set): Remove.
2558         (bitmap_set_subtract_values): Rewrite to handle multiple
2559         exprs per value.
2560         (clean): Likewise.
2561         (prune_clobbered_mems): Likewise.
2562         (phi_translate): Take edge instead of pred/phiblock.
2563         (phi_translate_1): Likewise.
2564         (phi_translate_set): Likewise.  Insert all translated
2565         exprs for a value into the set, keeping possibly multiple
2566         expressions per value.
2567         (compute_antic_aux): Adjust for phi_translate changes.
2568         When intersecting union the expressions and prune those
2569         not in the final value set, keeping possibly multiple
2570         expressions per value.  Do not use value-insertion
2571         for unioning ANTIC_OUT U EXP_GEN - TMP_GEN but merge
2572         all expressions.  Add verification that the value-sets
2573         only shrink during iteration.
2574         (compute_partial_antic_aux): Adjust for the phi_translate changes.
2575         (do_pre_regular_insertion): Likewise.
2576         (do_pre_partial_partial_insertion): Likewise.
2577
2578 2018-03-02  Richard Biener  <rguenther@suse.de>
2579
2580         PR target/82005
2581         * config/darwin.c (saved_debug_info_level): New static global.
2582         (darwin_asm_lto_start): Disable debug info generation for LTO out.
2583         (darwin_asm_lto_end): Restore debug info generation settings.
2584
2585 2018-03-01  Martin Liska  <mliska@suse.cz>
2586
2587         PR sanitizer/82484
2588         * sanopt.c (sanitize_rewrite_addressable_params): Do not handle
2589         volatile arguments.
2590
2591 2018-03-01  Richard Biener  <rguenther@suse.de>
2592
2593         PR debug/84645
2594         * dwarf2out.c (gen_variable_die): Properly handle late VLA
2595         type annotation with LTO when debug was disabled at compile-time.
2596
2597 2018-03-01  Matthew Fortune  <mfortune@gmail.com>
2598
2599         * config/mips/mips.c (mips_final_prescan_insn): Fix incorrect
2600         XINT with INTVAL.
2601         (mips_final_postscan_insn): Likewise.
2602
2603 2018-03-01  Richard Sandiford  <richard.sandiford@linaro.org>
2604
2605         PR rtl-optimization/84528
2606         * alias.c (init_alias_target): Add commentary.
2607         (init_alias_analysis): Only give HARD_FRAME_POINTER_REGNUM
2608         a unique base value if the frame pointer is not eliminated
2609         to the stack pointer.
2610
2611 2018-03-01  Tom de Vries  <tom@codesourcery.com>
2612
2613         PR rtl-optimization/83327
2614         * lra-int.h (hard_regs_spilled_into): Declare.
2615         * lra.c (hard_regs_spilled_into): Define.
2616         (init_reg_info): Init hard_regs_spilled_into.
2617         * lra-spills.c (assign_spill_hard_regs): Update hard_regs_spilled_into.
2618         * lra-lives.c (make_hard_regno_born, make_hard_regno_dead)
2619         (process_bb_lives): Handle hard_regs_spilled_into.
2620         (lra_create_live_ranges_1): Before doing liveness propagation, clear
2621         regs in all_hard_regs_bitmap if set in hard_regs_spilled_into.
2622
2623 2018-02-28  David Edelsohn  <dje.gcc@gmail.com>
2624
2625         * config.gcc (powerpc-ibm-aix7.1.*): New stanza.
2626         (powerpc-ibm-aix[789]*): Default to AIX 7.2.
2627         * config/rs6000/aix71.h (TARGET_DEFAULT): Revert to Power4 ISA.
2628         * config/rs6000/aix72.h: New file.
2629
2630 2018-02-28  Jakub Jelinek  <jakub@redhat.com>
2631
2632         * gimple-ssa-warn-restrict.c (maybe_diag_overlap): Use warning_n
2633         instead of warning_at with conditional singular and plural messages
2634         where possible.
2635
2636         PR target/52991
2637         * stor-layout.c (update_alignment_for_field): For
2638         targetm.ms_bitfield_layout_p (rli->t), if !is_bitfield
2639         && !DECL_PACKED (field), do the alignment update, just use
2640         only desired_align instead of MAX (type_align, desired_align)
2641         as the alignment.
2642         (place_field): Don't do known_align < desired_align handling
2643         early if targetm.ms_bitfield_layout_p (rli->t) and rli->prev_field
2644         is non-NULL, instead do it after rli->prev_field handling and
2645         only if not within a bitfield word.  For DECL_PACKED (field)
2646         use type_align of BITS_PER_UNIT.
2647
2648 2018-02-28  Eric Botcazou  <ebotcazou@adacore.com>
2649
2650         * config/aarch64/aarch64.c (aarch64_emit_probe_stack_range): Remove
2651         superfluous parentheses and trailing spaces.
2652
2653 2018-02-28  Richard Biener  <rguenther@suse.de>
2654
2655         PR tree-optimization/84584
2656         * graphite-scop-detection.c (scop_detection::add_scop): Discard
2657         SCoPs with fake exit edge.
2658
2659 2018-02-28  Martin Liska  <mliska@suse.cz>
2660
2661         PR testsuite/84597
2662         * timevar.c (timer::print): Fix format to properly print 100%
2663         values.
2664
2665 2018-02-28  Richard Biener  <rguenther@suse.de>
2666
2667         PR middle-end/84607
2668         * genmatch.c (capture_info::walk_match): Do not mark
2669         captured expressions without operands as expr_p given
2670         they act more like predicates and should be subject to
2671         "lost tail" side-effect preserving.
2672
2673 2018-02-28  Alexandre Oliva  <aoliva@redhat.com>
2674
2675         PR rtl-optimization/81611
2676         * auto-inc-dec.c (attempt_change): Move dead note from
2677         mem_insn if it's the next use of regno
2678         (find_address): Take address use of reg holding
2679         non-incremented value.  Add parm to limit search to the named
2680         reg only.
2681         (merge_in_block): Attempt to use a mem insn that is the next
2682         use of the original regno.
2683
2684 2018-02-27  Martin Sebor  <msebor@redhat.com>
2685
2686         PR c++/83871
2687         * gcc/doc/invoke.texi (-Wmissing-attributes): New option.
2688         * gcc/print-tree.c (print_node): Handle DECL_UNINLINABLE.
2689
2690 2018-02-27  Martin Sebor  <msebor@redhat.com>
2691
2692         PR translation/84207
2693         * diagnostic-core.h (warning_n, error_n, inform_n): Change
2694         n argument to unsigned HOST_WIDE_INT.
2695         * diagnostic.c (warning_n, error_n, inform_n): Ditto.
2696         (diagnostic_n_impl): Ditto.  Handle arguments in excess of LONG_MAX.
2697         * gimple-ssa-sprintf.c (format_directive): Simplify inform_n call.
2698         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Use warning_n.
2699
2700 2018-02-27  Richard Biener  <rguenther@suse.de>
2701
2702         PR tree-optimization/84512
2703         * tree-vect-loop.c (vect_compute_single_scalar_iteration_cost):
2704         Do not use the estimate returned from record_stmt_cost for
2705         the scalar iteration cost but sum properly using add_stmt_cost.
2706
2707 2018-02-27  Richard Biener  <rguenther@suse.de>
2708
2709         PR tree-optimization/84466
2710         * graphite-scop-detection.c (scop_detection::stmt_simple_for_scop_p):
2711         Adjust last change to less strictly validate use operands.
2712
2713 2018-02-27  Martin Liska  <mliska@suse.cz>
2714
2715         PR gcov-profile/84548
2716         * gcov.c (process_file): Allow partial overlap and consider it
2717         also as group functions.
2718         (output_lines): Properly calculate range of lines for a group.
2719
2720 2018-02-27  Martin Liska  <mliska@suse.cz>
2721
2722         * timevar.c (timer::print_row): Remove 'usr', 'sys', 'wall' and
2723         'ggc' suffixes.  Change first column width.
2724         (timer::print): Fix formatting of the column.
2725
2726 2018-02-27  Alexandre Oliva  <aoliva@redhat.com>
2727
2728         * tree-ssa-live.c (remove_unused_scope_block_p): Do not
2729         preserve inline entry blocks for the sake of debug inline
2730         entry point markers alone.
2731         (remove_unused_locals): Suggest in comments a better place to
2732         force the preservation of inline entry blocks that are
2733         otherwise unused, but do not preserve them.
2734
2735 2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
2736
2737         * config/i386/i386.c (ix86_output_indirect_jmp): Update comments.
2738
2739 2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
2740
2741         PR target/84039
2742         * config/i386/constraints.md (Bs): Replace
2743         ix86_indirect_branch_register with
2744         TARGET_INDIRECT_BRANCH_REGISTER.
2745         (Bw): Likewise.
2746         * config/i386/i386.md (indirect_jump): Likewise.
2747         (tablejump): Likewise.
2748         (*sibcall_memory): Likewise.
2749         (*sibcall_value_memory): Likewise.
2750         Peepholes of indirect call and jump via memory: Likewise.
2751         (*sibcall_GOT_32): Disallowed for TARGET_INDIRECT_BRANCH_REGISTER.
2752         (*sibcall_value_GOT_32): Likewise.
2753         * config/i386/predicates.md (indirect_branch_operand): Likewise.
2754         (GOT_memory_operand): Likewise.
2755         (call_insn_operand): Likewise.
2756         (sibcall_insn_operand): Likewise.
2757         (GOT32_symbol_operand): Likewise.
2758         * config/i386/i386.h (TARGET_INDIRECT_BRANCH_REGISTER): New.
2759
2760 2018-02-26  Eric Botcazou  <ebotcazou@adacore.com>
2761
2762         PR rtl-optimization/83496
2763         * reorg.c (steal_delay_list_from_target): Change REDUNDANT array from
2764         booleans to RTXes.  Call fix_reg_dead_note on every non-null element.
2765         (steal_delay_list_from_fallthrough): Call fix_reg_dead_note on a
2766         redundant insn, if any.
2767         (relax_delay_slots): Likewise.
2768         (update_reg_unused_notes): Rename REDUNDANT_INSN to OTHER_INSN.
2769
2770 2018-02-26  Richard Sandiford  <richard.sandiford@linaro.org>
2771
2772         PR tree-optimization/83965
2773         * tree-vect-patterns.c (vect_reassociating_reduction_p): Assume
2774         that grouped statements are part of a reduction chain.  Return
2775         true if the statement is not marked as a reduction itself but
2776         is part of a group.
2777         (vect_recog_dot_prod_pattern): Don't check whether the statement
2778         is part of a group here.
2779         (vect_recog_sad_pattern): Likewise.
2780         (vect_recog_widen_sum_pattern): Likewise.
2781
2782 2018-02-26  Eric Botcazou  <ebotcazou@adacore.com>
2783
2784         PR debug/84545
2785         * final.c (rest_of_clean_state): Also look for calls inside sequences.
2786
2787 2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
2788
2789         PR target/84530
2790         * config/i386/i386-protos.h (ix86_output_indirect_jmp): Remove
2791         the bool argument.
2792         (ix86_output_indirect_function_return): New prototype.
2793         (ix86_split_simple_return_pop_internal): Likewise.
2794         * config/i386/i386.c (indirect_return_via_cx): New.
2795         (indirect_return_via_cx_bnd): Likewise.
2796         (indirect_thunk_name): Handle return va CX_REG.
2797         (output_indirect_thunk_function): Create alias for
2798         __x86_return_thunk_[re]cx and __x86_return_thunk_[re]cx_bnd.
2799         (ix86_output_indirect_jmp): Remove the bool argument.
2800         (ix86_output_indirect_function_return): New function.
2801         (ix86_split_simple_return_pop_internal): Likewise.
2802         * config/i386/i386.md (*indirect_jump): Don't pass false
2803         to ix86_output_indirect_jmp.
2804         (*tablejump_1): Likewise.
2805         (simple_return_pop_internal): Change it to define_insn_and_split.
2806         Call ix86_split_simple_return_pop_internal to split it for
2807         -mfunction-return=.
2808         (simple_return_indirect_internal): Call
2809         ix86_output_indirect_function_return instead of
2810         ix86_output_indirect_jmp.
2811
2812 2018-02-26  Jakub Jelinek  <jakub@redhat.com>
2813
2814         PR bootstrap/84405
2815         * vec.h (vec_default_construct): For BROKEN_VALUE_INITIALIZATION use
2816         memset and value initialization afterwards.
2817
2818 2018-02-26  Christophe Lyon  <christophe.lyon@linaro.org>
2819
2820         * Makefile.in (lto-wrapper): Use ALL_LINKERFLAGS.
2821
2822 2018-02-26  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
2823
2824         PR target/84521
2825         * common/config/aarch64/aarch64-common.c
2826         (aarch_option_optimization_table[]): Switch
2827         off fomit-frame-pointer
2828
2829 2018-02-26  Kito Cheng  <kito.cheng@gmail.com>
2830             Chung-Ju Wu  <jasonwucj@gmail.com>
2831
2832         * config/nds32/nds32-multiple.md (load_multiple): Disallow
2833         volatile memory.
2834         (store_multiple): Ditto.
2835
2836 2018-02-26  Kito Cheng  <kito.cheng@gmail.com>
2837
2838         * config.gcc: Add --with-cpu support for nds32 target.
2839         * config/nds32/nds32-opts.h (nds32_cpu_type): New.
2840         * config/nds32/nds32.opt: Add -mcpu= option.
2841
2842 2018-02-25  Segher Boessenkool  <segher@kernel.crashing.org>
2843
2844         * config/rs6000/rs6000.opt (mvrsave=no, mvrsave=yes, isel=no,
2845         isel=yes): Warn for these deprecated options.
2846
2847 2018-02-23  David Edelsohn  <dje.gcc@gmail.com>
2848
2849         * config/rs6000/aix71.h (TARGET_DEFAULT): Change to
2850         ISA_2_5_MASKS_EMBEDDED.
2851
2852 2018-02-23  Jakub Jelinek  <jakub@redhat.com>
2853
2854         * ipa-prop.c (ipa_vr_ggc_hash_traits::hash): Hash p->min and
2855         p->max as pointers rather than using iterative_hash_expr.
2856
2857 2018-02-23  Carl Love  <cel@us.ibm.com>
2858
2859         * config/rs6000/rs6000-builtin.def: Change VSIGNED2 and VUNSIGNED2
2860         macro expansions from BU_VSX_2 to BU_P8V_VSX_2 and BU_VSX_OVERLOAD_2 to
2861         BU_P8V_OVERLOAD_2.
2862         * config/rs6000/rs6000-c.c: Change VSX_BUILTIN_VEC_VSIGNED2 to
2863         P8V_BUILTIN_VEC_VSIGNED2.  Change VSX_BUILTIN_VEC_VUNSIGNED2 to
2864         P8V_BUILTIN_VEC_VUNSIGNED2.
2865
2866 2018-02-22  Vladimir Makarov  <vmakarov@redhat.com>
2867
2868         PR target/81572
2869         * lra-int.h (LRA_UNKNOWN_ALT, LRA_NON_CLOBBERED_ALT): New macros.
2870         * lra.c (lra_set_insn_recog_data, lra_update_insn_recog_data): Use
2871         LRA_UNKNOWN_ALT.
2872         * lra-constraints.c (curr_insn_transform): Set up
2873         LRA_NON_CLOBBERED_ALT for moves processed on the fast path.  Use
2874         LRA_UNKNOWN_ALT.
2875         (remove_inheritance_pseudos): Use LRA_UNKNOWN_ALT.
2876         * lra-eliminations.c (spill_pseudos): Ditto.
2877         (process_insn_for_elimination): Ditto.
2878         * lra-lives.c (reg_early_clobber_p): Use the new macros.
2879         * lra-spills.c (spill_pseudos): Use LRA_UNKNOWN_ALT and
2880         LRA_NON_CLOBBERED_ALT.
2881
2882 2018-02-22  Martin Sebor  <msebor@redhat.com>
2883
2884         PR tree-optimization/84480
2885         * gimple-fold.c (gimple_fold_builtin_strcpy): Move warnings
2886         to maybe_diag_stxncpy_trunc.  Call it.
2887         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Integrate warnings
2888         from gimple_fold_builtin_strcpy.  Print inlining stack.
2889         (handle_builtin_stxncpy): Print inlining stack.
2890         * tree-ssa-strlen.h (maybe_diag_stxncpy_trunc): Declare.
2891
2892 2018-02-22  H.J. Lu  <hongjiu.lu@intel.com>
2893
2894         PR target/84176
2895         * config/i386/i386.c (ix86_set_indirect_branch_type): Issue an
2896         error when -mindirect-branch=thunk-extern, -fcf-protection=branch
2897         and -fcheck-pointer-bounds are used together.
2898         (indirect_thunk_prefix): New enum.
2899         (indirect_thunk_need_prefix): New function.
2900         (indirect_thunk_name): Replace need_bnd_p with need_prefix.  Use
2901         "_nt" instead of "_bnd" for NOTRACK prefix.
2902         (output_indirect_thunk): Replace need_bnd_p with need_prefix.
2903         (output_indirect_thunk_function): Likewise.
2904         (): Likewise.
2905         (ix86_code_end): Update output_indirect_thunk_function calls.
2906         (ix86_output_indirect_branch_via_reg): Replace
2907         ix86_bnd_prefixed_insn_p with indirect_thunk_need_prefix.
2908         (ix86_output_indirect_branch_via_push): Likewise.
2909         (ix86_output_function_return): Likewise.
2910         * doc/invoke.texi: Document -mindirect-branch=thunk-extern is
2911         incompatible with -fcf-protection=branch and
2912         -fcheck-pointer-bounds.
2913
2914 2018-02-22  Steve Ellcey  <sellcey@cavium.com>
2915
2916         PR target/83335
2917         * config/aarch64/aarch64.c (aarch64_print_address_internal):
2918         Change gcc_assert call to output_operand_lossage.
2919
2920 2018-02-22  Steve Ellcey  <sellcey@cavium.com>
2921
2922         * doc/extend.texi (__builtin_extend_pointer): Document builtin.
2923
2924 2018-02-22  DJ Delorie  <dj@redhat.com>
2925             Sebastian Perta  <sebastian.perta@renesas.com>
2926             Oleg Endo  <olegendo@gcc.gnu.org>
2927
2928         * config/rx/rx.c (rx_rtx_costs): New function.
2929         (TARGET_RTX_COSTS): Override to use rx_rtx_costs.
2930
2931 2018-02-22  Thomas Preud'homme  <thomas.preudhomme@arm.com>
2932
2933         * config/arm/t-multilib: Map Armv8-R to Armv7 multilibs.
2934
2935 2018-02-22  Martin Liska  <mliska@suse.cz>
2936
2937         PR driver/83193
2938         * common/config/arm/arm-common.c (arm_print_hint_for_cpu_option):
2939         Add "native" as a possible value.
2940
2941 2018-02-22  Martin Liska  <mliska@suse.cz>
2942
2943         PR driver/83193
2944         * config/i386/i386.c (ix86_option_override_internal):
2945         Add "native" as a possible value for -march and -mtune.
2946
2947 2018-02-22  Jakub Jelinek  <jakub@redhat.com>
2948
2949         PR target/84502
2950         * stor-layout.c (finalize_type_size): Propagate TYPE_EMPTY_P flag
2951         to all type variants.
2952
2953         PR tree-optimization/84503
2954         * gimple-ssa-store-merging.c (merged_store_group::merge_into): Compute
2955         width as info->bitpos + info->bitsize - start.
2956         (merged_store_group::merge_overlapping): Simplify width computation.
2957         (check_no_overlap): New function.
2958         (imm_store_chain_info::try_coalesce_bswap): Compute expected
2959         start + width and last_order of the group, fail if check_no_overlap
2960         fails.
2961         (imm_store_chain_info::coalesce_immediate_stores): Don't merge info
2962         to group if check_no_overlap fails.
2963
2964 2018-02-21  Segher Boessenkool  <segher@kernel.crashing.org>
2965
2966         * config/rs6000/altivec.md: Delete contraint arguments to
2967         define_expand, define_split, and define_peephole2, and in
2968         define_insn_and_split if always unused.
2969         * config/rs6000/darwin.md: Ditto.
2970         * config/rs6000/dfp.md: Ditto.
2971         * config/rs6000/rs6000.md: Ditto.
2972         * config/rs6000/sync.md: Ditto.
2973         * config/rs6000/vector.md: Ditto.
2974         * config/rs6000/vsx.md: Ditto.
2975
2976 2018-02-21  Segher Boessenkool  <segher@kernel.crashing.org>
2977
2978         * config/rs6000/altivec.md: Write output control strings as braced
2979         blocks instead of double-quoted strings.
2980         * config/rs6000/darwin.md: Ditto.
2981         * config/rs6000/rs6000.md: Ditto.
2982         * config/rs6000/vector.md: Ditto.
2983         * config/rs6000/vsx.md: Ditto.
2984
2985 2018-02-21  Jason Merrill  <jason@redhat.com>
2986
2987         PR c++/84314 - ICE with templates and fastcall attribute.
2988         * attribs.c (build_type_attribute_qual_variant): Remove assert.
2989
2990 2018-02-21  Jan Hubicka  <hubicka@ucw.cz>
2991
2992         * ipa-cp.c (determine_versionability): Fix comment typos.
2993
2994 2018-02-21  Jan Hubicka  <hubicka@ucw.cz>
2995
2996         PR c/84229
2997         * ipa-cp.c (determine_versionability): Do not version functions caling
2998         va_arg_pack.
2999
3000 2018-02-21  Martin Liska  <mliska@suse.cz>
3001
3002         PR driver/83193
3003         * config/aarch64/aarch64.c (aarch64_print_hint_for_core_or_arch):
3004         Add "native" as a possible value.
3005         * config/aarch64/aarch64.h (HAVE_LOCAL_CPU_DETECT):  Define
3006         the macro when native cpu detection is available.
3007
3008 2018-02-21  Martin Liska  <mliska@suse.cz>
3009
3010         PR driver/83193
3011         * common/config/arm/arm-common.c (arm_print_hint_for_arch_option):
3012         Add "native" as a possible value.
3013         * config/arm/arm.h (HAVE_LOCAL_CPU_DETECT): Define the macro
3014         when native cpu detection is available.
3015
3016 2018-02-21  Jakub Jelinek  <jakub@redhat.com>
3017             Martin Sebor  <msebor@redhat.com>
3018
3019         PR tree-optimization/84478
3020         * gimple-fold.h (get_range_strlen): Add a bool argument defaulted to
3021         false.
3022         * gimple-fold.c (get_range_strlen): Make minlen const and assume it
3023         can't be NULL.  Change FUZZY from bool to int, for 1 add PHI/COND_EXPR
3024         support which is conservatively correct, for 2 only stay conservative
3025         for maxlen.  Formatting and comment capitalization fixes.  Add STRICT
3026         argument to the 2 argument get_range_strlen, adjust 6 arg
3027         get_range_strlen caller and clear minmaxlen[0] and [1] if it returned
3028         false.
3029         (get_maxval_strlen): Adjust 6 arg get_range_strlen caller.
3030         (gimple_fold_builtin_strlen): Pass true as last argument to
3031         get_range_strlen.
3032
3033 2018-02-20  Martin Sebor  <msebor@redhat.com>
3034
3035         PR middle-end/84095
3036         * gimple-ssa-warn-restrict.c (builtin_memref::extend_offset_range): New.
3037         (builtin_memref::set_base_and_offset): Same.  Handle inner references.
3038         (builtin_memref::builtin_memref): Factor out parts into
3039         set_base_and_offset and call it.
3040
3041 2018-02-20  Richard Sandiford  <richard.sandiford@linaro.org>
3042
3043         PR middle-end/84406
3044         * optabs-query.c (find_widening_optab_handler_and_mode): If from_mode
3045         is a scalar_int_mode, assert that to_mode is a scalar_int_mode with
3046         greater precision.  If to_mode is a MODE_PARTIAL_INT, stop the
3047         search at the associated MODE_INT.
3048
3049 2018-02-20  Jeff Law  <law@redhat.com>
3050
3051         PR middle-end/82123
3052         PR tree-optimization/81592
3053         PR middle-end/79257
3054         * gimple-ssa-sprintf.c (format_integer): Query EVRP range analyzer
3055         for range data rather than using global data.
3056         * gimple-ssa-sprintf.c (get_int_range): Query EVRP range analyzer for
3057         range data rather than using global data.
3058         * gimple-ssa-sprintf.c (get_int_range): Accept vr_values parameter
3059         pass it to children as needed.
3060         (struct directive::fmtresult): Similarly.
3061         (struct directive::set_width): Similarly.
3062         (struct directive::set_precision): Similarly.
3063         (format_integer, format_directive, parse_directive): Similarly.
3064         (format_none): Accept unnamed vr_values parameter.
3065         (format_percent, format_floating, format_character): Similarly.
3066         (format_string, format_plain): Similarly.
3067         * gimple-ssa-sprintf.c (sprintf_dom_walker::handle_gimple_call): Query
3068         the EVRP range analyzer for range data rather than using global data.
3069         * gimple-ssa-sprintf.c: Include alloc-pool.h, vr-values.h and
3070         gimple-ssa-evrp-analyze.h
3071         (class sprintf_dom_walker): Add after_dom_children member function.
3072         Add evrp_range_analyzer member.
3073         (sprintf_dom_walker::before_dom_children): Call into the EVRP
3074         range analyzer as needed.
3075         (sprintf_dom_walker::after_dom_children): New member function.
3076         * gimple-ssa-evrp-analyze.c (evrp_range_analyzer::enter): Do nothing
3077         if not optimizing.
3078         (evrp_range_analyzer::record_ranges_from_stmt): Likewise.
3079         (evrp_range_analyzer::pop_to_marker): Likewise.
3080
3081 2018-02-20  Richard Sandiford  <richard.sandiford@linaro.org>
3082
3083         PR tree-optimization/84419
3084         * internal-fn.c (expand_call_mem_ref): Create a TARGET_MEM_REF
3085         with the required type if its current type is compatible but
3086         different.
3087
3088 2018-02-20  Jakub Jelinek  <jakub@redhat.com>
3089
3090         PR middle-end/82004
3091         * match.pd (pow(C,x) -> exp(log(C)*x)): Delay all folding until
3092         after vectorization.
3093
3094 2018-02-20  Martin Liska  <mliska@suse.cz>
3095
3096         PR driver/83193
3097         * config/aarch64/aarch64.c (aarch64_print_hint_for_core_or_arch): Print
3098         possible values if we don't have a hint.
3099
3100 2018-02-20  Martin Liska  <mliska@suse.cz>
3101
3102         PR c/84310
3103         PR target/79747
3104         * final.c (shorten_branches): Build align_tab array with one
3105         more element.
3106         * opts.c (finish_options): Add alignment option limit check.
3107         (MAX_CODE_ALIGN): Likewise.
3108         (MAX_CODE_ALIGN_VALUE): Likewise.
3109         * doc/invoke.texi: Document maximum allowed option value for
3110         all -falign-* options.
3111
3112 2018-02-19  Jakub Jelinek  <jakub@redhat.com>
3113
3114         PR target/84146
3115         * reg-notes.def (REG_CALL_ARG_LOCATION): New reg note.
3116         * insn-notes.def (NOTE_INSN_CALL_ARG_LOCATION): Remove.
3117         * var-tracking.c (emit_note_insn_var_location): Remove all references
3118         to NOTE_INSN_CALL_ARG_LOCATION.
3119         (emit_notes_in_bb): Emit arguments as REG_CALL_ARG_LOCATION note on
3120         the CALL_INSN rather than separate NOTE_INSN_CALL_ARG_LOCATION note.
3121         Use copy_rtx_if_shared.
3122         * dwarf2out.c (gen_subprogram_die): Use XEXP with 0 instead of
3123         NOTE_VAR_LOCATION on ca_loc->call_arg_loc_note.
3124         (dwarf2out_var_location): Remove handling of
3125         NOTE_INSN_CALL_ARG_LOCATION, instead handle REG_CALL_ARG_LOCATION note
3126         on call_insn.
3127         * final.c (final_scan_insn): Remove all references to
3128         NOTE_INSN_CALL_ARG_LOCATION.
3129         (rest_of_clean_state): Likewise.  Remove REG_CALL_ARG_LOCATION notes
3130         before dumping final insns.
3131         * except.c (emit_note_eh_region_end): Remove all references to
3132         NOTE_INSN_CALL_ARG_LOCATION.
3133         * config/alpha/alpha.c (alpha_pad_function_end): Likewise.
3134         * config/c6x/c6x.c (c6x_gen_bundles): Likewise.
3135         * config/arc/arc.c (hwloop_optimize): Likewise.
3136         * config/arm/arm.c (create_fix_barrier): Likewise.
3137         * config/s390/s390.c (s390_chunkify_start): Likewise.
3138         * config/sh/sh.c (find_barrier): Likewise.
3139         * config/i386/i386.c (rest_of_insert_endbranch,
3140         ix86_seh_fixup_eh_fallthru): Likewise.
3141         * config/xtensa/xtensa.c (hwloop_optimize): Likewise.
3142         * config/iq2000/iq2000.c (final_prescan_insn): Likewise.
3143         * config/frv/frv.c (frv_function_prologue): Likewise.
3144         * emit-rtl.c (try_split): Likewise.  Copy over REG_CALL_ARG_LOCATION
3145         reg note.
3146         (note_outside_basic_block_p): Remove all references to
3147         NOTE_INSN_CALL_ARG_LOCATION.
3148         * gengtype.c (adjust_field_rtx_def): Likewise.
3149         * print-rtl.c (rtx_writer::print_rtx_operand_code_0, print_insn):
3150         Likewise.
3151         * jump.c (cleanup_barriers, delete_related_insns): Likewise.
3152         * cfgrtl.c (force_nonfallthru_and_redirect): Likewise.
3153
3154         PR c++/84444
3155         * builtins.c (builtin_mathfn_code): Don't check if CALL_EXPR_FN (t)
3156         is ADDR_EXPR.
3157
3158         PR tree-optimization/84452
3159         * tree-vect-patterns.c (vect_recog_pow_pattern): Don't call
3160         expand_simd_clones if targetm.simd_clone.compute_vecsize_and_simdlen
3161         is NULL.
3162
3163 2018-02-19  Martin Liska  <mliska@suse.cz>
3164
3165         PR sanitizer/82183
3166         * passes.def: Put pass_sancov_O0 before pass_lower_switch with -O0.
3167
3168 2018-02-19  Martin Liska  <mliska@suse.cz>
3169             Richard Sandiford  <richard.sandiford@linaro.org>
3170
3171         PR tree-optimization/82491
3172         * gimple-fold.c (get_base_constructor): Make earlier bail out
3173         to prevent ubsan.
3174
3175 2018-02-19  Carl Love  <cel@us.ibm.com>
3176
3177         * config/rs6000/rs6000-builtin.def: Change NEG macro expansions from
3178         BU_ALTIVEC_A to BU_P8V_AV_1 and BU_ALTIVEC_OVERLOAD_1 to
3179         BU_P8V_OVERLOAD_1.
3180         * config/rs6000/rs6000-c.c: Change ALTIVEC_BUILTIN_VEC_NEG to
3181         P8V_BUILTIN_VEC_NEG.
3182
3183 2018-02-19  Sebastian Perta  <sebastian.perta@renesas.com>
3184
3185         * config/rl78/rl78.md (movdf): New define expand.
3186
3187 2018-02-19  Martin Liska  <mliska@suse.cz>
3188
3189         PR other/80589
3190         * doc/invoke.texi: Fix typo.
3191         * params.def (PARAM_MAX_LOOP_HEADER_INSNS): Likewise.
3192
3193 2018-02-18  Segher Boessenkool  <segher@kernel.crashing.org>
3194
3195         * config/rs6000/rs6000.c (rs6000_option_override_internal): Don't
3196         handle rs6000_single_float and rs6000_double_float specially for
3197         e500 family CPUs.
3198
3199 2018-02-16  Jeff Law  <law@redhat.com>
3200
3201         * config/rx/rx.c (add_pop_cfi_notes): New function.;
3202         (pop_regs): Use it.
3203
3204 2018-02-16  Jakub Jelinek  <jakub@redhat.com>
3205
3206         PR ipa/84425
3207         * ipa-inline.c (inline_small_functions): Fix a typo.
3208
3209 2018-02-16  Nathan Sidwell  <nathan@acm.org>
3210
3211         * doc/extend.texi (Backwards Compatibility): Americanize 'behaviour'.
3212
3213 2018-02-16  Carl Love  <cel@us.ibm.com>
3214
3215         * config/rs6000/rs6000-builtin.def: Add BU_P8V_VSX_2 macro definition.
3216         Change FLOAT2 expansions from BU_VSX_2 to BU_P8V_VSX_2 and
3217         from BU_VSX_OVERLOAD_2 to BU_P8V_OVERLOAD_2.
3218         * config/rs6000/rs6000-c.c: Changed macro VSX_BUILTIN_VEC_FLOAT2
3219         expansion to P8V_BUILTIN_VEC_FLOAT2.
3220
3221 2018-02-16  Vladimir Makarov  <vmakarov@redhat.com>
3222
3223         PR rtl-optimization/70023
3224         * lra-constraints.c (inherit_in_ebb): Take hard reg mode of
3225         src_regno into account.
3226
3227 2018-02-16  Carl Love  <cel@us.ibm.com>
3228
3229         * config/rs6000/altivec.h: Remove vec_vextract4b and vec_vinsert4b.
3230         * config/rs6000/rs6000-builtin.def: Remove macro expansion for
3231         VEXTRACT4B, VINSERT4B, VINSERT4B_DI and VEXTRACT4B.
3232         * config/rs6000/rs6000.c: Remove case statements for
3233         P9V_BUILTIN_VEXTRACT4B, P9V_BUILTIN_VEC_VEXTRACT4B,
3234         P9V_BUILTIN_VINSERT4B, P9V_BUILTIN_VINSERT4B_DI,
3235         and P9V_BUILTIN_VEC_VINSERT4B.
3236         * config/rs6000/rs6000-c.c (altivec_expand_builtin): Remove entries for
3237         P9V_BUILTIN_VEC_VEXTRACT4B and P9V_BUILTIN_VEC_VINSERT4B.
3238         * config/rs6000/vsx.md:
3239         * doc/extend.texi: Remove vec_vextract4b, non ABI definitions for
3240         vec_insert4b.
3241
3242 2018-02-16  Carl Love  <cel@us.ibm.com>
3243
3244         * config/rs6000/altivec.h: Add builtin names vec_extract4b
3245         vec_insert4b.
3246         * config/rs6000/rs6000-builtin.def: Add INSERT4B and EXTRACT4B
3247         definitions.
3248         * config/rs6000/rs6000-c.c: Add the definitions for
3249         P9V_BUILTIN_VEC_EXTRACT4B and P9V_BUILTIN_VEC_INSERT4B.
3250         * config/rs6000/rs6000.c (altivec_expand_builtin): Add
3251         P9V_BUILTIN_EXTRACT4B and P9V_BUILTIN_INSERT4B case statements.
3252         * config/rs6000/vsx.md: Add define_insn extract4b.  Add define_expand
3253         definition for insert4b and define insn *insert3b_internal.
3254         * doc/extend.texi: Add documentation for vec_extract4b.
3255
3256 2018-02-16  Nathan Sidwell  <nathan@acm.org>
3257
3258         * doc/extend.texi (Backwards Compatibility): Mention friend
3259         injection.  Note for-scope is deprecated.
3260         * doc/invoke.texi (-ffriend-injection): Deprecate.
3261
3262 2018-02-16  Segher Boessenkool  <segher@kernel.crashing.org>
3263
3264         * combine.c (try_combine): When adjusting LOG_LINKS for the destination
3265         that moved to I2, also allow destinations that are a paradoxical
3266         subreg (instead of a normal reg).
3267
3268 2018-02-16  Oleg Endo  <olegendo@gcc.gnu.org>
3269
3270         PR target/83831
3271         * config/rx/rx.c (rx_fuse_in_memory_bitop): Convert shift operand
3272         to QImode.
3273
3274 2018-02-16  Richard Biener  <rguenther@suse.de>
3275
3276         PR tree-optimization/84037
3277         PR tree-optimization/84016
3278         PR target/82862
3279         * config/i386/i386.c (ix86_builtin_vectorization_cost):
3280         Adjust vec_construct for the fact we need additional higher latency
3281         128bit inserts for AVX256 and AVX512 vector builds.
3282         (ix86_add_stmt_cost): Scale vector construction cost for
3283         elementwise loads.
3284
3285 2018-02-16  Richard Biener  <rguenther@suse.de>
3286
3287         PR tree-optimization/84417
3288         * tree-ssa.c (non_rewritable_mem_ref_base): Properly constrain
3289         the MEM_REF offset when conversion to BIT_FIELD_REF is desired.
3290         (non_rewritable_lvalue_p): Likewise, use poly-ints.
3291
3292 2018-02-16  Martin Liska  <mliska@suse.cz>
3293
3294         PR sanitizer/84307
3295         * internal-fn.def (ASAN_CHECK): Set proper flags.
3296         (ASAN_MARK): Likewise.
3297
3298 2018-02-16  Julia Koval  <julia.koval@intel.com>
3299
3300         * config/i386/i386.c (ix86_option_override_internal): Remove PTA_CLWB
3301         from PTA_CANNONLAKE.
3302
3303 2018-02-16  Jakub Jelinek  <jakub@redhat.com>
3304
3305         PR target/84272
3306         * config/aarch64/cortex-a57-fma-steering.c (fma_forest::merge_forest):
3307         Use ++iter rather than iter++ for std::list iterators.
3308         (func_fma_steering::dfs): Likewise.  Don't delete nodes right away,
3309         defer deleting them until all nodes in the forest are processed.  Do
3310         free even leaf nodes.  Change to_process into auto_vec.
3311
3312         PR bootstrap/84405
3313         * system.h (BROKEN_VALUE_INITIALIZATION): Define for GCC < 4.3.
3314         * vec.h (vec_default_construct): Use memset instead of placement new
3315         if BROKEN_VALUE_INITIALIZATION is defined.
3316         * hash-table.h (hash_table<Descriptor, Allocator>::empty_slow): Use
3317         memset instead of value initialization if BROKEN_VALUE_INITIALIZATION
3318         is defined.
3319
3320         PR rtl-optimization/83723
3321         * lra-int.h (lra_substitute_pseudo): Add DEBUG_P argument.
3322         * lra.c (lra_substitute_pseudo): Likewise.  If true, use
3323         gen_rtx_raw_SUBREG instead of gen_rtx_SUBREG.  Pass DEBUG_P to
3324         recursive calls.
3325         (lra_substitute_pseudo_within_insn): Adjust lra_substitute_pseudo
3326         callers.
3327         * lra-constraints.c (inherit_reload_reg, split_reg): Likewise.
3328
3329 2018-02-16  Eric Botcazou  <ebotcazou@adacore.com>
3330
3331         PR rtl-optimization/81443
3332         * rtlanal.c (num_sign_bit_copies1) <SUBREG>: Do not propagate results
3333         from inner REGs to paradoxical SUBREGs.
3334
3335 2018-02-16  Richard Biener  <rguenther@suse.de>
3336
3337         PR tree-optimization/84399
3338         * graphite-scop-detection.c (scop_detection::stmt_simple_for_scop_p):
3339         For operands we can analyze at their definition make sure we can
3340         analyze them at each use as well.
3341
3342 2018-02-16  Richard Biener  <rguenther@suse.de>
3343
3344         PR tree-optimization/84190
3345         * tree-ssa.c (non_rewritable_mem_ref_base): Do not touch
3346         volatile accesses if the decl isn't volatile.
3347
3348 2018-02-15  Jason Merrill  <jason@redhat.com>
3349
3350         PR c++/84314 - ICE with templates and fastcall attribute.
3351         * attribs.c (build_type_attribute_qual_variant): Don't clobber
3352         TYPE_CANONICAL on an existing type.
3353
3354 2018-02-15  Jakub Jelinek  <jakub@redhat.com>
3355
3356         PR tree-optimization/84383
3357         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Don't look at
3358         dstoff nor call operand_equal_p if dstbase is NULL.
3359
3360         PR tree-optimization/84334
3361         * match.pd ((A +- CST1) +- CST2 -> A + CST3): If A is
3362         also a CONSTANT_CLASS_P, punt.
3363
3364 2018-02-14  Jim Wilson  <jimw@sifive.com>
3365
3366         * config/riscv/riscv.c (riscv_first_stack_step): Move locals after
3367         first SMALL_OPERAND check.  New local min_second_step.  Move assert
3368         to where locals are set.  Add TARGET_RVC support.
3369         * config/riscv/riscv.h (C_SxSP_BITS, SWSP_REACH, SDSP_REACH): New.
3370
3371 2018-02-14  Indu Bhagat  <indu.bhagat@oracle.com>
3372
3373         * doc/invoke.texi: Correct -Wformat-overflow code sample.
3374
3375 2018-02-14  Martin Sebor  <msebor@redhat.com>
3376
3377         PR tree-optimization/83698
3378         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): For
3379         arrays constrain the offset range to their bounds.
3380         (builtin_access::strcat_overlap): Adjust the bounds of overlap offset.
3381         (builtin_access::overlap): Avoid setting the size of overlap if it's
3382         already been set.
3383         (maybe_diag_overlap): Also consider arrays when deciding what values
3384         of offsets to include in diagnostics.
3385
3386 2018-02-14  Martin Sebor  <msebor@redhat.com>
3387
3388         PR c/84108
3389         * attribs.c (diag_attr_exclusions): Consider the exclusion(s)
3390         that correspond to the kind of a declaration.
3391
3392 2018-02-14  John David Anglin  <danglin@gcc.gnu.org>
3393
3394         PR target/83984
3395         * config/pa/pa.md: Load address of PIC label using the linkage table
3396         if the label is nonlocal.
3397
3398 2018-02-14  Kelvin Nilsen  <kelvin@gcc.gnu.org>
3399
3400         * config/rs6000/rs6000.c (rs6000_option_override_internal): Issue
3401         warning message if user requests -maltivec=be.
3402         * doc/invoke.texi: Document deprecation of -maltivec=be.
3403
3404 2018-02-14  Will Schmidt  <will_schmidt@vnet.ibm.com>
3405
3406         PR target/84220
3407         * config/rs6000/rs6000-c.c: Update definitions for
3408         ALTIVEC_BUILTIN_VEC_SLD, ALTIVEC_BUILTIN_VEC_SLDW,
3409         VEC_XXSLDWI and ALTIVEC_BUILTIN_VEC_XXPERMDI builtins.
3410
3411 2018-02-14  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
3412
3413         PR target/84239
3414         * config/i386/cetintrin.h: Remove _rdssp[d|q] and
3415         add _get_ssp intrinsics. Remove argument from
3416         __builtin_ia32_rdssp[d|q].
3417         * config/i386/i386-builtin-types.def: Add UINT_FTYPE_VOID.
3418         * config/i386/i386-builtin.def: Remove argument from
3419         __builtin_ia32_rdssp[d|q].
3420         * config/i386/i386.c: Use UINT_FTYPE_VOID. Use
3421         ix86_expand_special_args_builtin for _rdssp[d|q].
3422         * config/i386/i386.md: Remove argument from rdssp[si|di] insn.
3423         Clear register before usage.
3424         * doc/extend.texi: Remove argument from __builtin_ia32_rdssp[d|q].
3425         Add documentation for new _get_ssp and _inc_ssp intrinsics.
3426
3427 2018-02-14  Richard Sandiford  <richard.sandiford@linaro.org>
3428
3429         PR tree-optimization/84357
3430         * tree-data-ref.c (object_address_invariant_in_loop_p): Check
3431         operand 1 of an ARRAY_REF too.
3432
3433 2018-02-14  Oleg Endo  <olegendo@gcc.gnu.org>
3434
3435         PR target/83831
3436         * config/rx/rx-protos.h (rx_reg_dead_or_unused_after_insn,
3437         rx_copy_reg_dead_or_unused_notes, rx_fuse_in_memory_bitop): New
3438         declarations.
3439         (set_of_reg): New struct.
3440         (rx_find_set_of_reg, rx_find_use_of_reg): New functions.
3441         * config/rx/rx.c (rx_reg_dead_or_unused_after_insn,
3442         rx_copy_reg_dead_or_unused_notes, rx_fuse_in_memory_bitop): New
3443         functions.
3444         * config/rx/rx.md (andsi3, iorsi3, xorsi3): Convert to insn_and_split.
3445         Split into bitclr, bitset, bitinvert patterns if appropriate.
3446         (*bitset, *bitinvert, *bitclr): Convert to named insn_and_split and
3447         use rx_fuse_in_memory_bitop.
3448         (*bitset_in_memory, *bitinvert_in_memory, *bitclr_in_memory): Convert
3449         to named insn, correct maximum insn length.
3450
3451 2018-02-14  Jozef Lawrynowicz  <jozefl.gcc@gmail.com>
3452
3453         PR target/79242
3454         * machmode.def: Define a complex mode for PARTIAL_INT.
3455         * genmodes.c (complex_class): Return MODE_COMPLEX_INT for
3456         MODE_PARTIAL_INT.
3457         * doc/rtl.texi: Document CSPImode.
3458         * config/msp430/msp430.c (msp430_hard_regno_nregs): Add CPSImode
3459         handling.
3460         (msp430_hard_regno_nregs_with_padding): Likewise.
3461
3462 2018-02-13  Peter Bergner  <bergner@vnet.ibm.com>
3463
3464         PR target/84279
3465         * config/rs6000/rs6000.c (mem_operand_gpr): Disallow altivec addresses.
3466
3467 2018-02-13  Segher Boessenkool  <segher@kernel.crashing.org>
3468
3469         PR rtl-optimization/84169
3470         * combine.c (try_combine): New variable split_i2i3.  Set it to true if
3471         we generated a parallel as new i3 and we split that to new i2 and i3
3472         instructions.  Handle split_i2i3 similar to swap_i2i3: scan the
3473         LOG_LINKs of i3 to see which of those need to link to i2 now.  Link
3474         those to i2, not i1.  Partially rewrite this scan code.
3475
3476 2018-02-13  Jakub Jelinek  <jakub@redhat.com>
3477
3478         PR c/82210
3479         * stor-layout.c (place_field): For variable length fields, adjust
3480         offset_align afterwards not just based on the field's alignment,
3481         but also on the size.
3482
3483         PR middle-end/84309
3484         * match.pd (pow(C,x) -> exp(log(C)*x)): Use exp2s and log2s instead
3485         of exps and logs in the use_exp2 case.
3486
3487 2018-02-13  Jeff Law  <law@redhat.com>
3488
3489         * config/rl/rl78.c (rl78_attribute_table): Fix terminator and
3490         entry for "vector".
3491
3492         * config/rl78/rl78.c (rl78_handle_func_attribute): Mark
3493         ARGS as unused.
3494
3495 2018-02-13  Alexandre Oliva  <aoliva@redhat.com>
3496
3497         PR debug/84342
3498         PR debug/84319
3499         * common.opt (gas-loc-support, gas-locview-support): New.
3500         (ginline-points, ginternal-reset-location-views): New.
3501         * doc/invoke.texi: Document them.  Use @itemx where intended.
3502         (gvariable-location-views): Adjust.
3503         * target.def (reset_location_view): New.
3504         * doc/tm.texi.in (DWARF2_ASM_VIEW_DEBUG_INFO): New.
3505         (TARGET_RESET_LOCATION_VIEW): New.
3506         * doc/tm.texi: Rebuilt.
3507         * dwarf2out.c (dwarf2out_default_as_loc_support): New.
3508         (dwarf2out_default_as_locview_support): New.
3509         (output_asm_line_debug_info): Use option variables.
3510         (dwarf2out_maybe_output_loclist_view_pair): Likewise.
3511         (output_loc_list): Likewise.
3512         (add_high_low_attributes): Check option variables.
3513         Don't output entry view attribute in strict mode.
3514         (gen_inlined_subroutine_die): Check option variables.
3515         (dwarf2out_inline_entry): Likewise.
3516         (init_sections_and_labels): Likewise.
3517         (dwarf2out_early_finish): Likewise.
3518         (maybe_reset_location_view): New, from...
3519         (dwarf2out_var_location): ... here.  Call it.
3520         * debug.h (dwarf2out_default_as_loc_support): Declare.
3521         (dwarf2out_default_as_locview_support): Declare.
3522         * hooks.c (hook_int_rtx_insn_0): New.
3523         * hooks.h (hook_int_rtx_insn_0): Declare.
3524         * toplev.c (process_options): Take -gas-loc-support and
3525         -gas-locview-support from dwarf2out.  Enable
3526         -gvariable-location-views by default only with locview
3527         assembler support.  Enable -ginternal-reset-location-views by
3528         default only if the target defines the corresponding hook.
3529         Enable -ginline-points by default if location views are
3530         enabled; force it disabled if statement frontiers are
3531         disabled.
3532         * tree-inline.c (expand_call_inline): Check option variables.
3533         * tree-ssa-live.c (remove_unused_scope_block_p): Likewise.
3534
3535 2018-02-13  Richard Sandiford  <richard.sandiford@linaro.org>
3536
3537         PR tree-optimization/84321
3538         * tree-vrp.c (intersect_range_with_nonzero_bits): Fix VR_ANTI_RANGE
3539         handling.  Also check whether the anti-range contains any values
3540         that satisfy the mask; switch to a VR_RANGE if not.
3541
3542 2018-02-13  Paolo Bonzini  <bonzini@gnu.org>
3543
3544         PR sanitizer/84340
3545         * internal-fn.def (ASAN_CHECK, ASAN_MARK): Revert changes to fnspec.
3546
3547 2018-02-13  Martin Jambor  <mjambor@suse.cz>
3548
3549         PR c++/83990
3550         * ipa-param-manipulation.c (ipa_modify_call_arguments): Use location
3551         of call statements, also set location of a load to a temporary.
3552
3553 2018-02-13  Sebastian Perta  <sebastian.perta@renesas.com>
3554
3555         * config/rl78/rl78.c (add_vector_labels): New function.
3556         * config/rl78/rl78.c (rl78_handle_vector_attribute): New function.
3557         * config/rl78/rl78.c (rl78_start_function): Call add_vector_labels.
3558         * config/rl78/rl78.c (rl78_handle_func_attribute): Removed the assert
3559         which checks that no arguments are passed.
3560         * config/rl78/rl78.c (rl78_attribute_table): Add "vector" attribute.
3561         * doc/extend.texi: Documentation for the new attribute.
3562
3563 2018-02-13  Andreas Schwab  <schwab@suse.de>
3564
3565         * config/riscv/linux.h (CPP_SPEC): Define.
3566
3567 2018-02-13  Jakub Jelinek  <jakub@redhat.com>
3568
3569         PR target/84335
3570         * config/i386/i386.c (ix86_init_mmx_sse_builtins): Pass
3571         OPTION_MASK_ISA_AES | OPTION_MASK_ISA_SSE2 instead of
3572         OPTION_MASK_ISA_AES as first argument to def_builtin_const
3573         for AES builtins.  Pass OPTION_MASK_ISA_PCLMUL | OPTION_MASK_ISA_SSE2
3574         instead of OPTION_MASK_ISA_PCLMUL as first argument to
3575         def_builtin_const for __builtin_ia32_pclmulqdq128 builtin.
3576         * config/i386/wmmintrin.h: If __SSE2__ is not defined, enable it
3577         temporarily for AES and PCLMUL builtins.
3578
3579         PR tree-optimization/84339
3580         * gimple-fold.c (get_range_strlen): Set *FLEXP to true when handling
3581         ARRAY_REF where first operand is array_at_struct_end_p COMPONENT_REF.
3582         Formatting fixes.
3583
3584         PR middle-end/84309
3585         * match.pd (pow(C,x) -> exp(log(C)*x)): Optimize instead into
3586         exp2(log2(C)*x) if C is a power of 2 and c99 runtime is available.
3587         * generic-match-head.c (canonicalize_math_after_vectorization_p): New
3588         inline function.
3589         * gimple-match-head.c (canonicalize_math_after_vectorization_p): New
3590         inline function.
3591         * omp-simd-clone.h: New file.
3592         * omp-simd-clone.c: Include omp-simd-clone.h.
3593         (expand_simd_clones): No longer static.
3594         * tree-vect-patterns.c: Include fold-const-call.h, attribs.h,
3595         cgraph.h and omp-simd-clone.h.
3596         (vect_recog_pow_pattern): Optimize pow(C,x) to exp(log(C)*x).
3597         (vect_recog_widen_shift_pattern): Formatting fix.
3598         (vect_pattern_recog_1): Don't check optab for calls.
3599
3600         PR target/84336
3601         * config/i386/sse.md (<avx512>_vpermi2var<mode>3_mask): Force
3602         operands[2] into a REG before using gen_lowpart on it.
3603
3604 2018-02-12  Jeff Law  <law@redhat.com>
3605
3606         PR target/83760
3607         * config/sh/sh.c (find_barrier): Consider a sibling call
3608         a barrier as well.
3609
3610         * cse.c (try_back_substitute_reg): Move any REG_ARGS_SIZE note when
3611         successfully back substituting a reg.
3612
3613 2018-02-12  Richard Biener  <rguenther@suse.de>
3614
3615         PR tree-optimization/84037
3616         * tree-vect-slp.c (vect_analyze_slp_cost): Add visited
3617         parameter, move visited init to caller.
3618         (vect_slp_analyze_operations): Separate cost from validity
3619         check, initialize visited once for all instances.
3620         (vect_schedule_slp): Analyze map to CSE vectorized nodes once
3621         for all instances.
3622         * tree-vect-stmts.c (vect_model_simple_cost): Make early
3623         out an assert.
3624         (vect_model_promotion_demotion_cost): Likewise.
3625         (vectorizable_bswap): Guard cost modeling with !slp_node
3626         instead of !PURE_SLP_STMT to avoid double-counting on hybrid
3627         SLP stmts.
3628         (vectorizable_call): Likewise.
3629         (vectorizable_conversion): Likewise.
3630         (vectorizable_assignment): Likewise.
3631         (vectorizable_shift): Likewise.
3632         (vectorizable_operation): Likewise.
3633         (vectorizable_store): Likewise.
3634         (vectorizable_load): Likewise.
3635         (vectorizable_condition): Likewise.
3636         (vectorizable_comparison): Likewise.
3637
3638 2018-02-12  Paolo Bonzini  <bonzini@gnu.org>
3639
3640         PR sanitizer/84307
3641         * internal-fn.def (ASAN_CHECK): Fix fnspec to account for return value.
3642         (ASAN_MARK): Fix fnspec to account for return value, change pointer
3643         argument from 'R' to 'W' so that the pointed-to datum is clobbered.
3644
3645 2018-02-08  Jan Hubicka  <hubicka@ucw.cz>
3646
3647         PR middle-end/83665
3648         * params.def (inline-min-speedup): Increase from 8 to 15.
3649         (max-inline-insns-auto): Decrease from 40 to 30.
3650         * ipa-split.c (consider_split): Add some buffer for function to
3651         be considered inlining candidate.
3652         * invoke.texi (max-inline-insns-auto, inline-min-speedup): UPdate
3653         default values.
3654
3655 2018-02-12  Richard Biener  <rguenther@suse.de>
3656
3657         PR tree-optimization/84037
3658         * tree-vect-slp.c (vect_build_slp_tree_2): Try swapping the
3659         matched stmts if we cannot swap the non-matched ones.
3660
3661 2018-02-12  Olga Makhotina  <olga.makhotina@intel.com>
3662
3663         * config/i386/avx512fintrin.h (_mm_mask_scalef_round_sd,
3664         _mm_maskz_scalef_round_sd, _mm_mask_scalef_round_ss,
3665         _mm_maskz_scalef_round_ss): New intrinsics.
3666         (__builtin_ia32_scalefsd_round, __builtin_ia32_scalefss_round): Fix.
3667         * config/i386/i386-builtin.def (__builtin_ia32_scalefsd_round,
3668         __builtin_ia32_scalefss_round): Remove.
3669         (__builtin_ia32_scalefsd_mask_round,
3670         __builtin_ia32_scalefss_mask_round): New intrinsics.
3671         * config/i386/sse.md (vmscalef<mode><round_name>): Renamed to ...
3672         (vmscalef<mode><mask_scalar_name><round_scalar_name>): ... this.
3673         ((match_operand:VF_128 2 "<round_nimm_predicate>"
3674         "<round_constraint>")): Changed to ...
3675         ((match_operand:VF_128 2 "<round_scalar_nimm_predicate>"
3676         "<round_scalar_constraint>")): ... this.
3677         ("vscalef<ssescalarmodesuffix>\t{<round_op3>%2, %1, %0|
3678         %0, %1, %2<round_op3>}"): Changed to ...
3679         ("vscalef<ssescalarmodesuffix>\t{<round_scalar_mask_op3>%2, %1,
3680         %0<mask_scalar_operand3>|%0<mask_scalar_operand3>, %1,
3681         %2<round_scalar_mask_op3>}"): ... this.
3682         * config/i386/subst.md (round_scalar_nimm_predicate): New.
3683
3684 2018-02-12  Olga Makhotina  <olga.makhotina@intel.com>
3685
3686         * config/i386/avx512fintrin.h (_mm_mask_sqrt_round_sd)
3687         (_mm_maskz_sqrt_round_sd, _mm_mask_sqrt_round_ss)
3688         (_mm_maskz_sqrt_round_ss): New intrinsics.
3689         (__builtin_ia32_sqrtsd_round, __builtin_ia32_sqrtss_round): Remove.
3690         (__builtin_ia32_sqrtsd_mask_round)
3691         (__builtin_ia32_sqrtss_mask_round): New builtins.
3692         * config/i386/i386-builtin.def (__builtin_ia32_sqrtsd_round)
3693         (__builtin_ia32_sqrtss_round): Remove.
3694         (__builtin_ia32_sqrtsd_mask_round)
3695         (__builtin_ia32_sqrtss_mask_round): New builtins.
3696         * config/i386/sse.md (vmsqrt<mode>2<round_name>): Renamed to ...
3697         (vmsqrt<mode>2<mask_scalar_name><round_scalar_name>): ... this.
3698         ((match_operand:VF_128 1 "vector_operand"
3699         "xBm,<round_constraint>")): Changed to ...
3700         ((match_operand:VF_128 1 "vector_operand"
3701         "xBm,<round_scalar_constraint>")): ... this.
3702         (vsqrt<ssescalarmodesuffix>\t{<round_op3>%1, %2, %0|
3703         %0, %2, %<iptr>1<round_op3>}): Changed to ...
3704         (vsqrt<ssescalarmodesuffix>\t{<round_scalar_mask_op3>%1, %2,
3705         %0<mask_scalar_operand3>|%0<mask_scalar_operand3>, %2,
3706         %<iptr>1<round_scalar_mask_op3>}): ... this.
3707         ((set_attr "prefix" "<round_prefix>")): Changed to ...
3708         ((set_attr "prefix" "<round_scalar_prefix>")): ... this.
3709
3710 2018-02-11  Steven Munroe  <munroesj@gcc.gnu.org>
3711
3712         PR target/84266
3713         * config/rs6000/mmintrin.h (_mm_cmpeq_pi32 [_ARCH_PWR9]):
3714         Cast vec_cmpeq result to correct type.
3715         * config/rs6000/mmintrin.h (_mm_cmpgt_pi32 [_ARCH_PWR9]):
3716         Cast vec_cmpgt result to correct type.
3717
3718 2018-02-11  Alexandre Oliva  <aoliva@redhat.com>
3719
3720         * final.c (final_scan_insn_1): Renamed from...
3721         (final_scan_insn): ... this.  New wrapper, to recover
3722         seen from the outermost call in recursive ones.
3723         * config/sparc/sparc.c (output_return): Drop seen from call.
3724         (output_sibcall): Likewise.
3725         * config/visium/visium.c (output_branch): Likewise.
3726
3727 2018-02-10  John David Anglin  <danglin@gcc.gnu.org>
3728
3729         * config/pa/pa.c (hppa_profile_hook): Mark SYMBOL_REF for _mcount as
3730         function label.
3731
3732 2018-02-10  Alan Modra  <amodra@gmail.com>
3733
3734         PR target/84300
3735         * config/rs6000/rs6000.md (split_stack_return): Remove (use ..).
3736         Specify LR as an input.
3737
3738 2018-02-10  Jakub Jelinek  <jakub@redhat.com>
3739
3740         PR sanitizer/83987
3741         * omp-low.c (maybe_remove_omp_member_access_dummy_vars,
3742         remove_member_access_dummy_vars): New functions.
3743         (lower_omp_for, lower_omp_taskreg, lower_omp_target,
3744         lower_omp_1, execute_lower_omp): Use them.
3745
3746         PR rtl-optimization/84308
3747         * shrink-wrap.c (spread_components): Release todo vector.
3748
3749 2018-02-09  Vladimir Makarov  <vmakarov@redhat.com>
3750
3751         PR rtl-optimization/57193
3752         * ira-color.c (struct allocno_color_data): Add member
3753         conflict_allocno_hard_prefs.
3754         (update_conflict_allocno_hard_prefs): New.
3755         (bucket_allocno_compare_func): Add a preference based on
3756         conflict_allocno_hard_prefs.
3757         (push_allocno_to_stack): Update conflict_allocno_hard_prefs.
3758         (color_allocnos): Remove a dead code.  Initiate
3759         conflict_allocno_hard_prefs.  Call update_costs_from_prefs.
3760
3761 2018-02-09  Jakub Jelinek  <jakub@redhat.com>
3762
3763         PR target/84226
3764         * config/rs6000/vsx.md (p9_xxbrq_v16qi): Change input operand
3765         constraint from =wa to wa.  Avoid a subreg on the output operand,
3766         instead use a pseudo and subreg it in a move.
3767         (p9_xxbrd_<mode>): Changed to ...
3768         (p9_xxbrd_v2di): ... this insn, without VSX_D iterator.
3769         (p9_xxbrd_v2df): New expander.
3770         (p9_xxbrw_<mode>): Changed to ...
3771         (p9_xxbrw_v4si): ... this insn, without VSX_W iterator.
3772         (p9_xxbrw_v4sf): New expander.
3773
3774 2018-02-09  Sebastian Perta  <sebastian.perta@renesas.com>
3775
3776         * config/rx/rx.md (movsicc): Update expander to be matched by GCC.
3777
3778 2018-02-09  Peter Bergner  <bergner@vnet.ibm.com>
3779
3780         PR target/83926
3781         * config/rs6000/vsx.md (vsx_mul_v2di): Handle generating a 64-bit
3782         multiply in 32-bit mode.
3783         (vsx_div_v2di): Handle generating a 64-bit signed divide in 32-bit mode.
3784         (vsx_udiv_v2di): Handle generating a 64-bit unsigned divide in 32-bit
3785         mode.
3786
3787 2018-02-09  Sebastian Perta  <sebastian.perta@renesas.com>
3788
3789         * config/rx/constraints.md (CALL_OP_SYMBOL_REF): Added new constraint
3790         to allow or block "symbol_ref" depending on the value of TARGET_JSR.
3791         * config/rx/rx.md (call_internal): Use CALL_OP_SYMBOL_REF.
3792         * config/rx/rx.md (call_value_internal): Use CALL_OP_SYMBOL_REF.
3793
3794 2018-02-09  Pierre-Marie de Rodat  <derodat@adacore.com>
3795
3796         PR lto/84213
3797         * dwarf2out.c (is_trivial_indirect_ref): New function.
3798         (dwarf2out_late_global_decl): Do not generate a location
3799         attribute for variables that have a non-trivial DECL_VALUE_EXPR
3800         and that are not defined in the current unit.
3801
3802 2018-02-09  Eric Botcazou  <ebotcazou@adacore.com>
3803
3804         * optabs.c (prepare_cmp_insn): Try harder to emit a direct comparison
3805         instead of a libcall for UNORDERED.
3806
3807 2018-02-09  Tamar Christina  <tamar.christina@arm.com>
3808
3809         PR target/82641
3810         * config/arm/arm-c.c (arm_cpu_builtins): Un-define __ARM_FEATURE_LDREX,
3811         __ARM_ARCH_PROFILE, __ARM_ARCH_ISA_THUMB, __ARM_FP and __ARM_NEON_FP.
3812
3813 2018-02-09  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
3814
3815         PR target/PR84295
3816         * config/s390/s390.c (s390_set_current_function): Invoke
3817         s390_indirect_branch_settings also if fndecl didn't change.
3818
3819 2018-02-09  Alexandre Oliva  <aoliva@redhat.com>
3820
3821         * config/rs6000/rs6000.md (blockage): Set length to zero.
3822
3823 2018-02-09  Eric Botcazou  <ebotcazou@adacore.com>
3824
3825         * expr.c (optimize_bitfield_assignment_op): Remove obsolete assertion.
3826
3827 2018-02-09  Jakub Jelinek  <jakub@redhat.com>
3828
3829         PR sanitizer/84285
3830         * gcc.c (STATIC_LIBASAN_LIBS, STATIC_LIBTSAN_LIBS,
3831         STATIC_LIBLSAN_LIBS, STATIC_LIBUBSAN_LIBS): Handle -static like
3832         -static-lib*san.
3833
3834         PR debug/84252
3835         * var-tracking.c (vt_add_function_parameter): Punt for non-onepart
3836         PARALLEL incoming that failed vt_get_decl_and_offset check.
3837
3838         PR middle-end/84237
3839         * output.h (bss_initializer_p): Add NAMED argument, defaulted to false.
3840         * varasm.c (bss_initializer_p): Add NAMED argument, if true, ignore
3841         TREE_READONLY bit.
3842         (get_variable_section): For decls in named .bss* sections pass true as
3843         second argument to bss_initializer_p.
3844
3845 2018-02-09  Marek Polacek  <polacek@redhat.com>
3846             Jakub Jelinek  <jakub@redhat.com>
3847
3848         PR c++/83659
3849         * fold-const.c (fold_indirect_ref_1): Use VECTOR_TYPE_P macro.
3850         Formatting fixes.  Verify first that tree_fits_poly_int64_p (op01).
3851         Sync some changes from cxx_fold_indirect_ref.
3852
3853 2018-02-09  Alexandre Oliva  <aoliva@redhat.com>
3854
3855         * cfgexpand.c (expand_gimple_basic_block): Handle inline entry
3856         markers.
3857         * dwarf2out.c (dwarf2_debug_hooks): Enable inline_entry hook.
3858         (BLOCK_INLINE_ENTRY_LABEL): New.
3859         (dwarf2out_var_location): Disregard inline entry markers.
3860         (inline_entry_data): New struct.
3861         (inline_entry_data_hasher): New hashtable type.
3862         (inline_entry_data_hasher::hash): New.
3863         (inline_entry_data_hasher::equal): New.
3864         (inline_entry_data_table): New variable.
3865         (add_high_low_attributes): Add DW_AT_entry_pc and
3866         DW_AT_GNU_entry_view attributes if a pending entry is found
3867         in inline_entry_data_table.  Add old entry_pc attribute only
3868         if debug nonbinding markers are disabled.
3869         (gen_inlined_subroutine_die): Set BLOCK_DIE if nonbinding
3870         markers are enabled.
3871         (block_within_block_p, dwarf2out_inline_entry): New.
3872         (dwarf2out_finish): Check that no entries remained in
3873         inline_entry_data_table.
3874         * final.c (reemit_insn_block_notes): Handle inline entry notes.
3875         (final_scan_insn, notice_source_line): Likewise.
3876         (rest_of_clean_state): Skip inline entry markers.
3877         * gimple-pretty-print.c (dump_gimple_debug): Handle inline entry
3878         markers.
3879         * gimple.c (gimple_build_debug_inline_entry): New.
3880         * gimple.h (enum gimple_debug_subcode): Add
3881         GIMPLE_DEBUG_INLINE_ENTRY.
3882         (gimple_build_debug_inline_entry): Declare.
3883         (gimple_debug_inline_entry_p): New.
3884         (gimple_debug_nonbind_marker_p): Adjust.
3885         * insn-notes.def (INLINE_ENTRY): New.
3886         * print-rtl.c (rtx_writer::print_rtx_operand_code_0): Handle
3887         inline entry marker notes.
3888         (print_insn): Likewise.
3889         * rtl.h (NOTE_MARKER_P): Add INLINE_ENTRY support.
3890         (INSN_DEBUG_MARKER_KIND): Likewise.
3891         (GEN_RTX_DEBUG_MARKER_INLINE_ENTRY_PAT): New.
3892         * tree-inline.c (expand_call_inline): Build and insert
3893         debug_inline_entry stmt.
3894         * tree-ssa-live.c (remove_unused_scope_block_p): Preserve
3895         inline entry blocks early, if nonbind markers are enabled.
3896         (dump_scope_block): Dump fragment info.
3897         * var-tracking.c (reemit_marker_as_note): Handle inline entry note.
3898         * doc/gimple.texi (gimple_debug_inline_entry_p): New.
3899         (gimple_build_debug_inline_entry): New.
3900         * doc/invoke.texi (gstatement-frontiers, gno-statement-frontiers):
3901         Enable/disable inline entry points too.
3902         * doc/rtl.texi (NOTE_INSN_INLINE_ENTRY): New.
3903         (DEBUG_INSN): Describe inline entry markers.
3904
3905         * common.opt (gvariable-location-views): New.
3906         (gvariable-location-views=incompat5): New.
3907         * config.in: Rebuilt.
3908         * configure: Rebuilt.
3909         * configure.ac: Test assembler for view support.
3910         * dwarf2asm.c (dw2_asm_output_symname_uleb128): New.
3911         * dwarf2asm.h (dw2_asm_output_symname_uleb128): Declare.
3912         * dwarf2out.c (var_loc_view): New typedef.
3913         (struct dw_loc_list_struct): Add vl_symbol, vbegin, vend.
3914         (dwarf2out_locviews_in_attribute): New.
3915         (dwarf2out_locviews_in_loclist): New.
3916         (dw_val_equal_p): Compare val_view_list of dw_val_class_view_lists.
3917         (enum dw_line_info_opcode): Add LI_adv_address.
3918         (struct dw_line_info_table): Add view.
3919         (RESET_NEXT_VIEW, RESETTING_VIEW_P): New macros.
3920         (DWARF2_ASM_VIEW_DEBUG_INFO): Define default.
3921         (zero_view_p): New variable.
3922         (ZERO_VIEW_P): New macro.
3923         (output_asm_line_debug_info): New.
3924         (struct var_loc_node): Add view.
3925         (add_AT_view_list, AT_loc_list): New.
3926         (add_var_loc_to_decl): Add view param.  Test it against last.
3927         (new_loc_list): Add view params.  Record them.
3928         (AT_loc_list_ptr): Handle loc and view lists.
3929         (view_list_to_loc_list_val_node): New.
3930         (print_dw_val): Handle dw_val_class_view_list.
3931         (size_of_die): Likewise.
3932         (value_format): Likewise.
3933         (loc_list_has_views): New.
3934         (gen_llsym): Set vl_symbol too.
3935         (maybe_gen_llsym, skip_loc_list_entry): New.
3936         (dwarf2out_maybe_output_loclist_view_pair): New.
3937         (output_loc_list): Output view list or entries too.
3938         (output_view_list_offset): New.
3939         (output_die): Handle dw_val_class_view_list.
3940         (output_dwarf_version): New.
3941         (output_compilation_unit_header): Use it.
3942         (output_skeleton_debug_sections): Likewise.
3943         (output_rnglists, output_line_info): Likewise.
3944         (output_pubnames, output_aranges): Update version comments.
3945         (output_one_line_info_table): Output view numbers in asm comments.
3946         (dw_loc_list): Determine current endview, pass it to new_loc_list.
3947         Call maybe_gen_llsym.
3948         (loc_list_from_tree_1): Adjust.
3949         (add_AT_location_description): Create view list attribute if
3950         needed, check it's absent otherwise.
3951         (convert_cfa_to_fb_loc_list): Adjust.
3952         (maybe_emit_file): Call output_asm_line_debug_info for test.
3953         (dwarf2out_var_location): Reset views as needed.  Precompute
3954         add_var_loc_to_decl args.  Call get_attr_min_length only if we have the
3955         attribute.  Set view.
3956         (new_line_info_table): Reset next view.
3957         (set_cur_line_info_table): Call output_asm_line_debug_info for test.
3958         (dwarf2out_source_line): Likewise.  Output view resets and labels to
3959         the assembler, or select appropriate line info opcodes.
3960         (prune_unused_types_walk_attribs): Handle dw_val_class_view_list.
3961         (optimize_string_length): Catch it.  Adjust.
3962         (resolve_addr): Copy vl_symbol along with ll_symbol.  Handle
3963         dw_val_class_view_list, and remove it if no longer needed.
3964         (hash_loc_list): Hash view numbers.
3965         (loc_list_hasher::equal): Compare them.
3966         (optimize_location_lists): Check whether a view list symbol is
3967         needed, and whether the locview attribute is present, and
3968         whether they match.  Remove the locview attribute if no longer
3969         needed.
3970         (index_location_lists): Call skip_loc_list_entry for test.
3971         (dwarf2out_finish): Call output_asm_line_debug_info for test.
3972         Use output_dwarf_version.
3973         * dwarf2out.h (enum dw_val_class): Add dw_val_class_view_list.
3974         (struct dw_val_node): Add val_view_list.
3975         * final.c (SEEN_NEXT_VIEW): New.
3976         (set_next_view_needed): New.
3977         (clear_next_view_needed): New.
3978         (maybe_output_next_view): New.
3979         (final_start_function): Rename to...
3980         (final_start_function_1): ... this.  Take pointer to FIRST,
3981         add SEEN parameter.  Emit param bindings in the initial view.
3982         (final_start_function): Reintroduce SEEN-less interface.
3983         (final): Rename to...
3984         (final_1): ... this.  Take SEEN parameter.  Output final pending
3985         next view at the end.
3986         (final): Reintroduce seen-less interface.
3987         (final_scan_insn): Output pending next view before switching
3988         sections or ending a block.  Mark the next view as needed when
3989         outputting variable locations.  Notify debug backend of section
3990         changes, and of location view changes.
3991         (rest_of_handle_final): Adjust.
3992         * toplev.c (process_options): Autodetect value for debug variable
3993         location views option.  Warn on incompat5 without -gdwarf-5.
3994         * doc/invoke.texi (gvariable-location-views): New.
3995         (gvariable-location-views=incompat5): New.
3996         (gno-variable-location-views): New.
3997
3998 2018-02-08  David Malcolm  <dmalcolm@redhat.com>
3999
4000         PR tree-optimization/84136
4001         * tree-cfg.c (find_taken_edge_computed_goto): Remove assertion
4002         that the result of find_edge is non-NULL.
4003
4004 2018-02-08  Sergey Shalnov  <sergey.shalnov@intel.com>
4005
4006         PR target/83008
4007         * config/i386/x86-tune-costs.h (skylake_cost): Fix cost of
4008         storing integer register in SImode.  Fix cost of 256 and 512
4009         byte aligned SSE register store.
4010
4011 2018-02-08  Sergey Shalnov  <sergey.shalnov@intel.com>
4012
4013         * config/i386/i386.c (ix86_multiplication_cost): Fix
4014         multiplication cost for TARGET_AVX512DQ.
4015
4016 2018-02-08  Marek Polacek  <polacek@redhat.com>
4017
4018         PR tree-optimization/84238
4019         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Verify the result of
4020         get_range_strlen.
4021
4022 2018-02-08  Richard Sandiford  <richard.sandiford@linaro.org>
4023
4024         PR tree-optimization/84265
4025         * tree-vect-stmts.c (vectorizable_store): Don't treat
4026         VMAT_CONTIGUOUS accesses as grouped.
4027         (vectorizable_load): Likewise.
4028
4029 2018-02-08  Richard Sandiford  <richard.sandiford@linaro.org>
4030
4031         PR tree-optimization/81635
4032         * wide-int.h (wi::round_down_for_mask, wi::round_up_for_mask): Declare.
4033         * wide-int.cc (wi::round_down_for_mask, wi::round_up_for_mask)
4034         (test_round_for_mask): New functions.
4035         (wide_int_cc_tests): Call test_round_for_mask.
4036         * tree-vrp.h (intersect_range_with_nonzero_bits): Declare.
4037         * tree-vrp.c (intersect_range_with_nonzero_bits): New function.
4038         * tree-data-ref.c (split_constant_offset_1): Use it to refine the
4039         range returned by get_range_info.
4040
4041 2018-02-08  Jan Hubicka  <hubicka@ucw.cz>
4042
4043         PR ipa/81360
4044         * cgraph.h (symtab_node::output_to_lto_symbol_table_p): Declare
4045         * symtab.c: Include builtins.h
4046         (symtab_node::output_to_lto_symbol_table_p): Move here
4047         from lto-streamer-out.c:output_symbol_p.
4048         * lto-streamer-out.c (write_symbol): Turn early exit to assert.
4049         (output_symbol_p): Move all logic to symtab.c
4050         (produce_symtab): Update.
4051
4052 2018-02-08  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
4053
4054         * config/s390/s390-opts.h (enum indirect_branch): Define.
4055         * config/s390/s390-protos.h (s390_return_addr_from_memory)
4056         (s390_indirect_branch_via_thunk)
4057         (s390_indirect_branch_via_inline_thunk): Add function prototypes.
4058         (enum s390_indirect_branch_type): Define.
4059         * config/s390/s390.c (struct s390_frame_layout, struct
4060         machine_function): Remove.
4061         (indirect_branch_prez10thunk_mask, indirect_branch_z10thunk_mask)
4062         (indirect_branch_table_label_no, indirect_branch_table_name):
4063         Define variables.
4064         (INDIRECT_BRANCH_NUM_OPTIONS): Define macro.
4065         (enum s390_indirect_branch_option): Define.
4066         (s390_return_addr_from_memory): New function.
4067         (s390_handle_string_attribute): New function.
4068         (s390_attribute_table): Add new attribute handler.
4069         (s390_execute_label): Handle UNSPEC_EXECUTE_JUMP patterns.
4070         (s390_indirect_branch_via_thunk): New function.
4071         (s390_indirect_branch_via_inline_thunk): New function.
4072         (s390_function_ok_for_sibcall): When jumping via thunk disallow
4073         sibling call optimization for non z10 compiles.
4074         (s390_emit_call): Force indirect branch target to be a single
4075         register.  Add r1 clobber for non-z10 compiles.
4076         (s390_emit_epilogue): Emit return jump via return_use expander.
4077         (s390_reorg): Handle JUMP_INSNs as execute targets.
4078         (s390_option_override_internal): Perform validity checks for the
4079         new command line options.
4080         (s390_indirect_branch_attrvalue): New function.
4081         (s390_indirect_branch_settings): New function.
4082         (s390_set_current_function): Invoke s390_indirect_branch_settings.
4083         (s390_output_indirect_thunk_function):  New function.
4084         (s390_code_end): Implement target hook.
4085         (s390_case_values_threshold): Implement target hook.
4086         (TARGET_ASM_CODE_END, TARGET_CASE_VALUES_THRESHOLD): Define target
4087         macros.
4088         * config/s390/s390.h (struct s390_frame_layout)
4089         (struct machine_function): Move here from s390.c.
4090         (TARGET_INDIRECT_BRANCH_NOBP_RET)
4091         (TARGET_INDIRECT_BRANCH_NOBP_JUMP)
4092         (TARGET_INDIRECT_BRANCH_NOBP_JUMP_THUNK)
4093         (TARGET_INDIRECT_BRANCH_NOBP_JUMP_INLINE_THUNK)
4094         (TARGET_INDIRECT_BRANCH_NOBP_CALL)
4095         (TARGET_DEFAULT_INDIRECT_BRANCH_TABLE)
4096         (TARGET_INDIRECT_BRANCH_THUNK_NAME_EXRL)
4097         (TARGET_INDIRECT_BRANCH_THUNK_NAME_EX)
4098         (TARGET_INDIRECT_BRANCH_TABLE): Define macros.
4099         * config/s390/s390.md (UNSPEC_EXECUTE_JUMP)
4100         (INDIRECT_BRANCH_THUNK_REGNUM): Define constants.
4101         (mnemonic attribute): Add values which aren't recognized
4102         automatically.
4103         ("*cjump_long", "*icjump_long", "*basr", "*basr_r"): Disable
4104         pattern for branch conversion.  Fix mnemonic attribute.
4105         ("*c<code>", "*sibcall_br", "*sibcall_value_br", "*return"): Emit
4106         indirect branch via thunk if requested.
4107         ("indirect_jump", "<code>"): Expand patterns for branch conversion.
4108         ("*indirect_jump"): Disable for branch conversion using out of
4109         line thunks.
4110         ("indirect_jump_via_thunk<mode>_z10")
4111         ("indirect_jump_via_thunk<mode>")
4112         ("indirect_jump_via_inlinethunk<mode>_z10")
4113         ("indirect_jump_via_inlinethunk<mode>", "*casesi_jump")
4114         ("casesi_jump_via_thunk<mode>_z10", "casesi_jump_via_thunk<mode>")
4115         ("casesi_jump_via_inlinethunk<mode>_z10")
4116         ("casesi_jump_via_inlinethunk<mode>", "*basr_via_thunk<mode>_z10")
4117         ("*basr_via_thunk<mode>", "*basr_r_via_thunk_z10")
4118         ("*basr_r_via_thunk", "return<mode>_prez10"): New pattern.
4119         ("*indirect2_jump"): Disable for branch conversion.
4120         ("casesi_jump"): Turn into expander and expand patterns for branch
4121         conversion.
4122         ("return_use"): New expander.
4123         ("*return"): Emit return via thunk and rename it to ...
4124         ("*return<mode>"): ... this one.
4125         * config/s390/s390.opt: Add new options and and enum for the
4126         option values.
4127
4128 2018-02-08  Richard Sandiford  <richard.sandiford@linaro.org>
4129
4130         * lra-constraints.c (match_reload): Unconditionally use
4131         gen_lowpart_SUBREG, rather than selecting between that
4132         and equivalent gen_rtx_SUBREG code.
4133
4134 2018-02-08  Richard Biener  <rguenther@suse.de>
4135
4136         PR tree-optimization/84233
4137         * tree-ssa-phiprop.c (propagate_with_phi): Use separate
4138         changed flag instead of boguously re-using phi_inserted.
4139
4140 2018-02-08  Martin Jambor  <mjambor@suse.cz>
4141
4142         * hsa-gen.c (get_symbol_for_decl): Set program allocation for
4143         static local variables.
4144
4145 2018-02-08  Richard Biener  <rguenther@suse.de>
4146
4147         PR tree-optimization/84278
4148         * tree-vect-stmts.c (vectorizable_store): When looking for
4149         smaller vector types to perform grouped strided loads/stores
4150         make sure the mode is supported by the target.
4151         (vectorizable_load): Likewise.
4152
4153 2018-02-08  Wilco Dijkstra  <wdijkstr@arm.com>
4154
4155         * config/aarch64/aarch64.c (aarch64_components_for_bb):
4156         Increase LDP/STP opportunities by adding adjacent callee-saves.
4157
4158 2018-02-08  Wilco Dijkstra  <wdijkstr@arm.com>
4159
4160         PR rtl-optimization/84068
4161         PR rtl-optimization/83459
4162         * haifa-sched.c (rank_for_schedule): Fix SCHED_PRESSURE_MODEL sorting.
4163
4164 2018-02-08  Aldy Hernandez  <aldyh@redhat.com>
4165
4166         PR tree-optimization/84224
4167         * gimple-ssa-warn-alloca.c (pass_walloca::execute): Remove assert.
4168         * calls.c (gimple_alloca_call_p): Only return TRUE when we have
4169         non-zero arguments.
4170
4171 2018-02-07  Iain Sandoe  <iain@codesourcery.com>
4172
4173         PR target/84113
4174         * config/rs6000/altivec.md (*restore_world): Remove LR use.
4175         * config/rs6000/predicates.md (restore_world_operation): Adjust op
4176         count, remove one USE.
4177
4178 2018-02-07  Michael Meissner  <meissner@linux.vnet.ibm.com>
4179
4180         * doc/install.texi (Configuration): Document the
4181         --with-long-double-format={ibm,ieee} PowerPC configuration
4182         options.
4183
4184         PR target/84154
4185         * config/rs6000/rs6000.md (fix_trunc<SFDF:mode><QHI:mode>2):
4186         Convert from define_expand to be define_insn_and_split.  Rework
4187         float/double/_Float128 conversions to QI/HI/SImode to work with
4188         both ISA 2.07 (power8) or ISA 3.0 (power9).  Fix regression where
4189         conversions to QI/HImode types did a store and then a load to
4190         truncate the value.  For conversions to VSX registers, don't split
4191         the insn, instead emit the code directly.  Use the code iterator
4192         any_fix to combine signed and unsigned conversions.
4193         (fix<uns>_trunc<SFDF:mode>si2_p8): Likewise.
4194         (fixuns_trunc<SFDF:mode><QHI:mode>2): Likewise.
4195         (fix_trunc<IEEE128:mode><QHI:mode>2): Likewise.
4196         (fix<uns>_trunc<SFDF:mode><QHI:mode>2): Likewise.
4197         (fix_<mode>di2_hw): Likewise.
4198         (fixuns_<mode>di2_hw): Likewise.
4199         (fix_<mode>si2_hw): Likewise.
4200         (fixuns_<mode>si2_hw): Likewise.
4201         (fix<uns>_<IEEE128:mode><SDI:mode>2_hw): Likewise.
4202         (fix<uns>_trunc<IEEE128:mode><QHI:mode>2): Likewise.
4203         (fctiw<u>z_<mode>_smallint): Rename fctiw<u>z_<mode>_smallint to
4204         fix<uns>_trunc<SFDF:mode>si2_p8.
4205         (fix_trunc<SFDF:mode><QHI:mode>2_internal): Delete, no longer
4206         used.
4207         (fixuns_trunc<SFDF:mode><QHI:mode>2_internal): Likewise.
4208         (fix<uns>_<mode>_mem): Likewise.
4209         (fctiw<u>z_<mode>_mem): Likewise.
4210         (fix<uns>_<mode>_mem): Likewise.
4211         (fix<uns>_trunc<SFDF:mode><QHSI:mode>2_mem): On ISA 3.0, prevent
4212         the register allocator from doing a direct move to the GPRs to do
4213         a store, and instead use the ISA 3.0 store byte/half-word from
4214         vector register instruction.  For IEEE 128-bit floating point,
4215         also optimize stores of 32-bit ints.
4216         (fix<uns>_trunc<IEEE128:mode><QHSI:mode>2_mem): Likewise.
4217
4218 2018-02-07  Alan Hayward  <alan.hayward@arm.com>
4219
4220         * genextract.c (push_pathstr_operand): New function to support
4221         [a-zA-Z].
4222         (walk_rtx): Call push_pathstr_operand.
4223         (print_path): Support [a-zA-Z].
4224
4225 2018-02-07  Richard Biener  <rguenther@suse.de>
4226
4227         PR tree-optimization/84037
4228         * tree-vectorizer.h (struct _loop_vec_info): Add ivexpr_map member.
4229         (cse_and_gimplify_to_preheader): Declare.
4230         (vect_get_place_in_interleaving_chain): Likewise.
4231         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
4232         ivexpr_map.
4233         (_loop_vec_info::~_loop_vec_info): Delete it.
4234         (cse_and_gimplify_to_preheader): New function.
4235         * tree-vect-slp.c (vect_get_place_in_interleaving_chain): Export.
4236         * tree-vect-stmts.c (vectorizable_store): CSE base and steps.
4237         (vectorizable_load): Likewise.  For grouped stores always base
4238         the IV on the first element.
4239         * tree-vect-loop-manip.c (vect_loop_versioning): Unshare versioning
4240         condition before gimplifying.
4241
4242 2018-02-07  Jakub Jelinek  <jakub@redhat.com>
4243
4244         * tree-eh.c (operation_could_trap_helper_p): Ignore honor_trapv for
4245         *DIV_EXPR and *MOD_EXPR.
4246
4247 2018-02-07  H.J. Lu  <hongjiu.lu@intel.com>
4248
4249         PR target/84248
4250         * config/i386/i386.c (ix86_option_override_internal): Mask out
4251         the CF_SET bit when checking -fcf-protection.
4252
4253 2018-02-07  Tom de Vries  <tom@codesourcery.com>
4254
4255         PR libgomp/84217
4256         * omp-expand.c (expand_oacc_collapse_init): Ensure diff_type is large
4257         enough.
4258
4259 2018-02-07  Richard Biener  <rguenther@suse.de>
4260
4261         PR tree-optimization/84204
4262         * tree-chrec.c (chrec_fold_plus_1): Remove size limiting in
4263         this place.
4264
4265         PR tree-optimization/84205
4266         * graphite-isl-ast-to-gimple.c (binary_op_to_tree): Also
4267         special-case isl_ast_op_zdiv_r.
4268
4269         PR tree-optimization/84223
4270         * graphite-scop-detection.c (gather_bbs::before_dom_children):
4271         Only add conditions from within the region.
4272         (gather_bbs::after_dom_children): Adjust.
4273
4274 2018-02-07  Georg-Johann Lay  <avr@gjlay.de>
4275
4276         PR target/84209
4277         * config/avr/avr.h (GENERAL_REGNO_P, GENERAL_REG_P): New macros.
4278         * config/avr/avr.md: Only post-reload split REG-REG moves if
4279         either register is GENERAL_REG_P.
4280
4281 2018-02-07  Jakub Jelinek  <jakub@redhat.com>
4282
4283         PR tree-optimization/84235
4284         * tree-ssa-scopedtables.c
4285         (avail_exprs_stack::simplify_binary_operation): Fir MINUS_EXPR, punt
4286         if the subtraction is performed in floating point type where NaNs are
4287         honored.  For *DIV_EXPR, punt for ALL_FRACT_MODE_Ps where we can't
4288         build 1.  Formatting fix.
4289
4290 2018-02-06  Jakub Jelinek  <jakub@redhat.com>
4291
4292         PR target/84146
4293         * config/i386/i386.c (rest_of_insert_endbranch): Only skip
4294         NOTE_INSN_CALL_ARG_LOCATION after a call, not anything else,
4295         and skip it regardless of bb boundaries.  Use CALL_P macro,
4296         don't test INSN_P (insn) together with CALL_P or JUMP_P check
4297         unnecessarily, formatting fix.
4298
4299 2018-02-06  Michael Collison  <michael.collison@arm.com>
4300
4301         * config/arm/thumb2.md:
4302         (*thumb2_mov_negscc): Split only if TARGET_THUMB2 && !arm_restrict_it.
4303         (*thumb_mov_notscc): Ditto.
4304
4305 2018-02-06  Michael Meissner  <meissner@linux.vnet.ibm.com>
4306
4307         PR target/84154
4308         * config/rs6000/rs6000.md (su code attribute): Use "u" for
4309         unsigned_fix, not "s".
4310
4311 2018-02-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
4312
4313         * configure.ac (gcc_fn_eh_frame_ro): New function.
4314         (gcc_cv_as_cfi_directive): Check both 32 and 64-bit assembler for
4315         correct .eh_frame permissions.
4316         * configure: Regenerate.
4317
4318 2018-02-06  Andrew Jenner  <andrew@codeourcery.com>
4319
4320         * doc/invoke.texi: Add section for the PowerPC SPE backend. Remove
4321         irrelevant options.
4322
4323 2018-02-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
4324
4325         * config/rs6000/rs6000.c (rs6000_option_override_internal):
4326         Display warning message for -mno-speculate-indirect-jumps.
4327
4328 2018-02-06  Andrew Jenner  <andrew@codesourcery.com>
4329
4330         * config/powerpcspe/powerpcspe.opt: (msimple-fpu, mfpu) Add
4331         Undocumented.
4332         * config/powerpcspe/sysv4.opt (mbit-align): Likewise.
4333
4334 2018-02-06  Aldy Hernandez  <aldyh@redhat.com>
4335
4336         PR tree-optimization/84225
4337         * tree-eh.c (find_trapping_overflow): Only call
4338         operation_no_trapping_overflow when ANY_INTEGRAL_TYPE_P.
4339
4340 2018-02-06  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
4341
4342         PR target/84145
4343         * config/i386/i386.c: Reimplement the check of possible options
4344         -mibt/-mshstk conbination. Change error messages.
4345         * doc/invoke.texi: Fix a typo: remove extra '='.
4346
4347 2018-02-06  Marek Polacek  <polacek@redhat.com>
4348
4349         PR tree-optimization/84228
4350         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Skip debug statements.
4351
4352 2018-02-06  Tamar Christina  <tamar.christina@arm.com>
4353
4354         PR target/82641
4355         * config/arm/arm.c (arm_print_asm_arch_directives): Record already
4356         emitted arch directives.
4357         * config/arm/arm-c.c (arm_cpu_builtins): Undefine __ARM_ARCH and
4358         __ARM_FEATURE_COPROC before changing architectures.
4359
4360 2018-02-06  Richard Biener  <rguenther@suse.de>
4361
4362         * config/i386/i386.c (print_reg): Fix typo.
4363         (ix86_loop_unroll_adjust): Do not unroll beyond the original nunroll.
4364
4365 2018-02-06  Eric Botcazou  <ebotcazou@adacore.com>
4366
4367         * configure: Regenerate.
4368
4369 2018-02-05  Martin Sebor  <msebor@redhat.com>
4370
4371         PR tree-optimization/83369
4372         * tree-ssa-ccp.c (pass_post_ipa_warn::execute): Use %G to print
4373         inlining context.
4374
4375 2018-02-05  Martin Liska  <mliska@suse.cz>
4376
4377         * doc/invoke.texi: Cherry-pick upstream r323995.
4378
4379 2018-02-05  Richard Sandiford  <richard.sandiford@linaro.org>
4380
4381         * ira.c (ira_init_register_move_cost): Adjust comment.
4382
4383 2018-02-05  Martin Liska  <mliska@suse.cz>
4384
4385         PR gcov-profile/84137
4386         * doc/gcov.texi: Fix typo in documentation.
4387
4388 2018-02-05  Martin Liska  <mliska@suse.cz>
4389
4390         PR gcov-profile/83879
4391         * doc/gcov.texi: Document necessity of --dynamic-list-data when
4392         using dlopen functionality.
4393
4394 2018-02-05  Olga Makhotina  <olga.makhotina@intel.com>
4395
4396         * config/i386/avx512dqintrin.h (_mm_mask_range_sd, _mm_maskz_range_sd,
4397         _mm_mask_range_round_sd, _mm_maskz_range_round_sd, _mm_mask_range_ss,
4398         _mm_maskz_range_ss, _mm_mask_range_round_ss,
4399         _mm_maskz_range_round_ss): New intrinsics.
4400         (__builtin_ia32_rangesd128_round)
4401         (__builtin_ia32_rangess128_round): Remove.
4402         (__builtin_ia32_rangesd128_mask_round,
4403         __builtin_ia32_rangess128_mask_round): New builtins.
4404         * config/i386/i386-builtin.def (__builtin_ia32_rangesd128_round,
4405         __builtin_ia32_rangess128_round): Remove.
4406         (__builtin_ia32_rangesd128_mask_round,
4407         __builtin_ia32_rangess128_mask_round): New builtins.
4408         * config/i386/sse.md (ranges<mode><round_saeonly_name>): Renamed to ...
4409         (ranges<mode><mask_scalar_name><round_saeonly_scalar_name>): ... this.
4410         ((match_operand:VF_128 2 "<round_saeonly_nimm_predicate>"
4411         "<round_saeonly_constraint>")): Changed to ...
4412         ((match_operand:VF_128 2 "<round_saeonly_scalar_nimm_predicate>"
4413         "<round_saeonly_scalar_constraint>")): ... this.
4414         ("vrange<ssescalarmodesuffix>\t{%3, <round_saeonly_op4>%2, %1, %0|
4415         %0, %1, %2<round_saeonly_op4>, %3}"): Changed to ...
4416         ("vrange<ssescalarmodesuffix>\t{%3, <round_saeonly_scalar_mask_op4>%2,
4417         %1, %0<mask_scalar_operand4>|%0<mask_scalar_operand4>, %1,
4418         %2<round_saeonly_scalar_mask_op4>, %3}"): ... this.
4419
4420 2018-02-02  Andrew Jenner  <andrew@codesourcery.com>
4421
4422         * config/powerpcspe/powerpcspe.opt: Add Undocumented to irrelevant
4423         options.
4424         * config/powerpcspe/powerpcspe-tables.opt (rs6000_cpu_opt_value):
4425         Remove all values except native, 8540 and 8548.
4426
4427 2018-02-02  H.J. Lu  <hongjiu.lu@intel.com>
4428
4429         * config/i386/i386.c (ix86_output_function_return): Pass
4430         INVALID_REGNUM, instead of -1, as invalid register number to
4431         indirect_thunk_name and output_indirect_thunk.
4432
4433 2018-02-02  Julia Koval  <julia.koval@intel.com>
4434
4435         * config.gcc: Add -march=icelake.
4436         * config/i386/driver-i386.c (host_detect_local_cpu): Detect icelake.
4437         * config/i386/i386-c.c (ix86_target_macros_internal): Handle icelake.
4438         * config/i386/i386.c (processor_costs): Add m_ICELAKE.
4439         (PTA_ICELAKE, PTA_AVX512VNNI, PTA_GFNI, PTA_VAES, PTA_AVX512VBMI2,
4440         PTA_VPCLMULQDQ, PTA_RDPID, PTA_AVX512BITALG): New.
4441         (processor_target_table): Add icelake.
4442         (ix86_option_override_internal): Handle new PTAs.
4443         (get_builtin_code_for_version): Handle icelake.
4444         (M_INTEL_COREI7_ICELAKE): New.
4445         (fold_builtin_cpu): Handle icelake.
4446         * config/i386/i386.h (TARGET_ICELAKE, PROCESSOR_ICELAKE): New.
4447         * doc/invoke.texi: Add -march=icelake.
4448
4449 2018-02-02  Julia Koval  <julia.koval@intel.com>
4450
4451         * config/i386/i386.c (ix86_option_override_internal): Change flags type
4452         to wide_int_bitmask.
4453         * wide-int-bitmask.h: New.
4454
4455 2018-02-02  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
4456
4457         PR target/84066
4458         * config/i386/i386.md: Replace Pmode with word_mode in
4459         builtin_setjmp_setup and builtin_longjmp to support x32.
4460
4461 2018-02-01  Peter Bergner  <bergner@vnet.ibm.com>
4462
4463         PR target/56010
4464         PR target/83743
4465         * config/rs6000/driver-rs6000.c: #include "diagnostic.h".
4466         #include "opts.h".
4467         (rs6000_supported_cpu_names): New static variable.
4468         (linux_cpu_translation_table): Likewise.
4469         (elf_platform) <cpu>: Define new static variable and use it.
4470         Translate kernel AT_PLATFORM name to canonical name if needed.
4471         Error if platform name is unknown.
4472
4473 2018-02-01  Aldy Hernandez  <aldyh@redhat.com>
4474
4475         PR target/84089
4476         * config/pa/predicates.md (base14_operand): Handle E_VOIDmode.
4477
4478 2018-02-01  Jeff Law  <law@redhat.com>
4479
4480         PR target/84128
4481         * config/i386/i386.c (release_scratch_register_on_entry): Add new
4482         OFFSET and RELEASE_VIA_POP arguments.  Use SP+OFFSET to restore
4483         the scratch if RELEASE_VIA_POP is false.
4484         (ix86_adjust_stack_and_probe_stack_clash): Un-constify SIZE.
4485         If we have to save a temporary register, decrement SIZE appropriately.
4486         Pass new arguments to release_scratch_register_on_entry.
4487         (ix86_adjust_stack_and_probe): Likewise.
4488         (ix86_emit_probe_stack_range): Pass new arguments to
4489         release_scratch_register_on_entry.
4490
4491 2018-02-01  Uros Bizjak  <ubizjak@gmail.com>
4492
4493         PR rtl-optimization/84157
4494         * combine.c (change_zero_ext): Use REG_P predicate in
4495         front of HARD_REGISTER_P predicate.
4496
4497 2018-02-01  Georg-Johann Lay  <avr@gjlay.de>
4498
4499         * config/avr/avr.c (avr_option_override): Move disabling of
4500         -fdelete-null-pointer-checks to...
4501         * common/config/avr/avr-common.c (avr_option_optimization_table):
4502         ...here.
4503
4504 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
4505
4506         PR tree-optimization/81635
4507         * tree-data-ref.c (split_constant_offset_1): For types that
4508         wrap on overflow, try to use range info to prove that wrapping
4509         cannot occur.
4510
4511 2018-02-01  Renlin Li  <renlin.li@arm.com>
4512
4513         PR target/83370
4514         * config/aarch64/aarch64.c (aarch64_class_max_nregs): Handle
4515         TAILCALL_ADDR_REGS.
4516         (aarch64_register_move_cost): Likewise.
4517         * config/aarch64/aarch64.h (reg_class): Rename CALLER_SAVE_REGS to
4518         TAILCALL_ADDR_REGS.
4519         (REG_CLASS_NAMES): Likewise.
4520         (REG_CLASS_CONTENTS): Rename CALLER_SAVE_REGS to
4521         TAILCALL_ADDR_REGS. Remove IP registers.
4522         * config/aarch64/aarch64.md (Ucs): Update register constraint.
4523
4524 2018-02-01  Richard Biener  <rguenther@suse.de>
4525
4526         * domwalk.h (dom_walker::dom_walker): Add additional constructor
4527         for specifying RPO order and allow NULL for that.
4528         * domwalk.c (dom_walker::dom_walker): Likewise.
4529         (dom_walker::walk): Handle NULL RPO order.
4530         * tree-into-ssa.c (rewrite_dom_walker): Do not walk dom children
4531         in RPO order.
4532         (rewrite_update_dom_walker): Likewise.
4533         (mark_def_dom_walker): Likewise.
4534
4535 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
4536
4537         * config/aarch64/aarch64-protos.h (aarch64_split_sve_subreg_move)
4538         (aarch64_maybe_expand_sve_subreg_move): Declare.
4539         * config/aarch64/aarch64.md (UNSPEC_REV_SUBREG): New unspec.
4540         * config/aarch64/predicates.md (aarch64_any_register_operand): New
4541         predicate.
4542         * config/aarch64/aarch64-sve.md (mov<mode>): Optimize subreg moves
4543         that are semantically a reverse operation.
4544         (*aarch64_sve_mov<mode>_subreg_be): New pattern.
4545         * config/aarch64/aarch64.c (aarch64_maybe_expand_sve_subreg_move):
4546         (aarch64_replace_reg_mode, aarch64_split_sve_subreg_move): New
4547         functions.
4548         (aarch64_can_change_mode_class): For big-endian, forbid changes
4549         between two SVE modes if they have different element sizes.
4550
4551 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
4552
4553         * config/aarch64/aarch64.c (aarch64_expand_sve_const_vector): Prefer
4554         the TImode handling for big-endian targets.
4555
4556 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
4557
4558         * config/aarch64/aarch64-sve.md (sve_ld1rq): Replace with...
4559         (*sve_ld1rq<Vesize>): ... this new pattern.  Handle all element sizes,
4560         not just bytes.
4561         * config/aarch64/aarch64.c (aarch64_expand_sve_widened_duplicate):
4562         Remove BSWAP handing for big-endian targets and use the form of
4563         LD1RQ appropariate for the mode.
4564
4565 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
4566
4567         * config/aarch64/aarch64.c (aarch64_simd_valid_immediate): Handle
4568         all CONST_VECTOR_DUPLICATE_P vectors, not just those with a single
4569         duplicated element.
4570
4571 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
4572
4573         PR tearget/83845
4574         * config/aarch64/aarch64.c (aarch64_secondary_reload): Tighten
4575         check for operands that need to go through aarch64_sve_reload_be.
4576
4577 2018-02-01  Jakub Jelinek  <jakub@redhat.com>
4578
4579         PR tree-optimization/81661
4580         PR tree-optimization/84117
4581         * tree-eh.h (rewrite_to_non_trapping_overflow): Declare.
4582         * tree-eh.c: Include gimplify.h.
4583         (find_trapping_overflow, replace_trapping_overflow,
4584         rewrite_to_non_trapping_overflow): New functions.
4585         * tree-vect-loop.c: Include tree-eh.h.
4586         (vect_get_loop_niters): Use rewrite_to_non_trapping_overflow.
4587         * tree-data-ref.c: Include tree-eh.h.
4588         (get_segment_min_max): Use rewrite_to_non_trapping_overflow.
4589
4590 2018-01-31  Uros Bizjak  <ubizjak@gmail.com>
4591
4592         PR rtl-optimization/84123
4593         * combine.c (change_zero_ext): Check if hard register satisfies
4594         can_change_dest_mode before calling gen_lowpart_SUBREG.
4595
4596 2018-01-31  Vladimir Makarov  <vmakarov@redhat.com>
4597
4598         PR target/82444
4599         * ira.c (ira_init_register_move_cost): Remove assert.
4600
4601 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
4602
4603         PR rtl-optimization/84071
4604         * doc/tm.texi.in (WORD_REGISTER_OPERATIONS): Add explicit case.
4605         * doc/tm.texi: Regenerate.
4606
4607 2018-01-31  Richard Biener  <rguenther@suse.de>
4608
4609         PR tree-optimization/84132
4610         * tree-data-ref.c (analyze_miv_subscript): Properly
4611         check whether evolution_function_is_affine_multivariate_p
4612         before calling gcd_of_steps_may_divide_p.
4613
4614 2018-01-31  Julia Koval  <julia.koval@intel.com>
4615
4616         PR target/83618
4617         * config/i386/i386.c (ix86_expand_builtin): Handle IX86_BUILTIN_RDPID.
4618         * config/i386/i386.md (rdpid_rex64) New.
4619         (rdpid): Make 32bit only.
4620
4621 2018-01-29  Aldy Hernandez  <aldyh@redhat.com>
4622
4623         PR lto/84105
4624         * tree-pretty-print.c (dump_generic_node): Handle a TYPE_NAME with
4625         an IDENTIFIER_NODE for FUNCTION_TYPE's.
4626
4627 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
4628
4629         Revert
4630         2018-01-12  Eric Botcazou  <ebotcazou@adacore.com>
4631
4632         * config/sparc/sparc.md (vxworks_load_got): Set the GOT register.
4633
4634 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
4635
4636         PR rtl-optimization/84071
4637         * combine.c (record_dead_and_set_regs_1): Record the source unmodified
4638         for a paradoxical SUBREG on a WORD_REGISTER_OPERATIONS target.
4639
4640 2018-01-31  Claudiu Zissulescu  <claziss@synopsys.com>
4641
4642         * config/arc/arc.c (arc_handle_aux_attribute): New function.
4643         (arc_attribute_table): Add 'aux' attribute.
4644         (arc_in_small_data_p): Consider aux like variables.
4645         (arc_is_aux_reg_p): New function.
4646         (arc_asm_output_aligned_decl_local): Ignore 'aux' like variables.
4647         (arc_get_aux_arg): New function.
4648         (prepare_move_operands): Handle aux-register access.
4649         (arc_handle_aux_attribute): New function.
4650         * doc/extend.texi (ARC Variable attributes): Add subsection.
4651
4652 2018-01-31  Claudiu Zissulescu  <claziss@synopsys.com>
4653
4654         * config/arc/arc-protos.h (arc_is_uncached_mem_p): Function proto.
4655         * config/arc/arc.c (arc_handle_uncached_attribute): New function.
4656         (arc_attribute_table): Add 'uncached' attribute.
4657         (arc_print_operand): Print '.di' flag for uncached memory
4658         accesses.
4659         (arc_in_small_data_p): Do not consider for small data the uncached
4660         types.
4661         (arc_is_uncached_mem_p): New function.
4662         * config/arc/predicates.md (compact_store_memory_operand): Check
4663         for uncached memory accesses.
4664         (nonvol_nonimm_operand): Likewise.
4665         * gcc/doc/extend.texi (ARC Type Attribute): New subsection.
4666
4667 2018-01-31  Jakub Jelinek  <jakub@redhat.com>
4668
4669         PR c/84100
4670         * common.opt (falign-functions=, falign-jumps=, falign-labels=,
4671         falign-loops=): Add Optimization flag.
4672
4673 2018-01-30  Jeff Law  <law@redhat.com>
4674
4675         PR target/84064
4676         * i386.c (ix86_adjust_stack_and_probe_stack_clash): New argument
4677         INT_REGISTERS_SAVED.  Check it prior to calling
4678         get_scratch_register_on_entry.
4679         (ix86_adjust_stack_and_probe): Similarly.
4680         (ix86_emit_probe_stack_range): Similarly.
4681         (ix86_expand_prologue): Corresponding changes.
4682
4683 2018-01-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
4684
4685         PR target/40411
4686         * config/sol2.h (STARTFILE_ARCH_SPEC): Use -std=c*,
4687         -std=iso9899:199409 instead of -pedantic to select values-Xc.o.
4688
4689 2018-01-30  Vladimir Makarov  <vmakarov@redhat.com>
4690
4691         PR target/84112
4692         * lra-constraints.c (curr_insn_transform): Process AND in the
4693         address.
4694
4695 2018-01-30  Jakub Jelinek  <jakub@redhat.com>
4696
4697         PR rtl-optimization/83986
4698         * sched-deps.c (sched_analyze_insn): For frame related insns, add anti
4699         dependence against last_pending_memory_flush in addition to
4700         pending_jump_insns.
4701
4702 2018-01-30  Alexandre Oliva  <aoliva@redhat.com>
4703
4704         PR tree-optimization/81611
4705         * tree-ssa-dom.c (simple_iv_increment_p): Skip intervening
4706         copies.
4707
4708 2018-01-30  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
4709
4710         PR target/83758
4711         * config/rs6000/rs6000.c (rs6000_internal_arg_pointer): Only return
4712         a reg rtx.
4713
4714 2018-01-30  Richard Biener  <rguenther@suse.de>
4715             Jakub Jelinek  <jakub@redhat.com>
4716
4717         PR tree-optimization/84111
4718         * tree-ssa-loop-ivcanon.c (tree_unroll_loops_completely_1): Skip
4719         inner loops added during recursion, as they don't have up-to-date
4720         SSA form.
4721
4722 2018-01-30  Jan Hubicka  <hubicka@ucw.cz>
4723
4724         PR ipa/81360
4725         * ipa-inline.c (can_inline_edge_p): Break out late tests to...
4726         (can_inline_edge_by_limits_p): ... here.
4727         (can_early_inline_edge_p, check_callers,
4728         update_caller_keys, update_callee_keys, recursive_inlining,
4729         add_new_edges_to_heap, speculation_useful_p,
4730         inline_small_functions,
4731         inline_small_functions, flatten_function,
4732         inline_to_all_callers_1): Update.
4733
4734 2018-01-30  Jan Hubicka  <hubicka@ucw.cz>
4735
4736         * profile-count.c (profile_count::combine_with_ipa_count): Handle
4737         zeros correctly.
4738
4739 2018-01-30  Richard Biener  <rguenther@suse.de>
4740
4741         PR tree-optimization/83008
4742         * tree-vect-slp.c (vect_analyze_slp_cost_1): Properly cost
4743         invariant and constant vector uses in stmts when they need
4744         more than one stmt.
4745
4746 2018-01-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
4747
4748         PR bootstrap/84017
4749         * configure.ac (gcc_cv_as_shf_merge): Disable on Solaris 10/x86.
4750         * configure: Regenerate.
4751
4752 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
4753
4754         * config/aarch64/aarch64-sve.md (*vec_extract<mode><Vel>_0): New
4755         pattern.
4756         (*vec_extract<mode><Vel>_v128): Require a nonzero lane number.
4757         Use gen_rtx_REG rather than gen_lowpart.
4758
4759 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
4760
4761         * lra-constraints.c (match_reload): Use subreg_lowpart_offset
4762         rather than 0 when creating partial subregs.
4763
4764 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
4765
4766         * vec-perm-indices.c (vec_perm_indices::series_p): Give examples
4767         of usage.
4768
4769 2018-01-29  Michael Meissner  <meissner@linux.vnet.ibm.com>
4770
4771         PR target/81550
4772         * config/rs6000/rs6000.c (rs6000_setup_reg_addr_masks): If DFmode
4773         and SFmode can go in Altivec registers (-mcpu=power7 for DFmode,
4774         -mcpu=power8 for SFmode) don't set the PRE_INCDEC or PRE_MODIFY
4775         flags.  This restores the settings used before the 2017-07-24.
4776         Turning off pre increment/decrement/modify allows IVOPTS to
4777         optimize DF/SF loops where the index is an int.
4778
4779 2018-01-29  Richard Biener  <rguenther@suse.de>
4780             Kelvin Nilsen  <kelvin@gcc.gnu.org>
4781
4782         PR bootstrap/80867
4783         * tree-vect-stmts.c (vectorizable_call): Don't call
4784         targetm.vectorize_builtin_md_vectorized_function if callee is
4785         NULL.
4786
4787 2018-01-22  Carl Love  <cel@us.ibm.com>
4788
4789         * doc/extend.tex: Fix typo in second arg in
4790         __builtin_bcdadd_{lt|eq|gt|ov} and __builtin_bcdsub_{lt|eq|gt|ov}.
4791
4792 2018-01-29  Richard Biener  <rguenther@suse.de>
4793
4794         PR tree-optimization/84086
4795         * tree-ssanames.c: Include cfgloop.h and tree-scalar-evolution.h.
4796         (flush_ssaname_freelist): When SSA names were released reset
4797         the SCEV hash table.
4798
4799 2018-01-29  Richard Biener  <rguenther@suse.de>
4800
4801         PR tree-optimization/84057
4802         * tree-ssa-loop-ivcanon.c (unloop_loops): Deal with already
4803         removed paths when removing edges.
4804
4805 2018-01-27  H.J. Lu  <hongjiu.lu@intel.com>
4806
4807         * doc/invoke.texi: Replace -mfunction-return==@var{choice} with
4808         -mfunction-return=@var{choice}.
4809
4810 2018-01-27  Bernd Edlinger  <bernd.edlinger@hotmail.de>
4811
4812         PR diagnostic/84034
4813         * diagnostic-show-locus.c (get_line_width_without_trailing_whitespace):
4814         Handle CR like TAB.
4815         (layout::print_source_line): Likewise.
4816         (test_get_line_width_without_trailing_whitespace): Add test cases.
4817
4818 2018-01-27  Jakub Jelinek  <jakub@redhat.com>
4819
4820         PR middle-end/84040
4821         * sched-deps.c (sched_macro_fuse_insns): Return immediately for
4822         debug insns.
4823
4824 2018-01-26  Jim Wilson  <jimw@sifive.com>
4825
4826         * config/riscv/riscv.h (MAX_FIXED_MODE_SIZE): New.
4827
4828         * config/riscv/elf.h (LIB_SPEC): Don't include -lgloss when nosys.specs
4829         specified.
4830
4831 2018-01-26  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
4832
4833         * config/aarch64/aarch64.md: Add peepholes for CMP + SUB -> SUBS
4834         and CMP + SUB-immediate -> SUBS.
4835
4836 2018-01-26  Martin Sebor  <msebor@redhat.com>
4837
4838         PR tree-optimization/83896
4839         * tree-ssa-strlen.c (get_string_len): Rename...
4840         (get_string_cst_length): ...to this.  Return HOST_WIDE_INT.
4841         Avoid assuming length is constant.
4842         (handle_char_store): Use HOST_WIDE_INT for string length.
4843
4844 2018-01-26  Uros Bizjak  <ubizjak@gmail.com>
4845
4846         PR target/81763
4847         * config/i386/i386.md (*andndi3_doubleword): Add earlyclobber
4848         to (=&r,r,rm) alternative. Add (=r,0,rm) and (=r,r,0) alternatives.
4849
4850 2018-01-26  Richard Biener  <rguenther@suse.de>
4851
4852         PR rtl-optimization/84003
4853         * dse.c (record_store): Only record redundant stores when
4854         the earlier store aliases at least all accesses the later one does.
4855
4856 2018-01-26  Jakub Jelinek  <jakub@redhat.com>
4857
4858         PR rtl-optimization/83985
4859         * dce.c (deletable_insn_p): Return false for separate shrink wrapping
4860         REG_CFA_RESTORE insns.
4861         (delete_unmarked_insns): Don't ignore separate shrink wrapping
4862         REG_CFA_RESTORE insns here.
4863
4864         PR c/83989
4865         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Don't
4866         use SSA_NAME_VAR as base for SSA_NAMEs with non-NULL SSA_NAME_VAR.
4867
4868 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
4869
4870         * config/arc/arc-arch.h (arc_tune_attr): Add ARC_TUNE_CORE_3.
4871         * config/arc/arc.c (arc_sched_issue_rate): Use ARC_TUNE_... .
4872         (arc_init): Likewise.
4873         (arc_override_options): Likewise.
4874         (arc_file_start): Choose Tag_ARC_CPU_variation based on arc_tune
4875         value.
4876         (hwloop_fail): Use TARGET_DBNZ when we want to check for dbnz insn
4877         support.
4878         * config/arc/arc.h (TARGET_DBNZ): Define.
4879         * config/arc/arc.md (attr tune): Add core_3, use ARC_TUNE_... to
4880         properly set the tune attribute.
4881         (dbnz): Use TARGET_DBNZ guard.
4882         * config/arc/arc.opt (mtune): Add core3 option.
4883
4884 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
4885
4886         * config/arc/arc.c (arc_delegitimize_address_0): Refactored to
4887         recognize new pic like addresses.
4888         (arc_delegitimize_address): Clean up.
4889
4890 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
4891
4892         * config/arc/arc-arches.def: Option mrf16 valid for all
4893         architectures.
4894         * config/arc/arc-c.def (__ARC_RF16__): New predefined macro.
4895         * config/arc/arc-cpus.def (em_mini): New cpu with rf16 on.
4896         * config/arc/arc-options.def (FL_RF16): Add mrf16 option.
4897         * config/arc/arc-tables.opt: Regenerate.
4898         * config/arc/arc.c (arc_conditional_register_usage): Handle
4899         reduced register file case.
4900         (arc_file_start): Set must have build attributes.
4901         * config/arc/arc.h (MAX_ARC_PARM_REGS): Conditional define using
4902         mrf16 option value.
4903         * config/arc/arc.opt (mrf16): Add new option.
4904         * config/arc/elf.h (ATTRIBUTE_PCS): Define.
4905         * config/arc/genmultilib.awk: Handle new mrf16 option.
4906         * config/arc/linux.h (ATTRIBUTE_PCS): Define.
4907         * config/arc/t-multilib: Regenerate.
4908         * doc/invoke.texi (ARC Options): Document mrf16 option.
4909
4910 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
4911
4912         * config/arc/arc-protos.h: Add arc_is_secure_call_p proto.
4913         * config/arc/arc.c (arc_handle_secure_attribute): New function.
4914         (arc_attribute_table): Add 'secure_call' attribute.
4915         (arc_print_operand): Print secure call operand.
4916         (arc_function_ok_for_sibcall): Don't optimize tail calls when
4917         secure.
4918         (arc_is_secure_call_p): New function.  * config/arc/arc.md
4919         (call_i): Add support for sjli instruction.
4920         (call_value_i): Likewise.
4921         * config/arc/constraints.md (Csc): New constraint.
4922
4923 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
4924             John Eric Martin  <John.Martin@emmicro-us.com>
4925
4926         * config/arc/arc-protos.h: Add arc_is_jli_call_p proto.
4927         * config/arc/arc.c (_arc_jli_section): New struct.
4928         (arc_jli_section): New type.
4929         (rc_jli_sections): New static variable.
4930         (arc_handle_jli_attribute): New function.
4931         (arc_attribute_table): Add jli_always and jli_fixed attribute.
4932         (arc_file_end): New function.
4933         (TARGET_ASM_FILE_END): Define.
4934         (arc_print_operand): Reuse 'S' letter for JLI output instruction.
4935         (arc_add_jli_section): New function.
4936         (jli_call_scan): Likewise.
4937         (arc_reorg): Call jli_call_scan.
4938         (arc_output_addsi): Remove 'S' from printing asm operand.
4939         (arc_is_jli_call_p): New function.
4940         * config/arc/arc.md (movqi_insn): Remove 'S' from printing asm
4941         operand.
4942         (movhi_insn): Likewise.
4943         (movsi_insn): Likewise.
4944         (movsi_set_cc_insn): Likewise.
4945         (loadqi_update): Likewise.
4946         (load_zeroextendqisi_update): Likewise.
4947         (load_signextendqisi_update): Likewise.
4948         (loadhi_update): Likewise.
4949         (load_zeroextendhisi_update): Likewise.
4950         (load_signextendhisi_update): Likewise.
4951         (loadsi_update): Likewise.
4952         (loadsf_update): Likewise.
4953         (movsicc_insn): Likewise.
4954         (bset_insn): Likewise.
4955         (bxor_insn): Likewise.
4956         (bclr_insn): Likewise.
4957         (bmsk_insn): Likewise.
4958         (bicsi3_insn): Likewise.
4959         (cmpsi_cc_c_insn): Likewise.
4960         (movsi_ne): Likewise.
4961         (movsi_cond_exec): Likewise.
4962         (clrsbsi2): Likewise.
4963         (norm_f): Likewise.
4964         (normw): Likewise.
4965         (swap): Likewise.
4966         (divaw): Likewise.
4967         (flag): Likewise.
4968         (sr): Likewise.
4969         (kflag): Likewise.
4970         (ffs): Likewise.
4971         (ffs_f): Likewise.
4972         (fls): Likewise.
4973         (call_i): Remove 'S' asm letter, add jli instruction.
4974         (call_value_i): Likewise.
4975         * config/arc/arc.op (mjli-always): New option.
4976         * config/arc/constraints.md (Cji): New constraint.
4977         * config/arc/fpx.md (addsf3_fpx): Remove 'S' from printing asm
4978         operand.
4979         (subsf3_fpx): Likewise.
4980         (mulsf3_fpx): Likewise.
4981         * config/arc/simdext.md (vendrec_insn): Remove 'S' from printing
4982         asm operand.
4983         * doc/extend.texi (ARC): Document 'jli-always' and 'jli-fixed'
4984         function attrbutes.
4985         * doc/invoke.texi (ARC): Document mjli-always option.
4986
4987 2018-01-26  Sebastian Perta  <sebastian.perta@renesas.com>
4988
4989         * config/rl78/rl78.c (rl78_addsi3_internal): If operand 2 is const
4990         avoid addition with 0 and use incw and decw where possible.
4991
4992 2018-01-26  Richard Biener  <rguenther@suse.de>
4993
4994         PR tree-optimization/81082
4995         * fold-const.c (fold_plusminus_mult_expr): Do not perform the
4996         association if it requires casting to unsigned.
4997         * match.pd ((A * C) +- (B * C) -> (A+-B)): New patterns derived
4998         from fold_plusminus_mult_expr to catch important cases late when
4999         range info is available.
5000
5001 2018-01-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
5002
5003         * config/i386/sol2.h (USE_HIDDEN_LINKONCE): Remove.
5004         * configure.ac (hidden_linkonce): New test.
5005         * configure: Regenerate.
5006         * config.in: Regenerate.
5007
5008 2018-01-26  Julia Koval  <julia.koval@intel.com>
5009
5010         * config/i386/avx512bitalgintrin.h (_mm512_bitshuffle_epi64_mask,
5011         _mm512_mask_bitshuffle_epi64_mask, _mm256_bitshuffle_epi64_mask,
5012         _mm256_mask_bitshuffle_epi64_mask, _mm_bitshuffle_epi64_mask,
5013         _mm_mask_bitshuffle_epi64_mask): Fix type.
5014         * config/i386/i386-builtin-types.def (UHI_FTYPE_V2DI_V2DI_UHI,
5015         USI_FTYPE_V4DI_V4DI_USI): Remove.
5016         * config/i386/i386-builtin.def (__builtin_ia32_vpshufbitqmb512_mask,
5017         __builtin_ia32_vpshufbitqmb256_mask,
5018         __builtin_ia32_vpshufbitqmb128_mask): Fix types.
5019         * config/i386/i386.c (ix86_expand_args_builtin): Remove old types.
5020         * config/i386/sse.md (VI1_AVX512VLBW): Change types.
5021
5022 2018-01-26  Alan Modra  <amodra@gmail.com>
5023
5024         PR target/84033
5025         * config/rs6000/rs6000-p8swap.c (rtx_is_swappable_p): Exclude
5026         UNSPEC_VBPERMQ.  Sort other unspecs.
5027
5028 2018-01-25  David Edelsohn  <dje.gcc@gmail.com>
5029
5030         * doc/invoke.texi (PowerPC Options): Document 'native' cpu type.
5031
5032 2018-01-25  Jan Hubicka  <hubicka@ucw.cz>
5033
5034         PR middle-end/83055
5035         * predict.c (drop_profile): Do not push/pop cfun; update also
5036         node->count.
5037         (handle_missing_profiles): Fix logic looking for zero profiles.
5038
5039 2018-01-25  Jakub Jelinek  <jakub@redhat.com>
5040
5041         PR middle-end/83977
5042         * ipa-fnsummary.c (compute_fn_summary): Clear can_change_signature
5043         on functions with #pragma omp declare simd or functions with simd
5044         attribute.
5045         * omp-simd-clone.c (expand_simd_clones): Revert 2018-01-24 change.
5046         * config/i386/i386.c (ix86_simd_clone_compute_vecsize_and_simdlen):
5047         Remove trailing \n from warning_at calls.
5048
5049 2018-01-25  Tom de Vries  <tom@codesourcery.com>
5050
5051         PR target/84028
5052         * config/nvptx/nvptx.c (nvptx_single): Add exit insn after noreturn call
5053         for neutered workers.
5054
5055 2018-01-24  Joseph Myers  <joseph@codesourcery.com>
5056
5057         PR target/68467
5058         * config/m68k/m68k.c (m68k_promote_function_mode): New function.
5059         (TARGET_PROMOTE_FUNCTION_MODE): New macro.
5060
5061 2018-01-24  Jeff Law  <law@redhat.com>
5062
5063         PR target/83994
5064         * i386.c (get_probe_interval): Move to earlier point.
5065         (ix86_compute_frame_layout): If -fstack-clash-protection and
5066         the frame is larger than the probe interval, then use pushes
5067         to save registers rather than reg->mem moves.
5068         (ix86_expand_prologue): Remove conditional for int_registers_saved
5069         assertion.
5070
5071 2018-01-24  Vladimir Makarov  <vmakarov@redhat.com>
5072
5073         PR target/84014
5074         * ira-build.c (setup_min_max_allocno_live_range_point): Set up
5075         min/max for never referenced object.
5076
5077 2018-01-24  Jakub Jelinek  <jakub@redhat.com>
5078
5079         PR middle-end/83977
5080         * tree.c (free_lang_data_in_decl): Don't clear DECL_ABSTRACT_ORIGIN
5081         here.
5082         * omp-low.c (create_omp_child_function): Remove "omp declare simd"
5083         attributes from DECL_ATTRIBUTES (decl) without affecting
5084         DECL_ATTRIBUTES (current_function_decl).
5085         * omp-simd-clone.c (expand_simd_clones): Ignore DECL_ARTIFICIAL
5086         functions with non-NULL DECL_ABSTRACT_ORIGIN.
5087
5088 2018-01-24  Richard Sandiford  <richard.sandiford@linaro.org>
5089
5090         PR tree-optimization/83979
5091         * fold-const.c (fold_comparison): Use constant_boolean_node
5092         instead of boolean_{true,false}_node.
5093
5094 2018-01-24  Jan Hubicka  <hubicka@ucw.cz>
5095
5096         * ipa-profile.c (ipa_propagate_frequency_1): Fix logic skipping calls
5097         with zero counts.
5098
5099 2018-01-24  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
5100
5101         * config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
5102         Simplify the clause that sets the length attribute.
5103         (*call_value_indirect_nonlocal_sysv<mode>): Likewise.
5104         (*sibcall_nonlocal_sysv<mode>): Clean up code block; simplify the
5105         clause that sets the length attribute.
5106         (*sibcall_value_nonlocal_sysv<mode>): Likewise.
5107
5108 2018-01-24  Tom de Vries  <tom@codesourcery.com>
5109
5110         PR target/83589
5111         * config/nvptx/nvptx.c (WORKAROUND_PTXJIT_BUG_2): Define to 1.
5112         (nvptx_pc_set, nvptx_condjump_label): New function. Copy from jump.c.
5113         Add strict parameter.
5114         (prevent_branch_around_nothing): Insert dummy insn between branch to
5115         label and label with no ptx insn inbetween.
5116         * config/nvptx/nvptx.md (define_insn "fake_nop"): New insn.
5117
5118 2018-01-24  Tom de Vries  <tom@codesourcery.com>
5119
5120         PR target/81352
5121         * config/nvptx/nvptx.c (nvptx_single): Add exit insn after noreturn call
5122         for neutered threads in warp.
5123         * config/nvptx/nvptx.md (define_insn "exit"): New insn.
5124
5125 2018-01-24  Richard Biener  <rguenther@suse.de>
5126
5127         PR tree-optimization/83176
5128         * tree-chrec.c (chrec_fold_plus_1): Handle (signed T){(T) .. }
5129         operands.
5130
5131 2018-01-24  Richard Biener  <rguenther@suse.de>
5132
5133         PR tree-optimization/82819
5134         * graphite-isl-ast-to-gimple.c (binary_op_to_tree): Avoid
5135         code generating pluses that are no-ops in the target precision.
5136
5137 2018-01-24  Richard Biener  <rguenther@suse.de>
5138
5139         PR middle-end/84000
5140         * tree-cfg.c (replace_loop_annotate): Handle annot_expr_parallel_kind.
5141
5142 2018-01-23  Jan Hubicka  <hubicka@ucw.cz>
5143
5144         * cfgcleanup.c (try_crossjump_to_edge): Use combine_with_count
5145         to merge probabilities.
5146         * predict.c (probably_never_executed): Also mark as cold functions
5147         with global 0 profile and guessed local profile.
5148         * profile-count.c (profile_probability::combine_with_count): New
5149         member function.
5150         * profile-count.h (profile_probability::operator*,
5151         profile_probability::operator*=, profile_probability::operator/,
5152         profile_probability::operator/=): Reduce precision to adjusted
5153         and set value to guessed on contradictory divisions.
5154         (profile_probability::combine_with_freq): Remove.
5155         (profile_probability::combine_wiht_count): Declare.
5156         (profile_count::force_nonzero):: Set to adjusted.
5157         (profile_count::probability_in):: Set quality to adjusted.
5158         * tree-ssa-tail-merge.c (replace_block_by): Use
5159         combine_with_count.
5160
5161 2018-01-23  Andrew Waterman  <andrew@sifive.com>
5162             Jim Wilson  <jimw@sifive.com>
5163
5164         * config/riscv/riscv.c (riscv_stack_boundary): New.
5165         (riscv_option_override): Set riscv_stack_boundary.  Handle
5166         riscv_preferred_stack_boundary_arg.
5167         * config/riscv/riscv.h (MIN_STACK_BOUNDARY, ABI_STACK_BOUNDARY): New.
5168         (BIGGEST_ALIGNMENT): Set to STACK_BOUNDARY.
5169         (STACK_BOUNDARY): Set to riscv_stack_boundary.
5170         (RISCV_STACK_ALIGN): Use STACK_BOUNDARY.
5171         * config/riscv/riscv.opt (mpreferred-stack-boundary): New.
5172         * doc/invoke.tex (RISC-V Options): Add -mpreferred-stack-boundary.
5173
5174 2018-01-23  H.J. Lu  <hongjiu.lu@intel.com>
5175
5176         PR target/83905
5177         * config/i386/i386.c (ix86_expand_prologue): Use cost reference
5178         of struct ix86_frame.
5179         (ix86_expand_epilogue): Likewise.  Add a local variable for
5180         the reg_save_offset field in struct ix86_frame.
5181
5182 2018-01-23  Bin Cheng  <bin.cheng@arm.com>
5183
5184         PR tree-optimization/82604
5185         * tree-loop-distribution.c (enum partition_kind): New enum item
5186         PKIND_PARTIAL_MEMSET.
5187         (partition_builtin_p): Support above new enum item.
5188         (generate_code_for_partition): Ditto.
5189         (compute_access_range): Differentiate cases that equality can be
5190         proven at all loops, the innermost loops or no loops.
5191         (classify_builtin_st, classify_builtin_ldst): Adjust call to above
5192         function.  Set PKIND_PARTIAL_MEMSET for partition appropriately.
5193         (finalize_partitions, distribute_loop): Don't fuse partition of
5194         PKIND_PARTIAL_MEMSET kind when distributing 3-level loop nest.
5195         (prepare_perfect_loop_nest): Distribute 3-level loop nest only if
5196         parloop is enabled.
5197
5198 2018-01-23  Martin Liska  <mliska@suse.cz>
5199
5200         * predict.def (PRED_INDIR_CALL): Set probability to PROB_EVEN in
5201         order to ignore the predictor.
5202         (PRED_POLYMORPHIC_CALL): Likewise.
5203         (PRED_RECURSIVE_CALL): Likewise.
5204
5205 2018-01-23  Martin Liska  <mliska@suse.cz>
5206
5207         * tree-profile.c (tree_profiling): Print function header to
5208         aware reader which function we are working on.
5209         * value-prof.c (gimple_find_values_to_profile): Do not print
5210         not interesting value histograms.
5211
5212 2018-01-23  Martin Liska  <mliska@suse.cz>
5213
5214         * profile-count.h (enum profile_quality): Add
5215         profile_uninitialized as the first value. Do not number values
5216         as they are zero based.
5217         (profile_count::verify): Update sanity check.
5218         (profile_probability::verify): Likewise.
5219
5220 2018-01-23  Nathan Sidwell  <nathan@acm.org>
5221
5222         * doc/invoke.texi (ffor-scope): Deprecate.
5223
5224 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
5225
5226         PR tree-optimization/83510
5227         * domwalk.c (set_all_edges_as_executable): New function.
5228         (dom_walker::dom_walker): Convert bool param
5229         "skip_unreachable_blocks" to enum reachability.  Move setup of
5230         edge flags to set_all_edges_as_executable and only do it when
5231         reachability is REACHABLE_BLOCKS.
5232         * domwalk.h (enum dom_walker::reachability): New enum.
5233         (dom_walker::dom_walker): Convert bool param
5234         "skip_unreachable_blocks" to enum reachability.
5235         (set_all_edges_as_executable): New decl.
5236         * graphite-scop-detection.c  (gather_bbs::gather_bbs): Convert
5237         from false for "skip_unreachable_blocks" to ALL_BLOCKS for
5238         "reachability".
5239         * tree-ssa-dom.c (dom_opt_dom_walker::dom_opt_dom_walker): Likewise,
5240         but converting true to REACHABLE_BLOCKS.
5241         * tree-ssa-sccvn.c (sccvn_dom_walker::sccvn_dom_walker): Likewise.
5242         * tree-vrp.c
5243         (check_array_bounds_dom_walker::check_array_bounds_dom_walker):
5244         Likewise, but converting it to REACHABLE_BLOCKS_PRESERVING_FLAGS.
5245         (vrp_dom_walker::vrp_dom_walker): Likewise, but converting it to
5246         REACHABLE_BLOCKS.
5247         (vrp_prop::vrp_finalize): Call set_all_edges_as_executable
5248         if check_all_array_refs will be called.
5249
5250 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
5251
5252         * tree.c (selftest::test_location_wrappers): Add more test
5253         coverage.
5254
5255 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
5256
5257         * sbitmap.c (selftest::test_set_range): Fix memory leaks.
5258         (selftest::test_bit_in_range): Likewise.
5259
5260 2018-01-23  Richard Sandiford  <richard.sandiford@linaro.org>
5261
5262         PR testsuite/83888
5263         * doc/sourcebuild.texi (vect_float): Say that the selector
5264         only describes the situation when -funsafe-math-optimizations is on.
5265         (vect_float_strict): Document.
5266
5267 2018-01-23  Richard Sandiford  <richard.sandiford@linaro.org>
5268
5269         PR tree-optimization/83965
5270         * tree-vect-patterns.c (vect_reassociating_reduction_p): New function.
5271         (vect_recog_dot_prod_pattern, vect_recog_sad_pattern): Use it
5272         instead of checking only for a reduction.
5273         (vect_recog_widen_sum_pattern): Likewise.
5274
5275 2018-01-23  Jan Hubicka  <hubicka@ucw.cz>
5276
5277         * predict.c (probably_never_executed): Only use precise profile info.
5278         (compute_function_frequency): Skip after inlining hack since we now
5279         have quality checking.
5280
5281 2018-01-23  Jan Hubicka  <hubicka@ucw.cz>
5282
5283         * profile-count.h (profile_probability::very_unlikely,
5284         profile_probability::unlikely, profile_probability::even): Set
5285         precision to guessed.
5286
5287 2018-01-23  Richard Biener  <rguenther@suse.de>
5288
5289         PR tree-optimization/83963
5290         * graphite-scop-detection.c (scop_detection::harmful_loop_in_region):
5291         Properly terminate dominator walk when crossing the exit edge not
5292         when visiting its source block.
5293
5294 2018-01-23  Jakub Jelinek  <jakub@redhat.com>
5295
5296         PR c++/83918
5297         * tree.c (maybe_wrap_with_location): Use NON_LVALUE_EXPR rather than
5298         VIEW_CONVERT_EXPR to wrap CONST_DECLs.
5299
5300 2018-01-22  Jakub Jelinek  <jakub@redhat.com>
5301
5302         PR tree-optimization/83957
5303         * omp-expand.c (expand_omp_for_generic): Ignore virtual PHIs.  Remove
5304         semicolon after for body surrounded by braces.
5305
5306         PR tree-optimization/83081
5307         * profile-count.h (profile_probability::split): New method.
5308         * dojump.c (do_jump_1) <case TRUTH_ANDIF_EXPR, case TRUTH_ORIF_EXPR>:
5309         Use profile_probability::split.
5310         (do_compare_rtx_and_jump): Fix adjustment of probabilities
5311         when splitting a single conditional jump into 2.
5312
5313 2018-01-22  David Malcolm  <dmalcolm@redhat.com>
5314
5315         PR tree-optimization/69452
5316         * tree-ssa-loop-im.c (class move_computations_dom_walker): Remove
5317         decl.
5318
5319 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
5320
5321         * config/rl78/rl78-expand.md (bswaphi2): New define_expand.
5322         * config/rl78/rl78-virt.md (*bswaphi2_virt): New define_insn.
5323         * config/rl78/rl78-real.md (*bswaphi2_real): New define_insn.
5324
5325 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
5326
5327         * config/rl78/rl78-protos.h (rl78_split_movdi): New function declaration.
5328         * config/rl78/rl78.md (movdi): New define_expand.
5329         * config/rl78/rl78.c (rl78_split_movdi): New function.
5330
5331 2018-01-22  Michael Meissner  <meissner@linux.vnet.ibm.com>
5332
5333         PR target/83862
5334         * config/rs6000/rs6000-protos.h (rs6000_split_signbit): Delete,
5335         no longer used.
5336         * config/rs6000/rs6000.c (rs6000_split_signbit): Likewise.
5337         * config/rs6000/rs6000.md (signbit<mode>2): Change code for IEEE
5338         128-bit to produce an UNSPEC move to get the double word with the
5339         signbit and then a shift directly to do signbit.
5340         (signbit<mode>2_dm): Replace old IEEE 128-bit signbit
5341         implementation with a new version that just does either a direct
5342         move or a regular move.  Move memory interface to separate insns.
5343         Move insns so they are next to the expander.
5344         (signbit<mode>2_dm_mem_be): New combiner insns to combine load
5345         with signbit move.  Split big and little endian case.
5346         (signbit<mode>2_dm_mem_le): Likewise.
5347         (signbit<mode>2_dm_<su>ext): Delete, no longer used.
5348         (signbit<mode>2_dm2): Likewise.
5349
5350 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
5351
5352         * config/rl78/rl78.md (anddi3): New define_expand.
5353
5354 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
5355
5356         * config/rl78/rl78.md (umindi3): New define_expand.
5357
5358 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
5359
5360         * config/rl78/rl78.md (smindi3): New define_expand.
5361
5362 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
5363
5364         * config/rl78/rl78.md (smaxdi3): New define_expand.
5365
5366 2018-01-22  Carl Love  <cel@us.ibm.com>
5367
5368         * config/rs6000/rs6000-builtin.def (ST_ELEMREV_V1TI, LD_ELEMREV_V1TI,
5369         LVX_V1TI): Add macro expansion.
5370         * config/rs6000/rs6000-c.c (altivec_builtin_types): Add argument
5371         definitions for VSX_BUILTIN_VEC_XST_BE, VSX_BUILTIN_VEC_ST,
5372         VSX_BUILTIN_VEC_XL, LD_ELEMREV_V1TI builtins.
5373         * config/rs6000/rs6000-p8swap.c (insn_is_swappable_p);
5374         Change check to determine if the instruction is a byte reversing
5375         entry.  Fix typo in comment.
5376         * config/rs6000/rs6000.c (altivec_expand_builtin): Add case entry
5377         for VSX_BUILTIN_ST_ELEMREV_V1TI and VSX_BUILTIN_LD_ELEMREV_V1TI.
5378         Add def_builtin calls for new builtins.
5379         * config/rs6000/vsx.md (vsx_st_elemrev_v1ti, vsx_ld_elemrev_v1ti):
5380         Add define_insn expansion.
5381
5382 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
5383
5384         * config/rl78/rl78.md (umaxdi3): New define_expand.
5385
5386 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
5387
5388         * config/rl78/rl78.c (rl78_note_reg_set): Fixed dead reg check
5389         for non-QImode registers.
5390
5391 2018-01-22  Richard Biener  <rguenther@suse.de>
5392
5393         PR tree-optimization/83963
5394         * graphite-scop-detection.c (scop_detection::get_sese): Delay
5395         including the loop exit block.
5396         (scop_detection::merge_sese): Likewise.
5397         (scop_detection::add_scop): Do it here instead.
5398
5399 2018-01-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
5400
5401         * doc/sourcebuild.texi (arm_softfloat): Document.
5402
5403 2018-01-21  John David Anglin  <danglin@gcc.gnu.org>
5404
5405         PR gcc/77734
5406         * config/pa/pa.c (pa_function_ok_for_sibcall): Use
5407         targetm.binds_local_p instead of TREE_PUBLIC to check local binding.
5408         Move TARGET_PORTABLE_RUNTIME check after TARGET_64BIT check.
5409
5410 2018-01-21  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
5411             David Edelsohn  <dje.gcc@gmail.com>
5412
5413         PR target/83946
5414         * config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
5415         Change "crset eq" to "crset 2".
5416         (*call_value_indirect_nonlocal_sysv<mode>): Likewise.
5417         (*call_indirect_aix<mode>_nospec): Likewise.
5418         (*call_value_indirect_aix<mode>_nospec): Likewise.
5419         (*call_indirect_elfv2<mode>_nospec): Likewise.
5420         (*call_value_indirect_elfv2<mode>_nospec): Likewise.
5421         (*sibcall_nonlocal_sysv<mode>): Change "crset eq" to "crset 2";
5422         change assembly output from . to $.
5423         (*sibcall_value_nonlocal_sysv<mode>): Likewise.
5424         (indirect_jump<mode>_nospec): Change assembly output from . to $.
5425         (*tablejump<mode>_internal1_nospec): Likewise.
5426
5427 2018-01-21  Oleg Endo  <olegendo@gcc.gnu.org>
5428
5429         PR target/80870
5430         * config/sh/sh_optimize_sett_clrt.cc:
5431         Use INCLUDE_ALGORITHM and INCLUDE_VECTOR instead of direct includes.
5432
5433 2018-01-20  Richard Sandiford  <richard.sandiford@linaro.org>
5434
5435         PR tree-optimization/83940
5436         * tree-vect-stmts.c (vect_truncate_gather_scatter_offset): Set
5437         offset_dt to vect_constant_def rather than vect_unknown_def_type.
5438         (vect_check_load_store_mask): Add a mask_dt_out parameter and
5439         use it to pass back the definition type.
5440         (vect_check_store_rhs): Likewise rhs_dt_out.
5441         (vect_build_gather_load_calls): Add a mask_dt argument and use
5442         it instead of a call to vect_is_simple_use.
5443         (vectorizable_store): Update calls to vect_check_load_store_mask
5444         and vect_check_store_rhs.  Use the dt returned by the latter instead
5445         of scatter_src_dt.  Use the cached mask_dt and gs_info.offset_dt
5446         instead of calls to vect_is_simple_use.  Pass the scalar rather
5447         than the vector operand to vect_is_simple_use when handling
5448         second and subsequent copies of an rhs value.
5449         (vectorizable_load): Update calls to vect_check_load_store_mask
5450         and vect_build_gather_load_calls.  Use the cached mask_dt and
5451         gs_info.offset_dt instead of calls to vect_is_simple_use.
5452
5453 2018-01-20  Jakub Jelinek  <jakub@redhat.com>
5454
5455         PR middle-end/83945
5456         * tree-emutls.c: Include gimplify.h.
5457         (lower_emutls_2): New function.
5458         (lower_emutls_1): If ADDR_EXPR is a gimple invariant and walk_tree
5459         with lower_emutls_2 callback finds some TLS decl in it, unshare_expr
5460         it before further processing.
5461
5462         PR target/83930
5463         * simplify-rtx.c (simplify_binary_operation_1) <case UMOD>: Use
5464         UINTVAL (trueop1) instead of INTVAL (op1).
5465
5466 2018-01-19  Jakub Jelinek  <jakub@redhat.com>
5467
5468         PR debug/81570
5469         PR debug/83728
5470         * dwarf2cfi.c (DEFAULT_INCOMING_FRAME_SP_OFFSET): Define to
5471         INCOMING_FRAME_SP_OFFSET if not defined.
5472         (scan_trace): Add ENTRY argument.  If true and
5473         DEFAULT_INCOMING_FRAME_SP_OFFSET != INCOMING_FRAME_SP_OFFSET,
5474         emit a note to adjust the CFA offset.
5475         (create_cfi_notes): Adjust scan_trace callers.
5476         (create_cie_data): Use DEFAULT_INCOMING_FRAME_SP_OFFSET rather than
5477         INCOMING_FRAME_SP_OFFSET in the CIE.
5478         * config/i386/i386.h (DEFAULT_INCOMING_FRAME_SP_OFFSET): Define.
5479         * config/stormy16/stormy16.h (DEFAULT_INCOMING_FRAME_SP_OFFSET):
5480         Likewise.
5481         * doc/tm.texi.in (DEFAULT_INCOMING_FRAME_SP_OFFSET): Document.
5482         * doc/tm.texi: Regenerated.
5483
5484 2018-01-19  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
5485
5486         PR rtl-optimization/83147
5487         * lra-constraints.c (remove_inheritance_pseudos): Use
5488         lra_substitute_pseudo_within_insn.
5489
5490 2018-01-19  Tom de Vries  <tom@codesourcery.com>
5491             Cesar Philippidis  <cesar@codesourcery.com>
5492
5493         PR target/83920
5494         * config/nvptx/nvptx.c (nvptx_single): Fix jit workaround.
5495
5496 2018-01-19  Cesar Philippidis  <cesar@codesourcery.com>
5497
5498         PR target/83790
5499         * config/nvptx/nvptx.c (output_init_frag): Don't use generic address
5500         spaces for function labels.
5501
5502 2018-01-19  Martin Liska  <mliska@suse.cz>
5503
5504         * predict.def (PRED_LOOP_EXIT): Change from 85 to 89.
5505         (PRED_LOOP_EXIT_WITH_RECURSION): Change from 72 to 78.
5506         (PRED_LOOP_EXTRA_EXIT): Change from 83 to 67.
5507         (PRED_OPCODE_POSITIVE): Change from 64 to 59.
5508         (PRED_TREE_OPCODE_POSITIVE): Change from 64 to 59.
5509         (PRED_CONST_RETURN): Change from 69 to 65.
5510         (PRED_NULL_RETURN): Change from 91 to 71.
5511         (PRED_LOOP_IV_COMPARE_GUESS): Change from 98 to 64.
5512         (PRED_LOOP_GUARD): Change from 66 to 73.
5513
5514 2018-01-19  Martin Liska  <mliska@suse.cz>
5515
5516         * predict.c (predict_insn_def): Add new assert.
5517         (struct branch_predictor): Change type to signed integer.
5518         (test_prediction_value_range): Amend test to cover
5519         PROB_UNINITIALIZED.
5520         * predict.def (PRED_LOOP_ITERATIONS): Use the new constant.
5521         (PRED_LOOP_ITERATIONS_GUESSED): Likewise.
5522         (PRED_LOOP_ITERATIONS_MAX): Likewise.
5523         (PRED_LOOP_IV_COMPARE): Likewise.
5524         * predict.h (PROB_UNINITIALIZED): Define new constant.
5525
5526 2018-01-19  Martin Liska  <mliska@suse.cz>
5527
5528         * predict.c (dump_prediction): Add new format for
5529         analyze_brprob.py script which is enabled with -details
5530         suboption.
5531         * profile-count.h (precise_p): New function.
5532
5533 2018-01-19  Richard Sandiford  <richard.sandiford@linaro.org>
5534
5535         PR tree-optimization/83922
5536         * tree-vect-loop.c (vect_verify_full_masking): Return false if
5537         there are no statements that need masking.
5538         (vect_active_double_reduction_p): New function.
5539         (vect_analyze_loop_operations): Use it when handling phis that
5540         are not in the loop header.
5541
5542 2018-01-19  Richard Sandiford  <richard.sandiford@linaro.org>
5543
5544         PR tree-optimization/83914
5545         * tree-vect-loop.c (vectorizable_induction): Don't convert
5546         init_expr or apply the peeling adjustment for inductions
5547         that are nested within the vectorized loop.
5548
5549 2018-01-19  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
5550
5551         * config/arm/thumb2.md (*thumb2_negsi2_short): Use RSB mnemonic
5552         instead of NEG.
5553
5554 2018-01-18  Jakub Jelinek  <jakub@redhat.com>
5555
5556         PR sanitizer/81715
5557         PR testsuite/83882
5558         * function.h (gimplify_parameters): Add gimple_seq * argument.
5559         * function.c: Include gimple.h and options.h.
5560         (gimplify_parameters): Add cleanup argument, add CLOBBER stmts
5561         for the added local temporaries if needed.
5562         * gimplify.c (gimplify_body): Adjust gimplify_parameters caller,
5563         if there are any parameter cleanups, wrap whole body into a
5564         try/finally with the cleanups.
5565
5566 2018-01-18  Wilco Dijkstra  <wdijkstr@arm.com>
5567
5568         PR target/82964
5569         * config/aarch64/aarch64.c (aarch64_legitimate_constant_p):
5570         Use GET_MODE_CLASS for scalar floating point.
5571
5572 2018-01-18  Jan Hubicka  <hubicka@ucw.cz>
5573
5574         PR ipa/82256
5575         patch by PaX Team
5576         * cgraphclones.c (cgraph_node::create_version_clone_with_body):
5577         Fix call of call_cgraph_insertion_hooks.
5578
5579 2018-01-18  Martin Sebor  <msebor@redhat.com>
5580
5581         * doc/invoke.texi (-Wclass-memaccess): Tweak text.
5582
5583 2018-01-18  Jan Hubicka  <hubicka@ucw.cz>
5584
5585         PR ipa/83619
5586         * cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Update edge
5587         frequencies.
5588
5589 2018-01-18  Boris Kolpackov  <boris@codesynthesis.com>
5590
5591         PR other/70268
5592         * common.opt: (-ffile-prefix-map): New option.
5593         * opts.c (common_handle_option): Defer it.
5594         * opts-global.c (handle_common_deferred_options): Handle it.
5595         * debug.h (remap_debug_filename, add_debug_prefix_map): Move to...
5596         * file-prefix-map.h: New file.
5597         (remap_debug_filename, add_debug_prefix_map): ...here.
5598         (add_macro_prefix_map, add_file_prefix_map, remap_macro_filename): New.
5599         * final.c (debug_prefix_map, add_debug_prefix_map
5600         remap_debug_filename): Move to...
5601         * file-prefix-map.c: New file.
5602         (file_prefix_map, add_prefix_map, remap_filename) ...here and rename,
5603         generalize, get rid of alloca(), use strrchr() instead of strchr().
5604         (add_macro_prefix_map, add_debug_prefix_map, add_file_prefix_map):
5605         Implement in terms of add_prefix_map().
5606         (remap_macro_filename, remap_debug_filename): Implement in term of
5607         remap_filename().
5608         * Makefile.in (OBJS, PLUGIN_HEADERS): Add new files.
5609         * builtins.c (fold_builtin_FILE): Call remap_macro_filename().
5610         * dbxout.c: Include file-prefix-map.h.
5611         * varasm.c: Likewise.
5612         * vmsdbgout.c: Likewise.
5613         * xcoffout.c: Likewise.
5614         * dwarf2out.c: Likewise plus omit new options from DW_AT_producer.
5615         * doc/cppopts.texi (-fmacro-prefix-map): Document.
5616         * doc/invoke.texi (-ffile-prefix-map): Document.
5617         (-fdebug-prefix-map): Update description.
5618
5619 2018-01-18  Martin Liska  <mliska@suse.cz>
5620
5621         * config/i386/i386.c (indirect_thunk_name): Document that also
5622         lfence is emitted.
5623         (output_indirect_thunk): Document why both instructions
5624         (pause and lfence) are generated.
5625
5626 2018-01-18  Richard Biener  <rguenther@suse.de>
5627
5628         PR tree-optimization/83887
5629         * graphite-scop-detection.c
5630         (scop_detection::get_nearest_dom_with_single_entry): Remove.
5631         (scop_detection::get_nearest_pdom_with_single_exit): Likewise.
5632         (scop_detection::merge_sese): Re-implement with a flood-fill
5633         algorithm that properly finds a SESE region if it exists.
5634
5635 2018-01-18  Jakub Jelinek  <jakub@redhat.com>
5636
5637         PR c/61240
5638         * match.pd ((P + A) - P, P - (P + A), (P + A) - (P + B)): For
5639         pointer_diff optimizations use view_convert instead of convert.
5640
5641 2018-01-17  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
5642
5643         * config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
5644         Generate different code for -mno-speculate-indirect-jumps.
5645         (*call_value_indirect_nonlocal_sysv<mode>): Likewise.
5646         (*call_indirect_aix<mode>): Disable for
5647         -mno-speculate-indirect-jumps.
5648         (*call_indirect_aix<mode>_nospec): New define_insn.
5649         (*call_value_indirect_aix<mode>): Disable for
5650         -mno-speculate-indirect-jumps.
5651         (*call_value_indirect_aix<mode>_nospec): New define_insn.
5652         (*sibcall_nonlocal_sysv<mode>): Generate different code for
5653         -mno-speculate-indirect-jumps.
5654         (*sibcall_value_nonlocal_sysv<mode>): Likewise.
5655
5656 2018-01-17  Michael Meissner  <meissner@linux.vnet.ibm.com>
5657
5658         * config/rs6000/rs6000.c (rs6000_emit_move): If we load or store a
5659         long double type, set the flags for noting the default long double
5660         type, even if we don't pass or return a long double type.
5661
5662 2018-01-17  Jan Hubicka  <hubicka@ucw.cz>
5663
5664         PR ipa/83051
5665         * ipa-inline.c (flatten_function): Do not overwrite final inlining
5666         failure.
5667
5668 2018-01-17  Will Schmidt  <will_schmidt@vnet.ibm.com>
5669
5670         * config/rs6000/rs6000.c (rs6000_gimple_builtin): Add gimple folding
5671         support for merge[hl].
5672         (fold_mergehl_helper): New helper function.
5673         (tree-vector-builder.h): New #include for tree_vector_builder usage.
5674         * config/rs6000/altivec.md (altivec_vmrghw_direct): Add xxmrghw insn.
5675         (altivec_vmrglw_direct): Add xxmrglw insn.
5676
5677 2018-01-17  Andrew Waterman  <andrew@sifive.com>
5678
5679         * config/riscv/riscv.c (riscv_conditional_register_usage): If
5680         UNITS_PER_FP_ARG is 0, set call_used_regs to 1 for all FP regs.
5681
5682 2018-01-17  David Malcolm  <dmalcolm@redhat.com>
5683
5684         PR lto/83121
5685         * ipa-devirt.c (add_type_duplicate): When comparing memory layout,
5686         call the lto_location_cache before reading the
5687         DECL_SOURCE_LOCATION of the types.
5688
5689 2018-01-17  Wilco Dijkstra  <wdijkstr@arm.com>
5690             Richard Sandiford  <richard.sandiford@linaro.org>
5691
5692         * config/aarch64/aarch64.md (movti_aarch64): Use Uti constraint.
5693         * config/aarch64/aarch64.c (aarch64_mov128_immediate): New function.
5694         (aarch64_legitimate_constant_p): Just support CONST_DOUBLE
5695         SF/DF/TF mode to avoid creating illegal CONST_WIDE_INT immediates.
5696         * config/aarch64/aarch64-protos.h (aarch64_mov128_immediate):
5697         Add declaration.
5698         * config/aarch64/constraints.md (aarch64_movti_operand):
5699         Limit immediates.
5700         * config/aarch64/predicates.md (Uti): Add new constraint.
5701
5702 2018-01-17 Carl Love  <cel@us.ibm.com>
5703
5704         * config/rs6000/vsx.md (define_expand xl_len_r,
5705         define_expand stxvl, define_expand *stxvl): Add match_dup argument.
5706         (define_insn): Add, match_dup 1 argument to define_insn stxvll and
5707         lxvll.
5708         (define_expand, define_insn): Move the shift left from  the
5709         define_insn to the define_expand for lxvl and stxvl instructions.
5710         * config/rs6000/rs6000-builtin.def (BU_P9V_64BIT_VSX_2): Change LXVL
5711         and XL_LEN_R definitions to PURE.
5712
5713 2018-01-17  Uros Bizjak  <ubizjak@gmail.com>
5714
5715         * config/i386/i386.c (indirect_thunk_name): Declare regno
5716         as unsigned int.  Compare regno with INVALID_REGNUM.
5717         (output_indirect_thunk): Ditto.
5718         (output_indirect_thunk_function): Ditto.
5719         (ix86_code_end): Declare regno as unsigned int.  Use INVALID_REGNUM
5720         in the call to output_indirect_thunk_function.
5721
5722 2018-01-17  Richard Sandiford  <richard.sandiford@linaro.org>
5723
5724         PR middle-end/83884
5725         * expr.c (expand_expr_real_1): Use the size of GET_MODE (op0)
5726         rather than the size of inner_type to determine the stack slot size
5727         when handling VIEW_CONVERT_EXPRs on strict-alignment targets.
5728
5729 2018-01-16  Sebastian Peryt  <sebastian.peryt@intel.com>
5730
5731         PR target/83546
5732         * config/i386/i386.c (ix86_option_override_internal): Add PTA_RDRND
5733         to PTA_SILVERMONT.
5734
5735 2018-01-16  Michael Meissner  <meissner@linux.vnet.ibm.com>
5736
5737         * config.gcc (powerpc*-linux*-*): Add support for 64-bit little
5738         endian Linux systems to optionally enable multilibs for selecting
5739         the long double type if the user configured an explicit type.
5740         * config/rs6000/rs6000.h (TARGET_IEEEQUAD_MULTILIB): Indicate we
5741         have no long double multilibs if not defined.
5742         * config/rs6000/rs6000.c (rs6000_option_override_internal): Do not
5743         warn if the user used -mabi={ieee,ibm}longdouble and we built
5744         multilibs for long double.
5745         * config/rs6000/linux64.h (MULTILIB_DEFAULTS_IEEE): Define as the
5746         appropriate multilib option.
5747         (MULTILIB_DEFAULTS): Add MULTILIB_DEFAULTS_IEEE to the default
5748         multilib options.
5749         * config/rs6000/t-ldouble-linux64le-ibm: New configuration files
5750         for building long double multilibs.
5751         * config/rs6000/t-ldouble-linux64le-ieee: Likewise.
5752
5753 2018-01-16  John David Anglin  <danglin@gcc.gnu.org>
5754
5755         * config.gcc (hppa*-*-linux*): Change callee copies ABI to caller
5756         copies.
5757
5758         * config/pa.h (MALLOC_ABI_ALIGNMENT): Set 32-bit alignment default to
5759         64 bits.
5760         * config/pa/pa32-linux.h (MALLOC_ABI_ALIGNMENT): Set alignment to
5761         128 bits.
5762
5763         * config/pa/som.h (ASM_DECLARE_FUNCTION_NAME): Cleanup type and mode
5764         variables.
5765
5766         * config/pa/pa.c (pa_function_arg_size): Apply CEIL to GET_MODE_SIZE
5767         return value.
5768
5769 2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>
5770
5771         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): For an
5772         ADDR_EXPR, do not count the offset of a COMPONENT_REF twice.
5773
5774 2018-01-16  Kelvin Nilsen  <kelvin@gcc.gnu.org>
5775
5776         * config/rs6000/rs6000-p8swap.c (rs6000_gen_stvx): Generate
5777         different rtl trees depending on TARGET_64BIT.
5778         (rs6000_gen_lvx): Likewise.
5779
5780 2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>
5781
5782         * config/visium/visium.md (nop): Tweak comment.
5783         (hazard_nop): Likewise.
5784
5785 2018-01-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
5786
5787         * config/rs6000/rs6000.c (rs6000_opt_vars): Add entry for
5788         -mspeculate-indirect-jumps.
5789         * config/rs6000/rs6000.md (*call_indirect_elfv2<mode>): Disable
5790         for -mno-speculate-indirect-jumps.
5791         (*call_indirect_elfv2<mode>_nospec): New define_insn.
5792         (*call_value_indirect_elfv2<mode>): Disable for
5793         -mno-speculate-indirect-jumps.
5794         (*call_value_indirect_elfv2<mode>_nospec): New define_insn.
5795         (indirect_jump): Emit different RTL for
5796         -mno-speculate-indirect-jumps.
5797         (*indirect_jump<mode>): Disable for
5798         -mno-speculate-indirect-jumps.
5799         (*indirect_jump<mode>_nospec): New define_insn.
5800         (tablejump): Emit different RTL for
5801         -mno-speculate-indirect-jumps.
5802         (tablejumpsi): Disable for -mno-speculate-indirect-jumps.
5803         (tablejumpsi_nospec): New define_expand.
5804         (tablejumpdi): Disable for -mno-speculate-indirect-jumps.
5805         (tablejumpdi_nospec): New define_expand.
5806         (*tablejump<mode>_internal1): Disable for
5807         -mno-speculate-indirect-jumps.
5808         (*tablejump<mode>_internal1_nospec): New define_insn.
5809         * config/rs6000/rs6000.opt (mspeculate-indirect-jumps): New
5810         option.
5811
5812 2018-01-16  Artyom Skrobov tyomitch@gmail.com
5813
5814         * caller-save.c (insert_save): Drop unnecessary parameter.  All
5815         callers updated.
5816
5817 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
5818             Richard Biener  <rguenth@suse.de>
5819
5820         PR libgomp/83590
5821         * gimplify.c (gimplify_one_sizepos): For is_gimple_constant (expr)
5822         return early, inline manually is_gimple_sizepos.  Make sure if we
5823         call gimplify_expr we don't end up with a gimple constant.
5824         * tree.c (variably_modified_type_p): Don't return true for
5825         is_gimple_constant (_t).  Inline manually is_gimple_sizepos.
5826         * gimplify.h (is_gimple_sizepos): Remove.
5827
5828 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
5829
5830         PR tree-optimization/83857
5831         * tree-vect-loop.c (vect_analyze_loop_operations): Don't call
5832         vectorizable_live_operation for pure SLP statements.
5833         (vectorizable_live_operation): Handle PHIs.
5834
5835 2018-01-16  Richard Biener  <rguenther@suse.de>
5836
5837         PR tree-optimization/83867
5838         * tree-vect-stmts.c (vect_transform_stmt): Precompute
5839         nested_in_vect_loop_p since the scalar stmt may get invalidated.
5840
5841 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
5842
5843         PR c/83844
5844         * stor-layout.c (handle_warn_if_not_align): Use byte_position and
5845         multiple_of_p instead of unchecked tree_to_uhwi and UHWI check.
5846         If off is not INTEGER_CST, issue a may not be aligned warning
5847         rather than isn't aligned.  Use isn%'t rather than isn't.
5848         * fold-const.c (multiple_of_p) <case BIT_AND_EXPR>: Don't fall through
5849         into MULT_EXPR.
5850         <case MULT_EXPR>: Improve the case when bottom and one of the
5851         MULT_EXPR operands are INTEGER_CSTs and bottom is multiple of that
5852         operand, in that case check if the other operand is multiple of
5853         bottom divided by the INTEGER_CST operand.
5854
5855 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
5856
5857         PR target/83858
5858         * config/pa/pa.h (FUNCTION_ARG_SIZE): Delete.
5859         * config/pa/pa-protos.h (pa_function_arg_size): Declare.
5860         * config/pa/som.h (ASM_DECLARE_FUNCTION_NAME): Use
5861         pa_function_arg_size instead of FUNCTION_ARG_SIZE.
5862         * config/pa/pa.c (pa_function_arg_advance): Likewise.
5863         (pa_function_arg, pa_arg_partial_bytes): Likewise.
5864         (pa_function_arg_size): New function.
5865
5866 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
5867
5868         * fold-const.c (fold_ternary_loc): Construct the vec_perm_indices
5869         in a separate statement.
5870
5871 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
5872
5873         PR tree-optimization/83847
5874         * tree-vect-data-refs.c (vect_analyze_data_ref_accesses): Don't
5875         group gathers and scatters.
5876
5877 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
5878
5879         PR rtl-optimization/86620
5880         * params.def (max-sched-ready-insns): Bump minimum value to 1.
5881
5882         PR rtl-optimization/83213
5883         * recog.c (peep2_attempt): Copy over CROSSING_JUMP_P from peepinsn
5884         to last if both are JUMP_INSNs.
5885
5886         PR tree-optimization/83843
5887         * gimple-ssa-store-merging.c
5888         (imm_store_chain_info::output_merged_store): Handle bit_not_p on
5889         store_immediate_info for bswap/nop orig_stores.
5890
5891 2018-01-15  Andrew Waterman  <andrew@sifive.com>
5892
5893         * config/riscv/riscv.c (riscv_rtx_costs) <MULT>: Increase cost if
5894         !TARGET_MUL.
5895         <UDIV>: Increase cost if !TARGET_DIV.
5896
5897 2018-01-15  Segher Boessenkool  <segher@kernel.crashing.org>
5898
5899         * config/rs6000/rs6000.md (define_attr "type"): Remove delayed_cr.
5900         (define_attr "cr_logical_3op"): New.
5901         (cceq_ior_compare): Adjust.
5902         (cceq_ior_compare_complement): Adjust.
5903         (*cceq_rev_compare): Adjust.
5904         * config/rs6000/rs6000.c (rs6000_adjust_cost): Adjust.
5905         (is_cracked_insn): Adjust.
5906         (insn_must_be_first_in_group): Adjust.
5907         * config/rs6000/40x.md: Adjust.
5908         * config/rs6000/440.md: Adjust.
5909         * config/rs6000/476.md: Adjust.
5910         * config/rs6000/601.md: Adjust.
5911         * config/rs6000/603.md: Adjust.
5912         * config/rs6000/6xx.md: Adjust.
5913         * config/rs6000/7450.md: Adjust.
5914         * config/rs6000/7xx.md: Adjust.
5915         * config/rs6000/8540.md: Adjust.
5916         * config/rs6000/cell.md: Adjust.
5917         * config/rs6000/e300c2c3.md: Adjust.
5918         * config/rs6000/e500mc.md: Adjust.
5919         * config/rs6000/e500mc64.md: Adjust.
5920         * config/rs6000/e5500.md: Adjust.
5921         * config/rs6000/e6500.md: Adjust.
5922         * config/rs6000/mpc.md: Adjust.
5923         * config/rs6000/power4.md: Adjust.
5924         * config/rs6000/power5.md: Adjust.
5925         * config/rs6000/power6.md: Adjust.
5926         * config/rs6000/power7.md: Adjust.
5927         * config/rs6000/power8.md: Adjust.
5928         * config/rs6000/power9.md: Adjust.
5929         * config/rs6000/rs64.md: Adjust.
5930         * config/rs6000/titan.md: Adjust.
5931
5932 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
5933
5934         * config/i386/predicates.md (indirect_branch_operand): Rewrite
5935         ix86_indirect_branch_register logic.
5936
5937 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
5938
5939         * config/i386/constraints.md (Bs): Update
5940         ix86_indirect_branch_register check.  Don't check
5941         ix86_indirect_branch_register with GOT_memory_operand.
5942         (Bw): Likewise.
5943         * config/i386/predicates.md (GOT_memory_operand): Don't check
5944         ix86_indirect_branch_register here.
5945         (GOT32_symbol_operand): Likewise.
5946
5947 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
5948
5949         * config/i386/predicates.md (constant_call_address_operand):
5950         Rewrite ix86_indirect_branch_register logic.
5951         (sibcall_insn_operand): Likewise.
5952
5953 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
5954
5955         * config/i386/constraints.md (Bs): Replace
5956         ix86_indirect_branch_thunk_register with
5957         ix86_indirect_branch_register.
5958         (Bw): Likewise.
5959         * config/i386/i386.md (indirect_jump): Likewise.
5960         (tablejump): Likewise.
5961         (*sibcall_memory): Likewise.
5962         (*sibcall_value_memory): Likewise.
5963         Peepholes of indirect call and jump via memory: Likewise.
5964         * config/i386/i386.opt: Likewise.
5965         * config/i386/predicates.md (indirect_branch_operand): Likewise.
5966         (GOT_memory_operand): Likewise.
5967         (call_insn_operand): Likewise.
5968         (sibcall_insn_operand): Likewise.
5969         (GOT32_symbol_operand): Likewise.
5970
5971 2018-01-15  Jakub Jelinek  <jakub@redhat.com>
5972
5973         PR middle-end/83837
5974         * omp-expand.c (expand_omp_atomic_pipeline): Use loaded_val
5975         type rather than type addr's type points to.
5976         (expand_omp_atomic_mutex): Likewise.
5977         (expand_omp_atomic): Likewise.
5978
5979 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
5980
5981         PR target/83839
5982         * config/i386/i386.c (output_indirect_thunk_function): Use
5983         ASM_OUTPUT_LABEL, instead of ASM_OUTPUT_DEF, for TARGET_MACHO
5984         for  __x86_return_thunk.
5985
5986 2018-01-15  Richard Biener  <rguenther@suse.de>
5987
5988         PR middle-end/83850
5989         * expmed.c (extract_bit_field_1): Fix typo.
5990
5991 2018-01-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
5992
5993         PR target/83687
5994         * config/arm/iterators.md (VF): New mode iterator.
5995         * config/arm/neon.md (neon_vabd<mode>_2): Use the above.
5996         Remove integer-related logic from pattern.
5997         (neon_vabd<mode>_3): Likewise.
5998
5999 2018-01-15  Jakub Jelinek  <jakub@redhat.com>
6000
6001         PR middle-end/82694
6002         * common.opt (fstrict-overflow): No longer an alias.
6003         (fwrapv-pointer): New option.
6004         * tree.h (TYPE_OVERFLOW_WRAPS, TYPE_OVERFLOW_UNDEFINED): Define
6005         also for pointer types based on flag_wrapv_pointer.
6006         * opts.c (common_handle_option) <case OPT_fstrict_overflow>: Set
6007         opts->x_flag_wrap[pv] to !value, clear opts->x_flag_trapv if
6008         opts->x_flag_wrapv got set.
6009         * fold-const.c (fold_comparison, fold_binary_loc): Revert 2017-08-01
6010         changes, just use TYPE_OVERFLOW_UNDEFINED on pointer type instead of
6011         POINTER_TYPE_OVERFLOW_UNDEFINED.
6012         * match.pd: Likewise in address comparison pattern.
6013         * doc/invoke.texi: Document -fwrapv and -fstrict-overflow.
6014
6015 2018-01-15  Richard Biener  <rguenther@suse.de>
6016
6017         PR lto/83804
6018         * tree.c (free_lang_data_in_type): Always unlink TYPE_DECLs
6019         from TYPE_FIELDS.  Free TYPE_BINFO if not used by devirtualization.
6020         Reset type names to their identifier if their TYPE_DECL doesn't
6021         have linkage (and thus is used for ODR and devirt).
6022         (save_debug_info_for_decl): Remove.
6023         (save_debug_info_for_type): Likewise.
6024         (add_tree_to_fld_list): Adjust.
6025         * tree-pretty-print.c (dump_generic_node): Make dumping of
6026         type names more robust.
6027
6028 2018-01-15  Richard Biener  <rguenther@suse.de>
6029
6030         * BASE-VER: Bump to 8.0.1.
6031
6032 2018-01-14  Martin Sebor  <msebor@redhat.com>
6033
6034         PR other/83508
6035         * builtins.c (check_access): Avoid warning when the no-warning bit
6036         is set.
6037
6038 2018-01-14  Cory Fields  <cory-nospam-@coryfields.com>
6039
6040         * tree-ssa-loop-im.c (sort_bbs_in_loop_postorder_cmp): Stabilize sort.
6041         * ira-color (allocno_hard_regs_compare): Likewise.
6042
6043 2018-01-14  Nathan Rossi  <nathan@nathanrossi.com>
6044
6045         PR target/83013
6046         * config/microblaze/microblaze.c (microblaze_asm_output_ident):
6047         Use .pushsection/.popsection.
6048
6049 2018-01-14  Martin Sebor  <msebor@redhat.com>
6050
6051         PR c++/81327
6052         * doc/invoke.texi (-Wlass-memaccess): Document suppression by casting.
6053
6054 2018-01-14  Jakub Jelinek  <jakub@redhat.com>
6055
6056         * config.gcc (i[34567]86-*-*): Remove one duplicate gfniintrin.h
6057         entry from extra_headers.
6058         (x86_64-*-*): Remove two duplicate gfniintrin.h entries from
6059         extra_headers, make the list bitwise identical to the i?86-*-* one.
6060
6061 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
6062
6063         * config/i386/i386.c (ix86_set_indirect_branch_type): Disallow
6064         -mcmodel=large with -mindirect-branch=thunk,
6065         -mindirect-branch=thunk-extern, -mfunction-return=thunk and
6066         -mfunction-return=thunk-extern.
6067         * doc/invoke.texi: Document -mcmodel=large is incompatible with
6068         -mindirect-branch=thunk, -mindirect-branch=thunk-extern,
6069         -mfunction-return=thunk and -mfunction-return=thunk-extern.
6070
6071 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
6072
6073         * config/i386/i386.c (print_reg): Print the name of the full
6074         integer register without '%'.
6075         (ix86_print_operand): Handle 'V'.
6076          * doc/extend.texi: Document 'V' modifier.
6077
6078 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
6079
6080         * config/i386/constraints.md (Bs): Disallow memory operand for
6081         -mindirect-branch-register.
6082         (Bw): Likewise.
6083         * config/i386/predicates.md (indirect_branch_operand): Likewise.
6084         (GOT_memory_operand): Likewise.
6085         (call_insn_operand): Likewise.
6086         (sibcall_insn_operand): Likewise.
6087         (GOT32_symbol_operand): Likewise.
6088         * config/i386/i386.md (indirect_jump): Call convert_memory_address
6089         for -mindirect-branch-register.
6090         (tablejump): Likewise.
6091         (*sibcall_memory): Likewise.
6092         (*sibcall_value_memory): Likewise.
6093         Disallow peepholes of indirect call and jump via memory for
6094         -mindirect-branch-register.
6095         (*call_pop): Replace m with Bw.
6096         (*call_value_pop): Likewise.
6097         (*sibcall_pop_memory): Replace m with Bs.
6098         * config/i386/i386.opt (mindirect-branch-register): New option.
6099         * doc/invoke.texi: Document -mindirect-branch-register option.
6100
6101 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
6102
6103         * config/i386/i386-protos.h (ix86_output_function_return): New.
6104         * config/i386/i386.c (ix86_set_indirect_branch_type): Also
6105         set function_return_type.
6106         (indirect_thunk_name): Add ret_p to indicate thunk for function
6107         return.
6108         (output_indirect_thunk_function): Pass false to
6109         indirect_thunk_name.
6110         (ix86_output_indirect_branch_via_reg): Likewise.
6111         (ix86_output_indirect_branch_via_push): Likewise.
6112         (output_indirect_thunk_function): Create alias for function
6113         return thunk if regno < 0.
6114         (ix86_output_function_return): New function.
6115         (ix86_handle_fndecl_attribute): Handle function_return.
6116         (ix86_attribute_table): Add function_return.
6117         * config/i386/i386.h (machine_function): Add
6118         function_return_type.
6119         * config/i386/i386.md (simple_return_internal): Use
6120         ix86_output_function_return.
6121         (simple_return_internal_long): Likewise.
6122         * config/i386/i386.opt (mfunction-return=): New option.
6123         (indirect_branch): Mention -mfunction-return=.
6124         * doc/extend.texi: Document function_return function attribute.
6125         * doc/invoke.texi: Document -mfunction-return= option.
6126
6127 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
6128
6129         * config/i386/i386-opts.h (indirect_branch): New.
6130         * config/i386/i386-protos.h (ix86_output_indirect_jmp): Likewise.
6131         * config/i386/i386.c (ix86_using_red_zone): Disallow red-zone
6132         with local indirect jump when converting indirect call and jump.
6133         (ix86_set_indirect_branch_type): New.
6134         (ix86_set_current_function): Call ix86_set_indirect_branch_type.
6135         (indirectlabelno): New.
6136         (indirect_thunk_needed): Likewise.
6137         (indirect_thunk_bnd_needed): Likewise.
6138         (indirect_thunks_used): Likewise.
6139         (indirect_thunks_bnd_used): Likewise.
6140         (INDIRECT_LABEL): Likewise.
6141         (indirect_thunk_name): Likewise.
6142         (output_indirect_thunk): Likewise.
6143         (output_indirect_thunk_function): Likewise.
6144         (ix86_output_indirect_branch_via_reg): Likewise.
6145         (ix86_output_indirect_branch_via_push): Likewise.
6146         (ix86_output_indirect_branch): Likewise.
6147         (ix86_output_indirect_jmp): Likewise.
6148         (ix86_code_end): Call output_indirect_thunk_function if needed.
6149         (ix86_output_call_insn): Call ix86_output_indirect_branch if
6150         needed.
6151         (ix86_handle_fndecl_attribute): Handle indirect_branch.
6152         (ix86_attribute_table): Add indirect_branch.
6153         * config/i386/i386.h (machine_function): Add indirect_branch_type
6154         and has_local_indirect_jump.
6155         * config/i386/i386.md (indirect_jump): Set has_local_indirect_jump
6156         to true.
6157         (tablejump): Likewise.
6158         (*indirect_jump): Use ix86_output_indirect_jmp.
6159         (*tablejump_1): Likewise.
6160         (simple_return_indirect_internal): Likewise.
6161         * config/i386/i386.opt (mindirect-branch=): New option.
6162         (indirect_branch): New.
6163         (keep): Likewise.
6164         (thunk): Likewise.
6165         (thunk-inline): Likewise.
6166         (thunk-extern): Likewise.
6167         * doc/extend.texi: Document indirect_branch function attribute.
6168         * doc/invoke.texi: Document -mindirect-branch= option.
6169
6170 2018-01-14  Jan Hubicka  <hubicka@ucw.cz>
6171
6172         PR ipa/83051
6173         * ipa-inline.c (edge_badness): Tolerate roundoff errors.
6174
6175 2018-01-14  Richard Sandiford  <richard.sandiford@linaro.org>
6176
6177         * ipa-inline.c (want_inline_small_function_p): Return false if
6178         inlining has already failed with CIF_FINAL_ERROR.
6179         (update_caller_keys): Call want_inline_small_function_p before
6180         can_inline_edge_p.
6181         (update_callee_keys): Likewise.
6182
6183 2018-01-10  Kelvin Nilsen  <kelvin@gcc.gnu.org>
6184
6185         * config/rs6000/rs6000-p8swap.c (rs6000_sum_of_two_registers_p):
6186         New function.
6187         (rs6000_quadword_masked_address_p): Likewise.
6188         (quad_aligned_load_p): Likewise.
6189         (quad_aligned_store_p): Likewise.
6190         (const_load_sequence_p): Add comment to describe the outer-most loop.
6191         (mimic_memory_attributes_and_flags): New function.
6192         (rs6000_gen_stvx): Likewise.
6193         (replace_swapped_aligned_store): Likewise.
6194         (rs6000_gen_lvx): Likewise.
6195         (replace_swapped_aligned_load): Likewise.
6196         (replace_swapped_load_constant): Capitalize argument name in
6197         comment describing this function.
6198         (rs6000_analyze_swaps): Add a third pass to search for vector loads
6199         and stores that access quad-word aligned addresses and replace
6200         with stvx or lvx instructions when appropriate.
6201         * config/rs6000/rs6000-protos.h (rs6000_sum_of_two_registers_p):
6202         New function prototype.
6203         (rs6000_quadword_masked_address_p): Likewise.
6204         (rs6000_gen_lvx): Likewise.
6205         (rs6000_gen_stvx): Likewise.
6206         * config/rs6000/vsx.md (*vsx_le_perm_load_<mode>): For modes
6207         VSX_D (V2DF, V2DI), modify this split to select lvx instruction
6208         when memory address is aligned.
6209         (*vsx_le_perm_load_<mode>): For modes VSX_W (V4SF, V4SI), modify
6210         this split to select lvx instruction when memory address is aligned.
6211         (*vsx_le_perm_load_v8hi): Modify this split to select lvx
6212         instruction when memory address is aligned.
6213         (*vsx_le_perm_load_v16qi): Likewise.
6214         (four unnamed splitters): Modify to select the stvx instruction
6215         when memory is aligned.
6216
6217 2018-01-13  Jan Hubicka  <hubicka@ucw.cz>
6218
6219         * predict.c (determine_unlikely_bbs): Handle correctly BBs
6220         which appears in the queue multiple times.
6221
6222 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6223             Alan Hayward  <alan.hayward@arm.com>
6224             David Sherwood  <david.sherwood@arm.com>
6225
6226         * tree-vectorizer.h (vec_lower_bound): New structure.
6227         (_loop_vec_info): Add check_nonzero and lower_bounds.
6228         (LOOP_VINFO_CHECK_NONZERO): New macro.
6229         (LOOP_VINFO_LOWER_BOUNDS): Likewise.
6230         (LOOP_REQUIRES_VERSIONING_FOR_ALIAS): Check lower_bounds too.
6231         * tree-data-ref.h (dr_with_seg_len): Add access_size and align
6232         fields.  Make seg_len the distance travelled, not including the
6233         access size.
6234         (dr_direction_indicator): Declare.
6235         (dr_zero_step_indicator): Likewise.
6236         (dr_known_forward_stride_p): Likewise.
6237         * tree-data-ref.c: Include stringpool.h, tree-vrp.h and
6238         tree-ssanames.h.
6239         (runtime_alias_check_p): Allow runtime alias checks with
6240         variable strides.
6241         (operator ==): Compare access_size and align.
6242         (prune_runtime_alias_test_list): Rework for new distinction between
6243         the access_size and seg_len.
6244         (create_intersect_range_checks_index): Likewise.  Cope with polynomial
6245         segment lengths.
6246         (get_segment_min_max): New function.
6247         (create_intersect_range_checks): Use it.
6248         (dr_step_indicator): New function.
6249         (dr_direction_indicator): Likewise.
6250         (dr_zero_step_indicator): Likewise.
6251         (dr_known_forward_stride_p): Likewise.
6252         * tree-loop-distribution.c (data_ref_segment_size): Return
6253         DR_STEP * (niters - 1).
6254         (compute_alias_check_pairs): Update call to the dr_with_seg_len
6255         constructor.
6256         * tree-vect-data-refs.c (vect_check_nonzero_value): New function.
6257         (vect_preserves_scalar_order_p): New function, split out from...
6258         (vect_analyze_data_ref_dependence): ...here.  Check for zero steps.
6259         (vect_vfa_segment_size): Return DR_STEP * (length_factor - 1).
6260         (vect_vfa_access_size): New function.
6261         (vect_vfa_align): Likewise.
6262         (vect_compile_time_alias): Take access_size_a and access_b arguments.
6263         (dump_lower_bound): New function.
6264         (vect_check_lower_bound): Likewise.
6265         (vect_small_gap_p): Likewise.
6266         (vectorizable_with_step_bound_p): Likewise.
6267         (vect_prune_runtime_alias_test_list): Ignore cross-iteration
6268         depencies if the vectorization factor is 1.  Convert the checks
6269         for nonzero steps into checks on the bounds of DR_STEP.  Try using
6270         a bunds check for variable steps if the minimum required step is
6271         relatively small. Update calls to the dr_with_seg_len
6272         constructor and to vect_compile_time_alias.
6273         * tree-vect-loop-manip.c (vect_create_cond_for_lower_bounds): New
6274         function.
6275         (vect_loop_versioning): Call it.
6276         * tree-vect-loop.c (vect_analyze_loop_2): Clear LOOP_VINFO_LOWER_BOUNDS
6277         when retrying.
6278         (vect_estimate_min_profitable_iters): Account for any bounds checks.
6279
6280 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6281             Alan Hayward  <alan.hayward@arm.com>
6282             David Sherwood  <david.sherwood@arm.com>
6283
6284         * doc/sourcebuild.texi (vect_scatter_store): Document.
6285         * optabs.def (scatter_store_optab, mask_scatter_store_optab): New
6286         optabs.
6287         * doc/md.texi (scatter_store@var{m}, mask_scatter_store@var{m}):
6288         Document.
6289         * genopinit.c (main): Add supports_vec_scatter_store and
6290         supports_vec_scatter_store_cached to target_optabs.
6291         * gimple.h (gimple_expr_type): Handle IFN_SCATTER_STORE and
6292         IFN_MASK_SCATTER_STORE.
6293         * internal-fn.def (SCATTER_STORE, MASK_SCATTER_STORE): New internal
6294         functions.
6295         * internal-fn.h (internal_store_fn_p): Declare.
6296         (internal_fn_stored_value_index): Likewise.
6297         * internal-fn.c (scatter_store_direct): New macro.
6298         (expand_scatter_store_optab_fn): New function.
6299         (direct_scatter_store_optab_supported_p): New macro.
6300         (internal_store_fn_p): New function.
6301         (internal_gather_scatter_fn_p): Handle IFN_SCATTER_STORE and
6302         IFN_MASK_SCATTER_STORE.
6303         (internal_fn_mask_index): Likewise.
6304         (internal_fn_stored_value_index): New function.
6305         (internal_gather_scatter_fn_supported_p): Adjust operand numbers
6306         for scatter stores.
6307         * optabs-query.h (supports_vec_scatter_store_p): Declare.
6308         * optabs-query.c (supports_vec_scatter_store_p): New function.
6309         * tree-vectorizer.h (vect_get_store_rhs): Declare.
6310         * tree-vect-data-refs.c (vect_analyze_data_ref_access): Return
6311         true for scatter stores.
6312         (vect_gather_scatter_fn_p): Handle scatter stores too.
6313         (vect_check_gather_scatter): Consider using scatter stores if
6314         supports_vec_scatter_store_p.
6315         * tree-vect-patterns.c (vect_try_gather_scatter_pattern): Handle
6316         scatter stores too.
6317         * tree-vect-stmts.c (exist_non_indexing_operands_for_use_p): Use
6318         internal_fn_stored_value_index.
6319         (check_load_store_masking): Handle scatter stores too.
6320         (vect_get_store_rhs): Make public.
6321         (vectorizable_call): Use internal_store_fn_p.
6322         (vectorizable_store): Handle scatter store internal functions.
6323         (vect_transform_stmt): Compare GROUP_STORE_COUNT with GROUP_SIZE
6324         when deciding whether the end of the group has been reached.
6325         * config/aarch64/aarch64.md (UNSPEC_ST1_SCATTER): New unspec.
6326         * config/aarch64/aarch64-sve.md (scatter_store<mode>): New expander.
6327         (mask_scatter_store<mode>): New insns.
6328
6329 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6330             Alan Hayward  <alan.hayward@arm.com>
6331             David Sherwood  <david.sherwood@arm.com>
6332
6333         * tree-vectorizer.h (vect_gather_scatter_fn_p): Declare.
6334         * tree-vect-data-refs.c (vect_gather_scatter_fn_p): Make public.
6335         * tree-vect-stmts.c (vect_truncate_gather_scatter_offset): New
6336         function.
6337         (vect_use_strided_gather_scatters_p): Take a masked_p argument.
6338         Use vect_truncate_gather_scatter_offset if we can't treat the
6339         operation as a normal gather load or scatter store.
6340         (get_group_load_store_type): Take the gather_scatter_info
6341         as argument.  Try using a gather load or scatter store for
6342         single-element groups.
6343         (get_load_store_type): Update calls to get_group_load_store_type
6344         and vect_use_strided_gather_scatters_p.
6345
6346 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6347             Alan Hayward  <alan.hayward@arm.com>
6348             David Sherwood  <david.sherwood@arm.com>
6349
6350         * tree-vectorizer.h (vect_create_data_ref_ptr): Take an extra
6351         optional tree argument.
6352         * tree-vect-data-refs.c (vect_check_gather_scatter): Check for
6353         null target hooks.
6354         (vect_create_data_ref_ptr): Take the iv_step as an optional argument,
6355         but continue to use the current value as a fallback.
6356         (bump_vector_ptr): Use operand_equal_p rather than tree_int_cst_compare
6357         to compare the updates.
6358         * tree-vect-stmts.c (vect_use_strided_gather_scatters_p): New function.
6359         (get_load_store_type): Use it when handling a strided access.
6360         (vect_get_strided_load_store_ops): New function.
6361         (vect_get_data_ptr_increment): Likewise.
6362         (vectorizable_load): Handle strided gather loads.  Always pass
6363         a step to vect_create_data_ref_ptr and bump_vector_ptr.
6364
6365 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6366             Alan Hayward  <alan.hayward@arm.com>
6367             David Sherwood  <david.sherwood@arm.com>
6368
6369         * doc/md.texi (gather_load@var{m}): Document.
6370         (mask_gather_load@var{m}): Likewise.
6371         * genopinit.c (main): Add supports_vec_gather_load and
6372         supports_vec_gather_load_cached to target_optabs.
6373         * optabs-tree.c (init_tree_optimization_optabs): Use
6374         ggc_cleared_alloc to allocate target_optabs.
6375         * optabs.def (gather_load_optab, mask_gather_laod_optab): New optabs.
6376         * internal-fn.def (GATHER_LOAD, MASK_GATHER_LOAD): New internal
6377         functions.
6378         * internal-fn.h (internal_load_fn_p): Declare.
6379         (internal_gather_scatter_fn_p): Likewise.
6380         (internal_fn_mask_index): Likewise.
6381         (internal_gather_scatter_fn_supported_p): Likewise.
6382         * internal-fn.c (gather_load_direct): New macro.
6383         (expand_gather_load_optab_fn): New function.
6384         (direct_gather_load_optab_supported_p): New macro.
6385         (direct_internal_fn_optab): New function.
6386         (internal_load_fn_p): Likewise.
6387         (internal_gather_scatter_fn_p): Likewise.
6388         (internal_fn_mask_index): Likewise.
6389         (internal_gather_scatter_fn_supported_p): Likewise.
6390         * optabs-query.c (supports_at_least_one_mode_p): New function.
6391         (supports_vec_gather_load_p): Likewise.
6392         * optabs-query.h (supports_vec_gather_load_p): Declare.
6393         * tree-vectorizer.h (gather_scatter_info): Add ifn, element_type
6394         and memory_type field.
6395         (NUM_PATTERNS): Bump to 15.
6396         * tree-vect-data-refs.c: Include internal-fn.h.
6397         (vect_gather_scatter_fn_p): New function.
6398         (vect_describe_gather_scatter_call): Likewise.
6399         (vect_check_gather_scatter): Try using internal functions for
6400         gather loads.  Recognize existing calls to a gather load function.
6401         (vect_analyze_data_refs): Consider using gather loads if
6402         supports_vec_gather_load_p.
6403         * tree-vect-patterns.c (vect_get_load_store_mask): New function.
6404         (vect_get_gather_scatter_offset_type): Likewise.
6405         (vect_convert_mask_for_vectype): Likewise.
6406         (vect_add_conversion_to_patterm): Likewise.
6407         (vect_try_gather_scatter_pattern): Likewise.
6408         (vect_recog_gather_scatter_pattern): New pattern recognizer.
6409         (vect_vect_recog_func_ptrs): Add it.
6410         * tree-vect-stmts.c (exist_non_indexing_operands_for_use_p): Use
6411         internal_fn_mask_index and internal_gather_scatter_fn_p.
6412         (check_load_store_masking): Take the gather_scatter_info as an
6413         argument and handle gather loads.
6414         (vect_get_gather_scatter_ops): New function.
6415         (vectorizable_call): Check internal_load_fn_p.
6416         (vectorizable_load): Likewise.  Handle gather load internal
6417         functions.
6418         (vectorizable_store): Update call to check_load_store_masking.
6419         * config/aarch64/aarch64.md (UNSPEC_LD1_GATHER): New unspec.
6420         * config/aarch64/iterators.md (SVE_S, SVE_D): New mode iterators.
6421         * config/aarch64/predicates.md (aarch64_gather_scale_operand_w)
6422         (aarch64_gather_scale_operand_d): New predicates.
6423         * config/aarch64/aarch64-sve.md (gather_load<mode>): New expander.
6424         (mask_gather_load<mode>): New insns.
6425
6426 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6427             Alan Hayward  <alan.hayward@arm.com>
6428             David Sherwood  <david.sherwood@arm.com>
6429
6430         * optabs.def (fold_left_plus_optab): New optab.
6431         * doc/md.texi (fold_left_plus_@var{m}): Document.
6432         * internal-fn.def (IFN_FOLD_LEFT_PLUS): New internal function.
6433         * internal-fn.c (fold_left_direct): Define.
6434         (expand_fold_left_optab_fn): Likewise.
6435         (direct_fold_left_optab_supported_p): Likewise.
6436         * fold-const-call.c (fold_const_fold_left): New function.
6437         (fold_const_call): Use it to fold CFN_FOLD_LEFT_PLUS.
6438         * tree-parloops.c (valid_reduction_p): New function.
6439         (gather_scalar_reductions): Use it.
6440         * tree-vectorizer.h (FOLD_LEFT_REDUCTION): New vect_reduction_type.
6441         (vect_finish_replace_stmt): Declare.
6442         * tree-vect-loop.c (fold_left_reduction_fn): New function.
6443         (needs_fold_left_reduction_p): New function, split out from...
6444         (vect_is_simple_reduction): ...here.  Accept reductions that
6445         forbid reassociation, but give them type FOLD_LEFT_REDUCTION.
6446         (vect_force_simple_reduction): Also store the reduction type in
6447         the assignment's STMT_VINFO_REDUC_TYPE.
6448         (vect_model_reduction_cost): Handle FOLD_LEFT_REDUCTION.
6449         (merge_with_identity): New function.
6450         (vect_expand_fold_left): Likewise.
6451         (vectorize_fold_left_reduction): Likewise.
6452         (vectorizable_reduction): Handle FOLD_LEFT_REDUCTION.  Leave the
6453         scalar phi in place for it.  Check for target support and reject
6454         cases that would reassociate the operation.  Defer the transform
6455         phase to vectorize_fold_left_reduction.
6456         * config/aarch64/aarch64.md (UNSPEC_FADDA): New unspec.
6457         * config/aarch64/aarch64-sve.md (fold_left_plus_<mode>): New expander.
6458         (*fold_left_plus_<mode>, *pred_fold_left_plus_<mode>): New insns.
6459
6460 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6461
6462         * tree-if-conv.c (predicate_mem_writes): Remove redundant
6463         call to ifc_temp_var.
6464
6465 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6466             Alan Hayward  <alan.hayward@arm.com>
6467             David Sherwood  <david.sherwood@arm.com>
6468
6469         * target.def (legitimize_address_displacement): Take the original
6470         offset as a poly_int.
6471         * targhooks.h (default_legitimize_address_displacement): Update
6472         accordingly.
6473         * targhooks.c (default_legitimize_address_displacement): Likewise.
6474         * doc/tm.texi: Regenerate.
6475         * lra-constraints.c (base_plus_disp_to_reg): Take the displacement
6476         as an argument, moving assert of ad->disp == ad->disp_term to...
6477         (process_address_1): ...here.  Update calls to base_plus_disp_to_reg.
6478         Try calling targetm.legitimize_address_displacement before expanding
6479         the address rather than afterwards, and adjust for the new interface.
6480         * config/aarch64/aarch64.c (aarch64_legitimize_address_displacement):
6481         Match the new hook interface.  Handle SVE addresses.
6482         * config/sh/sh.c (sh_legitimize_address_displacement): Make the
6483         new hook interface.
6484
6485 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6486
6487         * Makefile.in (OBJS): Add early-remat.o.
6488         * target.def (select_early_remat_modes): New hook.
6489         * doc/tm.texi.in (TARGET_SELECT_EARLY_REMAT_MODES): New hook.
6490         * doc/tm.texi: Regenerate.
6491         * targhooks.h (default_select_early_remat_modes): Declare.
6492         * targhooks.c (default_select_early_remat_modes): New function.
6493         * timevar.def (TV_EARLY_REMAT): New timevar.
6494         * passes.def (pass_early_remat): New pass.
6495         * tree-pass.h (make_pass_early_remat): Declare.
6496         * early-remat.c: New file.
6497         * config/aarch64/aarch64.c (aarch64_select_early_remat_modes): New
6498         function.
6499         (TARGET_SELECT_EARLY_REMAT_MODES): Define.
6500
6501 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6502             Alan Hayward  <alan.hayward@arm.com>
6503             David Sherwood  <david.sherwood@arm.com>
6504
6505         * tree-vect-loop-manip.c (vect_gen_scalar_loop_niters): Replace
6506         vfm1 with a bound_epilog parameter.
6507         (vect_do_peeling): Update calls accordingly, and move the prologue
6508         call earlier in the function.  Treat the base bound_epilog as 0 for
6509         fully-masked loops and retain vf - 1 for other loops.  Add 1 to
6510         this base when peeling for gaps.
6511         * tree-vect-loop.c (vect_analyze_loop_2): Allow peeling for gaps
6512         with fully-masked loops.
6513         (vect_estimate_min_profitable_iters): Handle the single peeled
6514         iteration in that case.
6515
6516 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6517             Alan Hayward  <alan.hayward@arm.com>
6518             David Sherwood  <david.sherwood@arm.com>
6519
6520         * tree-vect-data-refs.c (vect_analyze_group_access_1): Allow
6521         single-element interleaving even if the size is not a power of 2.
6522         * tree-vect-stmts.c (get_load_store_type): Disallow elementwise
6523         accesses for single-element interleaving if the group size is
6524         not a power of 2.
6525
6526 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6527             Alan Hayward  <alan.hayward@arm.com>
6528             David Sherwood  <david.sherwood@arm.com>
6529
6530         * doc/md.texi (fold_extract_last_@var{m}): Document.
6531         * doc/sourcebuild.texi (vect_fold_extract_last): Likewise.
6532         * optabs.def (fold_extract_last_optab): New optab.
6533         * internal-fn.def (FOLD_EXTRACT_LAST): New internal function.
6534         * internal-fn.c (fold_extract_direct): New macro.
6535         (expand_fold_extract_optab_fn): Likewise.
6536         (direct_fold_extract_optab_supported_p): Likewise.
6537         * tree-vectorizer.h (EXTRACT_LAST_REDUCTION): New vect_reduction_type.
6538         * tree-vect-loop.c (vect_model_reduction_cost): Handle
6539         EXTRACT_LAST_REDUCTION.
6540         (get_initial_def_for_reduction): Do not create an initial vector
6541         for EXTRACT_LAST_REDUCTION reductions.
6542         (vectorizable_reduction): Leave the scalar phi in place for
6543         EXTRACT_LAST_REDUCTIONs.  Try using EXTRACT_LAST_REDUCTION
6544         ahead of INTEGER_INDUC_COND_REDUCTION.  Do not check for an
6545         epilogue code for EXTRACT_LAST_REDUCTION and defer the
6546         transform phase to vectorizable_condition.
6547         * tree-vect-stmts.c (vect_finish_stmt_generation_1): New function,
6548         split out from...
6549         (vect_finish_stmt_generation): ...here.
6550         (vect_finish_replace_stmt): New function.
6551         (vectorizable_condition): Handle EXTRACT_LAST_REDUCTION.
6552         * config/aarch64/aarch64-sve.md (fold_extract_last_<mode>): New
6553         pattern.
6554         * config/aarch64/aarch64.md (UNSPEC_CLASTB): New unspec.
6555
6556 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6557             Alan Hayward  <alan.hayward@arm.com>
6558             David Sherwood  <david.sherwood@arm.com>
6559
6560         * doc/md.texi (extract_last_@var{m}): Document.
6561         * optabs.def (extract_last_optab): New optab.
6562         * internal-fn.def (EXTRACT_LAST): New internal function.
6563         * internal-fn.c (cond_unary_direct): New macro.
6564         (expand_cond_unary_optab_fn): Likewise.
6565         (direct_cond_unary_optab_supported_p): Likewise.
6566         * tree-vect-loop.c (vectorizable_live_operation): Allow fully-masked
6567         loops using EXTRACT_LAST.
6568         * config/aarch64/aarch64-sve.md (aarch64_sve_lastb<mode>): Rename to...
6569         (extract_last_<mode>): ...this optab.
6570         (vec_extract<mode><Vel>): Update accordingly.
6571
6572 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6573             Alan Hayward  <alan.hayward@arm.com>
6574             David Sherwood  <david.sherwood@arm.com>
6575
6576         * target.def (empty_mask_is_expensive): New hook.
6577         * doc/tm.texi.in (TARGET_VECTORIZE_EMPTY_MASK_IS_EXPENSIVE): New hook.
6578         * doc/tm.texi: Regenerate.
6579         * targhooks.h (default_empty_mask_is_expensive): Declare.
6580         * targhooks.c (default_empty_mask_is_expensive): New function.
6581         * tree-vectorizer.c (vectorize_loops): Only call optimize_mask_stores
6582         if the target says that empty masks are expensive.
6583         * config/aarch64/aarch64.c (aarch64_empty_mask_is_expensive):
6584         New function.
6585         (TARGET_VECTORIZE_EMPTY_MASK_IS_EXPENSIVE): Redefine.
6586
6587 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6588             Alan Hayward  <alan.hayward@arm.com>
6589             David Sherwood  <david.sherwood@arm.com>
6590
6591         * tree-vectorizer.h (_loop_vec_info::mask_skip_niters): New field.
6592         (LOOP_VINFO_MASK_SKIP_NITERS): New macro.
6593         (vect_use_loop_mask_for_alignment_p): New function.
6594         (vect_prepare_for_masked_peels, vect_gen_while_not): Declare.
6595         * tree-vect-loop-manip.c (vect_set_loop_masks_directly): Add an
6596         niters_skip argument.  Make sure that the first niters_skip elements
6597         of the first iteration are inactive.
6598         (vect_set_loop_condition_masked): Handle LOOP_VINFO_MASK_SKIP_NITERS.
6599         Update call to vect_set_loop_masks_directly.
6600         (get_misalign_in_elems): New function, split out from...
6601         (vect_gen_prolog_loop_niters): ...here.
6602         (vect_update_init_of_dr): Take a code argument that specifies whether
6603         the adjustment should be added or subtracted.
6604         (vect_update_init_of_drs): Likewise.
6605         (vect_prepare_for_masked_peels): New function.
6606         (vect_do_peeling): Skip prologue peeling if we're using a mask
6607         instead.  Update call to vect_update_inits_of_drs.
6608         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
6609         mask_skip_niters.
6610         (vect_analyze_loop_2): Allow fully-masked loops with peeling for
6611         alignment.  Do not include the number of peeled iterations in
6612         the minimum threshold in that case.
6613         (vectorizable_induction): Adjust the start value down by
6614         LOOP_VINFO_MASK_SKIP_NITERS iterations.
6615         (vect_transform_loop): Call vect_prepare_for_masked_peels.
6616         Take the number of skipped iterations into account when calculating
6617         the loop bounds.
6618         * tree-vect-stmts.c (vect_gen_while_not): New function.
6619
6620 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6621             Alan Hayward  <alan.hayward@arm.com>
6622             David Sherwood  <david.sherwood@arm.com>
6623
6624         * doc/sourcebuild.texi (vect_fully_masked): Document.
6625         * params.def (PARAM_MIN_VECT_LOOP_BOUND): Change minimum and
6626         default value to 0.
6627         * tree-vect-loop.c (vect_analyze_loop_costing): New function,
6628         split out from...
6629         (vect_analyze_loop_2): ...here. Don't check the vectorization
6630         factor against the number of loop iterations if the loop is
6631         fully-masked.
6632
6633 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6634             Alan Hayward  <alan.hayward@arm.com>
6635             David Sherwood  <david.sherwood@arm.com>
6636
6637         * tree-ssa-loop-ivopts.c (USE_ADDRESS): Split into...
6638         (USE_REF_ADDRESS, USE_PTR_ADDRESS): ...these new use types.
6639         (dump_groups): Update accordingly.
6640         (iv_use::mem_type): New member variable.
6641         (address_p): New function.
6642         (record_use): Add a mem_type argument and initialize the new
6643         mem_type field.
6644         (record_group_use): Add a mem_type argument.  Use address_p.
6645         Remove obsolete null checks of base_object.  Update call to record_use.
6646         (find_interesting_uses_op): Update call to record_group_use.
6647         (find_interesting_uses_cond): Likewise.
6648         (find_interesting_uses_address): Likewise.
6649         (get_mem_type_for_internal_fn): New function.
6650         (find_address_like_use): Likewise.
6651         (find_interesting_uses_stmt): Try find_address_like_use before
6652         calling find_interesting_uses_op.
6653         (addr_offset_valid_p): Use the iv mem_type field as the type
6654         of the addressed memory.
6655         (add_autoinc_candidates): Likewise.
6656         (get_address_cost): Likewise.
6657         (split_small_address_groups_p): Use address_p.
6658         (split_address_groups): Likewise.
6659         (add_iv_candidate_for_use): Likewise.
6660         (autoinc_possible_for_pair): Likewise.
6661         (rewrite_groups): Likewise.
6662         (get_use_type): Check for USE_REF_ADDRESS instead of USE_ADDRESS.
6663         (determine_group_iv_cost): Update after split of USE_ADDRESS.
6664         (get_alias_ptr_type_for_ptr_address): New function.
6665         (rewrite_use_address): Rewrite address uses in calls that were
6666         identified by find_address_like_use.
6667
6668 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6669             Alan Hayward  <alan.hayward@arm.com>
6670             David Sherwood  <david.sherwood@arm.com>
6671
6672         * expr.c (expand_expr_addr_expr_1): Handle ADDR_EXPRs of
6673         TARGET_MEM_REFs.
6674         * gimple-expr.h (is_gimple_addressable: Likewise.
6675         * gimple-expr.c (is_gimple_address): Likewise.
6676         * internal-fn.c (expand_call_mem_ref): New function.
6677         (expand_mask_load_optab_fn): Use it.
6678         (expand_mask_store_optab_fn): Likewise.
6679
6680 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6681             Alan Hayward  <alan.hayward@arm.com>
6682             David Sherwood  <david.sherwood@arm.com>
6683
6684         * doc/md.texi (cond_add@var{mode}, cond_sub@var{mode})
6685         (cond_and@var{mode}, cond_ior@var{mode}, cond_xor@var{mode})
6686         (cond_smin@var{mode}, cond_smax@var{mode}, cond_umin@var{mode})
6687         (cond_umax@var{mode}): Document.
6688         * optabs.def (cond_add_optab, cond_sub_optab, cond_and_optab)
6689         (cond_ior_optab, cond_xor_optab, cond_smin_optab, cond_smax_optab)
6690         (cond_umin_optab, cond_umax_optab): New optabs.
6691         * internal-fn.def (COND_ADD, COND_SUB, COND_MIN, COND_MAX, COND_AND)
6692         (COND_IOR, COND_XOR): New internal functions.
6693         * internal-fn.h (get_conditional_internal_fn): Declare.
6694         * internal-fn.c (cond_binary_direct): New macro.
6695         (expand_cond_binary_optab_fn): Likewise.
6696         (direct_cond_binary_optab_supported_p): Likewise.
6697         (get_conditional_internal_fn): New function.
6698         * tree-vect-loop.c (vectorizable_reduction): Handle fully-masked loops.
6699         Cope with reduction statements that are vectorized as calls rather
6700         than assignments.
6701         * config/aarch64/aarch64-sve.md (cond_<optab><mode>): New insns.
6702         * config/aarch64/iterators.md (UNSPEC_COND_ADD, UNSPEC_COND_SUB)
6703         (UNSPEC_COND_SMAX, UNSPEC_COND_UMAX, UNSPEC_COND_SMIN)
6704         (UNSPEC_COND_UMIN, UNSPEC_COND_AND, UNSPEC_COND_ORR)
6705         (UNSPEC_COND_EOR): New unspecs.
6706         (optab): Add mappings for them.
6707         (SVE_COND_INT_OP, SVE_COND_FP_OP): New int iterators.
6708         (sve_int_op, sve_fp_op): New int attributes.
6709
6710 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6711             Alan Hayward  <alan.hayward@arm.com>
6712             David Sherwood  <david.sherwood@arm.com>
6713
6714         * optabs.def (while_ult_optab): New optab.
6715         * doc/md.texi (while_ult@var{m}@var{n}): Document.
6716         * internal-fn.def (WHILE_ULT): New internal function.
6717         * internal-fn.h (direct_internal_fn_supported_p): New override
6718         that takes two types as argument.
6719         * internal-fn.c (while_direct): New macro.
6720         (expand_while_optab_fn): New function.
6721         (convert_optab_supported_p): Likewise.
6722         (direct_while_optab_supported_p): New macro.
6723         * wide-int.h (wi::udiv_ceil): New function.
6724         * tree-vectorizer.h (rgroup_masks): New structure.
6725         (vec_loop_masks): New typedef.
6726         (_loop_vec_info): Add masks, mask_compare_type, can_fully_mask_p
6727         and fully_masked_p.
6728         (LOOP_VINFO_CAN_FULLY_MASK_P, LOOP_VINFO_FULLY_MASKED_P)
6729         (LOOP_VINFO_MASKS, LOOP_VINFO_MASK_COMPARE_TYPE): New macros.
6730         (vect_max_vf): New function.
6731         (slpeel_make_loop_iterate_ntimes): Delete.
6732         (vect_set_loop_condition, vect_get_loop_mask_type, vect_gen_while)
6733         (vect_halve_mask_nunits, vect_double_mask_nunits): Declare.
6734         (vect_record_loop_mask, vect_get_loop_mask): Likewise.
6735         * tree-vect-loop-manip.c: Include tree-ssa-loop-niter.h,
6736         internal-fn.h, stor-layout.h and optabs-query.h.
6737         (vect_set_loop_mask): New function.
6738         (add_preheader_seq): Likewise.
6739         (add_header_seq): Likewise.
6740         (interleave_supported_p): Likewise.
6741         (vect_maybe_permute_loop_masks): Likewise.
6742         (vect_set_loop_masks_directly): Likewise.
6743         (vect_set_loop_condition_masked): Likewise.
6744         (vect_set_loop_condition_unmasked): New function, split out from
6745         slpeel_make_loop_iterate_ntimes.
6746         (slpeel_make_loop_iterate_ntimes): Rename to..
6747         (vect_set_loop_condition): ...this.  Use vect_set_loop_condition_masked
6748         for fully-masked loops and vect_set_loop_condition_unmasked otherwise.
6749         (vect_do_peeling): Update call accordingly.
6750         (vect_gen_vector_loop_niters): Use VF as the step for fully-masked
6751         loops.
6752         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
6753         mask_compare_type, can_fully_mask_p and fully_masked_p.
6754         (release_vec_loop_masks): New function.
6755         (_loop_vec_info): Use it to free the loop masks.
6756         (can_produce_all_loop_masks_p): New function.
6757         (vect_get_max_nscalars_per_iter): Likewise.
6758         (vect_verify_full_masking): Likewise.
6759         (vect_analyze_loop_2): Save LOOP_VINFO_CAN_FULLY_MASK_P around
6760         retries, and free the mask rgroups before retrying.  Check loop-wide
6761         reasons for disallowing fully-masked loops.  Make the final decision
6762         about whether use a fully-masked loop or not.
6763         (vect_estimate_min_profitable_iters): Do not assume that peeling
6764         for the number of iterations will be needed for fully-masked loops.
6765         (vectorizable_reduction): Disable fully-masked loops.
6766         (vectorizable_live_operation): Likewise.
6767         (vect_halve_mask_nunits): New function.
6768         (vect_double_mask_nunits): Likewise.
6769         (vect_record_loop_mask): Likewise.
6770         (vect_get_loop_mask): Likewise.
6771         (vect_transform_loop): Handle the case in which the final loop
6772         iteration might handle a partial vector.  Call vect_set_loop_condition
6773         instead of slpeel_make_loop_iterate_ntimes.
6774         * tree-vect-stmts.c: Include tree-ssa-loop-niter.h and gimple-fold.h.
6775         (check_load_store_masking): New function.
6776         (prepare_load_store_mask): Likewise.
6777         (vectorizable_store): Handle fully-masked loops.
6778         (vectorizable_load): Likewise.
6779         (supportable_widening_operation): Use vect_halve_mask_nunits for
6780         booleans.
6781         (supportable_narrowing_operation): Likewise vect_double_mask_nunits.
6782         (vect_gen_while): New function.
6783         * config/aarch64/aarch64.md (umax<mode>3): New expander.
6784         (aarch64_uqdec<mode>): New insn.
6785
6786 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6787             Alan Hayward  <alan.hayward@arm.com>
6788             David Sherwood  <david.sherwood@arm.com>
6789
6790         * optabs.def (reduc_and_scal_optab, reduc_ior_scal_optab)
6791         (reduc_xor_scal_optab): New optabs.
6792         * doc/md.texi (reduc_and_scal_@var{m}, reduc_ior_scal_@var{m})
6793         (reduc_xor_scal_@var{m}): Document.
6794         * doc/sourcebuild.texi (vect_logical_reduc): Likewise.
6795         * internal-fn.def (IFN_REDUC_AND, IFN_REDUC_IOR, IFN_REDUC_XOR): New
6796         internal functions.
6797         * fold-const-call.c (fold_const_call): Handle them.
6798         * tree-vect-loop.c (reduction_fn_for_scalar_code): Return the new
6799         internal functions for BIT_AND_EXPR, BIT_IOR_EXPR and BIT_XOR_EXPR.
6800         * config/aarch64/aarch64-sve.md (reduc_<bit_reduc>_scal_<mode>):
6801         (*reduc_<bit_reduc>_scal_<mode>): New patterns.
6802         * config/aarch64/iterators.md (UNSPEC_ANDV, UNSPEC_ORV)
6803         (UNSPEC_XORV): New unspecs.
6804         (optab): Add entries for them.
6805         (BITWISEV): New int iterator.
6806         (bit_reduc_op): New int attributes.
6807
6808 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6809             Alan Hayward  <alan.hayward@arm.com>
6810             David Sherwood  <david.sherwood@arm.com>
6811
6812         * doc/md.texi (vec_shl_insert_@var{m}): New optab.
6813         * internal-fn.def (VEC_SHL_INSERT): New internal function.
6814         * optabs.def (vec_shl_insert_optab): New optab.
6815         * tree-vectorizer.h (can_duplicate_and_interleave_p): Declare.
6816         (duplicate_and_interleave): Likewise.
6817         * tree-vect-loop.c: Include internal-fn.h.
6818         (neutral_op_for_slp_reduction): New function, split out from
6819         get_initial_defs_for_reduction.
6820         (get_initial_def_for_reduction): Handle option 2 for variable-length
6821         vectors by loading the neutral value into a vector and then shifting
6822         the initial value into element 0.
6823         (get_initial_defs_for_reduction): Replace the code argument with
6824         the neutral value calculated by neutral_op_for_slp_reduction.
6825         Use gimple_build_vector for constant-length vectors.
6826         Use IFN_VEC_SHL_INSERT for variable-length vectors if all
6827         but the first group_size elements have a neutral value.
6828         Use duplicate_and_interleave otherwise.
6829         (vect_create_epilog_for_reduction): Take a neutral_op parameter.
6830         Update call to get_initial_defs_for_reduction.  Handle SLP
6831         reductions for variable-length vectors by creating one vector
6832         result for each scalar result, with the elements associated
6833         with other scalar results stubbed out with the neutral value.
6834         (vectorizable_reduction): Call neutral_op_for_slp_reduction.
6835         Require IFN_VEC_SHL_INSERT for double reductions on
6836         variable-length vectors, or SLP reductions that have
6837         a neutral value.  Require can_duplicate_and_interleave_p
6838         support for variable-length unchained SLP reductions if there
6839         is no neutral value, such as for MIN/MAX reductions.  Also require
6840         the number of vector elements to be a multiple of the number of
6841         SLP statements when doing variable-length unchained SLP reductions.
6842         Update call to vect_create_epilog_for_reduction.
6843         * tree-vect-slp.c (can_duplicate_and_interleave_p): Make public
6844         and remove initial values.
6845         (duplicate_and_interleave): Make public.
6846         * config/aarch64/aarch64.md (UNSPEC_INSR): New unspec.
6847         * config/aarch64/aarch64-sve.md (vec_shl_insert_<mode>): New insn.
6848
6849 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6850             Alan Hayward  <alan.hayward@arm.com>
6851             David Sherwood  <david.sherwood@arm.com>
6852
6853         * tree-vect-slp.c: Include gimple-fold.h and internal-fn.h
6854         (can_duplicate_and_interleave_p): New function.
6855         (vect_get_and_check_slp_defs): Take the vector of statements
6856         rather than just the current one.  Remove excess parentheses.
6857         Restriction rejectinon of vect_constant_def and vect_external_def
6858         for variable-length vectors to boolean types, or types for which
6859         can_duplicate_and_interleave_p is false.
6860         (vect_build_slp_tree_2): Update call to vect_get_and_check_slp_defs.
6861         (duplicate_and_interleave): New function.
6862         (vect_get_constant_vectors): Use gimple_build_vector for
6863         constant-length vectors and suitable variable-length constant
6864         vectors.  Use duplicate_and_interleave for other variable-length
6865         vectors.  Don't defer the update when inserting new statements.
6866
6867 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6868             Alan Hayward  <alan.hayward@arm.com>
6869             David Sherwood  <david.sherwood@arm.com>
6870
6871         * tree-vect-loop.c (vect_estimate_min_profitable_iters): Make sure
6872         min_profitable_iters doesn't go negative.
6873
6874 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6875             Alan Hayward  <alan.hayward@arm.com>
6876             David Sherwood  <david.sherwood@arm.com>
6877
6878         * doc/md.texi (vec_mask_load_lanes@var{m}@var{n}): Document.
6879         (vec_mask_store_lanes@var{m}@var{n}): Likewise.
6880         * optabs.def (vec_mask_load_lanes_optab): New optab.
6881         (vec_mask_store_lanes_optab): Likewise.
6882         * internal-fn.def (MASK_LOAD_LANES): New internal function.
6883         (MASK_STORE_LANES): Likewise.
6884         * internal-fn.c (mask_load_lanes_direct): New macro.
6885         (mask_store_lanes_direct): Likewise.
6886         (expand_mask_load_optab_fn): Handle masked operations.
6887         (expand_mask_load_lanes_optab_fn): New macro.
6888         (expand_mask_store_optab_fn): Handle masked operations.
6889         (expand_mask_store_lanes_optab_fn): New macro.
6890         (direct_mask_load_lanes_optab_supported_p): Likewise.
6891         (direct_mask_store_lanes_optab_supported_p): Likewise.
6892         * tree-vectorizer.h (vect_store_lanes_supported): Take a masked_p
6893         parameter.
6894         (vect_load_lanes_supported): Likewise.
6895         * tree-vect-data-refs.c (strip_conversion): New function.
6896         (can_group_stmts_p): Likewise.
6897         (vect_analyze_data_ref_accesses): Use it instead of checking
6898         for a pair of assignments.
6899         (vect_store_lanes_supported): Take a masked_p parameter.
6900         (vect_load_lanes_supported): Likewise.
6901         * tree-vect-loop.c (vect_analyze_loop_2): Update calls to
6902         vect_store_lanes_supported and vect_load_lanes_supported.
6903         * tree-vect-slp.c (vect_analyze_slp_instance): Likewise.
6904         * tree-vect-stmts.c (get_group_load_store_type): Take a masked_p
6905         parameter.  Don't allow gaps for masked accesses.
6906         Use vect_get_store_rhs.  Update calls to vect_store_lanes_supported
6907         and vect_load_lanes_supported.
6908         (get_load_store_type): Take a masked_p parameter and update
6909         call to get_group_load_store_type.
6910         (vectorizable_store): Update call to get_load_store_type.
6911         Handle IFN_MASK_STORE_LANES.
6912         (vectorizable_load): Update call to get_load_store_type.
6913         Handle IFN_MASK_LOAD_LANES.
6914
6915 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6916             Alan Hayward  <alan.hayward@arm.com>
6917             David Sherwood  <david.sherwood@arm.com>
6918
6919         * config/aarch64/aarch64-modes.def: Define x2, x3 and x4 vector
6920         modes for SVE.
6921         * config/aarch64/aarch64-protos.h
6922         (aarch64_sve_struct_memory_operand_p): Declare.
6923         * config/aarch64/iterators.md (SVE_STRUCT): New mode iterator.
6924         (vector_count, insn_length, VSINGLE, vsingle): New mode attributes.
6925         (VPRED, vpred): Handle SVE structure modes.
6926         * config/aarch64/constraints.md (Utx): New constraint.
6927         * config/aarch64/predicates.md (aarch64_sve_struct_memory_operand)
6928         (aarch64_sve_struct_nonimmediate_operand): New predicates.
6929         * config/aarch64/aarch64.md (UNSPEC_LDN, UNSPEC_STN): New unspecs.
6930         * config/aarch64/aarch64-sve.md (mov<mode>, *aarch64_sve_mov<mode>_le)
6931         (*aarch64_sve_mov<mode>_be, pred_mov<mode>): New patterns for
6932         structure modes.  Split into pieces after RA.
6933         (vec_load_lanes<mode><vsingle>, vec_mask_load_lanes<mode><vsingle>)
6934         (vec_store_lanes<mode><vsingle>, vec_mask_store_lanes<mode><vsingle>):
6935         New patterns.
6936         * config/aarch64/aarch64.c (aarch64_classify_vector_mode): Handle
6937         SVE structure modes.
6938         (aarch64_classify_address): Likewise.
6939         (sizetochar): Move earlier in file.
6940         (aarch64_print_operand): Handle SVE register lists.
6941         (aarch64_array_mode): New function.
6942         (aarch64_sve_struct_memory_operand_p): Likewise.
6943         (TARGET_ARRAY_MODE): Redefine.
6944
6945 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6946             Alan Hayward  <alan.hayward@arm.com>
6947             David Sherwood  <david.sherwood@arm.com>
6948
6949         * target.def (array_mode): New target hook.
6950         * doc/tm.texi.in (TARGET_ARRAY_MODE): New hook.
6951         * doc/tm.texi: Regenerate.
6952         * hooks.h (hook_optmode_mode_uhwi_none): Declare.
6953         * hooks.c (hook_optmode_mode_uhwi_none): New function.
6954         * tree-vect-data-refs.c (vect_lanes_optab_supported_p): Use
6955         targetm.array_mode.
6956         * stor-layout.c (mode_for_array): Likewise.  Support polynomial
6957         type sizes.
6958
6959 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6960             Alan Hayward  <alan.hayward@arm.com>
6961             David Sherwood  <david.sherwood@arm.com>
6962
6963         * fold-const.c (fold_binary_loc): Check the argument types
6964         rather than the result type when testing for a vector operation.
6965
6966 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6967
6968         * doc/tm.texi.in (DWARF_LAZY_REGISTER_VALUE): Document.
6969         * doc/tm.texi: Regenerate.
6970
6971 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
6972             Alan Hayward  <alan.hayward@arm.com>
6973             David Sherwood  <david.sherwood@arm.com>
6974
6975         * doc/invoke.texi (-msve-vector-bits=): Document new option.
6976         (sve): Document new AArch64 extension.
6977         * doc/md.texi (w): Extend the description of the AArch64
6978         constraint to include SVE vectors.
6979         (Upl, Upa): Document new AArch64 predicate constraints.
6980         * config/aarch64/aarch64-opts.h (aarch64_sve_vector_bits_enum): New
6981         enum.
6982         * config/aarch64/aarch64.opt (sve_vector_bits): New enum.
6983         (msve-vector-bits=): New option.
6984         * config/aarch64/aarch64-option-extensions.def (fp, simd): Disable
6985         SVE when these are disabled.
6986         (sve): New extension.
6987         * config/aarch64/aarch64-modes.def: Define SVE vector and predicate
6988         modes.  Adjust their number of units based on aarch64_sve_vg.
6989         (MAX_BITSIZE_MODE_ANY_MODE): Define.
6990         * config/aarch64/aarch64-protos.h (ADDR_QUERY_ANY): New
6991         aarch64_addr_query_type.
6992         (aarch64_const_vec_all_same_in_range_p, aarch64_sve_pred_mode)
6993         (aarch64_sve_cnt_immediate_p, aarch64_sve_addvl_addpl_immediate_p)
6994         (aarch64_sve_inc_dec_immediate_p, aarch64_add_offset_temporaries)
6995         (aarch64_split_add_offset, aarch64_output_sve_cnt_immediate)
6996         (aarch64_output_sve_addvl_addpl, aarch64_output_sve_inc_dec_immediate)
6997         (aarch64_output_sve_mov_immediate, aarch64_output_ptrue): Declare.
6998         (aarch64_simd_imm_zero_p): Delete.
6999         (aarch64_check_zero_based_sve_index_immediate): Declare.
7000         (aarch64_sve_index_immediate_p, aarch64_sve_arith_immediate_p)
7001         (aarch64_sve_bitmask_immediate_p, aarch64_sve_dup_immediate_p)
7002         (aarch64_sve_cmp_immediate_p, aarch64_sve_float_arith_immediate_p)
7003         (aarch64_sve_float_mul_immediate_p): Likewise.
7004         (aarch64_classify_symbol): Take the offset as a HOST_WIDE_INT
7005         rather than an rtx.
7006         (aarch64_sve_ld1r_operand_p, aarch64_sve_ldr_operand_p): Declare.
7007         (aarch64_expand_mov_immediate): Take a gen_vec_duplicate callback.
7008         (aarch64_emit_sve_pred_move, aarch64_expand_sve_mem_move): Declare.
7009         (aarch64_expand_sve_vec_cmp_int, aarch64_expand_sve_vec_cmp_float)
7010         (aarch64_expand_sve_vcond, aarch64_expand_sve_vec_perm): Declare.
7011         (aarch64_regmode_natural_size): Likewise.
7012         * config/aarch64/aarch64.h (AARCH64_FL_SVE): New macro.
7013         (AARCH64_FL_V8_3, AARCH64_FL_RCPC, AARCH64_FL_DOTPROD): Shift
7014         left one place.
7015         (AARCH64_ISA_SVE, TARGET_SVE): New macros.
7016         (FIXED_REGISTERS, CALL_USED_REGISTERS, REGISTER_NAMES): Add entries
7017         for VG and the SVE predicate registers.
7018         (V_ALIASES): Add a "z"-prefixed alias.
7019         (FIRST_PSEUDO_REGISTER): Change to P15_REGNUM + 1.
7020         (AARCH64_DWARF_VG, AARCH64_DWARF_P0): New macros.
7021         (PR_REGNUM_P, PR_LO_REGNUM_P): Likewise.
7022         (PR_LO_REGS, PR_HI_REGS, PR_REGS): New reg_classes.
7023         (REG_CLASS_NAMES): Add entries for them.
7024         (REG_CLASS_CONTENTS): Likewise.  Update ALL_REGS to include VG
7025         and the predicate registers.
7026         (aarch64_sve_vg): Declare.
7027         (BITS_PER_SVE_VECTOR, BYTES_PER_SVE_VECTOR, BYTES_PER_SVE_PRED)
7028         (SVE_BYTE_MODE, MAX_COMPILE_TIME_VEC_BYTES): New macros.
7029         (REGMODE_NATURAL_SIZE): Define.
7030         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Handle
7031         SVE macros.
7032         * config/aarch64/aarch64.c: Include cfgrtl.h.
7033         (simd_immediate_info): Add a constructor for series vectors,
7034         and an associated step field.
7035         (aarch64_sve_vg): New variable.
7036         (aarch64_dbx_register_number): Handle VG and the predicate registers.
7037         (aarch64_vect_struct_mode_p, aarch64_vector_mode_p): Delete.
7038         (VEC_ADVSIMD, VEC_SVE_DATA, VEC_SVE_PRED, VEC_STRUCT, VEC_ANY_SVE)
7039         (VEC_ANY_DATA, VEC_STRUCT): New constants.
7040         (aarch64_advsimd_struct_mode_p, aarch64_sve_pred_mode_p)
7041         (aarch64_classify_vector_mode, aarch64_vector_data_mode_p)
7042         (aarch64_sve_data_mode_p, aarch64_sve_pred_mode)
7043         (aarch64_get_mask_mode): New functions.
7044         (aarch64_hard_regno_nregs): Handle SVE data modes for FP_REGS
7045         and FP_LO_REGS.  Handle PR_REGS, PR_LO_REGS and PR_HI_REGS.
7046         (aarch64_hard_regno_mode_ok): Handle VG.  Also handle the SVE
7047         predicate modes and predicate registers.  Explicitly restrict
7048         GPRs to modes of 16 bytes or smaller.  Only allow FP registers
7049         to store a vector mode if it is recognized by
7050         aarch64_classify_vector_mode.
7051         (aarch64_regmode_natural_size): New function.
7052         (aarch64_hard_regno_caller_save_mode): Return the original mode
7053         for predicates.
7054         (aarch64_sve_cnt_immediate_p, aarch64_output_sve_cnt_immediate)
7055         (aarch64_sve_addvl_addpl_immediate_p, aarch64_output_sve_addvl_addpl)
7056         (aarch64_sve_inc_dec_immediate_p, aarch64_output_sve_inc_dec_immediate)
7057         (aarch64_add_offset_1_temporaries, aarch64_offset_temporaries): New
7058         functions.
7059         (aarch64_add_offset): Add a temp2 parameter.  Assert that temp1
7060         does not overlap dest if the function is frame-related.  Handle
7061         SVE constants.
7062         (aarch64_split_add_offset): New function.
7063         (aarch64_add_sp, aarch64_sub_sp): Add temp2 parameters and pass
7064         them aarch64_add_offset.
7065         (aarch64_allocate_and_probe_stack_space): Add a temp2 parameter
7066         and update call to aarch64_sub_sp.
7067         (aarch64_add_cfa_expression): New function.
7068         (aarch64_expand_prologue): Pass extra temporary registers to the
7069         functions above.  Handle the case in which we need to emit new
7070         DW_CFA_expressions for registers that were originally saved
7071         relative to the stack pointer, but now have to be expressed
7072         relative to the frame pointer.
7073         (aarch64_output_mi_thunk): Pass extra temporary registers to the
7074         functions above.
7075         (aarch64_expand_epilogue): Likewise.  Prevent inheritance of
7076         IP0 and IP1 values for SVE frames.
7077         (aarch64_expand_vec_series): New function.
7078         (aarch64_expand_sve_widened_duplicate): Likewise.
7079         (aarch64_expand_sve_const_vector): Likewise.
7080         (aarch64_expand_mov_immediate): Add a gen_vec_duplicate parameter.
7081         Handle SVE constants.  Use emit_move_insn to move a force_const_mem
7082         into the register, rather than emitting a SET directly.
7083         (aarch64_emit_sve_pred_move, aarch64_expand_sve_mem_move)
7084         (aarch64_get_reg_raw_mode, offset_4bit_signed_scaled_p)
7085         (offset_6bit_unsigned_scaled_p, aarch64_offset_7bit_signed_scaled_p)
7086         (offset_9bit_signed_scaled_p): New functions.
7087         (aarch64_replicate_bitmask_imm): New function.
7088         (aarch64_bitmask_imm): Use it.
7089         (aarch64_cannot_force_const_mem): Reject expressions involving
7090         a CONST_POLY_INT.  Update call to aarch64_classify_symbol.
7091         (aarch64_classify_index): Handle SVE indices, by requiring
7092         a plain register index with a scale that matches the element size.
7093         (aarch64_classify_address): Handle SVE addresses.  Assert that
7094         the mode of the address is VOIDmode or an integer mode.
7095         Update call to aarch64_classify_symbol.
7096         (aarch64_classify_symbolic_expression): Update call to
7097         aarch64_classify_symbol.
7098         (aarch64_const_vec_all_in_range_p): New function.
7099         (aarch64_print_vector_float_operand): Likewise.
7100         (aarch64_print_operand): Handle 'N' and 'C'.  Use "zN" rather than
7101         "vN" for FP registers with SVE modes.  Handle (const ...) vectors
7102         and the FP immediates 1.0 and 0.5.
7103         (aarch64_print_address_internal): Handle SVE addresses.
7104         (aarch64_print_operand_address): Use ADDR_QUERY_ANY.
7105         (aarch64_regno_regclass): Handle predicate registers.
7106         (aarch64_secondary_reload): Handle big-endian reloads of SVE
7107         data modes.
7108         (aarch64_class_max_nregs): Handle SVE modes and predicate registers.
7109         (aarch64_rtx_costs): Check for ADDVL and ADDPL instructions.
7110         (aarch64_convert_sve_vector_bits): New function.
7111         (aarch64_override_options): Use it to handle -msve-vector-bits=.
7112         (aarch64_classify_symbol): Take the offset as a HOST_WIDE_INT
7113         rather than an rtx.
7114         (aarch64_legitimate_constant_p): Use aarch64_classify_vector_mode.
7115         Handle SVE vector and predicate modes.  Accept VL-based constants
7116         that need only one temporary register, and VL offsets that require
7117         no temporary registers.
7118         (aarch64_conditional_register_usage): Mark the predicate registers
7119         as fixed if SVE isn't available.
7120         (aarch64_vector_mode_supported_p): Use aarch64_classify_vector_mode.
7121         Return true for SVE vector and predicate modes.
7122         (aarch64_simd_container_mode): Take the number of bits as a poly_int64
7123         rather than an unsigned int.  Handle SVE modes.
7124         (aarch64_preferred_simd_mode): Update call accordingly.  Handle
7125         SVE modes.
7126         (aarch64_autovectorize_vector_sizes): Add BYTES_PER_SVE_VECTOR
7127         if SVE is enabled.
7128         (aarch64_sve_index_immediate_p, aarch64_sve_arith_immediate_p)
7129         (aarch64_sve_bitmask_immediate_p, aarch64_sve_dup_immediate_p)
7130         (aarch64_sve_cmp_immediate_p, aarch64_sve_float_arith_immediate_p)
7131         (aarch64_sve_float_mul_immediate_p): New functions.
7132         (aarch64_sve_valid_immediate): New function.
7133         (aarch64_simd_valid_immediate): Use it as the fallback for SVE vectors.
7134         Explicitly reject structure modes.  Check for INDEX constants.
7135         Handle PTRUE and PFALSE constants.
7136         (aarch64_check_zero_based_sve_index_immediate): New function.
7137         (aarch64_simd_imm_zero_p): Delete.
7138         (aarch64_mov_operand_p): Use aarch64_simd_valid_immediate for
7139         vector modes.  Accept constants in the range of CNT[BHWD].
7140         (aarch64_simd_scalar_immediate_valid_for_move): Explicitly
7141         ask for an Advanced SIMD mode.
7142         (aarch64_sve_ld1r_operand_p, aarch64_sve_ldr_operand_p): New functions.
7143         (aarch64_simd_vector_alignment): Handle SVE predicates.
7144         (aarch64_vectorize_preferred_vector_alignment): New function.
7145         (aarch64_simd_vector_alignment_reachable): Use it instead of
7146         the vector size.
7147         (aarch64_shift_truncation_mask): Use aarch64_vector_data_mode_p.
7148         (aarch64_output_sve_mov_immediate, aarch64_output_ptrue): New
7149         functions.
7150         (MAX_VECT_LEN): Delete.
7151         (expand_vec_perm_d): Add a vec_flags field.
7152         (emit_unspec2, aarch64_expand_sve_vec_perm): New functions.
7153         (aarch64_evpc_trn, aarch64_evpc_uzp, aarch64_evpc_zip)
7154         (aarch64_evpc_ext): Don't apply a big-endian lane correction
7155         for SVE modes.
7156         (aarch64_evpc_rev): Rename to...
7157         (aarch64_evpc_rev_local): ...this.  Use a predicated operation for SVE.
7158         (aarch64_evpc_rev_global): New function.
7159         (aarch64_evpc_dup): Enforce a 64-byte range for SVE DUP.
7160         (aarch64_evpc_tbl): Use MAX_COMPILE_TIME_VEC_BYTES instead of
7161         MAX_VECT_LEN.
7162         (aarch64_evpc_sve_tbl): New function.
7163         (aarch64_expand_vec_perm_const_1): Update after rename of
7164         aarch64_evpc_rev.  Handle SVE permutes too, trying
7165         aarch64_evpc_rev_global and using aarch64_evpc_sve_tbl rather
7166         than aarch64_evpc_tbl.
7167         (aarch64_vectorize_vec_perm_const): Initialize vec_flags.
7168         (aarch64_sve_cmp_operand_p, aarch64_unspec_cond_code)
7169         (aarch64_gen_unspec_cond, aarch64_expand_sve_vec_cmp_int)
7170         (aarch64_emit_unspec_cond, aarch64_emit_unspec_cond_or)
7171         (aarch64_emit_inverted_unspec_cond, aarch64_expand_sve_vec_cmp_float)
7172         (aarch64_expand_sve_vcond): New functions.
7173         (aarch64_modes_tieable_p): Use aarch64_vector_data_mode_p instead
7174         of aarch64_vector_mode_p.
7175         (aarch64_dwarf_poly_indeterminate_value): New function.
7176         (aarch64_compute_pressure_classes): Likewise.
7177         (aarch64_can_change_mode_class): Likewise.
7178         (TARGET_GET_RAW_RESULT_MODE, TARGET_GET_RAW_ARG_MODE): Redefine.
7179         (TARGET_VECTORIZE_PREFERRED_VECTOR_ALIGNMENT): Likewise.
7180         (TARGET_VECTORIZE_GET_MASK_MODE): Likewise.
7181         (TARGET_DWARF_POLY_INDETERMINATE_VALUE): Likewise.
7182         (TARGET_COMPUTE_PRESSURE_CLASSES): Likewise.
7183         (TARGET_CAN_CHANGE_MODE_CLASS): Likewise.
7184         * config/aarch64/constraints.md (Upa, Upl, Uav, Uat, Usv, Usi, Utr)
7185         (Uty, Dm, vsa, vsc, vsd, vsi, vsn, vsl, vsm, vsA, vsM, vsN): New
7186         constraints.
7187         (Dn, Dl, Dr): Accept const as well as const_vector.
7188         (Dz): Likewise.  Compare against CONST0_RTX.
7189         * config/aarch64/iterators.md: Refer to "Advanced SIMD" instead
7190         of "vector" where appropriate.
7191         (SVE_ALL, SVE_BH, SVE_BHS, SVE_BHSI, SVE_HSDI, SVE_HSF, SVE_SD)
7192         (SVE_SDI, SVE_I, SVE_F, PRED_ALL, PRED_BHS): New mode iterators.
7193         (UNSPEC_SEL, UNSPEC_ANDF, UNSPEC_IORF, UNSPEC_XORF, UNSPEC_COND_LT)
7194         (UNSPEC_COND_LE, UNSPEC_COND_EQ, UNSPEC_COND_NE, UNSPEC_COND_GE)
7195         (UNSPEC_COND_GT, UNSPEC_COND_LO, UNSPEC_COND_LS, UNSPEC_COND_HS)
7196         (UNSPEC_COND_HI, UNSPEC_COND_UO): New unspecs.
7197         (Vetype, VEL, Vel, VWIDE, Vwide, vw, vwcore, V_INT_EQUIV)
7198         (v_int_equiv): Extend to SVE modes.
7199         (Vesize, V128, v128, Vewtype, V_FP_EQUIV, v_fp_equiv, VPRED): New
7200         mode attributes.
7201         (LOGICAL_OR, SVE_INT_UNARY, SVE_FP_UNARY): New code iterators.
7202         (optab): Handle popcount, smin, smax, umin, umax, abs and sqrt.
7203         (logical_nn, lr, sve_int_op, sve_fp_op): New code attributs.
7204         (LOGICALF, OPTAB_PERMUTE, UNPACK, UNPACK_UNSIGNED, SVE_COND_INT_CMP)
7205         (SVE_COND_FP_CMP): New int iterators.
7206         (perm_hilo): Handle the new unpack unspecs.
7207         (optab, logicalf_op, su, perm_optab, cmp_op, imm_con): New int
7208         attributes.
7209         * config/aarch64/predicates.md (aarch64_sve_cnt_immediate)
7210         (aarch64_sve_addvl_addpl_immediate, aarch64_split_add_offset_immediate)
7211         (aarch64_pluslong_or_poly_operand, aarch64_nonmemory_operand)
7212         (aarch64_equality_operator, aarch64_constant_vector_operand)
7213         (aarch64_sve_ld1r_operand, aarch64_sve_ldr_operand): New predicates.
7214         (aarch64_sve_nonimmediate_operand): Likewise.
7215         (aarch64_sve_general_operand): Likewise.
7216         (aarch64_sve_dup_operand, aarch64_sve_arith_immediate): Likewise.
7217         (aarch64_sve_sub_arith_immediate, aarch64_sve_inc_dec_immediate)
7218         (aarch64_sve_logical_immediate, aarch64_sve_mul_immediate): Likewise.
7219         (aarch64_sve_dup_immediate, aarch64_sve_cmp_vsc_immediate): Likewise.
7220         (aarch64_sve_cmp_vsd_immediate, aarch64_sve_index_immediate): Likewise.
7221         (aarch64_sve_float_arith_immediate): Likewise.
7222         (aarch64_sve_float_arith_with_sub_immediate): Likewise.
7223         (aarch64_sve_float_mul_immediate, aarch64_sve_arith_operand): Likewise.
7224         (aarch64_sve_add_operand, aarch64_sve_logical_operand): Likewise.
7225         (aarch64_sve_lshift_operand, aarch64_sve_rshift_operand): Likewise.
7226         (aarch64_sve_mul_operand, aarch64_sve_cmp_vsc_operand): Likewise.
7227         (aarch64_sve_cmp_vsd_operand, aarch64_sve_index_operand): Likewise.
7228         (aarch64_sve_float_arith_operand): Likewise.
7229         (aarch64_sve_float_arith_with_sub_operand): Likewise.
7230         (aarch64_sve_float_mul_operand): Likewise.
7231         (aarch64_sve_vec_perm_operand): Likewise.
7232         (aarch64_pluslong_operand): Include aarch64_sve_addvl_addpl_immediate.
7233         (aarch64_mov_operand): Accept const_poly_int and const_vector.
7234         (aarch64_simd_lshift_imm, aarch64_simd_rshift_imm): Accept const
7235         as well as const_vector.
7236         (aarch64_simd_imm_zero, aarch64_simd_imm_minus_one): Move earlier
7237         in file.  Use CONST0_RTX and CONSTM1_RTX.
7238         (aarch64_simd_or_scalar_imm_zero): Likewise.  Add match_codes.
7239         (aarch64_simd_reg_or_zero): Accept const as well as const_vector.
7240         Use aarch64_simd_imm_zero.
7241         * config/aarch64/aarch64-sve.md: New file.
7242         * config/aarch64/aarch64.md: Include it.
7243         (VG_REGNUM, P0_REGNUM, P7_REGNUM, P15_REGNUM): New register numbers.
7244         (UNSPEC_REV, UNSPEC_LD1_SVE, UNSPEC_ST1_SVE, UNSPEC_MERGE_PTRUE)
7245         (UNSPEC_PTEST_PTRUE, UNSPEC_UNPACKSHI, UNSPEC_UNPACKUHI)
7246         (UNSPEC_UNPACKSLO, UNSPEC_UNPACKULO, UNSPEC_PACK)
7247         (UNSPEC_FLOAT_CONVERT, UNSPEC_WHILE_LO): New unspec constants.
7248         (sve): New attribute.
7249         (enabled): Disable instructions with the sve attribute unless
7250         TARGET_SVE.
7251         (movqi, movhi): Pass CONST_POLY_INT operaneds through
7252         aarch64_expand_mov_immediate.
7253         (*mov<mode>_aarch64, *movsi_aarch64, *movdi_aarch64): Handle
7254         CNT[BHSD] immediates.
7255         (movti): Split CONST_POLY_INT moves into two halves.
7256         (add<mode>3): Accept aarch64_pluslong_or_poly_operand.
7257         Split additions that need a temporary here if the destination
7258         is the stack pointer.
7259         (*add<mode>3_aarch64): Handle ADDVL and ADDPL immediates.
7260         (*add<mode>3_poly_1): New instruction.
7261         (set_clobber_cc): New expander.
7262
7263 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7264
7265         * simplify-rtx.c (simplify_immed_subreg): Add an inner_bytes
7266         parameter and use it instead of GET_MODE_SIZE (innermode).  Use
7267         inner_bytes * BITS_PER_UNIT instead of GET_MODE_BITSIZE (innermode).
7268         Use CEIL (inner_bytes, GET_MODE_UNIT_SIZE (innermode)) instead of
7269         GET_MODE_NUNITS (innermode).  Also add a first_elem parameter.
7270         Change innermode from fixed_mode_size to machine_mode.
7271         (simplify_subreg): Update call accordingly.  Handle a constant-sized
7272         subreg of a variable-length CONST_VECTOR.
7273
7274 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7275             Alan Hayward  <alan.hayward@arm.com>
7276             David Sherwood  <david.sherwood@arm.com>
7277
7278         * tree-ssa-address.c (mem_ref_valid_without_offset_p): New function.
7279         (add_offset_to_base): New function, split out from...
7280         (create_mem_ref): ...here.  When handling a scale other than 1,
7281         check first whether the address is valid without the offset.
7282         Add it into the base if so, leaving the index and scale as-is.
7283
7284 2018-01-12  Jakub Jelinek  <jakub@redhat.com>
7285
7286         PR c++/83778
7287         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Call
7288         fold_for_warn before checking if arg2 is INTEGER_CST.
7289
7290 2018-01-12  Segher Boessenkool  <segher@kernel.crashing.org>
7291
7292         * config/rs6000/predicates.md (load_multiple_operation): Delete.
7293         (store_multiple_operation): Delete.
7294         * config/rs6000/rs6000-cpus.def (601): Remove MASK_STRING.
7295         * config/rs6000/rs6000-protos.h (rs6000_output_load_multiple): Delete.
7296         * config/rs6000/rs6000-string.c (expand_block_move): Delete everything
7297         guarded by TARGET_STRING.
7298         (rs6000_output_load_multiple): Delete.
7299         * config/rs6000/rs6000.c (rs6000_option_override_internal): Delete
7300         OPTION_MASK_STRING / TARGET_STRING handling.
7301         (print_operand) <'N', 'O'>: Add comment that these are unused now.
7302         (const rs6000_opt_masks) <"string">: Change mask to 0.
7303         * config/rs6000/rs6000.h (TARGET_DEFAULT): Remove MASK_STRING.
7304         (MASK_STRING): Delete.
7305         * config/rs6000/rs6000.md (*mov<mode>_string): Delete TARGET_STRING
7306         parts.  Simplify.
7307         (load_multiple): Delete.
7308         (*ldmsi8): Delete.
7309         (*ldmsi7): Delete.
7310         (*ldmsi6): Delete.
7311         (*ldmsi5): Delete.
7312         (*ldmsi4): Delete.
7313         (*ldmsi3): Delete.
7314         (store_multiple): Delete.
7315         (*stmsi8): Delete.
7316         (*stmsi7): Delete.
7317         (*stmsi6): Delete.
7318         (*stmsi5): Delete.
7319         (*stmsi4): Delete.
7320         (*stmsi3): Delete.
7321         (movmemsi_8reg): Delete.
7322         (corresponding unnamed define_insn): Delete.
7323         (movmemsi_6reg): Delete.
7324         (corresponding unnamed define_insn): Delete.
7325         (movmemsi_4reg): Delete.
7326         (corresponding unnamed define_insn): Delete.
7327         (movmemsi_2reg): Delete.
7328         (corresponding unnamed define_insn): Delete.
7329         (movmemsi_1reg): Delete.
7330         (corresponding unnamed define_insn): Delete.
7331         * config/rs6000/rs6000.opt (mno-string): New.
7332         (mstring): Replace by deprecation warning stub.
7333         * doc/invoke.texi (RS/6000 and PowerPC Options): Delete -mstring.
7334
7335 2018-01-12  Jakub Jelinek  <jakub@redhat.com>
7336
7337         * regrename.c (regrename_do_replace): If replacing the same
7338         reg multiple times, try to reuse last created gen_raw_REG.
7339
7340         PR debug/81155
7341         * bb-reorder.c (pass_partition_blocks::gate): In lto don't partition
7342         main to workaround a bug in GDB.
7343
7344 2018-01-12  Tom de Vries  <tom@codesourcery.com>
7345
7346         PR target/83737
7347         * config.gcc (nvptx*-*-*): Set use_gcc_stdint=wrap.
7348
7349 2018-01-12  Vladimir Makarov  <vmakarov@redhat.com>
7350
7351         PR rtl-optimization/80481
7352         * ira-color.c (get_cap_member): New function.
7353         (allocnos_conflict_by_live_ranges_p): Use it.
7354         (slot_coalesced_allocno_live_ranges_intersect_p): Add assert.
7355         (setup_slot_coalesced_allocno_live_ranges): Ditto.
7356
7357 2018-01-12  Uros Bizjak  <ubizjak@gmail.com>
7358
7359         PR target/83628
7360         * config/alpha/alpha.md (*saddsi_1): New insn_ans_split pattern.
7361         (*saddl_se_1): Ditto.
7362         (*ssubsi_1): Ditto.
7363         (*ssubl_se_1): Ditto.
7364
7365 2018-01-12  Richard Sandiford  <richard.sandiford@linaro.org>
7366
7367         * tree-predcom.c (aff_combination_dr_offset): Use wi::to_poly_widest
7368         rather than wi::to_widest for DR_INITs.
7369         * tree-vect-data-refs.c (vect_find_same_alignment_drs): Use
7370         wi::to_poly_offset rather than wi::to_offset for DR_INIT.
7371         (vect_analyze_data_ref_accesses): Require both DR_INITs to be
7372         INTEGER_CSTs.
7373         (vect_analyze_group_access_1): Note that here.
7374
7375 2018-01-12  Richard Sandiford  <richard.sandiford@linaro.org>
7376
7377         * tree-vectorizer.c (get_vec_alignment_for_array_type): Handle
7378         polynomial type sizes.
7379
7380 2018-01-12  Richard Sandiford  <richard.sandiford@linaro.org>
7381
7382         * gimplify.c (gimple_add_tmp_var_fn): Allow variables to have a
7383         poly_uint64 size, rather than requiring an unsigned HOST_WIDE_INT size.
7384         (gimple_add_tmp_var): Likewise.
7385
7386 2018-01-12  Martin Liska  <mliska@suse.cz>
7387
7388         * gimple.c (gimple_alloc_counts): Use uint64_t instead of int.
7389         (gimple_alloc_sizes): Likewise.
7390         (dump_gimple_statistics): Use PRIu64 in printf format.
7391         * gimple.h: Change uint64_t to int.
7392
7393 2018-01-12  Martin Liska  <mliska@suse.cz>
7394
7395         * tree-core.h: Use uint64_t instead of int.
7396         * tree.c (tree_node_counts): Likewise.
7397         (tree_node_sizes): Likewise.
7398         (dump_tree_statistics): Use PRIu64 in printf format.
7399
7400 2018-01-12  Martin Liska  <mliska@suse.cz>
7401
7402         * Makefile.in: As qsort_chk is implemented in vec.c, add
7403         vec.o to linkage of gencfn-macros.
7404         * tree.c (build_new_poly_int_cst): Add CXX_MEM_STAT_INFO as it's
7405         passing the info to record_node_allocation_statistics.
7406         (test_vector_cst_patterns): Add CXX_MEM_STAT_INFO to declaration
7407         and pass the info.
7408         * ggc-common.c (struct ggc_usage): Add operator== and use
7409         it in operator< and compare function.
7410         * mem-stats.h (struct mem_usage): Likewise.
7411         * vec.c (struct vec_usage): Remove operator< and compare
7412         function. Can be simply inherited.
7413
7414 2018-01-12  Martin Jambor  <mjambor@suse.cz>
7415
7416         PR target/81616
7417         * params.def: New parameter PARAM_AVOID_FMA_MAX_BITS.
7418         * tree-ssa-math-opts.c: Include domwalk.h.
7419         (convert_mult_to_fma_1): New function.
7420         (fma_transformation_info): New type.
7421         (fma_deferring_state): Likewise.
7422         (cancel_fma_deferring): New function.
7423         (result_of_phi): Likewise.
7424         (last_fma_candidate_feeds_initial_phi): Likewise.
7425         (convert_mult_to_fma): Added deferring logic, split actual
7426         transformation to convert_mult_to_fma_1.
7427         (math_opts_dom_walker): New type.
7428         (math_opts_dom_walker::after_dom_children): New method, body moved
7429         here from pass_optimize_widening_mul::execute, added deferring logic
7430         bits.
7431         (pass_optimize_widening_mul::execute): Moved most of code to
7432         math_opts_dom_walker::after_dom_children.
7433         * config/i386/x86-tune.def (X86_TUNE_AVOID_128FMA_CHAINS): New.
7434         * config/i386/i386.c (ix86_option_override_internal): Added
7435         maybe_setting of PARAM_AVOID_FMA_MAX_BITS.
7436
7437 2018-01-12  Richard Biener  <rguenther@suse.de>
7438
7439         PR debug/83157
7440         * dwarf2out.c (gen_variable_die): Do not reset old_die for
7441         inline instance vars.
7442
7443 2018-01-12  Oleg Endo  <olegendo@gcc.gnu.org>
7444
7445         PR target/81819
7446         * config/rx/rx.c (rx_is_restricted_memory_address):
7447         Handle SUBREG case.
7448
7449 2018-01-12  Richard Biener  <rguenther@suse.de>
7450
7451         PR tree-optimization/80846
7452         * target.def (split_reduction): New target hook.
7453         * targhooks.c (default_split_reduction): New function.
7454         * targhooks.h (default_split_reduction): Declare.
7455         * tree-vect-loop.c (vect_create_epilog_for_reduction): If the
7456         target requests first reduce vectors by combining low and high
7457         parts.
7458         * tree-vect-stmts.c (vect_gen_perm_mask_any): Adjust.
7459         (get_vectype_for_scalar_type_and_size): Export.
7460         * tree-vectorizer.h (get_vectype_for_scalar_type_and_size): Declare.
7461         * doc/tm.texi.in (TARGET_VECTORIZE_SPLIT_REDUCTION): Document.
7462         * doc/tm.texi: Regenerate.
7463         * config/i386/i386.c (ix86_split_reduction): Implement
7464         TARGET_VECTORIZE_SPLIT_REDUCTION.
7465
7466 2018-01-12  Eric Botcazou  <ebotcazou@adacore.com>
7467
7468         PR target/83368
7469         * config/sparc/sparc.h (PIC_OFFSET_TABLE_REGNUM): Set to INVALID_REGNUM
7470         in PIC mode except for TARGET_VXWORKS_RTP.
7471         * config/sparc/sparc.c: Include cfgrtl.h.
7472         (TARGET_INIT_PIC_REG): Define.
7473         (TARGET_USE_PSEUDO_PIC_REG): Likewise.
7474         (sparc_pic_register_p): New predicate.
7475         (sparc_legitimate_address_p): Use it.
7476         (sparc_legitimize_pic_address): Likewise.
7477         (sparc_delegitimize_address): Likewise.
7478         (sparc_mode_dependent_address_p): Likewise.
7479         (gen_load_pcrel_sym): Remove 4th parameter.
7480         (load_got_register): Adjust call to above.  Remove obsolete stuff.
7481         (sparc_expand_prologue): Do not call load_got_register here.
7482         (sparc_flat_expand_prologue): Likewise.
7483         (sparc_output_mi_thunk): Set the pic_offset_table_rtx object.
7484         (sparc_use_pseudo_pic_reg): New function.
7485         (sparc_init_pic_reg): Likewise.
7486         * config/sparc/sparc.md (vxworks_load_got): Set the GOT register.
7487         (builtin_setjmp_receiver): Enable only for TARGET_VXWORKS_RTP.
7488
7489 2018-01-12  Christophe Lyon  <christophe.lyon@linaro.org>
7490
7491         * doc/sourcebuild.texi (Effective-Target Keywords, Other attributes):
7492         Add item for branch_cost.
7493
7494 2018-01-12  Eric Botcazou  <ebotcazou@adacore.com>
7495
7496         PR rtl-optimization/83565
7497         * rtlanal.c (nonzero_bits1): On WORD_REGISTER_OPERATIONS machines, do
7498         not extend the result to a larger mode for rotate operations.
7499         (num_sign_bit_copies1): Likewise.
7500
7501 2018-01-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
7502
7503         PR target/40411
7504         * config/sol2.h (STARTFILE_ARCH_SPEC): Don't use with -shared or
7505         -symbolic.
7506         Use values-Xc.o for -pedantic.
7507         Link with values-xpg4.o for C90, values-xpg6.o otherwise.
7508
7509 2018-01-12  Martin Liska  <mliska@suse.cz>
7510
7511         PR ipa/83054
7512         * ipa-devirt.c (final_warning_record::grow_type_warnings):
7513         New function.
7514         (possible_polymorphic_call_targets): Use it.
7515         (ipa_devirt): Likewise.
7516
7517 2018-01-12  Martin Liska  <mliska@suse.cz>
7518
7519         * profile-count.h (enum profile_quality): Use 0 as invalid
7520         enum value of profile_quality.
7521
7522 2018-01-12  Chung-Ju Wu  <jasonwucj@gmail.com>
7523
7524         * doc/invoke.texi (NDS32 Options): Add -mext-perf, -mext-perf2 and
7525         -mext-string options.
7526
7527 2018-01-12  Richard Biener  <rguenther@suse.de>
7528
7529         * lto-streamer-out.c (DFS::DFS_write_tree_body): Process
7530         DECL_DEBUG_EXPR conditional on DECL_HAS_DEBUG_EXPR_P.
7531         * tree-streamer-in.c (lto_input_ts_decl_common_tree_pointers):
7532         Likewise.
7533         * tree-streamer-out.c (write_ts_decl_common_tree_pointers): Likewise.
7534
7535 2018-01-11  Michael Meissner  <meissner@linux.vnet.ibm.com>
7536
7537         * configure.ac (--with-long-double-format): Add support for the
7538         configuration option to change the default long double format on
7539         PowerPC systems.
7540         * config.gcc (powerpc*-linux*-*): Likewise.
7541         * configure: Regenerate.
7542         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): If long
7543         double is IEEE, define __KC__ and __KF__ to allow floatn.h to be
7544         used without modification.
7545
7546 2018-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
7547
7548         * config/rs6000/rs6000-builtin.def (BU_P7_MISC_X): New #define.
7549         (SPEC_BARRIER): New instantiation of BU_P7_MISC_X.
7550         * config/rs6000/rs6000.c (rs6000_expand_builtin): Handle
7551         MISC_BUILTIN_SPEC_BARRIER.
7552         (rs6000_init_builtins): Likewise.
7553         * config/rs6000/rs6000.md (UNSPECV_SPEC_BARRIER): New UNSPECV
7554         enum value.
7555         (speculation_barrier): New define_insn.
7556         * doc/extend.texi: Document __builtin_speculation_barrier.
7557
7558 2018-01-11  Jakub Jelinek  <jakub@redhat.com>
7559
7560         PR target/83203
7561         * config/i386/i386.c (ix86_expand_vector_init_one_nonzero): If one_var
7562         is 0, for V{8,16}S[IF] and V[48]D[IF]mode use gen_vec_set<mode>_0.
7563         * config/i386/sse.md (VI8_AVX_AVX512F, VI4F_256_512): New mode
7564         iterators.
7565         (ssescalarmodesuffix): Add 512-bit vectors.  Use "d" or "q" for
7566         integral modes instead of "ss" and "sd".
7567         (vec_set<mode>_0): New define_insns for 256-bit and 512-bit
7568         vectors with 32-bit and 64-bit elements.
7569         (vecdupssescalarmodesuffix): New mode attribute.
7570         (vec_dup<mode>): Use it.
7571
7572 2018-01-11  H.J. Lu  <hongjiu.lu@intel.com>
7573
7574         PR target/83330
7575         * config/i386/i386.c (ix86_compute_frame_layout): Align stack
7576         frame if argument is passed on stack.
7577
7578 2018-01-11  Jakub Jelinek  <jakub@redhat.com>
7579
7580         PR target/82682
7581         * ree.c (combine_reaching_defs): Optimize also
7582         reg2=exp; reg1=reg2; reg2=any_extend(reg1); into
7583         reg2=any_extend(exp); reg1=reg2;, formatting fix.
7584
7585 2018-01-11  Jan Hubicka  <hubicka@ucw.cz>
7586
7587         PR middle-end/83189
7588         * gimple-ssa-isolate-paths.c (isolate_path): Fix profile update.
7589
7590 2018-01-11  Jan Hubicka  <hubicka@ucw.cz>
7591
7592         PR middle-end/83718
7593         * tree-inline.c (copy_cfg_body): Adjust num&den for scaling
7594         after they are computed.
7595
7596 2018-01-11  Bin Cheng  <bin.cheng@arm.com>
7597
7598         PR tree-optimization/83695
7599         * gimple-loop-linterchange.cc
7600         (tree_loop_interchange::interchange_loops): Call scev_reset_htab to
7601         reset cached scev information after interchange.
7602         (pass_linterchange::execute): Remove call to scev_reset_htab.
7603
7604 2018-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
7605
7606         * config/arm/arm_neon.h (vfmlal_lane_low_u32, vfmlal_lane_high_u32,
7607         vfmlalq_laneq_low_u32, vfmlalq_lane_low_u32, vfmlal_laneq_low_u32,
7608         vfmlalq_laneq_high_u32, vfmlalq_lane_high_u32, vfmlal_laneq_high_u32,
7609         vfmlsl_lane_low_u32, vfmlsl_lane_high_u32, vfmlslq_laneq_low_u32,
7610         vfmlslq_lane_low_u32, vfmlsl_laneq_low_u32, vfmlslq_laneq_high_u32,
7611         vfmlslq_lane_high_u32, vfmlsl_laneq_high_u32): Define.
7612         * config/arm/arm_neon_builtins.def (vfmal_lane_low,
7613         vfmal_lane_lowv4hf, vfmal_lane_lowv8hf, vfmal_lane_high,
7614         vfmal_lane_highv4hf, vfmal_lane_highv8hf, vfmsl_lane_low,
7615         vfmsl_lane_lowv4hf, vfmsl_lane_lowv8hf, vfmsl_lane_high,
7616         vfmsl_lane_highv4hf, vfmsl_lane_highv8hf): New sets of builtins.
7617         * config/arm/iterators.md (VFMLSEL2, vfmlsel2): New mode attributes.
7618         (V_lane_reg): Likewise.
7619         * config/arm/neon.md (neon_vfm<vfml_op>l_lane_<vfml_half><VCVTF:mode>):
7620         New define_expand.
7621         (neon_vfm<vfml_op>l_lane_<vfml_half><vfmlsel2><mode>): Likewise.
7622         (vfmal_lane_low<mode>_intrinsic,
7623         vfmal_lane_low<vfmlsel2><mode>_intrinsic,
7624         vfmal_lane_high<vfmlsel2><mode>_intrinsic,
7625         vfmal_lane_high<mode>_intrinsic, vfmsl_lane_low<mode>_intrinsic,
7626         vfmsl_lane_low<vfmlsel2><mode>_intrinsic,
7627         vfmsl_lane_high<vfmlsel2><mode>_intrinsic,
7628         vfmsl_lane_high<mode>_intrinsic): New define_insns.
7629
7630 2018-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
7631
7632         * config/arm/arm-cpus.in (fp16fml): New feature.
7633         (ALL_SIMD): Add fp16fml.
7634         (armv8.2-a): Add fp16fml as an option.
7635         (armv8.3-a): Likewise.
7636         (armv8.4-a): Add fp16fml as part of fp16.
7637         * config/arm/arm.h (TARGET_FP16FML): Define.
7638         * config/arm/arm-c.c (arm_cpu_builtins): Define __ARM_FEATURE_FP16_FML
7639         when appropriate.
7640         * config/arm/arm-modes.def (V2HF): Define.
7641         * config/arm/arm_neon.h (vfmlal_low_u32, vfmlsl_low_u32,
7642         vfmlal_high_u32, vfmlsl_high_u32, vfmlalq_low_u32,
7643         vfmlslq_low_u32, vfmlalq_high_u32, vfmlslq_high_u32): Define.
7644         * config/arm/arm_neon_builtins.def (vfmal_low, vfmal_high,
7645         vfmsl_low, vfmsl_high): New set of builtins.
7646         * config/arm/iterators.md (PLUSMINUS): New code iterator.
7647         (vfml_op): New code attribute.
7648         (VFMLHALVES): New int iterator.
7649         (VFML, VFMLSEL): New mode attributes.
7650         (V_reg): Define mapping for V2HF.
7651         (V_hi, V_lo): New mode attributes.
7652         (VF_constraint): Likewise.
7653         (vfml_half, vfml_half_selector): New int attributes.
7654         * config/arm/neon.md (neon_vfm<vfml_op>l_<vfml_half><mode>): New
7655         define_expand.
7656         (vfmal_low<mode>_intrinsic, vfmsl_high<mode>_intrinsic,
7657         vfmal_high<mode>_intrinsic, vfmsl_low<mode>_intrinsic):
7658         New define_insn.
7659         * config/arm/t-arm-elf (v8_fps): Add fp16fml.
7660         * config/arm/t-multilib (v8_2_a_simd_variants): Add fp16fml.
7661         * config/arm/unspecs.md (UNSPEC_VFML_LO, UNSPEC_VFML_HI): New unspecs.
7662         * doc/invoke.texi (ARM Options): Document fp16fml.  Update armv8.4-a
7663         documentation.
7664         * doc/sourcebuild.texi (arm_fp16fml_neon_ok, arm_fp16fml_neon):
7665         Document new effective target and option set.
7666
7667 2018-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
7668
7669         * config/arm/arm-cpus.in (armv8_4): New feature.
7670         (ARMv8_4a): New fgroup.
7671         (armv8.4-a): New arch.
7672         * config/arm/arm-tables.opt: Regenerate.
7673         * config/arm/t-aprofile: Add matching rules for -march=armv8.4-a.
7674         * config/arm/t-arm-elf (all_v8_archs): Add armv8.4-a.
7675         * config/arm/t-multilib (v8_4_a_simd_variants): New variable.
7676         Add matching rules for -march=armv8.4-a and extensions.
7677         * doc/invoke.texi (ARM Options): Document -march=armv8.4-a.
7678
7679 2018-01-11  Oleg Endo  <olegendo@gcc.gnu.org>
7680
7681         PR target/81821
7682         * config/rx/rx.md (BW): New mode attribute.
7683         (sync_lock_test_and_setsi): Add mode suffix to insn output.
7684
7685 2018-01-11  Richard Biener  <rguenther@suse.de>
7686
7687         PR tree-optimization/83435
7688         * graphite.c (canonicalize_loop_form): Ignore fake loop exit edges.
7689         * graphite-scop-detection.c (scop_detection::get_sese): Likewise.
7690         * tree-vrp.c (add_assert_info): Drop TREE_OVERFLOW if they appear.
7691
7692 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
7693             Alan Hayward  <alan.hayward@arm.com>
7694             David Sherwood  <david.sherwood@arm.com>
7695
7696         * config/aarch64/aarch64.c (aarch64_address_info): Add a const_offset
7697         field.
7698         (aarch64_classify_address): Initialize it.  Track polynomial offsets.
7699         (aarch64_print_address_internal): Use it to check for a zero offset.
7700
7701 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
7702             Alan Hayward  <alan.hayward@arm.com>
7703             David Sherwood  <david.sherwood@arm.com>
7704
7705         * config/aarch64/aarch64-modes.def (NUM_POLY_INT_COEFFS): Set to 2.
7706         * config/aarch64/aarch64-protos.h (aarch64_initial_elimination_offset):
7707         Return a poly_int64 rather than a HOST_WIDE_INT.
7708         (aarch64_offset_7bit_signed_scaled_p): Take the offset as a poly_int64
7709         rather than a HOST_WIDE_INT.
7710         * config/aarch64/aarch64.h (aarch64_frame): Protect with
7711         HAVE_POLY_INT_H rather than HOST_WIDE_INT.  Change locals_offset,
7712         hard_fp_offset, frame_size, initial_adjust, callee_offset and
7713         final_offset from HOST_WIDE_INT to poly_int64.
7714         * config/aarch64/aarch64-builtins.c (aarch64_simd_expand_args): Use
7715         to_constant when getting the number of units in an Advanced SIMD
7716         mode.
7717         (aarch64_builtin_vectorized_function): Check for a constant number
7718         of units.
7719         * config/aarch64/aarch64-simd.md (mov<mode>): Handle polynomial
7720         GET_MODE_SIZE.
7721         (aarch64_ld<VSTRUCT:nregs>_lane<VALLDIF:mode>): Use the nunits
7722         attribute instead of GET_MODE_NUNITS.
7723         * config/aarch64/aarch64.c (aarch64_hard_regno_nregs)
7724         (aarch64_class_max_nregs): Use the constant_lowest_bound of the
7725         GET_MODE_SIZE for fixed-size registers.
7726         (aarch64_const_vec_all_same_in_range_p): Use const_vec_duplicate_p.
7727         (aarch64_hard_regno_call_part_clobbered, aarch64_classify_index)
7728         (aarch64_mode_valid_for_sched_fusion_p, aarch64_classify_address)
7729         (aarch64_legitimize_address_displacement, aarch64_secondary_reload)
7730         (aarch64_print_operand, aarch64_print_address_internal)
7731         (aarch64_address_cost, aarch64_rtx_costs, aarch64_register_move_cost)
7732         (aarch64_short_vector_p, aapcs_vfp_sub_candidate)
7733         (aarch64_simd_attr_length_rglist, aarch64_operands_ok_for_ldpstp):
7734         Handle polynomial GET_MODE_SIZE.
7735         (aarch64_hard_regno_caller_save_mode): Likewise.  Return modes
7736         wider than SImode without modification.
7737         (tls_symbolic_operand_type): Use strip_offset instead of split_const.
7738         (aarch64_pass_by_reference, aarch64_layout_arg, aarch64_pad_reg_upward)
7739         (aarch64_gimplify_va_arg_expr): Assert that we don't yet handle
7740         passing and returning SVE modes.
7741         (aarch64_function_value, aarch64_layout_arg): Use gen_int_mode
7742         rather than GEN_INT.
7743         (aarch64_emit_probe_stack_range): Take the size as a poly_int64
7744         rather than a HOST_WIDE_INT, but call sorry if it isn't constant.
7745         (aarch64_allocate_and_probe_stack_space): Likewise.
7746         (aarch64_layout_frame): Cope with polynomial offsets.
7747         (aarch64_save_callee_saves, aarch64_restore_callee_saves): Take the
7748         start_offset as a poly_int64 rather than a HOST_WIDE_INT.  Track
7749         polynomial offsets.
7750         (offset_9bit_signed_unscaled_p, offset_12bit_unsigned_scaled_p)
7751         (aarch64_offset_7bit_signed_scaled_p): Take the offset as a
7752         poly_int64 rather than a HOST_WIDE_INT.
7753         (aarch64_get_separate_components, aarch64_process_components)
7754         (aarch64_expand_prologue, aarch64_expand_epilogue)
7755         (aarch64_use_return_insn_p): Handle polynomial frame offsets.
7756         (aarch64_anchor_offset): New function, split out from...
7757         (aarch64_legitimize_address): ...here.
7758         (aarch64_builtin_vectorization_cost): Handle polynomial
7759         TYPE_VECTOR_SUBPARTS.
7760         (aarch64_simd_check_vect_par_cnst_half): Handle polynomial
7761         GET_MODE_NUNITS.
7762         (aarch64_simd_make_constant, aarch64_expand_vector_init): Get the
7763         number of elements from the PARALLEL rather than the mode.
7764         (aarch64_shift_truncation_mask): Use GET_MODE_UNIT_BITSIZE
7765         rather than GET_MODE_BITSIZE.
7766         (aarch64_evpc_trn, aarch64_evpc_uzp, aarch64_evpc_ext)
7767         (aarch64_evpc_rev, aarch64_evpc_dup, aarch64_evpc_zip)
7768         (aarch64_expand_vec_perm_const_1): Handle polynomial
7769         d->perm.length () and d->perm elements.
7770         (aarch64_evpc_tbl): Likewise.  Use nelt rather than GET_MODE_NUNITS.
7771         Apply to_constant to d->perm elements.
7772         (aarch64_simd_valid_immediate, aarch64_vec_fpconst_pow_of_2): Handle
7773         polynomial CONST_VECTOR_NUNITS.
7774         (aarch64_move_pointer): Take amount as a poly_int64 rather
7775         than an int.
7776         (aarch64_progress_pointer): Avoid temporary variable.
7777         * config/aarch64/aarch64.md (aarch64_<crc_variant>): Use
7778         the mode attribute instead of GET_MODE.
7779
7780 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
7781             Alan Hayward  <alan.hayward@arm.com>
7782             David Sherwood  <david.sherwood@arm.com>
7783
7784         * config/aarch64/aarch64.c (aarch64_force_temporary): Assert that
7785         x exists before using it.
7786         (aarch64_add_constant_internal): Rename to...
7787         (aarch64_add_offset_1): ...this.  Replace regnum with separate
7788         src and dest rtxes.  Handle the case in which they're different,
7789         including when the offset is zero.  Replace scratchreg with an rtx.
7790         Use 2 additions if there is no spare register into which we can
7791         move a 16-bit constant.
7792         (aarch64_add_constant): Delete.
7793         (aarch64_add_offset): Replace reg with separate src and dest
7794         rtxes.  Take a poly_int64 offset instead of a HOST_WIDE_INT.
7795         Use aarch64_add_offset_1.
7796         (aarch64_add_sp, aarch64_sub_sp): Take the scratch register as
7797         an rtx rather than an int.  Take the delta as a poly_int64
7798         rather than a HOST_WIDE_INT.  Use aarch64_add_offset.
7799         (aarch64_expand_mov_immediate): Update uses of aarch64_add_offset.
7800         (aarch64_expand_prologue): Update calls to aarch64_sub_sp,
7801         aarch64_allocate_and_probe_stack_space and aarch64_add_offset.
7802         (aarch64_expand_epilogue): Update calls to aarch64_add_offset
7803         and aarch64_add_sp.
7804         (aarch64_output_mi_thunk): Use aarch64_add_offset rather than
7805         aarch64_add_constant.
7806
7807 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
7808
7809         * config/aarch64/aarch64.c (aarch64_reinterpret_float_as_int):
7810         Use scalar_float_mode.
7811
7812 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
7813
7814         * config/aarch64/aarch64-simd.md
7815         (aarch64_fml<f16mac1>l<f16quad>_low<mode>): Avoid GET_MODE_NUNITS.
7816         (aarch64_fml<f16mac1>l<f16quad>_high<mode>): Likewise.
7817         (aarch64_fml<f16mac1>l_lane_lowv2sf): Likewise.
7818         (aarch64_fml<f16mac1>l_lane_highv2sf): Likewise.
7819         (aarch64_fml<f16mac1>lq_laneq_lowv4sf): Likewise.
7820         (aarch64_fml<f16mac1>lq_laneq_highv4sf): Likewise.
7821         (aarch64_fml<f16mac1>l_laneq_lowv2sf): Likewise.
7822         (aarch64_fml<f16mac1>l_laneq_highv2sf): Likewise.
7823         (aarch64_fml<f16mac1>lq_lane_lowv4sf): Likewise.
7824         (aarch64_fml<f16mac1>lq_lane_highv4sf): Likewise.
7825
7826 2018-01-11  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
7827
7828         PR target/83514
7829         * config/arm/arm.c (arm_declare_function_name): Set arch_to_print if
7830         targ_options->x_arm_arch_string is non NULL.
7831
7832 2018-01-11  Tamar Christina  <tamar.christina@arm.com>
7833
7834         * config/aarch64/aarch64.h
7835         (AARCH64_FL_FOR_ARCH8_4): Add  AARCH64_FL_DOTPROD.
7836
7837 2018-01-11  Sudakshina Das  <sudi.das@arm.com>
7838
7839         PR target/82096
7840         * expmed.c (emit_store_flag_force): Swap if const op0
7841         and change VOIDmode to mode of op0.
7842
7843 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
7844
7845         PR rtl-optimization/83761
7846         * caller-save.c (replace_reg_with_saved_mem): Pass bits rather
7847         than bytes to mode_for_size.
7848
7849 2018-01-10  Jan Hubicka  <hubicka@ucw.cz>
7850
7851         PR middle-end/83189
7852         * gfortran.fortran-torture/compile/pr83189.f90: New testcase.
7853         * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Handle zero
7854         profile.
7855
7856 2018-01-10  Jan Hubicka  <hubicka@ucw.cz>
7857
7858         PR middle-end/83575
7859         * cfgrtl.c (rtl_verify_edges): Only verify fixability of partition
7860         when in layout mode.
7861         (cfg_layout_finalize): Do not verify cfg before we are out of layout.
7862         * cfgcleanup.c (try_optimize_cfg): Only verify flow info when doing
7863         partition fixup.
7864
7865 2018-01-10  Michael Collison  <michael.collison@arm.com>
7866
7867         * config/aarch64/aarch64-modes.def (V2HF): New VECTOR_MODE.
7868         * config/aarch64/aarch64-option-extension.def: Add
7869         AARCH64_OPT_EXTENSION of 'fp16fml'.
7870         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
7871         (__ARM_FEATURE_FP16_FML): Define if TARGET_F16FML is true.
7872         * config/aarch64/predicates.md (aarch64_lane_imm3): New predicate.
7873         * config/aarch64/constraints.md (Ui7): New constraint.
7874         * config/aarch64/iterators.md (VFMLA_W): New mode iterator.
7875         (VFMLA_SEL_W): Ditto.
7876         (f16quad): Ditto.
7877         (f16mac1): Ditto.
7878         (VFMLA16_LOW): New int iterator.
7879         (VFMLA16_HIGH): Ditto.
7880         (UNSPEC_FMLAL): New unspec.
7881         (UNSPEC_FMLSL): Ditto.
7882         (UNSPEC_FMLAL2): Ditto.
7883         (UNSPEC_FMLSL2): Ditto.
7884         (f16mac): New code attribute.
7885         * config/aarch64/aarch64-simd-builtins.def
7886         (aarch64_fmlal_lowv2sf): Ditto.
7887         (aarch64_fmlsl_lowv2sf): Ditto.
7888         (aarch64_fmlalq_lowv4sf): Ditto.
7889         (aarch64_fmlslq_lowv4sf): Ditto.
7890         (aarch64_fmlal_highv2sf): Ditto.
7891         (aarch64_fmlsl_highv2sf): Ditto.
7892         (aarch64_fmlalq_highv4sf): Ditto.
7893         (aarch64_fmlslq_highv4sf): Ditto.
7894         (aarch64_fmlal_lane_lowv2sf): Ditto.
7895         (aarch64_fmlsl_lane_lowv2sf): Ditto.
7896         (aarch64_fmlal_laneq_lowv2sf): Ditto.
7897         (aarch64_fmlsl_laneq_lowv2sf): Ditto.
7898         (aarch64_fmlalq_lane_lowv4sf): Ditto.
7899         (aarch64_fmlsl_lane_lowv4sf): Ditto.
7900         (aarch64_fmlalq_laneq_lowv4sf): Ditto.
7901         (aarch64_fmlsl_laneq_lowv4sf): Ditto.
7902         (aarch64_fmlal_lane_highv2sf): Ditto.
7903         (aarch64_fmlsl_lane_highv2sf): Ditto.
7904         (aarch64_fmlal_laneq_highv2sf): Ditto.
7905         (aarch64_fmlsl_laneq_highv2sf): Ditto.
7906         (aarch64_fmlalq_lane_highv4sf): Ditto.
7907         (aarch64_fmlsl_lane_highv4sf): Ditto.
7908         (aarch64_fmlalq_laneq_highv4sf): Ditto.
7909         (aarch64_fmlsl_laneq_highv4sf): Ditto.
7910         * config/aarch64/aarch64-simd.md:
7911         (aarch64_fml<f16mac1>l<f16quad>_low<mode>): New pattern.
7912         (aarch64_fml<f16mac1>l<f16quad>_high<mode>): Ditto.
7913         (aarch64_simd_fml<f16mac1>l<f16quad>_low<mode>): Ditto.
7914         (aarch64_simd_fml<f16mac1>l<f16quad>_high<mode>): Ditto.
7915         (aarch64_fml<f16mac1>l_lane_lowv2sf): Ditto.
7916         (aarch64_fml<f16mac1>l_lane_highv2sf): Ditto.
7917         (aarch64_simd_fml<f16mac>l_lane_lowv2sf): Ditto.
7918         (aarch64_simd_fml<f16mac>l_lane_highv2sf): Ditto.
7919         (aarch64_fml<f16mac1>lq_laneq_lowv4sf): Ditto.
7920         (aarch64_fml<f16mac1>lq_laneq_highv4sf): Ditto.
7921         (aarch64_simd_fml<f16mac>lq_laneq_lowv4sf): Ditto.
7922         (aarch64_simd_fml<f16mac>lq_laneq_highv4sf): Ditto.
7923         (aarch64_fml<f16mac1>l_laneq_lowv2sf): Ditto.
7924         (aarch64_fml<f16mac1>l_laneq_highv2sf): Ditto.
7925         (aarch64_simd_fml<f16mac>l_laneq_lowv2sf): Ditto.
7926         (aarch64_simd_fml<f16mac>l_laneq_highv2sf): Ditto.
7927         (aarch64_fml<f16mac1>lq_lane_lowv4sf): Ditto.
7928         (aarch64_fml<f16mac1>lq_lane_highv4sf): Ditto.
7929         (aarch64_simd_fml<f16mac>lq_lane_lowv4sf): Ditto.
7930         (aarch64_simd_fml<f16mac>lq_lane_highv4sf): Ditto.
7931         * config/aarch64/arm_neon.h (vfmlal_low_u32): New intrinsic.
7932         (vfmlsl_low_u32): Ditto.
7933         (vfmlalq_low_u32): Ditto.
7934         (vfmlslq_low_u32): Ditto.
7935         (vfmlal_high_u32): Ditto.
7936         (vfmlsl_high_u32): Ditto.
7937         (vfmlalq_high_u32): Ditto.
7938         (vfmlslq_high_u32): Ditto.
7939         (vfmlal_lane_low_u32): Ditto.
7940         (vfmlsl_lane_low_u32): Ditto.
7941         (vfmlal_laneq_low_u32): Ditto.
7942         (vfmlsl_laneq_low_u32): Ditto.
7943         (vfmlalq_lane_low_u32): Ditto.
7944         (vfmlslq_lane_low_u32): Ditto.
7945         (vfmlalq_laneq_low_u32): Ditto.
7946         (vfmlslq_laneq_low_u32): Ditto.
7947         (vfmlal_lane_high_u32): Ditto.
7948         (vfmlsl_lane_high_u32): Ditto.
7949         (vfmlal_laneq_high_u32): Ditto.
7950         (vfmlsl_laneq_high_u32): Ditto.
7951         (vfmlalq_lane_high_u32): Ditto.
7952         (vfmlslq_lane_high_u32): Ditto.
7953         (vfmlalq_laneq_high_u32): Ditto.
7954         (vfmlslq_laneq_high_u32): Ditto.
7955         * config/aarch64/aarch64.h (AARCH64_FL_F16SML): New flag.
7956         (AARCH64_FL_FOR_ARCH8_4): New.
7957         (AARCH64_ISA_F16FML): New ISA flag.
7958         (TARGET_F16FML): New feature flag for fp16fml.
7959         (doc/invoke.texi): Document new fp16fml option.
7960
7961 2018-01-10  Michael Collison  <michael.collison@arm.com>
7962
7963         * config/aarch64/aarch64-builtins.c:
7964         (aarch64_types_ternopu_imm_qualifiers, TYPES_TERNOPUI): New.
7965         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
7966         (__ARM_FEATURE_SHA3): Define if TARGET_SHA3 is true.
7967         * config/aarch64/aarch64.h (AARCH64_FL_SHA3): New flags.
7968         (AARCH64_ISA_SHA3): New ISA flag.
7969         (TARGET_SHA3): New feature flag for sha3.
7970         * config/aarch64/iterators.md (sha512_op): New int attribute.
7971         (CRYPTO_SHA512): New int iterator.
7972         (UNSPEC_SHA512H): New unspec.
7973         (UNSPEC_SHA512H2): Ditto.
7974         (UNSPEC_SHA512SU0): Ditto.
7975         (UNSPEC_SHA512SU1): Ditto.
7976         * config/aarch64/aarch64-simd-builtins.def
7977         (aarch64_crypto_sha512hqv2di): New builtin.
7978         (aarch64_crypto_sha512h2qv2di): Ditto.
7979         (aarch64_crypto_sha512su0qv2di): Ditto.
7980         (aarch64_crypto_sha512su1qv2di): Ditto.
7981         (aarch64_eor3qv8hi): Ditto.
7982         (aarch64_rax1qv2di): Ditto.
7983         (aarch64_xarqv2di): Ditto.
7984         (aarch64_bcaxqv8hi): Ditto.
7985         * config/aarch64/aarch64-simd.md:
7986         (aarch64_crypto_sha512h<sha512_op>qv2di): New pattern.
7987         (aarch64_crypto_sha512su0qv2di): Ditto.
7988         (aarch64_crypto_sha512su1qv2di): Ditto.
7989         (aarch64_eor3qv8hi): Ditto.
7990         (aarch64_rax1qv2di): Ditto.
7991         (aarch64_xarqv2di): Ditto.
7992         (aarch64_bcaxqv8hi): Ditto.
7993         * config/aarch64/arm_neon.h (vsha512hq_u64): New intrinsic.
7994         (vsha512h2q_u64): Ditto.
7995         (vsha512su0q_u64): Ditto.
7996         (vsha512su1q_u64): Ditto.
7997         (veor3q_u16): Ditto.
7998         (vrax1q_u64): Ditto.
7999         (vxarq_u64): Ditto.
8000         (vbcaxq_u16): Ditto.
8001         * config/arm/types.md (crypto_sha512): New type attribute.
8002         (crypto_sha3): Ditto.
8003         (doc/invoke.texi): Document new sha3 option.
8004
8005 2018-01-10  Michael Collison  <michael.collison@arm.com>
8006
8007         * config/aarch64/aarch64-builtins.c:
8008         (aarch64_types_quadopu_imm_qualifiers, TYPES_QUADOPUI): New.
8009         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
8010         (__ARM_FEATURE_SM3): Define if TARGET_SM4 is true.
8011         (__ARM_FEATURE_SM4): Define if TARGET_SM4 is true.
8012         * config/aarch64/aarch64.h (AARCH64_FL_SM4): New flags.
8013         (AARCH64_ISA_SM4): New ISA flag.
8014         (TARGET_SM4): New feature flag for sm4.
8015         * config/aarch64/aarch64-simd-builtins.def
8016         (aarch64_sm3ss1qv4si): Ditto.
8017         (aarch64_sm3tt1aq4si): Ditto.
8018         (aarch64_sm3tt1bq4si): Ditto.
8019         (aarch64_sm3tt2aq4si): Ditto.
8020         (aarch64_sm3tt2bq4si): Ditto.
8021         (aarch64_sm3partw1qv4si): Ditto.
8022         (aarch64_sm3partw2qv4si): Ditto.
8023         (aarch64_sm4eqv4si): Ditto.
8024         (aarch64_sm4ekeyqv4si): Ditto.
8025         * config/aarch64/aarch64-simd.md:
8026         (aarch64_sm3ss1qv4si): Ditto.
8027         (aarch64_sm3tt<sm3tt_op>qv4si): Ditto.
8028         (aarch64_sm3partw<sm3part_op>qv4si): Ditto.
8029         (aarch64_sm4eqv4si): Ditto.
8030         (aarch64_sm4ekeyqv4si): Ditto.
8031         * config/aarch64/iterators.md (sm3tt_op): New int iterator.
8032         (sm3part_op): Ditto.
8033         (CRYPTO_SM3TT): Ditto.
8034         (CRYPTO_SM3PART): Ditto.
8035         (UNSPEC_SM3SS1): New unspec.
8036         (UNSPEC_SM3TT1A): Ditto.
8037         (UNSPEC_SM3TT1B): Ditto.
8038         (UNSPEC_SM3TT2A): Ditto.
8039         (UNSPEC_SM3TT2B): Ditto.
8040         (UNSPEC_SM3PARTW1): Ditto.
8041         (UNSPEC_SM3PARTW2): Ditto.
8042         (UNSPEC_SM4E): Ditto.
8043         (UNSPEC_SM4EKEY): Ditto.
8044         * config/aarch64/constraints.md (Ui2): New constraint.
8045         * config/aarch64/predicates.md (aarch64_imm2): New predicate.
8046         * config/arm/types.md (crypto_sm3): New type attribute.
8047         (crypto_sm4): Ditto.
8048         * config/aarch64/arm_neon.h (vsm3ss1q_u32): New intrinsic.
8049         (vsm3tt1aq_u32): Ditto.
8050         (vsm3tt1bq_u32): Ditto.
8051         (vsm3tt2aq_u32): Ditto.
8052         (vsm3tt2bq_u32): Ditto.
8053         (vsm3partw1q_u32): Ditto.
8054         (vsm3partw2q_u32): Ditto.
8055         (vsm4eq_u32): Ditto.
8056         (vsm4ekeyq_u32): Ditto.
8057         (doc/invoke.texi): Document new sm4 option.
8058
8059 2018-01-10  Michael Collison  <michael.collison@arm.com>
8060
8061         * config/aarch64/aarch64-arches.def (armv8.4-a): New architecture.
8062         * config/aarch64/aarch64.h (AARCH64_ISA_V8_4): New ISA flag.
8063         (AARCH64_FL_FOR_ARCH8_4): New.
8064         (AARCH64_FL_V8_4): New flag.
8065         (doc/invoke.texi): Document new armv8.4-a option.
8066
8067 2018-01-10  Michael Collison  <michael.collison@arm.com>
8068
8069         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
8070         (__ARM_FEATURE_AES): Define if TARGET_AES is true.
8071         (__ARM_FEATURE_SHA2): Define if TARGET_SHA2 is true.
8072         * config/aarch64/aarch64-option-extension.def: Add
8073         AARCH64_OPT_EXTENSION of 'sha2'.
8074         (aes): Add AARCH64_OPT_EXTENSION of 'aes'.
8075         (crypto): Disable sha2 and aes if crypto disabled.
8076         (crypto): Enable aes and sha2 if enabled.
8077         (simd): Disable sha2 and aes if simd disabled.
8078         * config/aarch64/aarch64.h (AARCH64_FL_AES, AARCH64_FL_SHA2):
8079         New flags.
8080         (AARCH64_ISA_AES, AARCH64_ISA_SHA2): New ISA flags.
8081         (TARGET_SHA2): New feature flag for sha2.
8082         (TARGET_AES): New feature flag for aes.
8083         * config/aarch64/aarch64-simd.md:
8084         (aarch64_crypto_aes<aes_op>v16qi): Make pattern
8085         conditional on TARGET_AES.
8086         (aarch64_crypto_aes<aesmc_op>v16qi): Ditto.
8087         (aarch64_crypto_sha1hsi): Make pattern conditional
8088         on TARGET_SHA2.
8089         (aarch64_crypto_sha1hv4si): Ditto.
8090         (aarch64_be_crypto_sha1hv4si): Ditto.
8091         (aarch64_crypto_sha1su1v4si): Ditto.
8092         (aarch64_crypto_sha1<sha1_op>v4si): Ditto.
8093         (aarch64_crypto_sha1su0v4si): Ditto.
8094         (aarch64_crypto_sha256h<sha256_op>v4si): Ditto.
8095         (aarch64_crypto_sha256su0v4si): Ditto.
8096         (aarch64_crypto_sha256su1v4si): Ditto.
8097         (doc/invoke.texi): Document new aes and sha2 options.
8098
8099 2018-01-10  Martin Sebor  <msebor@redhat.com>
8100
8101         PR tree-optimization/83781
8102         * gimple-fold.c (get_range_strlen): Avoid treating arrays of pointers
8103         as string arrays.
8104
8105 2018-01-11  Martin Sebor  <msebor@gmail.com>
8106             Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
8107
8108         PR tree-optimization/83501
8109         PR tree-optimization/81703
8110
8111         * tree-ssa-strlen.c (get_string_cst): Rename...
8112         (get_string_len): ...to this.  Handle global constants.
8113         (handle_char_store): Adjust.
8114
8115 2018-01-10  Kito Cheng  <kito.cheng@gmail.com>
8116             Jim Wilson  <jimw@sifive.com>
8117
8118         * config/riscv/riscv-protos.h (riscv_output_return): New.
8119         * config/riscv/riscv.c (struct machine_function): New naked_p field.
8120         (riscv_attribute_table, riscv_output_return),
8121         (riscv_handle_fndecl_attribute, riscv_naked_function_p),
8122         (riscv_allocate_stack_slots_for_args, riscv_warn_func_return): New.
8123         (riscv_compute_frame_info): Only compute frame->mask if not a naked
8124         function.
8125         (riscv_expand_prologue): Add early return for naked function.
8126         (riscv_expand_epilogue): Likewise.
8127         (riscv_function_ok_for_sibcall): Return false for naked function.
8128         (riscv_set_current_function): New.
8129         (TARGET_SET_CURRENT_FUNCTION, TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS),
8130         (TARGET_ATTRIBUTE_TABLE, TARGET_WARN_FUNC_RETURN): New.
8131         * config/riscv/riscv.md (simple_return): Call riscv_output_return.
8132         * doc/extend.texi (RISC-V Function Attributes): New.
8133
8134 2018-01-10  Michael Meissner  <meissner@linux.vnet.ibm.com>
8135
8136         * config/rs6000/rs6000.c (is_complex_IBM_long_double): Explicitly
8137         check for 128-bit long double before checking TCmode.
8138         * config/rs6000/rs6000.h (FLOAT128_IEEE_P): Explicitly check for
8139         128-bit long doubles before checking TFmode or TCmode.
8140         (FLOAT128_IBM_P): Likewise.
8141
8142 2018-01-10  Martin Sebor  <msebor@redhat.com>
8143
8144         PR tree-optimization/83671
8145         * builtins.c (c_strlen): Unconditionally return zero for the empty
8146         string.
8147         Use -Warray-bounds for warnings.
8148         * gimple-fold.c (get_range_strlen): Handle non-constant lengths
8149         for non-constant array indices with COMPONENT_REF, arrays of
8150         arrays, and pointers to arrays.
8151         (gimple_fold_builtin_strlen): Determine and set length range for
8152         non-constant character arrays.
8153
8154 2018-01-10  Aldy Hernandez  <aldyh@redhat.com>
8155
8156         PR middle-end/81897
8157         * tree-ssa-uninit.c (convert_control_dep_chain_into_preds): Skip
8158         empty blocks.
8159
8160 2018-01-10  Eric Botcazou  <ebotcazou@adacore.com>
8161
8162         * dwarf2out.c (dwarf2out_var_location): Do not pass NULL to fprintf.
8163
8164 2018-01-10  Peter Bergner  <bergner@vnet.ibm.com>
8165
8166         PR target/83399
8167         * config/rs6000/rs6000.c (print_operand) <'y'>: Use
8168         VECTOR_MEM_ALTIVEC_OR_VSX_P.
8169         * config/rs6000/vsx.md (*vsx_le_perm_load_<mode> for VSX_D): Use
8170         indexed_or_indirect_operand predicate.
8171         (*vsx_le_perm_load_<mode> for VSX_W): Likewise.
8172         (*vsx_le_perm_load_v8hi): Likewise.
8173         (*vsx_le_perm_load_v16qi): Likewise.
8174         (*vsx_le_perm_store_<mode> for VSX_D): Likewise.
8175         (*vsx_le_perm_store_<mode> for VSX_W): Likewise.
8176         (*vsx_le_perm_store_v8hi): Likewise.
8177         (*vsx_le_perm_store_v16qi): Likewise.
8178         (eight unnamed splitters): Likewise.
8179
8180 2018-01-10  Peter Bergner  <bergner@vnet.ibm.com>
8181
8182         * config/rs6000/x86intrin.h: Change #warning to #error. Update message.
8183         * config/rs6000/emmintrin.h: Likewise.
8184         * config/rs6000/mmintrin.h: Likewise.
8185         * config/rs6000/xmmintrin.h: Likewise.
8186
8187 2018-01-10  David Malcolm  <dmalcolm@redhat.com>
8188
8189         PR c++/43486
8190         * tree-core.h: Document EXPR_LOCATION_WRAPPER_P's usage of
8191         "public_flag".
8192         * tree.c (tree_nop_conversion): Return true for location wrapper
8193         nodes.
8194         (maybe_wrap_with_location): New function.
8195         (selftest::check_strip_nops): New function.
8196         (selftest::test_location_wrappers): New function.
8197         (selftest::tree_c_tests): Call it.
8198         * tree.h (STRIP_ANY_LOCATION_WRAPPER): New macro.
8199         (maybe_wrap_with_location): New decl.
8200         (EXPR_LOCATION_WRAPPER_P): New macro.
8201         (location_wrapper_p): New inline function.
8202         (tree_strip_any_location_wrapper): New inline function.
8203
8204 2018-01-10  H.J. Lu  <hongjiu.lu@intel.com>
8205
8206         PR target/83735
8207         * config/i386/i386.c (ix86_compute_frame_layout): Always adjust
8208         stack_realign_offset for the largest alignment of stack slot
8209         actually used.
8210         (ix86_find_max_used_stack_alignment): New function.
8211         (ix86_finalize_stack_frame_flags): Use it.  Set
8212         max_used_stack_alignment if we don't realign stack.
8213         * config/i386/i386.h (machine_function): Add
8214         max_used_stack_alignment.
8215
8216 2018-01-10  Christophe Lyon  <christophe.lyon@linaro.org>
8217
8218         * config/arm/arm.opt (-mbranch-cost): New option.
8219         * config/arm/arm.h (BRANCH_COST): Take arm_branch_cost into
8220         account.
8221
8222 2018-01-10  Segher Boessenkool  <segher@kernel.crashing.org>
8223
8224         PR target/83629
8225         * config/rs6000/rs6000.md (load_toc_v4_PIC_2, load_toc_v4_PIC_3b,
8226         load_toc_v4_PIC_3c): Wrap const term in CONST RTL.
8227
8228 2018-01-10  Richard Biener  <rguenther@suse.de>
8229
8230         PR debug/83765
8231         * dwarf2out.c (gen_subprogram_die): Hoist old_die && declaration
8232         early out so it also covers the case where we have a non-NULL
8233         origin.
8234
8235 2018-01-10  Richard Sandiford  <richard.sandiford@linaro.org>
8236
8237         PR tree-optimization/83753
8238         * tree-vect-stmts.c (get_group_load_store_type): Use VMAT_CONTIGUOUS
8239         for non-strided grouped accesses if the number of elements is 1.
8240
8241 2018-01-10  Jan Hubicka  <hubicka@ucw.cz>
8242
8243         PR target/81616
8244         * i386.c (ix86_vectorize_builtin_gather): Check TARGET_USE_GATHER.
8245         * i386.h (TARGET_USE_GATHER): Define.
8246         * x86-tune.def (X86_TUNE_USE_GATHER): New.
8247
8248 2018-01-10  Martin Liska  <mliska@suse.cz>
8249
8250         PR bootstrap/82831
8251         * basic-block.h (CLEANUP_NO_PARTITIONING): New define.
8252         * bb-reorder.c (pass_reorder_blocks::execute): Do not clean up
8253         partitioning.
8254         * cfgcleanup.c (try_optimize_cfg): Fix up partitioning if
8255         CLEANUP_NO_PARTITIONING is not set.
8256
8257 2018-01-10  Richard Sandiford  <richard.sandiford@linaro.org>
8258
8259         * doc/rtl.texi: Remove documentation of (const ...) wrappers
8260         for vectors, as a partial revert of r254296.
8261         * rtl.h (const_vec_p): Delete.
8262         (const_vec_duplicate_p): Don't test for vector CONSTs.
8263         (unwrap_const_vec_duplicate, const_vec_series_p): Likewise.
8264         * expmed.c (make_tree): Likewise.
8265
8266         Revert:
8267         * common.md (E, F): Use CONSTANT_P instead of checking for
8268         CONST_VECTOR.
8269         * emit-rtl.c (gen_lowpart_common): Use const_vec_p instead of
8270         checking for CONST_VECTOR.
8271
8272 2018-01-09  Jan Hubicka  <hubicka@ucw.cz>
8273
8274         PR middle-end/83575
8275         * predict.c (force_edge_cold): Handle in more sane way edges
8276         with no prediction.
8277
8278 2018-01-09  Carl Love  <cel@us.ibm.com>
8279
8280         * config/rs6002/altivec.md (p8_vmrgow): Add support for V2DI, V2DF,
8281         V4SI, V4SF types.
8282         (p8_vmrgew): Add support for V2DI, V2DF, V4SF types.
8283         * config/rs6000/rs6000-builtin.def: Add definitions for FLOAT2_V2DF,
8284         VMRGEW_V2DI, VMRGEW_V2DF, VMRGEW_V4SF, VMRGOW_V4SI, VMRGOW_V4SF,
8285         VMRGOW_V2DI, VMRGOW_V2DF.  Remove definition for VMRGOW.
8286         * config/rs6000/rs6000-c.c (VSX_BUILTIN_VEC_FLOAT2,
8287         P8V_BUILTIN_VEC_VMRGEW, P8V_BUILTIN_VEC_VMRGOW):  Add definitions.
8288         * config/rs6000/rs6000-protos.h: Add extern defition for
8289         rs6000_generate_float2_double_code.
8290         * config/rs6000/rs6000.c (rs6000_generate_float2_double_code): Add
8291         function.
8292         * config/rs6000/vsx.md (vsx_xvcdpsp): Add define_insn.
8293         (float2_v2df): Add define_expand.
8294
8295 2018-01-09  Uros Bizjak  <ubizjak@gmail.com>
8296
8297         PR target/83628
8298         * combine.c (force_int_to_mode) <case ASHIFT>: Use mode instead of
8299         op_mode in the force_to_mode call.
8300
8301 2018-01-09  Richard Sandiford  <richard.sandiford@linaro.org>
8302
8303         * config/aarch64/aarch64.c (aarch64_evpc_trn): Use d.perm.series_p
8304         instead of checking each element individually.
8305         (aarch64_evpc_uzp): Likewise.
8306         (aarch64_evpc_zip): Likewise.
8307         (aarch64_evpc_ext): Likewise.
8308         (aarch64_evpc_rev): Likewise.
8309         (aarch64_evpc_dup): Test the encoding for a single duplicated element,
8310         instead of checking each element individually.  Return true without
8311         generating rtl if
8312         (aarch64_vectorize_vec_perm_const): Use all_from_input_p to test
8313         whether all selected elements come from the same input, instead of
8314         checking each element individually.  Remove calls to gen_rtx_REG,
8315         start_sequence and end_sequence and instead assert that no rtl is
8316         generated.
8317
8318 2018-01-09  Richard Sandiford  <richard.sandiford@linaro.org>
8319
8320         * config/aarch64/aarch64.c (aarch64_legitimate_constant_p): Fix
8321         order of HIGH and CONST checks.
8322
8323 2018-01-09  Richard Sandiford  <richard.sandiford@linaro.org>
8324
8325         * tree-vect-stmts.c (permute_vec_elements): Create a fresh variable
8326         if the destination isn't an SSA_NAME.
8327
8328 2018-01-09  Richard Biener  <rguenther@suse.de>
8329
8330         PR tree-optimization/83668
8331         * graphite.c (canonicalize_loop_closed_ssa): Add edge argument,
8332         move prologue...
8333         (canonicalize_loop_form): ... here, renamed from ...
8334         (canonicalize_loop_closed_ssa_form): ... this and amended to
8335         swap successor edges for loop exit blocks to make us use
8336         the RPO order we need for initial schedule generation.
8337
8338 2018-01-09  Joseph Myers  <joseph@codesourcery.com>
8339
8340         PR tree-optimization/64811
8341         * match.pd: When optimizing comparisons with Inf, avoid
8342         introducing or losing exceptions from comparisons with NaN.
8343
8344 2018-01-09  Martin Liska  <mliska@suse.cz>
8345
8346         PR sanitizer/82517
8347         * asan.c (shadow_mem_size): Add gcc_assert.
8348
8349 2018-01-09  Georg-Johann Lay  <avr@gjlay.de>
8350
8351         Don't save registers in main().
8352
8353         PR target/83738
8354         * doc/invoke.texi (AVR Options) [-mmain-is-OS_task]: Document it.
8355         * config/avr/avr.opt (-mmain-is-OS_task): New target option.
8356         * config/avr/avr.c (avr_set_current_function): Don't error if
8357         naked, OS_task or OS_main are specified at the same time.
8358         (avr_function_ok_for_sibcall): Don't disable sibcalls for OS_task,
8359         OS_main.
8360         (avr_insert_attributes) [-mmain-is-OS_task] <main>: Add OS_task
8361         attribute.
8362         * common/config/avr/avr-common.c (avr_option_optimization_table):
8363         Switch on -mmain-is-OS_task for optimizing compilations.
8364
8365 2018-01-09  Richard Biener  <rguenther@suse.de>
8366
8367         PR tree-optimization/83572
8368         * graphite.c: Include cfganal.h.
8369         (graphite_transform_loops): Connect infinite loops to exit
8370         and remove fake edges at the end.
8371
8372 2018-01-09  Jan Hubicka  <hubicka@ucw.cz>
8373
8374         * ipa-inline.c (edge_badness): Revert accidental checkin.
8375
8376 2018-01-09  Jan Hubicka  <hubicka@ucw.cz>
8377
8378         PR ipa/80763
8379         * ipa-comdats.c (set_comdat_group): Only set comdat group of real
8380         symbols; not inline clones.
8381
8382 2018-01-09  Jakub Jelinek  <jakub@redhat.com>
8383
8384         PR target/83507
8385         * modulo-sched.c (schedule_reg_moves): Punt if we'd need to move
8386         hard registers.  Formatting fixes.
8387
8388         PR preprocessor/83722
8389         * gcc.c (try_generate_repro): Pass
8390         &temp_stderr_files[RETRY_ICE_ATTEMPTS - 1] rather than
8391         &temp_stdout_files[RETRY_ICE_ATTEMPTS - 1] as last argument to
8392         do_report_bug.
8393
8394 2018-01-08  Monk Chiang  <sh.chiang04@gmail.com>
8395             Kito Cheng  <kito.cheng@gmail.com>
8396
8397         * config/riscv/riscv.c (machine_function::is_leaf): Remove field.
8398         (riscv_leaf_function_p): Delete.
8399         (riscv_function_ok_for_sibcall): Return false when TARGET_SAVE_RESTORE.
8400
8401 2018-01-08  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
8402
8403         * config/rs6000/rs6000-string.c (do_load_for_compare_from_addr): New
8404         function.
8405         (do_ifelse): New function.
8406         (do_isel): New function.
8407         (do_sub3): New function.
8408         (do_add3): New function.
8409         (do_load_mask_compare): New function.
8410         (do_overlap_load_compare): New function.
8411         (expand_compare_loop): New function.
8412         (expand_block_compare): Call expand_compare_loop() when appropriate.
8413         * config/rs6000/rs6000.opt (-mblock-compare-inline-limit): Change
8414         option description.
8415         (-mblock-compare-inline-loop-limit): New option.
8416
8417 2018-01-08  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
8418
8419         PR target/83677
8420         * config/rs6000/altivec.md (*altivec_vpermr_<mode>_internal):
8421         Reverse order of second and third operands in first alternative.
8422         * config/rs6000/rs6000.c (rs6000_expand_vector_set): Reverse order
8423         of first and second elements in UNSPEC_VPERMR vector.
8424         (altivec_expand_vec_perm_le): Likewise.
8425
8426 2018-01-08  Jeff Law  <law@redhat.com>
8427
8428         PR rtl-optimizatin/81308
8429         * tree-switch-conversion.c (cfg_altered): New file scoped static.
8430         (process_switch): If group_case_labels makes a change, then set
8431         cfg_altered.
8432         (pass_convert_switch::execute): If a switch is converted, then
8433         set cfg_altered.  Return TODO_cfg_cleanup if cfg_altered is true.
8434
8435         PR rtl-optimization/81308
8436         * recog.c (split_all_insns): Conditionally cleanup the CFG after
8437         splitting insns.
8438
8439 2018-01-08  Vidya Praveen  <vidyapraveen@arm.com>
8440
8441         PR target/83663 - Revert r255946
8442         * config/aarch64/aarch64.c (aarch64_expand_vector_init): Modify code
8443         generation for cases where splatting a value is not useful.
8444         * simplify-rtx.c (simplify_ternary_operation): Simplify vec_merge
8445         across a vec_duplicate and a paradoxical subreg forming a vector
8446         mode to a vec_concat.
8447
8448 2018-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
8449
8450         * config/arm/t-aprofile (MULTILIB_MATCHES): Add mapping rules for
8451         -march=armv8.3-a variants.
8452         * config/arm/t-multilib: Likewise.
8453         * config/arm/t-arm-elf: Likewise.  Handle dotprod extension.
8454
8455 2018-01-08  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
8456
8457         * config/rs6000/rs6000.md (cceq_ior_compare): Remove * so I can use it
8458         to generate rtl.
8459         (cceq_ior_compare_complement): Give it a name so I can use it, and
8460         change boolean_or_operator predicate to boolean_operator so it can
8461         be used to generate a crand.
8462         (eqne): New code iterator.
8463         (bd/bd_neg): New code_attrs.
8464         (<bd>_<mode>): New name for ctr<mode>_internal[12] now combined into
8465         a single define_insn.
8466         (<bd>tf_<mode>): A new insn pattern for the conditional form branch
8467         decrement (bdnzt/bdnzf/bdzt/bdzf).
8468         * config/rs6000/rs6000.c (rs6000_legitimate_combined_insn): Updated
8469         with the new names of the branch decrement patterns, and added the
8470         names of the branch decrement conditional patterns.
8471
8472 2018-01-08  Richard Biener  <rguenther@suse.de>
8473
8474         PR tree-optimization/83563
8475         * graphite.c (canonicalize_loop_closed_ssa_form): Reset the SCEV
8476         cache.
8477
8478 2018-01-08  Richard Biener  <rguenther@suse.de>
8479
8480         PR middle-end/83713
8481         * convert.c (do_narrow): Properly guard TYPE_OVERFLOW_WRAPS checks.
8482
8483 2018-01-08  Richard Biener  <rguenther@suse.de>
8484
8485         PR tree-optimization/83685
8486         * tree-ssa-pre.c (create_expression_by_pieces): Do not insert
8487         references to abnormals.
8488
8489 2018-01-08  Richard Biener  <rguenther@suse.de>
8490
8491         PR lto/83719
8492         * dwarf2out.c (output_indirect_strings): Handle empty
8493         skeleton_debug_str_hash.
8494         (dwarf2out_early_finish): Index strings for -gsplit-dwarf.
8495
8496 2018-01-08  Claudiu Zissulescu  <claziss@synopsys.com>
8497
8498         * config/arc/arc.c (TARGET_TRAMPOLINE_ADJUST_ADDRESS): Delete.
8499         (emit_store_direct): Likewise.
8500         (arc_trampoline_adjust_address): Likewise.
8501         (arc_asm_trampoline_template): New function.
8502         (arc_initialize_trampoline): Use asm_trampoline_template.
8503         (TARGET_ASM_TRAMPOLINE_TEMPLATE): Define.
8504         * config/arc/arc.h (TRAMPOLINE_SIZE): Adjust to 16.
8505         * config/arc/arc.md (flush_icache): Delete pattern.
8506
8507 2018-01-08  Claudiu Zissulescu  <claziss@synopsys.com>
8508
8509         * config/arc/arc-c.def (__ARC_UNALIGNED__): New define.
8510         * config/arc/arc.h (STRICT_ALIGNMENT): Control this macro using
8511         munaligned-access.
8512
8513 2018-01-08  Sebastian Huber  <sebastian.huber@embedded-brains.de>
8514
8515         PR target/83681
8516         * config/epiphany/epiphany.h (make_pass_mode_switch_use): Guard
8517         by not USED_FOR_TARGET.
8518         (make_pass_resolve_sw_modes): Likewise.
8519
8520 2018-01-08  Sebastian Huber  <sebastian.huber@embedded-brains.de>
8521
8522         * config/nios2/nios2.h (nios2_section_threshold): Guard by not
8523         USED_FOR_TARGET.
8524
8525 2018-01-08  Richard Biener  <rguenther@suse.de>
8526
8527         PR middle-end/83580
8528         * tree-data-ref.c (split_constant_offset): Remove STRIP_NOPS.
8529
8530 2018-01-08  Richard Biener  <rguenther@suse.de>
8531
8532         PR middle-end/83517
8533         * match.pd ((t * 2) / 2) -> t): Add missing :c.
8534
8535 2018-01-06  Aldy Hernandez  <aldyh@redhat.com>
8536
8537         PR middle-end/81897
8538         * tree-ssa-uninit.c (compute_control_dep_chain): Do not bail on
8539         basic blocks with a small number of successors.
8540         (convert_control_dep_chain_into_preds): Improve handling of
8541         forwarder blocks.
8542         (dump_predicates): Split apart into...
8543         (dump_pred_chain): ...here...
8544         (dump_pred_info): ...and here.
8545         (can_one_predicate_be_invalidated_p): Add debugging printfs.
8546         (can_chain_union_be_invalidated_p): Improve check for invalidation
8547         of paths.
8548         (uninit_uses_cannot_happen): Avoid unnecessary if
8549         convert_control_dep_chain_into_preds yielded nothing.
8550
8551 2018-01-06  Martin Sebor  <msebor@redhat.com>
8552
8553         PR tree-optimization/83640
8554         * gimple-ssa-warn-restrict.c (builtin_access::builtin_access): Avoid
8555         subtracting negative offset from size.
8556         (builtin_access::overlap): Adjust offset bounds of the access to fall
8557         within the size of the object if possible.
8558
8559 2018-01-06  Richard Sandiford  <richard.sandiford@linaro.org>
8560
8561         PR rtl-optimization/83699
8562         * expmed.c (extract_bit_field_1): Restrict the vector usage of
8563         extract_bit_field_as_subreg to cases in which the extracted
8564         value is also a vector.
8565
8566         * lra-constraints.c (process_alt_operands): Test for the equivalence
8567         substitutions when detecting a possible reload cycle.
8568
8569 2018-01-06  Jakub Jelinek  <jakub@redhat.com>
8570
8571         PR debug/83480
8572         * toplev.c (process_options): Don't enable debug_nonbind_markers_p
8573         by default if flag_selective_schedling{,2}.  Formatting fixes.
8574
8575         PR rtl-optimization/83682
8576         * rtl.h (const_vec_duplicate_p): Only return true for VEC_DUPLICATE
8577         if it has non-VECTOR_MODE element mode.
8578         (vec_duplicate_p): Likewise.
8579
8580         PR middle-end/83694
8581         * cfgexpand.c (expand_debug_expr): Punt if mode1 is VOIDmode
8582         and bitsize might be greater than MAX_BITSIZE_MODE_ANY_INT.
8583
8584 2018-01-05  Jakub Jelinek  <jakub@redhat.com>
8585
8586         PR target/83604
8587         * config/i386/i386-builtin.def
8588         (__builtin_ia32_vgf2p8affineinvqb_v64qi,
8589         __builtin_ia32_vgf2p8affineqb_v64qi, __builtin_ia32_vgf2p8mulb_v64qi):
8590         Require also OPTION_MASK_ISA_AVX512F in addition to
8591         OPTION_MASK_ISA_GFNI.
8592         (__builtin_ia32_vgf2p8affineinvqb_v16qi_mask,
8593         __builtin_ia32_vgf2p8affineqb_v16qi_mask): Require
8594         OPTION_MASK_ISA_AVX512VL instead of OPTION_MASK_ISA_SSE in addition
8595         to OPTION_MASK_ISA_GFNI.
8596         (__builtin_ia32_vgf2p8mulb_v32qi_mask): Require
8597         OPTION_MASK_ISA_AVX512VL in addition to OPTION_MASK_ISA_GFNI and
8598         OPTION_MASK_ISA_AVX512BW.
8599         (__builtin_ia32_vgf2p8mulb_v16qi_mask): Require
8600         OPTION_MASK_ISA_AVX512VL instead of OPTION_MASK_ISA_AVX512BW in
8601         addition to OPTION_MASK_ISA_GFNI.
8602         (__builtin_ia32_vgf2p8affineinvqb_v16qi,
8603         __builtin_ia32_vgf2p8affineqb_v16qi, __builtin_ia32_vgf2p8mulb_v16qi):
8604         Require OPTION_MASK_ISA_SSE2 instead of OPTION_MASK_ISA_SSE in addition
8605         to OPTION_MASK_ISA_GFNI.
8606         * config/i386/i386.c (def_builtin): Change to builtin isa/isa2 being
8607         a requirement for all ISAs rather than any of them with a few
8608         exceptions.
8609         (ix86_add_new_builtins): Clear OPTION_MASK_ISA_64BIT from isa before
8610         processing.
8611         (ix86_expand_builtin): Require all ISAs from builtin's isa and isa2
8612         bitmasks to be enabled with 3 exceptions, instead of requiring any
8613         enabled ISA with lots of exceptions.
8614         * config/i386/sse.md (vgf2p8affineinvqb_<mode><mask_name>,
8615         vgf2p8affineqb_<mode><mask_name>, vgf2p8mulb_<mode><mask_name>):
8616         Change avx512bw in isa attribute to avx512f.
8617         * config/i386/sgxintrin.h: Add license boilerplate.
8618         * config/i386/vaesintrin.h: Likewise.  Fix macro spelling __AVX512F
8619         to __AVX512F__ and __AVX512VL to __AVX512VL__.
8620         (_mm256_aesdec_epi128, _mm256_aesdeclast_epi128, _mm256_aesenc_epi128,
8621         _mm256_aesenclast_epi128): Enable temporarily avx if __AVX__ is not
8622         defined.
8623         * config/i386/gfniintrin.h (_mm_gf2p8mul_epi8,
8624         _mm_gf2p8affineinv_epi64_epi8, _mm_gf2p8affine_epi64_epi8): Enable
8625         temporarily sse2 rather than sse if not enabled already.
8626
8627         PR target/83604
8628         * config/i386/sse.md (VI248_VLBW): Rename to ...
8629         (VI248_AVX512VL): ... this.  Don't guard V32HI with TARGET_AVX512BW.
8630         (vpshrd_<mode><mask_name>, vpshld_<mode><mask_name>,
8631         vpshrdv_<mode>, vpshrdv_<mode>_mask, vpshrdv_<mode>_maskz,
8632         vpshrdv_<mode>_maskz_1, vpshldv_<mode>, vpshldv_<mode>_mask,
8633         vpshldv_<mode>_maskz, vpshldv_<mode>_maskz_1): Use VI248_AVX512VL
8634         mode iterator instead of VI248_VLBW.
8635
8636 2018-01-05  Jan Hubicka  <hubicka@ucw.cz>
8637
8638         * ipa-fnsummary.c (record_modified_bb_info): Add OP.
8639         (record_modified): Skip clobbers; add debug output.
8640         (param_change_prob): Use sreal frequencies.
8641
8642 2018-01-05  Richard Sandiford  <richard.sandiford@linaro.org>
8643
8644         * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Don't
8645         punt for user-aligned variables.
8646
8647 2018-01-05  Richard Sandiford  <richard.sandiford@linaro.org>
8648
8649         * tree-chrec.c (chrec_contains_symbols): Return true for
8650         POLY_INT_CST.
8651
8652 2018-01-05  Sudakshina Das  <sudi.das@arm.com>
8653
8654         PR target/82439
8655         * simplify-rtx.c (simplify_relational_operation_1): Add simplifications
8656         of (x|y) == x for BICS pattern.
8657
8658 2018-01-05  Jakub Jelinek  <jakub@redhat.com>
8659
8660         PR tree-optimization/83605
8661         * gimple-ssa-strength-reduction.c: Include tree-eh.h.
8662         (find_candidates_dom_walker::before_dom_children): Ignore stmts that
8663         can throw.
8664
8665 2018-01-05  Sebastian Huber  <sebastian.huber@embedded-brains.de>
8666
8667         * config.gcc (epiphany-*-elf*): Add (epiphany-*-rtems*) configuration.
8668         * config/epiphany/rtems.h: New file.
8669
8670 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
8671             Uros Bizjak  <ubizjak@gmail.com>
8672
8673         PR target/83554
8674         * config/i386/i386.md (*<rotate_insn>hi3_1 splitter): Use
8675         QIreg_operand instead of register_operand predicate.
8676         * config/i386/i386.c (ix86_rop_should_change_byte_p,
8677         set_rop_modrm_reg_bits, ix86_mitigate_rop): Use -mmitigate-rop in
8678         comments instead of -fmitigate[-_]rop.
8679
8680 2018-01-04  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
8681
8682         PR bootstrap/81926
8683         * cgraphunit.c (symbol_table::compile): Switch to text_section
8684         before calling assembly_start debug hook.
8685         * run-rtl-passes.c (run_rtl_passes): Likewise.
8686         Include output.h.
8687
8688 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
8689
8690         * tree-vrp.c (extract_range_from_binary_expr_1): Check
8691         range_int_cst_p rather than !symbolic_range_p before calling
8692         extract_range_from_multiplicative_op_1.
8693
8694 2018-01-04  Jeff Law  <law@redhat.com>
8695
8696         * tree-ssa-math-opts.c (execute_cse_reciprocals_1): Remove
8697         redundant test in assertion.
8698
8699 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
8700
8701         * doc/rtl.texi: Document machine_mode wrapper classes.
8702
8703 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
8704
8705         * fold-const.c (fold_ternary_loc): Check tree_fits_uhwi_p before
8706         using tree_to_uhwi.
8707
8708 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
8709
8710         * tree-ssa-forwprop.c (is_combined_permutation_identity): Allow
8711         the VEC_PERM_EXPR fold to fail.
8712
8713 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
8714
8715         PR debug/83585
8716         * bb-reorder.c (insert_section_boundary_note): Set has_bb_partition
8717         to switched_sections.
8718
8719 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
8720
8721         PR target/83680
8722         * config/arm/arm.c (arm_vectorize_vec_perm_const): Fix inverted
8723         test for d.testing.
8724
8725 2018-01-04  Peter Bergner  <bergner@vnet.ibm.com>
8726
8727         PR target/83387
8728         * config/rs6000/rs6000.c (rs6000_discover_homogeneous_aggregate): Do not
8729         allow arguments in FP registers if TARGET_HARD_FLOAT is false.
8730
8731 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
8732
8733         PR debug/83666
8734         * cfgexpand.c (expand_debug_expr) <case BIT_FIELD_REF>: Punt if mode
8735         is BLKmode and bitpos not zero or mode change is needed.
8736
8737 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
8738
8739         PR target/83675
8740         * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): Require
8741         TARGET_VIS2.
8742
8743 2018-01-04  Uros Bizjak  <ubizjak@gmail.com>
8744
8745         PR target/83628
8746         * config/alpha/alpha.md (*sadd<modesuffix>): Use ASHIFT
8747         instead of MULT rtx.  Update all corresponding splitters.
8748         (*saddl_se): Ditto.
8749         (*ssub<modesuffix>): Ditto.
8750         (*ssubl_se): Ditto.
8751         (*cmp_sadd_di): Update split patterns.
8752         (*cmp_sadd_si): Ditto.
8753         (*cmp_sadd_sidi): Ditto.
8754         (*cmp_ssub_di): Ditto.
8755         (*cmp_ssub_si): Ditto.
8756         (*cmp_ssub_sidi): Ditto.
8757         * config/alpha/predicates.md (const23_operand): New predicate.
8758         * config/alpha/alpha.c (alpha_rtx_costs) [PLUS, MINUS]:
8759         Look for ASHIFT, not MULT inner operand.
8760         (alpha_split_conditional_move): Update for *sadd<modesuffix> change.
8761
8762 2018-01-04  Martin Liska  <mliska@suse.cz>
8763
8764         PR gcov-profile/83669
8765         * gcov.c (output_intermediate_file): Add version to intermediate
8766         gcov file.
8767         * doc/gcov.texi: Document new field 'version' in intermediate
8768         file format. Fix location of '-k' option of gcov command.
8769
8770 2018-01-04  Martin Liska  <mliska@suse.cz>
8771
8772         PR ipa/82352
8773         * ipa-icf.c (sem_function::merge): Do not cross comdat boundary.
8774
8775 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
8776
8777         * gimple-ssa-sprintf.c (parse_directive): Cast second dir.len to uhwi.
8778
8779 2018-01-03  Martin Sebor  <msebor@redhat.com>
8780
8781         PR tree-optimization/83655
8782         * gimple-ssa-warn-restrict.c (wrestrict_dom_walker::check_call): Avoid
8783         checking calls with invalid arguments.
8784
8785 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
8786
8787         * tree-vect-stmts.c (vect_get_store_rhs): New function.
8788         (vectorizable_mask_load_store): Delete.
8789         (vectorizable_call): Return false for masked loads and stores.
8790         (vectorizable_store): Handle IFN_MASK_STORE.  Use vect_get_store_rhs
8791         instead of gimple_assign_rhs1.
8792         (vectorizable_load): Handle IFN_MASK_LOAD.
8793         (vect_transform_stmt): Don't set is_store for call_vec_info_type.
8794
8795 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
8796
8797         * tree-vect-stmts.c (vect_build_gather_load_calls): New function,
8798         split out from..,
8799         (vectorizable_mask_load_store): ...here.
8800         (vectorizable_load): ...and here.
8801
8802 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
8803
8804         * tree-vect-stmts.c (vect_build_all_ones_mask)
8805         (vect_build_zero_merge_argument): New functions, split out from...
8806         (vectorizable_load): ...here.
8807
8808 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
8809
8810         * tree-vect-stmts.c (vect_check_store_rhs): New function,
8811         split out from...
8812         (vectorizable_mask_load_store): ...here.
8813         (vectorizable_store): ...and here.
8814
8815 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
8816
8817         * tree-vect-stmts.c (vect_check_load_store_mask): New function,
8818         split out from...
8819         (vectorizable_mask_load_store): ...here.
8820
8821 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
8822
8823         * tree-vectorizer.h (vec_load_store_type): Moved from tree-vec-stmts.c
8824         (vect_model_store_cost): Take a vec_load_store_type instead of a
8825         vect_def_type.
8826         * tree-vect-stmts.c (vec_load_store_type): Move to tree-vectorizer.h.
8827         (vect_model_store_cost): Take a vec_load_store_type instead of a
8828         vect_def_type.
8829         (vectorizable_mask_load_store): Update accordingly.
8830         (vectorizable_store): Likewise.
8831         * tree-vect-slp.c (vect_analyze_slp_cost_1): Update accordingly.
8832
8833 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
8834
8835         * tree-vect-loop.c (vect_transform_loop): Stub out scalar
8836         IFN_MASK_LOAD calls here rather than...
8837         * tree-vect-stmts.c (vectorizable_mask_load_store): ...here.
8838
8839 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
8840             Alan Hayward  <alan.hayward@arm.com>
8841             David Sherwood  <david.sherwood@arm.com>
8842
8843         * expmed.c (extract_bit_field_1): For vector extracts,
8844         fall back to extract_bit_field_as_subreg if vec_extract
8845         isn't available.
8846
8847 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
8848             Alan Hayward  <alan.hayward@arm.com>
8849             David Sherwood  <david.sherwood@arm.com>
8850
8851         * lra-spills.c (pseudo_reg_slot_compare): Sort slots by whether
8852         they are variable or constant sized.
8853         (assign_stack_slot_num_and_sort_pseudos): Don't reuse variable-sized
8854         slots for constant-sized data.
8855
8856 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
8857             Alan Hayward  <alan.hayward@arm.com>
8858             David Sherwood  <david.sherwood@arm.com>
8859
8860         * tree-vect-patterns.c (vect_recog_mask_conversion_pattern): When
8861         handling COND_EXPRs with boolean comparisons, try to find a better
8862         basis for the mask type than the boolean itself.
8863
8864 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
8865
8866         * doc/rtl.texi (MAX_BITSIZE_MODE_ANY_MODE): Describe how the default
8867         is calculated and how it can be overridden.
8868         * genmodes.c (max_bitsize_mode_any_mode): New variable.
8869         (create_modes): Initialize it from MAX_BITSIZE_MODE_ANY_MODE,
8870         if defined.
8871         (emit_max_int): Use it to set the output MAX_BITSIZE_MODE_ANY_MODE,
8872         if nonzero.
8873
8874 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
8875             Alan Hayward  <alan.hayward@arm.com>
8876             David Sherwood  <david.sherwood@arm.com>
8877
8878         * config/aarch64/aarch64-protos.h (aarch64_output_simd_mov_immediate):
8879         Remove the mode argument.
8880         (aarch64_simd_valid_immediate): Remove the mode and inverse
8881         arguments.
8882         * config/aarch64/iterators.md (bitsize): New iterator.
8883         * config/aarch64/aarch64-simd.md (*aarch64_simd_mov<mode>, and<mode>3)
8884         (ior<mode>3): Update calls to aarch64_output_simd_mov_immediate.
8885         * config/aarch64/constraints.md (Do, Db, Dn): Update calls to
8886         aarch64_simd_valid_immediate.
8887         * config/aarch64/predicates.md (aarch64_reg_or_orr_imm): Likewise.
8888         (aarch64_reg_or_bic_imm): Likewise.
8889         * config/aarch64/aarch64.c (simd_immediate_info): Replace mvn
8890         with an insn_type enum and msl with a modifier_type enum.
8891         Replace element_width with a scalar_mode.  Change the shift
8892         to unsigned int.  Add constructors for scalar_float_mode and
8893         scalar_int_mode elements.
8894         (aarch64_vect_float_const_representable_p): Delete.
8895         (aarch64_can_const_movi_rtx_p)
8896         (aarch64_simd_scalar_immediate_valid_for_move)
8897         (aarch64_simd_make_constant): Update call to
8898         aarch64_simd_valid_immediate.
8899         (aarch64_advsimd_valid_immediate_hs): New function.
8900         (aarch64_advsimd_valid_immediate): Likewise.
8901         (aarch64_simd_valid_immediate): Remove mode and inverse
8902         arguments.  Rewrite to use the above.  Use const_vec_duplicate_p
8903         to detect duplicated constants and use aarch64_float_const_zero_rtx_p
8904         and aarch64_float_const_representable_p on the result.
8905         (aarch64_output_simd_mov_immediate): Remove mode argument.
8906         Update call to aarch64_simd_valid_immediate and use of
8907         simd_immediate_info.
8908         (aarch64_output_scalar_simd_mov_immediate): Update call
8909         accordingly.
8910
8911 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
8912             Alan Hayward  <alan.hayward@arm.com>
8913             David Sherwood  <david.sherwood@arm.com>
8914
8915         * machmode.h (mode_precision): Prefix with CONST_MODE_PRECISION.
8916         (mode_nunits): Likewise CONST_MODE_NUNITS.
8917         * machmode.def (ADJUST_NUNITS): Document.
8918         * genmodes.c (mode_data::need_nunits_adj): New field.
8919         (blank_mode): Update accordingly.
8920         (adj_nunits): New variable.
8921         (print_maybe_const_decl): Replace CATEGORY with a NEEDS_ADJ
8922         parameter.
8923         (emit_mode_size_inline): Set need_bytesize_adj for all modes
8924         listed in adj_nunits.
8925         (emit_mode_nunits_inline): Set need_nunits_adj for all modes
8926         listed in adj_nunits.  Don't emit case statements for such modes.
8927         (emit_insn_modes_h): Emit definitions of CONST_MODE_NUNITS
8928         and CONST_MODE_PRECISION.  Make CONST_MODE_SIZE expand to
8929         nothing if adj_nunits is nonnull.
8930         (emit_mode_precision, emit_mode_nunits): Use print_maybe_const_decl.
8931         (emit_mode_unit_size, emit_mode_base_align, emit_mode_ibit)
8932         (emit_mode_fbit): Update use of print_maybe_const_decl.
8933         (emit_move_size): Likewise.  Treat the array as non-const
8934         if adj_nunits.
8935         (emit_mode_adjustments): Handle adj_nunits.
8936
8937 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
8938
8939         * machmode.def (VECTOR_MODES_WITH_PREFIX): Document.
8940         * genmodes.c (VECTOR_MODES_WITH_PREFIX): New macro.
8941         (VECTOR_MODES): Use it.
8942         (make_vector_modes): Take the prefix as an argument.
8943
8944 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
8945             Alan Hayward  <alan.hayward@arm.com>
8946             David Sherwood  <david.sherwood@arm.com>
8947
8948         * mode-classes.def (MODE_VECTOR_BOOL): New mode class.
8949         * machmode.h (INTEGRAL_MODE_P, VECTOR_MODE_P): Return true
8950         for MODE_VECTOR_BOOL.
8951         * machmode.def (VECTOR_BOOL_MODE): Document.
8952         * genmodes.c (VECTOR_BOOL_MODE): New macro.
8953         (make_vector_bool_mode): New function.
8954         (complete_mode, emit_mode_wider, emit_mode_adjustments): Handle
8955         MODE_VECTOR_BOOL.
8956         * lto-streamer-in.c (lto_input_mode_table): Likewise.
8957         * rtx-vector-builder.c (rtx_vector_builder::find_cached_value):
8958         Likewise.
8959         * stor-layout.c (int_mode_for_mode): Likewise.
8960         * tree.c (build_vector_type_for_mode): Likewise.
8961         * varasm.c (output_constant_pool_2): Likewise.
8962         * emit-rtl.c (init_emit_once): Make sure that CONST1_RTX (BImode) and
8963         CONSTM1_RTX (BImode) are the same thing.  Initialize const_tiny_rtx
8964         for MODE_VECTOR_BOOL.
8965         * expr.c (expand_expr_real_1): Use VECTOR_MODE_P instead of a list
8966         of mode class checks.
8967         * tree-vect-generic.c (expand_vector_operation): Use VECTOR_MODE_P
8968         instead of a list of mode class checks.
8969         (expand_vector_scalar_condition): Likewise.
8970         (type_for_widest_vector_mode): Handle BImode as an inner mode.
8971
8972 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
8973             Alan Hayward  <alan.hayward@arm.com>
8974             David Sherwood  <david.sherwood@arm.com>
8975
8976         * machmode.h (mode_size): Change from unsigned short to
8977         poly_uint16_pod.
8978         (mode_to_bytes): Return a poly_uint16 rather than an unsigned short.
8979         (GET_MODE_SIZE): Return a constant if ONLY_FIXED_SIZE_MODES,
8980         or if measurement_type is not polynomial.
8981         (fixed_size_mode::includes_p): Check for constant-sized modes.
8982         * genmodes.c (emit_mode_size_inline): Make mode_size_inline
8983         return a poly_uint16 rather than an unsigned short.
8984         (emit_mode_size): Change the type of mode_size from unsigned short
8985         to poly_uint16_pod.  Use ZERO_COEFFS for the initializer.
8986         (emit_mode_adjustments): Cope with polynomial vector sizes.
8987         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
8988         for GET_MODE_SIZE.
8989         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
8990         for GET_MODE_SIZE.
8991         * auto-inc-dec.c (try_merge): Treat GET_MODE_SIZE as polynomial.
8992         * builtins.c (expand_ifn_atomic_compare_exchange_into_call): Likewise.
8993         * caller-save.c (setup_save_areas): Likewise.
8994         (replace_reg_with_saved_mem): Likewise.
8995         * calls.c (emit_library_call_value_1): Likewise.
8996         * combine-stack-adj.c (combine_stack_adjustments_for_block): Likewise.
8997         * combine.c (simplify_set, make_extraction, simplify_shift_const_1)
8998         (gen_lowpart_for_combine): Likewise.
8999         * convert.c (convert_to_integer_1): Likewise.
9000         * cse.c (equiv_constant, cse_insn): Likewise.
9001         * cselib.c (autoinc_split, cselib_hash_rtx): Likewise.
9002         (cselib_subst_to_values): Likewise.
9003         * dce.c (word_dce_process_block): Likewise.
9004         * df-problems.c (df_word_lr_mark_ref): Likewise.
9005         * dwarf2cfi.c (init_one_dwarf_reg_size): Likewise.
9006         * dwarf2out.c (multiple_reg_loc_descriptor, mem_loc_descriptor)
9007         (concat_loc_descriptor, concatn_loc_descriptor, loc_descriptor)
9008         (rtl_for_decl_location): Likewise.
9009         * emit-rtl.c (gen_highpart, widen_memory_access): Likewise.
9010         * expmed.c (extract_bit_field_1, extract_integral_bit_field): Likewise.
9011         * expr.c (emit_group_load_1, clear_storage_hints): Likewise.
9012         (emit_move_complex, emit_move_multi_word, emit_push_insn): Likewise.
9013         (expand_expr_real_1): Likewise.
9014         * function.c (assign_parm_setup_block_p, assign_parm_setup_block)
9015         (pad_below): Likewise.
9016         * gimple-fold.c (optimize_atomic_compare_exchange_p): Likewise.
9017         * gimple-ssa-store-merging.c (rhs_valid_for_store_merging_p): Likewise.
9018         * ira.c (get_subreg_tracking_sizes): Likewise.
9019         * ira-build.c (ira_create_allocno_objects): Likewise.
9020         * ira-color.c (coalesced_pseudo_reg_slot_compare): Likewise.
9021         (ira_sort_regnos_for_alter_reg): Likewise.
9022         * ira-costs.c (record_operand_costs): Likewise.
9023         * lower-subreg.c (interesting_mode_p, simplify_gen_subreg_concatn)
9024         (resolve_simple_move): Likewise.
9025         * lra-constraints.c (get_reload_reg, operands_match_p): Likewise.
9026         (process_addr_reg, simplify_operand_subreg, curr_insn_transform)
9027         (lra_constraints): Likewise.
9028         (CONST_POOL_OK_P): Reject variable-sized modes.
9029         * lra-spills.c (slot, assign_mem_slot, pseudo_reg_slot_compare)
9030         (add_pseudo_to_slot, lra_spill): Likewise.
9031         * omp-low.c (omp_clause_aligned_alignment): Likewise.
9032         * optabs-query.c (get_best_extraction_insn): Likewise.
9033         * optabs-tree.c (expand_vec_cond_expr_p): Likewise.
9034         * optabs.c (expand_vec_perm_var, expand_vec_cond_expr): Likewise.
9035         (expand_mult_highpart, valid_multiword_target_p): Likewise.
9036         * recog.c (offsettable_address_addr_space_p): Likewise.
9037         * regcprop.c (maybe_mode_change): Likewise.
9038         * reginfo.c (choose_hard_reg_mode, record_subregs_of_mode): Likewise.
9039         * regrename.c (build_def_use): Likewise.
9040         * regstat.c (dump_reg_info): Likewise.
9041         * reload.c (complex_word_subreg_p, push_reload, find_dummy_reload)
9042         (find_reloads, find_reloads_subreg_address): Likewise.
9043         * reload1.c (eliminate_regs_1): Likewise.
9044         * rtlanal.c (for_each_inc_dec_find_inc_dec, rtx_cost): Likewise.
9045         * simplify-rtx.c (avoid_constant_pool_reference): Likewise.
9046         (simplify_binary_operation_1, simplify_subreg): Likewise.
9047         * targhooks.c (default_function_arg_padding): Likewise.
9048         (default_hard_regno_nregs, default_class_max_nregs): Likewise.
9049         * tree-cfg.c (verify_gimple_assign_binary): Likewise.
9050         (verify_gimple_assign_ternary): Likewise.
9051         * tree-inline.c (estimate_move_cost): Likewise.
9052         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
9053         * tree-ssa-loop-ivopts.c (add_autoinc_candidates): Likewise.
9054         (get_address_cost_ainc): Likewise.
9055         * tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Likewise.
9056         (vect_supportable_dr_alignment): Likewise.
9057         * tree-vect-loop.c (vect_determine_vectorization_factor): Likewise.
9058         (vectorizable_reduction): Likewise.
9059         * tree-vect-stmts.c (vectorizable_assignment, vectorizable_shift)
9060         (vectorizable_operation, vectorizable_load): Likewise.
9061         * tree.c (build_same_sized_truth_vector_type): Likewise.
9062         * valtrack.c (cleanup_auto_inc_dec): Likewise.
9063         * var-tracking.c (emit_note_insn_var_location): Likewise.
9064         * config/arc/arc.h (ASM_OUTPUT_CASE_END): Use as_a <scalar_int_mode>.
9065         (ADDR_VEC_ALIGN): Likewise.
9066
9067 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9068             Alan Hayward  <alan.hayward@arm.com>
9069             David Sherwood  <david.sherwood@arm.com>
9070
9071         * machmode.h (mode_to_bits): Return a poly_uint16 rather than an
9072         unsigned short.
9073         (GET_MODE_BITSIZE): Return a constant if ONLY_FIXED_SIZE_MODES,
9074         or if measurement_type is polynomial.
9075         * calls.c (shift_return_value): Treat GET_MODE_BITSIZE as polynomial.
9076         * combine.c (make_extraction): Likewise.
9077         * dse.c (find_shift_sequence): Likewise.
9078         * dwarf2out.c (mem_loc_descriptor): Likewise.
9079         * expmed.c (store_integral_bit_field, extract_bit_field_1): Likewise.
9080         (extract_bit_field, extract_low_bits): Likewise.
9081         * expr.c (convert_move, convert_modes, emit_move_insn_1): Likewise.
9082         (optimize_bitfield_assignment_op, expand_assignment): Likewise.
9083         (store_expr_with_bounds, store_field, expand_expr_real_1): Likewise.
9084         * fold-const.c (optimize_bit_field_compare, merge_ranges): Likewise.
9085         * gimple-fold.c (optimize_atomic_compare_exchange_p): Likewise.
9086         * reload.c (find_reloads): Likewise.
9087         * reload1.c (alter_reg): Likewise.
9088         * stor-layout.c (bitwise_mode_for_mode, compute_record_mode): Likewise.
9089         * targhooks.c (default_secondary_memory_needed_mode): Likewise.
9090         * tree-if-conv.c (predicate_mem_writes): Likewise.
9091         * tree-ssa-strlen.c (handle_builtin_memcmp): Likewise.
9092         * tree-vect-patterns.c (adjust_bool_pattern): Likewise.
9093         * tree-vect-stmts.c (vectorizable_simd_clone_call): Likewise.
9094         * valtrack.c (dead_debug_insert_temp): Likewise.
9095         * varasm.c (mergeable_constant_section): Likewise.
9096         * config/sh/sh.h (LOCAL_ALIGNMENT): Use as_a <fixed_size_mode>.
9097
9098 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9099             Alan Hayward  <alan.hayward@arm.com>
9100             David Sherwood  <david.sherwood@arm.com>
9101
9102         * expr.c (expand_assignment): Cope with polynomial mode sizes
9103         when assigning to a CONCAT.
9104
9105 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9106             Alan Hayward  <alan.hayward@arm.com>
9107             David Sherwood  <david.sherwood@arm.com>
9108
9109         * machmode.h (mode_precision): Change from unsigned short to
9110         poly_uint16_pod.
9111         (mode_to_precision): Return a poly_uint16 rather than an unsigned
9112         short.
9113         (GET_MODE_PRECISION): Return a constant if ONLY_FIXED_SIZE_MODES,
9114         or if measurement_type is not polynomial.
9115         (HWI_COMPUTABLE_MODE_P): Turn into a function.  Optimize the case
9116         in which the mode is already known to be a scalar_int_mode.
9117         * genmodes.c (emit_mode_precision): Change the type of mode_precision
9118         from unsigned short to poly_uint16_pod.  Use ZERO_COEFFS for the
9119         initializer.
9120         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
9121         for GET_MODE_PRECISION.
9122         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
9123         for GET_MODE_PRECISION.
9124         * combine.c (update_rsp_from_reg_equal): Treat GET_MODE_PRECISION
9125         as polynomial.
9126         (try_combine, find_split_point, combine_simplify_rtx): Likewise.
9127         (expand_field_assignment, make_extraction): Likewise.
9128         (make_compound_operation_int, record_dead_and_set_regs_1): Likewise.
9129         (get_last_value): Likewise.
9130         * convert.c (convert_to_integer_1): Likewise.
9131         * cse.c (cse_insn): Likewise.
9132         * expr.c (expand_expr_real_1): Likewise.
9133         * lra-constraints.c (simplify_operand_subreg): Likewise.
9134         * optabs-query.c (can_atomic_load_p): Likewise.
9135         * optabs.c (expand_atomic_load): Likewise.
9136         (expand_atomic_store): Likewise.
9137         * ree.c (combine_reaching_defs): Likewise.
9138         * rtl.h (partial_subreg_p, paradoxical_subreg_p): Likewise.
9139         * rtlanal.c (nonzero_bits1, lsb_bitfield_op_p): Likewise.
9140         * tree.h (type_has_mode_precision_p): Likewise.
9141         * ubsan.c (instrument_si_overflow): Likewise.
9142
9143 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9144             Alan Hayward  <alan.hayward@arm.com>
9145             David Sherwood  <david.sherwood@arm.com>
9146
9147         * tree.h (TYPE_VECTOR_SUBPARTS): Turn into a function and handle
9148         polynomial numbers of units.
9149         (SET_TYPE_VECTOR_SUBPARTS): Likewise.
9150         (valid_vector_subparts_p): New function.
9151         (build_vector_type): Remove temporary shim and take the number
9152         of units as a poly_uint64 rather than an int.
9153         (build_opaque_vector_type): Take the number of units as a
9154         poly_uint64 rather than an int.
9155         * tree.c (build_vector_from_ctor): Handle polynomial
9156         TYPE_VECTOR_SUBPARTS.
9157         (type_hash_canon_hash, type_cache_hasher::equal): Likewise.
9158         (uniform_vector_p, vector_type_mode, build_vector): Likewise.
9159         (build_vector_from_val): If the number of units is variable,
9160         use build_vec_duplicate_cst for constant operands and
9161         VEC_DUPLICATE_EXPR otherwise.
9162         (make_vector_type): Remove temporary is_constant ().
9163         (build_vector_type, build_opaque_vector_type): Take the number of
9164         units as a poly_uint64 rather than an int.
9165         (check_vector_cst): Handle polynomial TYPE_VECTOR_SUBPARTS and
9166         VECTOR_CST_NELTS.
9167         * cfgexpand.c (expand_debug_expr): Likewise.
9168         * expr.c (count_type_elements, categorize_ctor_elements_1): Likewise.
9169         (store_constructor, expand_expr_real_1): Likewise.
9170         (const_scalar_mask_from_tree): Likewise.
9171         * fold-const-call.c (fold_const_reduction): Likewise.
9172         * fold-const.c (const_binop, const_unop, fold_convert_const): Likewise.
9173         (operand_equal_p, fold_vec_perm, fold_ternary_loc): Likewise.
9174         (native_encode_vector, vec_cst_ctor_to_array): Likewise.
9175         (fold_relational_const): Likewise.
9176         (native_interpret_vector): Likewise.  Change the size from an
9177         int to an unsigned int.
9178         * gimple-fold.c (gimple_fold_stmt_to_constant_1): Handle polynomial
9179         TYPE_VECTOR_SUBPARTS.
9180         (gimple_fold_indirect_ref, gimple_build_vector): Likewise.
9181         (gimple_build_vector_from_val): Use VEC_DUPLICATE_EXPR when
9182         duplicating a non-constant operand into a variable-length vector.
9183         * hsa-brig.c (hsa_op_immed::emit_to_buffer): Handle polynomial
9184         TYPE_VECTOR_SUBPARTS and VECTOR_CST_NELTS.
9185         * ipa-icf.c (sem_variable::equals): Likewise.
9186         * match.pd: Likewise.
9187         * omp-simd-clone.c (simd_clone_subparts): Likewise.
9188         * print-tree.c (print_node): Likewise.
9189         * stor-layout.c (layout_type): Likewise.
9190         * targhooks.c (default_builtin_vectorization_cost): Likewise.
9191         * tree-cfg.c (verify_gimple_comparison): Likewise.
9192         (verify_gimple_assign_binary): Likewise.
9193         (verify_gimple_assign_ternary): Likewise.
9194         (verify_gimple_assign_single): Likewise.
9195         * tree-pretty-print.c (dump_generic_node): Likewise.
9196         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
9197         (simplify_bitfield_ref, is_combined_permutation_identity): Likewise.
9198         * tree-vect-data-refs.c (vect_permute_store_chain): Likewise.
9199         (vect_grouped_load_supported, vect_permute_load_chain): Likewise.
9200         (vect_shift_permute_load_chain): Likewise.
9201         * tree-vect-generic.c (nunits_for_known_piecewise_op): Likewise.
9202         (expand_vector_condition, optimize_vector_constructor): Likewise.
9203         (lower_vec_perm, get_compute_type): Likewise.
9204         * tree-vect-loop.c (vect_determine_vectorization_factor): Likewise.
9205         (get_initial_defs_for_reduction, vect_transform_loop): Likewise.
9206         * tree-vect-patterns.c (vect_recog_bool_pattern): Likewise.
9207         (vect_recog_mask_conversion_pattern): Likewise.
9208         * tree-vect-slp.c (vect_supported_load_permutation_p): Likewise.
9209         (vect_get_constant_vectors, vect_transform_slp_perm_load): Likewise.
9210         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
9211         (get_group_load_store_type, vectorizable_mask_load_store): Likewise.
9212         (vectorizable_bswap, simd_clone_subparts, vectorizable_assignment)
9213         (vectorizable_shift, vectorizable_operation, vectorizable_store)
9214         (vectorizable_load, vect_is_simple_cond, vectorizable_comparison)
9215         (supportable_widening_operation): Likewise.
9216         (supportable_narrowing_operation): Likewise.
9217         * tree-vector-builder.c (tree_vector_builder::binary_encoded_nelts):
9218         Likewise.
9219         * varasm.c (output_constant): Likewise.
9220
9221 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9222             Alan Hayward  <alan.hayward@arm.com>
9223             David Sherwood  <david.sherwood@arm.com>
9224
9225         * tree-vect-data-refs.c (vect_permute_store_chain): Reorganize
9226         so that both the length == 3 and length != 3 cases set up their
9227         own permute vectors.  Add comments explaining why we know the
9228         number of elements is constant.
9229         (vect_permute_load_chain): Likewise.
9230
9231 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9232             Alan Hayward  <alan.hayward@arm.com>
9233             David Sherwood  <david.sherwood@arm.com>
9234
9235         * machmode.h (mode_nunits): Change from unsigned char to
9236         poly_uint16_pod.
9237         (ONLY_FIXED_SIZE_MODES): New macro.
9238         (pod_mode::measurement_type, scalar_int_mode::measurement_type)
9239         (scalar_float_mode::measurement_type, scalar_mode::measurement_type)
9240         (complex_mode::measurement_type, fixed_size_mode::measurement_type):
9241         New typedefs.
9242         (mode_to_nunits): Return a poly_uint16 rather than an unsigned short.
9243         (GET_MODE_NUNITS): Return a constant if ONLY_FIXED_SIZE_MODES,
9244         or if measurement_type is not polynomial.
9245         * genmodes.c (ZERO_COEFFS): New macro.
9246         (emit_mode_nunits_inline): Make mode_nunits_inline return a
9247         poly_uint16.
9248         (emit_mode_nunits): Change the type of mode_nunits to poly_uint16_pod.
9249         Use ZERO_COEFFS when emitting initializers.
9250         * data-streamer.h (bp_pack_poly_value): New function.
9251         (bp_unpack_poly_value): Likewise.
9252         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
9253         for GET_MODE_NUNITS.
9254         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
9255         for GET_MODE_NUNITS.
9256         * tree.c (make_vector_type): Remove temporary shim and make
9257         the real function take the number of units as a poly_uint64
9258         rather than an int.
9259         (build_vector_type_for_mode): Handle polynomial nunits.
9260         * dwarf2out.c (loc_descriptor, add_const_value_attribute): Likewise.
9261         * emit-rtl.c (const_vec_series_p_1): Likewise.
9262         (gen_rtx_CONST_VECTOR): Likewise.
9263         * fold-const.c (test_vec_duplicate_folding): Likewise.
9264         * genrecog.c (validate_pattern): Likewise.
9265         * optabs-query.c (can_vec_perm_var_p, can_mult_highpart_p): Likewise.
9266         * optabs-tree.c (expand_vec_cond_expr_p): Likewise.
9267         * optabs.c (expand_vector_broadcast, expand_binop_directly): Likewise.
9268         (shift_amt_for_vec_perm_mask, expand_vec_perm_var): Likewise.
9269         (expand_vec_cond_expr, expand_mult_highpart): Likewise.
9270         * rtlanal.c (subreg_get_info): Likewise.
9271         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
9272         (vect_grouped_load_supported): Likewise.
9273         * tree-vect-generic.c (type_for_widest_vector_mode): Likewise.
9274         * tree-vect-loop.c (have_whole_vector_shift): Likewise.
9275         * simplify-rtx.c (simplify_unary_operation_1): Likewise.
9276         (simplify_const_unary_operation, simplify_binary_operation_1)
9277         (simplify_const_binary_operation, simplify_ternary_operation)
9278         (test_vector_ops_duplicate, test_vector_ops): Likewise.
9279         (simplify_immed_subreg): Use GET_MODE_NUNITS on a fixed_size_mode
9280         instead of CONST_VECTOR_NUNITS.
9281         * varasm.c (output_constant_pool_2): Likewise.
9282         * rtx-vector-builder.c (rtx_vector_builder::build): Only include the
9283         explicit-encoded elements in the XVEC for variable-length vectors.
9284
9285 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9286
9287         * lra-constraints.c (curr_insn_transform): Use partial_subreg_p.
9288
9289 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9290             Alan Hayward  <alan.hayward@arm.com>
9291             David Sherwood  <david.sherwood@arm.com>
9292
9293         * coretypes.h (fixed_size_mode): Declare.
9294         (fixed_size_mode_pod): New typedef.
9295         * builtins.h (target_builtins::x_apply_args_mode)
9296         (target_builtins::x_apply_result_mode): Change type to
9297         fixed_size_mode_pod.
9298         * builtins.c (apply_args_size, apply_result_size, result_vector)
9299         (expand_builtin_apply_args_1, expand_builtin_apply)
9300         (expand_builtin_return): Update accordingly.
9301
9302 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9303
9304         * cse.c (hash_rtx_cb): Hash only the encoded elements.
9305         * cselib.c (cselib_hash_rtx): Likewise.
9306         * expmed.c (make_tree): Build VECTOR_CSTs directly from the
9307         CONST_VECTOR encoding.
9308
9309 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
9310             Jeff Law  <law@redhat.com>
9311
9312         PR target/83641
9313         * config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): For
9314         noreturn probe, use gen_pop instead of ix86_emit_restore_reg_using_pop,
9315         only set RTX_FRAME_RELATED_P on both the push and pop if cfa_reg is sp
9316         and add REG_CFA_ADJUST_CFA notes in that case to both insns.
9317
9318         PR target/83641
9319         * config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): Do not
9320         explicitly probe *sp in a noreturn function if there were any callee
9321         register saves or frame pointer is needed.
9322
9323 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
9324
9325         PR debug/83621
9326         * cfgexpand.c (expand_debug_expr): Return NULL if mode is
9327         BLKmode for ternary, binary or unary expressions.
9328
9329         PR debug/83645
9330         * var-tracking.c (delete_vta_debug_insn): New inline function.
9331         (delete_vta_debug_insns): Add USE_CFG argument, if true, walk just
9332         insns from get_insns () to NULL instead of each bb separately.
9333         Use delete_vta_debug_insn.  No longer static.
9334         (vt_debug_insns_local, variable_tracking_main_1): Adjust
9335         delete_vta_debug_insns callers.
9336         * rtl.h (delete_vta_debug_insns): Declare.
9337         * final.c (rest_of_handle_final): Call delete_vta_debug_insns
9338         instead of variable_tracking_main.
9339
9340 2018-01-03  Martin Sebor  <msebor@redhat.com>
9341
9342         PR tree-optimization/83603
9343         * calls.c (maybe_warn_nonstring_arg): Avoid accessing function
9344         arguments past the endof the argument list in functions declared
9345         without a prototype.
9346         * gimple-ssa-warn-restrict.c (wrestrict_dom_walker::check_call):
9347         Avoid checking when arguments are null.
9348
9349 2018-01-03  Martin Sebor  <msebor@redhat.com>
9350
9351         PR c/83559
9352         * doc/extend.texi (attribute const): Fix a typo.
9353         * ipa-pure-const.c ((warn_function_const, warn_function_pure): Avoid
9354         issuing -Wsuggest-attribute for void functions.
9355
9356 2018-01-03  Martin Sebor  <msebor@redhat.com>
9357
9358         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Use
9359         offset_int::from instead of wide_int::to_shwi.
9360         (maybe_diag_overlap): Remove assertion.
9361         Use HOST_WIDE_INT_PRINT_DEC instead of %lli.
9362         * gimple-ssa-sprintf.c (format_directive): Same.
9363         (parse_directive): Same.
9364         (sprintf_dom_walker::compute_format_length): Same.
9365         (try_substitute_return_value): Same.
9366
9367 2018-01-03  Jeff Law  <law@redhat.com>
9368
9369         PR middle-end/83654
9370         * explow.c (anti_adjust_stack_and_probe_stack_clash): Test a
9371         non-constant residual for zero at runtime and avoid probing in
9372         that case.  Reorganize code for trailing problem to mirror handling
9373         of the residual.
9374
9375 2018-01-03  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
9376
9377         PR tree-optimization/83501
9378         * tree-ssa-strlen.c (get_string_cst): New.
9379         (handle_char_store): Call get_string_cst.
9380
9381 2018-01-03  Martin Liska  <mliska@suse.cz>
9382
9383         PR tree-optimization/83593
9384         * tree-ssa-strlen.c: Include tree-cfg.h.
9385         (strlen_check_and_optimize_stmt): Add new argument cleanup_eh.
9386         (strlen_dom_walker): Add new member variable m_cleanup_cfg.
9387         (strlen_dom_walker::strlen_dom_walker): Initialize m_cleanup_cfg
9388         to false.
9389         (strlen_dom_walker::before_dom_children): Call
9390         gimple_purge_dead_eh_edges. Dump tranformation with details
9391         dump flags.
9392         (strlen_dom_walker::before_dom_children): Update call by adding
9393         new argument cleanup_eh.
9394         (pass_strlen::execute): Return TODO_cleanup_cfg if needed.
9395
9396 2018-01-03  Martin Liska  <mliska@suse.cz>
9397
9398         PR ipa/83549
9399         * cif-code.def (VARIADIC_THUNK): New enum value.
9400         * ipa-fnsummary.c (compute_fn_summary): Do not inline variadic
9401         thunks.
9402
9403 2018-01-03  Jan Beulich  <jbeulich@suse.com>
9404
9405         * sse.md (mov<mode>_internal): Tighten condition for when to use
9406         vmovdqu<ssescalarsize> for TI and OI modes.
9407
9408 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
9409
9410         Update copyright years.
9411
9412 2018-01-03  Martin Liska  <mliska@suse.cz>
9413
9414         PR ipa/83594
9415         * ipa-visibility.c (function_and_variable_visibility): Skip
9416         functions with noipa attribure.
9417
9418 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
9419
9420         * gcc.c (process_command): Update copyright notice dates.
9421         * gcov-dump.c (print_version): Ditto.
9422         * gcov.c (print_version): Ditto.
9423         * gcov-tool.c (print_version): Ditto.
9424         * gengtype.c (create_file): Ditto.
9425         * doc/cpp.texi: Bump @copying's copyright year.
9426         * doc/cppinternals.texi: Ditto.
9427         * doc/gcc.texi: Ditto.
9428         * doc/gccint.texi: Ditto.
9429         * doc/gcov.texi: Ditto.
9430         * doc/install.texi: Ditto.
9431         * doc/invoke.texi: Ditto.
9432
9433 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9434
9435         * vector-builder.h (vector_builder::m_full_nelts): Change from
9436         unsigned int to poly_uint64.
9437         (vector_builder::full_nelts): Update prototype accordingly.
9438         (vector_builder::new_vector): Likewise.
9439         (vector_builder::encoded_full_vector_p): Handle polynomial full_nelts.
9440         (vector_builder::operator ==): Likewise.
9441         (vector_builder::finalize): Likewise.
9442         * int-vector-builder.h (int_vector_builder::int_vector_builder):
9443         Take the number of elements as a poly_uint64 rather than an
9444         unsigned int.
9445         * vec-perm-indices.h (vec_perm_indices::m_nelts_per_input): Change
9446         from unsigned int to poly_uint64.
9447         (vec_perm_indices::vec_perm_indices): Update prototype accordingly.
9448         (vec_perm_indices::new_vector): Likewise.
9449         (vec_perm_indices::length): Likewise.
9450         (vec_perm_indices::nelts_per_input): Likewise.
9451         (vec_perm_indices::input_nelts): Likewise.
9452         * vec-perm-indices.c (vec_perm_indices::new_vector): Take the
9453         number of elements per input as a poly_uint64 rather than an
9454         unsigned int.  Use the original encoding for variable-length
9455         vectors, rather than clamping each individual element.
9456         For the second and subsequent elements in each pattern,
9457         clamp the step and base before clamping their sum.
9458         (vec_perm_indices::series_p): Handle polynomial element counts.
9459         (vec_perm_indices::all_in_range_p): Likewise.
9460         (vec_perm_indices_to_tree): Likewise.
9461         (vec_perm_indices_to_rtx): Likewise.
9462         * tree-vect-stmts.c (vect_gen_perm_mask_any): Likewise.
9463         * tree-vector-builder.c (tree_vector_builder::new_unary_operation)
9464         (tree_vector_builder::new_binary_operation): Handle polynomial
9465         element counts.  Return false if we need to know the number
9466         of elements at compile time.
9467         * fold-const.c (fold_vec_perm): Punt if the number of elements
9468         isn't known at compile time.
9469
9470 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9471
9472         * vec-perm-indices.h (vec_perm_builder): Change element type
9473         from HOST_WIDE_INT to poly_int64.
9474         (vec_perm_indices::element_type): Update accordingly.
9475         (vec_perm_indices::clamp): Handle polynomial element_types.
9476         * vec-perm-indices.c (vec_perm_indices::series_p): Likewise.
9477         (vec_perm_indices::all_in_range_p): Likewise.
9478         (tree_to_vec_perm_builder): Check for poly_int64 trees rather
9479         than shwi trees.
9480         * vector-builder.h (vector_builder::stepped_sequence_p): Handle
9481         polynomial vec_perm_indices element types.
9482         * int-vector-builder.h (int_vector_builder::equal_p): Likewise.
9483         * fold-const.c (fold_vec_perm): Likewise.
9484         * optabs.c (shift_amt_for_vec_perm_mask): Likewise.
9485         * tree-vect-generic.c (lower_vec_perm): Likewise.
9486         * tree-vect-slp.c (vect_transform_slp_perm_load): Likewise.
9487         * config/aarch64/aarch64.c (aarch64_evpc_tbl): Cast d->perm
9488         element type to HOST_WIDE_INT.
9489
9490 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9491             Alan Hayward  <alan.hayward@arm.com>
9492             David Sherwood  <david.sherwood@arm.com>
9493
9494         * alias.c (addr_side_effect_eval): Take the size as a poly_int64
9495         rather than an int.  Use plus_constant.
9496         (memrefs_conflict_p): Take the sizes as poly_int64s rather than ints.
9497         Take the offset "c" as a poly_int64 rather than a HOST_WIDE_INT.
9498
9499 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9500             Alan Hayward  <alan.hayward@arm.com>
9501             David Sherwood  <david.sherwood@arm.com>
9502
9503         * calls.c (emit_call_1, expand_call): Change struct_value_size from
9504         a HOST_WIDE_INT to a poly_int64.
9505
9506 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9507             Alan Hayward  <alan.hayward@arm.com>
9508             David Sherwood  <david.sherwood@arm.com>
9509
9510         * calls.c (load_register_parameters): Cope with polynomial
9511         mode sizes.  Require a constant size for BLKmode parameters
9512         that aren't described by a PARALLEL.  If BLOCK_REG_PADDING
9513         forces a parameter to be padded at the lsb end in order to
9514         fill a complete number of words, require the parameter size
9515         to be ordered wrt UNITS_PER_WORD.
9516
9517 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9518             Alan Hayward  <alan.hayward@arm.com>
9519             David Sherwood  <david.sherwood@arm.com>
9520
9521         * reload1.c (spill_stack_slot_width): Change element type
9522         from unsigned int to poly_uint64_pod.
9523         (alter_reg): Treat mode sizes as polynomial.
9524
9525 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9526             Alan Hayward  <alan.hayward@arm.com>
9527             David Sherwood  <david.sherwood@arm.com>
9528
9529         * reload.c (complex_word_subreg_p): New function.
9530         (reload_inner_reg_of_subreg, push_reload): Use it.
9531
9532 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9533             Alan Hayward  <alan.hayward@arm.com>
9534             David Sherwood  <david.sherwood@arm.com>
9535
9536         * lra-constraints.c (process_alt_operands): Reject matched
9537         operands whose sizes aren't ordered.
9538         (match_reload): Refer to this check here.
9539
9540 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9541             Alan Hayward  <alan.hayward@arm.com>
9542             David Sherwood  <david.sherwood@arm.com>
9543
9544         * builtins.c (expand_ifn_atomic_compare_exchange_into_call): Assert
9545         that the mode size is in the set {1, 2, 4, 8, 16}.
9546
9547 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9548             Alan Hayward  <alan.hayward@arm.com>
9549             David Sherwood  <david.sherwood@arm.com>
9550
9551         * var-tracking.c (adjust_mems): Treat mode sizes as polynomial.
9552         Use plus_constant instead of gen_rtx_PLUS.
9553
9554 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9555             Alan Hayward  <alan.hayward@arm.com>
9556             David Sherwood  <david.sherwood@arm.com>
9557
9558         * config/cr16/cr16-protos.h (cr16_push_rounding): Declare.
9559         * config/cr16/cr16.h (PUSH_ROUNDING): Move implementation to...
9560         * config/cr16/cr16.c (cr16_push_rounding): ...this new function.
9561         * config/h8300/h8300-protos.h (h8300_push_rounding): Declare.
9562         * config/h8300/h8300.h (PUSH_ROUNDING): Move implementation to...
9563         * config/h8300/h8300.c (h8300_push_rounding): ...this new function.
9564         * config/i386/i386-protos.h (ix86_push_rounding): Declare.
9565         * config/i386/i386.h (PUSH_ROUNDING): Move implementation to...
9566         * config/i386/i386.c (ix86_push_rounding): ...this new function.
9567         * config/m32c/m32c-protos.h (m32c_push_rounding): Take and return
9568         a poly_int64.
9569         * config/m32c/m32c.c (m32c_push_rounding): Likewise.
9570         * config/m68k/m68k-protos.h (m68k_push_rounding): Declare.
9571         * config/m68k/m68k.h (PUSH_ROUNDING): Move implementation to...
9572         * config/m68k/m68k.c (m68k_push_rounding): ...this new function.
9573         * config/pdp11/pdp11-protos.h (pdp11_push_rounding): Declare.
9574         * config/pdp11/pdp11.h (PUSH_ROUNDING): Move implementation to...
9575         * config/pdp11/pdp11.c (pdp11_push_rounding): ...this new function.
9576         * config/stormy16/stormy16-protos.h (xstormy16_push_rounding): Declare.
9577         * config/stormy16/stormy16.h (PUSH_ROUNDING): Move implementation to...
9578         * config/stormy16/stormy16.c (xstormy16_push_rounding): ...this new
9579         function.
9580         * expr.c (emit_move_resolve_push): Treat the input and result
9581         of PUSH_ROUNDING as a poly_int64.
9582         (emit_move_complex_push, emit_single_push_insn_1): Likewise.
9583         (emit_push_insn): Likewise.
9584         * lra-eliminations.c (mark_not_eliminable): Likewise.
9585         * recog.c (push_operand): Likewise.
9586         * reload1.c (elimination_effects): Likewise.
9587         * rtlanal.c (nonzero_bits1): Likewise.
9588         * calls.c (store_one_arg): Likewise.  Require the padding to be
9589         known at compile time.
9590
9591 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9592             Alan Hayward  <alan.hayward@arm.com>
9593             David Sherwood  <david.sherwood@arm.com>
9594
9595         * expr.c (emit_single_push_insn_1): Treat mode sizes as polynomial.
9596         Use plus_constant instead of gen_rtx_PLUS.
9597
9598 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9599             Alan Hayward  <alan.hayward@arm.com>
9600             David Sherwood  <david.sherwood@arm.com>
9601
9602         * auto-inc-dec.c (set_inc_state): Take the mode size as a poly_int64
9603         rather than an int.
9604
9605 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9606             Alan Hayward  <alan.hayward@arm.com>
9607             David Sherwood  <david.sherwood@arm.com>
9608
9609         * expr.c (expand_expr_real_1): Use tree_to_poly_uint64
9610         instead of int_size_in_bytes when handling VIEW_CONVERT_EXPRs
9611         via stack temporaries.  Treat the mode size as polynomial too.
9612
9613 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9614             Alan Hayward  <alan.hayward@arm.com>
9615             David Sherwood  <david.sherwood@arm.com>
9616
9617         * expr.c (expand_expr_real_2): When handling conversions involving
9618         unions, apply tree_to_poly_uint64 to the TYPE_SIZE rather than
9619         multiplying int_size_in_bytes by BITS_PER_UNIT.  Treat GET_MODE_BISIZE
9620         as a poly_uint64 too.
9621
9622 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9623             Alan Hayward  <alan.hayward@arm.com>
9624             David Sherwood  <david.sherwood@arm.com>
9625
9626         * rtlanal.c (subreg_get_info): Handle polynomial mode sizes.
9627
9628 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9629             Alan Hayward  <alan.hayward@arm.com>
9630             David Sherwood  <david.sherwood@arm.com>
9631
9632         * combine.c (can_change_dest_mode): Handle polynomial
9633         REGMODE_NATURAL_SIZE.
9634         * expmed.c (store_bit_field_1): Likewise.
9635         * expr.c (store_constructor): Likewise.
9636         * emit-rtl.c (validate_subreg): Operate on polynomial mode sizes
9637         and polynomial REGMODE_NATURAL_SIZE.
9638         (gen_lowpart_common): Likewise.
9639         * reginfo.c (record_subregs_of_mode): Likewise.
9640         * rtlanal.c (read_modify_subreg_p): Likewise.
9641
9642 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9643             Alan Hayward  <alan.hayward@arm.com>
9644             David Sherwood  <david.sherwood@arm.com>
9645
9646         * internal-fn.c (expand_vector_ubsan_overflow): Handle polynomial
9647         numbers of elements.
9648
9649 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9650             Alan Hayward  <alan.hayward@arm.com>
9651             David Sherwood  <david.sherwood@arm.com>
9652
9653         * match.pd: Cope with polynomial numbers of vector elements.
9654
9655 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9656             Alan Hayward  <alan.hayward@arm.com>
9657             David Sherwood  <david.sherwood@arm.com>
9658
9659         * fold-const.c (fold_indirect_ref_1): Handle polynomial offsets
9660         in a POINTER_PLUS_EXPR.
9661
9662 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9663             Alan Hayward  <alan.hayward@arm.com>
9664             David Sherwood  <david.sherwood@arm.com>
9665
9666         * omp-simd-clone.c (simd_clone_subparts): New function.
9667         (simd_clone_init_simd_arrays): Use it instead of TYPE_VECTOR_SUBPARTS.
9668         (ipa_simd_modify_function_body): Likewise.
9669
9670 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9671             Alan Hayward  <alan.hayward@arm.com>
9672             David Sherwood  <david.sherwood@arm.com>
9673
9674         * tree-vect-generic.c (nunits_for_known_piecewise_op): New function.
9675         (expand_vector_piecewise): Use it instead of TYPE_VECTOR_SUBPARTS.
9676         (expand_vector_addition, add_rshift, expand_vector_divmod): Likewise.
9677         (expand_vector_condition, vector_element): Likewise.
9678         (subparts_gt): New function.
9679         (get_compute_type): Use subparts_gt.
9680         (count_type_subparts): Delete.
9681         (expand_vector_operations_1): Use subparts_gt instead of
9682         count_type_subparts.
9683
9684 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9685             Alan Hayward  <alan.hayward@arm.com>
9686             David Sherwood  <david.sherwood@arm.com>
9687
9688         * tree-vect-data-refs.c (vect_no_alias_p): Replace with...
9689         (vect_compile_time_alias): ...this new function.  Do the calculation
9690         on poly_ints rather than trees.
9691         (vect_prune_runtime_alias_test_list): Update call accordingly.
9692
9693 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9694             Alan Hayward  <alan.hayward@arm.com>
9695             David Sherwood  <david.sherwood@arm.com>
9696
9697         * tree-vect-slp.c (vect_build_slp_tree_1): Handle polynomial
9698         numbers of units.
9699         (vect_schedule_slp_instance): Likewise.
9700
9701 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9702             Alan Hayward  <alan.hayward@arm.com>
9703             David Sherwood  <david.sherwood@arm.com>
9704
9705         * tree-vect-slp.c (vect_get_and_check_slp_defs): Reject
9706         constant and extern definitions for variable-length vectors.
9707         (vect_get_constant_vectors): Note that the number of units
9708         is known to be constant.
9709
9710 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9711             Alan Hayward  <alan.hayward@arm.com>
9712             David Sherwood  <david.sherwood@arm.com>
9713
9714         * tree-vect-stmts.c (vectorizable_conversion): Treat the number
9715         of units as polynomial.  Choose between WIDE and NARROW based
9716         on multiple_p.
9717
9718 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9719             Alan Hayward  <alan.hayward@arm.com>
9720             David Sherwood  <david.sherwood@arm.com>
9721
9722         * tree-vect-stmts.c (simd_clone_subparts): New function.
9723         (vectorizable_simd_clone_call): Use it instead of TYPE_VECTOR_SUBPARTS.
9724
9725 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9726             Alan Hayward  <alan.hayward@arm.com>
9727             David Sherwood  <david.sherwood@arm.com>
9728
9729         * tree-vect-stmts.c (vectorizable_call): Treat the number of
9730         vectors as polynomial.  Use build_index_vector for
9731         IFN_GOMP_SIMD_LANE.
9732
9733 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9734             Alan Hayward  <alan.hayward@arm.com>
9735             David Sherwood  <david.sherwood@arm.com>
9736
9737         * tree-vect-stmts.c (get_load_store_type): Treat the number of
9738         units as polynomial.  Reject VMAT_ELEMENTWISE and VMAT_STRIDED_SLP
9739         for variable-length vectors.
9740         (vectorizable_mask_load_store): Treat the number of units as
9741         polynomial, asserting that it is constant if the condition has
9742         already been enforced.
9743         (vectorizable_store, vectorizable_load): Likewise.
9744
9745 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9746             Alan Hayward  <alan.hayward@arm.com>
9747             David Sherwood  <david.sherwood@arm.com>
9748
9749         * tree-vect-loop.c (vectorizable_live_operation): Treat the number
9750         of units as polynomial.  Punt if we can't tell at compile time
9751         which vector contains the final result.
9752
9753 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9754             Alan Hayward  <alan.hayward@arm.com>
9755             David Sherwood  <david.sherwood@arm.com>
9756
9757         * tree-vect-loop.c (vectorizable_induction): Treat the number
9758         of units as polynomial.  Punt on SLP inductions.  Use an integer
9759         VEC_SERIES_EXPR for variable-length integer reductions.  Use a
9760         cast of such a series for variable-length floating-point
9761         reductions.
9762
9763 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9764             Alan Hayward  <alan.hayward@arm.com>
9765             David Sherwood  <david.sherwood@arm.com>
9766
9767         * tree.h (build_index_vector): Declare.
9768         * tree.c (build_index_vector): New function.
9769         * tree-vect-loop.c (get_initial_defs_for_reduction): Treat the number
9770         of units as polynomial, forcibly converting it to a constant if
9771         vectorizable_reduction has already enforced the condition.
9772         (vect_create_epilog_for_reduction): Likewise.  Use build_index_vector
9773         to create a {1,2,3,...} vector.
9774         (vectorizable_reduction): Treat the number of units as polynomial.
9775         Choose vectype_in based on the largest scalar element size rather
9776         than the smallest number of units.  Enforce the restrictions
9777         relied on above.
9778
9779 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9780             Alan Hayward  <alan.hayward@arm.com>
9781             David Sherwood  <david.sherwood@arm.com>
9782
9783         * tree-vect-data-refs.c (vector_alignment_reachable_p): Treat the
9784         number of units as polynomial.
9785
9786 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9787             Alan Hayward  <alan.hayward@arm.com>
9788             David Sherwood  <david.sherwood@arm.com>
9789
9790         * target.h (vector_sizes, auto_vector_sizes): New typedefs.
9791         * target.def (autovectorize_vector_sizes): Return the vector sizes
9792         by pointer, using vector_sizes rather than a bitmask.
9793         * targhooks.h (default_autovectorize_vector_sizes): Update accordingly.
9794         * targhooks.c (default_autovectorize_vector_sizes): Likewise.
9795         * config/aarch64/aarch64.c (aarch64_autovectorize_vector_sizes):
9796         Likewise.
9797         * config/arc/arc.c (arc_autovectorize_vector_sizes): Likewise.
9798         * config/arm/arm.c (arm_autovectorize_vector_sizes): Likewise.
9799         * config/i386/i386.c (ix86_autovectorize_vector_sizes): Likewise.
9800         * config/mips/mips.c (mips_autovectorize_vector_sizes): Likewise.
9801         * omp-general.c (omp_max_vf): Likewise.
9802         * omp-low.c (omp_clause_aligned_alignment): Likewise.
9803         * optabs-query.c (can_vec_mask_load_store_p): Likewise.
9804         * tree-vect-loop.c (vect_analyze_loop): Likewise.
9805         * tree-vect-slp.c (vect_slp_bb): Likewise.
9806         * doc/tm.texi: Regenerate.
9807         * tree-vectorizer.h (current_vector_size): Change from an unsigned int
9808         to a poly_uint64.
9809         * tree-vect-stmts.c (get_vectype_for_scalar_type_and_size): Take
9810         the vector size as a poly_uint64 rather than an unsigned int.
9811         (current_vector_size): Change from an unsigned int to a poly_uint64.
9812         (get_vectype_for_scalar_type): Update accordingly.
9813         * tree.h (build_truth_vector_type): Take the size and number of
9814         units as a poly_uint64 rather than an unsigned int.
9815         (build_vector_type): Add a temporary overload that takes
9816         the number of units as a poly_uint64 rather than an unsigned int.
9817         * tree.c (make_vector_type): Likewise.
9818         (build_truth_vector_type): Take the number of units as a poly_uint64
9819         rather than an unsigned int.
9820
9821 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9822             Alan Hayward  <alan.hayward@arm.com>
9823             David Sherwood  <david.sherwood@arm.com>
9824
9825         * target.def (get_mask_mode): Take the number of units and length
9826         as poly_uint64s rather than unsigned ints.
9827         * targhooks.h (default_get_mask_mode): Update accordingly.
9828         * targhooks.c (default_get_mask_mode): Likewise.
9829         * config/i386/i386.c (ix86_get_mask_mode): Likewise.
9830         * doc/tm.texi: Regenerate.
9831
9832 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9833             Alan Hayward  <alan.hayward@arm.com>
9834             David Sherwood  <david.sherwood@arm.com>
9835
9836         * omp-general.h (omp_max_vf): Return a poly_uint64 instead of an int.
9837         * omp-general.c (omp_max_vf): Likewise.
9838         * omp-expand.c (omp_adjust_chunk_size): Update call to omp_max_vf.
9839         (expand_omp_simd): Handle polynomial safelen.
9840         * omp-low.c (omplow_simd_context): Add a default constructor.
9841         (omplow_simd_context::max_vf): Change from int to poly_uint64.
9842         (lower_rec_simd_input_clauses): Update accordingly.
9843         (lower_rec_input_clauses): Likewise.
9844
9845 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9846             Alan Hayward  <alan.hayward@arm.com>
9847             David Sherwood  <david.sherwood@arm.com>
9848
9849         * tree-vectorizer.h (vect_nunits_for_cost): New function.
9850         * tree-vect-loop.c (vect_model_reduction_cost): Use it.
9851         * tree-vect-slp.c (vect_analyze_slp_cost_1): Likewise.
9852         (vect_analyze_slp_cost): Likewise.
9853         * tree-vect-stmts.c (vect_model_store_cost): Likewise.
9854         (vect_model_load_cost): Likewise.
9855
9856 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9857             Alan Hayward  <alan.hayward@arm.com>
9858             David Sherwood  <david.sherwood@arm.com>
9859
9860         * tree-vect-slp.c (vect_record_max_nunits, vect_build_slp_tree_1)
9861         (vect_build_slp_tree_2, vect_build_slp_tree): Change max_nunits
9862         from an unsigned int * to a poly_uint64_pod *.
9863         (calculate_unrolling_factor): New function.
9864         (vect_analyze_slp_instance): Use it.  Track polynomial max_nunits.
9865
9866 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9867             Alan Hayward  <alan.hayward@arm.com>
9868             David Sherwood  <david.sherwood@arm.com>
9869
9870         * tree-vectorizer.h (_slp_instance::unrolling_factor): Change
9871         from an unsigned int to a poly_uint64.
9872         (_loop_vec_info::slp_unrolling_factor): Likewise.
9873         (_loop_vec_info::vectorization_factor): Change from an int
9874         to a poly_uint64.
9875         (MAX_VECTORIZATION_FACTOR): Bump from 64 to INT_MAX.
9876         (vect_get_num_vectors): New function.
9877         (vect_update_max_nunits, vect_vf_for_cost): Likewise.
9878         (vect_get_num_copies): Use vect_get_num_vectors.
9879         (vect_analyze_data_ref_dependences): Change max_vf from an int *
9880         to an unsigned int *.
9881         (vect_analyze_data_refs): Change min_vf from an int * to a
9882         poly_uint64 *.
9883         (vect_transform_slp_perm_load): Take the vf as a poly_uint64 rather
9884         than an unsigned HOST_WIDE_INT.
9885         * tree-vect-data-refs.c (vect_analyze_possibly_independent_ddr)
9886         (vect_analyze_data_ref_dependence): Change max_vf from an int *
9887         to an unsigned int *.
9888         (vect_analyze_data_ref_dependences): Likewise.
9889         (vect_compute_data_ref_alignment): Handle polynomial vf.
9890         (vect_enhance_data_refs_alignment): Likewise.
9891         (vect_prune_runtime_alias_test_list): Likewise.
9892         (vect_shift_permute_load_chain): Likewise.
9893         (vect_supportable_dr_alignment): Likewise.
9894         (dependence_distance_ge_vf): Take the vectorization factor as a
9895         poly_uint64 rather than an unsigned HOST_WIDE_INT.
9896         (vect_analyze_data_refs): Change min_vf from an int * to a
9897         poly_uint64 *.
9898         * tree-vect-loop-manip.c (vect_gen_scalar_loop_niters): Take
9899         vfm1 as a poly_uint64 rather than an int.  Make the same change
9900         for the returned bound_scalar.
9901         (vect_gen_vector_loop_niters): Handle polynomial vf.
9902         (vect_do_peeling): Likewise.  Update call to
9903         vect_gen_scalar_loop_niters and handle polynomial bound_scalars.
9904         (vect_gen_vector_loop_niters_mult_vf): Assert that the vf must
9905         be constant.
9906         * tree-vect-loop.c (vect_determine_vectorization_factor)
9907         (vect_update_vf_for_slp, vect_analyze_loop_2): Handle polynomial vf.
9908         (vect_get_known_peeling_cost): Likewise.
9909         (vect_estimate_min_profitable_iters, vectorizable_reduction): Likewise.
9910         (vect_worthwhile_without_simd_p, vectorizable_induction): Likewise.
9911         (vect_transform_loop): Likewise.  Use the lowest possible VF when
9912         updating the upper bounds of the loop.
9913         (vect_min_worthwhile_factor): Make static.  Return an unsigned int
9914         rather than an int.
9915         * tree-vect-slp.c (vect_attempt_slp_rearrange_stmts): Cope with
9916         polynomial unroll factors.
9917         (vect_analyze_slp_cost_1, vect_analyze_slp_instance): Likewise.
9918         (vect_make_slp_decision): Likewise.
9919         (vect_supported_load_permutation_p): Likewise, and polynomial
9920         vf too.
9921         (vect_analyze_slp_cost): Handle polynomial vf.
9922         (vect_slp_analyze_node_operations): Likewise.
9923         (vect_slp_analyze_bb_1): Likewise.
9924         (vect_transform_slp_perm_load): Take the vf as a poly_uint64 rather
9925         than an unsigned HOST_WIDE_INT.
9926         * tree-vect-stmts.c (vectorizable_simd_clone_call, vectorizable_store)
9927         (vectorizable_load): Handle polynomial vf.
9928         * tree-vectorizer.c (simduid_to_vf::vf): Change from an int to
9929         a poly_uint64.
9930         (adjust_simduid_builtins, shrink_simd_arrays): Update accordingly.
9931
9932 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9933             Alan Hayward  <alan.hayward@arm.com>
9934             David Sherwood  <david.sherwood@arm.com>
9935
9936         * match.pd: Handle bit operations involving three constants
9937         and try to fold one pair.
9938
9939 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
9940
9941         * tree-vect-loop-manip.c: Include gimple-fold.h.
9942         (slpeel_make_loop_iterate_ntimes): Add step, final_iv and
9943         niters_maybe_zero parameters.  Handle other cases besides a step of 1.
9944         (vect_gen_vector_loop_niters): Add a step_vector_ptr parameter.
9945         Add a path that uses a step of VF instead of 1, but disable it
9946         for now.
9947         (vect_do_peeling): Add step_vector, niters_vector_mult_vf_var
9948         and niters_no_overflow parameters.  Update calls to
9949         slpeel_make_loop_iterate_ntimes and vect_gen_vector_loop_niters.
9950         Create a new SSA name if the latter choses to use a ste other
9951         than zero, and return it via niters_vector_mult_vf_var.
9952         * tree-vect-loop.c (vect_transform_loop): Update calls to
9953         vect_do_peeling, vect_gen_vector_loop_niters and
9954         slpeel_make_loop_iterate_ntimes.
9955         * tree-vectorizer.h (slpeel_make_loop_iterate_ntimes, vect_do_peeling)
9956         (vect_gen_vector_loop_niters): Update declarations after above changes.
9957
9958 2018-01-02  Michael Meissner  <meissner@linux.vnet.ibm.com>
9959
9960         * config/rs6000/rs6000.md (floor<mode>2): Add support for IEEE
9961         128-bit round to integer instructions.
9962         (ceil<mode>2): Likewise.
9963         (btrunc<mode>2): Likewise.
9964         (round<mode>2): Likewise.
9965
9966 2018-01-02  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
9967
9968         * config/rs6000/rs6000-string.c (expand_block_move): Allow the use of
9969         unaligned VSX load/store on P8/P9.
9970         (expand_block_clear): Allow the use of unaligned VSX
9971         load/store on P8/P9.
9972
9973 2018-01-02  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
9974
9975         * config/rs6000/rs6000-p8swap.c (swap_feeds_both_load_and_store):
9976         New function.
9977         (rs6000_analyze_swaps): Mark a web unoptimizable if it contains a
9978         swap associated with both a load and a store.
9979
9980 2018-01-02  Andrew Waterman  <andrew@sifive.com>
9981
9982         * config/riscv/linux.h (ICACHE_FLUSH_FUNC): New.
9983         * config/riscv/riscv.md (clear_cache): Use it.
9984
9985 2018-01-02  Artyom Skrobov  <tyomitch@gmail.com>
9986
9987         * web.c: Remove out-of-date comment.
9988
9989 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
9990
9991         * expr.c (fixup_args_size_notes): Check that any existing
9992         REG_ARGS_SIZE notes are correct, and don't try to re-add them.
9993         (emit_single_push_insn_1): Move stack_pointer_delta adjustment to...
9994         (emit_single_push_insn): ...here.
9995
9996 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
9997
9998         * rtl.h (CONST_VECTOR_ELT): Redefine to const_vector_elt.
9999         (const_vector_encoded_nelts): New function.
10000         (CONST_VECTOR_NUNITS): Redefine to use GET_MODE_NUNITS.
10001         (const_vector_int_elt, const_vector_elt): Declare.
10002         * emit-rtl.c (const_vector_int_elt_1): New function.
10003         (const_vector_elt): Likewise.
10004         * simplify-rtx.c (simplify_immed_subreg): Avoid taking the address
10005         of CONST_VECTOR_ELT.
10006
10007 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
10008
10009         * expr.c: Include rtx-vector-builder.h.
10010         (const_vector_mask_from_tree): Use rtx_vector_builder and operate
10011         directly on the tree encoding.
10012         (const_vector_from_tree): Likewise.
10013         * optabs.c: Include rtx-vector-builder.h.
10014         (expand_vec_perm_var): Use rtx_vector_builder and create a repeating
10015         sequence of "u" values.
10016         * vec-perm-indices.c: Include rtx-vector-builder.h.
10017         (vec_perm_indices_to_rtx): Use rtx_vector_builder and operate
10018         directly on the vec_perm_indices encoding.
10019
10020 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
10021
10022         * doc/rtl.texi (const_vector): Describe new encoding scheme.
10023         * Makefile.in (OBJS): Add rtx-vector-builder.o.
10024         * rtx-vector-builder.h: New file.
10025         * rtx-vector-builder.c: Likewise.
10026         * rtl.h (rtx_def::u2): Add a const_vector field.
10027         (CONST_VECTOR_NPATTERNS): New macro.
10028         (CONST_VECTOR_NELTS_PER_PATTERN): Likewise.
10029         (CONST_VECTOR_DUPLICATE_P): Likewise.
10030         (CONST_VECTOR_STEPPED_P): Likewise.
10031         (CONST_VECTOR_ENCODED_ELT): Likewise.
10032         (const_vec_duplicate_p): Check for a duplicated vector encoding.
10033         (unwrap_const_vec_duplicate): Likewise.
10034         (const_vec_series_p): Check for a non-duplicated vector encoding.
10035         Say that the function only returns true for integer vectors.
10036         * emit-rtl.c: Include rtx-vector-builder.h.
10037         (gen_const_vec_duplicate_1): Delete.
10038         (gen_const_vector): Call gen_const_vec_duplicate instead of
10039         gen_const_vec_duplicate_1.
10040         (const_vec_series_p_1): Operate directly on the CONST_VECTOR encoding.
10041         (gen_const_vec_duplicate): Use rtx_vector_builder.
10042         (gen_const_vec_series): Likewise.
10043         (gen_rtx_CONST_VECTOR): Likewise.
10044         * config/powerpcspe/powerpcspe.c: Include rtx-vector-builder.h.
10045         (swap_const_vector_halves): Take an rtx pointer rather than rtx.
10046         Build a new vector rather than modifying a CONST_VECTOR in-place.
10047         (handle_special_swappables): Update call accordingly.
10048         * config/rs6000/rs6000-p8swap.c: Include rtx-vector-builder.h.
10049         (swap_const_vector_halves): Take an rtx pointer rather than rtx.
10050         Build a new vector rather than modifying a CONST_VECTOR in-place.
10051         (handle_special_swappables): Update call accordingly.
10052
10053 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
10054
10055         * simplify-rtx.c (simplify_const_binary_operation): Use
10056         CONST_VECTOR_ELT instead of XVECEXP.
10057
10058 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
10059
10060         * tree-cfg.c (verify_gimple_assign_ternary): Allow the size of
10061         the selector elements to be different from the data elements
10062         if the selector is a VECTOR_CST.
10063         * tree-vect-stmts.c (vect_gen_perm_mask_any): Use a vector of
10064         ssizetype for the selector.
10065
10066 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
10067
10068         * optabs.c (shift_amt_for_vec_perm_mask): Try using series_p
10069         before testing each element individually.
10070         * tree-vect-generic.c (lower_vec_perm): Likewise.
10071
10072 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
10073
10074         * selftest.h (selftest::vec_perm_indices_c_tests): Declare.
10075         * selftest-run-tests.c (selftest::run_tests): Call it.
10076         * vector-builder.h (vector_builder::operator ==): New function.
10077         (vector_builder::operator !=): Likewise.
10078         * vec-perm-indices.h (vec_perm_indices::series_p): Declare.
10079         (vec_perm_indices::all_from_input_p): New function.
10080         * vec-perm-indices.c (vec_perm_indices::series_p): Likewise.
10081         (test_vec_perm_12, selftest::vec_perm_indices_c_tests): Likewise.
10082         * fold-const.c (fold_ternary_loc): Use tree_to_vec_perm_builder
10083         instead of reading the VECTOR_CST directly.  Detect whether both
10084         vector inputs are the same before constructing the vec_perm_indices,
10085         and update the number of inputs argument accordingly.  Use the
10086         utility functions added above.  Only construct sel2 if we need to.
10087
10088 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
10089
10090         * optabs.c (expand_vec_perm_var): Use an explicit encoding for
10091         the broadcast of the low byte.
10092         (expand_mult_highpart): Use an explicit encoding for the permutes.
10093         * optabs-query.c (can_mult_highpart_p): Likewise.
10094         * tree-vect-loop.c (calc_vec_perm_mask_for_shift): Likewise.
10095         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
10096         (vectorizable_bswap): Likewise.
10097         * tree-vect-data-refs.c (vect_grouped_store_supported): Use an
10098         explicit encoding for the power-of-2 permutes.
10099         (vect_permute_store_chain): Likewise.
10100         (vect_grouped_load_supported): Likewise.
10101         (vect_permute_load_chain): Likewise.
10102
10103 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
10104
10105         * vec-perm-indices.h (vec_perm_indices_to_tree): Declare.
10106         * vec-perm-indices.c (vec_perm_indices_to_tree): New function.
10107         * tree-ssa-forwprop.c (simplify_vector_constructor): Use it.
10108         * tree-vect-slp.c (vect_transform_slp_perm_load): Likewise.
10109         * tree-vect-stmts.c (vectorizable_bswap): Likewise.
10110         (vect_gen_perm_mask_any): Likewise.
10111
10112 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
10113
10114         * int-vector-builder.h: New file.
10115         * vec-perm-indices.h: Include int-vector-builder.h.
10116         (vec_perm_indices): Redefine as an int_vector_builder.
10117         (auto_vec_perm_indices): Delete.
10118         (vec_perm_builder): Redefine as a stand-alone class.
10119         (vec_perm_indices::vec_perm_indices): New function.
10120         (vec_perm_indices::clamp): Likewise.
10121         * vec-perm-indices.c: Include fold-const.h and tree-vector-builder.h.
10122         (vec_perm_indices::new_vector): New function.
10123         (vec_perm_indices::new_expanded_vector): Update for new
10124         vec_perm_indices class.
10125         (vec_perm_indices::rotate_inputs): New function.
10126         (vec_perm_indices::all_in_range_p): Operate directly on the
10127         encoded form, without computing elided elements.
10128         (tree_to_vec_perm_builder): Operate directly on the VECTOR_CST
10129         encoding.  Update for new vec_perm_indices class.
10130         * optabs.c (expand_vec_perm_const): Create a vec_perm_indices for
10131         the given vec_perm_builder.
10132         (expand_vec_perm_var): Update vec_perm_builder constructor.
10133         (expand_mult_highpart): Use vec_perm_builder instead of
10134         auto_vec_perm_indices.
10135         * optabs-query.c (can_mult_highpart_p): Use vec_perm_builder and
10136         vec_perm_indices instead of auto_vec_perm_indices.  Use a single
10137         or double series encoding as appropriate.
10138         * fold-const.c (fold_ternary_loc): Use vec_perm_builder and
10139         vec_perm_indices instead of auto_vec_perm_indices.
10140         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
10141         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
10142         (vect_permute_store_chain): Likewise.
10143         (vect_grouped_load_supported): Likewise.
10144         (vect_permute_load_chain): Likewise.
10145         (vect_shift_permute_load_chain): Likewise.
10146         * tree-vect-slp.c (vect_build_slp_tree_1): Likewise.
10147         (vect_transform_slp_perm_load): Likewise.
10148         (vect_schedule_slp_instance): Likewise.
10149         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
10150         (vectorizable_mask_load_store): Likewise.
10151         (vectorizable_bswap): Likewise.
10152         (vectorizable_store): Likewise.
10153         (vectorizable_load): Likewise.
10154         * tree-vect-generic.c (lower_vec_perm): Use vec_perm_builder and
10155         vec_perm_indices instead of auto_vec_perm_indices.  Use
10156         tree_to_vec_perm_builder to read the vector from a tree.
10157         * tree-vect-loop.c (calc_vec_perm_mask_for_shift): Take a
10158         vec_perm_builder instead of a vec_perm_indices.
10159         (have_whole_vector_shift): Use vec_perm_builder and
10160         vec_perm_indices instead of auto_vec_perm_indices.  Leave the
10161         truncation to calc_vec_perm_mask_for_shift.
10162         (vect_create_epilog_for_reduction): Likewise.
10163         * config/aarch64/aarch64.c (expand_vec_perm_d::perm): Change
10164         from auto_vec_perm_indices to vec_perm_indices.
10165         (aarch64_expand_vec_perm_const_1): Use rotate_inputs on d.perm
10166         instead of changing individual elements.
10167         (aarch64_vectorize_vec_perm_const): Use new_vector to install
10168         the vector in d.perm.
10169         * config/arm/arm.c (expand_vec_perm_d::perm): Change
10170         from auto_vec_perm_indices to vec_perm_indices.
10171         (arm_expand_vec_perm_const_1): Use rotate_inputs on d.perm
10172         instead of changing individual elements.
10173         (arm_vectorize_vec_perm_const): Use new_vector to install
10174         the vector in d.perm.
10175         * config/powerpcspe/powerpcspe.c (rs6000_expand_extract_even):
10176         Update vec_perm_builder constructor.
10177         (rs6000_expand_interleave): Likewise.
10178         * config/rs6000/rs6000.c (rs6000_expand_extract_even): Likewise.
10179         (rs6000_expand_interleave): Likewise.
10180
10181 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
10182
10183         * optabs-query.c (can_vec_perm_var_p): Check whether lowering
10184         to qimode could truncate the indices.
10185         * optabs.c (expand_vec_perm_var): Likewise.
10186
10187 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
10188
10189         * Makefile.in (OBJS): Add vec-perm-indices.o.
10190         * vec-perm-indices.h: New file.
10191         * vec-perm-indices.c: Likewise.
10192         * target.h (vec_perm_indices): Replace with a forward class
10193         declaration.
10194         (auto_vec_perm_indices): Move to vec-perm-indices.h.
10195         * optabs.h: Include vec-perm-indices.h.
10196         (expand_vec_perm): Delete.
10197         (selector_fits_mode_p, expand_vec_perm_var): Declare.
10198         (expand_vec_perm_const): Declare.
10199         * target.def (vec_perm_const_ok): Replace with...
10200         (vec_perm_const): ...this new hook.
10201         * doc/tm.texi.in (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Replace with...
10202         (TARGET_VECTORIZE_VEC_PERM_CONST): ...this new hook.
10203         * doc/tm.texi: Regenerate.
10204         * optabs.def (vec_perm_const): Delete.
10205         * doc/md.texi (vec_perm_const): Likewise.
10206         (vec_perm): Refer to TARGET_VECTORIZE_VEC_PERM_CONST.
10207         * expr.c (expand_expr_real_2): Use expand_vec_perm_const rather than
10208         expand_vec_perm for constant permutation vectors.  Assert that
10209         the mode of variable permutation vectors is the integer equivalent
10210         of the mode that is being permuted.
10211         * optabs-query.h (selector_fits_mode_p): Declare.
10212         * optabs-query.c: Include vec-perm-indices.h.
10213         (selector_fits_mode_p): New function.
10214         (can_vec_perm_const_p): Check whether targetm.vectorize.vec_perm_const
10215         is defined, instead of checking whether the vec_perm_const_optab
10216         exists.  Use targetm.vectorize.vec_perm_const instead of
10217         targetm.vectorize.vec_perm_const_ok.  Check whether the indices
10218         fit in the vector mode before using a variable permute.
10219         * optabs.c (shift_amt_for_vec_perm_mask): Take a mode and a
10220         vec_perm_indices instead of an rtx.
10221         (expand_vec_perm): Replace with...
10222         (expand_vec_perm_const): ...this new function.  Take the selector
10223         as a vec_perm_indices rather than an rtx.  Also take the mode of
10224         the selector.  Update call to shift_amt_for_vec_perm_mask.
10225         Use targetm.vectorize.vec_perm_const instead of vec_perm_const_optab.
10226         Use vec_perm_indices::new_expanded_vector to expand the original
10227         selector into bytes.  Check whether the indices fit in the vector
10228         mode before using a variable permute.
10229         (expand_vec_perm_var): Make global.
10230         (expand_mult_highpart): Use expand_vec_perm_const.
10231         * fold-const.c: Includes vec-perm-indices.h.
10232         * tree-ssa-forwprop.c: Likewise.
10233         * tree-vect-data-refs.c: Likewise.
10234         * tree-vect-generic.c: Likewise.
10235         * tree-vect-loop.c: Likewise.
10236         * tree-vect-slp.c: Likewise.
10237         * tree-vect-stmts.c: Likewise.
10238         * config/aarch64/aarch64-protos.h (aarch64_expand_vec_perm_const):
10239         Delete.
10240         * config/aarch64/aarch64-simd.md (vec_perm_const<mode>): Delete.
10241         * config/aarch64/aarch64.c (aarch64_expand_vec_perm_const)
10242         (aarch64_vectorize_vec_perm_const_ok): Fuse into...
10243         (aarch64_vectorize_vec_perm_const): ...this new function.
10244         (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
10245         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
10246         * config/arm/arm-protos.h (arm_expand_vec_perm_const): Delete.
10247         * config/arm/vec-common.md (vec_perm_const<mode>): Delete.
10248         * config/arm/arm.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
10249         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
10250         (arm_expand_vec_perm_const, arm_vectorize_vec_perm_const_ok): Merge
10251         into...
10252         (arm_vectorize_vec_perm_const): ...this new function.  Explicitly
10253         check for NEON modes.
10254         * config/i386/i386-protos.h (ix86_expand_vec_perm_const): Delete.
10255         * config/i386/sse.md (VEC_PERM_CONST, vec_perm_const<mode>): Delete.
10256         * config/i386/i386.c (ix86_expand_vec_perm_const_1): Update comment.
10257         (ix86_expand_vec_perm_const, ix86_vectorize_vec_perm_const_ok): Merge
10258         into...
10259         (ix86_vectorize_vec_perm_const): ...this new function.  Incorporate
10260         the old VEC_PERM_CONST conditions.
10261         * config/ia64/ia64-protos.h (ia64_expand_vec_perm_const): Delete.
10262         * config/ia64/vect.md (vec_perm_const<mode>): Delete.
10263         * config/ia64/ia64.c (ia64_expand_vec_perm_const)
10264         (ia64_vectorize_vec_perm_const_ok): Merge into...
10265         (ia64_vectorize_vec_perm_const): ...this new function.
10266         * config/mips/loongson.md (vec_perm_const<mode>): Delete.
10267         * config/mips/mips-msa.md (vec_perm_const<mode>): Delete.
10268         * config/mips/mips-ps-3d.md (vec_perm_constv2sf): Delete.
10269         * config/mips/mips-protos.h (mips_expand_vec_perm_const): Delete.
10270         * config/mips/mips.c (mips_expand_vec_perm_const)
10271         (mips_vectorize_vec_perm_const_ok): Merge into...
10272         (mips_vectorize_vec_perm_const): ...this new function.
10273         * config/powerpcspe/altivec.md (vec_perm_constv16qi): Delete.
10274         * config/powerpcspe/paired.md (vec_perm_constv2sf): Delete.
10275         * config/powerpcspe/spe.md (vec_perm_constv2si): Delete.
10276         * config/powerpcspe/vsx.md (vec_perm_const<mode>): Delete.
10277         * config/powerpcspe/powerpcspe-protos.h (altivec_expand_vec_perm_const)
10278         (rs6000_expand_vec_perm_const): Delete.
10279         * config/powerpcspe/powerpcspe.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK):
10280         Delete.
10281         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
10282         (altivec_expand_vec_perm_const_le): Take each operand individually.
10283         Operate on constant selectors rather than rtxes.
10284         (altivec_expand_vec_perm_const): Likewise.  Update call to
10285         altivec_expand_vec_perm_const_le.
10286         (rs6000_expand_vec_perm_const): Delete.
10287         (rs6000_vectorize_vec_perm_const_ok): Delete.
10288         (rs6000_vectorize_vec_perm_const): New function.
10289         (rs6000_do_expand_vec_perm): Take a vec_perm_builder instead of
10290         an element count and rtx array.
10291         (rs6000_expand_extract_even): Update call accordingly.
10292         (rs6000_expand_interleave): Likewise.
10293         * config/rs6000/altivec.md (vec_perm_constv16qi): Delete.
10294         * config/rs6000/paired.md (vec_perm_constv2sf): Delete.
10295         * config/rs6000/vsx.md (vec_perm_const<mode>): Delete.
10296         * config/rs6000/rs6000-protos.h (altivec_expand_vec_perm_const)
10297         (rs6000_expand_vec_perm_const): Delete.
10298         * config/rs6000/rs6000.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
10299         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
10300         (altivec_expand_vec_perm_const_le): Take each operand individually.
10301         Operate on constant selectors rather than rtxes.
10302         (altivec_expand_vec_perm_const): Likewise.  Update call to
10303         altivec_expand_vec_perm_const_le.
10304         (rs6000_expand_vec_perm_const): Delete.
10305         (rs6000_vectorize_vec_perm_const_ok): Delete.
10306         (rs6000_vectorize_vec_perm_const): New function.  Remove stray
10307         reference to the SPE evmerge intructions.
10308         (rs6000_do_expand_vec_perm): Take a vec_perm_builder instead of
10309         an element count and rtx array.
10310         (rs6000_expand_extract_even): Update call accordingly.
10311         (rs6000_expand_interleave): Likewise.
10312         * config/sparc/sparc.md (vec_perm_constv8qi): Delete in favor of...
10313         * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): ...this
10314         new function.
10315         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
10316
10317 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
10318
10319         * optabs.c (expand_vec_perm_1): Assert that SEL has an integer
10320         vector mode and that that mode matches the mode of the data
10321         being permuted.
10322         (expand_vec_perm): Split handling of non-CONST_VECTOR selectors
10323         out into expand_vec_perm_var.  Do all CONST_VECTOR handling here,
10324         directly using expand_vec_perm_1 when forcing selectors into
10325         registers.
10326         (expand_vec_perm_var): New function, split out from expand_vec_perm.
10327
10328 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
10329
10330         * optabs-query.h (can_vec_perm_p): Delete.
10331         (can_vec_perm_var_p, can_vec_perm_const_p): Declare.
10332         * optabs-query.c (can_vec_perm_p): Split into...
10333         (can_vec_perm_var_p, can_vec_perm_const_p): ...these two functions.
10334         (can_mult_highpart_p): Use can_vec_perm_const_p to test whether a
10335         particular selector is valid.
10336         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
10337         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
10338         (vect_grouped_load_supported): Likewise.
10339         (vect_shift_permute_load_chain): Likewise.
10340         * tree-vect-slp.c (vect_build_slp_tree_1): Likewise.
10341         (vect_transform_slp_perm_load): Likewise.
10342         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
10343         (vectorizable_bswap): Likewise.
10344         (vect_gen_perm_mask_checked): Likewise.
10345         * fold-const.c (fold_ternary_loc): Likewise.  Don't take
10346         implementations of variable permutation vectors into account
10347         when deciding which selector to use.
10348         * tree-vect-loop.c (have_whole_vector_shift): Don't check whether
10349         vec_perm_const_optab is supported; instead use can_vec_perm_const_p
10350         with a false third argument.
10351         * tree-vect-generic.c (lower_vec_perm): Use can_vec_perm_const_p
10352         to test whether the constant selector is valid and can_vec_perm_var_p
10353         to test whether a variable selector is valid.
10354
10355 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
10356
10357         * optabs-query.h (can_vec_perm_p): Take a const vec_perm_indices *.
10358         * optabs-query.c (can_vec_perm_p): Likewise.
10359         * fold-const.c (fold_vec_perm): Take a const vec_perm_indices &
10360         instead of vec_perm_indices.
10361         * tree-vectorizer.h (vect_gen_perm_mask_any): Likewise,
10362         (vect_gen_perm_mask_checked): Likewise,
10363         * tree-vect-stmts.c (vect_gen_perm_mask_any): Likewise,
10364         (vect_gen_perm_mask_checked): Likewise,
10365
10366 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
10367
10368         * optabs-query.h (qimode_for_vec_perm): Declare.
10369         * optabs-query.c (can_vec_perm_p): Split out qimode search to...
10370         (qimode_for_vec_perm): ...this new function.
10371         * optabs.c (expand_vec_perm): Use qimode_for_vec_perm.
10372
10373 2018-01-02  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
10374
10375         * rtlanal.c (canonicalize_condition): Return 0 if final rtx
10376         does not have a conditional at the top.
10377
10378 2018-01-02  Richard Biener  <rguenther@suse.de>
10379
10380         * ipa-inline.c (big_speedup_p): Fix expression.
10381
10382 2018-01-02  Jan Hubicka  <hubicka@ucw.cz>
10383
10384         PR target/81616
10385         * config/i386/x86-tune-costs.h: Increase cost of integer load costs
10386         for generic 4->6.
10387
10388 2018-01-02  Jan Hubicka  <hubicka@ucw.cz>
10389
10390         PR target/81616
10391         Generic tuning.
10392         * x86-tune-costs.h (generic_cost): Reduce cost of FDIV 20->17,
10393         cost of sqrt 20->14, DIVSS 18->13, DIVSD 32->17, SQRtSS 30->14
10394         and SQRTsD 58->18, cond_not_taken_branch_cost. 2->1. Increase
10395         cond_taken_branch_cost 3->4.
10396
10397 2018-01-01  Jakub Jelinek  <jakub@redhat.com>
10398
10399         PR tree-optimization/83581
10400         * tree-loop-distribution.c (pass_loop_distribution::execute): Return
10401         TODO_cleanup_cfg if any changes have been made.
10402
10403         PR middle-end/83608
10404         * expr.c (store_expr_with_bounds): Use simplify_gen_subreg instead of
10405         convert_modes if target mode has the right side, but different mode
10406         class.
10407
10408         PR middle-end/83609
10409         * expr.c (expand_assignment): Fix up a typo in simplify_gen_subreg
10410         last argument when extracting from CONCAT.  If either from_real or
10411         from_imag is NULL, use expansion through memory.  If result is not
10412         a CONCAT and simplify_gen_subreg fails, try to simplify_gen_subreg
10413         the parts directly to inner mode, if even that fails, use expansion
10414         through memory.
10415
10416         PR middle-end/83623
10417         * expmed.c (expand_shift_1): For 2-byte rotates by BITS_PER_UNIT,
10418         check for bswap in mode rather than HImode and use that in expand_unop
10419         too.
10420 \f
10421 Copyright (C) 2018 Free Software Foundation, Inc.
10422
10423 Copying and distribution of this file, with or without modification,
10424 are permitted in any medium without royalty provided the copyright
10425 notice and this notice are preserved.