gcc/ChangeLog

   1 2018-05-01  Tom de Vries  <tom@codesourcery.com>
   2
   3         PR other/83786
   4         * vec.h (VEC_ORDERED_REMOVE_IF, VEC_ORDERED_REMOVE_IF_FROM_TO): Define.
   5         * vec.c (test_ordered_remove_if): New function.
   6         (vec_c_tests): Call test_ordered_remove_if.
   7         * dwarf2cfi.c (connect_traces): Use VEC_ORDERED_REMOVE_IF_FROM_TO.
   8         * lto-streamer-out.c (prune_offload_funcs): Use VEC_ORDERED_REMOVE_IF.
   9         * tree-vect-patterns.c (vect_pattern_recog_1): Use
  10         VEC_ORDERED_REMOVE_IF.
  11
  12 2018-05-01  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
  13
  14         PR tree-optimization/82665
  15         * vr-values.c (vr_values::extract_range_from_binary_expr): Handle
  16         pointer subtraction where arguments come from a memchr call.
  17
  18 2018-05-01  Jakub Jelinek  <jakub@redhat.com>
  19
  20         * configure.ac (LD_AS_NEEDED_OPTION, LD_NO_AS_NEEDED_OPTION): Use
  21         --push-state --as-needed and --pop-state instead of --as-needed and
  22         --no-as-needed if ld supports it.
  23         * configure: Regenerated.
  24
  25         PR web/85578
  26         * doc/install.texi2html: Replace _002d with - and _002a with * in
  27         generated html files using sed.
  28
  29 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
  30
  31         PR c++/85523
  32         * gcc-rich-location.c (blank_line_before_p): New function.
  33         (use_new_line): New function.
  34         (gcc_rich_location::add_fixit_insert_formatted): New function.
  35         * gcc-rich-location.h
  36         (gcc_rich_location::add_fixit_insert_formatted): New function.
  37
  38 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
  39
  40         * selftest.c (assert_streq): Rename "expected" and "actual" to
  41         "val1" and "val2".  Extend NULL-handling to cover both inputs
  42         symmetrically, while still requiring both to be non-NULL for a pass.
  43         * selftest.h (assert_streq): Rename "expected" and "actual" to
  44         "val1" and "val2".
  45         (ASSERT_EQ): Likewise.
  46         (ASSERT_EQ_AT): Likewise.
  47         (ASSERT_KNOWN_EQ): Likewise.
  48         (ASSERT_KNOWN_EQ_AT): Likewise.
  49         (ASSERT_NE): Likewise.
  50         (ASSERT_MAYBE_NE): Likewise.
  51         (ASSERT_MAYBE_NE_AT): Likewise.
  52         (ASSERT_STREQ): Likewise.  Clarify that both must be non-NULL for
  53         the assertion to pass.
  54         (ASSERT_STREQ_AT): Likewise.
  55
  56 2018-04-30  Jonathan Wakely  <jwakely@redhat.com>
  57
  58         * doc/invoke.texi (-fpie, -fPIE): Fix grammar and clarify
  59         interaction with -pie.
  60
  61 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
  62
  63         * selftest.h: Fix alphabetization of per-source-file selftest
  64         declarations.
  65
  66 2018-04-30  Jason Merrill  <jason@redhat.com>
  67
  68         PR c++/61982 - dead stores to destroyed objects.
  69         * gimplify.c (gimplify_modify_expr): Simplify complex lvalue on LHS
  70         of clobber.
  71
  72 2018-04-30  Jason Merrill  <jason@redhat.com>
  73
  74         * tree.c (build_clobber): New.
  75         * tree.h: Declare it.
  76         * gimplify.c (gimplify_bind_expr, gimplify_target_expr): Use it.
  77
  78 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
  79
  80         * diagnostic-show-locus.c (layout::layout): Update for
  81         location_get_source_line returning a char_span.
  82         (struct char_span): Move to input.h.
  83         (struct correction): Update for fields in char_span becoming
  84         private.
  85         (struct source_line): Update for location_get_source_line
  86         returning a char_span.
  87         (layout::print_line): Likewise.
  88         * edit-context.c (edited_file::print_content): Likewise.
  89         (edited_file::print_diff_hunk): Likewise.
  90         (edited_file::print_run_of_changed_lines): Likewise.
  91         (edited_file::get_num_lines): Likewise.
  92         (edited_line::edited_line): Likewise.
  93         * final.c (asm_show_source): Likewise.
  94         * input.c (location_get_source_line): Convert return type
  95         from const char * to char_span, losing the final "line_len"
  96         param.
  97         (dump_location_info): Update for the above.
  98         (get_substring_ranges_for_loc): Likewise.  Use a char_span
  99         when handling the literal within the line.
 100         (test_reading_source_line): Update for location_get_source_line
 101         returning a char_span.
 102         * input.h (class char_span): Move here from
 103         diagnostic-show-locus.c, converting from a struct to a class.
 104         Make data members private.
 105         (char_span::operator bool): New.
 106         (char_span::length): New.
 107         (char_span::get_buffer): New.
 108         (char_span::operator[]): New.
 109         (char_span::subspan): Make const.
 110         (char_span::xstrdup): New.
 111         (location_get_source_line): Convert return type from const char *
 112         to char_span, losing the final "line_size" param.
 113
 114 2018-04-30  Jan Hubicka  <jh@suse.cz>
 115
 116         * lto-wrapper.c (ltrans_priorities): New static var.
 117         (cmp_priority): New.
 118         (run_gcc): Read priorities and if doing parallel build order
 119         the Makefile by them.
 120
 121 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
 122
 123         * input.h (builtins_location_check): Convert to a STATIC_ASSERT.
 124
 125 2018-04-30  Richard Biener  <rguenther@suse.de>
 126
 127         * tree-cfg.c (verify_address): Remove base argument, add
 128         flag whether to check TREE_ADDRESSABLE and do that.
 129         (verify_expr): Remove.
 130         (verify_types_in_gimple_reference): Add pieces from verify_expr.
 131         (verify_gimple_assign_single): Likewise.
 132         (verify_gimple_switch): Likewise.
 133         (verify_expr_location_1): Dereference tp once.  Add (disabled)
 134         piece from verify_expr.
 135         (verify_gimple_in_cfg): Do not call verify_expr on all ops.
 136
 137 2018-04-30  Claudiu Zissulescu  <claziss@synopsys.com>
 138
 139         * config/arc/linux.h (CLEAR_INSN_CACHE): Define.
 140
 141 2018-04-30  Claudiu Zissulescu  <claziss@synopsys.com>
 142
 143         * config/arc/arc-protos.h (prepare_extend_operands): Remove.
 144         (small_data_pattern): Likewise.
 145         (arc_rewrite_small_data): Likewise.
 146         * config/arc/arc.c (LEGITIMATE_SMALL_DATA_OFFSET_P): Remove.
 147         (LEGITIMATE_SMALL_DATA_ADDRESS_P): Likewise.
 148         (get_symbol_alignment): New function.
 149         (legitimate_small_data_address_p): Likewise.
 150         (legitimate_scaled_address): Update, call
 151         legitimate_small_data_address_p.
 152         (output_sdata): New static variable.
 153         (arc_print_operand): Update how we handle small data operands.
 154         (arc_print_operand_address): Likewise.
 155         (arc_legitimate_address_p): Update, use
 156         legitimate_small_data_address_p.
 157         (arc_rewrite_small_data_p): Remove.
 158         (arc_rewrite_small_data_1): Likewise.
 159         (arc_rewrite_small_data): Likewise.
 160         (small_data_pattern): Likewise.
 161         (compact_sda_memory_operand): Update to use
 162         legitimate_small_data_address_p and get_symbol_alignment.
 163         (prepare_move_operands): Don't rewite sdata pattern.
 164         (prepare_extend_operands): Remove.
 165         * config/arc/arc.md (zero_extendqihi2): Don't rewrite sdata
 166         pattern.
 167         (zero_extendqisi2): Likewise.
 168         (zero_extendhisi2): Likewise.
 169         (extendqihi2): Likewise.
 170         (extendqisi2): Likewise.
 171         (extendhisi2): Likewise.
 172         (addsi3): Likewise.
 173         (subsi3): Likewise.
 174         (andsi3): Likewise.
 175         * config/arc/constraints.md (Usd): Change it to memory constraint.
 176
 177 2018-04-30  Claudiu Zissulescu  <claziss@synopsys.com>
 178
 179         * config/arc/arc.c (arc_split_move): Allow signed 6-bit constants
 180         as source of std instructions.
 181         * config/arc/arc.md (movsi_insn): Update pattern predicate to
 182         allow 6-bit constants as source for store instructions.
 183         (movdi_insn): Update instruction pattern to allow 6-bit constants
 184         as source for store instructions.
 185
 186 2018-04-30  Jonathan Wakely  <jwakely@redhat.com>
 187
 188         * doc/invoke.texi (-fdebug-types-section): Fix grammar.
 189
 190 2018-04-30  Nathan Sidwell  <nathan@acm.org>
 191             Sandra Loosemore <sandra@codesourcery.com>
 192
 193         * dumpfile.c (dump_open): Allow '-' for stdout.
 194         * doc/invoke.texi (Developer Options): Document dump filename
 195         determination early.  Document stdin/stdout selection.
 196
 197 2018-04-30 Andrew Sadek  <andrew.sadek.se@gmail.com>
 198
 199         Microblaze Target: PIC data text relative
 200
 201         * config/microblaze/microblaze.opt: add new option -mpic-data-text-rel.
 202         * config/microblaze/microblaze-protos.h (microblaze_constant_address_p):
 203         Add declaration.
 204         * gcc/config/microblaze/microblaze.h (microblaze_constant_address_p):
 205         CONSTANT_ADDRESS_P definition to microblaze_constant_address_p.
 206         * config/microblaze/microblaze.c (TARGET_PIC_DATA_TEXT_REL):
 207         New addressing mode for data-text relative position indepenedent code.
 208         (microblaze_classify_unspec): add 'UNSPEC_TEXT' case ->
 209         'ADDRESS_SYMBOLIC_TXT_REL'.
 210         (microblaze_classify_address): Add handling for UNSPEC + CONST_INT.
 211         (microblaze_legitimate_pic_operand): Exclude function calls from
 212         pic operands in case of TARGET_PIC_DATA_TEXT_REL option.
 213         (microblaze_legitimize_address): Generate 'UNSPEC_TEXT' for all possible
 214         addresses cases.
 215         (microblaze_address_insns): Add 'ADDRESS_SYMBOLIC_TXT_REL' case.
 216         (print_operand): Add 'ADDRESS_SYMBOLIC_TXT_REL' case.
 217         (print_operand_address): Add 'ADDRESS_SYMBOLIC_TXT_REL' case + handling
 218         for 'address + offset'.
 219         (microblaze_expand_prologue): Add new function prologue call for
 220         'r20' assignation.
 221         (microblaze_asm_generate_pic_addr_dif_vec): Override new target hook
 222         'TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC' to disable address diff vector
 223         table in case of TARGET_PIC_DATA_TEXT_REL.
 224         (expand_pic_symbol_ref): Add handling for 'UNSPEC_TEXT'.
 225         * gcc/config/microblaze/microblaze.md (TARGET_PIC_DATA_TEXT_REL):
 226         Add new macros 'UNSPEC_TEXT',
 227         'UNSPEC_SET_TEXT' + add rule for setting r20 in function prologue
 228         + exclude function calls from 'UNSPEC_PLT' in case of data text
 229         relative mode.
 230         * doc/tm.texi.in (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC): Add
 231         new target hook for generating address diff vector tables in case of
 232         flag_pic.
 233         * doc/tm.texi : Regenerate.
 234         * stmt.c (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC): Append new condition
 235         'targetm.asm_out.generate_pic_addr_diff_vec' to flag_pic in case
 236         of addr diff vector generation.
 237         * target.def (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC): Add
 238         target hook definition.
 239         * targhooks.h, gcc/targhooks.c (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC):
 240         Add default function for generate_pic_addr_diff_vec -> flag_pic.
 241         * doc/invoke.texi (Add new pic option): Add new microblaze pic
 242         option for data text relative.
 243
 244 2018-04-30  Richard Biener  <rguenther@suse.de>
 245
 246         * tree-chrec.h (evolution_function_is_constant_p): Remove
 247         redundant check.
 248         * tree-cfg.c (tree_node_can_be_shared): Re-order checks.
 249
 250 2018-04-30  Richard Biener  <rguenther@suse.de>
 251
 252         PR bootstrap/85571
 253         * dwarf2out.c (gen_producer_string): Ignore -fchecking[=].
 254
 255 2018-04-30  Richard Biener  <rguenther@suse.de>
 256
 257         PR tree-optimization/28364
 258         PR tree-optimization/85275
 259         * tree-ssa-loop-ch.c (ch_base::copy_headers): Stop after
 260         copying first exit test.
 261
 262 2018-04-28  Mark Wielaard  <mark@klomp.org>
 263
 264         * dwarf2out.c (dwarf2out_finish): Add .debug_addr table header for
 265         dwarf_version >= 5.
 266         (dwarf_AT): Handle DW_AT_addr_base.
 267         (add_top_level_skeleton_die_attrs): Use dwarf_AT for DW_AT_addr_base.
 268
 269 2018-04-28  Uros Bizjak  <ubizjak@gmail.com>
 270
 271         PR target/84431
 272         * config/i386/i386.md (*ashl<dwi>3_doubleword_mask): New pattern.
 273         (*ashl<dwi>3_doubleword_mask_1): Ditto.
 274         (*<shift_insn><dwi>3_doubleword_mask): Ditto.
 275         (*<shift_insn><dwi>3_doubleword_mask_1): Ditto.
 276
 277 2018-04-28  Richard Biener  <rguenther@suse.de>
 278
 279         * tree-cfg.c (verify_gimple_phi): Take a gphi * argument.
 280         (verify_gimple_in_cfg): Rename visited_stmts to visited_throwing_stmts
 281         to reflect use.  Only add interesting stmts.
 282
 283 2018-04-27  Martin Jambor  <mjambor@suse.cz>
 284
 285         PR ipa/85549
 286         * ipa-cp.c (find_aggregate_values_for_callers_subset): Make sure
 287         the jump function allows for passing through aggregate values.
 288
 289 2018-04-27  David Malcolm  <dmalcolm@redhat.com>
 290
 291         * input.h (in_system_header_at): Convert from macro to inline
 292         function.
 293         (from_macro_expansion_at): Likewise.
 294         (from_macro_definition_at): Likewise.
 295
 296 2018-04-27  Jeff Law  <law@redhat.com>
 297
 298         * config.gcc: Mark tile* targets as deprecated/obsolete.
 299
 300 2018-04-27  Richard Biener  <rguenther@suse.de>
 301
 302         * config/aarch64/aarch64.c: Simplify ap.__stack advance and
 303         fix for ILP32.
 304
 305 2018-04-27  Richard Biener  <rguenther@suse.de>
 306
 307         * tree-cfg.c (verify_expr): Make dead code hit gcc_unreachable.
 308
 309 2018-04-27  Uros Bizjak  <ubizjak@gmail.com>
 310
 311         * config/i386/i386.md (*movti_internal): Substitute Ye constraint
 312         with Yd constraint. Set "preferred_for_speed" attribute from
 313         TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC for alternatives
 314         with Yd constraint.
 315         (*movdi_internal): Ditto.
 316         (movti_interunit splitters): Remove
 317         TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC from insn condition.
 318         (movdi_interunit splitters): Ditto.
 319         * config/i386/constraints.md (Ye): Remove.
 320         (Yd): Do not depend on TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC.
 321
 322 2018-04-27  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 323
 324         PR target/85512
 325         * config/aarch64/constraints.md (Usg): Limit to 31.
 326         (Usj): Limit to 63.
 327
 328 2018-04-27  Jakub Jelinek  <jakub@redhat.com>
 329
 330         PR tree-optimization/85529
 331         * tree-ssa-reassoc.c (optimize_range_tests_var_bound): Add FIRST_BB
 332         argument.  Don't call get_nonzero_bits if opcode is ERROR_MARK_NODE,
 333         rhs2 def stmt's bb is dominated by first_bb and it isn't an obvious
 334         zero extension or masking of the MSB bit.
 335         (optimize_range_tests): Add FIRST_BB argument, pass it through
 336         to optimize_range_tests_var_bound.
 337         (maybe_optimize_range_tests, reassociate_bb): Adjust
 338         optimize_range_tests callers.
 339
 340 2018-04-26  Richard Biener  <rguenther@suse.de>
 341             Jakub Jelinek  <jakub@redhat.com>
 342
 343         * cgraph.h (symbol_table): Just declare debug method here.
 344         * symtab.c (symbol_table::debug): Define.
 345
 346 2018-04-26  Eric Botcazou  <ebotcazou@adacore.com>
 347
 348         * loop-invariant.c (may_assign_reg_p): Return false for frame pointer.
 349
 350 2018-04-26  Uros Bizjak  <ubizjak@gmail.com>
 351
 352         * config/i386/i386.md ("isa" attribute): Add x64_sse2.
 353         ("enabled" attribute): Handle x64_sse2 "isa" attribute.
 354         (*movdi_internal): Substitute Yi and Yj constraint with x
 355         and Ym and Yn constraint with y constraint.  Update "isa"
 356         attribute and set "preferred_for_speed" attribute from
 357         TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC for updated alternatives.
 358         (*movsi_internal): Ditto.
 359         (*movdf_internal): Ditto.
 360         (*movsf_internal): Ditto.
 361         (*zero_extendsidi2): Ditto.
 362         * config/i386/sse.md (vec_set<mode>_0): Ditto.
 363         (sse2_loadld): Ditto.
 364         (*vec_extract<ssevecmodelower>_0): Ditto.
 365         (*vec_extractv4si_0_zext_sse4): Ditto.
 366         (vec_concatv2di): Ditto.
 367         (*vec_dup<mode>): Ditto.
 368         * config/i386/mmx.md (*mov<mode>_internal): Ditto.
 369         * config/i386/constraints.md (Yi): Remove.
 370         (Yj): Remove.
 371         (Ym): Remove.
 372         (Yn): Remove.
 373
 374 2018-04-26  Nathan Sidwell  <nathan@acm.org>
 375
 376         * dumpfile.c (dump_open): New.
 377         (dump_open_alternate_stream, dump_start, dump_begin): Call it.
 378         (dump_finish): Detect stdio/stderr by value not name.
 379
 380 2018-04-26  Jonathan Wakely  <jwakely@redhat.com>
 381
 382         * doc/invoke.texi (-Wreturn-type): Document default status for C++.
 383
 384 2018-04-26  Tom de Vries  <tom@codesourcery.com>
 385
 386         PR target/84952
 387         * config/nvptx/nvptx.c (verify_neutering_jumps)
 388         (verify_neutering_labels): New function
 389         (nvptx_single): Use verify_neutering_jumps and verify_neutering_labels.
 390
 391 2018-04-26  Tom de Vries  <tom@codesourcery.com>
 392
 393         PR target/84025
 394         * config/nvptx/nvptx.c (needs_neutering_p): New function.
 395         (nvptx_single): Use needs_neutering_p to skip over insns that do not
 396         need neutering.
 397
 398 2018-04-26  Richard Biener <rguenther@suse.de>
 399             Tom de Vries  <tom@codesourcery.com>
 400
 401         PR lto/85422
 402         * lto-streamer-out.c (output_function): Fixup loops if required to match
 403         discovery done in the reader.
 404
 405 2018-04-26  Richard Biener  <rguenther@suse.de>
 406
 407         PR tree-optimization/85116
 408         * tree-ssa-loop-ch.c (do_while_loop_p): A do-while loop should
 409         have a loop exit from the single latch predecessor.  Remove
 410         case of header with just condition.
 411         (ch_base::copy_headers): Exclude infinite loops from any
 412         processing.
 413         (pass_ch::execute): Record exits.
 414
 415 2018-04-26  Richard Biener  <rguenther@suse.de>
 416
 417         * tree-vect-data-refs.c (vect_get_data_access_cost): Get
 418         prologue cost vector and pass it to vect_get_load_cost.
 419         (vect_get_peeling_costs_all_drs): Likewise.
 420         (vect_peeling_hash_get_lowest_cost): Likewise.
 421         (vect_enhance_data_refs_alignment): Likewise.
 422
 423 2018-04-26  Richard Biener  <rguenther@suse.de>
 424
 425         PR middle-end/85450
 426         * tree-cfg.c (verify_gimple_assign_unary): Restore proper
 427         checking of integer<->pointer conversions.
 428         * omp-expand.c (expand_omp_for_static_nochunk): Avoid
 429         sign-/zero-extending pointer types.
 430         (expand_omp_for_static_chunk): Likewise.
 431
 432 2018-03-22  Hans-Peter Nilsson  <hp@axis.com>
 433             Jean Lee  <xiaoyur347@gmail.com>
 434
 435         * config/mips/mips.c (mips_asan_shadow_offset): New function.
 436         (TARGET_ASAN_SHADOW_OFFSET): Define.
 437         * config/mips/mips.h (FRAME_GROWS_DOWNWARD): Augment to also be
 438         true for -fsanitize=address.
 439
 440 2018-04-25  Mark Wielaard  <mark@klomp.org>
 441
 442         * dwarf2out.c (file_info_cmp): Sort longer dir prefixes before
 443         shorter ones.
 444
 445 2018-04-25  Jakub Jelinek  <jakub@redhat.com>
 446
 447         * config/i386/i386.md (*x86_mov<mode>cc_0_m1): Use type "alu1" rather
 448         than "alu", remove explicit "memory" and "imm_disp" attributes.
 449         (*x86_mov<mode>cc_0_m1_se, *x86_mov<mode>cc_0_m1_neg): Likewise.
 450
 451         PR middle-end/85414
 452         * simplify-rtx.c (simplify_unary_operation_1) <case SIGN_EXTEND,
 453         case ZERO_EXTEND>: Pass SUBREG_REG (op) rather than op to
 454         gen_lowpart_no_emit.
 455
 456 2018-04-25  Sebastian Peryt  <sebastian.peryt@intel.com>
 457
 458         PR target/85473
 459         * config/i386/i386.c (ix86_expand_builtin): Change memory
 460         operand to XI, extend p0 to Pmode.
 461         * config/i386/i386.md: Change unspec volatile and operand
 462         1 mode to XI, change operand 0 mode to P.
 463
 464 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
 465
 466         * config/nds32/nds32-predicates.c (nds32_can_use_bclr_p): Mask with
 467         GET_MODE_MASK before any checking.
 468         (nds32_can_use_bset_p): Likewise.
 469         (nds32_can_use_btgl_p): Likewise.
 470
 471 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
 472
 473         * config/nds32/nds32-doubleword.md: New define_split pattern for
 474         illegal register number.
 475
 476 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
 477
 478         * config/nds32/nds32.c (nds32_print_operand): Set op_value ealier.
 479
 480 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
 481
 482         * config/nds32/nds32.h (ASM_APP_ON): Add missing newline character.
 483
 484 2018-04-25  Richard Biener  <rguenther@suse.de>
 485
 486         * lto-streamer.h (LTO_major_version): Bump to 8.
 487
 488 2018-04-25  Jakub Jelinek  <jakub@redhat.com>
 489
 490         * BASE-VER: Set to 9.0.0.
 491
 492 2018-04-24  Segher Boessenkool  <segher@kernel.crashing.org>
 493
 494         * config/rs6000/rs6000.c (init_float128_ieee): Fix spelling mistakes
 495         in __abskf2 and __powikf2.
 496
 497 2018-04-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 498
 499         PR target/85512
 500         * config/aarch64/constraints.md (Usg, Usj): New constraints.
 501         * config/aarch64/iterators.md (cmode_simd): New mode attribute.
 502         * config/aarch64/aarch64.md (*aarch64_ashr_sisd_or_int_<mode>3):
 503         Use the above on operand 2.  Reindent.
 504         (*aarch64_lshr_sisd_or_int_<mode>3): Likewise.
 505
 506 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
 507
 508         PR target/85485
 509         * common/config/i386/i386-common.c (ix86_handle_option): Don't
 510         handle OPT_mcet.
 511         * config/i386/i386.opt (mcet): Removed.
 512         * doc/install.texi: Remove -mcet documentation.
 513         * doc/invoke.texi: Likewise.
 514
 515 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
 516
 517         PR target/85485
 518         * doc/install.texi: Remove -mcet from bootstrap-cet.
 519
 520 2018-04-24  Jakub Jelinek  <jakub@redhat.com>
 521
 522         PR target/85511
 523         * config/i386/i386.c (ix86_init_mmx_sse_builtins): Don't define
 524         __builtin_ia32_readeflags_u32 and __builtin_ia32_writeeflags_u32
 525         if TARGET_64BIT.
 526
 527         PR target/85503
 528         * config/rs6000/rs6000-p8swap.c (const_load_sequence_p): Punt if
 529         const_vector is not CONST_VECTOR or SYMBOL_REF for a constant pool
 530         containing a CONST_VECTOR.
 531
 532 2018-04-24  Cesar Philippidis  <cesar@codesourcery.com>
 533
 534         * doc/install.texi: Update newlib dependency for nvptx.
 535
 536 2018-04-24  Jakub Jelinek  <jakub@redhat.com>
 537
 538         PR target/85508
 539         * config/i386/i386.c (ix86_expand_vector_init_one_var): Use UINTVAL
 540         instead of INTVAL when shifting x left.
 541
 542 2018-04-24  Andreas Krebbel  <krebbel@linux.ibm.com>
 543
 544         PR tree-optimization/85478
 545         * tree-vect-loop.c (vect_analyze_loop_2): Do not call
 546         vect_grouped_store_supported for single element vectors.
 547
 548 2018-04-24  Richard Biener  <rguenther@suse.de>
 549
 550         PR target/85491
 551         * config/i386/i386.c (ix86_add_stmt_cost): Restrict strided
 552         load cost increase to the case of non-constant step.
 553
 554 2018-04-24  Jakub Jelinek  <jakub@redhat.com>
 555
 556         PR target/84828
 557         * reg-stack.c (move_for_stack_reg): Don't fail assertion about dead
 558         destination if any_malformed_asm.
 559
 560 2018-04-23  Eric Botcazou  <ebotcazou@adacore.com>
 561
 562         PR middle-end/85496
 563         * expr.c (store_field): In the bitfield case, if the value comes from
 564         a function call and is returned in registers by means of a PARALLEL,
 565         do not change the mode of the temporary unless BLKmode and VOIDmode.
 566
 567 2018-04-23  Andrey Belevantsev  <abel@ispras.ru>
 568
 569         PR rtl-optimization/85423
 570         * sel-sched-ir.c (has_dependence_note_mem_dep): Only discard
 571         dependencies to debug insns when the previous insn is non-debug.
 572
 573 2018-04-23  Claudiu Zissulescu  <claziss@synopsys.com>
 574
 575         * config/arc/arc.md ("vunspec"): Delete it, unify all the unspec
 576         enums into a single definition.
 577         (fls): Fix predicates and printing.
 578         (seti): Likewise.
 579
 580 2018-04-23  Claudiu Zissulescu  <claziss@synopsys.com>
 581
 582         * config/arc/arc-protos.h (check_if_valid_sleep_operand): Remove.
 583         * config/arc/arc.c (arc_expand_builtin): Sleep accepts registers
 584         and short u6 immediate.
 585         (check_if_valid_sleep_operand): Remove.
 586         * config/arc/arc.md (Sleep): Accepts registers and u6 immediates.
 587
 588 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
 589
 590         * config/nds32/nds32.c (nds32_compute_stack_frame): Consider
 591         flag_always_save_lp condition.
 592         * config/nds32/nds32.opt (malways-save-lp): New option.
 593
 594 2018-04-22  Shiva Chen  <shiva0217@gmail.com>
 595
 596         * config/nds32/nds32-protos.h (nds32_use_load_post_increment): Declare.
 597         * config/nds32/nds32.c (nds32_use_load_post_increment): New.
 598         * config/nds32/nds32.h
 599         (USE_LOAD_POST_INCREMENT, USE_LOAD_POST_DECREMENT): Define.
 600         (USE_STORE_POST_INCREMENT, USE_STORE_POST_DECREMENT): Define.
 601
 602 2018-04-22  Shiva Chen  <shiva0217@gmail.com>
 603
 604         * config/nds32/nds32-protos.h (nds32_ls_333_p): Remove.
 605         * config/nds32/nds32.c (nds32_ls_333_p): Remove.
 606
 607 2018-04-22  Shiva Chen  <shiva0217@gmail.com>
 608             Chung-Ju Wu  <jasonwucj@gmail.com>
 609
 610         * config/nds32/nds32-protos.h (nds32_case_vector_shorten_mode):
 611         Declare.
 612         * config/nds32/nds32.c (nds32_case_vector_shorten_mode): New function.
 613         * config/nds32/nds32.h (CASE_VECTOR_SHORTEN_MODE): Modify.
 614
 615 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
 616
 617         * config/nds32/nds32.c (nds32_compute_stack_frame): Fix wrong value.
 618
 619 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
 620
 621         * config/nds32/nds32-protos.h (nds32_data_alignment,
 622         nds32_local_alignment): Declare.
 623         * config/nds32/nds32.c (nds32_data_alignment, nds32_constant_alignment,
 624         nds32_local_alignment): New functions.
 625         (TARGET_CONSTANT_ALIGNMENT): Define.
 626         * config/nds32/nds32.h (DATA_ALIGNMENT, LOCAL_ALIGNMENT): Define.
 627
 628 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
 629
 630         * config/nds32/nds32.c
 631         (TARGET_HARD_REGNO_MODE_OK): Move to the bottom of file.
 632         (TARGET_MODES_TIEABLE_P): Likewise.
 633
 634 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
 635
 636         * config/nds32/nds32.c (nds32_asm_file_start): Display optimization
 637         level Ofast and Og.
 638
 639 2018-04-22  Monk Chiang  <sh.chiang04@gmail.com>
 640             Chung-Ju Wu  <jasonwucj@gmail.com>
 641
 642         * config/nds32/constants.md (unspec_volatile_element): Add enum values
 643         for unaligned access.
 644         * config/nds32/nds32-intrinsic.c: Implementation of expanding
 645         unaligned access.
 646         * config/nds32/nds32-intrinsic.md: Likewise.
 647         * config/nds32/nds32_intrinsic.h: Likewise.
 648         * config/nds32/nds32.h (nds32_builtins): Likewise.
 649         * config/nds32/nds32.opt (munaligned-access): New option.
 650         * config/nds32/nds32.c (nds32_asm_file_start): Display
 651         flag_unaligned_access status.
 652
 653 2018-04-20  Kito Cheng  <kito.cheng@gmail.com>
 654
 655         * config/riscv/elf.h (LINK_SPEC): Pass --no-relax if
 656         -mno-relax is present.
 657         * config/riscv/linux.h (LINK_SPEC): Ditto.
 658
 659 2018-04-20  Martin Sebor  <msebor@redhat.com>
 660
 661         PR c/85365
 662         * gimple-fold.c (gimple_fold_builtin_strcpy): Suppress -Wrestrict
 663         for null pointers.
 664         (gimple_fold_builtin_stxcpy_chk): Same.
 665         * gimple-ssa-warn-restrict.c (check_bounds_or_overlap): Same.
 666
 667 2018-04-20  Michael Meissner  <meissner@linux.ibm.com>
 668
 669         PR target/85456
 670         * config/rs6000/rs6000.c (init_float128_ieee): Add support to call
 671         __powikf2 when long double is IEEE 128-bit.
 672
 673 2018-04-20  Kito Cheng  <kito.cheng@gmail.com>
 674
 675         * config/riscv/riscv.c (riscv_first_stack_step): Round up min
 676         step to make sure stack always aligned.
 677
 678 2018-04-20  Carl Love  <cel@us.ibm.com>
 679
 680         PR target/83402
 681         * config/rs6000/rs6000-c.c (rs6000_gimple_fold_builtin): Add
 682         size check for arg0.
 683
 684 2018-04-20  Nathan Sidwell  <nathan@codesourcery.com>
 685             Tom de Vries  <tom@codesourcery.com>
 686
 687         PR target/85445
 688         * config/nvptx/nvptx.c (nvptx_emit_forking, nvptx_emit_joining):
 689         Emit insns for calls too.
 690         (nvptx_find_par): Always look for worker-level predecessor insn.
 691         (nvptx_propagate): Add is_call parm, return bool.  Copy frame for
 692         calls.
 693         (nvptx_vpropagate, nvptx_wpropagate): Adjust.
 694         (nvptx_process_pars): Propagate frames for calls.
 695
 696 2018-04-20  H.J. Lu  <hongjiu.lu@intel.com>
 697
 698         PR target/85469
 699         * common/config/i386/i386-common.c (OPTION_MASK_ISA_IBT_SET):
 700         Removed.
 701         (OPTION_MASK_ISA_IBT_UNSET): Likewise.
 702         (ix86_handle_option): Don't handle OPT_mibt.
 703         * config/i386/cet.h: Check __CET__ instead of __IBT__ and
 704         __SHSTK__.
 705         * config/i386/driver-i386.c (host_detect_local_cpu): Remove
 706         has_ibt and ibt.
 707         * config/i386/i386-c.c (ix86_target_macros_internal): Don't
 708         check OPTION_MASK_ISA_IBT nor flag_cf_protection.
 709         (ix86_target_macros): Define __CET__ with flag_cf_protection
 710         for -fcf-protection.
 711         * config/i386/i386.c (isa2_opts): Remove -mibt.
 712         * config/i386/i386.h (TARGET_IBT): Removed.
 713         (TARGET_IBT_P): Likewise.
 714         (ix86_valid_target_attribute_inner_p): Don't check OPT_mibt.
 715         * config/i386/i386.md (nop_endbr): Don't check TARGET_IBT.
 716         * config/i386/i386.opt (mcet): Update help message.
 717         (mshstk): Likewise.
 718         (mibt): Removed.
 719         * doc/invoke.texi: Remove -mibt.  Document __CET__.  Document
 720         -mcet as an alias for -mshstk.
 721
 722 2018-04-20  Richard Biener <rguenther@suse.de>
 723
 724         PR middle-end/85475
 725         * match.pd ((X * CST) * Y -> (X * Y) * CST): Avoid exponential
 726         complexity by forcing a single use of the multiply operand.
 727
 728 2018-04-20  Martin Jambor  <mjambor@suse.cz>
 729
 730         ipa/85449
 731         * ipa-cp.c (cgraph_edge_brings_value_p): Move check for self-feeding
 732         recursion dependency to only apply to non-clones.
 733
 734 2018-04-20  Martin Jambor  <mjambor@suse.cz>
 735
 736         ipa/85447
 737         * ipa-cp.c (create_specialized_node): Check that clones of
 738         self-recursive edges exist during IPA-CP.
 739
 740 2018-04-19  Toon Moene  <toon@moene.org>
 741
 742         * doc/invoke.texi: Add -floop-unroll-and-jam to options enabled
 743         by -O3.
 744
 745 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
 746
 747         PR tree-optimization/85467
 748         * fold-const.c (fold_ternary_loc) <case BIT_FIELD_REF>: Use
 749         VECTOR_TYPE_P macro.  If type is vector type, VIEW_CONVERT_EXPR the
 750         VECTOR_CST element to type.
 751
 752 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
 753
 754         PR target/85397
 755         * config/i386/i386.h (STACK_SAVEAREA_MODE): New.
 756         * config/i386/i386.md (builtin_setjmp_setup): Removed.
 757         (builtin_longjmp): Likewise.
 758         (save_stack_nonlocal): New pattern.
 759         (restore_stack_nonlocal): Likewise.
 760
 761 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
 762
 763         PR target/85404
 764         * config/i386/cet.c (file_end_indicate_exec_stack_and_cet):
 765         Replace ASM_OUTPUT_LABEL with fprintf.
 766
 767 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
 768
 769         PR target/85417
 770         * config/i386/cet.c (file_end_indicate_exec_stack_and_cet):
 771         Check flag_cf_protection instead of TARGET_IBT and TARGET_SHSTK.
 772         * config/i386/i386-c.c (ix86_target_macros_internal): Also
 773         define __IBT__ and __SHSTK__ for -fcf-protection.
 774         * config/i386/i386.c (pass_insert_endbranch::gate): Don't check
 775         TARGET_IBT.
 776         (ix86_trampoline_init): Likewise.
 777         (x86_output_mi_thunk): Likewise.
 778         (ix86_notrack_prefixed_insn_p): Likewise.
 779         (ix86_option_override_internal): Don't disallow -fcf-protection.
 780         * config/i386/i386.md (rdssp<mode>): Also enable for
 781         -fcf-protection.
 782         (incssp<mode>): Likewise.
 783         (nop_endbr): Likewise.
 784         * config/i386/i386.opt (mcet): Change help message to built-in
 785         functions only.
 786         (mibt): Likewise.
 787         (mshstk): Likewise.
 788         * doc/invoke.texi: Remove -mcet, -mibt and -mshstk condition
 789         on -fcf-protection.  Change -mcet, -mibt and -mshstk to only
 790         enable CET built-in functions.
 791
 792 2018-04-19  Sebastian Peryt  <sebastian.peryt@intel.com>
 793
 794         * common/config/i386/i386-common.c
 795         (OPTION_MASK_ISA_MOVDIRI_SET, OPTION_MASK_ISA_MOVDIR64B_SET,
 796         OPTION_MASK_ISA_MOVDIRI_UNSET,
 797         OPTION_MASK_ISA_MOVDIR64B_UNSET): New defines.
 798         (ix86_handle_option): Handle -mmovdiri and -mmovdir64b.
 799         * config.gcc (movdirintrin.h): New header.
 800         * config/i386/cpuid.h (bit_MOVDIRI,
 801         bit_MOVDIR64B): New bits.
 802         * config/i386/driver-i386.c (host_detect_local_cpu): Detect -mmovdiri
 803         and -mmvodir64b.
 804         * config/i386/i386-builtin-types.def ((VOID, PUNSIGNED, UNSIGNED),
 805         (VOID, PVOID, PCVOID)): New function types.
 806         * config/i386/i386-builtin.def (__builtin_ia32_directstoreu_u32,
 807         __builtin_ia32_directstoreu_u64,
 808          __builtin_ia32_movdir64b): New builtins.
 809         * config/i386/i386-c.c (__MOVDIRI__, __MOVDIR64B__): New.
 810         * config/i386/i386.c (ix86_target_string): Added -mmovdir64b
 811         and -mmovdiri.
 812         (ix86_valid_target_attribute_inner_p): Ditto.
 813         (ix86_expand_special_args_builtin): Added VOID_FTYPE_PUNSIGNED_UNSIGNED
 814         and VOID_FTYPE_PUNSIGNED_UNSIGNED.
 815         (ix86_expand_builtin): Expand IX86_BUILTIN_MOVDIR64B.
 816         * config/i386/i386.h (TARGET_MOVDIRI, TARGET_MOVDIRI_P,
 817         TARGET_MOVDIR64B, TARGET_MOVDIR64B_P): New.
 818         * config/i386/i386.md (UNSPECV_MOVDIRI, UNSPECV_MOVDIR64B): New.
 819         (movdiri<mode>, movdir64b_<mode>): New.
 820         * config/i386/i386.opt: Add -mmovdiri and -mmovdir64b.
 821         * config/i386/immintrin.h: Include movdirintrin.h.
 822         * config/i386/movdirintrin.h: New file.
 823         * doc/invoke.texi: Added -mmovdiri and -mmovdir64b.
 824
 825 2018-04-19  Richard Biener  <rguenther@suse.de>
 826
 827         PR middle-end/85455
 828         * cfg.c (clear_bb_flags): When loop state says we have
 829         marked irreducible regions also preserve BB_IRREDUCIBLE_LOOP.
 830
 831 2018-04-19  Richard Biener  <rguenther@suse.de>
 832
 833         PR tree-optimization/84737
 834         * tree-vect-data-refs.c (vect_copy_ref_info): New function
 835         copying restrict info.
 836         (vect_setup_realignment): Use it.
 837         * tree-vectorizer.h (vect_copy_ref_info): Declare.
 838         * tree-vect-stmts.c (vectorizable_store): Copy ref info from
 839         the first DR to all generated stores.
 840         (vectorizable_load): Likewise for loads.
 841
 842 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
 843
 844         PR tree-optimization/85446
 845         * match.pd ((intptr_t) x eq/ne CST to x eq/ne (typeof x) cst): Require
 846         the integral and pointer types to have the same precision.
 847
 848         * doc/install.texi: Document --disable-cet being the default and
 849         --enable-cet=auto.
 850
 851 2018-04-18  Martin Liska  <mliska@suse.cz>
 852
 853         * ipa-devirt.c (odr_subtypes_equivalent_p): Fix GNU coding
 854         style.
 855
 856 2018-04-18  Martin Liska  <mliska@suse.cz>
 857
 858         Revert
 859         2018-03-02  Eric Botcazou  <ebotcazou@adacore.com>
 860
 861         PR ipa/83983
 862         * ipa-devirt.c (odr_subtypes_equivalent_p): Get the ODR type of both
 863         arguments if they are comparable.
 864
 865 2018-04-18  Martin Liska  <mliska@suse.cz>
 866
 867         Revert
 868         2018-03-13  Eric Botcazou  <ebotcazou@adacore.com>
 869
 870         PR lto/84805
 871         * ipa-devirt.c (odr_subtypes_equivalent_p): Do not get the ODR type of
 872         incomplete types.
 873
 874 2018-04-18  H.J. Lu  <hongjiu.lu@intel.com>
 875
 876         PR target/85388
 877         * config/i386/i386.c (ix86_expand_split_stack_prologue): Insert
 878         ENDBR after calling __morestack.
 879
 880 2018-04-18  David Malcolm  <dmalcolm@redhat.com>
 881
 882         PR jit/85384
 883         * configure.ac (gcc-driver-name.h): Honor --with-gcc-major-version
 884         by using gcc_base_ver to generate a gcc_driver_version, and use
 885         it when generating GCC_DRIVER_NAME.
 886         * configure: Regenerate.
 887
 888 2018-04-18  Jakub Jelinek  <jakub@redhat.com>
 889
 890         PR target/81084
 891         * config.gcc: Obsolete powerpc*-*-*spe*.
 892
 893 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
 894
 895         PR debug/84637
 896         * dbxout.c (dbxout_int): Perform negation in unsigned int type.
 897         (stabstr_D): Change type of unum from unsigned int to
 898         unsigned HOST_WIDE_INT.  Perform negation in unsigned HOST_WIDE_INT
 899         type.
 900
 901 2018-04-17  Jim Wilson  <jimw@sifive.com>
 902
 903         PR 84856
 904         * config/riscv/riscv.c (riscv_compute_frame_info): Add calls to
 905         RISCV_STACK_ALIGN when using outgoing_args_size and pretend_args_size.
 906         Set arg_pointer_offset after using pretend_args_size.
 907
 908 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
 909
 910         PR rtl-optimization/85431
 911         * dse.c (record_store): Ignore zero width stores.
 912
 913         PR sanitizer/85230
 914         * asan.c (handle_builtin_stack_restore): Adjust comment.  Emit
 915         __asan_allocas_unpoison call and last_alloca_addr = new_sp before
 916         __builtin_stack_restore rather than after it.
 917         * builtins.c (expand_asan_emit_allocas_unpoison): Pass
 918         arg1 + (virtual_dynamic_stack_rtx - stack_pointer_rtx) as second
 919         argument instead of virtual_dynamic_stack_rtx.
 920
 921 2018-04-17  Kelvin Nilsen  <kelvin@gcc.gnu.org>
 922
 923         * config/rs6000/rs6000-protos.h (rs6000_builtin_is_supported_p):
 924         New prototype.
 925         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
 926         Add note to error message to explain internal mapping of overloaded
 927         built-in function name to non-overloaded built-in function name.
 928         * config/rs6000/rs6000.c (rs6000_builtin_is_supported_p): New
 929         function.
 930
 931 2018-04-17  Michael Meissner  <meissner@linux.vnet.ibm.com>
 932
 933         PR target/85424
 934         * config/rs6000/rs6000.md (pack<mode>): Do not try handle a pack
 935         where the inputs overlap with the output.
 936
 937 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
 938
 939         * config/i386/sse.md (vec_extract_lo_<mode><mask_name>): Add
 940         (=v, v) alternative and explicit "memory" attribute.
 941         (vec_extract_lo_<mode><mask_name>): Likewise.  Also add
 942         "type", "prefix", "prefix_extra", "length_immediate" and "mode"
 943         attributes.
 944         (vec_extract_lo_<mode><mask_name>): Add (=v, v) alternative and use
 945         "sselog1" type instead of "sselog".
 946         (vec_extract_hi_<mode><mask_name>): Use "sselog1" type instead of
 947         "sselog".  Remove explicit "memory" attribute.
 948         (vec_extract_lo_v32hi): Add (=v, v) alternative and explicit "memory",
 949         "type", "prefix", "prefix_extra", "length_immediate" and "mode"
 950         attributes.
 951         (vec_extract_hi_v32hi): Merge all alternatives into one, use
 952         "sselog1" type instead of "sselog".  Remove explicit "memory"
 953         attribute.
 954         (vec_extract_hi_v16hi): Merge each pair of alternatives into one,
 955         use "sselog1" type instead of "sselog".  Remove explicit "memory"
 956         attribute.
 957         (vec_extract_lo_v64qi): Add (=v, v) alternative and explicit "memory",
 958         "type", "prefix", "prefix_extra", "length_immediate" and "mode"
 959         attributes.
 960         (vec_extract_hi_v64qi): Merge all alternatives into one, use
 961         "sselog1" type instead of "sselog".  Remove explicit "memory"
 962         attribute.
 963         (vec_extract_hi_v32qi): Merge each pair of alternatives into one,
 964         use "sselog1" type instead of "sselog".  Remove explicit "memory"
 965         attribute.
 966
 967         PR target/85430
 968         * config/i386/i386.md (*ashlqi3_1_slp): Use alu1 type instead of alu.
 969
 970         PR middle-end/85414
 971         * rtlhooks.c (gen_lowpart_if_possible): Don't call gen_lowpart_SUBREG
 972         on a SUBREG.
 973
 974 2018-04-17  Martin Jambor  <mjambor@suse.cz>
 975
 976         PR ipa/85421
 977         * ipa-cp.c (create_specialized_node): Call
 978         expand_all_artificial_thunks if necessary.
 979
 980 2018-04-17  Martin Liska  <mliska@suse.cz>
 981
 982         PR lto/85405
 983         * ipa-devirt.c (odr_types_equivalent_p): Remove trailing
 984         in message, remote space in between '_G' and '('.
 985
 986 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
 987
 988         PR target/85281
 989         * config/i386/sse.md (reduces<mode><mask_scalar_name>,
 990         avx512f_vmcmp<mode>3<round_saeonly_name>,
 991         avx512f_vmcmp<mode>3_mask<round_saeonly_name>,
 992         avx512f_sgetexp<mode><mask_scalar_name><round_saeonly_scalar_name>,
 993         avx512f_rndscale<mode><round_saeonly_name>,
 994         avx512dq_ranges<mode><mask_scalar_name><round_saeonly_scalar_name>,
 995         avx512f_vgetmant<mode><mask_scalar_name><round_saeonly_scalar_name>):
 996         Use %<iptr>2 instead of %2 for -masm=intel.
 997         (avx512f_vcvtss2usi<round_name>, avx512f_vcvtss2usiq<round_name>,
 998         avx512f_vcvttss2usi<round_saeonly_name>,
 999         avx512f_vcvttss2usiq<round_saeonly_name>): Use %k1 instead of %1 for
1000         -masm=intel.
1001         (avx512f_vcvtsd2usi<round_name>, avx512f_vcvtsd2usiq<round_name>,
1002         avx512f_vcvttsd2usi<round_saeonly_name>,
1003         avx512f_vcvttsd2usiq<round_saeonly_name>, ufloatv2siv2df2<mask_name>):
1004         Use %q1 instead of %1 for -masm=intel.
1005         (avx512f_sfixupimm<mode><sd_maskz_name><round_saeonly_name>,
1006         avx512f_sfixupimm<mode>_mask<round_saeonly_name>): Use %<iptr>3 instead
1007         of %3 for -masm=intel.
1008         (sse2_shufpd_v2df_mask): Fix a typo, change %{6%} to %{%6%} for
1009         -masm=intel.
1010         (*avx512vl_<code>v2div2qi2_store): Use %w0 instead of %0 for
1011         -masm=intel.
1012         (*avx512vl_<code><mode>v4qi2_store): Use %k0 instead of %0 for
1013         -masm=intel.
1014         (avx512vl_<code><mode>v4qi2_mask_store): Use a single pattern with
1015         %k0 and %1 for -masm=intel rather than two patterns, one with %0 and
1016         %g1.
1017         (*avx512vl_<code><mode>v8qi2_store): Use %q0 instead of %0 for
1018         -masm=intel.
1019         (avx512vl_<code><mode>v8qi2_mask_store): Use a single pattern with
1020         %q0 and %1 for -masm=intel rather than two patterns, one with %0 and
1021         %g1 and one with %0 and %1.
1022         (avx512er_vmrcp28<mode><round_saeonly_name>,
1023         avx512er_vmrsqrt28<mode><round_saeonly_name>): Use %<iptr>1 instead of
1024         %1 for -masm=intel.
1025         (avx5124fmaddps_4fmaddps_mask, avx5124fmaddps_4fmaddss_mask,
1026         avx5124fmaddps_4fnmaddps_mask, avx5124fmaddps_4fnmaddss_mask,
1027         avx5124vnniw_vp4dpwssd_mask, avx5124vnniw_vp4dpwssds_mask): Swap order
1028         of %0 and %{%4%} for -masm=intel.
1029         (avx5124fmaddps_4fmaddps_maskz, avx5124fmaddps_4fmaddss_maskz,
1030         avx5124fmaddps_4fnmaddps_maskz, avx5124fmaddps_4fnmaddss_maskz,
1031         avx5124vnniw_vp4dpwssd_maskz, avx5124vnniw_vp4dpwssds_maskz): Swap
1032         order of %0 and %{%5%}%{z%} for -masm=intel.
1033
1034 2018-04-17  Jan Hubicka  <jh@suse.cz>
1035
1036         PR lto/85405
1037         * ipa-devirt.c (odr_types_equivalent_p): Handle bit fields.
1038
1039 2018-04-17  Martin Liska  <mliska@suse.cz>
1040
1041         PR ipa/85329
1042         * multiple_target.c (create_dispatcher_calls): Set apostrophes
1043         for target_clone error message.  Make default implementation
1044         clone to be a local declaration.
1045         (separate_attrs): Add new argument and check for an empty
1046         string.
1047         (expand_target_clones): Handle it.
1048         (ipa_target_clone): Make redirection just for target_clones
1049         functions.
1050
1051 2018-04-16  Cesar Philippidis  <cesar@codesourcery.com>
1052             Tom de Vries  <tom@codesourcery.com>
1053
1054         PR middle-end/84955
1055         * omp-expand.c (expand_oacc_for): Add dummy false branch for
1056         tiled basic blocks without omp continue statements.
1057
1058 2018-04-16  Aaron Sawdey  <acsawdey@linux.ibm.com>
1059
1060         PR target/83660
1061         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Mark
1062         vec_extract expression as having side effects to make sure it gets
1063         a cleanup point.
1064
1065 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
1066
1067         PR target/85403
1068         * config/i386/i386.c (get_builtin_code_for_version): Check
1069         error_mark_node.
1070
1071 2018-04-16  Olga Makhotina  <olga.makhotina@intel.com>
1072
1073         PR target/84331
1074         * gcc/config.gcc: Support "skylake".
1075         * gcc/config/i386/i386-c.c (ix86_target_macros_internal): Handle
1076         PROCESSOR_SKYLAKE.
1077         * gcc/config/i386/i386.c (m_SKYLAKE): Define.
1078         (processor_target_table): Add "skylake".
1079         (ix86_option_override_internal): Add "skylake".
1080         (get_builtin_code_for_version): Handle PROCESSOR_SKYLAKE,
1081         PROCESSOR_CANNONLAKE.
1082         (get_builtin_code_for_version): Fix priority for
1083         PROCESSOR_ICELAKE_CLIENT, PROCESSOR_ICELAKE_SERVER,
1084         PROCESSOR_SKYLAKE-AVX512.
1085         * gcc/config/i386/i386.h (processor_costs): Define TARGET_SKYLAKE.
1086         (processor_type): Add PROCESSOR_SKYLAKE.
1087
1088 2018-04-16  Paolo Carlini  <paolo.carlini@oracle.com>
1089             Jason Merrill  <jason@redhat.com>
1090
1091         PR c++/85112
1092         * convert.c (convert_to_integer_1): Use direct recursion for
1093         enumeral types and types with a precision less than the number
1094         of bits in their mode.
1095
1096 2018-04-16  Julia Koval  <julia.koval@intel.com>
1097
1098         PR target/84413
1099         * config/i386/x86-tune.def (X86_TUNE_SSE_UNALIGNED_LOAD_OPTIMAL,
1100         X86_TUNE_SSE_UNALIGNED_STORE_OPTIMAL): Add m_SKYLAKE_AVX512
1101
1102 2018-04-14  Segher Boessenkool  <segher@kernel.crashing.org>
1103
1104         PR target/85293
1105         * config/rs6000/rs6000.opt (mdirect-move): Make deprecated.
1106         * doc/invoke.texi (RS/6000 and PowerPC Options): Remove -mdirect-move
1107         and -mno-direct-move.
1108
1109 2018-04-13  Paul A. Clarke  <pc@us.ibm.com>
1110
1111         PR target/83402
1112         * config/rs6000/emmintrin.h (_mm_slli_epi{16,32,64}):
1113         Ensure that vec_splat_s32 is only called with 0 <= shift < 16.
1114         Ensure negative shifts result in {0}.
1115
1116 2018-04-13  Vladimir Makarov  <vmakarov@redhat.com>
1117
1118         PR rtl-optimization/79916
1119         * config/rs6000/rs6000.c (rs6000_emit_move): Use assigned hard
1120         regs (if any) to define how to gnerate SD moves when LRA is in
1121         progress.
1122
1123 2018-04-13  Jakub Jelinek  <jakub@redhat.com>
1124
1125         PR rtl-optimization/85393
1126         * except.h (expand_dw2_landing_pad_for_region): Remove declaration.
1127         * except.c (expand_dw2_landing_pad_for_region): Make static.
1128         * bb-reorder.c (fix_up_crossing_landing_pad): In new_bb emit just
1129         a label and unconditional jump to old_bb, rather than
1130         expand_dw2_landing_pad_for_region insn(s) and jump to single_succ
1131         basic block.
1132
1133         PR rtl-optimization/85376
1134         * simplify-rtx.c (simplify_const_unary_operation): For CLZ and CTZ and
1135         zero op0, if C?Z_DEFINED_VALUE_AT_ZERO is false, return NULL_RTX
1136         instead of a specific value.
1137
1138 2018-04-13  Jan Hubicka  <hubicka@ucw.cz>
1139             Bin Cheng  <bin.cheng@arm.com>
1140
1141         PR tree-optimization/82965
1142         PR tree-optimization/83991
1143         * cfgloopanal.c (expected_loop_iterations_unbounded): Add
1144         by_profile_only parameter.
1145         * cfgloopmanip.c (scale_loop_profile): Further scale loop's profile
1146         information if the loop was predicted to iterate too many times.
1147         * cfgloop.h (expected_loop_iterations_unbounded): Update prototype
1148
1149 2018-04-13  Jan Hubicka  <hubicka@ucw.cz>
1150
1151         PR lto/71991
1152         * config/i386/i386.c (ix86_can_inline_p): Allow safe transitions for
1153         always inline.
1154
1155 2018-04-13  Martin Liska  <mliska@suse.cz>
1156             Jakub Jelinek  <jakub@redhat.com>
1157
1158         PR middle-end/81657
1159         * expr.h (enum block_op_methods): Add BLOCK_OP_NO_LIBCALL_RET.
1160         * expr.c (emit_block_move_hints): Handle BLOCK_OP_NO_LIBCALL_RET.
1161         * builtins.c (expand_builtin_memory_copy_args): Use
1162         BLOCK_OP_NO_LIBCALL_RET method for mempcpy with non-ignored target,
1163         handle dest_addr == pc_rtx.
1164
1165 2018-04-12  Segher Boessenkool  <segher@kernel.crashing.org>
1166
1167         PR target/85291
1168         * config/rs6000/rs6000.md (fix_trunc<mode>si2): Use legacy code if
1169         asked to not generate direct moves.
1170         (fix_trunc<mode>si2_stfiwx): Similar.
1171         (fix_trunc<mode>si2_internal): Similar.
1172
1173 2018-04-12  Jakub Jelinek  <jakub@redhat.com>
1174
1175         PR debug/83157
1176         * var-tracking.c (add_stores): Handle STRICT_LOW_PART SET_DEST.
1177         * cselib.c (cselib_record_sets): For STRICT_LOW_PART dest,
1178         lookup if dest in some wider mode is known to be const0_rtx and
1179         if so, record permanent equivalence for it to be ZERO_EXTEND of
1180         the narrower mode destination.
1181
1182 2018-04-12  Cesar Philippidis  <cesar@codesourcery.com>
1183
1184         * lto-streamer-out.c (output_function): Revert 259346.
1185         * omp-expand.c (expand_oacc_for): Likewise.
1186
1187 2018-04-12  Alexander Monakov  <amonakov@ispras.ru>
1188
1189         PR rtl-optimization/85354
1190         * sel-sched-ir.c (sel_init_pipelining): Move cfg_cleanup call...
1191         * sel-sched.c (sel_global_init): ... here.
1192
1193 2018-04-12  Eric Botcazou  <ebotcazou@adacore.com>
1194
1195         PR target/85238
1196         * lto-wrapper.c (debug_objcopy): Open the files in binary mode.
1197         * dwarf2out.c (dwarf2out_early_finish): Do not generate assembly in LTO
1198         mode for PE-COFF targets.
1199         * config/i386/i386-protos.h (i386_pe_asm_lto_start): Declare.
1200         (i386_pe_asm_lto_end): Likewise.
1201         * config/i386/cygming.h (TARGET_ASM_LTO_START): Define.
1202         (TARGET_ASM_LTO_END): Likewise.
1203         * config/i386/winnt.c (saved_debug_info_level): New static variable.
1204         (i386_pe_asm_lto_start): New function.
1205         (i386_pe_asm_lto_end): Likewise.
1206
1207 2018-04-12  Cesar Philippidis  <cesar@codesourcery.com>
1208             Richard Biener  <rguenther@suse.de>
1209
1210         PR middle-end/84955
1211         * lto-streamer-out.c (output_function): Fix CFG loop state before
1212         streaming out.
1213         * omp-expand.c (expand_oacc_for): Handle calls to internal
1214         functions like regular functions.
1215
1216 2018-04-12  Richard Biener  <rguenther@suse.de>
1217
1218         PR lto/85371
1219         * dwarf2out.c (init_sections_and_labels): Use debug_line_section[_label]
1220         for the early LTO debug to properly generate references to it
1221         during DIE emission.  Do not re-use that for the skeleton for
1222         split-dwarf.
1223         (dwarf2out_early_finish): Likewise.
1224
1225 2018-04-12  Jakub Jelinek  <jakub@redhat.com>
1226
1227         PR target/85328
1228         * config/i386/sse.md
1229         (<mask_codefor>avx512dq_vextract<shuffletype>64x2_1<mask_name> split,
1230         <mask_codefor>avx512f_vextract<shuffletype>32x4_1<mask_name> split,
1231         vec_extract_lo_<mode><mask_name> split, vec_extract_lo_v32hi,
1232         vec_extract_lo_v64qi): For non-AVX512VL if input is xmm16+ reg
1233         and output is a reg, avoid creating invalid lowpart subreg, but
1234         instead split into a 512-bit move.  Don't split if not AVX512VL,
1235         input is xmm16+ reg and output is a mem.
1236         (vec_extract_lo_<mode><mask_name>, vec_extract_lo_v32hi,
1237         vec_extract_lo_v64qi): Don't require split if not AVX512VL, input is
1238         xmm16+ reg and output is a mem.
1239
1240 2018-04-12  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
1241
1242         * config/s390/s390.c (s390_output_indirect_thunk_function): Check
1243         also for flag_dwarf2_cfi_asm.
1244
1245 2018-04-12  Jakub Jelinek  <jakub@redhat.com>
1246
1247         PR rtl-optimization/85342
1248         * regcprop.c (copyprop_hardreg_forward_1): Remove replaced array, use
1249         a bool scalar var inside of the loop instead.  Don't try to update
1250         recog_data.operand after failed apply_change_group.
1251
1252 2018-04-12  Tom de Vries  <tom@codesourcery.com>
1253
1254         PR target/85296
1255         * config/nvptx/nvptx.c (flexible_array_member_type_p): New function.
1256         (nvptx_assemble_decl_begin): Add undefined param.  Declare undefined
1257         array with flexible array member as array without given dimension.
1258         (nvptx_assemble_undefined_decl): Set nvptx_assemble_decl_begin call
1259         argument for undefined param to true.
1260
1261 2018-04-11  Aaron Sawdey  <acsawdey@linux.ibm.com>
1262
1263         PR target/85321
1264         * doc/invoke.texi (RS/6000 and PowerPC Options): Document options
1265         -mcall- and -mtraceback=. Remove options -mabi=spe and -mabi=no-spe
1266         from PowerPC section.
1267         * config/rs6000/sysv4.opt (mcall-): Improve help text.
1268         * config/rs6000/rs6000.opt (mblock-compare-inline-limit=): Trim
1269         help text that is too long.
1270         * config/rs6000/rs6000.opt (mblock-compare-inline-loop-limit=): Trim
1271         help text that is too long.
1272         * config/rs6000/rs6000.opt (mstring-compare-inline-limit=): Trim
1273         help text that is too long.
1274
1275 2018-04-11  Uros Bizjak  <ubizjak@gmail.com>
1276
1277         * config/alpha/alpha.md (stack_probe_internal): Rename
1278         from "probe_stack".  Update all callers.
1279
1280 2018-04-11  Alexander Monakov  <amonakov@ispras.ru>
1281
1282         PR rtl-optimization/84566
1283         * sched-deps.c (sched_analyze_insn): Check deps->readonly when invoking
1284         sched_macro_fuse_insns.
1285
1286 2018-04-11  Alexander Monakov  <amonakov@ispras.ru>
1287
1288         PR target/84301
1289         * sched-rgn.c (add_branch_dependences): Move sel_sched_p check here...
1290         (compute_block_dependences): ... from here.
1291
1292 2018-04-11  Jakub Jelinek  <jakub@redhat.com>
1293
1294         PR tree-optimization/85331
1295         * vec-perm-indices.h (vec_perm_indices::clamp): Change input type
1296         from int to HOST_WIDE_INT.
1297
1298 2018-04-11  Martin Jambor  <mjambor@suse.cz>
1299
1300         PR ipa/84149
1301         * ipa-cp.c (propagate_vals_across_pass_through): Expand comment.
1302         (cgraph_edge_brings_value_p): New parameter dest_val, check if it is
1303         not the same as the source val.
1304         (cgraph_edge_brings_value_p): New parameter.
1305         (gather_edges_for_value): Pass destination value to
1306         cgraph_edge_brings_value_p.
1307         (perhaps_add_new_callers): Likewise.
1308         (get_info_about_necessary_edges): Likewise and exclude values brought
1309         only by self-recursive edges.
1310         (create_specialized_node): Redirect only clones of self-calling edges.
1311         (+self_recursive_pass_through_p): New function.
1312         (find_more_scalar_values_for_callers_subset): Use it.
1313         (find_aggregate_values_for_callers_subset): Likewise.
1314         (known_aggs_to_agg_replacement_list): Removed.
1315         (decide_whether_version_node): Re-calculate known constants for all
1316         remaining context clones.
1317
1318 2018-04-11  Richard Biener  <rguenther@suse.de>
1319
1320         PR lto/85339
1321         * dwarf2out.c (dwarf2out_finish): Remove DW_AT_stmt_list attribute
1322         from early DWARF output.
1323         (dwarf2out_early_finish): Output line info unconditionally into
1324         early DWARF and add reference to it.
1325
1326 2018-04-11  Jakub Jelinek  <jakub@redhat.com>
1327
1328         PR target/85281
1329         * config/i386/sse.md (iptr): Add V16SFmode and V8DFmode cases.
1330         (<avx512>_vec_dup<mode><mask_name>): Use a single pattern for modes
1331         other than V2DFmode using iptr mode attribute.
1332         (<avx512>_vec_dup<mode><mask_name>): Use iptr mode attribute.
1333
1334 2018-04-11  Alexander Monakov  <amonakov@ispras.ru>
1335
1336         PR rtl-optimization/84659
1337         * sel-sched-ir.c (sel_init_pipelining): Invoke cleanup_cfg.
1338
1339 2018-04-11  Jakub Jelinek  <jakub@redhat.com>
1340
1341         PR debug/85302
1342         * dwarf2out.c (skip_loc_list_entry): Don't call size_of_locs if
1343         SIZEP is NULL.
1344         (output_loc_list): Pass address of a dummy size variable even in the
1345         locview handling loop.
1346         (index_location_lists): Add comment on why skip_loc_list_entry can't
1347         call size_of_locs.
1348
1349 2018-04-11  Thomas Preud'homme  <thomas.preudhomme@arm.com>
1350
1351         PR target/85261
1352         * config/arm/arm-builtins.c (arm_expand_builtin): Force input operand
1353         into register.
1354
1355 2018-04-10  Aaron Sawdey  <acsawdey@linux.ibm.com>
1356
1357         PR target/85321
1358         * doc/invoke.texi (RS/6000 and PowerPC Options): Document options
1359         -mblock-compare-inline-limit, -mblock-compare-inline-loop-limit,
1360         and -mstring-compare-inline-limit.
1361
1362 2018-04-10  Segher Boessenkool  <segher@kernel.crashing.org>
1363
1364         PR target/85287
1365         * gcc/config/rs6000/rs6000.md (allocate_stack): Put the residual size
1366         for stack clash protection in a register whenever we need it to be in
1367         a register.
1368
1369 2018-04-10  Segher Boessenkool  <segher@kernel.crashing.org>
1370
1371         * common/config/rs6000/rs6000-common.c (rs6000_option_init_struct):
1372         Enable -fasynchronous-unwind-tables by default if OBJECT_FORMAT_ELF.
1373
1374 2018-04-10  Segher Boessenkool  <segher@kernel.crashing.org>
1375
1376         PR target/85321
1377         * config/rs6000/rs6000.opt (mtraceback=): Show the allowed values in
1378         the help text.
1379         (mlong-double-): Ditto.
1380         * config/rs6000/sysv4.opt (msdata=): Ditto.
1381         (mtls-size=): Ditto.
1382
1383 2018-04-10  Kelvin Nilsen  <kelvin@gcc.gnu.org>
1384
1385         * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Remove
1386         erroneous entries for
1387         "vector int vec_ldl (int, long int *)", and
1388         "vector unsigned int vec_ldl (int, unsigned long int *)".
1389         Add comments and entries for
1390         "vector bool char vec_ldl (int, bool char *)",
1391         "vector bool short vec_ldl (int, bool short *)",
1392         "vector bool int vec_ldl (int, bool int *)",
1393         "vector bool long long vec_ldl (int, bool long long *)",
1394         "vector pixel vec_ldl (int, pixel *)",
1395         "vector long long vec_ldl (int, long long *)",
1396         "vector unsigned long long vec_ldl (int, unsigned long long *)".
1397         * config/rs6000/rs6000.c (rs6000_init_builtins): Initialize new
1398         type tree bool_long_long_type_node and correct definition of
1399         bool_V2DI_type_node to make reference to this new type tree.
1400         (rs6000_mangle_type): Replace erroneous reference to
1401         bool_long_type_node with bool_long_long_type_node.
1402         * config/rs6000/rs6000.h (enum rs6000_builtin_type_index): Add
1403         comments to emphasize sign distinctions for char and int types and
1404         replace RS6000_BTI_bool_long constant with
1405         RS6000_BTI_bool_long_long constant.  Also add comment to restrict
1406         use of RS6000_BTI_pixel.
1407         (bool_long_type_node): Remove this macro definition.
1408         (bool_long_long_type_node): New macro definition
1409
1410 2018-04-10  Jakub Jelinek  <jakub@redhat.com>
1411
1412         PR rtl-optimization/85300
1413         * combine.c (subst): Handle subst of CONST_SCALAR_INT_P new_rtx also
1414         into FLOAT and UNSIGNED_FLOAT like ZERO_EXTEND, return a CLOBBER if
1415         simplify_unary_operation fails.
1416
1417 2018-04-10  Martin Liska  <mliska@suse.cz>
1418
1419         * gdbhooks.py: Add pretty-printers for varpool_node, symtab_node,
1420         cgraph_edge and ipa_ref.
1421
1422 2018-04-10  Jakub Jelinek  <jakub@redhat.com>
1423
1424         PR target/85177
1425         PR target/85255
1426         * config/i386/sse.md
1427         (<extract_type>_vinsert<shuffletype><extract_suf>_mask): Fix
1428         computation of the VEC_MERGE selector from mask.
1429         (<extract_type>_vinsert<shuffletype><extract_suf>_1<mask_name>):
1430         Fix decoding of the VEC_MERGE selector into mask.
1431
1432 2018-04-10  Richard Sandiford  <richard.sandiford@linaro.org>
1433
1434         PR tree-optimization/85286
1435         * tree-vect-data-refs.c (vect_get_smallest_scalar_type):
1436
1437 2018-04-10  Richard Sandiford  <richard.sandiford@linaro.org>
1438
1439         * final.c (final_1): Set insn_last_address as well as
1440         insn_current_address.
1441
1442 2018-04-10  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1443
1444         PR target/85173
1445         * explow.c (emit_stack_probe): Call validize_mem on memory location
1446         before passing it to gen_probe_stack.  Create address operand and
1447         legitimize it for the probe_stack_address case.
1448
1449 2018-04-09  Jan Hubicka  <jh@suse.cz>
1450
1451         PR lto/85078
1452         * ipa-devirt.c (rebuild_type_inheritance-hash): New.
1453         * ipa-utils.h (rebuild_type_inheritance-hash): Declare.
1454         * tree.c (free_lang_data_in_type): Fix handling of binfos;
1455         walk basetypes.
1456         (free_lang_data): Rebuild type inheritance graph.
1457
1458 2018-04-09  Martin Sebor  <msebor@redhat.com>
1459
1460         * invoke.texi (-finline-small-functions): Mention other optimization
1461         options.
1462         (-findirect-inlining, -fpartial-inlining): Same.
1463         (-finline-functions-called-once): Same.
1464         (-freorder-blocks-and-partition): Same.
1465
1466 2018-04-09  Jan Hubicka  <jh@suse.cz>
1467
1468         PR rtl/84058
1469         * cfgcleanup.c (try_forward_edges): Do not give up on crossing
1470         jumps; choose last target that matches the criteria (i.e.
1471         no partition changes for non-crossing jumps).
1472         * cfgrtl.c (cfg_layout_redirect_edge_and_branch): Add basic
1473         support for redirecting crossing jumps to non-crossing.
1474
1475 2018-04-09  Alexey Brodkin  <abrodkin@synopsys.com>
1476
1477         * config/arc/arc.c (arc_expand_prologue): Set stack usage info
1478         also for naked functions.
1479
1480 2018-04-09  Claudiu Zissulescu  <claziss@synopsys.com>
1481
1482         * config/arc/arc.md (add_shift): New pattern.
1483         (add_shift2): Likewise.
1484         (sub_shift): Likewise.
1485         (sub_shift_cmp0_noout): Likewise.
1486         (compare_si_ashiftsi): Likewise.
1487         (xbfu_cmp0_noout): New combine pattern.
1488         (xbfu_cmp0"): Likewise.
1489         (movsi_set_cc_insn): Place the predicable variant first.
1490         (commutative_binary_cmp0_noout): Remove clobber.
1491         (commutative_binary_cmp0): New pattern.
1492         (noncommutative_binary_cmp0): Likewise.
1493         (noncommutative_binary_cmp0_noout): Likewise.
1494         (noncommutative_binary_comparison_result_used): Removed.
1495         (rsub_cmp0): New pattern.
1496         (rsub_cmp0_noout): Likewise.
1497         (extzvsi): Changed, keep only meaningful variants.
1498         (SQH, SEZ): New iterators.
1499         (SQH_postfix): New mode attribute.
1500         (SEZ_prefix): New code attribute.
1501         (<SEZ_prefix>xt<SQH_postfix>_cmp0_noout): New instruction pattern.
1502         (<SEZ_prefix>xt<SQH_postfix>_cmp0): Likewise.
1503         * config/arc/predicates.md (cc_set_register): Use CC_REG instead
1504         of numerical value.
1505         (noncommutative_operator): Check the availability of barrel
1506         shifter option.
1507
1508 2018-04-09  Richard Biener  <rguenther@suse.de>
1509
1510         PR tree-optimization/85284
1511         * tree-ssa-loop-niter.c (number_of_iterations_exit_assumptions):
1512         Only use the niter constraining form of simple_iv when the exit
1513         is always executed.
1514
1515 2018-04-09  Tom de Vries  <tom@codesourcery.com>
1516
1517         PR target/84041
1518         * config/nvptx/nvptx.md (define_c_enum "unspecv"): Add UNSPECV_MEMBAR.
1519         (define_expand "*memory_barrier"): New define_expand.
1520         (define_insn "memory_barrier"): New insn.
1521
1522 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
1523
1524         PR rtl-optimization/80463
1525         PR rtl-optimization/83972
1526         PR rtl-optimization/83480
1527
1528         * sel-sched-ir.c (has_dependence_note_mem_dep): Take into account the
1529         correct producer for the insn.
1530         (tidy_control_flow): Fixup seqnos in case of debug insns.
1531
1532 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
1533
1534         PR rtl-optimization/83913
1535
1536         * sel-sched-ir.c (merge_expr_data): Choose the middle between two
1537         different sched-times when merging exprs.
1538
1539 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
1540
1541         PR rtl-optimization/83962
1542
1543         * sel-sched-ir.c (tidy_control_flow): Correct the order in which we call
1544         tidy_fallthru_edge and tidy_control_flow.
1545
1546 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
1547
1548         PR rtl-optimization/83530
1549
1550         * sel-sched.c (force_next_insn): New global variable.
1551         (remove_insn_for_debug): When force_next_insn is true, also leave only
1552         next insn in the ready list.
1553         (sel_sched_region): When the region wasn't scheduled, make another pass
1554         over it with force_next_insn set to 1.
1555
1556 2018-04-08  Monk Chiang  <sh.chiang04@gmail.com>
1557
1558         * config.gcc (nds32le-*-*, nds32be-*-*): Add nds32/nds32_intrinsic.h
1559         into tm_file.
1560         * config/nds32/constants.md (unspec_volatile_element): Add enum values
1561         for interrupt control.
1562         * config/nds32/nds32-intrinsic.c: Implementation of intrinsic
1563         functions for interrupt control.
1564         * config/nds32/nds32-intrinsic.md: Likewise.
1565         * config/nds32/nds32_intrinsic.h: Likewise.
1566         * config/nds32/nds32.h (nds32_builtins): Likewise.
1567
1568 2018-04-08  Chung-Ju Wu  <jasonwucj@gmail.com>
1569
1570         * config/nds32/nds32.c (nds32_init_machine_status,
1571         nds32_legitimate_index_p, nds32_legitimate_address_p): Consider
1572         strict_aligned_p field.
1573         (nds32_expand_to_rtl_hook): New function.
1574         (TARGET_EXPAND_TO_RTL_HOOK): Define.
1575         * config/nds32/nds32.h (machine_function): Add strict_aligned_p field.
1576
1577 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
1578             Chung-Ju Wu  <jasonwucj@gmail.com>
1579
1580         * config.gcc (nds32*-*-*): Check that n7 is valid to --with-cpu.
1581         * config/nds32/nds32-n7.md: New file.
1582         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_N7.
1583         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n7
1584         pipeline.
1585         * config/nds32/nds32-protos.h: More declarations for n7 pipeline.
1586         * config/nds32/nds32.md (pipeline_model): Add n7.
1587         * config/nds32/nds32.opt (mcpu): Support n7 pipeline cpus.
1588         * config/nds32/pipelines.md: Include n7 settings.
1589
1590 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
1591             Chung-Ju Wu  <jasonwucj@gmail.com>
1592
1593         * config.gcc (nds32*-*-*): Check that e8 is valid to --with-cpu.
1594         * config/nds32/nds32-e8.md: New file.
1595         * config/nds32/nds32-opts.h (nds32-cpu_type): Add CPU_E8.
1596         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for e8
1597         pipeline.
1598         * config/nds32/nds32-protos.h: More declarations for e8 pipeline.
1599         * config/nds32/nds32.md (pipeline_model): Add e8.
1600         * config/nds32/nds32.opt (mcpu): Support e8 pipeline cpus.
1601         * config/nds32/pipelines.md: Include e8 settings.
1602
1603 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
1604             Chung-Ju Wu  <jasonwucj@gmail.com>
1605
1606         * config.gcc (nds32*-*-*): Check that n6/n8/s8 are valid to --with-cpu.
1607         * config/nds32/nds32-n8.md: New file.
1608         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_N6 and CPU_N8.
1609         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n8
1610         pipeline.
1611         * config/nds32/nds32-protos.h: More declarations for n8 pipeline.
1612         * config/nds32/nds32-utils.c: More implementations for n8 pipeline.
1613         * config/nds32/nds32.md (pipeline_model): Add n8.
1614         * config/nds32/nds32.opt (mcpu): Support n8 pipeline cpus.
1615         * config/nds32/pipelines.md: Include n8 settings.
1616
1617 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
1618             Chung-Ju Wu  <jasonwucj@gmail.com>
1619
1620         * config.gcc (nds32*): Add nds32-utils.o into extra_objs.
1621         * config/nds32/nds32-n9-2r1w.md: New file.
1622         * config/nds32/nds32-n9-3r2w.md: New file.
1623         * config/nds32/nds32-opts.h (nds32_cpu_type, nds32_mul_type,
1624         nds32_register_ports): New or modify for cpu n9.
1625         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n9
1626         pipeline.
1627         * config/nds32/nds32-protos.h: More declarations for n9 pipeline.
1628         * config/nds32/nds32-utils.c: New file.
1629         * config/nds32/nds32.h (TARGET_PIPELINE_N9, TARGET_PIPELINE_SIMPLE,
1630         TARGET_MUL_SLOW): Define.
1631         * config/nds32/nds32.md (pipeline_model): New attribute.
1632         * config/nds32/nds32.opt (mcpu, mconfig-mul, mconfig-register-ports):
1633         New options that support cpu n9.
1634         * config/nds32/pipelines.md: Include n9 settings.
1635         * config/nds32/t-nds32 (nds32-utils.o): Add dependency.
1636
1637 2018-04-08  Chung-Ju Wu  <jasonwucj@gmail.com>
1638
1639         * config/nds32/nds32-md-auxiliary.c (output_cond_branch): Output align
1640         information if necessary.
1641         (output_cond_branch_compare_zero): Likewise.
1642         * config/nds32/nds32.c (nds32_adjust_insn_length): Consider align case.
1643         (nds32_target_alignment): Refine for alignment.
1644         * config/nds32/nds32.h (NDS32_ALIGN_P): Define.
1645         (FUNCTION_BOUNDARY): Modify.
1646         * config/nds32/nds32.md (call_internal, call_value_internal): Consider
1647         align case.
1648         * config/nds32/nds32.opt (malways-align, malign-functions): New.
1649
1650 2018-04-08  Monk Chiang  <sh.chiang04@gmail.com>
1651
1652         * config/nds32/constants.md (unspec_volatile_element): Add values for
1653         TLB operation and data prefetch.
1654         * config/nds32/nds32-intrinsic.c: Implementation of intrinsic
1655         functions for TLB operation and data prefetch.
1656         * config/nds32/nds32-intrinsic.md: Likewise.
1657         * config/nds32/nds32_intrinsic.h: Likewise.
1658         * config/nds32/nds32.c (nds32_dpref_names): Likewise.
1659         (nds32_print_operand): Likewise.
1660         * config/nds32/nds32.h (nds32_builtins): Likewise.
1661
1662 2018-04-07  Thomas Koenig  <tkoenig@gcc.gnu.org>
1663         Andrew Pinski <pinsika@gcc.gnu.org>
1664
1665         PR middle-end/82976
1666         * match.pd: Use constant_boolean_node of correct type instead of
1667         boolean_true_node or boolean_false_node for simplifying
1668         pointer comparisons to zero.
1669
1670 2018-04-07  Jakub Jelinek  <jakub@redhat.com>
1671
1672         PR tree-optimization/80021
1673         * tree.c (verify_type_variant): Make error call in verify_variant_match
1674         translatable and remove final full stop.
1675
1676 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
1677
1678         * config/nds32/constants.md (unspec_volatile_element): Add
1679         UNSPEC_VOLATILE_EH_RETURN.
1680         * config/nds32/nds32-md-auxiliary.c (nds32_output_stack_push,
1681         nds32_output_stack_pop): Support dwarf exception handling process.
1682         * config/nds32/nds32-protos.h (nds32_dynamic_chain_address): Declare.
1683         * config/nds32/nds32.c (nds32_init_machine_status): Support dwarf
1684         exception handling process.
1685         (nds32_compute_stack_frame): Likewise.
1686         (nds32_return_addr_rtx): Likewise.
1687         (nds32_initial_elimination_offset): Likewise.
1688         (nds32_expand_prologue): Likewise.
1689         (nds32_expand_epilogue): Likewise.
1690         (nds32_dynamic_chain_address): New function.
1691         * config/nds32/nds32.h (machine_function): Add fields for dwarf
1692         exception handling.
1693         (DYNAMIC_CHAIN_ADDRESS): Define.
1694         (EH_RETURN_DATA_REGNO): Define.
1695         (EH_RETURN_STACKADJ_RTX): Define.
1696         * config/nds32/nds32.md (eh_return, nds32_eh_return): Implement
1697         patterns for dwarf exception handling.
1698
1699 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
1700
1701         * config/nds32/nds32.h: Clean up obsolete macros.
1702
1703 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
1704
1705         * config/nds32/constants.md (unspec_element, unspec_volatile_element):
1706         Add enum values for particular instructions.
1707         * config/nds32/nds32-intrinsic.c: Implementation of expanding
1708         particular intrinsic functions.
1709         * config/nds32/nds32-intrinsic.md: Likewise.
1710         * config/nds32/nds32_intrinsic.h: Likewise.
1711         * config/nds32/nds32.h (nds32_builtins): Likewise.
1712         * config/nds32/nds32.md (type): Add pbsad and pbsada.
1713         (btst, ave): New patterns for particular instructions.
1714
1715 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
1716
1717         * config/nds32/constants.md (unspec_element, unspec_volatile_element):
1718         Add enum values for atomic load/store and memory sync.
1719         * config/nds32/nds32-intrinsic.c: Implementation for atomic load/store
1720         and memory sync.
1721         * config/nds32/nds32-intrinsic.md: Likewise.
1722         * config/nds32/nds32_intrinsic.h: Likewise.
1723         * config/nds32/nds32.h (nds32_builtins): Likewise.
1724
1725 2018-04-07  Jakub Jelinek  <jakub@redhat.com>
1726
1727         PR tree-optimization/85257
1728         * fold-const.c (native_encode_vector): If not all elts could fit
1729         and off is -1, return 0 rather than offset.
1730         * tree-ssa-sccvn.c (vn_reference_lookup_3): Pass
1731         (offseti - offset2) / BITS_PER_UNIT as 4th argument to
1732         native_encode_expr.  Verify len * BITS_PER_UNIT >= maxsizei.  Don't
1733         adjust buffer in native_interpret_expr call.
1734
1735 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
1736
1737         * config/nds32/constants.md (unspec_volatile_element): Add cache
1738         control enum values.
1739         * config/nds32/nds32-intrinsic.c: Add cache control expand functions.
1740         * config/nds32/nds32-intrinsic.md: Add cache control patterns.
1741         * config/nds32/nds32.c (nds32_cctl_names): New.
1742         (nds32_print_operand): Handle cache control register names.
1743         * config/nds32/nds32.h (nds32_builtins): New enum values.
1744         * config/nds32/nds32_intrinsic.h: Add cache control enum types and
1745         macros.
1746         * config/nds32/nds32.md (type): Add mmu.
1747         * config/nds32/pipelines.md (simple_insn): Add mmu.
1748
1749 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
1750
1751         * config/nds32/nds32.md (type): Remove call.
1752         * config/nds32/pipelines.md (simple_insn): Likewise.
1753
1754 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
1755
1756         * config/nds32/constants.md (unspec_volatile_element): Add
1757         UNSPEC_VOLATILE_FMFCSR, UNSPEC_VOLATILE_FMTCSR and
1758         UNSPEC_VOLATILE_FMFCFG.
1759         * config/nds32/nds32-intrinsic.c (bdesc_noarg): New builtin
1760         description for fmfcfg and fmfcsr.
1761         (bdesc_1arg): Add fmtcsr.
1762         (bdesc_2arg): Add fcpynss, fcpyss, fcpynsd and fcpysd.
1763         (nds32_expand_builtin_impl): Deal with FPU intrinsic functions.
1764         * config/nds32/nds32-intrinsic.md (unspec_fcpynsd, unspec_fcpysd,
1765         unspec_fcpynss, unspec_fcpysd, unspec_fcpyss, unspec_fmfcsr,
1766         unspec_fmfcfg): New patterns.
1767         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_FMFCFG,
1768         NDS32_BUILTIN_FMFCSR, NDS32_BUILTIN_FMTCSR, NDS32_BUILTIN_FCPYNSS,
1769         NDS32_BUILTIN_FCPYSS,NDS32_BUILTIN_FCPYNSD and NDS32_BUILTIN_FCPYSD.
1770         * config/nds32/nds32_intrinsic.h (__nds32__fcpynsd, __nds32__fcpynss,
1771         __nds32__fcpysd, __nds32__fcpyss, __nds32__fmfcsr, __nds32__fmtcsr,
1772         __nds32__fmfcfg): Define.
1773
1774 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
1775
1776         * config/nds32/nds32.c (nds32_intrinsic_register_names): Add more
1777         intrinsic register names.
1778         * config/nds32/nds32_intrinsic.h (nds32_intrinsic_registers): Add more
1779         intrinsic register enum values and macros.
1780
1781 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
1782
1783         * config/nds32/nds32.c (nds32_legitimate_index_p): Modify condition
1784         for load/store addressing form.
1785         (nds32_print_operand_address): Likewise.
1786
1787 2018-04-06  Eric Botcazou  <ebotcazou@adacore.com>
1788
1789         PR target/85196
1790         * config/sparc/sparc.c (sparc_expand_move): Deal with symbolic operands
1791         based on LABEL_REF.  Remove useless assertion.
1792         (pic_address_needs_scratch): Fix formatting.
1793         (sparc_legitimize_pic_address): Minor tweaks.
1794         (sparc_delegitimize_address): Adjust assertion accordingly.
1795         * config/sparc/sparc.md (movsi_pic_label_ref): Change label_ref_operand
1796         into symbolic_operand.
1797         (movsi_high_pic_label_ref): Likewise.
1798         (movsi_lo_sum_pic_label_ref): Likewise.
1799         (movdi_pic_label_ref): Likewise.
1800         (movdi_high_pic_label_ref): Likewise.
1801         (movdi_lo_sum_pic_label_ref): Likewise.
1802
1803 2018-04-06  Amaan Cheval  <amaan.cheval@gmail.com>
1804
1805         * config.gcc (x86_64-*-rtems*): Add rtems.h to tm_file for
1806         custom LIB_SPEC setup.
1807
1808 2018-04-06  Ruslan Bukin  <br@bsdpad.com>
1809             Kito Cheng  <kito.cheng@gmail.com>
1810
1811         * config.gcc (riscv*-*-freebsd*): Add RISC-V FreeBSD support.
1812         * config/riscv/freebsd.h: New.
1813
1814 2018-04-06  Chung-Ju Wu  <jasonwucj@gmail.com>
1815
1816         * config/nds32/nds32.c (nds32_adjust_insn_length): Refine.
1817         * config/nds32/nds32.h (ADJUST_INSN_LENGTH): Change the location in
1818         file.
1819
1820 2018-04-06  Chung-Ju Wu  <jasonwucj@gmail.com>
1821             Kito Cheng  <kito.cheng@gmail.com>
1822
1823         * config/nds32/nds32-md-auxiliary.c (nds32_output_return,
1824         nds32_output_call, nds32_symbol_binds_local_p): New functions.
1825         * config/nds32/nds32-protos.h (nds32_output_call,
1826         nds32_output_return): Declare.
1827         * config/nds32/nds32.md: Refine all the call and return patterns.
1828
1829 2018-04-06  Jakub Jelinek  <jakub@redhat.com>
1830
1831         PR debug/85252
1832         * dwarf2out.c (rtl_for_decl_init): For STRING_CST initializer only
1833         build CONST_STRING if TYPE_MAX_VALUE is non-NULL and is INTEGER_CST.
1834
1835         PR rtl-optimization/84872
1836         * cfgloopmanip.c (create_preheader): Use make_forwarder_block even if
1837         nentry == 1 when CP_FALLTHRU_PREHEADERS and single_entry is
1838         EDGE_CROSSING edge.
1839
1840 2018-04-06  Tamar Christina  <tamar.christina@arm.com>
1841
1842         * expr.c (copy_blkmode_to_reg): Revert 254862.
1843         * doc/sourcebuild.texi (word_mode_no_slow_unalign): Likewise.
1844
1845 2018-04-06  Richard Biener  <rguenther@suse.de>
1846
1847         PR middle-end/85244
1848         * tree-dfa.c (get_ref_base_and_extent): Reset seen_variable_array_ref
1849         after seeing a component reference with an adjacent field.  Treat
1850         refs to arrays at struct end of external decls similar to
1851         refs to unconstrained commons.
1852
1853 2018-04-06  Jakub Jelinek  <jakub@redhat.com>
1854
1855         PR sanitizer/85213
1856         * fold-const.c (twoval_comparison_p): Remove SAVE_P argument and don't
1857         look through SAVE_EXPRs with non-side-effects argument.  Adjust
1858         recursive calls.
1859         (fold_comparison): Adjust twoval_comparison_p caller, don't handle
1860         save_p here.
1861
1862 2018-04-06  Richard Biener  <rguenther@suse.de>
1863
1864         PR middle-end/85180
1865         * alias.c (find_base_term): New wrapper around find_base_term
1866         unwinding CSELIB_VAL_PTR changes.
1867         (find_base_term): Do not restore CSELIB_VAL_PTR during the
1868         recursion.
1869
1870 2018-04-06  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
1871
1872         * config/s390/s390.c (s390_z10_optimize_cmp): Expand dedicated NOP
1873         instructions.
1874         * config/s390/s390.md (UNSPECV_NOP_LR_0, UNSPECV_NOP_LR_1): New
1875         constant definitions.
1876         ("nop"): lr 0,0 -> nopr r0
1877         ("nop_lr0", "nop_lr1"): New insn definitions.
1878
1879 2018-04-06  Chung-Ju Wu  <jasonwucj@gmail.com>
1880
1881         * config/nds32/nds32.md (*stack_push, *stack_pop): Use
1882         NDS32_V3PUSH_AVAILABLE_P macro.
1883
1884 2018-04-06  Monk Chiang  <sh.chiang04@gmail.com>
1885             Chung-Ju Wu  <jasonwucj@gmail.com>
1886
1887         * config.gcc (nds32*-*-*): Add v2j v3f v3s checking.
1888         (nds32*-*-*): Add float and fpu_config into supported_defaults.
1889         * common/config/nds32/nds32-common.c (TARGET_DEFAULT_TARGET_FLAGS):
1890         Include TARGET_DEFAULT_FPU_ISA and TARGET_DEFAULT_FPU_FMA.
1891         * config/nds32/constants.md (unspec_element): Add UNSPEC_COPYSIGN,
1892         UNSPEC_FCPYNSD, UNSPEC_FCPYNSS, UNSPEC_FCPYSD and UNSPEC_FCPYSS.
1893         * config/nds32/constraints.md: New constraints and checking for hard
1894         float configuration.
1895         * config/nds32/iterators.md: New mode iterator and attribute for hard
1896         float configuration.
1897         * config/nds32/nds32-doubleword.md: Use hard float alternatives and
1898         patterns.
1899         * config/nds32/nds32-fpu.md: New file.
1900         * config/nds32/nds32-md-auxiliary.c: New functions and checkings to
1901         deal with hard float code generation.
1902         * config/nds32/nds32-opts.h (nds32_arch_type): Add ARCH_V3F and
1903         ARCH_V3S.
1904         (abi_type, float_reg_number): New enum type.
1905         * config/nds32/nds32-predicates.c: New predicates for hard float.
1906         * config/nds32/nds32-protos.h: Declare functions for hard float.
1907         * config/nds32/nds32.c: Implementation for hard float configuration.
1908         * config/nds32/nds32.h: Definitions for hard float configuration.
1909         * config/nds32/nds32.md: Include hard float machine description and
1910         modify patterns for hard float configuration.
1911         * config/nds32/nds32.opt: New options for hard float configuration.
1912         * config/nds32/predicates.md: New predicates for hard float
1913         configuration.
1914
1915 2018-04-06  Kuan-Lin Chen  <kuanlinchentw@gmail.com>
1916
1917         * common/config/nds32/nds32-common.c
1918         (nds32_option_optimization_table): Enable -mreleax-hint by default.
1919
1920 2018-04-05  Jakub Jelinek  <jakub@redhat.com>
1921
1922         PR middle-end/85195
1923         * match.pd (BIT_FIELD_REF CONSTRUCTOR@0 @1 @2): Use view_convert around
1924         CONSTRUCTOR_ELT (ctor, ...)->value.
1925
1926 2018-04-05  Uros Bizjak  <ubizjak@gmail.com>
1927
1928         PR target/85193
1929         * config/i386/i386.md (define_attr "memory"): Handle rotate1 type.
1930
1931 2018-04-05  Tom de Vries  <tom@codesourcery.com>
1932
1933         PR target/85204
1934         * config/nvptx/nvptx.c (nvptx_single): Fix neutering of bb with only
1935         cond jump.
1936
1937 2018-04-05  Shiva Chen  <shiva0217@gmail.com>
1938             Kito Cheng  <kito.cheng@gmail.com>
1939
1940         * config/nds32/constraints.md (U33): Fine-tune checking condition.
1941         * config/nds32/nds32-md-auxiliary.c (nds32_mem_format): Ditto.
1942         * config/nds32/nds32.h (nds32_16bit_address_type): Add
1943         ADDRESS_POST_MODIFY_LO_REG_IMM3U.
1944
1945 2018-04-05  Shiva Chen  <shiva0217@gmail.com>
1946             Kito Cheng  <kito.cheng@gmail.com>
1947
1948         * config/nds32/constraints.md (Ufe): New memory constraint.
1949         * config/nds32/nds32-md-auxiliary.c (nds32_mem_format,
1950         nds32_output_16bit_load): Consider r8 register for lwi45.fe format.
1951         * config/nds32/nds32.c (nds32_print_operand): Output lwi45.fe
1952         operands.
1953         * config/nds32/nds32.h (nds32_16bit_address_type): Add ADDRESS_R8_IMM7U.
1954         * config/nds32/nds32.md (*mov<mode>): Adjust pattern.
1955
1956 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
1957
1958         * config/nds32/nds32.md: Use optimize_size in the condition for
1959         alu-shift instructions.
1960
1961 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
1962
1963         * config/nds32/nds32.md (divsi4, udivsi4): New patterns.
1964
1965 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
1966
1967         * config/nds32/nds32.md (negsi2): Refine pattern.
1968
1969 2018-04-05  Kito Cheng  <kito.cheng@gmail.com>
1970             Chung-Ju Wu  <jasonwucj@gmail.com>
1971
1972         * config/nds32/iterators.md (shift_rotate): New code iterator.
1973         (shift): New code attribute.
1974         * config/nds32/nds32-md-auxiliary.c (nds32_expand_constant): New.
1975         * config/nds32/nds32-protos.h (nds32_expand_constant): Declare.
1976         * config/nds32/nds32.c (nds32_print_operand): Deal with more cases.
1977         * config/nds32/nds32.md (addsi3, *add_srli): Refine implementation for
1978         bit-wise operations.
1979         (andsi3, *andsi3): Ditto.
1980         (iorsi3, *iorsi3, *or_slli, *or_srli): Ditto.
1981         (xorsi3, *xorsi3, *xor_slli, *xor_srli): Ditto.
1982         (<shift>si3, *ashlsi3, *ashrsi3, *lshrsi3, *rotrsi3): Ditto.
1983         * config/nds32/predicates.md (nds32_rimm5u_operand, nds32_and_operand,
1984         nds32_ior_operand, nds32_xor_operand): New predicates.
1985
1986 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
1987
1988         * config/nds32/nds32.md (add<mode>3, sub<mode>3): Rename to ...
1989         (addsi3, subsi3): ... this.
1990
1991 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
1992
1993         * config/nds32/nds32.md (*sub_srli, *and_slli): Fine-tune predicator.
1994
1995 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
1996
1997         * config/nds32/nds32.md: Adjust indention.
1998
1999 2018-04-05  Kito Cheng  <kito.cheng@gmail.com>
2000
2001         * config/nds32/nds32.md (feature): New attribute.
2002
2003 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
2004
2005         * config/nds32/nds32.md (subtype): New attribute.
2006
2007 2018-04-04  Thomas Preud'homme  <thomas.preudhomme@arm.com>
2008
2009         PR target/85203
2010         * config/arm/arm-builtins.c (arm_expand_builtin): Change
2011         expansion to perform a bitwise AND of the argument followed by a
2012         boolean negation of the result.
2013
2014 2018-04-04  Peter Bergner  <bergner@vnet.ibm.com>
2015
2016         PR rtl-optimization/84878
2017         * ddg.c (add_cross_iteration_register_deps): Use DF_REF_BB to determine
2018         the basic block.  Assert the use reference is not artificial and that
2019         it has an associated insn.
2020
2021 2018-04-04  Michael Matz  <matz@suse.de>
2022
2023         * builtins.c (compute_objsize): Pass correct operand
2024         to array_at_struct_end_p.
2025
2026 2018-04-04  Richard Biener  <rguenther@suse.de>
2027
2028         PR lto/85176
2029         * dwarf2out.c (dwarf2out_register_external_die): Peel namespaces
2030         from contexts for DINFO_LEVEL_TERSE and below.
2031
2032 2018-04-04  Kito Cheng  <kito.cheng@gmail.com>
2033
2034         * config/nds32/nds32-doubleword.md (move_<mode>): Require
2035         resiter_operand condition.
2036         * config/nds32/nds32.md (*move<mode>): Ditto.
2037
2038 2018-04-04  Kito Cheng  <kito.cheng@gmail.com>
2039             Monk Chiang  <sh.chiang04@gmail.com>
2040
2041         * config/nds32/nds32.md (movmisalign<mode>): New pattern.
2042
2043 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
2044
2045         * config/nds32/nds32.md (movqi, movhi): Merge into mov<mode>.
2046
2047 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
2048             Kito Cheng  <kito.cheng@gmail.com>
2049
2050         * config/nds32/nds32-md-auxiliary.c (nds32_inverse_cond_code,
2051         nds32_cond_code_str, output_cond_branch,
2052         output_cond_branch_compare_zero, nds32_expand_cbranch,
2053         nds32_expand_cstore, nds32_expand_movcc,
2054         nds32_output_cbranchsi4_equality_zero,
2055         nds32_output_cbranchsi4_equality_reg,
2056         nds32_output_cbranchsi4_equality_reg_or_const_int,
2057         nds32_output_cbranchsi4_greater_less_zero: New functions.
2058         * config/nds32/nds32-protos.h (nds32_expand_cbranch,
2059         nds32_expand_cstore, nds32_expand_movcc,
2060         nds32_output_cbranchsi4_equality_zero,
2061         nds32_output_cbranchsi4_equality_reg,
2062         nds32_output_cbranchsi4_equality_reg_or_const_int,
2063         nds32_output_cbranchsi4_greater_less_zero): Declare.
2064         * config/nds32/predicates.md (nds32_movecc_comparison_operator,
2065         nds32_rimm11s_operand): New predicates.
2066         * config/nds32/nds32.h (nds32_expand_result_type): New enum type.
2067         * config/nds32/nds32.md: Rewrite all the branch and conditional move
2068         patterns.
2069
2070 2018-04-04  Kito Cheng  <kito.cheng@gmail.com>
2071
2072         * config/nds32/nds32-doubleword.md: Refine all the instruction type.
2073         * config/nds32/nds32.md: Ditto.
2074         * config/nds32/pipelines.md: Ditto.
2075
2076 2018-04-04  Richard Biener  <rguenther@suse.de>
2077
2078         PR tree-optimization/85168
2079         * tree-ssa-sccvn.c (vn_reference_maybe_forwprop_address): Avoid
2080         propagating abnormals.
2081
2082 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
2083
2084         * config/nds32/nds32.md (enabled): Use yes/no for this attribute.
2085
2086 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
2087             Kito Cheng  <kito.cheng@gmail.com>
2088
2089         * config/nds32/nds32-md-auxiliary.c (nds32_long_call_p): New function.
2090         * config/nds32/nds32-protos.h (nds32_long_call_p): Declare.
2091         * config/nds32/nds32.c (nds32_function_ok_for_sibcall): New function.
2092         (TARGET_FUNCTION_OK_FOR_SIBCALL): Define.
2093         * config/nds32/nds32.md (sibcall_internal): New.
2094         (sibcall_register): Remove.
2095         (sibcall_immediate): Remove.
2096         (sibcall_value_internal): New.
2097         (sibcall_value_register): Remove.
2098         (sibcall_value_immediate): Remove.
2099         * config/nds32/predicates.md (nds32_general_register_operand): New.
2100         (nds32_call_address_operand): New.
2101
2102 2018-04-03  Jakub Jelinek  <jakub@redhat.com>
2103
2104         PR rtl-optimization/85167
2105         * shrink-wrap.c (move_insn_for_shrink_wrap): Don't set bb_uses and
2106         bb_defs if *split_p, instead preinitialize it to NULL.
2107
2108         PR tree-optimization/85156
2109         * builtins.c (fold_builtin_expect): Use save_expr on arg1 to avoid
2110         evaluating the argument multiple times.
2111
2112 2018-04-03  Bill Schmidt  <wschmidt@linux.ibm.com>
2113
2114         * config/rs6000/emmintrin.h (_mm_cvtpd_epi32): Use __vector rather
2115         than vector.
2116         (_mm_cvtpd_ps): Likewise.
2117         (_mm_cvttpd_epi32): Likewise.
2118         * config/rs6000/mmintrin.h (_mm_unpacklo_pi8): Likewise.
2119         * config/rs6000/xmmintrin.h: For strict-ANSI C++ or C11, undefine
2120         vector, pixel, and bool following altivec.h include.
2121
2122 2018-04-03  Martin Sebor  <msebor@redhat.com>
2123
2124         * doc/extend.texi (Common Function Attributes): Clarify.
2125         (const attribute): Likewise.
2126         (pure attribute): Likewise.
2127
2128 2018-04-03  Jakub Jelinek  <jakub@redhat.com>
2129
2130         PR target/85169
2131         * config/i386/i386.c (ix86_expand_vector_set): Use
2132         HOST_WIDE_INT_1U << elt instead of 1 << elt.  Formatting fix.
2133
2134 2018-04-03  Uros Bizjak  <ubizjak@gmail.com>
2135
2136         * config/i386/i386.c (emit_i387_cw_initialization): Always use logic
2137         instructions when changing rounding bits to preserve precision bits
2138         in the x87 control word.
2139
2140 2018-04-03  Martin Liska  <mliska@suse.cz>
2141
2142         PR tree-optimization/82491
2143         * rtl.h (strip_offset_and_add): Replace += suboffset with
2144         poly_uint64 () + suboffset.
2145
2146 2018-03-29  Martin Liska  <mliska@suse.cz>
2147             Martin Jambor  <mjambor@suse.cz>
2148
2149         PR ipa/84947
2150         * ipa-cp.c (propagate_bits_across_jump_function): Bail out if
2151         param_type is not an integral or pointer type.
2152
2153 2018-04-03  Richard Biener  <rguenther@suse.de>
2154
2155         * sese.h (recompute_all_dominators): Remove.
2156
2157 2018-04-02  Martin Sebor  <msebor@redhat.com>
2158
2159         * doc/invoke.texi (-Wrestrict): Fix typos.
2160
2161 2018-04-02  Jim Wilson  <jimw@sifive.com>
2162
2163         * config/riscv/riscv.h (SHIFT_COUNT_TRUNCATED): Set to zero.
2164         * config/riscv/riscv.md (<optab>si3): Use QImode shift count.
2165         (<optab>di3, <optab>si3_extend): Likewise.
2166         (<optab>si3_mask, <optab>si3_mask_1): New.
2167         (<optab>di3_mask, <optab>di3_mask_1): New.
2168         (<optab>si3_extend_mask, <optab>si3_extend_mask_1): New.
2169         (lshrsi3_zero_extend_1): Use VOIDmode shift count.
2170         * config/riscv/sync.md (atomic_test_and_set): Emit QImode shift count.
2171
2172 2018-04-02  Gerald Pfeifer  <gerald@pfeifer.com>
2173
2174         * doc/cpp.texi (Variadic Macros): Fix line continuation in an
2175         example.
2176
2177 2018-04-02  Chung-Ju Wu  <jasonwucj@gmail.com>
2178
2179         * config/nds32/nds32.c (TARGET_CANONICALIZE_COMPARISON): Define.
2180         (nds32_canonicalize_comparison): New function.
2181
2182 2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
2183             Kito Cheng  <kito.cheng@gmail.com>
2184             Kuan-Lin Chen  <kuanlinchentw@gmail.com>
2185
2186         * config.gcc (nds32): Add nds32-relax-opt.o into extra_objs.
2187         * config/nds32/constants.md (unspec_volatile_element): Add
2188         UNSPEC_VOLATILE_RELAX_GROUP.
2189         * config/nds32/nds32-relax-opt.c: New file.
2190         * config/nds32/nds32-predicates.c
2191         (nds32_symbol_load_store_p): New function.
2192         * config/nds32/nds32-protos.h
2193         (nds32_symbol_load_store_p): Declare function.
2194         (make_pass_nds32_relax_opt): Declare new rtl pass function.
2195         * config/nds32/nds32.c
2196         (nds32_register_pass): New function to register pass.
2197         (nds32_register_passes): New function to register passes.
2198         * config/nds32/nds32.md (relax_group): New pattern.
2199         * config/nds32/nds32.opt (mrelax-hint): New option.
2200         * config/nds32/t-nds32 (nds32-relax-opt.o): New dependency.
2201
2202 2018-04-01  Kito Cheng  <kito.cheng@gmail.com>
2203
2204         * config/nds32/t-nds32: Modify files dependency.
2205
2206 2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
2207
2208         * config/nds32/nds32.h (FUNCTION_PROFILER): Output newline character.
2209         (PROFILE_HOOK): Define its implementation.
2210
2211 2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
2212
2213         * config/nds32/nds32.h (WCHAR_TYPE, WCHAR_TYPE_SIZE): Use unsigned int
2214         type and 32-bit size.
2215
2216 2018-04-01  Jakub Jelinek  <jakub@redhat.com>
2217
2218         PR middle-end/85090
2219         * config/i386/sse.md (V): Add V64QI and V32HI for TARGET_AVX512F.
2220         (V_128_256): New mode iterator.
2221         (*avx512dq_vextract<shuffletype>64x2_1 splitter): New define_split.
2222         (*avx512f_vextract<shuffletype>32x4_1 splitter): Likewise.
2223         (xop_pcmov_<mode><avxsizesuffix>): Use V_128_256 mode iterator instead
2224         of V.
2225         * config/i386/i386.c (ix86_expand_vector_set): Improve V32HImode and
2226         V64QImode expansion for !TARGET_AVX512BW && TARGET_AVX512F.
2227
2228 2018-03-31  Segher Boessenkool  <segher@kernel.crashing.org>
2229
2230         PR target/83315
2231         * config/rs6000/xmmintrin.h (_mm_set_ps, _mm_max_ps): Handle (quiet)
2232         NaN inputs correctly.
2233
2234 2018-03-30  Peter Bergner  <bergner@vnet.ibm.com>
2235
2236         PR target/80546
2237         * config/rs6000/vsx.md (??r): New mode attribute.
2238         (*vsx_mov<mode>_64bit): Use it.
2239         (*vsx_mov<mode>_32bit): Likewise.
2240
2241 2018-03-30  Martin Sebor  <msebor@redhat.com>
2242
2243         PR tree-optimization/84818
2244         * builtins.c (check_access): Use warning_n.
2245
2246 2018-03-30  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
2247
2248         PR target/83822
2249         * config/rs6000/rs6000-string.c (expand_compare_loop): Fix redundant
2250         condition.
2251         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Fix redundant
2252         condition.
2253
2254 2018-03-30  Julia Koval  <julia.koval@intel.com>
2255
2256         PR target/84413
2257         * x86-tune.def (movx, partial_reg_dependency): Enable for
2258         m_SKYLAKE_AVX512.
2259
2260 2018-03-29  Vladimir Makarov  <vmakarov@redhat.com>
2261
2262         PR inline-asm/84985
2263         * lra-constraints.c (process_alt_operands): Move setting
2264         this_alternative_matches below.
2265
2266 2018-03-29  Martin Liska  <mliska@suse.cz>
2267
2268         PR lto/84995.
2269         * doc/invoke.texi: Document how LTO works with debug info.
2270         Describe auto-load support of binutils.  Mention 'x86-64'
2271         as valid option value of -march option.
2272
2273 2018-03-29  Jakub Jelinek  <jakub@redhat.com>
2274
2275         * config/i386/sse.md (<avx512>_blendm<mode>): Use <sseintprefix>.
2276
2277         PR c/85094
2278         * fold-const.c (operand_equal_p): Handle DEBUG_BEGIN_STMT.
2279         For STATEMENT_LIST, pass down OEP_LEXICOGRAPHIC and maybe
2280         OEP_NO_HASH_CHECK for recursive call, to avoid exponential
2281         checking.
2282
2283 2018-03-28  Peter Bergner  <bergner@vnet.ibm.com>
2284
2285         PR target/84912
2286         * config/rs6000/rs6000.h (RS6000_BTM_POWERPC64): New define.
2287         (RS6000_BTM_COMMON): Add RS6000_BTM_POWERPC64.
2288         * config/rs6000/rs6000.c (rs6000_builtin_mask_calculate): Add support
2289         for RS6000_BTM_POWERPC64.
2290         (rs6000_invalid_builtin): Add handling for RS6000_BTM_POWERPC64
2291         (rs6000_builtin_mask_names): Add RS6000_BTM_POWERPC64.
2292         * config/rs6000/rs6000-builtin.def (BU_P7_POWERPC64_MISC_2): New macro
2293         definition.
2294         (DIVDE): Use it.
2295         (DIVDEU): Likewise.
2296
2297 2018-03-28 Carl Love  <cel@us.ibm.com>
2298
2299         Revert
2300         2017-09-27  Carl Love  <cel@us.ibm.com>
2301
2302         * config/rs6000/rs6000-builtin.def (BU_FP_1MISC_1): Add define macro.
2303         (FCTID, FCTIW): Add BU_FP_MISC_1 macro expansion for builtins.
2304         * config/rs6000/rs6000.md (lrintsfsi2): Add define_insn for the
2305         fctiw instruction.
2306
2307 2018-03-28  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
2308
2309         * config/rs6000/xmmintrin.h (_mm_max_pi16): Use __vector __bool
2310         instead of __vector bool.
2311         (_mm_max_pu8): Likewise.
2312         (_mm_min_pi16): Likewise.
2313
2314 2018-03-28  Peter Bergner  <bergner@vnet.ibm.com>
2315
2316         PR target/84912
2317         * config/rs6000/rs6000-builtin.def (DIVWEO): Delete macro expansion.
2318         (DIVWEUO): Likewise.
2319         (DIVDEO): Likewise.
2320         (DIVDEUO): Likewise.
2321         * config/rs6000/rs6000.c (builtin_function_type): Remove support for
2322         DIVWEUO and DIVDEUO.
2323         * config/rs6000/rs6000.md (UNSPEC_DIVEO, UNSPEC_DIVEUO): Delete unspecs.
2324         (UNSPEC_DIV_EXTEND): Remove deleted unspecs.
2325         (div_extend): Likewise.
2326         * doc/extend.texi (__builtin_divweo): Remove documentation for deleted
2327         builtin function.
2328         (__builtin_divweuo): Likewise.
2329         (__builtin_divdeo): Likewise.
2330         (__builtin_divdeuo): Likewise.
2331
2332 2018-03-28  Jakub Jelinek  <jakub@redhat.com>
2333
2334         PR target/85095
2335         * config/i386/i386.md (*add<mode>3_carry_0, *addsi3_carry_zext_0,
2336         *sub<mode>3_carry_0, *subsi3_carry_zext_0): New patterns.
2337
2338         PR tree-optimization/82004
2339         * gimple-match-head.c (optimize_pow_to_exp): New function.
2340         * match.pd (pow(C,x) -> exp(log(C)*x)): Wrap with #if GIMPLE.
2341         Don't fold to exp if optimize_pow_to_exp is false.
2342
2343 2018-03-28  Martin Liska  <mliska@suse.cz>
2344
2345         PR other/84819
2346         * calls.c (initialize_argument_information): Fix trailing space.
2347         * common.opt: Fix typo and provide better explanation for
2348         -fsanitize-coverage option.
2349         * config/i386/i386.opt: Fix typo.
2350
2351 2018-03-28  Jakub Jelinek  <jakub@redhat.com>
2352             Martin Liska  <mliska@suse.cz>
2353
2354         PR sanitizer/85081
2355         * gimplify.c (asan_poison_variable): Don't do the check for
2356         gimplify_omp_ctxp here.
2357         (gimplify_decl_expr): Do it here.
2358         (gimplify_target_expr): Likewise.
2359
2360 2018-03-28  Martin Liska  <mliska@suse.cz>
2361
2362         PR target/84988
2363         * config/i386/i386.c (ix86_function_arg_advance): Do not call
2364         chkp_type_bounds_count if MPX is not enabled.
2365
2366 2018-03-27  Chung-Ju Wu  <jasonwucj@gmail.com>
2367
2368         * config/nds32/nds32.h (BRANCH_COST): Adjust cost.
2369
2370 2018-03-27  Michael Meissner  <meissner@linux.vnet.ibm.com>
2371
2372         PR target/84914
2373         * config/rs6000/rs6000.c (create_complex_muldiv): New helper
2374         function to create the function decl for complex long double
2375         multiply and divide for -mabi=ieeelongdouble.
2376         (init_float128_ieee): Call it.
2377
2378 2018-03-27  H.J. Lu  <hongjiu.lu@intel.com>
2379
2380         PR target/85044
2381         * config/i386/i386.c (ix86_trampoline_init): Insert ENDBR for
2382         -fcf-protection=branch -mibt.
2383         * config/i386/i386.h (TRAMPOLINE_SIZE): Increased by 4 bytes.
2384
2385 2018-03-27  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
2386
2387         PR target/81863
2388         * config/arm/arm.c (arm_valid_symbolic_address): Handle arm_word_relocations
2389
2390 2018-03-27  Cesar Philippidis  <cesar@codesourcery.com>
2391
2392         PR target/85056
2393         * config/nvptx/nvptx.c (nvptx_assemble_decl_begin): Add '[]' to
2394         extern array declarations.
2395
2396 2018-03-27  Richard Biener  <rguenther@suse.de>
2397
2398         PR middle-end/84067
2399         * match.pd ((A * C) +- (B * C) -> (A+-B) * C): Guard with
2400         explicit single_use checks.
2401
2402 2018-03-27  Richard Biener  <rguenther@suse.de>
2403
2404         PR tree-optimization/85082
2405         * tree-ssa-sccvn.c (vn_reference_lookup_or_insert_for_pieces):
2406         Valueize the VUSE.
2407
2408 2018-03-27  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
2409
2410         * config.gcc (aarch64*-*-linux*): New TARGET_DEFAULT_ASYNC_UNWIND_TABLES
2411         * common/config/aarch64/aarch64-common.c (aarch64_optimization_table[]):
2412         Turn on fasynchronous-unwind-tables and funwind-tables.
2413
2414 2018-03-26  Uros Bizjak  <ubizjak@gmail.com>
2415
2416         PR target/85073
2417         * config/i386/i386.md (*bmi_blsr_<mode>_cmp): New insn pattern.
2418         (*bmi_blsr_<mode>_ccz): Ditto.
2419
2420 2018-03-26  Tom de Vries  <tom@codesourcery.com>
2421
2422         PR tree-optimization/85063
2423         * omp-general.c (offloading_function_p): New function.  Factor out
2424         of ...
2425         * omp-offload.c (pass_omp_target_link::gate): ... here.
2426         * omp-general.h (offloading_function_p): Declare.
2427         * tree-switch-conversion.c (build_one_array): Mark CSWTCH.x variable
2428         with attribute omp declare target for offloading functions.
2429
2430 2018-03-24  Richard Sandiford  <richard.sandiford@linaro.org>
2431
2432         PR tree-optimization/84005
2433         * tree-data-ref.h (get_base_for_alignment): Declare.
2434         * tree-data-ref.c (get_base_for_alignment_1): New function.
2435         (get_base_for_alignment): Likewise.
2436         * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Use
2437         get_base_for_alignment to find a suitable base object, instead
2438         of always using drb->base_address.
2439
2440 2018-03-23  Jakub Jelinek  <jakub@redhat.com>
2441
2442         PR inline-asm/85022
2443         * emit-rtl.c (init_emit_regs): Indicate that VOIDmode MEMs don't have
2444         known size by default.
2445
2446 2018-03-23  Vladimir Makarov  <vmakarov@redhat.com>
2447
2448         PR inline-asm/85030
2449         * lra-constraints.c (process_alt_operands): Don't match BLKmode
2450         and non BLKmode operands.
2451
2452 2018-03-23  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
2453
2454         PR target/85026
2455         * config/arm/arm.md (unaligned_loadhis): Remove first alternative.
2456         Clean up attributes.
2457
2458 2018-03-23  Richard Biener  <rguenther@suse.de>
2459
2460         PR debug/85020
2461         * dwarf2out.c (rtl_for_decl_location): Do not generate RTL early when
2462         we are going to emit early debug for LTO.
2463
2464 2018-03-23  Jakub Jelinek  <jakub@redhat.com>
2465
2466         PR inline-asm/85034
2467         * function.c (match_asm_constraints_1): Don't optimize if input
2468         doesn't satisfy general_operand predicate for output's mode.
2469
2470         PR inline-asm/85022
2471         * alias.c (write_dependence_p): Don't require for x_canonicalized
2472         non-VOIDmode if x has VOIDmode.
2473
2474         PR sanitizer/85029
2475         * sanopt.c (maybe_optimize_ubsan_ptr_ifn): If DECL_REGISTER (base),
2476         just don't try to optimize it rather than assert it never happens.
2477
2478 2018-03-22  Kelvin Nilsen  <kelvin@gcc.gnu.org>
2479
2480         * config/rs6000/rs6000-builtin.def: Remove various BU_ALTIVEC_X
2481         macro expansions for definition of ST_INTERNAL_<mode> and
2482         LD_INTERNAL_<mode> builtins.
2483         * config/rs6000/rs6000-protos.h (rs6000_address_for_altivec):
2484         Remove prototype.
2485         * config/rs6000/rs6000.c (altivec_expand_ld_builtin): Delete this
2486         function.
2487         (altivec_expand_st_builtin): Likewise.
2488         (altivec_expand_builtin): Remove calls to deleted functions.
2489         (rs6000_address_for_altivec): Delete this function.
2490         * config/rs6000/vector.md: Remove expands for
2491         vector_altivec_load_<mode> and vector_altivec_store_<mode>.
2492
2493 2018-03-22  Sudakshina Das  <sudi.das@arm.com>
2494
2495         PR target/84826
2496         * config/arm/arm.h (machine_function): Add static_chain_stack_bytes.
2497         * config/arm/arm.c (arm_compute_static_chain_stack_bytes): Avoid
2498         re-computing once computed.
2499         (arm_expand_prologue): Compute machine->static_chain_stack_bytes.
2500         (arm_init_machine_status): Initialize
2501         machine->static_chain_stack_bytes.
2502
2503 2018-03-22  Kelvin Nilsen  <kelvin@gcc.gnu.org>
2504
2505         PR target/84760
2506         * doc/extend.texi: Add four new prototypes for vec_ld.
2507         * config/rs6000/rs6000-builtin.def (LVX_V1TI): Reorder symbol
2508         definitions for more logical presentation.
2509         * config/rs6000/rs6000-c.c: (altivec_overloaded_builtins): Add
2510         entries for V1TI variants of __builtin_altivec_ld builtin.
2511         * config/rs6000/rs6000.c: (altivec_expand_lv_builtin): Add test and
2512         handling of V1TI variant of LVX icode pattern.
2513         (altivec_expand_builtin): Add case for ALTIVEC_BUILTIN_LVX_V1TI.
2514         (rs6000_gimple_fold_builtin): Likewise.
2515         (altivec_init_builtins): Add code to define
2516         __builtin_altivec_lvx_v1ti function.
2517
2518 2018-03-22  Jakub Jelinek  <jakub@redhat.com>
2519
2520         PR inline-asm/84941
2521         * function.c (match_asm_constraints_1): Don't do the optimization
2522         if input isn't a REG, SUBREG, MEM or constant.
2523
2524 2018-03-22  Tom de Vries  <tom@codesourcery.com>
2525
2526         PR tree-optimization/84956
2527         * tree-ssa-tail-merge.c (find_clusters_1): Skip bbs with
2528         bb_has_abnormal_pred.
2529
2530 2018-03-22  Jakub Jelinek  <jakub@redhat.com>
2531
2532         PR sanitizer/85018
2533         * dwarf2asm.c (dw2_output_indirect_constant_1): Set
2534         DECL_INITIAL (decl) to decl at the end.
2535         * varasm.c (use_blocks_for_decl_p): Revert the 2018-03-20 change,
2536         adjust the comment.
2537
2538 2018-03-21  Joseph Myers  <joseph@codesourcery.com>
2539
2540         * doc/extend.texi (__builtin_tgmath): Document when complex
2541         integer types are treated as _Complex _Float64.
2542
2543 2018-03-21  Tom de Vries  <tom@codesourcery.com>
2544
2545         * doc/extend.texi (__builtin_extend_pointer): Remove pasto.
2546
2547 2018-03-21  Jakub Jelinek  <jakub@redhat.com>
2548
2549         PR tree-optimization/84960
2550         * tree-cfg.c (remove_bb): Don't move forced labels into bb->prev_bb
2551         if it is ENTRY block, move them into single succ of ENTRY in that case.
2552
2553 2018-03-21  Richard Sandiford  <richard.sandiford@linaro.org>
2554
2555         PR tree-optimization/84811
2556         * poly-int.h (poly_span_traits): Remove the T3 parameter and
2557         promote HOST_WIDE_INT T2 - T1 results to unsigned HOST_WIDE_INT.
2558         (maybe_in_range_p, known_in_range_p, ranges_known_overlap_p):
2559         (known_subrange_p): Update accordingly.  Cast each value involved
2560         in the size comparison, rather than casting the result of the
2561         subtraction.
2562
2563 2018-03-21  Jakub Jelinek  <jakub@redhat.com>
2564
2565         PR tree-optimization/84982
2566         * gimple-ssa-store-merging.c (invert_op): Handle boolean inversion
2567         by flipping the least significant bit rather than all bits from
2568         bitpos to bitpos + bitsize - 1.
2569
2570 2018-03-21  Nathan Sidwell  <nathan@acm.org>
2571
2572         * doc/extend.texi (Deprecated Features): Remove mention of
2573         long-deleted deprecations.
2574
2575 2018-03-21  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2576
2577         PR jit/84288
2578         * configure.ac (gcc_cv_ld_soname) <*-*-solaris2*>: Set.
2579         * configure: Regenerate.
2580
2581 2018-03-21  Tom de Vries  <tom@codesourcery.com>
2582
2583         PR tree-optimization/83126
2584         * tree-parloops.c (num_phis): New function.
2585         (gen_parallel_loop): Detect and handle canonicalize_loop_ivs failure.
2586
2587 2018-03-21  Nathan Sidwell  <nathan@acm.org>
2588
2589         * doc/extend.texi (Deprecated Features): Update deprecated flags,
2590         mention anon-struct/union members and trailing attributes.
2591
2592 2018-03-21  Bin Cheng  <bin.cheng@arm.com>
2593
2594         PR tree-optimization/84969
2595         * tree-loop-distribution.c (fuse_memset_builtins): Don't reorder
2596         builtin memset partitions if they set different rhs values.
2597
2598 2018-03-21  Jakub Jelinek  <jakub@redhat.com>
2599
2600         PR rtl-optimization/84989
2601         * simplify-rtx.c (simplify_unary_operation_1): Don't try to simplify
2602         VEC_DUPLICATE with scalar result mode.
2603
2604 2018-03-21  Martin Liska  <mliska@suse.cz>
2605
2606         PR ipa/84963
2607         * ipa-icf.c (sem_item_optimizer::fixup_points_to_sets): Remove
2608         not intended return statement.
2609
2610 2018-03-21  Martin Liska  <mliska@suse.cz>
2611
2612         PR target/84988
2613         * tree-chkp.c (CHKP_ARRAY_MAX_CHECK_STEPS): Define a new macro.
2614         (chkp_find_bound_slots_1): Limit number of iterations.
2615
2616 2018-03-20  David H. Gutteridge  <dhgutteridge@sympatico.ca>
2617
2618         PR target/84838
2619         * Minor grammar fixes for x86 options.
2620
2621 2018-03-20  Jakub Jelinek  <jakub@redhat.com>
2622
2623         PR debug/84875
2624         * dce.c (delete_unmarked_insns): Don't remove frame related noop moves
2625         holding REG_CFA_RESTORE notes, instead turn them into a USE.
2626
2627 2018-03-20  Peter Bergner  <bergner@vnet.ibm.com>
2628
2629         PR target/83789
2630         * config/rs6000/altivec.md (altivec_lvx_<mode>_2op): Delete define_insn.
2631         (altivec_lvx_<mode>_1op): Likewise.
2632         (altivec_stvx_<mode>_2op): Likewise.
2633         (altivec_stvx_<mode>_1op): Likewise.
2634         (altivec_lvx_<VM2:mode>): New define_expand.
2635         (altivec_stvx_<VM2:mode>): Likewise.
2636         (altivec_lvx_<VM2:mode>_2op_<P:mptrsize>): New define_insn.
2637         (altivec_lvx_<VM2:mode>_1op_<P:mptrsize>): Likewise.
2638         (altivec_stvx_<VM2:mode>_2op_<P:mptrsize>): Likewise.
2639         (altivec_stvx_<VM2:mode>_1op_<P:mptrsize>): Likewise.
2640         * config/rs6000/rs6000-p8swap.c (rs6000_gen_stvx): Use new expanders.
2641         (rs6000_gen_lvx): Likewise.
2642         * config/rs6000/rs6000.c (altivec_expand_lv_builtin): Likewise.
2643         (altivec_expand_stv_builtin): Likewise.
2644         (altivec_expand_builtin): Likewise.
2645         * config/rs6000/vector.md: Likewise.
2646
2647 2018-03-20  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
2648
2649         PR target/82518
2650         * config/arm/arm.c (arm_array_mode_supported_p): Return false for
2651         BYTES_BIG_ENDIAN.
2652
2653 2018-03-20  Richard Biener  <rguenther@suse.de>
2654
2655         PR target/84986
2656         * config/i386/i386.c (ix86_add_stmt_cost): Only cost
2657         sign-conversions as zero, fall back to standard scalar_stmt
2658         cost for the rest.
2659
2660 2018-03-20  Martin Liska  <mliska@suse.cz>
2661
2662         PR ipa/84825
2663         * predict.c (rebuild_frequencies): Handle case when we have
2664         PROFILE_ABSENT, but flag_guess_branch_prob is false.
2665
2666 2018-03-20  Jakub Jelinek  <jakub@redhat.com>
2667
2668         PR target/84990
2669         * dwarf2asm.c (dw2_output_indirect_constant_1): Temporarily turn off
2670         flag_section_anchors.
2671         * varasm.c (use_blocks_for_decl_p): Remove hack for
2672         dw2_force_const_mem.
2673
2674         PR target/84845
2675         * config/aarch64/aarch64.md (*aarch64_reg_<mode>3_neg_mask2): Rename
2676         to ...
2677         (*aarch64_<optab>_reg_<mode>3_neg_mask2): ... this.  If pseudos can't
2678         be created, use lowpart_subreg of operands[0] rather than operands[0]
2679         itself.
2680         (*aarch64_reg_<mode>3_minus_mask): Rename to ...
2681         (*aarch64_ashl_reg_<mode>3_minus_mask): ... this.
2682         (*aarch64_<optab>_reg_di3_mask2): Use const_int_operand predicate
2683         and n constraint instead of aarch64_shift_imm_di and Usd.
2684         (*aarch64_reg_<optab>_minus<mode>3): Rename to ...
2685         (*aarch64_<optab>_reg_minus<mode>3): ... this.
2686
2687 2018-03-20  Sudakshina Das  <sudi.das@arm.com>
2688
2689         PR target/82989
2690         * config/arm/neon.md (ashldi3_neon): Update ?s for constraints
2691         to favor GPR over NEON registers.
2692         (<shift>di3_neon): Likewise.
2693
2694 2018-03-20  Tom de Vries  <tom@codesourcery.com>
2695
2696         PR target/84952
2697         * config/nvptx/nvptx.c (nvptx_single): Don't neuter bar.sync.
2698         (nvptx_process_pars): Emit bar.sync asap and alap.
2699
2700 2018-03-20  Tom de Vries  <tom@codesourcery.com>
2701
2702         PR target/84954
2703         * config/nvptx/nvptx.c (prevent_branch_around_nothing): Also update
2704         seen_label if seen_label is already set.
2705
2706 2018-03-20  Jakub Jelinek  <jakub@redhat.com>
2707
2708         PR target/84945
2709         * config/i386/i386.c (fold_builtin_cpu): For features above 31
2710         use __cpu_features2 variable instead of __cpu_model.__cpu_features[0].
2711         Use 1U instead of 1.  Formatting fixes.
2712
2713         PR c/84953
2714         * builtins.c (fold_builtin_strpbrk): For strpbrk(x, "") use type
2715         instead of TREE_TYPE (s1) for the return value.
2716
2717 2018-03-19  Jakub Jelinek  <jakub@redhat.com>
2718
2719         PR tree-optimization/84946
2720         * gimple-ssa-store-merging.c (mem_valid_for_store_merging): Compute
2721         bitsize + bitsize in poly_uint64 rather than poly_int64.
2722
2723         PR sanitizer/78651
2724         * dwarf2asm.c: Include fold-const.c.
2725         (dw2_output_indirect_constant_1): Set DECL_INITIAL (decl) to ADDR_EXPR
2726         of decl rather than decl itself.
2727
2728         PR rtl-optimization/84643
2729         * memmodel.h (enum memmodel): Add MEMMODEL_MAX enumerator.
2730
2731 2018-03-19  Maxim Ostapenko  <m.ostapenko@samsung.com>
2732
2733         PR sanitizer/78651
2734         * dwarf2asm.c (dw2_output_indirect_constant_1): Disable ASan before
2735         calling assemble_variable.
2736
2737 2018-03-19  Sudakshina Das  <sudi.das@arm.com>
2738
2739         PR target/81647
2740         * config/aarch64/aarch64-simd.md (vec_cmp<mode><v_int_equiv>): Modify
2741         instructions for UNLT, UNLE, UNGT, UNGE, UNEQ, UNORDERED and ORDERED.
2742
2743 2018-03-19  Jim Wilson  <jimw@sifive.com>
2744
2745         PR bootstrap/84856
2746         * config/riscv/riscv.c (riscv_function_arg_boundary): Use
2747         PREFERRED_STACK_BOUNDARY instead of STACK_BOUNDARY.
2748         (riscv_first_stack_step): Likewise.
2749         (riscv_option_override): Use STACK_BOUNDARY instead of
2750         MIN_STACK_BOUNDARY.
2751         * config/riscv/riscv.h (STACK_BOUNDARY): Renamed from
2752         MIN_STACK_BOUNDARY.
2753         (BIGGEST_ALIGNMENT): Set to 128.
2754         (PREFERRED_STACK_BOUNDARY): Renamed from STACK_BOUNDARY.
2755         (RISCV_STACK_ALIGN): Use PREFERRED_STACK_BOUNDARY instead of
2756         STACK_BOUNDARY.
2757
2758 2018-03-19  Richard Biener  <rguenther@suse.de>
2759
2760         PR tree-optimization/84933
2761         * tree-vrp.c (set_and_canonicalize_value_range): Treat out-of-bound
2762         values as -INF/INF when canonicalizing an ANTI_RANGE to a RANGE.
2763
2764 2018-03-19  Richard Biener  <rguenther@suse.de>
2765
2766         PR tree-optimization/84859
2767         * tree-ssa-phiopt.c (single_trailing_store_in_bb): New function.
2768         (cond_if_else_store_replacement): Perform sinking operation on
2769         single-store BBs regardless of MAX_STORES_TO_SINK setting.
2770         Generalize what a BB with a single eligible store is.
2771
2772 2018-03-19  Richard Biener  <rguenther@suse.de>
2773
2774         PR tree-optimization/84929
2775         * tree-data-ref.c (analyze_siv_subscript_cst_affine): Guard
2776         chrec_is_positive against non-chrec arg.
2777
2778 2018-03-19  Tamar Christina  <tamar.christina@arm.com>
2779
2780         PR target/84711
2781         * config/arm/arm.c (arm_can_change_mode_class): revert r258554.
2782
2783 2018-03-18  Martin Liska  <mliska@suse.cz>
2784
2785         PR rtl-optimization/84635
2786         * regrename.c (build_def_use): Use matches_mode only when
2787         matches >= 0.
2788
2789 2018-03-18  Richard Sandiford  <richard.sandiford@linaro.org>
2790
2791         PR tree-optimization/84913
2792         * tree-vect-loop.c (vectorizable_reduction): Don't try to
2793         vectorize chains of COND_EXPRs.
2794
2795 2018-03-18  Chung-Ju Wu  <jasonwucj@gmail.com>
2796
2797         * config/nds32/nds32.h (MAX_REGS_PER_ADDRESS): Fix the value.
2798
2799 2018-03-18  Chung-Ju Wu  <jasonwucj@gmail.com>
2800
2801         * config/nds32/nds32.h (LOGICAL_OP_NON_SHORT_CIRCUIT): Define.
2802
2803 2018-03-18  Chung-Ju Wu  <jasonwucj@gmail.com>
2804
2805         * config/nds32/nds32.h (CLZ_DEFINED_VALUE_AT_ZERO): Define.
2806
2807 2018-03-17  Chung-Ju Wu  <jasonwucj@gmail.com>
2808             Kito Cheng  <kito.cheng@gmail.com>
2809
2810         * config/nds32/nds32-protos.h (nds32_adjust_reg_alloc_order): Declare.
2811         * config/nds32/nds32.c (nds32_reg_alloc_order_for_speed): New array.
2812         (nds32_adjust_reg_alloc_order): New function.
2813         * config/nds32/nds32.h (ADJUST_REG_ALLOC_ORDER): Define.
2814
2815 2018-03-17  Kito Cheng  <kito.cheng@gmail.com>
2816
2817         * config/nds32/nds32.c (nds32_asm_output_mi_thunk,
2818         nds32_print_operand, nds32_print_operand_address): Use
2819         HOST_WIDE_INT_PRINT_DEC instead.
2820
2821 2018-03-17  Chung-Ju Wu  <jasonwucj@gmail.com>
2822
2823         * config/nds32/nds32.c (nds32_register_priority): Modify cost.
2824
2825 2018-03-17  Jakub Jelinek  <jakub@redhat.com>
2826
2827         PR target/84902
2828         * config/i386/i386.c (initial_ix86_tune_features,
2829         initial_ix86_arch_features): Use unsigned HOST_WIDE_INT rather than
2830         unsigned long long.
2831         (set_ix86_tune_features): Change ix86_tune_mask from unsigned int
2832         to unsigned HOST_WIDE_INT, initialize to HOST_WIDE_INT_1U << ix86_tune
2833         rather than 1u << ix86_tune.  Formatting fix.
2834         (ix86_option_override_internal): Change ix86_arch_mask from
2835         unsigned int to unsigned HOST_WIDE_INT, initialize to
2836         HOST_WIDE_INT_1U << ix86_arch rather than 1u << ix86_arch.
2837         (ix86_function_specific_restore): Likewise.
2838
2839 2018-03-16  Jakub Jelinek  <jakub@redhat.com>
2840
2841         PR target/84899
2842         * postreload.c (reload_combine_recognize_pattern): Perform
2843         INTVAL addition in unsigned HOST_WIDE_INT type to avoid UB and
2844         truncate_int_for_mode the result for the destination's mode.
2845
2846         PR c/84909
2847         * hsa-gen.c (mem_type_for_type): Fix comment typo.
2848         * tree-vect-loop-manip.c (vect_create_cond_for_niters_checks):
2849         Likewise.
2850         * gimple-ssa-warn-restrict.c (builtin_memref::set_base_and_offset):
2851         Likewise.
2852
2853 2018-03-16  Vladimir Makarov  <vmakarov@redhat.com>
2854
2855         PR target/84876
2856         * lra-assigns.c (lra_split_hard_reg_for): Don't use
2857         regno_allocno_class_array and sorted_pseudos.
2858         * lra-constraints.c (spill_hard_reg_in_range): Ignore hard regs in
2859         insns where regno is used.
2860
2861 2018-03-16  Martin Liska  <mliska@suse.cz>
2862
2863         PR ipa/84833
2864         * multiple_target.c (create_dispatcher_calls): Redirect
2865         reference in the symbol table.
2866
2867 2018-03-16  Martin Liska  <mliska@suse.cz>
2868
2869         PR ipa/84722
2870         * multiple_target.c (create_dispatcher_calls): Redirect also
2871         an alias.
2872
2873 2018-03-16  Jakub Jelinek  <jakub@redhat.com>
2874
2875         PR c++/79937
2876         PR c++/82410
2877         * tree.h (TARGET_EXPR_NO_ELIDE): Define.
2878         * gimplify.c (gimplify_modify_expr_rhs): Don't elide TARGET_EXPRs with
2879         TARGET_EXPR_NO_ELIDE flag set unless *expr_p is INIT_EXPR.
2880
2881 2018-03-16  Julia Koval  <julia.koval@intel.com>
2882
2883         * doc/invoke.texi (Skylake Server): Add CLWB.
2884         Cannonlake): Remove CLWB.
2885
2886 2018-03-16  Jakub Jelinek  <jakub@redhat.com>
2887
2888         PR tree-optimization/84841
2889         * tree-ssa-reassoc.c (INTEGER_CONST_TYPE): Change to 1 << 4 from
2890         1 << 3.
2891         (FLOAT_ONE_CONST_TYPE): Define.
2892         (constant_type): Return FLOAT_ONE_CONST_TYPE for -1.0 and 1.0.
2893         (sort_by_operand_rank): Put entries with higher constant_type last
2894         rather than first to match comments.
2895
2896 2018-03-15  Sandra Loosemore  <sandra@codesourcery.com>
2897
2898         * config/nios2/nios2.md (movsi_internal): Fix thinko in
2899         split predicate.
2900
2901 2018-03-15  Jakub Jelinek  <jakub@redhat.com>
2902
2903         PR c++/79085
2904         * calls.c (expand_call): For TREE_ADDRESSABLE rettype ignore alignment
2905         check and use address of target always.
2906
2907 2018-03-15  H.J. Lu  <hongjiu.lu@intel.com>
2908
2909         PR target/84574
2910         * config/i386/i386.c (indirect_thunk_needed): Update comments.
2911         (indirect_thunk_bnd_needed): Likewise.
2912         (indirect_thunks_used): Likewise.
2913         (indirect_thunks_bnd_used): Likewise.
2914         (indirect_return_needed): New.
2915         (indirect_return_bnd_needed): Likewise.
2916         (output_indirect_thunk_function): Add a bool argument for
2917         function return.
2918         (output_indirect_thunk_function): Don't generate alias for
2919         function return thunk.
2920         (ix86_code_end): Call output_indirect_thunk_function to generate
2921         function return thunks.
2922         (ix86_output_function_return): Set indirect_return_bnd_needed
2923         and indirect_return_needed instead of indirect_thunk_bnd_needed
2924         and indirect_thunk_needed.
2925
2926 2018-03-15  Olga Makhotina  <olga.makhotina@intel.com>
2927
2928         * config/i386/sgxintrin.h (_enclv_u32): New intrinsic.
2929         (__enclv_bc, __enclv_cd, __enclv_generic): New definitions.
2930         (ERDINFO, ETRACKC, ELDBC, ELDUC): New leaves.
2931
2932 2018-03-15  David Malcolm  <dmalcolm@redhat.com>
2933             Paul Hua <paul.hua.gm@gmail.com>
2934
2935         PR c/84852
2936         * gcc.dg/fixits-pr84852-1.c: Fix filename in dg-regexp.
2937
2938 2018-03-15  Segher Boessenkool  <segher@kernel.crashing.org>
2939
2940         * config/rs6000/rs6000.c (abi_v4_pass_in_fpr): Add back the
2941         TARGET_DOUBLE_FLOAT and TARGET_SINGLE_FLOAT conditions on the DFmode
2942         resp. SFmode cases.
2943
2944 2018-03-15  Tamar Christina  <tamar.christina@arm.com>
2945
2946         PR target/84711
2947         * config/arm/arm.c (arm_can_change_mode_class): Use GET_MODE_UNIT_SIZE
2948         instead of GET_MODE_SIZE when comparing Units.
2949
2950 2018-03-15  Vladimir Mezentsev  <vladimir.mezentsev@oracle.com>
2951
2952         PR target/68256
2953         * varasm.c (hash_section): Return an unchangeble hash value
2954         * config/aarch64/aarch64.c (aarch64_use_blocks_for_constant_p):
2955         Return !aarch64_can_use_per_function_literal_pools_p ().
2956
2957 2018-03-15  Jakub Jelinek  <jakub@redhat.com>
2958
2959         PR target/84860
2960         * optabs.c (emit_conditional_move): Pass address of cmode's copy
2961         rather than address of cmode as last argument to prepare_cmp_insn.
2962
2963 2018-03-15  Julia Koval  <julia.koval@intel.com>
2964
2965         * config/i386/i386.c (F_AVX512VBMI2, F_GFNI, F_VPCLMULQDQ,
2966         F_AVX512VNNI, F_AVX512BITALG): New.
2967
2968 2018-03-14  John David Anglin  <danglin@gcc.gnu.org>
2969
2970         PR target/83451
2971         * config/pa/pa.c (pa_emit_move_sequence):  Always emit secondary reload
2972         insn for floating-point loads and stores.
2973
2974 2018-03-14  Carl Love  <cel@us.ibm.com>
2975
2976         * config/rs6000/rs6000-c.c: Add macro definitions for
2977         ALTIVEC_BUILTIN_VEC_PERMXOR.
2978         * config/rs6000/rs6000.h: Add #define for vec_permxor builtin.
2979         * config/rs6000/rs6000-builtin.def: Add macro expansions for VPERMXOR.
2980         * config/rs6000/altivec.md (altivec_vpermxor): New define expand.
2981         * config/rs6000/rs6000-p8swap.c (rtx_is_swappable_p): Add case
2982         UNSPEC_VPERMXOR.
2983         * config/doc/extend.texi: Add prototypes for vec_permxor.
2984
2985 2018-03-14  David Malcolm  <dmalcolm@redhat.com>
2986
2987         PR c/84852
2988         * diagnostic-show-locus.c (class layout_point): Convert m_line
2989         from int to linenum_type.
2990         (line_span::comparator): Use linenum "compare" function when
2991         comparing line numbers.
2992         (test_line_span): New function.
2993         (layout_range::contains_point): Convert param "row" from int to
2994         linenum_type.
2995         (layout_range::intersects_line_p): Likewise.
2996         (layout::will_show_line_p): Likewise.
2997         (layout::print_source_line): Likewise.
2998         (layout::should_print_annotation_line_p): Likewise.
2999         (layout::print_annotation_line): Likewise.
3000         (layout::print_leading_fixits): Likewise.
3001         (layout::annotation_line_showed_range_p): Likewise.
3002         (struct line_corrections): Likewise for field m_row.
3003         (line_corrections::line_corrections): Likewise for param "row".
3004         (layout::print_trailing_fixits): Likewise.
3005         (layout::get_state_at_point): Likewise.
3006         (layout::get_x_bound_for_row): Likewise.
3007         (layout::print_line): Likewise.
3008         (diagnostic_show_locus): Likewise for locals "last_line" and
3009         "row".
3010         (selftest::diagnostic_show_locus_c_tests): Call test_line_span.
3011         * input.c (selftest::test_linenum_comparisons): New function.
3012         (selftest::input_c_tests): Call it.
3013         * selftest.c (selftest::test_assertions): Test ASSERT_GT,
3014         ASSERT_GT_AT, ASSERT_LT, and ASSERT_LT_AT.
3015         * selftest.h (ASSERT_GT): New macro.
3016         (ASSERT_GT_AT): New macro.
3017         (ASSERT_LT): New macro.
3018         (ASSERT_LT_AT): New macro.
3019
3020 2018-03-14  Segher Boessenkool  <segher@kernel.crashing.org>
3021
3022         PR rtl-optimization/84780
3023         * combine.c (distribute_links): Don't make a link based on pc_rtx.
3024
3025 2018-03-14  Martin Liska  <mliska@suse.cz>
3026
3027         * tree.c (record_node_allocation_statistics): Use
3028         get_stats_node_kind.
3029         (get_stats_node_kind): New function extracted from
3030         record_node_allocation_statistics.
3031         (free_node): Use get_stats_node_kind.
3032
3033 2018-03-14  Richard Biener  <rguenther@suse.de>
3034
3035         * tree-ssa-pre.c (compute_antic_aux): Remove code that asserts
3036         that the value-set of ANTIC_IN doesn't grow.
3037
3038         Revert
3039         * tree-ssa-pre.c (struct bb_bitmap_sets): Add visited_with_visited_succs
3040         member.
3041         (BB_VISITED_WITH_VISITED_SUCCS): New define.
3042         (compute_antic): Initialize BB_VISITED_WITH_VISITED_SUCCS.
3043
3044 2018-03-14  Julia Koval  <julia.koval@intel.com>
3045
3046         * config.gcc (icelake-client, icelake-server): New.
3047         (icelake): Remove.
3048         * config/i386/i386.c (initial_ix86_tune_features): Extend to 64 bit.
3049         (initial_ix86_arch_features): Ditto.
3050         (PTA_SKYLAKE): Add SGX.
3051         (PTA_ICELAKE): Remove.
3052         (PTA_ICELAKE_CLIENT): New.
3053         (PTA_ICELAKE_SERVER): New.
3054         (ix86_option_override_internal): Split up icelake on icelake client and
3055         icelake server.
3056         (get_builtin_code_for_version): Ditto.
3057         (fold_builtin_cpu): Ditto.
3058         * config/i386/driver-i386.c (config/i386/driver-i386.c): Ditto.
3059         * config/i386/i386-c.c (ix86_target_macros_internal): Ditto
3060         * config/i386/i386.h (processor_type): Ditto.
3061         * doc/invoke.texi: Ditto.
3062
3063 2018-03-14  Jakub Jelinek  <jakub@redhat.com>
3064
3065         PR sanitizer/83392
3066         * sanopt.c (maybe_optimize_ubsan_ptr_ifn): Handle also
3067         INTEGER_CST offset, add it together with bitpos / 8 and
3068         sign extend based on POINTER_SIZE.
3069
3070         PR target/84844
3071         Revert
3072         2017-04-20  Uros Bizjak  <ubizjak@gmail.com>
3073
3074         PR target/78090
3075         * config/i386/constraints.md (Yc): New register constraint.
3076         * config/i386/i386.md (*float<SWI48:mode><MODEF:mode>2_mixed):
3077         Use Yc constraint for alternative 2 of operand 0.  Remove
3078         preferred_for_speed attribute.
3079
3080 2018-03-14  Richard Biener  <rguenther@suse.de>
3081
3082         PR tree-optimization/84830
3083         * tree-ssa-pre.c (compute_antic_aux): Intersect the new ANTIC_IN
3084         with the old one to avoid oscillations.
3085
3086 2018-03-13  Vladimir Makarov  <vmakarov@redhat.com>
3087
3088         PR target/83712
3089         * lra-assigns.c (find_all_spills_for): Ignore uninteresting
3090         pseudos.
3091         (assign_by_spills): Return a flag of reload assignment failure.
3092         Do not process the reload assignment failures.  Do not spill other
3093         reload pseudos if they has the same reg class.  Update n if
3094         necessary.
3095         (lra_assign): Add a return arg.  Set up from the result of
3096         assign_by_spills call.
3097         (find_reload_regno_insns, lra_split_hard_reg_for): New functions.
3098         * lra-constraints.c (split_reg): Add a new arg.  Use it instead of
3099         usage_insns if it is not NULL.
3100         (spill_hard_reg_in_range): New function.
3101         (split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
3102         * lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
3103         function prototypes.
3104         (lra_assign): Change prototype.
3105         * lra.c (lra): Add code to deal with fails by splitting hard reg
3106         live ranges.
3107
3108 2018-03-01  Palmer Dabbelt  <palmer@sifive.com>
3109
3110         * config/riscv/riscv.opt (mrelax): New option.
3111         * config/riscv/riscv.c (riscv_file_start): Emit ".option
3112         "norelax" when riscv_mrelax is disabled.
3113         * doc/invoke.texi (RISC-V): Document "-mrelax" and "-mno-relax".
3114
3115 2018-03-13  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
3116
3117         PR target/84743
3118         * config/rs6000/rs6000.c (rs6000_reassociation_width): Disable parallel
3119         reassociation for int modes.
3120
3121 2018-03-13  Richard Sandiford  <richard.sandiford@linaro.org>
3122
3123         * tree-vect-loop-manip.c (vect_maybe_permute_loop_masks):
3124         Reverse the choice between VEC_UNPACK_LO_EXPR and VEC_UNPACK_HI_EXPR
3125         for big-endian.
3126         * config/aarch64/iterators.md (hi_lanes_optab): New int attribute.
3127         * config/aarch64/aarch64-sve.md
3128         (*aarch64_sve_<perm_insn><perm_hilo><mode>): Rename to...
3129         (aarch64_sve_<perm_insn><perm_hilo><mode>): ...this.
3130         (*extend<mode><Vwide>2): Rename to...
3131         (aarch64_sve_extend<mode><Vwide>2): ...this.
3132         (vec_unpack<su>_<perm_hilo>_<mode>): Turn into a define_expand,
3133         renaming the old pattern to...
3134         (aarch64_sve_punpk<perm_hilo>_<mode>): ...this.  Only define
3135         unsigned packs.
3136         (vec_unpack<su>_<perm_hilo>_<SVE_BHSI:mode>): Turn into a
3137         define_expand, renaming the old pattern to...
3138         (aarch64_sve_<su>unpk<perm_hilo>_<SVE_BHSI:mode>): ...this.
3139         (*vec_unpacku_<perm_hilo>_<mode>_no_convert): Delete.
3140         (vec_unpacks_<perm_hilo>_<mode>): Take BYTES_BIG_ENDIAN into
3141         account when deciding which SVE instruction the optab should use.
3142         (vec_unpack<su_optab>_float_<perm_hilo>_vnx4si): Likewise.
3143
3144 2018-03-13  Richard Sandiford  <richard.sandiford@linaro.org>
3145
3146         * config/aarch64/aarch64.md (V4_REGNUM, V8_REGNUM, V12_REGNUM)
3147         (V20_REGNUM, V24_REGNUM, V28_REGNUM, P1_REGNUM, P2_REGNUM, P3_REGNUM)
3148         (P4_REGNUM, P5_REGNUM, P6_REGNUM, P8_REGNUM, P9_REGNUM, P10_REGNUM)
3149         (P11_REGNUM, P12_REGNUM, P13_REGNUM, P14_REGNUM): New define_constants.
3150         (tlsdesc_small_<mode>): Turn a define_expand and use
3151         tlsdesc_small_sve_<mode> for SVE.  Rename original define_insn to...
3152         (tlsdesc_small_advsimd_<mode>): ...this.
3153         (tlsdesc_small_sve_<mode>): New pattern.
3154
3155 2018-03-13  Richard Sandiford  <richard.sandiford@linaro.org>
3156
3157         * config/aarch64/iterators.md (UNSPEC_SMUL_HIGHPART)
3158         (UNSPEC_UMUL_HIGHPART): New constants.
3159         (MUL_HIGHPART): New int iteraor.
3160         (su): Handle UNSPEC_SMUL_HIGHPART and UNSPEC_UMUL_HIGHPART.
3161         * config/aarch64/aarch64-sve.md (<su>mul<mode>3_highpart): New
3162         define_expand.
3163         (*<su>mul<mode>3_highpart): New define_insn.
3164
3165 2018-03-13  Eric Botcazou  <ebotcazou@adacore.com>
3166
3167         PR lto/84805
3168         * ipa-devirt.c (odr_subtypes_equivalent_p): Do not get the ODR type of
3169         incomplete types.
3170
3171 2018-03-13  Martin Liska  <mliska@suse.cz>
3172
3173         PR ipa/84658.
3174         * (sem_item_optimizer::sem_item_optimizer): Initialize new
3175         vector.
3176         (sem_item_optimizer::~sem_item_optimizer): Release it.
3177         (sem_item_optimizer::merge_classes): Register variable aliases.
3178         (sem_item_optimizer::fixup_pt_set): New function.
3179         (sem_item_optimizer::fixup_points_to_sets): Likewise.
3180         * ipa-icf.h: Declare new variables and functions.
3181
3182 2018-03-13  Jakub Jelinek  <jakub@redhat.com>
3183
3184         PR middle-end/84834
3185         * match.pd ((A & C) != 0 ? D : 0): Use INTEGER_CST@2 instead of
3186         integer_pow2p@2 and test integer_pow2p in condition.
3187         (A < 0 ? C : 0): Similarly for @1.
3188
3189         PR middle-end/84831
3190         * stmt.c (parse_output_constraint): If the CONSTRAINT_LEN (*p, p)
3191         characters starting at p contain '\0' character, don't look beyond
3192         that.
3193
3194         PR target/84827
3195         * config/i386/i386.md (round<mode>2): For 387 fancy math, disable
3196         pattern if -ftrapping-math -fno-fp-int-builtin-inexact.
3197
3198         PR target/84828
3199         * reg-stack.c (change_stack): Change update_end var from int to
3200         rtx_insn *, if non-NULL don't update just BB_END (current_block), but
3201         also call set_block_for_insn on the newly added insns and rescan.
3202
3203         PR target/84786
3204         * config/i386/sse.md (sse2_loadhpd): Use Yv constraint rather than v
3205         on the last operand.
3206
3207         PR c++/84704
3208         * tree.c (stabilize_reference_1): Return save_expr (e) for
3209         STATEMENT_LIST even if it doesn't have side-effects.
3210
3211 2018-03-12  Jonathan Wakely  <jwakely@redhat.com>
3212
3213         * doc/invoke.texi (-mclflushopt): Fix spelling of option.
3214
3215 2018-03-12  Renlin Li  <renlin.li@arm.com>
3216
3217         * config/aarch64/aarch64.md (movhf_aarch64): Fix mode argument to
3218         aarch64_output_scalar_simd_mov_immediate.
3219
3220 2018-03-12  Martin Sebor  <msebor@redhat.com>
3221
3222         PR tree-optimization/83456
3223         * gimple-fold.c (gimple_fold_builtin_memory_op): Avoid warning
3224         for perfectly overlapping calls to memcpy.
3225         (gimple_fold_builtin_memory_chk): Same.
3226         (gimple_fold_builtin_strcpy): Handle no-warning.
3227         (gimple_fold_builtin_stxcpy_chk): Same.
3228         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Handle no-warning.
3229
3230 2018-03-12  Segher Boessenkool  <segher@kernel.crashing.org>
3231
3232         * config/rs6000/rs6000.c (abi_v4_pass_in_fpr): Add bool "named"
3233         parameter.  Use it for SFmode.
3234         (rs6000_function_arg_advance_1): Adjust.
3235         (rs6000_function_arg): Adjust.
3236         (rs6000_gimplify_va_arg): Pass false for that new parameter.
3237
3238 2018-03-12  Segher Boessenkool  <segher@kernel.crashing.org>
3239
3240         PR rtl-optimization/84169
3241         PR rtl-optimization/84780
3242         * combine.c (can_combine_p): Check for a 2-insn combination whether
3243         the destination register is used between the two insns, too.
3244
3245 2018-03-12  Richard Biener  <rguenther@suse.de>
3246
3247         PR tree-optimization/84803
3248         * tree-if-conv.c (ifcvt_memrefs_wont_trap): Don't do anything
3249         for refs DR analysis didn't process.
3250
3251 2018-03-12  Richard Biener  <rguenther@suse.de>
3252
3253         PR tree-optimization/84777
3254         * tree-ssa-loop-ch.c (should_duplicate_loop_header_p): For
3255         force-vectorize loops ignore whether we are optimizing for size.
3256
3257 2018-03-12  Chung-Ju Wu  <jasonwucj@gmail.com>
3258
3259         * config/nds32/nds32.c (nds32_md_asm_adjust): New function.
3260         (TARGET_MD_ASM_ADJUST): Define.
3261
3262 2018-03-12  Monk Chiang  <sh.chiang04@gmail.com>
3263             Kito Cheng  <kito.cheng@gmail.com>
3264             Chung-Ju Wu  <jasonwucj@gmail.com>
3265
3266         * config/nds32/nds32.c (nds32_compute_stack_frame,
3267         nds32_emit_stack_push_multiple, nds32_emit_stack_pop_multiple,
3268         nds32_emit_stack_v3push, nds32_emit_stack_v3pop,
3269         nds32_emit_adjust_frame, nds32_expand_prologue, nds32_expand_epilogue,
3270         nds32_expand_prologue_v3push, nds32_expand_epilogue_v3pop): Refine.
3271         * config/nds32/nds32.h (NDS32_FIRST_CALLEE_SAVE_GPR_REGNUM,
3272         NDS32_LAST_CALLEE_SAVE_GPR_REGNUM, NDS32_V3PUSH_AVAILABLE_P): New.
3273         * config/nds32/nds32.md (prologue, epilogue): Use macro
3274         NDS32_V3PUSH_AVAILABLE_P to do checking.
3275
3276 2018-03-11  Jakub Jelinek  <jakub@redhat.com>
3277
3278         PR debug/58150
3279         * dwarf2out.c (gen_enumeration_type_die): Don't guard adding
3280         DW_AT_declaration for ENUM_IS_OPAQUE on -gdwarf-4 or -gno-strict-dwarf,
3281         but on TYPE_SIZE.  Don't do anything for ENUM_IS_OPAQUE if not creating
3282         a new die.  Don't set TREE_ASM_WRITTEN if ENUM_IS_OPAQUE.  Guard
3283         addition of most attributes on !orig_type_die or the attribute not
3284         being present already.  Assert TYPE_VALUES is NULL for ENUM_IS_OPAQUE.
3285
3286 2018-03-11  Kito Cheng  <kito.cheng@gmail.com>
3287             Chung-Ju Wu  <jasonwucj@gmail.com>
3288
3289         * config/nds32/nds32.c (nds32_cpu_cpp_builtins): Modify to define
3290         __NDS32_VH__ macro.
3291         * config/nds32/nds32.opt (mvh): New option.
3292
3293 2018-03-11  Kito Cheng  <kito.cheng@gmail.com>
3294             Chung-Ju Wu  <jasonwucj@gmail.com>
3295
3296         * config/nds32/nds32-protos.h (nds32_cpu_cpp_builtins): Declare
3297         function.
3298         * config/nds32/nds32.c (nds32_cpu_cpp_builtins): New function.
3299         * config/nds32/nds32.h (TARGET_CPU_CPP_BUILTINS): Modify its
3300         definition.
3301
3302 2018-03-11  Kito Cheng  <kito.cheng@gmail.com>
3303             Chung-Ju Wu  <jasonwucj@gmail.com>
3304
3305         * config/nds32/nds32-memory-manipulation.c (nds32_expand_strlen): New
3306         function.
3307         * config/nds32/nds32-multiple.md (strlensi): New pattern.
3308         * config/nds32/nds32-protos.h (nds32_expand_strlen): Declare function.
3309
3310 2018-03-11  Monk Chiang  <sh.chiang04@gmail.com>
3311             Kito Cheng  <kito.cheng@gmail.com>
3312             Chung-Ju Wu  <jasonwucj@gmail.com>
3313
3314         * config/nds32/constants.md (unspec_element): Add UNSPEC_FFB,
3315         UNSPEC_FFMISM and UNSPEC_FLMISM.
3316         * config/nds32/nds32-intrinsic.c (bdesc_2arg): Add builtin description
3317         for ffb, ffmism and flmism.
3318         * config/nds32/nds32-intrinsic.md (unspec_ffb): Define new pattern.
3319         (unspec_ffmism): Ditto.
3320         (unspec_flmism): Ditto.
3321         (nds32_expand_builtin_impl): Check if string extension is available.
3322         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_FFB,
3323         NDS32_BUILTIN_FFMISM and NDS32_BUILTIN_FLMISM.
3324
3325 2018-03-10  Vladimir Makarov  <vmakarov@redhat.com>
3326
3327         Reverting patch:
3328         2018-03-09  Vladimir Makarov  <vmakarov@redhat.com>
3329
3330         PR target/83712
3331         * lra-assigns.c (assign_by_spills): Return a flag of reload
3332         assignment failure.  Do not process the reload assignment
3333         failures.  Do not spill other reload pseudos if they has the same
3334         reg class.
3335         (lra_assign): Add a return arg.  Set up from the result of
3336         assign_by_spills call.
3337         (find_reload_regno_insns, lra_split_hard_reg_for): New functions.
3338         * lra-constraints.c (split_reg): Add a new arg.  Use it instead of
3339         usage_insns if it is not NULL.
3340         (spill_hard_reg_in_range): New function.
3341         (split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
3342         * lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
3343         function prototypes.
3344         (lra_assign): Change prototype.
3345         * lra.c (lra): Add code to deal with fails by splitting hard reg
3346         live ranges.
3347
3348 2018-03-10  H.J. Lu  <hongjiu.lu@intel.com>
3349
3350         PR target/84807
3351         * config/i386/i386.opt: Replace Enforcment with Enforcement.
3352
3353 2018-03-10  Alexandre Oliva  <aoliva@redhat.com>
3354
3355         PR debug/84620
3356         * dwarf2out.h (dw_val_class): Add dw_val_class_symview.
3357         (dw_val_node): Add val_symbolic_view.
3358         * dwarf2out.c (dw_line_info_table): Add symviews_since_reset.
3359         (symview_upper_bound): New.
3360         (new_line_info_table): Initialize symviews_since_reset.
3361         (dwarf2out_source_line): Count symviews_since_reset and set
3362         symview_upper_bound.
3363         (dw_val_equal_p): Handle symview.
3364         (add_AT_symview): New.
3365         (print_dw_val): Handle symview.
3366         (attr_checksum, attr_checksum_ordered): Likewise.
3367         (same_dw_val_p, size_of_die): Likewise.
3368         (value_format, output_die): Likewise.
3369         (add_high_low_attributes): Use add_AT_symview for entry_view.
3370         (dwarf2out_finish): Reset symview_upper_bound, clear
3371         zero_view_p.
3372
3373 2018-03-09  Peter Bergner  <bergner@vnet.ibm.com>
3374
3375         PR target/83969
3376         * config/rs6000/rs6000.c (rs6000_offsettable_memref_p): New prototype.
3377         Add strict argument and use it.
3378         (rs6000_split_multireg_move): Update for new strict argument.
3379         (mem_operand_gpr): Disallow all non-offsettable addresses.
3380         * config/rs6000/rs6000.md (*movdi_internal64): Use YZ constraint.
3381
3382 2018-03-09  Jakub Jelinek  <jakub@redhat.com>
3383
3384         PR target/84772
3385         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Mark va_arg_tmp
3386         temporary TREE_ADDRESSABLE before gimplification of BUILT_IN_MEMCPY.
3387         * config/powerpcspe/powerpcspe.c (rs6000_gimplify_va_arg): Likewise.
3388
3389         PR c++/84767
3390         * tree-inline.c (copy_tree_body_r): For INDIRECT_REF of a remapped
3391         decl, use remap_type if we want to use the type.
3392
3393 2018-03-09  Martin Sebor  <msebor@redhat.com>
3394
3395         PR tree-optimization/84526
3396         * gimple-ssa-warn-restrict.c (builtin_memref::set_base_and_offset):
3397         Remove dead code.
3398         (builtin_access::generic_overlap): Be prepared to handle non-array
3399         base objects.
3400
3401 2018-03-09  Alexandre Oliva  <aoliva@redhat.com>
3402
3403         PR rtl-optimization/84682
3404         * lra-constraints.c (process_address_1): Check is_address flag
3405         for address constraints.
3406         (process_alt_operands): Likewise.
3407         * lra.c (lra_set_insn_recog_data): Pass asm operand locs to
3408         preprocess_constraints.
3409         * recog.h (preprocess_constraints): Add oploc parameter.
3410         Adjust callers.
3411         * recog.c (preprocess_constraints): Test address_operand for
3412         CT_ADDRESS constraints.
3413
3414 2018-03-09  Vladimir Makarov  <vmakarov@redhat.com>
3415
3416         PR target/83712
3417         * lra-assigns.c (assign_by_spills): Return a flag of reload
3418         assignment failure.  Do not process the reload assignment
3419         failures.  Do not spill other reload pseudos if they has the same
3420         reg class.
3421         (lra_assign): Add a return arg.  Set up from the result of
3422         assign_by_spills call.
3423         (find_reload_regno_insns, lra_split_hard_reg_for): New functions.
3424         * lra-constraints.c (split_reg): Add a new arg.  Use it instead of
3425         usage_insns if it is not NULL.
3426         (spill_hard_reg_in_range): New function.
3427         (split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
3428         * lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
3429         function prototypes.
3430         (lra_assign): Change prototype.
3431         * lra.c (lra): Add code to deal with fails by splitting hard reg
3432         live ranges.
3433
3434 2018-03-09  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
3435
3436         PR target/83193
3437         * common/config/arm/arm-common.c (arm_parse_arch_option_name):
3438         Accept complain bool parameter.  Only emit errors if it is true.
3439         (arm_parse_cpu_option_name): Likewise.
3440         (arm_target_thumb_only): Adjust callers of the above.
3441         * config/arm/arm-protos.h (arm_parse_cpu_option_name): Adjust
3442         prototype to take a default true bool parameter.
3443         (arm_parse_arch_option_name): Likewise.
3444
3445 2018-03-09  David Malcolm  <dmalcolm@redhat.com>
3446             Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
3447
3448         PR jit/64089
3449         PR jit/84288
3450         * Makefile.in (LD_VERSION_SCRIPT_OPTION, LD_SONAME_OPTION): New.
3451         * configure: Regenerate.
3452         * configure.ac ("linker --version-script option"): New.
3453         ("linker soname option"): New.
3454
3455 2018-03-09  Richard Biener  <rguenther@suse.de>
3456
3457         PR tree-optimization/84775
3458         * tree-if-conv.c (add_bb_predicate_gimplified_stmts): Delink
3459         immediate uses of predicate stmts and mark them modified.
3460
3461         Revert
3462         PR tree-optimization/84178
3463         * tree-if-conv.c (combine_blocks): Move insert_gimplified_predicates
3464         to caller.
3465         (version_loop_for_if_conversion): Delay update_ssa call.
3466         (tree_if_conversion): Delay update_ssa until after predicate
3467         insertion.
3468
3469 2018-03-09  Eric Botcazou  <ebotcazou@adacore.com>
3470
3471         PR target/84763
3472         * config/i386/winnt.c (i386_pe_seh_cold_init): Use small pre-allocation
3473         when the function accesses prior frames.
3474
3475 2018-03-08  Jakub Jelinek  <jakub@redhat.com>
3476
3477         PR debug/84456
3478         * dwarf2out.c (dw_loc_list): If list && loc_list->first->next, call
3479         gen_llsym, otherwise call maybe_gen_llsym.
3480
3481         PR inline-asm/84742
3482         * recog.c (asm_operand_ok): Return 0 if multi-character constraint
3483         has ',' character inside of it.
3484
3485 2018-03-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
3486
3487         PR target/84748
3488         * config/aarch64/aarch64.md (*compare_cstore<mode>_insn): Mark pattern
3489         as clobbering CC_REGNUM.
3490
3491 2018-03-08  Richard Biener  <rguenther@suse.de>
3492
3493         PR middle-end/84552
3494         * tree-scalar-evolution.c: Include tree-into-ssa.h.
3495         (follow_copies_to_constant): Do not follow SSA names registered
3496         for update.
3497
3498 2018-03-08  Richard Biener  <rguenther@suse.de>
3499
3500         PR tree-optimization/84178
3501         * tree-if-conv.c (combine_blocks): Move insert_gimplified_predicates
3502         to caller.
3503         (version_loop_for_if_conversion): Delay update_ssa call.
3504         (tree_if_conversion): Delay update_ssa until after predicate
3505         insertion.
3506
3507 2018-03-08  David Malcolm  <dmalcolm@redhat.com>
3508
3509         PR tree-optimization/84178
3510         * tree-if-conv.c (release_bb_predicate): Remove the
3511         the assertion that the stmts have NULL use_ops.
3512         Discard the statements, asserting that they haven't
3513         yet been added to a BB.
3514
3515 2018-03-08  Richard Biener  <rguenther@suse.de>
3516
3517         PR tree-optimization/84746
3518         * tree-ssa-pre.c (find_leader_in_sets): Deal with SET1 being NULL.
3519         (phi_translate): Pass in destination ANTIC_OUT set.
3520         (phi_translate_1): Likewise.  For a simplified result lookup
3521         a leader in ANTIC_OUT and AVAIL_OUT, not the ANTIC_IN sets.
3522         (phi_translate_set): Adjust.
3523         (do_pre_regular_insertion): Likewise.
3524         (do_pre_partial_partial_insertion): Likewise.
3525
3526 2018-03-08  Martin Liska  <mliska@suse.cz>
3527
3528         PR gcov-profile/84735
3529         * doc/gcov.texi: Document usage of profile files.
3530         * gcov-io.h: Document changes in the format.
3531
3532 2018-03-08  Alexandre Oliva  <aoliva@redhat.com>
3533
3534         PR debug/84404
3535         PR debug/84408
3536         * dwarf2out.c (struct dw_line_info_table): Update comments for
3537         view == -1.
3538         (FORCE_RESET_NEXT_VIEW): New.
3539         (FORCE_RESETTING_VIEW_P): New.
3540         (RESETTING_VIEW_P): Check for -1 too.
3541         (ZERO_VIEW_P): Likewise.
3542         (new_line_info_table): Force-reset next view.
3543         (dwarf2out_begin_function): Likewise.
3544         (dwarf2out_source_line): Simplify zero_view_p initialization.
3545         Test FORCE_RESETTING_VIEW_P and RESETTING_VIEW_P instead of
3546         view directly.  Omit view when omitting .loc at line 0.
3547
3548 2018-03-08  Jakub Jelinek  <jakub@redhat.com>
3549
3550         PR tree-optimization/84740
3551         * tree-switch-conversion.c (process_switch): Call build_constructors
3552         only if info.phi_count is non-zero.
3553
3554         PR tree-optimization/84739
3555         * tree-tailcall.c (find_tail_calls): Check call arguments against
3556         DECL_ARGUMENTS (current_function_decl) rather than
3557         DECL_ARGUMENTS (func) when checking for tail recursion.
3558
3559 2018-03-07  Jakub Jelinek  <jakub@redhat.com>
3560
3561         * doc/contrib.texi: Add entries for Martin Liska, David Malcolm,
3562         Marek Polacek, extend Vladimir Makarov's, Jonathan Wakely's and
3563         Volker Reichelt's entry and add entries for people that perform
3564         GCC fuzzy testing and report numerous bugs.
3565
3566 2018-03-07  Segher Boessenkool  <segher@kernel.crashing.org>
3567
3568         PR target/82411
3569         * config/rs6000/rs6000.c (rs6000_elf_in_small_data_p): Don't put
3570         readonly data in sdata, if that is disabled.
3571         * config/rs6000/sysv4.opt (mreadonly-in-sdata): New option.
3572         * doc/invoke.texi (RS/6000 and PowerPC Options): Document
3573         -mreadonly-in-sdata option.
3574
3575 2018-03-07  Martin Sebor  <msebor@redhat.com>
3576
3577         PR tree-optimization/84468
3578         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Consider successor
3579         basic block when looking for nul assignment.
3580
3581 2018-03-07  Eric Botcazou  <ebotcazou@adacore.com>
3582
3583         PR target/84277
3584         * except.h (output_function_exception_table): Adjust prototype.
3585         * except.c (output_function_exception_table): Remove FNNAME parameter
3586         and add SECTION parameter.  Ouput one part of the table at a time.
3587         * final.c (final_scan_insn_1) <NOTE_INSN_SWITCH_TEXT_SECTIONS>: Output
3588         the first part of the exception table and emit unwind directives.
3589         * config/i386/i386-protos.h (i386_pe_end_cold_function): Declare.
3590         (i386_pe_seh_cold_init): Likewise.
3591         * config/i386/cygming.h (ASM_DECLARE_COLD_FUNCTION_NAME): New macro.
3592         (ASM_DECLARE_COLD_FUNCTION_SIZE): Likewise.
3593         * config/i386/i386.c (x86_expand_epilogue): Fix wording in comment.
3594         (ix86_output_call_insn): Emit a nop in one more case for SEH.
3595         * config/i386/winnt.c: Include except.h.
3596         (struct seh_frame_state): Add reg_offset, after_prologue and
3597         in_cold_section fields.
3598         (i386_pe_seh_end_prologue): Set seh->after_prologue.
3599         (i386_pe_seh_cold_init): New function.
3600         (i386_pe_seh_fini): Add COLD parameter and bail out if it is not equal
3601         to seh->in_cold_section.
3602         (seh_emit_push): Record the offset of the push.
3603         (seh_emit_save): Record the offet of the save.
3604         (i386_pe_seh_unwind_emit): Deal with NOTE_INSN_SWITCH_TEXT_SECTIONS.
3605         Test seh->after_prologue to disregard the epilogue.
3606         (i386_pe_end_function): Pass FALSE to i386_pe_seh_fini.
3607         (i386_pe_end_cold_function): New function.
3608
3609 2018-03-07  Jakub Jelinek  <jakub@redhat.com>
3610
3611         PR fortran/84565
3612         * config/aarch64/predicates.md (aarch64_simd_reg_or_zero): Use
3613         aarch64_simd_or_scalar_imm_zero rather than aarch64_simd_imm_zero.
3614
3615         PR c++/84704
3616         * gimple-expr.c (create_tmp_var_raw): Set DECL_NAMELESS flag
3617         on tmp_var.
3618         * tree-pretty-print.c (dump_decl_name): For TDF_COMPARE_DEBUG,
3619         don't print names of DECL_NAMELESS DECL_IGNORED_P decls.
3620
3621         PR middle-end/84723
3622         * multiple_target.c: Include tree-inline.h and intl.h.
3623         (expand_target_clones): Diagnose and fail if node->definition and
3624         !tree_versionable_function_p (node->decl).
3625
3626 2018-03-06  John David Anglin  <danglin@gcc.gnu.org>
3627
3628         * config/pa/pa.h (ASM_GENERATE_INTERNAL_LABEL): Revise to use
3629         sprint_ul.
3630         (ASM_OUTPUT_ADDR_VEC_ELT): Revise for above change.
3631         (ASM_OUTPUT_ADDR_DIFF_ELT): Likewise.
3632         * config/pa/pa64-hpux.h (ASM_GENERATE_INTERNAL_LABEL): Revise as above.
3633
3634 2018-03-06  Jakub Jelinek  <jakub@redhat.com>
3635
3636         PR target/84710
3637         * combine.c (try_combine): Use reg_or_subregno instead of handling
3638         just paradoxical SUBREGs and REGs.
3639
3640 2018-03-06  Claudiu Zissulescu  <claziss@synopsys.com>
3641
3642          * config/arc/arc.c (arc_finalize_pic): Remove function.
3643          (arc_must_save_register): We use single base PIC register, remove
3644          checks to save/restore the PIC register.
3645          (arc_expand_prologue): Likewise.
3646          * config/arc/arc-protos.h (arc_set_default_type_attributes):
3647          Remove.
3648          (arc_verify_short): Likewise.
3649          (arc_attr_type): Likewise.
3650          * config/arc/arc.c (arc_set_default_type_attributes): Remove.
3651          (walk_stores): Likewise.
3652          (arc_address_cost): Make it static.
3653          (arc_verify_short): Likewise.
3654          (branch_dest): Likewise.
3655          (arc_attr_type): Likewise.
3656          * config/arc/arc.c (TARGET_ADJUST_INSN_LENGTH): Remove.
3657          (TARGET_INSN_LENGTH_PARAMETERS): Likewise.
3658          (arc_final_prescan_insn): Remove inserting the nops due to
3659          hardware hazards.  It is done in reorg step.
3660          (insn_length_variant_t): Remove.
3661          (insn_length_parameters_t): Likewise.
3662          (arc_insn_length_parameters): Likewise.
3663          (arc_get_insn_variants): Likewise.
3664          * config/arc/arc.h (TARGET_UPSIZE_DBR): Remove.
3665
3666 2018-03-06  Jakub Jelinek  <jakub@redhat.com>
3667
3668         PR inline-asm/84683
3669         * reg-stack.c (move_for_stack_reg): If any_malformed_asm, avoid
3670         assertion failure.
3671
3672         PR tree-optimization/84687
3673         * omp-simd-clone.c (simd_clone_create): Clear DECL_BUILT_IN_CLASS
3674         on new_node->decl.
3675         * match.pd (pow(C,x)*expN(y) -> expN(logN(C)*x+y)): New optimization.
3676
3677 2018-03-05  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
3678
3679         * config/rs6000/rs6000-builtin.def (rs6000_speculation_barrier):
3680         Rename to ppc_speculation_barrier.
3681         * config/rs6000/rs6000.c (rs6000_init_builtins): Rename builtin to
3682         __builtin_ppc_speculation_barrier.
3683
3684 2018-03-05  Jakub Jelinek  <jakub@redhat.com>
3685
3686         PR target/84700
3687         * combine.c (combine_simplify_rtx): Don't try to simplify if
3688         if_then_else_cond returned non-NULL, but either true_rtx or false_rtx
3689         are equal to x.
3690
3691 2018-03-05  Segher Boessenkool  <segher@kernel.crashing.org>
3692
3693         * config/rs6000/rs6000.c (rs6000_loop_align): Don't align tiny loops
3694         to 32 bytes when compiling for POWER9.
3695
3696 2018-03-05  Jakub Jelinek  <jakub@redhat.com>
3697
3698         PR target/84564
3699         * config/i386/i386.c (ix86_function_ok_for_sibcall): Check for
3700         regparm >= 3 with no arg reg available also for calls with
3701         flag_force_indirect_call.  Pass decl to ix86_function_regparm.
3702
3703         PR target/84524
3704         * config/i386/sse.md (*<code><mode>3): Replace <mask_prefix3> with
3705         orig,vex.
3706         (*<plusminus_insn><mode>3): Likewise.  Remove <mask_operand3> uses.
3707
3708 2018-03-05  Peter Bergner  <bergner@vnet.ibm.com>
3709
3710         PR target/84264
3711         * config/rs6000/vector.md (mov<mode>): Disallow altivec memory operands.
3712
3713 2018-03-05  Richard Biener  <rguenther@suse.de>
3714
3715         PR tree-optimization/84486
3716         * tree-ssa-pre.c (create_expression_by_pieces): Remove dead code.
3717         When inserting a __builtin_assume_aligned call set the LHS
3718         SSA name alignment info accordingly.
3719
3720 2018-03-05  Wilco Dijkstra  <wdijkstr@arm.com>
3721
3722         PR tree-optimization/84114
3723         * config/aarch64/aarch64.c (aarch64_reassociation_width)
3724         Avoid reassociation of FLOAT_MODE addition.
3725
3726 2018-03-05  Olga Makhotina  <olga.makhotina@intel.com>
3727
3728         * common/config/i386/i386-common.c (OPTION_MASK_ISA_PCONFIG_SET,
3729         OPTION_MASK_ISA_PCONFIG_UNSET, OPTION_MASK_ISA_WBNOINVD_SET,
3730         OPTION_MASK_ISA_WBNOINVD_UNSET): New definitions.
3731         (ix86_handle_option): Handle -mpconfig and -mwbnoinvd.
3732         * config.gcc (pconfigintrin.h, wbnoinvdintrin.h) : Add headers.
3733         * config/i386/cpuid.h (bit_PCONFIG, bit_WBNOINVD): New.
3734         * config/i386/driver-i386.c (host_detect_local_cpu): Detect -mpconfig
3735         and -mwbnoinvd.
3736         * config/i386/i386-builtin.def (__builtin_ia32_wbnoinvd,
3737         __builtin_ia32_wbinvd): New builtins.
3738         (SPECIAL_ARGS2): New.
3739         * config/i386/i386-c.c (__WBNOINVD__, __PCONFIG__): New.
3740         (SPECIAL_ARGS2): New.
3741         * config/i386/i386.c (ix86_target_string): Add -mpconfig and -mwbnoinvd.
3742         (ix86_valid_target_attribute_inner_p): Ditto.
3743         (ix86_init_mmx_sse_builtins): Add special_args2.
3744         * config/i386/i386.h (TARGET_PCONFIG, TARGET_PCONFIG_P, TARGET_WBNOINVD,
3745         TARGET_WBNOINVD_P): New.
3746         * config/i386/i386.md (UNSPECV_WBINVD, UNSPECV_WBNOINVD): New.
3747         (define_insn "wbinvd", define_insn "wbnoinvd"): New.
3748         * config/i386/i386.opt: Add -mpconfig and -mwbnoinvd.
3749         * config/i386/immintrin.h (_wbinvd): New intrinsic.
3750         * config/i386/pconfigintrin.h: New file.
3751         * config/i386/wbnoinvdintrin.h: Ditto.
3752         * config/i386/x86intrin.h: Add headers pconfigintrin.h and wbnoinvdintrin.h.
3753         * doc/invoke.texi (-mpconfig, -mwbnoinvd): New.
3754
3755 2018-03-05  Richard Biener  <rguenther@suse.de>
3756
3757         PR tree-optimization/84670
3758         * tree-ssa-pre.c (struct bb_bitmap_sets): Add visited_with_visited_succs
3759         member.
3760         (BB_VISITED_WITH_VISITED_SUCCS): New define.
3761         (compute_antic): Initialize BB_VISITED_WITH_VISITED_SUCCS.
3762         (compute_antic_aux): Only assert the number of values in ANTIC_IN
3763         doesn't grow if all successors (recursively) were visited at least
3764         once.
3765
3766 2018-03-05  Richard Biener  <rguenther@suse.de>
3767
3768         PR tree-optimization/84650
3769         * tree-ssa-loop-im.c (pass_lim::execute): Reset the SCEV cache
3770         if executed in the loop pipeline.
3771
3772 2018-03-05  Sandra Loosemore  <sandra@codesourcery.com>
3773
3774         * doc/configfiles.texi (Configuration Files): Move info about
3775         conditionalizing $target-protos.h to...
3776         * doc/sourcebuild.texi (Back End): Here.  Explain how $target.h
3777         differs from $target-protos.h.
3778
3779 2018-03-05  Kito Cheng  <kito.cheng@gmail.com>
3780             Chung-Ju Wu  <jasonwucj@gmail.com>
3781
3782         * config/nds32/nds32-protos.h (nds32_expand_setmem): Declare.
3783         * config/nds32/nds32-multiple.md (setmemsi): Define.
3784         * config/nds32/nds32-memory-manipulation.c
3785         (nds32_gen_dup_4_byte_to_word_value): New.
3786         (emit_setmem_word_loop): New.
3787         (emit_setmem_byte_loop): New.
3788         (nds32_expand_setmem_loop): New.
3789         (nds32_expand_setmem_loop_v3m): New.
3790         (nds32_expand_setmem_unroll): New.
3791         (nds32_expand_setmem): New.
3792
3793 2018-03-04  Kito Cheng  <kito.cheng@gmail.com>
3794             Chung-Ju Wu  <jasonwucj@gmail.com>
3795
3796         * config/nds32/nds32-memory-manipulation.c
3797         (nds32_emit_load_store): New.
3798         (nds32_emit_post_inc_load_store): New.
3799         (nds32_emit_mem_move): New.
3800         (nds32_emit_mem_move_block): New.
3801         (nds32_expand_movmemsi_loop_unknown_size): New.
3802         (nds32_expand_movmemsi_loop_known_size): New.
3803         (nds32_expand_movmemsi_loop): New.
3804         (nds32_expand_movmemsi_unroll): New.
3805         (nds32_expand_movmemqi): Rename ...
3806         (nds32_expand_movmemsi): ... to this.
3807         * config/nds32/nds32-multiple.md (movmemqi): Rename ...
3808         (movmemsi): ... to this.
3809         * config/nds32/nds32-protos.h (nds32_expand_movmemqi): Rename ...
3810         (nds32_expand_movmemsi): ... to this.
3811
3812 2018-03-04  Kito Cheng  <kito.cheng@gmail.com>
3813             Monk Chiang  <sh.chiang04@gmail.com>
3814             Chung-Ju Wu  <jasonwucj@gmail.com>
3815
3816         * config/nds32/nds32-protos.h
3817         (nds32_expand_load_multiple): New arguments.
3818         (nds32_expand_store_multiple): Ditto.
3819         (nds32_valid_multiple_load_store): Rename ...
3820         (nds32_valid_multiple_load_store_p): ... to this.
3821         * config/nds32/nds32-memory-manipulation.c
3822         (nds32_expand_load_multiple): Refine implementation.
3823         (nds32_expand_store_multiple): Ditto.
3824         * config/nds32/nds32-multiple.md
3825         (load_multiple): Update nds32_expand_load_multiple interface.
3826         (store_multiple): Update nds32_expand_store_multiple interface.
3827         * config/nds32/nds32-predicates.c
3828         (nds32_valid_multiple_load_store): Rename ...
3829         (nds32_valid_multiple_load_store_p): ... to this and refine
3830         implementation.
3831         * config/nds32/predicates.md
3832         (nds32_load_multiple_and_update_address_operation): New predicate.
3833         (nds32_store_multiple_and_update_address_operation): New predicate.
3834
3835 2018-03-04  Kito Cheng  <kito.cheng@gmail.com>
3836             Chung-Ju Wu  <jasonwucj@gmail.com>
3837
3838         * config/nds32/nds32.md (type): Add load_multiple and store_multiple.
3839         (combo): New attribute.
3840         * config/nds32/nds32-multiple.md: Refine patterns with new attributes.
3841
3842 2018-03-03  Chung-Ju Wu  <jasonwucj@gmail.com>
3843
3844         * config/nds32/nds32.opt: Change -mcmodel= default value.
3845
3846 2018-03-03  Kito Cheng  <kito.cheng@gmail.com>
3847             Monk Chiang  <sh.chiang04@gmail.com>
3848             Chung-Ju Wu  <jasonwucj@gmail.com>
3849
3850         * config/nds32/constants.md (unspec_element): New enum.
3851         * config/nds32/constraints.md (Umw): New constraint.
3852         * config/nds32/nds32-intrinsic.c: Add more builtin functions.
3853         * config/nds32/nds32-intrinsic.md: Likewise.
3854         * config/nds32/nds32-md-auxiliary.c (nds32_regno_to_enable4): New.
3855         (nds32_valid_smw_lwm_base_p): New.
3856         (nds32_output_smw_single_word): New.
3857         (nds32_output_lmw_single_word): New.
3858         (nds32_expand_unaligned_load): New.
3859         (nds32_expand_unaligned_store): New.
3860         * config/nds32/nds32-protos.h (nds32_valid_smw_lwm_base_p): Declare.
3861         (nds32_output_smw_single_word): Declare.
3862         (nds32_output_lmw_single_word): Declare.
3863         (nds32_expand_unaligned_load): Declare.
3864         (nds32_expand_unaligned_store): Declare.
3865         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_UALOAD_HW,
3866         NDS32_BUILTIN_UALOAD_W, NDS32_BUILTIN_UALOAD_DW,
3867         NDS32_BUILTIN_UASTORE_HW, NDS32_BUILTIN_UASTORE_W,
3868         NDS32_BUILTIN_UASTORE_DW.
3869         * config/nds32/predicates.md (nds32_lmw_smw_base_operand): New
3870         predicate.
3871
3872 2018-03-03  Monk Chiang  <sh.chiang04@gmail.com>
3873             Kito Cheng  <kito.cheng@gmail.com>
3874             Chung-Ju Wu  <jasonwucj@gmail.com>
3875
3876         * config/nds32/nds32-intrinsic.c
3877         (nds32_expand_builtin_null_ftype_reg): Delete.
3878         (nds32_expand_builtin_reg_ftype_imm): Ditto.
3879         (nds32_expand_builtin_null_ftype_reg_imm): Ditto.
3880         (nds32_read_argument): New.
3881         (nds32_legitimize_target): Ditto.
3882         (nds32_legitimize_argument): Ditto.
3883         (nds32_check_constant_argument): Ditto.
3884         (nds32_expand_unop_builtin): Ditto.
3885         (nds32_expand_unopimm_builtin): Ditto.
3886         (nds32_expand_binop_builtin): Ditto.
3887         (nds32_builtin_decl_impl): Ditto.
3888         (builtin_description): Ditto.
3889         (nds32_expand_builtin_impl): Rewrite with new infrastructure.
3890         (nds32_init_builtins_impl): Ditto.
3891         * config/nds32/nds32.c (TARGET_BUILTIN_DECL): Define.
3892         (nds32_builtin_decl): New.
3893         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_COUNT.
3894         * config/nds32/nds32-protos.h (nds32_builtin_decl_impl): Declare.
3895
3896 2018-03-02  Jeff Law  <law@redhat.com>
3897
3898         * reorg.c (stop_search_p): Handle DEBUG_INSN.
3899         (redundant_insn, fill_simple_delay_slots): Likewise.
3900         (fill_slots_from_thread): Likewise.
3901         * resource.c (mark_referenced_resources): Likewise.
3902         (mark_set_resources, find_dead_or_set_registers): Likewise.
3903
3904 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
3905
3906         * substring-locations.h (format_warning_va): Formatting fix for
3907         ATTRIBUTE_GCC_DIAG.
3908         (format_warning_at_substring): Fix up ATTRIBUTE_GCC_DIAG second
3909         argument.
3910         (format_warning_n_va, format_warning_at_substring_n): New prototypes.
3911         * substring-locations.c: Include intl.h.
3912         (format_warning_va): Turned into small wrapper around
3913         format_warning_n_va, renamed to ...
3914         (format_warning_n_va): ... this, add N and PLURAL_GMSGID arguments,
3915         rename GMSGID to SINGULAR_GMSGID, if SINGULAR_GMSGID != PLURAL_GMSGID,
3916         use ngettext.
3917         (format_warning_at_substring_n): New function.
3918         * gimple-ssa-sprintf.c: Remove GCC diagnostic ignored pragma.
3919         (fmtwarn): Add ATTRIBUTE_GCC_DIAG.  Turn into a copy of
3920         format_warning_at_substring with just a shorter name instead of
3921         const function pointer.
3922         (fmtwarn_n): New function.
3923         (maybe_warn, format_directive, parse_directive): Use fmtwarn_n where
3924         appropriate, get rid of all the fmtstr temporaries, move conditionals
3925         with G_() wrapped string literals directly into fmtwarn arguments,
3926         cast dir.len to (int), formatting fixes.
3927
3928 2018-03-02  Thomas Schwinge  <thomas@codesourcery.com>
3929
3930         * doc/invoke.texi: Remove "Cilk Plus" references.
3931
3932 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
3933             Richard Biener  <rguenther@suse.de>
3934
3935         PR ipa/84628
3936         * expr.c (expand_expr_real_1) <case CALL_EXPR>: Don't emit diagnostics
3937         for error or warning attributes if CALL_FROM_THUNK_P is set.
3938         Formatting fixes.
3939
3940 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
3941
3942         PR target/56540
3943         * config/pa/pa.h (TARGET_CPU_CPP_BUILTINS): Predefine
3944         __SIZEOF_128__ macro if HPUX_LONG_DOUBLE_LIBRARY.
3945
3946         PR target/56540
3947         * config/ia64/ia64.h (TARGET_CPU_CPP_BUILTINS): Predefine
3948         __SIZEOF_{FPREG,FLOAT{80,128}}__ macros.
3949
3950         * predict.c (test_prediction_value_range): Use PROB_UNINITIALIZED
3951         instead of -1U in last predictors element's probability member.
3952
3953 2018-03-02  Eric Botcazou  <ebotcazou@adacore.com>
3954
3955         PR ipa/83983
3956         * ipa-devirt.c (odr_subtypes_equivalent_p): Get the ODR type of both
3957         arguments if they are comparable.
3958
3959 2018-03-02  Richard Sandiford  <richard.sandiford@linaro.org>
3960
3961         PR tree-optimization/84634
3962         * tree-vect-stmts.c (vectorizable_store, vectorizable_load): Replace
3963         masks and masked_loop_p with a single loop_masks, making sure it's
3964         null for bb vectorization.
3965
3966 2018-03-02  Richard Sandiford  <richard.sandiford@linaro.org>
3967
3968         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence)
3969         (vect_analyze_data_ref_access): Use loop->safe_len rather than
3970         loop->force_vectorize to check whether there is no alias.
3971
3972 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
3973
3974         PR target/84614
3975         * rtl.h (prev_real_nondebug_insn, next_real_nondebug_insn): New
3976         prototypes.
3977         * emit-rtl.c (next_real_insn, prev_real_insn): Fix up function
3978         comments.
3979         (next_real_nondebug_insn, prev_real_nondebug_insn): New functions.
3980         * cfgcleanup.c (try_head_merge_bb): Use prev_real_nondebug_insn
3981         instead of a loop around prev_real_insn.
3982         * combine.c (move_deaths): Use prev_real_nondebug_insn instead of
3983         prev_real_insn.
3984
3985         PR inline-asm/84625
3986         * config/i386/i386.c (ix86_print_operand): Use conditional
3987         output_operand_lossage instead of gcc_assert if CONST_VECTOR is not
3988         zero vector.
3989
3990 2018-03-02  Richard Biener  <rguenther@suse.de>
3991
3992         PR tree-optimization/84427
3993         * tree-ssa-pre.c (bitmap_remove_expr_from_set): Remove.
3994         (bitmap_set_subtract_values): Rewrite to handle multiple
3995         exprs per value.
3996         (clean): Likewise.
3997         (prune_clobbered_mems): Likewise.
3998         (phi_translate): Take edge instead of pred/phiblock.
3999         (phi_translate_1): Likewise.
4000         (phi_translate_set): Likewise.  Insert all translated
4001         exprs for a value into the set, keeping possibly multiple
4002         expressions per value.
4003         (compute_antic_aux): Adjust for phi_translate changes.
4004         When intersecting union the expressions and prune those
4005         not in the final value set, keeping possibly multiple
4006         expressions per value.  Do not use value-insertion
4007         for unioning ANTIC_OUT U EXP_GEN - TMP_GEN but merge
4008         all expressions.  Add verification that the value-sets
4009         only shrink during iteration.
4010         (compute_partial_antic_aux): Adjust for the phi_translate changes.
4011         (do_pre_regular_insertion): Likewise.
4012         (do_pre_partial_partial_insertion): Likewise.
4013
4014 2018-03-02  Richard Biener  <rguenther@suse.de>
4015
4016         PR target/82005
4017         * config/darwin.c (saved_debug_info_level): New static global.
4018         (darwin_asm_lto_start): Disable debug info generation for LTO out.
4019         (darwin_asm_lto_end): Restore debug info generation settings.
4020
4021 2018-03-01  Martin Liska  <mliska@suse.cz>
4022
4023         PR sanitizer/82484
4024         * sanopt.c (sanitize_rewrite_addressable_params): Do not handle
4025         volatile arguments.
4026
4027 2018-03-01  Richard Biener  <rguenther@suse.de>
4028
4029         PR debug/84645
4030         * dwarf2out.c (gen_variable_die): Properly handle late VLA
4031         type annotation with LTO when debug was disabled at compile-time.
4032
4033 2018-03-01  Matthew Fortune  <mfortune@gmail.com>
4034
4035         * config/mips/mips.c (mips_final_prescan_insn): Fix incorrect
4036         XINT with INTVAL.
4037         (mips_final_postscan_insn): Likewise.
4038
4039 2018-03-01  Richard Sandiford  <richard.sandiford@linaro.org>
4040
4041         PR rtl-optimization/84528
4042         * alias.c (init_alias_target): Add commentary.
4043         (init_alias_analysis): Only give HARD_FRAME_POINTER_REGNUM
4044         a unique base value if the frame pointer is not eliminated
4045         to the stack pointer.
4046
4047 2018-03-01  Tom de Vries  <tom@codesourcery.com>
4048
4049         PR rtl-optimization/83327
4050         * lra-int.h (hard_regs_spilled_into): Declare.
4051         * lra.c (hard_regs_spilled_into): Define.
4052         (init_reg_info): Init hard_regs_spilled_into.
4053         * lra-spills.c (assign_spill_hard_regs): Update hard_regs_spilled_into.
4054         * lra-lives.c (make_hard_regno_born, make_hard_regno_dead)
4055         (process_bb_lives): Handle hard_regs_spilled_into.
4056         (lra_create_live_ranges_1): Before doing liveness propagation, clear
4057         regs in all_hard_regs_bitmap if set in hard_regs_spilled_into.
4058
4059 2018-02-28  David Edelsohn  <dje.gcc@gmail.com>
4060
4061         * config.gcc (powerpc-ibm-aix7.1.*): New stanza.
4062         (powerpc-ibm-aix[789]*): Default to AIX 7.2.
4063         * config/rs6000/aix71.h (TARGET_DEFAULT): Revert to Power4 ISA.
4064         * config/rs6000/aix72.h: New file.
4065
4066 2018-02-28  Jakub Jelinek  <jakub@redhat.com>
4067
4068         * gimple-ssa-warn-restrict.c (maybe_diag_overlap): Use warning_n
4069         instead of warning_at with conditional singular and plural messages
4070         where possible.
4071
4072         PR target/52991
4073         * stor-layout.c (update_alignment_for_field): For
4074         targetm.ms_bitfield_layout_p (rli->t), if !is_bitfield
4075         && !DECL_PACKED (field), do the alignment update, just use
4076         only desired_align instead of MAX (type_align, desired_align)
4077         as the alignment.
4078         (place_field): Don't do known_align < desired_align handling
4079         early if targetm.ms_bitfield_layout_p (rli->t) and rli->prev_field
4080         is non-NULL, instead do it after rli->prev_field handling and
4081         only if not within a bitfield word.  For DECL_PACKED (field)
4082         use type_align of BITS_PER_UNIT.
4083
4084 2018-02-28  Eric Botcazou  <ebotcazou@adacore.com>
4085
4086         * config/aarch64/aarch64.c (aarch64_emit_probe_stack_range): Remove
4087         superfluous parentheses and trailing spaces.
4088
4089 2018-02-28  Richard Biener  <rguenther@suse.de>
4090
4091         PR tree-optimization/84584
4092         * graphite-scop-detection.c (scop_detection::add_scop): Discard
4093         SCoPs with fake exit edge.
4094
4095 2018-02-28  Martin Liska  <mliska@suse.cz>
4096
4097         PR testsuite/84597
4098         * timevar.c (timer::print): Fix format to properly print 100%
4099         values.
4100
4101 2018-02-28  Richard Biener  <rguenther@suse.de>
4102
4103         PR middle-end/84607
4104         * genmatch.c (capture_info::walk_match): Do not mark
4105         captured expressions without operands as expr_p given
4106         they act more like predicates and should be subject to
4107         "lost tail" side-effect preserving.
4108
4109 2018-02-28  Alexandre Oliva  <aoliva@redhat.com>
4110
4111         PR rtl-optimization/81611
4112         * auto-inc-dec.c (attempt_change): Move dead note from
4113         mem_insn if it's the next use of regno
4114         (find_address): Take address use of reg holding
4115         non-incremented value.  Add parm to limit search to the named
4116         reg only.
4117         (merge_in_block): Attempt to use a mem insn that is the next
4118         use of the original regno.
4119
4120 2018-02-27  Martin Sebor  <msebor@redhat.com>
4121
4122         PR c++/83871
4123         * gcc/doc/invoke.texi (-Wmissing-attributes): New option.
4124         * gcc/print-tree.c (print_node): Handle DECL_UNINLINABLE.
4125
4126 2018-02-27  Martin Sebor  <msebor@redhat.com>
4127
4128         PR translation/84207
4129         * diagnostic-core.h (warning_n, error_n, inform_n): Change
4130         n argument to unsigned HOST_WIDE_INT.
4131         * diagnostic.c (warning_n, error_n, inform_n): Ditto.
4132         (diagnostic_n_impl): Ditto.  Handle arguments in excess of LONG_MAX.
4133         * gimple-ssa-sprintf.c (format_directive): Simplify inform_n call.
4134         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Use warning_n.
4135
4136 2018-02-27  Richard Biener  <rguenther@suse.de>
4137
4138         PR tree-optimization/84512
4139         * tree-vect-loop.c (vect_compute_single_scalar_iteration_cost):
4140         Do not use the estimate returned from record_stmt_cost for
4141         the scalar iteration cost but sum properly using add_stmt_cost.
4142
4143 2018-02-27  Richard Biener  <rguenther@suse.de>
4144
4145         PR tree-optimization/84466
4146         * graphite-scop-detection.c (scop_detection::stmt_simple_for_scop_p):
4147         Adjust last change to less strictly validate use operands.
4148
4149 2018-02-27  Martin Liska  <mliska@suse.cz>
4150
4151         PR gcov-profile/84548
4152         * gcov.c (process_file): Allow partial overlap and consider it
4153         also as group functions.
4154         (output_lines): Properly calculate range of lines for a group.
4155
4156 2018-02-27  Martin Liska  <mliska@suse.cz>
4157
4158         * timevar.c (timer::print_row): Remove 'usr', 'sys', 'wall' and
4159         'ggc' suffixes.  Change first column width.
4160         (timer::print): Fix formatting of the column.
4161
4162 2018-02-27  Alexandre Oliva  <aoliva@redhat.com>
4163
4164         * tree-ssa-live.c (remove_unused_scope_block_p): Do not
4165         preserve inline entry blocks for the sake of debug inline
4166         entry point markers alone.
4167         (remove_unused_locals): Suggest in comments a better place to
4168         force the preservation of inline entry blocks that are
4169         otherwise unused, but do not preserve them.
4170
4171 2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
4172
4173         * config/i386/i386.c (ix86_output_indirect_jmp): Update comments.
4174
4175 2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
4176
4177         PR target/84039
4178         * config/i386/constraints.md (Bs): Replace
4179         ix86_indirect_branch_register with
4180         TARGET_INDIRECT_BRANCH_REGISTER.
4181         (Bw): Likewise.
4182         * config/i386/i386.md (indirect_jump): Likewise.
4183         (tablejump): Likewise.
4184         (*sibcall_memory): Likewise.
4185         (*sibcall_value_memory): Likewise.
4186         Peepholes of indirect call and jump via memory: Likewise.
4187         (*sibcall_GOT_32): Disallowed for TARGET_INDIRECT_BRANCH_REGISTER.
4188         (*sibcall_value_GOT_32): Likewise.
4189         * config/i386/predicates.md (indirect_branch_operand): Likewise.
4190         (GOT_memory_operand): Likewise.
4191         (call_insn_operand): Likewise.
4192         (sibcall_insn_operand): Likewise.
4193         (GOT32_symbol_operand): Likewise.
4194         * config/i386/i386.h (TARGET_INDIRECT_BRANCH_REGISTER): New.
4195
4196 2018-02-26  Eric Botcazou  <ebotcazou@adacore.com>
4197
4198         PR rtl-optimization/83496
4199         * reorg.c (steal_delay_list_from_target): Change REDUNDANT array from
4200         booleans to RTXes.  Call fix_reg_dead_note on every non-null element.
4201         (steal_delay_list_from_fallthrough): Call fix_reg_dead_note on a
4202         redundant insn, if any.
4203         (relax_delay_slots): Likewise.
4204         (update_reg_unused_notes): Rename REDUNDANT_INSN to OTHER_INSN.
4205
4206 2018-02-26  Richard Sandiford  <richard.sandiford@linaro.org>
4207
4208         PR tree-optimization/83965
4209         * tree-vect-patterns.c (vect_reassociating_reduction_p): Assume
4210         that grouped statements are part of a reduction chain.  Return
4211         true if the statement is not marked as a reduction itself but
4212         is part of a group.
4213         (vect_recog_dot_prod_pattern): Don't check whether the statement
4214         is part of a group here.
4215         (vect_recog_sad_pattern): Likewise.
4216         (vect_recog_widen_sum_pattern): Likewise.
4217
4218 2018-02-26  Eric Botcazou  <ebotcazou@adacore.com>
4219
4220         PR debug/84545
4221         * final.c (rest_of_clean_state): Also look for calls inside sequences.
4222
4223 2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
4224
4225         PR target/84530
4226         * config/i386/i386-protos.h (ix86_output_indirect_jmp): Remove
4227         the bool argument.
4228         (ix86_output_indirect_function_return): New prototype.
4229         (ix86_split_simple_return_pop_internal): Likewise.
4230         * config/i386/i386.c (indirect_return_via_cx): New.
4231         (indirect_return_via_cx_bnd): Likewise.
4232         (indirect_thunk_name): Handle return va CX_REG.
4233         (output_indirect_thunk_function): Create alias for
4234         __x86_return_thunk_[re]cx and __x86_return_thunk_[re]cx_bnd.
4235         (ix86_output_indirect_jmp): Remove the bool argument.
4236         (ix86_output_indirect_function_return): New function.
4237         (ix86_split_simple_return_pop_internal): Likewise.
4238         * config/i386/i386.md (*indirect_jump): Don't pass false
4239         to ix86_output_indirect_jmp.
4240         (*tablejump_1): Likewise.
4241         (simple_return_pop_internal): Change it to define_insn_and_split.
4242         Call ix86_split_simple_return_pop_internal to split it for
4243         -mfunction-return=.
4244         (simple_return_indirect_internal): Call
4245         ix86_output_indirect_function_return instead of
4246         ix86_output_indirect_jmp.
4247
4248 2018-02-26  Jakub Jelinek  <jakub@redhat.com>
4249
4250         PR bootstrap/84405
4251         * vec.h (vec_default_construct): For BROKEN_VALUE_INITIALIZATION use
4252         memset and value initialization afterwards.
4253
4254 2018-02-26  Christophe Lyon  <christophe.lyon@linaro.org>
4255
4256         * Makefile.in (lto-wrapper): Use ALL_LINKERFLAGS.
4257
4258 2018-02-26  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
4259
4260         PR target/84521
4261         * common/config/aarch64/aarch64-common.c
4262         (aarch_option_optimization_table[]): Switch
4263         off fomit-frame-pointer
4264
4265 2018-02-26  Kito Cheng  <kito.cheng@gmail.com>
4266             Chung-Ju Wu  <jasonwucj@gmail.com>
4267
4268         * config/nds32/nds32-multiple.md (load_multiple): Disallow
4269         volatile memory.
4270         (store_multiple): Ditto.
4271
4272 2018-02-26  Kito Cheng  <kito.cheng@gmail.com>
4273
4274         * config.gcc: Add --with-cpu support for nds32 target.
4275         * config/nds32/nds32-opts.h (nds32_cpu_type): New.
4276         * config/nds32/nds32.opt: Add -mcpu= option.
4277
4278 2018-02-25  Segher Boessenkool  <segher@kernel.crashing.org>
4279
4280         * config/rs6000/rs6000.opt (mvrsave=no, mvrsave=yes, isel=no,
4281         isel=yes): Warn for these deprecated options.
4282
4283 2018-02-23  David Edelsohn  <dje.gcc@gmail.com>
4284
4285         * config/rs6000/aix71.h (TARGET_DEFAULT): Change to
4286         ISA_2_5_MASKS_EMBEDDED.
4287
4288 2018-02-23  Jakub Jelinek  <jakub@redhat.com>
4289
4290         * ipa-prop.c (ipa_vr_ggc_hash_traits::hash): Hash p->min and
4291         p->max as pointers rather than using iterative_hash_expr.
4292
4293 2018-02-23  Carl Love  <cel@us.ibm.com>
4294
4295         * config/rs6000/rs6000-builtin.def: Change VSIGNED2 and VUNSIGNED2
4296         macro expansions from BU_VSX_2 to BU_P8V_VSX_2 and BU_VSX_OVERLOAD_2 to
4297         BU_P8V_OVERLOAD_2.
4298         * config/rs6000/rs6000-c.c: Change VSX_BUILTIN_VEC_VSIGNED2 to
4299         P8V_BUILTIN_VEC_VSIGNED2.  Change VSX_BUILTIN_VEC_VUNSIGNED2 to
4300         P8V_BUILTIN_VEC_VUNSIGNED2.
4301
4302 2018-02-22  Vladimir Makarov  <vmakarov@redhat.com>
4303
4304         PR target/81572
4305         * lra-int.h (LRA_UNKNOWN_ALT, LRA_NON_CLOBBERED_ALT): New macros.
4306         * lra.c (lra_set_insn_recog_data, lra_update_insn_recog_data): Use
4307         LRA_UNKNOWN_ALT.
4308         * lra-constraints.c (curr_insn_transform): Set up
4309         LRA_NON_CLOBBERED_ALT for moves processed on the fast path.  Use
4310         LRA_UNKNOWN_ALT.
4311         (remove_inheritance_pseudos): Use LRA_UNKNOWN_ALT.
4312         * lra-eliminations.c (spill_pseudos): Ditto.
4313         (process_insn_for_elimination): Ditto.
4314         * lra-lives.c (reg_early_clobber_p): Use the new macros.
4315         * lra-spills.c (spill_pseudos): Use LRA_UNKNOWN_ALT and
4316         LRA_NON_CLOBBERED_ALT.
4317
4318 2018-02-22  Martin Sebor  <msebor@redhat.com>
4319
4320         PR tree-optimization/84480
4321         * gimple-fold.c (gimple_fold_builtin_strcpy): Move warnings
4322         to maybe_diag_stxncpy_trunc.  Call it.
4323         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Integrate warnings
4324         from gimple_fold_builtin_strcpy.  Print inlining stack.
4325         (handle_builtin_stxncpy): Print inlining stack.
4326         * tree-ssa-strlen.h (maybe_diag_stxncpy_trunc): Declare.
4327
4328 2018-02-22  H.J. Lu  <hongjiu.lu@intel.com>
4329
4330         PR target/84176
4331         * config/i386/i386.c (ix86_set_indirect_branch_type): Issue an
4332         error when -mindirect-branch=thunk-extern, -fcf-protection=branch
4333         and -fcheck-pointer-bounds are used together.
4334         (indirect_thunk_prefix): New enum.
4335         (indirect_thunk_need_prefix): New function.
4336         (indirect_thunk_name): Replace need_bnd_p with need_prefix.  Use
4337         "_nt" instead of "_bnd" for NOTRACK prefix.
4338         (output_indirect_thunk): Replace need_bnd_p with need_prefix.
4339         (output_indirect_thunk_function): Likewise.
4340         (): Likewise.
4341         (ix86_code_end): Update output_indirect_thunk_function calls.
4342         (ix86_output_indirect_branch_via_reg): Replace
4343         ix86_bnd_prefixed_insn_p with indirect_thunk_need_prefix.
4344         (ix86_output_indirect_branch_via_push): Likewise.
4345         (ix86_output_function_return): Likewise.
4346         * doc/invoke.texi: Document -mindirect-branch=thunk-extern is
4347         incompatible with -fcf-protection=branch and
4348         -fcheck-pointer-bounds.
4349
4350 2018-02-22  Steve Ellcey  <sellcey@cavium.com>
4351
4352         PR target/83335
4353         * config/aarch64/aarch64.c (aarch64_print_address_internal):
4354         Change gcc_assert call to output_operand_lossage.
4355
4356 2018-02-22  Steve Ellcey  <sellcey@cavium.com>
4357
4358         * doc/extend.texi (__builtin_extend_pointer): Document builtin.
4359
4360 2018-02-22  DJ Delorie  <dj@redhat.com>
4361             Sebastian Perta  <sebastian.perta@renesas.com>
4362             Oleg Endo  <olegendo@gcc.gnu.org>
4363
4364         * config/rx/rx.c (rx_rtx_costs): New function.
4365         (TARGET_RTX_COSTS): Override to use rx_rtx_costs.
4366
4367 2018-02-22  Thomas Preud'homme  <thomas.preudhomme@arm.com>
4368
4369         * config/arm/t-multilib: Map Armv8-R to Armv7 multilibs.
4370
4371 2018-02-22  Martin Liska  <mliska@suse.cz>
4372
4373         PR driver/83193
4374         * common/config/arm/arm-common.c (arm_print_hint_for_cpu_option):
4375         Add "native" as a possible value.
4376
4377 2018-02-22  Martin Liska  <mliska@suse.cz>
4378
4379         PR driver/83193
4380         * config/i386/i386.c (ix86_option_override_internal):
4381         Add "native" as a possible value for -march and -mtune.
4382
4383 2018-02-22  Jakub Jelinek  <jakub@redhat.com>
4384
4385         PR target/84502
4386         * stor-layout.c (finalize_type_size): Propagate TYPE_EMPTY_P flag
4387         to all type variants.
4388
4389         PR tree-optimization/84503
4390         * gimple-ssa-store-merging.c (merged_store_group::merge_into): Compute
4391         width as info->bitpos + info->bitsize - start.
4392         (merged_store_group::merge_overlapping): Simplify width computation.
4393         (check_no_overlap): New function.
4394         (imm_store_chain_info::try_coalesce_bswap): Compute expected
4395         start + width and last_order of the group, fail if check_no_overlap
4396         fails.
4397         (imm_store_chain_info::coalesce_immediate_stores): Don't merge info
4398         to group if check_no_overlap fails.
4399
4400 2018-02-21  Segher Boessenkool  <segher@kernel.crashing.org>
4401
4402         * config/rs6000/altivec.md: Delete contraint arguments to
4403         define_expand, define_split, and define_peephole2, and in
4404         define_insn_and_split if always unused.
4405         * config/rs6000/darwin.md: Ditto.
4406         * config/rs6000/dfp.md: Ditto.
4407         * config/rs6000/rs6000.md: Ditto.
4408         * config/rs6000/sync.md: Ditto.
4409         * config/rs6000/vector.md: Ditto.
4410         * config/rs6000/vsx.md: Ditto.
4411
4412 2018-02-21  Segher Boessenkool  <segher@kernel.crashing.org>
4413
4414         * config/rs6000/altivec.md: Write output control strings as braced
4415         blocks instead of double-quoted strings.
4416         * config/rs6000/darwin.md: Ditto.
4417         * config/rs6000/rs6000.md: Ditto.
4418         * config/rs6000/vector.md: Ditto.
4419         * config/rs6000/vsx.md: Ditto.
4420
4421 2018-02-21  Jason Merrill  <jason@redhat.com>
4422
4423         PR c++/84314 - ICE with templates and fastcall attribute.
4424         * attribs.c (build_type_attribute_qual_variant): Remove assert.
4425
4426 2018-02-21  Jan Hubicka  <hubicka@ucw.cz>
4427
4428         * ipa-cp.c (determine_versionability): Fix comment typos.
4429
4430 2018-02-21  Jan Hubicka  <hubicka@ucw.cz>
4431
4432         PR c/84229
4433         * ipa-cp.c (determine_versionability): Do not version functions caling
4434         va_arg_pack.
4435
4436 2018-02-21  Martin Liska  <mliska@suse.cz>
4437
4438         PR driver/83193
4439         * config/aarch64/aarch64.c (aarch64_print_hint_for_core_or_arch):
4440         Add "native" as a possible value.
4441         * config/aarch64/aarch64.h (HAVE_LOCAL_CPU_DETECT):  Define
4442         the macro when native cpu detection is available.
4443
4444 2018-02-21  Martin Liska  <mliska@suse.cz>
4445
4446         PR driver/83193
4447         * common/config/arm/arm-common.c (arm_print_hint_for_arch_option):
4448         Add "native" as a possible value.
4449         * config/arm/arm.h (HAVE_LOCAL_CPU_DETECT): Define the macro
4450         when native cpu detection is available.
4451
4452 2018-02-21  Jakub Jelinek  <jakub@redhat.com>
4453             Martin Sebor  <msebor@redhat.com>
4454
4455         PR tree-optimization/84478
4456         * gimple-fold.h (get_range_strlen): Add a bool argument defaulted to
4457         false.
4458         * gimple-fold.c (get_range_strlen): Make minlen const and assume it
4459         can't be NULL.  Change FUZZY from bool to int, for 1 add PHI/COND_EXPR
4460         support which is conservatively correct, for 2 only stay conservative
4461         for maxlen.  Formatting and comment capitalization fixes.  Add STRICT
4462         argument to the 2 argument get_range_strlen, adjust 6 arg
4463         get_range_strlen caller and clear minmaxlen[0] and [1] if it returned
4464         false.
4465         (get_maxval_strlen): Adjust 6 arg get_range_strlen caller.
4466         (gimple_fold_builtin_strlen): Pass true as last argument to
4467         get_range_strlen.
4468
4469 2018-02-20  Martin Sebor  <msebor@redhat.com>
4470
4471         PR middle-end/84095
4472         * gimple-ssa-warn-restrict.c (builtin_memref::extend_offset_range): New.
4473         (builtin_memref::set_base_and_offset): Same.  Handle inner references.
4474         (builtin_memref::builtin_memref): Factor out parts into
4475         set_base_and_offset and call it.
4476
4477 2018-02-20  Richard Sandiford  <richard.sandiford@linaro.org>
4478
4479         PR middle-end/84406
4480         * optabs-query.c (find_widening_optab_handler_and_mode): If from_mode
4481         is a scalar_int_mode, assert that to_mode is a scalar_int_mode with
4482         greater precision.  If to_mode is a MODE_PARTIAL_INT, stop the
4483         search at the associated MODE_INT.
4484
4485 2018-02-20  Jeff Law  <law@redhat.com>
4486
4487         PR middle-end/82123
4488         PR tree-optimization/81592
4489         PR middle-end/79257
4490         * gimple-ssa-sprintf.c (format_integer): Query EVRP range analyzer
4491         for range data rather than using global data.
4492         * gimple-ssa-sprintf.c (get_int_range): Query EVRP range analyzer for
4493         range data rather than using global data.
4494         * gimple-ssa-sprintf.c (get_int_range): Accept vr_values parameter
4495         pass it to children as needed.
4496         (struct directive::fmtresult): Similarly.
4497         (struct directive::set_width): Similarly.
4498         (struct directive::set_precision): Similarly.
4499         (format_integer, format_directive, parse_directive): Similarly.
4500         (format_none): Accept unnamed vr_values parameter.
4501         (format_percent, format_floating, format_character): Similarly.
4502         (format_string, format_plain): Similarly.
4503         * gimple-ssa-sprintf.c (sprintf_dom_walker::handle_gimple_call): Query
4504         the EVRP range analyzer for range data rather than using global data.
4505         * gimple-ssa-sprintf.c: Include alloc-pool.h, vr-values.h and
4506         gimple-ssa-evrp-analyze.h
4507         (class sprintf_dom_walker): Add after_dom_children member function.
4508         Add evrp_range_analyzer member.
4509         (sprintf_dom_walker::before_dom_children): Call into the EVRP
4510         range analyzer as needed.
4511         (sprintf_dom_walker::after_dom_children): New member function.
4512         * gimple-ssa-evrp-analyze.c (evrp_range_analyzer::enter): Do nothing
4513         if not optimizing.
4514         (evrp_range_analyzer::record_ranges_from_stmt): Likewise.
4515         (evrp_range_analyzer::pop_to_marker): Likewise.
4516
4517 2018-02-20  Richard Sandiford  <richard.sandiford@linaro.org>
4518
4519         PR tree-optimization/84419
4520         * internal-fn.c (expand_call_mem_ref): Create a TARGET_MEM_REF
4521         with the required type if its current type is compatible but
4522         different.
4523
4524 2018-02-20  Jakub Jelinek  <jakub@redhat.com>
4525
4526         PR middle-end/82004
4527         * match.pd (pow(C,x) -> exp(log(C)*x)): Delay all folding until
4528         after vectorization.
4529
4530 2018-02-20  Martin Liska  <mliska@suse.cz>
4531
4532         PR driver/83193
4533         * config/aarch64/aarch64.c (aarch64_print_hint_for_core_or_arch): Print
4534         possible values if we don't have a hint.
4535
4536 2018-02-20  Martin Liska  <mliska@suse.cz>
4537
4538         PR c/84310
4539         PR target/79747
4540         * final.c (shorten_branches): Build align_tab array with one
4541         more element.
4542         * opts.c (finish_options): Add alignment option limit check.
4543         (MAX_CODE_ALIGN): Likewise.
4544         (MAX_CODE_ALIGN_VALUE): Likewise.
4545         * doc/invoke.texi: Document maximum allowed option value for
4546         all -falign-* options.
4547
4548 2018-02-19  Jakub Jelinek  <jakub@redhat.com>
4549
4550         PR target/84146
4551         * reg-notes.def (REG_CALL_ARG_LOCATION): New reg note.
4552         * insn-notes.def (NOTE_INSN_CALL_ARG_LOCATION): Remove.
4553         * var-tracking.c (emit_note_insn_var_location): Remove all references
4554         to NOTE_INSN_CALL_ARG_LOCATION.
4555         (emit_notes_in_bb): Emit arguments as REG_CALL_ARG_LOCATION note on
4556         the CALL_INSN rather than separate NOTE_INSN_CALL_ARG_LOCATION note.
4557         Use copy_rtx_if_shared.
4558         * dwarf2out.c (gen_subprogram_die): Use XEXP with 0 instead of
4559         NOTE_VAR_LOCATION on ca_loc->call_arg_loc_note.
4560         (dwarf2out_var_location): Remove handling of
4561         NOTE_INSN_CALL_ARG_LOCATION, instead handle REG_CALL_ARG_LOCATION note
4562         on call_insn.
4563         * final.c (final_scan_insn): Remove all references to
4564         NOTE_INSN_CALL_ARG_LOCATION.
4565         (rest_of_clean_state): Likewise.  Remove REG_CALL_ARG_LOCATION notes
4566         before dumping final insns.
4567         * except.c (emit_note_eh_region_end): Remove all references to
4568         NOTE_INSN_CALL_ARG_LOCATION.
4569         * config/alpha/alpha.c (alpha_pad_function_end): Likewise.
4570         * config/c6x/c6x.c (c6x_gen_bundles): Likewise.
4571         * config/arc/arc.c (hwloop_optimize): Likewise.
4572         * config/arm/arm.c (create_fix_barrier): Likewise.
4573         * config/s390/s390.c (s390_chunkify_start): Likewise.
4574         * config/sh/sh.c (find_barrier): Likewise.
4575         * config/i386/i386.c (rest_of_insert_endbranch,
4576         ix86_seh_fixup_eh_fallthru): Likewise.
4577         * config/xtensa/xtensa.c (hwloop_optimize): Likewise.
4578         * config/iq2000/iq2000.c (final_prescan_insn): Likewise.
4579         * config/frv/frv.c (frv_function_prologue): Likewise.
4580         * emit-rtl.c (try_split): Likewise.  Copy over REG_CALL_ARG_LOCATION
4581         reg note.
4582         (note_outside_basic_block_p): Remove all references to
4583         NOTE_INSN_CALL_ARG_LOCATION.
4584         * gengtype.c (adjust_field_rtx_def): Likewise.
4585         * print-rtl.c (rtx_writer::print_rtx_operand_code_0, print_insn):
4586         Likewise.
4587         * jump.c (cleanup_barriers, delete_related_insns): Likewise.
4588         * cfgrtl.c (force_nonfallthru_and_redirect): Likewise.
4589
4590         PR c++/84444
4591         * builtins.c (builtin_mathfn_code): Don't check if CALL_EXPR_FN (t)
4592         is ADDR_EXPR.
4593
4594         PR tree-optimization/84452
4595         * tree-vect-patterns.c (vect_recog_pow_pattern): Don't call
4596         expand_simd_clones if targetm.simd_clone.compute_vecsize_and_simdlen
4597         is NULL.
4598
4599 2018-02-19  Martin Liska  <mliska@suse.cz>
4600
4601         PR sanitizer/82183
4602         * passes.def: Put pass_sancov_O0 before pass_lower_switch with -O0.
4603
4604 2018-02-19  Martin Liska  <mliska@suse.cz>
4605             Richard Sandiford  <richard.sandiford@linaro.org>
4606
4607         PR tree-optimization/82491
4608         * gimple-fold.c (get_base_constructor): Make earlier bail out
4609         to prevent ubsan.
4610
4611 2018-02-19  Carl Love  <cel@us.ibm.com>
4612
4613         * config/rs6000/rs6000-builtin.def: Change NEG macro expansions from
4614         BU_ALTIVEC_A to BU_P8V_AV_1 and BU_ALTIVEC_OVERLOAD_1 to
4615         BU_P8V_OVERLOAD_1.
4616         * config/rs6000/rs6000-c.c: Change ALTIVEC_BUILTIN_VEC_NEG to
4617         P8V_BUILTIN_VEC_NEG.
4618
4619 2018-02-19  Sebastian Perta  <sebastian.perta@renesas.com>
4620
4621         * config/rl78/rl78.md (movdf): New define expand.
4622
4623 2018-02-19  Martin Liska  <mliska@suse.cz>
4624
4625         PR other/80589
4626         * doc/invoke.texi: Fix typo.
4627         * params.def (PARAM_MAX_LOOP_HEADER_INSNS): Likewise.
4628
4629 2018-02-18  Segher Boessenkool  <segher@kernel.crashing.org>
4630
4631         * config/rs6000/rs6000.c (rs6000_option_override_internal): Don't
4632         handle rs6000_single_float and rs6000_double_float specially for
4633         e500 family CPUs.
4634
4635 2018-02-16  Jeff Law  <law@redhat.com>
4636
4637         * config/rx/rx.c (add_pop_cfi_notes): New function.;
4638         (pop_regs): Use it.
4639
4640 2018-02-16  Jakub Jelinek  <jakub@redhat.com>
4641
4642         PR ipa/84425
4643         * ipa-inline.c (inline_small_functions): Fix a typo.
4644
4645 2018-02-16  Nathan Sidwell  <nathan@acm.org>
4646
4647         * doc/extend.texi (Backwards Compatibility): Americanize 'behaviour'.
4648
4649 2018-02-16  Carl Love  <cel@us.ibm.com>
4650
4651         * config/rs6000/rs6000-builtin.def: Add BU_P8V_VSX_2 macro definition.
4652         Change FLOAT2 expansions from BU_VSX_2 to BU_P8V_VSX_2 and
4653         from BU_VSX_OVERLOAD_2 to BU_P8V_OVERLOAD_2.
4654         * config/rs6000/rs6000-c.c: Changed macro VSX_BUILTIN_VEC_FLOAT2
4655         expansion to P8V_BUILTIN_VEC_FLOAT2.
4656
4657 2018-02-16  Vladimir Makarov  <vmakarov@redhat.com>
4658
4659         PR rtl-optimization/70023
4660         * lra-constraints.c (inherit_in_ebb): Take hard reg mode of
4661         src_regno into account.
4662
4663 2018-02-16  Carl Love  <cel@us.ibm.com>
4664
4665         * config/rs6000/altivec.h: Remove vec_vextract4b and vec_vinsert4b.
4666         * config/rs6000/rs6000-builtin.def: Remove macro expansion for
4667         VEXTRACT4B, VINSERT4B, VINSERT4B_DI and VEXTRACT4B.
4668         * config/rs6000/rs6000.c: Remove case statements for
4669         P9V_BUILTIN_VEXTRACT4B, P9V_BUILTIN_VEC_VEXTRACT4B,
4670         P9V_BUILTIN_VINSERT4B, P9V_BUILTIN_VINSERT4B_DI,
4671         and P9V_BUILTIN_VEC_VINSERT4B.
4672         * config/rs6000/rs6000-c.c (altivec_expand_builtin): Remove entries for
4673         P9V_BUILTIN_VEC_VEXTRACT4B and P9V_BUILTIN_VEC_VINSERT4B.
4674         * config/rs6000/vsx.md:
4675         * doc/extend.texi: Remove vec_vextract4b, non ABI definitions for
4676         vec_insert4b.
4677
4678 2018-02-16  Carl Love  <cel@us.ibm.com>
4679
4680         * config/rs6000/altivec.h: Add builtin names vec_extract4b
4681         vec_insert4b.
4682         * config/rs6000/rs6000-builtin.def: Add INSERT4B and EXTRACT4B
4683         definitions.
4684         * config/rs6000/rs6000-c.c: Add the definitions for
4685         P9V_BUILTIN_VEC_EXTRACT4B and P9V_BUILTIN_VEC_INSERT4B.
4686         * config/rs6000/rs6000.c (altivec_expand_builtin): Add
4687         P9V_BUILTIN_EXTRACT4B and P9V_BUILTIN_INSERT4B case statements.
4688         * config/rs6000/vsx.md: Add define_insn extract4b.  Add define_expand
4689         definition for insert4b and define insn *insert3b_internal.
4690         * doc/extend.texi: Add documentation for vec_extract4b.
4691
4692 2018-02-16  Nathan Sidwell  <nathan@acm.org>
4693
4694         * doc/extend.texi (Backwards Compatibility): Mention friend
4695         injection.  Note for-scope is deprecated.
4696         * doc/invoke.texi (-ffriend-injection): Deprecate.
4697
4698 2018-02-16  Segher Boessenkool  <segher@kernel.crashing.org>
4699
4700         * combine.c (try_combine): When adjusting LOG_LINKS for the destination
4701         that moved to I2, also allow destinations that are a paradoxical
4702         subreg (instead of a normal reg).
4703
4704 2018-02-16  Oleg Endo  <olegendo@gcc.gnu.org>
4705
4706         PR target/83831
4707         * config/rx/rx.c (rx_fuse_in_memory_bitop): Convert shift operand
4708         to QImode.
4709
4710 2018-02-16  Richard Biener  <rguenther@suse.de>
4711
4712         PR tree-optimization/84037
4713         PR tree-optimization/84016
4714         PR target/82862
4715         * config/i386/i386.c (ix86_builtin_vectorization_cost):
4716         Adjust vec_construct for the fact we need additional higher latency
4717         128bit inserts for AVX256 and AVX512 vector builds.
4718         (ix86_add_stmt_cost): Scale vector construction cost for
4719         elementwise loads.
4720
4721 2018-02-16  Richard Biener  <rguenther@suse.de>
4722
4723         PR tree-optimization/84417
4724         * tree-ssa.c (non_rewritable_mem_ref_base): Properly constrain
4725         the MEM_REF offset when conversion to BIT_FIELD_REF is desired.
4726         (non_rewritable_lvalue_p): Likewise, use poly-ints.
4727
4728 2018-02-16  Martin Liska  <mliska@suse.cz>
4729
4730         PR sanitizer/84307
4731         * internal-fn.def (ASAN_CHECK): Set proper flags.
4732         (ASAN_MARK): Likewise.
4733
4734 2018-02-16  Julia Koval  <julia.koval@intel.com>
4735
4736         * config/i386/i386.c (ix86_option_override_internal): Remove PTA_CLWB
4737         from PTA_CANNONLAKE.
4738
4739 2018-02-16  Jakub Jelinek  <jakub@redhat.com>
4740
4741         PR target/84272
4742         * config/aarch64/cortex-a57-fma-steering.c (fma_forest::merge_forest):
4743         Use ++iter rather than iter++ for std::list iterators.
4744         (func_fma_steering::dfs): Likewise.  Don't delete nodes right away,
4745         defer deleting them until all nodes in the forest are processed.  Do
4746         free even leaf nodes.  Change to_process into auto_vec.
4747
4748         PR bootstrap/84405
4749         * system.h (BROKEN_VALUE_INITIALIZATION): Define for GCC < 4.3.
4750         * vec.h (vec_default_construct): Use memset instead of placement new
4751         if BROKEN_VALUE_INITIALIZATION is defined.
4752         * hash-table.h (hash_table<Descriptor, Allocator>::empty_slow): Use
4753         memset instead of value initialization if BROKEN_VALUE_INITIALIZATION
4754         is defined.
4755
4756         PR rtl-optimization/83723
4757         * lra-int.h (lra_substitute_pseudo): Add DEBUG_P argument.
4758         * lra.c (lra_substitute_pseudo): Likewise.  If true, use
4759         gen_rtx_raw_SUBREG instead of gen_rtx_SUBREG.  Pass DEBUG_P to
4760         recursive calls.
4761         (lra_substitute_pseudo_within_insn): Adjust lra_substitute_pseudo
4762         callers.
4763         * lra-constraints.c (inherit_reload_reg, split_reg): Likewise.
4764
4765 2018-02-16  Eric Botcazou  <ebotcazou@adacore.com>
4766
4767         PR rtl-optimization/81443
4768         * rtlanal.c (num_sign_bit_copies1) <SUBREG>: Do not propagate results
4769         from inner REGs to paradoxical SUBREGs.
4770
4771 2018-02-16  Richard Biener  <rguenther@suse.de>
4772
4773         PR tree-optimization/84399
4774         * graphite-scop-detection.c (scop_detection::stmt_simple_for_scop_p):
4775         For operands we can analyze at their definition make sure we can
4776         analyze them at each use as well.
4777
4778 2018-02-16  Richard Biener  <rguenther@suse.de>
4779
4780         PR tree-optimization/84190
4781         * tree-ssa.c (non_rewritable_mem_ref_base): Do not touch
4782         volatile accesses if the decl isn't volatile.
4783
4784 2018-02-15  Jason Merrill  <jason@redhat.com>
4785
4786         PR c++/84314 - ICE with templates and fastcall attribute.
4787         * attribs.c (build_type_attribute_qual_variant): Don't clobber
4788         TYPE_CANONICAL on an existing type.
4789
4790 2018-02-15  Jakub Jelinek  <jakub@redhat.com>
4791
4792         PR tree-optimization/84383
4793         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Don't look at
4794         dstoff nor call operand_equal_p if dstbase is NULL.
4795
4796         PR tree-optimization/84334
4797         * match.pd ((A +- CST1) +- CST2 -> A + CST3): If A is
4798         also a CONSTANT_CLASS_P, punt.
4799
4800 2018-02-14  Jim Wilson  <jimw@sifive.com>
4801
4802         * config/riscv/riscv.c (riscv_first_stack_step): Move locals after
4803         first SMALL_OPERAND check.  New local min_second_step.  Move assert
4804         to where locals are set.  Add TARGET_RVC support.
4805         * config/riscv/riscv.h (C_SxSP_BITS, SWSP_REACH, SDSP_REACH): New.
4806
4807 2018-02-14  Indu Bhagat  <indu.bhagat@oracle.com>
4808
4809         * doc/invoke.texi: Correct -Wformat-overflow code sample.
4810
4811 2018-02-14  Martin Sebor  <msebor@redhat.com>
4812
4813         PR tree-optimization/83698
4814         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): For
4815         arrays constrain the offset range to their bounds.
4816         (builtin_access::strcat_overlap): Adjust the bounds of overlap offset.
4817         (builtin_access::overlap): Avoid setting the size of overlap if it's
4818         already been set.
4819         (maybe_diag_overlap): Also consider arrays when deciding what values
4820         of offsets to include in diagnostics.
4821
4822 2018-02-14  Martin Sebor  <msebor@redhat.com>
4823
4824         PR c/84108
4825         * attribs.c (diag_attr_exclusions): Consider the exclusion(s)
4826         that correspond to the kind of a declaration.
4827
4828 2018-02-14  John David Anglin  <danglin@gcc.gnu.org>
4829
4830         PR target/83984
4831         * config/pa/pa.md: Load address of PIC label using the linkage table
4832         if the label is nonlocal.
4833
4834 2018-02-14  Kelvin Nilsen  <kelvin@gcc.gnu.org>
4835
4836         * config/rs6000/rs6000.c (rs6000_option_override_internal): Issue
4837         warning message if user requests -maltivec=be.
4838         * doc/invoke.texi: Document deprecation of -maltivec=be.
4839
4840 2018-02-14  Will Schmidt  <will_schmidt@vnet.ibm.com>
4841
4842         PR target/84220
4843         * config/rs6000/rs6000-c.c: Update definitions for
4844         ALTIVEC_BUILTIN_VEC_SLD, ALTIVEC_BUILTIN_VEC_SLDW,
4845         VEC_XXSLDWI and ALTIVEC_BUILTIN_VEC_XXPERMDI builtins.
4846
4847 2018-02-14  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
4848
4849         PR target/84239
4850         * config/i386/cetintrin.h: Remove _rdssp[d|q] and
4851         add _get_ssp intrinsics. Remove argument from
4852         __builtin_ia32_rdssp[d|q].
4853         * config/i386/i386-builtin-types.def: Add UINT_FTYPE_VOID.
4854         * config/i386/i386-builtin.def: Remove argument from
4855         __builtin_ia32_rdssp[d|q].
4856         * config/i386/i386.c: Use UINT_FTYPE_VOID. Use
4857         ix86_expand_special_args_builtin for _rdssp[d|q].
4858         * config/i386/i386.md: Remove argument from rdssp[si|di] insn.
4859         Clear register before usage.
4860         * doc/extend.texi: Remove argument from __builtin_ia32_rdssp[d|q].
4861         Add documentation for new _get_ssp and _inc_ssp intrinsics.
4862
4863 2018-02-14  Richard Sandiford  <richard.sandiford@linaro.org>
4864
4865         PR tree-optimization/84357
4866         * tree-data-ref.c (object_address_invariant_in_loop_p): Check
4867         operand 1 of an ARRAY_REF too.
4868
4869 2018-02-14  Oleg Endo  <olegendo@gcc.gnu.org>
4870
4871         PR target/83831
4872         * config/rx/rx-protos.h (rx_reg_dead_or_unused_after_insn,
4873         rx_copy_reg_dead_or_unused_notes, rx_fuse_in_memory_bitop): New
4874         declarations.
4875         (set_of_reg): New struct.
4876         (rx_find_set_of_reg, rx_find_use_of_reg): New functions.
4877         * config/rx/rx.c (rx_reg_dead_or_unused_after_insn,
4878         rx_copy_reg_dead_or_unused_notes, rx_fuse_in_memory_bitop): New
4879         functions.
4880         * config/rx/rx.md (andsi3, iorsi3, xorsi3): Convert to insn_and_split.
4881         Split into bitclr, bitset, bitinvert patterns if appropriate.
4882         (*bitset, *bitinvert, *bitclr): Convert to named insn_and_split and
4883         use rx_fuse_in_memory_bitop.
4884         (*bitset_in_memory, *bitinvert_in_memory, *bitclr_in_memory): Convert
4885         to named insn, correct maximum insn length.
4886
4887 2018-02-14  Jozef Lawrynowicz  <jozefl.gcc@gmail.com>
4888
4889         PR target/79242
4890         * machmode.def: Define a complex mode for PARTIAL_INT.
4891         * genmodes.c (complex_class): Return MODE_COMPLEX_INT for
4892         MODE_PARTIAL_INT.
4893         * doc/rtl.texi: Document CSPImode.
4894         * config/msp430/msp430.c (msp430_hard_regno_nregs): Add CPSImode
4895         handling.
4896         (msp430_hard_regno_nregs_with_padding): Likewise.
4897
4898 2018-02-13  Peter Bergner  <bergner@vnet.ibm.com>
4899
4900         PR target/84279
4901         * config/rs6000/rs6000.c (mem_operand_gpr): Disallow altivec addresses.
4902
4903 2018-02-13  Segher Boessenkool  <segher@kernel.crashing.org>
4904
4905         PR rtl-optimization/84169
4906         * combine.c (try_combine): New variable split_i2i3.  Set it to true if
4907         we generated a parallel as new i3 and we split that to new i2 and i3
4908         instructions.  Handle split_i2i3 similar to swap_i2i3: scan the
4909         LOG_LINKs of i3 to see which of those need to link to i2 now.  Link
4910         those to i2, not i1.  Partially rewrite this scan code.
4911
4912 2018-02-13  Jakub Jelinek  <jakub@redhat.com>
4913
4914         PR c/82210
4915         * stor-layout.c (place_field): For variable length fields, adjust
4916         offset_align afterwards not just based on the field's alignment,
4917         but also on the size.
4918
4919         PR middle-end/84309
4920         * match.pd (pow(C,x) -> exp(log(C)*x)): Use exp2s and log2s instead
4921         of exps and logs in the use_exp2 case.
4922
4923 2018-02-13  Jeff Law  <law@redhat.com>
4924
4925         * config/rl/rl78.c (rl78_attribute_table): Fix terminator and
4926         entry for "vector".
4927
4928         * config/rl78/rl78.c (rl78_handle_func_attribute): Mark
4929         ARGS as unused.
4930
4931 2018-02-13  Alexandre Oliva  <aoliva@redhat.com>
4932
4933         PR debug/84342
4934         PR debug/84319
4935         * common.opt (gas-loc-support, gas-locview-support): New.
4936         (ginline-points, ginternal-reset-location-views): New.
4937         * doc/invoke.texi: Document them.  Use @itemx where intended.
4938         (gvariable-location-views): Adjust.
4939         * target.def (reset_location_view): New.
4940         * doc/tm.texi.in (DWARF2_ASM_VIEW_DEBUG_INFO): New.
4941         (TARGET_RESET_LOCATION_VIEW): New.
4942         * doc/tm.texi: Rebuilt.
4943         * dwarf2out.c (dwarf2out_default_as_loc_support): New.
4944         (dwarf2out_default_as_locview_support): New.
4945         (output_asm_line_debug_info): Use option variables.
4946         (dwarf2out_maybe_output_loclist_view_pair): Likewise.
4947         (output_loc_list): Likewise.
4948         (add_high_low_attributes): Check option variables.
4949         Don't output entry view attribute in strict mode.
4950         (gen_inlined_subroutine_die): Check option variables.
4951         (dwarf2out_inline_entry): Likewise.
4952         (init_sections_and_labels): Likewise.
4953         (dwarf2out_early_finish): Likewise.
4954         (maybe_reset_location_view): New, from...
4955         (dwarf2out_var_location): ... here.  Call it.
4956         * debug.h (dwarf2out_default_as_loc_support): Declare.
4957         (dwarf2out_default_as_locview_support): Declare.
4958         * hooks.c (hook_int_rtx_insn_0): New.
4959         * hooks.h (hook_int_rtx_insn_0): Declare.
4960         * toplev.c (process_options): Take -gas-loc-support and
4961         -gas-locview-support from dwarf2out.  Enable
4962         -gvariable-location-views by default only with locview
4963         assembler support.  Enable -ginternal-reset-location-views by
4964         default only if the target defines the corresponding hook.
4965         Enable -ginline-points by default if location views are
4966         enabled; force it disabled if statement frontiers are
4967         disabled.
4968         * tree-inline.c (expand_call_inline): Check option variables.
4969         * tree-ssa-live.c (remove_unused_scope_block_p): Likewise.
4970
4971 2018-02-13  Richard Sandiford  <richard.sandiford@linaro.org>
4972
4973         PR tree-optimization/84321
4974         * tree-vrp.c (intersect_range_with_nonzero_bits): Fix VR_ANTI_RANGE
4975         handling.  Also check whether the anti-range contains any values
4976         that satisfy the mask; switch to a VR_RANGE if not.
4977
4978 2018-02-13  Paolo Bonzini  <bonzini@gnu.org>
4979
4980         PR sanitizer/84340
4981         * internal-fn.def (ASAN_CHECK, ASAN_MARK): Revert changes to fnspec.
4982
4983 2018-02-13  Martin Jambor  <mjambor@suse.cz>
4984
4985         PR c++/83990
4986         * ipa-param-manipulation.c (ipa_modify_call_arguments): Use location
4987         of call statements, also set location of a load to a temporary.
4988
4989 2018-02-13  Sebastian Perta  <sebastian.perta@renesas.com>
4990
4991         * config/rl78/rl78.c (add_vector_labels): New function.
4992         * config/rl78/rl78.c (rl78_handle_vector_attribute): New function.
4993         * config/rl78/rl78.c (rl78_start_function): Call add_vector_labels.
4994         * config/rl78/rl78.c (rl78_handle_func_attribute): Removed the assert
4995         which checks that no arguments are passed.
4996         * config/rl78/rl78.c (rl78_attribute_table): Add "vector" attribute.
4997         * doc/extend.texi: Documentation for the new attribute.
4998
4999 2018-02-13  Andreas Schwab  <schwab@suse.de>
5000
5001         * config/riscv/linux.h (CPP_SPEC): Define.
5002
5003 2018-02-13  Jakub Jelinek  <jakub@redhat.com>
5004
5005         PR target/84335
5006         * config/i386/i386.c (ix86_init_mmx_sse_builtins): Pass
5007         OPTION_MASK_ISA_AES | OPTION_MASK_ISA_SSE2 instead of
5008         OPTION_MASK_ISA_AES as first argument to def_builtin_const
5009         for AES builtins.  Pass OPTION_MASK_ISA_PCLMUL | OPTION_MASK_ISA_SSE2
5010         instead of OPTION_MASK_ISA_PCLMUL as first argument to
5011         def_builtin_const for __builtin_ia32_pclmulqdq128 builtin.
5012         * config/i386/wmmintrin.h: If __SSE2__ is not defined, enable it
5013         temporarily for AES and PCLMUL builtins.
5014
5015         PR tree-optimization/84339
5016         * gimple-fold.c (get_range_strlen): Set *FLEXP to true when handling
5017         ARRAY_REF where first operand is array_at_struct_end_p COMPONENT_REF.
5018         Formatting fixes.
5019
5020         PR middle-end/84309
5021         * match.pd (pow(C,x) -> exp(log(C)*x)): Optimize instead into
5022         exp2(log2(C)*x) if C is a power of 2 and c99 runtime is available.
5023         * generic-match-head.c (canonicalize_math_after_vectorization_p): New
5024         inline function.
5025         * gimple-match-head.c (canonicalize_math_after_vectorization_p): New
5026         inline function.
5027         * omp-simd-clone.h: New file.
5028         * omp-simd-clone.c: Include omp-simd-clone.h.
5029         (expand_simd_clones): No longer static.
5030         * tree-vect-patterns.c: Include fold-const-call.h, attribs.h,
5031         cgraph.h and omp-simd-clone.h.
5032         (vect_recog_pow_pattern): Optimize pow(C,x) to exp(log(C)*x).
5033         (vect_recog_widen_shift_pattern): Formatting fix.
5034         (vect_pattern_recog_1): Don't check optab for calls.
5035
5036         PR target/84336
5037         * config/i386/sse.md (<avx512>_vpermi2var<mode>3_mask): Force
5038         operands[2] into a REG before using gen_lowpart on it.
5039
5040 2018-02-12  Jeff Law  <law@redhat.com>
5041
5042         PR target/83760
5043         * config/sh/sh.c (find_barrier): Consider a sibling call
5044         a barrier as well.
5045
5046         * cse.c (try_back_substitute_reg): Move any REG_ARGS_SIZE note when
5047         successfully back substituting a reg.
5048
5049 2018-02-12  Richard Biener  <rguenther@suse.de>
5050
5051         PR tree-optimization/84037
5052         * tree-vect-slp.c (vect_analyze_slp_cost): Add visited
5053         parameter, move visited init to caller.
5054         (vect_slp_analyze_operations): Separate cost from validity
5055         check, initialize visited once for all instances.
5056         (vect_schedule_slp): Analyze map to CSE vectorized nodes once
5057         for all instances.
5058         * tree-vect-stmts.c (vect_model_simple_cost): Make early
5059         out an assert.
5060         (vect_model_promotion_demotion_cost): Likewise.
5061         (vectorizable_bswap): Guard cost modeling with !slp_node
5062         instead of !PURE_SLP_STMT to avoid double-counting on hybrid
5063         SLP stmts.
5064         (vectorizable_call): Likewise.
5065         (vectorizable_conversion): Likewise.
5066         (vectorizable_assignment): Likewise.
5067         (vectorizable_shift): Likewise.
5068         (vectorizable_operation): Likewise.
5069         (vectorizable_store): Likewise.
5070         (vectorizable_load): Likewise.
5071         (vectorizable_condition): Likewise.
5072         (vectorizable_comparison): Likewise.
5073
5074 2018-02-12  Paolo Bonzini  <bonzini@gnu.org>
5075
5076         PR sanitizer/84307
5077         * internal-fn.def (ASAN_CHECK): Fix fnspec to account for return value.
5078         (ASAN_MARK): Fix fnspec to account for return value, change pointer
5079         argument from 'R' to 'W' so that the pointed-to datum is clobbered.
5080
5081 2018-02-08  Jan Hubicka  <hubicka@ucw.cz>
5082
5083         PR middle-end/83665
5084         * params.def (inline-min-speedup): Increase from 8 to 15.
5085         (max-inline-insns-auto): Decrease from 40 to 30.
5086         * ipa-split.c (consider_split): Add some buffer for function to
5087         be considered inlining candidate.
5088         * invoke.texi (max-inline-insns-auto, inline-min-speedup): UPdate
5089         default values.
5090
5091 2018-02-12  Richard Biener  <rguenther@suse.de>
5092
5093         PR tree-optimization/84037
5094         * tree-vect-slp.c (vect_build_slp_tree_2): Try swapping the
5095         matched stmts if we cannot swap the non-matched ones.
5096
5097 2018-02-12  Olga Makhotina  <olga.makhotina@intel.com>
5098
5099         * config/i386/avx512fintrin.h (_mm_mask_scalef_round_sd,
5100         _mm_maskz_scalef_round_sd, _mm_mask_scalef_round_ss,
5101         _mm_maskz_scalef_round_ss): New intrinsics.
5102         (__builtin_ia32_scalefsd_round, __builtin_ia32_scalefss_round): Fix.
5103         * config/i386/i386-builtin.def (__builtin_ia32_scalefsd_round,
5104         __builtin_ia32_scalefss_round): Remove.
5105         (__builtin_ia32_scalefsd_mask_round,
5106         __builtin_ia32_scalefss_mask_round): New intrinsics.
5107         * config/i386/sse.md (vmscalef<mode><round_name>): Renamed to ...
5108         (vmscalef<mode><mask_scalar_name><round_scalar_name>): ... this.
5109         ((match_operand:VF_128 2 "<round_nimm_predicate>"
5110         "<round_constraint>")): Changed to ...
5111         ((match_operand:VF_128 2 "<round_scalar_nimm_predicate>"
5112         "<round_scalar_constraint>")): ... this.
5113         ("vscalef<ssescalarmodesuffix>\t{<round_op3>%2, %1, %0|
5114         %0, %1, %2<round_op3>}"): Changed to ...
5115         ("vscalef<ssescalarmodesuffix>\t{<round_scalar_mask_op3>%2, %1,
5116         %0<mask_scalar_operand3>|%0<mask_scalar_operand3>, %1,
5117         %2<round_scalar_mask_op3>}"): ... this.
5118         * config/i386/subst.md (round_scalar_nimm_predicate): New.
5119
5120 2018-02-12  Olga Makhotina  <olga.makhotina@intel.com>
5121
5122         * config/i386/avx512fintrin.h (_mm_mask_sqrt_round_sd)
5123         (_mm_maskz_sqrt_round_sd, _mm_mask_sqrt_round_ss)
5124         (_mm_maskz_sqrt_round_ss): New intrinsics.
5125         (__builtin_ia32_sqrtsd_round, __builtin_ia32_sqrtss_round): Remove.
5126         (__builtin_ia32_sqrtsd_mask_round)
5127         (__builtin_ia32_sqrtss_mask_round): New builtins.
5128         * config/i386/i386-builtin.def (__builtin_ia32_sqrtsd_round)
5129         (__builtin_ia32_sqrtss_round): Remove.
5130         (__builtin_ia32_sqrtsd_mask_round)
5131         (__builtin_ia32_sqrtss_mask_round): New builtins.
5132         * config/i386/sse.md (vmsqrt<mode>2<round_name>): Renamed to ...
5133         (vmsqrt<mode>2<mask_scalar_name><round_scalar_name>): ... this.
5134         ((match_operand:VF_128 1 "vector_operand"
5135         "xBm,<round_constraint>")): Changed to ...
5136         ((match_operand:VF_128 1 "vector_operand"
5137         "xBm,<round_scalar_constraint>")): ... this.
5138         (vsqrt<ssescalarmodesuffix>\t{<round_op3>%1, %2, %0|
5139         %0, %2, %<iptr>1<round_op3>}): Changed to ...
5140         (vsqrt<ssescalarmodesuffix>\t{<round_scalar_mask_op3>%1, %2,
5141         %0<mask_scalar_operand3>|%0<mask_scalar_operand3>, %2,
5142         %<iptr>1<round_scalar_mask_op3>}): ... this.
5143         ((set_attr "prefix" "<round_prefix>")): Changed to ...
5144         ((set_attr "prefix" "<round_scalar_prefix>")): ... this.
5145
5146 2018-02-11  Steven Munroe  <munroesj@gcc.gnu.org>
5147
5148         PR target/84266
5149         * config/rs6000/mmintrin.h (_mm_cmpeq_pi32 [_ARCH_PWR9]):
5150         Cast vec_cmpeq result to correct type.
5151         * config/rs6000/mmintrin.h (_mm_cmpgt_pi32 [_ARCH_PWR9]):
5152         Cast vec_cmpgt result to correct type.
5153
5154 2018-02-11  Alexandre Oliva  <aoliva@redhat.com>
5155
5156         * final.c (final_scan_insn_1): Renamed from...
5157         (final_scan_insn): ... this.  New wrapper, to recover
5158         seen from the outermost call in recursive ones.
5159         * config/sparc/sparc.c (output_return): Drop seen from call.
5160         (output_sibcall): Likewise.
5161         * config/visium/visium.c (output_branch): Likewise.
5162
5163 2018-02-10  John David Anglin  <danglin@gcc.gnu.org>
5164
5165         * config/pa/pa.c (hppa_profile_hook): Mark SYMBOL_REF for _mcount as
5166         function label.
5167
5168 2018-02-10  Alan Modra  <amodra@gmail.com>
5169
5170         PR target/84300
5171         * config/rs6000/rs6000.md (split_stack_return): Remove (use ..).
5172         Specify LR as an input.
5173
5174 2018-02-10  Jakub Jelinek  <jakub@redhat.com>
5175
5176         PR sanitizer/83987
5177         * omp-low.c (maybe_remove_omp_member_access_dummy_vars,
5178         remove_member_access_dummy_vars): New functions.
5179         (lower_omp_for, lower_omp_taskreg, lower_omp_target,
5180         lower_omp_1, execute_lower_omp): Use them.
5181
5182         PR rtl-optimization/84308
5183         * shrink-wrap.c (spread_components): Release todo vector.
5184
5185 2018-02-09  Vladimir Makarov  <vmakarov@redhat.com>
5186
5187         PR rtl-optimization/57193
5188         * ira-color.c (struct allocno_color_data): Add member
5189         conflict_allocno_hard_prefs.
5190         (update_conflict_allocno_hard_prefs): New.
5191         (bucket_allocno_compare_func): Add a preference based on
5192         conflict_allocno_hard_prefs.
5193         (push_allocno_to_stack): Update conflict_allocno_hard_prefs.
5194         (color_allocnos): Remove a dead code.  Initiate
5195         conflict_allocno_hard_prefs.  Call update_costs_from_prefs.
5196
5197 2018-02-09  Jakub Jelinek  <jakub@redhat.com>
5198
5199         PR target/84226
5200         * config/rs6000/vsx.md (p9_xxbrq_v16qi): Change input operand
5201         constraint from =wa to wa.  Avoid a subreg on the output operand,
5202         instead use a pseudo and subreg it in a move.
5203         (p9_xxbrd_<mode>): Changed to ...
5204         (p9_xxbrd_v2di): ... this insn, without VSX_D iterator.
5205         (p9_xxbrd_v2df): New expander.
5206         (p9_xxbrw_<mode>): Changed to ...
5207         (p9_xxbrw_v4si): ... this insn, without VSX_W iterator.
5208         (p9_xxbrw_v4sf): New expander.
5209
5210 2018-02-09  Sebastian Perta  <sebastian.perta@renesas.com>
5211
5212         * config/rx/rx.md (movsicc): Update expander to be matched by GCC.
5213
5214 2018-02-09  Peter Bergner  <bergner@vnet.ibm.com>
5215
5216         PR target/83926
5217         * config/rs6000/vsx.md (vsx_mul_v2di): Handle generating a 64-bit
5218         multiply in 32-bit mode.
5219         (vsx_div_v2di): Handle generating a 64-bit signed divide in 32-bit mode.
5220         (vsx_udiv_v2di): Handle generating a 64-bit unsigned divide in 32-bit
5221         mode.
5222
5223 2018-02-09  Sebastian Perta  <sebastian.perta@renesas.com>
5224
5225         * config/rx/constraints.md (CALL_OP_SYMBOL_REF): Added new constraint
5226         to allow or block "symbol_ref" depending on the value of TARGET_JSR.
5227         * config/rx/rx.md (call_internal): Use CALL_OP_SYMBOL_REF.
5228         * config/rx/rx.md (call_value_internal): Use CALL_OP_SYMBOL_REF.
5229
5230 2018-02-09  Pierre-Marie de Rodat  <derodat@adacore.com>
5231
5232         PR lto/84213
5233         * dwarf2out.c (is_trivial_indirect_ref): New function.
5234         (dwarf2out_late_global_decl): Do not generate a location
5235         attribute for variables that have a non-trivial DECL_VALUE_EXPR
5236         and that are not defined in the current unit.
5237
5238 2018-02-09  Eric Botcazou  <ebotcazou@adacore.com>
5239
5240         * optabs.c (prepare_cmp_insn): Try harder to emit a direct comparison
5241         instead of a libcall for UNORDERED.
5242
5243 2018-02-09  Tamar Christina  <tamar.christina@arm.com>
5244
5245         PR target/82641
5246         * config/arm/arm-c.c (arm_cpu_builtins): Un-define __ARM_FEATURE_LDREX,
5247         __ARM_ARCH_PROFILE, __ARM_ARCH_ISA_THUMB, __ARM_FP and __ARM_NEON_FP.
5248
5249 2018-02-09  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
5250
5251         PR target/PR84295
5252         * config/s390/s390.c (s390_set_current_function): Invoke
5253         s390_indirect_branch_settings also if fndecl didn't change.
5254
5255 2018-02-09  Alexandre Oliva  <aoliva@redhat.com>
5256
5257         * config/rs6000/rs6000.md (blockage): Set length to zero.
5258
5259 2018-02-09  Eric Botcazou  <ebotcazou@adacore.com>
5260
5261         * expr.c (optimize_bitfield_assignment_op): Remove obsolete assertion.
5262
5263 2018-02-09  Jakub Jelinek  <jakub@redhat.com>
5264
5265         PR sanitizer/84285
5266         * gcc.c (STATIC_LIBASAN_LIBS, STATIC_LIBTSAN_LIBS,
5267         STATIC_LIBLSAN_LIBS, STATIC_LIBUBSAN_LIBS): Handle -static like
5268         -static-lib*san.
5269
5270         PR debug/84252
5271         * var-tracking.c (vt_add_function_parameter): Punt for non-onepart
5272         PARALLEL incoming that failed vt_get_decl_and_offset check.
5273
5274         PR middle-end/84237
5275         * output.h (bss_initializer_p): Add NAMED argument, defaulted to false.
5276         * varasm.c (bss_initializer_p): Add NAMED argument, if true, ignore
5277         TREE_READONLY bit.
5278         (get_variable_section): For decls in named .bss* sections pass true as
5279         second argument to bss_initializer_p.
5280
5281 2018-02-09  Marek Polacek  <polacek@redhat.com>
5282             Jakub Jelinek  <jakub@redhat.com>
5283
5284         PR c++/83659
5285         * fold-const.c (fold_indirect_ref_1): Use VECTOR_TYPE_P macro.
5286         Formatting fixes.  Verify first that tree_fits_poly_int64_p (op01).
5287         Sync some changes from cxx_fold_indirect_ref.
5288
5289 2018-02-09  Alexandre Oliva  <aoliva@redhat.com>
5290
5291         * cfgexpand.c (expand_gimple_basic_block): Handle inline entry
5292         markers.
5293         * dwarf2out.c (dwarf2_debug_hooks): Enable inline_entry hook.
5294         (BLOCK_INLINE_ENTRY_LABEL): New.
5295         (dwarf2out_var_location): Disregard inline entry markers.
5296         (inline_entry_data): New struct.
5297         (inline_entry_data_hasher): New hashtable type.
5298         (inline_entry_data_hasher::hash): New.
5299         (inline_entry_data_hasher::equal): New.
5300         (inline_entry_data_table): New variable.
5301         (add_high_low_attributes): Add DW_AT_entry_pc and
5302         DW_AT_GNU_entry_view attributes if a pending entry is found
5303         in inline_entry_data_table.  Add old entry_pc attribute only
5304         if debug nonbinding markers are disabled.
5305         (gen_inlined_subroutine_die): Set BLOCK_DIE if nonbinding
5306         markers are enabled.
5307         (block_within_block_p, dwarf2out_inline_entry): New.
5308         (dwarf2out_finish): Check that no entries remained in
5309         inline_entry_data_table.
5310         * final.c (reemit_insn_block_notes): Handle inline entry notes.
5311         (final_scan_insn, notice_source_line): Likewise.
5312         (rest_of_clean_state): Skip inline entry markers.
5313         * gimple-pretty-print.c (dump_gimple_debug): Handle inline entry
5314         markers.
5315         * gimple.c (gimple_build_debug_inline_entry): New.
5316         * gimple.h (enum gimple_debug_subcode): Add
5317         GIMPLE_DEBUG_INLINE_ENTRY.
5318         (gimple_build_debug_inline_entry): Declare.
5319         (gimple_debug_inline_entry_p): New.
5320         (gimple_debug_nonbind_marker_p): Adjust.
5321         * insn-notes.def (INLINE_ENTRY): New.
5322         * print-rtl.c (rtx_writer::print_rtx_operand_code_0): Handle
5323         inline entry marker notes.
5324         (print_insn): Likewise.
5325         * rtl.h (NOTE_MARKER_P): Add INLINE_ENTRY support.
5326         (INSN_DEBUG_MARKER_KIND): Likewise.
5327         (GEN_RTX_DEBUG_MARKER_INLINE_ENTRY_PAT): New.
5328         * tree-inline.c (expand_call_inline): Build and insert
5329         debug_inline_entry stmt.
5330         * tree-ssa-live.c (remove_unused_scope_block_p): Preserve
5331         inline entry blocks early, if nonbind markers are enabled.
5332         (dump_scope_block): Dump fragment info.
5333         * var-tracking.c (reemit_marker_as_note): Handle inline entry note.
5334         * doc/gimple.texi (gimple_debug_inline_entry_p): New.
5335         (gimple_build_debug_inline_entry): New.
5336         * doc/invoke.texi (gstatement-frontiers, gno-statement-frontiers):
5337         Enable/disable inline entry points too.
5338         * doc/rtl.texi (NOTE_INSN_INLINE_ENTRY): New.
5339         (DEBUG_INSN): Describe inline entry markers.
5340
5341         * common.opt (gvariable-location-views): New.
5342         (gvariable-location-views=incompat5): New.
5343         * config.in: Rebuilt.
5344         * configure: Rebuilt.
5345         * configure.ac: Test assembler for view support.
5346         * dwarf2asm.c (dw2_asm_output_symname_uleb128): New.
5347         * dwarf2asm.h (dw2_asm_output_symname_uleb128): Declare.
5348         * dwarf2out.c (var_loc_view): New typedef.
5349         (struct dw_loc_list_struct): Add vl_symbol, vbegin, vend.
5350         (dwarf2out_locviews_in_attribute): New.
5351         (dwarf2out_locviews_in_loclist): New.
5352         (dw_val_equal_p): Compare val_view_list of dw_val_class_view_lists.
5353         (enum dw_line_info_opcode): Add LI_adv_address.
5354         (struct dw_line_info_table): Add view.
5355         (RESET_NEXT_VIEW, RESETTING_VIEW_P): New macros.
5356         (DWARF2_ASM_VIEW_DEBUG_INFO): Define default.
5357         (zero_view_p): New variable.
5358         (ZERO_VIEW_P): New macro.
5359         (output_asm_line_debug_info): New.
5360         (struct var_loc_node): Add view.
5361         (add_AT_view_list, AT_loc_list): New.
5362         (add_var_loc_to_decl): Add view param.  Test it against last.
5363         (new_loc_list): Add view params.  Record them.
5364         (AT_loc_list_ptr): Handle loc and view lists.
5365         (view_list_to_loc_list_val_node): New.
5366         (print_dw_val): Handle dw_val_class_view_list.
5367         (size_of_die): Likewise.
5368         (value_format): Likewise.
5369         (loc_list_has_views): New.
5370         (gen_llsym): Set vl_symbol too.
5371         (maybe_gen_llsym, skip_loc_list_entry): New.
5372         (dwarf2out_maybe_output_loclist_view_pair): New.
5373         (output_loc_list): Output view list or entries too.
5374         (output_view_list_offset): New.
5375         (output_die): Handle dw_val_class_view_list.
5376         (output_dwarf_version): New.
5377         (output_compilation_unit_header): Use it.
5378         (output_skeleton_debug_sections): Likewise.
5379         (output_rnglists, output_line_info): Likewise.
5380         (output_pubnames, output_aranges): Update version comments.
5381         (output_one_line_info_table): Output view numbers in asm comments.
5382         (dw_loc_list): Determine current endview, pass it to new_loc_list.
5383         Call maybe_gen_llsym.
5384         (loc_list_from_tree_1): Adjust.
5385         (add_AT_location_description): Create view list attribute if
5386         needed, check it's absent otherwise.
5387         (convert_cfa_to_fb_loc_list): Adjust.
5388         (maybe_emit_file): Call output_asm_line_debug_info for test.
5389         (dwarf2out_var_location): Reset views as needed.  Precompute
5390         add_var_loc_to_decl args.  Call get_attr_min_length only if we have the
5391         attribute.  Set view.
5392         (new_line_info_table): Reset next view.
5393         (set_cur_line_info_table): Call output_asm_line_debug_info for test.
5394         (dwarf2out_source_line): Likewise.  Output view resets and labels to
5395         the assembler, or select appropriate line info opcodes.
5396         (prune_unused_types_walk_attribs): Handle dw_val_class_view_list.
5397         (optimize_string_length): Catch it.  Adjust.
5398         (resolve_addr): Copy vl_symbol along with ll_symbol.  Handle
5399         dw_val_class_view_list, and remove it if no longer needed.
5400         (hash_loc_list): Hash view numbers.
5401         (loc_list_hasher::equal): Compare them.
5402         (optimize_location_lists): Check whether a view list symbol is
5403         needed, and whether the locview attribute is present, and
5404         whether they match.  Remove the locview attribute if no longer
5405         needed.
5406         (index_location_lists): Call skip_loc_list_entry for test.
5407         (dwarf2out_finish): Call output_asm_line_debug_info for test.
5408         Use output_dwarf_version.
5409         * dwarf2out.h (enum dw_val_class): Add dw_val_class_view_list.
5410         (struct dw_val_node): Add val_view_list.
5411         * final.c (SEEN_NEXT_VIEW): New.
5412         (set_next_view_needed): New.
5413         (clear_next_view_needed): New.
5414         (maybe_output_next_view): New.
5415         (final_start_function): Rename to...
5416         (final_start_function_1): ... this.  Take pointer to FIRST,
5417         add SEEN parameter.  Emit param bindings in the initial view.
5418         (final_start_function): Reintroduce SEEN-less interface.
5419         (final): Rename to...
5420         (final_1): ... this.  Take SEEN parameter.  Output final pending
5421         next view at the end.
5422         (final): Reintroduce seen-less interface.
5423         (final_scan_insn): Output pending next view before switching
5424         sections or ending a block.  Mark the next view as needed when
5425         outputting variable locations.  Notify debug backend of section
5426         changes, and of location view changes.
5427         (rest_of_handle_final): Adjust.
5428         * toplev.c (process_options): Autodetect value for debug variable
5429         location views option.  Warn on incompat5 without -gdwarf-5.
5430         * doc/invoke.texi (gvariable-location-views): New.
5431         (gvariable-location-views=incompat5): New.
5432         (gno-variable-location-views): New.
5433
5434 2018-02-08  David Malcolm  <dmalcolm@redhat.com>
5435
5436         PR tree-optimization/84136
5437         * tree-cfg.c (find_taken_edge_computed_goto): Remove assertion
5438         that the result of find_edge is non-NULL.
5439
5440 2018-02-08  Sergey Shalnov  <sergey.shalnov@intel.com>
5441
5442         PR target/83008
5443         * config/i386/x86-tune-costs.h (skylake_cost): Fix cost of
5444         storing integer register in SImode.  Fix cost of 256 and 512
5445         byte aligned SSE register store.
5446
5447 2018-02-08  Sergey Shalnov  <sergey.shalnov@intel.com>
5448
5449         * config/i386/i386.c (ix86_multiplication_cost): Fix
5450         multiplication cost for TARGET_AVX512DQ.
5451
5452 2018-02-08  Marek Polacek  <polacek@redhat.com>
5453
5454         PR tree-optimization/84238
5455         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Verify the result of
5456         get_range_strlen.
5457
5458 2018-02-08  Richard Sandiford  <richard.sandiford@linaro.org>
5459
5460         PR tree-optimization/84265
5461         * tree-vect-stmts.c (vectorizable_store): Don't treat
5462         VMAT_CONTIGUOUS accesses as grouped.
5463         (vectorizable_load): Likewise.
5464
5465 2018-02-08  Richard Sandiford  <richard.sandiford@linaro.org>
5466
5467         PR tree-optimization/81635
5468         * wide-int.h (wi::round_down_for_mask, wi::round_up_for_mask): Declare.
5469         * wide-int.cc (wi::round_down_for_mask, wi::round_up_for_mask)
5470         (test_round_for_mask): New functions.
5471         (wide_int_cc_tests): Call test_round_for_mask.
5472         * tree-vrp.h (intersect_range_with_nonzero_bits): Declare.
5473         * tree-vrp.c (intersect_range_with_nonzero_bits): New function.
5474         * tree-data-ref.c (split_constant_offset_1): Use it to refine the
5475         range returned by get_range_info.
5476
5477 2018-02-08  Jan Hubicka  <hubicka@ucw.cz>
5478
5479         PR ipa/81360
5480         * cgraph.h (symtab_node::output_to_lto_symbol_table_p): Declare
5481         * symtab.c: Include builtins.h
5482         (symtab_node::output_to_lto_symbol_table_p): Move here
5483         from lto-streamer-out.c:output_symbol_p.
5484         * lto-streamer-out.c (write_symbol): Turn early exit to assert.
5485         (output_symbol_p): Move all logic to symtab.c
5486         (produce_symtab): Update.
5487
5488 2018-02-08  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
5489
5490         * config/s390/s390-opts.h (enum indirect_branch): Define.
5491         * config/s390/s390-protos.h (s390_return_addr_from_memory)
5492         (s390_indirect_branch_via_thunk)
5493         (s390_indirect_branch_via_inline_thunk): Add function prototypes.
5494         (enum s390_indirect_branch_type): Define.
5495         * config/s390/s390.c (struct s390_frame_layout, struct
5496         machine_function): Remove.
5497         (indirect_branch_prez10thunk_mask, indirect_branch_z10thunk_mask)
5498         (indirect_branch_table_label_no, indirect_branch_table_name):
5499         Define variables.
5500         (INDIRECT_BRANCH_NUM_OPTIONS): Define macro.
5501         (enum s390_indirect_branch_option): Define.
5502         (s390_return_addr_from_memory): New function.
5503         (s390_handle_string_attribute): New function.
5504         (s390_attribute_table): Add new attribute handler.
5505         (s390_execute_label): Handle UNSPEC_EXECUTE_JUMP patterns.
5506         (s390_indirect_branch_via_thunk): New function.
5507         (s390_indirect_branch_via_inline_thunk): New function.
5508         (s390_function_ok_for_sibcall): When jumping via thunk disallow
5509         sibling call optimization for non z10 compiles.
5510         (s390_emit_call): Force indirect branch target to be a single
5511         register.  Add r1 clobber for non-z10 compiles.
5512         (s390_emit_epilogue): Emit return jump via return_use expander.
5513         (s390_reorg): Handle JUMP_INSNs as execute targets.
5514         (s390_option_override_internal): Perform validity checks for the
5515         new command line options.
5516         (s390_indirect_branch_attrvalue): New function.
5517         (s390_indirect_branch_settings): New function.
5518         (s390_set_current_function): Invoke s390_indirect_branch_settings.
5519         (s390_output_indirect_thunk_function):  New function.
5520         (s390_code_end): Implement target hook.
5521         (s390_case_values_threshold): Implement target hook.
5522         (TARGET_ASM_CODE_END, TARGET_CASE_VALUES_THRESHOLD): Define target
5523         macros.
5524         * config/s390/s390.h (struct s390_frame_layout)
5525         (struct machine_function): Move here from s390.c.
5526         (TARGET_INDIRECT_BRANCH_NOBP_RET)
5527         (TARGET_INDIRECT_BRANCH_NOBP_JUMP)
5528         (TARGET_INDIRECT_BRANCH_NOBP_JUMP_THUNK)
5529         (TARGET_INDIRECT_BRANCH_NOBP_JUMP_INLINE_THUNK)
5530         (TARGET_INDIRECT_BRANCH_NOBP_CALL)
5531         (TARGET_DEFAULT_INDIRECT_BRANCH_TABLE)
5532         (TARGET_INDIRECT_BRANCH_THUNK_NAME_EXRL)
5533         (TARGET_INDIRECT_BRANCH_THUNK_NAME_EX)
5534         (TARGET_INDIRECT_BRANCH_TABLE): Define macros.
5535         * config/s390/s390.md (UNSPEC_EXECUTE_JUMP)
5536         (INDIRECT_BRANCH_THUNK_REGNUM): Define constants.
5537         (mnemonic attribute): Add values which aren't recognized
5538         automatically.
5539         ("*cjump_long", "*icjump_long", "*basr", "*basr_r"): Disable
5540         pattern for branch conversion.  Fix mnemonic attribute.
5541         ("*c<code>", "*sibcall_br", "*sibcall_value_br", "*return"): Emit
5542         indirect branch via thunk if requested.
5543         ("indirect_jump", "<code>"): Expand patterns for branch conversion.
5544         ("*indirect_jump"): Disable for branch conversion using out of
5545         line thunks.
5546         ("indirect_jump_via_thunk<mode>_z10")
5547         ("indirect_jump_via_thunk<mode>")
5548         ("indirect_jump_via_inlinethunk<mode>_z10")
5549         ("indirect_jump_via_inlinethunk<mode>", "*casesi_jump")
5550         ("casesi_jump_via_thunk<mode>_z10", "casesi_jump_via_thunk<mode>")
5551         ("casesi_jump_via_inlinethunk<mode>_z10")
5552         ("casesi_jump_via_inlinethunk<mode>", "*basr_via_thunk<mode>_z10")
5553         ("*basr_via_thunk<mode>", "*basr_r_via_thunk_z10")
5554         ("*basr_r_via_thunk", "return<mode>_prez10"): New pattern.
5555         ("*indirect2_jump"): Disable for branch conversion.
5556         ("casesi_jump"): Turn into expander and expand patterns for branch
5557         conversion.
5558         ("return_use"): New expander.
5559         ("*return"): Emit return via thunk and rename it to ...
5560         ("*return<mode>"): ... this one.
5561         * config/s390/s390.opt: Add new options and and enum for the
5562         option values.
5563
5564 2018-02-08  Richard Sandiford  <richard.sandiford@linaro.org>
5565
5566         * lra-constraints.c (match_reload): Unconditionally use
5567         gen_lowpart_SUBREG, rather than selecting between that
5568         and equivalent gen_rtx_SUBREG code.
5569
5570 2018-02-08  Richard Biener  <rguenther@suse.de>
5571
5572         PR tree-optimization/84233
5573         * tree-ssa-phiprop.c (propagate_with_phi): Use separate
5574         changed flag instead of boguously re-using phi_inserted.
5575
5576 2018-02-08  Martin Jambor  <mjambor@suse.cz>
5577
5578         * hsa-gen.c (get_symbol_for_decl): Set program allocation for
5579         static local variables.
5580
5581 2018-02-08  Richard Biener  <rguenther@suse.de>
5582
5583         PR tree-optimization/84278
5584         * tree-vect-stmts.c (vectorizable_store): When looking for
5585         smaller vector types to perform grouped strided loads/stores
5586         make sure the mode is supported by the target.
5587         (vectorizable_load): Likewise.
5588
5589 2018-02-08  Wilco Dijkstra  <wdijkstr@arm.com>
5590
5591         * config/aarch64/aarch64.c (aarch64_components_for_bb):
5592         Increase LDP/STP opportunities by adding adjacent callee-saves.
5593
5594 2018-02-08  Wilco Dijkstra  <wdijkstr@arm.com>
5595
5596         PR rtl-optimization/84068
5597         PR rtl-optimization/83459
5598         * haifa-sched.c (rank_for_schedule): Fix SCHED_PRESSURE_MODEL sorting.
5599
5600 2018-02-08  Aldy Hernandez  <aldyh@redhat.com>
5601
5602         PR tree-optimization/84224
5603         * gimple-ssa-warn-alloca.c (pass_walloca::execute): Remove assert.
5604         * calls.c (gimple_alloca_call_p): Only return TRUE when we have
5605         non-zero arguments.
5606
5607 2018-02-07  Iain Sandoe  <iain@codesourcery.com>
5608
5609         PR target/84113
5610         * config/rs6000/altivec.md (*restore_world): Remove LR use.
5611         * config/rs6000/predicates.md (restore_world_operation): Adjust op
5612         count, remove one USE.
5613
5614 2018-02-07  Michael Meissner  <meissner@linux.vnet.ibm.com>
5615
5616         * doc/install.texi (Configuration): Document the
5617         --with-long-double-format={ibm,ieee} PowerPC configuration
5618         options.
5619
5620         PR target/84154
5621         * config/rs6000/rs6000.md (fix_trunc<SFDF:mode><QHI:mode>2):
5622         Convert from define_expand to be define_insn_and_split.  Rework
5623         float/double/_Float128 conversions to QI/HI/SImode to work with
5624         both ISA 2.07 (power8) or ISA 3.0 (power9).  Fix regression where
5625         conversions to QI/HImode types did a store and then a load to
5626         truncate the value.  For conversions to VSX registers, don't split
5627         the insn, instead emit the code directly.  Use the code iterator
5628         any_fix to combine signed and unsigned conversions.
5629         (fix<uns>_trunc<SFDF:mode>si2_p8): Likewise.
5630         (fixuns_trunc<SFDF:mode><QHI:mode>2): Likewise.
5631         (fix_trunc<IEEE128:mode><QHI:mode>2): Likewise.
5632         (fix<uns>_trunc<SFDF:mode><QHI:mode>2): Likewise.
5633         (fix_<mode>di2_hw): Likewise.
5634         (fixuns_<mode>di2_hw): Likewise.
5635         (fix_<mode>si2_hw): Likewise.
5636         (fixuns_<mode>si2_hw): Likewise.
5637         (fix<uns>_<IEEE128:mode><SDI:mode>2_hw): Likewise.
5638         (fix<uns>_trunc<IEEE128:mode><QHI:mode>2): Likewise.
5639         (fctiw<u>z_<mode>_smallint): Rename fctiw<u>z_<mode>_smallint to
5640         fix<uns>_trunc<SFDF:mode>si2_p8.
5641         (fix_trunc<SFDF:mode><QHI:mode>2_internal): Delete, no longer
5642         used.
5643         (fixuns_trunc<SFDF:mode><QHI:mode>2_internal): Likewise.
5644         (fix<uns>_<mode>_mem): Likewise.
5645         (fctiw<u>z_<mode>_mem): Likewise.
5646         (fix<uns>_<mode>_mem): Likewise.
5647         (fix<uns>_trunc<SFDF:mode><QHSI:mode>2_mem): On ISA 3.0, prevent
5648         the register allocator from doing a direct move to the GPRs to do
5649         a store, and instead use the ISA 3.0 store byte/half-word from
5650         vector register instruction.  For IEEE 128-bit floating point,
5651         also optimize stores of 32-bit ints.
5652         (fix<uns>_trunc<IEEE128:mode><QHSI:mode>2_mem): Likewise.
5653
5654 2018-02-07  Alan Hayward  <alan.hayward@arm.com>
5655
5656         * genextract.c (push_pathstr_operand): New function to support
5657         [a-zA-Z].
5658         (walk_rtx): Call push_pathstr_operand.
5659         (print_path): Support [a-zA-Z].
5660
5661 2018-02-07  Richard Biener  <rguenther@suse.de>
5662
5663         PR tree-optimization/84037
5664         * tree-vectorizer.h (struct _loop_vec_info): Add ivexpr_map member.
5665         (cse_and_gimplify_to_preheader): Declare.
5666         (vect_get_place_in_interleaving_chain): Likewise.
5667         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
5668         ivexpr_map.
5669         (_loop_vec_info::~_loop_vec_info): Delete it.
5670         (cse_and_gimplify_to_preheader): New function.
5671         * tree-vect-slp.c (vect_get_place_in_interleaving_chain): Export.
5672         * tree-vect-stmts.c (vectorizable_store): CSE base and steps.
5673         (vectorizable_load): Likewise.  For grouped stores always base
5674         the IV on the first element.
5675         * tree-vect-loop-manip.c (vect_loop_versioning): Unshare versioning
5676         condition before gimplifying.
5677
5678 2018-02-07  Jakub Jelinek  <jakub@redhat.com>
5679
5680         * tree-eh.c (operation_could_trap_helper_p): Ignore honor_trapv for
5681         *DIV_EXPR and *MOD_EXPR.
5682
5683 2018-02-07  H.J. Lu  <hongjiu.lu@intel.com>
5684
5685         PR target/84248
5686         * config/i386/i386.c (ix86_option_override_internal): Mask out
5687         the CF_SET bit when checking -fcf-protection.
5688
5689 2018-02-07  Tom de Vries  <tom@codesourcery.com>
5690
5691         PR libgomp/84217
5692         * omp-expand.c (expand_oacc_collapse_init): Ensure diff_type is large
5693         enough.
5694
5695 2018-02-07  Richard Biener  <rguenther@suse.de>
5696
5697         PR tree-optimization/84204
5698         * tree-chrec.c (chrec_fold_plus_1): Remove size limiting in
5699         this place.
5700
5701         PR tree-optimization/84205
5702         * graphite-isl-ast-to-gimple.c (binary_op_to_tree): Also
5703         special-case isl_ast_op_zdiv_r.
5704
5705         PR tree-optimization/84223
5706         * graphite-scop-detection.c (gather_bbs::before_dom_children):
5707         Only add conditions from within the region.
5708         (gather_bbs::after_dom_children): Adjust.
5709
5710 2018-02-07  Georg-Johann Lay  <avr@gjlay.de>
5711
5712         PR target/84209
5713         * config/avr/avr.h (GENERAL_REGNO_P, GENERAL_REG_P): New macros.
5714         * config/avr/avr.md: Only post-reload split REG-REG moves if
5715         either register is GENERAL_REG_P.
5716
5717 2018-02-07  Jakub Jelinek  <jakub@redhat.com>
5718
5719         PR tree-optimization/84235
5720         * tree-ssa-scopedtables.c
5721         (avail_exprs_stack::simplify_binary_operation): Fir MINUS_EXPR, punt
5722         if the subtraction is performed in floating point type where NaNs are
5723         honored.  For *DIV_EXPR, punt for ALL_FRACT_MODE_Ps where we can't
5724         build 1.  Formatting fix.
5725
5726 2018-02-06  Jakub Jelinek  <jakub@redhat.com>
5727
5728         PR target/84146
5729         * config/i386/i386.c (rest_of_insert_endbranch): Only skip
5730         NOTE_INSN_CALL_ARG_LOCATION after a call, not anything else,
5731         and skip it regardless of bb boundaries.  Use CALL_P macro,
5732         don't test INSN_P (insn) together with CALL_P or JUMP_P check
5733         unnecessarily, formatting fix.
5734
5735 2018-02-06  Michael Collison  <michael.collison@arm.com>
5736
5737         * config/arm/thumb2.md:
5738         (*thumb2_mov_negscc): Split only if TARGET_THUMB2 && !arm_restrict_it.
5739         (*thumb_mov_notscc): Ditto.
5740
5741 2018-02-06  Michael Meissner  <meissner@linux.vnet.ibm.com>
5742
5743         PR target/84154
5744         * config/rs6000/rs6000.md (su code attribute): Use "u" for
5745         unsigned_fix, not "s".
5746
5747 2018-02-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
5748
5749         * configure.ac (gcc_fn_eh_frame_ro): New function.
5750         (gcc_cv_as_cfi_directive): Check both 32 and 64-bit assembler for
5751         correct .eh_frame permissions.
5752         * configure: Regenerate.
5753
5754 2018-02-06  Andrew Jenner  <andrew@codeourcery.com>
5755
5756         * doc/invoke.texi: Add section for the PowerPC SPE backend. Remove
5757         irrelevant options.
5758
5759 2018-02-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
5760
5761         * config/rs6000/rs6000.c (rs6000_option_override_internal):
5762         Display warning message for -mno-speculate-indirect-jumps.
5763
5764 2018-02-06  Andrew Jenner  <andrew@codesourcery.com>
5765
5766         * config/powerpcspe/powerpcspe.opt: (msimple-fpu, mfpu) Add
5767         Undocumented.
5768         * config/powerpcspe/sysv4.opt (mbit-align): Likewise.
5769
5770 2018-02-06  Aldy Hernandez  <aldyh@redhat.com>
5771
5772         PR tree-optimization/84225
5773         * tree-eh.c (find_trapping_overflow): Only call
5774         operation_no_trapping_overflow when ANY_INTEGRAL_TYPE_P.
5775
5776 2018-02-06  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
5777
5778         PR target/84145
5779         * config/i386/i386.c: Reimplement the check of possible options
5780         -mibt/-mshstk conbination. Change error messages.
5781         * doc/invoke.texi: Fix a typo: remove extra '='.
5782
5783 2018-02-06  Marek Polacek  <polacek@redhat.com>
5784
5785         PR tree-optimization/84228
5786         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Skip debug statements.
5787
5788 2018-02-06  Tamar Christina  <tamar.christina@arm.com>
5789
5790         PR target/82641
5791         * config/arm/arm.c (arm_print_asm_arch_directives): Record already
5792         emitted arch directives.
5793         * config/arm/arm-c.c (arm_cpu_builtins): Undefine __ARM_ARCH and
5794         __ARM_FEATURE_COPROC before changing architectures.
5795
5796 2018-02-06  Richard Biener  <rguenther@suse.de>
5797
5798         * config/i386/i386.c (print_reg): Fix typo.
5799         (ix86_loop_unroll_adjust): Do not unroll beyond the original nunroll.
5800
5801 2018-02-06  Eric Botcazou  <ebotcazou@adacore.com>
5802
5803         * configure: Regenerate.
5804
5805 2018-02-05  Martin Sebor  <msebor@redhat.com>
5806
5807         PR tree-optimization/83369
5808         * tree-ssa-ccp.c (pass_post_ipa_warn::execute): Use %G to print
5809         inlining context.
5810
5811 2018-02-05  Martin Liska  <mliska@suse.cz>
5812
5813         * doc/invoke.texi: Cherry-pick upstream r323995.
5814
5815 2018-02-05  Richard Sandiford  <richard.sandiford@linaro.org>
5816
5817         * ira.c (ira_init_register_move_cost): Adjust comment.
5818
5819 2018-02-05  Martin Liska  <mliska@suse.cz>
5820
5821         PR gcov-profile/84137
5822         * doc/gcov.texi: Fix typo in documentation.
5823
5824 2018-02-05  Martin Liska  <mliska@suse.cz>
5825
5826         PR gcov-profile/83879
5827         * doc/gcov.texi: Document necessity of --dynamic-list-data when
5828         using dlopen functionality.
5829
5830 2018-02-05  Olga Makhotina  <olga.makhotina@intel.com>
5831
5832         * config/i386/avx512dqintrin.h (_mm_mask_range_sd, _mm_maskz_range_sd,
5833         _mm_mask_range_round_sd, _mm_maskz_range_round_sd, _mm_mask_range_ss,
5834         _mm_maskz_range_ss, _mm_mask_range_round_ss,
5835         _mm_maskz_range_round_ss): New intrinsics.
5836         (__builtin_ia32_rangesd128_round)
5837         (__builtin_ia32_rangess128_round): Remove.
5838         (__builtin_ia32_rangesd128_mask_round,
5839         __builtin_ia32_rangess128_mask_round): New builtins.
5840         * config/i386/i386-builtin.def (__builtin_ia32_rangesd128_round,
5841         __builtin_ia32_rangess128_round): Remove.
5842         (__builtin_ia32_rangesd128_mask_round,
5843         __builtin_ia32_rangess128_mask_round): New builtins.
5844         * config/i386/sse.md (ranges<mode><round_saeonly_name>): Renamed to ...
5845         (ranges<mode><mask_scalar_name><round_saeonly_scalar_name>): ... this.
5846         ((match_operand:VF_128 2 "<round_saeonly_nimm_predicate>"
5847         "<round_saeonly_constraint>")): Changed to ...
5848         ((match_operand:VF_128 2 "<round_saeonly_scalar_nimm_predicate>"
5849         "<round_saeonly_scalar_constraint>")): ... this.
5850         ("vrange<ssescalarmodesuffix>\t{%3, <round_saeonly_op4>%2, %1, %0|
5851         %0, %1, %2<round_saeonly_op4>, %3}"): Changed to ...
5852         ("vrange<ssescalarmodesuffix>\t{%3, <round_saeonly_scalar_mask_op4>%2,
5853         %1, %0<mask_scalar_operand4>|%0<mask_scalar_operand4>, %1,
5854         %2<round_saeonly_scalar_mask_op4>, %3}"): ... this.
5855
5856 2018-02-02  Andrew Jenner  <andrew@codesourcery.com>
5857
5858         * config/powerpcspe/powerpcspe.opt: Add Undocumented to irrelevant
5859         options.
5860         * config/powerpcspe/powerpcspe-tables.opt (rs6000_cpu_opt_value):
5861         Remove all values except native, 8540 and 8548.
5862
5863 2018-02-02  H.J. Lu  <hongjiu.lu@intel.com>
5864
5865         * config/i386/i386.c (ix86_output_function_return): Pass
5866         INVALID_REGNUM, instead of -1, as invalid register number to
5867         indirect_thunk_name and output_indirect_thunk.
5868
5869 2018-02-02  Julia Koval  <julia.koval@intel.com>
5870
5871         * config.gcc: Add -march=icelake.
5872         * config/i386/driver-i386.c (host_detect_local_cpu): Detect icelake.
5873         * config/i386/i386-c.c (ix86_target_macros_internal): Handle icelake.
5874         * config/i386/i386.c (processor_costs): Add m_ICELAKE.
5875         (PTA_ICELAKE, PTA_AVX512VNNI, PTA_GFNI, PTA_VAES, PTA_AVX512VBMI2,
5876         PTA_VPCLMULQDQ, PTA_RDPID, PTA_AVX512BITALG): New.
5877         (processor_target_table): Add icelake.
5878         (ix86_option_override_internal): Handle new PTAs.
5879         (get_builtin_code_for_version): Handle icelake.
5880         (M_INTEL_COREI7_ICELAKE): New.
5881         (fold_builtin_cpu): Handle icelake.
5882         * config/i386/i386.h (TARGET_ICELAKE, PROCESSOR_ICELAKE): New.
5883         * doc/invoke.texi: Add -march=icelake.
5884
5885 2018-02-02  Julia Koval  <julia.koval@intel.com>
5886
5887         * config/i386/i386.c (ix86_option_override_internal): Change flags type
5888         to wide_int_bitmask.
5889         * wide-int-bitmask.h: New.
5890
5891 2018-02-02  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
5892
5893         PR target/84066
5894         * config/i386/i386.md: Replace Pmode with word_mode in
5895         builtin_setjmp_setup and builtin_longjmp to support x32.
5896
5897 2018-02-01  Peter Bergner  <bergner@vnet.ibm.com>
5898
5899         PR target/56010
5900         PR target/83743
5901         * config/rs6000/driver-rs6000.c: #include "diagnostic.h".
5902         #include "opts.h".
5903         (rs6000_supported_cpu_names): New static variable.
5904         (linux_cpu_translation_table): Likewise.
5905         (elf_platform) <cpu>: Define new static variable and use it.
5906         Translate kernel AT_PLATFORM name to canonical name if needed.
5907         Error if platform name is unknown.
5908
5909 2018-02-01  Aldy Hernandez  <aldyh@redhat.com>
5910
5911         PR target/84089
5912         * config/pa/predicates.md (base14_operand): Handle E_VOIDmode.
5913
5914 2018-02-01  Jeff Law  <law@redhat.com>
5915
5916         PR target/84128
5917         * config/i386/i386.c (release_scratch_register_on_entry): Add new
5918         OFFSET and RELEASE_VIA_POP arguments.  Use SP+OFFSET to restore
5919         the scratch if RELEASE_VIA_POP is false.
5920         (ix86_adjust_stack_and_probe_stack_clash): Un-constify SIZE.
5921         If we have to save a temporary register, decrement SIZE appropriately.
5922         Pass new arguments to release_scratch_register_on_entry.
5923         (ix86_adjust_stack_and_probe): Likewise.
5924         (ix86_emit_probe_stack_range): Pass new arguments to
5925         release_scratch_register_on_entry.
5926
5927 2018-02-01  Uros Bizjak  <ubizjak@gmail.com>
5928
5929         PR rtl-optimization/84157
5930         * combine.c (change_zero_ext): Use REG_P predicate in
5931         front of HARD_REGISTER_P predicate.
5932
5933 2018-02-01  Georg-Johann Lay  <avr@gjlay.de>
5934
5935         * config/avr/avr.c (avr_option_override): Move disabling of
5936         -fdelete-null-pointer-checks to...
5937         * common/config/avr/avr-common.c (avr_option_optimization_table):
5938         ...here.
5939
5940 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
5941
5942         PR tree-optimization/81635
5943         * tree-data-ref.c (split_constant_offset_1): For types that
5944         wrap on overflow, try to use range info to prove that wrapping
5945         cannot occur.
5946
5947 2018-02-01  Renlin Li  <renlin.li@arm.com>
5948
5949         PR target/83370
5950         * config/aarch64/aarch64.c (aarch64_class_max_nregs): Handle
5951         TAILCALL_ADDR_REGS.
5952         (aarch64_register_move_cost): Likewise.
5953         * config/aarch64/aarch64.h (reg_class): Rename CALLER_SAVE_REGS to
5954         TAILCALL_ADDR_REGS.
5955         (REG_CLASS_NAMES): Likewise.
5956         (REG_CLASS_CONTENTS): Rename CALLER_SAVE_REGS to
5957         TAILCALL_ADDR_REGS. Remove IP registers.
5958         * config/aarch64/aarch64.md (Ucs): Update register constraint.
5959
5960 2018-02-01  Richard Biener  <rguenther@suse.de>
5961
5962         * domwalk.h (dom_walker::dom_walker): Add additional constructor
5963         for specifying RPO order and allow NULL for that.
5964         * domwalk.c (dom_walker::dom_walker): Likewise.
5965         (dom_walker::walk): Handle NULL RPO order.
5966         * tree-into-ssa.c (rewrite_dom_walker): Do not walk dom children
5967         in RPO order.
5968         (rewrite_update_dom_walker): Likewise.
5969         (mark_def_dom_walker): Likewise.
5970
5971 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
5972
5973         * config/aarch64/aarch64-protos.h (aarch64_split_sve_subreg_move)
5974         (aarch64_maybe_expand_sve_subreg_move): Declare.
5975         * config/aarch64/aarch64.md (UNSPEC_REV_SUBREG): New unspec.
5976         * config/aarch64/predicates.md (aarch64_any_register_operand): New
5977         predicate.
5978         * config/aarch64/aarch64-sve.md (mov<mode>): Optimize subreg moves
5979         that are semantically a reverse operation.
5980         (*aarch64_sve_mov<mode>_subreg_be): New pattern.
5981         * config/aarch64/aarch64.c (aarch64_maybe_expand_sve_subreg_move):
5982         (aarch64_replace_reg_mode, aarch64_split_sve_subreg_move): New
5983         functions.
5984         (aarch64_can_change_mode_class): For big-endian, forbid changes
5985         between two SVE modes if they have different element sizes.
5986
5987 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
5988
5989         * config/aarch64/aarch64.c (aarch64_expand_sve_const_vector): Prefer
5990         the TImode handling for big-endian targets.
5991
5992 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
5993
5994         * config/aarch64/aarch64-sve.md (sve_ld1rq): Replace with...
5995         (*sve_ld1rq<Vesize>): ... this new pattern.  Handle all element sizes,
5996         not just bytes.
5997         * config/aarch64/aarch64.c (aarch64_expand_sve_widened_duplicate):
5998         Remove BSWAP handing for big-endian targets and use the form of
5999         LD1RQ appropariate for the mode.
6000
6001 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
6002
6003         * config/aarch64/aarch64.c (aarch64_simd_valid_immediate): Handle
6004         all CONST_VECTOR_DUPLICATE_P vectors, not just those with a single
6005         duplicated element.
6006
6007 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
6008
6009         PR tearget/83845
6010         * config/aarch64/aarch64.c (aarch64_secondary_reload): Tighten
6011         check for operands that need to go through aarch64_sve_reload_be.
6012
6013 2018-02-01  Jakub Jelinek  <jakub@redhat.com>
6014
6015         PR tree-optimization/81661
6016         PR tree-optimization/84117
6017         * tree-eh.h (rewrite_to_non_trapping_overflow): Declare.
6018         * tree-eh.c: Include gimplify.h.
6019         (find_trapping_overflow, replace_trapping_overflow,
6020         rewrite_to_non_trapping_overflow): New functions.
6021         * tree-vect-loop.c: Include tree-eh.h.
6022         (vect_get_loop_niters): Use rewrite_to_non_trapping_overflow.
6023         * tree-data-ref.c: Include tree-eh.h.
6024         (get_segment_min_max): Use rewrite_to_non_trapping_overflow.
6025
6026 2018-01-31  Uros Bizjak  <ubizjak@gmail.com>
6027
6028         PR rtl-optimization/84123
6029         * combine.c (change_zero_ext): Check if hard register satisfies
6030         can_change_dest_mode before calling gen_lowpart_SUBREG.
6031
6032 2018-01-31  Vladimir Makarov  <vmakarov@redhat.com>
6033
6034         PR target/82444
6035         * ira.c (ira_init_register_move_cost): Remove assert.
6036
6037 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
6038
6039         PR rtl-optimization/84071
6040         * doc/tm.texi.in (WORD_REGISTER_OPERATIONS): Add explicit case.
6041         * doc/tm.texi: Regenerate.
6042
6043 2018-01-31  Richard Biener  <rguenther@suse.de>
6044
6045         PR tree-optimization/84132
6046         * tree-data-ref.c (analyze_miv_subscript): Properly
6047         check whether evolution_function_is_affine_multivariate_p
6048         before calling gcd_of_steps_may_divide_p.
6049
6050 2018-01-31  Julia Koval  <julia.koval@intel.com>
6051
6052         PR target/83618
6053         * config/i386/i386.c (ix86_expand_builtin): Handle IX86_BUILTIN_RDPID.
6054         * config/i386/i386.md (rdpid_rex64) New.
6055         (rdpid): Make 32bit only.
6056
6057 2018-01-29  Aldy Hernandez  <aldyh@redhat.com>
6058
6059         PR lto/84105
6060         * tree-pretty-print.c (dump_generic_node): Handle a TYPE_NAME with
6061         an IDENTIFIER_NODE for FUNCTION_TYPE's.
6062
6063 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
6064
6065         Revert
6066         2018-01-12  Eric Botcazou  <ebotcazou@adacore.com>
6067
6068         * config/sparc/sparc.md (vxworks_load_got): Set the GOT register.
6069
6070 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
6071
6072         PR rtl-optimization/84071
6073         * combine.c (record_dead_and_set_regs_1): Record the source unmodified
6074         for a paradoxical SUBREG on a WORD_REGISTER_OPERATIONS target.
6075
6076 2018-01-31  Claudiu Zissulescu  <claziss@synopsys.com>
6077
6078         * config/arc/arc.c (arc_handle_aux_attribute): New function.
6079         (arc_attribute_table): Add 'aux' attribute.
6080         (arc_in_small_data_p): Consider aux like variables.
6081         (arc_is_aux_reg_p): New function.
6082         (arc_asm_output_aligned_decl_local): Ignore 'aux' like variables.
6083         (arc_get_aux_arg): New function.
6084         (prepare_move_operands): Handle aux-register access.
6085         (arc_handle_aux_attribute): New function.
6086         * doc/extend.texi (ARC Variable attributes): Add subsection.
6087
6088 2018-01-31  Claudiu Zissulescu  <claziss@synopsys.com>
6089
6090         * config/arc/arc-protos.h (arc_is_uncached_mem_p): Function proto.
6091         * config/arc/arc.c (arc_handle_uncached_attribute): New function.
6092         (arc_attribute_table): Add 'uncached' attribute.
6093         (arc_print_operand): Print '.di' flag for uncached memory
6094         accesses.
6095         (arc_in_small_data_p): Do not consider for small data the uncached
6096         types.
6097         (arc_is_uncached_mem_p): New function.
6098         * config/arc/predicates.md (compact_store_memory_operand): Check
6099         for uncached memory accesses.
6100         (nonvol_nonimm_operand): Likewise.
6101         * gcc/doc/extend.texi (ARC Type Attribute): New subsection.
6102
6103 2018-01-31  Jakub Jelinek  <jakub@redhat.com>
6104
6105         PR c/84100
6106         * common.opt (falign-functions=, falign-jumps=, falign-labels=,
6107         falign-loops=): Add Optimization flag.
6108
6109 2018-01-30  Jeff Law  <law@redhat.com>
6110
6111         PR target/84064
6112         * i386.c (ix86_adjust_stack_and_probe_stack_clash): New argument
6113         INT_REGISTERS_SAVED.  Check it prior to calling
6114         get_scratch_register_on_entry.
6115         (ix86_adjust_stack_and_probe): Similarly.
6116         (ix86_emit_probe_stack_range): Similarly.
6117         (ix86_expand_prologue): Corresponding changes.
6118
6119 2018-01-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
6120
6121         PR target/40411
6122         * config/sol2.h (STARTFILE_ARCH_SPEC): Use -std=c*,
6123         -std=iso9899:199409 instead of -pedantic to select values-Xc.o.
6124
6125 2018-01-30  Vladimir Makarov  <vmakarov@redhat.com>
6126
6127         PR target/84112
6128         * lra-constraints.c (curr_insn_transform): Process AND in the
6129         address.
6130
6131 2018-01-30  Jakub Jelinek  <jakub@redhat.com>
6132
6133         PR rtl-optimization/83986
6134         * sched-deps.c (sched_analyze_insn): For frame related insns, add anti
6135         dependence against last_pending_memory_flush in addition to
6136         pending_jump_insns.
6137
6138 2018-01-30  Alexandre Oliva  <aoliva@redhat.com>
6139
6140         PR tree-optimization/81611
6141         * tree-ssa-dom.c (simple_iv_increment_p): Skip intervening
6142         copies.
6143
6144 2018-01-30  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
6145
6146         PR target/83758
6147         * config/rs6000/rs6000.c (rs6000_internal_arg_pointer): Only return
6148         a reg rtx.
6149
6150 2018-01-30  Richard Biener  <rguenther@suse.de>
6151             Jakub Jelinek  <jakub@redhat.com>
6152
6153         PR tree-optimization/84111
6154         * tree-ssa-loop-ivcanon.c (tree_unroll_loops_completely_1): Skip
6155         inner loops added during recursion, as they don't have up-to-date
6156         SSA form.
6157
6158 2018-01-30  Jan Hubicka  <hubicka@ucw.cz>
6159
6160         PR ipa/81360
6161         * ipa-inline.c (can_inline_edge_p): Break out late tests to...
6162         (can_inline_edge_by_limits_p): ... here.
6163         (can_early_inline_edge_p, check_callers,
6164         update_caller_keys, update_callee_keys, recursive_inlining,
6165         add_new_edges_to_heap, speculation_useful_p,
6166         inline_small_functions,
6167         inline_small_functions, flatten_function,
6168         inline_to_all_callers_1): Update.
6169
6170 2018-01-30  Jan Hubicka  <hubicka@ucw.cz>
6171
6172         * profile-count.c (profile_count::combine_with_ipa_count): Handle
6173         zeros correctly.
6174
6175 2018-01-30  Richard Biener  <rguenther@suse.de>
6176
6177         PR tree-optimization/83008
6178         * tree-vect-slp.c (vect_analyze_slp_cost_1): Properly cost
6179         invariant and constant vector uses in stmts when they need
6180         more than one stmt.
6181
6182 2018-01-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
6183
6184         PR bootstrap/84017
6185         * configure.ac (gcc_cv_as_shf_merge): Disable on Solaris 10/x86.
6186         * configure: Regenerate.
6187
6188 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
6189
6190         * config/aarch64/aarch64-sve.md (*vec_extract<mode><Vel>_0): New
6191         pattern.
6192         (*vec_extract<mode><Vel>_v128): Require a nonzero lane number.
6193         Use gen_rtx_REG rather than gen_lowpart.
6194
6195 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
6196
6197         * lra-constraints.c (match_reload): Use subreg_lowpart_offset
6198         rather than 0 when creating partial subregs.
6199
6200 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
6201
6202         * vec-perm-indices.c (vec_perm_indices::series_p): Give examples
6203         of usage.
6204
6205 2018-01-29  Michael Meissner  <meissner@linux.vnet.ibm.com>
6206
6207         PR target/81550
6208         * config/rs6000/rs6000.c (rs6000_setup_reg_addr_masks): If DFmode
6209         and SFmode can go in Altivec registers (-mcpu=power7 for DFmode,
6210         -mcpu=power8 for SFmode) don't set the PRE_INCDEC or PRE_MODIFY
6211         flags.  This restores the settings used before the 2017-07-24.
6212         Turning off pre increment/decrement/modify allows IVOPTS to
6213         optimize DF/SF loops where the index is an int.
6214
6215 2018-01-29  Richard Biener  <rguenther@suse.de>
6216             Kelvin Nilsen  <kelvin@gcc.gnu.org>
6217
6218         PR bootstrap/80867
6219         * tree-vect-stmts.c (vectorizable_call): Don't call
6220         targetm.vectorize_builtin_md_vectorized_function if callee is
6221         NULL.
6222
6223 2018-01-22  Carl Love  <cel@us.ibm.com>
6224
6225         * doc/extend.tex: Fix typo in second arg in
6226         __builtin_bcdadd_{lt|eq|gt|ov} and __builtin_bcdsub_{lt|eq|gt|ov}.
6227
6228 2018-01-29  Richard Biener  <rguenther@suse.de>
6229
6230         PR tree-optimization/84086
6231         * tree-ssanames.c: Include cfgloop.h and tree-scalar-evolution.h.
6232         (flush_ssaname_freelist): When SSA names were released reset
6233         the SCEV hash table.
6234
6235 2018-01-29  Richard Biener  <rguenther@suse.de>
6236
6237         PR tree-optimization/84057
6238         * tree-ssa-loop-ivcanon.c (unloop_loops): Deal with already
6239         removed paths when removing edges.
6240
6241 2018-01-27  H.J. Lu  <hongjiu.lu@intel.com>
6242
6243         * doc/invoke.texi: Replace -mfunction-return==@var{choice} with
6244         -mfunction-return=@var{choice}.
6245
6246 2018-01-27  Bernd Edlinger  <bernd.edlinger@hotmail.de>
6247
6248         PR diagnostic/84034
6249         * diagnostic-show-locus.c (get_line_width_without_trailing_whitespace):
6250         Handle CR like TAB.
6251         (layout::print_source_line): Likewise.
6252         (test_get_line_width_without_trailing_whitespace): Add test cases.
6253
6254 2018-01-27  Jakub Jelinek  <jakub@redhat.com>
6255
6256         PR middle-end/84040
6257         * sched-deps.c (sched_macro_fuse_insns): Return immediately for
6258         debug insns.
6259
6260 2018-01-26  Jim Wilson  <jimw@sifive.com>
6261
6262         * config/riscv/riscv.h (MAX_FIXED_MODE_SIZE): New.
6263
6264         * config/riscv/elf.h (LIB_SPEC): Don't include -lgloss when nosys.specs
6265         specified.
6266
6267 2018-01-26  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
6268
6269         * config/aarch64/aarch64.md: Add peepholes for CMP + SUB -> SUBS
6270         and CMP + SUB-immediate -> SUBS.
6271
6272 2018-01-26  Martin Sebor  <msebor@redhat.com>
6273
6274         PR tree-optimization/83896
6275         * tree-ssa-strlen.c (get_string_len): Rename...
6276         (get_string_cst_length): ...to this.  Return HOST_WIDE_INT.
6277         Avoid assuming length is constant.
6278         (handle_char_store): Use HOST_WIDE_INT for string length.
6279
6280 2018-01-26  Uros Bizjak  <ubizjak@gmail.com>
6281
6282         PR target/81763
6283         * config/i386/i386.md (*andndi3_doubleword): Add earlyclobber
6284         to (=&r,r,rm) alternative. Add (=r,0,rm) and (=r,r,0) alternatives.
6285
6286 2018-01-26  Richard Biener  <rguenther@suse.de>
6287
6288         PR rtl-optimization/84003
6289         * dse.c (record_store): Only record redundant stores when
6290         the earlier store aliases at least all accesses the later one does.
6291
6292 2018-01-26  Jakub Jelinek  <jakub@redhat.com>
6293
6294         PR rtl-optimization/83985
6295         * dce.c (deletable_insn_p): Return false for separate shrink wrapping
6296         REG_CFA_RESTORE insns.
6297         (delete_unmarked_insns): Don't ignore separate shrink wrapping
6298         REG_CFA_RESTORE insns here.
6299
6300         PR c/83989
6301         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Don't
6302         use SSA_NAME_VAR as base for SSA_NAMEs with non-NULL SSA_NAME_VAR.
6303
6304 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
6305
6306         * config/arc/arc-arch.h (arc_tune_attr): Add ARC_TUNE_CORE_3.
6307         * config/arc/arc.c (arc_sched_issue_rate): Use ARC_TUNE_... .
6308         (arc_init): Likewise.
6309         (arc_override_options): Likewise.
6310         (arc_file_start): Choose Tag_ARC_CPU_variation based on arc_tune
6311         value.
6312         (hwloop_fail): Use TARGET_DBNZ when we want to check for dbnz insn
6313         support.
6314         * config/arc/arc.h (TARGET_DBNZ): Define.
6315         * config/arc/arc.md (attr tune): Add core_3, use ARC_TUNE_... to
6316         properly set the tune attribute.
6317         (dbnz): Use TARGET_DBNZ guard.
6318         * config/arc/arc.opt (mtune): Add core3 option.
6319
6320 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
6321
6322         * config/arc/arc.c (arc_delegitimize_address_0): Refactored to
6323         recognize new pic like addresses.
6324         (arc_delegitimize_address): Clean up.
6325
6326 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
6327
6328         * config/arc/arc-arches.def: Option mrf16 valid for all
6329         architectures.
6330         * config/arc/arc-c.def (__ARC_RF16__): New predefined macro.
6331         * config/arc/arc-cpus.def (em_mini): New cpu with rf16 on.
6332         * config/arc/arc-options.def (FL_RF16): Add mrf16 option.
6333         * config/arc/arc-tables.opt: Regenerate.
6334         * config/arc/arc.c (arc_conditional_register_usage): Handle
6335         reduced register file case.
6336         (arc_file_start): Set must have build attributes.
6337         * config/arc/arc.h (MAX_ARC_PARM_REGS): Conditional define using
6338         mrf16 option value.
6339         * config/arc/arc.opt (mrf16): Add new option.
6340         * config/arc/elf.h (ATTRIBUTE_PCS): Define.
6341         * config/arc/genmultilib.awk: Handle new mrf16 option.
6342         * config/arc/linux.h (ATTRIBUTE_PCS): Define.
6343         * config/arc/t-multilib: Regenerate.
6344         * doc/invoke.texi (ARC Options): Document mrf16 option.
6345
6346 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
6347
6348         * config/arc/arc-protos.h: Add arc_is_secure_call_p proto.
6349         * config/arc/arc.c (arc_handle_secure_attribute): New function.
6350         (arc_attribute_table): Add 'secure_call' attribute.
6351         (arc_print_operand): Print secure call operand.
6352         (arc_function_ok_for_sibcall): Don't optimize tail calls when
6353         secure.
6354         (arc_is_secure_call_p): New function.  * config/arc/arc.md
6355         (call_i): Add support for sjli instruction.
6356         (call_value_i): Likewise.
6357         * config/arc/constraints.md (Csc): New constraint.
6358
6359 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
6360             John Eric Martin  <John.Martin@emmicro-us.com>
6361
6362         * config/arc/arc-protos.h: Add arc_is_jli_call_p proto.
6363         * config/arc/arc.c (_arc_jli_section): New struct.
6364         (arc_jli_section): New type.
6365         (rc_jli_sections): New static variable.
6366         (arc_handle_jli_attribute): New function.
6367         (arc_attribute_table): Add jli_always and jli_fixed attribute.
6368         (arc_file_end): New function.
6369         (TARGET_ASM_FILE_END): Define.
6370         (arc_print_operand): Reuse 'S' letter for JLI output instruction.
6371         (arc_add_jli_section): New function.
6372         (jli_call_scan): Likewise.
6373         (arc_reorg): Call jli_call_scan.
6374         (arc_output_addsi): Remove 'S' from printing asm operand.
6375         (arc_is_jli_call_p): New function.
6376         * config/arc/arc.md (movqi_insn): Remove 'S' from printing asm
6377         operand.
6378         (movhi_insn): Likewise.
6379         (movsi_insn): Likewise.
6380         (movsi_set_cc_insn): Likewise.
6381         (loadqi_update): Likewise.
6382         (load_zeroextendqisi_update): Likewise.
6383         (load_signextendqisi_update): Likewise.
6384         (loadhi_update): Likewise.
6385         (load_zeroextendhisi_update): Likewise.
6386         (load_signextendhisi_update): Likewise.
6387         (loadsi_update): Likewise.
6388         (loadsf_update): Likewise.
6389         (movsicc_insn): Likewise.
6390         (bset_insn): Likewise.
6391         (bxor_insn): Likewise.
6392         (bclr_insn): Likewise.
6393         (bmsk_insn): Likewise.
6394         (bicsi3_insn): Likewise.
6395         (cmpsi_cc_c_insn): Likewise.
6396         (movsi_ne): Likewise.
6397         (movsi_cond_exec): Likewise.
6398         (clrsbsi2): Likewise.
6399         (norm_f): Likewise.
6400         (normw): Likewise.
6401         (swap): Likewise.
6402         (divaw): Likewise.
6403         (flag): Likewise.
6404         (sr): Likewise.
6405         (kflag): Likewise.
6406         (ffs): Likewise.
6407         (ffs_f): Likewise.
6408         (fls): Likewise.
6409         (call_i): Remove 'S' asm letter, add jli instruction.
6410         (call_value_i): Likewise.
6411         * config/arc/arc.op (mjli-always): New option.
6412         * config/arc/constraints.md (Cji): New constraint.
6413         * config/arc/fpx.md (addsf3_fpx): Remove 'S' from printing asm
6414         operand.
6415         (subsf3_fpx): Likewise.
6416         (mulsf3_fpx): Likewise.
6417         * config/arc/simdext.md (vendrec_insn): Remove 'S' from printing
6418         asm operand.
6419         * doc/extend.texi (ARC): Document 'jli-always' and 'jli-fixed'
6420         function attrbutes.
6421         * doc/invoke.texi (ARC): Document mjli-always option.
6422
6423 2018-01-26  Sebastian Perta  <sebastian.perta@renesas.com>
6424
6425         * config/rl78/rl78.c (rl78_addsi3_internal): If operand 2 is const
6426         avoid addition with 0 and use incw and decw where possible.
6427
6428 2018-01-26  Richard Biener  <rguenther@suse.de>
6429
6430         PR tree-optimization/81082
6431         * fold-const.c (fold_plusminus_mult_expr): Do not perform the
6432         association if it requires casting to unsigned.
6433         * match.pd ((A * C) +- (B * C) -> (A+-B)): New patterns derived
6434         from fold_plusminus_mult_expr to catch important cases late when
6435         range info is available.
6436
6437 2018-01-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
6438
6439         * config/i386/sol2.h (USE_HIDDEN_LINKONCE): Remove.
6440         * configure.ac (hidden_linkonce): New test.
6441         * configure: Regenerate.
6442         * config.in: Regenerate.
6443
6444 2018-01-26  Julia Koval  <julia.koval@intel.com>
6445
6446         * config/i386/avx512bitalgintrin.h (_mm512_bitshuffle_epi64_mask,
6447         _mm512_mask_bitshuffle_epi64_mask, _mm256_bitshuffle_epi64_mask,
6448         _mm256_mask_bitshuffle_epi64_mask, _mm_bitshuffle_epi64_mask,
6449         _mm_mask_bitshuffle_epi64_mask): Fix type.
6450         * config/i386/i386-builtin-types.def (UHI_FTYPE_V2DI_V2DI_UHI,
6451         USI_FTYPE_V4DI_V4DI_USI): Remove.
6452         * config/i386/i386-builtin.def (__builtin_ia32_vpshufbitqmb512_mask,
6453         __builtin_ia32_vpshufbitqmb256_mask,
6454         __builtin_ia32_vpshufbitqmb128_mask): Fix types.
6455         * config/i386/i386.c (ix86_expand_args_builtin): Remove old types.
6456         * config/i386/sse.md (VI1_AVX512VLBW): Change types.
6457
6458 2018-01-26  Alan Modra  <amodra@gmail.com>
6459
6460         PR target/84033
6461         * config/rs6000/rs6000-p8swap.c (rtx_is_swappable_p): Exclude
6462         UNSPEC_VBPERMQ.  Sort other unspecs.
6463
6464 2018-01-25  David Edelsohn  <dje.gcc@gmail.com>
6465
6466         * doc/invoke.texi (PowerPC Options): Document 'native' cpu type.
6467
6468 2018-01-25  Jan Hubicka  <hubicka@ucw.cz>
6469
6470         PR middle-end/83055
6471         * predict.c (drop_profile): Do not push/pop cfun; update also
6472         node->count.
6473         (handle_missing_profiles): Fix logic looking for zero profiles.
6474
6475 2018-01-25  Jakub Jelinek  <jakub@redhat.com>
6476
6477         PR middle-end/83977
6478         * ipa-fnsummary.c (compute_fn_summary): Clear can_change_signature
6479         on functions with #pragma omp declare simd or functions with simd
6480         attribute.
6481         * omp-simd-clone.c (expand_simd_clones): Revert 2018-01-24 change.
6482         * config/i386/i386.c (ix86_simd_clone_compute_vecsize_and_simdlen):
6483         Remove trailing \n from warning_at calls.
6484
6485 2018-01-25  Tom de Vries  <tom@codesourcery.com>
6486
6487         PR target/84028
6488         * config/nvptx/nvptx.c (nvptx_single): Add exit insn after noreturn call
6489         for neutered workers.
6490
6491 2018-01-24  Joseph Myers  <joseph@codesourcery.com>
6492
6493         PR target/68467
6494         * config/m68k/m68k.c (m68k_promote_function_mode): New function.
6495         (TARGET_PROMOTE_FUNCTION_MODE): New macro.
6496
6497 2018-01-24  Jeff Law  <law@redhat.com>
6498
6499         PR target/83994
6500         * i386.c (get_probe_interval): Move to earlier point.
6501         (ix86_compute_frame_layout): If -fstack-clash-protection and
6502         the frame is larger than the probe interval, then use pushes
6503         to save registers rather than reg->mem moves.
6504         (ix86_expand_prologue): Remove conditional for int_registers_saved
6505         assertion.
6506
6507 2018-01-24  Vladimir Makarov  <vmakarov@redhat.com>
6508
6509         PR target/84014
6510         * ira-build.c (setup_min_max_allocno_live_range_point): Set up
6511         min/max for never referenced object.
6512
6513 2018-01-24  Jakub Jelinek  <jakub@redhat.com>
6514
6515         PR middle-end/83977
6516         * tree.c (free_lang_data_in_decl): Don't clear DECL_ABSTRACT_ORIGIN
6517         here.
6518         * omp-low.c (create_omp_child_function): Remove "omp declare simd"
6519         attributes from DECL_ATTRIBUTES (decl) without affecting
6520         DECL_ATTRIBUTES (current_function_decl).
6521         * omp-simd-clone.c (expand_simd_clones): Ignore DECL_ARTIFICIAL
6522         functions with non-NULL DECL_ABSTRACT_ORIGIN.
6523
6524 2018-01-24  Richard Sandiford  <richard.sandiford@linaro.org>
6525
6526         PR tree-optimization/83979
6527         * fold-const.c (fold_comparison): Use constant_boolean_node
6528         instead of boolean_{true,false}_node.
6529
6530 2018-01-24  Jan Hubicka  <hubicka@ucw.cz>
6531
6532         * ipa-profile.c (ipa_propagate_frequency_1): Fix logic skipping calls
6533         with zero counts.
6534
6535 2018-01-24  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
6536
6537         * config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
6538         Simplify the clause that sets the length attribute.
6539         (*call_value_indirect_nonlocal_sysv<mode>): Likewise.
6540         (*sibcall_nonlocal_sysv<mode>): Clean up code block; simplify the
6541         clause that sets the length attribute.
6542         (*sibcall_value_nonlocal_sysv<mode>): Likewise.
6543
6544 2018-01-24  Tom de Vries  <tom@codesourcery.com>
6545
6546         PR target/83589
6547         * config/nvptx/nvptx.c (WORKAROUND_PTXJIT_BUG_2): Define to 1.
6548         (nvptx_pc_set, nvptx_condjump_label): New function. Copy from jump.c.
6549         Add strict parameter.
6550         (prevent_branch_around_nothing): Insert dummy insn between branch to
6551         label and label with no ptx insn inbetween.
6552         * config/nvptx/nvptx.md (define_insn "fake_nop"): New insn.
6553
6554 2018-01-24  Tom de Vries  <tom@codesourcery.com>
6555
6556         PR target/81352
6557         * config/nvptx/nvptx.c (nvptx_single): Add exit insn after noreturn call
6558         for neutered threads in warp.
6559         * config/nvptx/nvptx.md (define_insn "exit"): New insn.
6560
6561 2018-01-24  Richard Biener  <rguenther@suse.de>
6562
6563         PR tree-optimization/83176
6564         * tree-chrec.c (chrec_fold_plus_1): Handle (signed T){(T) .. }
6565         operands.
6566
6567 2018-01-24  Richard Biener  <rguenther@suse.de>
6568
6569         PR tree-optimization/82819
6570         * graphite-isl-ast-to-gimple.c (binary_op_to_tree): Avoid
6571         code generating pluses that are no-ops in the target precision.
6572
6573 2018-01-24  Richard Biener  <rguenther@suse.de>
6574
6575         PR middle-end/84000
6576         * tree-cfg.c (replace_loop_annotate): Handle annot_expr_parallel_kind.
6577
6578 2018-01-23  Jan Hubicka  <hubicka@ucw.cz>
6579
6580         * cfgcleanup.c (try_crossjump_to_edge): Use combine_with_count
6581         to merge probabilities.
6582         * predict.c (probably_never_executed): Also mark as cold functions
6583         with global 0 profile and guessed local profile.
6584         * profile-count.c (profile_probability::combine_with_count): New
6585         member function.
6586         * profile-count.h (profile_probability::operator*,
6587         profile_probability::operator*=, profile_probability::operator/,
6588         profile_probability::operator/=): Reduce precision to adjusted
6589         and set value to guessed on contradictory divisions.
6590         (profile_probability::combine_with_freq): Remove.
6591         (profile_probability::combine_wiht_count): Declare.
6592         (profile_count::force_nonzero):: Set to adjusted.
6593         (profile_count::probability_in):: Set quality to adjusted.
6594         * tree-ssa-tail-merge.c (replace_block_by): Use
6595         combine_with_count.
6596
6597 2018-01-23  Andrew Waterman  <andrew@sifive.com>
6598             Jim Wilson  <jimw@sifive.com>
6599
6600         * config/riscv/riscv.c (riscv_stack_boundary): New.
6601         (riscv_option_override): Set riscv_stack_boundary.  Handle
6602         riscv_preferred_stack_boundary_arg.
6603         * config/riscv/riscv.h (MIN_STACK_BOUNDARY, ABI_STACK_BOUNDARY): New.
6604         (BIGGEST_ALIGNMENT): Set to STACK_BOUNDARY.
6605         (STACK_BOUNDARY): Set to riscv_stack_boundary.
6606         (RISCV_STACK_ALIGN): Use STACK_BOUNDARY.
6607         * config/riscv/riscv.opt (mpreferred-stack-boundary): New.
6608         * doc/invoke.tex (RISC-V Options): Add -mpreferred-stack-boundary.
6609
6610 2018-01-23  H.J. Lu  <hongjiu.lu@intel.com>
6611
6612         PR target/83905
6613         * config/i386/i386.c (ix86_expand_prologue): Use cost reference
6614         of struct ix86_frame.
6615         (ix86_expand_epilogue): Likewise.  Add a local variable for
6616         the reg_save_offset field in struct ix86_frame.
6617
6618 2018-01-23  Bin Cheng  <bin.cheng@arm.com>
6619
6620         PR tree-optimization/82604
6621         * tree-loop-distribution.c (enum partition_kind): New enum item
6622         PKIND_PARTIAL_MEMSET.
6623         (partition_builtin_p): Support above new enum item.
6624         (generate_code_for_partition): Ditto.
6625         (compute_access_range): Differentiate cases that equality can be
6626         proven at all loops, the innermost loops or no loops.
6627         (classify_builtin_st, classify_builtin_ldst): Adjust call to above
6628         function.  Set PKIND_PARTIAL_MEMSET for partition appropriately.
6629         (finalize_partitions, distribute_loop): Don't fuse partition of
6630         PKIND_PARTIAL_MEMSET kind when distributing 3-level loop nest.
6631         (prepare_perfect_loop_nest): Distribute 3-level loop nest only if
6632         parloop is enabled.
6633
6634 2018-01-23  Martin Liska  <mliska@suse.cz>
6635
6636         * predict.def (PRED_INDIR_CALL): Set probability to PROB_EVEN in
6637         order to ignore the predictor.
6638         (PRED_POLYMORPHIC_CALL): Likewise.
6639         (PRED_RECURSIVE_CALL): Likewise.
6640
6641 2018-01-23  Martin Liska  <mliska@suse.cz>
6642
6643         * tree-profile.c (tree_profiling): Print function header to
6644         aware reader which function we are working on.
6645         * value-prof.c (gimple_find_values_to_profile): Do not print
6646         not interesting value histograms.
6647
6648 2018-01-23  Martin Liska  <mliska@suse.cz>
6649
6650         * profile-count.h (enum profile_quality): Add
6651         profile_uninitialized as the first value. Do not number values
6652         as they are zero based.
6653         (profile_count::verify): Update sanity check.
6654         (profile_probability::verify): Likewise.
6655
6656 2018-01-23  Nathan Sidwell  <nathan@acm.org>
6657
6658         * doc/invoke.texi (ffor-scope): Deprecate.
6659
6660 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
6661
6662         PR tree-optimization/83510
6663         * domwalk.c (set_all_edges_as_executable): New function.
6664         (dom_walker::dom_walker): Convert bool param
6665         "skip_unreachable_blocks" to enum reachability.  Move setup of
6666         edge flags to set_all_edges_as_executable and only do it when
6667         reachability is REACHABLE_BLOCKS.
6668         * domwalk.h (enum dom_walker::reachability): New enum.
6669         (dom_walker::dom_walker): Convert bool param
6670         "skip_unreachable_blocks" to enum reachability.
6671         (set_all_edges_as_executable): New decl.
6672         * graphite-scop-detection.c  (gather_bbs::gather_bbs): Convert
6673         from false for "skip_unreachable_blocks" to ALL_BLOCKS for
6674         "reachability".
6675         * tree-ssa-dom.c (dom_opt_dom_walker::dom_opt_dom_walker): Likewise,
6676         but converting true to REACHABLE_BLOCKS.
6677         * tree-ssa-sccvn.c (sccvn_dom_walker::sccvn_dom_walker): Likewise.
6678         * tree-vrp.c
6679         (check_array_bounds_dom_walker::check_array_bounds_dom_walker):
6680         Likewise, but converting it to REACHABLE_BLOCKS_PRESERVING_FLAGS.
6681         (vrp_dom_walker::vrp_dom_walker): Likewise, but converting it to
6682         REACHABLE_BLOCKS.
6683         (vrp_prop::vrp_finalize): Call set_all_edges_as_executable
6684         if check_all_array_refs will be called.
6685
6686 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
6687
6688         * tree.c (selftest::test_location_wrappers): Add more test
6689         coverage.
6690
6691 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
6692
6693         * sbitmap.c (selftest::test_set_range): Fix memory leaks.
6694         (selftest::test_bit_in_range): Likewise.
6695
6696 2018-01-23  Richard Sandiford  <richard.sandiford@linaro.org>
6697
6698         PR testsuite/83888
6699         * doc/sourcebuild.texi (vect_float): Say that the selector
6700         only describes the situation when -funsafe-math-optimizations is on.
6701         (vect_float_strict): Document.
6702
6703 2018-01-23  Richard Sandiford  <richard.sandiford@linaro.org>
6704
6705         PR tree-optimization/83965
6706         * tree-vect-patterns.c (vect_reassociating_reduction_p): New function.
6707         (vect_recog_dot_prod_pattern, vect_recog_sad_pattern): Use it
6708         instead of checking only for a reduction.
6709         (vect_recog_widen_sum_pattern): Likewise.
6710
6711 2018-01-23  Jan Hubicka  <hubicka@ucw.cz>
6712
6713         * predict.c (probably_never_executed): Only use precise profile info.
6714         (compute_function_frequency): Skip after inlining hack since we now
6715         have quality checking.
6716
6717 2018-01-23  Jan Hubicka  <hubicka@ucw.cz>
6718
6719         * profile-count.h (profile_probability::very_unlikely,
6720         profile_probability::unlikely, profile_probability::even): Set
6721         precision to guessed.
6722
6723 2018-01-23  Richard Biener  <rguenther@suse.de>
6724
6725         PR tree-optimization/83963
6726         * graphite-scop-detection.c (scop_detection::harmful_loop_in_region):
6727         Properly terminate dominator walk when crossing the exit edge not
6728         when visiting its source block.
6729
6730 2018-01-23  Jakub Jelinek  <jakub@redhat.com>
6731
6732         PR c++/83918
6733         * tree.c (maybe_wrap_with_location): Use NON_LVALUE_EXPR rather than
6734         VIEW_CONVERT_EXPR to wrap CONST_DECLs.
6735
6736 2018-01-22  Jakub Jelinek  <jakub@redhat.com>
6737
6738         PR tree-optimization/83957
6739         * omp-expand.c (expand_omp_for_generic): Ignore virtual PHIs.  Remove
6740         semicolon after for body surrounded by braces.
6741
6742         PR tree-optimization/83081
6743         * profile-count.h (profile_probability::split): New method.
6744         * dojump.c (do_jump_1) <case TRUTH_ANDIF_EXPR, case TRUTH_ORIF_EXPR>:
6745         Use profile_probability::split.
6746         (do_compare_rtx_and_jump): Fix adjustment of probabilities
6747         when splitting a single conditional jump into 2.
6748
6749 2018-01-22  David Malcolm  <dmalcolm@redhat.com>
6750
6751         PR tree-optimization/69452
6752         * tree-ssa-loop-im.c (class move_computations_dom_walker): Remove
6753         decl.
6754
6755 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6756
6757         * config/rl78/rl78-expand.md (bswaphi2): New define_expand.
6758         * config/rl78/rl78-virt.md (*bswaphi2_virt): New define_insn.
6759         * config/rl78/rl78-real.md (*bswaphi2_real): New define_insn.
6760
6761 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6762
6763         * config/rl78/rl78-protos.h (rl78_split_movdi): New function declaration.
6764         * config/rl78/rl78.md (movdi): New define_expand.
6765         * config/rl78/rl78.c (rl78_split_movdi): New function.
6766
6767 2018-01-22  Michael Meissner  <meissner@linux.vnet.ibm.com>
6768
6769         PR target/83862
6770         * config/rs6000/rs6000-protos.h (rs6000_split_signbit): Delete,
6771         no longer used.
6772         * config/rs6000/rs6000.c (rs6000_split_signbit): Likewise.
6773         * config/rs6000/rs6000.md (signbit<mode>2): Change code for IEEE
6774         128-bit to produce an UNSPEC move to get the double word with the
6775         signbit and then a shift directly to do signbit.
6776         (signbit<mode>2_dm): Replace old IEEE 128-bit signbit
6777         implementation with a new version that just does either a direct
6778         move or a regular move.  Move memory interface to separate insns.
6779         Move insns so they are next to the expander.
6780         (signbit<mode>2_dm_mem_be): New combiner insns to combine load
6781         with signbit move.  Split big and little endian case.
6782         (signbit<mode>2_dm_mem_le): Likewise.
6783         (signbit<mode>2_dm_<su>ext): Delete, no longer used.
6784         (signbit<mode>2_dm2): Likewise.
6785
6786 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6787
6788         * config/rl78/rl78.md (anddi3): New define_expand.
6789
6790 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6791
6792         * config/rl78/rl78.md (umindi3): New define_expand.
6793
6794 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6795
6796         * config/rl78/rl78.md (smindi3): New define_expand.
6797
6798 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6799
6800         * config/rl78/rl78.md (smaxdi3): New define_expand.
6801
6802 2018-01-22  Carl Love  <cel@us.ibm.com>
6803
6804         * config/rs6000/rs6000-builtin.def (ST_ELEMREV_V1TI, LD_ELEMREV_V1TI,
6805         LVX_V1TI): Add macro expansion.
6806         * config/rs6000/rs6000-c.c (altivec_builtin_types): Add argument
6807         definitions for VSX_BUILTIN_VEC_XST_BE, VSX_BUILTIN_VEC_ST,
6808         VSX_BUILTIN_VEC_XL, LD_ELEMREV_V1TI builtins.
6809         * config/rs6000/rs6000-p8swap.c (insn_is_swappable_p);
6810         Change check to determine if the instruction is a byte reversing
6811         entry.  Fix typo in comment.
6812         * config/rs6000/rs6000.c (altivec_expand_builtin): Add case entry
6813         for VSX_BUILTIN_ST_ELEMREV_V1TI and VSX_BUILTIN_LD_ELEMREV_V1TI.
6814         Add def_builtin calls for new builtins.
6815         * config/rs6000/vsx.md (vsx_st_elemrev_v1ti, vsx_ld_elemrev_v1ti):
6816         Add define_insn expansion.
6817
6818 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6819
6820         * config/rl78/rl78.md (umaxdi3): New define_expand.
6821
6822 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6823
6824         * config/rl78/rl78.c (rl78_note_reg_set): Fixed dead reg check
6825         for non-QImode registers.
6826
6827 2018-01-22  Richard Biener  <rguenther@suse.de>
6828
6829         PR tree-optimization/83963
6830         * graphite-scop-detection.c (scop_detection::get_sese): Delay
6831         including the loop exit block.
6832         (scop_detection::merge_sese): Likewise.
6833         (scop_detection::add_scop): Do it here instead.
6834
6835 2018-01-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
6836
6837         * doc/sourcebuild.texi (arm_softfloat): Document.
6838
6839 2018-01-21  John David Anglin  <danglin@gcc.gnu.org>
6840
6841         PR gcc/77734
6842         * config/pa/pa.c (pa_function_ok_for_sibcall): Use
6843         targetm.binds_local_p instead of TREE_PUBLIC to check local binding.
6844         Move TARGET_PORTABLE_RUNTIME check after TARGET_64BIT check.
6845
6846 2018-01-21  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
6847             David Edelsohn  <dje.gcc@gmail.com>
6848
6849         PR target/83946
6850         * config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
6851         Change "crset eq" to "crset 2".
6852         (*call_value_indirect_nonlocal_sysv<mode>): Likewise.
6853         (*call_indirect_aix<mode>_nospec): Likewise.
6854         (*call_value_indirect_aix<mode>_nospec): Likewise.
6855         (*call_indirect_elfv2<mode>_nospec): Likewise.
6856         (*call_value_indirect_elfv2<mode>_nospec): Likewise.
6857         (*sibcall_nonlocal_sysv<mode>): Change "crset eq" to "crset 2";
6858         change assembly output from . to $.
6859         (*sibcall_value_nonlocal_sysv<mode>): Likewise.
6860         (indirect_jump<mode>_nospec): Change assembly output from . to $.
6861         (*tablejump<mode>_internal1_nospec): Likewise.
6862
6863 2018-01-21  Oleg Endo  <olegendo@gcc.gnu.org>
6864
6865         PR target/80870
6866         * config/sh/sh_optimize_sett_clrt.cc:
6867         Use INCLUDE_ALGORITHM and INCLUDE_VECTOR instead of direct includes.
6868
6869 2018-01-20  Richard Sandiford  <richard.sandiford@linaro.org>
6870
6871         PR tree-optimization/83940
6872         * tree-vect-stmts.c (vect_truncate_gather_scatter_offset): Set
6873         offset_dt to vect_constant_def rather than vect_unknown_def_type.
6874         (vect_check_load_store_mask): Add a mask_dt_out parameter and
6875         use it to pass back the definition type.
6876         (vect_check_store_rhs): Likewise rhs_dt_out.
6877         (vect_build_gather_load_calls): Add a mask_dt argument and use
6878         it instead of a call to vect_is_simple_use.
6879         (vectorizable_store): Update calls to vect_check_load_store_mask
6880         and vect_check_store_rhs.  Use the dt returned by the latter instead
6881         of scatter_src_dt.  Use the cached mask_dt and gs_info.offset_dt
6882         instead of calls to vect_is_simple_use.  Pass the scalar rather
6883         than the vector operand to vect_is_simple_use when handling
6884         second and subsequent copies of an rhs value.
6885         (vectorizable_load): Update calls to vect_check_load_store_mask
6886         and vect_build_gather_load_calls.  Use the cached mask_dt and
6887         gs_info.offset_dt instead of calls to vect_is_simple_use.
6888
6889 2018-01-20  Jakub Jelinek  <jakub@redhat.com>
6890
6891         PR middle-end/83945
6892         * tree-emutls.c: Include gimplify.h.
6893         (lower_emutls_2): New function.
6894         (lower_emutls_1): If ADDR_EXPR is a gimple invariant and walk_tree
6895         with lower_emutls_2 callback finds some TLS decl in it, unshare_expr
6896         it before further processing.
6897
6898         PR target/83930
6899         * simplify-rtx.c (simplify_binary_operation_1) <case UMOD>: Use
6900         UINTVAL (trueop1) instead of INTVAL (op1).
6901
6902 2018-01-19  Jakub Jelinek  <jakub@redhat.com>
6903
6904         PR debug/81570
6905         PR debug/83728
6906         * dwarf2cfi.c (DEFAULT_INCOMING_FRAME_SP_OFFSET): Define to
6907         INCOMING_FRAME_SP_OFFSET if not defined.
6908         (scan_trace): Add ENTRY argument.  If true and
6909         DEFAULT_INCOMING_FRAME_SP_OFFSET != INCOMING_FRAME_SP_OFFSET,
6910         emit a note to adjust the CFA offset.
6911         (create_cfi_notes): Adjust scan_trace callers.
6912         (create_cie_data): Use DEFAULT_INCOMING_FRAME_SP_OFFSET rather than
6913         INCOMING_FRAME_SP_OFFSET in the CIE.
6914         * config/i386/i386.h (DEFAULT_INCOMING_FRAME_SP_OFFSET): Define.
6915         * config/stormy16/stormy16.h (DEFAULT_INCOMING_FRAME_SP_OFFSET):
6916         Likewise.
6917         * doc/tm.texi.in (DEFAULT_INCOMING_FRAME_SP_OFFSET): Document.
6918         * doc/tm.texi: Regenerated.
6919
6920 2018-01-19  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
6921
6922         PR rtl-optimization/83147
6923         * lra-constraints.c (remove_inheritance_pseudos): Use
6924         lra_substitute_pseudo_within_insn.
6925
6926 2018-01-19  Tom de Vries  <tom@codesourcery.com>
6927             Cesar Philippidis  <cesar@codesourcery.com>
6928
6929         PR target/83920
6930         * config/nvptx/nvptx.c (nvptx_single): Fix jit workaround.
6931
6932 2018-01-19  Cesar Philippidis  <cesar@codesourcery.com>
6933
6934         PR target/83790
6935         * config/nvptx/nvptx.c (output_init_frag): Don't use generic address
6936         spaces for function labels.
6937
6938 2018-01-19  Martin Liska  <mliska@suse.cz>
6939
6940         * predict.def (PRED_LOOP_EXIT): Change from 85 to 89.
6941         (PRED_LOOP_EXIT_WITH_RECURSION): Change from 72 to 78.
6942         (PRED_LOOP_EXTRA_EXIT): Change from 83 to 67.
6943         (PRED_OPCODE_POSITIVE): Change from 64 to 59.
6944         (PRED_TREE_OPCODE_POSITIVE): Change from 64 to 59.
6945         (PRED_CONST_RETURN): Change from 69 to 65.
6946         (PRED_NULL_RETURN): Change from 91 to 71.
6947         (PRED_LOOP_IV_COMPARE_GUESS): Change from 98 to 64.
6948         (PRED_LOOP_GUARD): Change from 66 to 73.
6949
6950 2018-01-19  Martin Liska  <mliska@suse.cz>
6951
6952         * predict.c (predict_insn_def): Add new assert.
6953         (struct branch_predictor): Change type to signed integer.
6954         (test_prediction_value_range): Amend test to cover
6955         PROB_UNINITIALIZED.
6956         * predict.def (PRED_LOOP_ITERATIONS): Use the new constant.
6957         (PRED_LOOP_ITERATIONS_GUESSED): Likewise.
6958         (PRED_LOOP_ITERATIONS_MAX): Likewise.
6959         (PRED_LOOP_IV_COMPARE): Likewise.
6960         * predict.h (PROB_UNINITIALIZED): Define new constant.
6961
6962 2018-01-19  Martin Liska  <mliska@suse.cz>
6963
6964         * predict.c (dump_prediction): Add new format for
6965         analyze_brprob.py script which is enabled with -details
6966         suboption.
6967         * profile-count.h (precise_p): New function.
6968
6969 2018-01-19  Richard Sandiford  <richard.sandiford@linaro.org>
6970
6971         PR tree-optimization/83922
6972         * tree-vect-loop.c (vect_verify_full_masking): Return false if
6973         there are no statements that need masking.
6974         (vect_active_double_reduction_p): New function.
6975         (vect_analyze_loop_operations): Use it when handling phis that
6976         are not in the loop header.
6977
6978 2018-01-19  Richard Sandiford  <richard.sandiford@linaro.org>
6979
6980         PR tree-optimization/83914
6981         * tree-vect-loop.c (vectorizable_induction): Don't convert
6982         init_expr or apply the peeling adjustment for inductions
6983         that are nested within the vectorized loop.
6984
6985 2018-01-19  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
6986
6987         * config/arm/thumb2.md (*thumb2_negsi2_short): Use RSB mnemonic
6988         instead of NEG.
6989
6990 2018-01-18  Jakub Jelinek  <jakub@redhat.com>
6991
6992         PR sanitizer/81715
6993         PR testsuite/83882
6994         * function.h (gimplify_parameters): Add gimple_seq * argument.
6995         * function.c: Include gimple.h and options.h.
6996         (gimplify_parameters): Add cleanup argument, add CLOBBER stmts
6997         for the added local temporaries if needed.
6998         * gimplify.c (gimplify_body): Adjust gimplify_parameters caller,
6999         if there are any parameter cleanups, wrap whole body into a
7000         try/finally with the cleanups.
7001
7002 2018-01-18  Wilco Dijkstra  <wdijkstr@arm.com>
7003
7004         PR target/82964
7005         * config/aarch64/aarch64.c (aarch64_legitimate_constant_p):
7006         Use GET_MODE_CLASS for scalar floating point.
7007
7008 2018-01-18  Jan Hubicka  <hubicka@ucw.cz>
7009
7010         PR ipa/82256
7011         patch by PaX Team
7012         * cgraphclones.c (cgraph_node::create_version_clone_with_body):
7013         Fix call of call_cgraph_insertion_hooks.
7014
7015 2018-01-18  Martin Sebor  <msebor@redhat.com>
7016
7017         * doc/invoke.texi (-Wclass-memaccess): Tweak text.
7018
7019 2018-01-18  Jan Hubicka  <hubicka@ucw.cz>
7020
7021         PR ipa/83619
7022         * cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Update edge
7023         frequencies.
7024
7025 2018-01-18  Boris Kolpackov  <boris@codesynthesis.com>
7026
7027         PR other/70268
7028         * common.opt: (-ffile-prefix-map): New option.
7029         * opts.c (common_handle_option): Defer it.
7030         * opts-global.c (handle_common_deferred_options): Handle it.
7031         * debug.h (remap_debug_filename, add_debug_prefix_map): Move to...
7032         * file-prefix-map.h: New file.
7033         (remap_debug_filename, add_debug_prefix_map): ...here.
7034         (add_macro_prefix_map, add_file_prefix_map, remap_macro_filename): New.
7035         * final.c (debug_prefix_map, add_debug_prefix_map
7036         remap_debug_filename): Move to...
7037         * file-prefix-map.c: New file.
7038         (file_prefix_map, add_prefix_map, remap_filename) ...here and rename,
7039         generalize, get rid of alloca(), use strrchr() instead of strchr().
7040         (add_macro_prefix_map, add_debug_prefix_map, add_file_prefix_map):
7041         Implement in terms of add_prefix_map().
7042         (remap_macro_filename, remap_debug_filename): Implement in term of
7043         remap_filename().
7044         * Makefile.in (OBJS, PLUGIN_HEADERS): Add new files.
7045         * builtins.c (fold_builtin_FILE): Call remap_macro_filename().
7046         * dbxout.c: Include file-prefix-map.h.
7047         * varasm.c: Likewise.
7048         * vmsdbgout.c: Likewise.
7049         * xcoffout.c: Likewise.
7050         * dwarf2out.c: Likewise plus omit new options from DW_AT_producer.
7051         * doc/cppopts.texi (-fmacro-prefix-map): Document.
7052         * doc/invoke.texi (-ffile-prefix-map): Document.
7053         (-fdebug-prefix-map): Update description.
7054
7055 2018-01-18  Martin Liska  <mliska@suse.cz>
7056
7057         * config/i386/i386.c (indirect_thunk_name): Document that also
7058         lfence is emitted.
7059         (output_indirect_thunk): Document why both instructions
7060         (pause and lfence) are generated.
7061
7062 2018-01-18  Richard Biener  <rguenther@suse.de>
7063
7064         PR tree-optimization/83887
7065         * graphite-scop-detection.c
7066         (scop_detection::get_nearest_dom_with_single_entry): Remove.
7067         (scop_detection::get_nearest_pdom_with_single_exit): Likewise.
7068         (scop_detection::merge_sese): Re-implement with a flood-fill
7069         algorithm that properly finds a SESE region if it exists.
7070
7071 2018-01-18  Jakub Jelinek  <jakub@redhat.com>
7072
7073         PR c/61240
7074         * match.pd ((P + A) - P, P - (P + A), (P + A) - (P + B)): For
7075         pointer_diff optimizations use view_convert instead of convert.
7076
7077 2018-01-17  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
7078
7079         * config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
7080         Generate different code for -mno-speculate-indirect-jumps.
7081         (*call_value_indirect_nonlocal_sysv<mode>): Likewise.
7082         (*call_indirect_aix<mode>): Disable for
7083         -mno-speculate-indirect-jumps.
7084         (*call_indirect_aix<mode>_nospec): New define_insn.
7085         (*call_value_indirect_aix<mode>): Disable for
7086         -mno-speculate-indirect-jumps.
7087         (*call_value_indirect_aix<mode>_nospec): New define_insn.
7088         (*sibcall_nonlocal_sysv<mode>): Generate different code for
7089         -mno-speculate-indirect-jumps.
7090         (*sibcall_value_nonlocal_sysv<mode>): Likewise.
7091
7092 2018-01-17  Michael Meissner  <meissner@linux.vnet.ibm.com>
7093
7094         * config/rs6000/rs6000.c (rs6000_emit_move): If we load or store a
7095         long double type, set the flags for noting the default long double
7096         type, even if we don't pass or return a long double type.
7097
7098 2018-01-17  Jan Hubicka  <hubicka@ucw.cz>
7099
7100         PR ipa/83051
7101         * ipa-inline.c (flatten_function): Do not overwrite final inlining
7102         failure.
7103
7104 2018-01-17  Will Schmidt  <will_schmidt@vnet.ibm.com>
7105
7106         * config/rs6000/rs6000.c (rs6000_gimple_builtin): Add gimple folding
7107         support for merge[hl].
7108         (fold_mergehl_helper): New helper function.
7109         (tree-vector-builder.h): New #include for tree_vector_builder usage.
7110         * config/rs6000/altivec.md (altivec_vmrghw_direct): Add xxmrghw insn.
7111         (altivec_vmrglw_direct): Add xxmrglw insn.
7112
7113 2018-01-17  Andrew Waterman  <andrew@sifive.com>
7114
7115         * config/riscv/riscv.c (riscv_conditional_register_usage): If
7116         UNITS_PER_FP_ARG is 0, set call_used_regs to 1 for all FP regs.
7117
7118 2018-01-17  David Malcolm  <dmalcolm@redhat.com>
7119
7120         PR lto/83121
7121         * ipa-devirt.c (add_type_duplicate): When comparing memory layout,
7122         call the lto_location_cache before reading the
7123         DECL_SOURCE_LOCATION of the types.
7124
7125 2018-01-17  Wilco Dijkstra  <wdijkstr@arm.com>
7126             Richard Sandiford  <richard.sandiford@linaro.org>
7127
7128         * config/aarch64/aarch64.md (movti_aarch64): Use Uti constraint.
7129         * config/aarch64/aarch64.c (aarch64_mov128_immediate): New function.
7130         (aarch64_legitimate_constant_p): Just support CONST_DOUBLE
7131         SF/DF/TF mode to avoid creating illegal CONST_WIDE_INT immediates.
7132         * config/aarch64/aarch64-protos.h (aarch64_mov128_immediate):
7133         Add declaration.
7134         * config/aarch64/constraints.md (aarch64_movti_operand):
7135         Limit immediates.
7136         * config/aarch64/predicates.md (Uti): Add new constraint.
7137
7138 2018-01-17 Carl Love  <cel@us.ibm.com>
7139
7140         * config/rs6000/vsx.md (define_expand xl_len_r,
7141         define_expand stxvl, define_expand *stxvl): Add match_dup argument.
7142         (define_insn): Add, match_dup 1 argument to define_insn stxvll and
7143         lxvll.
7144         (define_expand, define_insn): Move the shift left from  the
7145         define_insn to the define_expand for lxvl and stxvl instructions.
7146         * config/rs6000/rs6000-builtin.def (BU_P9V_64BIT_VSX_2): Change LXVL
7147         and XL_LEN_R definitions to PURE.
7148
7149 2018-01-17  Uros Bizjak  <ubizjak@gmail.com>
7150
7151         * config/i386/i386.c (indirect_thunk_name): Declare regno
7152         as unsigned int.  Compare regno with INVALID_REGNUM.
7153         (output_indirect_thunk): Ditto.
7154         (output_indirect_thunk_function): Ditto.
7155         (ix86_code_end): Declare regno as unsigned int.  Use INVALID_REGNUM
7156         in the call to output_indirect_thunk_function.
7157
7158 2018-01-17  Richard Sandiford  <richard.sandiford@linaro.org>
7159
7160         PR middle-end/83884
7161         * expr.c (expand_expr_real_1): Use the size of GET_MODE (op0)
7162         rather than the size of inner_type to determine the stack slot size
7163         when handling VIEW_CONVERT_EXPRs on strict-alignment targets.
7164
7165 2018-01-16  Sebastian Peryt  <sebastian.peryt@intel.com>
7166
7167         PR target/83546
7168         * config/i386/i386.c (ix86_option_override_internal): Add PTA_RDRND
7169         to PTA_SILVERMONT.
7170
7171 2018-01-16  Michael Meissner  <meissner@linux.vnet.ibm.com>
7172
7173         * config.gcc (powerpc*-linux*-*): Add support for 64-bit little
7174         endian Linux systems to optionally enable multilibs for selecting
7175         the long double type if the user configured an explicit type.
7176         * config/rs6000/rs6000.h (TARGET_IEEEQUAD_MULTILIB): Indicate we
7177         have no long double multilibs if not defined.
7178         * config/rs6000/rs6000.c (rs6000_option_override_internal): Do not
7179         warn if the user used -mabi={ieee,ibm}longdouble and we built
7180         multilibs for long double.
7181         * config/rs6000/linux64.h (MULTILIB_DEFAULTS_IEEE): Define as the
7182         appropriate multilib option.
7183         (MULTILIB_DEFAULTS): Add MULTILIB_DEFAULTS_IEEE to the default
7184         multilib options.
7185         * config/rs6000/t-ldouble-linux64le-ibm: New configuration files
7186         for building long double multilibs.
7187         * config/rs6000/t-ldouble-linux64le-ieee: Likewise.
7188
7189 2018-01-16  John David Anglin  <danglin@gcc.gnu.org>
7190
7191         * config.gcc (hppa*-*-linux*): Change callee copies ABI to caller
7192         copies.
7193
7194         * config/pa.h (MALLOC_ABI_ALIGNMENT): Set 32-bit alignment default to
7195         64 bits.
7196         * config/pa/pa32-linux.h (MALLOC_ABI_ALIGNMENT): Set alignment to
7197         128 bits.
7198
7199         * config/pa/som.h (ASM_DECLARE_FUNCTION_NAME): Cleanup type and mode
7200         variables.
7201
7202         * config/pa/pa.c (pa_function_arg_size): Apply CEIL to GET_MODE_SIZE
7203         return value.
7204
7205 2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>
7206
7207         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): For an
7208         ADDR_EXPR, do not count the offset of a COMPONENT_REF twice.
7209
7210 2018-01-16  Kelvin Nilsen  <kelvin@gcc.gnu.org>
7211
7212         * config/rs6000/rs6000-p8swap.c (rs6000_gen_stvx): Generate
7213         different rtl trees depending on TARGET_64BIT.
7214         (rs6000_gen_lvx): Likewise.
7215
7216 2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>
7217
7218         * config/visium/visium.md (nop): Tweak comment.
7219         (hazard_nop): Likewise.
7220
7221 2018-01-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
7222
7223         * config/rs6000/rs6000.c (rs6000_opt_vars): Add entry for
7224         -mspeculate-indirect-jumps.
7225         * config/rs6000/rs6000.md (*call_indirect_elfv2<mode>): Disable
7226         for -mno-speculate-indirect-jumps.
7227         (*call_indirect_elfv2<mode>_nospec): New define_insn.
7228         (*call_value_indirect_elfv2<mode>): Disable for
7229         -mno-speculate-indirect-jumps.
7230         (*call_value_indirect_elfv2<mode>_nospec): New define_insn.
7231         (indirect_jump): Emit different RTL for
7232         -mno-speculate-indirect-jumps.
7233         (*indirect_jump<mode>): Disable for
7234         -mno-speculate-indirect-jumps.
7235         (*indirect_jump<mode>_nospec): New define_insn.
7236         (tablejump): Emit different RTL for
7237         -mno-speculate-indirect-jumps.
7238         (tablejumpsi): Disable for -mno-speculate-indirect-jumps.
7239         (tablejumpsi_nospec): New define_expand.
7240         (tablejumpdi): Disable for -mno-speculate-indirect-jumps.
7241         (tablejumpdi_nospec): New define_expand.
7242         (*tablejump<mode>_internal1): Disable for
7243         -mno-speculate-indirect-jumps.
7244         (*tablejump<mode>_internal1_nospec): New define_insn.
7245         * config/rs6000/rs6000.opt (mspeculate-indirect-jumps): New
7246         option.
7247
7248 2018-01-16  Artyom Skrobov tyomitch@gmail.com
7249
7250         * caller-save.c (insert_save): Drop unnecessary parameter.  All
7251         callers updated.
7252
7253 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
7254             Richard Biener  <rguenth@suse.de>
7255
7256         PR libgomp/83590
7257         * gimplify.c (gimplify_one_sizepos): For is_gimple_constant (expr)
7258         return early, inline manually is_gimple_sizepos.  Make sure if we
7259         call gimplify_expr we don't end up with a gimple constant.
7260         * tree.c (variably_modified_type_p): Don't return true for
7261         is_gimple_constant (_t).  Inline manually is_gimple_sizepos.
7262         * gimplify.h (is_gimple_sizepos): Remove.
7263
7264 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
7265
7266         PR tree-optimization/83857
7267         * tree-vect-loop.c (vect_analyze_loop_operations): Don't call
7268         vectorizable_live_operation for pure SLP statements.
7269         (vectorizable_live_operation): Handle PHIs.
7270
7271 2018-01-16  Richard Biener  <rguenther@suse.de>
7272
7273         PR tree-optimization/83867
7274         * tree-vect-stmts.c (vect_transform_stmt): Precompute
7275         nested_in_vect_loop_p since the scalar stmt may get invalidated.
7276
7277 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
7278
7279         PR c/83844
7280         * stor-layout.c (handle_warn_if_not_align): Use byte_position and
7281         multiple_of_p instead of unchecked tree_to_uhwi and UHWI check.
7282         If off is not INTEGER_CST, issue a may not be aligned warning
7283         rather than isn't aligned.  Use isn%'t rather than isn't.
7284         * fold-const.c (multiple_of_p) <case BIT_AND_EXPR>: Don't fall through
7285         into MULT_EXPR.
7286         <case MULT_EXPR>: Improve the case when bottom and one of the
7287         MULT_EXPR operands are INTEGER_CSTs and bottom is multiple of that
7288         operand, in that case check if the other operand is multiple of
7289         bottom divided by the INTEGER_CST operand.
7290
7291 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
7292
7293         PR target/83858
7294         * config/pa/pa.h (FUNCTION_ARG_SIZE): Delete.
7295         * config/pa/pa-protos.h (pa_function_arg_size): Declare.
7296         * config/pa/som.h (ASM_DECLARE_FUNCTION_NAME): Use
7297         pa_function_arg_size instead of FUNCTION_ARG_SIZE.
7298         * config/pa/pa.c (pa_function_arg_advance): Likewise.
7299         (pa_function_arg, pa_arg_partial_bytes): Likewise.
7300         (pa_function_arg_size): New function.
7301
7302 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
7303
7304         * fold-const.c (fold_ternary_loc): Construct the vec_perm_indices
7305         in a separate statement.
7306
7307 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
7308
7309         PR tree-optimization/83847
7310         * tree-vect-data-refs.c (vect_analyze_data_ref_accesses): Don't
7311         group gathers and scatters.
7312
7313 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
7314
7315         PR rtl-optimization/86620
7316         * params.def (max-sched-ready-insns): Bump minimum value to 1.
7317
7318         PR rtl-optimization/83213
7319         * recog.c (peep2_attempt): Copy over CROSSING_JUMP_P from peepinsn
7320         to last if both are JUMP_INSNs.
7321
7322         PR tree-optimization/83843
7323         * gimple-ssa-store-merging.c
7324         (imm_store_chain_info::output_merged_store): Handle bit_not_p on
7325         store_immediate_info for bswap/nop orig_stores.
7326
7327 2018-01-15  Andrew Waterman  <andrew@sifive.com>
7328
7329         * config/riscv/riscv.c (riscv_rtx_costs) <MULT>: Increase cost if
7330         !TARGET_MUL.
7331         <UDIV>: Increase cost if !TARGET_DIV.
7332
7333 2018-01-15  Segher Boessenkool  <segher@kernel.crashing.org>
7334
7335         * config/rs6000/rs6000.md (define_attr "type"): Remove delayed_cr.
7336         (define_attr "cr_logical_3op"): New.
7337         (cceq_ior_compare): Adjust.
7338         (cceq_ior_compare_complement): Adjust.
7339         (*cceq_rev_compare): Adjust.
7340         * config/rs6000/rs6000.c (rs6000_adjust_cost): Adjust.
7341         (is_cracked_insn): Adjust.
7342         (insn_must_be_first_in_group): Adjust.
7343         * config/rs6000/40x.md: Adjust.
7344         * config/rs6000/440.md: Adjust.
7345         * config/rs6000/476.md: Adjust.
7346         * config/rs6000/601.md: Adjust.
7347         * config/rs6000/603.md: Adjust.
7348         * config/rs6000/6xx.md: Adjust.
7349         * config/rs6000/7450.md: Adjust.
7350         * config/rs6000/7xx.md: Adjust.
7351         * config/rs6000/8540.md: Adjust.
7352         * config/rs6000/cell.md: Adjust.
7353         * config/rs6000/e300c2c3.md: Adjust.
7354         * config/rs6000/e500mc.md: Adjust.
7355         * config/rs6000/e500mc64.md: Adjust.
7356         * config/rs6000/e5500.md: Adjust.
7357         * config/rs6000/e6500.md: Adjust.
7358         * config/rs6000/mpc.md: Adjust.
7359         * config/rs6000/power4.md: Adjust.
7360         * config/rs6000/power5.md: Adjust.
7361         * config/rs6000/power6.md: Adjust.
7362         * config/rs6000/power7.md: Adjust.
7363         * config/rs6000/power8.md: Adjust.
7364         * config/rs6000/power9.md: Adjust.
7365         * config/rs6000/rs64.md: Adjust.
7366         * config/rs6000/titan.md: Adjust.
7367
7368 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
7369
7370         * config/i386/predicates.md (indirect_branch_operand): Rewrite
7371         ix86_indirect_branch_register logic.
7372
7373 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
7374
7375         * config/i386/constraints.md (Bs): Update
7376         ix86_indirect_branch_register check.  Don't check
7377         ix86_indirect_branch_register with GOT_memory_operand.
7378         (Bw): Likewise.
7379         * config/i386/predicates.md (GOT_memory_operand): Don't check
7380         ix86_indirect_branch_register here.
7381         (GOT32_symbol_operand): Likewise.
7382
7383 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
7384
7385         * config/i386/predicates.md (constant_call_address_operand):
7386         Rewrite ix86_indirect_branch_register logic.
7387         (sibcall_insn_operand): Likewise.
7388
7389 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
7390
7391         * config/i386/constraints.md (Bs): Replace
7392         ix86_indirect_branch_thunk_register with
7393         ix86_indirect_branch_register.
7394         (Bw): Likewise.
7395         * config/i386/i386.md (indirect_jump): Likewise.
7396         (tablejump): Likewise.
7397         (*sibcall_memory): Likewise.
7398         (*sibcall_value_memory): Likewise.
7399         Peepholes of indirect call and jump via memory: Likewise.
7400         * config/i386/i386.opt: Likewise.
7401         * config/i386/predicates.md (indirect_branch_operand): Likewise.
7402         (GOT_memory_operand): Likewise.
7403         (call_insn_operand): Likewise.
7404         (sibcall_insn_operand): Likewise.
7405         (GOT32_symbol_operand): Likewise.
7406
7407 2018-01-15  Jakub Jelinek  <jakub@redhat.com>
7408
7409         PR middle-end/83837
7410         * omp-expand.c (expand_omp_atomic_pipeline): Use loaded_val
7411         type rather than type addr's type points to.
7412         (expand_omp_atomic_mutex): Likewise.
7413         (expand_omp_atomic): Likewise.
7414
7415 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
7416
7417         PR target/83839
7418         * config/i386/i386.c (output_indirect_thunk_function): Use
7419         ASM_OUTPUT_LABEL, instead of ASM_OUTPUT_DEF, for TARGET_MACHO
7420         for  __x86_return_thunk.
7421
7422 2018-01-15  Richard Biener  <rguenther@suse.de>
7423
7424         PR middle-end/83850
7425         * expmed.c (extract_bit_field_1): Fix typo.
7426
7427 2018-01-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
7428
7429         PR target/83687
7430         * config/arm/iterators.md (VF): New mode iterator.
7431         * config/arm/neon.md (neon_vabd<mode>_2): Use the above.
7432         Remove integer-related logic from pattern.
7433         (neon_vabd<mode>_3): Likewise.
7434
7435 2018-01-15  Jakub Jelinek  <jakub@redhat.com>
7436
7437         PR middle-end/82694
7438         * common.opt (fstrict-overflow): No longer an alias.
7439         (fwrapv-pointer): New option.
7440         * tree.h (TYPE_OVERFLOW_WRAPS, TYPE_OVERFLOW_UNDEFINED): Define
7441         also for pointer types based on flag_wrapv_pointer.
7442         * opts.c (common_handle_option) <case OPT_fstrict_overflow>: Set
7443         opts->x_flag_wrap[pv] to !value, clear opts->x_flag_trapv if
7444         opts->x_flag_wrapv got set.
7445         * fold-const.c (fold_comparison, fold_binary_loc): Revert 2017-08-01
7446         changes, just use TYPE_OVERFLOW_UNDEFINED on pointer type instead of
7447         POINTER_TYPE_OVERFLOW_UNDEFINED.
7448         * match.pd: Likewise in address comparison pattern.
7449         * doc/invoke.texi: Document -fwrapv and -fstrict-overflow.
7450
7451 2018-01-15  Richard Biener  <rguenther@suse.de>
7452
7453         PR lto/83804
7454         * tree.c (free_lang_data_in_type): Always unlink TYPE_DECLs
7455         from TYPE_FIELDS.  Free TYPE_BINFO if not used by devirtualization.
7456         Reset type names to their identifier if their TYPE_DECL doesn't
7457         have linkage (and thus is used for ODR and devirt).
7458         (save_debug_info_for_decl): Remove.
7459         (save_debug_info_for_type): Likewise.
7460         (add_tree_to_fld_list): Adjust.
7461         * tree-pretty-print.c (dump_generic_node): Make dumping of
7462         type names more robust.
7463
7464 2018-01-15  Richard Biener  <rguenther@suse.de>
7465
7466         * BASE-VER: Bump to 8.0.1.
7467
7468 2018-01-14  Martin Sebor  <msebor@redhat.com>
7469
7470         PR other/83508
7471         * builtins.c (check_access): Avoid warning when the no-warning bit
7472         is set.
7473
7474 2018-01-14  Cory Fields  <cory-nospam-@coryfields.com>
7475
7476         * tree-ssa-loop-im.c (sort_bbs_in_loop_postorder_cmp): Stabilize sort.
7477         * ira-color (allocno_hard_regs_compare): Likewise.
7478
7479 2018-01-14  Nathan Rossi  <nathan@nathanrossi.com>
7480
7481         PR target/83013
7482         * config/microblaze/microblaze.c (microblaze_asm_output_ident):
7483         Use .pushsection/.popsection.
7484
7485 2018-01-14  Martin Sebor  <msebor@redhat.com>
7486
7487         PR c++/81327
7488         * doc/invoke.texi (-Wlass-memaccess): Document suppression by casting.
7489
7490 2018-01-14  Jakub Jelinek  <jakub@redhat.com>
7491
7492         * config.gcc (i[34567]86-*-*): Remove one duplicate gfniintrin.h
7493         entry from extra_headers.
7494         (x86_64-*-*): Remove two duplicate gfniintrin.h entries from
7495         extra_headers, make the list bitwise identical to the i?86-*-* one.
7496
7497 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
7498
7499         * config/i386/i386.c (ix86_set_indirect_branch_type): Disallow
7500         -mcmodel=large with -mindirect-branch=thunk,
7501         -mindirect-branch=thunk-extern, -mfunction-return=thunk and
7502         -mfunction-return=thunk-extern.
7503         * doc/invoke.texi: Document -mcmodel=large is incompatible with
7504         -mindirect-branch=thunk, -mindirect-branch=thunk-extern,
7505         -mfunction-return=thunk and -mfunction-return=thunk-extern.
7506
7507 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
7508
7509         * config/i386/i386.c (print_reg): Print the name of the full
7510         integer register without '%'.
7511         (ix86_print_operand): Handle 'V'.
7512          * doc/extend.texi: Document 'V' modifier.
7513
7514 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
7515
7516         * config/i386/constraints.md (Bs): Disallow memory operand for
7517         -mindirect-branch-register.
7518         (Bw): Likewise.
7519         * config/i386/predicates.md (indirect_branch_operand): Likewise.
7520         (GOT_memory_operand): Likewise.
7521         (call_insn_operand): Likewise.
7522         (sibcall_insn_operand): Likewise.
7523         (GOT32_symbol_operand): Likewise.
7524         * config/i386/i386.md (indirect_jump): Call convert_memory_address
7525         for -mindirect-branch-register.
7526         (tablejump): Likewise.
7527         (*sibcall_memory): Likewise.
7528         (*sibcall_value_memory): Likewise.
7529         Disallow peepholes of indirect call and jump via memory for
7530         -mindirect-branch-register.
7531         (*call_pop): Replace m with Bw.
7532         (*call_value_pop): Likewise.
7533         (*sibcall_pop_memory): Replace m with Bs.
7534         * config/i386/i386.opt (mindirect-branch-register): New option.
7535         * doc/invoke.texi: Document -mindirect-branch-register option.
7536
7537 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
7538
7539         * config/i386/i386-protos.h (ix86_output_function_return): New.
7540         * config/i386/i386.c (ix86_set_indirect_branch_type): Also
7541         set function_return_type.
7542         (indirect_thunk_name): Add ret_p to indicate thunk for function
7543         return.
7544         (output_indirect_thunk_function): Pass false to
7545         indirect_thunk_name.
7546         (ix86_output_indirect_branch_via_reg): Likewise.
7547         (ix86_output_indirect_branch_via_push): Likewise.
7548         (output_indirect_thunk_function): Create alias for function
7549         return thunk if regno < 0.
7550         (ix86_output_function_return): New function.
7551         (ix86_handle_fndecl_attribute): Handle function_return.
7552         (ix86_attribute_table): Add function_return.
7553         * config/i386/i386.h (machine_function): Add
7554         function_return_type.
7555         * config/i386/i386.md (simple_return_internal): Use
7556         ix86_output_function_return.
7557         (simple_return_internal_long): Likewise.
7558         * config/i386/i386.opt (mfunction-return=): New option.
7559         (indirect_branch): Mention -mfunction-return=.
7560         * doc/extend.texi: Document function_return function attribute.
7561         * doc/invoke.texi: Document -mfunction-return= option.
7562
7563 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
7564
7565         * config/i386/i386-opts.h (indirect_branch): New.
7566         * config/i386/i386-protos.h (ix86_output_indirect_jmp): Likewise.
7567         * config/i386/i386.c (ix86_using_red_zone): Disallow red-zone
7568         with local indirect jump when converting indirect call and jump.
7569         (ix86_set_indirect_branch_type): New.
7570         (ix86_set_current_function): Call ix86_set_indirect_branch_type.
7571         (indirectlabelno): New.
7572         (indirect_thunk_needed): Likewise.
7573         (indirect_thunk_bnd_needed): Likewise.
7574         (indirect_thunks_used): Likewise.
7575         (indirect_thunks_bnd_used): Likewise.
7576         (INDIRECT_LABEL): Likewise.
7577         (indirect_thunk_name): Likewise.
7578         (output_indirect_thunk): Likewise.
7579         (output_indirect_thunk_function): Likewise.
7580         (ix86_output_indirect_branch_via_reg): Likewise.
7581         (ix86_output_indirect_branch_via_push): Likewise.
7582         (ix86_output_indirect_branch): Likewise.
7583         (ix86_output_indirect_jmp): Likewise.
7584         (ix86_code_end): Call output_indirect_thunk_function if needed.
7585         (ix86_output_call_insn): Call ix86_output_indirect_branch if
7586         needed.
7587         (ix86_handle_fndecl_attribute): Handle indirect_branch.
7588         (ix86_attribute_table): Add indirect_branch.
7589         * config/i386/i386.h (machine_function): Add indirect_branch_type
7590         and has_local_indirect_jump.
7591         * config/i386/i386.md (indirect_jump): Set has_local_indirect_jump
7592         to true.
7593         (tablejump): Likewise.
7594         (*indirect_jump): Use ix86_output_indirect_jmp.
7595         (*tablejump_1): Likewise.
7596         (simple_return_indirect_internal): Likewise.
7597         * config/i386/i386.opt (mindirect-branch=): New option.
7598         (indirect_branch): New.
7599         (keep): Likewise.
7600         (thunk): Likewise.
7601         (thunk-inline): Likewise.
7602         (thunk-extern): Likewise.
7603         * doc/extend.texi: Document indirect_branch function attribute.
7604         * doc/invoke.texi: Document -mindirect-branch= option.
7605
7606 2018-01-14  Jan Hubicka  <hubicka@ucw.cz>
7607
7608         PR ipa/83051
7609         * ipa-inline.c (edge_badness): Tolerate roundoff errors.
7610
7611 2018-01-14  Richard Sandiford  <richard.sandiford@linaro.org>
7612
7613         * ipa-inline.c (want_inline_small_function_p): Return false if
7614         inlining has already failed with CIF_FINAL_ERROR.
7615         (update_caller_keys): Call want_inline_small_function_p before
7616         can_inline_edge_p.
7617         (update_callee_keys): Likewise.
7618
7619 2018-01-10  Kelvin Nilsen  <kelvin@gcc.gnu.org>
7620
7621         * config/rs6000/rs6000-p8swap.c (rs6000_sum_of_two_registers_p):
7622         New function.
7623         (rs6000_quadword_masked_address_p): Likewise.
7624         (quad_aligned_load_p): Likewise.
7625         (quad_aligned_store_p): Likewise.
7626         (const_load_sequence_p): Add comment to describe the outer-most loop.
7627         (mimic_memory_attributes_and_flags): New function.
7628         (rs6000_gen_stvx): Likewise.
7629         (replace_swapped_aligned_store): Likewise.
7630         (rs6000_gen_lvx): Likewise.
7631         (replace_swapped_aligned_load): Likewise.
7632         (replace_swapped_load_constant): Capitalize argument name in
7633         comment describing this function.
7634         (rs6000_analyze_swaps): Add a third pass to search for vector loads
7635         and stores that access quad-word aligned addresses and replace
7636         with stvx or lvx instructions when appropriate.
7637         * config/rs6000/rs6000-protos.h (rs6000_sum_of_two_registers_p):
7638         New function prototype.
7639         (rs6000_quadword_masked_address_p): Likewise.
7640         (rs6000_gen_lvx): Likewise.
7641         (rs6000_gen_stvx): Likewise.
7642         * config/rs6000/vsx.md (*vsx_le_perm_load_<mode>): For modes
7643         VSX_D (V2DF, V2DI), modify this split to select lvx instruction
7644         when memory address is aligned.
7645         (*vsx_le_perm_load_<mode>): For modes VSX_W (V4SF, V4SI), modify
7646         this split to select lvx instruction when memory address is aligned.
7647         (*vsx_le_perm_load_v8hi): Modify this split to select lvx
7648         instruction when memory address is aligned.
7649         (*vsx_le_perm_load_v16qi): Likewise.
7650         (four unnamed splitters): Modify to select the stvx instruction
7651         when memory is aligned.
7652
7653 2018-01-13  Jan Hubicka  <hubicka@ucw.cz>
7654
7655         * predict.c (determine_unlikely_bbs): Handle correctly BBs
7656         which appears in the queue multiple times.
7657
7658 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7659             Alan Hayward  <alan.hayward@arm.com>
7660             David Sherwood  <david.sherwood@arm.com>
7661
7662         * tree-vectorizer.h (vec_lower_bound): New structure.
7663         (_loop_vec_info): Add check_nonzero and lower_bounds.
7664         (LOOP_VINFO_CHECK_NONZERO): New macro.
7665         (LOOP_VINFO_LOWER_BOUNDS): Likewise.
7666         (LOOP_REQUIRES_VERSIONING_FOR_ALIAS): Check lower_bounds too.
7667         * tree-data-ref.h (dr_with_seg_len): Add access_size and align
7668         fields.  Make seg_len the distance travelled, not including the
7669         access size.
7670         (dr_direction_indicator): Declare.
7671         (dr_zero_step_indicator): Likewise.
7672         (dr_known_forward_stride_p): Likewise.
7673         * tree-data-ref.c: Include stringpool.h, tree-vrp.h and
7674         tree-ssanames.h.
7675         (runtime_alias_check_p): Allow runtime alias checks with
7676         variable strides.
7677         (operator ==): Compare access_size and align.
7678         (prune_runtime_alias_test_list): Rework for new distinction between
7679         the access_size and seg_len.
7680         (create_intersect_range_checks_index): Likewise.  Cope with polynomial
7681         segment lengths.
7682         (get_segment_min_max): New function.
7683         (create_intersect_range_checks): Use it.
7684         (dr_step_indicator): New function.
7685         (dr_direction_indicator): Likewise.
7686         (dr_zero_step_indicator): Likewise.
7687         (dr_known_forward_stride_p): Likewise.
7688         * tree-loop-distribution.c (data_ref_segment_size): Return
7689         DR_STEP * (niters - 1).
7690         (compute_alias_check_pairs): Update call to the dr_with_seg_len
7691         constructor.
7692         * tree-vect-data-refs.c (vect_check_nonzero_value): New function.
7693         (vect_preserves_scalar_order_p): New function, split out from...
7694         (vect_analyze_data_ref_dependence): ...here.  Check for zero steps.
7695         (vect_vfa_segment_size): Return DR_STEP * (length_factor - 1).
7696         (vect_vfa_access_size): New function.
7697         (vect_vfa_align): Likewise.
7698         (vect_compile_time_alias): Take access_size_a and access_b arguments.
7699         (dump_lower_bound): New function.
7700         (vect_check_lower_bound): Likewise.
7701         (vect_small_gap_p): Likewise.
7702         (vectorizable_with_step_bound_p): Likewise.
7703         (vect_prune_runtime_alias_test_list): Ignore cross-iteration
7704         depencies if the vectorization factor is 1.  Convert the checks
7705         for nonzero steps into checks on the bounds of DR_STEP.  Try using
7706         a bunds check for variable steps if the minimum required step is
7707         relatively small. Update calls to the dr_with_seg_len
7708         constructor and to vect_compile_time_alias.
7709         * tree-vect-loop-manip.c (vect_create_cond_for_lower_bounds): New
7710         function.
7711         (vect_loop_versioning): Call it.
7712         * tree-vect-loop.c (vect_analyze_loop_2): Clear LOOP_VINFO_LOWER_BOUNDS
7713         when retrying.
7714         (vect_estimate_min_profitable_iters): Account for any bounds checks.
7715
7716 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7717             Alan Hayward  <alan.hayward@arm.com>
7718             David Sherwood  <david.sherwood@arm.com>
7719
7720         * doc/sourcebuild.texi (vect_scatter_store): Document.
7721         * optabs.def (scatter_store_optab, mask_scatter_store_optab): New
7722         optabs.
7723         * doc/md.texi (scatter_store@var{m}, mask_scatter_store@var{m}):
7724         Document.
7725         * genopinit.c (main): Add supports_vec_scatter_store and
7726         supports_vec_scatter_store_cached to target_optabs.
7727         * gimple.h (gimple_expr_type): Handle IFN_SCATTER_STORE and
7728         IFN_MASK_SCATTER_STORE.
7729         * internal-fn.def (SCATTER_STORE, MASK_SCATTER_STORE): New internal
7730         functions.
7731         * internal-fn.h (internal_store_fn_p): Declare.
7732         (internal_fn_stored_value_index): Likewise.
7733         * internal-fn.c (scatter_store_direct): New macro.
7734         (expand_scatter_store_optab_fn): New function.
7735         (direct_scatter_store_optab_supported_p): New macro.
7736         (internal_store_fn_p): New function.
7737         (internal_gather_scatter_fn_p): Handle IFN_SCATTER_STORE and
7738         IFN_MASK_SCATTER_STORE.
7739         (internal_fn_mask_index): Likewise.
7740         (internal_fn_stored_value_index): New function.
7741         (internal_gather_scatter_fn_supported_p): Adjust operand numbers
7742         for scatter stores.
7743         * optabs-query.h (supports_vec_scatter_store_p): Declare.
7744         * optabs-query.c (supports_vec_scatter_store_p): New function.
7745         * tree-vectorizer.h (vect_get_store_rhs): Declare.
7746         * tree-vect-data-refs.c (vect_analyze_data_ref_access): Return
7747         true for scatter stores.
7748         (vect_gather_scatter_fn_p): Handle scatter stores too.
7749         (vect_check_gather_scatter): Consider using scatter stores if
7750         supports_vec_scatter_store_p.
7751         * tree-vect-patterns.c (vect_try_gather_scatter_pattern): Handle
7752         scatter stores too.
7753         * tree-vect-stmts.c (exist_non_indexing_operands_for_use_p): Use
7754         internal_fn_stored_value_index.
7755         (check_load_store_masking): Handle scatter stores too.
7756         (vect_get_store_rhs): Make public.
7757         (vectorizable_call): Use internal_store_fn_p.
7758         (vectorizable_store): Handle scatter store internal functions.
7759         (vect_transform_stmt): Compare GROUP_STORE_COUNT with GROUP_SIZE
7760         when deciding whether the end of the group has been reached.
7761         * config/aarch64/aarch64.md (UNSPEC_ST1_SCATTER): New unspec.
7762         * config/aarch64/aarch64-sve.md (scatter_store<mode>): New expander.
7763         (mask_scatter_store<mode>): New insns.
7764
7765 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7766             Alan Hayward  <alan.hayward@arm.com>
7767             David Sherwood  <david.sherwood@arm.com>
7768
7769         * tree-vectorizer.h (vect_gather_scatter_fn_p): Declare.
7770         * tree-vect-data-refs.c (vect_gather_scatter_fn_p): Make public.
7771         * tree-vect-stmts.c (vect_truncate_gather_scatter_offset): New
7772         function.
7773         (vect_use_strided_gather_scatters_p): Take a masked_p argument.
7774         Use vect_truncate_gather_scatter_offset if we can't treat the
7775         operation as a normal gather load or scatter store.
7776         (get_group_load_store_type): Take the gather_scatter_info
7777         as argument.  Try using a gather load or scatter store for
7778         single-element groups.
7779         (get_load_store_type): Update calls to get_group_load_store_type
7780         and vect_use_strided_gather_scatters_p.
7781
7782 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7783             Alan Hayward  <alan.hayward@arm.com>
7784             David Sherwood  <david.sherwood@arm.com>
7785
7786         * tree-vectorizer.h (vect_create_data_ref_ptr): Take an extra
7787         optional tree argument.
7788         * tree-vect-data-refs.c (vect_check_gather_scatter): Check for
7789         null target hooks.
7790         (vect_create_data_ref_ptr): Take the iv_step as an optional argument,
7791         but continue to use the current value as a fallback.
7792         (bump_vector_ptr): Use operand_equal_p rather than tree_int_cst_compare
7793         to compare the updates.
7794         * tree-vect-stmts.c (vect_use_strided_gather_scatters_p): New function.
7795         (get_load_store_type): Use it when handling a strided access.
7796         (vect_get_strided_load_store_ops): New function.
7797         (vect_get_data_ptr_increment): Likewise.
7798         (vectorizable_load): Handle strided gather loads.  Always pass
7799         a step to vect_create_data_ref_ptr and bump_vector_ptr.
7800
7801 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7802             Alan Hayward  <alan.hayward@arm.com>
7803             David Sherwood  <david.sherwood@arm.com>
7804
7805         * doc/md.texi (gather_load@var{m}): Document.
7806         (mask_gather_load@var{m}): Likewise.
7807         * genopinit.c (main): Add supports_vec_gather_load and
7808         supports_vec_gather_load_cached to target_optabs.
7809         * optabs-tree.c (init_tree_optimization_optabs): Use
7810         ggc_cleared_alloc to allocate target_optabs.
7811         * optabs.def (gather_load_optab, mask_gather_laod_optab): New optabs.
7812         * internal-fn.def (GATHER_LOAD, MASK_GATHER_LOAD): New internal
7813         functions.
7814         * internal-fn.h (internal_load_fn_p): Declare.
7815         (internal_gather_scatter_fn_p): Likewise.
7816         (internal_fn_mask_index): Likewise.
7817         (internal_gather_scatter_fn_supported_p): Likewise.
7818         * internal-fn.c (gather_load_direct): New macro.
7819         (expand_gather_load_optab_fn): New function.
7820         (direct_gather_load_optab_supported_p): New macro.
7821         (direct_internal_fn_optab): New function.
7822         (internal_load_fn_p): Likewise.
7823         (internal_gather_scatter_fn_p): Likewise.
7824         (internal_fn_mask_index): Likewise.
7825         (internal_gather_scatter_fn_supported_p): Likewise.
7826         * optabs-query.c (supports_at_least_one_mode_p): New function.
7827         (supports_vec_gather_load_p): Likewise.
7828         * optabs-query.h (supports_vec_gather_load_p): Declare.
7829         * tree-vectorizer.h (gather_scatter_info): Add ifn, element_type
7830         and memory_type field.
7831         (NUM_PATTERNS): Bump to 15.
7832         * tree-vect-data-refs.c: Include internal-fn.h.
7833         (vect_gather_scatter_fn_p): New function.
7834         (vect_describe_gather_scatter_call): Likewise.
7835         (vect_check_gather_scatter): Try using internal functions for
7836         gather loads.  Recognize existing calls to a gather load function.
7837         (vect_analyze_data_refs): Consider using gather loads if
7838         supports_vec_gather_load_p.
7839         * tree-vect-patterns.c (vect_get_load_store_mask): New function.
7840         (vect_get_gather_scatter_offset_type): Likewise.
7841         (vect_convert_mask_for_vectype): Likewise.
7842         (vect_add_conversion_to_patterm): Likewise.
7843         (vect_try_gather_scatter_pattern): Likewise.
7844         (vect_recog_gather_scatter_pattern): New pattern recognizer.
7845         (vect_vect_recog_func_ptrs): Add it.
7846         * tree-vect-stmts.c (exist_non_indexing_operands_for_use_p): Use
7847         internal_fn_mask_index and internal_gather_scatter_fn_p.
7848         (check_load_store_masking): Take the gather_scatter_info as an
7849         argument and handle gather loads.
7850         (vect_get_gather_scatter_ops): New function.
7851         (vectorizable_call): Check internal_load_fn_p.
7852         (vectorizable_load): Likewise.  Handle gather load internal
7853         functions.
7854         (vectorizable_store): Update call to check_load_store_masking.
7855         * config/aarch64/aarch64.md (UNSPEC_LD1_GATHER): New unspec.
7856         * config/aarch64/iterators.md (SVE_S, SVE_D): New mode iterators.
7857         * config/aarch64/predicates.md (aarch64_gather_scale_operand_w)
7858         (aarch64_gather_scale_operand_d): New predicates.
7859         * config/aarch64/aarch64-sve.md (gather_load<mode>): New expander.
7860         (mask_gather_load<mode>): New insns.
7861
7862 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7863             Alan Hayward  <alan.hayward@arm.com>
7864             David Sherwood  <david.sherwood@arm.com>
7865
7866         * optabs.def (fold_left_plus_optab): New optab.
7867         * doc/md.texi (fold_left_plus_@var{m}): Document.
7868         * internal-fn.def (IFN_FOLD_LEFT_PLUS): New internal function.
7869         * internal-fn.c (fold_left_direct): Define.
7870         (expand_fold_left_optab_fn): Likewise.
7871         (direct_fold_left_optab_supported_p): Likewise.
7872         * fold-const-call.c (fold_const_fold_left): New function.
7873         (fold_const_call): Use it to fold CFN_FOLD_LEFT_PLUS.
7874         * tree-parloops.c (valid_reduction_p): New function.
7875         (gather_scalar_reductions): Use it.
7876         * tree-vectorizer.h (FOLD_LEFT_REDUCTION): New vect_reduction_type.
7877         (vect_finish_replace_stmt): Declare.
7878         * tree-vect-loop.c (fold_left_reduction_fn): New function.
7879         (needs_fold_left_reduction_p): New function, split out from...
7880         (vect_is_simple_reduction): ...here.  Accept reductions that
7881         forbid reassociation, but give them type FOLD_LEFT_REDUCTION.
7882         (vect_force_simple_reduction): Also store the reduction type in
7883         the assignment's STMT_VINFO_REDUC_TYPE.
7884         (vect_model_reduction_cost): Handle FOLD_LEFT_REDUCTION.
7885         (merge_with_identity): New function.
7886         (vect_expand_fold_left): Likewise.
7887         (vectorize_fold_left_reduction): Likewise.
7888         (vectorizable_reduction): Handle FOLD_LEFT_REDUCTION.  Leave the
7889         scalar phi in place for it.  Check for target support and reject
7890         cases that would reassociate the operation.  Defer the transform
7891         phase to vectorize_fold_left_reduction.
7892         * config/aarch64/aarch64.md (UNSPEC_FADDA): New unspec.
7893         * config/aarch64/aarch64-sve.md (fold_left_plus_<mode>): New expander.
7894         (*fold_left_plus_<mode>, *pred_fold_left_plus_<mode>): New insns.
7895
7896 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7897
7898         * tree-if-conv.c (predicate_mem_writes): Remove redundant
7899         call to ifc_temp_var.
7900
7901 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7902             Alan Hayward  <alan.hayward@arm.com>
7903             David Sherwood  <david.sherwood@arm.com>
7904
7905         * target.def (legitimize_address_displacement): Take the original
7906         offset as a poly_int.
7907         * targhooks.h (default_legitimize_address_displacement): Update
7908         accordingly.
7909         * targhooks.c (default_legitimize_address_displacement): Likewise.
7910         * doc/tm.texi: Regenerate.
7911         * lra-constraints.c (base_plus_disp_to_reg): Take the displacement
7912         as an argument, moving assert of ad->disp == ad->disp_term to...
7913         (process_address_1): ...here.  Update calls to base_plus_disp_to_reg.
7914         Try calling targetm.legitimize_address_displacement before expanding
7915         the address rather than afterwards, and adjust for the new interface.
7916         * config/aarch64/aarch64.c (aarch64_legitimize_address_displacement):
7917         Match the new hook interface.  Handle SVE addresses.
7918         * config/sh/sh.c (sh_legitimize_address_displacement): Make the
7919         new hook interface.
7920
7921 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7922
7923         * Makefile.in (OBJS): Add early-remat.o.
7924         * target.def (select_early_remat_modes): New hook.
7925         * doc/tm.texi.in (TARGET_SELECT_EARLY_REMAT_MODES): New hook.
7926         * doc/tm.texi: Regenerate.
7927         * targhooks.h (default_select_early_remat_modes): Declare.
7928         * targhooks.c (default_select_early_remat_modes): New function.
7929         * timevar.def (TV_EARLY_REMAT): New timevar.
7930         * passes.def (pass_early_remat): New pass.
7931         * tree-pass.h (make_pass_early_remat): Declare.
7932         * early-remat.c: New file.
7933         * config/aarch64/aarch64.c (aarch64_select_early_remat_modes): New
7934         function.
7935         (TARGET_SELECT_EARLY_REMAT_MODES): Define.
7936
7937 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7938             Alan Hayward  <alan.hayward@arm.com>
7939             David Sherwood  <david.sherwood@arm.com>
7940
7941         * tree-vect-loop-manip.c (vect_gen_scalar_loop_niters): Replace
7942         vfm1 with a bound_epilog parameter.
7943         (vect_do_peeling): Update calls accordingly, and move the prologue
7944         call earlier in the function.  Treat the base bound_epilog as 0 for
7945         fully-masked loops and retain vf - 1 for other loops.  Add 1 to
7946         this base when peeling for gaps.
7947         * tree-vect-loop.c (vect_analyze_loop_2): Allow peeling for gaps
7948         with fully-masked loops.
7949         (vect_estimate_min_profitable_iters): Handle the single peeled
7950         iteration in that case.
7951
7952 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7953             Alan Hayward  <alan.hayward@arm.com>
7954             David Sherwood  <david.sherwood@arm.com>
7955
7956         * tree-vect-data-refs.c (vect_analyze_group_access_1): Allow
7957         single-element interleaving even if the size is not a power of 2.
7958         * tree-vect-stmts.c (get_load_store_type): Disallow elementwise
7959         accesses for single-element interleaving if the group size is
7960         not a power of 2.
7961
7962 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7963             Alan Hayward  <alan.hayward@arm.com>
7964             David Sherwood  <david.sherwood@arm.com>
7965
7966         * doc/md.texi (fold_extract_last_@var{m}): Document.
7967         * doc/sourcebuild.texi (vect_fold_extract_last): Likewise.
7968         * optabs.def (fold_extract_last_optab): New optab.
7969         * internal-fn.def (FOLD_EXTRACT_LAST): New internal function.
7970         * internal-fn.c (fold_extract_direct): New macro.
7971         (expand_fold_extract_optab_fn): Likewise.
7972         (direct_fold_extract_optab_supported_p): Likewise.
7973         * tree-vectorizer.h (EXTRACT_LAST_REDUCTION): New vect_reduction_type.
7974         * tree-vect-loop.c (vect_model_reduction_cost): Handle
7975         EXTRACT_LAST_REDUCTION.
7976         (get_initial_def_for_reduction): Do not create an initial vector
7977         for EXTRACT_LAST_REDUCTION reductions.
7978         (vectorizable_reduction): Leave the scalar phi in place for
7979         EXTRACT_LAST_REDUCTIONs.  Try using EXTRACT_LAST_REDUCTION
7980         ahead of INTEGER_INDUC_COND_REDUCTION.  Do not check for an
7981         epilogue code for EXTRACT_LAST_REDUCTION and defer the
7982         transform phase to vectorizable_condition.
7983         * tree-vect-stmts.c (vect_finish_stmt_generation_1): New function,
7984         split out from...
7985         (vect_finish_stmt_generation): ...here.
7986         (vect_finish_replace_stmt): New function.
7987         (vectorizable_condition): Handle EXTRACT_LAST_REDUCTION.
7988         * config/aarch64/aarch64-sve.md (fold_extract_last_<mode>): New
7989         pattern.
7990         * config/aarch64/aarch64.md (UNSPEC_CLASTB): New unspec.
7991
7992 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7993             Alan Hayward  <alan.hayward@arm.com>
7994             David Sherwood  <david.sherwood@arm.com>
7995
7996         * doc/md.texi (extract_last_@var{m}): Document.
7997         * optabs.def (extract_last_optab): New optab.
7998         * internal-fn.def (EXTRACT_LAST): New internal function.
7999         * internal-fn.c (cond_unary_direct): New macro.
8000         (expand_cond_unary_optab_fn): Likewise.
8001         (direct_cond_unary_optab_supported_p): Likewise.
8002         * tree-vect-loop.c (vectorizable_live_operation): Allow fully-masked
8003         loops using EXTRACT_LAST.
8004         * config/aarch64/aarch64-sve.md (aarch64_sve_lastb<mode>): Rename to...
8005         (extract_last_<mode>): ...this optab.
8006         (vec_extract<mode><Vel>): Update accordingly.
8007
8008 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8009             Alan Hayward  <alan.hayward@arm.com>
8010             David Sherwood  <david.sherwood@arm.com>
8011
8012         * target.def (empty_mask_is_expensive): New hook.
8013         * doc/tm.texi.in (TARGET_VECTORIZE_EMPTY_MASK_IS_EXPENSIVE): New hook.
8014         * doc/tm.texi: Regenerate.
8015         * targhooks.h (default_empty_mask_is_expensive): Declare.
8016         * targhooks.c (default_empty_mask_is_expensive): New function.
8017         * tree-vectorizer.c (vectorize_loops): Only call optimize_mask_stores
8018         if the target says that empty masks are expensive.
8019         * config/aarch64/aarch64.c (aarch64_empty_mask_is_expensive):
8020         New function.
8021         (TARGET_VECTORIZE_EMPTY_MASK_IS_EXPENSIVE): Redefine.
8022
8023 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8024             Alan Hayward  <alan.hayward@arm.com>
8025             David Sherwood  <david.sherwood@arm.com>
8026
8027         * tree-vectorizer.h (_loop_vec_info::mask_skip_niters): New field.
8028         (LOOP_VINFO_MASK_SKIP_NITERS): New macro.
8029         (vect_use_loop_mask_for_alignment_p): New function.
8030         (vect_prepare_for_masked_peels, vect_gen_while_not): Declare.
8031         * tree-vect-loop-manip.c (vect_set_loop_masks_directly): Add an
8032         niters_skip argument.  Make sure that the first niters_skip elements
8033         of the first iteration are inactive.
8034         (vect_set_loop_condition_masked): Handle LOOP_VINFO_MASK_SKIP_NITERS.
8035         Update call to vect_set_loop_masks_directly.
8036         (get_misalign_in_elems): New function, split out from...
8037         (vect_gen_prolog_loop_niters): ...here.
8038         (vect_update_init_of_dr): Take a code argument that specifies whether
8039         the adjustment should be added or subtracted.
8040         (vect_update_init_of_drs): Likewise.
8041         (vect_prepare_for_masked_peels): New function.
8042         (vect_do_peeling): Skip prologue peeling if we're using a mask
8043         instead.  Update call to vect_update_inits_of_drs.
8044         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
8045         mask_skip_niters.
8046         (vect_analyze_loop_2): Allow fully-masked loops with peeling for
8047         alignment.  Do not include the number of peeled iterations in
8048         the minimum threshold in that case.
8049         (vectorizable_induction): Adjust the start value down by
8050         LOOP_VINFO_MASK_SKIP_NITERS iterations.
8051         (vect_transform_loop): Call vect_prepare_for_masked_peels.
8052         Take the number of skipped iterations into account when calculating
8053         the loop bounds.
8054         * tree-vect-stmts.c (vect_gen_while_not): New function.
8055
8056 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8057             Alan Hayward  <alan.hayward@arm.com>
8058             David Sherwood  <david.sherwood@arm.com>
8059
8060         * doc/sourcebuild.texi (vect_fully_masked): Document.
8061         * params.def (PARAM_MIN_VECT_LOOP_BOUND): Change minimum and
8062         default value to 0.
8063         * tree-vect-loop.c (vect_analyze_loop_costing): New function,
8064         split out from...
8065         (vect_analyze_loop_2): ...here. Don't check the vectorization
8066         factor against the number of loop iterations if the loop is
8067         fully-masked.
8068
8069 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8070             Alan Hayward  <alan.hayward@arm.com>
8071             David Sherwood  <david.sherwood@arm.com>
8072
8073         * tree-ssa-loop-ivopts.c (USE_ADDRESS): Split into...
8074         (USE_REF_ADDRESS, USE_PTR_ADDRESS): ...these new use types.
8075         (dump_groups): Update accordingly.
8076         (iv_use::mem_type): New member variable.
8077         (address_p): New function.
8078         (record_use): Add a mem_type argument and initialize the new
8079         mem_type field.
8080         (record_group_use): Add a mem_type argument.  Use address_p.
8081         Remove obsolete null checks of base_object.  Update call to record_use.
8082         (find_interesting_uses_op): Update call to record_group_use.
8083         (find_interesting_uses_cond): Likewise.
8084         (find_interesting_uses_address): Likewise.
8085         (get_mem_type_for_internal_fn): New function.
8086         (find_address_like_use): Likewise.
8087         (find_interesting_uses_stmt): Try find_address_like_use before
8088         calling find_interesting_uses_op.
8089         (addr_offset_valid_p): Use the iv mem_type field as the type
8090         of the addressed memory.
8091         (add_autoinc_candidates): Likewise.
8092         (get_address_cost): Likewise.
8093         (split_small_address_groups_p): Use address_p.
8094         (split_address_groups): Likewise.
8095         (add_iv_candidate_for_use): Likewise.
8096         (autoinc_possible_for_pair): Likewise.
8097         (rewrite_groups): Likewise.
8098         (get_use_type): Check for USE_REF_ADDRESS instead of USE_ADDRESS.
8099         (determine_group_iv_cost): Update after split of USE_ADDRESS.
8100         (get_alias_ptr_type_for_ptr_address): New function.
8101         (rewrite_use_address): Rewrite address uses in calls that were
8102         identified by find_address_like_use.
8103
8104 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8105             Alan Hayward  <alan.hayward@arm.com>
8106             David Sherwood  <david.sherwood@arm.com>
8107
8108         * expr.c (expand_expr_addr_expr_1): Handle ADDR_EXPRs of
8109         TARGET_MEM_REFs.
8110         * gimple-expr.h (is_gimple_addressable: Likewise.
8111         * gimple-expr.c (is_gimple_address): Likewise.
8112         * internal-fn.c (expand_call_mem_ref): New function.
8113         (expand_mask_load_optab_fn): Use it.
8114         (expand_mask_store_optab_fn): Likewise.
8115
8116 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8117             Alan Hayward  <alan.hayward@arm.com>
8118             David Sherwood  <david.sherwood@arm.com>
8119
8120         * doc/md.texi (cond_add@var{mode}, cond_sub@var{mode})
8121         (cond_and@var{mode}, cond_ior@var{mode}, cond_xor@var{mode})
8122         (cond_smin@var{mode}, cond_smax@var{mode}, cond_umin@var{mode})
8123         (cond_umax@var{mode}): Document.
8124         * optabs.def (cond_add_optab, cond_sub_optab, cond_and_optab)
8125         (cond_ior_optab, cond_xor_optab, cond_smin_optab, cond_smax_optab)
8126         (cond_umin_optab, cond_umax_optab): New optabs.
8127         * internal-fn.def (COND_ADD, COND_SUB, COND_MIN, COND_MAX, COND_AND)
8128         (COND_IOR, COND_XOR): New internal functions.
8129         * internal-fn.h (get_conditional_internal_fn): Declare.
8130         * internal-fn.c (cond_binary_direct): New macro.
8131         (expand_cond_binary_optab_fn): Likewise.
8132         (direct_cond_binary_optab_supported_p): Likewise.
8133         (get_conditional_internal_fn): New function.
8134         * tree-vect-loop.c (vectorizable_reduction): Handle fully-masked loops.
8135         Cope with reduction statements that are vectorized as calls rather
8136         than assignments.
8137         * config/aarch64/aarch64-sve.md (cond_<optab><mode>): New insns.
8138         * config/aarch64/iterators.md (UNSPEC_COND_ADD, UNSPEC_COND_SUB)
8139         (UNSPEC_COND_SMAX, UNSPEC_COND_UMAX, UNSPEC_COND_SMIN)
8140         (UNSPEC_COND_UMIN, UNSPEC_COND_AND, UNSPEC_COND_ORR)
8141         (UNSPEC_COND_EOR): New unspecs.
8142         (optab): Add mappings for them.
8143         (SVE_COND_INT_OP, SVE_COND_FP_OP): New int iterators.
8144         (sve_int_op, sve_fp_op): New int attributes.
8145
8146 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8147             Alan Hayward  <alan.hayward@arm.com>
8148             David Sherwood  <david.sherwood@arm.com>
8149
8150         * optabs.def (while_ult_optab): New optab.
8151         * doc/md.texi (while_ult@var{m}@var{n}): Document.
8152         * internal-fn.def (WHILE_ULT): New internal function.
8153         * internal-fn.h (direct_internal_fn_supported_p): New override
8154         that takes two types as argument.
8155         * internal-fn.c (while_direct): New macro.
8156         (expand_while_optab_fn): New function.
8157         (convert_optab_supported_p): Likewise.
8158         (direct_while_optab_supported_p): New macro.
8159         * wide-int.h (wi::udiv_ceil): New function.
8160         * tree-vectorizer.h (rgroup_masks): New structure.
8161         (vec_loop_masks): New typedef.
8162         (_loop_vec_info): Add masks, mask_compare_type, can_fully_mask_p
8163         and fully_masked_p.
8164         (LOOP_VINFO_CAN_FULLY_MASK_P, LOOP_VINFO_FULLY_MASKED_P)
8165         (LOOP_VINFO_MASKS, LOOP_VINFO_MASK_COMPARE_TYPE): New macros.
8166         (vect_max_vf): New function.
8167         (slpeel_make_loop_iterate_ntimes): Delete.
8168         (vect_set_loop_condition, vect_get_loop_mask_type, vect_gen_while)
8169         (vect_halve_mask_nunits, vect_double_mask_nunits): Declare.
8170         (vect_record_loop_mask, vect_get_loop_mask): Likewise.
8171         * tree-vect-loop-manip.c: Include tree-ssa-loop-niter.h,
8172         internal-fn.h, stor-layout.h and optabs-query.h.
8173         (vect_set_loop_mask): New function.
8174         (add_preheader_seq): Likewise.
8175         (add_header_seq): Likewise.
8176         (interleave_supported_p): Likewise.
8177         (vect_maybe_permute_loop_masks): Likewise.
8178         (vect_set_loop_masks_directly): Likewise.
8179         (vect_set_loop_condition_masked): Likewise.
8180         (vect_set_loop_condition_unmasked): New function, split out from
8181         slpeel_make_loop_iterate_ntimes.
8182         (slpeel_make_loop_iterate_ntimes): Rename to..
8183         (vect_set_loop_condition): ...this.  Use vect_set_loop_condition_masked
8184         for fully-masked loops and vect_set_loop_condition_unmasked otherwise.
8185         (vect_do_peeling): Update call accordingly.
8186         (vect_gen_vector_loop_niters): Use VF as the step for fully-masked
8187         loops.
8188         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
8189         mask_compare_type, can_fully_mask_p and fully_masked_p.
8190         (release_vec_loop_masks): New function.
8191         (_loop_vec_info): Use it to free the loop masks.
8192         (can_produce_all_loop_masks_p): New function.
8193         (vect_get_max_nscalars_per_iter): Likewise.
8194         (vect_verify_full_masking): Likewise.
8195         (vect_analyze_loop_2): Save LOOP_VINFO_CAN_FULLY_MASK_P around
8196         retries, and free the mask rgroups before retrying.  Check loop-wide
8197         reasons for disallowing fully-masked loops.  Make the final decision
8198         about whether use a fully-masked loop or not.
8199         (vect_estimate_min_profitable_iters): Do not assume that peeling
8200         for the number of iterations will be needed for fully-masked loops.
8201         (vectorizable_reduction): Disable fully-masked loops.
8202         (vectorizable_live_operation): Likewise.
8203         (vect_halve_mask_nunits): New function.
8204         (vect_double_mask_nunits): Likewise.
8205         (vect_record_loop_mask): Likewise.
8206         (vect_get_loop_mask): Likewise.
8207         (vect_transform_loop): Handle the case in which the final loop
8208         iteration might handle a partial vector.  Call vect_set_loop_condition
8209         instead of slpeel_make_loop_iterate_ntimes.
8210         * tree-vect-stmts.c: Include tree-ssa-loop-niter.h and gimple-fold.h.
8211         (check_load_store_masking): New function.
8212         (prepare_load_store_mask): Likewise.
8213         (vectorizable_store): Handle fully-masked loops.
8214         (vectorizable_load): Likewise.
8215         (supportable_widening_operation): Use vect_halve_mask_nunits for
8216         booleans.
8217         (supportable_narrowing_operation): Likewise vect_double_mask_nunits.
8218         (vect_gen_while): New function.
8219         * config/aarch64/aarch64.md (umax<mode>3): New expander.
8220         (aarch64_uqdec<mode>): New insn.
8221
8222 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8223             Alan Hayward  <alan.hayward@arm.com>
8224             David Sherwood  <david.sherwood@arm.com>
8225
8226         * optabs.def (reduc_and_scal_optab, reduc_ior_scal_optab)
8227         (reduc_xor_scal_optab): New optabs.
8228         * doc/md.texi (reduc_and_scal_@var{m}, reduc_ior_scal_@var{m})
8229         (reduc_xor_scal_@var{m}): Document.
8230         * doc/sourcebuild.texi (vect_logical_reduc): Likewise.
8231         * internal-fn.def (IFN_REDUC_AND, IFN_REDUC_IOR, IFN_REDUC_XOR): New
8232         internal functions.
8233         * fold-const-call.c (fold_const_call): Handle them.
8234         * tree-vect-loop.c (reduction_fn_for_scalar_code): Return the new
8235         internal functions for BIT_AND_EXPR, BIT_IOR_EXPR and BIT_XOR_EXPR.
8236         * config/aarch64/aarch64-sve.md (reduc_<bit_reduc>_scal_<mode>):
8237         (*reduc_<bit_reduc>_scal_<mode>): New patterns.
8238         * config/aarch64/iterators.md (UNSPEC_ANDV, UNSPEC_ORV)
8239         (UNSPEC_XORV): New unspecs.
8240         (optab): Add entries for them.
8241         (BITWISEV): New int iterator.
8242         (bit_reduc_op): New int attributes.
8243
8244 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8245             Alan Hayward  <alan.hayward@arm.com>
8246             David Sherwood  <david.sherwood@arm.com>
8247
8248         * doc/md.texi (vec_shl_insert_@var{m}): New optab.
8249         * internal-fn.def (VEC_SHL_INSERT): New internal function.
8250         * optabs.def (vec_shl_insert_optab): New optab.
8251         * tree-vectorizer.h (can_duplicate_and_interleave_p): Declare.
8252         (duplicate_and_interleave): Likewise.
8253         * tree-vect-loop.c: Include internal-fn.h.
8254         (neutral_op_for_slp_reduction): New function, split out from
8255         get_initial_defs_for_reduction.
8256         (get_initial_def_for_reduction): Handle option 2 for variable-length
8257         vectors by loading the neutral value into a vector and then shifting
8258         the initial value into element 0.
8259         (get_initial_defs_for_reduction): Replace the code argument with
8260         the neutral value calculated by neutral_op_for_slp_reduction.
8261         Use gimple_build_vector for constant-length vectors.
8262         Use IFN_VEC_SHL_INSERT for variable-length vectors if all
8263         but the first group_size elements have a neutral value.
8264         Use duplicate_and_interleave otherwise.
8265         (vect_create_epilog_for_reduction): Take a neutral_op parameter.
8266         Update call to get_initial_defs_for_reduction.  Handle SLP
8267         reductions for variable-length vectors by creating one vector
8268         result for each scalar result, with the elements associated
8269         with other scalar results stubbed out with the neutral value.
8270         (vectorizable_reduction): Call neutral_op_for_slp_reduction.
8271         Require IFN_VEC_SHL_INSERT for double reductions on
8272         variable-length vectors, or SLP reductions that have
8273         a neutral value.  Require can_duplicate_and_interleave_p
8274         support for variable-length unchained SLP reductions if there
8275         is no neutral value, such as for MIN/MAX reductions.  Also require
8276         the number of vector elements to be a multiple of the number of
8277         SLP statements when doing variable-length unchained SLP reductions.
8278         Update call to vect_create_epilog_for_reduction.
8279         * tree-vect-slp.c (can_duplicate_and_interleave_p): Make public
8280         and remove initial values.
8281         (duplicate_and_interleave): Make public.
8282         * config/aarch64/aarch64.md (UNSPEC_INSR): New unspec.
8283         * config/aarch64/aarch64-sve.md (vec_shl_insert_<mode>): New insn.
8284
8285 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8286             Alan Hayward  <alan.hayward@arm.com>
8287             David Sherwood  <david.sherwood@arm.com>
8288
8289         * tree-vect-slp.c: Include gimple-fold.h and internal-fn.h
8290         (can_duplicate_and_interleave_p): New function.
8291         (vect_get_and_check_slp_defs): Take the vector of statements
8292         rather than just the current one.  Remove excess parentheses.
8293         Restriction rejectinon of vect_constant_def and vect_external_def
8294         for variable-length vectors to boolean types, or types for which
8295         can_duplicate_and_interleave_p is false.
8296         (vect_build_slp_tree_2): Update call to vect_get_and_check_slp_defs.
8297         (duplicate_and_interleave): New function.
8298         (vect_get_constant_vectors): Use gimple_build_vector for
8299         constant-length vectors and suitable variable-length constant
8300         vectors.  Use duplicate_and_interleave for other variable-length
8301         vectors.  Don't defer the update when inserting new statements.
8302
8303 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8304             Alan Hayward  <alan.hayward@arm.com>
8305             David Sherwood  <david.sherwood@arm.com>
8306
8307         * tree-vect-loop.c (vect_estimate_min_profitable_iters): Make sure
8308         min_profitable_iters doesn't go negative.
8309
8310 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8311             Alan Hayward  <alan.hayward@arm.com>
8312             David Sherwood  <david.sherwood@arm.com>
8313
8314         * doc/md.texi (vec_mask_load_lanes@var{m}@var{n}): Document.
8315         (vec_mask_store_lanes@var{m}@var{n}): Likewise.
8316         * optabs.def (vec_mask_load_lanes_optab): New optab.
8317         (vec_mask_store_lanes_optab): Likewise.
8318         * internal-fn.def (MASK_LOAD_LANES): New internal function.
8319         (MASK_STORE_LANES): Likewise.
8320         * internal-fn.c (mask_load_lanes_direct): New macro.
8321         (mask_store_lanes_direct): Likewise.
8322         (expand_mask_load_optab_fn): Handle masked operations.
8323         (expand_mask_load_lanes_optab_fn): New macro.
8324         (expand_mask_store_optab_fn): Handle masked operations.
8325         (expand_mask_store_lanes_optab_fn): New macro.
8326         (direct_mask_load_lanes_optab_supported_p): Likewise.
8327         (direct_mask_store_lanes_optab_supported_p): Likewise.
8328         * tree-vectorizer.h (vect_store_lanes_supported): Take a masked_p
8329         parameter.
8330         (vect_load_lanes_supported): Likewise.
8331         * tree-vect-data-refs.c (strip_conversion): New function.
8332         (can_group_stmts_p): Likewise.
8333         (vect_analyze_data_ref_accesses): Use it instead of checking
8334         for a pair of assignments.
8335         (vect_store_lanes_supported): Take a masked_p parameter.
8336         (vect_load_lanes_supported): Likewise.
8337         * tree-vect-loop.c (vect_analyze_loop_2): Update calls to
8338         vect_store_lanes_supported and vect_load_lanes_supported.
8339         * tree-vect-slp.c (vect_analyze_slp_instance): Likewise.
8340         * tree-vect-stmts.c (get_group_load_store_type): Take a masked_p
8341         parameter.  Don't allow gaps for masked accesses.
8342         Use vect_get_store_rhs.  Update calls to vect_store_lanes_supported
8343         and vect_load_lanes_supported.
8344         (get_load_store_type): Take a masked_p parameter and update
8345         call to get_group_load_store_type.
8346         (vectorizable_store): Update call to get_load_store_type.
8347         Handle IFN_MASK_STORE_LANES.
8348         (vectorizable_load): Update call to get_load_store_type.
8349         Handle IFN_MASK_LOAD_LANES.
8350
8351 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8352             Alan Hayward  <alan.hayward@arm.com>
8353             David Sherwood  <david.sherwood@arm.com>
8354
8355         * config/aarch64/aarch64-modes.def: Define x2, x3 and x4 vector
8356         modes for SVE.
8357         * config/aarch64/aarch64-protos.h
8358         (aarch64_sve_struct_memory_operand_p): Declare.
8359         * config/aarch64/iterators.md (SVE_STRUCT): New mode iterator.
8360         (vector_count, insn_length, VSINGLE, vsingle): New mode attributes.
8361         (VPRED, vpred): Handle SVE structure modes.
8362         * config/aarch64/constraints.md (Utx): New constraint.
8363         * config/aarch64/predicates.md (aarch64_sve_struct_memory_operand)
8364         (aarch64_sve_struct_nonimmediate_operand): New predicates.
8365         * config/aarch64/aarch64.md (UNSPEC_LDN, UNSPEC_STN): New unspecs.
8366         * config/aarch64/aarch64-sve.md (mov<mode>, *aarch64_sve_mov<mode>_le)
8367         (*aarch64_sve_mov<mode>_be, pred_mov<mode>): New patterns for
8368         structure modes.  Split into pieces after RA.
8369         (vec_load_lanes<mode><vsingle>, vec_mask_load_lanes<mode><vsingle>)
8370         (vec_store_lanes<mode><vsingle>, vec_mask_store_lanes<mode><vsingle>):
8371         New patterns.
8372         * config/aarch64/aarch64.c (aarch64_classify_vector_mode): Handle
8373         SVE structure modes.
8374         (aarch64_classify_address): Likewise.
8375         (sizetochar): Move earlier in file.
8376         (aarch64_print_operand): Handle SVE register lists.
8377         (aarch64_array_mode): New function.
8378         (aarch64_sve_struct_memory_operand_p): Likewise.
8379         (TARGET_ARRAY_MODE): Redefine.
8380
8381 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8382             Alan Hayward  <alan.hayward@arm.com>
8383             David Sherwood  <david.sherwood@arm.com>
8384
8385         * target.def (array_mode): New target hook.
8386         * doc/tm.texi.in (TARGET_ARRAY_MODE): New hook.
8387         * doc/tm.texi: Regenerate.
8388         * hooks.h (hook_optmode_mode_uhwi_none): Declare.
8389         * hooks.c (hook_optmode_mode_uhwi_none): New function.
8390         * tree-vect-data-refs.c (vect_lanes_optab_supported_p): Use
8391         targetm.array_mode.
8392         * stor-layout.c (mode_for_array): Likewise.  Support polynomial
8393         type sizes.
8394
8395 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8396             Alan Hayward  <alan.hayward@arm.com>
8397             David Sherwood  <david.sherwood@arm.com>
8398
8399         * fold-const.c (fold_binary_loc): Check the argument types
8400         rather than the result type when testing for a vector operation.
8401
8402 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8403
8404         * doc/tm.texi.in (DWARF_LAZY_REGISTER_VALUE): Document.
8405         * doc/tm.texi: Regenerate.
8406
8407 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8408             Alan Hayward  <alan.hayward@arm.com>
8409             David Sherwood  <david.sherwood@arm.com>
8410
8411         * doc/invoke.texi (-msve-vector-bits=): Document new option.
8412         (sve): Document new AArch64 extension.
8413         * doc/md.texi (w): Extend the description of the AArch64
8414         constraint to include SVE vectors.
8415         (Upl, Upa): Document new AArch64 predicate constraints.
8416         * config/aarch64/aarch64-opts.h (aarch64_sve_vector_bits_enum): New
8417         enum.
8418         * config/aarch64/aarch64.opt (sve_vector_bits): New enum.
8419         (msve-vector-bits=): New option.
8420         * config/aarch64/aarch64-option-extensions.def (fp, simd): Disable
8421         SVE when these are disabled.
8422         (sve): New extension.
8423         * config/aarch64/aarch64-modes.def: Define SVE vector and predicate
8424         modes.  Adjust their number of units based on aarch64_sve_vg.
8425         (MAX_BITSIZE_MODE_ANY_MODE): Define.
8426         * config/aarch64/aarch64-protos.h (ADDR_QUERY_ANY): New
8427         aarch64_addr_query_type.
8428         (aarch64_const_vec_all_same_in_range_p, aarch64_sve_pred_mode)
8429         (aarch64_sve_cnt_immediate_p, aarch64_sve_addvl_addpl_immediate_p)
8430         (aarch64_sve_inc_dec_immediate_p, aarch64_add_offset_temporaries)
8431         (aarch64_split_add_offset, aarch64_output_sve_cnt_immediate)
8432         (aarch64_output_sve_addvl_addpl, aarch64_output_sve_inc_dec_immediate)
8433         (aarch64_output_sve_mov_immediate, aarch64_output_ptrue): Declare.
8434         (aarch64_simd_imm_zero_p): Delete.
8435         (aarch64_check_zero_based_sve_index_immediate): Declare.
8436         (aarch64_sve_index_immediate_p, aarch64_sve_arith_immediate_p)
8437         (aarch64_sve_bitmask_immediate_p, aarch64_sve_dup_immediate_p)
8438         (aarch64_sve_cmp_immediate_p, aarch64_sve_float_arith_immediate_p)
8439         (aarch64_sve_float_mul_immediate_p): Likewise.
8440         (aarch64_classify_symbol): Take the offset as a HOST_WIDE_INT
8441         rather than an rtx.
8442         (aarch64_sve_ld1r_operand_p, aarch64_sve_ldr_operand_p): Declare.
8443         (aarch64_expand_mov_immediate): Take a gen_vec_duplicate callback.
8444         (aarch64_emit_sve_pred_move, aarch64_expand_sve_mem_move): Declare.
8445         (aarch64_expand_sve_vec_cmp_int, aarch64_expand_sve_vec_cmp_float)
8446         (aarch64_expand_sve_vcond, aarch64_expand_sve_vec_perm): Declare.
8447         (aarch64_regmode_natural_size): Likewise.
8448         * config/aarch64/aarch64.h (AARCH64_FL_SVE): New macro.
8449         (AARCH64_FL_V8_3, AARCH64_FL_RCPC, AARCH64_FL_DOTPROD): Shift
8450         left one place.
8451         (AARCH64_ISA_SVE, TARGET_SVE): New macros.
8452         (FIXED_REGISTERS, CALL_USED_REGISTERS, REGISTER_NAMES): Add entries
8453         for VG and the SVE predicate registers.
8454         (V_ALIASES): Add a "z"-prefixed alias.
8455         (FIRST_PSEUDO_REGISTER): Change to P15_REGNUM + 1.
8456         (AARCH64_DWARF_VG, AARCH64_DWARF_P0): New macros.
8457         (PR_REGNUM_P, PR_LO_REGNUM_P): Likewise.
8458         (PR_LO_REGS, PR_HI_REGS, PR_REGS): New reg_classes.
8459         (REG_CLASS_NAMES): Add entries for them.
8460         (REG_CLASS_CONTENTS): Likewise.  Update ALL_REGS to include VG
8461         and the predicate registers.
8462         (aarch64_sve_vg): Declare.
8463         (BITS_PER_SVE_VECTOR, BYTES_PER_SVE_VECTOR, BYTES_PER_SVE_PRED)
8464         (SVE_BYTE_MODE, MAX_COMPILE_TIME_VEC_BYTES): New macros.
8465         (REGMODE_NATURAL_SIZE): Define.
8466         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Handle
8467         SVE macros.
8468         * config/aarch64/aarch64.c: Include cfgrtl.h.
8469         (simd_immediate_info): Add a constructor for series vectors,
8470         and an associated step field.
8471         (aarch64_sve_vg): New variable.
8472         (aarch64_dbx_register_number): Handle VG and the predicate registers.
8473         (aarch64_vect_struct_mode_p, aarch64_vector_mode_p): Delete.
8474         (VEC_ADVSIMD, VEC_SVE_DATA, VEC_SVE_PRED, VEC_STRUCT, VEC_ANY_SVE)
8475         (VEC_ANY_DATA, VEC_STRUCT): New constants.
8476         (aarch64_advsimd_struct_mode_p, aarch64_sve_pred_mode_p)
8477         (aarch64_classify_vector_mode, aarch64_vector_data_mode_p)
8478         (aarch64_sve_data_mode_p, aarch64_sve_pred_mode)
8479         (aarch64_get_mask_mode): New functions.
8480         (aarch64_hard_regno_nregs): Handle SVE data modes for FP_REGS
8481         and FP_LO_REGS.  Handle PR_REGS, PR_LO_REGS and PR_HI_REGS.
8482         (aarch64_hard_regno_mode_ok): Handle VG.  Also handle the SVE
8483         predicate modes and predicate registers.  Explicitly restrict
8484         GPRs to modes of 16 bytes or smaller.  Only allow FP registers
8485         to store a vector mode if it is recognized by
8486         aarch64_classify_vector_mode.
8487         (aarch64_regmode_natural_size): New function.
8488         (aarch64_hard_regno_caller_save_mode): Return the original mode
8489         for predicates.
8490         (aarch64_sve_cnt_immediate_p, aarch64_output_sve_cnt_immediate)
8491         (aarch64_sve_addvl_addpl_immediate_p, aarch64_output_sve_addvl_addpl)
8492         (aarch64_sve_inc_dec_immediate_p, aarch64_output_sve_inc_dec_immediate)
8493         (aarch64_add_offset_1_temporaries, aarch64_offset_temporaries): New
8494         functions.
8495         (aarch64_add_offset): Add a temp2 parameter.  Assert that temp1
8496         does not overlap dest if the function is frame-related.  Handle
8497         SVE constants.
8498         (aarch64_split_add_offset): New function.
8499         (aarch64_add_sp, aarch64_sub_sp): Add temp2 parameters and pass
8500         them aarch64_add_offset.
8501         (aarch64_allocate_and_probe_stack_space): Add a temp2 parameter
8502         and update call to aarch64_sub_sp.
8503         (aarch64_add_cfa_expression): New function.
8504         (aarch64_expand_prologue): Pass extra temporary registers to the
8505         functions above.  Handle the case in which we need to emit new
8506         DW_CFA_expressions for registers that were originally saved
8507         relative to the stack pointer, but now have to be expressed
8508         relative to the frame pointer.
8509         (aarch64_output_mi_thunk): Pass extra temporary registers to the
8510         functions above.
8511         (aarch64_expand_epilogue): Likewise.  Prevent inheritance of
8512         IP0 and IP1 values for SVE frames.
8513         (aarch64_expand_vec_series): New function.
8514         (aarch64_expand_sve_widened_duplicate): Likewise.
8515         (aarch64_expand_sve_const_vector): Likewise.
8516         (aarch64_expand_mov_immediate): Add a gen_vec_duplicate parameter.
8517         Handle SVE constants.  Use emit_move_insn to move a force_const_mem
8518         into the register, rather than emitting a SET directly.
8519         (aarch64_emit_sve_pred_move, aarch64_expand_sve_mem_move)
8520         (aarch64_get_reg_raw_mode, offset_4bit_signed_scaled_p)
8521         (offset_6bit_unsigned_scaled_p, aarch64_offset_7bit_signed_scaled_p)
8522         (offset_9bit_signed_scaled_p): New functions.
8523         (aarch64_replicate_bitmask_imm): New function.
8524         (aarch64_bitmask_imm): Use it.
8525         (aarch64_cannot_force_const_mem): Reject expressions involving
8526         a CONST_POLY_INT.  Update call to aarch64_classify_symbol.
8527         (aarch64_classify_index): Handle SVE indices, by requiring
8528         a plain register index with a scale that matches the element size.
8529         (aarch64_classify_address): Handle SVE addresses.  Assert that
8530         the mode of the address is VOIDmode or an integer mode.
8531         Update call to aarch64_classify_symbol.
8532         (aarch64_classify_symbolic_expression): Update call to
8533         aarch64_classify_symbol.
8534         (aarch64_const_vec_all_in_range_p): New function.
8535         (aarch64_print_vector_float_operand): Likewise.
8536         (aarch64_print_operand): Handle 'N' and 'C'.  Use "zN" rather than
8537         "vN" for FP registers with SVE modes.  Handle (const ...) vectors
8538         and the FP immediates 1.0 and 0.5.
8539         (aarch64_print_address_internal): Handle SVE addresses.
8540         (aarch64_print_operand_address): Use ADDR_QUERY_ANY.
8541         (aarch64_regno_regclass): Handle predicate registers.
8542         (aarch64_secondary_reload): Handle big-endian reloads of SVE
8543         data modes.
8544         (aarch64_class_max_nregs): Handle SVE modes and predicate registers.
8545         (aarch64_rtx_costs): Check for ADDVL and ADDPL instructions.
8546         (aarch64_convert_sve_vector_bits): New function.
8547         (aarch64_override_options): Use it to handle -msve-vector-bits=.
8548         (aarch64_classify_symbol): Take the offset as a HOST_WIDE_INT
8549         rather than an rtx.
8550         (aarch64_legitimate_constant_p): Use aarch64_classify_vector_mode.
8551         Handle SVE vector and predicate modes.  Accept VL-based constants
8552         that need only one temporary register, and VL offsets that require
8553         no temporary registers.
8554         (aarch64_conditional_register_usage): Mark the predicate registers
8555         as fixed if SVE isn't available.
8556         (aarch64_vector_mode_supported_p): Use aarch64_classify_vector_mode.
8557         Return true for SVE vector and predicate modes.
8558         (aarch64_simd_container_mode): Take the number of bits as a poly_int64
8559         rather than an unsigned int.  Handle SVE modes.
8560         (aarch64_preferred_simd_mode): Update call accordingly.  Handle
8561         SVE modes.
8562         (aarch64_autovectorize_vector_sizes): Add BYTES_PER_SVE_VECTOR
8563         if SVE is enabled.
8564         (aarch64_sve_index_immediate_p, aarch64_sve_arith_immediate_p)
8565         (aarch64_sve_bitmask_immediate_p, aarch64_sve_dup_immediate_p)
8566         (aarch64_sve_cmp_immediate_p, aarch64_sve_float_arith_immediate_p)
8567         (aarch64_sve_float_mul_immediate_p): New functions.
8568         (aarch64_sve_valid_immediate): New function.
8569         (aarch64_simd_valid_immediate): Use it as the fallback for SVE vectors.
8570         Explicitly reject structure modes.  Check for INDEX constants.
8571         Handle PTRUE and PFALSE constants.
8572         (aarch64_check_zero_based_sve_index_immediate): New function.
8573         (aarch64_simd_imm_zero_p): Delete.
8574         (aarch64_mov_operand_p): Use aarch64_simd_valid_immediate for
8575         vector modes.  Accept constants in the range of CNT[BHWD].
8576         (aarch64_simd_scalar_immediate_valid_for_move): Explicitly
8577         ask for an Advanced SIMD mode.
8578         (aarch64_sve_ld1r_operand_p, aarch64_sve_ldr_operand_p): New functions.
8579         (aarch64_simd_vector_alignment): Handle SVE predicates.
8580         (aarch64_vectorize_preferred_vector_alignment): New function.
8581         (aarch64_simd_vector_alignment_reachable): Use it instead of
8582         the vector size.
8583         (aarch64_shift_truncation_mask): Use aarch64_vector_data_mode_p.
8584         (aarch64_output_sve_mov_immediate, aarch64_output_ptrue): New
8585         functions.
8586         (MAX_VECT_LEN): Delete.
8587         (expand_vec_perm_d): Add a vec_flags field.
8588         (emit_unspec2, aarch64_expand_sve_vec_perm): New functions.
8589         (aarch64_evpc_trn, aarch64_evpc_uzp, aarch64_evpc_zip)
8590         (aarch64_evpc_ext): Don't apply a big-endian lane correction
8591         for SVE modes.
8592         (aarch64_evpc_rev): Rename to...
8593         (aarch64_evpc_rev_local): ...this.  Use a predicated operation for SVE.
8594         (aarch64_evpc_rev_global): New function.
8595         (aarch64_evpc_dup): Enforce a 64-byte range for SVE DUP.
8596         (aarch64_evpc_tbl): Use MAX_COMPILE_TIME_VEC_BYTES instead of
8597         MAX_VECT_LEN.
8598         (aarch64_evpc_sve_tbl): New function.
8599         (aarch64_expand_vec_perm_const_1): Update after rename of
8600         aarch64_evpc_rev.  Handle SVE permutes too, trying
8601         aarch64_evpc_rev_global and using aarch64_evpc_sve_tbl rather
8602         than aarch64_evpc_tbl.
8603         (aarch64_vectorize_vec_perm_const): Initialize vec_flags.
8604         (aarch64_sve_cmp_operand_p, aarch64_unspec_cond_code)
8605         (aarch64_gen_unspec_cond, aarch64_expand_sve_vec_cmp_int)
8606         (aarch64_emit_unspec_cond, aarch64_emit_unspec_cond_or)
8607         (aarch64_emit_inverted_unspec_cond, aarch64_expand_sve_vec_cmp_float)
8608         (aarch64_expand_sve_vcond): New functions.
8609         (aarch64_modes_tieable_p): Use aarch64_vector_data_mode_p instead
8610         of aarch64_vector_mode_p.
8611         (aarch64_dwarf_poly_indeterminate_value): New function.
8612         (aarch64_compute_pressure_classes): Likewise.
8613         (aarch64_can_change_mode_class): Likewise.
8614         (TARGET_GET_RAW_RESULT_MODE, TARGET_GET_RAW_ARG_MODE): Redefine.
8615         (TARGET_VECTORIZE_PREFERRED_VECTOR_ALIGNMENT): Likewise.
8616         (TARGET_VECTORIZE_GET_MASK_MODE): Likewise.
8617         (TARGET_DWARF_POLY_INDETERMINATE_VALUE): Likewise.
8618         (TARGET_COMPUTE_PRESSURE_CLASSES): Likewise.
8619         (TARGET_CAN_CHANGE_MODE_CLASS): Likewise.
8620         * config/aarch64/constraints.md (Upa, Upl, Uav, Uat, Usv, Usi, Utr)
8621         (Uty, Dm, vsa, vsc, vsd, vsi, vsn, vsl, vsm, vsA, vsM, vsN): New
8622         constraints.
8623         (Dn, Dl, Dr): Accept const as well as const_vector.
8624         (Dz): Likewise.  Compare against CONST0_RTX.
8625         * config/aarch64/iterators.md: Refer to "Advanced SIMD" instead
8626         of "vector" where appropriate.
8627         (SVE_ALL, SVE_BH, SVE_BHS, SVE_BHSI, SVE_HSDI, SVE_HSF, SVE_SD)
8628         (SVE_SDI, SVE_I, SVE_F, PRED_ALL, PRED_BHS): New mode iterators.
8629         (UNSPEC_SEL, UNSPEC_ANDF, UNSPEC_IORF, UNSPEC_XORF, UNSPEC_COND_LT)
8630         (UNSPEC_COND_LE, UNSPEC_COND_EQ, UNSPEC_COND_NE, UNSPEC_COND_GE)
8631         (UNSPEC_COND_GT, UNSPEC_COND_LO, UNSPEC_COND_LS, UNSPEC_COND_HS)
8632         (UNSPEC_COND_HI, UNSPEC_COND_UO): New unspecs.
8633         (Vetype, VEL, Vel, VWIDE, Vwide, vw, vwcore, V_INT_EQUIV)
8634         (v_int_equiv): Extend to SVE modes.
8635         (Vesize, V128, v128, Vewtype, V_FP_EQUIV, v_fp_equiv, VPRED): New
8636         mode attributes.
8637         (LOGICAL_OR, SVE_INT_UNARY, SVE_FP_UNARY): New code iterators.
8638         (optab): Handle popcount, smin, smax, umin, umax, abs and sqrt.
8639         (logical_nn, lr, sve_int_op, sve_fp_op): New code attributs.
8640         (LOGICALF, OPTAB_PERMUTE, UNPACK, UNPACK_UNSIGNED, SVE_COND_INT_CMP)
8641         (SVE_COND_FP_CMP): New int iterators.
8642         (perm_hilo): Handle the new unpack unspecs.
8643         (optab, logicalf_op, su, perm_optab, cmp_op, imm_con): New int
8644         attributes.
8645         * config/aarch64/predicates.md (aarch64_sve_cnt_immediate)
8646         (aarch64_sve_addvl_addpl_immediate, aarch64_split_add_offset_immediate)
8647         (aarch64_pluslong_or_poly_operand, aarch64_nonmemory_operand)
8648         (aarch64_equality_operator, aarch64_constant_vector_operand)
8649         (aarch64_sve_ld1r_operand, aarch64_sve_ldr_operand): New predicates.
8650         (aarch64_sve_nonimmediate_operand): Likewise.
8651         (aarch64_sve_general_operand): Likewise.
8652         (aarch64_sve_dup_operand, aarch64_sve_arith_immediate): Likewise.
8653         (aarch64_sve_sub_arith_immediate, aarch64_sve_inc_dec_immediate)
8654         (aarch64_sve_logical_immediate, aarch64_sve_mul_immediate): Likewise.
8655         (aarch64_sve_dup_immediate, aarch64_sve_cmp_vsc_immediate): Likewise.
8656         (aarch64_sve_cmp_vsd_immediate, aarch64_sve_index_immediate): Likewise.
8657         (aarch64_sve_float_arith_immediate): Likewise.
8658         (aarch64_sve_float_arith_with_sub_immediate): Likewise.
8659         (aarch64_sve_float_mul_immediate, aarch64_sve_arith_operand): Likewise.
8660         (aarch64_sve_add_operand, aarch64_sve_logical_operand): Likewise.
8661         (aarch64_sve_lshift_operand, aarch64_sve_rshift_operand): Likewise.
8662         (aarch64_sve_mul_operand, aarch64_sve_cmp_vsc_operand): Likewise.
8663         (aarch64_sve_cmp_vsd_operand, aarch64_sve_index_operand): Likewise.
8664         (aarch64_sve_float_arith_operand): Likewise.
8665         (aarch64_sve_float_arith_with_sub_operand): Likewise.
8666         (aarch64_sve_float_mul_operand): Likewise.
8667         (aarch64_sve_vec_perm_operand): Likewise.
8668         (aarch64_pluslong_operand): Include aarch64_sve_addvl_addpl_immediate.
8669         (aarch64_mov_operand): Accept const_poly_int and const_vector.
8670         (aarch64_simd_lshift_imm, aarch64_simd_rshift_imm): Accept const
8671         as well as const_vector.
8672         (aarch64_simd_imm_zero, aarch64_simd_imm_minus_one): Move earlier
8673         in file.  Use CONST0_RTX and CONSTM1_RTX.
8674         (aarch64_simd_or_scalar_imm_zero): Likewise.  Add match_codes.
8675         (aarch64_simd_reg_or_zero): Accept const as well as const_vector.
8676         Use aarch64_simd_imm_zero.
8677         * config/aarch64/aarch64-sve.md: New file.
8678         * config/aarch64/aarch64.md: Include it.
8679         (VG_REGNUM, P0_REGNUM, P7_REGNUM, P15_REGNUM): New register numbers.
8680         (UNSPEC_REV, UNSPEC_LD1_SVE, UNSPEC_ST1_SVE, UNSPEC_MERGE_PTRUE)
8681         (UNSPEC_PTEST_PTRUE, UNSPEC_UNPACKSHI, UNSPEC_UNPACKUHI)
8682         (UNSPEC_UNPACKSLO, UNSPEC_UNPACKULO, UNSPEC_PACK)
8683         (UNSPEC_FLOAT_CONVERT, UNSPEC_WHILE_LO): New unspec constants.
8684         (sve): New attribute.
8685         (enabled): Disable instructions with the sve attribute unless
8686         TARGET_SVE.
8687         (movqi, movhi): Pass CONST_POLY_INT operaneds through
8688         aarch64_expand_mov_immediate.
8689         (*mov<mode>_aarch64, *movsi_aarch64, *movdi_aarch64): Handle
8690         CNT[BHSD] immediates.
8691         (movti): Split CONST_POLY_INT moves into two halves.
8692         (add<mode>3): Accept aarch64_pluslong_or_poly_operand.
8693         Split additions that need a temporary here if the destination
8694         is the stack pointer.
8695         (*add<mode>3_aarch64): Handle ADDVL and ADDPL immediates.
8696         (*add<mode>3_poly_1): New instruction.
8697         (set_clobber_cc): New expander.
8698
8699 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8700
8701         * simplify-rtx.c (simplify_immed_subreg): Add an inner_bytes
8702         parameter and use it instead of GET_MODE_SIZE (innermode).  Use
8703         inner_bytes * BITS_PER_UNIT instead of GET_MODE_BITSIZE (innermode).
8704         Use CEIL (inner_bytes, GET_MODE_UNIT_SIZE (innermode)) instead of
8705         GET_MODE_NUNITS (innermode).  Also add a first_elem parameter.
8706         Change innermode from fixed_mode_size to machine_mode.
8707         (simplify_subreg): Update call accordingly.  Handle a constant-sized
8708         subreg of a variable-length CONST_VECTOR.
8709
8710 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8711             Alan Hayward  <alan.hayward@arm.com>
8712             David Sherwood  <david.sherwood@arm.com>
8713
8714         * tree-ssa-address.c (mem_ref_valid_without_offset_p): New function.
8715         (add_offset_to_base): New function, split out from...
8716         (create_mem_ref): ...here.  When handling a scale other than 1,
8717         check first whether the address is valid without the offset.
8718         Add it into the base if so, leaving the index and scale as-is.
8719
8720 2018-01-12  Jakub Jelinek  <jakub@redhat.com>
8721
8722         PR c++/83778
8723         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Call
8724         fold_for_warn before checking if arg2 is INTEGER_CST.
8725
8726 2018-01-12  Segher Boessenkool  <segher@kernel.crashing.org>
8727
8728         * config/rs6000/predicates.md (load_multiple_operation): Delete.
8729         (store_multiple_operation): Delete.
8730         * config/rs6000/rs6000-cpus.def (601): Remove MASK_STRING.
8731         * config/rs6000/rs6000-protos.h (rs6000_output_load_multiple): Delete.
8732         * config/rs6000/rs6000-string.c (expand_block_move): Delete everything
8733         guarded by TARGET_STRING.
8734         (rs6000_output_load_multiple): Delete.
8735         * config/rs6000/rs6000.c (rs6000_option_override_internal): Delete
8736         OPTION_MASK_STRING / TARGET_STRING handling.
8737         (print_operand) <'N', 'O'>: Add comment that these are unused now.
8738         (const rs6000_opt_masks) <"string">: Change mask to 0.
8739         * config/rs6000/rs6000.h (TARGET_DEFAULT): Remove MASK_STRING.
8740         (MASK_STRING): Delete.
8741         * config/rs6000/rs6000.md (*mov<mode>_string): Delete TARGET_STRING
8742         parts.  Simplify.
8743         (load_multiple): Delete.
8744         (*ldmsi8): Delete.
8745         (*ldmsi7): Delete.
8746         (*ldmsi6): Delete.
8747         (*ldmsi5): Delete.
8748         (*ldmsi4): Delete.
8749         (*ldmsi3): Delete.
8750         (store_multiple): Delete.
8751         (*stmsi8): Delete.
8752         (*stmsi7): Delete.
8753         (*stmsi6): Delete.
8754         (*stmsi5): Delete.
8755         (*stmsi4): Delete.
8756         (*stmsi3): Delete.
8757         (movmemsi_8reg): Delete.
8758         (corresponding unnamed define_insn): Delete.
8759         (movmemsi_6reg): Delete.
8760         (corresponding unnamed define_insn): Delete.
8761         (movmemsi_4reg): Delete.
8762         (corresponding unnamed define_insn): Delete.
8763         (movmemsi_2reg): Delete.
8764         (corresponding unnamed define_insn): Delete.
8765         (movmemsi_1reg): Delete.
8766         (corresponding unnamed define_insn): Delete.
8767         * config/rs6000/rs6000.opt (mno-string): New.
8768         (mstring): Replace by deprecation warning stub.
8769         * doc/invoke.texi (RS/6000 and PowerPC Options): Delete -mstring.
8770
8771 2018-01-12  Jakub Jelinek  <jakub@redhat.com>
8772
8773         * regrename.c (regrename_do_replace): If replacing the same
8774         reg multiple times, try to reuse last created gen_raw_REG.
8775
8776         PR debug/81155
8777         * bb-reorder.c (pass_partition_blocks::gate): In lto don't partition
8778         main to workaround a bug in GDB.
8779
8780 2018-01-12  Tom de Vries  <tom@codesourcery.com>
8781
8782         PR target/83737
8783         * config.gcc (nvptx*-*-*): Set use_gcc_stdint=wrap.
8784
8785 2018-01-12  Vladimir Makarov  <vmakarov@redhat.com>
8786
8787         PR rtl-optimization/80481
8788         * ira-color.c (get_cap_member): New function.
8789         (allocnos_conflict_by_live_ranges_p): Use it.
8790         (slot_coalesced_allocno_live_ranges_intersect_p): Add assert.
8791         (setup_slot_coalesced_allocno_live_ranges): Ditto.
8792
8793 2018-01-12  Uros Bizjak  <ubizjak@gmail.com>
8794
8795         PR target/83628
8796         * config/alpha/alpha.md (*saddsi_1): New insn_ans_split pattern.
8797         (*saddl_se_1): Ditto.
8798         (*ssubsi_1): Ditto.
8799         (*ssubl_se_1): Ditto.
8800
8801 2018-01-12  Richard Sandiford  <richard.sandiford@linaro.org>
8802
8803         * tree-predcom.c (aff_combination_dr_offset): Use wi::to_poly_widest
8804         rather than wi::to_widest for DR_INITs.
8805         * tree-vect-data-refs.c (vect_find_same_alignment_drs): Use
8806         wi::to_poly_offset rather than wi::to_offset for DR_INIT.
8807         (vect_analyze_data_ref_accesses): Require both DR_INITs to be
8808         INTEGER_CSTs.
8809         (vect_analyze_group_access_1): Note that here.
8810
8811 2018-01-12  Richard Sandiford  <richard.sandiford@linaro.org>
8812
8813         * tree-vectorizer.c (get_vec_alignment_for_array_type): Handle
8814         polynomial type sizes.
8815
8816 2018-01-12  Richard Sandiford  <richard.sandiford@linaro.org>
8817
8818         * gimplify.c (gimple_add_tmp_var_fn): Allow variables to have a
8819         poly_uint64 size, rather than requiring an unsigned HOST_WIDE_INT size.
8820         (gimple_add_tmp_var): Likewise.
8821
8822 2018-01-12  Martin Liska  <mliska@suse.cz>
8823
8824         * gimple.c (gimple_alloc_counts): Use uint64_t instead of int.
8825         (gimple_alloc_sizes): Likewise.
8826         (dump_gimple_statistics): Use PRIu64 in printf format.
8827         * gimple.h: Change uint64_t to int.
8828
8829 2018-01-12  Martin Liska  <mliska@suse.cz>
8830
8831         * tree-core.h: Use uint64_t instead of int.
8832         * tree.c (tree_node_counts): Likewise.
8833         (tree_node_sizes): Likewise.
8834         (dump_tree_statistics): Use PRIu64 in printf format.
8835
8836 2018-01-12  Martin Liska  <mliska@suse.cz>
8837
8838         * Makefile.in: As qsort_chk is implemented in vec.c, add
8839         vec.o to linkage of gencfn-macros.
8840         * tree.c (build_new_poly_int_cst): Add CXX_MEM_STAT_INFO as it's
8841         passing the info to record_node_allocation_statistics.
8842         (test_vector_cst_patterns): Add CXX_MEM_STAT_INFO to declaration
8843         and pass the info.
8844         * ggc-common.c (struct ggc_usage): Add operator== and use
8845         it in operator< and compare function.
8846         * mem-stats.h (struct mem_usage): Likewise.
8847         * vec.c (struct vec_usage): Remove operator< and compare
8848         function. Can be simply inherited.
8849
8850 2018-01-12  Martin Jambor  <mjambor@suse.cz>
8851
8852         PR target/81616
8853         * params.def: New parameter PARAM_AVOID_FMA_MAX_BITS.
8854         * tree-ssa-math-opts.c: Include domwalk.h.
8855         (convert_mult_to_fma_1): New function.
8856         (fma_transformation_info): New type.
8857         (fma_deferring_state): Likewise.
8858         (cancel_fma_deferring): New function.
8859         (result_of_phi): Likewise.
8860         (last_fma_candidate_feeds_initial_phi): Likewise.
8861         (convert_mult_to_fma): Added deferring logic, split actual
8862         transformation to convert_mult_to_fma_1.
8863         (math_opts_dom_walker): New type.
8864         (math_opts_dom_walker::after_dom_children): New method, body moved
8865         here from pass_optimize_widening_mul::execute, added deferring logic
8866         bits.
8867         (pass_optimize_widening_mul::execute): Moved most of code to
8868         math_opts_dom_walker::after_dom_children.
8869         * config/i386/x86-tune.def (X86_TUNE_AVOID_128FMA_CHAINS): New.
8870         * config/i386/i386.c (ix86_option_override_internal): Added
8871         maybe_setting of PARAM_AVOID_FMA_MAX_BITS.
8872
8873 2018-01-12  Richard Biener  <rguenther@suse.de>
8874
8875         PR debug/83157
8876         * dwarf2out.c (gen_variable_die): Do not reset old_die for
8877         inline instance vars.
8878
8879 2018-01-12  Oleg Endo  <olegendo@gcc.gnu.org>
8880
8881         PR target/81819
8882         * config/rx/rx.c (rx_is_restricted_memory_address):
8883         Handle SUBREG case.
8884
8885 2018-01-12  Richard Biener  <rguenther@suse.de>
8886
8887         PR tree-optimization/80846
8888         * target.def (split_reduction): New target hook.
8889         * targhooks.c (default_split_reduction): New function.
8890         * targhooks.h (default_split_reduction): Declare.
8891         * tree-vect-loop.c (vect_create_epilog_for_reduction): If the
8892         target requests first reduce vectors by combining low and high
8893         parts.
8894         * tree-vect-stmts.c (vect_gen_perm_mask_any): Adjust.
8895         (get_vectype_for_scalar_type_and_size): Export.
8896         * tree-vectorizer.h (get_vectype_for_scalar_type_and_size): Declare.
8897         * doc/tm.texi.in (TARGET_VECTORIZE_SPLIT_REDUCTION): Document.
8898         * doc/tm.texi: Regenerate.
8899         * config/i386/i386.c (ix86_split_reduction): Implement
8900         TARGET_VECTORIZE_SPLIT_REDUCTION.
8901
8902 2018-01-12  Eric Botcazou  <ebotcazou@adacore.com>
8903
8904         PR target/83368
8905         * config/sparc/sparc.h (PIC_OFFSET_TABLE_REGNUM): Set to INVALID_REGNUM
8906         in PIC mode except for TARGET_VXWORKS_RTP.
8907         * config/sparc/sparc.c: Include cfgrtl.h.
8908         (TARGET_INIT_PIC_REG): Define.
8909         (TARGET_USE_PSEUDO_PIC_REG): Likewise.
8910         (sparc_pic_register_p): New predicate.
8911         (sparc_legitimate_address_p): Use it.
8912         (sparc_legitimize_pic_address): Likewise.
8913         (sparc_delegitimize_address): Likewise.
8914         (sparc_mode_dependent_address_p): Likewise.
8915         (gen_load_pcrel_sym): Remove 4th parameter.
8916         (load_got_register): Adjust call to above.  Remove obsolete stuff.
8917         (sparc_expand_prologue): Do not call load_got_register here.
8918         (sparc_flat_expand_prologue): Likewise.
8919         (sparc_output_mi_thunk): Set the pic_offset_table_rtx object.
8920         (sparc_use_pseudo_pic_reg): New function.
8921         (sparc_init_pic_reg): Likewise.
8922         * config/sparc/sparc.md (vxworks_load_got): Set the GOT register.
8923         (builtin_setjmp_receiver): Enable only for TARGET_VXWORKS_RTP.
8924
8925 2018-01-12  Christophe Lyon  <christophe.lyon@linaro.org>
8926
8927         * doc/sourcebuild.texi (Effective-Target Keywords, Other attributes):
8928         Add item for branch_cost.
8929
8930 2018-01-12  Eric Botcazou  <ebotcazou@adacore.com>
8931
8932         PR rtl-optimization/83565
8933         * rtlanal.c (nonzero_bits1): On WORD_REGISTER_OPERATIONS machines, do
8934         not extend the result to a larger mode for rotate operations.
8935         (num_sign_bit_copies1): Likewise.
8936
8937 2018-01-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
8938
8939         PR target/40411
8940         * config/sol2.h (STARTFILE_ARCH_SPEC): Don't use with -shared or
8941         -symbolic.
8942         Use values-Xc.o for -pedantic.
8943         Link with values-xpg4.o for C90, values-xpg6.o otherwise.
8944
8945 2018-01-12  Martin Liska  <mliska@suse.cz>
8946
8947         PR ipa/83054
8948         * ipa-devirt.c (final_warning_record::grow_type_warnings):
8949         New function.
8950         (possible_polymorphic_call_targets): Use it.
8951         (ipa_devirt): Likewise.
8952
8953 2018-01-12  Martin Liska  <mliska@suse.cz>
8954
8955         * profile-count.h (enum profile_quality): Use 0 as invalid
8956         enum value of profile_quality.
8957
8958 2018-01-12  Chung-Ju Wu  <jasonwucj@gmail.com>
8959
8960         * doc/invoke.texi (NDS32 Options): Add -mext-perf, -mext-perf2 and
8961         -mext-string options.
8962
8963 2018-01-12  Richard Biener  <rguenther@suse.de>
8964
8965         * lto-streamer-out.c (DFS::DFS_write_tree_body): Process
8966         DECL_DEBUG_EXPR conditional on DECL_HAS_DEBUG_EXPR_P.
8967         * tree-streamer-in.c (lto_input_ts_decl_common_tree_pointers):
8968         Likewise.
8969         * tree-streamer-out.c (write_ts_decl_common_tree_pointers): Likewise.
8970
8971 2018-01-11  Michael Meissner  <meissner@linux.vnet.ibm.com>
8972
8973         * configure.ac (--with-long-double-format): Add support for the
8974         configuration option to change the default long double format on
8975         PowerPC systems.
8976         * config.gcc (powerpc*-linux*-*): Likewise.
8977         * configure: Regenerate.
8978         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): If long
8979         double is IEEE, define __KC__ and __KF__ to allow floatn.h to be
8980         used without modification.
8981
8982 2018-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
8983
8984         * config/rs6000/rs6000-builtin.def (BU_P7_MISC_X): New #define.
8985         (SPEC_BARRIER): New instantiation of BU_P7_MISC_X.
8986         * config/rs6000/rs6000.c (rs6000_expand_builtin): Handle
8987         MISC_BUILTIN_SPEC_BARRIER.
8988         (rs6000_init_builtins): Likewise.
8989         * config/rs6000/rs6000.md (UNSPECV_SPEC_BARRIER): New UNSPECV
8990         enum value.
8991         (speculation_barrier): New define_insn.
8992         * doc/extend.texi: Document __builtin_speculation_barrier.
8993
8994 2018-01-11  Jakub Jelinek  <jakub@redhat.com>
8995
8996         PR target/83203
8997         * config/i386/i386.c (ix86_expand_vector_init_one_nonzero): If one_var
8998         is 0, for V{8,16}S[IF] and V[48]D[IF]mode use gen_vec_set<mode>_0.
8999         * config/i386/sse.md (VI8_AVX_AVX512F, VI4F_256_512): New mode
9000         iterators.
9001         (ssescalarmodesuffix): Add 512-bit vectors.  Use "d" or "q" for
9002         integral modes instead of "ss" and "sd".
9003         (vec_set<mode>_0): New define_insns for 256-bit and 512-bit
9004         vectors with 32-bit and 64-bit elements.
9005         (vecdupssescalarmodesuffix): New mode attribute.
9006         (vec_dup<mode>): Use it.
9007
9008 2018-01-11  H.J. Lu  <hongjiu.lu@intel.com>
9009
9010         PR target/83330
9011         * config/i386/i386.c (ix86_compute_frame_layout): Align stack
9012         frame if argument is passed on stack.
9013
9014 2018-01-11  Jakub Jelinek  <jakub@redhat.com>
9015
9016         PR target/82682
9017         * ree.c (combine_reaching_defs): Optimize also
9018         reg2=exp; reg1=reg2; reg2=any_extend(reg1); into
9019         reg2=any_extend(exp); reg1=reg2;, formatting fix.
9020
9021 2018-01-11  Jan Hubicka  <hubicka@ucw.cz>
9022
9023         PR middle-end/83189
9024         * gimple-ssa-isolate-paths.c (isolate_path): Fix profile update.
9025
9026 2018-01-11  Jan Hubicka  <hubicka@ucw.cz>
9027
9028         PR middle-end/83718
9029         * tree-inline.c (copy_cfg_body): Adjust num&den for scaling
9030         after they are computed.
9031
9032 2018-01-11  Bin Cheng  <bin.cheng@arm.com>
9033
9034         PR tree-optimization/83695
9035         * gimple-loop-linterchange.cc
9036         (tree_loop_interchange::interchange_loops): Call scev_reset_htab to
9037         reset cached scev information after interchange.
9038         (pass_linterchange::execute): Remove call to scev_reset_htab.
9039
9040 2018-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
9041
9042         * config/arm/arm_neon.h (vfmlal_lane_low_u32, vfmlal_lane_high_u32,
9043         vfmlalq_laneq_low_u32, vfmlalq_lane_low_u32, vfmlal_laneq_low_u32,
9044         vfmlalq_laneq_high_u32, vfmlalq_lane_high_u32, vfmlal_laneq_high_u32,
9045         vfmlsl_lane_low_u32, vfmlsl_lane_high_u32, vfmlslq_laneq_low_u32,
9046         vfmlslq_lane_low_u32, vfmlsl_laneq_low_u32, vfmlslq_laneq_high_u32,
9047         vfmlslq_lane_high_u32, vfmlsl_laneq_high_u32): Define.
9048         * config/arm/arm_neon_builtins.def (vfmal_lane_low,
9049         vfmal_lane_lowv4hf, vfmal_lane_lowv8hf, vfmal_lane_high,
9050         vfmal_lane_highv4hf, vfmal_lane_highv8hf, vfmsl_lane_low,
9051         vfmsl_lane_lowv4hf, vfmsl_lane_lowv8hf, vfmsl_lane_high,
9052         vfmsl_lane_highv4hf, vfmsl_lane_highv8hf): New sets of builtins.
9053         * config/arm/iterators.md (VFMLSEL2, vfmlsel2): New mode attributes.
9054         (V_lane_reg): Likewise.
9055         * config/arm/neon.md (neon_vfm<vfml_op>l_lane_<vfml_half><VCVTF:mode>):
9056         New define_expand.
9057         (neon_vfm<vfml_op>l_lane_<vfml_half><vfmlsel2><mode>): Likewise.
9058         (vfmal_lane_low<mode>_intrinsic,
9059         vfmal_lane_low<vfmlsel2><mode>_intrinsic,
9060         vfmal_lane_high<vfmlsel2><mode>_intrinsic,
9061         vfmal_lane_high<mode>_intrinsic, vfmsl_lane_low<mode>_intrinsic,
9062         vfmsl_lane_low<vfmlsel2><mode>_intrinsic,
9063         vfmsl_lane_high<vfmlsel2><mode>_intrinsic,
9064         vfmsl_lane_high<mode>_intrinsic): New define_insns.
9065
9066 2018-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
9067
9068         * config/arm/arm-cpus.in (fp16fml): New feature.
9069         (ALL_SIMD): Add fp16fml.
9070         (armv8.2-a): Add fp16fml as an option.
9071         (armv8.3-a): Likewise.
9072         (armv8.4-a): Add fp16fml as part of fp16.
9073         * config/arm/arm.h (TARGET_FP16FML): Define.
9074         * config/arm/arm-c.c (arm_cpu_builtins): Define __ARM_FEATURE_FP16_FML
9075         when appropriate.
9076         * config/arm/arm-modes.def (V2HF): Define.
9077         * config/arm/arm_neon.h (vfmlal_low_u32, vfmlsl_low_u32,
9078         vfmlal_high_u32, vfmlsl_high_u32, vfmlalq_low_u32,
9079         vfmlslq_low_u32, vfmlalq_high_u32, vfmlslq_high_u32): Define.
9080         * config/arm/arm_neon_builtins.def (vfmal_low, vfmal_high,
9081         vfmsl_low, vfmsl_high): New set of builtins.
9082         * config/arm/iterators.md (PLUSMINUS): New code iterator.
9083         (vfml_op): New code attribute.
9084         (VFMLHALVES): New int iterator.
9085         (VFML, VFMLSEL): New mode attributes.
9086         (V_reg): Define mapping for V2HF.
9087         (V_hi, V_lo): New mode attributes.
9088         (VF_constraint): Likewise.
9089         (vfml_half, vfml_half_selector): New int attributes.
9090         * config/arm/neon.md (neon_vfm<vfml_op>l_<vfml_half><mode>): New
9091         define_expand.
9092         (vfmal_low<mode>_intrinsic, vfmsl_high<mode>_intrinsic,
9093         vfmal_high<mode>_intrinsic, vfmsl_low<mode>_intrinsic):
9094         New define_insn.
9095         * config/arm/t-arm-elf (v8_fps): Add fp16fml.
9096         * config/arm/t-multilib (v8_2_a_simd_variants): Add fp16fml.
9097         * config/arm/unspecs.md (UNSPEC_VFML_LO, UNSPEC_VFML_HI): New unspecs.
9098         * doc/invoke.texi (ARM Options): Document fp16fml.  Update armv8.4-a
9099         documentation.
9100         * doc/sourcebuild.texi (arm_fp16fml_neon_ok, arm_fp16fml_neon):
9101         Document new effective target and option set.
9102
9103 2018-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
9104
9105         * config/arm/arm-cpus.in (armv8_4): New feature.
9106         (ARMv8_4a): New fgroup.
9107         (armv8.4-a): New arch.
9108         * config/arm/arm-tables.opt: Regenerate.
9109         * config/arm/t-aprofile: Add matching rules for -march=armv8.4-a.
9110         * config/arm/t-arm-elf (all_v8_archs): Add armv8.4-a.
9111         * config/arm/t-multilib (v8_4_a_simd_variants): New variable.
9112         Add matching rules for -march=armv8.4-a and extensions.
9113         * doc/invoke.texi (ARM Options): Document -march=armv8.4-a.
9114
9115 2018-01-11  Oleg Endo  <olegendo@gcc.gnu.org>
9116
9117         PR target/81821
9118         * config/rx/rx.md (BW): New mode attribute.
9119         (sync_lock_test_and_setsi): Add mode suffix to insn output.
9120
9121 2018-01-11  Richard Biener  <rguenther@suse.de>
9122
9123         PR tree-optimization/83435
9124         * graphite.c (canonicalize_loop_form): Ignore fake loop exit edges.
9125         * graphite-scop-detection.c (scop_detection::get_sese): Likewise.
9126         * tree-vrp.c (add_assert_info): Drop TREE_OVERFLOW if they appear.
9127
9128 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
9129             Alan Hayward  <alan.hayward@arm.com>
9130             David Sherwood  <david.sherwood@arm.com>
9131
9132         * config/aarch64/aarch64.c (aarch64_address_info): Add a const_offset
9133         field.
9134         (aarch64_classify_address): Initialize it.  Track polynomial offsets.
9135         (aarch64_print_address_internal): Use it to check for a zero offset.
9136
9137 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
9138             Alan Hayward  <alan.hayward@arm.com>
9139             David Sherwood  <david.sherwood@arm.com>
9140
9141         * config/aarch64/aarch64-modes.def (NUM_POLY_INT_COEFFS): Set to 2.
9142         * config/aarch64/aarch64-protos.h (aarch64_initial_elimination_offset):
9143         Return a poly_int64 rather than a HOST_WIDE_INT.
9144         (aarch64_offset_7bit_signed_scaled_p): Take the offset as a poly_int64
9145         rather than a HOST_WIDE_INT.
9146         * config/aarch64/aarch64.h (aarch64_frame): Protect with
9147         HAVE_POLY_INT_H rather than HOST_WIDE_INT.  Change locals_offset,
9148         hard_fp_offset, frame_size, initial_adjust, callee_offset and
9149         final_offset from HOST_WIDE_INT to poly_int64.
9150         * config/aarch64/aarch64-builtins.c (aarch64_simd_expand_args): Use
9151         to_constant when getting the number of units in an Advanced SIMD
9152         mode.
9153         (aarch64_builtin_vectorized_function): Check for a constant number
9154         of units.
9155         * config/aarch64/aarch64-simd.md (mov<mode>): Handle polynomial
9156         GET_MODE_SIZE.
9157         (aarch64_ld<VSTRUCT:nregs>_lane<VALLDIF:mode>): Use the nunits
9158         attribute instead of GET_MODE_NUNITS.
9159         * config/aarch64/aarch64.c (aarch64_hard_regno_nregs)
9160         (aarch64_class_max_nregs): Use the constant_lowest_bound of the
9161         GET_MODE_SIZE for fixed-size registers.
9162         (aarch64_const_vec_all_same_in_range_p): Use const_vec_duplicate_p.
9163         (aarch64_hard_regno_call_part_clobbered, aarch64_classify_index)
9164         (aarch64_mode_valid_for_sched_fusion_p, aarch64_classify_address)
9165         (aarch64_legitimize_address_displacement, aarch64_secondary_reload)
9166         (aarch64_print_operand, aarch64_print_address_internal)
9167         (aarch64_address_cost, aarch64_rtx_costs, aarch64_register_move_cost)
9168         (aarch64_short_vector_p, aapcs_vfp_sub_candidate)
9169         (aarch64_simd_attr_length_rglist, aarch64_operands_ok_for_ldpstp):
9170         Handle polynomial GET_MODE_SIZE.
9171         (aarch64_hard_regno_caller_save_mode): Likewise.  Return modes
9172         wider than SImode without modification.
9173         (tls_symbolic_operand_type): Use strip_offset instead of split_const.
9174         (aarch64_pass_by_reference, aarch64_layout_arg, aarch64_pad_reg_upward)
9175         (aarch64_gimplify_va_arg_expr): Assert that we don't yet handle
9176         passing and returning SVE modes.
9177         (aarch64_function_value, aarch64_layout_arg): Use gen_int_mode
9178         rather than GEN_INT.
9179         (aarch64_emit_probe_stack_range): Take the size as a poly_int64
9180         rather than a HOST_WIDE_INT, but call sorry if it isn't constant.
9181         (aarch64_allocate_and_probe_stack_space): Likewise.
9182         (aarch64_layout_frame): Cope with polynomial offsets.
9183         (aarch64_save_callee_saves, aarch64_restore_callee_saves): Take the
9184         start_offset as a poly_int64 rather than a HOST_WIDE_INT.  Track
9185         polynomial offsets.
9186         (offset_9bit_signed_unscaled_p, offset_12bit_unsigned_scaled_p)
9187         (aarch64_offset_7bit_signed_scaled_p): Take the offset as a
9188         poly_int64 rather than a HOST_WIDE_INT.
9189         (aarch64_get_separate_components, aarch64_process_components)
9190         (aarch64_expand_prologue, aarch64_expand_epilogue)
9191         (aarch64_use_return_insn_p): Handle polynomial frame offsets.
9192         (aarch64_anchor_offset): New function, split out from...
9193         (aarch64_legitimize_address): ...here.
9194         (aarch64_builtin_vectorization_cost): Handle polynomial
9195         TYPE_VECTOR_SUBPARTS.
9196         (aarch64_simd_check_vect_par_cnst_half): Handle polynomial
9197         GET_MODE_NUNITS.
9198         (aarch64_simd_make_constant, aarch64_expand_vector_init): Get the
9199         number of elements from the PARALLEL rather than the mode.
9200         (aarch64_shift_truncation_mask): Use GET_MODE_UNIT_BITSIZE
9201         rather than GET_MODE_BITSIZE.
9202         (aarch64_evpc_trn, aarch64_evpc_uzp, aarch64_evpc_ext)
9203         (aarch64_evpc_rev, aarch64_evpc_dup, aarch64_evpc_zip)
9204         (aarch64_expand_vec_perm_const_1): Handle polynomial
9205         d->perm.length () and d->perm elements.
9206         (aarch64_evpc_tbl): Likewise.  Use nelt rather than GET_MODE_NUNITS.
9207         Apply to_constant to d->perm elements.
9208         (aarch64_simd_valid_immediate, aarch64_vec_fpconst_pow_of_2): Handle
9209         polynomial CONST_VECTOR_NUNITS.
9210         (aarch64_move_pointer): Take amount as a poly_int64 rather
9211         than an int.
9212         (aarch64_progress_pointer): Avoid temporary variable.
9213         * config/aarch64/aarch64.md (aarch64_<crc_variant>): Use
9214         the mode attribute instead of GET_MODE.
9215
9216 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
9217             Alan Hayward  <alan.hayward@arm.com>
9218             David Sherwood  <david.sherwood@arm.com>
9219
9220         * config/aarch64/aarch64.c (aarch64_force_temporary): Assert that
9221         x exists before using it.
9222         (aarch64_add_constant_internal): Rename to...
9223         (aarch64_add_offset_1): ...this.  Replace regnum with separate
9224         src and dest rtxes.  Handle the case in which they're different,
9225         including when the offset is zero.  Replace scratchreg with an rtx.
9226         Use 2 additions if there is no spare register into which we can
9227         move a 16-bit constant.
9228         (aarch64_add_constant): Delete.
9229         (aarch64_add_offset): Replace reg with separate src and dest
9230         rtxes.  Take a poly_int64 offset instead of a HOST_WIDE_INT.
9231         Use aarch64_add_offset_1.
9232         (aarch64_add_sp, aarch64_sub_sp): Take the scratch register as
9233         an rtx rather than an int.  Take the delta as a poly_int64
9234         rather than a HOST_WIDE_INT.  Use aarch64_add_offset.
9235         (aarch64_expand_mov_immediate): Update uses of aarch64_add_offset.
9236         (aarch64_expand_prologue): Update calls to aarch64_sub_sp,
9237         aarch64_allocate_and_probe_stack_space and aarch64_add_offset.
9238         (aarch64_expand_epilogue): Update calls to aarch64_add_offset
9239         and aarch64_add_sp.
9240         (aarch64_output_mi_thunk): Use aarch64_add_offset rather than
9241         aarch64_add_constant.
9242
9243 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
9244
9245         * config/aarch64/aarch64.c (aarch64_reinterpret_float_as_int):
9246         Use scalar_float_mode.
9247
9248 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
9249
9250         * config/aarch64/aarch64-simd.md
9251         (aarch64_fml<f16mac1>l<f16quad>_low<mode>): Avoid GET_MODE_NUNITS.
9252         (aarch64_fml<f16mac1>l<f16quad>_high<mode>): Likewise.
9253         (aarch64_fml<f16mac1>l_lane_lowv2sf): Likewise.
9254         (aarch64_fml<f16mac1>l_lane_highv2sf): Likewise.
9255         (aarch64_fml<f16mac1>lq_laneq_lowv4sf): Likewise.
9256         (aarch64_fml<f16mac1>lq_laneq_highv4sf): Likewise.
9257         (aarch64_fml<f16mac1>l_laneq_lowv2sf): Likewise.
9258         (aarch64_fml<f16mac1>l_laneq_highv2sf): Likewise.
9259         (aarch64_fml<f16mac1>lq_lane_lowv4sf): Likewise.
9260         (aarch64_fml<f16mac1>lq_lane_highv4sf): Likewise.
9261
9262 2018-01-11  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
9263
9264         PR target/83514
9265         * config/arm/arm.c (arm_declare_function_name): Set arch_to_print if
9266         targ_options->x_arm_arch_string is non NULL.
9267
9268 2018-01-11  Tamar Christina  <tamar.christina@arm.com>
9269
9270         * config/aarch64/aarch64.h
9271         (AARCH64_FL_FOR_ARCH8_4): Add  AARCH64_FL_DOTPROD.
9272
9273 2018-01-11  Sudakshina Das  <sudi.das@arm.com>
9274
9275         PR target/82096
9276         * expmed.c (emit_store_flag_force): Swap if const op0
9277         and change VOIDmode to mode of op0.
9278
9279 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
9280
9281         PR rtl-optimization/83761
9282         * caller-save.c (replace_reg_with_saved_mem): Pass bits rather
9283         than bytes to mode_for_size.
9284
9285 2018-01-10  Jan Hubicka  <hubicka@ucw.cz>
9286
9287         PR middle-end/83189
9288         * gfortran.fortran-torture/compile/pr83189.f90: New testcase.
9289         * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Handle zero
9290         profile.
9291
9292 2018-01-10  Jan Hubicka  <hubicka@ucw.cz>
9293
9294         PR middle-end/83575
9295         * cfgrtl.c (rtl_verify_edges): Only verify fixability of partition
9296         when in layout mode.
9297         (cfg_layout_finalize): Do not verify cfg before we are out of layout.
9298         * cfgcleanup.c (try_optimize_cfg): Only verify flow info when doing
9299         partition fixup.
9300
9301 2018-01-10  Michael Collison  <michael.collison@arm.com>
9302
9303         * config/aarch64/aarch64-modes.def (V2HF): New VECTOR_MODE.
9304         * config/aarch64/aarch64-option-extension.def: Add
9305         AARCH64_OPT_EXTENSION of 'fp16fml'.
9306         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
9307         (__ARM_FEATURE_FP16_FML): Define if TARGET_F16FML is true.
9308         * config/aarch64/predicates.md (aarch64_lane_imm3): New predicate.
9309         * config/aarch64/constraints.md (Ui7): New constraint.
9310         * config/aarch64/iterators.md (VFMLA_W): New mode iterator.
9311         (VFMLA_SEL_W): Ditto.
9312         (f16quad): Ditto.
9313         (f16mac1): Ditto.
9314         (VFMLA16_LOW): New int iterator.
9315         (VFMLA16_HIGH): Ditto.
9316         (UNSPEC_FMLAL): New unspec.
9317         (UNSPEC_FMLSL): Ditto.
9318         (UNSPEC_FMLAL2): Ditto.
9319         (UNSPEC_FMLSL2): Ditto.
9320         (f16mac): New code attribute.
9321         * config/aarch64/aarch64-simd-builtins.def
9322         (aarch64_fmlal_lowv2sf): Ditto.
9323         (aarch64_fmlsl_lowv2sf): Ditto.
9324         (aarch64_fmlalq_lowv4sf): Ditto.
9325         (aarch64_fmlslq_lowv4sf): Ditto.
9326         (aarch64_fmlal_highv2sf): Ditto.
9327         (aarch64_fmlsl_highv2sf): Ditto.
9328         (aarch64_fmlalq_highv4sf): Ditto.
9329         (aarch64_fmlslq_highv4sf): Ditto.
9330         (aarch64_fmlal_lane_lowv2sf): Ditto.
9331         (aarch64_fmlsl_lane_lowv2sf): Ditto.
9332         (aarch64_fmlal_laneq_lowv2sf): Ditto.
9333         (aarch64_fmlsl_laneq_lowv2sf): Ditto.
9334         (aarch64_fmlalq_lane_lowv4sf): Ditto.
9335         (aarch64_fmlsl_lane_lowv4sf): Ditto.
9336         (aarch64_fmlalq_laneq_lowv4sf): Ditto.
9337         (aarch64_fmlsl_laneq_lowv4sf): Ditto.
9338         (aarch64_fmlal_lane_highv2sf): Ditto.
9339         (aarch64_fmlsl_lane_highv2sf): Ditto.
9340         (aarch64_fmlal_laneq_highv2sf): Ditto.
9341         (aarch64_fmlsl_laneq_highv2sf): Ditto.
9342         (aarch64_fmlalq_lane_highv4sf): Ditto.
9343         (aarch64_fmlsl_lane_highv4sf): Ditto.
9344         (aarch64_fmlalq_laneq_highv4sf): Ditto.
9345         (aarch64_fmlsl_laneq_highv4sf): Ditto.
9346         * config/aarch64/aarch64-simd.md:
9347         (aarch64_fml<f16mac1>l<f16quad>_low<mode>): New pattern.
9348         (aarch64_fml<f16mac1>l<f16quad>_high<mode>): Ditto.
9349         (aarch64_simd_fml<f16mac1>l<f16quad>_low<mode>): Ditto.
9350         (aarch64_simd_fml<f16mac1>l<f16quad>_high<mode>): Ditto.
9351         (aarch64_fml<f16mac1>l_lane_lowv2sf): Ditto.
9352         (aarch64_fml<f16mac1>l_lane_highv2sf): Ditto.
9353         (aarch64_simd_fml<f16mac>l_lane_lowv2sf): Ditto.
9354         (aarch64_simd_fml<f16mac>l_lane_highv2sf): Ditto.
9355         (aarch64_fml<f16mac1>lq_laneq_lowv4sf): Ditto.
9356         (aarch64_fml<f16mac1>lq_laneq_highv4sf): Ditto.
9357         (aarch64_simd_fml<f16mac>lq_laneq_lowv4sf): Ditto.
9358         (aarch64_simd_fml<f16mac>lq_laneq_highv4sf): Ditto.
9359         (aarch64_fml<f16mac1>l_laneq_lowv2sf): Ditto.
9360         (aarch64_fml<f16mac1>l_laneq_highv2sf): Ditto.
9361         (aarch64_simd_fml<f16mac>l_laneq_lowv2sf): Ditto.
9362         (aarch64_simd_fml<f16mac>l_laneq_highv2sf): Ditto.
9363         (aarch64_fml<f16mac1>lq_lane_lowv4sf): Ditto.
9364         (aarch64_fml<f16mac1>lq_lane_highv4sf): Ditto.
9365         (aarch64_simd_fml<f16mac>lq_lane_lowv4sf): Ditto.
9366         (aarch64_simd_fml<f16mac>lq_lane_highv4sf): Ditto.
9367         * config/aarch64/arm_neon.h (vfmlal_low_u32): New intrinsic.
9368         (vfmlsl_low_u32): Ditto.
9369         (vfmlalq_low_u32): Ditto.
9370         (vfmlslq_low_u32): Ditto.
9371         (vfmlal_high_u32): Ditto.
9372         (vfmlsl_high_u32): Ditto.
9373         (vfmlalq_high_u32): Ditto.
9374         (vfmlslq_high_u32): Ditto.
9375         (vfmlal_lane_low_u32): Ditto.
9376         (vfmlsl_lane_low_u32): Ditto.
9377         (vfmlal_laneq_low_u32): Ditto.
9378         (vfmlsl_laneq_low_u32): Ditto.
9379         (vfmlalq_lane_low_u32): Ditto.
9380         (vfmlslq_lane_low_u32): Ditto.
9381         (vfmlalq_laneq_low_u32): Ditto.
9382         (vfmlslq_laneq_low_u32): Ditto.
9383         (vfmlal_lane_high_u32): Ditto.
9384         (vfmlsl_lane_high_u32): Ditto.
9385         (vfmlal_laneq_high_u32): Ditto.
9386         (vfmlsl_laneq_high_u32): Ditto.
9387         (vfmlalq_lane_high_u32): Ditto.
9388         (vfmlslq_lane_high_u32): Ditto.
9389         (vfmlalq_laneq_high_u32): Ditto.
9390         (vfmlslq_laneq_high_u32): Ditto.
9391         * config/aarch64/aarch64.h (AARCH64_FL_F16SML): New flag.
9392         (AARCH64_FL_FOR_ARCH8_4): New.
9393         (AARCH64_ISA_F16FML): New ISA flag.
9394         (TARGET_F16FML): New feature flag for fp16fml.
9395         (doc/invoke.texi): Document new fp16fml option.
9396
9397 2018-01-10  Michael Collison  <michael.collison@arm.com>
9398
9399         * config/aarch64/aarch64-builtins.c:
9400         (aarch64_types_ternopu_imm_qualifiers, TYPES_TERNOPUI): New.
9401         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
9402         (__ARM_FEATURE_SHA3): Define if TARGET_SHA3 is true.
9403         * config/aarch64/aarch64.h (AARCH64_FL_SHA3): New flags.
9404         (AARCH64_ISA_SHA3): New ISA flag.
9405         (TARGET_SHA3): New feature flag for sha3.
9406         * config/aarch64/iterators.md (sha512_op): New int attribute.
9407         (CRYPTO_SHA512): New int iterator.
9408         (UNSPEC_SHA512H): New unspec.
9409         (UNSPEC_SHA512H2): Ditto.
9410         (UNSPEC_SHA512SU0): Ditto.
9411         (UNSPEC_SHA512SU1): Ditto.
9412         * config/aarch64/aarch64-simd-builtins.def
9413         (aarch64_crypto_sha512hqv2di): New builtin.
9414         (aarch64_crypto_sha512h2qv2di): Ditto.
9415         (aarch64_crypto_sha512su0qv2di): Ditto.
9416         (aarch64_crypto_sha512su1qv2di): Ditto.
9417         (aarch64_eor3qv8hi): Ditto.
9418         (aarch64_rax1qv2di): Ditto.
9419         (aarch64_xarqv2di): Ditto.
9420         (aarch64_bcaxqv8hi): Ditto.
9421         * config/aarch64/aarch64-simd.md:
9422         (aarch64_crypto_sha512h<sha512_op>qv2di): New pattern.
9423         (aarch64_crypto_sha512su0qv2di): Ditto.
9424         (aarch64_crypto_sha512su1qv2di): Ditto.
9425         (aarch64_eor3qv8hi): Ditto.
9426         (aarch64_rax1qv2di): Ditto.
9427         (aarch64_xarqv2di): Ditto.
9428         (aarch64_bcaxqv8hi): Ditto.
9429         * config/aarch64/arm_neon.h (vsha512hq_u64): New intrinsic.
9430         (vsha512h2q_u64): Ditto.
9431         (vsha512su0q_u64): Ditto.
9432         (vsha512su1q_u64): Ditto.
9433         (veor3q_u16): Ditto.
9434         (vrax1q_u64): Ditto.
9435         (vxarq_u64): Ditto.
9436         (vbcaxq_u16): Ditto.
9437         * config/arm/types.md (crypto_sha512): New type attribute.
9438         (crypto_sha3): Ditto.
9439         (doc/invoke.texi): Document new sha3 option.
9440
9441 2018-01-10  Michael Collison  <michael.collison@arm.com>
9442
9443         * config/aarch64/aarch64-builtins.c:
9444         (aarch64_types_quadopu_imm_qualifiers, TYPES_QUADOPUI): New.
9445         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
9446         (__ARM_FEATURE_SM3): Define if TARGET_SM4 is true.
9447         (__ARM_FEATURE_SM4): Define if TARGET_SM4 is true.
9448         * config/aarch64/aarch64.h (AARCH64_FL_SM4): New flags.
9449         (AARCH64_ISA_SM4): New ISA flag.
9450         (TARGET_SM4): New feature flag for sm4.
9451         * config/aarch64/aarch64-simd-builtins.def
9452         (aarch64_sm3ss1qv4si): Ditto.
9453         (aarch64_sm3tt1aq4si): Ditto.
9454         (aarch64_sm3tt1bq4si): Ditto.
9455         (aarch64_sm3tt2aq4si): Ditto.
9456         (aarch64_sm3tt2bq4si): Ditto.
9457         (aarch64_sm3partw1qv4si): Ditto.
9458         (aarch64_sm3partw2qv4si): Ditto.
9459         (aarch64_sm4eqv4si): Ditto.
9460         (aarch64_sm4ekeyqv4si): Ditto.
9461         * config/aarch64/aarch64-simd.md:
9462         (aarch64_sm3ss1qv4si): Ditto.
9463         (aarch64_sm3tt<sm3tt_op>qv4si): Ditto.
9464         (aarch64_sm3partw<sm3part_op>qv4si): Ditto.
9465         (aarch64_sm4eqv4si): Ditto.
9466         (aarch64_sm4ekeyqv4si): Ditto.
9467         * config/aarch64/iterators.md (sm3tt_op): New int iterator.
9468         (sm3part_op): Ditto.
9469         (CRYPTO_SM3TT): Ditto.
9470         (CRYPTO_SM3PART): Ditto.
9471         (UNSPEC_SM3SS1): New unspec.
9472         (UNSPEC_SM3TT1A): Ditto.
9473         (UNSPEC_SM3TT1B): Ditto.
9474         (UNSPEC_SM3TT2A): Ditto.
9475         (UNSPEC_SM3TT2B): Ditto.
9476         (UNSPEC_SM3PARTW1): Ditto.
9477         (UNSPEC_SM3PARTW2): Ditto.
9478         (UNSPEC_SM4E): Ditto.
9479         (UNSPEC_SM4EKEY): Ditto.
9480         * config/aarch64/constraints.md (Ui2): New constraint.
9481         * config/aarch64/predicates.md (aarch64_imm2): New predicate.
9482         * config/arm/types.md (crypto_sm3): New type attribute.
9483         (crypto_sm4): Ditto.
9484         * config/aarch64/arm_neon.h (vsm3ss1q_u32): New intrinsic.
9485         (vsm3tt1aq_u32): Ditto.
9486         (vsm3tt1bq_u32): Ditto.
9487         (vsm3tt2aq_u32): Ditto.
9488         (vsm3tt2bq_u32): Ditto.
9489         (vsm3partw1q_u32): Ditto.
9490         (vsm3partw2q_u32): Ditto.
9491         (vsm4eq_u32): Ditto.
9492         (vsm4ekeyq_u32): Ditto.
9493         (doc/invoke.texi): Document new sm4 option.
9494
9495 2018-01-10  Michael Collison  <michael.collison@arm.com>
9496
9497         * config/aarch64/aarch64-arches.def (armv8.4-a): New architecture.
9498         * config/aarch64/aarch64.h (AARCH64_ISA_V8_4): New ISA flag.
9499         (AARCH64_FL_FOR_ARCH8_4): New.
9500         (AARCH64_FL_V8_4): New flag.
9501         (doc/invoke.texi): Document new armv8.4-a option.
9502
9503 2018-01-10  Michael Collison  <michael.collison@arm.com>
9504
9505         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
9506         (__ARM_FEATURE_AES): Define if TARGET_AES is true.
9507         (__ARM_FEATURE_SHA2): Define if TARGET_SHA2 is true.
9508         * config/aarch64/aarch64-option-extension.def: Add
9509         AARCH64_OPT_EXTENSION of 'sha2'.
9510         (aes): Add AARCH64_OPT_EXTENSION of 'aes'.
9511         (crypto): Disable sha2 and aes if crypto disabled.
9512         (crypto): Enable aes and sha2 if enabled.
9513         (simd): Disable sha2 and aes if simd disabled.
9514         * config/aarch64/aarch64.h (AARCH64_FL_AES, AARCH64_FL_SHA2):
9515         New flags.
9516         (AARCH64_ISA_AES, AARCH64_ISA_SHA2): New ISA flags.
9517         (TARGET_SHA2): New feature flag for sha2.
9518         (TARGET_AES): New feature flag for aes.
9519         * config/aarch64/aarch64-simd.md:
9520         (aarch64_crypto_aes<aes_op>v16qi): Make pattern
9521         conditional on TARGET_AES.
9522         (aarch64_crypto_aes<aesmc_op>v16qi): Ditto.
9523         (aarch64_crypto_sha1hsi): Make pattern conditional
9524         on TARGET_SHA2.
9525         (aarch64_crypto_sha1hv4si): Ditto.
9526         (aarch64_be_crypto_sha1hv4si): Ditto.
9527         (aarch64_crypto_sha1su1v4si): Ditto.
9528         (aarch64_crypto_sha1<sha1_op>v4si): Ditto.
9529         (aarch64_crypto_sha1su0v4si): Ditto.
9530         (aarch64_crypto_sha256h<sha256_op>v4si): Ditto.
9531         (aarch64_crypto_sha256su0v4si): Ditto.
9532         (aarch64_crypto_sha256su1v4si): Ditto.
9533         (doc/invoke.texi): Document new aes and sha2 options.
9534
9535 2018-01-10  Martin Sebor  <msebor@redhat.com>
9536
9537         PR tree-optimization/83781
9538         * gimple-fold.c (get_range_strlen): Avoid treating arrays of pointers
9539         as string arrays.
9540
9541 2018-01-11  Martin Sebor  <msebor@gmail.com>
9542             Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
9543
9544         PR tree-optimization/83501
9545         PR tree-optimization/81703
9546
9547         * tree-ssa-strlen.c (get_string_cst): Rename...
9548         (get_string_len): ...to this.  Handle global constants.
9549         (handle_char_store): Adjust.
9550
9551 2018-01-10  Kito Cheng  <kito.cheng@gmail.com>
9552             Jim Wilson  <jimw@sifive.com>
9553
9554         * config/riscv/riscv-protos.h (riscv_output_return): New.
9555         * config/riscv/riscv.c (struct machine_function): New naked_p field.
9556         (riscv_attribute_table, riscv_output_return),
9557         (riscv_handle_fndecl_attribute, riscv_naked_function_p),
9558         (riscv_allocate_stack_slots_for_args, riscv_warn_func_return): New.
9559         (riscv_compute_frame_info): Only compute frame->mask if not a naked
9560         function.
9561         (riscv_expand_prologue): Add early return for naked function.
9562         (riscv_expand_epilogue): Likewise.
9563         (riscv_function_ok_for_sibcall): Return false for naked function.
9564         (riscv_set_current_function): New.
9565         (TARGET_SET_CURRENT_FUNCTION, TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS),
9566         (TARGET_ATTRIBUTE_TABLE, TARGET_WARN_FUNC_RETURN): New.
9567         * config/riscv/riscv.md (simple_return): Call riscv_output_return.
9568         * doc/extend.texi (RISC-V Function Attributes): New.
9569
9570 2018-01-10  Michael Meissner  <meissner@linux.vnet.ibm.com>
9571
9572         * config/rs6000/rs6000.c (is_complex_IBM_long_double): Explicitly
9573         check for 128-bit long double before checking TCmode.
9574         * config/rs6000/rs6000.h (FLOAT128_IEEE_P): Explicitly check for
9575         128-bit long doubles before checking TFmode or TCmode.
9576         (FLOAT128_IBM_P): Likewise.
9577
9578 2018-01-10  Martin Sebor  <msebor@redhat.com>
9579
9580         PR tree-optimization/83671
9581         * builtins.c (c_strlen): Unconditionally return zero for the empty
9582         string.
9583         Use -Warray-bounds for warnings.
9584         * gimple-fold.c (get_range_strlen): Handle non-constant lengths
9585         for non-constant array indices with COMPONENT_REF, arrays of
9586         arrays, and pointers to arrays.
9587         (gimple_fold_builtin_strlen): Determine and set length range for
9588         non-constant character arrays.
9589
9590 2018-01-10  Aldy Hernandez  <aldyh@redhat.com>
9591
9592         PR middle-end/81897
9593         * tree-ssa-uninit.c (convert_control_dep_chain_into_preds): Skip
9594         empty blocks.
9595
9596 2018-01-10  Eric Botcazou  <ebotcazou@adacore.com>
9597
9598         * dwarf2out.c (dwarf2out_var_location): Do not pass NULL to fprintf.
9599
9600 2018-01-10  Peter Bergner  <bergner@vnet.ibm.com>
9601
9602         PR target/83399
9603         * config/rs6000/rs6000.c (print_operand) <'y'>: Use
9604         VECTOR_MEM_ALTIVEC_OR_VSX_P.
9605         * config/rs6000/vsx.md (*vsx_le_perm_load_<mode> for VSX_D): Use
9606         indexed_or_indirect_operand predicate.
9607         (*vsx_le_perm_load_<mode> for VSX_W): Likewise.
9608         (*vsx_le_perm_load_v8hi): Likewise.
9609         (*vsx_le_perm_load_v16qi): Likewise.
9610         (*vsx_le_perm_store_<mode> for VSX_D): Likewise.
9611         (*vsx_le_perm_store_<mode> for VSX_W): Likewise.
9612         (*vsx_le_perm_store_v8hi): Likewise.
9613         (*vsx_le_perm_store_v16qi): Likewise.
9614         (eight unnamed splitters): Likewise.
9615
9616 2018-01-10  Peter Bergner  <bergner@vnet.ibm.com>
9617
9618         * config/rs6000/x86intrin.h: Change #warning to #error. Update message.
9619         * config/rs6000/emmintrin.h: Likewise.
9620         * config/rs6000/mmintrin.h: Likewise.
9621         * config/rs6000/xmmintrin.h: Likewise.
9622
9623 2018-01-10  David Malcolm  <dmalcolm@redhat.com>
9624
9625         PR c++/43486
9626         * tree-core.h: Document EXPR_LOCATION_WRAPPER_P's usage of
9627         "public_flag".
9628         * tree.c (tree_nop_conversion): Return true for location wrapper
9629         nodes.
9630         (maybe_wrap_with_location): New function.
9631         (selftest::check_strip_nops): New function.
9632         (selftest::test_location_wrappers): New function.
9633         (selftest::tree_c_tests): Call it.
9634         * tree.h (STRIP_ANY_LOCATION_WRAPPER): New macro.
9635         (maybe_wrap_with_location): New decl.
9636         (EXPR_LOCATION_WRAPPER_P): New macro.
9637         (location_wrapper_p): New inline function.
9638         (tree_strip_any_location_wrapper): New inline function.
9639
9640 2018-01-10  H.J. Lu  <hongjiu.lu@intel.com>
9641
9642         PR target/83735
9643         * config/i386/i386.c (ix86_compute_frame_layout): Always adjust
9644         stack_realign_offset for the largest alignment of stack slot
9645         actually used.
9646         (ix86_find_max_used_stack_alignment): New function.
9647         (ix86_finalize_stack_frame_flags): Use it.  Set
9648         max_used_stack_alignment if we don't realign stack.
9649         * config/i386/i386.h (machine_function): Add
9650         max_used_stack_alignment.
9651
9652 2018-01-10  Christophe Lyon  <christophe.lyon@linaro.org>
9653
9654         * config/arm/arm.opt (-mbranch-cost): New option.
9655         * config/arm/arm.h (BRANCH_COST): Take arm_branch_cost into
9656         account.
9657
9658 2018-01-10  Segher Boessenkool  <segher@kernel.crashing.org>
9659
9660         PR target/83629
9661         * config/rs6000/rs6000.md (load_toc_v4_PIC_2, load_toc_v4_PIC_3b,
9662         load_toc_v4_PIC_3c): Wrap const term in CONST RTL.
9663
9664 2018-01-10  Richard Biener  <rguenther@suse.de>
9665
9666         PR debug/83765
9667         * dwarf2out.c (gen_subprogram_die): Hoist old_die && declaration
9668         early out so it also covers the case where we have a non-NULL
9669         origin.
9670
9671 2018-01-10  Richard Sandiford  <richard.sandiford@linaro.org>
9672
9673         PR tree-optimization/83753
9674         * tree-vect-stmts.c (get_group_load_store_type): Use VMAT_CONTIGUOUS
9675         for non-strided grouped accesses if the number of elements is 1.
9676
9677 2018-01-10  Jan Hubicka  <hubicka@ucw.cz>
9678
9679         PR target/81616
9680         * i386.c (ix86_vectorize_builtin_gather): Check TARGET_USE_GATHER.
9681         * i386.h (TARGET_USE_GATHER): Define.
9682         * x86-tune.def (X86_TUNE_USE_GATHER): New.
9683
9684 2018-01-10  Martin Liska  <mliska@suse.cz>
9685
9686         PR bootstrap/82831
9687         * basic-block.h (CLEANUP_NO_PARTITIONING): New define.
9688         * bb-reorder.c (pass_reorder_blocks::execute): Do not clean up
9689         partitioning.
9690         * cfgcleanup.c (try_optimize_cfg): Fix up partitioning if
9691         CLEANUP_NO_PARTITIONING is not set.
9692
9693 2018-01-10  Richard Sandiford  <richard.sandiford@linaro.org>
9694
9695         * doc/rtl.texi: Remove documentation of (const ...) wrappers
9696         for vectors, as a partial revert of r254296.
9697         * rtl.h (const_vec_p): Delete.
9698         (const_vec_duplicate_p): Don't test for vector CONSTs.
9699         (unwrap_const_vec_duplicate, const_vec_series_p): Likewise.
9700         * expmed.c (make_tree): Likewise.
9701
9702         Revert:
9703         * common.md (E, F): Use CONSTANT_P instead of checking for
9704         CONST_VECTOR.
9705         * emit-rtl.c (gen_lowpart_common): Use const_vec_p instead of
9706         checking for CONST_VECTOR.
9707
9708 2018-01-09  Jan Hubicka  <hubicka@ucw.cz>
9709
9710         PR middle-end/83575
9711         * predict.c (force_edge_cold): Handle in more sane way edges
9712         with no prediction.
9713
9714 2018-01-09  Carl Love  <cel@us.ibm.com>
9715
9716         * config/rs6002/altivec.md (p8_vmrgow): Add support for V2DI, V2DF,
9717         V4SI, V4SF types.
9718         (p8_vmrgew): Add support for V2DI, V2DF, V4SF types.
9719         * config/rs6000/rs6000-builtin.def: Add definitions for FLOAT2_V2DF,
9720         VMRGEW_V2DI, VMRGEW_V2DF, VMRGEW_V4SF, VMRGOW_V4SI, VMRGOW_V4SF,
9721         VMRGOW_V2DI, VMRGOW_V2DF.  Remove definition for VMRGOW.
9722         * config/rs6000/rs6000-c.c (VSX_BUILTIN_VEC_FLOAT2,
9723         P8V_BUILTIN_VEC_VMRGEW, P8V_BUILTIN_VEC_VMRGOW):  Add definitions.
9724         * config/rs6000/rs6000-protos.h: Add extern defition for
9725         rs6000_generate_float2_double_code.
9726         * config/rs6000/rs6000.c (rs6000_generate_float2_double_code): Add
9727         function.
9728         * config/rs6000/vsx.md (vsx_xvcdpsp): Add define_insn.
9729         (float2_v2df): Add define_expand.
9730
9731 2018-01-09  Uros Bizjak  <ubizjak@gmail.com>
9732
9733         PR target/83628
9734         * combine.c (force_int_to_mode) <case ASHIFT>: Use mode instead of
9735         op_mode in the force_to_mode call.
9736
9737 2018-01-09  Richard Sandiford  <richard.sandiford@linaro.org>
9738
9739         * config/aarch64/aarch64.c (aarch64_evpc_trn): Use d.perm.series_p
9740         instead of checking each element individually.
9741         (aarch64_evpc_uzp): Likewise.
9742         (aarch64_evpc_zip): Likewise.
9743         (aarch64_evpc_ext): Likewise.
9744         (aarch64_evpc_rev): Likewise.
9745         (aarch64_evpc_dup): Test the encoding for a single duplicated element,
9746         instead of checking each element individually.  Return true without
9747         generating rtl if
9748         (aarch64_vectorize_vec_perm_const): Use all_from_input_p to test
9749         whether all selected elements come from the same input, instead of
9750         checking each element individually.  Remove calls to gen_rtx_REG,
9751         start_sequence and end_sequence and instead assert that no rtl is
9752         generated.
9753
9754 2018-01-09  Richard Sandiford  <richard.sandiford@linaro.org>
9755
9756         * config/aarch64/aarch64.c (aarch64_legitimate_constant_p): Fix
9757         order of HIGH and CONST checks.
9758
9759 2018-01-09  Richard Sandiford  <richard.sandiford@linaro.org>
9760
9761         * tree-vect-stmts.c (permute_vec_elements): Create a fresh variable
9762         if the destination isn't an SSA_NAME.
9763
9764 2018-01-09  Richard Biener  <rguenther@suse.de>
9765
9766         PR tree-optimization/83668
9767         * graphite.c (canonicalize_loop_closed_ssa): Add edge argument,
9768         move prologue...
9769         (canonicalize_loop_form): ... here, renamed from ...
9770         (canonicalize_loop_closed_ssa_form): ... this and amended to
9771         swap successor edges for loop exit blocks to make us use
9772         the RPO order we need for initial schedule generation.
9773
9774 2018-01-09  Joseph Myers  <joseph@codesourcery.com>
9775
9776         PR tree-optimization/64811
9777         * match.pd: When optimizing comparisons with Inf, avoid
9778         introducing or losing exceptions from comparisons with NaN.
9779
9780 2018-01-09  Martin Liska  <mliska@suse.cz>
9781
9782         PR sanitizer/82517
9783         * asan.c (shadow_mem_size): Add gcc_assert.
9784
9785 2018-01-09  Georg-Johann Lay  <avr@gjlay.de>
9786
9787         Don't save registers in main().
9788
9789         PR target/83738
9790         * doc/invoke.texi (AVR Options) [-mmain-is-OS_task]: Document it.
9791         * config/avr/avr.opt (-mmain-is-OS_task): New target option.
9792         * config/avr/avr.c (avr_set_current_function): Don't error if
9793         naked, OS_task or OS_main are specified at the same time.
9794         (avr_function_ok_for_sibcall): Don't disable sibcalls for OS_task,
9795         OS_main.
9796         (avr_insert_attributes) [-mmain-is-OS_task] <main>: Add OS_task
9797         attribute.
9798         * common/config/avr/avr-common.c (avr_option_optimization_table):
9799         Switch on -mmain-is-OS_task for optimizing compilations.
9800
9801 2018-01-09  Richard Biener  <rguenther@suse.de>
9802
9803         PR tree-optimization/83572
9804         * graphite.c: Include cfganal.h.
9805         (graphite_transform_loops): Connect infinite loops to exit
9806         and remove fake edges at the end.
9807
9808 2018-01-09  Jan Hubicka  <hubicka@ucw.cz>
9809
9810         * ipa-inline.c (edge_badness): Revert accidental checkin.
9811
9812 2018-01-09  Jan Hubicka  <hubicka@ucw.cz>
9813
9814         PR ipa/80763
9815         * ipa-comdats.c (set_comdat_group): Only set comdat group of real
9816         symbols; not inline clones.
9817
9818 2018-01-09  Jakub Jelinek  <jakub@redhat.com>
9819
9820         PR target/83507
9821         * modulo-sched.c (schedule_reg_moves): Punt if we'd need to move
9822         hard registers.  Formatting fixes.
9823
9824         PR preprocessor/83722
9825         * gcc.c (try_generate_repro): Pass
9826         &temp_stderr_files[RETRY_ICE_ATTEMPTS - 1] rather than
9827         &temp_stdout_files[RETRY_ICE_ATTEMPTS - 1] as last argument to
9828         do_report_bug.
9829
9830 2018-01-08  Monk Chiang  <sh.chiang04@gmail.com>
9831             Kito Cheng  <kito.cheng@gmail.com>
9832
9833         * config/riscv/riscv.c (machine_function::is_leaf): Remove field.
9834         (riscv_leaf_function_p): Delete.
9835         (riscv_function_ok_for_sibcall): Return false when TARGET_SAVE_RESTORE.
9836
9837 2018-01-08  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
9838
9839         * config/rs6000/rs6000-string.c (do_load_for_compare_from_addr): New
9840         function.
9841         (do_ifelse): New function.
9842         (do_isel): New function.
9843         (do_sub3): New function.
9844         (do_add3): New function.
9845         (do_load_mask_compare): New function.
9846         (do_overlap_load_compare): New function.
9847         (expand_compare_loop): New function.
9848         (expand_block_compare): Call expand_compare_loop() when appropriate.
9849         * config/rs6000/rs6000.opt (-mblock-compare-inline-limit): Change
9850         option description.
9851         (-mblock-compare-inline-loop-limit): New option.
9852
9853 2018-01-08  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
9854
9855         PR target/83677
9856         * config/rs6000/altivec.md (*altivec_vpermr_<mode>_internal):
9857         Reverse order of second and third operands in first alternative.
9858         * config/rs6000/rs6000.c (rs6000_expand_vector_set): Reverse order
9859         of first and second elements in UNSPEC_VPERMR vector.
9860         (altivec_expand_vec_perm_le): Likewise.
9861
9862 2018-01-08  Jeff Law  <law@redhat.com>
9863
9864         PR rtl-optimizatin/81308
9865         * tree-switch-conversion.c (cfg_altered): New file scoped static.
9866         (process_switch): If group_case_labels makes a change, then set
9867         cfg_altered.
9868         (pass_convert_switch::execute): If a switch is converted, then
9869         set cfg_altered.  Return TODO_cfg_cleanup if cfg_altered is true.
9870
9871         PR rtl-optimization/81308
9872         * recog.c (split_all_insns): Conditionally cleanup the CFG after
9873         splitting insns.
9874
9875 2018-01-08  Vidya Praveen  <vidyapraveen@arm.com>
9876
9877         PR target/83663 - Revert r255946
9878         * config/aarch64/aarch64.c (aarch64_expand_vector_init): Modify code
9879         generation for cases where splatting a value is not useful.
9880         * simplify-rtx.c (simplify_ternary_operation): Simplify vec_merge
9881         across a vec_duplicate and a paradoxical subreg forming a vector
9882         mode to a vec_concat.
9883
9884 2018-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
9885
9886         * config/arm/t-aprofile (MULTILIB_MATCHES): Add mapping rules for
9887         -march=armv8.3-a variants.
9888         * config/arm/t-multilib: Likewise.
9889         * config/arm/t-arm-elf: Likewise.  Handle dotprod extension.
9890
9891 2018-01-08  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
9892
9893         * config/rs6000/rs6000.md (cceq_ior_compare): Remove * so I can use it
9894         to generate rtl.
9895         (cceq_ior_compare_complement): Give it a name so I can use it, and
9896         change boolean_or_operator predicate to boolean_operator so it can
9897         be used to generate a crand.
9898         (eqne): New code iterator.
9899         (bd/bd_neg): New code_attrs.
9900         (<bd>_<mode>): New name for ctr<mode>_internal[12] now combined into
9901         a single define_insn.
9902         (<bd>tf_<mode>): A new insn pattern for the conditional form branch
9903         decrement (bdnzt/bdnzf/bdzt/bdzf).
9904         * config/rs6000/rs6000.c (rs6000_legitimate_combined_insn): Updated
9905         with the new names of the branch decrement patterns, and added the
9906         names of the branch decrement conditional patterns.
9907
9908 2018-01-08  Richard Biener  <rguenther@suse.de>
9909
9910         PR tree-optimization/83563
9911         * graphite.c (canonicalize_loop_closed_ssa_form): Reset the SCEV
9912         cache.
9913
9914 2018-01-08  Richard Biener  <rguenther@suse.de>
9915
9916         PR middle-end/83713
9917         * convert.c (do_narrow): Properly guard TYPE_OVERFLOW_WRAPS checks.
9918
9919 2018-01-08  Richard Biener  <rguenther@suse.de>
9920
9921         PR tree-optimization/83685
9922         * tree-ssa-pre.c (create_expression_by_pieces): Do not insert
9923         references to abnormals.
9924
9925 2018-01-08  Richard Biener  <rguenther@suse.de>
9926
9927         PR lto/83719
9928         * dwarf2out.c (output_indirect_strings): Handle empty
9929         skeleton_debug_str_hash.
9930         (dwarf2out_early_finish): Index strings for -gsplit-dwarf.
9931
9932 2018-01-08  Claudiu Zissulescu  <claziss@synopsys.com>
9933
9934         * config/arc/arc.c (TARGET_TRAMPOLINE_ADJUST_ADDRESS): Delete.
9935         (emit_store_direct): Likewise.
9936         (arc_trampoline_adjust_address): Likewise.
9937         (arc_asm_trampoline_template): New function.
9938         (arc_initialize_trampoline): Use asm_trampoline_template.
9939         (TARGET_ASM_TRAMPOLINE_TEMPLATE): Define.
9940         * config/arc/arc.h (TRAMPOLINE_SIZE): Adjust to 16.
9941         * config/arc/arc.md (flush_icache): Delete pattern.
9942
9943 2018-01-08  Claudiu Zissulescu  <claziss@synopsys.com>
9944
9945         * config/arc/arc-c.def (__ARC_UNALIGNED__): New define.
9946         * config/arc/arc.h (STRICT_ALIGNMENT): Control this macro using
9947         munaligned-access.
9948
9949 2018-01-08  Sebastian Huber  <sebastian.huber@embedded-brains.de>
9950
9951         PR target/83681
9952         * config/epiphany/epiphany.h (make_pass_mode_switch_use): Guard
9953         by not USED_FOR_TARGET.
9954         (make_pass_resolve_sw_modes): Likewise.
9955
9956 2018-01-08  Sebastian Huber  <sebastian.huber@embedded-brains.de>
9957
9958         * config/nios2/nios2.h (nios2_section_threshold): Guard by not
9959         USED_FOR_TARGET.
9960
9961 2018-01-08  Richard Biener  <rguenther@suse.de>
9962
9963         PR middle-end/83580
9964         * tree-data-ref.c (split_constant_offset): Remove STRIP_NOPS.
9965
9966 2018-01-08  Richard Biener  <rguenther@suse.de>
9967
9968         PR middle-end/83517
9969         * match.pd ((t * 2) / 2) -> t): Add missing :c.
9970
9971 2018-01-06  Aldy Hernandez  <aldyh@redhat.com>
9972
9973         PR middle-end/81897
9974         * tree-ssa-uninit.c (compute_control_dep_chain): Do not bail on
9975         basic blocks with a small number of successors.
9976         (convert_control_dep_chain_into_preds): Improve handling of
9977         forwarder blocks.
9978         (dump_predicates): Split apart into...
9979         (dump_pred_chain): ...here...
9980         (dump_pred_info): ...and here.
9981         (can_one_predicate_be_invalidated_p): Add debugging printfs.
9982         (can_chain_union_be_invalidated_p): Improve check for invalidation
9983         of paths.
9984         (uninit_uses_cannot_happen): Avoid unnecessary if
9985         convert_control_dep_chain_into_preds yielded nothing.
9986
9987 2018-01-06  Martin Sebor  <msebor@redhat.com>
9988
9989         PR tree-optimization/83640
9990         * gimple-ssa-warn-restrict.c (builtin_access::builtin_access): Avoid
9991         subtracting negative offset from size.
9992         (builtin_access::overlap): Adjust offset bounds of the access to fall
9993         within the size of the object if possible.
9994
9995 2018-01-06  Richard Sandiford  <richard.sandiford@linaro.org>
9996
9997         PR rtl-optimization/83699
9998         * expmed.c (extract_bit_field_1): Restrict the vector usage of
9999         extract_bit_field_as_subreg to cases in which the extracted
10000         value is also a vector.
10001
10002         * lra-constraints.c (process_alt_operands): Test for the equivalence
10003         substitutions when detecting a possible reload cycle.
10004
10005 2018-01-06  Jakub Jelinek  <jakub@redhat.com>
10006
10007         PR debug/83480
10008         * toplev.c (process_options): Don't enable debug_nonbind_markers_p
10009         by default if flag_selective_schedling{,2}.  Formatting fixes.
10010
10011         PR rtl-optimization/83682
10012         * rtl.h (const_vec_duplicate_p): Only return true for VEC_DUPLICATE
10013         if it has non-VECTOR_MODE element mode.
10014         (vec_duplicate_p): Likewise.
10015
10016         PR middle-end/83694
10017         * cfgexpand.c (expand_debug_expr): Punt if mode1 is VOIDmode
10018         and bitsize might be greater than MAX_BITSIZE_MODE_ANY_INT.
10019
10020 2018-01-05  Jakub Jelinek  <jakub@redhat.com>
10021
10022         PR target/83604
10023         * config/i386/i386-builtin.def
10024         (__builtin_ia32_vgf2p8affineinvqb_v64qi,
10025         __builtin_ia32_vgf2p8affineqb_v64qi, __builtin_ia32_vgf2p8mulb_v64qi):
10026         Require also OPTION_MASK_ISA_AVX512F in addition to
10027         OPTION_MASK_ISA_GFNI.
10028         (__builtin_ia32_vgf2p8affineinvqb_v16qi_mask,
10029         __builtin_ia32_vgf2p8affineqb_v16qi_mask): Require
10030         OPTION_MASK_ISA_AVX512VL instead of OPTION_MASK_ISA_SSE in addition
10031         to OPTION_MASK_ISA_GFNI.
10032         (__builtin_ia32_vgf2p8mulb_v32qi_mask): Require
10033         OPTION_MASK_ISA_AVX512VL in addition to OPTION_MASK_ISA_GFNI and
10034         OPTION_MASK_ISA_AVX512BW.
10035         (__builtin_ia32_vgf2p8mulb_v16qi_mask): Require
10036         OPTION_MASK_ISA_AVX512VL instead of OPTION_MASK_ISA_AVX512BW in
10037         addition to OPTION_MASK_ISA_GFNI.
10038         (__builtin_ia32_vgf2p8affineinvqb_v16qi,
10039         __builtin_ia32_vgf2p8affineqb_v16qi, __builtin_ia32_vgf2p8mulb_v16qi):
10040         Require OPTION_MASK_ISA_SSE2 instead of OPTION_MASK_ISA_SSE in addition
10041         to OPTION_MASK_ISA_GFNI.
10042         * config/i386/i386.c (def_builtin): Change to builtin isa/isa2 being
10043         a requirement for all ISAs rather than any of them with a few
10044         exceptions.
10045         (ix86_add_new_builtins): Clear OPTION_MASK_ISA_64BIT from isa before
10046         processing.
10047         (ix86_expand_builtin): Require all ISAs from builtin's isa and isa2
10048         bitmasks to be enabled with 3 exceptions, instead of requiring any
10049         enabled ISA with lots of exceptions.
10050         * config/i386/sse.md (vgf2p8affineinvqb_<mode><mask_name>,
10051         vgf2p8affineqb_<mode><mask_name>, vgf2p8mulb_<mode><mask_name>):
10052         Change avx512bw in isa attribute to avx512f.
10053         * config/i386/sgxintrin.h: Add license boilerplate.
10054         * config/i386/vaesintrin.h: Likewise.  Fix macro spelling __AVX512F
10055         to __AVX512F__ and __AVX512VL to __AVX512VL__.
10056         (_mm256_aesdec_epi128, _mm256_aesdeclast_epi128, _mm256_aesenc_epi128,
10057         _mm256_aesenclast_epi128): Enable temporarily avx if __AVX__ is not
10058         defined.
10059         * config/i386/gfniintrin.h (_mm_gf2p8mul_epi8,
10060         _mm_gf2p8affineinv_epi64_epi8, _mm_gf2p8affine_epi64_epi8): Enable
10061         temporarily sse2 rather than sse if not enabled already.
10062
10063         PR target/83604
10064         * config/i386/sse.md (VI248_VLBW): Rename to ...
10065         (VI248_AVX512VL): ... this.  Don't guard V32HI with TARGET_AVX512BW.
10066         (vpshrd_<mode><mask_name>, vpshld_<mode><mask_name>,
10067         vpshrdv_<mode>, vpshrdv_<mode>_mask, vpshrdv_<mode>_maskz,
10068         vpshrdv_<mode>_maskz_1, vpshldv_<mode>, vpshldv_<mode>_mask,
10069         vpshldv_<mode>_maskz, vpshldv_<mode>_maskz_1): Use VI248_AVX512VL
10070         mode iterator instead of VI248_VLBW.
10071
10072 2018-01-05  Jan Hubicka  <hubicka@ucw.cz>
10073
10074         * ipa-fnsummary.c (record_modified_bb_info): Add OP.
10075         (record_modified): Skip clobbers; add debug output.
10076         (param_change_prob): Use sreal frequencies.
10077
10078 2018-01-05  Richard Sandiford  <richard.sandiford@linaro.org>
10079
10080         * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Don't
10081         punt for user-aligned variables.
10082
10083 2018-01-05  Richard Sandiford  <richard.sandiford@linaro.org>
10084
10085         * tree-chrec.c (chrec_contains_symbols): Return true for
10086         POLY_INT_CST.
10087
10088 2018-01-05  Sudakshina Das  <sudi.das@arm.com>
10089
10090         PR target/82439
10091         * simplify-rtx.c (simplify_relational_operation_1): Add simplifications
10092         of (x|y) == x for BICS pattern.
10093
10094 2018-01-05  Jakub Jelinek  <jakub@redhat.com>
10095
10096         PR tree-optimization/83605
10097         * gimple-ssa-strength-reduction.c: Include tree-eh.h.
10098         (find_candidates_dom_walker::before_dom_children): Ignore stmts that
10099         can throw.
10100
10101 2018-01-05  Sebastian Huber  <sebastian.huber@embedded-brains.de>
10102
10103         * config.gcc (epiphany-*-elf*): Add (epiphany-*-rtems*) configuration.
10104         * config/epiphany/rtems.h: New file.
10105
10106 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
10107             Uros Bizjak  <ubizjak@gmail.com>
10108
10109         PR target/83554
10110         * config/i386/i386.md (*<rotate_insn>hi3_1 splitter): Use
10111         QIreg_operand instead of register_operand predicate.
10112         * config/i386/i386.c (ix86_rop_should_change_byte_p,
10113         set_rop_modrm_reg_bits, ix86_mitigate_rop): Use -mmitigate-rop in
10114         comments instead of -fmitigate[-_]rop.
10115
10116 2018-01-04  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
10117
10118         PR bootstrap/81926
10119         * cgraphunit.c (symbol_table::compile): Switch to text_section
10120         before calling assembly_start debug hook.
10121         * run-rtl-passes.c (run_rtl_passes): Likewise.
10122         Include output.h.
10123
10124 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
10125
10126         * tree-vrp.c (extract_range_from_binary_expr_1): Check
10127         range_int_cst_p rather than !symbolic_range_p before calling
10128         extract_range_from_multiplicative_op_1.
10129
10130 2018-01-04  Jeff Law  <law@redhat.com>
10131
10132         * tree-ssa-math-opts.c (execute_cse_reciprocals_1): Remove
10133         redundant test in assertion.
10134
10135 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
10136
10137         * doc/rtl.texi: Document machine_mode wrapper classes.
10138
10139 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
10140
10141         * fold-const.c (fold_ternary_loc): Check tree_fits_uhwi_p before
10142         using tree_to_uhwi.
10143
10144 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
10145
10146         * tree-ssa-forwprop.c (is_combined_permutation_identity): Allow
10147         the VEC_PERM_EXPR fold to fail.
10148
10149 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
10150
10151         PR debug/83585
10152         * bb-reorder.c (insert_section_boundary_note): Set has_bb_partition
10153         to switched_sections.
10154
10155 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
10156
10157         PR target/83680
10158         * config/arm/arm.c (arm_vectorize_vec_perm_const): Fix inverted
10159         test for d.testing.
10160
10161 2018-01-04  Peter Bergner  <bergner@vnet.ibm.com>
10162
10163         PR target/83387
10164         * config/rs6000/rs6000.c (rs6000_discover_homogeneous_aggregate): Do not
10165         allow arguments in FP registers if TARGET_HARD_FLOAT is false.
10166
10167 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
10168
10169         PR debug/83666
10170         * cfgexpand.c (expand_debug_expr) <case BIT_FIELD_REF>: Punt if mode
10171         is BLKmode and bitpos not zero or mode change is needed.
10172
10173 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
10174
10175         PR target/83675
10176         * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): Require
10177         TARGET_VIS2.
10178
10179 2018-01-04  Uros Bizjak  <ubizjak@gmail.com>
10180
10181         PR target/83628
10182         * config/alpha/alpha.md (*sadd<modesuffix>): Use ASHIFT
10183         instead of MULT rtx.  Update all corresponding splitters.
10184         (*saddl_se): Ditto.
10185         (*ssub<modesuffix>): Ditto.
10186         (*ssubl_se): Ditto.
10187         (*cmp_sadd_di): Update split patterns.
10188         (*cmp_sadd_si): Ditto.
10189         (*cmp_sadd_sidi): Ditto.
10190         (*cmp_ssub_di): Ditto.
10191         (*cmp_ssub_si): Ditto.
10192         (*cmp_ssub_sidi): Ditto.
10193         * config/alpha/predicates.md (const23_operand): New predicate.
10194         * config/alpha/alpha.c (alpha_rtx_costs) [PLUS, MINUS]:
10195         Look for ASHIFT, not MULT inner operand.
10196         (alpha_split_conditional_move): Update for *sadd<modesuffix> change.
10197
10198 2018-01-04  Martin Liska  <mliska@suse.cz>
10199
10200         PR gcov-profile/83669
10201         * gcov.c (output_intermediate_file): Add version to intermediate
10202         gcov file.
10203         * doc/gcov.texi: Document new field 'version' in intermediate
10204         file format. Fix location of '-k' option of gcov command.
10205
10206 2018-01-04  Martin Liska  <mliska@suse.cz>
10207
10208         PR ipa/82352
10209         * ipa-icf.c (sem_function::merge): Do not cross comdat boundary.
10210
10211 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
10212
10213         * gimple-ssa-sprintf.c (parse_directive): Cast second dir.len to uhwi.
10214
10215 2018-01-03  Martin Sebor  <msebor@redhat.com>
10216
10217         PR tree-optimization/83655
10218         * gimple-ssa-warn-restrict.c (wrestrict_dom_walker::check_call): Avoid
10219         checking calls with invalid arguments.
10220
10221 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10222
10223         * tree-vect-stmts.c (vect_get_store_rhs): New function.
10224         (vectorizable_mask_load_store): Delete.
10225         (vectorizable_call): Return false for masked loads and stores.
10226         (vectorizable_store): Handle IFN_MASK_STORE.  Use vect_get_store_rhs
10227         instead of gimple_assign_rhs1.
10228         (vectorizable_load): Handle IFN_MASK_LOAD.
10229         (vect_transform_stmt): Don't set is_store for call_vec_info_type.
10230
10231 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10232
10233         * tree-vect-stmts.c (vect_build_gather_load_calls): New function,
10234         split out from..,
10235         (vectorizable_mask_load_store): ...here.
10236         (vectorizable_load): ...and here.
10237
10238 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10239
10240         * tree-vect-stmts.c (vect_build_all_ones_mask)
10241         (vect_build_zero_merge_argument): New functions, split out from...
10242         (vectorizable_load): ...here.
10243
10244 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10245
10246         * tree-vect-stmts.c (vect_check_store_rhs): New function,
10247         split out from...
10248         (vectorizable_mask_load_store): ...here.
10249         (vectorizable_store): ...and here.
10250
10251 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10252
10253         * tree-vect-stmts.c (vect_check_load_store_mask): New function,
10254         split out from...
10255         (vectorizable_mask_load_store): ...here.
10256
10257 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10258
10259         * tree-vectorizer.h (vec_load_store_type): Moved from tree-vec-stmts.c
10260         (vect_model_store_cost): Take a vec_load_store_type instead of a
10261         vect_def_type.
10262         * tree-vect-stmts.c (vec_load_store_type): Move to tree-vectorizer.h.
10263         (vect_model_store_cost): Take a vec_load_store_type instead of a
10264         vect_def_type.
10265         (vectorizable_mask_load_store): Update accordingly.
10266         (vectorizable_store): Likewise.
10267         * tree-vect-slp.c (vect_analyze_slp_cost_1): Update accordingly.
10268
10269 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10270
10271         * tree-vect-loop.c (vect_transform_loop): Stub out scalar
10272         IFN_MASK_LOAD calls here rather than...
10273         * tree-vect-stmts.c (vectorizable_mask_load_store): ...here.
10274
10275 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10276             Alan Hayward  <alan.hayward@arm.com>
10277             David Sherwood  <david.sherwood@arm.com>
10278
10279         * expmed.c (extract_bit_field_1): For vector extracts,
10280         fall back to extract_bit_field_as_subreg if vec_extract
10281         isn't available.
10282
10283 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10284             Alan Hayward  <alan.hayward@arm.com>
10285             David Sherwood  <david.sherwood@arm.com>
10286
10287         * lra-spills.c (pseudo_reg_slot_compare): Sort slots by whether
10288         they are variable or constant sized.
10289         (assign_stack_slot_num_and_sort_pseudos): Don't reuse variable-sized
10290         slots for constant-sized data.
10291
10292 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10293             Alan Hayward  <alan.hayward@arm.com>
10294             David Sherwood  <david.sherwood@arm.com>
10295
10296         * tree-vect-patterns.c (vect_recog_mask_conversion_pattern): When
10297         handling COND_EXPRs with boolean comparisons, try to find a better
10298         basis for the mask type than the boolean itself.
10299
10300 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10301
10302         * doc/rtl.texi (MAX_BITSIZE_MODE_ANY_MODE): Describe how the default
10303         is calculated and how it can be overridden.
10304         * genmodes.c (max_bitsize_mode_any_mode): New variable.
10305         (create_modes): Initialize it from MAX_BITSIZE_MODE_ANY_MODE,
10306         if defined.
10307         (emit_max_int): Use it to set the output MAX_BITSIZE_MODE_ANY_MODE,
10308         if nonzero.
10309
10310 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10311             Alan Hayward  <alan.hayward@arm.com>
10312             David Sherwood  <david.sherwood@arm.com>
10313
10314         * config/aarch64/aarch64-protos.h (aarch64_output_simd_mov_immediate):
10315         Remove the mode argument.
10316         (aarch64_simd_valid_immediate): Remove the mode and inverse
10317         arguments.
10318         * config/aarch64/iterators.md (bitsize): New iterator.
10319         * config/aarch64/aarch64-simd.md (*aarch64_simd_mov<mode>, and<mode>3)
10320         (ior<mode>3): Update calls to aarch64_output_simd_mov_immediate.
10321         * config/aarch64/constraints.md (Do, Db, Dn): Update calls to
10322         aarch64_simd_valid_immediate.
10323         * config/aarch64/predicates.md (aarch64_reg_or_orr_imm): Likewise.
10324         (aarch64_reg_or_bic_imm): Likewise.
10325         * config/aarch64/aarch64.c (simd_immediate_info): Replace mvn
10326         with an insn_type enum and msl with a modifier_type enum.
10327         Replace element_width with a scalar_mode.  Change the shift
10328         to unsigned int.  Add constructors for scalar_float_mode and
10329         scalar_int_mode elements.
10330         (aarch64_vect_float_const_representable_p): Delete.
10331         (aarch64_can_const_movi_rtx_p)
10332         (aarch64_simd_scalar_immediate_valid_for_move)
10333         (aarch64_simd_make_constant): Update call to
10334         aarch64_simd_valid_immediate.
10335         (aarch64_advsimd_valid_immediate_hs): New function.
10336         (aarch64_advsimd_valid_immediate): Likewise.
10337         (aarch64_simd_valid_immediate): Remove mode and inverse
10338         arguments.  Rewrite to use the above.  Use const_vec_duplicate_p
10339         to detect duplicated constants and use aarch64_float_const_zero_rtx_p
10340         and aarch64_float_const_representable_p on the result.
10341         (aarch64_output_simd_mov_immediate): Remove mode argument.
10342         Update call to aarch64_simd_valid_immediate and use of
10343         simd_immediate_info.
10344         (aarch64_output_scalar_simd_mov_immediate): Update call
10345         accordingly.
10346
10347 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10348             Alan Hayward  <alan.hayward@arm.com>
10349             David Sherwood  <david.sherwood@arm.com>
10350
10351         * machmode.h (mode_precision): Prefix with CONST_MODE_PRECISION.
10352         (mode_nunits): Likewise CONST_MODE_NUNITS.
10353         * machmode.def (ADJUST_NUNITS): Document.
10354         * genmodes.c (mode_data::need_nunits_adj): New field.
10355         (blank_mode): Update accordingly.
10356         (adj_nunits): New variable.
10357         (print_maybe_const_decl): Replace CATEGORY with a NEEDS_ADJ
10358         parameter.
10359         (emit_mode_size_inline): Set need_bytesize_adj for all modes
10360         listed in adj_nunits.
10361         (emit_mode_nunits_inline): Set need_nunits_adj for all modes
10362         listed in adj_nunits.  Don't emit case statements for such modes.
10363         (emit_insn_modes_h): Emit definitions of CONST_MODE_NUNITS
10364         and CONST_MODE_PRECISION.  Make CONST_MODE_SIZE expand to
10365         nothing if adj_nunits is nonnull.
10366         (emit_mode_precision, emit_mode_nunits): Use print_maybe_const_decl.
10367         (emit_mode_unit_size, emit_mode_base_align, emit_mode_ibit)
10368         (emit_mode_fbit): Update use of print_maybe_const_decl.
10369         (emit_move_size): Likewise.  Treat the array as non-const
10370         if adj_nunits.
10371         (emit_mode_adjustments): Handle adj_nunits.
10372
10373 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10374
10375         * machmode.def (VECTOR_MODES_WITH_PREFIX): Document.
10376         * genmodes.c (VECTOR_MODES_WITH_PREFIX): New macro.
10377         (VECTOR_MODES): Use it.
10378         (make_vector_modes): Take the prefix as an argument.
10379
10380 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10381             Alan Hayward  <alan.hayward@arm.com>
10382             David Sherwood  <david.sherwood@arm.com>
10383
10384         * mode-classes.def (MODE_VECTOR_BOOL): New mode class.
10385         * machmode.h (INTEGRAL_MODE_P, VECTOR_MODE_P): Return true
10386         for MODE_VECTOR_BOOL.
10387         * machmode.def (VECTOR_BOOL_MODE): Document.
10388         * genmodes.c (VECTOR_BOOL_MODE): New macro.
10389         (make_vector_bool_mode): New function.
10390         (complete_mode, emit_mode_wider, emit_mode_adjustments): Handle
10391         MODE_VECTOR_BOOL.
10392         * lto-streamer-in.c (lto_input_mode_table): Likewise.
10393         * rtx-vector-builder.c (rtx_vector_builder::find_cached_value):
10394         Likewise.
10395         * stor-layout.c (int_mode_for_mode): Likewise.
10396         * tree.c (build_vector_type_for_mode): Likewise.
10397         * varasm.c (output_constant_pool_2): Likewise.
10398         * emit-rtl.c (init_emit_once): Make sure that CONST1_RTX (BImode) and
10399         CONSTM1_RTX (BImode) are the same thing.  Initialize const_tiny_rtx
10400         for MODE_VECTOR_BOOL.
10401         * expr.c (expand_expr_real_1): Use VECTOR_MODE_P instead of a list
10402         of mode class checks.
10403         * tree-vect-generic.c (expand_vector_operation): Use VECTOR_MODE_P
10404         instead of a list of mode class checks.
10405         (expand_vector_scalar_condition): Likewise.
10406         (type_for_widest_vector_mode): Handle BImode as an inner mode.
10407
10408 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10409             Alan Hayward  <alan.hayward@arm.com>
10410             David Sherwood  <david.sherwood@arm.com>
10411
10412         * machmode.h (mode_size): Change from unsigned short to
10413         poly_uint16_pod.
10414         (mode_to_bytes): Return a poly_uint16 rather than an unsigned short.
10415         (GET_MODE_SIZE): Return a constant if ONLY_FIXED_SIZE_MODES,
10416         or if measurement_type is not polynomial.
10417         (fixed_size_mode::includes_p): Check for constant-sized modes.
10418         * genmodes.c (emit_mode_size_inline): Make mode_size_inline
10419         return a poly_uint16 rather than an unsigned short.
10420         (emit_mode_size): Change the type of mode_size from unsigned short
10421         to poly_uint16_pod.  Use ZERO_COEFFS for the initializer.
10422         (emit_mode_adjustments): Cope with polynomial vector sizes.
10423         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
10424         for GET_MODE_SIZE.
10425         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
10426         for GET_MODE_SIZE.
10427         * auto-inc-dec.c (try_merge): Treat GET_MODE_SIZE as polynomial.
10428         * builtins.c (expand_ifn_atomic_compare_exchange_into_call): Likewise.
10429         * caller-save.c (setup_save_areas): Likewise.
10430         (replace_reg_with_saved_mem): Likewise.
10431         * calls.c (emit_library_call_value_1): Likewise.
10432         * combine-stack-adj.c (combine_stack_adjustments_for_block): Likewise.
10433         * combine.c (simplify_set, make_extraction, simplify_shift_const_1)
10434         (gen_lowpart_for_combine): Likewise.
10435         * convert.c (convert_to_integer_1): Likewise.
10436         * cse.c (equiv_constant, cse_insn): Likewise.
10437         * cselib.c (autoinc_split, cselib_hash_rtx): Likewise.
10438         (cselib_subst_to_values): Likewise.
10439         * dce.c (word_dce_process_block): Likewise.
10440         * df-problems.c (df_word_lr_mark_ref): Likewise.
10441         * dwarf2cfi.c (init_one_dwarf_reg_size): Likewise.
10442         * dwarf2out.c (multiple_reg_loc_descriptor, mem_loc_descriptor)
10443         (concat_loc_descriptor, concatn_loc_descriptor, loc_descriptor)
10444         (rtl_for_decl_location): Likewise.
10445         * emit-rtl.c (gen_highpart, widen_memory_access): Likewise.
10446         * expmed.c (extract_bit_field_1, extract_integral_bit_field): Likewise.
10447         * expr.c (emit_group_load_1, clear_storage_hints): Likewise.
10448         (emit_move_complex, emit_move_multi_word, emit_push_insn): Likewise.
10449         (expand_expr_real_1): Likewise.
10450         * function.c (assign_parm_setup_block_p, assign_parm_setup_block)
10451         (pad_below): Likewise.
10452         * gimple-fold.c (optimize_atomic_compare_exchange_p): Likewise.
10453         * gimple-ssa-store-merging.c (rhs_valid_for_store_merging_p): Likewise.
10454         * ira.c (get_subreg_tracking_sizes): Likewise.
10455         * ira-build.c (ira_create_allocno_objects): Likewise.
10456         * ira-color.c (coalesced_pseudo_reg_slot_compare): Likewise.
10457         (ira_sort_regnos_for_alter_reg): Likewise.
10458         * ira-costs.c (record_operand_costs): Likewise.
10459         * lower-subreg.c (interesting_mode_p, simplify_gen_subreg_concatn)
10460         (resolve_simple_move): Likewise.
10461         * lra-constraints.c (get_reload_reg, operands_match_p): Likewise.
10462         (process_addr_reg, simplify_operand_subreg, curr_insn_transform)
10463         (lra_constraints): Likewise.
10464         (CONST_POOL_OK_P): Reject variable-sized modes.
10465         * lra-spills.c (slot, assign_mem_slot, pseudo_reg_slot_compare)
10466         (add_pseudo_to_slot, lra_spill): Likewise.
10467         * omp-low.c (omp_clause_aligned_alignment): Likewise.
10468         * optabs-query.c (get_best_extraction_insn): Likewise.
10469         * optabs-tree.c (expand_vec_cond_expr_p): Likewise.
10470         * optabs.c (expand_vec_perm_var, expand_vec_cond_expr): Likewise.
10471         (expand_mult_highpart, valid_multiword_target_p): Likewise.
10472         * recog.c (offsettable_address_addr_space_p): Likewise.
10473         * regcprop.c (maybe_mode_change): Likewise.
10474         * reginfo.c (choose_hard_reg_mode, record_subregs_of_mode): Likewise.
10475         * regrename.c (build_def_use): Likewise.
10476         * regstat.c (dump_reg_info): Likewise.
10477         * reload.c (complex_word_subreg_p, push_reload, find_dummy_reload)
10478         (find_reloads, find_reloads_subreg_address): Likewise.
10479         * reload1.c (eliminate_regs_1): Likewise.
10480         * rtlanal.c (for_each_inc_dec_find_inc_dec, rtx_cost): Likewise.
10481         * simplify-rtx.c (avoid_constant_pool_reference): Likewise.
10482         (simplify_binary_operation_1, simplify_subreg): Likewise.
10483         * targhooks.c (default_function_arg_padding): Likewise.
10484         (default_hard_regno_nregs, default_class_max_nregs): Likewise.
10485         * tree-cfg.c (verify_gimple_assign_binary): Likewise.
10486         (verify_gimple_assign_ternary): Likewise.
10487         * tree-inline.c (estimate_move_cost): Likewise.
10488         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
10489         * tree-ssa-loop-ivopts.c (add_autoinc_candidates): Likewise.
10490         (get_address_cost_ainc): Likewise.
10491         * tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Likewise.
10492         (vect_supportable_dr_alignment): Likewise.
10493         * tree-vect-loop.c (vect_determine_vectorization_factor): Likewise.
10494         (vectorizable_reduction): Likewise.
10495         * tree-vect-stmts.c (vectorizable_assignment, vectorizable_shift)
10496         (vectorizable_operation, vectorizable_load): Likewise.
10497         * tree.c (build_same_sized_truth_vector_type): Likewise.
10498         * valtrack.c (cleanup_auto_inc_dec): Likewise.
10499         * var-tracking.c (emit_note_insn_var_location): Likewise.
10500         * config/arc/arc.h (ASM_OUTPUT_CASE_END): Use as_a <scalar_int_mode>.
10501         (ADDR_VEC_ALIGN): Likewise.
10502
10503 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10504             Alan Hayward  <alan.hayward@arm.com>
10505             David Sherwood  <david.sherwood@arm.com>
10506
10507         * machmode.h (mode_to_bits): Return a poly_uint16 rather than an
10508         unsigned short.
10509         (GET_MODE_BITSIZE): Return a constant if ONLY_FIXED_SIZE_MODES,
10510         or if measurement_type is polynomial.
10511         * calls.c (shift_return_value): Treat GET_MODE_BITSIZE as polynomial.
10512         * combine.c (make_extraction): Likewise.
10513         * dse.c (find_shift_sequence): Likewise.
10514         * dwarf2out.c (mem_loc_descriptor): Likewise.
10515         * expmed.c (store_integral_bit_field, extract_bit_field_1): Likewise.
10516         (extract_bit_field, extract_low_bits): Likewise.
10517         * expr.c (convert_move, convert_modes, emit_move_insn_1): Likewise.
10518         (optimize_bitfield_assignment_op, expand_assignment): Likewise.
10519         (store_expr_with_bounds, store_field, expand_expr_real_1): Likewise.
10520         * fold-const.c (optimize_bit_field_compare, merge_ranges): Likewise.
10521         * gimple-fold.c (optimize_atomic_compare_exchange_p): Likewise.
10522         * reload.c (find_reloads): Likewise.
10523         * reload1.c (alter_reg): Likewise.
10524         * stor-layout.c (bitwise_mode_for_mode, compute_record_mode): Likewise.
10525         * targhooks.c (default_secondary_memory_needed_mode): Likewise.
10526         * tree-if-conv.c (predicate_mem_writes): Likewise.
10527         * tree-ssa-strlen.c (handle_builtin_memcmp): Likewise.
10528         * tree-vect-patterns.c (adjust_bool_pattern): Likewise.
10529         * tree-vect-stmts.c (vectorizable_simd_clone_call): Likewise.
10530         * valtrack.c (dead_debug_insert_temp): Likewise.
10531         * varasm.c (mergeable_constant_section): Likewise.
10532         * config/sh/sh.h (LOCAL_ALIGNMENT): Use as_a <fixed_size_mode>.
10533
10534 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10535             Alan Hayward  <alan.hayward@arm.com>
10536             David Sherwood  <david.sherwood@arm.com>
10537
10538         * expr.c (expand_assignment): Cope with polynomial mode sizes
10539         when assigning to a CONCAT.
10540
10541 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10542             Alan Hayward  <alan.hayward@arm.com>
10543             David Sherwood  <david.sherwood@arm.com>
10544
10545         * machmode.h (mode_precision): Change from unsigned short to
10546         poly_uint16_pod.
10547         (mode_to_precision): Return a poly_uint16 rather than an unsigned
10548         short.
10549         (GET_MODE_PRECISION): Return a constant if ONLY_FIXED_SIZE_MODES,
10550         or if measurement_type is not polynomial.
10551         (HWI_COMPUTABLE_MODE_P): Turn into a function.  Optimize the case
10552         in which the mode is already known to be a scalar_int_mode.
10553         * genmodes.c (emit_mode_precision): Change the type of mode_precision
10554         from unsigned short to poly_uint16_pod.  Use ZERO_COEFFS for the
10555         initializer.
10556         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
10557         for GET_MODE_PRECISION.
10558         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
10559         for GET_MODE_PRECISION.
10560         * combine.c (update_rsp_from_reg_equal): Treat GET_MODE_PRECISION
10561         as polynomial.
10562         (try_combine, find_split_point, combine_simplify_rtx): Likewise.
10563         (expand_field_assignment, make_extraction): Likewise.
10564         (make_compound_operation_int, record_dead_and_set_regs_1): Likewise.
10565         (get_last_value): Likewise.
10566         * convert.c (convert_to_integer_1): Likewise.
10567         * cse.c (cse_insn): Likewise.
10568         * expr.c (expand_expr_real_1): Likewise.
10569         * lra-constraints.c (simplify_operand_subreg): Likewise.
10570         * optabs-query.c (can_atomic_load_p): Likewise.
10571         * optabs.c (expand_atomic_load): Likewise.
10572         (expand_atomic_store): Likewise.
10573         * ree.c (combine_reaching_defs): Likewise.
10574         * rtl.h (partial_subreg_p, paradoxical_subreg_p): Likewise.
10575         * rtlanal.c (nonzero_bits1, lsb_bitfield_op_p): Likewise.
10576         * tree.h (type_has_mode_precision_p): Likewise.
10577         * ubsan.c (instrument_si_overflow): Likewise.
10578
10579 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10580             Alan Hayward  <alan.hayward@arm.com>
10581             David Sherwood  <david.sherwood@arm.com>
10582
10583         * tree.h (TYPE_VECTOR_SUBPARTS): Turn into a function and handle
10584         polynomial numbers of units.
10585         (SET_TYPE_VECTOR_SUBPARTS): Likewise.
10586         (valid_vector_subparts_p): New function.
10587         (build_vector_type): Remove temporary shim and take the number
10588         of units as a poly_uint64 rather than an int.
10589         (build_opaque_vector_type): Take the number of units as a
10590         poly_uint64 rather than an int.
10591         * tree.c (build_vector_from_ctor): Handle polynomial
10592         TYPE_VECTOR_SUBPARTS.
10593         (type_hash_canon_hash, type_cache_hasher::equal): Likewise.
10594         (uniform_vector_p, vector_type_mode, build_vector): Likewise.
10595         (build_vector_from_val): If the number of units is variable,
10596         use build_vec_duplicate_cst for constant operands and
10597         VEC_DUPLICATE_EXPR otherwise.
10598         (make_vector_type): Remove temporary is_constant ().
10599         (build_vector_type, build_opaque_vector_type): Take the number of
10600         units as a poly_uint64 rather than an int.
10601         (check_vector_cst): Handle polynomial TYPE_VECTOR_SUBPARTS and
10602         VECTOR_CST_NELTS.
10603         * cfgexpand.c (expand_debug_expr): Likewise.
10604         * expr.c (count_type_elements, categorize_ctor_elements_1): Likewise.
10605         (store_constructor, expand_expr_real_1): Likewise.
10606         (const_scalar_mask_from_tree): Likewise.
10607         * fold-const-call.c (fold_const_reduction): Likewise.
10608         * fold-const.c (const_binop, const_unop, fold_convert_const): Likewise.
10609         (operand_equal_p, fold_vec_perm, fold_ternary_loc): Likewise.
10610         (native_encode_vector, vec_cst_ctor_to_array): Likewise.
10611         (fold_relational_const): Likewise.
10612         (native_interpret_vector): Likewise.  Change the size from an
10613         int to an unsigned int.
10614         * gimple-fold.c (gimple_fold_stmt_to_constant_1): Handle polynomial
10615         TYPE_VECTOR_SUBPARTS.
10616         (gimple_fold_indirect_ref, gimple_build_vector): Likewise.
10617         (gimple_build_vector_from_val): Use VEC_DUPLICATE_EXPR when
10618         duplicating a non-constant operand into a variable-length vector.
10619         * hsa-brig.c (hsa_op_immed::emit_to_buffer): Handle polynomial
10620         TYPE_VECTOR_SUBPARTS and VECTOR_CST_NELTS.
10621         * ipa-icf.c (sem_variable::equals): Likewise.
10622         * match.pd: Likewise.
10623         * omp-simd-clone.c (simd_clone_subparts): Likewise.
10624         * print-tree.c (print_node): Likewise.
10625         * stor-layout.c (layout_type): Likewise.
10626         * targhooks.c (default_builtin_vectorization_cost): Likewise.
10627         * tree-cfg.c (verify_gimple_comparison): Likewise.
10628         (verify_gimple_assign_binary): Likewise.
10629         (verify_gimple_assign_ternary): Likewise.
10630         (verify_gimple_assign_single): Likewise.
10631         * tree-pretty-print.c (dump_generic_node): Likewise.
10632         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
10633         (simplify_bitfield_ref, is_combined_permutation_identity): Likewise.
10634         * tree-vect-data-refs.c (vect_permute_store_chain): Likewise.
10635         (vect_grouped_load_supported, vect_permute_load_chain): Likewise.
10636         (vect_shift_permute_load_chain): Likewise.
10637         * tree-vect-generic.c (nunits_for_known_piecewise_op): Likewise.
10638         (expand_vector_condition, optimize_vector_constructor): Likewise.
10639         (lower_vec_perm, get_compute_type): Likewise.
10640         * tree-vect-loop.c (vect_determine_vectorization_factor): Likewise.
10641         (get_initial_defs_for_reduction, vect_transform_loop): Likewise.
10642         * tree-vect-patterns.c (vect_recog_bool_pattern): Likewise.
10643         (vect_recog_mask_conversion_pattern): Likewise.
10644         * tree-vect-slp.c (vect_supported_load_permutation_p): Likewise.
10645         (vect_get_constant_vectors, vect_transform_slp_perm_load): Likewise.
10646         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
10647         (get_group_load_store_type, vectorizable_mask_load_store): Likewise.
10648         (vectorizable_bswap, simd_clone_subparts, vectorizable_assignment)
10649         (vectorizable_shift, vectorizable_operation, vectorizable_store)
10650         (vectorizable_load, vect_is_simple_cond, vectorizable_comparison)
10651         (supportable_widening_operation): Likewise.
10652         (supportable_narrowing_operation): Likewise.
10653         * tree-vector-builder.c (tree_vector_builder::binary_encoded_nelts):
10654         Likewise.
10655         * varasm.c (output_constant): Likewise.
10656
10657 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10658             Alan Hayward  <alan.hayward@arm.com>
10659             David Sherwood  <david.sherwood@arm.com>
10660
10661         * tree-vect-data-refs.c (vect_permute_store_chain): Reorganize
10662         so that both the length == 3 and length != 3 cases set up their
10663         own permute vectors.  Add comments explaining why we know the
10664         number of elements is constant.
10665         (vect_permute_load_chain): Likewise.
10666
10667 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10668             Alan Hayward  <alan.hayward@arm.com>
10669             David Sherwood  <david.sherwood@arm.com>
10670
10671         * machmode.h (mode_nunits): Change from unsigned char to
10672         poly_uint16_pod.
10673         (ONLY_FIXED_SIZE_MODES): New macro.
10674         (pod_mode::measurement_type, scalar_int_mode::measurement_type)
10675         (scalar_float_mode::measurement_type, scalar_mode::measurement_type)
10676         (complex_mode::measurement_type, fixed_size_mode::measurement_type):
10677         New typedefs.
10678         (mode_to_nunits): Return a poly_uint16 rather than an unsigned short.
10679         (GET_MODE_NUNITS): Return a constant if ONLY_FIXED_SIZE_MODES,
10680         or if measurement_type is not polynomial.
10681         * genmodes.c (ZERO_COEFFS): New macro.
10682         (emit_mode_nunits_inline): Make mode_nunits_inline return a
10683         poly_uint16.
10684         (emit_mode_nunits): Change the type of mode_nunits to poly_uint16_pod.
10685         Use ZERO_COEFFS when emitting initializers.
10686         * data-streamer.h (bp_pack_poly_value): New function.
10687         (bp_unpack_poly_value): Likewise.
10688         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
10689         for GET_MODE_NUNITS.
10690         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
10691         for GET_MODE_NUNITS.
10692         * tree.c (make_vector_type): Remove temporary shim and make
10693         the real function take the number of units as a poly_uint64
10694         rather than an int.
10695         (build_vector_type_for_mode): Handle polynomial nunits.
10696         * dwarf2out.c (loc_descriptor, add_const_value_attribute): Likewise.
10697         * emit-rtl.c (const_vec_series_p_1): Likewise.
10698         (gen_rtx_CONST_VECTOR): Likewise.
10699         * fold-const.c (test_vec_duplicate_folding): Likewise.
10700         * genrecog.c (validate_pattern): Likewise.
10701         * optabs-query.c (can_vec_perm_var_p, can_mult_highpart_p): Likewise.
10702         * optabs-tree.c (expand_vec_cond_expr_p): Likewise.
10703         * optabs.c (expand_vector_broadcast, expand_binop_directly): Likewise.
10704         (shift_amt_for_vec_perm_mask, expand_vec_perm_var): Likewise.
10705         (expand_vec_cond_expr, expand_mult_highpart): Likewise.
10706         * rtlanal.c (subreg_get_info): Likewise.
10707         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
10708         (vect_grouped_load_supported): Likewise.
10709         * tree-vect-generic.c (type_for_widest_vector_mode): Likewise.
10710         * tree-vect-loop.c (have_whole_vector_shift): Likewise.
10711         * simplify-rtx.c (simplify_unary_operation_1): Likewise.
10712         (simplify_const_unary_operation, simplify_binary_operation_1)
10713         (simplify_const_binary_operation, simplify_ternary_operation)
10714         (test_vector_ops_duplicate, test_vector_ops): Likewise.
10715         (simplify_immed_subreg): Use GET_MODE_NUNITS on a fixed_size_mode
10716         instead of CONST_VECTOR_NUNITS.
10717         * varasm.c (output_constant_pool_2): Likewise.
10718         * rtx-vector-builder.c (rtx_vector_builder::build): Only include the
10719         explicit-encoded elements in the XVEC for variable-length vectors.
10720
10721 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10722
10723         * lra-constraints.c (curr_insn_transform): Use partial_subreg_p.
10724
10725 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10726             Alan Hayward  <alan.hayward@arm.com>
10727             David Sherwood  <david.sherwood@arm.com>
10728
10729         * coretypes.h (fixed_size_mode): Declare.
10730         (fixed_size_mode_pod): New typedef.
10731         * builtins.h (target_builtins::x_apply_args_mode)
10732         (target_builtins::x_apply_result_mode): Change type to
10733         fixed_size_mode_pod.
10734         * builtins.c (apply_args_size, apply_result_size, result_vector)
10735         (expand_builtin_apply_args_1, expand_builtin_apply)
10736         (expand_builtin_return): Update accordingly.
10737
10738 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10739
10740         * cse.c (hash_rtx_cb): Hash only the encoded elements.
10741         * cselib.c (cselib_hash_rtx): Likewise.
10742         * expmed.c (make_tree): Build VECTOR_CSTs directly from the
10743         CONST_VECTOR encoding.
10744
10745 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
10746             Jeff Law  <law@redhat.com>
10747
10748         PR target/83641
10749         * config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): For
10750         noreturn probe, use gen_pop instead of ix86_emit_restore_reg_using_pop,
10751         only set RTX_FRAME_RELATED_P on both the push and pop if cfa_reg is sp
10752         and add REG_CFA_ADJUST_CFA notes in that case to both insns.
10753
10754         PR target/83641
10755         * config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): Do not
10756         explicitly probe *sp in a noreturn function if there were any callee
10757         register saves or frame pointer is needed.
10758
10759 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
10760
10761         PR debug/83621
10762         * cfgexpand.c (expand_debug_expr): Return NULL if mode is
10763         BLKmode for ternary, binary or unary expressions.
10764
10765         PR debug/83645
10766         * var-tracking.c (delete_vta_debug_insn): New inline function.
10767         (delete_vta_debug_insns): Add USE_CFG argument, if true, walk just
10768         insns from get_insns () to NULL instead of each bb separately.
10769         Use delete_vta_debug_insn.  No longer static.
10770         (vt_debug_insns_local, variable_tracking_main_1): Adjust
10771         delete_vta_debug_insns callers.
10772         * rtl.h (delete_vta_debug_insns): Declare.
10773         * final.c (rest_of_handle_final): Call delete_vta_debug_insns
10774         instead of variable_tracking_main.
10775
10776 2018-01-03  Martin Sebor  <msebor@redhat.com>
10777
10778         PR tree-optimization/83603
10779         * calls.c (maybe_warn_nonstring_arg): Avoid accessing function
10780         arguments past the endof the argument list in functions declared
10781         without a prototype.
10782         * gimple-ssa-warn-restrict.c (wrestrict_dom_walker::check_call):
10783         Avoid checking when arguments are null.
10784
10785 2018-01-03  Martin Sebor  <msebor@redhat.com>
10786
10787         PR c/83559
10788         * doc/extend.texi (attribute const): Fix a typo.
10789         * ipa-pure-const.c ((warn_function_const, warn_function_pure): Avoid
10790         issuing -Wsuggest-attribute for void functions.
10791
10792 2018-01-03  Martin Sebor  <msebor@redhat.com>
10793
10794         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Use
10795         offset_int::from instead of wide_int::to_shwi.
10796         (maybe_diag_overlap): Remove assertion.
10797         Use HOST_WIDE_INT_PRINT_DEC instead of %lli.
10798         * gimple-ssa-sprintf.c (format_directive): Same.
10799         (parse_directive): Same.
10800         (sprintf_dom_walker::compute_format_length): Same.
10801         (try_substitute_return_value): Same.
10802
10803 2018-01-03  Jeff Law  <law@redhat.com>
10804
10805         PR middle-end/83654
10806         * explow.c (anti_adjust_stack_and_probe_stack_clash): Test a
10807         non-constant residual for zero at runtime and avoid probing in
10808         that case.  Reorganize code for trailing problem to mirror handling
10809         of the residual.
10810
10811 2018-01-03  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
10812
10813         PR tree-optimization/83501
10814         * tree-ssa-strlen.c (get_string_cst): New.
10815         (handle_char_store): Call get_string_cst.
10816
10817 2018-01-03  Martin Liska  <mliska@suse.cz>
10818
10819         PR tree-optimization/83593
10820         * tree-ssa-strlen.c: Include tree-cfg.h.
10821         (strlen_check_and_optimize_stmt): Add new argument cleanup_eh.
10822         (strlen_dom_walker): Add new member variable m_cleanup_cfg.
10823         (strlen_dom_walker::strlen_dom_walker): Initialize m_cleanup_cfg
10824         to false.
10825         (strlen_dom_walker::before_dom_children): Call
10826         gimple_purge_dead_eh_edges. Dump tranformation with details
10827         dump flags.
10828         (strlen_dom_walker::before_dom_children): Update call by adding
10829         new argument cleanup_eh.
10830         (pass_strlen::execute): Return TODO_cleanup_cfg if needed.
10831
10832 2018-01-03  Martin Liska  <mliska@suse.cz>
10833
10834         PR ipa/83549
10835         * cif-code.def (VARIADIC_THUNK): New enum value.
10836         * ipa-fnsummary.c (compute_fn_summary): Do not inline variadic
10837         thunks.
10838
10839 2018-01-03  Jan Beulich  <jbeulich@suse.com>
10840
10841         * sse.md (mov<mode>_internal): Tighten condition for when to use
10842         vmovdqu<ssescalarsize> for TI and OI modes.
10843
10844 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
10845
10846         Update copyright years.
10847
10848 2018-01-03  Martin Liska  <mliska@suse.cz>
10849
10850         PR ipa/83594
10851         * ipa-visibility.c (function_and_variable_visibility): Skip
10852         functions with noipa attribure.
10853
10854 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
10855
10856         * gcc.c (process_command): Update copyright notice dates.
10857         * gcov-dump.c (print_version): Ditto.
10858         * gcov.c (print_version): Ditto.
10859         * gcov-tool.c (print_version): Ditto.
10860         * gengtype.c (create_file): Ditto.
10861         * doc/cpp.texi: Bump @copying's copyright year.
10862         * doc/cppinternals.texi: Ditto.
10863         * doc/gcc.texi: Ditto.
10864         * doc/gccint.texi: Ditto.
10865         * doc/gcov.texi: Ditto.
10866         * doc/install.texi: Ditto.
10867         * doc/invoke.texi: Ditto.
10868
10869 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10870
10871         * vector-builder.h (vector_builder::m_full_nelts): Change from
10872         unsigned int to poly_uint64.
10873         (vector_builder::full_nelts): Update prototype accordingly.
10874         (vector_builder::new_vector): Likewise.
10875         (vector_builder::encoded_full_vector_p): Handle polynomial full_nelts.
10876         (vector_builder::operator ==): Likewise.
10877         (vector_builder::finalize): Likewise.
10878         * int-vector-builder.h (int_vector_builder::int_vector_builder):
10879         Take the number of elements as a poly_uint64 rather than an
10880         unsigned int.
10881         * vec-perm-indices.h (vec_perm_indices::m_nelts_per_input): Change
10882         from unsigned int to poly_uint64.
10883         (vec_perm_indices::vec_perm_indices): Update prototype accordingly.
10884         (vec_perm_indices::new_vector): Likewise.
10885         (vec_perm_indices::length): Likewise.
10886         (vec_perm_indices::nelts_per_input): Likewise.
10887         (vec_perm_indices::input_nelts): Likewise.
10888         * vec-perm-indices.c (vec_perm_indices::new_vector): Take the
10889         number of elements per input as a poly_uint64 rather than an
10890         unsigned int.  Use the original encoding for variable-length
10891         vectors, rather than clamping each individual element.
10892         For the second and subsequent elements in each pattern,
10893         clamp the step and base before clamping their sum.
10894         (vec_perm_indices::series_p): Handle polynomial element counts.
10895         (vec_perm_indices::all_in_range_p): Likewise.
10896         (vec_perm_indices_to_tree): Likewise.
10897         (vec_perm_indices_to_rtx): Likewise.
10898         * tree-vect-stmts.c (vect_gen_perm_mask_any): Likewise.
10899         * tree-vector-builder.c (tree_vector_builder::new_unary_operation)
10900         (tree_vector_builder::new_binary_operation): Handle polynomial
10901         element counts.  Return false if we need to know the number
10902         of elements at compile time.
10903         * fold-const.c (fold_vec_perm): Punt if the number of elements
10904         isn't known at compile time.
10905
10906 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10907
10908         * vec-perm-indices.h (vec_perm_builder): Change element type
10909         from HOST_WIDE_INT to poly_int64.
10910         (vec_perm_indices::element_type): Update accordingly.
10911         (vec_perm_indices::clamp): Handle polynomial element_types.
10912         * vec-perm-indices.c (vec_perm_indices::series_p): Likewise.
10913         (vec_perm_indices::all_in_range_p): Likewise.
10914         (tree_to_vec_perm_builder): Check for poly_int64 trees rather
10915         than shwi trees.
10916         * vector-builder.h (vector_builder::stepped_sequence_p): Handle
10917         polynomial vec_perm_indices element types.
10918         * int-vector-builder.h (int_vector_builder::equal_p): Likewise.
10919         * fold-const.c (fold_vec_perm): Likewise.
10920         * optabs.c (shift_amt_for_vec_perm_mask): Likewise.
10921         * tree-vect-generic.c (lower_vec_perm): Likewise.
10922         * tree-vect-slp.c (vect_transform_slp_perm_load): Likewise.
10923         * config/aarch64/aarch64.c (aarch64_evpc_tbl): Cast d->perm
10924         element type to HOST_WIDE_INT.
10925
10926 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10927             Alan Hayward  <alan.hayward@arm.com>
10928             David Sherwood  <david.sherwood@arm.com>
10929
10930         * alias.c (addr_side_effect_eval): Take the size as a poly_int64
10931         rather than an int.  Use plus_constant.
10932         (memrefs_conflict_p): Take the sizes as poly_int64s rather than ints.
10933         Take the offset "c" as a poly_int64 rather than a HOST_WIDE_INT.
10934
10935 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10936             Alan Hayward  <alan.hayward@arm.com>
10937             David Sherwood  <david.sherwood@arm.com>
10938
10939         * calls.c (emit_call_1, expand_call): Change struct_value_size from
10940         a HOST_WIDE_INT to a poly_int64.
10941
10942 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10943             Alan Hayward  <alan.hayward@arm.com>
10944             David Sherwood  <david.sherwood@arm.com>
10945
10946         * calls.c (load_register_parameters): Cope with polynomial
10947         mode sizes.  Require a constant size for BLKmode parameters
10948         that aren't described by a PARALLEL.  If BLOCK_REG_PADDING
10949         forces a parameter to be padded at the lsb end in order to
10950         fill a complete number of words, require the parameter size
10951         to be ordered wrt UNITS_PER_WORD.
10952
10953 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10954             Alan Hayward  <alan.hayward@arm.com>
10955             David Sherwood  <david.sherwood@arm.com>
10956
10957         * reload1.c (spill_stack_slot_width): Change element type
10958         from unsigned int to poly_uint64_pod.
10959         (alter_reg): Treat mode sizes as polynomial.
10960
10961 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10962             Alan Hayward  <alan.hayward@arm.com>
10963             David Sherwood  <david.sherwood@arm.com>
10964
10965         * reload.c (complex_word_subreg_p): New function.
10966         (reload_inner_reg_of_subreg, push_reload): Use it.
10967
10968 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10969             Alan Hayward  <alan.hayward@arm.com>
10970             David Sherwood  <david.sherwood@arm.com>
10971
10972         * lra-constraints.c (process_alt_operands): Reject matched
10973         operands whose sizes aren't ordered.
10974         (match_reload): Refer to this check here.
10975
10976 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10977             Alan Hayward  <alan.hayward@arm.com>
10978             David Sherwood  <david.sherwood@arm.com>
10979
10980         * builtins.c (expand_ifn_atomic_compare_exchange_into_call): Assert
10981         that the mode size is in the set {1, 2, 4, 8, 16}.
10982
10983 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10984             Alan Hayward  <alan.hayward@arm.com>
10985             David Sherwood  <david.sherwood@arm.com>
10986
10987         * var-tracking.c (adjust_mems): Treat mode sizes as polynomial.
10988         Use plus_constant instead of gen_rtx_PLUS.
10989
10990 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10991             Alan Hayward  <alan.hayward@arm.com>
10992             David Sherwood  <david.sherwood@arm.com>
10993
10994         * config/cr16/cr16-protos.h (cr16_push_rounding): Declare.
10995         * config/cr16/cr16.h (PUSH_ROUNDING): Move implementation to...
10996         * config/cr16/cr16.c (cr16_push_rounding): ...this new function.
10997         * config/h8300/h8300-protos.h (h8300_push_rounding): Declare.
10998         * config/h8300/h8300.h (PUSH_ROUNDING): Move implementation to...
10999         * config/h8300/h8300.c (h8300_push_rounding): ...this new function.
11000         * config/i386/i386-protos.h (ix86_push_rounding): Declare.
11001         * config/i386/i386.h (PUSH_ROUNDING): Move implementation to...
11002         * config/i386/i386.c (ix86_push_rounding): ...this new function.
11003         * config/m32c/m32c-protos.h (m32c_push_rounding): Take and return
11004         a poly_int64.
11005         * config/m32c/m32c.c (m32c_push_rounding): Likewise.
11006         * config/m68k/m68k-protos.h (m68k_push_rounding): Declare.
11007         * config/m68k/m68k.h (PUSH_ROUNDING): Move implementation to...
11008         * config/m68k/m68k.c (m68k_push_rounding): ...this new function.
11009         * config/pdp11/pdp11-protos.h (pdp11_push_rounding): Declare.
11010         * config/pdp11/pdp11.h (PUSH_ROUNDING): Move implementation to...
11011         * config/pdp11/pdp11.c (pdp11_push_rounding): ...this new function.
11012         * config/stormy16/stormy16-protos.h (xstormy16_push_rounding): Declare.
11013         * config/stormy16/stormy16.h (PUSH_ROUNDING): Move implementation to...
11014         * config/stormy16/stormy16.c (xstormy16_push_rounding): ...this new
11015         function.
11016         * expr.c (emit_move_resolve_push): Treat the input and result
11017         of PUSH_ROUNDING as a poly_int64.
11018         (emit_move_complex_push, emit_single_push_insn_1): Likewise.
11019         (emit_push_insn): Likewise.
11020         * lra-eliminations.c (mark_not_eliminable): Likewise.
11021         * recog.c (push_operand): Likewise.
11022         * reload1.c (elimination_effects): Likewise.
11023         * rtlanal.c (nonzero_bits1): Likewise.
11024         * calls.c (store_one_arg): Likewise.  Require the padding to be
11025         known at compile time.
11026
11027 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11028             Alan Hayward  <alan.hayward@arm.com>
11029             David Sherwood  <david.sherwood@arm.com>
11030
11031         * expr.c (emit_single_push_insn_1): Treat mode sizes as polynomial.
11032         Use plus_constant instead of gen_rtx_PLUS.
11033
11034 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11035             Alan Hayward  <alan.hayward@arm.com>
11036             David Sherwood  <david.sherwood@arm.com>
11037
11038         * auto-inc-dec.c (set_inc_state): Take the mode size as a poly_int64
11039         rather than an int.
11040
11041 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11042             Alan Hayward  <alan.hayward@arm.com>
11043             David Sherwood  <david.sherwood@arm.com>
11044
11045         * expr.c (expand_expr_real_1): Use tree_to_poly_uint64
11046         instead of int_size_in_bytes when handling VIEW_CONVERT_EXPRs
11047         via stack temporaries.  Treat the mode size as polynomial too.
11048
11049 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11050             Alan Hayward  <alan.hayward@arm.com>
11051             David Sherwood  <david.sherwood@arm.com>
11052
11053         * expr.c (expand_expr_real_2): When handling conversions involving
11054         unions, apply tree_to_poly_uint64 to the TYPE_SIZE rather than
11055         multiplying int_size_in_bytes by BITS_PER_UNIT.  Treat GET_MODE_BISIZE
11056         as a poly_uint64 too.
11057
11058 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11059             Alan Hayward  <alan.hayward@arm.com>
11060             David Sherwood  <david.sherwood@arm.com>
11061
11062         * rtlanal.c (subreg_get_info): Handle polynomial mode sizes.
11063
11064 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11065             Alan Hayward  <alan.hayward@arm.com>
11066             David Sherwood  <david.sherwood@arm.com>
11067
11068         * combine.c (can_change_dest_mode): Handle polynomial
11069         REGMODE_NATURAL_SIZE.
11070         * expmed.c (store_bit_field_1): Likewise.
11071         * expr.c (store_constructor): Likewise.
11072         * emit-rtl.c (validate_subreg): Operate on polynomial mode sizes
11073         and polynomial REGMODE_NATURAL_SIZE.
11074         (gen_lowpart_common): Likewise.
11075         * reginfo.c (record_subregs_of_mode): Likewise.
11076         * rtlanal.c (read_modify_subreg_p): Likewise.
11077
11078 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11079             Alan Hayward  <alan.hayward@arm.com>
11080             David Sherwood  <david.sherwood@arm.com>
11081
11082         * internal-fn.c (expand_vector_ubsan_overflow): Handle polynomial
11083         numbers of elements.
11084
11085 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11086             Alan Hayward  <alan.hayward@arm.com>
11087             David Sherwood  <david.sherwood@arm.com>
11088
11089         * match.pd: Cope with polynomial numbers of vector elements.
11090
11091 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11092             Alan Hayward  <alan.hayward@arm.com>
11093             David Sherwood  <david.sherwood@arm.com>
11094
11095         * fold-const.c (fold_indirect_ref_1): Handle polynomial offsets
11096         in a POINTER_PLUS_EXPR.
11097
11098 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11099             Alan Hayward  <alan.hayward@arm.com>
11100             David Sherwood  <david.sherwood@arm.com>
11101
11102         * omp-simd-clone.c (simd_clone_subparts): New function.
11103         (simd_clone_init_simd_arrays): Use it instead of TYPE_VECTOR_SUBPARTS.
11104         (ipa_simd_modify_function_body): Likewise.
11105
11106 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11107             Alan Hayward  <alan.hayward@arm.com>
11108             David Sherwood  <david.sherwood@arm.com>
11109
11110         * tree-vect-generic.c (nunits_for_known_piecewise_op): New function.
11111         (expand_vector_piecewise): Use it instead of TYPE_VECTOR_SUBPARTS.
11112         (expand_vector_addition, add_rshift, expand_vector_divmod): Likewise.
11113         (expand_vector_condition, vector_element): Likewise.
11114         (subparts_gt): New function.
11115         (get_compute_type): Use subparts_gt.
11116         (count_type_subparts): Delete.
11117         (expand_vector_operations_1): Use subparts_gt instead of
11118         count_type_subparts.
11119
11120 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11121             Alan Hayward  <alan.hayward@arm.com>
11122             David Sherwood  <david.sherwood@arm.com>
11123
11124         * tree-vect-data-refs.c (vect_no_alias_p): Replace with...
11125         (vect_compile_time_alias): ...this new function.  Do the calculation
11126         on poly_ints rather than trees.
11127         (vect_prune_runtime_alias_test_list): Update call accordingly.
11128
11129 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11130             Alan Hayward  <alan.hayward@arm.com>
11131             David Sherwood  <david.sherwood@arm.com>
11132
11133         * tree-vect-slp.c (vect_build_slp_tree_1): Handle polynomial
11134         numbers of units.
11135         (vect_schedule_slp_instance): Likewise.
11136
11137 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11138             Alan Hayward  <alan.hayward@arm.com>
11139             David Sherwood  <david.sherwood@arm.com>
11140
11141         * tree-vect-slp.c (vect_get_and_check_slp_defs): Reject
11142         constant and extern definitions for variable-length vectors.
11143         (vect_get_constant_vectors): Note that the number of units
11144         is known to be constant.
11145
11146 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11147             Alan Hayward  <alan.hayward@arm.com>
11148             David Sherwood  <david.sherwood@arm.com>
11149
11150         * tree-vect-stmts.c (vectorizable_conversion): Treat the number
11151         of units as polynomial.  Choose between WIDE and NARROW based
11152         on multiple_p.
11153
11154 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11155             Alan Hayward  <alan.hayward@arm.com>
11156             David Sherwood  <david.sherwood@arm.com>
11157
11158         * tree-vect-stmts.c (simd_clone_subparts): New function.
11159         (vectorizable_simd_clone_call): Use it instead of TYPE_VECTOR_SUBPARTS.
11160
11161 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11162             Alan Hayward  <alan.hayward@arm.com>
11163             David Sherwood  <david.sherwood@arm.com>
11164
11165         * tree-vect-stmts.c (vectorizable_call): Treat the number of
11166         vectors as polynomial.  Use build_index_vector for
11167         IFN_GOMP_SIMD_LANE.
11168
11169 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11170             Alan Hayward  <alan.hayward@arm.com>
11171             David Sherwood  <david.sherwood@arm.com>
11172
11173         * tree-vect-stmts.c (get_load_store_type): Treat the number of
11174         units as polynomial.  Reject VMAT_ELEMENTWISE and VMAT_STRIDED_SLP
11175         for variable-length vectors.
11176         (vectorizable_mask_load_store): Treat the number of units as
11177         polynomial, asserting that it is constant if the condition has
11178         already been enforced.
11179         (vectorizable_store, vectorizable_load): Likewise.
11180
11181 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11182             Alan Hayward  <alan.hayward@arm.com>
11183             David Sherwood  <david.sherwood@arm.com>
11184
11185         * tree-vect-loop.c (vectorizable_live_operation): Treat the number
11186         of units as polynomial.  Punt if we can't tell at compile time
11187         which vector contains the final result.
11188
11189 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11190             Alan Hayward  <alan.hayward@arm.com>
11191             David Sherwood  <david.sherwood@arm.com>
11192
11193         * tree-vect-loop.c (vectorizable_induction): Treat the number
11194         of units as polynomial.  Punt on SLP inductions.  Use an integer
11195         VEC_SERIES_EXPR for variable-length integer reductions.  Use a
11196         cast of such a series for variable-length floating-point
11197         reductions.
11198
11199 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11200             Alan Hayward  <alan.hayward@arm.com>
11201             David Sherwood  <david.sherwood@arm.com>
11202
11203         * tree.h (build_index_vector): Declare.
11204         * tree.c (build_index_vector): New function.
11205         * tree-vect-loop.c (get_initial_defs_for_reduction): Treat the number
11206         of units as polynomial, forcibly converting it to a constant if
11207         vectorizable_reduction has already enforced the condition.
11208         (vect_create_epilog_for_reduction): Likewise.  Use build_index_vector
11209         to create a {1,2,3,...} vector.
11210         (vectorizable_reduction): Treat the number of units as polynomial.
11211         Choose vectype_in based on the largest scalar element size rather
11212         than the smallest number of units.  Enforce the restrictions
11213         relied on above.
11214
11215 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11216             Alan Hayward  <alan.hayward@arm.com>
11217             David Sherwood  <david.sherwood@arm.com>
11218
11219         * tree-vect-data-refs.c (vector_alignment_reachable_p): Treat the
11220         number of units as polynomial.
11221
11222 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11223             Alan Hayward  <alan.hayward@arm.com>
11224             David Sherwood  <david.sherwood@arm.com>
11225
11226         * target.h (vector_sizes, auto_vector_sizes): New typedefs.
11227         * target.def (autovectorize_vector_sizes): Return the vector sizes
11228         by pointer, using vector_sizes rather than a bitmask.
11229         * targhooks.h (default_autovectorize_vector_sizes): Update accordingly.
11230         * targhooks.c (default_autovectorize_vector_sizes): Likewise.
11231         * config/aarch64/aarch64.c (aarch64_autovectorize_vector_sizes):
11232         Likewise.
11233         * config/arc/arc.c (arc_autovectorize_vector_sizes): Likewise.
11234         * config/arm/arm.c (arm_autovectorize_vector_sizes): Likewise.
11235         * config/i386/i386.c (ix86_autovectorize_vector_sizes): Likewise.
11236         * config/mips/mips.c (mips_autovectorize_vector_sizes): Likewise.
11237         * omp-general.c (omp_max_vf): Likewise.
11238         * omp-low.c (omp_clause_aligned_alignment): Likewise.
11239         * optabs-query.c (can_vec_mask_load_store_p): Likewise.
11240         * tree-vect-loop.c (vect_analyze_loop): Likewise.
11241         * tree-vect-slp.c (vect_slp_bb): Likewise.
11242         * doc/tm.texi: Regenerate.
11243         * tree-vectorizer.h (current_vector_size): Change from an unsigned int
11244         to a poly_uint64.
11245         * tree-vect-stmts.c (get_vectype_for_scalar_type_and_size): Take
11246         the vector size as a poly_uint64 rather than an unsigned int.
11247         (current_vector_size): Change from an unsigned int to a poly_uint64.
11248         (get_vectype_for_scalar_type): Update accordingly.
11249         * tree.h (build_truth_vector_type): Take the size and number of
11250         units as a poly_uint64 rather than an unsigned int.
11251         (build_vector_type): Add a temporary overload that takes
11252         the number of units as a poly_uint64 rather than an unsigned int.
11253         * tree.c (make_vector_type): Likewise.
11254         (build_truth_vector_type): Take the number of units as a poly_uint64
11255         rather than an unsigned int.
11256
11257 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11258             Alan Hayward  <alan.hayward@arm.com>
11259             David Sherwood  <david.sherwood@arm.com>
11260
11261         * target.def (get_mask_mode): Take the number of units and length
11262         as poly_uint64s rather than unsigned ints.
11263         * targhooks.h (default_get_mask_mode): Update accordingly.
11264         * targhooks.c (default_get_mask_mode): Likewise.
11265         * config/i386/i386.c (ix86_get_mask_mode): Likewise.
11266         * doc/tm.texi: Regenerate.
11267
11268 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11269             Alan Hayward  <alan.hayward@arm.com>
11270             David Sherwood  <david.sherwood@arm.com>
11271
11272         * omp-general.h (omp_max_vf): Return a poly_uint64 instead of an int.
11273         * omp-general.c (omp_max_vf): Likewise.
11274         * omp-expand.c (omp_adjust_chunk_size): Update call to omp_max_vf.
11275         (expand_omp_simd): Handle polynomial safelen.
11276         * omp-low.c (omplow_simd_context): Add a default constructor.
11277         (omplow_simd_context::max_vf): Change from int to poly_uint64.
11278         (lower_rec_simd_input_clauses): Update accordingly.
11279         (lower_rec_input_clauses): Likewise.
11280
11281 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11282             Alan Hayward  <alan.hayward@arm.com>
11283             David Sherwood  <david.sherwood@arm.com>
11284
11285         * tree-vectorizer.h (vect_nunits_for_cost): New function.
11286         * tree-vect-loop.c (vect_model_reduction_cost): Use it.
11287         * tree-vect-slp.c (vect_analyze_slp_cost_1): Likewise.
11288         (vect_analyze_slp_cost): Likewise.
11289         * tree-vect-stmts.c (vect_model_store_cost): Likewise.
11290         (vect_model_load_cost): Likewise.
11291
11292 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11293             Alan Hayward  <alan.hayward@arm.com>
11294             David Sherwood  <david.sherwood@arm.com>
11295
11296         * tree-vect-slp.c (vect_record_max_nunits, vect_build_slp_tree_1)
11297         (vect_build_slp_tree_2, vect_build_slp_tree): Change max_nunits
11298         from an unsigned int * to a poly_uint64_pod *.
11299         (calculate_unrolling_factor): New function.
11300         (vect_analyze_slp_instance): Use it.  Track polynomial max_nunits.
11301
11302 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11303             Alan Hayward  <alan.hayward@arm.com>
11304             David Sherwood  <david.sherwood@arm.com>
11305
11306         * tree-vectorizer.h (_slp_instance::unrolling_factor): Change
11307         from an unsigned int to a poly_uint64.
11308         (_loop_vec_info::slp_unrolling_factor): Likewise.
11309         (_loop_vec_info::vectorization_factor): Change from an int
11310         to a poly_uint64.
11311         (MAX_VECTORIZATION_FACTOR): Bump from 64 to INT_MAX.
11312         (vect_get_num_vectors): New function.
11313         (vect_update_max_nunits, vect_vf_for_cost): Likewise.
11314         (vect_get_num_copies): Use vect_get_num_vectors.
11315         (vect_analyze_data_ref_dependences): Change max_vf from an int *
11316         to an unsigned int *.
11317         (vect_analyze_data_refs): Change min_vf from an int * to a
11318         poly_uint64 *.
11319         (vect_transform_slp_perm_load): Take the vf as a poly_uint64 rather
11320         than an unsigned HOST_WIDE_INT.
11321         * tree-vect-data-refs.c (vect_analyze_possibly_independent_ddr)
11322         (vect_analyze_data_ref_dependence): Change max_vf from an int *
11323         to an unsigned int *.
11324         (vect_analyze_data_ref_dependences): Likewise.
11325         (vect_compute_data_ref_alignment): Handle polynomial vf.
11326         (vect_enhance_data_refs_alignment): Likewise.
11327         (vect_prune_runtime_alias_test_list): Likewise.
11328         (vect_shift_permute_load_chain): Likewise.
11329         (vect_supportable_dr_alignment): Likewise.
11330         (dependence_distance_ge_vf): Take the vectorization factor as a
11331         poly_uint64 rather than an unsigned HOST_WIDE_INT.
11332         (vect_analyze_data_refs): Change min_vf from an int * to a
11333         poly_uint64 *.
11334         * tree-vect-loop-manip.c (vect_gen_scalar_loop_niters): Take
11335         vfm1 as a poly_uint64 rather than an int.  Make the same change
11336         for the returned bound_scalar.
11337         (vect_gen_vector_loop_niters): Handle polynomial vf.
11338         (vect_do_peeling): Likewise.  Update call to
11339         vect_gen_scalar_loop_niters and handle polynomial bound_scalars.
11340         (vect_gen_vector_loop_niters_mult_vf): Assert that the vf must
11341         be constant.
11342         * tree-vect-loop.c (vect_determine_vectorization_factor)
11343         (vect_update_vf_for_slp, vect_analyze_loop_2): Handle polynomial vf.
11344         (vect_get_known_peeling_cost): Likewise.
11345         (vect_estimate_min_profitable_iters, vectorizable_reduction): Likewise.
11346         (vect_worthwhile_without_simd_p, vectorizable_induction): Likewise.
11347         (vect_transform_loop): Likewise.  Use the lowest possible VF when
11348         updating the upper bounds of the loop.
11349         (vect_min_worthwhile_factor): Make static.  Return an unsigned int
11350         rather than an int.
11351         * tree-vect-slp.c (vect_attempt_slp_rearrange_stmts): Cope with
11352         polynomial unroll factors.
11353         (vect_analyze_slp_cost_1, vect_analyze_slp_instance): Likewise.
11354         (vect_make_slp_decision): Likewise.
11355         (vect_supported_load_permutation_p): Likewise, and polynomial
11356         vf too.
11357         (vect_analyze_slp_cost): Handle polynomial vf.
11358         (vect_slp_analyze_node_operations): Likewise.
11359         (vect_slp_analyze_bb_1): Likewise.
11360         (vect_transform_slp_perm_load): Take the vf as a poly_uint64 rather
11361         than an unsigned HOST_WIDE_INT.
11362         * tree-vect-stmts.c (vectorizable_simd_clone_call, vectorizable_store)
11363         (vectorizable_load): Handle polynomial vf.
11364         * tree-vectorizer.c (simduid_to_vf::vf): Change from an int to
11365         a poly_uint64.
11366         (adjust_simduid_builtins, shrink_simd_arrays): Update accordingly.
11367
11368 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11369             Alan Hayward  <alan.hayward@arm.com>
11370             David Sherwood  <david.sherwood@arm.com>
11371
11372         * match.pd: Handle bit operations involving three constants
11373         and try to fold one pair.
11374
11375 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11376
11377         * tree-vect-loop-manip.c: Include gimple-fold.h.
11378         (slpeel_make_loop_iterate_ntimes): Add step, final_iv and
11379         niters_maybe_zero parameters.  Handle other cases besides a step of 1.
11380         (vect_gen_vector_loop_niters): Add a step_vector_ptr parameter.
11381         Add a path that uses a step of VF instead of 1, but disable it
11382         for now.
11383         (vect_do_peeling): Add step_vector, niters_vector_mult_vf_var
11384         and niters_no_overflow parameters.  Update calls to
11385         slpeel_make_loop_iterate_ntimes and vect_gen_vector_loop_niters.
11386         Create a new SSA name if the latter choses to use a ste other
11387         than zero, and return it via niters_vector_mult_vf_var.
11388         * tree-vect-loop.c (vect_transform_loop): Update calls to
11389         vect_do_peeling, vect_gen_vector_loop_niters and
11390         slpeel_make_loop_iterate_ntimes.
11391         * tree-vectorizer.h (slpeel_make_loop_iterate_ntimes, vect_do_peeling)
11392         (vect_gen_vector_loop_niters): Update declarations after above changes.
11393
11394 2018-01-02  Michael Meissner  <meissner@linux.vnet.ibm.com>
11395
11396         * config/rs6000/rs6000.md (floor<mode>2): Add support for IEEE
11397         128-bit round to integer instructions.
11398         (ceil<mode>2): Likewise.
11399         (btrunc<mode>2): Likewise.
11400         (round<mode>2): Likewise.
11401
11402 2018-01-02  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
11403
11404         * config/rs6000/rs6000-string.c (expand_block_move): Allow the use of
11405         unaligned VSX load/store on P8/P9.
11406         (expand_block_clear): Allow the use of unaligned VSX
11407         load/store on P8/P9.
11408
11409 2018-01-02  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
11410
11411         * config/rs6000/rs6000-p8swap.c (swap_feeds_both_load_and_store):
11412         New function.
11413         (rs6000_analyze_swaps): Mark a web unoptimizable if it contains a
11414         swap associated with both a load and a store.
11415
11416 2018-01-02  Andrew Waterman  <andrew@sifive.com>
11417
11418         * config/riscv/linux.h (ICACHE_FLUSH_FUNC): New.
11419         * config/riscv/riscv.md (clear_cache): Use it.
11420
11421 2018-01-02  Artyom Skrobov  <tyomitch@gmail.com>
11422
11423         * web.c: Remove out-of-date comment.
11424
11425 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11426
11427         * expr.c (fixup_args_size_notes): Check that any existing
11428         REG_ARGS_SIZE notes are correct, and don't try to re-add them.
11429         (emit_single_push_insn_1): Move stack_pointer_delta adjustment to...
11430         (emit_single_push_insn): ...here.
11431
11432 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11433
11434         * rtl.h (CONST_VECTOR_ELT): Redefine to const_vector_elt.
11435         (const_vector_encoded_nelts): New function.
11436         (CONST_VECTOR_NUNITS): Redefine to use GET_MODE_NUNITS.
11437         (const_vector_int_elt, const_vector_elt): Declare.
11438         * emit-rtl.c (const_vector_int_elt_1): New function.
11439         (const_vector_elt): Likewise.
11440         * simplify-rtx.c (simplify_immed_subreg): Avoid taking the address
11441         of CONST_VECTOR_ELT.
11442
11443 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11444
11445         * expr.c: Include rtx-vector-builder.h.
11446         (const_vector_mask_from_tree): Use rtx_vector_builder and operate
11447         directly on the tree encoding.
11448         (const_vector_from_tree): Likewise.
11449         * optabs.c: Include rtx-vector-builder.h.
11450         (expand_vec_perm_var): Use rtx_vector_builder and create a repeating
11451         sequence of "u" values.
11452         * vec-perm-indices.c: Include rtx-vector-builder.h.
11453         (vec_perm_indices_to_rtx): Use rtx_vector_builder and operate
11454         directly on the vec_perm_indices encoding.
11455
11456 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11457
11458         * doc/rtl.texi (const_vector): Describe new encoding scheme.
11459         * Makefile.in (OBJS): Add rtx-vector-builder.o.
11460         * rtx-vector-builder.h: New file.
11461         * rtx-vector-builder.c: Likewise.
11462         * rtl.h (rtx_def::u2): Add a const_vector field.
11463         (CONST_VECTOR_NPATTERNS): New macro.
11464         (CONST_VECTOR_NELTS_PER_PATTERN): Likewise.
11465         (CONST_VECTOR_DUPLICATE_P): Likewise.
11466         (CONST_VECTOR_STEPPED_P): Likewise.
11467         (CONST_VECTOR_ENCODED_ELT): Likewise.
11468         (const_vec_duplicate_p): Check for a duplicated vector encoding.
11469         (unwrap_const_vec_duplicate): Likewise.
11470         (const_vec_series_p): Check for a non-duplicated vector encoding.
11471         Say that the function only returns true for integer vectors.
11472         * emit-rtl.c: Include rtx-vector-builder.h.
11473         (gen_const_vec_duplicate_1): Delete.
11474         (gen_const_vector): Call gen_const_vec_duplicate instead of
11475         gen_const_vec_duplicate_1.
11476         (const_vec_series_p_1): Operate directly on the CONST_VECTOR encoding.
11477         (gen_const_vec_duplicate): Use rtx_vector_builder.
11478         (gen_const_vec_series): Likewise.
11479         (gen_rtx_CONST_VECTOR): Likewise.
11480         * config/powerpcspe/powerpcspe.c: Include rtx-vector-builder.h.
11481         (swap_const_vector_halves): Take an rtx pointer rather than rtx.
11482         Build a new vector rather than modifying a CONST_VECTOR in-place.
11483         (handle_special_swappables): Update call accordingly.
11484         * config/rs6000/rs6000-p8swap.c: Include rtx-vector-builder.h.
11485         (swap_const_vector_halves): Take an rtx pointer rather than rtx.
11486         Build a new vector rather than modifying a CONST_VECTOR in-place.
11487         (handle_special_swappables): Update call accordingly.
11488
11489 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11490
11491         * simplify-rtx.c (simplify_const_binary_operation): Use
11492         CONST_VECTOR_ELT instead of XVECEXP.
11493
11494 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11495
11496         * tree-cfg.c (verify_gimple_assign_ternary): Allow the size of
11497         the selector elements to be different from the data elements
11498         if the selector is a VECTOR_CST.
11499         * tree-vect-stmts.c (vect_gen_perm_mask_any): Use a vector of
11500         ssizetype for the selector.
11501
11502 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11503
11504         * optabs.c (shift_amt_for_vec_perm_mask): Try using series_p
11505         before testing each element individually.
11506         * tree-vect-generic.c (lower_vec_perm): Likewise.
11507
11508 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11509
11510         * selftest.h (selftest::vec_perm_indices_c_tests): Declare.
11511         * selftest-run-tests.c (selftest::run_tests): Call it.
11512         * vector-builder.h (vector_builder::operator ==): New function.
11513         (vector_builder::operator !=): Likewise.
11514         * vec-perm-indices.h (vec_perm_indices::series_p): Declare.
11515         (vec_perm_indices::all_from_input_p): New function.
11516         * vec-perm-indices.c (vec_perm_indices::series_p): Likewise.
11517         (test_vec_perm_12, selftest::vec_perm_indices_c_tests): Likewise.
11518         * fold-const.c (fold_ternary_loc): Use tree_to_vec_perm_builder
11519         instead of reading the VECTOR_CST directly.  Detect whether both
11520         vector inputs are the same before constructing the vec_perm_indices,
11521         and update the number of inputs argument accordingly.  Use the
11522         utility functions added above.  Only construct sel2 if we need to.
11523
11524 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11525
11526         * optabs.c (expand_vec_perm_var): Use an explicit encoding for
11527         the broadcast of the low byte.
11528         (expand_mult_highpart): Use an explicit encoding for the permutes.
11529         * optabs-query.c (can_mult_highpart_p): Likewise.
11530         * tree-vect-loop.c (calc_vec_perm_mask_for_shift): Likewise.
11531         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
11532         (vectorizable_bswap): Likewise.
11533         * tree-vect-data-refs.c (vect_grouped_store_supported): Use an
11534         explicit encoding for the power-of-2 permutes.
11535         (vect_permute_store_chain): Likewise.
11536         (vect_grouped_load_supported): Likewise.
11537         (vect_permute_load_chain): Likewise.
11538
11539 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11540
11541         * vec-perm-indices.h (vec_perm_indices_to_tree): Declare.
11542         * vec-perm-indices.c (vec_perm_indices_to_tree): New function.
11543         * tree-ssa-forwprop.c (simplify_vector_constructor): Use it.
11544         * tree-vect-slp.c (vect_transform_slp_perm_load): Likewise.
11545         * tree-vect-stmts.c (vectorizable_bswap): Likewise.
11546         (vect_gen_perm_mask_any): Likewise.
11547
11548 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11549
11550         * int-vector-builder.h: New file.
11551         * vec-perm-indices.h: Include int-vector-builder.h.
11552         (vec_perm_indices): Redefine as an int_vector_builder.
11553         (auto_vec_perm_indices): Delete.
11554         (vec_perm_builder): Redefine as a stand-alone class.
11555         (vec_perm_indices::vec_perm_indices): New function.
11556         (vec_perm_indices::clamp): Likewise.
11557         * vec-perm-indices.c: Include fold-const.h and tree-vector-builder.h.
11558         (vec_perm_indices::new_vector): New function.
11559         (vec_perm_indices::new_expanded_vector): Update for new
11560         vec_perm_indices class.
11561         (vec_perm_indices::rotate_inputs): New function.
11562         (vec_perm_indices::all_in_range_p): Operate directly on the
11563         encoded form, without computing elided elements.
11564         (tree_to_vec_perm_builder): Operate directly on the VECTOR_CST
11565         encoding.  Update for new vec_perm_indices class.
11566         * optabs.c (expand_vec_perm_const): Create a vec_perm_indices for
11567         the given vec_perm_builder.
11568         (expand_vec_perm_var): Update vec_perm_builder constructor.
11569         (expand_mult_highpart): Use vec_perm_builder instead of
11570         auto_vec_perm_indices.
11571         * optabs-query.c (can_mult_highpart_p): Use vec_perm_builder and
11572         vec_perm_indices instead of auto_vec_perm_indices.  Use a single
11573         or double series encoding as appropriate.
11574         * fold-const.c (fold_ternary_loc): Use vec_perm_builder and
11575         vec_perm_indices instead of auto_vec_perm_indices.
11576         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
11577         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
11578         (vect_permute_store_chain): Likewise.
11579         (vect_grouped_load_supported): Likewise.
11580         (vect_permute_load_chain): Likewise.
11581         (vect_shift_permute_load_chain): Likewise.
11582         * tree-vect-slp.c (vect_build_slp_tree_1): Likewise.
11583         (vect_transform_slp_perm_load): Likewise.
11584         (vect_schedule_slp_instance): Likewise.
11585         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
11586         (vectorizable_mask_load_store): Likewise.
11587         (vectorizable_bswap): Likewise.
11588         (vectorizable_store): Likewise.
11589         (vectorizable_load): Likewise.
11590         * tree-vect-generic.c (lower_vec_perm): Use vec_perm_builder and
11591         vec_perm_indices instead of auto_vec_perm_indices.  Use
11592         tree_to_vec_perm_builder to read the vector from a tree.
11593         * tree-vect-loop.c (calc_vec_perm_mask_for_shift): Take a
11594         vec_perm_builder instead of a vec_perm_indices.
11595         (have_whole_vector_shift): Use vec_perm_builder and
11596         vec_perm_indices instead of auto_vec_perm_indices.  Leave the
11597         truncation to calc_vec_perm_mask_for_shift.
11598         (vect_create_epilog_for_reduction): Likewise.
11599         * config/aarch64/aarch64.c (expand_vec_perm_d::perm): Change
11600         from auto_vec_perm_indices to vec_perm_indices.
11601         (aarch64_expand_vec_perm_const_1): Use rotate_inputs on d.perm
11602         instead of changing individual elements.
11603         (aarch64_vectorize_vec_perm_const): Use new_vector to install
11604         the vector in d.perm.
11605         * config/arm/arm.c (expand_vec_perm_d::perm): Change
11606         from auto_vec_perm_indices to vec_perm_indices.
11607         (arm_expand_vec_perm_const_1): Use rotate_inputs on d.perm
11608         instead of changing individual elements.
11609         (arm_vectorize_vec_perm_const): Use new_vector to install
11610         the vector in d.perm.
11611         * config/powerpcspe/powerpcspe.c (rs6000_expand_extract_even):
11612         Update vec_perm_builder constructor.
11613         (rs6000_expand_interleave): Likewise.
11614         * config/rs6000/rs6000.c (rs6000_expand_extract_even): Likewise.
11615         (rs6000_expand_interleave): Likewise.
11616
11617 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11618
11619         * optabs-query.c (can_vec_perm_var_p): Check whether lowering
11620         to qimode could truncate the indices.
11621         * optabs.c (expand_vec_perm_var): Likewise.
11622
11623 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11624
11625         * Makefile.in (OBJS): Add vec-perm-indices.o.
11626         * vec-perm-indices.h: New file.
11627         * vec-perm-indices.c: Likewise.
11628         * target.h (vec_perm_indices): Replace with a forward class
11629         declaration.
11630         (auto_vec_perm_indices): Move to vec-perm-indices.h.
11631         * optabs.h: Include vec-perm-indices.h.
11632         (expand_vec_perm): Delete.
11633         (selector_fits_mode_p, expand_vec_perm_var): Declare.
11634         (expand_vec_perm_const): Declare.
11635         * target.def (vec_perm_const_ok): Replace with...
11636         (vec_perm_const): ...this new hook.
11637         * doc/tm.texi.in (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Replace with...
11638         (TARGET_VECTORIZE_VEC_PERM_CONST): ...this new hook.
11639         * doc/tm.texi: Regenerate.
11640         * optabs.def (vec_perm_const): Delete.
11641         * doc/md.texi (vec_perm_const): Likewise.
11642         (vec_perm): Refer to TARGET_VECTORIZE_VEC_PERM_CONST.
11643         * expr.c (expand_expr_real_2): Use expand_vec_perm_const rather than
11644         expand_vec_perm for constant permutation vectors.  Assert that
11645         the mode of variable permutation vectors is the integer equivalent
11646         of the mode that is being permuted.
11647         * optabs-query.h (selector_fits_mode_p): Declare.
11648         * optabs-query.c: Include vec-perm-indices.h.
11649         (selector_fits_mode_p): New function.
11650         (can_vec_perm_const_p): Check whether targetm.vectorize.vec_perm_const
11651         is defined, instead of checking whether the vec_perm_const_optab
11652         exists.  Use targetm.vectorize.vec_perm_const instead of
11653         targetm.vectorize.vec_perm_const_ok.  Check whether the indices
11654         fit in the vector mode before using a variable permute.
11655         * optabs.c (shift_amt_for_vec_perm_mask): Take a mode and a
11656         vec_perm_indices instead of an rtx.
11657         (expand_vec_perm): Replace with...
11658         (expand_vec_perm_const): ...this new function.  Take the selector
11659         as a vec_perm_indices rather than an rtx.  Also take the mode of
11660         the selector.  Update call to shift_amt_for_vec_perm_mask.
11661         Use targetm.vectorize.vec_perm_const instead of vec_perm_const_optab.
11662         Use vec_perm_indices::new_expanded_vector to expand the original
11663         selector into bytes.  Check whether the indices fit in the vector
11664         mode before using a variable permute.
11665         (expand_vec_perm_var): Make global.
11666         (expand_mult_highpart): Use expand_vec_perm_const.
11667         * fold-const.c: Includes vec-perm-indices.h.
11668         * tree-ssa-forwprop.c: Likewise.
11669         * tree-vect-data-refs.c: Likewise.
11670         * tree-vect-generic.c: Likewise.
11671         * tree-vect-loop.c: Likewise.
11672         * tree-vect-slp.c: Likewise.
11673         * tree-vect-stmts.c: Likewise.
11674         * config/aarch64/aarch64-protos.h (aarch64_expand_vec_perm_const):
11675         Delete.
11676         * config/aarch64/aarch64-simd.md (vec_perm_const<mode>): Delete.
11677         * config/aarch64/aarch64.c (aarch64_expand_vec_perm_const)
11678         (aarch64_vectorize_vec_perm_const_ok): Fuse into...
11679         (aarch64_vectorize_vec_perm_const): ...this new function.
11680         (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
11681         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
11682         * config/arm/arm-protos.h (arm_expand_vec_perm_const): Delete.
11683         * config/arm/vec-common.md (vec_perm_const<mode>): Delete.
11684         * config/arm/arm.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
11685         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
11686         (arm_expand_vec_perm_const, arm_vectorize_vec_perm_const_ok): Merge
11687         into...
11688         (arm_vectorize_vec_perm_const): ...this new function.  Explicitly
11689         check for NEON modes.
11690         * config/i386/i386-protos.h (ix86_expand_vec_perm_const): Delete.
11691         * config/i386/sse.md (VEC_PERM_CONST, vec_perm_const<mode>): Delete.
11692         * config/i386/i386.c (ix86_expand_vec_perm_const_1): Update comment.
11693         (ix86_expand_vec_perm_const, ix86_vectorize_vec_perm_const_ok): Merge
11694         into...
11695         (ix86_vectorize_vec_perm_const): ...this new function.  Incorporate
11696         the old VEC_PERM_CONST conditions.
11697         * config/ia64/ia64-protos.h (ia64_expand_vec_perm_const): Delete.
11698         * config/ia64/vect.md (vec_perm_const<mode>): Delete.
11699         * config/ia64/ia64.c (ia64_expand_vec_perm_const)
11700         (ia64_vectorize_vec_perm_const_ok): Merge into...
11701         (ia64_vectorize_vec_perm_const): ...this new function.
11702         * config/mips/loongson.md (vec_perm_const<mode>): Delete.
11703         * config/mips/mips-msa.md (vec_perm_const<mode>): Delete.
11704         * config/mips/mips-ps-3d.md (vec_perm_constv2sf): Delete.
11705         * config/mips/mips-protos.h (mips_expand_vec_perm_const): Delete.
11706         * config/mips/mips.c (mips_expand_vec_perm_const)
11707         (mips_vectorize_vec_perm_const_ok): Merge into...
11708         (mips_vectorize_vec_perm_const): ...this new function.
11709         * config/powerpcspe/altivec.md (vec_perm_constv16qi): Delete.
11710         * config/powerpcspe/paired.md (vec_perm_constv2sf): Delete.
11711         * config/powerpcspe/spe.md (vec_perm_constv2si): Delete.
11712         * config/powerpcspe/vsx.md (vec_perm_const<mode>): Delete.
11713         * config/powerpcspe/powerpcspe-protos.h (altivec_expand_vec_perm_const)
11714         (rs6000_expand_vec_perm_const): Delete.
11715         * config/powerpcspe/powerpcspe.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK):
11716         Delete.
11717         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
11718         (altivec_expand_vec_perm_const_le): Take each operand individually.
11719         Operate on constant selectors rather than rtxes.
11720         (altivec_expand_vec_perm_const): Likewise.  Update call to
11721         altivec_expand_vec_perm_const_le.
11722         (rs6000_expand_vec_perm_const): Delete.
11723         (rs6000_vectorize_vec_perm_const_ok): Delete.
11724         (rs6000_vectorize_vec_perm_const): New function.
11725         (rs6000_do_expand_vec_perm): Take a vec_perm_builder instead of
11726         an element count and rtx array.
11727         (rs6000_expand_extract_even): Update call accordingly.
11728         (rs6000_expand_interleave): Likewise.
11729         * config/rs6000/altivec.md (vec_perm_constv16qi): Delete.
11730         * config/rs6000/paired.md (vec_perm_constv2sf): Delete.
11731         * config/rs6000/vsx.md (vec_perm_const<mode>): Delete.
11732         * config/rs6000/rs6000-protos.h (altivec_expand_vec_perm_const)
11733         (rs6000_expand_vec_perm_const): Delete.
11734         * config/rs6000/rs6000.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
11735         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
11736         (altivec_expand_vec_perm_const_le): Take each operand individually.
11737         Operate on constant selectors rather than rtxes.
11738         (altivec_expand_vec_perm_const): Likewise.  Update call to
11739         altivec_expand_vec_perm_const_le.
11740         (rs6000_expand_vec_perm_const): Delete.
11741         (rs6000_vectorize_vec_perm_const_ok): Delete.
11742         (rs6000_vectorize_vec_perm_const): New function.  Remove stray
11743         reference to the SPE evmerge intructions.
11744         (rs6000_do_expand_vec_perm): Take a vec_perm_builder instead of
11745         an element count and rtx array.
11746         (rs6000_expand_extract_even): Update call accordingly.
11747         (rs6000_expand_interleave): Likewise.
11748         * config/sparc/sparc.md (vec_perm_constv8qi): Delete in favor of...
11749         * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): ...this
11750         new function.
11751         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
11752
11753 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11754
11755         * optabs.c (expand_vec_perm_1): Assert that SEL has an integer
11756         vector mode and that that mode matches the mode of the data
11757         being permuted.
11758         (expand_vec_perm): Split handling of non-CONST_VECTOR selectors
11759         out into expand_vec_perm_var.  Do all CONST_VECTOR handling here,
11760         directly using expand_vec_perm_1 when forcing selectors into
11761         registers.
11762         (expand_vec_perm_var): New function, split out from expand_vec_perm.
11763
11764 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11765
11766         * optabs-query.h (can_vec_perm_p): Delete.
11767         (can_vec_perm_var_p, can_vec_perm_const_p): Declare.
11768         * optabs-query.c (can_vec_perm_p): Split into...
11769         (can_vec_perm_var_p, can_vec_perm_const_p): ...these two functions.
11770         (can_mult_highpart_p): Use can_vec_perm_const_p to test whether a
11771         particular selector is valid.
11772         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
11773         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
11774         (vect_grouped_load_supported): Likewise.
11775         (vect_shift_permute_load_chain): Likewise.
11776         * tree-vect-slp.c (vect_build_slp_tree_1): Likewise.
11777         (vect_transform_slp_perm_load): Likewise.
11778         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
11779         (vectorizable_bswap): Likewise.
11780         (vect_gen_perm_mask_checked): Likewise.
11781         * fold-const.c (fold_ternary_loc): Likewise.  Don't take
11782         implementations of variable permutation vectors into account
11783         when deciding which selector to use.
11784         * tree-vect-loop.c (have_whole_vector_shift): Don't check whether
11785         vec_perm_const_optab is supported; instead use can_vec_perm_const_p
11786         with a false third argument.
11787         * tree-vect-generic.c (lower_vec_perm): Use can_vec_perm_const_p
11788         to test whether the constant selector is valid and can_vec_perm_var_p
11789         to test whether a variable selector is valid.
11790
11791 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11792
11793         * optabs-query.h (can_vec_perm_p): Take a const vec_perm_indices *.
11794         * optabs-query.c (can_vec_perm_p): Likewise.
11795         * fold-const.c (fold_vec_perm): Take a const vec_perm_indices &
11796         instead of vec_perm_indices.
11797         * tree-vectorizer.h (vect_gen_perm_mask_any): Likewise,
11798         (vect_gen_perm_mask_checked): Likewise,
11799         * tree-vect-stmts.c (vect_gen_perm_mask_any): Likewise,
11800         (vect_gen_perm_mask_checked): Likewise,
11801
11802 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11803
11804         * optabs-query.h (qimode_for_vec_perm): Declare.
11805         * optabs-query.c (can_vec_perm_p): Split out qimode search to...
11806         (qimode_for_vec_perm): ...this new function.
11807         * optabs.c (expand_vec_perm): Use qimode_for_vec_perm.
11808
11809 2018-01-02  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
11810
11811         * rtlanal.c (canonicalize_condition): Return 0 if final rtx
11812         does not have a conditional at the top.
11813
11814 2018-01-02  Richard Biener  <rguenther@suse.de>
11815
11816         * ipa-inline.c (big_speedup_p): Fix expression.
11817
11818 2018-01-02  Jan Hubicka  <hubicka@ucw.cz>
11819
11820         PR target/81616
11821         * config/i386/x86-tune-costs.h: Increase cost of integer load costs
11822         for generic 4->6.
11823
11824 2018-01-02  Jan Hubicka  <hubicka@ucw.cz>
11825
11826         PR target/81616
11827         Generic tuning.
11828         * x86-tune-costs.h (generic_cost): Reduce cost of FDIV 20->17,
11829         cost of sqrt 20->14, DIVSS 18->13, DIVSD 32->17, SQRtSS 30->14
11830         and SQRTsD 58->18, cond_not_taken_branch_cost. 2->1. Increase
11831         cond_taken_branch_cost 3->4.
11832
11833 2018-01-01  Jakub Jelinek  <jakub@redhat.com>
11834
11835         PR tree-optimization/83581
11836         * tree-loop-distribution.c (pass_loop_distribution::execute): Return
11837         TODO_cleanup_cfg if any changes have been made.
11838
11839         PR middle-end/83608
11840         * expr.c (store_expr_with_bounds): Use simplify_gen_subreg instead of
11841         convert_modes if target mode has the right side, but different mode
11842         class.
11843
11844         PR middle-end/83609
11845         * expr.c (expand_assignment): Fix up a typo in simplify_gen_subreg
11846         last argument when extracting from CONCAT.  If either from_real or
11847         from_imag is NULL, use expansion through memory.  If result is not
11848         a CONCAT and simplify_gen_subreg fails, try to simplify_gen_subreg
11849         the parts directly to inner mode, if even that fails, use expansion
11850         through memory.
11851
11852         PR middle-end/83623
11853         * expmed.c (expand_shift_1): For 2-byte rotates by BITS_PER_UNIT,
11854         check for bswap in mode rather than HImode and use that in expand_unop
11855         too.
11856 \f
11857 Copyright (C) 2018 Free Software Foundation, Inc.
11858
11859 Copying and distribution of this file, with or without modification,
11860 are permitted in any medium without royalty provided the copyright
11861 notice and this notice are preserved.