gcc/ChangeLog

   1 2018-05-03  Jakub Jelinek  <jakub@redhat.com>
   2
   3         PR target/85530
   4         * config/i386/avx512fintrin.h (_mm512_mullox_epi64,
   5         _mm512_mask_mullox_epi64): New intrinsics.
   6
   7 2018-05-03  Tom de Vries  <tom@codesourcery.com>
   8
   9         PR testsuite/85106
  10         * doc/sourcebuild.texi (Commands for use in dg-final, Scan optimization
  11         dump files): Add offload-tree.
  12
  13 2018-05-03  Richard Biener  <rguenther@suse.de>
  14
  15         PR tree-optimization/85615
  16         * tree-ssa-threadupdate.c (thread_block_1): Only allow exits
  17         to loops not nested in BBs loop father to avoid creating multi-entry
  18         loops.
  19
  20 2018-05-03  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
  21
  22         PR tree-optimization/70291
  23         * tree-complex.c (expand_complex_libcall): Add type, inplace_p
  24         arguments.  Change return type to tree.  Emit libcall as a new
  25         statement rather than replacing existing one when inplace_p is true.
  26         (expand_complex_multiplication_components): New function.
  27         (expand_complex_multiplication): Expand floating-point complex
  28         multiplication using the above.
  29         (expand_complex_division): Rename inner_type parameter to type.
  30         Update expand_complex_libcall call-site.
  31         (expand_complex_operations_1): Update expand_complex_multiplication
  32         and expand_complex_division call-sites.
  33
  34 2018-05-02  Jakub Jelinek  <jakub@redhat.com>
  35
  36         PR target/85582
  37         * config/i386/i386.md (*ashl<dwi>3_doubleword_mask,
  38         *ashl<dwi>3_doubleword_mask_1, *<shift_insn><dwi>3_doubleword_mask,
  39         *<shift_insn><dwi>3_doubleword_mask_1): In condition require that
  40         the highest significant bit of the shift count mask is clear.  In
  41         check whether and[sq]i3 is needed verify that all significant bits
  42         of the shift count other than the highest are set.
  43
  44 2018-05-02  Tom de Vries  <tom@codesourcery.com>
  45
  46         PR libgomp/82428
  47         * builtins.def (DEF_GOACC_BUILTIN_ONLY): Define.
  48         * omp-builtins.def (BUILT_IN_GOACC_PARLEVEL_ID)
  49         (BUILT_IN_GOACC_PARLEVEL_SIZE): New builtin.
  50         * builtins.c (expand_builtin_goacc_parlevel_id_size): New function.
  51         (expand_builtin): Call expand_builtin_goacc_parlevel_id_size.
  52         * doc/extend.texi (Other Builtins): Add __builtin_goacc_parlevel_id and
  53         __builtin_goacc_parlevel_size.
  54
  55 2018-05-02  Richard Biener  <rguenther@suse.de>
  56
  57         PR tree-optimization/85597
  58         * tree-vect-stmts.c (vectorizable_operation): For ternary SLP
  59         do not use split vect_get_vec_defs call but call vect_get_slp_defs
  60         directly.
  61
  62 2018-05-02  Tom de Vries  <tom@codesourcery.com>
  63
  64         PR testsuite/85106
  65         * doc/sourcebuild.texi (Commands for use in dg-final, Scan optimization
  66         dump files): Add ltrans-tree.
  67
  68 2018-05-02  Tom de Vries  <tom@codesourcery.com>
  69
  70         PR testsuite/85106
  71         * doc/sourcebuild.texi (Commands for use in dg-final, Scan optimization
  72         dump files): Add wpa-ipa.
  73
  74 2018-05-02  Segher Boessenkool  <segher@kernel.crashing.org>
  75
  76         * config.gcc (powerpc*-*-*): Remove paired.h.  Unsupport the
  77         powerpc*-*-linux*paired* target.
  78         * config/rs6000/750cl.h: Delete.
  79         * config/rs6000/paired.h: Delete.
  80         * config/rs6000/paired.md: Delete.
  81         * config/rs6000/predicates.md (easy_vector_constant): Remove paired
  82         float support.
  83         * config/rs6000/rs6000-builtin.def: Remove paired float support.
  84         * config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Update
  85         comment.  Remove paired float support.
  86         * config/rs6000/rs6000-modes.def: Remove V2SF and V2SI.
  87         * config/rs6000/rs6000-opts.h (enum rs6000_vector): Delete
  88         VECTOR_PAIRED.
  89         * config/rs6000/rs6000-protos.h (paired_expand_vector_init,
  90         paired_emit_vector_cond_expr, paired_expand_vector_move): Delete
  91         declarations.
  92         * config/rs6000/rs6000.c: Remove paired float support.
  93         (paired_expand_vector_init, paired_expand_vector_move,
  94         paired_emit_vector_compare, paired_emit_vector_cond_expr,
  95         (paired_expand_lv_builtin, paired_expand_stv_builtin,
  96         paired_expand_builtin, paired_expand_predicate_builtin,
  97         paired_init_builtins): Delete.
  98         * config/rs6000/rs6000.h: Remove paired float support.
  99         * config/rs6000/rs6000.md: Remove paired float support.
 100         (move_from_CR_ov_bit): Delete.
 101         * config/rs6000/rs6000.opt (mpaired): Delete.
 102         * config/rs6000/t-rs6000: Remove paired.md from MD_INCLUDES.
 103         * doc/invoke.texi (RS/6000 and PowerPC Options): Delete -mpaired.
 104
 105 2018-05-02  Richard Biener  <rguenther@suse.de>
 106
 107         PR middle-end/85567
 108         * gimplify.c (gimplify_save_expr): When in SSA form allow
 109         SAVE_EXPRs to compute to SSA vars.
 110
 111 2018-05-02  Jakub Jelinek  <jakub@redhat.com>
 112
 113         PR target/85582
 114         * config/i386/i386.md (*ashl<dwi>3_doubleword_mask,
 115         *ashl<dwi>3_doubleword_mask_1, *<shift_insn><dwi>3_doubleword_mask,
 116         *<shift_insn><dwi>3_doubleword_mask_1): If and[sq]i3 is needed, don't
 117         clobber operands[2], instead use a new pseudo.  Formatting fixes.
 118
 119 2018-05-02  Richard Sandiford  <richard.sandiford@linaro.org>
 120
 121         PR tree-optimization/85586
 122         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence): Only
 123         exit early for statements in the same group if the accesses are
 124         not strided.
 125
 126 2018-05-02  Tom de Vries  <tom@codesourcery.com>
 127
 128         PR lto/85451
 129         * lto-wrapper.c (compile_offload_image): Add "could not find mkoffload"
 130         error message.
 131
 132 2018-05-01  Marc Glisse  <marc.glisse@inria.fr>
 133
 134         PR tree-optimization/85143
 135         * match.pd (A<B&A<C): Extend to BIT_IOR_EXPR.
 136
 137 2018-05-01  Tom de Vries  <tom@codesourcery.com>
 138
 139         PR lto/85451
 140         * config/nvptx/mkoffload.c (main): Suggest using -B in "offload compiler
 141         not found" error message.
 142
 143 2018-05-01  Tom de Vries  <tom@codesourcery.com>
 144
 145         PR other/83786
 146         * vec.h (VEC_ORDERED_REMOVE_IF, VEC_ORDERED_REMOVE_IF_FROM_TO): Define.
 147         * vec.c (test_ordered_remove_if): New function.
 148         (vec_c_tests): Call test_ordered_remove_if.
 149         * dwarf2cfi.c (connect_traces): Use VEC_ORDERED_REMOVE_IF_FROM_TO.
 150         * lto-streamer-out.c (prune_offload_funcs): Use VEC_ORDERED_REMOVE_IF.
 151         * tree-vect-patterns.c (vect_pattern_recog_1): Use
 152         VEC_ORDERED_REMOVE_IF.
 153
 154 2018-05-01  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
 155
 156         PR tree-optimization/82665
 157         * vr-values.c (vr_values::extract_range_from_binary_expr): Handle
 158         pointer subtraction where arguments come from a memchr call.
 159
 160 2018-05-01  Jakub Jelinek  <jakub@redhat.com>
 161
 162         * configure.ac (LD_AS_NEEDED_OPTION, LD_NO_AS_NEEDED_OPTION): Use
 163         --push-state --as-needed and --pop-state instead of --as-needed and
 164         --no-as-needed if ld supports it.
 165         * configure: Regenerated.
 166
 167         PR web/85578
 168         * doc/install.texi2html: Replace _002d with - and _002a with * in
 169         generated html files using sed.
 170
 171 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
 172
 173         PR c++/85523
 174         * gcc-rich-location.c (blank_line_before_p): New function.
 175         (use_new_line): New function.
 176         (gcc_rich_location::add_fixit_insert_formatted): New function.
 177         * gcc-rich-location.h
 178         (gcc_rich_location::add_fixit_insert_formatted): New function.
 179
 180 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
 181
 182         * selftest.c (assert_streq): Rename "expected" and "actual" to
 183         "val1" and "val2".  Extend NULL-handling to cover both inputs
 184         symmetrically, while still requiring both to be non-NULL for a pass.
 185         * selftest.h (assert_streq): Rename "expected" and "actual" to
 186         "val1" and "val2".
 187         (ASSERT_EQ): Likewise.
 188         (ASSERT_EQ_AT): Likewise.
 189         (ASSERT_KNOWN_EQ): Likewise.
 190         (ASSERT_KNOWN_EQ_AT): Likewise.
 191         (ASSERT_NE): Likewise.
 192         (ASSERT_MAYBE_NE): Likewise.
 193         (ASSERT_MAYBE_NE_AT): Likewise.
 194         (ASSERT_STREQ): Likewise.  Clarify that both must be non-NULL for
 195         the assertion to pass.
 196         (ASSERT_STREQ_AT): Likewise.
 197
 198 2018-04-30  Jonathan Wakely  <jwakely@redhat.com>
 199
 200         * doc/invoke.texi (-fpie, -fPIE): Fix grammar and clarify
 201         interaction with -pie.
 202
 203 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
 204
 205         * selftest.h: Fix alphabetization of per-source-file selftest
 206         declarations.
 207
 208 2018-04-30  Jason Merrill  <jason@redhat.com>
 209
 210         PR c++/61982 - dead stores to destroyed objects.
 211         * gimplify.c (gimplify_modify_expr): Simplify complex lvalue on LHS
 212         of clobber.
 213
 214 2018-04-30  Jason Merrill  <jason@redhat.com>
 215
 216         * tree.c (build_clobber): New.
 217         * tree.h: Declare it.
 218         * gimplify.c (gimplify_bind_expr, gimplify_target_expr): Use it.
 219
 220 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
 221
 222         * diagnostic-show-locus.c (layout::layout): Update for
 223         location_get_source_line returning a char_span.
 224         (struct char_span): Move to input.h.
 225         (struct correction): Update for fields in char_span becoming
 226         private.
 227         (struct source_line): Update for location_get_source_line
 228         returning a char_span.
 229         (layout::print_line): Likewise.
 230         * edit-context.c (edited_file::print_content): Likewise.
 231         (edited_file::print_diff_hunk): Likewise.
 232         (edited_file::print_run_of_changed_lines): Likewise.
 233         (edited_file::get_num_lines): Likewise.
 234         (edited_line::edited_line): Likewise.
 235         * final.c (asm_show_source): Likewise.
 236         * input.c (location_get_source_line): Convert return type
 237         from const char * to char_span, losing the final "line_len"
 238         param.
 239         (dump_location_info): Update for the above.
 240         (get_substring_ranges_for_loc): Likewise.  Use a char_span
 241         when handling the literal within the line.
 242         (test_reading_source_line): Update for location_get_source_line
 243         returning a char_span.
 244         * input.h (class char_span): Move here from
 245         diagnostic-show-locus.c, converting from a struct to a class.
 246         Make data members private.
 247         (char_span::operator bool): New.
 248         (char_span::length): New.
 249         (char_span::get_buffer): New.
 250         (char_span::operator[]): New.
 251         (char_span::subspan): Make const.
 252         (char_span::xstrdup): New.
 253         (location_get_source_line): Convert return type from const char *
 254         to char_span, losing the final "line_size" param.
 255
 256 2018-04-30  Jan Hubicka  <jh@suse.cz>
 257
 258         * lto-wrapper.c (ltrans_priorities): New static var.
 259         (cmp_priority): New.
 260         (run_gcc): Read priorities and if doing parallel build order
 261         the Makefile by them.
 262
 263 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
 264
 265         * input.h (builtins_location_check): Convert to a STATIC_ASSERT.
 266
 267 2018-04-30  Richard Biener  <rguenther@suse.de>
 268
 269         * tree-cfg.c (verify_address): Remove base argument, add
 270         flag whether to check TREE_ADDRESSABLE and do that.
 271         (verify_expr): Remove.
 272         (verify_types_in_gimple_reference): Add pieces from verify_expr.
 273         (verify_gimple_assign_single): Likewise.
 274         (verify_gimple_switch): Likewise.
 275         (verify_expr_location_1): Dereference tp once.  Add (disabled)
 276         piece from verify_expr.
 277         (verify_gimple_in_cfg): Do not call verify_expr on all ops.
 278
 279 2018-04-30  Claudiu Zissulescu  <claziss@synopsys.com>
 280
 281         * config/arc/linux.h (CLEAR_INSN_CACHE): Define.
 282
 283 2018-04-30  Claudiu Zissulescu  <claziss@synopsys.com>
 284
 285         * config/arc/arc-protos.h (prepare_extend_operands): Remove.
 286         (small_data_pattern): Likewise.
 287         (arc_rewrite_small_data): Likewise.
 288         * config/arc/arc.c (LEGITIMATE_SMALL_DATA_OFFSET_P): Remove.
 289         (LEGITIMATE_SMALL_DATA_ADDRESS_P): Likewise.
 290         (get_symbol_alignment): New function.
 291         (legitimate_small_data_address_p): Likewise.
 292         (legitimate_scaled_address): Update, call
 293         legitimate_small_data_address_p.
 294         (output_sdata): New static variable.
 295         (arc_print_operand): Update how we handle small data operands.
 296         (arc_print_operand_address): Likewise.
 297         (arc_legitimate_address_p): Update, use
 298         legitimate_small_data_address_p.
 299         (arc_rewrite_small_data_p): Remove.
 300         (arc_rewrite_small_data_1): Likewise.
 301         (arc_rewrite_small_data): Likewise.
 302         (small_data_pattern): Likewise.
 303         (compact_sda_memory_operand): Update to use
 304         legitimate_small_data_address_p and get_symbol_alignment.
 305         (prepare_move_operands): Don't rewite sdata pattern.
 306         (prepare_extend_operands): Remove.
 307         * config/arc/arc.md (zero_extendqihi2): Don't rewrite sdata
 308         pattern.
 309         (zero_extendqisi2): Likewise.
 310         (zero_extendhisi2): Likewise.
 311         (extendqihi2): Likewise.
 312         (extendqisi2): Likewise.
 313         (extendhisi2): Likewise.
 314         (addsi3): Likewise.
 315         (subsi3): Likewise.
 316         (andsi3): Likewise.
 317         * config/arc/constraints.md (Usd): Change it to memory constraint.
 318
 319 2018-04-30  Claudiu Zissulescu  <claziss@synopsys.com>
 320
 321         * config/arc/arc.c (arc_split_move): Allow signed 6-bit constants
 322         as source of std instructions.
 323         * config/arc/arc.md (movsi_insn): Update pattern predicate to
 324         allow 6-bit constants as source for store instructions.
 325         (movdi_insn): Update instruction pattern to allow 6-bit constants
 326         as source for store instructions.
 327
 328 2018-04-30  Jonathan Wakely  <jwakely@redhat.com>
 329
 330         * doc/invoke.texi (-fdebug-types-section): Fix grammar.
 331
 332 2018-04-30  Nathan Sidwell  <nathan@acm.org>
 333             Sandra Loosemore <sandra@codesourcery.com>
 334
 335         * dumpfile.c (dump_open): Allow '-' for stdout.
 336         * doc/invoke.texi (Developer Options): Document dump filename
 337         determination early.  Document stdin/stdout selection.
 338
 339 2018-04-30 Andrew Sadek  <andrew.sadek.se@gmail.com>
 340
 341         Microblaze Target: PIC data text relative
 342
 343         * config/microblaze/microblaze.opt: add new option -mpic-data-text-rel.
 344         * config/microblaze/microblaze-protos.h (microblaze_constant_address_p):
 345         Add declaration.
 346         * gcc/config/microblaze/microblaze.h (microblaze_constant_address_p):
 347         CONSTANT_ADDRESS_P definition to microblaze_constant_address_p.
 348         * config/microblaze/microblaze.c (TARGET_PIC_DATA_TEXT_REL):
 349         New addressing mode for data-text relative position indepenedent code.
 350         (microblaze_classify_unspec): add 'UNSPEC_TEXT' case ->
 351         'ADDRESS_SYMBOLIC_TXT_REL'.
 352         (microblaze_classify_address): Add handling for UNSPEC + CONST_INT.
 353         (microblaze_legitimate_pic_operand): Exclude function calls from
 354         pic operands in case of TARGET_PIC_DATA_TEXT_REL option.
 355         (microblaze_legitimize_address): Generate 'UNSPEC_TEXT' for all possible
 356         addresses cases.
 357         (microblaze_address_insns): Add 'ADDRESS_SYMBOLIC_TXT_REL' case.
 358         (print_operand): Add 'ADDRESS_SYMBOLIC_TXT_REL' case.
 359         (print_operand_address): Add 'ADDRESS_SYMBOLIC_TXT_REL' case + handling
 360         for 'address + offset'.
 361         (microblaze_expand_prologue): Add new function prologue call for
 362         'r20' assignation.
 363         (microblaze_asm_generate_pic_addr_dif_vec): Override new target hook
 364         'TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC' to disable address diff vector
 365         table in case of TARGET_PIC_DATA_TEXT_REL.
 366         (expand_pic_symbol_ref): Add handling for 'UNSPEC_TEXT'.
 367         * gcc/config/microblaze/microblaze.md (TARGET_PIC_DATA_TEXT_REL):
 368         Add new macros 'UNSPEC_TEXT',
 369         'UNSPEC_SET_TEXT' + add rule for setting r20 in function prologue
 370         + exclude function calls from 'UNSPEC_PLT' in case of data text
 371         relative mode.
 372         * doc/tm.texi.in (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC): Add
 373         new target hook for generating address diff vector tables in case of
 374         flag_pic.
 375         * doc/tm.texi : Regenerate.
 376         * stmt.c (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC): Append new condition
 377         'targetm.asm_out.generate_pic_addr_diff_vec' to flag_pic in case
 378         of addr diff vector generation.
 379         * target.def (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC): Add
 380         target hook definition.
 381         * targhooks.h, gcc/targhooks.c (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC):
 382         Add default function for generate_pic_addr_diff_vec -> flag_pic.
 383         * doc/invoke.texi (Add new pic option): Add new microblaze pic
 384         option for data text relative.
 385
 386 2018-04-30  Richard Biener  <rguenther@suse.de>
 387
 388         * tree-chrec.h (evolution_function_is_constant_p): Remove
 389         redundant check.
 390         * tree-cfg.c (tree_node_can_be_shared): Re-order checks.
 391
 392 2018-04-30  Richard Biener  <rguenther@suse.de>
 393
 394         PR bootstrap/85571
 395         * dwarf2out.c (gen_producer_string): Ignore -fchecking[=].
 396
 397 2018-04-30  Richard Biener  <rguenther@suse.de>
 398
 399         PR tree-optimization/28364
 400         PR tree-optimization/85275
 401         * tree-ssa-loop-ch.c (ch_base::copy_headers): Stop after
 402         copying first exit test.
 403
 404 2018-04-28  Mark Wielaard  <mark@klomp.org>
 405
 406         * dwarf2out.c (dwarf2out_finish): Add .debug_addr table header for
 407         dwarf_version >= 5.
 408         (dwarf_AT): Handle DW_AT_addr_base.
 409         (add_top_level_skeleton_die_attrs): Use dwarf_AT for DW_AT_addr_base.
 410
 411 2018-04-28  Uros Bizjak  <ubizjak@gmail.com>
 412
 413         PR target/84431
 414         * config/i386/i386.md (*ashl<dwi>3_doubleword_mask): New pattern.
 415         (*ashl<dwi>3_doubleword_mask_1): Ditto.
 416         (*<shift_insn><dwi>3_doubleword_mask): Ditto.
 417         (*<shift_insn><dwi>3_doubleword_mask_1): Ditto.
 418
 419 2018-04-28  Richard Biener  <rguenther@suse.de>
 420
 421         * tree-cfg.c (verify_gimple_phi): Take a gphi * argument.
 422         (verify_gimple_in_cfg): Rename visited_stmts to visited_throwing_stmts
 423         to reflect use.  Only add interesting stmts.
 424
 425 2018-04-27  Martin Jambor  <mjambor@suse.cz>
 426
 427         PR ipa/85549
 428         * ipa-cp.c (find_aggregate_values_for_callers_subset): Make sure
 429         the jump function allows for passing through aggregate values.
 430
 431 2018-04-27  David Malcolm  <dmalcolm@redhat.com>
 432
 433         * input.h (in_system_header_at): Convert from macro to inline
 434         function.
 435         (from_macro_expansion_at): Likewise.
 436         (from_macro_definition_at): Likewise.
 437
 438 2018-04-27  Jeff Law  <law@redhat.com>
 439
 440         * config.gcc: Mark tile* targets as deprecated/obsolete.
 441
 442 2018-04-27  Richard Biener  <rguenther@suse.de>
 443
 444         * config/aarch64/aarch64.c: Simplify ap.__stack advance and
 445         fix for ILP32.
 446
 447 2018-04-27  Richard Biener  <rguenther@suse.de>
 448
 449         * tree-cfg.c (verify_expr): Make dead code hit gcc_unreachable.
 450
 451 2018-04-27  Uros Bizjak  <ubizjak@gmail.com>
 452
 453         * config/i386/i386.md (*movti_internal): Substitute Ye constraint
 454         with Yd constraint. Set "preferred_for_speed" attribute from
 455         TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC for alternatives
 456         with Yd constraint.
 457         (*movdi_internal): Ditto.
 458         (movti_interunit splitters): Remove
 459         TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC from insn condition.
 460         (movdi_interunit splitters): Ditto.
 461         * config/i386/constraints.md (Ye): Remove.
 462         (Yd): Do not depend on TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC.
 463
 464 2018-04-27  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 465
 466         PR target/85512
 467         * config/aarch64/constraints.md (Usg): Limit to 31.
 468         (Usj): Limit to 63.
 469
 470 2018-04-27  Jakub Jelinek  <jakub@redhat.com>
 471
 472         PR tree-optimization/85529
 473         * tree-ssa-reassoc.c (optimize_range_tests_var_bound): Add FIRST_BB
 474         argument.  Don't call get_nonzero_bits if opcode is ERROR_MARK_NODE,
 475         rhs2 def stmt's bb is dominated by first_bb and it isn't an obvious
 476         zero extension or masking of the MSB bit.
 477         (optimize_range_tests): Add FIRST_BB argument, pass it through
 478         to optimize_range_tests_var_bound.
 479         (maybe_optimize_range_tests, reassociate_bb): Adjust
 480         optimize_range_tests callers.
 481
 482 2018-04-26  Richard Biener  <rguenther@suse.de>
 483             Jakub Jelinek  <jakub@redhat.com>
 484
 485         * cgraph.h (symbol_table): Just declare debug method here.
 486         * symtab.c (symbol_table::debug): Define.
 487
 488 2018-04-26  Eric Botcazou  <ebotcazou@adacore.com>
 489
 490         * loop-invariant.c (may_assign_reg_p): Return false for frame pointer.
 491
 492 2018-04-26  Uros Bizjak  <ubizjak@gmail.com>
 493
 494         * config/i386/i386.md ("isa" attribute): Add x64_sse2.
 495         ("enabled" attribute): Handle x64_sse2 "isa" attribute.
 496         (*movdi_internal): Substitute Yi and Yj constraint with x
 497         and Ym and Yn constraint with y constraint.  Update "isa"
 498         attribute and set "preferred_for_speed" attribute from
 499         TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC for updated alternatives.
 500         (*movsi_internal): Ditto.
 501         (*movdf_internal): Ditto.
 502         (*movsf_internal): Ditto.
 503         (*zero_extendsidi2): Ditto.
 504         * config/i386/sse.md (vec_set<mode>_0): Ditto.
 505         (sse2_loadld): Ditto.
 506         (*vec_extract<ssevecmodelower>_0): Ditto.
 507         (*vec_extractv4si_0_zext_sse4): Ditto.
 508         (vec_concatv2di): Ditto.
 509         (*vec_dup<mode>): Ditto.
 510         * config/i386/mmx.md (*mov<mode>_internal): Ditto.
 511         * config/i386/constraints.md (Yi): Remove.
 512         (Yj): Remove.
 513         (Ym): Remove.
 514         (Yn): Remove.
 515
 516 2018-04-26  Nathan Sidwell  <nathan@acm.org>
 517
 518         * dumpfile.c (dump_open): New.
 519         (dump_open_alternate_stream, dump_start, dump_begin): Call it.
 520         (dump_finish): Detect stdio/stderr by value not name.
 521
 522 2018-04-26  Jonathan Wakely  <jwakely@redhat.com>
 523
 524         * doc/invoke.texi (-Wreturn-type): Document default status for C++.
 525
 526 2018-04-26  Tom de Vries  <tom@codesourcery.com>
 527
 528         PR target/84952
 529         * config/nvptx/nvptx.c (verify_neutering_jumps)
 530         (verify_neutering_labels): New function
 531         (nvptx_single): Use verify_neutering_jumps and verify_neutering_labels.
 532
 533 2018-04-26  Tom de Vries  <tom@codesourcery.com>
 534
 535         PR target/84025
 536         * config/nvptx/nvptx.c (needs_neutering_p): New function.
 537         (nvptx_single): Use needs_neutering_p to skip over insns that do not
 538         need neutering.
 539
 540 2018-04-26  Richard Biener <rguenther@suse.de>
 541             Tom de Vries  <tom@codesourcery.com>
 542
 543         PR lto/85422
 544         * lto-streamer-out.c (output_function): Fixup loops if required to match
 545         discovery done in the reader.
 546
 547 2018-04-26  Richard Biener  <rguenther@suse.de>
 548
 549         PR tree-optimization/85116
 550         * tree-ssa-loop-ch.c (do_while_loop_p): A do-while loop should
 551         have a loop exit from the single latch predecessor.  Remove
 552         case of header with just condition.
 553         (ch_base::copy_headers): Exclude infinite loops from any
 554         processing.
 555         (pass_ch::execute): Record exits.
 556
 557 2018-04-26  Richard Biener  <rguenther@suse.de>
 558
 559         * tree-vect-data-refs.c (vect_get_data_access_cost): Get
 560         prologue cost vector and pass it to vect_get_load_cost.
 561         (vect_get_peeling_costs_all_drs): Likewise.
 562         (vect_peeling_hash_get_lowest_cost): Likewise.
 563         (vect_enhance_data_refs_alignment): Likewise.
 564
 565 2018-04-26  Richard Biener  <rguenther@suse.de>
 566
 567         PR middle-end/85450
 568         * tree-cfg.c (verify_gimple_assign_unary): Restore proper
 569         checking of integer<->pointer conversions.
 570         * omp-expand.c (expand_omp_for_static_nochunk): Avoid
 571         sign-/zero-extending pointer types.
 572         (expand_omp_for_static_chunk): Likewise.
 573
 574 2018-03-22  Hans-Peter Nilsson  <hp@axis.com>
 575             Jean Lee  <xiaoyur347@gmail.com>
 576
 577         * config/mips/mips.c (mips_asan_shadow_offset): New function.
 578         (TARGET_ASAN_SHADOW_OFFSET): Define.
 579         * config/mips/mips.h (FRAME_GROWS_DOWNWARD): Augment to also be
 580         true for -fsanitize=address.
 581
 582 2018-04-25  Mark Wielaard  <mark@klomp.org>
 583
 584         * dwarf2out.c (file_info_cmp): Sort longer dir prefixes before
 585         shorter ones.
 586
 587 2018-04-25  Jakub Jelinek  <jakub@redhat.com>
 588
 589         * config/i386/i386.md (*x86_mov<mode>cc_0_m1): Use type "alu1" rather
 590         than "alu", remove explicit "memory" and "imm_disp" attributes.
 591         (*x86_mov<mode>cc_0_m1_se, *x86_mov<mode>cc_0_m1_neg): Likewise.
 592
 593         PR middle-end/85414
 594         * simplify-rtx.c (simplify_unary_operation_1) <case SIGN_EXTEND,
 595         case ZERO_EXTEND>: Pass SUBREG_REG (op) rather than op to
 596         gen_lowpart_no_emit.
 597
 598 2018-04-25  Sebastian Peryt  <sebastian.peryt@intel.com>
 599
 600         PR target/85473
 601         * config/i386/i386.c (ix86_expand_builtin): Change memory
 602         operand to XI, extend p0 to Pmode.
 603         * config/i386/i386.md: Change unspec volatile and operand
 604         1 mode to XI, change operand 0 mode to P.
 605
 606 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
 607
 608         * config/nds32/nds32-predicates.c (nds32_can_use_bclr_p): Mask with
 609         GET_MODE_MASK before any checking.
 610         (nds32_can_use_bset_p): Likewise.
 611         (nds32_can_use_btgl_p): Likewise.
 612
 613 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
 614
 615         * config/nds32/nds32-doubleword.md: New define_split pattern for
 616         illegal register number.
 617
 618 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
 619
 620         * config/nds32/nds32.c (nds32_print_operand): Set op_value ealier.
 621
 622 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
 623
 624         * config/nds32/nds32.h (ASM_APP_ON): Add missing newline character.
 625
 626 2018-04-25  Richard Biener  <rguenther@suse.de>
 627
 628         * lto-streamer.h (LTO_major_version): Bump to 8.
 629
 630 2018-04-25  Jakub Jelinek  <jakub@redhat.com>
 631
 632         * BASE-VER: Set to 9.0.0.
 633
 634 2018-04-24  Segher Boessenkool  <segher@kernel.crashing.org>
 635
 636         * config/rs6000/rs6000.c (init_float128_ieee): Fix spelling mistakes
 637         in __abskf2 and __powikf2.
 638
 639 2018-04-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 640
 641         PR target/85512
 642         * config/aarch64/constraints.md (Usg, Usj): New constraints.
 643         * config/aarch64/iterators.md (cmode_simd): New mode attribute.
 644         * config/aarch64/aarch64.md (*aarch64_ashr_sisd_or_int_<mode>3):
 645         Use the above on operand 2.  Reindent.
 646         (*aarch64_lshr_sisd_or_int_<mode>3): Likewise.
 647
 648 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
 649
 650         PR target/85485
 651         * common/config/i386/i386-common.c (ix86_handle_option): Don't
 652         handle OPT_mcet.
 653         * config/i386/i386.opt (mcet): Removed.
 654         * doc/install.texi: Remove -mcet documentation.
 655         * doc/invoke.texi: Likewise.
 656
 657 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
 658
 659         PR target/85485
 660         * doc/install.texi: Remove -mcet from bootstrap-cet.
 661
 662 2018-04-24  Jakub Jelinek  <jakub@redhat.com>
 663
 664         PR target/85511
 665         * config/i386/i386.c (ix86_init_mmx_sse_builtins): Don't define
 666         __builtin_ia32_readeflags_u32 and __builtin_ia32_writeeflags_u32
 667         if TARGET_64BIT.
 668
 669         PR target/85503
 670         * config/rs6000/rs6000-p8swap.c (const_load_sequence_p): Punt if
 671         const_vector is not CONST_VECTOR or SYMBOL_REF for a constant pool
 672         containing a CONST_VECTOR.
 673
 674 2018-04-24  Cesar Philippidis  <cesar@codesourcery.com>
 675
 676         * doc/install.texi: Update newlib dependency for nvptx.
 677
 678 2018-04-24  Jakub Jelinek  <jakub@redhat.com>
 679
 680         PR target/85508
 681         * config/i386/i386.c (ix86_expand_vector_init_one_var): Use UINTVAL
 682         instead of INTVAL when shifting x left.
 683
 684 2018-04-24  Andreas Krebbel  <krebbel@linux.ibm.com>
 685
 686         PR tree-optimization/85478
 687         * tree-vect-loop.c (vect_analyze_loop_2): Do not call
 688         vect_grouped_store_supported for single element vectors.
 689
 690 2018-04-24  Richard Biener  <rguenther@suse.de>
 691
 692         PR target/85491
 693         * config/i386/i386.c (ix86_add_stmt_cost): Restrict strided
 694         load cost increase to the case of non-constant step.
 695
 696 2018-04-24  Jakub Jelinek  <jakub@redhat.com>
 697
 698         PR target/84828
 699         * reg-stack.c (move_for_stack_reg): Don't fail assertion about dead
 700         destination if any_malformed_asm.
 701
 702 2018-04-23  Eric Botcazou  <ebotcazou@adacore.com>
 703
 704         PR middle-end/85496
 705         * expr.c (store_field): In the bitfield case, if the value comes from
 706         a function call and is returned in registers by means of a PARALLEL,
 707         do not change the mode of the temporary unless BLKmode and VOIDmode.
 708
 709 2018-04-23  Andrey Belevantsev  <abel@ispras.ru>
 710
 711         PR rtl-optimization/85423
 712         * sel-sched-ir.c (has_dependence_note_mem_dep): Only discard
 713         dependencies to debug insns when the previous insn is non-debug.
 714
 715 2018-04-23  Claudiu Zissulescu  <claziss@synopsys.com>
 716
 717         * config/arc/arc.md ("vunspec"): Delete it, unify all the unspec
 718         enums into a single definition.
 719         (fls): Fix predicates and printing.
 720         (seti): Likewise.
 721
 722 2018-04-23  Claudiu Zissulescu  <claziss@synopsys.com>
 723
 724         * config/arc/arc-protos.h (check_if_valid_sleep_operand): Remove.
 725         * config/arc/arc.c (arc_expand_builtin): Sleep accepts registers
 726         and short u6 immediate.
 727         (check_if_valid_sleep_operand): Remove.
 728         * config/arc/arc.md (Sleep): Accepts registers and u6 immediates.
 729
 730 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
 731
 732         * config/nds32/nds32.c (nds32_compute_stack_frame): Consider
 733         flag_always_save_lp condition.
 734         * config/nds32/nds32.opt (malways-save-lp): New option.
 735
 736 2018-04-22  Shiva Chen  <shiva0217@gmail.com>
 737
 738         * config/nds32/nds32-protos.h (nds32_use_load_post_increment): Declare.
 739         * config/nds32/nds32.c (nds32_use_load_post_increment): New.
 740         * config/nds32/nds32.h
 741         (USE_LOAD_POST_INCREMENT, USE_LOAD_POST_DECREMENT): Define.
 742         (USE_STORE_POST_INCREMENT, USE_STORE_POST_DECREMENT): Define.
 743
 744 2018-04-22  Shiva Chen  <shiva0217@gmail.com>
 745
 746         * config/nds32/nds32-protos.h (nds32_ls_333_p): Remove.
 747         * config/nds32/nds32.c (nds32_ls_333_p): Remove.
 748
 749 2018-04-22  Shiva Chen  <shiva0217@gmail.com>
 750             Chung-Ju Wu  <jasonwucj@gmail.com>
 751
 752         * config/nds32/nds32-protos.h (nds32_case_vector_shorten_mode):
 753         Declare.
 754         * config/nds32/nds32.c (nds32_case_vector_shorten_mode): New function.
 755         * config/nds32/nds32.h (CASE_VECTOR_SHORTEN_MODE): Modify.
 756
 757 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
 758
 759         * config/nds32/nds32.c (nds32_compute_stack_frame): Fix wrong value.
 760
 761 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
 762
 763         * config/nds32/nds32-protos.h (nds32_data_alignment,
 764         nds32_local_alignment): Declare.
 765         * config/nds32/nds32.c (nds32_data_alignment, nds32_constant_alignment,
 766         nds32_local_alignment): New functions.
 767         (TARGET_CONSTANT_ALIGNMENT): Define.
 768         * config/nds32/nds32.h (DATA_ALIGNMENT, LOCAL_ALIGNMENT): Define.
 769
 770 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
 771
 772         * config/nds32/nds32.c
 773         (TARGET_HARD_REGNO_MODE_OK): Move to the bottom of file.
 774         (TARGET_MODES_TIEABLE_P): Likewise.
 775
 776 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
 777
 778         * config/nds32/nds32.c (nds32_asm_file_start): Display optimization
 779         level Ofast and Og.
 780
 781 2018-04-22  Monk Chiang  <sh.chiang04@gmail.com>
 782             Chung-Ju Wu  <jasonwucj@gmail.com>
 783
 784         * config/nds32/constants.md (unspec_volatile_element): Add enum values
 785         for unaligned access.
 786         * config/nds32/nds32-intrinsic.c: Implementation of expanding
 787         unaligned access.
 788         * config/nds32/nds32-intrinsic.md: Likewise.
 789         * config/nds32/nds32_intrinsic.h: Likewise.
 790         * config/nds32/nds32.h (nds32_builtins): Likewise.
 791         * config/nds32/nds32.opt (munaligned-access): New option.
 792         * config/nds32/nds32.c (nds32_asm_file_start): Display
 793         flag_unaligned_access status.
 794
 795 2018-04-20  Kito Cheng  <kito.cheng@gmail.com>
 796
 797         * config/riscv/elf.h (LINK_SPEC): Pass --no-relax if
 798         -mno-relax is present.
 799         * config/riscv/linux.h (LINK_SPEC): Ditto.
 800
 801 2018-04-20  Martin Sebor  <msebor@redhat.com>
 802
 803         PR c/85365
 804         * gimple-fold.c (gimple_fold_builtin_strcpy): Suppress -Wrestrict
 805         for null pointers.
 806         (gimple_fold_builtin_stxcpy_chk): Same.
 807         * gimple-ssa-warn-restrict.c (check_bounds_or_overlap): Same.
 808
 809 2018-04-20  Michael Meissner  <meissner@linux.ibm.com>
 810
 811         PR target/85456
 812         * config/rs6000/rs6000.c (init_float128_ieee): Add support to call
 813         __powikf2 when long double is IEEE 128-bit.
 814
 815 2018-04-20  Kito Cheng  <kito.cheng@gmail.com>
 816
 817         * config/riscv/riscv.c (riscv_first_stack_step): Round up min
 818         step to make sure stack always aligned.
 819
 820 2018-04-20  Carl Love  <cel@us.ibm.com>
 821
 822         PR target/83402
 823         * config/rs6000/rs6000-c.c (rs6000_gimple_fold_builtin): Add
 824         size check for arg0.
 825
 826 2018-04-20  Nathan Sidwell  <nathan@codesourcery.com>
 827             Tom de Vries  <tom@codesourcery.com>
 828
 829         PR target/85445
 830         * config/nvptx/nvptx.c (nvptx_emit_forking, nvptx_emit_joining):
 831         Emit insns for calls too.
 832         (nvptx_find_par): Always look for worker-level predecessor insn.
 833         (nvptx_propagate): Add is_call parm, return bool.  Copy frame for
 834         calls.
 835         (nvptx_vpropagate, nvptx_wpropagate): Adjust.
 836         (nvptx_process_pars): Propagate frames for calls.
 837
 838 2018-04-20  H.J. Lu  <hongjiu.lu@intel.com>
 839
 840         PR target/85469
 841         * common/config/i386/i386-common.c (OPTION_MASK_ISA_IBT_SET):
 842         Removed.
 843         (OPTION_MASK_ISA_IBT_UNSET): Likewise.
 844         (ix86_handle_option): Don't handle OPT_mibt.
 845         * config/i386/cet.h: Check __CET__ instead of __IBT__ and
 846         __SHSTK__.
 847         * config/i386/driver-i386.c (host_detect_local_cpu): Remove
 848         has_ibt and ibt.
 849         * config/i386/i386-c.c (ix86_target_macros_internal): Don't
 850         check OPTION_MASK_ISA_IBT nor flag_cf_protection.
 851         (ix86_target_macros): Define __CET__ with flag_cf_protection
 852         for -fcf-protection.
 853         * config/i386/i386.c (isa2_opts): Remove -mibt.
 854         * config/i386/i386.h (TARGET_IBT): Removed.
 855         (TARGET_IBT_P): Likewise.
 856         (ix86_valid_target_attribute_inner_p): Don't check OPT_mibt.
 857         * config/i386/i386.md (nop_endbr): Don't check TARGET_IBT.
 858         * config/i386/i386.opt (mcet): Update help message.
 859         (mshstk): Likewise.
 860         (mibt): Removed.
 861         * doc/invoke.texi: Remove -mibt.  Document __CET__.  Document
 862         -mcet as an alias for -mshstk.
 863
 864 2018-04-20  Richard Biener <rguenther@suse.de>
 865
 866         PR middle-end/85475
 867         * match.pd ((X * CST) * Y -> (X * Y) * CST): Avoid exponential
 868         complexity by forcing a single use of the multiply operand.
 869
 870 2018-04-20  Martin Jambor  <mjambor@suse.cz>
 871
 872         ipa/85449
 873         * ipa-cp.c (cgraph_edge_brings_value_p): Move check for self-feeding
 874         recursion dependency to only apply to non-clones.
 875
 876 2018-04-20  Martin Jambor  <mjambor@suse.cz>
 877
 878         ipa/85447
 879         * ipa-cp.c (create_specialized_node): Check that clones of
 880         self-recursive edges exist during IPA-CP.
 881
 882 2018-04-19  Toon Moene  <toon@moene.org>
 883
 884         * doc/invoke.texi: Add -floop-unroll-and-jam to options enabled
 885         by -O3.
 886
 887 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
 888
 889         PR tree-optimization/85467
 890         * fold-const.c (fold_ternary_loc) <case BIT_FIELD_REF>: Use
 891         VECTOR_TYPE_P macro.  If type is vector type, VIEW_CONVERT_EXPR the
 892         VECTOR_CST element to type.
 893
 894 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
 895
 896         PR target/85397
 897         * config/i386/i386.h (STACK_SAVEAREA_MODE): New.
 898         * config/i386/i386.md (builtin_setjmp_setup): Removed.
 899         (builtin_longjmp): Likewise.
 900         (save_stack_nonlocal): New pattern.
 901         (restore_stack_nonlocal): Likewise.
 902
 903 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
 904
 905         PR target/85404
 906         * config/i386/cet.c (file_end_indicate_exec_stack_and_cet):
 907         Replace ASM_OUTPUT_LABEL with fprintf.
 908
 909 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
 910
 911         PR target/85417
 912         * config/i386/cet.c (file_end_indicate_exec_stack_and_cet):
 913         Check flag_cf_protection instead of TARGET_IBT and TARGET_SHSTK.
 914         * config/i386/i386-c.c (ix86_target_macros_internal): Also
 915         define __IBT__ and __SHSTK__ for -fcf-protection.
 916         * config/i386/i386.c (pass_insert_endbranch::gate): Don't check
 917         TARGET_IBT.
 918         (ix86_trampoline_init): Likewise.
 919         (x86_output_mi_thunk): Likewise.
 920         (ix86_notrack_prefixed_insn_p): Likewise.
 921         (ix86_option_override_internal): Don't disallow -fcf-protection.
 922         * config/i386/i386.md (rdssp<mode>): Also enable for
 923         -fcf-protection.
 924         (incssp<mode>): Likewise.
 925         (nop_endbr): Likewise.
 926         * config/i386/i386.opt (mcet): Change help message to built-in
 927         functions only.
 928         (mibt): Likewise.
 929         (mshstk): Likewise.
 930         * doc/invoke.texi: Remove -mcet, -mibt and -mshstk condition
 931         on -fcf-protection.  Change -mcet, -mibt and -mshstk to only
 932         enable CET built-in functions.
 933
 934 2018-04-19  Sebastian Peryt  <sebastian.peryt@intel.com>
 935
 936         * common/config/i386/i386-common.c
 937         (OPTION_MASK_ISA_MOVDIRI_SET, OPTION_MASK_ISA_MOVDIR64B_SET,
 938         OPTION_MASK_ISA_MOVDIRI_UNSET,
 939         OPTION_MASK_ISA_MOVDIR64B_UNSET): New defines.
 940         (ix86_handle_option): Handle -mmovdiri and -mmovdir64b.
 941         * config.gcc (movdirintrin.h): New header.
 942         * config/i386/cpuid.h (bit_MOVDIRI,
 943         bit_MOVDIR64B): New bits.
 944         * config/i386/driver-i386.c (host_detect_local_cpu): Detect -mmovdiri
 945         and -mmvodir64b.
 946         * config/i386/i386-builtin-types.def ((VOID, PUNSIGNED, UNSIGNED),
 947         (VOID, PVOID, PCVOID)): New function types.
 948         * config/i386/i386-builtin.def (__builtin_ia32_directstoreu_u32,
 949         __builtin_ia32_directstoreu_u64,
 950          __builtin_ia32_movdir64b): New builtins.
 951         * config/i386/i386-c.c (__MOVDIRI__, __MOVDIR64B__): New.
 952         * config/i386/i386.c (ix86_target_string): Added -mmovdir64b
 953         and -mmovdiri.
 954         (ix86_valid_target_attribute_inner_p): Ditto.
 955         (ix86_expand_special_args_builtin): Added VOID_FTYPE_PUNSIGNED_UNSIGNED
 956         and VOID_FTYPE_PUNSIGNED_UNSIGNED.
 957         (ix86_expand_builtin): Expand IX86_BUILTIN_MOVDIR64B.
 958         * config/i386/i386.h (TARGET_MOVDIRI, TARGET_MOVDIRI_P,
 959         TARGET_MOVDIR64B, TARGET_MOVDIR64B_P): New.
 960         * config/i386/i386.md (UNSPECV_MOVDIRI, UNSPECV_MOVDIR64B): New.
 961         (movdiri<mode>, movdir64b_<mode>): New.
 962         * config/i386/i386.opt: Add -mmovdiri and -mmovdir64b.
 963         * config/i386/immintrin.h: Include movdirintrin.h.
 964         * config/i386/movdirintrin.h: New file.
 965         * doc/invoke.texi: Added -mmovdiri and -mmovdir64b.
 966
 967 2018-04-19  Richard Biener  <rguenther@suse.de>
 968
 969         PR middle-end/85455
 970         * cfg.c (clear_bb_flags): When loop state says we have
 971         marked irreducible regions also preserve BB_IRREDUCIBLE_LOOP.
 972
 973 2018-04-19  Richard Biener  <rguenther@suse.de>
 974
 975         PR tree-optimization/84737
 976         * tree-vect-data-refs.c (vect_copy_ref_info): New function
 977         copying restrict info.
 978         (vect_setup_realignment): Use it.
 979         * tree-vectorizer.h (vect_copy_ref_info): Declare.
 980         * tree-vect-stmts.c (vectorizable_store): Copy ref info from
 981         the first DR to all generated stores.
 982         (vectorizable_load): Likewise for loads.
 983
 984 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
 985
 986         PR tree-optimization/85446
 987         * match.pd ((intptr_t) x eq/ne CST to x eq/ne (typeof x) cst): Require
 988         the integral and pointer types to have the same precision.
 989
 990         * doc/install.texi: Document --disable-cet being the default and
 991         --enable-cet=auto.
 992
 993 2018-04-18  Martin Liska  <mliska@suse.cz>
 994
 995         * ipa-devirt.c (odr_subtypes_equivalent_p): Fix GNU coding
 996         style.
 997
 998 2018-04-18  Martin Liska  <mliska@suse.cz>
 999
1000         Revert
1001         2018-03-02  Eric Botcazou  <ebotcazou@adacore.com>
1002
1003         PR ipa/83983
1004         * ipa-devirt.c (odr_subtypes_equivalent_p): Get the ODR type of both
1005         arguments if they are comparable.
1006
1007 2018-04-18  Martin Liska  <mliska@suse.cz>
1008
1009         Revert
1010         2018-03-13  Eric Botcazou  <ebotcazou@adacore.com>
1011
1012         PR lto/84805
1013         * ipa-devirt.c (odr_subtypes_equivalent_p): Do not get the ODR type of
1014         incomplete types.
1015
1016 2018-04-18  H.J. Lu  <hongjiu.lu@intel.com>
1017
1018         PR target/85388
1019         * config/i386/i386.c (ix86_expand_split_stack_prologue): Insert
1020         ENDBR after calling __morestack.
1021
1022 2018-04-18  David Malcolm  <dmalcolm@redhat.com>
1023
1024         PR jit/85384
1025         * configure.ac (gcc-driver-name.h): Honor --with-gcc-major-version
1026         by using gcc_base_ver to generate a gcc_driver_version, and use
1027         it when generating GCC_DRIVER_NAME.
1028         * configure: Regenerate.
1029
1030 2018-04-18  Jakub Jelinek  <jakub@redhat.com>
1031
1032         PR target/81084
1033         * config.gcc: Obsolete powerpc*-*-*spe*.
1034
1035 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
1036
1037         PR debug/84637
1038         * dbxout.c (dbxout_int): Perform negation in unsigned int type.
1039         (stabstr_D): Change type of unum from unsigned int to
1040         unsigned HOST_WIDE_INT.  Perform negation in unsigned HOST_WIDE_INT
1041         type.
1042
1043 2018-04-17  Jim Wilson  <jimw@sifive.com>
1044
1045         PR 84856
1046         * config/riscv/riscv.c (riscv_compute_frame_info): Add calls to
1047         RISCV_STACK_ALIGN when using outgoing_args_size and pretend_args_size.
1048         Set arg_pointer_offset after using pretend_args_size.
1049
1050 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
1051
1052         PR rtl-optimization/85431
1053         * dse.c (record_store): Ignore zero width stores.
1054
1055         PR sanitizer/85230
1056         * asan.c (handle_builtin_stack_restore): Adjust comment.  Emit
1057         __asan_allocas_unpoison call and last_alloca_addr = new_sp before
1058         __builtin_stack_restore rather than after it.
1059         * builtins.c (expand_asan_emit_allocas_unpoison): Pass
1060         arg1 + (virtual_dynamic_stack_rtx - stack_pointer_rtx) as second
1061         argument instead of virtual_dynamic_stack_rtx.
1062
1063 2018-04-17  Kelvin Nilsen  <kelvin@gcc.gnu.org>
1064
1065         * config/rs6000/rs6000-protos.h (rs6000_builtin_is_supported_p):
1066         New prototype.
1067         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
1068         Add note to error message to explain internal mapping of overloaded
1069         built-in function name to non-overloaded built-in function name.
1070         * config/rs6000/rs6000.c (rs6000_builtin_is_supported_p): New
1071         function.
1072
1073 2018-04-17  Michael Meissner  <meissner@linux.vnet.ibm.com>
1074
1075         PR target/85424
1076         * config/rs6000/rs6000.md (pack<mode>): Do not try handle a pack
1077         where the inputs overlap with the output.
1078
1079 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
1080
1081         * config/i386/sse.md (vec_extract_lo_<mode><mask_name>): Add
1082         (=v, v) alternative and explicit "memory" attribute.
1083         (vec_extract_lo_<mode><mask_name>): Likewise.  Also add
1084         "type", "prefix", "prefix_extra", "length_immediate" and "mode"
1085         attributes.
1086         (vec_extract_lo_<mode><mask_name>): Add (=v, v) alternative and use
1087         "sselog1" type instead of "sselog".
1088         (vec_extract_hi_<mode><mask_name>): Use "sselog1" type instead of
1089         "sselog".  Remove explicit "memory" attribute.
1090         (vec_extract_lo_v32hi): Add (=v, v) alternative and explicit "memory",
1091         "type", "prefix", "prefix_extra", "length_immediate" and "mode"
1092         attributes.
1093         (vec_extract_hi_v32hi): Merge all alternatives into one, use
1094         "sselog1" type instead of "sselog".  Remove explicit "memory"
1095         attribute.
1096         (vec_extract_hi_v16hi): Merge each pair of alternatives into one,
1097         use "sselog1" type instead of "sselog".  Remove explicit "memory"
1098         attribute.
1099         (vec_extract_lo_v64qi): Add (=v, v) alternative and explicit "memory",
1100         "type", "prefix", "prefix_extra", "length_immediate" and "mode"
1101         attributes.
1102         (vec_extract_hi_v64qi): Merge all alternatives into one, use
1103         "sselog1" type instead of "sselog".  Remove explicit "memory"
1104         attribute.
1105         (vec_extract_hi_v32qi): Merge each pair of alternatives into one,
1106         use "sselog1" type instead of "sselog".  Remove explicit "memory"
1107         attribute.
1108
1109         PR target/85430
1110         * config/i386/i386.md (*ashlqi3_1_slp): Use alu1 type instead of alu.
1111
1112         PR middle-end/85414
1113         * rtlhooks.c (gen_lowpart_if_possible): Don't call gen_lowpart_SUBREG
1114         on a SUBREG.
1115
1116 2018-04-17  Martin Jambor  <mjambor@suse.cz>
1117
1118         PR ipa/85421
1119         * ipa-cp.c (create_specialized_node): Call
1120         expand_all_artificial_thunks if necessary.
1121
1122 2018-04-17  Martin Liska  <mliska@suse.cz>
1123
1124         PR lto/85405
1125         * ipa-devirt.c (odr_types_equivalent_p): Remove trailing
1126         in message, remote space in between '_G' and '('.
1127
1128 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
1129
1130         PR target/85281
1131         * config/i386/sse.md (reduces<mode><mask_scalar_name>,
1132         avx512f_vmcmp<mode>3<round_saeonly_name>,
1133         avx512f_vmcmp<mode>3_mask<round_saeonly_name>,
1134         avx512f_sgetexp<mode><mask_scalar_name><round_saeonly_scalar_name>,
1135         avx512f_rndscale<mode><round_saeonly_name>,
1136         avx512dq_ranges<mode><mask_scalar_name><round_saeonly_scalar_name>,
1137         avx512f_vgetmant<mode><mask_scalar_name><round_saeonly_scalar_name>):
1138         Use %<iptr>2 instead of %2 for -masm=intel.
1139         (avx512f_vcvtss2usi<round_name>, avx512f_vcvtss2usiq<round_name>,
1140         avx512f_vcvttss2usi<round_saeonly_name>,
1141         avx512f_vcvttss2usiq<round_saeonly_name>): Use %k1 instead of %1 for
1142         -masm=intel.
1143         (avx512f_vcvtsd2usi<round_name>, avx512f_vcvtsd2usiq<round_name>,
1144         avx512f_vcvttsd2usi<round_saeonly_name>,
1145         avx512f_vcvttsd2usiq<round_saeonly_name>, ufloatv2siv2df2<mask_name>):
1146         Use %q1 instead of %1 for -masm=intel.
1147         (avx512f_sfixupimm<mode><sd_maskz_name><round_saeonly_name>,
1148         avx512f_sfixupimm<mode>_mask<round_saeonly_name>): Use %<iptr>3 instead
1149         of %3 for -masm=intel.
1150         (sse2_shufpd_v2df_mask): Fix a typo, change %{6%} to %{%6%} for
1151         -masm=intel.
1152         (*avx512vl_<code>v2div2qi2_store): Use %w0 instead of %0 for
1153         -masm=intel.
1154         (*avx512vl_<code><mode>v4qi2_store): Use %k0 instead of %0 for
1155         -masm=intel.
1156         (avx512vl_<code><mode>v4qi2_mask_store): Use a single pattern with
1157         %k0 and %1 for -masm=intel rather than two patterns, one with %0 and
1158         %g1.
1159         (*avx512vl_<code><mode>v8qi2_store): Use %q0 instead of %0 for
1160         -masm=intel.
1161         (avx512vl_<code><mode>v8qi2_mask_store): Use a single pattern with
1162         %q0 and %1 for -masm=intel rather than two patterns, one with %0 and
1163         %g1 and one with %0 and %1.
1164         (avx512er_vmrcp28<mode><round_saeonly_name>,
1165         avx512er_vmrsqrt28<mode><round_saeonly_name>): Use %<iptr>1 instead of
1166         %1 for -masm=intel.
1167         (avx5124fmaddps_4fmaddps_mask, avx5124fmaddps_4fmaddss_mask,
1168         avx5124fmaddps_4fnmaddps_mask, avx5124fmaddps_4fnmaddss_mask,
1169         avx5124vnniw_vp4dpwssd_mask, avx5124vnniw_vp4dpwssds_mask): Swap order
1170         of %0 and %{%4%} for -masm=intel.
1171         (avx5124fmaddps_4fmaddps_maskz, avx5124fmaddps_4fmaddss_maskz,
1172         avx5124fmaddps_4fnmaddps_maskz, avx5124fmaddps_4fnmaddss_maskz,
1173         avx5124vnniw_vp4dpwssd_maskz, avx5124vnniw_vp4dpwssds_maskz): Swap
1174         order of %0 and %{%5%}%{z%} for -masm=intel.
1175
1176 2018-04-17  Jan Hubicka  <jh@suse.cz>
1177
1178         PR lto/85405
1179         * ipa-devirt.c (odr_types_equivalent_p): Handle bit fields.
1180
1181 2018-04-17  Martin Liska  <mliska@suse.cz>
1182
1183         PR ipa/85329
1184         * multiple_target.c (create_dispatcher_calls): Set apostrophes
1185         for target_clone error message.  Make default implementation
1186         clone to be a local declaration.
1187         (separate_attrs): Add new argument and check for an empty
1188         string.
1189         (expand_target_clones): Handle it.
1190         (ipa_target_clone): Make redirection just for target_clones
1191         functions.
1192
1193 2018-04-16  Cesar Philippidis  <cesar@codesourcery.com>
1194             Tom de Vries  <tom@codesourcery.com>
1195
1196         PR middle-end/84955
1197         * omp-expand.c (expand_oacc_for): Add dummy false branch for
1198         tiled basic blocks without omp continue statements.
1199
1200 2018-04-16  Aaron Sawdey  <acsawdey@linux.ibm.com>
1201
1202         PR target/83660
1203         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Mark
1204         vec_extract expression as having side effects to make sure it gets
1205         a cleanup point.
1206
1207 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
1208
1209         PR target/85403
1210         * config/i386/i386.c (get_builtin_code_for_version): Check
1211         error_mark_node.
1212
1213 2018-04-16  Olga Makhotina  <olga.makhotina@intel.com>
1214
1215         PR target/84331
1216         * gcc/config.gcc: Support "skylake".
1217         * gcc/config/i386/i386-c.c (ix86_target_macros_internal): Handle
1218         PROCESSOR_SKYLAKE.
1219         * gcc/config/i386/i386.c (m_SKYLAKE): Define.
1220         (processor_target_table): Add "skylake".
1221         (ix86_option_override_internal): Add "skylake".
1222         (get_builtin_code_for_version): Handle PROCESSOR_SKYLAKE,
1223         PROCESSOR_CANNONLAKE.
1224         (get_builtin_code_for_version): Fix priority for
1225         PROCESSOR_ICELAKE_CLIENT, PROCESSOR_ICELAKE_SERVER,
1226         PROCESSOR_SKYLAKE-AVX512.
1227         * gcc/config/i386/i386.h (processor_costs): Define TARGET_SKYLAKE.
1228         (processor_type): Add PROCESSOR_SKYLAKE.
1229
1230 2018-04-16  Paolo Carlini  <paolo.carlini@oracle.com>
1231             Jason Merrill  <jason@redhat.com>
1232
1233         PR c++/85112
1234         * convert.c (convert_to_integer_1): Use direct recursion for
1235         enumeral types and types with a precision less than the number
1236         of bits in their mode.
1237
1238 2018-04-16  Julia Koval  <julia.koval@intel.com>
1239
1240         PR target/84413
1241         * config/i386/x86-tune.def (X86_TUNE_SSE_UNALIGNED_LOAD_OPTIMAL,
1242         X86_TUNE_SSE_UNALIGNED_STORE_OPTIMAL): Add m_SKYLAKE_AVX512
1243
1244 2018-04-14  Segher Boessenkool  <segher@kernel.crashing.org>
1245
1246         PR target/85293
1247         * config/rs6000/rs6000.opt (mdirect-move): Make deprecated.
1248         * doc/invoke.texi (RS/6000 and PowerPC Options): Remove -mdirect-move
1249         and -mno-direct-move.
1250
1251 2018-04-13  Paul A. Clarke  <pc@us.ibm.com>
1252
1253         PR target/83402
1254         * config/rs6000/emmintrin.h (_mm_slli_epi{16,32,64}):
1255         Ensure that vec_splat_s32 is only called with 0 <= shift < 16.
1256         Ensure negative shifts result in {0}.
1257
1258 2018-04-13  Vladimir Makarov  <vmakarov@redhat.com>
1259
1260         PR rtl-optimization/79916
1261         * config/rs6000/rs6000.c (rs6000_emit_move): Use assigned hard
1262         regs (if any) to define how to gnerate SD moves when LRA is in
1263         progress.
1264
1265 2018-04-13  Jakub Jelinek  <jakub@redhat.com>
1266
1267         PR rtl-optimization/85393
1268         * except.h (expand_dw2_landing_pad_for_region): Remove declaration.
1269         * except.c (expand_dw2_landing_pad_for_region): Make static.
1270         * bb-reorder.c (fix_up_crossing_landing_pad): In new_bb emit just
1271         a label and unconditional jump to old_bb, rather than
1272         expand_dw2_landing_pad_for_region insn(s) and jump to single_succ
1273         basic block.
1274
1275         PR rtl-optimization/85376
1276         * simplify-rtx.c (simplify_const_unary_operation): For CLZ and CTZ and
1277         zero op0, if C?Z_DEFINED_VALUE_AT_ZERO is false, return NULL_RTX
1278         instead of a specific value.
1279
1280 2018-04-13  Jan Hubicka  <hubicka@ucw.cz>
1281             Bin Cheng  <bin.cheng@arm.com>
1282
1283         PR tree-optimization/82965
1284         PR tree-optimization/83991
1285         * cfgloopanal.c (expected_loop_iterations_unbounded): Add
1286         by_profile_only parameter.
1287         * cfgloopmanip.c (scale_loop_profile): Further scale loop's profile
1288         information if the loop was predicted to iterate too many times.
1289         * cfgloop.h (expected_loop_iterations_unbounded): Update prototype
1290
1291 2018-04-13  Jan Hubicka  <hubicka@ucw.cz>
1292
1293         PR lto/71991
1294         * config/i386/i386.c (ix86_can_inline_p): Allow safe transitions for
1295         always inline.
1296
1297 2018-04-13  Martin Liska  <mliska@suse.cz>
1298             Jakub Jelinek  <jakub@redhat.com>
1299
1300         PR middle-end/81657
1301         * expr.h (enum block_op_methods): Add BLOCK_OP_NO_LIBCALL_RET.
1302         * expr.c (emit_block_move_hints): Handle BLOCK_OP_NO_LIBCALL_RET.
1303         * builtins.c (expand_builtin_memory_copy_args): Use
1304         BLOCK_OP_NO_LIBCALL_RET method for mempcpy with non-ignored target,
1305         handle dest_addr == pc_rtx.
1306
1307 2018-04-12  Segher Boessenkool  <segher@kernel.crashing.org>
1308
1309         PR target/85291
1310         * config/rs6000/rs6000.md (fix_trunc<mode>si2): Use legacy code if
1311         asked to not generate direct moves.
1312         (fix_trunc<mode>si2_stfiwx): Similar.
1313         (fix_trunc<mode>si2_internal): Similar.
1314
1315 2018-04-12  Jakub Jelinek  <jakub@redhat.com>
1316
1317         PR debug/83157
1318         * var-tracking.c (add_stores): Handle STRICT_LOW_PART SET_DEST.
1319         * cselib.c (cselib_record_sets): For STRICT_LOW_PART dest,
1320         lookup if dest in some wider mode is known to be const0_rtx and
1321         if so, record permanent equivalence for it to be ZERO_EXTEND of
1322         the narrower mode destination.
1323
1324 2018-04-12  Cesar Philippidis  <cesar@codesourcery.com>
1325
1326         * lto-streamer-out.c (output_function): Revert 259346.
1327         * omp-expand.c (expand_oacc_for): Likewise.
1328
1329 2018-04-12  Alexander Monakov  <amonakov@ispras.ru>
1330
1331         PR rtl-optimization/85354
1332         * sel-sched-ir.c (sel_init_pipelining): Move cfg_cleanup call...
1333         * sel-sched.c (sel_global_init): ... here.
1334
1335 2018-04-12  Eric Botcazou  <ebotcazou@adacore.com>
1336
1337         PR target/85238
1338         * lto-wrapper.c (debug_objcopy): Open the files in binary mode.
1339         * dwarf2out.c (dwarf2out_early_finish): Do not generate assembly in LTO
1340         mode for PE-COFF targets.
1341         * config/i386/i386-protos.h (i386_pe_asm_lto_start): Declare.
1342         (i386_pe_asm_lto_end): Likewise.
1343         * config/i386/cygming.h (TARGET_ASM_LTO_START): Define.
1344         (TARGET_ASM_LTO_END): Likewise.
1345         * config/i386/winnt.c (saved_debug_info_level): New static variable.
1346         (i386_pe_asm_lto_start): New function.
1347         (i386_pe_asm_lto_end): Likewise.
1348
1349 2018-04-12  Cesar Philippidis  <cesar@codesourcery.com>
1350             Richard Biener  <rguenther@suse.de>
1351
1352         PR middle-end/84955
1353         * lto-streamer-out.c (output_function): Fix CFG loop state before
1354         streaming out.
1355         * omp-expand.c (expand_oacc_for): Handle calls to internal
1356         functions like regular functions.
1357
1358 2018-04-12  Richard Biener  <rguenther@suse.de>
1359
1360         PR lto/85371
1361         * dwarf2out.c (init_sections_and_labels): Use debug_line_section[_label]
1362         for the early LTO debug to properly generate references to it
1363         during DIE emission.  Do not re-use that for the skeleton for
1364         split-dwarf.
1365         (dwarf2out_early_finish): Likewise.
1366
1367 2018-04-12  Jakub Jelinek  <jakub@redhat.com>
1368
1369         PR target/85328
1370         * config/i386/sse.md
1371         (<mask_codefor>avx512dq_vextract<shuffletype>64x2_1<mask_name> split,
1372         <mask_codefor>avx512f_vextract<shuffletype>32x4_1<mask_name> split,
1373         vec_extract_lo_<mode><mask_name> split, vec_extract_lo_v32hi,
1374         vec_extract_lo_v64qi): For non-AVX512VL if input is xmm16+ reg
1375         and output is a reg, avoid creating invalid lowpart subreg, but
1376         instead split into a 512-bit move.  Don't split if not AVX512VL,
1377         input is xmm16+ reg and output is a mem.
1378         (vec_extract_lo_<mode><mask_name>, vec_extract_lo_v32hi,
1379         vec_extract_lo_v64qi): Don't require split if not AVX512VL, input is
1380         xmm16+ reg and output is a mem.
1381
1382 2018-04-12  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
1383
1384         * config/s390/s390.c (s390_output_indirect_thunk_function): Check
1385         also for flag_dwarf2_cfi_asm.
1386
1387 2018-04-12  Jakub Jelinek  <jakub@redhat.com>
1388
1389         PR rtl-optimization/85342
1390         * regcprop.c (copyprop_hardreg_forward_1): Remove replaced array, use
1391         a bool scalar var inside of the loop instead.  Don't try to update
1392         recog_data.operand after failed apply_change_group.
1393
1394 2018-04-12  Tom de Vries  <tom@codesourcery.com>
1395
1396         PR target/85296
1397         * config/nvptx/nvptx.c (flexible_array_member_type_p): New function.
1398         (nvptx_assemble_decl_begin): Add undefined param.  Declare undefined
1399         array with flexible array member as array without given dimension.
1400         (nvptx_assemble_undefined_decl): Set nvptx_assemble_decl_begin call
1401         argument for undefined param to true.
1402
1403 2018-04-11  Aaron Sawdey  <acsawdey@linux.ibm.com>
1404
1405         PR target/85321
1406         * doc/invoke.texi (RS/6000 and PowerPC Options): Document options
1407         -mcall- and -mtraceback=. Remove options -mabi=spe and -mabi=no-spe
1408         from PowerPC section.
1409         * config/rs6000/sysv4.opt (mcall-): Improve help text.
1410         * config/rs6000/rs6000.opt (mblock-compare-inline-limit=): Trim
1411         help text that is too long.
1412         * config/rs6000/rs6000.opt (mblock-compare-inline-loop-limit=): Trim
1413         help text that is too long.
1414         * config/rs6000/rs6000.opt (mstring-compare-inline-limit=): Trim
1415         help text that is too long.
1416
1417 2018-04-11  Uros Bizjak  <ubizjak@gmail.com>
1418
1419         * config/alpha/alpha.md (stack_probe_internal): Rename
1420         from "probe_stack".  Update all callers.
1421
1422 2018-04-11  Alexander Monakov  <amonakov@ispras.ru>
1423
1424         PR rtl-optimization/84566
1425         * sched-deps.c (sched_analyze_insn): Check deps->readonly when invoking
1426         sched_macro_fuse_insns.
1427
1428 2018-04-11  Alexander Monakov  <amonakov@ispras.ru>
1429
1430         PR target/84301
1431         * sched-rgn.c (add_branch_dependences): Move sel_sched_p check here...
1432         (compute_block_dependences): ... from here.
1433
1434 2018-04-11  Jakub Jelinek  <jakub@redhat.com>
1435
1436         PR tree-optimization/85331
1437         * vec-perm-indices.h (vec_perm_indices::clamp): Change input type
1438         from int to HOST_WIDE_INT.
1439
1440 2018-04-11  Martin Jambor  <mjambor@suse.cz>
1441
1442         PR ipa/84149
1443         * ipa-cp.c (propagate_vals_across_pass_through): Expand comment.
1444         (cgraph_edge_brings_value_p): New parameter dest_val, check if it is
1445         not the same as the source val.
1446         (cgraph_edge_brings_value_p): New parameter.
1447         (gather_edges_for_value): Pass destination value to
1448         cgraph_edge_brings_value_p.
1449         (perhaps_add_new_callers): Likewise.
1450         (get_info_about_necessary_edges): Likewise and exclude values brought
1451         only by self-recursive edges.
1452         (create_specialized_node): Redirect only clones of self-calling edges.
1453         (+self_recursive_pass_through_p): New function.
1454         (find_more_scalar_values_for_callers_subset): Use it.
1455         (find_aggregate_values_for_callers_subset): Likewise.
1456         (known_aggs_to_agg_replacement_list): Removed.
1457         (decide_whether_version_node): Re-calculate known constants for all
1458         remaining context clones.
1459
1460 2018-04-11  Richard Biener  <rguenther@suse.de>
1461
1462         PR lto/85339
1463         * dwarf2out.c (dwarf2out_finish): Remove DW_AT_stmt_list attribute
1464         from early DWARF output.
1465         (dwarf2out_early_finish): Output line info unconditionally into
1466         early DWARF and add reference to it.
1467
1468 2018-04-11  Jakub Jelinek  <jakub@redhat.com>
1469
1470         PR target/85281
1471         * config/i386/sse.md (iptr): Add V16SFmode and V8DFmode cases.
1472         (<avx512>_vec_dup<mode><mask_name>): Use a single pattern for modes
1473         other than V2DFmode using iptr mode attribute.
1474         (<avx512>_vec_dup<mode><mask_name>): Use iptr mode attribute.
1475
1476 2018-04-11  Alexander Monakov  <amonakov@ispras.ru>
1477
1478         PR rtl-optimization/84659
1479         * sel-sched-ir.c (sel_init_pipelining): Invoke cleanup_cfg.
1480
1481 2018-04-11  Jakub Jelinek  <jakub@redhat.com>
1482
1483         PR debug/85302
1484         * dwarf2out.c (skip_loc_list_entry): Don't call size_of_locs if
1485         SIZEP is NULL.
1486         (output_loc_list): Pass address of a dummy size variable even in the
1487         locview handling loop.
1488         (index_location_lists): Add comment on why skip_loc_list_entry can't
1489         call size_of_locs.
1490
1491 2018-04-11  Thomas Preud'homme  <thomas.preudhomme@arm.com>
1492
1493         PR target/85261
1494         * config/arm/arm-builtins.c (arm_expand_builtin): Force input operand
1495         into register.
1496
1497 2018-04-10  Aaron Sawdey  <acsawdey@linux.ibm.com>
1498
1499         PR target/85321
1500         * doc/invoke.texi (RS/6000 and PowerPC Options): Document options
1501         -mblock-compare-inline-limit, -mblock-compare-inline-loop-limit,
1502         and -mstring-compare-inline-limit.
1503
1504 2018-04-10  Segher Boessenkool  <segher@kernel.crashing.org>
1505
1506         PR target/85287
1507         * gcc/config/rs6000/rs6000.md (allocate_stack): Put the residual size
1508         for stack clash protection in a register whenever we need it to be in
1509         a register.
1510
1511 2018-04-10  Segher Boessenkool  <segher@kernel.crashing.org>
1512
1513         * common/config/rs6000/rs6000-common.c (rs6000_option_init_struct):
1514         Enable -fasynchronous-unwind-tables by default if OBJECT_FORMAT_ELF.
1515
1516 2018-04-10  Segher Boessenkool  <segher@kernel.crashing.org>
1517
1518         PR target/85321
1519         * config/rs6000/rs6000.opt (mtraceback=): Show the allowed values in
1520         the help text.
1521         (mlong-double-): Ditto.
1522         * config/rs6000/sysv4.opt (msdata=): Ditto.
1523         (mtls-size=): Ditto.
1524
1525 2018-04-10  Kelvin Nilsen  <kelvin@gcc.gnu.org>
1526
1527         * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Remove
1528         erroneous entries for
1529         "vector int vec_ldl (int, long int *)", and
1530         "vector unsigned int vec_ldl (int, unsigned long int *)".
1531         Add comments and entries for
1532         "vector bool char vec_ldl (int, bool char *)",
1533         "vector bool short vec_ldl (int, bool short *)",
1534         "vector bool int vec_ldl (int, bool int *)",
1535         "vector bool long long vec_ldl (int, bool long long *)",
1536         "vector pixel vec_ldl (int, pixel *)",
1537         "vector long long vec_ldl (int, long long *)",
1538         "vector unsigned long long vec_ldl (int, unsigned long long *)".
1539         * config/rs6000/rs6000.c (rs6000_init_builtins): Initialize new
1540         type tree bool_long_long_type_node and correct definition of
1541         bool_V2DI_type_node to make reference to this new type tree.
1542         (rs6000_mangle_type): Replace erroneous reference to
1543         bool_long_type_node with bool_long_long_type_node.
1544         * config/rs6000/rs6000.h (enum rs6000_builtin_type_index): Add
1545         comments to emphasize sign distinctions for char and int types and
1546         replace RS6000_BTI_bool_long constant with
1547         RS6000_BTI_bool_long_long constant.  Also add comment to restrict
1548         use of RS6000_BTI_pixel.
1549         (bool_long_type_node): Remove this macro definition.
1550         (bool_long_long_type_node): New macro definition
1551
1552 2018-04-10  Jakub Jelinek  <jakub@redhat.com>
1553
1554         PR rtl-optimization/85300
1555         * combine.c (subst): Handle subst of CONST_SCALAR_INT_P new_rtx also
1556         into FLOAT and UNSIGNED_FLOAT like ZERO_EXTEND, return a CLOBBER if
1557         simplify_unary_operation fails.
1558
1559 2018-04-10  Martin Liska  <mliska@suse.cz>
1560
1561         * gdbhooks.py: Add pretty-printers for varpool_node, symtab_node,
1562         cgraph_edge and ipa_ref.
1563
1564 2018-04-10  Jakub Jelinek  <jakub@redhat.com>
1565
1566         PR target/85177
1567         PR target/85255
1568         * config/i386/sse.md
1569         (<extract_type>_vinsert<shuffletype><extract_suf>_mask): Fix
1570         computation of the VEC_MERGE selector from mask.
1571         (<extract_type>_vinsert<shuffletype><extract_suf>_1<mask_name>):
1572         Fix decoding of the VEC_MERGE selector into mask.
1573
1574 2018-04-10  Richard Sandiford  <richard.sandiford@linaro.org>
1575
1576         PR tree-optimization/85286
1577         * tree-vect-data-refs.c (vect_get_smallest_scalar_type):
1578
1579 2018-04-10  Richard Sandiford  <richard.sandiford@linaro.org>
1580
1581         * final.c (final_1): Set insn_last_address as well as
1582         insn_current_address.
1583
1584 2018-04-10  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1585
1586         PR target/85173
1587         * explow.c (emit_stack_probe): Call validize_mem on memory location
1588         before passing it to gen_probe_stack.  Create address operand and
1589         legitimize it for the probe_stack_address case.
1590
1591 2018-04-09  Jan Hubicka  <jh@suse.cz>
1592
1593         PR lto/85078
1594         * ipa-devirt.c (rebuild_type_inheritance-hash): New.
1595         * ipa-utils.h (rebuild_type_inheritance-hash): Declare.
1596         * tree.c (free_lang_data_in_type): Fix handling of binfos;
1597         walk basetypes.
1598         (free_lang_data): Rebuild type inheritance graph.
1599
1600 2018-04-09  Martin Sebor  <msebor@redhat.com>
1601
1602         * invoke.texi (-finline-small-functions): Mention other optimization
1603         options.
1604         (-findirect-inlining, -fpartial-inlining): Same.
1605         (-finline-functions-called-once): Same.
1606         (-freorder-blocks-and-partition): Same.
1607
1608 2018-04-09  Jan Hubicka  <jh@suse.cz>
1609
1610         PR rtl/84058
1611         * cfgcleanup.c (try_forward_edges): Do not give up on crossing
1612         jumps; choose last target that matches the criteria (i.e.
1613         no partition changes for non-crossing jumps).
1614         * cfgrtl.c (cfg_layout_redirect_edge_and_branch): Add basic
1615         support for redirecting crossing jumps to non-crossing.
1616
1617 2018-04-09  Alexey Brodkin  <abrodkin@synopsys.com>
1618
1619         * config/arc/arc.c (arc_expand_prologue): Set stack usage info
1620         also for naked functions.
1621
1622 2018-04-09  Claudiu Zissulescu  <claziss@synopsys.com>
1623
1624         * config/arc/arc.md (add_shift): New pattern.
1625         (add_shift2): Likewise.
1626         (sub_shift): Likewise.
1627         (sub_shift_cmp0_noout): Likewise.
1628         (compare_si_ashiftsi): Likewise.
1629         (xbfu_cmp0_noout): New combine pattern.
1630         (xbfu_cmp0"): Likewise.
1631         (movsi_set_cc_insn): Place the predicable variant first.
1632         (commutative_binary_cmp0_noout): Remove clobber.
1633         (commutative_binary_cmp0): New pattern.
1634         (noncommutative_binary_cmp0): Likewise.
1635         (noncommutative_binary_cmp0_noout): Likewise.
1636         (noncommutative_binary_comparison_result_used): Removed.
1637         (rsub_cmp0): New pattern.
1638         (rsub_cmp0_noout): Likewise.
1639         (extzvsi): Changed, keep only meaningful variants.
1640         (SQH, SEZ): New iterators.
1641         (SQH_postfix): New mode attribute.
1642         (SEZ_prefix): New code attribute.
1643         (<SEZ_prefix>xt<SQH_postfix>_cmp0_noout): New instruction pattern.
1644         (<SEZ_prefix>xt<SQH_postfix>_cmp0): Likewise.
1645         * config/arc/predicates.md (cc_set_register): Use CC_REG instead
1646         of numerical value.
1647         (noncommutative_operator): Check the availability of barrel
1648         shifter option.
1649
1650 2018-04-09  Richard Biener  <rguenther@suse.de>
1651
1652         PR tree-optimization/85284
1653         * tree-ssa-loop-niter.c (number_of_iterations_exit_assumptions):
1654         Only use the niter constraining form of simple_iv when the exit
1655         is always executed.
1656
1657 2018-04-09  Tom de Vries  <tom@codesourcery.com>
1658
1659         PR target/84041
1660         * config/nvptx/nvptx.md (define_c_enum "unspecv"): Add UNSPECV_MEMBAR.
1661         (define_expand "*memory_barrier"): New define_expand.
1662         (define_insn "memory_barrier"): New insn.
1663
1664 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
1665
1666         PR rtl-optimization/80463
1667         PR rtl-optimization/83972
1668         PR rtl-optimization/83480
1669
1670         * sel-sched-ir.c (has_dependence_note_mem_dep): Take into account the
1671         correct producer for the insn.
1672         (tidy_control_flow): Fixup seqnos in case of debug insns.
1673
1674 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
1675
1676         PR rtl-optimization/83913
1677
1678         * sel-sched-ir.c (merge_expr_data): Choose the middle between two
1679         different sched-times when merging exprs.
1680
1681 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
1682
1683         PR rtl-optimization/83962
1684
1685         * sel-sched-ir.c (tidy_control_flow): Correct the order in which we call
1686         tidy_fallthru_edge and tidy_control_flow.
1687
1688 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
1689
1690         PR rtl-optimization/83530
1691
1692         * sel-sched.c (force_next_insn): New global variable.
1693         (remove_insn_for_debug): When force_next_insn is true, also leave only
1694         next insn in the ready list.
1695         (sel_sched_region): When the region wasn't scheduled, make another pass
1696         over it with force_next_insn set to 1.
1697
1698 2018-04-08  Monk Chiang  <sh.chiang04@gmail.com>
1699
1700         * config.gcc (nds32le-*-*, nds32be-*-*): Add nds32/nds32_intrinsic.h
1701         into tm_file.
1702         * config/nds32/constants.md (unspec_volatile_element): Add enum values
1703         for interrupt control.
1704         * config/nds32/nds32-intrinsic.c: Implementation of intrinsic
1705         functions for interrupt control.
1706         * config/nds32/nds32-intrinsic.md: Likewise.
1707         * config/nds32/nds32_intrinsic.h: Likewise.
1708         * config/nds32/nds32.h (nds32_builtins): Likewise.
1709
1710 2018-04-08  Chung-Ju Wu  <jasonwucj@gmail.com>
1711
1712         * config/nds32/nds32.c (nds32_init_machine_status,
1713         nds32_legitimate_index_p, nds32_legitimate_address_p): Consider
1714         strict_aligned_p field.
1715         (nds32_expand_to_rtl_hook): New function.
1716         (TARGET_EXPAND_TO_RTL_HOOK): Define.
1717         * config/nds32/nds32.h (machine_function): Add strict_aligned_p field.
1718
1719 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
1720             Chung-Ju Wu  <jasonwucj@gmail.com>
1721
1722         * config.gcc (nds32*-*-*): Check that n7 is valid to --with-cpu.
1723         * config/nds32/nds32-n7.md: New file.
1724         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_N7.
1725         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n7
1726         pipeline.
1727         * config/nds32/nds32-protos.h: More declarations for n7 pipeline.
1728         * config/nds32/nds32.md (pipeline_model): Add n7.
1729         * config/nds32/nds32.opt (mcpu): Support n7 pipeline cpus.
1730         * config/nds32/pipelines.md: Include n7 settings.
1731
1732 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
1733             Chung-Ju Wu  <jasonwucj@gmail.com>
1734
1735         * config.gcc (nds32*-*-*): Check that e8 is valid to --with-cpu.
1736         * config/nds32/nds32-e8.md: New file.
1737         * config/nds32/nds32-opts.h (nds32-cpu_type): Add CPU_E8.
1738         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for e8
1739         pipeline.
1740         * config/nds32/nds32-protos.h: More declarations for e8 pipeline.
1741         * config/nds32/nds32.md (pipeline_model): Add e8.
1742         * config/nds32/nds32.opt (mcpu): Support e8 pipeline cpus.
1743         * config/nds32/pipelines.md: Include e8 settings.
1744
1745 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
1746             Chung-Ju Wu  <jasonwucj@gmail.com>
1747
1748         * config.gcc (nds32*-*-*): Check that n6/n8/s8 are valid to --with-cpu.
1749         * config/nds32/nds32-n8.md: New file.
1750         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_N6 and CPU_N8.
1751         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n8
1752         pipeline.
1753         * config/nds32/nds32-protos.h: More declarations for n8 pipeline.
1754         * config/nds32/nds32-utils.c: More implementations for n8 pipeline.
1755         * config/nds32/nds32.md (pipeline_model): Add n8.
1756         * config/nds32/nds32.opt (mcpu): Support n8 pipeline cpus.
1757         * config/nds32/pipelines.md: Include n8 settings.
1758
1759 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
1760             Chung-Ju Wu  <jasonwucj@gmail.com>
1761
1762         * config.gcc (nds32*): Add nds32-utils.o into extra_objs.
1763         * config/nds32/nds32-n9-2r1w.md: New file.
1764         * config/nds32/nds32-n9-3r2w.md: New file.
1765         * config/nds32/nds32-opts.h (nds32_cpu_type, nds32_mul_type,
1766         nds32_register_ports): New or modify for cpu n9.
1767         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n9
1768         pipeline.
1769         * config/nds32/nds32-protos.h: More declarations for n9 pipeline.
1770         * config/nds32/nds32-utils.c: New file.
1771         * config/nds32/nds32.h (TARGET_PIPELINE_N9, TARGET_PIPELINE_SIMPLE,
1772         TARGET_MUL_SLOW): Define.
1773         * config/nds32/nds32.md (pipeline_model): New attribute.
1774         * config/nds32/nds32.opt (mcpu, mconfig-mul, mconfig-register-ports):
1775         New options that support cpu n9.
1776         * config/nds32/pipelines.md: Include n9 settings.
1777         * config/nds32/t-nds32 (nds32-utils.o): Add dependency.
1778
1779 2018-04-08  Chung-Ju Wu  <jasonwucj@gmail.com>
1780
1781         * config/nds32/nds32-md-auxiliary.c (output_cond_branch): Output align
1782         information if necessary.
1783         (output_cond_branch_compare_zero): Likewise.
1784         * config/nds32/nds32.c (nds32_adjust_insn_length): Consider align case.
1785         (nds32_target_alignment): Refine for alignment.
1786         * config/nds32/nds32.h (NDS32_ALIGN_P): Define.
1787         (FUNCTION_BOUNDARY): Modify.
1788         * config/nds32/nds32.md (call_internal, call_value_internal): Consider
1789         align case.
1790         * config/nds32/nds32.opt (malways-align, malign-functions): New.
1791
1792 2018-04-08  Monk Chiang  <sh.chiang04@gmail.com>
1793
1794         * config/nds32/constants.md (unspec_volatile_element): Add values for
1795         TLB operation and data prefetch.
1796         * config/nds32/nds32-intrinsic.c: Implementation of intrinsic
1797         functions for TLB operation and data prefetch.
1798         * config/nds32/nds32-intrinsic.md: Likewise.
1799         * config/nds32/nds32_intrinsic.h: Likewise.
1800         * config/nds32/nds32.c (nds32_dpref_names): Likewise.
1801         (nds32_print_operand): Likewise.
1802         * config/nds32/nds32.h (nds32_builtins): Likewise.
1803
1804 2018-04-07  Thomas Koenig  <tkoenig@gcc.gnu.org>
1805         Andrew Pinski <pinsika@gcc.gnu.org>
1806
1807         PR middle-end/82976
1808         * match.pd: Use constant_boolean_node of correct type instead of
1809         boolean_true_node or boolean_false_node for simplifying
1810         pointer comparisons to zero.
1811
1812 2018-04-07  Jakub Jelinek  <jakub@redhat.com>
1813
1814         PR tree-optimization/80021
1815         * tree.c (verify_type_variant): Make error call in verify_variant_match
1816         translatable and remove final full stop.
1817
1818 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
1819
1820         * config/nds32/constants.md (unspec_volatile_element): Add
1821         UNSPEC_VOLATILE_EH_RETURN.
1822         * config/nds32/nds32-md-auxiliary.c (nds32_output_stack_push,
1823         nds32_output_stack_pop): Support dwarf exception handling process.
1824         * config/nds32/nds32-protos.h (nds32_dynamic_chain_address): Declare.
1825         * config/nds32/nds32.c (nds32_init_machine_status): Support dwarf
1826         exception handling process.
1827         (nds32_compute_stack_frame): Likewise.
1828         (nds32_return_addr_rtx): Likewise.
1829         (nds32_initial_elimination_offset): Likewise.
1830         (nds32_expand_prologue): Likewise.
1831         (nds32_expand_epilogue): Likewise.
1832         (nds32_dynamic_chain_address): New function.
1833         * config/nds32/nds32.h (machine_function): Add fields for dwarf
1834         exception handling.
1835         (DYNAMIC_CHAIN_ADDRESS): Define.
1836         (EH_RETURN_DATA_REGNO): Define.
1837         (EH_RETURN_STACKADJ_RTX): Define.
1838         * config/nds32/nds32.md (eh_return, nds32_eh_return): Implement
1839         patterns for dwarf exception handling.
1840
1841 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
1842
1843         * config/nds32/nds32.h: Clean up obsolete macros.
1844
1845 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
1846
1847         * config/nds32/constants.md (unspec_element, unspec_volatile_element):
1848         Add enum values for particular instructions.
1849         * config/nds32/nds32-intrinsic.c: Implementation of expanding
1850         particular intrinsic functions.
1851         * config/nds32/nds32-intrinsic.md: Likewise.
1852         * config/nds32/nds32_intrinsic.h: Likewise.
1853         * config/nds32/nds32.h (nds32_builtins): Likewise.
1854         * config/nds32/nds32.md (type): Add pbsad and pbsada.
1855         (btst, ave): New patterns for particular instructions.
1856
1857 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
1858
1859         * config/nds32/constants.md (unspec_element, unspec_volatile_element):
1860         Add enum values for atomic load/store and memory sync.
1861         * config/nds32/nds32-intrinsic.c: Implementation for atomic load/store
1862         and memory sync.
1863         * config/nds32/nds32-intrinsic.md: Likewise.
1864         * config/nds32/nds32_intrinsic.h: Likewise.
1865         * config/nds32/nds32.h (nds32_builtins): Likewise.
1866
1867 2018-04-07  Jakub Jelinek  <jakub@redhat.com>
1868
1869         PR tree-optimization/85257
1870         * fold-const.c (native_encode_vector): If not all elts could fit
1871         and off is -1, return 0 rather than offset.
1872         * tree-ssa-sccvn.c (vn_reference_lookup_3): Pass
1873         (offseti - offset2) / BITS_PER_UNIT as 4th argument to
1874         native_encode_expr.  Verify len * BITS_PER_UNIT >= maxsizei.  Don't
1875         adjust buffer in native_interpret_expr call.
1876
1877 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
1878
1879         * config/nds32/constants.md (unspec_volatile_element): Add cache
1880         control enum values.
1881         * config/nds32/nds32-intrinsic.c: Add cache control expand functions.
1882         * config/nds32/nds32-intrinsic.md: Add cache control patterns.
1883         * config/nds32/nds32.c (nds32_cctl_names): New.
1884         (nds32_print_operand): Handle cache control register names.
1885         * config/nds32/nds32.h (nds32_builtins): New enum values.
1886         * config/nds32/nds32_intrinsic.h: Add cache control enum types and
1887         macros.
1888         * config/nds32/nds32.md (type): Add mmu.
1889         * config/nds32/pipelines.md (simple_insn): Add mmu.
1890
1891 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
1892
1893         * config/nds32/nds32.md (type): Remove call.
1894         * config/nds32/pipelines.md (simple_insn): Likewise.
1895
1896 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
1897
1898         * config/nds32/constants.md (unspec_volatile_element): Add
1899         UNSPEC_VOLATILE_FMFCSR, UNSPEC_VOLATILE_FMTCSR and
1900         UNSPEC_VOLATILE_FMFCFG.
1901         * config/nds32/nds32-intrinsic.c (bdesc_noarg): New builtin
1902         description for fmfcfg and fmfcsr.
1903         (bdesc_1arg): Add fmtcsr.
1904         (bdesc_2arg): Add fcpynss, fcpyss, fcpynsd and fcpysd.
1905         (nds32_expand_builtin_impl): Deal with FPU intrinsic functions.
1906         * config/nds32/nds32-intrinsic.md (unspec_fcpynsd, unspec_fcpysd,
1907         unspec_fcpynss, unspec_fcpysd, unspec_fcpyss, unspec_fmfcsr,
1908         unspec_fmfcfg): New patterns.
1909         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_FMFCFG,
1910         NDS32_BUILTIN_FMFCSR, NDS32_BUILTIN_FMTCSR, NDS32_BUILTIN_FCPYNSS,
1911         NDS32_BUILTIN_FCPYSS,NDS32_BUILTIN_FCPYNSD and NDS32_BUILTIN_FCPYSD.
1912         * config/nds32/nds32_intrinsic.h (__nds32__fcpynsd, __nds32__fcpynss,
1913         __nds32__fcpysd, __nds32__fcpyss, __nds32__fmfcsr, __nds32__fmtcsr,
1914         __nds32__fmfcfg): Define.
1915
1916 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
1917
1918         * config/nds32/nds32.c (nds32_intrinsic_register_names): Add more
1919         intrinsic register names.
1920         * config/nds32/nds32_intrinsic.h (nds32_intrinsic_registers): Add more
1921         intrinsic register enum values and macros.
1922
1923 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
1924
1925         * config/nds32/nds32.c (nds32_legitimate_index_p): Modify condition
1926         for load/store addressing form.
1927         (nds32_print_operand_address): Likewise.
1928
1929 2018-04-06  Eric Botcazou  <ebotcazou@adacore.com>
1930
1931         PR target/85196
1932         * config/sparc/sparc.c (sparc_expand_move): Deal with symbolic operands
1933         based on LABEL_REF.  Remove useless assertion.
1934         (pic_address_needs_scratch): Fix formatting.
1935         (sparc_legitimize_pic_address): Minor tweaks.
1936         (sparc_delegitimize_address): Adjust assertion accordingly.
1937         * config/sparc/sparc.md (movsi_pic_label_ref): Change label_ref_operand
1938         into symbolic_operand.
1939         (movsi_high_pic_label_ref): Likewise.
1940         (movsi_lo_sum_pic_label_ref): Likewise.
1941         (movdi_pic_label_ref): Likewise.
1942         (movdi_high_pic_label_ref): Likewise.
1943         (movdi_lo_sum_pic_label_ref): Likewise.
1944
1945 2018-04-06  Amaan Cheval  <amaan.cheval@gmail.com>
1946
1947         * config.gcc (x86_64-*-rtems*): Add rtems.h to tm_file for
1948         custom LIB_SPEC setup.
1949
1950 2018-04-06  Ruslan Bukin  <br@bsdpad.com>
1951             Kito Cheng  <kito.cheng@gmail.com>
1952
1953         * config.gcc (riscv*-*-freebsd*): Add RISC-V FreeBSD support.
1954         * config/riscv/freebsd.h: New.
1955
1956 2018-04-06  Chung-Ju Wu  <jasonwucj@gmail.com>
1957
1958         * config/nds32/nds32.c (nds32_adjust_insn_length): Refine.
1959         * config/nds32/nds32.h (ADJUST_INSN_LENGTH): Change the location in
1960         file.
1961
1962 2018-04-06  Chung-Ju Wu  <jasonwucj@gmail.com>
1963             Kito Cheng  <kito.cheng@gmail.com>
1964
1965         * config/nds32/nds32-md-auxiliary.c (nds32_output_return,
1966         nds32_output_call, nds32_symbol_binds_local_p): New functions.
1967         * config/nds32/nds32-protos.h (nds32_output_call,
1968         nds32_output_return): Declare.
1969         * config/nds32/nds32.md: Refine all the call and return patterns.
1970
1971 2018-04-06  Jakub Jelinek  <jakub@redhat.com>
1972
1973         PR debug/85252
1974         * dwarf2out.c (rtl_for_decl_init): For STRING_CST initializer only
1975         build CONST_STRING if TYPE_MAX_VALUE is non-NULL and is INTEGER_CST.
1976
1977         PR rtl-optimization/84872
1978         * cfgloopmanip.c (create_preheader): Use make_forwarder_block even if
1979         nentry == 1 when CP_FALLTHRU_PREHEADERS and single_entry is
1980         EDGE_CROSSING edge.
1981
1982 2018-04-06  Tamar Christina  <tamar.christina@arm.com>
1983
1984         * expr.c (copy_blkmode_to_reg): Revert 254862.
1985         * doc/sourcebuild.texi (word_mode_no_slow_unalign): Likewise.
1986
1987 2018-04-06  Richard Biener  <rguenther@suse.de>
1988
1989         PR middle-end/85244
1990         * tree-dfa.c (get_ref_base_and_extent): Reset seen_variable_array_ref
1991         after seeing a component reference with an adjacent field.  Treat
1992         refs to arrays at struct end of external decls similar to
1993         refs to unconstrained commons.
1994
1995 2018-04-06  Jakub Jelinek  <jakub@redhat.com>
1996
1997         PR sanitizer/85213
1998         * fold-const.c (twoval_comparison_p): Remove SAVE_P argument and don't
1999         look through SAVE_EXPRs with non-side-effects argument.  Adjust
2000         recursive calls.
2001         (fold_comparison): Adjust twoval_comparison_p caller, don't handle
2002         save_p here.
2003
2004 2018-04-06  Richard Biener  <rguenther@suse.de>
2005
2006         PR middle-end/85180
2007         * alias.c (find_base_term): New wrapper around find_base_term
2008         unwinding CSELIB_VAL_PTR changes.
2009         (find_base_term): Do not restore CSELIB_VAL_PTR during the
2010         recursion.
2011
2012 2018-04-06  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
2013
2014         * config/s390/s390.c (s390_z10_optimize_cmp): Expand dedicated NOP
2015         instructions.
2016         * config/s390/s390.md (UNSPECV_NOP_LR_0, UNSPECV_NOP_LR_1): New
2017         constant definitions.
2018         ("nop"): lr 0,0 -> nopr r0
2019         ("nop_lr0", "nop_lr1"): New insn definitions.
2020
2021 2018-04-06  Chung-Ju Wu  <jasonwucj@gmail.com>
2022
2023         * config/nds32/nds32.md (*stack_push, *stack_pop): Use
2024         NDS32_V3PUSH_AVAILABLE_P macro.
2025
2026 2018-04-06  Monk Chiang  <sh.chiang04@gmail.com>
2027             Chung-Ju Wu  <jasonwucj@gmail.com>
2028
2029         * config.gcc (nds32*-*-*): Add v2j v3f v3s checking.
2030         (nds32*-*-*): Add float and fpu_config into supported_defaults.
2031         * common/config/nds32/nds32-common.c (TARGET_DEFAULT_TARGET_FLAGS):
2032         Include TARGET_DEFAULT_FPU_ISA and TARGET_DEFAULT_FPU_FMA.
2033         * config/nds32/constants.md (unspec_element): Add UNSPEC_COPYSIGN,
2034         UNSPEC_FCPYNSD, UNSPEC_FCPYNSS, UNSPEC_FCPYSD and UNSPEC_FCPYSS.
2035         * config/nds32/constraints.md: New constraints and checking for hard
2036         float configuration.
2037         * config/nds32/iterators.md: New mode iterator and attribute for hard
2038         float configuration.
2039         * config/nds32/nds32-doubleword.md: Use hard float alternatives and
2040         patterns.
2041         * config/nds32/nds32-fpu.md: New file.
2042         * config/nds32/nds32-md-auxiliary.c: New functions and checkings to
2043         deal with hard float code generation.
2044         * config/nds32/nds32-opts.h (nds32_arch_type): Add ARCH_V3F and
2045         ARCH_V3S.
2046         (abi_type, float_reg_number): New enum type.
2047         * config/nds32/nds32-predicates.c: New predicates for hard float.
2048         * config/nds32/nds32-protos.h: Declare functions for hard float.
2049         * config/nds32/nds32.c: Implementation for hard float configuration.
2050         * config/nds32/nds32.h: Definitions for hard float configuration.
2051         * config/nds32/nds32.md: Include hard float machine description and
2052         modify patterns for hard float configuration.
2053         * config/nds32/nds32.opt: New options for hard float configuration.
2054         * config/nds32/predicates.md: New predicates for hard float
2055         configuration.
2056
2057 2018-04-06  Kuan-Lin Chen  <kuanlinchentw@gmail.com>
2058
2059         * common/config/nds32/nds32-common.c
2060         (nds32_option_optimization_table): Enable -mreleax-hint by default.
2061
2062 2018-04-05  Jakub Jelinek  <jakub@redhat.com>
2063
2064         PR middle-end/85195
2065         * match.pd (BIT_FIELD_REF CONSTRUCTOR@0 @1 @2): Use view_convert around
2066         CONSTRUCTOR_ELT (ctor, ...)->value.
2067
2068 2018-04-05  Uros Bizjak  <ubizjak@gmail.com>
2069
2070         PR target/85193
2071         * config/i386/i386.md (define_attr "memory"): Handle rotate1 type.
2072
2073 2018-04-05  Tom de Vries  <tom@codesourcery.com>
2074
2075         PR target/85204
2076         * config/nvptx/nvptx.c (nvptx_single): Fix neutering of bb with only
2077         cond jump.
2078
2079 2018-04-05  Shiva Chen  <shiva0217@gmail.com>
2080             Kito Cheng  <kito.cheng@gmail.com>
2081
2082         * config/nds32/constraints.md (U33): Fine-tune checking condition.
2083         * config/nds32/nds32-md-auxiliary.c (nds32_mem_format): Ditto.
2084         * config/nds32/nds32.h (nds32_16bit_address_type): Add
2085         ADDRESS_POST_MODIFY_LO_REG_IMM3U.
2086
2087 2018-04-05  Shiva Chen  <shiva0217@gmail.com>
2088             Kito Cheng  <kito.cheng@gmail.com>
2089
2090         * config/nds32/constraints.md (Ufe): New memory constraint.
2091         * config/nds32/nds32-md-auxiliary.c (nds32_mem_format,
2092         nds32_output_16bit_load): Consider r8 register for lwi45.fe format.
2093         * config/nds32/nds32.c (nds32_print_operand): Output lwi45.fe
2094         operands.
2095         * config/nds32/nds32.h (nds32_16bit_address_type): Add ADDRESS_R8_IMM7U.
2096         * config/nds32/nds32.md (*mov<mode>): Adjust pattern.
2097
2098 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
2099
2100         * config/nds32/nds32.md: Use optimize_size in the condition for
2101         alu-shift instructions.
2102
2103 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
2104
2105         * config/nds32/nds32.md (divsi4, udivsi4): New patterns.
2106
2107 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
2108
2109         * config/nds32/nds32.md (negsi2): Refine pattern.
2110
2111 2018-04-05  Kito Cheng  <kito.cheng@gmail.com>
2112             Chung-Ju Wu  <jasonwucj@gmail.com>
2113
2114         * config/nds32/iterators.md (shift_rotate): New code iterator.
2115         (shift): New code attribute.
2116         * config/nds32/nds32-md-auxiliary.c (nds32_expand_constant): New.
2117         * config/nds32/nds32-protos.h (nds32_expand_constant): Declare.
2118         * config/nds32/nds32.c (nds32_print_operand): Deal with more cases.
2119         * config/nds32/nds32.md (addsi3, *add_srli): Refine implementation for
2120         bit-wise operations.
2121         (andsi3, *andsi3): Ditto.
2122         (iorsi3, *iorsi3, *or_slli, *or_srli): Ditto.
2123         (xorsi3, *xorsi3, *xor_slli, *xor_srli): Ditto.
2124         (<shift>si3, *ashlsi3, *ashrsi3, *lshrsi3, *rotrsi3): Ditto.
2125         * config/nds32/predicates.md (nds32_rimm5u_operand, nds32_and_operand,
2126         nds32_ior_operand, nds32_xor_operand): New predicates.
2127
2128 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
2129
2130         * config/nds32/nds32.md (add<mode>3, sub<mode>3): Rename to ...
2131         (addsi3, subsi3): ... this.
2132
2133 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
2134
2135         * config/nds32/nds32.md (*sub_srli, *and_slli): Fine-tune predicator.
2136
2137 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
2138
2139         * config/nds32/nds32.md: Adjust indention.
2140
2141 2018-04-05  Kito Cheng  <kito.cheng@gmail.com>
2142
2143         * config/nds32/nds32.md (feature): New attribute.
2144
2145 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
2146
2147         * config/nds32/nds32.md (subtype): New attribute.
2148
2149 2018-04-04  Thomas Preud'homme  <thomas.preudhomme@arm.com>
2150
2151         PR target/85203
2152         * config/arm/arm-builtins.c (arm_expand_builtin): Change
2153         expansion to perform a bitwise AND of the argument followed by a
2154         boolean negation of the result.
2155
2156 2018-04-04  Peter Bergner  <bergner@vnet.ibm.com>
2157
2158         PR rtl-optimization/84878
2159         * ddg.c (add_cross_iteration_register_deps): Use DF_REF_BB to determine
2160         the basic block.  Assert the use reference is not artificial and that
2161         it has an associated insn.
2162
2163 2018-04-04  Michael Matz  <matz@suse.de>
2164
2165         * builtins.c (compute_objsize): Pass correct operand
2166         to array_at_struct_end_p.
2167
2168 2018-04-04  Richard Biener  <rguenther@suse.de>
2169
2170         PR lto/85176
2171         * dwarf2out.c (dwarf2out_register_external_die): Peel namespaces
2172         from contexts for DINFO_LEVEL_TERSE and below.
2173
2174 2018-04-04  Kito Cheng  <kito.cheng@gmail.com>
2175
2176         * config/nds32/nds32-doubleword.md (move_<mode>): Require
2177         resiter_operand condition.
2178         * config/nds32/nds32.md (*move<mode>): Ditto.
2179
2180 2018-04-04  Kito Cheng  <kito.cheng@gmail.com>
2181             Monk Chiang  <sh.chiang04@gmail.com>
2182
2183         * config/nds32/nds32.md (movmisalign<mode>): New pattern.
2184
2185 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
2186
2187         * config/nds32/nds32.md (movqi, movhi): Merge into mov<mode>.
2188
2189 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
2190             Kito Cheng  <kito.cheng@gmail.com>
2191
2192         * config/nds32/nds32-md-auxiliary.c (nds32_inverse_cond_code,
2193         nds32_cond_code_str, output_cond_branch,
2194         output_cond_branch_compare_zero, nds32_expand_cbranch,
2195         nds32_expand_cstore, nds32_expand_movcc,
2196         nds32_output_cbranchsi4_equality_zero,
2197         nds32_output_cbranchsi4_equality_reg,
2198         nds32_output_cbranchsi4_equality_reg_or_const_int,
2199         nds32_output_cbranchsi4_greater_less_zero: New functions.
2200         * config/nds32/nds32-protos.h (nds32_expand_cbranch,
2201         nds32_expand_cstore, nds32_expand_movcc,
2202         nds32_output_cbranchsi4_equality_zero,
2203         nds32_output_cbranchsi4_equality_reg,
2204         nds32_output_cbranchsi4_equality_reg_or_const_int,
2205         nds32_output_cbranchsi4_greater_less_zero): Declare.
2206         * config/nds32/predicates.md (nds32_movecc_comparison_operator,
2207         nds32_rimm11s_operand): New predicates.
2208         * config/nds32/nds32.h (nds32_expand_result_type): New enum type.
2209         * config/nds32/nds32.md: Rewrite all the branch and conditional move
2210         patterns.
2211
2212 2018-04-04  Kito Cheng  <kito.cheng@gmail.com>
2213
2214         * config/nds32/nds32-doubleword.md: Refine all the instruction type.
2215         * config/nds32/nds32.md: Ditto.
2216         * config/nds32/pipelines.md: Ditto.
2217
2218 2018-04-04  Richard Biener  <rguenther@suse.de>
2219
2220         PR tree-optimization/85168
2221         * tree-ssa-sccvn.c (vn_reference_maybe_forwprop_address): Avoid
2222         propagating abnormals.
2223
2224 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
2225
2226         * config/nds32/nds32.md (enabled): Use yes/no for this attribute.
2227
2228 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
2229             Kito Cheng  <kito.cheng@gmail.com>
2230
2231         * config/nds32/nds32-md-auxiliary.c (nds32_long_call_p): New function.
2232         * config/nds32/nds32-protos.h (nds32_long_call_p): Declare.
2233         * config/nds32/nds32.c (nds32_function_ok_for_sibcall): New function.
2234         (TARGET_FUNCTION_OK_FOR_SIBCALL): Define.
2235         * config/nds32/nds32.md (sibcall_internal): New.
2236         (sibcall_register): Remove.
2237         (sibcall_immediate): Remove.
2238         (sibcall_value_internal): New.
2239         (sibcall_value_register): Remove.
2240         (sibcall_value_immediate): Remove.
2241         * config/nds32/predicates.md (nds32_general_register_operand): New.
2242         (nds32_call_address_operand): New.
2243
2244 2018-04-03  Jakub Jelinek  <jakub@redhat.com>
2245
2246         PR rtl-optimization/85167
2247         * shrink-wrap.c (move_insn_for_shrink_wrap): Don't set bb_uses and
2248         bb_defs if *split_p, instead preinitialize it to NULL.
2249
2250         PR tree-optimization/85156
2251         * builtins.c (fold_builtin_expect): Use save_expr on arg1 to avoid
2252         evaluating the argument multiple times.
2253
2254 2018-04-03  Bill Schmidt  <wschmidt@linux.ibm.com>
2255
2256         * config/rs6000/emmintrin.h (_mm_cvtpd_epi32): Use __vector rather
2257         than vector.
2258         (_mm_cvtpd_ps): Likewise.
2259         (_mm_cvttpd_epi32): Likewise.
2260         * config/rs6000/mmintrin.h (_mm_unpacklo_pi8): Likewise.
2261         * config/rs6000/xmmintrin.h: For strict-ANSI C++ or C11, undefine
2262         vector, pixel, and bool following altivec.h include.
2263
2264 2018-04-03  Martin Sebor  <msebor@redhat.com>
2265
2266         * doc/extend.texi (Common Function Attributes): Clarify.
2267         (const attribute): Likewise.
2268         (pure attribute): Likewise.
2269
2270 2018-04-03  Jakub Jelinek  <jakub@redhat.com>
2271
2272         PR target/85169
2273         * config/i386/i386.c (ix86_expand_vector_set): Use
2274         HOST_WIDE_INT_1U << elt instead of 1 << elt.  Formatting fix.
2275
2276 2018-04-03  Uros Bizjak  <ubizjak@gmail.com>
2277
2278         * config/i386/i386.c (emit_i387_cw_initialization): Always use logic
2279         instructions when changing rounding bits to preserve precision bits
2280         in the x87 control word.
2281
2282 2018-04-03  Martin Liska  <mliska@suse.cz>
2283
2284         PR tree-optimization/82491
2285         * rtl.h (strip_offset_and_add): Replace += suboffset with
2286         poly_uint64 () + suboffset.
2287
2288 2018-03-29  Martin Liska  <mliska@suse.cz>
2289             Martin Jambor  <mjambor@suse.cz>
2290
2291         PR ipa/84947
2292         * ipa-cp.c (propagate_bits_across_jump_function): Bail out if
2293         param_type is not an integral or pointer type.
2294
2295 2018-04-03  Richard Biener  <rguenther@suse.de>
2296
2297         * sese.h (recompute_all_dominators): Remove.
2298
2299 2018-04-02  Martin Sebor  <msebor@redhat.com>
2300
2301         * doc/invoke.texi (-Wrestrict): Fix typos.
2302
2303 2018-04-02  Jim Wilson  <jimw@sifive.com>
2304
2305         * config/riscv/riscv.h (SHIFT_COUNT_TRUNCATED): Set to zero.
2306         * config/riscv/riscv.md (<optab>si3): Use QImode shift count.
2307         (<optab>di3, <optab>si3_extend): Likewise.
2308         (<optab>si3_mask, <optab>si3_mask_1): New.
2309         (<optab>di3_mask, <optab>di3_mask_1): New.
2310         (<optab>si3_extend_mask, <optab>si3_extend_mask_1): New.
2311         (lshrsi3_zero_extend_1): Use VOIDmode shift count.
2312         * config/riscv/sync.md (atomic_test_and_set): Emit QImode shift count.
2313
2314 2018-04-02  Gerald Pfeifer  <gerald@pfeifer.com>
2315
2316         * doc/cpp.texi (Variadic Macros): Fix line continuation in an
2317         example.
2318
2319 2018-04-02  Chung-Ju Wu  <jasonwucj@gmail.com>
2320
2321         * config/nds32/nds32.c (TARGET_CANONICALIZE_COMPARISON): Define.
2322         (nds32_canonicalize_comparison): New function.
2323
2324 2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
2325             Kito Cheng  <kito.cheng@gmail.com>
2326             Kuan-Lin Chen  <kuanlinchentw@gmail.com>
2327
2328         * config.gcc (nds32): Add nds32-relax-opt.o into extra_objs.
2329         * config/nds32/constants.md (unspec_volatile_element): Add
2330         UNSPEC_VOLATILE_RELAX_GROUP.
2331         * config/nds32/nds32-relax-opt.c: New file.
2332         * config/nds32/nds32-predicates.c
2333         (nds32_symbol_load_store_p): New function.
2334         * config/nds32/nds32-protos.h
2335         (nds32_symbol_load_store_p): Declare function.
2336         (make_pass_nds32_relax_opt): Declare new rtl pass function.
2337         * config/nds32/nds32.c
2338         (nds32_register_pass): New function to register pass.
2339         (nds32_register_passes): New function to register passes.
2340         * config/nds32/nds32.md (relax_group): New pattern.
2341         * config/nds32/nds32.opt (mrelax-hint): New option.
2342         * config/nds32/t-nds32 (nds32-relax-opt.o): New dependency.
2343
2344 2018-04-01  Kito Cheng  <kito.cheng@gmail.com>
2345
2346         * config/nds32/t-nds32: Modify files dependency.
2347
2348 2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
2349
2350         * config/nds32/nds32.h (FUNCTION_PROFILER): Output newline character.
2351         (PROFILE_HOOK): Define its implementation.
2352
2353 2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
2354
2355         * config/nds32/nds32.h (WCHAR_TYPE, WCHAR_TYPE_SIZE): Use unsigned int
2356         type and 32-bit size.
2357
2358 2018-04-01  Jakub Jelinek  <jakub@redhat.com>
2359
2360         PR middle-end/85090
2361         * config/i386/sse.md (V): Add V64QI and V32HI for TARGET_AVX512F.
2362         (V_128_256): New mode iterator.
2363         (*avx512dq_vextract<shuffletype>64x2_1 splitter): New define_split.
2364         (*avx512f_vextract<shuffletype>32x4_1 splitter): Likewise.
2365         (xop_pcmov_<mode><avxsizesuffix>): Use V_128_256 mode iterator instead
2366         of V.
2367         * config/i386/i386.c (ix86_expand_vector_set): Improve V32HImode and
2368         V64QImode expansion for !TARGET_AVX512BW && TARGET_AVX512F.
2369
2370 2018-03-31  Segher Boessenkool  <segher@kernel.crashing.org>
2371
2372         PR target/83315
2373         * config/rs6000/xmmintrin.h (_mm_set_ps, _mm_max_ps): Handle (quiet)
2374         NaN inputs correctly.
2375
2376 2018-03-30  Peter Bergner  <bergner@vnet.ibm.com>
2377
2378         PR target/80546
2379         * config/rs6000/vsx.md (??r): New mode attribute.
2380         (*vsx_mov<mode>_64bit): Use it.
2381         (*vsx_mov<mode>_32bit): Likewise.
2382
2383 2018-03-30  Martin Sebor  <msebor@redhat.com>
2384
2385         PR tree-optimization/84818
2386         * builtins.c (check_access): Use warning_n.
2387
2388 2018-03-30  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
2389
2390         PR target/83822
2391         * config/rs6000/rs6000-string.c (expand_compare_loop): Fix redundant
2392         condition.
2393         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Fix redundant
2394         condition.
2395
2396 2018-03-30  Julia Koval  <julia.koval@intel.com>
2397
2398         PR target/84413
2399         * x86-tune.def (movx, partial_reg_dependency): Enable for
2400         m_SKYLAKE_AVX512.
2401
2402 2018-03-29  Vladimir Makarov  <vmakarov@redhat.com>
2403
2404         PR inline-asm/84985
2405         * lra-constraints.c (process_alt_operands): Move setting
2406         this_alternative_matches below.
2407
2408 2018-03-29  Martin Liska  <mliska@suse.cz>
2409
2410         PR lto/84995.
2411         * doc/invoke.texi: Document how LTO works with debug info.
2412         Describe auto-load support of binutils.  Mention 'x86-64'
2413         as valid option value of -march option.
2414
2415 2018-03-29  Jakub Jelinek  <jakub@redhat.com>
2416
2417         * config/i386/sse.md (<avx512>_blendm<mode>): Use <sseintprefix>.
2418
2419         PR c/85094
2420         * fold-const.c (operand_equal_p): Handle DEBUG_BEGIN_STMT.
2421         For STATEMENT_LIST, pass down OEP_LEXICOGRAPHIC and maybe
2422         OEP_NO_HASH_CHECK for recursive call, to avoid exponential
2423         checking.
2424
2425 2018-03-28  Peter Bergner  <bergner@vnet.ibm.com>
2426
2427         PR target/84912
2428         * config/rs6000/rs6000.h (RS6000_BTM_POWERPC64): New define.
2429         (RS6000_BTM_COMMON): Add RS6000_BTM_POWERPC64.
2430         * config/rs6000/rs6000.c (rs6000_builtin_mask_calculate): Add support
2431         for RS6000_BTM_POWERPC64.
2432         (rs6000_invalid_builtin): Add handling for RS6000_BTM_POWERPC64
2433         (rs6000_builtin_mask_names): Add RS6000_BTM_POWERPC64.
2434         * config/rs6000/rs6000-builtin.def (BU_P7_POWERPC64_MISC_2): New macro
2435         definition.
2436         (DIVDE): Use it.
2437         (DIVDEU): Likewise.
2438
2439 2018-03-28 Carl Love  <cel@us.ibm.com>
2440
2441         Revert
2442         2017-09-27  Carl Love  <cel@us.ibm.com>
2443
2444         * config/rs6000/rs6000-builtin.def (BU_FP_1MISC_1): Add define macro.
2445         (FCTID, FCTIW): Add BU_FP_MISC_1 macro expansion for builtins.
2446         * config/rs6000/rs6000.md (lrintsfsi2): Add define_insn for the
2447         fctiw instruction.
2448
2449 2018-03-28  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
2450
2451         * config/rs6000/xmmintrin.h (_mm_max_pi16): Use __vector __bool
2452         instead of __vector bool.
2453         (_mm_max_pu8): Likewise.
2454         (_mm_min_pi16): Likewise.
2455
2456 2018-03-28  Peter Bergner  <bergner@vnet.ibm.com>
2457
2458         PR target/84912
2459         * config/rs6000/rs6000-builtin.def (DIVWEO): Delete macro expansion.
2460         (DIVWEUO): Likewise.
2461         (DIVDEO): Likewise.
2462         (DIVDEUO): Likewise.
2463         * config/rs6000/rs6000.c (builtin_function_type): Remove support for
2464         DIVWEUO and DIVDEUO.
2465         * config/rs6000/rs6000.md (UNSPEC_DIVEO, UNSPEC_DIVEUO): Delete unspecs.
2466         (UNSPEC_DIV_EXTEND): Remove deleted unspecs.
2467         (div_extend): Likewise.
2468         * doc/extend.texi (__builtin_divweo): Remove documentation for deleted
2469         builtin function.
2470         (__builtin_divweuo): Likewise.
2471         (__builtin_divdeo): Likewise.
2472         (__builtin_divdeuo): Likewise.
2473
2474 2018-03-28  Jakub Jelinek  <jakub@redhat.com>
2475
2476         PR target/85095
2477         * config/i386/i386.md (*add<mode>3_carry_0, *addsi3_carry_zext_0,
2478         *sub<mode>3_carry_0, *subsi3_carry_zext_0): New patterns.
2479
2480         PR tree-optimization/82004
2481         * gimple-match-head.c (optimize_pow_to_exp): New function.
2482         * match.pd (pow(C,x) -> exp(log(C)*x)): Wrap with #if GIMPLE.
2483         Don't fold to exp if optimize_pow_to_exp is false.
2484
2485 2018-03-28  Martin Liska  <mliska@suse.cz>
2486
2487         PR other/84819
2488         * calls.c (initialize_argument_information): Fix trailing space.
2489         * common.opt: Fix typo and provide better explanation for
2490         -fsanitize-coverage option.
2491         * config/i386/i386.opt: Fix typo.
2492
2493 2018-03-28  Jakub Jelinek  <jakub@redhat.com>
2494             Martin Liska  <mliska@suse.cz>
2495
2496         PR sanitizer/85081
2497         * gimplify.c (asan_poison_variable): Don't do the check for
2498         gimplify_omp_ctxp here.
2499         (gimplify_decl_expr): Do it here.
2500         (gimplify_target_expr): Likewise.
2501
2502 2018-03-28  Martin Liska  <mliska@suse.cz>
2503
2504         PR target/84988
2505         * config/i386/i386.c (ix86_function_arg_advance): Do not call
2506         chkp_type_bounds_count if MPX is not enabled.
2507
2508 2018-03-27  Chung-Ju Wu  <jasonwucj@gmail.com>
2509
2510         * config/nds32/nds32.h (BRANCH_COST): Adjust cost.
2511
2512 2018-03-27  Michael Meissner  <meissner@linux.vnet.ibm.com>
2513
2514         PR target/84914
2515         * config/rs6000/rs6000.c (create_complex_muldiv): New helper
2516         function to create the function decl for complex long double
2517         multiply and divide for -mabi=ieeelongdouble.
2518         (init_float128_ieee): Call it.
2519
2520 2018-03-27  H.J. Lu  <hongjiu.lu@intel.com>
2521
2522         PR target/85044
2523         * config/i386/i386.c (ix86_trampoline_init): Insert ENDBR for
2524         -fcf-protection=branch -mibt.
2525         * config/i386/i386.h (TRAMPOLINE_SIZE): Increased by 4 bytes.
2526
2527 2018-03-27  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
2528
2529         PR target/81863
2530         * config/arm/arm.c (arm_valid_symbolic_address): Handle arm_word_relocations
2531
2532 2018-03-27  Cesar Philippidis  <cesar@codesourcery.com>
2533
2534         PR target/85056
2535         * config/nvptx/nvptx.c (nvptx_assemble_decl_begin): Add '[]' to
2536         extern array declarations.
2537
2538 2018-03-27  Richard Biener  <rguenther@suse.de>
2539
2540         PR middle-end/84067
2541         * match.pd ((A * C) +- (B * C) -> (A+-B) * C): Guard with
2542         explicit single_use checks.
2543
2544 2018-03-27  Richard Biener  <rguenther@suse.de>
2545
2546         PR tree-optimization/85082
2547         * tree-ssa-sccvn.c (vn_reference_lookup_or_insert_for_pieces):
2548         Valueize the VUSE.
2549
2550 2018-03-27  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
2551
2552         * config.gcc (aarch64*-*-linux*): New TARGET_DEFAULT_ASYNC_UNWIND_TABLES
2553         * common/config/aarch64/aarch64-common.c (aarch64_optimization_table[]):
2554         Turn on fasynchronous-unwind-tables and funwind-tables.
2555
2556 2018-03-26  Uros Bizjak  <ubizjak@gmail.com>
2557
2558         PR target/85073
2559         * config/i386/i386.md (*bmi_blsr_<mode>_cmp): New insn pattern.
2560         (*bmi_blsr_<mode>_ccz): Ditto.
2561
2562 2018-03-26  Tom de Vries  <tom@codesourcery.com>
2563
2564         PR tree-optimization/85063
2565         * omp-general.c (offloading_function_p): New function.  Factor out
2566         of ...
2567         * omp-offload.c (pass_omp_target_link::gate): ... here.
2568         * omp-general.h (offloading_function_p): Declare.
2569         * tree-switch-conversion.c (build_one_array): Mark CSWTCH.x variable
2570         with attribute omp declare target for offloading functions.
2571
2572 2018-03-24  Richard Sandiford  <richard.sandiford@linaro.org>
2573
2574         PR tree-optimization/84005
2575         * tree-data-ref.h (get_base_for_alignment): Declare.
2576         * tree-data-ref.c (get_base_for_alignment_1): New function.
2577         (get_base_for_alignment): Likewise.
2578         * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Use
2579         get_base_for_alignment to find a suitable base object, instead
2580         of always using drb->base_address.
2581
2582 2018-03-23  Jakub Jelinek  <jakub@redhat.com>
2583
2584         PR inline-asm/85022
2585         * emit-rtl.c (init_emit_regs): Indicate that VOIDmode MEMs don't have
2586         known size by default.
2587
2588 2018-03-23  Vladimir Makarov  <vmakarov@redhat.com>
2589
2590         PR inline-asm/85030
2591         * lra-constraints.c (process_alt_operands): Don't match BLKmode
2592         and non BLKmode operands.
2593
2594 2018-03-23  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
2595
2596         PR target/85026
2597         * config/arm/arm.md (unaligned_loadhis): Remove first alternative.
2598         Clean up attributes.
2599
2600 2018-03-23  Richard Biener  <rguenther@suse.de>
2601
2602         PR debug/85020
2603         * dwarf2out.c (rtl_for_decl_location): Do not generate RTL early when
2604         we are going to emit early debug for LTO.
2605
2606 2018-03-23  Jakub Jelinek  <jakub@redhat.com>
2607
2608         PR inline-asm/85034
2609         * function.c (match_asm_constraints_1): Don't optimize if input
2610         doesn't satisfy general_operand predicate for output's mode.
2611
2612         PR inline-asm/85022
2613         * alias.c (write_dependence_p): Don't require for x_canonicalized
2614         non-VOIDmode if x has VOIDmode.
2615
2616         PR sanitizer/85029
2617         * sanopt.c (maybe_optimize_ubsan_ptr_ifn): If DECL_REGISTER (base),
2618         just don't try to optimize it rather than assert it never happens.
2619
2620 2018-03-22  Kelvin Nilsen  <kelvin@gcc.gnu.org>
2621
2622         * config/rs6000/rs6000-builtin.def: Remove various BU_ALTIVEC_X
2623         macro expansions for definition of ST_INTERNAL_<mode> and
2624         LD_INTERNAL_<mode> builtins.
2625         * config/rs6000/rs6000-protos.h (rs6000_address_for_altivec):
2626         Remove prototype.
2627         * config/rs6000/rs6000.c (altivec_expand_ld_builtin): Delete this
2628         function.
2629         (altivec_expand_st_builtin): Likewise.
2630         (altivec_expand_builtin): Remove calls to deleted functions.
2631         (rs6000_address_for_altivec): Delete this function.
2632         * config/rs6000/vector.md: Remove expands for
2633         vector_altivec_load_<mode> and vector_altivec_store_<mode>.
2634
2635 2018-03-22  Sudakshina Das  <sudi.das@arm.com>
2636
2637         PR target/84826
2638         * config/arm/arm.h (machine_function): Add static_chain_stack_bytes.
2639         * config/arm/arm.c (arm_compute_static_chain_stack_bytes): Avoid
2640         re-computing once computed.
2641         (arm_expand_prologue): Compute machine->static_chain_stack_bytes.
2642         (arm_init_machine_status): Initialize
2643         machine->static_chain_stack_bytes.
2644
2645 2018-03-22  Kelvin Nilsen  <kelvin@gcc.gnu.org>
2646
2647         PR target/84760
2648         * doc/extend.texi: Add four new prototypes for vec_ld.
2649         * config/rs6000/rs6000-builtin.def (LVX_V1TI): Reorder symbol
2650         definitions for more logical presentation.
2651         * config/rs6000/rs6000-c.c: (altivec_overloaded_builtins): Add
2652         entries for V1TI variants of __builtin_altivec_ld builtin.
2653         * config/rs6000/rs6000.c: (altivec_expand_lv_builtin): Add test and
2654         handling of V1TI variant of LVX icode pattern.
2655         (altivec_expand_builtin): Add case for ALTIVEC_BUILTIN_LVX_V1TI.
2656         (rs6000_gimple_fold_builtin): Likewise.
2657         (altivec_init_builtins): Add code to define
2658         __builtin_altivec_lvx_v1ti function.
2659
2660 2018-03-22  Jakub Jelinek  <jakub@redhat.com>
2661
2662         PR inline-asm/84941
2663         * function.c (match_asm_constraints_1): Don't do the optimization
2664         if input isn't a REG, SUBREG, MEM or constant.
2665
2666 2018-03-22  Tom de Vries  <tom@codesourcery.com>
2667
2668         PR tree-optimization/84956
2669         * tree-ssa-tail-merge.c (find_clusters_1): Skip bbs with
2670         bb_has_abnormal_pred.
2671
2672 2018-03-22  Jakub Jelinek  <jakub@redhat.com>
2673
2674         PR sanitizer/85018
2675         * dwarf2asm.c (dw2_output_indirect_constant_1): Set
2676         DECL_INITIAL (decl) to decl at the end.
2677         * varasm.c (use_blocks_for_decl_p): Revert the 2018-03-20 change,
2678         adjust the comment.
2679
2680 2018-03-21  Joseph Myers  <joseph@codesourcery.com>
2681
2682         * doc/extend.texi (__builtin_tgmath): Document when complex
2683         integer types are treated as _Complex _Float64.
2684
2685 2018-03-21  Tom de Vries  <tom@codesourcery.com>
2686
2687         * doc/extend.texi (__builtin_extend_pointer): Remove pasto.
2688
2689 2018-03-21  Jakub Jelinek  <jakub@redhat.com>
2690
2691         PR tree-optimization/84960
2692         * tree-cfg.c (remove_bb): Don't move forced labels into bb->prev_bb
2693         if it is ENTRY block, move them into single succ of ENTRY in that case.
2694
2695 2018-03-21  Richard Sandiford  <richard.sandiford@linaro.org>
2696
2697         PR tree-optimization/84811
2698         * poly-int.h (poly_span_traits): Remove the T3 parameter and
2699         promote HOST_WIDE_INT T2 - T1 results to unsigned HOST_WIDE_INT.
2700         (maybe_in_range_p, known_in_range_p, ranges_known_overlap_p):
2701         (known_subrange_p): Update accordingly.  Cast each value involved
2702         in the size comparison, rather than casting the result of the
2703         subtraction.
2704
2705 2018-03-21  Jakub Jelinek  <jakub@redhat.com>
2706
2707         PR tree-optimization/84982
2708         * gimple-ssa-store-merging.c (invert_op): Handle boolean inversion
2709         by flipping the least significant bit rather than all bits from
2710         bitpos to bitpos + bitsize - 1.
2711
2712 2018-03-21  Nathan Sidwell  <nathan@acm.org>
2713
2714         * doc/extend.texi (Deprecated Features): Remove mention of
2715         long-deleted deprecations.
2716
2717 2018-03-21  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2718
2719         PR jit/84288
2720         * configure.ac (gcc_cv_ld_soname) <*-*-solaris2*>: Set.
2721         * configure: Regenerate.
2722
2723 2018-03-21  Tom de Vries  <tom@codesourcery.com>
2724
2725         PR tree-optimization/83126
2726         * tree-parloops.c (num_phis): New function.
2727         (gen_parallel_loop): Detect and handle canonicalize_loop_ivs failure.
2728
2729 2018-03-21  Nathan Sidwell  <nathan@acm.org>
2730
2731         * doc/extend.texi (Deprecated Features): Update deprecated flags,
2732         mention anon-struct/union members and trailing attributes.
2733
2734 2018-03-21  Bin Cheng  <bin.cheng@arm.com>
2735
2736         PR tree-optimization/84969
2737         * tree-loop-distribution.c (fuse_memset_builtins): Don't reorder
2738         builtin memset partitions if they set different rhs values.
2739
2740 2018-03-21  Jakub Jelinek  <jakub@redhat.com>
2741
2742         PR rtl-optimization/84989
2743         * simplify-rtx.c (simplify_unary_operation_1): Don't try to simplify
2744         VEC_DUPLICATE with scalar result mode.
2745
2746 2018-03-21  Martin Liska  <mliska@suse.cz>
2747
2748         PR ipa/84963
2749         * ipa-icf.c (sem_item_optimizer::fixup_points_to_sets): Remove
2750         not intended return statement.
2751
2752 2018-03-21  Martin Liska  <mliska@suse.cz>
2753
2754         PR target/84988
2755         * tree-chkp.c (CHKP_ARRAY_MAX_CHECK_STEPS): Define a new macro.
2756         (chkp_find_bound_slots_1): Limit number of iterations.
2757
2758 2018-03-20  David H. Gutteridge  <dhgutteridge@sympatico.ca>
2759
2760         PR target/84838
2761         * Minor grammar fixes for x86 options.
2762
2763 2018-03-20  Jakub Jelinek  <jakub@redhat.com>
2764
2765         PR debug/84875
2766         * dce.c (delete_unmarked_insns): Don't remove frame related noop moves
2767         holding REG_CFA_RESTORE notes, instead turn them into a USE.
2768
2769 2018-03-20  Peter Bergner  <bergner@vnet.ibm.com>
2770
2771         PR target/83789
2772         * config/rs6000/altivec.md (altivec_lvx_<mode>_2op): Delete define_insn.
2773         (altivec_lvx_<mode>_1op): Likewise.
2774         (altivec_stvx_<mode>_2op): Likewise.
2775         (altivec_stvx_<mode>_1op): Likewise.
2776         (altivec_lvx_<VM2:mode>): New define_expand.
2777         (altivec_stvx_<VM2:mode>): Likewise.
2778         (altivec_lvx_<VM2:mode>_2op_<P:mptrsize>): New define_insn.
2779         (altivec_lvx_<VM2:mode>_1op_<P:mptrsize>): Likewise.
2780         (altivec_stvx_<VM2:mode>_2op_<P:mptrsize>): Likewise.
2781         (altivec_stvx_<VM2:mode>_1op_<P:mptrsize>): Likewise.
2782         * config/rs6000/rs6000-p8swap.c (rs6000_gen_stvx): Use new expanders.
2783         (rs6000_gen_lvx): Likewise.
2784         * config/rs6000/rs6000.c (altivec_expand_lv_builtin): Likewise.
2785         (altivec_expand_stv_builtin): Likewise.
2786         (altivec_expand_builtin): Likewise.
2787         * config/rs6000/vector.md: Likewise.
2788
2789 2018-03-20  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
2790
2791         PR target/82518
2792         * config/arm/arm.c (arm_array_mode_supported_p): Return false for
2793         BYTES_BIG_ENDIAN.
2794
2795 2018-03-20  Richard Biener  <rguenther@suse.de>
2796
2797         PR target/84986
2798         * config/i386/i386.c (ix86_add_stmt_cost): Only cost
2799         sign-conversions as zero, fall back to standard scalar_stmt
2800         cost for the rest.
2801
2802 2018-03-20  Martin Liska  <mliska@suse.cz>
2803
2804         PR ipa/84825
2805         * predict.c (rebuild_frequencies): Handle case when we have
2806         PROFILE_ABSENT, but flag_guess_branch_prob is false.
2807
2808 2018-03-20  Jakub Jelinek  <jakub@redhat.com>
2809
2810         PR target/84990
2811         * dwarf2asm.c (dw2_output_indirect_constant_1): Temporarily turn off
2812         flag_section_anchors.
2813         * varasm.c (use_blocks_for_decl_p): Remove hack for
2814         dw2_force_const_mem.
2815
2816         PR target/84845
2817         * config/aarch64/aarch64.md (*aarch64_reg_<mode>3_neg_mask2): Rename
2818         to ...
2819         (*aarch64_<optab>_reg_<mode>3_neg_mask2): ... this.  If pseudos can't
2820         be created, use lowpart_subreg of operands[0] rather than operands[0]
2821         itself.
2822         (*aarch64_reg_<mode>3_minus_mask): Rename to ...
2823         (*aarch64_ashl_reg_<mode>3_minus_mask): ... this.
2824         (*aarch64_<optab>_reg_di3_mask2): Use const_int_operand predicate
2825         and n constraint instead of aarch64_shift_imm_di and Usd.
2826         (*aarch64_reg_<optab>_minus<mode>3): Rename to ...
2827         (*aarch64_<optab>_reg_minus<mode>3): ... this.
2828
2829 2018-03-20  Sudakshina Das  <sudi.das@arm.com>
2830
2831         PR target/82989
2832         * config/arm/neon.md (ashldi3_neon): Update ?s for constraints
2833         to favor GPR over NEON registers.
2834         (<shift>di3_neon): Likewise.
2835
2836 2018-03-20  Tom de Vries  <tom@codesourcery.com>
2837
2838         PR target/84952
2839         * config/nvptx/nvptx.c (nvptx_single): Don't neuter bar.sync.
2840         (nvptx_process_pars): Emit bar.sync asap and alap.
2841
2842 2018-03-20  Tom de Vries  <tom@codesourcery.com>
2843
2844         PR target/84954
2845         * config/nvptx/nvptx.c (prevent_branch_around_nothing): Also update
2846         seen_label if seen_label is already set.
2847
2848 2018-03-20  Jakub Jelinek  <jakub@redhat.com>
2849
2850         PR target/84945
2851         * config/i386/i386.c (fold_builtin_cpu): For features above 31
2852         use __cpu_features2 variable instead of __cpu_model.__cpu_features[0].
2853         Use 1U instead of 1.  Formatting fixes.
2854
2855         PR c/84953
2856         * builtins.c (fold_builtin_strpbrk): For strpbrk(x, "") use type
2857         instead of TREE_TYPE (s1) for the return value.
2858
2859 2018-03-19  Jakub Jelinek  <jakub@redhat.com>
2860
2861         PR tree-optimization/84946
2862         * gimple-ssa-store-merging.c (mem_valid_for_store_merging): Compute
2863         bitsize + bitsize in poly_uint64 rather than poly_int64.
2864
2865         PR sanitizer/78651
2866         * dwarf2asm.c: Include fold-const.c.
2867         (dw2_output_indirect_constant_1): Set DECL_INITIAL (decl) to ADDR_EXPR
2868         of decl rather than decl itself.
2869
2870         PR rtl-optimization/84643
2871         * memmodel.h (enum memmodel): Add MEMMODEL_MAX enumerator.
2872
2873 2018-03-19  Maxim Ostapenko  <m.ostapenko@samsung.com>
2874
2875         PR sanitizer/78651
2876         * dwarf2asm.c (dw2_output_indirect_constant_1): Disable ASan before
2877         calling assemble_variable.
2878
2879 2018-03-19  Sudakshina Das  <sudi.das@arm.com>
2880
2881         PR target/81647
2882         * config/aarch64/aarch64-simd.md (vec_cmp<mode><v_int_equiv>): Modify
2883         instructions for UNLT, UNLE, UNGT, UNGE, UNEQ, UNORDERED and ORDERED.
2884
2885 2018-03-19  Jim Wilson  <jimw@sifive.com>
2886
2887         PR bootstrap/84856
2888         * config/riscv/riscv.c (riscv_function_arg_boundary): Use
2889         PREFERRED_STACK_BOUNDARY instead of STACK_BOUNDARY.
2890         (riscv_first_stack_step): Likewise.
2891         (riscv_option_override): Use STACK_BOUNDARY instead of
2892         MIN_STACK_BOUNDARY.
2893         * config/riscv/riscv.h (STACK_BOUNDARY): Renamed from
2894         MIN_STACK_BOUNDARY.
2895         (BIGGEST_ALIGNMENT): Set to 128.
2896         (PREFERRED_STACK_BOUNDARY): Renamed from STACK_BOUNDARY.
2897         (RISCV_STACK_ALIGN): Use PREFERRED_STACK_BOUNDARY instead of
2898         STACK_BOUNDARY.
2899
2900 2018-03-19  Richard Biener  <rguenther@suse.de>
2901
2902         PR tree-optimization/84933
2903         * tree-vrp.c (set_and_canonicalize_value_range): Treat out-of-bound
2904         values as -INF/INF when canonicalizing an ANTI_RANGE to a RANGE.
2905
2906 2018-03-19  Richard Biener  <rguenther@suse.de>
2907
2908         PR tree-optimization/84859
2909         * tree-ssa-phiopt.c (single_trailing_store_in_bb): New function.
2910         (cond_if_else_store_replacement): Perform sinking operation on
2911         single-store BBs regardless of MAX_STORES_TO_SINK setting.
2912         Generalize what a BB with a single eligible store is.
2913
2914 2018-03-19  Richard Biener  <rguenther@suse.de>
2915
2916         PR tree-optimization/84929
2917         * tree-data-ref.c (analyze_siv_subscript_cst_affine): Guard
2918         chrec_is_positive against non-chrec arg.
2919
2920 2018-03-19  Tamar Christina  <tamar.christina@arm.com>
2921
2922         PR target/84711
2923         * config/arm/arm.c (arm_can_change_mode_class): revert r258554.
2924
2925 2018-03-18  Martin Liska  <mliska@suse.cz>
2926
2927         PR rtl-optimization/84635
2928         * regrename.c (build_def_use): Use matches_mode only when
2929         matches >= 0.
2930
2931 2018-03-18  Richard Sandiford  <richard.sandiford@linaro.org>
2932
2933         PR tree-optimization/84913
2934         * tree-vect-loop.c (vectorizable_reduction): Don't try to
2935         vectorize chains of COND_EXPRs.
2936
2937 2018-03-18  Chung-Ju Wu  <jasonwucj@gmail.com>
2938
2939         * config/nds32/nds32.h (MAX_REGS_PER_ADDRESS): Fix the value.
2940
2941 2018-03-18  Chung-Ju Wu  <jasonwucj@gmail.com>
2942
2943         * config/nds32/nds32.h (LOGICAL_OP_NON_SHORT_CIRCUIT): Define.
2944
2945 2018-03-18  Chung-Ju Wu  <jasonwucj@gmail.com>
2946
2947         * config/nds32/nds32.h (CLZ_DEFINED_VALUE_AT_ZERO): Define.
2948
2949 2018-03-17  Chung-Ju Wu  <jasonwucj@gmail.com>
2950             Kito Cheng  <kito.cheng@gmail.com>
2951
2952         * config/nds32/nds32-protos.h (nds32_adjust_reg_alloc_order): Declare.
2953         * config/nds32/nds32.c (nds32_reg_alloc_order_for_speed): New array.
2954         (nds32_adjust_reg_alloc_order): New function.
2955         * config/nds32/nds32.h (ADJUST_REG_ALLOC_ORDER): Define.
2956
2957 2018-03-17  Kito Cheng  <kito.cheng@gmail.com>
2958
2959         * config/nds32/nds32.c (nds32_asm_output_mi_thunk,
2960         nds32_print_operand, nds32_print_operand_address): Use
2961         HOST_WIDE_INT_PRINT_DEC instead.
2962
2963 2018-03-17  Chung-Ju Wu  <jasonwucj@gmail.com>
2964
2965         * config/nds32/nds32.c (nds32_register_priority): Modify cost.
2966
2967 2018-03-17  Jakub Jelinek  <jakub@redhat.com>
2968
2969         PR target/84902
2970         * config/i386/i386.c (initial_ix86_tune_features,
2971         initial_ix86_arch_features): Use unsigned HOST_WIDE_INT rather than
2972         unsigned long long.
2973         (set_ix86_tune_features): Change ix86_tune_mask from unsigned int
2974         to unsigned HOST_WIDE_INT, initialize to HOST_WIDE_INT_1U << ix86_tune
2975         rather than 1u << ix86_tune.  Formatting fix.
2976         (ix86_option_override_internal): Change ix86_arch_mask from
2977         unsigned int to unsigned HOST_WIDE_INT, initialize to
2978         HOST_WIDE_INT_1U << ix86_arch rather than 1u << ix86_arch.
2979         (ix86_function_specific_restore): Likewise.
2980
2981 2018-03-16  Jakub Jelinek  <jakub@redhat.com>
2982
2983         PR target/84899
2984         * postreload.c (reload_combine_recognize_pattern): Perform
2985         INTVAL addition in unsigned HOST_WIDE_INT type to avoid UB and
2986         truncate_int_for_mode the result for the destination's mode.
2987
2988         PR c/84909
2989         * hsa-gen.c (mem_type_for_type): Fix comment typo.
2990         * tree-vect-loop-manip.c (vect_create_cond_for_niters_checks):
2991         Likewise.
2992         * gimple-ssa-warn-restrict.c (builtin_memref::set_base_and_offset):
2993         Likewise.
2994
2995 2018-03-16  Vladimir Makarov  <vmakarov@redhat.com>
2996
2997         PR target/84876
2998         * lra-assigns.c (lra_split_hard_reg_for): Don't use
2999         regno_allocno_class_array and sorted_pseudos.
3000         * lra-constraints.c (spill_hard_reg_in_range): Ignore hard regs in
3001         insns where regno is used.
3002
3003 2018-03-16  Martin Liska  <mliska@suse.cz>
3004
3005         PR ipa/84833
3006         * multiple_target.c (create_dispatcher_calls): Redirect
3007         reference in the symbol table.
3008
3009 2018-03-16  Martin Liska  <mliska@suse.cz>
3010
3011         PR ipa/84722
3012         * multiple_target.c (create_dispatcher_calls): Redirect also
3013         an alias.
3014
3015 2018-03-16  Jakub Jelinek  <jakub@redhat.com>
3016
3017         PR c++/79937
3018         PR c++/82410
3019         * tree.h (TARGET_EXPR_NO_ELIDE): Define.
3020         * gimplify.c (gimplify_modify_expr_rhs): Don't elide TARGET_EXPRs with
3021         TARGET_EXPR_NO_ELIDE flag set unless *expr_p is INIT_EXPR.
3022
3023 2018-03-16  Julia Koval  <julia.koval@intel.com>
3024
3025         * doc/invoke.texi (Skylake Server): Add CLWB.
3026         Cannonlake): Remove CLWB.
3027
3028 2018-03-16  Jakub Jelinek  <jakub@redhat.com>
3029
3030         PR tree-optimization/84841
3031         * tree-ssa-reassoc.c (INTEGER_CONST_TYPE): Change to 1 << 4 from
3032         1 << 3.
3033         (FLOAT_ONE_CONST_TYPE): Define.
3034         (constant_type): Return FLOAT_ONE_CONST_TYPE for -1.0 and 1.0.
3035         (sort_by_operand_rank): Put entries with higher constant_type last
3036         rather than first to match comments.
3037
3038 2018-03-15  Sandra Loosemore  <sandra@codesourcery.com>
3039
3040         * config/nios2/nios2.md (movsi_internal): Fix thinko in
3041         split predicate.
3042
3043 2018-03-15  Jakub Jelinek  <jakub@redhat.com>
3044
3045         PR c++/79085
3046         * calls.c (expand_call): For TREE_ADDRESSABLE rettype ignore alignment
3047         check and use address of target always.
3048
3049 2018-03-15  H.J. Lu  <hongjiu.lu@intel.com>
3050
3051         PR target/84574
3052         * config/i386/i386.c (indirect_thunk_needed): Update comments.
3053         (indirect_thunk_bnd_needed): Likewise.
3054         (indirect_thunks_used): Likewise.
3055         (indirect_thunks_bnd_used): Likewise.
3056         (indirect_return_needed): New.
3057         (indirect_return_bnd_needed): Likewise.
3058         (output_indirect_thunk_function): Add a bool argument for
3059         function return.
3060         (output_indirect_thunk_function): Don't generate alias for
3061         function return thunk.
3062         (ix86_code_end): Call output_indirect_thunk_function to generate
3063         function return thunks.
3064         (ix86_output_function_return): Set indirect_return_bnd_needed
3065         and indirect_return_needed instead of indirect_thunk_bnd_needed
3066         and indirect_thunk_needed.
3067
3068 2018-03-15  Olga Makhotina  <olga.makhotina@intel.com>
3069
3070         * config/i386/sgxintrin.h (_enclv_u32): New intrinsic.
3071         (__enclv_bc, __enclv_cd, __enclv_generic): New definitions.
3072         (ERDINFO, ETRACKC, ELDBC, ELDUC): New leaves.
3073
3074 2018-03-15  David Malcolm  <dmalcolm@redhat.com>
3075             Paul Hua <paul.hua.gm@gmail.com>
3076
3077         PR c/84852
3078         * gcc.dg/fixits-pr84852-1.c: Fix filename in dg-regexp.
3079
3080 2018-03-15  Segher Boessenkool  <segher@kernel.crashing.org>
3081
3082         * config/rs6000/rs6000.c (abi_v4_pass_in_fpr): Add back the
3083         TARGET_DOUBLE_FLOAT and TARGET_SINGLE_FLOAT conditions on the DFmode
3084         resp. SFmode cases.
3085
3086 2018-03-15  Tamar Christina  <tamar.christina@arm.com>
3087
3088         PR target/84711
3089         * config/arm/arm.c (arm_can_change_mode_class): Use GET_MODE_UNIT_SIZE
3090         instead of GET_MODE_SIZE when comparing Units.
3091
3092 2018-03-15  Vladimir Mezentsev  <vladimir.mezentsev@oracle.com>
3093
3094         PR target/68256
3095         * varasm.c (hash_section): Return an unchangeble hash value
3096         * config/aarch64/aarch64.c (aarch64_use_blocks_for_constant_p):
3097         Return !aarch64_can_use_per_function_literal_pools_p ().
3098
3099 2018-03-15  Jakub Jelinek  <jakub@redhat.com>
3100
3101         PR target/84860
3102         * optabs.c (emit_conditional_move): Pass address of cmode's copy
3103         rather than address of cmode as last argument to prepare_cmp_insn.
3104
3105 2018-03-15  Julia Koval  <julia.koval@intel.com>
3106
3107         * config/i386/i386.c (F_AVX512VBMI2, F_GFNI, F_VPCLMULQDQ,
3108         F_AVX512VNNI, F_AVX512BITALG): New.
3109
3110 2018-03-14  John David Anglin  <danglin@gcc.gnu.org>
3111
3112         PR target/83451
3113         * config/pa/pa.c (pa_emit_move_sequence):  Always emit secondary reload
3114         insn for floating-point loads and stores.
3115
3116 2018-03-14  Carl Love  <cel@us.ibm.com>
3117
3118         * config/rs6000/rs6000-c.c: Add macro definitions for
3119         ALTIVEC_BUILTIN_VEC_PERMXOR.
3120         * config/rs6000/rs6000.h: Add #define for vec_permxor builtin.
3121         * config/rs6000/rs6000-builtin.def: Add macro expansions for VPERMXOR.
3122         * config/rs6000/altivec.md (altivec_vpermxor): New define expand.
3123         * config/rs6000/rs6000-p8swap.c (rtx_is_swappable_p): Add case
3124         UNSPEC_VPERMXOR.
3125         * config/doc/extend.texi: Add prototypes for vec_permxor.
3126
3127 2018-03-14  David Malcolm  <dmalcolm@redhat.com>
3128
3129         PR c/84852
3130         * diagnostic-show-locus.c (class layout_point): Convert m_line
3131         from int to linenum_type.
3132         (line_span::comparator): Use linenum "compare" function when
3133         comparing line numbers.
3134         (test_line_span): New function.
3135         (layout_range::contains_point): Convert param "row" from int to
3136         linenum_type.
3137         (layout_range::intersects_line_p): Likewise.
3138         (layout::will_show_line_p): Likewise.
3139         (layout::print_source_line): Likewise.
3140         (layout::should_print_annotation_line_p): Likewise.
3141         (layout::print_annotation_line): Likewise.
3142         (layout::print_leading_fixits): Likewise.
3143         (layout::annotation_line_showed_range_p): Likewise.
3144         (struct line_corrections): Likewise for field m_row.
3145         (line_corrections::line_corrections): Likewise for param "row".
3146         (layout::print_trailing_fixits): Likewise.
3147         (layout::get_state_at_point): Likewise.
3148         (layout::get_x_bound_for_row): Likewise.
3149         (layout::print_line): Likewise.
3150         (diagnostic_show_locus): Likewise for locals "last_line" and
3151         "row".
3152         (selftest::diagnostic_show_locus_c_tests): Call test_line_span.
3153         * input.c (selftest::test_linenum_comparisons): New function.
3154         (selftest::input_c_tests): Call it.
3155         * selftest.c (selftest::test_assertions): Test ASSERT_GT,
3156         ASSERT_GT_AT, ASSERT_LT, and ASSERT_LT_AT.
3157         * selftest.h (ASSERT_GT): New macro.
3158         (ASSERT_GT_AT): New macro.
3159         (ASSERT_LT): New macro.
3160         (ASSERT_LT_AT): New macro.
3161
3162 2018-03-14  Segher Boessenkool  <segher@kernel.crashing.org>
3163
3164         PR rtl-optimization/84780
3165         * combine.c (distribute_links): Don't make a link based on pc_rtx.
3166
3167 2018-03-14  Martin Liska  <mliska@suse.cz>
3168
3169         * tree.c (record_node_allocation_statistics): Use
3170         get_stats_node_kind.
3171         (get_stats_node_kind): New function extracted from
3172         record_node_allocation_statistics.
3173         (free_node): Use get_stats_node_kind.
3174
3175 2018-03-14  Richard Biener  <rguenther@suse.de>
3176
3177         * tree-ssa-pre.c (compute_antic_aux): Remove code that asserts
3178         that the value-set of ANTIC_IN doesn't grow.
3179
3180         Revert
3181         * tree-ssa-pre.c (struct bb_bitmap_sets): Add visited_with_visited_succs
3182         member.
3183         (BB_VISITED_WITH_VISITED_SUCCS): New define.
3184         (compute_antic): Initialize BB_VISITED_WITH_VISITED_SUCCS.
3185
3186 2018-03-14  Julia Koval  <julia.koval@intel.com>
3187
3188         * config.gcc (icelake-client, icelake-server): New.
3189         (icelake): Remove.
3190         * config/i386/i386.c (initial_ix86_tune_features): Extend to 64 bit.
3191         (initial_ix86_arch_features): Ditto.
3192         (PTA_SKYLAKE): Add SGX.
3193         (PTA_ICELAKE): Remove.
3194         (PTA_ICELAKE_CLIENT): New.
3195         (PTA_ICELAKE_SERVER): New.
3196         (ix86_option_override_internal): Split up icelake on icelake client and
3197         icelake server.
3198         (get_builtin_code_for_version): Ditto.
3199         (fold_builtin_cpu): Ditto.
3200         * config/i386/driver-i386.c (config/i386/driver-i386.c): Ditto.
3201         * config/i386/i386-c.c (ix86_target_macros_internal): Ditto
3202         * config/i386/i386.h (processor_type): Ditto.
3203         * doc/invoke.texi: Ditto.
3204
3205 2018-03-14  Jakub Jelinek  <jakub@redhat.com>
3206
3207         PR sanitizer/83392
3208         * sanopt.c (maybe_optimize_ubsan_ptr_ifn): Handle also
3209         INTEGER_CST offset, add it together with bitpos / 8 and
3210         sign extend based on POINTER_SIZE.
3211
3212         PR target/84844
3213         Revert
3214         2017-04-20  Uros Bizjak  <ubizjak@gmail.com>
3215
3216         PR target/78090
3217         * config/i386/constraints.md (Yc): New register constraint.
3218         * config/i386/i386.md (*float<SWI48:mode><MODEF:mode>2_mixed):
3219         Use Yc constraint for alternative 2 of operand 0.  Remove
3220         preferred_for_speed attribute.
3221
3222 2018-03-14  Richard Biener  <rguenther@suse.de>
3223
3224         PR tree-optimization/84830
3225         * tree-ssa-pre.c (compute_antic_aux): Intersect the new ANTIC_IN
3226         with the old one to avoid oscillations.
3227
3228 2018-03-13  Vladimir Makarov  <vmakarov@redhat.com>
3229
3230         PR target/83712
3231         * lra-assigns.c (find_all_spills_for): Ignore uninteresting
3232         pseudos.
3233         (assign_by_spills): Return a flag of reload assignment failure.
3234         Do not process the reload assignment failures.  Do not spill other
3235         reload pseudos if they has the same reg class.  Update n if
3236         necessary.
3237         (lra_assign): Add a return arg.  Set up from the result of
3238         assign_by_spills call.
3239         (find_reload_regno_insns, lra_split_hard_reg_for): New functions.
3240         * lra-constraints.c (split_reg): Add a new arg.  Use it instead of
3241         usage_insns if it is not NULL.
3242         (spill_hard_reg_in_range): New function.
3243         (split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
3244         * lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
3245         function prototypes.
3246         (lra_assign): Change prototype.
3247         * lra.c (lra): Add code to deal with fails by splitting hard reg
3248         live ranges.
3249
3250 2018-03-01  Palmer Dabbelt  <palmer@sifive.com>
3251
3252         * config/riscv/riscv.opt (mrelax): New option.
3253         * config/riscv/riscv.c (riscv_file_start): Emit ".option
3254         "norelax" when riscv_mrelax is disabled.
3255         * doc/invoke.texi (RISC-V): Document "-mrelax" and "-mno-relax".
3256
3257 2018-03-13  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
3258
3259         PR target/84743
3260         * config/rs6000/rs6000.c (rs6000_reassociation_width): Disable parallel
3261         reassociation for int modes.
3262
3263 2018-03-13  Richard Sandiford  <richard.sandiford@linaro.org>
3264
3265         * tree-vect-loop-manip.c (vect_maybe_permute_loop_masks):
3266         Reverse the choice between VEC_UNPACK_LO_EXPR and VEC_UNPACK_HI_EXPR
3267         for big-endian.
3268         * config/aarch64/iterators.md (hi_lanes_optab): New int attribute.
3269         * config/aarch64/aarch64-sve.md
3270         (*aarch64_sve_<perm_insn><perm_hilo><mode>): Rename to...
3271         (aarch64_sve_<perm_insn><perm_hilo><mode>): ...this.
3272         (*extend<mode><Vwide>2): Rename to...
3273         (aarch64_sve_extend<mode><Vwide>2): ...this.
3274         (vec_unpack<su>_<perm_hilo>_<mode>): Turn into a define_expand,
3275         renaming the old pattern to...
3276         (aarch64_sve_punpk<perm_hilo>_<mode>): ...this.  Only define
3277         unsigned packs.
3278         (vec_unpack<su>_<perm_hilo>_<SVE_BHSI:mode>): Turn into a
3279         define_expand, renaming the old pattern to...
3280         (aarch64_sve_<su>unpk<perm_hilo>_<SVE_BHSI:mode>): ...this.
3281         (*vec_unpacku_<perm_hilo>_<mode>_no_convert): Delete.
3282         (vec_unpacks_<perm_hilo>_<mode>): Take BYTES_BIG_ENDIAN into
3283         account when deciding which SVE instruction the optab should use.
3284         (vec_unpack<su_optab>_float_<perm_hilo>_vnx4si): Likewise.
3285
3286 2018-03-13  Richard Sandiford  <richard.sandiford@linaro.org>
3287
3288         * config/aarch64/aarch64.md (V4_REGNUM, V8_REGNUM, V12_REGNUM)
3289         (V20_REGNUM, V24_REGNUM, V28_REGNUM, P1_REGNUM, P2_REGNUM, P3_REGNUM)
3290         (P4_REGNUM, P5_REGNUM, P6_REGNUM, P8_REGNUM, P9_REGNUM, P10_REGNUM)
3291         (P11_REGNUM, P12_REGNUM, P13_REGNUM, P14_REGNUM): New define_constants.
3292         (tlsdesc_small_<mode>): Turn a define_expand and use
3293         tlsdesc_small_sve_<mode> for SVE.  Rename original define_insn to...
3294         (tlsdesc_small_advsimd_<mode>): ...this.
3295         (tlsdesc_small_sve_<mode>): New pattern.
3296
3297 2018-03-13  Richard Sandiford  <richard.sandiford@linaro.org>
3298
3299         * config/aarch64/iterators.md (UNSPEC_SMUL_HIGHPART)
3300         (UNSPEC_UMUL_HIGHPART): New constants.
3301         (MUL_HIGHPART): New int iteraor.
3302         (su): Handle UNSPEC_SMUL_HIGHPART and UNSPEC_UMUL_HIGHPART.
3303         * config/aarch64/aarch64-sve.md (<su>mul<mode>3_highpart): New
3304         define_expand.
3305         (*<su>mul<mode>3_highpart): New define_insn.
3306
3307 2018-03-13  Eric Botcazou  <ebotcazou@adacore.com>
3308
3309         PR lto/84805
3310         * ipa-devirt.c (odr_subtypes_equivalent_p): Do not get the ODR type of
3311         incomplete types.
3312
3313 2018-03-13  Martin Liska  <mliska@suse.cz>
3314
3315         PR ipa/84658.
3316         * (sem_item_optimizer::sem_item_optimizer): Initialize new
3317         vector.
3318         (sem_item_optimizer::~sem_item_optimizer): Release it.
3319         (sem_item_optimizer::merge_classes): Register variable aliases.
3320         (sem_item_optimizer::fixup_pt_set): New function.
3321         (sem_item_optimizer::fixup_points_to_sets): Likewise.
3322         * ipa-icf.h: Declare new variables and functions.
3323
3324 2018-03-13  Jakub Jelinek  <jakub@redhat.com>
3325
3326         PR middle-end/84834
3327         * match.pd ((A & C) != 0 ? D : 0): Use INTEGER_CST@2 instead of
3328         integer_pow2p@2 and test integer_pow2p in condition.
3329         (A < 0 ? C : 0): Similarly for @1.
3330
3331         PR middle-end/84831
3332         * stmt.c (parse_output_constraint): If the CONSTRAINT_LEN (*p, p)
3333         characters starting at p contain '\0' character, don't look beyond
3334         that.
3335
3336         PR target/84827
3337         * config/i386/i386.md (round<mode>2): For 387 fancy math, disable
3338         pattern if -ftrapping-math -fno-fp-int-builtin-inexact.
3339
3340         PR target/84828
3341         * reg-stack.c (change_stack): Change update_end var from int to
3342         rtx_insn *, if non-NULL don't update just BB_END (current_block), but
3343         also call set_block_for_insn on the newly added insns and rescan.
3344
3345         PR target/84786
3346         * config/i386/sse.md (sse2_loadhpd): Use Yv constraint rather than v
3347         on the last operand.
3348
3349         PR c++/84704
3350         * tree.c (stabilize_reference_1): Return save_expr (e) for
3351         STATEMENT_LIST even if it doesn't have side-effects.
3352
3353 2018-03-12  Jonathan Wakely  <jwakely@redhat.com>
3354
3355         * doc/invoke.texi (-mclflushopt): Fix spelling of option.
3356
3357 2018-03-12  Renlin Li  <renlin.li@arm.com>
3358
3359         * config/aarch64/aarch64.md (movhf_aarch64): Fix mode argument to
3360         aarch64_output_scalar_simd_mov_immediate.
3361
3362 2018-03-12  Martin Sebor  <msebor@redhat.com>
3363
3364         PR tree-optimization/83456
3365         * gimple-fold.c (gimple_fold_builtin_memory_op): Avoid warning
3366         for perfectly overlapping calls to memcpy.
3367         (gimple_fold_builtin_memory_chk): Same.
3368         (gimple_fold_builtin_strcpy): Handle no-warning.
3369         (gimple_fold_builtin_stxcpy_chk): Same.
3370         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Handle no-warning.
3371
3372 2018-03-12  Segher Boessenkool  <segher@kernel.crashing.org>
3373
3374         * config/rs6000/rs6000.c (abi_v4_pass_in_fpr): Add bool "named"
3375         parameter.  Use it for SFmode.
3376         (rs6000_function_arg_advance_1): Adjust.
3377         (rs6000_function_arg): Adjust.
3378         (rs6000_gimplify_va_arg): Pass false for that new parameter.
3379
3380 2018-03-12  Segher Boessenkool  <segher@kernel.crashing.org>
3381
3382         PR rtl-optimization/84169
3383         PR rtl-optimization/84780
3384         * combine.c (can_combine_p): Check for a 2-insn combination whether
3385         the destination register is used between the two insns, too.
3386
3387 2018-03-12  Richard Biener  <rguenther@suse.de>
3388
3389         PR tree-optimization/84803
3390         * tree-if-conv.c (ifcvt_memrefs_wont_trap): Don't do anything
3391         for refs DR analysis didn't process.
3392
3393 2018-03-12  Richard Biener  <rguenther@suse.de>
3394
3395         PR tree-optimization/84777
3396         * tree-ssa-loop-ch.c (should_duplicate_loop_header_p): For
3397         force-vectorize loops ignore whether we are optimizing for size.
3398
3399 2018-03-12  Chung-Ju Wu  <jasonwucj@gmail.com>
3400
3401         * config/nds32/nds32.c (nds32_md_asm_adjust): New function.
3402         (TARGET_MD_ASM_ADJUST): Define.
3403
3404 2018-03-12  Monk Chiang  <sh.chiang04@gmail.com>
3405             Kito Cheng  <kito.cheng@gmail.com>
3406             Chung-Ju Wu  <jasonwucj@gmail.com>
3407
3408         * config/nds32/nds32.c (nds32_compute_stack_frame,
3409         nds32_emit_stack_push_multiple, nds32_emit_stack_pop_multiple,
3410         nds32_emit_stack_v3push, nds32_emit_stack_v3pop,
3411         nds32_emit_adjust_frame, nds32_expand_prologue, nds32_expand_epilogue,
3412         nds32_expand_prologue_v3push, nds32_expand_epilogue_v3pop): Refine.
3413         * config/nds32/nds32.h (NDS32_FIRST_CALLEE_SAVE_GPR_REGNUM,
3414         NDS32_LAST_CALLEE_SAVE_GPR_REGNUM, NDS32_V3PUSH_AVAILABLE_P): New.
3415         * config/nds32/nds32.md (prologue, epilogue): Use macro
3416         NDS32_V3PUSH_AVAILABLE_P to do checking.
3417
3418 2018-03-11  Jakub Jelinek  <jakub@redhat.com>
3419
3420         PR debug/58150
3421         * dwarf2out.c (gen_enumeration_type_die): Don't guard adding
3422         DW_AT_declaration for ENUM_IS_OPAQUE on -gdwarf-4 or -gno-strict-dwarf,
3423         but on TYPE_SIZE.  Don't do anything for ENUM_IS_OPAQUE if not creating
3424         a new die.  Don't set TREE_ASM_WRITTEN if ENUM_IS_OPAQUE.  Guard
3425         addition of most attributes on !orig_type_die or the attribute not
3426         being present already.  Assert TYPE_VALUES is NULL for ENUM_IS_OPAQUE.
3427
3428 2018-03-11  Kito Cheng  <kito.cheng@gmail.com>
3429             Chung-Ju Wu  <jasonwucj@gmail.com>
3430
3431         * config/nds32/nds32.c (nds32_cpu_cpp_builtins): Modify to define
3432         __NDS32_VH__ macro.
3433         * config/nds32/nds32.opt (mvh): New option.
3434
3435 2018-03-11  Kito Cheng  <kito.cheng@gmail.com>
3436             Chung-Ju Wu  <jasonwucj@gmail.com>
3437
3438         * config/nds32/nds32-protos.h (nds32_cpu_cpp_builtins): Declare
3439         function.
3440         * config/nds32/nds32.c (nds32_cpu_cpp_builtins): New function.
3441         * config/nds32/nds32.h (TARGET_CPU_CPP_BUILTINS): Modify its
3442         definition.
3443
3444 2018-03-11  Kito Cheng  <kito.cheng@gmail.com>
3445             Chung-Ju Wu  <jasonwucj@gmail.com>
3446
3447         * config/nds32/nds32-memory-manipulation.c (nds32_expand_strlen): New
3448         function.
3449         * config/nds32/nds32-multiple.md (strlensi): New pattern.
3450         * config/nds32/nds32-protos.h (nds32_expand_strlen): Declare function.
3451
3452 2018-03-11  Monk Chiang  <sh.chiang04@gmail.com>
3453             Kito Cheng  <kito.cheng@gmail.com>
3454             Chung-Ju Wu  <jasonwucj@gmail.com>
3455
3456         * config/nds32/constants.md (unspec_element): Add UNSPEC_FFB,
3457         UNSPEC_FFMISM and UNSPEC_FLMISM.
3458         * config/nds32/nds32-intrinsic.c (bdesc_2arg): Add builtin description
3459         for ffb, ffmism and flmism.
3460         * config/nds32/nds32-intrinsic.md (unspec_ffb): Define new pattern.
3461         (unspec_ffmism): Ditto.
3462         (unspec_flmism): Ditto.
3463         (nds32_expand_builtin_impl): Check if string extension is available.
3464         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_FFB,
3465         NDS32_BUILTIN_FFMISM and NDS32_BUILTIN_FLMISM.
3466
3467 2018-03-10  Vladimir Makarov  <vmakarov@redhat.com>
3468
3469         Reverting patch:
3470         2018-03-09  Vladimir Makarov  <vmakarov@redhat.com>
3471
3472         PR target/83712
3473         * lra-assigns.c (assign_by_spills): Return a flag of reload
3474         assignment failure.  Do not process the reload assignment
3475         failures.  Do not spill other reload pseudos if they has the same
3476         reg class.
3477         (lra_assign): Add a return arg.  Set up from the result of
3478         assign_by_spills call.
3479         (find_reload_regno_insns, lra_split_hard_reg_for): New functions.
3480         * lra-constraints.c (split_reg): Add a new arg.  Use it instead of
3481         usage_insns if it is not NULL.
3482         (spill_hard_reg_in_range): New function.
3483         (split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
3484         * lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
3485         function prototypes.
3486         (lra_assign): Change prototype.
3487         * lra.c (lra): Add code to deal with fails by splitting hard reg
3488         live ranges.
3489
3490 2018-03-10  H.J. Lu  <hongjiu.lu@intel.com>
3491
3492         PR target/84807
3493         * config/i386/i386.opt: Replace Enforcment with Enforcement.
3494
3495 2018-03-10  Alexandre Oliva  <aoliva@redhat.com>
3496
3497         PR debug/84620
3498         * dwarf2out.h (dw_val_class): Add dw_val_class_symview.
3499         (dw_val_node): Add val_symbolic_view.
3500         * dwarf2out.c (dw_line_info_table): Add symviews_since_reset.
3501         (symview_upper_bound): New.
3502         (new_line_info_table): Initialize symviews_since_reset.
3503         (dwarf2out_source_line): Count symviews_since_reset and set
3504         symview_upper_bound.
3505         (dw_val_equal_p): Handle symview.
3506         (add_AT_symview): New.
3507         (print_dw_val): Handle symview.
3508         (attr_checksum, attr_checksum_ordered): Likewise.
3509         (same_dw_val_p, size_of_die): Likewise.
3510         (value_format, output_die): Likewise.
3511         (add_high_low_attributes): Use add_AT_symview for entry_view.
3512         (dwarf2out_finish): Reset symview_upper_bound, clear
3513         zero_view_p.
3514
3515 2018-03-09  Peter Bergner  <bergner@vnet.ibm.com>
3516
3517         PR target/83969
3518         * config/rs6000/rs6000.c (rs6000_offsettable_memref_p): New prototype.
3519         Add strict argument and use it.
3520         (rs6000_split_multireg_move): Update for new strict argument.
3521         (mem_operand_gpr): Disallow all non-offsettable addresses.
3522         * config/rs6000/rs6000.md (*movdi_internal64): Use YZ constraint.
3523
3524 2018-03-09  Jakub Jelinek  <jakub@redhat.com>
3525
3526         PR target/84772
3527         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Mark va_arg_tmp
3528         temporary TREE_ADDRESSABLE before gimplification of BUILT_IN_MEMCPY.
3529         * config/powerpcspe/powerpcspe.c (rs6000_gimplify_va_arg): Likewise.
3530
3531         PR c++/84767
3532         * tree-inline.c (copy_tree_body_r): For INDIRECT_REF of a remapped
3533         decl, use remap_type if we want to use the type.
3534
3535 2018-03-09  Martin Sebor  <msebor@redhat.com>
3536
3537         PR tree-optimization/84526
3538         * gimple-ssa-warn-restrict.c (builtin_memref::set_base_and_offset):
3539         Remove dead code.
3540         (builtin_access::generic_overlap): Be prepared to handle non-array
3541         base objects.
3542
3543 2018-03-09  Alexandre Oliva  <aoliva@redhat.com>
3544
3545         PR rtl-optimization/84682
3546         * lra-constraints.c (process_address_1): Check is_address flag
3547         for address constraints.
3548         (process_alt_operands): Likewise.
3549         * lra.c (lra_set_insn_recog_data): Pass asm operand locs to
3550         preprocess_constraints.
3551         * recog.h (preprocess_constraints): Add oploc parameter.
3552         Adjust callers.
3553         * recog.c (preprocess_constraints): Test address_operand for
3554         CT_ADDRESS constraints.
3555
3556 2018-03-09  Vladimir Makarov  <vmakarov@redhat.com>
3557
3558         PR target/83712
3559         * lra-assigns.c (assign_by_spills): Return a flag of reload
3560         assignment failure.  Do not process the reload assignment
3561         failures.  Do not spill other reload pseudos if they has the same
3562         reg class.
3563         (lra_assign): Add a return arg.  Set up from the result of
3564         assign_by_spills call.
3565         (find_reload_regno_insns, lra_split_hard_reg_for): New functions.
3566         * lra-constraints.c (split_reg): Add a new arg.  Use it instead of
3567         usage_insns if it is not NULL.
3568         (spill_hard_reg_in_range): New function.
3569         (split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
3570         * lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
3571         function prototypes.
3572         (lra_assign): Change prototype.
3573         * lra.c (lra): Add code to deal with fails by splitting hard reg
3574         live ranges.
3575
3576 2018-03-09  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
3577
3578         PR target/83193
3579         * common/config/arm/arm-common.c (arm_parse_arch_option_name):
3580         Accept complain bool parameter.  Only emit errors if it is true.
3581         (arm_parse_cpu_option_name): Likewise.
3582         (arm_target_thumb_only): Adjust callers of the above.
3583         * config/arm/arm-protos.h (arm_parse_cpu_option_name): Adjust
3584         prototype to take a default true bool parameter.
3585         (arm_parse_arch_option_name): Likewise.
3586
3587 2018-03-09  David Malcolm  <dmalcolm@redhat.com>
3588             Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
3589
3590         PR jit/64089
3591         PR jit/84288
3592         * Makefile.in (LD_VERSION_SCRIPT_OPTION, LD_SONAME_OPTION): New.
3593         * configure: Regenerate.
3594         * configure.ac ("linker --version-script option"): New.
3595         ("linker soname option"): New.
3596
3597 2018-03-09  Richard Biener  <rguenther@suse.de>
3598
3599         PR tree-optimization/84775
3600         * tree-if-conv.c (add_bb_predicate_gimplified_stmts): Delink
3601         immediate uses of predicate stmts and mark them modified.
3602
3603         Revert
3604         PR tree-optimization/84178
3605         * tree-if-conv.c (combine_blocks): Move insert_gimplified_predicates
3606         to caller.
3607         (version_loop_for_if_conversion): Delay update_ssa call.
3608         (tree_if_conversion): Delay update_ssa until after predicate
3609         insertion.
3610
3611 2018-03-09  Eric Botcazou  <ebotcazou@adacore.com>
3612
3613         PR target/84763
3614         * config/i386/winnt.c (i386_pe_seh_cold_init): Use small pre-allocation
3615         when the function accesses prior frames.
3616
3617 2018-03-08  Jakub Jelinek  <jakub@redhat.com>
3618
3619         PR debug/84456
3620         * dwarf2out.c (dw_loc_list): If list && loc_list->first->next, call
3621         gen_llsym, otherwise call maybe_gen_llsym.
3622
3623         PR inline-asm/84742
3624         * recog.c (asm_operand_ok): Return 0 if multi-character constraint
3625         has ',' character inside of it.
3626
3627 2018-03-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
3628
3629         PR target/84748
3630         * config/aarch64/aarch64.md (*compare_cstore<mode>_insn): Mark pattern
3631         as clobbering CC_REGNUM.
3632
3633 2018-03-08  Richard Biener  <rguenther@suse.de>
3634
3635         PR middle-end/84552
3636         * tree-scalar-evolution.c: Include tree-into-ssa.h.
3637         (follow_copies_to_constant): Do not follow SSA names registered
3638         for update.
3639
3640 2018-03-08  Richard Biener  <rguenther@suse.de>
3641
3642         PR tree-optimization/84178
3643         * tree-if-conv.c (combine_blocks): Move insert_gimplified_predicates
3644         to caller.
3645         (version_loop_for_if_conversion): Delay update_ssa call.
3646         (tree_if_conversion): Delay update_ssa until after predicate
3647         insertion.
3648
3649 2018-03-08  David Malcolm  <dmalcolm@redhat.com>
3650
3651         PR tree-optimization/84178
3652         * tree-if-conv.c (release_bb_predicate): Remove the
3653         the assertion that the stmts have NULL use_ops.
3654         Discard the statements, asserting that they haven't
3655         yet been added to a BB.
3656
3657 2018-03-08  Richard Biener  <rguenther@suse.de>
3658
3659         PR tree-optimization/84746
3660         * tree-ssa-pre.c (find_leader_in_sets): Deal with SET1 being NULL.
3661         (phi_translate): Pass in destination ANTIC_OUT set.
3662         (phi_translate_1): Likewise.  For a simplified result lookup
3663         a leader in ANTIC_OUT and AVAIL_OUT, not the ANTIC_IN sets.
3664         (phi_translate_set): Adjust.
3665         (do_pre_regular_insertion): Likewise.
3666         (do_pre_partial_partial_insertion): Likewise.
3667
3668 2018-03-08  Martin Liska  <mliska@suse.cz>
3669
3670         PR gcov-profile/84735
3671         * doc/gcov.texi: Document usage of profile files.
3672         * gcov-io.h: Document changes in the format.
3673
3674 2018-03-08  Alexandre Oliva  <aoliva@redhat.com>
3675
3676         PR debug/84404
3677         PR debug/84408
3678         * dwarf2out.c (struct dw_line_info_table): Update comments for
3679         view == -1.
3680         (FORCE_RESET_NEXT_VIEW): New.
3681         (FORCE_RESETTING_VIEW_P): New.
3682         (RESETTING_VIEW_P): Check for -1 too.
3683         (ZERO_VIEW_P): Likewise.
3684         (new_line_info_table): Force-reset next view.
3685         (dwarf2out_begin_function): Likewise.
3686         (dwarf2out_source_line): Simplify zero_view_p initialization.
3687         Test FORCE_RESETTING_VIEW_P and RESETTING_VIEW_P instead of
3688         view directly.  Omit view when omitting .loc at line 0.
3689
3690 2018-03-08  Jakub Jelinek  <jakub@redhat.com>
3691
3692         PR tree-optimization/84740
3693         * tree-switch-conversion.c (process_switch): Call build_constructors
3694         only if info.phi_count is non-zero.
3695
3696         PR tree-optimization/84739
3697         * tree-tailcall.c (find_tail_calls): Check call arguments against
3698         DECL_ARGUMENTS (current_function_decl) rather than
3699         DECL_ARGUMENTS (func) when checking for tail recursion.
3700
3701 2018-03-07  Jakub Jelinek  <jakub@redhat.com>
3702
3703         * doc/contrib.texi: Add entries for Martin Liska, David Malcolm,
3704         Marek Polacek, extend Vladimir Makarov's, Jonathan Wakely's and
3705         Volker Reichelt's entry and add entries for people that perform
3706         GCC fuzzy testing and report numerous bugs.
3707
3708 2018-03-07  Segher Boessenkool  <segher@kernel.crashing.org>
3709
3710         PR target/82411
3711         * config/rs6000/rs6000.c (rs6000_elf_in_small_data_p): Don't put
3712         readonly data in sdata, if that is disabled.
3713         * config/rs6000/sysv4.opt (mreadonly-in-sdata): New option.
3714         * doc/invoke.texi (RS/6000 and PowerPC Options): Document
3715         -mreadonly-in-sdata option.
3716
3717 2018-03-07  Martin Sebor  <msebor@redhat.com>
3718
3719         PR tree-optimization/84468
3720         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Consider successor
3721         basic block when looking for nul assignment.
3722
3723 2018-03-07  Eric Botcazou  <ebotcazou@adacore.com>
3724
3725         PR target/84277
3726         * except.h (output_function_exception_table): Adjust prototype.
3727         * except.c (output_function_exception_table): Remove FNNAME parameter
3728         and add SECTION parameter.  Ouput one part of the table at a time.
3729         * final.c (final_scan_insn_1) <NOTE_INSN_SWITCH_TEXT_SECTIONS>: Output
3730         the first part of the exception table and emit unwind directives.
3731         * config/i386/i386-protos.h (i386_pe_end_cold_function): Declare.
3732         (i386_pe_seh_cold_init): Likewise.
3733         * config/i386/cygming.h (ASM_DECLARE_COLD_FUNCTION_NAME): New macro.
3734         (ASM_DECLARE_COLD_FUNCTION_SIZE): Likewise.
3735         * config/i386/i386.c (x86_expand_epilogue): Fix wording in comment.
3736         (ix86_output_call_insn): Emit a nop in one more case for SEH.
3737         * config/i386/winnt.c: Include except.h.
3738         (struct seh_frame_state): Add reg_offset, after_prologue and
3739         in_cold_section fields.
3740         (i386_pe_seh_end_prologue): Set seh->after_prologue.
3741         (i386_pe_seh_cold_init): New function.
3742         (i386_pe_seh_fini): Add COLD parameter and bail out if it is not equal
3743         to seh->in_cold_section.
3744         (seh_emit_push): Record the offset of the push.
3745         (seh_emit_save): Record the offet of the save.
3746         (i386_pe_seh_unwind_emit): Deal with NOTE_INSN_SWITCH_TEXT_SECTIONS.
3747         Test seh->after_prologue to disregard the epilogue.
3748         (i386_pe_end_function): Pass FALSE to i386_pe_seh_fini.
3749         (i386_pe_end_cold_function): New function.
3750
3751 2018-03-07  Jakub Jelinek  <jakub@redhat.com>
3752
3753         PR fortran/84565
3754         * config/aarch64/predicates.md (aarch64_simd_reg_or_zero): Use
3755         aarch64_simd_or_scalar_imm_zero rather than aarch64_simd_imm_zero.
3756
3757         PR c++/84704
3758         * gimple-expr.c (create_tmp_var_raw): Set DECL_NAMELESS flag
3759         on tmp_var.
3760         * tree-pretty-print.c (dump_decl_name): For TDF_COMPARE_DEBUG,
3761         don't print names of DECL_NAMELESS DECL_IGNORED_P decls.
3762
3763         PR middle-end/84723
3764         * multiple_target.c: Include tree-inline.h and intl.h.
3765         (expand_target_clones): Diagnose and fail if node->definition and
3766         !tree_versionable_function_p (node->decl).
3767
3768 2018-03-06  John David Anglin  <danglin@gcc.gnu.org>
3769
3770         * config/pa/pa.h (ASM_GENERATE_INTERNAL_LABEL): Revise to use
3771         sprint_ul.
3772         (ASM_OUTPUT_ADDR_VEC_ELT): Revise for above change.
3773         (ASM_OUTPUT_ADDR_DIFF_ELT): Likewise.
3774         * config/pa/pa64-hpux.h (ASM_GENERATE_INTERNAL_LABEL): Revise as above.
3775
3776 2018-03-06  Jakub Jelinek  <jakub@redhat.com>
3777
3778         PR target/84710
3779         * combine.c (try_combine): Use reg_or_subregno instead of handling
3780         just paradoxical SUBREGs and REGs.
3781
3782 2018-03-06  Claudiu Zissulescu  <claziss@synopsys.com>
3783
3784          * config/arc/arc.c (arc_finalize_pic): Remove function.
3785          (arc_must_save_register): We use single base PIC register, remove
3786          checks to save/restore the PIC register.
3787          (arc_expand_prologue): Likewise.
3788          * config/arc/arc-protos.h (arc_set_default_type_attributes):
3789          Remove.
3790          (arc_verify_short): Likewise.
3791          (arc_attr_type): Likewise.
3792          * config/arc/arc.c (arc_set_default_type_attributes): Remove.
3793          (walk_stores): Likewise.
3794          (arc_address_cost): Make it static.
3795          (arc_verify_short): Likewise.
3796          (branch_dest): Likewise.
3797          (arc_attr_type): Likewise.
3798          * config/arc/arc.c (TARGET_ADJUST_INSN_LENGTH): Remove.
3799          (TARGET_INSN_LENGTH_PARAMETERS): Likewise.
3800          (arc_final_prescan_insn): Remove inserting the nops due to
3801          hardware hazards.  It is done in reorg step.
3802          (insn_length_variant_t): Remove.
3803          (insn_length_parameters_t): Likewise.
3804          (arc_insn_length_parameters): Likewise.
3805          (arc_get_insn_variants): Likewise.
3806          * config/arc/arc.h (TARGET_UPSIZE_DBR): Remove.
3807
3808 2018-03-06  Jakub Jelinek  <jakub@redhat.com>
3809
3810         PR inline-asm/84683
3811         * reg-stack.c (move_for_stack_reg): If any_malformed_asm, avoid
3812         assertion failure.
3813
3814         PR tree-optimization/84687
3815         * omp-simd-clone.c (simd_clone_create): Clear DECL_BUILT_IN_CLASS
3816         on new_node->decl.
3817         * match.pd (pow(C,x)*expN(y) -> expN(logN(C)*x+y)): New optimization.
3818
3819 2018-03-05  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
3820
3821         * config/rs6000/rs6000-builtin.def (rs6000_speculation_barrier):
3822         Rename to ppc_speculation_barrier.
3823         * config/rs6000/rs6000.c (rs6000_init_builtins): Rename builtin to
3824         __builtin_ppc_speculation_barrier.
3825
3826 2018-03-05  Jakub Jelinek  <jakub@redhat.com>
3827
3828         PR target/84700
3829         * combine.c (combine_simplify_rtx): Don't try to simplify if
3830         if_then_else_cond returned non-NULL, but either true_rtx or false_rtx
3831         are equal to x.
3832
3833 2018-03-05  Segher Boessenkool  <segher@kernel.crashing.org>
3834
3835         * config/rs6000/rs6000.c (rs6000_loop_align): Don't align tiny loops
3836         to 32 bytes when compiling for POWER9.
3837
3838 2018-03-05  Jakub Jelinek  <jakub@redhat.com>
3839
3840         PR target/84564
3841         * config/i386/i386.c (ix86_function_ok_for_sibcall): Check for
3842         regparm >= 3 with no arg reg available also for calls with
3843         flag_force_indirect_call.  Pass decl to ix86_function_regparm.
3844
3845         PR target/84524
3846         * config/i386/sse.md (*<code><mode>3): Replace <mask_prefix3> with
3847         orig,vex.
3848         (*<plusminus_insn><mode>3): Likewise.  Remove <mask_operand3> uses.
3849
3850 2018-03-05  Peter Bergner  <bergner@vnet.ibm.com>
3851
3852         PR target/84264
3853         * config/rs6000/vector.md (mov<mode>): Disallow altivec memory operands.
3854
3855 2018-03-05  Richard Biener  <rguenther@suse.de>
3856
3857         PR tree-optimization/84486
3858         * tree-ssa-pre.c (create_expression_by_pieces): Remove dead code.
3859         When inserting a __builtin_assume_aligned call set the LHS
3860         SSA name alignment info accordingly.
3861
3862 2018-03-05  Wilco Dijkstra  <wdijkstr@arm.com>
3863
3864         PR tree-optimization/84114
3865         * config/aarch64/aarch64.c (aarch64_reassociation_width)
3866         Avoid reassociation of FLOAT_MODE addition.
3867
3868 2018-03-05  Olga Makhotina  <olga.makhotina@intel.com>
3869
3870         * common/config/i386/i386-common.c (OPTION_MASK_ISA_PCONFIG_SET,
3871         OPTION_MASK_ISA_PCONFIG_UNSET, OPTION_MASK_ISA_WBNOINVD_SET,
3872         OPTION_MASK_ISA_WBNOINVD_UNSET): New definitions.
3873         (ix86_handle_option): Handle -mpconfig and -mwbnoinvd.
3874         * config.gcc (pconfigintrin.h, wbnoinvdintrin.h) : Add headers.
3875         * config/i386/cpuid.h (bit_PCONFIG, bit_WBNOINVD): New.
3876         * config/i386/driver-i386.c (host_detect_local_cpu): Detect -mpconfig
3877         and -mwbnoinvd.
3878         * config/i386/i386-builtin.def (__builtin_ia32_wbnoinvd,
3879         __builtin_ia32_wbinvd): New builtins.
3880         (SPECIAL_ARGS2): New.
3881         * config/i386/i386-c.c (__WBNOINVD__, __PCONFIG__): New.
3882         (SPECIAL_ARGS2): New.
3883         * config/i386/i386.c (ix86_target_string): Add -mpconfig and -mwbnoinvd.
3884         (ix86_valid_target_attribute_inner_p): Ditto.
3885         (ix86_init_mmx_sse_builtins): Add special_args2.
3886         * config/i386/i386.h (TARGET_PCONFIG, TARGET_PCONFIG_P, TARGET_WBNOINVD,
3887         TARGET_WBNOINVD_P): New.
3888         * config/i386/i386.md (UNSPECV_WBINVD, UNSPECV_WBNOINVD): New.
3889         (define_insn "wbinvd", define_insn "wbnoinvd"): New.
3890         * config/i386/i386.opt: Add -mpconfig and -mwbnoinvd.
3891         * config/i386/immintrin.h (_wbinvd): New intrinsic.
3892         * config/i386/pconfigintrin.h: New file.
3893         * config/i386/wbnoinvdintrin.h: Ditto.
3894         * config/i386/x86intrin.h: Add headers pconfigintrin.h and wbnoinvdintrin.h.
3895         * doc/invoke.texi (-mpconfig, -mwbnoinvd): New.
3896
3897 2018-03-05  Richard Biener  <rguenther@suse.de>
3898
3899         PR tree-optimization/84670
3900         * tree-ssa-pre.c (struct bb_bitmap_sets): Add visited_with_visited_succs
3901         member.
3902         (BB_VISITED_WITH_VISITED_SUCCS): New define.
3903         (compute_antic): Initialize BB_VISITED_WITH_VISITED_SUCCS.
3904         (compute_antic_aux): Only assert the number of values in ANTIC_IN
3905         doesn't grow if all successors (recursively) were visited at least
3906         once.
3907
3908 2018-03-05  Richard Biener  <rguenther@suse.de>
3909
3910         PR tree-optimization/84650
3911         * tree-ssa-loop-im.c (pass_lim::execute): Reset the SCEV cache
3912         if executed in the loop pipeline.
3913
3914 2018-03-05  Sandra Loosemore  <sandra@codesourcery.com>
3915
3916         * doc/configfiles.texi (Configuration Files): Move info about
3917         conditionalizing $target-protos.h to...
3918         * doc/sourcebuild.texi (Back End): Here.  Explain how $target.h
3919         differs from $target-protos.h.
3920
3921 2018-03-05  Kito Cheng  <kito.cheng@gmail.com>
3922             Chung-Ju Wu  <jasonwucj@gmail.com>
3923
3924         * config/nds32/nds32-protos.h (nds32_expand_setmem): Declare.
3925         * config/nds32/nds32-multiple.md (setmemsi): Define.
3926         * config/nds32/nds32-memory-manipulation.c
3927         (nds32_gen_dup_4_byte_to_word_value): New.
3928         (emit_setmem_word_loop): New.
3929         (emit_setmem_byte_loop): New.
3930         (nds32_expand_setmem_loop): New.
3931         (nds32_expand_setmem_loop_v3m): New.
3932         (nds32_expand_setmem_unroll): New.
3933         (nds32_expand_setmem): New.
3934
3935 2018-03-04  Kito Cheng  <kito.cheng@gmail.com>
3936             Chung-Ju Wu  <jasonwucj@gmail.com>
3937
3938         * config/nds32/nds32-memory-manipulation.c
3939         (nds32_emit_load_store): New.
3940         (nds32_emit_post_inc_load_store): New.
3941         (nds32_emit_mem_move): New.
3942         (nds32_emit_mem_move_block): New.
3943         (nds32_expand_movmemsi_loop_unknown_size): New.
3944         (nds32_expand_movmemsi_loop_known_size): New.
3945         (nds32_expand_movmemsi_loop): New.
3946         (nds32_expand_movmemsi_unroll): New.
3947         (nds32_expand_movmemqi): Rename ...
3948         (nds32_expand_movmemsi): ... to this.
3949         * config/nds32/nds32-multiple.md (movmemqi): Rename ...
3950         (movmemsi): ... to this.
3951         * config/nds32/nds32-protos.h (nds32_expand_movmemqi): Rename ...
3952         (nds32_expand_movmemsi): ... to this.
3953
3954 2018-03-04  Kito Cheng  <kito.cheng@gmail.com>
3955             Monk Chiang  <sh.chiang04@gmail.com>
3956             Chung-Ju Wu  <jasonwucj@gmail.com>
3957
3958         * config/nds32/nds32-protos.h
3959         (nds32_expand_load_multiple): New arguments.
3960         (nds32_expand_store_multiple): Ditto.
3961         (nds32_valid_multiple_load_store): Rename ...
3962         (nds32_valid_multiple_load_store_p): ... to this.
3963         * config/nds32/nds32-memory-manipulation.c
3964         (nds32_expand_load_multiple): Refine implementation.
3965         (nds32_expand_store_multiple): Ditto.
3966         * config/nds32/nds32-multiple.md
3967         (load_multiple): Update nds32_expand_load_multiple interface.
3968         (store_multiple): Update nds32_expand_store_multiple interface.
3969         * config/nds32/nds32-predicates.c
3970         (nds32_valid_multiple_load_store): Rename ...
3971         (nds32_valid_multiple_load_store_p): ... to this and refine
3972         implementation.
3973         * config/nds32/predicates.md
3974         (nds32_load_multiple_and_update_address_operation): New predicate.
3975         (nds32_store_multiple_and_update_address_operation): New predicate.
3976
3977 2018-03-04  Kito Cheng  <kito.cheng@gmail.com>
3978             Chung-Ju Wu  <jasonwucj@gmail.com>
3979
3980         * config/nds32/nds32.md (type): Add load_multiple and store_multiple.
3981         (combo): New attribute.
3982         * config/nds32/nds32-multiple.md: Refine patterns with new attributes.
3983
3984 2018-03-03  Chung-Ju Wu  <jasonwucj@gmail.com>
3985
3986         * config/nds32/nds32.opt: Change -mcmodel= default value.
3987
3988 2018-03-03  Kito Cheng  <kito.cheng@gmail.com>
3989             Monk Chiang  <sh.chiang04@gmail.com>
3990             Chung-Ju Wu  <jasonwucj@gmail.com>
3991
3992         * config/nds32/constants.md (unspec_element): New enum.
3993         * config/nds32/constraints.md (Umw): New constraint.
3994         * config/nds32/nds32-intrinsic.c: Add more builtin functions.
3995         * config/nds32/nds32-intrinsic.md: Likewise.
3996         * config/nds32/nds32-md-auxiliary.c (nds32_regno_to_enable4): New.
3997         (nds32_valid_smw_lwm_base_p): New.
3998         (nds32_output_smw_single_word): New.
3999         (nds32_output_lmw_single_word): New.
4000         (nds32_expand_unaligned_load): New.
4001         (nds32_expand_unaligned_store): New.
4002         * config/nds32/nds32-protos.h (nds32_valid_smw_lwm_base_p): Declare.
4003         (nds32_output_smw_single_word): Declare.
4004         (nds32_output_lmw_single_word): Declare.
4005         (nds32_expand_unaligned_load): Declare.
4006         (nds32_expand_unaligned_store): Declare.
4007         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_UALOAD_HW,
4008         NDS32_BUILTIN_UALOAD_W, NDS32_BUILTIN_UALOAD_DW,
4009         NDS32_BUILTIN_UASTORE_HW, NDS32_BUILTIN_UASTORE_W,
4010         NDS32_BUILTIN_UASTORE_DW.
4011         * config/nds32/predicates.md (nds32_lmw_smw_base_operand): New
4012         predicate.
4013
4014 2018-03-03  Monk Chiang  <sh.chiang04@gmail.com>
4015             Kito Cheng  <kito.cheng@gmail.com>
4016             Chung-Ju Wu  <jasonwucj@gmail.com>
4017
4018         * config/nds32/nds32-intrinsic.c
4019         (nds32_expand_builtin_null_ftype_reg): Delete.
4020         (nds32_expand_builtin_reg_ftype_imm): Ditto.
4021         (nds32_expand_builtin_null_ftype_reg_imm): Ditto.
4022         (nds32_read_argument): New.
4023         (nds32_legitimize_target): Ditto.
4024         (nds32_legitimize_argument): Ditto.
4025         (nds32_check_constant_argument): Ditto.
4026         (nds32_expand_unop_builtin): Ditto.
4027         (nds32_expand_unopimm_builtin): Ditto.
4028         (nds32_expand_binop_builtin): Ditto.
4029         (nds32_builtin_decl_impl): Ditto.
4030         (builtin_description): Ditto.
4031         (nds32_expand_builtin_impl): Rewrite with new infrastructure.
4032         (nds32_init_builtins_impl): Ditto.
4033         * config/nds32/nds32.c (TARGET_BUILTIN_DECL): Define.
4034         (nds32_builtin_decl): New.
4035         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_COUNT.
4036         * config/nds32/nds32-protos.h (nds32_builtin_decl_impl): Declare.
4037
4038 2018-03-02  Jeff Law  <law@redhat.com>
4039
4040         * reorg.c (stop_search_p): Handle DEBUG_INSN.
4041         (redundant_insn, fill_simple_delay_slots): Likewise.
4042         (fill_slots_from_thread): Likewise.
4043         * resource.c (mark_referenced_resources): Likewise.
4044         (mark_set_resources, find_dead_or_set_registers): Likewise.
4045
4046 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
4047
4048         * substring-locations.h (format_warning_va): Formatting fix for
4049         ATTRIBUTE_GCC_DIAG.
4050         (format_warning_at_substring): Fix up ATTRIBUTE_GCC_DIAG second
4051         argument.
4052         (format_warning_n_va, format_warning_at_substring_n): New prototypes.
4053         * substring-locations.c: Include intl.h.
4054         (format_warning_va): Turned into small wrapper around
4055         format_warning_n_va, renamed to ...
4056         (format_warning_n_va): ... this, add N and PLURAL_GMSGID arguments,
4057         rename GMSGID to SINGULAR_GMSGID, if SINGULAR_GMSGID != PLURAL_GMSGID,
4058         use ngettext.
4059         (format_warning_at_substring_n): New function.
4060         * gimple-ssa-sprintf.c: Remove GCC diagnostic ignored pragma.
4061         (fmtwarn): Add ATTRIBUTE_GCC_DIAG.  Turn into a copy of
4062         format_warning_at_substring with just a shorter name instead of
4063         const function pointer.
4064         (fmtwarn_n): New function.
4065         (maybe_warn, format_directive, parse_directive): Use fmtwarn_n where
4066         appropriate, get rid of all the fmtstr temporaries, move conditionals
4067         with G_() wrapped string literals directly into fmtwarn arguments,
4068         cast dir.len to (int), formatting fixes.
4069
4070 2018-03-02  Thomas Schwinge  <thomas@codesourcery.com>
4071
4072         * doc/invoke.texi: Remove "Cilk Plus" references.
4073
4074 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
4075             Richard Biener  <rguenther@suse.de>
4076
4077         PR ipa/84628
4078         * expr.c (expand_expr_real_1) <case CALL_EXPR>: Don't emit diagnostics
4079         for error or warning attributes if CALL_FROM_THUNK_P is set.
4080         Formatting fixes.
4081
4082 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
4083
4084         PR target/56540
4085         * config/pa/pa.h (TARGET_CPU_CPP_BUILTINS): Predefine
4086         __SIZEOF_128__ macro if HPUX_LONG_DOUBLE_LIBRARY.
4087
4088         PR target/56540
4089         * config/ia64/ia64.h (TARGET_CPU_CPP_BUILTINS): Predefine
4090         __SIZEOF_{FPREG,FLOAT{80,128}}__ macros.
4091
4092         * predict.c (test_prediction_value_range): Use PROB_UNINITIALIZED
4093         instead of -1U in last predictors element's probability member.
4094
4095 2018-03-02  Eric Botcazou  <ebotcazou@adacore.com>
4096
4097         PR ipa/83983
4098         * ipa-devirt.c (odr_subtypes_equivalent_p): Get the ODR type of both
4099         arguments if they are comparable.
4100
4101 2018-03-02  Richard Sandiford  <richard.sandiford@linaro.org>
4102
4103         PR tree-optimization/84634
4104         * tree-vect-stmts.c (vectorizable_store, vectorizable_load): Replace
4105         masks and masked_loop_p with a single loop_masks, making sure it's
4106         null for bb vectorization.
4107
4108 2018-03-02  Richard Sandiford  <richard.sandiford@linaro.org>
4109
4110         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence)
4111         (vect_analyze_data_ref_access): Use loop->safe_len rather than
4112         loop->force_vectorize to check whether there is no alias.
4113
4114 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
4115
4116         PR target/84614
4117         * rtl.h (prev_real_nondebug_insn, next_real_nondebug_insn): New
4118         prototypes.
4119         * emit-rtl.c (next_real_insn, prev_real_insn): Fix up function
4120         comments.
4121         (next_real_nondebug_insn, prev_real_nondebug_insn): New functions.
4122         * cfgcleanup.c (try_head_merge_bb): Use prev_real_nondebug_insn
4123         instead of a loop around prev_real_insn.
4124         * combine.c (move_deaths): Use prev_real_nondebug_insn instead of
4125         prev_real_insn.
4126
4127         PR inline-asm/84625
4128         * config/i386/i386.c (ix86_print_operand): Use conditional
4129         output_operand_lossage instead of gcc_assert if CONST_VECTOR is not
4130         zero vector.
4131
4132 2018-03-02  Richard Biener  <rguenther@suse.de>
4133
4134         PR tree-optimization/84427
4135         * tree-ssa-pre.c (bitmap_remove_expr_from_set): Remove.
4136         (bitmap_set_subtract_values): Rewrite to handle multiple
4137         exprs per value.
4138         (clean): Likewise.
4139         (prune_clobbered_mems): Likewise.
4140         (phi_translate): Take edge instead of pred/phiblock.
4141         (phi_translate_1): Likewise.
4142         (phi_translate_set): Likewise.  Insert all translated
4143         exprs for a value into the set, keeping possibly multiple
4144         expressions per value.
4145         (compute_antic_aux): Adjust for phi_translate changes.
4146         When intersecting union the expressions and prune those
4147         not in the final value set, keeping possibly multiple
4148         expressions per value.  Do not use value-insertion
4149         for unioning ANTIC_OUT U EXP_GEN - TMP_GEN but merge
4150         all expressions.  Add verification that the value-sets
4151         only shrink during iteration.
4152         (compute_partial_antic_aux): Adjust for the phi_translate changes.
4153         (do_pre_regular_insertion): Likewise.
4154         (do_pre_partial_partial_insertion): Likewise.
4155
4156 2018-03-02  Richard Biener  <rguenther@suse.de>
4157
4158         PR target/82005
4159         * config/darwin.c (saved_debug_info_level): New static global.
4160         (darwin_asm_lto_start): Disable debug info generation for LTO out.
4161         (darwin_asm_lto_end): Restore debug info generation settings.
4162
4163 2018-03-01  Martin Liska  <mliska@suse.cz>
4164
4165         PR sanitizer/82484
4166         * sanopt.c (sanitize_rewrite_addressable_params): Do not handle
4167         volatile arguments.
4168
4169 2018-03-01  Richard Biener  <rguenther@suse.de>
4170
4171         PR debug/84645
4172         * dwarf2out.c (gen_variable_die): Properly handle late VLA
4173         type annotation with LTO when debug was disabled at compile-time.
4174
4175 2018-03-01  Matthew Fortune  <mfortune@gmail.com>
4176
4177         * config/mips/mips.c (mips_final_prescan_insn): Fix incorrect
4178         XINT with INTVAL.
4179         (mips_final_postscan_insn): Likewise.
4180
4181 2018-03-01  Richard Sandiford  <richard.sandiford@linaro.org>
4182
4183         PR rtl-optimization/84528
4184         * alias.c (init_alias_target): Add commentary.
4185         (init_alias_analysis): Only give HARD_FRAME_POINTER_REGNUM
4186         a unique base value if the frame pointer is not eliminated
4187         to the stack pointer.
4188
4189 2018-03-01  Tom de Vries  <tom@codesourcery.com>
4190
4191         PR rtl-optimization/83327
4192         * lra-int.h (hard_regs_spilled_into): Declare.
4193         * lra.c (hard_regs_spilled_into): Define.
4194         (init_reg_info): Init hard_regs_spilled_into.
4195         * lra-spills.c (assign_spill_hard_regs): Update hard_regs_spilled_into.
4196         * lra-lives.c (make_hard_regno_born, make_hard_regno_dead)
4197         (process_bb_lives): Handle hard_regs_spilled_into.
4198         (lra_create_live_ranges_1): Before doing liveness propagation, clear
4199         regs in all_hard_regs_bitmap if set in hard_regs_spilled_into.
4200
4201 2018-02-28  David Edelsohn  <dje.gcc@gmail.com>
4202
4203         * config.gcc (powerpc-ibm-aix7.1.*): New stanza.
4204         (powerpc-ibm-aix[789]*): Default to AIX 7.2.
4205         * config/rs6000/aix71.h (TARGET_DEFAULT): Revert to Power4 ISA.
4206         * config/rs6000/aix72.h: New file.
4207
4208 2018-02-28  Jakub Jelinek  <jakub@redhat.com>
4209
4210         * gimple-ssa-warn-restrict.c (maybe_diag_overlap): Use warning_n
4211         instead of warning_at with conditional singular and plural messages
4212         where possible.
4213
4214         PR target/52991
4215         * stor-layout.c (update_alignment_for_field): For
4216         targetm.ms_bitfield_layout_p (rli->t), if !is_bitfield
4217         && !DECL_PACKED (field), do the alignment update, just use
4218         only desired_align instead of MAX (type_align, desired_align)
4219         as the alignment.
4220         (place_field): Don't do known_align < desired_align handling
4221         early if targetm.ms_bitfield_layout_p (rli->t) and rli->prev_field
4222         is non-NULL, instead do it after rli->prev_field handling and
4223         only if not within a bitfield word.  For DECL_PACKED (field)
4224         use type_align of BITS_PER_UNIT.
4225
4226 2018-02-28  Eric Botcazou  <ebotcazou@adacore.com>
4227
4228         * config/aarch64/aarch64.c (aarch64_emit_probe_stack_range): Remove
4229         superfluous parentheses and trailing spaces.
4230
4231 2018-02-28  Richard Biener  <rguenther@suse.de>
4232
4233         PR tree-optimization/84584
4234         * graphite-scop-detection.c (scop_detection::add_scop): Discard
4235         SCoPs with fake exit edge.
4236
4237 2018-02-28  Martin Liska  <mliska@suse.cz>
4238
4239         PR testsuite/84597
4240         * timevar.c (timer::print): Fix format to properly print 100%
4241         values.
4242
4243 2018-02-28  Richard Biener  <rguenther@suse.de>
4244
4245         PR middle-end/84607
4246         * genmatch.c (capture_info::walk_match): Do not mark
4247         captured expressions without operands as expr_p given
4248         they act more like predicates and should be subject to
4249         "lost tail" side-effect preserving.
4250
4251 2018-02-28  Alexandre Oliva  <aoliva@redhat.com>
4252
4253         PR rtl-optimization/81611
4254         * auto-inc-dec.c (attempt_change): Move dead note from
4255         mem_insn if it's the next use of regno
4256         (find_address): Take address use of reg holding
4257         non-incremented value.  Add parm to limit search to the named
4258         reg only.
4259         (merge_in_block): Attempt to use a mem insn that is the next
4260         use of the original regno.
4261
4262 2018-02-27  Martin Sebor  <msebor@redhat.com>
4263
4264         PR c++/83871
4265         * gcc/doc/invoke.texi (-Wmissing-attributes): New option.
4266         * gcc/print-tree.c (print_node): Handle DECL_UNINLINABLE.
4267
4268 2018-02-27  Martin Sebor  <msebor@redhat.com>
4269
4270         PR translation/84207
4271         * diagnostic-core.h (warning_n, error_n, inform_n): Change
4272         n argument to unsigned HOST_WIDE_INT.
4273         * diagnostic.c (warning_n, error_n, inform_n): Ditto.
4274         (diagnostic_n_impl): Ditto.  Handle arguments in excess of LONG_MAX.
4275         * gimple-ssa-sprintf.c (format_directive): Simplify inform_n call.
4276         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Use warning_n.
4277
4278 2018-02-27  Richard Biener  <rguenther@suse.de>
4279
4280         PR tree-optimization/84512
4281         * tree-vect-loop.c (vect_compute_single_scalar_iteration_cost):
4282         Do not use the estimate returned from record_stmt_cost for
4283         the scalar iteration cost but sum properly using add_stmt_cost.
4284
4285 2018-02-27  Richard Biener  <rguenther@suse.de>
4286
4287         PR tree-optimization/84466
4288         * graphite-scop-detection.c (scop_detection::stmt_simple_for_scop_p):
4289         Adjust last change to less strictly validate use operands.
4290
4291 2018-02-27  Martin Liska  <mliska@suse.cz>
4292
4293         PR gcov-profile/84548
4294         * gcov.c (process_file): Allow partial overlap and consider it
4295         also as group functions.
4296         (output_lines): Properly calculate range of lines for a group.
4297
4298 2018-02-27  Martin Liska  <mliska@suse.cz>
4299
4300         * timevar.c (timer::print_row): Remove 'usr', 'sys', 'wall' and
4301         'ggc' suffixes.  Change first column width.
4302         (timer::print): Fix formatting of the column.
4303
4304 2018-02-27  Alexandre Oliva  <aoliva@redhat.com>
4305
4306         * tree-ssa-live.c (remove_unused_scope_block_p): Do not
4307         preserve inline entry blocks for the sake of debug inline
4308         entry point markers alone.
4309         (remove_unused_locals): Suggest in comments a better place to
4310         force the preservation of inline entry blocks that are
4311         otherwise unused, but do not preserve them.
4312
4313 2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
4314
4315         * config/i386/i386.c (ix86_output_indirect_jmp): Update comments.
4316
4317 2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
4318
4319         PR target/84039
4320         * config/i386/constraints.md (Bs): Replace
4321         ix86_indirect_branch_register with
4322         TARGET_INDIRECT_BRANCH_REGISTER.
4323         (Bw): Likewise.
4324         * config/i386/i386.md (indirect_jump): Likewise.
4325         (tablejump): Likewise.
4326         (*sibcall_memory): Likewise.
4327         (*sibcall_value_memory): Likewise.
4328         Peepholes of indirect call and jump via memory: Likewise.
4329         (*sibcall_GOT_32): Disallowed for TARGET_INDIRECT_BRANCH_REGISTER.
4330         (*sibcall_value_GOT_32): Likewise.
4331         * config/i386/predicates.md (indirect_branch_operand): Likewise.
4332         (GOT_memory_operand): Likewise.
4333         (call_insn_operand): Likewise.
4334         (sibcall_insn_operand): Likewise.
4335         (GOT32_symbol_operand): Likewise.
4336         * config/i386/i386.h (TARGET_INDIRECT_BRANCH_REGISTER): New.
4337
4338 2018-02-26  Eric Botcazou  <ebotcazou@adacore.com>
4339
4340         PR rtl-optimization/83496
4341         * reorg.c (steal_delay_list_from_target): Change REDUNDANT array from
4342         booleans to RTXes.  Call fix_reg_dead_note on every non-null element.
4343         (steal_delay_list_from_fallthrough): Call fix_reg_dead_note on a
4344         redundant insn, if any.
4345         (relax_delay_slots): Likewise.
4346         (update_reg_unused_notes): Rename REDUNDANT_INSN to OTHER_INSN.
4347
4348 2018-02-26  Richard Sandiford  <richard.sandiford@linaro.org>
4349
4350         PR tree-optimization/83965
4351         * tree-vect-patterns.c (vect_reassociating_reduction_p): Assume
4352         that grouped statements are part of a reduction chain.  Return
4353         true if the statement is not marked as a reduction itself but
4354         is part of a group.
4355         (vect_recog_dot_prod_pattern): Don't check whether the statement
4356         is part of a group here.
4357         (vect_recog_sad_pattern): Likewise.
4358         (vect_recog_widen_sum_pattern): Likewise.
4359
4360 2018-02-26  Eric Botcazou  <ebotcazou@adacore.com>
4361
4362         PR debug/84545
4363         * final.c (rest_of_clean_state): Also look for calls inside sequences.
4364
4365 2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
4366
4367         PR target/84530
4368         * config/i386/i386-protos.h (ix86_output_indirect_jmp): Remove
4369         the bool argument.
4370         (ix86_output_indirect_function_return): New prototype.
4371         (ix86_split_simple_return_pop_internal): Likewise.
4372         * config/i386/i386.c (indirect_return_via_cx): New.
4373         (indirect_return_via_cx_bnd): Likewise.
4374         (indirect_thunk_name): Handle return va CX_REG.
4375         (output_indirect_thunk_function): Create alias for
4376         __x86_return_thunk_[re]cx and __x86_return_thunk_[re]cx_bnd.
4377         (ix86_output_indirect_jmp): Remove the bool argument.
4378         (ix86_output_indirect_function_return): New function.
4379         (ix86_split_simple_return_pop_internal): Likewise.
4380         * config/i386/i386.md (*indirect_jump): Don't pass false
4381         to ix86_output_indirect_jmp.
4382         (*tablejump_1): Likewise.
4383         (simple_return_pop_internal): Change it to define_insn_and_split.
4384         Call ix86_split_simple_return_pop_internal to split it for
4385         -mfunction-return=.
4386         (simple_return_indirect_internal): Call
4387         ix86_output_indirect_function_return instead of
4388         ix86_output_indirect_jmp.
4389
4390 2018-02-26  Jakub Jelinek  <jakub@redhat.com>
4391
4392         PR bootstrap/84405
4393         * vec.h (vec_default_construct): For BROKEN_VALUE_INITIALIZATION use
4394         memset and value initialization afterwards.
4395
4396 2018-02-26  Christophe Lyon  <christophe.lyon@linaro.org>
4397
4398         * Makefile.in (lto-wrapper): Use ALL_LINKERFLAGS.
4399
4400 2018-02-26  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
4401
4402         PR target/84521
4403         * common/config/aarch64/aarch64-common.c
4404         (aarch_option_optimization_table[]): Switch
4405         off fomit-frame-pointer
4406
4407 2018-02-26  Kito Cheng  <kito.cheng@gmail.com>
4408             Chung-Ju Wu  <jasonwucj@gmail.com>
4409
4410         * config/nds32/nds32-multiple.md (load_multiple): Disallow
4411         volatile memory.
4412         (store_multiple): Ditto.
4413
4414 2018-02-26  Kito Cheng  <kito.cheng@gmail.com>
4415
4416         * config.gcc: Add --with-cpu support for nds32 target.
4417         * config/nds32/nds32-opts.h (nds32_cpu_type): New.
4418         * config/nds32/nds32.opt: Add -mcpu= option.
4419
4420 2018-02-25  Segher Boessenkool  <segher@kernel.crashing.org>
4421
4422         * config/rs6000/rs6000.opt (mvrsave=no, mvrsave=yes, isel=no,
4423         isel=yes): Warn for these deprecated options.
4424
4425 2018-02-23  David Edelsohn  <dje.gcc@gmail.com>
4426
4427         * config/rs6000/aix71.h (TARGET_DEFAULT): Change to
4428         ISA_2_5_MASKS_EMBEDDED.
4429
4430 2018-02-23  Jakub Jelinek  <jakub@redhat.com>
4431
4432         * ipa-prop.c (ipa_vr_ggc_hash_traits::hash): Hash p->min and
4433         p->max as pointers rather than using iterative_hash_expr.
4434
4435 2018-02-23  Carl Love  <cel@us.ibm.com>
4436
4437         * config/rs6000/rs6000-builtin.def: Change VSIGNED2 and VUNSIGNED2
4438         macro expansions from BU_VSX_2 to BU_P8V_VSX_2 and BU_VSX_OVERLOAD_2 to
4439         BU_P8V_OVERLOAD_2.
4440         * config/rs6000/rs6000-c.c: Change VSX_BUILTIN_VEC_VSIGNED2 to
4441         P8V_BUILTIN_VEC_VSIGNED2.  Change VSX_BUILTIN_VEC_VUNSIGNED2 to
4442         P8V_BUILTIN_VEC_VUNSIGNED2.
4443
4444 2018-02-22  Vladimir Makarov  <vmakarov@redhat.com>
4445
4446         PR target/81572
4447         * lra-int.h (LRA_UNKNOWN_ALT, LRA_NON_CLOBBERED_ALT): New macros.
4448         * lra.c (lra_set_insn_recog_data, lra_update_insn_recog_data): Use
4449         LRA_UNKNOWN_ALT.
4450         * lra-constraints.c (curr_insn_transform): Set up
4451         LRA_NON_CLOBBERED_ALT for moves processed on the fast path.  Use
4452         LRA_UNKNOWN_ALT.
4453         (remove_inheritance_pseudos): Use LRA_UNKNOWN_ALT.
4454         * lra-eliminations.c (spill_pseudos): Ditto.
4455         (process_insn_for_elimination): Ditto.
4456         * lra-lives.c (reg_early_clobber_p): Use the new macros.
4457         * lra-spills.c (spill_pseudos): Use LRA_UNKNOWN_ALT and
4458         LRA_NON_CLOBBERED_ALT.
4459
4460 2018-02-22  Martin Sebor  <msebor@redhat.com>
4461
4462         PR tree-optimization/84480
4463         * gimple-fold.c (gimple_fold_builtin_strcpy): Move warnings
4464         to maybe_diag_stxncpy_trunc.  Call it.
4465         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Integrate warnings
4466         from gimple_fold_builtin_strcpy.  Print inlining stack.
4467         (handle_builtin_stxncpy): Print inlining stack.
4468         * tree-ssa-strlen.h (maybe_diag_stxncpy_trunc): Declare.
4469
4470 2018-02-22  H.J. Lu  <hongjiu.lu@intel.com>
4471
4472         PR target/84176
4473         * config/i386/i386.c (ix86_set_indirect_branch_type): Issue an
4474         error when -mindirect-branch=thunk-extern, -fcf-protection=branch
4475         and -fcheck-pointer-bounds are used together.
4476         (indirect_thunk_prefix): New enum.
4477         (indirect_thunk_need_prefix): New function.
4478         (indirect_thunk_name): Replace need_bnd_p with need_prefix.  Use
4479         "_nt" instead of "_bnd" for NOTRACK prefix.
4480         (output_indirect_thunk): Replace need_bnd_p with need_prefix.
4481         (output_indirect_thunk_function): Likewise.
4482         (): Likewise.
4483         (ix86_code_end): Update output_indirect_thunk_function calls.
4484         (ix86_output_indirect_branch_via_reg): Replace
4485         ix86_bnd_prefixed_insn_p with indirect_thunk_need_prefix.
4486         (ix86_output_indirect_branch_via_push): Likewise.
4487         (ix86_output_function_return): Likewise.
4488         * doc/invoke.texi: Document -mindirect-branch=thunk-extern is
4489         incompatible with -fcf-protection=branch and
4490         -fcheck-pointer-bounds.
4491
4492 2018-02-22  Steve Ellcey  <sellcey@cavium.com>
4493
4494         PR target/83335
4495         * config/aarch64/aarch64.c (aarch64_print_address_internal):
4496         Change gcc_assert call to output_operand_lossage.
4497
4498 2018-02-22  Steve Ellcey  <sellcey@cavium.com>
4499
4500         * doc/extend.texi (__builtin_extend_pointer): Document builtin.
4501
4502 2018-02-22  DJ Delorie  <dj@redhat.com>
4503             Sebastian Perta  <sebastian.perta@renesas.com>
4504             Oleg Endo  <olegendo@gcc.gnu.org>
4505
4506         * config/rx/rx.c (rx_rtx_costs): New function.
4507         (TARGET_RTX_COSTS): Override to use rx_rtx_costs.
4508
4509 2018-02-22  Thomas Preud'homme  <thomas.preudhomme@arm.com>
4510
4511         * config/arm/t-multilib: Map Armv8-R to Armv7 multilibs.
4512
4513 2018-02-22  Martin Liska  <mliska@suse.cz>
4514
4515         PR driver/83193
4516         * common/config/arm/arm-common.c (arm_print_hint_for_cpu_option):
4517         Add "native" as a possible value.
4518
4519 2018-02-22  Martin Liska  <mliska@suse.cz>
4520
4521         PR driver/83193
4522         * config/i386/i386.c (ix86_option_override_internal):
4523         Add "native" as a possible value for -march and -mtune.
4524
4525 2018-02-22  Jakub Jelinek  <jakub@redhat.com>
4526
4527         PR target/84502
4528         * stor-layout.c (finalize_type_size): Propagate TYPE_EMPTY_P flag
4529         to all type variants.
4530
4531         PR tree-optimization/84503
4532         * gimple-ssa-store-merging.c (merged_store_group::merge_into): Compute
4533         width as info->bitpos + info->bitsize - start.
4534         (merged_store_group::merge_overlapping): Simplify width computation.
4535         (check_no_overlap): New function.
4536         (imm_store_chain_info::try_coalesce_bswap): Compute expected
4537         start + width and last_order of the group, fail if check_no_overlap
4538         fails.
4539         (imm_store_chain_info::coalesce_immediate_stores): Don't merge info
4540         to group if check_no_overlap fails.
4541
4542 2018-02-21  Segher Boessenkool  <segher@kernel.crashing.org>
4543
4544         * config/rs6000/altivec.md: Delete contraint arguments to
4545         define_expand, define_split, and define_peephole2, and in
4546         define_insn_and_split if always unused.
4547         * config/rs6000/darwin.md: Ditto.
4548         * config/rs6000/dfp.md: Ditto.
4549         * config/rs6000/rs6000.md: Ditto.
4550         * config/rs6000/sync.md: Ditto.
4551         * config/rs6000/vector.md: Ditto.
4552         * config/rs6000/vsx.md: Ditto.
4553
4554 2018-02-21  Segher Boessenkool  <segher@kernel.crashing.org>
4555
4556         * config/rs6000/altivec.md: Write output control strings as braced
4557         blocks instead of double-quoted strings.
4558         * config/rs6000/darwin.md: Ditto.
4559         * config/rs6000/rs6000.md: Ditto.
4560         * config/rs6000/vector.md: Ditto.
4561         * config/rs6000/vsx.md: Ditto.
4562
4563 2018-02-21  Jason Merrill  <jason@redhat.com>
4564
4565         PR c++/84314 - ICE with templates and fastcall attribute.
4566         * attribs.c (build_type_attribute_qual_variant): Remove assert.
4567
4568 2018-02-21  Jan Hubicka  <hubicka@ucw.cz>
4569
4570         * ipa-cp.c (determine_versionability): Fix comment typos.
4571
4572 2018-02-21  Jan Hubicka  <hubicka@ucw.cz>
4573
4574         PR c/84229
4575         * ipa-cp.c (determine_versionability): Do not version functions caling
4576         va_arg_pack.
4577
4578 2018-02-21  Martin Liska  <mliska@suse.cz>
4579
4580         PR driver/83193
4581         * config/aarch64/aarch64.c (aarch64_print_hint_for_core_or_arch):
4582         Add "native" as a possible value.
4583         * config/aarch64/aarch64.h (HAVE_LOCAL_CPU_DETECT):  Define
4584         the macro when native cpu detection is available.
4585
4586 2018-02-21  Martin Liska  <mliska@suse.cz>
4587
4588         PR driver/83193
4589         * common/config/arm/arm-common.c (arm_print_hint_for_arch_option):
4590         Add "native" as a possible value.
4591         * config/arm/arm.h (HAVE_LOCAL_CPU_DETECT): Define the macro
4592         when native cpu detection is available.
4593
4594 2018-02-21  Jakub Jelinek  <jakub@redhat.com>
4595             Martin Sebor  <msebor@redhat.com>
4596
4597         PR tree-optimization/84478
4598         * gimple-fold.h (get_range_strlen): Add a bool argument defaulted to
4599         false.
4600         * gimple-fold.c (get_range_strlen): Make minlen const and assume it
4601         can't be NULL.  Change FUZZY from bool to int, for 1 add PHI/COND_EXPR
4602         support which is conservatively correct, for 2 only stay conservative
4603         for maxlen.  Formatting and comment capitalization fixes.  Add STRICT
4604         argument to the 2 argument get_range_strlen, adjust 6 arg
4605         get_range_strlen caller and clear minmaxlen[0] and [1] if it returned
4606         false.
4607         (get_maxval_strlen): Adjust 6 arg get_range_strlen caller.
4608         (gimple_fold_builtin_strlen): Pass true as last argument to
4609         get_range_strlen.
4610
4611 2018-02-20  Martin Sebor  <msebor@redhat.com>
4612
4613         PR middle-end/84095
4614         * gimple-ssa-warn-restrict.c (builtin_memref::extend_offset_range): New.
4615         (builtin_memref::set_base_and_offset): Same.  Handle inner references.
4616         (builtin_memref::builtin_memref): Factor out parts into
4617         set_base_and_offset and call it.
4618
4619 2018-02-20  Richard Sandiford  <richard.sandiford@linaro.org>
4620
4621         PR middle-end/84406
4622         * optabs-query.c (find_widening_optab_handler_and_mode): If from_mode
4623         is a scalar_int_mode, assert that to_mode is a scalar_int_mode with
4624         greater precision.  If to_mode is a MODE_PARTIAL_INT, stop the
4625         search at the associated MODE_INT.
4626
4627 2018-02-20  Jeff Law  <law@redhat.com>
4628
4629         PR middle-end/82123
4630         PR tree-optimization/81592
4631         PR middle-end/79257
4632         * gimple-ssa-sprintf.c (format_integer): Query EVRP range analyzer
4633         for range data rather than using global data.
4634         * gimple-ssa-sprintf.c (get_int_range): Query EVRP range analyzer for
4635         range data rather than using global data.
4636         * gimple-ssa-sprintf.c (get_int_range): Accept vr_values parameter
4637         pass it to children as needed.
4638         (struct directive::fmtresult): Similarly.
4639         (struct directive::set_width): Similarly.
4640         (struct directive::set_precision): Similarly.
4641         (format_integer, format_directive, parse_directive): Similarly.
4642         (format_none): Accept unnamed vr_values parameter.
4643         (format_percent, format_floating, format_character): Similarly.
4644         (format_string, format_plain): Similarly.
4645         * gimple-ssa-sprintf.c (sprintf_dom_walker::handle_gimple_call): Query
4646         the EVRP range analyzer for range data rather than using global data.
4647         * gimple-ssa-sprintf.c: Include alloc-pool.h, vr-values.h and
4648         gimple-ssa-evrp-analyze.h
4649         (class sprintf_dom_walker): Add after_dom_children member function.
4650         Add evrp_range_analyzer member.
4651         (sprintf_dom_walker::before_dom_children): Call into the EVRP
4652         range analyzer as needed.
4653         (sprintf_dom_walker::after_dom_children): New member function.
4654         * gimple-ssa-evrp-analyze.c (evrp_range_analyzer::enter): Do nothing
4655         if not optimizing.
4656         (evrp_range_analyzer::record_ranges_from_stmt): Likewise.
4657         (evrp_range_analyzer::pop_to_marker): Likewise.
4658
4659 2018-02-20  Richard Sandiford  <richard.sandiford@linaro.org>
4660
4661         PR tree-optimization/84419
4662         * internal-fn.c (expand_call_mem_ref): Create a TARGET_MEM_REF
4663         with the required type if its current type is compatible but
4664         different.
4665
4666 2018-02-20  Jakub Jelinek  <jakub@redhat.com>
4667
4668         PR middle-end/82004
4669         * match.pd (pow(C,x) -> exp(log(C)*x)): Delay all folding until
4670         after vectorization.
4671
4672 2018-02-20  Martin Liska  <mliska@suse.cz>
4673
4674         PR driver/83193
4675         * config/aarch64/aarch64.c (aarch64_print_hint_for_core_or_arch): Print
4676         possible values if we don't have a hint.
4677
4678 2018-02-20  Martin Liska  <mliska@suse.cz>
4679
4680         PR c/84310
4681         PR target/79747
4682         * final.c (shorten_branches): Build align_tab array with one
4683         more element.
4684         * opts.c (finish_options): Add alignment option limit check.
4685         (MAX_CODE_ALIGN): Likewise.
4686         (MAX_CODE_ALIGN_VALUE): Likewise.
4687         * doc/invoke.texi: Document maximum allowed option value for
4688         all -falign-* options.
4689
4690 2018-02-19  Jakub Jelinek  <jakub@redhat.com>
4691
4692         PR target/84146
4693         * reg-notes.def (REG_CALL_ARG_LOCATION): New reg note.
4694         * insn-notes.def (NOTE_INSN_CALL_ARG_LOCATION): Remove.
4695         * var-tracking.c (emit_note_insn_var_location): Remove all references
4696         to NOTE_INSN_CALL_ARG_LOCATION.
4697         (emit_notes_in_bb): Emit arguments as REG_CALL_ARG_LOCATION note on
4698         the CALL_INSN rather than separate NOTE_INSN_CALL_ARG_LOCATION note.
4699         Use copy_rtx_if_shared.
4700         * dwarf2out.c (gen_subprogram_die): Use XEXP with 0 instead of
4701         NOTE_VAR_LOCATION on ca_loc->call_arg_loc_note.
4702         (dwarf2out_var_location): Remove handling of
4703         NOTE_INSN_CALL_ARG_LOCATION, instead handle REG_CALL_ARG_LOCATION note
4704         on call_insn.
4705         * final.c (final_scan_insn): Remove all references to
4706         NOTE_INSN_CALL_ARG_LOCATION.
4707         (rest_of_clean_state): Likewise.  Remove REG_CALL_ARG_LOCATION notes
4708         before dumping final insns.
4709         * except.c (emit_note_eh_region_end): Remove all references to
4710         NOTE_INSN_CALL_ARG_LOCATION.
4711         * config/alpha/alpha.c (alpha_pad_function_end): Likewise.
4712         * config/c6x/c6x.c (c6x_gen_bundles): Likewise.
4713         * config/arc/arc.c (hwloop_optimize): Likewise.
4714         * config/arm/arm.c (create_fix_barrier): Likewise.
4715         * config/s390/s390.c (s390_chunkify_start): Likewise.
4716         * config/sh/sh.c (find_barrier): Likewise.
4717         * config/i386/i386.c (rest_of_insert_endbranch,
4718         ix86_seh_fixup_eh_fallthru): Likewise.
4719         * config/xtensa/xtensa.c (hwloop_optimize): Likewise.
4720         * config/iq2000/iq2000.c (final_prescan_insn): Likewise.
4721         * config/frv/frv.c (frv_function_prologue): Likewise.
4722         * emit-rtl.c (try_split): Likewise.  Copy over REG_CALL_ARG_LOCATION
4723         reg note.
4724         (note_outside_basic_block_p): Remove all references to
4725         NOTE_INSN_CALL_ARG_LOCATION.
4726         * gengtype.c (adjust_field_rtx_def): Likewise.
4727         * print-rtl.c (rtx_writer::print_rtx_operand_code_0, print_insn):
4728         Likewise.
4729         * jump.c (cleanup_barriers, delete_related_insns): Likewise.
4730         * cfgrtl.c (force_nonfallthru_and_redirect): Likewise.
4731
4732         PR c++/84444
4733         * builtins.c (builtin_mathfn_code): Don't check if CALL_EXPR_FN (t)
4734         is ADDR_EXPR.
4735
4736         PR tree-optimization/84452
4737         * tree-vect-patterns.c (vect_recog_pow_pattern): Don't call
4738         expand_simd_clones if targetm.simd_clone.compute_vecsize_and_simdlen
4739         is NULL.
4740
4741 2018-02-19  Martin Liska  <mliska@suse.cz>
4742
4743         PR sanitizer/82183
4744         * passes.def: Put pass_sancov_O0 before pass_lower_switch with -O0.
4745
4746 2018-02-19  Martin Liska  <mliska@suse.cz>
4747             Richard Sandiford  <richard.sandiford@linaro.org>
4748
4749         PR tree-optimization/82491
4750         * gimple-fold.c (get_base_constructor): Make earlier bail out
4751         to prevent ubsan.
4752
4753 2018-02-19  Carl Love  <cel@us.ibm.com>
4754
4755         * config/rs6000/rs6000-builtin.def: Change NEG macro expansions from
4756         BU_ALTIVEC_A to BU_P8V_AV_1 and BU_ALTIVEC_OVERLOAD_1 to
4757         BU_P8V_OVERLOAD_1.
4758         * config/rs6000/rs6000-c.c: Change ALTIVEC_BUILTIN_VEC_NEG to
4759         P8V_BUILTIN_VEC_NEG.
4760
4761 2018-02-19  Sebastian Perta  <sebastian.perta@renesas.com>
4762
4763         * config/rl78/rl78.md (movdf): New define expand.
4764
4765 2018-02-19  Martin Liska  <mliska@suse.cz>
4766
4767         PR other/80589
4768         * doc/invoke.texi: Fix typo.
4769         * params.def (PARAM_MAX_LOOP_HEADER_INSNS): Likewise.
4770
4771 2018-02-18  Segher Boessenkool  <segher@kernel.crashing.org>
4772
4773         * config/rs6000/rs6000.c (rs6000_option_override_internal): Don't
4774         handle rs6000_single_float and rs6000_double_float specially for
4775         e500 family CPUs.
4776
4777 2018-02-16  Jeff Law  <law@redhat.com>
4778
4779         * config/rx/rx.c (add_pop_cfi_notes): New function.;
4780         (pop_regs): Use it.
4781
4782 2018-02-16  Jakub Jelinek  <jakub@redhat.com>
4783
4784         PR ipa/84425
4785         * ipa-inline.c (inline_small_functions): Fix a typo.
4786
4787 2018-02-16  Nathan Sidwell  <nathan@acm.org>
4788
4789         * doc/extend.texi (Backwards Compatibility): Americanize 'behaviour'.
4790
4791 2018-02-16  Carl Love  <cel@us.ibm.com>
4792
4793         * config/rs6000/rs6000-builtin.def: Add BU_P8V_VSX_2 macro definition.
4794         Change FLOAT2 expansions from BU_VSX_2 to BU_P8V_VSX_2 and
4795         from BU_VSX_OVERLOAD_2 to BU_P8V_OVERLOAD_2.
4796         * config/rs6000/rs6000-c.c: Changed macro VSX_BUILTIN_VEC_FLOAT2
4797         expansion to P8V_BUILTIN_VEC_FLOAT2.
4798
4799 2018-02-16  Vladimir Makarov  <vmakarov@redhat.com>
4800
4801         PR rtl-optimization/70023
4802         * lra-constraints.c (inherit_in_ebb): Take hard reg mode of
4803         src_regno into account.
4804
4805 2018-02-16  Carl Love  <cel@us.ibm.com>
4806
4807         * config/rs6000/altivec.h: Remove vec_vextract4b and vec_vinsert4b.
4808         * config/rs6000/rs6000-builtin.def: Remove macro expansion for
4809         VEXTRACT4B, VINSERT4B, VINSERT4B_DI and VEXTRACT4B.
4810         * config/rs6000/rs6000.c: Remove case statements for
4811         P9V_BUILTIN_VEXTRACT4B, P9V_BUILTIN_VEC_VEXTRACT4B,
4812         P9V_BUILTIN_VINSERT4B, P9V_BUILTIN_VINSERT4B_DI,
4813         and P9V_BUILTIN_VEC_VINSERT4B.
4814         * config/rs6000/rs6000-c.c (altivec_expand_builtin): Remove entries for
4815         P9V_BUILTIN_VEC_VEXTRACT4B and P9V_BUILTIN_VEC_VINSERT4B.
4816         * config/rs6000/vsx.md:
4817         * doc/extend.texi: Remove vec_vextract4b, non ABI definitions for
4818         vec_insert4b.
4819
4820 2018-02-16  Carl Love  <cel@us.ibm.com>
4821
4822         * config/rs6000/altivec.h: Add builtin names vec_extract4b
4823         vec_insert4b.
4824         * config/rs6000/rs6000-builtin.def: Add INSERT4B and EXTRACT4B
4825         definitions.
4826         * config/rs6000/rs6000-c.c: Add the definitions for
4827         P9V_BUILTIN_VEC_EXTRACT4B and P9V_BUILTIN_VEC_INSERT4B.
4828         * config/rs6000/rs6000.c (altivec_expand_builtin): Add
4829         P9V_BUILTIN_EXTRACT4B and P9V_BUILTIN_INSERT4B case statements.
4830         * config/rs6000/vsx.md: Add define_insn extract4b.  Add define_expand
4831         definition for insert4b and define insn *insert3b_internal.
4832         * doc/extend.texi: Add documentation for vec_extract4b.
4833
4834 2018-02-16  Nathan Sidwell  <nathan@acm.org>
4835
4836         * doc/extend.texi (Backwards Compatibility): Mention friend
4837         injection.  Note for-scope is deprecated.
4838         * doc/invoke.texi (-ffriend-injection): Deprecate.
4839
4840 2018-02-16  Segher Boessenkool  <segher@kernel.crashing.org>
4841
4842         * combine.c (try_combine): When adjusting LOG_LINKS for the destination
4843         that moved to I2, also allow destinations that are a paradoxical
4844         subreg (instead of a normal reg).
4845
4846 2018-02-16  Oleg Endo  <olegendo@gcc.gnu.org>
4847
4848         PR target/83831
4849         * config/rx/rx.c (rx_fuse_in_memory_bitop): Convert shift operand
4850         to QImode.
4851
4852 2018-02-16  Richard Biener  <rguenther@suse.de>
4853
4854         PR tree-optimization/84037
4855         PR tree-optimization/84016
4856         PR target/82862
4857         * config/i386/i386.c (ix86_builtin_vectorization_cost):
4858         Adjust vec_construct for the fact we need additional higher latency
4859         128bit inserts for AVX256 and AVX512 vector builds.
4860         (ix86_add_stmt_cost): Scale vector construction cost for
4861         elementwise loads.
4862
4863 2018-02-16  Richard Biener  <rguenther@suse.de>
4864
4865         PR tree-optimization/84417
4866         * tree-ssa.c (non_rewritable_mem_ref_base): Properly constrain
4867         the MEM_REF offset when conversion to BIT_FIELD_REF is desired.
4868         (non_rewritable_lvalue_p): Likewise, use poly-ints.
4869
4870 2018-02-16  Martin Liska  <mliska@suse.cz>
4871
4872         PR sanitizer/84307
4873         * internal-fn.def (ASAN_CHECK): Set proper flags.
4874         (ASAN_MARK): Likewise.
4875
4876 2018-02-16  Julia Koval  <julia.koval@intel.com>
4877
4878         * config/i386/i386.c (ix86_option_override_internal): Remove PTA_CLWB
4879         from PTA_CANNONLAKE.
4880
4881 2018-02-16  Jakub Jelinek  <jakub@redhat.com>
4882
4883         PR target/84272
4884         * config/aarch64/cortex-a57-fma-steering.c (fma_forest::merge_forest):
4885         Use ++iter rather than iter++ for std::list iterators.
4886         (func_fma_steering::dfs): Likewise.  Don't delete nodes right away,
4887         defer deleting them until all nodes in the forest are processed.  Do
4888         free even leaf nodes.  Change to_process into auto_vec.
4889
4890         PR bootstrap/84405
4891         * system.h (BROKEN_VALUE_INITIALIZATION): Define for GCC < 4.3.
4892         * vec.h (vec_default_construct): Use memset instead of placement new
4893         if BROKEN_VALUE_INITIALIZATION is defined.
4894         * hash-table.h (hash_table<Descriptor, Allocator>::empty_slow): Use
4895         memset instead of value initialization if BROKEN_VALUE_INITIALIZATION
4896         is defined.
4897
4898         PR rtl-optimization/83723
4899         * lra-int.h (lra_substitute_pseudo): Add DEBUG_P argument.
4900         * lra.c (lra_substitute_pseudo): Likewise.  If true, use
4901         gen_rtx_raw_SUBREG instead of gen_rtx_SUBREG.  Pass DEBUG_P to
4902         recursive calls.
4903         (lra_substitute_pseudo_within_insn): Adjust lra_substitute_pseudo
4904         callers.
4905         * lra-constraints.c (inherit_reload_reg, split_reg): Likewise.
4906
4907 2018-02-16  Eric Botcazou  <ebotcazou@adacore.com>
4908
4909         PR rtl-optimization/81443
4910         * rtlanal.c (num_sign_bit_copies1) <SUBREG>: Do not propagate results
4911         from inner REGs to paradoxical SUBREGs.
4912
4913 2018-02-16  Richard Biener  <rguenther@suse.de>
4914
4915         PR tree-optimization/84399
4916         * graphite-scop-detection.c (scop_detection::stmt_simple_for_scop_p):
4917         For operands we can analyze at their definition make sure we can
4918         analyze them at each use as well.
4919
4920 2018-02-16  Richard Biener  <rguenther@suse.de>
4921
4922         PR tree-optimization/84190
4923         * tree-ssa.c (non_rewritable_mem_ref_base): Do not touch
4924         volatile accesses if the decl isn't volatile.
4925
4926 2018-02-15  Jason Merrill  <jason@redhat.com>
4927
4928         PR c++/84314 - ICE with templates and fastcall attribute.
4929         * attribs.c (build_type_attribute_qual_variant): Don't clobber
4930         TYPE_CANONICAL on an existing type.
4931
4932 2018-02-15  Jakub Jelinek  <jakub@redhat.com>
4933
4934         PR tree-optimization/84383
4935         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Don't look at
4936         dstoff nor call operand_equal_p if dstbase is NULL.
4937
4938         PR tree-optimization/84334
4939         * match.pd ((A +- CST1) +- CST2 -> A + CST3): If A is
4940         also a CONSTANT_CLASS_P, punt.
4941
4942 2018-02-14  Jim Wilson  <jimw@sifive.com>
4943
4944         * config/riscv/riscv.c (riscv_first_stack_step): Move locals after
4945         first SMALL_OPERAND check.  New local min_second_step.  Move assert
4946         to where locals are set.  Add TARGET_RVC support.
4947         * config/riscv/riscv.h (C_SxSP_BITS, SWSP_REACH, SDSP_REACH): New.
4948
4949 2018-02-14  Indu Bhagat  <indu.bhagat@oracle.com>
4950
4951         * doc/invoke.texi: Correct -Wformat-overflow code sample.
4952
4953 2018-02-14  Martin Sebor  <msebor@redhat.com>
4954
4955         PR tree-optimization/83698
4956         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): For
4957         arrays constrain the offset range to their bounds.
4958         (builtin_access::strcat_overlap): Adjust the bounds of overlap offset.
4959         (builtin_access::overlap): Avoid setting the size of overlap if it's
4960         already been set.
4961         (maybe_diag_overlap): Also consider arrays when deciding what values
4962         of offsets to include in diagnostics.
4963
4964 2018-02-14  Martin Sebor  <msebor@redhat.com>
4965
4966         PR c/84108
4967         * attribs.c (diag_attr_exclusions): Consider the exclusion(s)
4968         that correspond to the kind of a declaration.
4969
4970 2018-02-14  John David Anglin  <danglin@gcc.gnu.org>
4971
4972         PR target/83984
4973         * config/pa/pa.md: Load address of PIC label using the linkage table
4974         if the label is nonlocal.
4975
4976 2018-02-14  Kelvin Nilsen  <kelvin@gcc.gnu.org>
4977
4978         * config/rs6000/rs6000.c (rs6000_option_override_internal): Issue
4979         warning message if user requests -maltivec=be.
4980         * doc/invoke.texi: Document deprecation of -maltivec=be.
4981
4982 2018-02-14  Will Schmidt  <will_schmidt@vnet.ibm.com>
4983
4984         PR target/84220
4985         * config/rs6000/rs6000-c.c: Update definitions for
4986         ALTIVEC_BUILTIN_VEC_SLD, ALTIVEC_BUILTIN_VEC_SLDW,
4987         VEC_XXSLDWI and ALTIVEC_BUILTIN_VEC_XXPERMDI builtins.
4988
4989 2018-02-14  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
4990
4991         PR target/84239
4992         * config/i386/cetintrin.h: Remove _rdssp[d|q] and
4993         add _get_ssp intrinsics. Remove argument from
4994         __builtin_ia32_rdssp[d|q].
4995         * config/i386/i386-builtin-types.def: Add UINT_FTYPE_VOID.
4996         * config/i386/i386-builtin.def: Remove argument from
4997         __builtin_ia32_rdssp[d|q].
4998         * config/i386/i386.c: Use UINT_FTYPE_VOID. Use
4999         ix86_expand_special_args_builtin for _rdssp[d|q].
5000         * config/i386/i386.md: Remove argument from rdssp[si|di] insn.
5001         Clear register before usage.
5002         * doc/extend.texi: Remove argument from __builtin_ia32_rdssp[d|q].
5003         Add documentation for new _get_ssp and _inc_ssp intrinsics.
5004
5005 2018-02-14  Richard Sandiford  <richard.sandiford@linaro.org>
5006
5007         PR tree-optimization/84357
5008         * tree-data-ref.c (object_address_invariant_in_loop_p): Check
5009         operand 1 of an ARRAY_REF too.
5010
5011 2018-02-14  Oleg Endo  <olegendo@gcc.gnu.org>
5012
5013         PR target/83831
5014         * config/rx/rx-protos.h (rx_reg_dead_or_unused_after_insn,
5015         rx_copy_reg_dead_or_unused_notes, rx_fuse_in_memory_bitop): New
5016         declarations.
5017         (set_of_reg): New struct.
5018         (rx_find_set_of_reg, rx_find_use_of_reg): New functions.
5019         * config/rx/rx.c (rx_reg_dead_or_unused_after_insn,
5020         rx_copy_reg_dead_or_unused_notes, rx_fuse_in_memory_bitop): New
5021         functions.
5022         * config/rx/rx.md (andsi3, iorsi3, xorsi3): Convert to insn_and_split.
5023         Split into bitclr, bitset, bitinvert patterns if appropriate.
5024         (*bitset, *bitinvert, *bitclr): Convert to named insn_and_split and
5025         use rx_fuse_in_memory_bitop.
5026         (*bitset_in_memory, *bitinvert_in_memory, *bitclr_in_memory): Convert
5027         to named insn, correct maximum insn length.
5028
5029 2018-02-14  Jozef Lawrynowicz  <jozefl.gcc@gmail.com>
5030
5031         PR target/79242
5032         * machmode.def: Define a complex mode for PARTIAL_INT.
5033         * genmodes.c (complex_class): Return MODE_COMPLEX_INT for
5034         MODE_PARTIAL_INT.
5035         * doc/rtl.texi: Document CSPImode.
5036         * config/msp430/msp430.c (msp430_hard_regno_nregs): Add CPSImode
5037         handling.
5038         (msp430_hard_regno_nregs_with_padding): Likewise.
5039
5040 2018-02-13  Peter Bergner  <bergner@vnet.ibm.com>
5041
5042         PR target/84279
5043         * config/rs6000/rs6000.c (mem_operand_gpr): Disallow altivec addresses.
5044
5045 2018-02-13  Segher Boessenkool  <segher@kernel.crashing.org>
5046
5047         PR rtl-optimization/84169
5048         * combine.c (try_combine): New variable split_i2i3.  Set it to true if
5049         we generated a parallel as new i3 and we split that to new i2 and i3
5050         instructions.  Handle split_i2i3 similar to swap_i2i3: scan the
5051         LOG_LINKs of i3 to see which of those need to link to i2 now.  Link
5052         those to i2, not i1.  Partially rewrite this scan code.
5053
5054 2018-02-13  Jakub Jelinek  <jakub@redhat.com>
5055
5056         PR c/82210
5057         * stor-layout.c (place_field): For variable length fields, adjust
5058         offset_align afterwards not just based on the field's alignment,
5059         but also on the size.
5060
5061         PR middle-end/84309
5062         * match.pd (pow(C,x) -> exp(log(C)*x)): Use exp2s and log2s instead
5063         of exps and logs in the use_exp2 case.
5064
5065 2018-02-13  Jeff Law  <law@redhat.com>
5066
5067         * config/rl/rl78.c (rl78_attribute_table): Fix terminator and
5068         entry for "vector".
5069
5070         * config/rl78/rl78.c (rl78_handle_func_attribute): Mark
5071         ARGS as unused.
5072
5073 2018-02-13  Alexandre Oliva  <aoliva@redhat.com>
5074
5075         PR debug/84342
5076         PR debug/84319
5077         * common.opt (gas-loc-support, gas-locview-support): New.
5078         (ginline-points, ginternal-reset-location-views): New.
5079         * doc/invoke.texi: Document them.  Use @itemx where intended.
5080         (gvariable-location-views): Adjust.
5081         * target.def (reset_location_view): New.
5082         * doc/tm.texi.in (DWARF2_ASM_VIEW_DEBUG_INFO): New.
5083         (TARGET_RESET_LOCATION_VIEW): New.
5084         * doc/tm.texi: Rebuilt.
5085         * dwarf2out.c (dwarf2out_default_as_loc_support): New.
5086         (dwarf2out_default_as_locview_support): New.
5087         (output_asm_line_debug_info): Use option variables.
5088         (dwarf2out_maybe_output_loclist_view_pair): Likewise.
5089         (output_loc_list): Likewise.
5090         (add_high_low_attributes): Check option variables.
5091         Don't output entry view attribute in strict mode.
5092         (gen_inlined_subroutine_die): Check option variables.
5093         (dwarf2out_inline_entry): Likewise.
5094         (init_sections_and_labels): Likewise.
5095         (dwarf2out_early_finish): Likewise.
5096         (maybe_reset_location_view): New, from...
5097         (dwarf2out_var_location): ... here.  Call it.
5098         * debug.h (dwarf2out_default_as_loc_support): Declare.
5099         (dwarf2out_default_as_locview_support): Declare.
5100         * hooks.c (hook_int_rtx_insn_0): New.
5101         * hooks.h (hook_int_rtx_insn_0): Declare.
5102         * toplev.c (process_options): Take -gas-loc-support and
5103         -gas-locview-support from dwarf2out.  Enable
5104         -gvariable-location-views by default only with locview
5105         assembler support.  Enable -ginternal-reset-location-views by
5106         default only if the target defines the corresponding hook.
5107         Enable -ginline-points by default if location views are
5108         enabled; force it disabled if statement frontiers are
5109         disabled.
5110         * tree-inline.c (expand_call_inline): Check option variables.
5111         * tree-ssa-live.c (remove_unused_scope_block_p): Likewise.
5112
5113 2018-02-13  Richard Sandiford  <richard.sandiford@linaro.org>
5114
5115         PR tree-optimization/84321
5116         * tree-vrp.c (intersect_range_with_nonzero_bits): Fix VR_ANTI_RANGE
5117         handling.  Also check whether the anti-range contains any values
5118         that satisfy the mask; switch to a VR_RANGE if not.
5119
5120 2018-02-13  Paolo Bonzini  <bonzini@gnu.org>
5121
5122         PR sanitizer/84340
5123         * internal-fn.def (ASAN_CHECK, ASAN_MARK): Revert changes to fnspec.
5124
5125 2018-02-13  Martin Jambor  <mjambor@suse.cz>
5126
5127         PR c++/83990
5128         * ipa-param-manipulation.c (ipa_modify_call_arguments): Use location
5129         of call statements, also set location of a load to a temporary.
5130
5131 2018-02-13  Sebastian Perta  <sebastian.perta@renesas.com>
5132
5133         * config/rl78/rl78.c (add_vector_labels): New function.
5134         * config/rl78/rl78.c (rl78_handle_vector_attribute): New function.
5135         * config/rl78/rl78.c (rl78_start_function): Call add_vector_labels.
5136         * config/rl78/rl78.c (rl78_handle_func_attribute): Removed the assert
5137         which checks that no arguments are passed.
5138         * config/rl78/rl78.c (rl78_attribute_table): Add "vector" attribute.
5139         * doc/extend.texi: Documentation for the new attribute.
5140
5141 2018-02-13  Andreas Schwab  <schwab@suse.de>
5142
5143         * config/riscv/linux.h (CPP_SPEC): Define.
5144
5145 2018-02-13  Jakub Jelinek  <jakub@redhat.com>
5146
5147         PR target/84335
5148         * config/i386/i386.c (ix86_init_mmx_sse_builtins): Pass
5149         OPTION_MASK_ISA_AES | OPTION_MASK_ISA_SSE2 instead of
5150         OPTION_MASK_ISA_AES as first argument to def_builtin_const
5151         for AES builtins.  Pass OPTION_MASK_ISA_PCLMUL | OPTION_MASK_ISA_SSE2
5152         instead of OPTION_MASK_ISA_PCLMUL as first argument to
5153         def_builtin_const for __builtin_ia32_pclmulqdq128 builtin.
5154         * config/i386/wmmintrin.h: If __SSE2__ is not defined, enable it
5155         temporarily for AES and PCLMUL builtins.
5156
5157         PR tree-optimization/84339
5158         * gimple-fold.c (get_range_strlen): Set *FLEXP to true when handling
5159         ARRAY_REF where first operand is array_at_struct_end_p COMPONENT_REF.
5160         Formatting fixes.
5161
5162         PR middle-end/84309
5163         * match.pd (pow(C,x) -> exp(log(C)*x)): Optimize instead into
5164         exp2(log2(C)*x) if C is a power of 2 and c99 runtime is available.
5165         * generic-match-head.c (canonicalize_math_after_vectorization_p): New
5166         inline function.
5167         * gimple-match-head.c (canonicalize_math_after_vectorization_p): New
5168         inline function.
5169         * omp-simd-clone.h: New file.
5170         * omp-simd-clone.c: Include omp-simd-clone.h.
5171         (expand_simd_clones): No longer static.
5172         * tree-vect-patterns.c: Include fold-const-call.h, attribs.h,
5173         cgraph.h and omp-simd-clone.h.
5174         (vect_recog_pow_pattern): Optimize pow(C,x) to exp(log(C)*x).
5175         (vect_recog_widen_shift_pattern): Formatting fix.
5176         (vect_pattern_recog_1): Don't check optab for calls.
5177
5178         PR target/84336
5179         * config/i386/sse.md (<avx512>_vpermi2var<mode>3_mask): Force
5180         operands[2] into a REG before using gen_lowpart on it.
5181
5182 2018-02-12  Jeff Law  <law@redhat.com>
5183
5184         PR target/83760
5185         * config/sh/sh.c (find_barrier): Consider a sibling call
5186         a barrier as well.
5187
5188         * cse.c (try_back_substitute_reg): Move any REG_ARGS_SIZE note when
5189         successfully back substituting a reg.
5190
5191 2018-02-12  Richard Biener  <rguenther@suse.de>
5192
5193         PR tree-optimization/84037
5194         * tree-vect-slp.c (vect_analyze_slp_cost): Add visited
5195         parameter, move visited init to caller.
5196         (vect_slp_analyze_operations): Separate cost from validity
5197         check, initialize visited once for all instances.
5198         (vect_schedule_slp): Analyze map to CSE vectorized nodes once
5199         for all instances.
5200         * tree-vect-stmts.c (vect_model_simple_cost): Make early
5201         out an assert.
5202         (vect_model_promotion_demotion_cost): Likewise.
5203         (vectorizable_bswap): Guard cost modeling with !slp_node
5204         instead of !PURE_SLP_STMT to avoid double-counting on hybrid
5205         SLP stmts.
5206         (vectorizable_call): Likewise.
5207         (vectorizable_conversion): Likewise.
5208         (vectorizable_assignment): Likewise.
5209         (vectorizable_shift): Likewise.
5210         (vectorizable_operation): Likewise.
5211         (vectorizable_store): Likewise.
5212         (vectorizable_load): Likewise.
5213         (vectorizable_condition): Likewise.
5214         (vectorizable_comparison): Likewise.
5215
5216 2018-02-12  Paolo Bonzini  <bonzini@gnu.org>
5217
5218         PR sanitizer/84307
5219         * internal-fn.def (ASAN_CHECK): Fix fnspec to account for return value.
5220         (ASAN_MARK): Fix fnspec to account for return value, change pointer
5221         argument from 'R' to 'W' so that the pointed-to datum is clobbered.
5222
5223 2018-02-08  Jan Hubicka  <hubicka@ucw.cz>
5224
5225         PR middle-end/83665
5226         * params.def (inline-min-speedup): Increase from 8 to 15.
5227         (max-inline-insns-auto): Decrease from 40 to 30.
5228         * ipa-split.c (consider_split): Add some buffer for function to
5229         be considered inlining candidate.
5230         * invoke.texi (max-inline-insns-auto, inline-min-speedup): UPdate
5231         default values.
5232
5233 2018-02-12  Richard Biener  <rguenther@suse.de>
5234
5235         PR tree-optimization/84037
5236         * tree-vect-slp.c (vect_build_slp_tree_2): Try swapping the
5237         matched stmts if we cannot swap the non-matched ones.
5238
5239 2018-02-12  Olga Makhotina  <olga.makhotina@intel.com>
5240
5241         * config/i386/avx512fintrin.h (_mm_mask_scalef_round_sd,
5242         _mm_maskz_scalef_round_sd, _mm_mask_scalef_round_ss,
5243         _mm_maskz_scalef_round_ss): New intrinsics.
5244         (__builtin_ia32_scalefsd_round, __builtin_ia32_scalefss_round): Fix.
5245         * config/i386/i386-builtin.def (__builtin_ia32_scalefsd_round,
5246         __builtin_ia32_scalefss_round): Remove.
5247         (__builtin_ia32_scalefsd_mask_round,
5248         __builtin_ia32_scalefss_mask_round): New intrinsics.
5249         * config/i386/sse.md (vmscalef<mode><round_name>): Renamed to ...
5250         (vmscalef<mode><mask_scalar_name><round_scalar_name>): ... this.
5251         ((match_operand:VF_128 2 "<round_nimm_predicate>"
5252         "<round_constraint>")): Changed to ...
5253         ((match_operand:VF_128 2 "<round_scalar_nimm_predicate>"
5254         "<round_scalar_constraint>")): ... this.
5255         ("vscalef<ssescalarmodesuffix>\t{<round_op3>%2, %1, %0|
5256         %0, %1, %2<round_op3>}"): Changed to ...
5257         ("vscalef<ssescalarmodesuffix>\t{<round_scalar_mask_op3>%2, %1,
5258         %0<mask_scalar_operand3>|%0<mask_scalar_operand3>, %1,
5259         %2<round_scalar_mask_op3>}"): ... this.
5260         * config/i386/subst.md (round_scalar_nimm_predicate): New.
5261
5262 2018-02-12  Olga Makhotina  <olga.makhotina@intel.com>
5263
5264         * config/i386/avx512fintrin.h (_mm_mask_sqrt_round_sd)
5265         (_mm_maskz_sqrt_round_sd, _mm_mask_sqrt_round_ss)
5266         (_mm_maskz_sqrt_round_ss): New intrinsics.
5267         (__builtin_ia32_sqrtsd_round, __builtin_ia32_sqrtss_round): Remove.
5268         (__builtin_ia32_sqrtsd_mask_round)
5269         (__builtin_ia32_sqrtss_mask_round): New builtins.
5270         * config/i386/i386-builtin.def (__builtin_ia32_sqrtsd_round)
5271         (__builtin_ia32_sqrtss_round): Remove.
5272         (__builtin_ia32_sqrtsd_mask_round)
5273         (__builtin_ia32_sqrtss_mask_round): New builtins.
5274         * config/i386/sse.md (vmsqrt<mode>2<round_name>): Renamed to ...
5275         (vmsqrt<mode>2<mask_scalar_name><round_scalar_name>): ... this.
5276         ((match_operand:VF_128 1 "vector_operand"
5277         "xBm,<round_constraint>")): Changed to ...
5278         ((match_operand:VF_128 1 "vector_operand"
5279         "xBm,<round_scalar_constraint>")): ... this.
5280         (vsqrt<ssescalarmodesuffix>\t{<round_op3>%1, %2, %0|
5281         %0, %2, %<iptr>1<round_op3>}): Changed to ...
5282         (vsqrt<ssescalarmodesuffix>\t{<round_scalar_mask_op3>%1, %2,
5283         %0<mask_scalar_operand3>|%0<mask_scalar_operand3>, %2,
5284         %<iptr>1<round_scalar_mask_op3>}): ... this.
5285         ((set_attr "prefix" "<round_prefix>")): Changed to ...
5286         ((set_attr "prefix" "<round_scalar_prefix>")): ... this.
5287
5288 2018-02-11  Steven Munroe  <munroesj@gcc.gnu.org>
5289
5290         PR target/84266
5291         * config/rs6000/mmintrin.h (_mm_cmpeq_pi32 [_ARCH_PWR9]):
5292         Cast vec_cmpeq result to correct type.
5293         * config/rs6000/mmintrin.h (_mm_cmpgt_pi32 [_ARCH_PWR9]):
5294         Cast vec_cmpgt result to correct type.
5295
5296 2018-02-11  Alexandre Oliva  <aoliva@redhat.com>
5297
5298         * final.c (final_scan_insn_1): Renamed from...
5299         (final_scan_insn): ... this.  New wrapper, to recover
5300         seen from the outermost call in recursive ones.
5301         * config/sparc/sparc.c (output_return): Drop seen from call.
5302         (output_sibcall): Likewise.
5303         * config/visium/visium.c (output_branch): Likewise.
5304
5305 2018-02-10  John David Anglin  <danglin@gcc.gnu.org>
5306
5307         * config/pa/pa.c (hppa_profile_hook): Mark SYMBOL_REF for _mcount as
5308         function label.
5309
5310 2018-02-10  Alan Modra  <amodra@gmail.com>
5311
5312         PR target/84300
5313         * config/rs6000/rs6000.md (split_stack_return): Remove (use ..).
5314         Specify LR as an input.
5315
5316 2018-02-10  Jakub Jelinek  <jakub@redhat.com>
5317
5318         PR sanitizer/83987
5319         * omp-low.c (maybe_remove_omp_member_access_dummy_vars,
5320         remove_member_access_dummy_vars): New functions.
5321         (lower_omp_for, lower_omp_taskreg, lower_omp_target,
5322         lower_omp_1, execute_lower_omp): Use them.
5323
5324         PR rtl-optimization/84308
5325         * shrink-wrap.c (spread_components): Release todo vector.
5326
5327 2018-02-09  Vladimir Makarov  <vmakarov@redhat.com>
5328
5329         PR rtl-optimization/57193
5330         * ira-color.c (struct allocno_color_data): Add member
5331         conflict_allocno_hard_prefs.
5332         (update_conflict_allocno_hard_prefs): New.
5333         (bucket_allocno_compare_func): Add a preference based on
5334         conflict_allocno_hard_prefs.
5335         (push_allocno_to_stack): Update conflict_allocno_hard_prefs.
5336         (color_allocnos): Remove a dead code.  Initiate
5337         conflict_allocno_hard_prefs.  Call update_costs_from_prefs.
5338
5339 2018-02-09  Jakub Jelinek  <jakub@redhat.com>
5340
5341         PR target/84226
5342         * config/rs6000/vsx.md (p9_xxbrq_v16qi): Change input operand
5343         constraint from =wa to wa.  Avoid a subreg on the output operand,
5344         instead use a pseudo and subreg it in a move.
5345         (p9_xxbrd_<mode>): Changed to ...
5346         (p9_xxbrd_v2di): ... this insn, without VSX_D iterator.
5347         (p9_xxbrd_v2df): New expander.
5348         (p9_xxbrw_<mode>): Changed to ...
5349         (p9_xxbrw_v4si): ... this insn, without VSX_W iterator.
5350         (p9_xxbrw_v4sf): New expander.
5351
5352 2018-02-09  Sebastian Perta  <sebastian.perta@renesas.com>
5353
5354         * config/rx/rx.md (movsicc): Update expander to be matched by GCC.
5355
5356 2018-02-09  Peter Bergner  <bergner@vnet.ibm.com>
5357
5358         PR target/83926
5359         * config/rs6000/vsx.md (vsx_mul_v2di): Handle generating a 64-bit
5360         multiply in 32-bit mode.
5361         (vsx_div_v2di): Handle generating a 64-bit signed divide in 32-bit mode.
5362         (vsx_udiv_v2di): Handle generating a 64-bit unsigned divide in 32-bit
5363         mode.
5364
5365 2018-02-09  Sebastian Perta  <sebastian.perta@renesas.com>
5366
5367         * config/rx/constraints.md (CALL_OP_SYMBOL_REF): Added new constraint
5368         to allow or block "symbol_ref" depending on the value of TARGET_JSR.
5369         * config/rx/rx.md (call_internal): Use CALL_OP_SYMBOL_REF.
5370         * config/rx/rx.md (call_value_internal): Use CALL_OP_SYMBOL_REF.
5371
5372 2018-02-09  Pierre-Marie de Rodat  <derodat@adacore.com>
5373
5374         PR lto/84213
5375         * dwarf2out.c (is_trivial_indirect_ref): New function.
5376         (dwarf2out_late_global_decl): Do not generate a location
5377         attribute for variables that have a non-trivial DECL_VALUE_EXPR
5378         and that are not defined in the current unit.
5379
5380 2018-02-09  Eric Botcazou  <ebotcazou@adacore.com>
5381
5382         * optabs.c (prepare_cmp_insn): Try harder to emit a direct comparison
5383         instead of a libcall for UNORDERED.
5384
5385 2018-02-09  Tamar Christina  <tamar.christina@arm.com>
5386
5387         PR target/82641
5388         * config/arm/arm-c.c (arm_cpu_builtins): Un-define __ARM_FEATURE_LDREX,
5389         __ARM_ARCH_PROFILE, __ARM_ARCH_ISA_THUMB, __ARM_FP and __ARM_NEON_FP.
5390
5391 2018-02-09  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
5392
5393         PR target/PR84295
5394         * config/s390/s390.c (s390_set_current_function): Invoke
5395         s390_indirect_branch_settings also if fndecl didn't change.
5396
5397 2018-02-09  Alexandre Oliva  <aoliva@redhat.com>
5398
5399         * config/rs6000/rs6000.md (blockage): Set length to zero.
5400
5401 2018-02-09  Eric Botcazou  <ebotcazou@adacore.com>
5402
5403         * expr.c (optimize_bitfield_assignment_op): Remove obsolete assertion.
5404
5405 2018-02-09  Jakub Jelinek  <jakub@redhat.com>
5406
5407         PR sanitizer/84285
5408         * gcc.c (STATIC_LIBASAN_LIBS, STATIC_LIBTSAN_LIBS,
5409         STATIC_LIBLSAN_LIBS, STATIC_LIBUBSAN_LIBS): Handle -static like
5410         -static-lib*san.
5411
5412         PR debug/84252
5413         * var-tracking.c (vt_add_function_parameter): Punt for non-onepart
5414         PARALLEL incoming that failed vt_get_decl_and_offset check.
5415
5416         PR middle-end/84237
5417         * output.h (bss_initializer_p): Add NAMED argument, defaulted to false.
5418         * varasm.c (bss_initializer_p): Add NAMED argument, if true, ignore
5419         TREE_READONLY bit.
5420         (get_variable_section): For decls in named .bss* sections pass true as
5421         second argument to bss_initializer_p.
5422
5423 2018-02-09  Marek Polacek  <polacek@redhat.com>
5424             Jakub Jelinek  <jakub@redhat.com>
5425
5426         PR c++/83659
5427         * fold-const.c (fold_indirect_ref_1): Use VECTOR_TYPE_P macro.
5428         Formatting fixes.  Verify first that tree_fits_poly_int64_p (op01).
5429         Sync some changes from cxx_fold_indirect_ref.
5430
5431 2018-02-09  Alexandre Oliva  <aoliva@redhat.com>
5432
5433         * cfgexpand.c (expand_gimple_basic_block): Handle inline entry
5434         markers.
5435         * dwarf2out.c (dwarf2_debug_hooks): Enable inline_entry hook.
5436         (BLOCK_INLINE_ENTRY_LABEL): New.
5437         (dwarf2out_var_location): Disregard inline entry markers.
5438         (inline_entry_data): New struct.
5439         (inline_entry_data_hasher): New hashtable type.
5440         (inline_entry_data_hasher::hash): New.
5441         (inline_entry_data_hasher::equal): New.
5442         (inline_entry_data_table): New variable.
5443         (add_high_low_attributes): Add DW_AT_entry_pc and
5444         DW_AT_GNU_entry_view attributes if a pending entry is found
5445         in inline_entry_data_table.  Add old entry_pc attribute only
5446         if debug nonbinding markers are disabled.
5447         (gen_inlined_subroutine_die): Set BLOCK_DIE if nonbinding
5448         markers are enabled.
5449         (block_within_block_p, dwarf2out_inline_entry): New.
5450         (dwarf2out_finish): Check that no entries remained in
5451         inline_entry_data_table.
5452         * final.c (reemit_insn_block_notes): Handle inline entry notes.
5453         (final_scan_insn, notice_source_line): Likewise.
5454         (rest_of_clean_state): Skip inline entry markers.
5455         * gimple-pretty-print.c (dump_gimple_debug): Handle inline entry
5456         markers.
5457         * gimple.c (gimple_build_debug_inline_entry): New.
5458         * gimple.h (enum gimple_debug_subcode): Add
5459         GIMPLE_DEBUG_INLINE_ENTRY.
5460         (gimple_build_debug_inline_entry): Declare.
5461         (gimple_debug_inline_entry_p): New.
5462         (gimple_debug_nonbind_marker_p): Adjust.
5463         * insn-notes.def (INLINE_ENTRY): New.
5464         * print-rtl.c (rtx_writer::print_rtx_operand_code_0): Handle
5465         inline entry marker notes.
5466         (print_insn): Likewise.
5467         * rtl.h (NOTE_MARKER_P): Add INLINE_ENTRY support.
5468         (INSN_DEBUG_MARKER_KIND): Likewise.
5469         (GEN_RTX_DEBUG_MARKER_INLINE_ENTRY_PAT): New.
5470         * tree-inline.c (expand_call_inline): Build and insert
5471         debug_inline_entry stmt.
5472         * tree-ssa-live.c (remove_unused_scope_block_p): Preserve
5473         inline entry blocks early, if nonbind markers are enabled.
5474         (dump_scope_block): Dump fragment info.
5475         * var-tracking.c (reemit_marker_as_note): Handle inline entry note.
5476         * doc/gimple.texi (gimple_debug_inline_entry_p): New.
5477         (gimple_build_debug_inline_entry): New.
5478         * doc/invoke.texi (gstatement-frontiers, gno-statement-frontiers):
5479         Enable/disable inline entry points too.
5480         * doc/rtl.texi (NOTE_INSN_INLINE_ENTRY): New.
5481         (DEBUG_INSN): Describe inline entry markers.
5482
5483         * common.opt (gvariable-location-views): New.
5484         (gvariable-location-views=incompat5): New.
5485         * config.in: Rebuilt.
5486         * configure: Rebuilt.
5487         * configure.ac: Test assembler for view support.
5488         * dwarf2asm.c (dw2_asm_output_symname_uleb128): New.
5489         * dwarf2asm.h (dw2_asm_output_symname_uleb128): Declare.
5490         * dwarf2out.c (var_loc_view): New typedef.
5491         (struct dw_loc_list_struct): Add vl_symbol, vbegin, vend.
5492         (dwarf2out_locviews_in_attribute): New.
5493         (dwarf2out_locviews_in_loclist): New.
5494         (dw_val_equal_p): Compare val_view_list of dw_val_class_view_lists.
5495         (enum dw_line_info_opcode): Add LI_adv_address.
5496         (struct dw_line_info_table): Add view.
5497         (RESET_NEXT_VIEW, RESETTING_VIEW_P): New macros.
5498         (DWARF2_ASM_VIEW_DEBUG_INFO): Define default.
5499         (zero_view_p): New variable.
5500         (ZERO_VIEW_P): New macro.
5501         (output_asm_line_debug_info): New.
5502         (struct var_loc_node): Add view.
5503         (add_AT_view_list, AT_loc_list): New.
5504         (add_var_loc_to_decl): Add view param.  Test it against last.
5505         (new_loc_list): Add view params.  Record them.
5506         (AT_loc_list_ptr): Handle loc and view lists.
5507         (view_list_to_loc_list_val_node): New.
5508         (print_dw_val): Handle dw_val_class_view_list.
5509         (size_of_die): Likewise.
5510         (value_format): Likewise.
5511         (loc_list_has_views): New.
5512         (gen_llsym): Set vl_symbol too.
5513         (maybe_gen_llsym, skip_loc_list_entry): New.
5514         (dwarf2out_maybe_output_loclist_view_pair): New.
5515         (output_loc_list): Output view list or entries too.
5516         (output_view_list_offset): New.
5517         (output_die): Handle dw_val_class_view_list.
5518         (output_dwarf_version): New.
5519         (output_compilation_unit_header): Use it.
5520         (output_skeleton_debug_sections): Likewise.
5521         (output_rnglists, output_line_info): Likewise.
5522         (output_pubnames, output_aranges): Update version comments.
5523         (output_one_line_info_table): Output view numbers in asm comments.
5524         (dw_loc_list): Determine current endview, pass it to new_loc_list.
5525         Call maybe_gen_llsym.
5526         (loc_list_from_tree_1): Adjust.
5527         (add_AT_location_description): Create view list attribute if
5528         needed, check it's absent otherwise.
5529         (convert_cfa_to_fb_loc_list): Adjust.
5530         (maybe_emit_file): Call output_asm_line_debug_info for test.
5531         (dwarf2out_var_location): Reset views as needed.  Precompute
5532         add_var_loc_to_decl args.  Call get_attr_min_length only if we have the
5533         attribute.  Set view.
5534         (new_line_info_table): Reset next view.
5535         (set_cur_line_info_table): Call output_asm_line_debug_info for test.
5536         (dwarf2out_source_line): Likewise.  Output view resets and labels to
5537         the assembler, or select appropriate line info opcodes.
5538         (prune_unused_types_walk_attribs): Handle dw_val_class_view_list.
5539         (optimize_string_length): Catch it.  Adjust.
5540         (resolve_addr): Copy vl_symbol along with ll_symbol.  Handle
5541         dw_val_class_view_list, and remove it if no longer needed.
5542         (hash_loc_list): Hash view numbers.
5543         (loc_list_hasher::equal): Compare them.
5544         (optimize_location_lists): Check whether a view list symbol is
5545         needed, and whether the locview attribute is present, and
5546         whether they match.  Remove the locview attribute if no longer
5547         needed.
5548         (index_location_lists): Call skip_loc_list_entry for test.
5549         (dwarf2out_finish): Call output_asm_line_debug_info for test.
5550         Use output_dwarf_version.
5551         * dwarf2out.h (enum dw_val_class): Add dw_val_class_view_list.
5552         (struct dw_val_node): Add val_view_list.
5553         * final.c (SEEN_NEXT_VIEW): New.
5554         (set_next_view_needed): New.
5555         (clear_next_view_needed): New.
5556         (maybe_output_next_view): New.
5557         (final_start_function): Rename to...
5558         (final_start_function_1): ... this.  Take pointer to FIRST,
5559         add SEEN parameter.  Emit param bindings in the initial view.
5560         (final_start_function): Reintroduce SEEN-less interface.
5561         (final): Rename to...
5562         (final_1): ... this.  Take SEEN parameter.  Output final pending
5563         next view at the end.
5564         (final): Reintroduce seen-less interface.
5565         (final_scan_insn): Output pending next view before switching
5566         sections or ending a block.  Mark the next view as needed when
5567         outputting variable locations.  Notify debug backend of section
5568         changes, and of location view changes.
5569         (rest_of_handle_final): Adjust.
5570         * toplev.c (process_options): Autodetect value for debug variable
5571         location views option.  Warn on incompat5 without -gdwarf-5.
5572         * doc/invoke.texi (gvariable-location-views): New.
5573         (gvariable-location-views=incompat5): New.
5574         (gno-variable-location-views): New.
5575
5576 2018-02-08  David Malcolm  <dmalcolm@redhat.com>
5577
5578         PR tree-optimization/84136
5579         * tree-cfg.c (find_taken_edge_computed_goto): Remove assertion
5580         that the result of find_edge is non-NULL.
5581
5582 2018-02-08  Sergey Shalnov  <sergey.shalnov@intel.com>
5583
5584         PR target/83008
5585         * config/i386/x86-tune-costs.h (skylake_cost): Fix cost of
5586         storing integer register in SImode.  Fix cost of 256 and 512
5587         byte aligned SSE register store.
5588
5589 2018-02-08  Sergey Shalnov  <sergey.shalnov@intel.com>
5590
5591         * config/i386/i386.c (ix86_multiplication_cost): Fix
5592         multiplication cost for TARGET_AVX512DQ.
5593
5594 2018-02-08  Marek Polacek  <polacek@redhat.com>
5595
5596         PR tree-optimization/84238
5597         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Verify the result of
5598         get_range_strlen.
5599
5600 2018-02-08  Richard Sandiford  <richard.sandiford@linaro.org>
5601
5602         PR tree-optimization/84265
5603         * tree-vect-stmts.c (vectorizable_store): Don't treat
5604         VMAT_CONTIGUOUS accesses as grouped.
5605         (vectorizable_load): Likewise.
5606
5607 2018-02-08  Richard Sandiford  <richard.sandiford@linaro.org>
5608
5609         PR tree-optimization/81635
5610         * wide-int.h (wi::round_down_for_mask, wi::round_up_for_mask): Declare.
5611         * wide-int.cc (wi::round_down_for_mask, wi::round_up_for_mask)
5612         (test_round_for_mask): New functions.
5613         (wide_int_cc_tests): Call test_round_for_mask.
5614         * tree-vrp.h (intersect_range_with_nonzero_bits): Declare.
5615         * tree-vrp.c (intersect_range_with_nonzero_bits): New function.
5616         * tree-data-ref.c (split_constant_offset_1): Use it to refine the
5617         range returned by get_range_info.
5618
5619 2018-02-08  Jan Hubicka  <hubicka@ucw.cz>
5620
5621         PR ipa/81360
5622         * cgraph.h (symtab_node::output_to_lto_symbol_table_p): Declare
5623         * symtab.c: Include builtins.h
5624         (symtab_node::output_to_lto_symbol_table_p): Move here
5625         from lto-streamer-out.c:output_symbol_p.
5626         * lto-streamer-out.c (write_symbol): Turn early exit to assert.
5627         (output_symbol_p): Move all logic to symtab.c
5628         (produce_symtab): Update.
5629
5630 2018-02-08  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
5631
5632         * config/s390/s390-opts.h (enum indirect_branch): Define.
5633         * config/s390/s390-protos.h (s390_return_addr_from_memory)
5634         (s390_indirect_branch_via_thunk)
5635         (s390_indirect_branch_via_inline_thunk): Add function prototypes.
5636         (enum s390_indirect_branch_type): Define.
5637         * config/s390/s390.c (struct s390_frame_layout, struct
5638         machine_function): Remove.
5639         (indirect_branch_prez10thunk_mask, indirect_branch_z10thunk_mask)
5640         (indirect_branch_table_label_no, indirect_branch_table_name):
5641         Define variables.
5642         (INDIRECT_BRANCH_NUM_OPTIONS): Define macro.
5643         (enum s390_indirect_branch_option): Define.
5644         (s390_return_addr_from_memory): New function.
5645         (s390_handle_string_attribute): New function.
5646         (s390_attribute_table): Add new attribute handler.
5647         (s390_execute_label): Handle UNSPEC_EXECUTE_JUMP patterns.
5648         (s390_indirect_branch_via_thunk): New function.
5649         (s390_indirect_branch_via_inline_thunk): New function.
5650         (s390_function_ok_for_sibcall): When jumping via thunk disallow
5651         sibling call optimization for non z10 compiles.
5652         (s390_emit_call): Force indirect branch target to be a single
5653         register.  Add r1 clobber for non-z10 compiles.
5654         (s390_emit_epilogue): Emit return jump via return_use expander.
5655         (s390_reorg): Handle JUMP_INSNs as execute targets.
5656         (s390_option_override_internal): Perform validity checks for the
5657         new command line options.
5658         (s390_indirect_branch_attrvalue): New function.
5659         (s390_indirect_branch_settings): New function.
5660         (s390_set_current_function): Invoke s390_indirect_branch_settings.
5661         (s390_output_indirect_thunk_function):  New function.
5662         (s390_code_end): Implement target hook.
5663         (s390_case_values_threshold): Implement target hook.
5664         (TARGET_ASM_CODE_END, TARGET_CASE_VALUES_THRESHOLD): Define target
5665         macros.
5666         * config/s390/s390.h (struct s390_frame_layout)
5667         (struct machine_function): Move here from s390.c.
5668         (TARGET_INDIRECT_BRANCH_NOBP_RET)
5669         (TARGET_INDIRECT_BRANCH_NOBP_JUMP)
5670         (TARGET_INDIRECT_BRANCH_NOBP_JUMP_THUNK)
5671         (TARGET_INDIRECT_BRANCH_NOBP_JUMP_INLINE_THUNK)
5672         (TARGET_INDIRECT_BRANCH_NOBP_CALL)
5673         (TARGET_DEFAULT_INDIRECT_BRANCH_TABLE)
5674         (TARGET_INDIRECT_BRANCH_THUNK_NAME_EXRL)
5675         (TARGET_INDIRECT_BRANCH_THUNK_NAME_EX)
5676         (TARGET_INDIRECT_BRANCH_TABLE): Define macros.
5677         * config/s390/s390.md (UNSPEC_EXECUTE_JUMP)
5678         (INDIRECT_BRANCH_THUNK_REGNUM): Define constants.
5679         (mnemonic attribute): Add values which aren't recognized
5680         automatically.
5681         ("*cjump_long", "*icjump_long", "*basr", "*basr_r"): Disable
5682         pattern for branch conversion.  Fix mnemonic attribute.
5683         ("*c<code>", "*sibcall_br", "*sibcall_value_br", "*return"): Emit
5684         indirect branch via thunk if requested.
5685         ("indirect_jump", "<code>"): Expand patterns for branch conversion.
5686         ("*indirect_jump"): Disable for branch conversion using out of
5687         line thunks.
5688         ("indirect_jump_via_thunk<mode>_z10")
5689         ("indirect_jump_via_thunk<mode>")
5690         ("indirect_jump_via_inlinethunk<mode>_z10")
5691         ("indirect_jump_via_inlinethunk<mode>", "*casesi_jump")
5692         ("casesi_jump_via_thunk<mode>_z10", "casesi_jump_via_thunk<mode>")
5693         ("casesi_jump_via_inlinethunk<mode>_z10")
5694         ("casesi_jump_via_inlinethunk<mode>", "*basr_via_thunk<mode>_z10")
5695         ("*basr_via_thunk<mode>", "*basr_r_via_thunk_z10")
5696         ("*basr_r_via_thunk", "return<mode>_prez10"): New pattern.
5697         ("*indirect2_jump"): Disable for branch conversion.
5698         ("casesi_jump"): Turn into expander and expand patterns for branch
5699         conversion.
5700         ("return_use"): New expander.
5701         ("*return"): Emit return via thunk and rename it to ...
5702         ("*return<mode>"): ... this one.
5703         * config/s390/s390.opt: Add new options and and enum for the
5704         option values.
5705
5706 2018-02-08  Richard Sandiford  <richard.sandiford@linaro.org>
5707
5708         * lra-constraints.c (match_reload): Unconditionally use
5709         gen_lowpart_SUBREG, rather than selecting between that
5710         and equivalent gen_rtx_SUBREG code.
5711
5712 2018-02-08  Richard Biener  <rguenther@suse.de>
5713
5714         PR tree-optimization/84233
5715         * tree-ssa-phiprop.c (propagate_with_phi): Use separate
5716         changed flag instead of boguously re-using phi_inserted.
5717
5718 2018-02-08  Martin Jambor  <mjambor@suse.cz>
5719
5720         * hsa-gen.c (get_symbol_for_decl): Set program allocation for
5721         static local variables.
5722
5723 2018-02-08  Richard Biener  <rguenther@suse.de>
5724
5725         PR tree-optimization/84278
5726         * tree-vect-stmts.c (vectorizable_store): When looking for
5727         smaller vector types to perform grouped strided loads/stores
5728         make sure the mode is supported by the target.
5729         (vectorizable_load): Likewise.
5730
5731 2018-02-08  Wilco Dijkstra  <wdijkstr@arm.com>
5732
5733         * config/aarch64/aarch64.c (aarch64_components_for_bb):
5734         Increase LDP/STP opportunities by adding adjacent callee-saves.
5735
5736 2018-02-08  Wilco Dijkstra  <wdijkstr@arm.com>
5737
5738         PR rtl-optimization/84068
5739         PR rtl-optimization/83459
5740         * haifa-sched.c (rank_for_schedule): Fix SCHED_PRESSURE_MODEL sorting.
5741
5742 2018-02-08  Aldy Hernandez  <aldyh@redhat.com>
5743
5744         PR tree-optimization/84224
5745         * gimple-ssa-warn-alloca.c (pass_walloca::execute): Remove assert.
5746         * calls.c (gimple_alloca_call_p): Only return TRUE when we have
5747         non-zero arguments.
5748
5749 2018-02-07  Iain Sandoe  <iain@codesourcery.com>
5750
5751         PR target/84113
5752         * config/rs6000/altivec.md (*restore_world): Remove LR use.
5753         * config/rs6000/predicates.md (restore_world_operation): Adjust op
5754         count, remove one USE.
5755
5756 2018-02-07  Michael Meissner  <meissner@linux.vnet.ibm.com>
5757
5758         * doc/install.texi (Configuration): Document the
5759         --with-long-double-format={ibm,ieee} PowerPC configuration
5760         options.
5761
5762         PR target/84154
5763         * config/rs6000/rs6000.md (fix_trunc<SFDF:mode><QHI:mode>2):
5764         Convert from define_expand to be define_insn_and_split.  Rework
5765         float/double/_Float128 conversions to QI/HI/SImode to work with
5766         both ISA 2.07 (power8) or ISA 3.0 (power9).  Fix regression where
5767         conversions to QI/HImode types did a store and then a load to
5768         truncate the value.  For conversions to VSX registers, don't split
5769         the insn, instead emit the code directly.  Use the code iterator
5770         any_fix to combine signed and unsigned conversions.
5771         (fix<uns>_trunc<SFDF:mode>si2_p8): Likewise.
5772         (fixuns_trunc<SFDF:mode><QHI:mode>2): Likewise.
5773         (fix_trunc<IEEE128:mode><QHI:mode>2): Likewise.
5774         (fix<uns>_trunc<SFDF:mode><QHI:mode>2): Likewise.
5775         (fix_<mode>di2_hw): Likewise.
5776         (fixuns_<mode>di2_hw): Likewise.
5777         (fix_<mode>si2_hw): Likewise.
5778         (fixuns_<mode>si2_hw): Likewise.
5779         (fix<uns>_<IEEE128:mode><SDI:mode>2_hw): Likewise.
5780         (fix<uns>_trunc<IEEE128:mode><QHI:mode>2): Likewise.
5781         (fctiw<u>z_<mode>_smallint): Rename fctiw<u>z_<mode>_smallint to
5782         fix<uns>_trunc<SFDF:mode>si2_p8.
5783         (fix_trunc<SFDF:mode><QHI:mode>2_internal): Delete, no longer
5784         used.
5785         (fixuns_trunc<SFDF:mode><QHI:mode>2_internal): Likewise.
5786         (fix<uns>_<mode>_mem): Likewise.
5787         (fctiw<u>z_<mode>_mem): Likewise.
5788         (fix<uns>_<mode>_mem): Likewise.
5789         (fix<uns>_trunc<SFDF:mode><QHSI:mode>2_mem): On ISA 3.0, prevent
5790         the register allocator from doing a direct move to the GPRs to do
5791         a store, and instead use the ISA 3.0 store byte/half-word from
5792         vector register instruction.  For IEEE 128-bit floating point,
5793         also optimize stores of 32-bit ints.
5794         (fix<uns>_trunc<IEEE128:mode><QHSI:mode>2_mem): Likewise.
5795
5796 2018-02-07  Alan Hayward  <alan.hayward@arm.com>
5797
5798         * genextract.c (push_pathstr_operand): New function to support
5799         [a-zA-Z].
5800         (walk_rtx): Call push_pathstr_operand.
5801         (print_path): Support [a-zA-Z].
5802
5803 2018-02-07  Richard Biener  <rguenther@suse.de>
5804
5805         PR tree-optimization/84037
5806         * tree-vectorizer.h (struct _loop_vec_info): Add ivexpr_map member.
5807         (cse_and_gimplify_to_preheader): Declare.
5808         (vect_get_place_in_interleaving_chain): Likewise.
5809         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
5810         ivexpr_map.
5811         (_loop_vec_info::~_loop_vec_info): Delete it.
5812         (cse_and_gimplify_to_preheader): New function.
5813         * tree-vect-slp.c (vect_get_place_in_interleaving_chain): Export.
5814         * tree-vect-stmts.c (vectorizable_store): CSE base and steps.
5815         (vectorizable_load): Likewise.  For grouped stores always base
5816         the IV on the first element.
5817         * tree-vect-loop-manip.c (vect_loop_versioning): Unshare versioning
5818         condition before gimplifying.
5819
5820 2018-02-07  Jakub Jelinek  <jakub@redhat.com>
5821
5822         * tree-eh.c (operation_could_trap_helper_p): Ignore honor_trapv for
5823         *DIV_EXPR and *MOD_EXPR.
5824
5825 2018-02-07  H.J. Lu  <hongjiu.lu@intel.com>
5826
5827         PR target/84248
5828         * config/i386/i386.c (ix86_option_override_internal): Mask out
5829         the CF_SET bit when checking -fcf-protection.
5830
5831 2018-02-07  Tom de Vries  <tom@codesourcery.com>
5832
5833         PR libgomp/84217
5834         * omp-expand.c (expand_oacc_collapse_init): Ensure diff_type is large
5835         enough.
5836
5837 2018-02-07  Richard Biener  <rguenther@suse.de>
5838
5839         PR tree-optimization/84204
5840         * tree-chrec.c (chrec_fold_plus_1): Remove size limiting in
5841         this place.
5842
5843         PR tree-optimization/84205
5844         * graphite-isl-ast-to-gimple.c (binary_op_to_tree): Also
5845         special-case isl_ast_op_zdiv_r.
5846
5847         PR tree-optimization/84223
5848         * graphite-scop-detection.c (gather_bbs::before_dom_children):
5849         Only add conditions from within the region.
5850         (gather_bbs::after_dom_children): Adjust.
5851
5852 2018-02-07  Georg-Johann Lay  <avr@gjlay.de>
5853
5854         PR target/84209
5855         * config/avr/avr.h (GENERAL_REGNO_P, GENERAL_REG_P): New macros.
5856         * config/avr/avr.md: Only post-reload split REG-REG moves if
5857         either register is GENERAL_REG_P.
5858
5859 2018-02-07  Jakub Jelinek  <jakub@redhat.com>
5860
5861         PR tree-optimization/84235
5862         * tree-ssa-scopedtables.c
5863         (avail_exprs_stack::simplify_binary_operation): Fir MINUS_EXPR, punt
5864         if the subtraction is performed in floating point type where NaNs are
5865         honored.  For *DIV_EXPR, punt for ALL_FRACT_MODE_Ps where we can't
5866         build 1.  Formatting fix.
5867
5868 2018-02-06  Jakub Jelinek  <jakub@redhat.com>
5869
5870         PR target/84146
5871         * config/i386/i386.c (rest_of_insert_endbranch): Only skip
5872         NOTE_INSN_CALL_ARG_LOCATION after a call, not anything else,
5873         and skip it regardless of bb boundaries.  Use CALL_P macro,
5874         don't test INSN_P (insn) together with CALL_P or JUMP_P check
5875         unnecessarily, formatting fix.
5876
5877 2018-02-06  Michael Collison  <michael.collison@arm.com>
5878
5879         * config/arm/thumb2.md:
5880         (*thumb2_mov_negscc): Split only if TARGET_THUMB2 && !arm_restrict_it.
5881         (*thumb_mov_notscc): Ditto.
5882
5883 2018-02-06  Michael Meissner  <meissner@linux.vnet.ibm.com>
5884
5885         PR target/84154
5886         * config/rs6000/rs6000.md (su code attribute): Use "u" for
5887         unsigned_fix, not "s".
5888
5889 2018-02-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
5890
5891         * configure.ac (gcc_fn_eh_frame_ro): New function.
5892         (gcc_cv_as_cfi_directive): Check both 32 and 64-bit assembler for
5893         correct .eh_frame permissions.
5894         * configure: Regenerate.
5895
5896 2018-02-06  Andrew Jenner  <andrew@codeourcery.com>
5897
5898         * doc/invoke.texi: Add section for the PowerPC SPE backend. Remove
5899         irrelevant options.
5900
5901 2018-02-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
5902
5903         * config/rs6000/rs6000.c (rs6000_option_override_internal):
5904         Display warning message for -mno-speculate-indirect-jumps.
5905
5906 2018-02-06  Andrew Jenner  <andrew@codesourcery.com>
5907
5908         * config/powerpcspe/powerpcspe.opt: (msimple-fpu, mfpu) Add
5909         Undocumented.
5910         * config/powerpcspe/sysv4.opt (mbit-align): Likewise.
5911
5912 2018-02-06  Aldy Hernandez  <aldyh@redhat.com>
5913
5914         PR tree-optimization/84225
5915         * tree-eh.c (find_trapping_overflow): Only call
5916         operation_no_trapping_overflow when ANY_INTEGRAL_TYPE_P.
5917
5918 2018-02-06  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
5919
5920         PR target/84145
5921         * config/i386/i386.c: Reimplement the check of possible options
5922         -mibt/-mshstk conbination. Change error messages.
5923         * doc/invoke.texi: Fix a typo: remove extra '='.
5924
5925 2018-02-06  Marek Polacek  <polacek@redhat.com>
5926
5927         PR tree-optimization/84228
5928         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Skip debug statements.
5929
5930 2018-02-06  Tamar Christina  <tamar.christina@arm.com>
5931
5932         PR target/82641
5933         * config/arm/arm.c (arm_print_asm_arch_directives): Record already
5934         emitted arch directives.
5935         * config/arm/arm-c.c (arm_cpu_builtins): Undefine __ARM_ARCH and
5936         __ARM_FEATURE_COPROC before changing architectures.
5937
5938 2018-02-06  Richard Biener  <rguenther@suse.de>
5939
5940         * config/i386/i386.c (print_reg): Fix typo.
5941         (ix86_loop_unroll_adjust): Do not unroll beyond the original nunroll.
5942
5943 2018-02-06  Eric Botcazou  <ebotcazou@adacore.com>
5944
5945         * configure: Regenerate.
5946
5947 2018-02-05  Martin Sebor  <msebor@redhat.com>
5948
5949         PR tree-optimization/83369
5950         * tree-ssa-ccp.c (pass_post_ipa_warn::execute): Use %G to print
5951         inlining context.
5952
5953 2018-02-05  Martin Liska  <mliska@suse.cz>
5954
5955         * doc/invoke.texi: Cherry-pick upstream r323995.
5956
5957 2018-02-05  Richard Sandiford  <richard.sandiford@linaro.org>
5958
5959         * ira.c (ira_init_register_move_cost): Adjust comment.
5960
5961 2018-02-05  Martin Liska  <mliska@suse.cz>
5962
5963         PR gcov-profile/84137
5964         * doc/gcov.texi: Fix typo in documentation.
5965
5966 2018-02-05  Martin Liska  <mliska@suse.cz>
5967
5968         PR gcov-profile/83879
5969         * doc/gcov.texi: Document necessity of --dynamic-list-data when
5970         using dlopen functionality.
5971
5972 2018-02-05  Olga Makhotina  <olga.makhotina@intel.com>
5973
5974         * config/i386/avx512dqintrin.h (_mm_mask_range_sd, _mm_maskz_range_sd,
5975         _mm_mask_range_round_sd, _mm_maskz_range_round_sd, _mm_mask_range_ss,
5976         _mm_maskz_range_ss, _mm_mask_range_round_ss,
5977         _mm_maskz_range_round_ss): New intrinsics.
5978         (__builtin_ia32_rangesd128_round)
5979         (__builtin_ia32_rangess128_round): Remove.
5980         (__builtin_ia32_rangesd128_mask_round,
5981         __builtin_ia32_rangess128_mask_round): New builtins.
5982         * config/i386/i386-builtin.def (__builtin_ia32_rangesd128_round,
5983         __builtin_ia32_rangess128_round): Remove.
5984         (__builtin_ia32_rangesd128_mask_round,
5985         __builtin_ia32_rangess128_mask_round): New builtins.
5986         * config/i386/sse.md (ranges<mode><round_saeonly_name>): Renamed to ...
5987         (ranges<mode><mask_scalar_name><round_saeonly_scalar_name>): ... this.
5988         ((match_operand:VF_128 2 "<round_saeonly_nimm_predicate>"
5989         "<round_saeonly_constraint>")): Changed to ...
5990         ((match_operand:VF_128 2 "<round_saeonly_scalar_nimm_predicate>"
5991         "<round_saeonly_scalar_constraint>")): ... this.
5992         ("vrange<ssescalarmodesuffix>\t{%3, <round_saeonly_op4>%2, %1, %0|
5993         %0, %1, %2<round_saeonly_op4>, %3}"): Changed to ...
5994         ("vrange<ssescalarmodesuffix>\t{%3, <round_saeonly_scalar_mask_op4>%2,
5995         %1, %0<mask_scalar_operand4>|%0<mask_scalar_operand4>, %1,
5996         %2<round_saeonly_scalar_mask_op4>, %3}"): ... this.
5997
5998 2018-02-02  Andrew Jenner  <andrew@codesourcery.com>
5999
6000         * config/powerpcspe/powerpcspe.opt: Add Undocumented to irrelevant
6001         options.
6002         * config/powerpcspe/powerpcspe-tables.opt (rs6000_cpu_opt_value):
6003         Remove all values except native, 8540 and 8548.
6004
6005 2018-02-02  H.J. Lu  <hongjiu.lu@intel.com>
6006
6007         * config/i386/i386.c (ix86_output_function_return): Pass
6008         INVALID_REGNUM, instead of -1, as invalid register number to
6009         indirect_thunk_name and output_indirect_thunk.
6010
6011 2018-02-02  Julia Koval  <julia.koval@intel.com>
6012
6013         * config.gcc: Add -march=icelake.
6014         * config/i386/driver-i386.c (host_detect_local_cpu): Detect icelake.
6015         * config/i386/i386-c.c (ix86_target_macros_internal): Handle icelake.
6016         * config/i386/i386.c (processor_costs): Add m_ICELAKE.
6017         (PTA_ICELAKE, PTA_AVX512VNNI, PTA_GFNI, PTA_VAES, PTA_AVX512VBMI2,
6018         PTA_VPCLMULQDQ, PTA_RDPID, PTA_AVX512BITALG): New.
6019         (processor_target_table): Add icelake.
6020         (ix86_option_override_internal): Handle new PTAs.
6021         (get_builtin_code_for_version): Handle icelake.
6022         (M_INTEL_COREI7_ICELAKE): New.
6023         (fold_builtin_cpu): Handle icelake.
6024         * config/i386/i386.h (TARGET_ICELAKE, PROCESSOR_ICELAKE): New.
6025         * doc/invoke.texi: Add -march=icelake.
6026
6027 2018-02-02  Julia Koval  <julia.koval@intel.com>
6028
6029         * config/i386/i386.c (ix86_option_override_internal): Change flags type
6030         to wide_int_bitmask.
6031         * wide-int-bitmask.h: New.
6032
6033 2018-02-02  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
6034
6035         PR target/84066
6036         * config/i386/i386.md: Replace Pmode with word_mode in
6037         builtin_setjmp_setup and builtin_longjmp to support x32.
6038
6039 2018-02-01  Peter Bergner  <bergner@vnet.ibm.com>
6040
6041         PR target/56010
6042         PR target/83743
6043         * config/rs6000/driver-rs6000.c: #include "diagnostic.h".
6044         #include "opts.h".
6045         (rs6000_supported_cpu_names): New static variable.
6046         (linux_cpu_translation_table): Likewise.
6047         (elf_platform) <cpu>: Define new static variable and use it.
6048         Translate kernel AT_PLATFORM name to canonical name if needed.
6049         Error if platform name is unknown.
6050
6051 2018-02-01  Aldy Hernandez  <aldyh@redhat.com>
6052
6053         PR target/84089
6054         * config/pa/predicates.md (base14_operand): Handle E_VOIDmode.
6055
6056 2018-02-01  Jeff Law  <law@redhat.com>
6057
6058         PR target/84128
6059         * config/i386/i386.c (release_scratch_register_on_entry): Add new
6060         OFFSET and RELEASE_VIA_POP arguments.  Use SP+OFFSET to restore
6061         the scratch if RELEASE_VIA_POP is false.
6062         (ix86_adjust_stack_and_probe_stack_clash): Un-constify SIZE.
6063         If we have to save a temporary register, decrement SIZE appropriately.
6064         Pass new arguments to release_scratch_register_on_entry.
6065         (ix86_adjust_stack_and_probe): Likewise.
6066         (ix86_emit_probe_stack_range): Pass new arguments to
6067         release_scratch_register_on_entry.
6068
6069 2018-02-01  Uros Bizjak  <ubizjak@gmail.com>
6070
6071         PR rtl-optimization/84157
6072         * combine.c (change_zero_ext): Use REG_P predicate in
6073         front of HARD_REGISTER_P predicate.
6074
6075 2018-02-01  Georg-Johann Lay  <avr@gjlay.de>
6076
6077         * config/avr/avr.c (avr_option_override): Move disabling of
6078         -fdelete-null-pointer-checks to...
6079         * common/config/avr/avr-common.c (avr_option_optimization_table):
6080         ...here.
6081
6082 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
6083
6084         PR tree-optimization/81635
6085         * tree-data-ref.c (split_constant_offset_1): For types that
6086         wrap on overflow, try to use range info to prove that wrapping
6087         cannot occur.
6088
6089 2018-02-01  Renlin Li  <renlin.li@arm.com>
6090
6091         PR target/83370
6092         * config/aarch64/aarch64.c (aarch64_class_max_nregs): Handle
6093         TAILCALL_ADDR_REGS.
6094         (aarch64_register_move_cost): Likewise.
6095         * config/aarch64/aarch64.h (reg_class): Rename CALLER_SAVE_REGS to
6096         TAILCALL_ADDR_REGS.
6097         (REG_CLASS_NAMES): Likewise.
6098         (REG_CLASS_CONTENTS): Rename CALLER_SAVE_REGS to
6099         TAILCALL_ADDR_REGS. Remove IP registers.
6100         * config/aarch64/aarch64.md (Ucs): Update register constraint.
6101
6102 2018-02-01  Richard Biener  <rguenther@suse.de>
6103
6104         * domwalk.h (dom_walker::dom_walker): Add additional constructor
6105         for specifying RPO order and allow NULL for that.
6106         * domwalk.c (dom_walker::dom_walker): Likewise.
6107         (dom_walker::walk): Handle NULL RPO order.
6108         * tree-into-ssa.c (rewrite_dom_walker): Do not walk dom children
6109         in RPO order.
6110         (rewrite_update_dom_walker): Likewise.
6111         (mark_def_dom_walker): Likewise.
6112
6113 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
6114
6115         * config/aarch64/aarch64-protos.h (aarch64_split_sve_subreg_move)
6116         (aarch64_maybe_expand_sve_subreg_move): Declare.
6117         * config/aarch64/aarch64.md (UNSPEC_REV_SUBREG): New unspec.
6118         * config/aarch64/predicates.md (aarch64_any_register_operand): New
6119         predicate.
6120         * config/aarch64/aarch64-sve.md (mov<mode>): Optimize subreg moves
6121         that are semantically a reverse operation.
6122         (*aarch64_sve_mov<mode>_subreg_be): New pattern.
6123         * config/aarch64/aarch64.c (aarch64_maybe_expand_sve_subreg_move):
6124         (aarch64_replace_reg_mode, aarch64_split_sve_subreg_move): New
6125         functions.
6126         (aarch64_can_change_mode_class): For big-endian, forbid changes
6127         between two SVE modes if they have different element sizes.
6128
6129 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
6130
6131         * config/aarch64/aarch64.c (aarch64_expand_sve_const_vector): Prefer
6132         the TImode handling for big-endian targets.
6133
6134 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
6135
6136         * config/aarch64/aarch64-sve.md (sve_ld1rq): Replace with...
6137         (*sve_ld1rq<Vesize>): ... this new pattern.  Handle all element sizes,
6138         not just bytes.
6139         * config/aarch64/aarch64.c (aarch64_expand_sve_widened_duplicate):
6140         Remove BSWAP handing for big-endian targets and use the form of
6141         LD1RQ appropariate for the mode.
6142
6143 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
6144
6145         * config/aarch64/aarch64.c (aarch64_simd_valid_immediate): Handle
6146         all CONST_VECTOR_DUPLICATE_P vectors, not just those with a single
6147         duplicated element.
6148
6149 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
6150
6151         PR tearget/83845
6152         * config/aarch64/aarch64.c (aarch64_secondary_reload): Tighten
6153         check for operands that need to go through aarch64_sve_reload_be.
6154
6155 2018-02-01  Jakub Jelinek  <jakub@redhat.com>
6156
6157         PR tree-optimization/81661
6158         PR tree-optimization/84117
6159         * tree-eh.h (rewrite_to_non_trapping_overflow): Declare.
6160         * tree-eh.c: Include gimplify.h.
6161         (find_trapping_overflow, replace_trapping_overflow,
6162         rewrite_to_non_trapping_overflow): New functions.
6163         * tree-vect-loop.c: Include tree-eh.h.
6164         (vect_get_loop_niters): Use rewrite_to_non_trapping_overflow.
6165         * tree-data-ref.c: Include tree-eh.h.
6166         (get_segment_min_max): Use rewrite_to_non_trapping_overflow.
6167
6168 2018-01-31  Uros Bizjak  <ubizjak@gmail.com>
6169
6170         PR rtl-optimization/84123
6171         * combine.c (change_zero_ext): Check if hard register satisfies
6172         can_change_dest_mode before calling gen_lowpart_SUBREG.
6173
6174 2018-01-31  Vladimir Makarov  <vmakarov@redhat.com>
6175
6176         PR target/82444
6177         * ira.c (ira_init_register_move_cost): Remove assert.
6178
6179 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
6180
6181         PR rtl-optimization/84071
6182         * doc/tm.texi.in (WORD_REGISTER_OPERATIONS): Add explicit case.
6183         * doc/tm.texi: Regenerate.
6184
6185 2018-01-31  Richard Biener  <rguenther@suse.de>
6186
6187         PR tree-optimization/84132
6188         * tree-data-ref.c (analyze_miv_subscript): Properly
6189         check whether evolution_function_is_affine_multivariate_p
6190         before calling gcd_of_steps_may_divide_p.
6191
6192 2018-01-31  Julia Koval  <julia.koval@intel.com>
6193
6194         PR target/83618
6195         * config/i386/i386.c (ix86_expand_builtin): Handle IX86_BUILTIN_RDPID.
6196         * config/i386/i386.md (rdpid_rex64) New.
6197         (rdpid): Make 32bit only.
6198
6199 2018-01-29  Aldy Hernandez  <aldyh@redhat.com>
6200
6201         PR lto/84105
6202         * tree-pretty-print.c (dump_generic_node): Handle a TYPE_NAME with
6203         an IDENTIFIER_NODE for FUNCTION_TYPE's.
6204
6205 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
6206
6207         Revert
6208         2018-01-12  Eric Botcazou  <ebotcazou@adacore.com>
6209
6210         * config/sparc/sparc.md (vxworks_load_got): Set the GOT register.
6211
6212 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
6213
6214         PR rtl-optimization/84071
6215         * combine.c (record_dead_and_set_regs_1): Record the source unmodified
6216         for a paradoxical SUBREG on a WORD_REGISTER_OPERATIONS target.
6217
6218 2018-01-31  Claudiu Zissulescu  <claziss@synopsys.com>
6219
6220         * config/arc/arc.c (arc_handle_aux_attribute): New function.
6221         (arc_attribute_table): Add 'aux' attribute.
6222         (arc_in_small_data_p): Consider aux like variables.
6223         (arc_is_aux_reg_p): New function.
6224         (arc_asm_output_aligned_decl_local): Ignore 'aux' like variables.
6225         (arc_get_aux_arg): New function.
6226         (prepare_move_operands): Handle aux-register access.
6227         (arc_handle_aux_attribute): New function.
6228         * doc/extend.texi (ARC Variable attributes): Add subsection.
6229
6230 2018-01-31  Claudiu Zissulescu  <claziss@synopsys.com>
6231
6232         * config/arc/arc-protos.h (arc_is_uncached_mem_p): Function proto.
6233         * config/arc/arc.c (arc_handle_uncached_attribute): New function.
6234         (arc_attribute_table): Add 'uncached' attribute.
6235         (arc_print_operand): Print '.di' flag for uncached memory
6236         accesses.
6237         (arc_in_small_data_p): Do not consider for small data the uncached
6238         types.
6239         (arc_is_uncached_mem_p): New function.
6240         * config/arc/predicates.md (compact_store_memory_operand): Check
6241         for uncached memory accesses.
6242         (nonvol_nonimm_operand): Likewise.
6243         * gcc/doc/extend.texi (ARC Type Attribute): New subsection.
6244
6245 2018-01-31  Jakub Jelinek  <jakub@redhat.com>
6246
6247         PR c/84100
6248         * common.opt (falign-functions=, falign-jumps=, falign-labels=,
6249         falign-loops=): Add Optimization flag.
6250
6251 2018-01-30  Jeff Law  <law@redhat.com>
6252
6253         PR target/84064
6254         * i386.c (ix86_adjust_stack_and_probe_stack_clash): New argument
6255         INT_REGISTERS_SAVED.  Check it prior to calling
6256         get_scratch_register_on_entry.
6257         (ix86_adjust_stack_and_probe): Similarly.
6258         (ix86_emit_probe_stack_range): Similarly.
6259         (ix86_expand_prologue): Corresponding changes.
6260
6261 2018-01-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
6262
6263         PR target/40411
6264         * config/sol2.h (STARTFILE_ARCH_SPEC): Use -std=c*,
6265         -std=iso9899:199409 instead of -pedantic to select values-Xc.o.
6266
6267 2018-01-30  Vladimir Makarov  <vmakarov@redhat.com>
6268
6269         PR target/84112
6270         * lra-constraints.c (curr_insn_transform): Process AND in the
6271         address.
6272
6273 2018-01-30  Jakub Jelinek  <jakub@redhat.com>
6274
6275         PR rtl-optimization/83986
6276         * sched-deps.c (sched_analyze_insn): For frame related insns, add anti
6277         dependence against last_pending_memory_flush in addition to
6278         pending_jump_insns.
6279
6280 2018-01-30  Alexandre Oliva  <aoliva@redhat.com>
6281
6282         PR tree-optimization/81611
6283         * tree-ssa-dom.c (simple_iv_increment_p): Skip intervening
6284         copies.
6285
6286 2018-01-30  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
6287
6288         PR target/83758
6289         * config/rs6000/rs6000.c (rs6000_internal_arg_pointer): Only return
6290         a reg rtx.
6291
6292 2018-01-30  Richard Biener  <rguenther@suse.de>
6293             Jakub Jelinek  <jakub@redhat.com>
6294
6295         PR tree-optimization/84111
6296         * tree-ssa-loop-ivcanon.c (tree_unroll_loops_completely_1): Skip
6297         inner loops added during recursion, as they don't have up-to-date
6298         SSA form.
6299
6300 2018-01-30  Jan Hubicka  <hubicka@ucw.cz>
6301
6302         PR ipa/81360
6303         * ipa-inline.c (can_inline_edge_p): Break out late tests to...
6304         (can_inline_edge_by_limits_p): ... here.
6305         (can_early_inline_edge_p, check_callers,
6306         update_caller_keys, update_callee_keys, recursive_inlining,
6307         add_new_edges_to_heap, speculation_useful_p,
6308         inline_small_functions,
6309         inline_small_functions, flatten_function,
6310         inline_to_all_callers_1): Update.
6311
6312 2018-01-30  Jan Hubicka  <hubicka@ucw.cz>
6313
6314         * profile-count.c (profile_count::combine_with_ipa_count): Handle
6315         zeros correctly.
6316
6317 2018-01-30  Richard Biener  <rguenther@suse.de>
6318
6319         PR tree-optimization/83008
6320         * tree-vect-slp.c (vect_analyze_slp_cost_1): Properly cost
6321         invariant and constant vector uses in stmts when they need
6322         more than one stmt.
6323
6324 2018-01-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
6325
6326         PR bootstrap/84017
6327         * configure.ac (gcc_cv_as_shf_merge): Disable on Solaris 10/x86.
6328         * configure: Regenerate.
6329
6330 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
6331
6332         * config/aarch64/aarch64-sve.md (*vec_extract<mode><Vel>_0): New
6333         pattern.
6334         (*vec_extract<mode><Vel>_v128): Require a nonzero lane number.
6335         Use gen_rtx_REG rather than gen_lowpart.
6336
6337 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
6338
6339         * lra-constraints.c (match_reload): Use subreg_lowpart_offset
6340         rather than 0 when creating partial subregs.
6341
6342 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
6343
6344         * vec-perm-indices.c (vec_perm_indices::series_p): Give examples
6345         of usage.
6346
6347 2018-01-29  Michael Meissner  <meissner@linux.vnet.ibm.com>
6348
6349         PR target/81550
6350         * config/rs6000/rs6000.c (rs6000_setup_reg_addr_masks): If DFmode
6351         and SFmode can go in Altivec registers (-mcpu=power7 for DFmode,
6352         -mcpu=power8 for SFmode) don't set the PRE_INCDEC or PRE_MODIFY
6353         flags.  This restores the settings used before the 2017-07-24.
6354         Turning off pre increment/decrement/modify allows IVOPTS to
6355         optimize DF/SF loops where the index is an int.
6356
6357 2018-01-29  Richard Biener  <rguenther@suse.de>
6358             Kelvin Nilsen  <kelvin@gcc.gnu.org>
6359
6360         PR bootstrap/80867
6361         * tree-vect-stmts.c (vectorizable_call): Don't call
6362         targetm.vectorize_builtin_md_vectorized_function if callee is
6363         NULL.
6364
6365 2018-01-22  Carl Love  <cel@us.ibm.com>
6366
6367         * doc/extend.tex: Fix typo in second arg in
6368         __builtin_bcdadd_{lt|eq|gt|ov} and __builtin_bcdsub_{lt|eq|gt|ov}.
6369
6370 2018-01-29  Richard Biener  <rguenther@suse.de>
6371
6372         PR tree-optimization/84086
6373         * tree-ssanames.c: Include cfgloop.h and tree-scalar-evolution.h.
6374         (flush_ssaname_freelist): When SSA names were released reset
6375         the SCEV hash table.
6376
6377 2018-01-29  Richard Biener  <rguenther@suse.de>
6378
6379         PR tree-optimization/84057
6380         * tree-ssa-loop-ivcanon.c (unloop_loops): Deal with already
6381         removed paths when removing edges.
6382
6383 2018-01-27  H.J. Lu  <hongjiu.lu@intel.com>
6384
6385         * doc/invoke.texi: Replace -mfunction-return==@var{choice} with
6386         -mfunction-return=@var{choice}.
6387
6388 2018-01-27  Bernd Edlinger  <bernd.edlinger@hotmail.de>
6389
6390         PR diagnostic/84034
6391         * diagnostic-show-locus.c (get_line_width_without_trailing_whitespace):
6392         Handle CR like TAB.
6393         (layout::print_source_line): Likewise.
6394         (test_get_line_width_without_trailing_whitespace): Add test cases.
6395
6396 2018-01-27  Jakub Jelinek  <jakub@redhat.com>
6397
6398         PR middle-end/84040
6399         * sched-deps.c (sched_macro_fuse_insns): Return immediately for
6400         debug insns.
6401
6402 2018-01-26  Jim Wilson  <jimw@sifive.com>
6403
6404         * config/riscv/riscv.h (MAX_FIXED_MODE_SIZE): New.
6405
6406         * config/riscv/elf.h (LIB_SPEC): Don't include -lgloss when nosys.specs
6407         specified.
6408
6409 2018-01-26  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
6410
6411         * config/aarch64/aarch64.md: Add peepholes for CMP + SUB -> SUBS
6412         and CMP + SUB-immediate -> SUBS.
6413
6414 2018-01-26  Martin Sebor  <msebor@redhat.com>
6415
6416         PR tree-optimization/83896
6417         * tree-ssa-strlen.c (get_string_len): Rename...
6418         (get_string_cst_length): ...to this.  Return HOST_WIDE_INT.
6419         Avoid assuming length is constant.
6420         (handle_char_store): Use HOST_WIDE_INT for string length.
6421
6422 2018-01-26  Uros Bizjak  <ubizjak@gmail.com>
6423
6424         PR target/81763
6425         * config/i386/i386.md (*andndi3_doubleword): Add earlyclobber
6426         to (=&r,r,rm) alternative. Add (=r,0,rm) and (=r,r,0) alternatives.
6427
6428 2018-01-26  Richard Biener  <rguenther@suse.de>
6429
6430         PR rtl-optimization/84003
6431         * dse.c (record_store): Only record redundant stores when
6432         the earlier store aliases at least all accesses the later one does.
6433
6434 2018-01-26  Jakub Jelinek  <jakub@redhat.com>
6435
6436         PR rtl-optimization/83985
6437         * dce.c (deletable_insn_p): Return false for separate shrink wrapping
6438         REG_CFA_RESTORE insns.
6439         (delete_unmarked_insns): Don't ignore separate shrink wrapping
6440         REG_CFA_RESTORE insns here.
6441
6442         PR c/83989
6443         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Don't
6444         use SSA_NAME_VAR as base for SSA_NAMEs with non-NULL SSA_NAME_VAR.
6445
6446 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
6447
6448         * config/arc/arc-arch.h (arc_tune_attr): Add ARC_TUNE_CORE_3.
6449         * config/arc/arc.c (arc_sched_issue_rate): Use ARC_TUNE_... .
6450         (arc_init): Likewise.
6451         (arc_override_options): Likewise.
6452         (arc_file_start): Choose Tag_ARC_CPU_variation based on arc_tune
6453         value.
6454         (hwloop_fail): Use TARGET_DBNZ when we want to check for dbnz insn
6455         support.
6456         * config/arc/arc.h (TARGET_DBNZ): Define.
6457         * config/arc/arc.md (attr tune): Add core_3, use ARC_TUNE_... to
6458         properly set the tune attribute.
6459         (dbnz): Use TARGET_DBNZ guard.
6460         * config/arc/arc.opt (mtune): Add core3 option.
6461
6462 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
6463
6464         * config/arc/arc.c (arc_delegitimize_address_0): Refactored to
6465         recognize new pic like addresses.
6466         (arc_delegitimize_address): Clean up.
6467
6468 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
6469
6470         * config/arc/arc-arches.def: Option mrf16 valid for all
6471         architectures.
6472         * config/arc/arc-c.def (__ARC_RF16__): New predefined macro.
6473         * config/arc/arc-cpus.def (em_mini): New cpu with rf16 on.
6474         * config/arc/arc-options.def (FL_RF16): Add mrf16 option.
6475         * config/arc/arc-tables.opt: Regenerate.
6476         * config/arc/arc.c (arc_conditional_register_usage): Handle
6477         reduced register file case.
6478         (arc_file_start): Set must have build attributes.
6479         * config/arc/arc.h (MAX_ARC_PARM_REGS): Conditional define using
6480         mrf16 option value.
6481         * config/arc/arc.opt (mrf16): Add new option.
6482         * config/arc/elf.h (ATTRIBUTE_PCS): Define.
6483         * config/arc/genmultilib.awk: Handle new mrf16 option.
6484         * config/arc/linux.h (ATTRIBUTE_PCS): Define.
6485         * config/arc/t-multilib: Regenerate.
6486         * doc/invoke.texi (ARC Options): Document mrf16 option.
6487
6488 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
6489
6490         * config/arc/arc-protos.h: Add arc_is_secure_call_p proto.
6491         * config/arc/arc.c (arc_handle_secure_attribute): New function.
6492         (arc_attribute_table): Add 'secure_call' attribute.
6493         (arc_print_operand): Print secure call operand.
6494         (arc_function_ok_for_sibcall): Don't optimize tail calls when
6495         secure.
6496         (arc_is_secure_call_p): New function.  * config/arc/arc.md
6497         (call_i): Add support for sjli instruction.
6498         (call_value_i): Likewise.
6499         * config/arc/constraints.md (Csc): New constraint.
6500
6501 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
6502             John Eric Martin  <John.Martin@emmicro-us.com>
6503
6504         * config/arc/arc-protos.h: Add arc_is_jli_call_p proto.
6505         * config/arc/arc.c (_arc_jli_section): New struct.
6506         (arc_jli_section): New type.
6507         (rc_jli_sections): New static variable.
6508         (arc_handle_jli_attribute): New function.
6509         (arc_attribute_table): Add jli_always and jli_fixed attribute.
6510         (arc_file_end): New function.
6511         (TARGET_ASM_FILE_END): Define.
6512         (arc_print_operand): Reuse 'S' letter for JLI output instruction.
6513         (arc_add_jli_section): New function.
6514         (jli_call_scan): Likewise.
6515         (arc_reorg): Call jli_call_scan.
6516         (arc_output_addsi): Remove 'S' from printing asm operand.
6517         (arc_is_jli_call_p): New function.
6518         * config/arc/arc.md (movqi_insn): Remove 'S' from printing asm
6519         operand.
6520         (movhi_insn): Likewise.
6521         (movsi_insn): Likewise.
6522         (movsi_set_cc_insn): Likewise.
6523         (loadqi_update): Likewise.
6524         (load_zeroextendqisi_update): Likewise.
6525         (load_signextendqisi_update): Likewise.
6526         (loadhi_update): Likewise.
6527         (load_zeroextendhisi_update): Likewise.
6528         (load_signextendhisi_update): Likewise.
6529         (loadsi_update): Likewise.
6530         (loadsf_update): Likewise.
6531         (movsicc_insn): Likewise.
6532         (bset_insn): Likewise.
6533         (bxor_insn): Likewise.
6534         (bclr_insn): Likewise.
6535         (bmsk_insn): Likewise.
6536         (bicsi3_insn): Likewise.
6537         (cmpsi_cc_c_insn): Likewise.
6538         (movsi_ne): Likewise.
6539         (movsi_cond_exec): Likewise.
6540         (clrsbsi2): Likewise.
6541         (norm_f): Likewise.
6542         (normw): Likewise.
6543         (swap): Likewise.
6544         (divaw): Likewise.
6545         (flag): Likewise.
6546         (sr): Likewise.
6547         (kflag): Likewise.
6548         (ffs): Likewise.
6549         (ffs_f): Likewise.
6550         (fls): Likewise.
6551         (call_i): Remove 'S' asm letter, add jli instruction.
6552         (call_value_i): Likewise.
6553         * config/arc/arc.op (mjli-always): New option.
6554         * config/arc/constraints.md (Cji): New constraint.
6555         * config/arc/fpx.md (addsf3_fpx): Remove 'S' from printing asm
6556         operand.
6557         (subsf3_fpx): Likewise.
6558         (mulsf3_fpx): Likewise.
6559         * config/arc/simdext.md (vendrec_insn): Remove 'S' from printing
6560         asm operand.
6561         * doc/extend.texi (ARC): Document 'jli-always' and 'jli-fixed'
6562         function attrbutes.
6563         * doc/invoke.texi (ARC): Document mjli-always option.
6564
6565 2018-01-26  Sebastian Perta  <sebastian.perta@renesas.com>
6566
6567         * config/rl78/rl78.c (rl78_addsi3_internal): If operand 2 is const
6568         avoid addition with 0 and use incw and decw where possible.
6569
6570 2018-01-26  Richard Biener  <rguenther@suse.de>
6571
6572         PR tree-optimization/81082
6573         * fold-const.c (fold_plusminus_mult_expr): Do not perform the
6574         association if it requires casting to unsigned.
6575         * match.pd ((A * C) +- (B * C) -> (A+-B)): New patterns derived
6576         from fold_plusminus_mult_expr to catch important cases late when
6577         range info is available.
6578
6579 2018-01-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
6580
6581         * config/i386/sol2.h (USE_HIDDEN_LINKONCE): Remove.
6582         * configure.ac (hidden_linkonce): New test.
6583         * configure: Regenerate.
6584         * config.in: Regenerate.
6585
6586 2018-01-26  Julia Koval  <julia.koval@intel.com>
6587
6588         * config/i386/avx512bitalgintrin.h (_mm512_bitshuffle_epi64_mask,
6589         _mm512_mask_bitshuffle_epi64_mask, _mm256_bitshuffle_epi64_mask,
6590         _mm256_mask_bitshuffle_epi64_mask, _mm_bitshuffle_epi64_mask,
6591         _mm_mask_bitshuffle_epi64_mask): Fix type.
6592         * config/i386/i386-builtin-types.def (UHI_FTYPE_V2DI_V2DI_UHI,
6593         USI_FTYPE_V4DI_V4DI_USI): Remove.
6594         * config/i386/i386-builtin.def (__builtin_ia32_vpshufbitqmb512_mask,
6595         __builtin_ia32_vpshufbitqmb256_mask,
6596         __builtin_ia32_vpshufbitqmb128_mask): Fix types.
6597         * config/i386/i386.c (ix86_expand_args_builtin): Remove old types.
6598         * config/i386/sse.md (VI1_AVX512VLBW): Change types.
6599
6600 2018-01-26  Alan Modra  <amodra@gmail.com>
6601
6602         PR target/84033
6603         * config/rs6000/rs6000-p8swap.c (rtx_is_swappable_p): Exclude
6604         UNSPEC_VBPERMQ.  Sort other unspecs.
6605
6606 2018-01-25  David Edelsohn  <dje.gcc@gmail.com>
6607
6608         * doc/invoke.texi (PowerPC Options): Document 'native' cpu type.
6609
6610 2018-01-25  Jan Hubicka  <hubicka@ucw.cz>
6611
6612         PR middle-end/83055
6613         * predict.c (drop_profile): Do not push/pop cfun; update also
6614         node->count.
6615         (handle_missing_profiles): Fix logic looking for zero profiles.
6616
6617 2018-01-25  Jakub Jelinek  <jakub@redhat.com>
6618
6619         PR middle-end/83977
6620         * ipa-fnsummary.c (compute_fn_summary): Clear can_change_signature
6621         on functions with #pragma omp declare simd or functions with simd
6622         attribute.
6623         * omp-simd-clone.c (expand_simd_clones): Revert 2018-01-24 change.
6624         * config/i386/i386.c (ix86_simd_clone_compute_vecsize_and_simdlen):
6625         Remove trailing \n from warning_at calls.
6626
6627 2018-01-25  Tom de Vries  <tom@codesourcery.com>
6628
6629         PR target/84028
6630         * config/nvptx/nvptx.c (nvptx_single): Add exit insn after noreturn call
6631         for neutered workers.
6632
6633 2018-01-24  Joseph Myers  <joseph@codesourcery.com>
6634
6635         PR target/68467
6636         * config/m68k/m68k.c (m68k_promote_function_mode): New function.
6637         (TARGET_PROMOTE_FUNCTION_MODE): New macro.
6638
6639 2018-01-24  Jeff Law  <law@redhat.com>
6640
6641         PR target/83994
6642         * i386.c (get_probe_interval): Move to earlier point.
6643         (ix86_compute_frame_layout): If -fstack-clash-protection and
6644         the frame is larger than the probe interval, then use pushes
6645         to save registers rather than reg->mem moves.
6646         (ix86_expand_prologue): Remove conditional for int_registers_saved
6647         assertion.
6648
6649 2018-01-24  Vladimir Makarov  <vmakarov@redhat.com>
6650
6651         PR target/84014
6652         * ira-build.c (setup_min_max_allocno_live_range_point): Set up
6653         min/max for never referenced object.
6654
6655 2018-01-24  Jakub Jelinek  <jakub@redhat.com>
6656
6657         PR middle-end/83977
6658         * tree.c (free_lang_data_in_decl): Don't clear DECL_ABSTRACT_ORIGIN
6659         here.
6660         * omp-low.c (create_omp_child_function): Remove "omp declare simd"
6661         attributes from DECL_ATTRIBUTES (decl) without affecting
6662         DECL_ATTRIBUTES (current_function_decl).
6663         * omp-simd-clone.c (expand_simd_clones): Ignore DECL_ARTIFICIAL
6664         functions with non-NULL DECL_ABSTRACT_ORIGIN.
6665
6666 2018-01-24  Richard Sandiford  <richard.sandiford@linaro.org>
6667
6668         PR tree-optimization/83979
6669         * fold-const.c (fold_comparison): Use constant_boolean_node
6670         instead of boolean_{true,false}_node.
6671
6672 2018-01-24  Jan Hubicka  <hubicka@ucw.cz>
6673
6674         * ipa-profile.c (ipa_propagate_frequency_1): Fix logic skipping calls
6675         with zero counts.
6676
6677 2018-01-24  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
6678
6679         * config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
6680         Simplify the clause that sets the length attribute.
6681         (*call_value_indirect_nonlocal_sysv<mode>): Likewise.
6682         (*sibcall_nonlocal_sysv<mode>): Clean up code block; simplify the
6683         clause that sets the length attribute.
6684         (*sibcall_value_nonlocal_sysv<mode>): Likewise.
6685
6686 2018-01-24  Tom de Vries  <tom@codesourcery.com>
6687
6688         PR target/83589
6689         * config/nvptx/nvptx.c (WORKAROUND_PTXJIT_BUG_2): Define to 1.
6690         (nvptx_pc_set, nvptx_condjump_label): New function. Copy from jump.c.
6691         Add strict parameter.
6692         (prevent_branch_around_nothing): Insert dummy insn between branch to
6693         label and label with no ptx insn inbetween.
6694         * config/nvptx/nvptx.md (define_insn "fake_nop"): New insn.
6695
6696 2018-01-24  Tom de Vries  <tom@codesourcery.com>
6697
6698         PR target/81352
6699         * config/nvptx/nvptx.c (nvptx_single): Add exit insn after noreturn call
6700         for neutered threads in warp.
6701         * config/nvptx/nvptx.md (define_insn "exit"): New insn.
6702
6703 2018-01-24  Richard Biener  <rguenther@suse.de>
6704
6705         PR tree-optimization/83176
6706         * tree-chrec.c (chrec_fold_plus_1): Handle (signed T){(T) .. }
6707         operands.
6708
6709 2018-01-24  Richard Biener  <rguenther@suse.de>
6710
6711         PR tree-optimization/82819
6712         * graphite-isl-ast-to-gimple.c (binary_op_to_tree): Avoid
6713         code generating pluses that are no-ops in the target precision.
6714
6715 2018-01-24  Richard Biener  <rguenther@suse.de>
6716
6717         PR middle-end/84000
6718         * tree-cfg.c (replace_loop_annotate): Handle annot_expr_parallel_kind.
6719
6720 2018-01-23  Jan Hubicka  <hubicka@ucw.cz>
6721
6722         * cfgcleanup.c (try_crossjump_to_edge): Use combine_with_count
6723         to merge probabilities.
6724         * predict.c (probably_never_executed): Also mark as cold functions
6725         with global 0 profile and guessed local profile.
6726         * profile-count.c (profile_probability::combine_with_count): New
6727         member function.
6728         * profile-count.h (profile_probability::operator*,
6729         profile_probability::operator*=, profile_probability::operator/,
6730         profile_probability::operator/=): Reduce precision to adjusted
6731         and set value to guessed on contradictory divisions.
6732         (profile_probability::combine_with_freq): Remove.
6733         (profile_probability::combine_wiht_count): Declare.
6734         (profile_count::force_nonzero):: Set to adjusted.
6735         (profile_count::probability_in):: Set quality to adjusted.
6736         * tree-ssa-tail-merge.c (replace_block_by): Use
6737         combine_with_count.
6738
6739 2018-01-23  Andrew Waterman  <andrew@sifive.com>
6740             Jim Wilson  <jimw@sifive.com>
6741
6742         * config/riscv/riscv.c (riscv_stack_boundary): New.
6743         (riscv_option_override): Set riscv_stack_boundary.  Handle
6744         riscv_preferred_stack_boundary_arg.
6745         * config/riscv/riscv.h (MIN_STACK_BOUNDARY, ABI_STACK_BOUNDARY): New.
6746         (BIGGEST_ALIGNMENT): Set to STACK_BOUNDARY.
6747         (STACK_BOUNDARY): Set to riscv_stack_boundary.
6748         (RISCV_STACK_ALIGN): Use STACK_BOUNDARY.
6749         * config/riscv/riscv.opt (mpreferred-stack-boundary): New.
6750         * doc/invoke.tex (RISC-V Options): Add -mpreferred-stack-boundary.
6751
6752 2018-01-23  H.J. Lu  <hongjiu.lu@intel.com>
6753
6754         PR target/83905
6755         * config/i386/i386.c (ix86_expand_prologue): Use cost reference
6756         of struct ix86_frame.
6757         (ix86_expand_epilogue): Likewise.  Add a local variable for
6758         the reg_save_offset field in struct ix86_frame.
6759
6760 2018-01-23  Bin Cheng  <bin.cheng@arm.com>
6761
6762         PR tree-optimization/82604
6763         * tree-loop-distribution.c (enum partition_kind): New enum item
6764         PKIND_PARTIAL_MEMSET.
6765         (partition_builtin_p): Support above new enum item.
6766         (generate_code_for_partition): Ditto.
6767         (compute_access_range): Differentiate cases that equality can be
6768         proven at all loops, the innermost loops or no loops.
6769         (classify_builtin_st, classify_builtin_ldst): Adjust call to above
6770         function.  Set PKIND_PARTIAL_MEMSET for partition appropriately.
6771         (finalize_partitions, distribute_loop): Don't fuse partition of
6772         PKIND_PARTIAL_MEMSET kind when distributing 3-level loop nest.
6773         (prepare_perfect_loop_nest): Distribute 3-level loop nest only if
6774         parloop is enabled.
6775
6776 2018-01-23  Martin Liska  <mliska@suse.cz>
6777
6778         * predict.def (PRED_INDIR_CALL): Set probability to PROB_EVEN in
6779         order to ignore the predictor.
6780         (PRED_POLYMORPHIC_CALL): Likewise.
6781         (PRED_RECURSIVE_CALL): Likewise.
6782
6783 2018-01-23  Martin Liska  <mliska@suse.cz>
6784
6785         * tree-profile.c (tree_profiling): Print function header to
6786         aware reader which function we are working on.
6787         * value-prof.c (gimple_find_values_to_profile): Do not print
6788         not interesting value histograms.
6789
6790 2018-01-23  Martin Liska  <mliska@suse.cz>
6791
6792         * profile-count.h (enum profile_quality): Add
6793         profile_uninitialized as the first value. Do not number values
6794         as they are zero based.
6795         (profile_count::verify): Update sanity check.
6796         (profile_probability::verify): Likewise.
6797
6798 2018-01-23  Nathan Sidwell  <nathan@acm.org>
6799
6800         * doc/invoke.texi (ffor-scope): Deprecate.
6801
6802 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
6803
6804         PR tree-optimization/83510
6805         * domwalk.c (set_all_edges_as_executable): New function.
6806         (dom_walker::dom_walker): Convert bool param
6807         "skip_unreachable_blocks" to enum reachability.  Move setup of
6808         edge flags to set_all_edges_as_executable and only do it when
6809         reachability is REACHABLE_BLOCKS.
6810         * domwalk.h (enum dom_walker::reachability): New enum.
6811         (dom_walker::dom_walker): Convert bool param
6812         "skip_unreachable_blocks" to enum reachability.
6813         (set_all_edges_as_executable): New decl.
6814         * graphite-scop-detection.c  (gather_bbs::gather_bbs): Convert
6815         from false for "skip_unreachable_blocks" to ALL_BLOCKS for
6816         "reachability".
6817         * tree-ssa-dom.c (dom_opt_dom_walker::dom_opt_dom_walker): Likewise,
6818         but converting true to REACHABLE_BLOCKS.
6819         * tree-ssa-sccvn.c (sccvn_dom_walker::sccvn_dom_walker): Likewise.
6820         * tree-vrp.c
6821         (check_array_bounds_dom_walker::check_array_bounds_dom_walker):
6822         Likewise, but converting it to REACHABLE_BLOCKS_PRESERVING_FLAGS.
6823         (vrp_dom_walker::vrp_dom_walker): Likewise, but converting it to
6824         REACHABLE_BLOCKS.
6825         (vrp_prop::vrp_finalize): Call set_all_edges_as_executable
6826         if check_all_array_refs will be called.
6827
6828 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
6829
6830         * tree.c (selftest::test_location_wrappers): Add more test
6831         coverage.
6832
6833 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
6834
6835         * sbitmap.c (selftest::test_set_range): Fix memory leaks.
6836         (selftest::test_bit_in_range): Likewise.
6837
6838 2018-01-23  Richard Sandiford  <richard.sandiford@linaro.org>
6839
6840         PR testsuite/83888
6841         * doc/sourcebuild.texi (vect_float): Say that the selector
6842         only describes the situation when -funsafe-math-optimizations is on.
6843         (vect_float_strict): Document.
6844
6845 2018-01-23  Richard Sandiford  <richard.sandiford@linaro.org>
6846
6847         PR tree-optimization/83965
6848         * tree-vect-patterns.c (vect_reassociating_reduction_p): New function.
6849         (vect_recog_dot_prod_pattern, vect_recog_sad_pattern): Use it
6850         instead of checking only for a reduction.
6851         (vect_recog_widen_sum_pattern): Likewise.
6852
6853 2018-01-23  Jan Hubicka  <hubicka@ucw.cz>
6854
6855         * predict.c (probably_never_executed): Only use precise profile info.
6856         (compute_function_frequency): Skip after inlining hack since we now
6857         have quality checking.
6858
6859 2018-01-23  Jan Hubicka  <hubicka@ucw.cz>
6860
6861         * profile-count.h (profile_probability::very_unlikely,
6862         profile_probability::unlikely, profile_probability::even): Set
6863         precision to guessed.
6864
6865 2018-01-23  Richard Biener  <rguenther@suse.de>
6866
6867         PR tree-optimization/83963
6868         * graphite-scop-detection.c (scop_detection::harmful_loop_in_region):
6869         Properly terminate dominator walk when crossing the exit edge not
6870         when visiting its source block.
6871
6872 2018-01-23  Jakub Jelinek  <jakub@redhat.com>
6873
6874         PR c++/83918
6875         * tree.c (maybe_wrap_with_location): Use NON_LVALUE_EXPR rather than
6876         VIEW_CONVERT_EXPR to wrap CONST_DECLs.
6877
6878 2018-01-22  Jakub Jelinek  <jakub@redhat.com>
6879
6880         PR tree-optimization/83957
6881         * omp-expand.c (expand_omp_for_generic): Ignore virtual PHIs.  Remove
6882         semicolon after for body surrounded by braces.
6883
6884         PR tree-optimization/83081
6885         * profile-count.h (profile_probability::split): New method.
6886         * dojump.c (do_jump_1) <case TRUTH_ANDIF_EXPR, case TRUTH_ORIF_EXPR>:
6887         Use profile_probability::split.
6888         (do_compare_rtx_and_jump): Fix adjustment of probabilities
6889         when splitting a single conditional jump into 2.
6890
6891 2018-01-22  David Malcolm  <dmalcolm@redhat.com>
6892
6893         PR tree-optimization/69452
6894         * tree-ssa-loop-im.c (class move_computations_dom_walker): Remove
6895         decl.
6896
6897 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6898
6899         * config/rl78/rl78-expand.md (bswaphi2): New define_expand.
6900         * config/rl78/rl78-virt.md (*bswaphi2_virt): New define_insn.
6901         * config/rl78/rl78-real.md (*bswaphi2_real): New define_insn.
6902
6903 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6904
6905         * config/rl78/rl78-protos.h (rl78_split_movdi): New function declaration.
6906         * config/rl78/rl78.md (movdi): New define_expand.
6907         * config/rl78/rl78.c (rl78_split_movdi): New function.
6908
6909 2018-01-22  Michael Meissner  <meissner@linux.vnet.ibm.com>
6910
6911         PR target/83862
6912         * config/rs6000/rs6000-protos.h (rs6000_split_signbit): Delete,
6913         no longer used.
6914         * config/rs6000/rs6000.c (rs6000_split_signbit): Likewise.
6915         * config/rs6000/rs6000.md (signbit<mode>2): Change code for IEEE
6916         128-bit to produce an UNSPEC move to get the double word with the
6917         signbit and then a shift directly to do signbit.
6918         (signbit<mode>2_dm): Replace old IEEE 128-bit signbit
6919         implementation with a new version that just does either a direct
6920         move or a regular move.  Move memory interface to separate insns.
6921         Move insns so they are next to the expander.
6922         (signbit<mode>2_dm_mem_be): New combiner insns to combine load
6923         with signbit move.  Split big and little endian case.
6924         (signbit<mode>2_dm_mem_le): Likewise.
6925         (signbit<mode>2_dm_<su>ext): Delete, no longer used.
6926         (signbit<mode>2_dm2): Likewise.
6927
6928 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6929
6930         * config/rl78/rl78.md (anddi3): New define_expand.
6931
6932 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6933
6934         * config/rl78/rl78.md (umindi3): New define_expand.
6935
6936 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6937
6938         * config/rl78/rl78.md (smindi3): New define_expand.
6939
6940 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6941
6942         * config/rl78/rl78.md (smaxdi3): New define_expand.
6943
6944 2018-01-22  Carl Love  <cel@us.ibm.com>
6945
6946         * config/rs6000/rs6000-builtin.def (ST_ELEMREV_V1TI, LD_ELEMREV_V1TI,
6947         LVX_V1TI): Add macro expansion.
6948         * config/rs6000/rs6000-c.c (altivec_builtin_types): Add argument
6949         definitions for VSX_BUILTIN_VEC_XST_BE, VSX_BUILTIN_VEC_ST,
6950         VSX_BUILTIN_VEC_XL, LD_ELEMREV_V1TI builtins.
6951         * config/rs6000/rs6000-p8swap.c (insn_is_swappable_p);
6952         Change check to determine if the instruction is a byte reversing
6953         entry.  Fix typo in comment.
6954         * config/rs6000/rs6000.c (altivec_expand_builtin): Add case entry
6955         for VSX_BUILTIN_ST_ELEMREV_V1TI and VSX_BUILTIN_LD_ELEMREV_V1TI.
6956         Add def_builtin calls for new builtins.
6957         * config/rs6000/vsx.md (vsx_st_elemrev_v1ti, vsx_ld_elemrev_v1ti):
6958         Add define_insn expansion.
6959
6960 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6961
6962         * config/rl78/rl78.md (umaxdi3): New define_expand.
6963
6964 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6965
6966         * config/rl78/rl78.c (rl78_note_reg_set): Fixed dead reg check
6967         for non-QImode registers.
6968
6969 2018-01-22  Richard Biener  <rguenther@suse.de>
6970
6971         PR tree-optimization/83963
6972         * graphite-scop-detection.c (scop_detection::get_sese): Delay
6973         including the loop exit block.
6974         (scop_detection::merge_sese): Likewise.
6975         (scop_detection::add_scop): Do it here instead.
6976
6977 2018-01-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
6978
6979         * doc/sourcebuild.texi (arm_softfloat): Document.
6980
6981 2018-01-21  John David Anglin  <danglin@gcc.gnu.org>
6982
6983         PR gcc/77734
6984         * config/pa/pa.c (pa_function_ok_for_sibcall): Use
6985         targetm.binds_local_p instead of TREE_PUBLIC to check local binding.
6986         Move TARGET_PORTABLE_RUNTIME check after TARGET_64BIT check.
6987
6988 2018-01-21  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
6989             David Edelsohn  <dje.gcc@gmail.com>
6990
6991         PR target/83946
6992         * config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
6993         Change "crset eq" to "crset 2".
6994         (*call_value_indirect_nonlocal_sysv<mode>): Likewise.
6995         (*call_indirect_aix<mode>_nospec): Likewise.
6996         (*call_value_indirect_aix<mode>_nospec): Likewise.
6997         (*call_indirect_elfv2<mode>_nospec): Likewise.
6998         (*call_value_indirect_elfv2<mode>_nospec): Likewise.
6999         (*sibcall_nonlocal_sysv<mode>): Change "crset eq" to "crset 2";
7000         change assembly output from . to $.
7001         (*sibcall_value_nonlocal_sysv<mode>): Likewise.
7002         (indirect_jump<mode>_nospec): Change assembly output from . to $.
7003         (*tablejump<mode>_internal1_nospec): Likewise.
7004
7005 2018-01-21  Oleg Endo  <olegendo@gcc.gnu.org>
7006
7007         PR target/80870
7008         * config/sh/sh_optimize_sett_clrt.cc:
7009         Use INCLUDE_ALGORITHM and INCLUDE_VECTOR instead of direct includes.
7010
7011 2018-01-20  Richard Sandiford  <richard.sandiford@linaro.org>
7012
7013         PR tree-optimization/83940
7014         * tree-vect-stmts.c (vect_truncate_gather_scatter_offset): Set
7015         offset_dt to vect_constant_def rather than vect_unknown_def_type.
7016         (vect_check_load_store_mask): Add a mask_dt_out parameter and
7017         use it to pass back the definition type.
7018         (vect_check_store_rhs): Likewise rhs_dt_out.
7019         (vect_build_gather_load_calls): Add a mask_dt argument and use
7020         it instead of a call to vect_is_simple_use.
7021         (vectorizable_store): Update calls to vect_check_load_store_mask
7022         and vect_check_store_rhs.  Use the dt returned by the latter instead
7023         of scatter_src_dt.  Use the cached mask_dt and gs_info.offset_dt
7024         instead of calls to vect_is_simple_use.  Pass the scalar rather
7025         than the vector operand to vect_is_simple_use when handling
7026         second and subsequent copies of an rhs value.
7027         (vectorizable_load): Update calls to vect_check_load_store_mask
7028         and vect_build_gather_load_calls.  Use the cached mask_dt and
7029         gs_info.offset_dt instead of calls to vect_is_simple_use.
7030
7031 2018-01-20  Jakub Jelinek  <jakub@redhat.com>
7032
7033         PR middle-end/83945
7034         * tree-emutls.c: Include gimplify.h.
7035         (lower_emutls_2): New function.
7036         (lower_emutls_1): If ADDR_EXPR is a gimple invariant and walk_tree
7037         with lower_emutls_2 callback finds some TLS decl in it, unshare_expr
7038         it before further processing.
7039
7040         PR target/83930
7041         * simplify-rtx.c (simplify_binary_operation_1) <case UMOD>: Use
7042         UINTVAL (trueop1) instead of INTVAL (op1).
7043
7044 2018-01-19  Jakub Jelinek  <jakub@redhat.com>
7045
7046         PR debug/81570
7047         PR debug/83728
7048         * dwarf2cfi.c (DEFAULT_INCOMING_FRAME_SP_OFFSET): Define to
7049         INCOMING_FRAME_SP_OFFSET if not defined.
7050         (scan_trace): Add ENTRY argument.  If true and
7051         DEFAULT_INCOMING_FRAME_SP_OFFSET != INCOMING_FRAME_SP_OFFSET,
7052         emit a note to adjust the CFA offset.
7053         (create_cfi_notes): Adjust scan_trace callers.
7054         (create_cie_data): Use DEFAULT_INCOMING_FRAME_SP_OFFSET rather than
7055         INCOMING_FRAME_SP_OFFSET in the CIE.
7056         * config/i386/i386.h (DEFAULT_INCOMING_FRAME_SP_OFFSET): Define.
7057         * config/stormy16/stormy16.h (DEFAULT_INCOMING_FRAME_SP_OFFSET):
7058         Likewise.
7059         * doc/tm.texi.in (DEFAULT_INCOMING_FRAME_SP_OFFSET): Document.
7060         * doc/tm.texi: Regenerated.
7061
7062 2018-01-19  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
7063
7064         PR rtl-optimization/83147
7065         * lra-constraints.c (remove_inheritance_pseudos): Use
7066         lra_substitute_pseudo_within_insn.
7067
7068 2018-01-19  Tom de Vries  <tom@codesourcery.com>
7069             Cesar Philippidis  <cesar@codesourcery.com>
7070
7071         PR target/83920
7072         * config/nvptx/nvptx.c (nvptx_single): Fix jit workaround.
7073
7074 2018-01-19  Cesar Philippidis  <cesar@codesourcery.com>
7075
7076         PR target/83790
7077         * config/nvptx/nvptx.c (output_init_frag): Don't use generic address
7078         spaces for function labels.
7079
7080 2018-01-19  Martin Liska  <mliska@suse.cz>
7081
7082         * predict.def (PRED_LOOP_EXIT): Change from 85 to 89.
7083         (PRED_LOOP_EXIT_WITH_RECURSION): Change from 72 to 78.
7084         (PRED_LOOP_EXTRA_EXIT): Change from 83 to 67.
7085         (PRED_OPCODE_POSITIVE): Change from 64 to 59.
7086         (PRED_TREE_OPCODE_POSITIVE): Change from 64 to 59.
7087         (PRED_CONST_RETURN): Change from 69 to 65.
7088         (PRED_NULL_RETURN): Change from 91 to 71.
7089         (PRED_LOOP_IV_COMPARE_GUESS): Change from 98 to 64.
7090         (PRED_LOOP_GUARD): Change from 66 to 73.
7091
7092 2018-01-19  Martin Liska  <mliska@suse.cz>
7093
7094         * predict.c (predict_insn_def): Add new assert.
7095         (struct branch_predictor): Change type to signed integer.
7096         (test_prediction_value_range): Amend test to cover
7097         PROB_UNINITIALIZED.
7098         * predict.def (PRED_LOOP_ITERATIONS): Use the new constant.
7099         (PRED_LOOP_ITERATIONS_GUESSED): Likewise.
7100         (PRED_LOOP_ITERATIONS_MAX): Likewise.
7101         (PRED_LOOP_IV_COMPARE): Likewise.
7102         * predict.h (PROB_UNINITIALIZED): Define new constant.
7103
7104 2018-01-19  Martin Liska  <mliska@suse.cz>
7105
7106         * predict.c (dump_prediction): Add new format for
7107         analyze_brprob.py script which is enabled with -details
7108         suboption.
7109         * profile-count.h (precise_p): New function.
7110
7111 2018-01-19  Richard Sandiford  <richard.sandiford@linaro.org>
7112
7113         PR tree-optimization/83922
7114         * tree-vect-loop.c (vect_verify_full_masking): Return false if
7115         there are no statements that need masking.
7116         (vect_active_double_reduction_p): New function.
7117         (vect_analyze_loop_operations): Use it when handling phis that
7118         are not in the loop header.
7119
7120 2018-01-19  Richard Sandiford  <richard.sandiford@linaro.org>
7121
7122         PR tree-optimization/83914
7123         * tree-vect-loop.c (vectorizable_induction): Don't convert
7124         init_expr or apply the peeling adjustment for inductions
7125         that are nested within the vectorized loop.
7126
7127 2018-01-19  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
7128
7129         * config/arm/thumb2.md (*thumb2_negsi2_short): Use RSB mnemonic
7130         instead of NEG.
7131
7132 2018-01-18  Jakub Jelinek  <jakub@redhat.com>
7133
7134         PR sanitizer/81715
7135         PR testsuite/83882
7136         * function.h (gimplify_parameters): Add gimple_seq * argument.
7137         * function.c: Include gimple.h and options.h.
7138         (gimplify_parameters): Add cleanup argument, add CLOBBER stmts
7139         for the added local temporaries if needed.
7140         * gimplify.c (gimplify_body): Adjust gimplify_parameters caller,
7141         if there are any parameter cleanups, wrap whole body into a
7142         try/finally with the cleanups.
7143
7144 2018-01-18  Wilco Dijkstra  <wdijkstr@arm.com>
7145
7146         PR target/82964
7147         * config/aarch64/aarch64.c (aarch64_legitimate_constant_p):
7148         Use GET_MODE_CLASS for scalar floating point.
7149
7150 2018-01-18  Jan Hubicka  <hubicka@ucw.cz>
7151
7152         PR ipa/82256
7153         patch by PaX Team
7154         * cgraphclones.c (cgraph_node::create_version_clone_with_body):
7155         Fix call of call_cgraph_insertion_hooks.
7156
7157 2018-01-18  Martin Sebor  <msebor@redhat.com>
7158
7159         * doc/invoke.texi (-Wclass-memaccess): Tweak text.
7160
7161 2018-01-18  Jan Hubicka  <hubicka@ucw.cz>
7162
7163         PR ipa/83619
7164         * cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Update edge
7165         frequencies.
7166
7167 2018-01-18  Boris Kolpackov  <boris@codesynthesis.com>
7168
7169         PR other/70268
7170         * common.opt: (-ffile-prefix-map): New option.
7171         * opts.c (common_handle_option): Defer it.
7172         * opts-global.c (handle_common_deferred_options): Handle it.
7173         * debug.h (remap_debug_filename, add_debug_prefix_map): Move to...
7174         * file-prefix-map.h: New file.
7175         (remap_debug_filename, add_debug_prefix_map): ...here.
7176         (add_macro_prefix_map, add_file_prefix_map, remap_macro_filename): New.
7177         * final.c (debug_prefix_map, add_debug_prefix_map
7178         remap_debug_filename): Move to...
7179         * file-prefix-map.c: New file.
7180         (file_prefix_map, add_prefix_map, remap_filename) ...here and rename,
7181         generalize, get rid of alloca(), use strrchr() instead of strchr().
7182         (add_macro_prefix_map, add_debug_prefix_map, add_file_prefix_map):
7183         Implement in terms of add_prefix_map().
7184         (remap_macro_filename, remap_debug_filename): Implement in term of
7185         remap_filename().
7186         * Makefile.in (OBJS, PLUGIN_HEADERS): Add new files.
7187         * builtins.c (fold_builtin_FILE): Call remap_macro_filename().
7188         * dbxout.c: Include file-prefix-map.h.
7189         * varasm.c: Likewise.
7190         * vmsdbgout.c: Likewise.
7191         * xcoffout.c: Likewise.
7192         * dwarf2out.c: Likewise plus omit new options from DW_AT_producer.
7193         * doc/cppopts.texi (-fmacro-prefix-map): Document.
7194         * doc/invoke.texi (-ffile-prefix-map): Document.
7195         (-fdebug-prefix-map): Update description.
7196
7197 2018-01-18  Martin Liska  <mliska@suse.cz>
7198
7199         * config/i386/i386.c (indirect_thunk_name): Document that also
7200         lfence is emitted.
7201         (output_indirect_thunk): Document why both instructions
7202         (pause and lfence) are generated.
7203
7204 2018-01-18  Richard Biener  <rguenther@suse.de>
7205
7206         PR tree-optimization/83887
7207         * graphite-scop-detection.c
7208         (scop_detection::get_nearest_dom_with_single_entry): Remove.
7209         (scop_detection::get_nearest_pdom_with_single_exit): Likewise.
7210         (scop_detection::merge_sese): Re-implement with a flood-fill
7211         algorithm that properly finds a SESE region if it exists.
7212
7213 2018-01-18  Jakub Jelinek  <jakub@redhat.com>
7214
7215         PR c/61240
7216         * match.pd ((P + A) - P, P - (P + A), (P + A) - (P + B)): For
7217         pointer_diff optimizations use view_convert instead of convert.
7218
7219 2018-01-17  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
7220
7221         * config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
7222         Generate different code for -mno-speculate-indirect-jumps.
7223         (*call_value_indirect_nonlocal_sysv<mode>): Likewise.
7224         (*call_indirect_aix<mode>): Disable for
7225         -mno-speculate-indirect-jumps.
7226         (*call_indirect_aix<mode>_nospec): New define_insn.
7227         (*call_value_indirect_aix<mode>): Disable for
7228         -mno-speculate-indirect-jumps.
7229         (*call_value_indirect_aix<mode>_nospec): New define_insn.
7230         (*sibcall_nonlocal_sysv<mode>): Generate different code for
7231         -mno-speculate-indirect-jumps.
7232         (*sibcall_value_nonlocal_sysv<mode>): Likewise.
7233
7234 2018-01-17  Michael Meissner  <meissner@linux.vnet.ibm.com>
7235
7236         * config/rs6000/rs6000.c (rs6000_emit_move): If we load or store a
7237         long double type, set the flags for noting the default long double
7238         type, even if we don't pass or return a long double type.
7239
7240 2018-01-17  Jan Hubicka  <hubicka@ucw.cz>
7241
7242         PR ipa/83051
7243         * ipa-inline.c (flatten_function): Do not overwrite final inlining
7244         failure.
7245
7246 2018-01-17  Will Schmidt  <will_schmidt@vnet.ibm.com>
7247
7248         * config/rs6000/rs6000.c (rs6000_gimple_builtin): Add gimple folding
7249         support for merge[hl].
7250         (fold_mergehl_helper): New helper function.
7251         (tree-vector-builder.h): New #include for tree_vector_builder usage.
7252         * config/rs6000/altivec.md (altivec_vmrghw_direct): Add xxmrghw insn.
7253         (altivec_vmrglw_direct): Add xxmrglw insn.
7254
7255 2018-01-17  Andrew Waterman  <andrew@sifive.com>
7256
7257         * config/riscv/riscv.c (riscv_conditional_register_usage): If
7258         UNITS_PER_FP_ARG is 0, set call_used_regs to 1 for all FP regs.
7259
7260 2018-01-17  David Malcolm  <dmalcolm@redhat.com>
7261
7262         PR lto/83121
7263         * ipa-devirt.c (add_type_duplicate): When comparing memory layout,
7264         call the lto_location_cache before reading the
7265         DECL_SOURCE_LOCATION of the types.
7266
7267 2018-01-17  Wilco Dijkstra  <wdijkstr@arm.com>
7268             Richard Sandiford  <richard.sandiford@linaro.org>
7269
7270         * config/aarch64/aarch64.md (movti_aarch64): Use Uti constraint.
7271         * config/aarch64/aarch64.c (aarch64_mov128_immediate): New function.
7272         (aarch64_legitimate_constant_p): Just support CONST_DOUBLE
7273         SF/DF/TF mode to avoid creating illegal CONST_WIDE_INT immediates.
7274         * config/aarch64/aarch64-protos.h (aarch64_mov128_immediate):
7275         Add declaration.
7276         * config/aarch64/constraints.md (aarch64_movti_operand):
7277         Limit immediates.
7278         * config/aarch64/predicates.md (Uti): Add new constraint.
7279
7280 2018-01-17 Carl Love  <cel@us.ibm.com>
7281
7282         * config/rs6000/vsx.md (define_expand xl_len_r,
7283         define_expand stxvl, define_expand *stxvl): Add match_dup argument.
7284         (define_insn): Add, match_dup 1 argument to define_insn stxvll and
7285         lxvll.
7286         (define_expand, define_insn): Move the shift left from  the
7287         define_insn to the define_expand for lxvl and stxvl instructions.
7288         * config/rs6000/rs6000-builtin.def (BU_P9V_64BIT_VSX_2): Change LXVL
7289         and XL_LEN_R definitions to PURE.
7290
7291 2018-01-17  Uros Bizjak  <ubizjak@gmail.com>
7292
7293         * config/i386/i386.c (indirect_thunk_name): Declare regno
7294         as unsigned int.  Compare regno with INVALID_REGNUM.
7295         (output_indirect_thunk): Ditto.
7296         (output_indirect_thunk_function): Ditto.
7297         (ix86_code_end): Declare regno as unsigned int.  Use INVALID_REGNUM
7298         in the call to output_indirect_thunk_function.
7299
7300 2018-01-17  Richard Sandiford  <richard.sandiford@linaro.org>
7301
7302         PR middle-end/83884
7303         * expr.c (expand_expr_real_1): Use the size of GET_MODE (op0)
7304         rather than the size of inner_type to determine the stack slot size
7305         when handling VIEW_CONVERT_EXPRs on strict-alignment targets.
7306
7307 2018-01-16  Sebastian Peryt  <sebastian.peryt@intel.com>
7308
7309         PR target/83546
7310         * config/i386/i386.c (ix86_option_override_internal): Add PTA_RDRND
7311         to PTA_SILVERMONT.
7312
7313 2018-01-16  Michael Meissner  <meissner@linux.vnet.ibm.com>
7314
7315         * config.gcc (powerpc*-linux*-*): Add support for 64-bit little
7316         endian Linux systems to optionally enable multilibs for selecting
7317         the long double type if the user configured an explicit type.
7318         * config/rs6000/rs6000.h (TARGET_IEEEQUAD_MULTILIB): Indicate we
7319         have no long double multilibs if not defined.
7320         * config/rs6000/rs6000.c (rs6000_option_override_internal): Do not
7321         warn if the user used -mabi={ieee,ibm}longdouble and we built
7322         multilibs for long double.
7323         * config/rs6000/linux64.h (MULTILIB_DEFAULTS_IEEE): Define as the
7324         appropriate multilib option.
7325         (MULTILIB_DEFAULTS): Add MULTILIB_DEFAULTS_IEEE to the default
7326         multilib options.
7327         * config/rs6000/t-ldouble-linux64le-ibm: New configuration files
7328         for building long double multilibs.
7329         * config/rs6000/t-ldouble-linux64le-ieee: Likewise.
7330
7331 2018-01-16  John David Anglin  <danglin@gcc.gnu.org>
7332
7333         * config.gcc (hppa*-*-linux*): Change callee copies ABI to caller
7334         copies.
7335
7336         * config/pa.h (MALLOC_ABI_ALIGNMENT): Set 32-bit alignment default to
7337         64 bits.
7338         * config/pa/pa32-linux.h (MALLOC_ABI_ALIGNMENT): Set alignment to
7339         128 bits.
7340
7341         * config/pa/som.h (ASM_DECLARE_FUNCTION_NAME): Cleanup type and mode
7342         variables.
7343
7344         * config/pa/pa.c (pa_function_arg_size): Apply CEIL to GET_MODE_SIZE
7345         return value.
7346
7347 2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>
7348
7349         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): For an
7350         ADDR_EXPR, do not count the offset of a COMPONENT_REF twice.
7351
7352 2018-01-16  Kelvin Nilsen  <kelvin@gcc.gnu.org>
7353
7354         * config/rs6000/rs6000-p8swap.c (rs6000_gen_stvx): Generate
7355         different rtl trees depending on TARGET_64BIT.
7356         (rs6000_gen_lvx): Likewise.
7357
7358 2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>
7359
7360         * config/visium/visium.md (nop): Tweak comment.
7361         (hazard_nop): Likewise.
7362
7363 2018-01-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
7364
7365         * config/rs6000/rs6000.c (rs6000_opt_vars): Add entry for
7366         -mspeculate-indirect-jumps.
7367         * config/rs6000/rs6000.md (*call_indirect_elfv2<mode>): Disable
7368         for -mno-speculate-indirect-jumps.
7369         (*call_indirect_elfv2<mode>_nospec): New define_insn.
7370         (*call_value_indirect_elfv2<mode>): Disable for
7371         -mno-speculate-indirect-jumps.
7372         (*call_value_indirect_elfv2<mode>_nospec): New define_insn.
7373         (indirect_jump): Emit different RTL for
7374         -mno-speculate-indirect-jumps.
7375         (*indirect_jump<mode>): Disable for
7376         -mno-speculate-indirect-jumps.
7377         (*indirect_jump<mode>_nospec): New define_insn.
7378         (tablejump): Emit different RTL for
7379         -mno-speculate-indirect-jumps.
7380         (tablejumpsi): Disable for -mno-speculate-indirect-jumps.
7381         (tablejumpsi_nospec): New define_expand.
7382         (tablejumpdi): Disable for -mno-speculate-indirect-jumps.
7383         (tablejumpdi_nospec): New define_expand.
7384         (*tablejump<mode>_internal1): Disable for
7385         -mno-speculate-indirect-jumps.
7386         (*tablejump<mode>_internal1_nospec): New define_insn.
7387         * config/rs6000/rs6000.opt (mspeculate-indirect-jumps): New
7388         option.
7389
7390 2018-01-16  Artyom Skrobov tyomitch@gmail.com
7391
7392         * caller-save.c (insert_save): Drop unnecessary parameter.  All
7393         callers updated.
7394
7395 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
7396             Richard Biener  <rguenth@suse.de>
7397
7398         PR libgomp/83590
7399         * gimplify.c (gimplify_one_sizepos): For is_gimple_constant (expr)
7400         return early, inline manually is_gimple_sizepos.  Make sure if we
7401         call gimplify_expr we don't end up with a gimple constant.
7402         * tree.c (variably_modified_type_p): Don't return true for
7403         is_gimple_constant (_t).  Inline manually is_gimple_sizepos.
7404         * gimplify.h (is_gimple_sizepos): Remove.
7405
7406 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
7407
7408         PR tree-optimization/83857
7409         * tree-vect-loop.c (vect_analyze_loop_operations): Don't call
7410         vectorizable_live_operation for pure SLP statements.
7411         (vectorizable_live_operation): Handle PHIs.
7412
7413 2018-01-16  Richard Biener  <rguenther@suse.de>
7414
7415         PR tree-optimization/83867
7416         * tree-vect-stmts.c (vect_transform_stmt): Precompute
7417         nested_in_vect_loop_p since the scalar stmt may get invalidated.
7418
7419 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
7420
7421         PR c/83844
7422         * stor-layout.c (handle_warn_if_not_align): Use byte_position and
7423         multiple_of_p instead of unchecked tree_to_uhwi and UHWI check.
7424         If off is not INTEGER_CST, issue a may not be aligned warning
7425         rather than isn't aligned.  Use isn%'t rather than isn't.
7426         * fold-const.c (multiple_of_p) <case BIT_AND_EXPR>: Don't fall through
7427         into MULT_EXPR.
7428         <case MULT_EXPR>: Improve the case when bottom and one of the
7429         MULT_EXPR operands are INTEGER_CSTs and bottom is multiple of that
7430         operand, in that case check if the other operand is multiple of
7431         bottom divided by the INTEGER_CST operand.
7432
7433 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
7434
7435         PR target/83858
7436         * config/pa/pa.h (FUNCTION_ARG_SIZE): Delete.
7437         * config/pa/pa-protos.h (pa_function_arg_size): Declare.
7438         * config/pa/som.h (ASM_DECLARE_FUNCTION_NAME): Use
7439         pa_function_arg_size instead of FUNCTION_ARG_SIZE.
7440         * config/pa/pa.c (pa_function_arg_advance): Likewise.
7441         (pa_function_arg, pa_arg_partial_bytes): Likewise.
7442         (pa_function_arg_size): New function.
7443
7444 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
7445
7446         * fold-const.c (fold_ternary_loc): Construct the vec_perm_indices
7447         in a separate statement.
7448
7449 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
7450
7451         PR tree-optimization/83847
7452         * tree-vect-data-refs.c (vect_analyze_data_ref_accesses): Don't
7453         group gathers and scatters.
7454
7455 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
7456
7457         PR rtl-optimization/86620
7458         * params.def (max-sched-ready-insns): Bump minimum value to 1.
7459
7460         PR rtl-optimization/83213
7461         * recog.c (peep2_attempt): Copy over CROSSING_JUMP_P from peepinsn
7462         to last if both are JUMP_INSNs.
7463
7464         PR tree-optimization/83843
7465         * gimple-ssa-store-merging.c
7466         (imm_store_chain_info::output_merged_store): Handle bit_not_p on
7467         store_immediate_info for bswap/nop orig_stores.
7468
7469 2018-01-15  Andrew Waterman  <andrew@sifive.com>
7470
7471         * config/riscv/riscv.c (riscv_rtx_costs) <MULT>: Increase cost if
7472         !TARGET_MUL.
7473         <UDIV>: Increase cost if !TARGET_DIV.
7474
7475 2018-01-15  Segher Boessenkool  <segher@kernel.crashing.org>
7476
7477         * config/rs6000/rs6000.md (define_attr "type"): Remove delayed_cr.
7478         (define_attr "cr_logical_3op"): New.
7479         (cceq_ior_compare): Adjust.
7480         (cceq_ior_compare_complement): Adjust.
7481         (*cceq_rev_compare): Adjust.
7482         * config/rs6000/rs6000.c (rs6000_adjust_cost): Adjust.
7483         (is_cracked_insn): Adjust.
7484         (insn_must_be_first_in_group): Adjust.
7485         * config/rs6000/40x.md: Adjust.
7486         * config/rs6000/440.md: Adjust.
7487         * config/rs6000/476.md: Adjust.
7488         * config/rs6000/601.md: Adjust.
7489         * config/rs6000/603.md: Adjust.
7490         * config/rs6000/6xx.md: Adjust.
7491         * config/rs6000/7450.md: Adjust.
7492         * config/rs6000/7xx.md: Adjust.
7493         * config/rs6000/8540.md: Adjust.
7494         * config/rs6000/cell.md: Adjust.
7495         * config/rs6000/e300c2c3.md: Adjust.
7496         * config/rs6000/e500mc.md: Adjust.
7497         * config/rs6000/e500mc64.md: Adjust.
7498         * config/rs6000/e5500.md: Adjust.
7499         * config/rs6000/e6500.md: Adjust.
7500         * config/rs6000/mpc.md: Adjust.
7501         * config/rs6000/power4.md: Adjust.
7502         * config/rs6000/power5.md: Adjust.
7503         * config/rs6000/power6.md: Adjust.
7504         * config/rs6000/power7.md: Adjust.
7505         * config/rs6000/power8.md: Adjust.
7506         * config/rs6000/power9.md: Adjust.
7507         * config/rs6000/rs64.md: Adjust.
7508         * config/rs6000/titan.md: Adjust.
7509
7510 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
7511
7512         * config/i386/predicates.md (indirect_branch_operand): Rewrite
7513         ix86_indirect_branch_register logic.
7514
7515 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
7516
7517         * config/i386/constraints.md (Bs): Update
7518         ix86_indirect_branch_register check.  Don't check
7519         ix86_indirect_branch_register with GOT_memory_operand.
7520         (Bw): Likewise.
7521         * config/i386/predicates.md (GOT_memory_operand): Don't check
7522         ix86_indirect_branch_register here.
7523         (GOT32_symbol_operand): Likewise.
7524
7525 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
7526
7527         * config/i386/predicates.md (constant_call_address_operand):
7528         Rewrite ix86_indirect_branch_register logic.
7529         (sibcall_insn_operand): Likewise.
7530
7531 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
7532
7533         * config/i386/constraints.md (Bs): Replace
7534         ix86_indirect_branch_thunk_register with
7535         ix86_indirect_branch_register.
7536         (Bw): Likewise.
7537         * config/i386/i386.md (indirect_jump): Likewise.
7538         (tablejump): Likewise.
7539         (*sibcall_memory): Likewise.
7540         (*sibcall_value_memory): Likewise.
7541         Peepholes of indirect call and jump via memory: Likewise.
7542         * config/i386/i386.opt: Likewise.
7543         * config/i386/predicates.md (indirect_branch_operand): Likewise.
7544         (GOT_memory_operand): Likewise.
7545         (call_insn_operand): Likewise.
7546         (sibcall_insn_operand): Likewise.
7547         (GOT32_symbol_operand): Likewise.
7548
7549 2018-01-15  Jakub Jelinek  <jakub@redhat.com>
7550
7551         PR middle-end/83837
7552         * omp-expand.c (expand_omp_atomic_pipeline): Use loaded_val
7553         type rather than type addr's type points to.
7554         (expand_omp_atomic_mutex): Likewise.
7555         (expand_omp_atomic): Likewise.
7556
7557 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
7558
7559         PR target/83839
7560         * config/i386/i386.c (output_indirect_thunk_function): Use
7561         ASM_OUTPUT_LABEL, instead of ASM_OUTPUT_DEF, for TARGET_MACHO
7562         for  __x86_return_thunk.
7563
7564 2018-01-15  Richard Biener  <rguenther@suse.de>
7565
7566         PR middle-end/83850
7567         * expmed.c (extract_bit_field_1): Fix typo.
7568
7569 2018-01-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
7570
7571         PR target/83687
7572         * config/arm/iterators.md (VF): New mode iterator.
7573         * config/arm/neon.md (neon_vabd<mode>_2): Use the above.
7574         Remove integer-related logic from pattern.
7575         (neon_vabd<mode>_3): Likewise.
7576
7577 2018-01-15  Jakub Jelinek  <jakub@redhat.com>
7578
7579         PR middle-end/82694
7580         * common.opt (fstrict-overflow): No longer an alias.
7581         (fwrapv-pointer): New option.
7582         * tree.h (TYPE_OVERFLOW_WRAPS, TYPE_OVERFLOW_UNDEFINED): Define
7583         also for pointer types based on flag_wrapv_pointer.
7584         * opts.c (common_handle_option) <case OPT_fstrict_overflow>: Set
7585         opts->x_flag_wrap[pv] to !value, clear opts->x_flag_trapv if
7586         opts->x_flag_wrapv got set.
7587         * fold-const.c (fold_comparison, fold_binary_loc): Revert 2017-08-01
7588         changes, just use TYPE_OVERFLOW_UNDEFINED on pointer type instead of
7589         POINTER_TYPE_OVERFLOW_UNDEFINED.
7590         * match.pd: Likewise in address comparison pattern.
7591         * doc/invoke.texi: Document -fwrapv and -fstrict-overflow.
7592
7593 2018-01-15  Richard Biener  <rguenther@suse.de>
7594
7595         PR lto/83804
7596         * tree.c (free_lang_data_in_type): Always unlink TYPE_DECLs
7597         from TYPE_FIELDS.  Free TYPE_BINFO if not used by devirtualization.
7598         Reset type names to their identifier if their TYPE_DECL doesn't
7599         have linkage (and thus is used for ODR and devirt).
7600         (save_debug_info_for_decl): Remove.
7601         (save_debug_info_for_type): Likewise.
7602         (add_tree_to_fld_list): Adjust.
7603         * tree-pretty-print.c (dump_generic_node): Make dumping of
7604         type names more robust.
7605
7606 2018-01-15  Richard Biener  <rguenther@suse.de>
7607
7608         * BASE-VER: Bump to 8.0.1.
7609
7610 2018-01-14  Martin Sebor  <msebor@redhat.com>
7611
7612         PR other/83508
7613         * builtins.c (check_access): Avoid warning when the no-warning bit
7614         is set.
7615
7616 2018-01-14  Cory Fields  <cory-nospam-@coryfields.com>
7617
7618         * tree-ssa-loop-im.c (sort_bbs_in_loop_postorder_cmp): Stabilize sort.
7619         * ira-color (allocno_hard_regs_compare): Likewise.
7620
7621 2018-01-14  Nathan Rossi  <nathan@nathanrossi.com>
7622
7623         PR target/83013
7624         * config/microblaze/microblaze.c (microblaze_asm_output_ident):
7625         Use .pushsection/.popsection.
7626
7627 2018-01-14  Martin Sebor  <msebor@redhat.com>
7628
7629         PR c++/81327
7630         * doc/invoke.texi (-Wlass-memaccess): Document suppression by casting.
7631
7632 2018-01-14  Jakub Jelinek  <jakub@redhat.com>
7633
7634         * config.gcc (i[34567]86-*-*): Remove one duplicate gfniintrin.h
7635         entry from extra_headers.
7636         (x86_64-*-*): Remove two duplicate gfniintrin.h entries from
7637         extra_headers, make the list bitwise identical to the i?86-*-* one.
7638
7639 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
7640
7641         * config/i386/i386.c (ix86_set_indirect_branch_type): Disallow
7642         -mcmodel=large with -mindirect-branch=thunk,
7643         -mindirect-branch=thunk-extern, -mfunction-return=thunk and
7644         -mfunction-return=thunk-extern.
7645         * doc/invoke.texi: Document -mcmodel=large is incompatible with
7646         -mindirect-branch=thunk, -mindirect-branch=thunk-extern,
7647         -mfunction-return=thunk and -mfunction-return=thunk-extern.
7648
7649 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
7650
7651         * config/i386/i386.c (print_reg): Print the name of the full
7652         integer register without '%'.
7653         (ix86_print_operand): Handle 'V'.
7654          * doc/extend.texi: Document 'V' modifier.
7655
7656 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
7657
7658         * config/i386/constraints.md (Bs): Disallow memory operand for
7659         -mindirect-branch-register.
7660         (Bw): Likewise.
7661         * config/i386/predicates.md (indirect_branch_operand): Likewise.
7662         (GOT_memory_operand): Likewise.
7663         (call_insn_operand): Likewise.
7664         (sibcall_insn_operand): Likewise.
7665         (GOT32_symbol_operand): Likewise.
7666         * config/i386/i386.md (indirect_jump): Call convert_memory_address
7667         for -mindirect-branch-register.
7668         (tablejump): Likewise.
7669         (*sibcall_memory): Likewise.
7670         (*sibcall_value_memory): Likewise.
7671         Disallow peepholes of indirect call and jump via memory for
7672         -mindirect-branch-register.
7673         (*call_pop): Replace m with Bw.
7674         (*call_value_pop): Likewise.
7675         (*sibcall_pop_memory): Replace m with Bs.
7676         * config/i386/i386.opt (mindirect-branch-register): New option.
7677         * doc/invoke.texi: Document -mindirect-branch-register option.
7678
7679 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
7680
7681         * config/i386/i386-protos.h (ix86_output_function_return): New.
7682         * config/i386/i386.c (ix86_set_indirect_branch_type): Also
7683         set function_return_type.
7684         (indirect_thunk_name): Add ret_p to indicate thunk for function
7685         return.
7686         (output_indirect_thunk_function): Pass false to
7687         indirect_thunk_name.
7688         (ix86_output_indirect_branch_via_reg): Likewise.
7689         (ix86_output_indirect_branch_via_push): Likewise.
7690         (output_indirect_thunk_function): Create alias for function
7691         return thunk if regno < 0.
7692         (ix86_output_function_return): New function.
7693         (ix86_handle_fndecl_attribute): Handle function_return.
7694         (ix86_attribute_table): Add function_return.
7695         * config/i386/i386.h (machine_function): Add
7696         function_return_type.
7697         * config/i386/i386.md (simple_return_internal): Use
7698         ix86_output_function_return.
7699         (simple_return_internal_long): Likewise.
7700         * config/i386/i386.opt (mfunction-return=): New option.
7701         (indirect_branch): Mention -mfunction-return=.
7702         * doc/extend.texi: Document function_return function attribute.
7703         * doc/invoke.texi: Document -mfunction-return= option.
7704
7705 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
7706
7707         * config/i386/i386-opts.h (indirect_branch): New.
7708         * config/i386/i386-protos.h (ix86_output_indirect_jmp): Likewise.
7709         * config/i386/i386.c (ix86_using_red_zone): Disallow red-zone
7710         with local indirect jump when converting indirect call and jump.
7711         (ix86_set_indirect_branch_type): New.
7712         (ix86_set_current_function): Call ix86_set_indirect_branch_type.
7713         (indirectlabelno): New.
7714         (indirect_thunk_needed): Likewise.
7715         (indirect_thunk_bnd_needed): Likewise.
7716         (indirect_thunks_used): Likewise.
7717         (indirect_thunks_bnd_used): Likewise.
7718         (INDIRECT_LABEL): Likewise.
7719         (indirect_thunk_name): Likewise.
7720         (output_indirect_thunk): Likewise.
7721         (output_indirect_thunk_function): Likewise.
7722         (ix86_output_indirect_branch_via_reg): Likewise.
7723         (ix86_output_indirect_branch_via_push): Likewise.
7724         (ix86_output_indirect_branch): Likewise.
7725         (ix86_output_indirect_jmp): Likewise.
7726         (ix86_code_end): Call output_indirect_thunk_function if needed.
7727         (ix86_output_call_insn): Call ix86_output_indirect_branch if
7728         needed.
7729         (ix86_handle_fndecl_attribute): Handle indirect_branch.
7730         (ix86_attribute_table): Add indirect_branch.
7731         * config/i386/i386.h (machine_function): Add indirect_branch_type
7732         and has_local_indirect_jump.
7733         * config/i386/i386.md (indirect_jump): Set has_local_indirect_jump
7734         to true.
7735         (tablejump): Likewise.
7736         (*indirect_jump): Use ix86_output_indirect_jmp.
7737         (*tablejump_1): Likewise.
7738         (simple_return_indirect_internal): Likewise.
7739         * config/i386/i386.opt (mindirect-branch=): New option.
7740         (indirect_branch): New.
7741         (keep): Likewise.
7742         (thunk): Likewise.
7743         (thunk-inline): Likewise.
7744         (thunk-extern): Likewise.
7745         * doc/extend.texi: Document indirect_branch function attribute.
7746         * doc/invoke.texi: Document -mindirect-branch= option.
7747
7748 2018-01-14  Jan Hubicka  <hubicka@ucw.cz>
7749
7750         PR ipa/83051
7751         * ipa-inline.c (edge_badness): Tolerate roundoff errors.
7752
7753 2018-01-14  Richard Sandiford  <richard.sandiford@linaro.org>
7754
7755         * ipa-inline.c (want_inline_small_function_p): Return false if
7756         inlining has already failed with CIF_FINAL_ERROR.
7757         (update_caller_keys): Call want_inline_small_function_p before
7758         can_inline_edge_p.
7759         (update_callee_keys): Likewise.
7760
7761 2018-01-10  Kelvin Nilsen  <kelvin@gcc.gnu.org>
7762
7763         * config/rs6000/rs6000-p8swap.c (rs6000_sum_of_two_registers_p):
7764         New function.
7765         (rs6000_quadword_masked_address_p): Likewise.
7766         (quad_aligned_load_p): Likewise.
7767         (quad_aligned_store_p): Likewise.
7768         (const_load_sequence_p): Add comment to describe the outer-most loop.
7769         (mimic_memory_attributes_and_flags): New function.
7770         (rs6000_gen_stvx): Likewise.
7771         (replace_swapped_aligned_store): Likewise.
7772         (rs6000_gen_lvx): Likewise.
7773         (replace_swapped_aligned_load): Likewise.
7774         (replace_swapped_load_constant): Capitalize argument name in
7775         comment describing this function.
7776         (rs6000_analyze_swaps): Add a third pass to search for vector loads
7777         and stores that access quad-word aligned addresses and replace
7778         with stvx or lvx instructions when appropriate.
7779         * config/rs6000/rs6000-protos.h (rs6000_sum_of_two_registers_p):
7780         New function prototype.
7781         (rs6000_quadword_masked_address_p): Likewise.
7782         (rs6000_gen_lvx): Likewise.
7783         (rs6000_gen_stvx): Likewise.
7784         * config/rs6000/vsx.md (*vsx_le_perm_load_<mode>): For modes
7785         VSX_D (V2DF, V2DI), modify this split to select lvx instruction
7786         when memory address is aligned.
7787         (*vsx_le_perm_load_<mode>): For modes VSX_W (V4SF, V4SI), modify
7788         this split to select lvx instruction when memory address is aligned.
7789         (*vsx_le_perm_load_v8hi): Modify this split to select lvx
7790         instruction when memory address is aligned.
7791         (*vsx_le_perm_load_v16qi): Likewise.
7792         (four unnamed splitters): Modify to select the stvx instruction
7793         when memory is aligned.
7794
7795 2018-01-13  Jan Hubicka  <hubicka@ucw.cz>
7796
7797         * predict.c (determine_unlikely_bbs): Handle correctly BBs
7798         which appears in the queue multiple times.
7799
7800 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7801             Alan Hayward  <alan.hayward@arm.com>
7802             David Sherwood  <david.sherwood@arm.com>
7803
7804         * tree-vectorizer.h (vec_lower_bound): New structure.
7805         (_loop_vec_info): Add check_nonzero and lower_bounds.
7806         (LOOP_VINFO_CHECK_NONZERO): New macro.
7807         (LOOP_VINFO_LOWER_BOUNDS): Likewise.
7808         (LOOP_REQUIRES_VERSIONING_FOR_ALIAS): Check lower_bounds too.
7809         * tree-data-ref.h (dr_with_seg_len): Add access_size and align
7810         fields.  Make seg_len the distance travelled, not including the
7811         access size.
7812         (dr_direction_indicator): Declare.
7813         (dr_zero_step_indicator): Likewise.
7814         (dr_known_forward_stride_p): Likewise.
7815         * tree-data-ref.c: Include stringpool.h, tree-vrp.h and
7816         tree-ssanames.h.
7817         (runtime_alias_check_p): Allow runtime alias checks with
7818         variable strides.
7819         (operator ==): Compare access_size and align.
7820         (prune_runtime_alias_test_list): Rework for new distinction between
7821         the access_size and seg_len.
7822         (create_intersect_range_checks_index): Likewise.  Cope with polynomial
7823         segment lengths.
7824         (get_segment_min_max): New function.
7825         (create_intersect_range_checks): Use it.
7826         (dr_step_indicator): New function.
7827         (dr_direction_indicator): Likewise.
7828         (dr_zero_step_indicator): Likewise.
7829         (dr_known_forward_stride_p): Likewise.
7830         * tree-loop-distribution.c (data_ref_segment_size): Return
7831         DR_STEP * (niters - 1).
7832         (compute_alias_check_pairs): Update call to the dr_with_seg_len
7833         constructor.
7834         * tree-vect-data-refs.c (vect_check_nonzero_value): New function.
7835         (vect_preserves_scalar_order_p): New function, split out from...
7836         (vect_analyze_data_ref_dependence): ...here.  Check for zero steps.
7837         (vect_vfa_segment_size): Return DR_STEP * (length_factor - 1).
7838         (vect_vfa_access_size): New function.
7839         (vect_vfa_align): Likewise.
7840         (vect_compile_time_alias): Take access_size_a and access_b arguments.
7841         (dump_lower_bound): New function.
7842         (vect_check_lower_bound): Likewise.
7843         (vect_small_gap_p): Likewise.
7844         (vectorizable_with_step_bound_p): Likewise.
7845         (vect_prune_runtime_alias_test_list): Ignore cross-iteration
7846         depencies if the vectorization factor is 1.  Convert the checks
7847         for nonzero steps into checks on the bounds of DR_STEP.  Try using
7848         a bunds check for variable steps if the minimum required step is
7849         relatively small. Update calls to the dr_with_seg_len
7850         constructor and to vect_compile_time_alias.
7851         * tree-vect-loop-manip.c (vect_create_cond_for_lower_bounds): New
7852         function.
7853         (vect_loop_versioning): Call it.
7854         * tree-vect-loop.c (vect_analyze_loop_2): Clear LOOP_VINFO_LOWER_BOUNDS
7855         when retrying.
7856         (vect_estimate_min_profitable_iters): Account for any bounds checks.
7857
7858 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7859             Alan Hayward  <alan.hayward@arm.com>
7860             David Sherwood  <david.sherwood@arm.com>
7861
7862         * doc/sourcebuild.texi (vect_scatter_store): Document.
7863         * optabs.def (scatter_store_optab, mask_scatter_store_optab): New
7864         optabs.
7865         * doc/md.texi (scatter_store@var{m}, mask_scatter_store@var{m}):
7866         Document.
7867         * genopinit.c (main): Add supports_vec_scatter_store and
7868         supports_vec_scatter_store_cached to target_optabs.
7869         * gimple.h (gimple_expr_type): Handle IFN_SCATTER_STORE and
7870         IFN_MASK_SCATTER_STORE.
7871         * internal-fn.def (SCATTER_STORE, MASK_SCATTER_STORE): New internal
7872         functions.
7873         * internal-fn.h (internal_store_fn_p): Declare.
7874         (internal_fn_stored_value_index): Likewise.
7875         * internal-fn.c (scatter_store_direct): New macro.
7876         (expand_scatter_store_optab_fn): New function.
7877         (direct_scatter_store_optab_supported_p): New macro.
7878         (internal_store_fn_p): New function.
7879         (internal_gather_scatter_fn_p): Handle IFN_SCATTER_STORE and
7880         IFN_MASK_SCATTER_STORE.
7881         (internal_fn_mask_index): Likewise.
7882         (internal_fn_stored_value_index): New function.
7883         (internal_gather_scatter_fn_supported_p): Adjust operand numbers
7884         for scatter stores.
7885         * optabs-query.h (supports_vec_scatter_store_p): Declare.
7886         * optabs-query.c (supports_vec_scatter_store_p): New function.
7887         * tree-vectorizer.h (vect_get_store_rhs): Declare.
7888         * tree-vect-data-refs.c (vect_analyze_data_ref_access): Return
7889         true for scatter stores.
7890         (vect_gather_scatter_fn_p): Handle scatter stores too.
7891         (vect_check_gather_scatter): Consider using scatter stores if
7892         supports_vec_scatter_store_p.
7893         * tree-vect-patterns.c (vect_try_gather_scatter_pattern): Handle
7894         scatter stores too.
7895         * tree-vect-stmts.c (exist_non_indexing_operands_for_use_p): Use
7896         internal_fn_stored_value_index.
7897         (check_load_store_masking): Handle scatter stores too.
7898         (vect_get_store_rhs): Make public.
7899         (vectorizable_call): Use internal_store_fn_p.
7900         (vectorizable_store): Handle scatter store internal functions.
7901         (vect_transform_stmt): Compare GROUP_STORE_COUNT with GROUP_SIZE
7902         when deciding whether the end of the group has been reached.
7903         * config/aarch64/aarch64.md (UNSPEC_ST1_SCATTER): New unspec.
7904         * config/aarch64/aarch64-sve.md (scatter_store<mode>): New expander.
7905         (mask_scatter_store<mode>): New insns.
7906
7907 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7908             Alan Hayward  <alan.hayward@arm.com>
7909             David Sherwood  <david.sherwood@arm.com>
7910
7911         * tree-vectorizer.h (vect_gather_scatter_fn_p): Declare.
7912         * tree-vect-data-refs.c (vect_gather_scatter_fn_p): Make public.
7913         * tree-vect-stmts.c (vect_truncate_gather_scatter_offset): New
7914         function.
7915         (vect_use_strided_gather_scatters_p): Take a masked_p argument.
7916         Use vect_truncate_gather_scatter_offset if we can't treat the
7917         operation as a normal gather load or scatter store.
7918         (get_group_load_store_type): Take the gather_scatter_info
7919         as argument.  Try using a gather load or scatter store for
7920         single-element groups.
7921         (get_load_store_type): Update calls to get_group_load_store_type
7922         and vect_use_strided_gather_scatters_p.
7923
7924 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7925             Alan Hayward  <alan.hayward@arm.com>
7926             David Sherwood  <david.sherwood@arm.com>
7927
7928         * tree-vectorizer.h (vect_create_data_ref_ptr): Take an extra
7929         optional tree argument.
7930         * tree-vect-data-refs.c (vect_check_gather_scatter): Check for
7931         null target hooks.
7932         (vect_create_data_ref_ptr): Take the iv_step as an optional argument,
7933         but continue to use the current value as a fallback.
7934         (bump_vector_ptr): Use operand_equal_p rather than tree_int_cst_compare
7935         to compare the updates.
7936         * tree-vect-stmts.c (vect_use_strided_gather_scatters_p): New function.
7937         (get_load_store_type): Use it when handling a strided access.
7938         (vect_get_strided_load_store_ops): New function.
7939         (vect_get_data_ptr_increment): Likewise.
7940         (vectorizable_load): Handle strided gather loads.  Always pass
7941         a step to vect_create_data_ref_ptr and bump_vector_ptr.
7942
7943 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7944             Alan Hayward  <alan.hayward@arm.com>
7945             David Sherwood  <david.sherwood@arm.com>
7946
7947         * doc/md.texi (gather_load@var{m}): Document.
7948         (mask_gather_load@var{m}): Likewise.
7949         * genopinit.c (main): Add supports_vec_gather_load and
7950         supports_vec_gather_load_cached to target_optabs.
7951         * optabs-tree.c (init_tree_optimization_optabs): Use
7952         ggc_cleared_alloc to allocate target_optabs.
7953         * optabs.def (gather_load_optab, mask_gather_laod_optab): New optabs.
7954         * internal-fn.def (GATHER_LOAD, MASK_GATHER_LOAD): New internal
7955         functions.
7956         * internal-fn.h (internal_load_fn_p): Declare.
7957         (internal_gather_scatter_fn_p): Likewise.
7958         (internal_fn_mask_index): Likewise.
7959         (internal_gather_scatter_fn_supported_p): Likewise.
7960         * internal-fn.c (gather_load_direct): New macro.
7961         (expand_gather_load_optab_fn): New function.
7962         (direct_gather_load_optab_supported_p): New macro.
7963         (direct_internal_fn_optab): New function.
7964         (internal_load_fn_p): Likewise.
7965         (internal_gather_scatter_fn_p): Likewise.
7966         (internal_fn_mask_index): Likewise.
7967         (internal_gather_scatter_fn_supported_p): Likewise.
7968         * optabs-query.c (supports_at_least_one_mode_p): New function.
7969         (supports_vec_gather_load_p): Likewise.
7970         * optabs-query.h (supports_vec_gather_load_p): Declare.
7971         * tree-vectorizer.h (gather_scatter_info): Add ifn, element_type
7972         and memory_type field.
7973         (NUM_PATTERNS): Bump to 15.
7974         * tree-vect-data-refs.c: Include internal-fn.h.
7975         (vect_gather_scatter_fn_p): New function.
7976         (vect_describe_gather_scatter_call): Likewise.
7977         (vect_check_gather_scatter): Try using internal functions for
7978         gather loads.  Recognize existing calls to a gather load function.
7979         (vect_analyze_data_refs): Consider using gather loads if
7980         supports_vec_gather_load_p.
7981         * tree-vect-patterns.c (vect_get_load_store_mask): New function.
7982         (vect_get_gather_scatter_offset_type): Likewise.
7983         (vect_convert_mask_for_vectype): Likewise.
7984         (vect_add_conversion_to_patterm): Likewise.
7985         (vect_try_gather_scatter_pattern): Likewise.
7986         (vect_recog_gather_scatter_pattern): New pattern recognizer.
7987         (vect_vect_recog_func_ptrs): Add it.
7988         * tree-vect-stmts.c (exist_non_indexing_operands_for_use_p): Use
7989         internal_fn_mask_index and internal_gather_scatter_fn_p.
7990         (check_load_store_masking): Take the gather_scatter_info as an
7991         argument and handle gather loads.
7992         (vect_get_gather_scatter_ops): New function.
7993         (vectorizable_call): Check internal_load_fn_p.
7994         (vectorizable_load): Likewise.  Handle gather load internal
7995         functions.
7996         (vectorizable_store): Update call to check_load_store_masking.
7997         * config/aarch64/aarch64.md (UNSPEC_LD1_GATHER): New unspec.
7998         * config/aarch64/iterators.md (SVE_S, SVE_D): New mode iterators.
7999         * config/aarch64/predicates.md (aarch64_gather_scale_operand_w)
8000         (aarch64_gather_scale_operand_d): New predicates.
8001         * config/aarch64/aarch64-sve.md (gather_load<mode>): New expander.
8002         (mask_gather_load<mode>): New insns.
8003
8004 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8005             Alan Hayward  <alan.hayward@arm.com>
8006             David Sherwood  <david.sherwood@arm.com>
8007
8008         * optabs.def (fold_left_plus_optab): New optab.
8009         * doc/md.texi (fold_left_plus_@var{m}): Document.
8010         * internal-fn.def (IFN_FOLD_LEFT_PLUS): New internal function.
8011         * internal-fn.c (fold_left_direct): Define.
8012         (expand_fold_left_optab_fn): Likewise.
8013         (direct_fold_left_optab_supported_p): Likewise.
8014         * fold-const-call.c (fold_const_fold_left): New function.
8015         (fold_const_call): Use it to fold CFN_FOLD_LEFT_PLUS.
8016         * tree-parloops.c (valid_reduction_p): New function.
8017         (gather_scalar_reductions): Use it.
8018         * tree-vectorizer.h (FOLD_LEFT_REDUCTION): New vect_reduction_type.
8019         (vect_finish_replace_stmt): Declare.
8020         * tree-vect-loop.c (fold_left_reduction_fn): New function.
8021         (needs_fold_left_reduction_p): New function, split out from...
8022         (vect_is_simple_reduction): ...here.  Accept reductions that
8023         forbid reassociation, but give them type FOLD_LEFT_REDUCTION.
8024         (vect_force_simple_reduction): Also store the reduction type in
8025         the assignment's STMT_VINFO_REDUC_TYPE.
8026         (vect_model_reduction_cost): Handle FOLD_LEFT_REDUCTION.
8027         (merge_with_identity): New function.
8028         (vect_expand_fold_left): Likewise.
8029         (vectorize_fold_left_reduction): Likewise.
8030         (vectorizable_reduction): Handle FOLD_LEFT_REDUCTION.  Leave the
8031         scalar phi in place for it.  Check for target support and reject
8032         cases that would reassociate the operation.  Defer the transform
8033         phase to vectorize_fold_left_reduction.
8034         * config/aarch64/aarch64.md (UNSPEC_FADDA): New unspec.
8035         * config/aarch64/aarch64-sve.md (fold_left_plus_<mode>): New expander.
8036         (*fold_left_plus_<mode>, *pred_fold_left_plus_<mode>): New insns.
8037
8038 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8039
8040         * tree-if-conv.c (predicate_mem_writes): Remove redundant
8041         call to ifc_temp_var.
8042
8043 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8044             Alan Hayward  <alan.hayward@arm.com>
8045             David Sherwood  <david.sherwood@arm.com>
8046
8047         * target.def (legitimize_address_displacement): Take the original
8048         offset as a poly_int.
8049         * targhooks.h (default_legitimize_address_displacement): Update
8050         accordingly.
8051         * targhooks.c (default_legitimize_address_displacement): Likewise.
8052         * doc/tm.texi: Regenerate.
8053         * lra-constraints.c (base_plus_disp_to_reg): Take the displacement
8054         as an argument, moving assert of ad->disp == ad->disp_term to...
8055         (process_address_1): ...here.  Update calls to base_plus_disp_to_reg.
8056         Try calling targetm.legitimize_address_displacement before expanding
8057         the address rather than afterwards, and adjust for the new interface.
8058         * config/aarch64/aarch64.c (aarch64_legitimize_address_displacement):
8059         Match the new hook interface.  Handle SVE addresses.
8060         * config/sh/sh.c (sh_legitimize_address_displacement): Make the
8061         new hook interface.
8062
8063 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8064
8065         * Makefile.in (OBJS): Add early-remat.o.
8066         * target.def (select_early_remat_modes): New hook.
8067         * doc/tm.texi.in (TARGET_SELECT_EARLY_REMAT_MODES): New hook.
8068         * doc/tm.texi: Regenerate.
8069         * targhooks.h (default_select_early_remat_modes): Declare.
8070         * targhooks.c (default_select_early_remat_modes): New function.
8071         * timevar.def (TV_EARLY_REMAT): New timevar.
8072         * passes.def (pass_early_remat): New pass.
8073         * tree-pass.h (make_pass_early_remat): Declare.
8074         * early-remat.c: New file.
8075         * config/aarch64/aarch64.c (aarch64_select_early_remat_modes): New
8076         function.
8077         (TARGET_SELECT_EARLY_REMAT_MODES): Define.
8078
8079 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8080             Alan Hayward  <alan.hayward@arm.com>
8081             David Sherwood  <david.sherwood@arm.com>
8082
8083         * tree-vect-loop-manip.c (vect_gen_scalar_loop_niters): Replace
8084         vfm1 with a bound_epilog parameter.
8085         (vect_do_peeling): Update calls accordingly, and move the prologue
8086         call earlier in the function.  Treat the base bound_epilog as 0 for
8087         fully-masked loops and retain vf - 1 for other loops.  Add 1 to
8088         this base when peeling for gaps.
8089         * tree-vect-loop.c (vect_analyze_loop_2): Allow peeling for gaps
8090         with fully-masked loops.
8091         (vect_estimate_min_profitable_iters): Handle the single peeled
8092         iteration in that case.
8093
8094 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8095             Alan Hayward  <alan.hayward@arm.com>
8096             David Sherwood  <david.sherwood@arm.com>
8097
8098         * tree-vect-data-refs.c (vect_analyze_group_access_1): Allow
8099         single-element interleaving even if the size is not a power of 2.
8100         * tree-vect-stmts.c (get_load_store_type): Disallow elementwise
8101         accesses for single-element interleaving if the group size is
8102         not a power of 2.
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         * doc/md.texi (fold_extract_last_@var{m}): Document.
8109         * doc/sourcebuild.texi (vect_fold_extract_last): Likewise.
8110         * optabs.def (fold_extract_last_optab): New optab.
8111         * internal-fn.def (FOLD_EXTRACT_LAST): New internal function.
8112         * internal-fn.c (fold_extract_direct): New macro.
8113         (expand_fold_extract_optab_fn): Likewise.
8114         (direct_fold_extract_optab_supported_p): Likewise.
8115         * tree-vectorizer.h (EXTRACT_LAST_REDUCTION): New vect_reduction_type.
8116         * tree-vect-loop.c (vect_model_reduction_cost): Handle
8117         EXTRACT_LAST_REDUCTION.
8118         (get_initial_def_for_reduction): Do not create an initial vector
8119         for EXTRACT_LAST_REDUCTION reductions.
8120         (vectorizable_reduction): Leave the scalar phi in place for
8121         EXTRACT_LAST_REDUCTIONs.  Try using EXTRACT_LAST_REDUCTION
8122         ahead of INTEGER_INDUC_COND_REDUCTION.  Do not check for an
8123         epilogue code for EXTRACT_LAST_REDUCTION and defer the
8124         transform phase to vectorizable_condition.
8125         * tree-vect-stmts.c (vect_finish_stmt_generation_1): New function,
8126         split out from...
8127         (vect_finish_stmt_generation): ...here.
8128         (vect_finish_replace_stmt): New function.
8129         (vectorizable_condition): Handle EXTRACT_LAST_REDUCTION.
8130         * config/aarch64/aarch64-sve.md (fold_extract_last_<mode>): New
8131         pattern.
8132         * config/aarch64/aarch64.md (UNSPEC_CLASTB): New unspec.
8133
8134 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8135             Alan Hayward  <alan.hayward@arm.com>
8136             David Sherwood  <david.sherwood@arm.com>
8137
8138         * doc/md.texi (extract_last_@var{m}): Document.
8139         * optabs.def (extract_last_optab): New optab.
8140         * internal-fn.def (EXTRACT_LAST): New internal function.
8141         * internal-fn.c (cond_unary_direct): New macro.
8142         (expand_cond_unary_optab_fn): Likewise.
8143         (direct_cond_unary_optab_supported_p): Likewise.
8144         * tree-vect-loop.c (vectorizable_live_operation): Allow fully-masked
8145         loops using EXTRACT_LAST.
8146         * config/aarch64/aarch64-sve.md (aarch64_sve_lastb<mode>): Rename to...
8147         (extract_last_<mode>): ...this optab.
8148         (vec_extract<mode><Vel>): Update accordingly.
8149
8150 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8151             Alan Hayward  <alan.hayward@arm.com>
8152             David Sherwood  <david.sherwood@arm.com>
8153
8154         * target.def (empty_mask_is_expensive): New hook.
8155         * doc/tm.texi.in (TARGET_VECTORIZE_EMPTY_MASK_IS_EXPENSIVE): New hook.
8156         * doc/tm.texi: Regenerate.
8157         * targhooks.h (default_empty_mask_is_expensive): Declare.
8158         * targhooks.c (default_empty_mask_is_expensive): New function.
8159         * tree-vectorizer.c (vectorize_loops): Only call optimize_mask_stores
8160         if the target says that empty masks are expensive.
8161         * config/aarch64/aarch64.c (aarch64_empty_mask_is_expensive):
8162         New function.
8163         (TARGET_VECTORIZE_EMPTY_MASK_IS_EXPENSIVE): Redefine.
8164
8165 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8166             Alan Hayward  <alan.hayward@arm.com>
8167             David Sherwood  <david.sherwood@arm.com>
8168
8169         * tree-vectorizer.h (_loop_vec_info::mask_skip_niters): New field.
8170         (LOOP_VINFO_MASK_SKIP_NITERS): New macro.
8171         (vect_use_loop_mask_for_alignment_p): New function.
8172         (vect_prepare_for_masked_peels, vect_gen_while_not): Declare.
8173         * tree-vect-loop-manip.c (vect_set_loop_masks_directly): Add an
8174         niters_skip argument.  Make sure that the first niters_skip elements
8175         of the first iteration are inactive.
8176         (vect_set_loop_condition_masked): Handle LOOP_VINFO_MASK_SKIP_NITERS.
8177         Update call to vect_set_loop_masks_directly.
8178         (get_misalign_in_elems): New function, split out from...
8179         (vect_gen_prolog_loop_niters): ...here.
8180         (vect_update_init_of_dr): Take a code argument that specifies whether
8181         the adjustment should be added or subtracted.
8182         (vect_update_init_of_drs): Likewise.
8183         (vect_prepare_for_masked_peels): New function.
8184         (vect_do_peeling): Skip prologue peeling if we're using a mask
8185         instead.  Update call to vect_update_inits_of_drs.
8186         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
8187         mask_skip_niters.
8188         (vect_analyze_loop_2): Allow fully-masked loops with peeling for
8189         alignment.  Do not include the number of peeled iterations in
8190         the minimum threshold in that case.
8191         (vectorizable_induction): Adjust the start value down by
8192         LOOP_VINFO_MASK_SKIP_NITERS iterations.
8193         (vect_transform_loop): Call vect_prepare_for_masked_peels.
8194         Take the number of skipped iterations into account when calculating
8195         the loop bounds.
8196         * tree-vect-stmts.c (vect_gen_while_not): New function.
8197
8198 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8199             Alan Hayward  <alan.hayward@arm.com>
8200             David Sherwood  <david.sherwood@arm.com>
8201
8202         * doc/sourcebuild.texi (vect_fully_masked): Document.
8203         * params.def (PARAM_MIN_VECT_LOOP_BOUND): Change minimum and
8204         default value to 0.
8205         * tree-vect-loop.c (vect_analyze_loop_costing): New function,
8206         split out from...
8207         (vect_analyze_loop_2): ...here. Don't check the vectorization
8208         factor against the number of loop iterations if the loop is
8209         fully-masked.
8210
8211 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8212             Alan Hayward  <alan.hayward@arm.com>
8213             David Sherwood  <david.sherwood@arm.com>
8214
8215         * tree-ssa-loop-ivopts.c (USE_ADDRESS): Split into...
8216         (USE_REF_ADDRESS, USE_PTR_ADDRESS): ...these new use types.
8217         (dump_groups): Update accordingly.
8218         (iv_use::mem_type): New member variable.
8219         (address_p): New function.
8220         (record_use): Add a mem_type argument and initialize the new
8221         mem_type field.
8222         (record_group_use): Add a mem_type argument.  Use address_p.
8223         Remove obsolete null checks of base_object.  Update call to record_use.
8224         (find_interesting_uses_op): Update call to record_group_use.
8225         (find_interesting_uses_cond): Likewise.
8226         (find_interesting_uses_address): Likewise.
8227         (get_mem_type_for_internal_fn): New function.
8228         (find_address_like_use): Likewise.
8229         (find_interesting_uses_stmt): Try find_address_like_use before
8230         calling find_interesting_uses_op.
8231         (addr_offset_valid_p): Use the iv mem_type field as the type
8232         of the addressed memory.
8233         (add_autoinc_candidates): Likewise.
8234         (get_address_cost): Likewise.
8235         (split_small_address_groups_p): Use address_p.
8236         (split_address_groups): Likewise.
8237         (add_iv_candidate_for_use): Likewise.
8238         (autoinc_possible_for_pair): Likewise.
8239         (rewrite_groups): Likewise.
8240         (get_use_type): Check for USE_REF_ADDRESS instead of USE_ADDRESS.
8241         (determine_group_iv_cost): Update after split of USE_ADDRESS.
8242         (get_alias_ptr_type_for_ptr_address): New function.
8243         (rewrite_use_address): Rewrite address uses in calls that were
8244         identified by find_address_like_use.
8245
8246 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8247             Alan Hayward  <alan.hayward@arm.com>
8248             David Sherwood  <david.sherwood@arm.com>
8249
8250         * expr.c (expand_expr_addr_expr_1): Handle ADDR_EXPRs of
8251         TARGET_MEM_REFs.
8252         * gimple-expr.h (is_gimple_addressable: Likewise.
8253         * gimple-expr.c (is_gimple_address): Likewise.
8254         * internal-fn.c (expand_call_mem_ref): New function.
8255         (expand_mask_load_optab_fn): Use it.
8256         (expand_mask_store_optab_fn): Likewise.
8257
8258 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8259             Alan Hayward  <alan.hayward@arm.com>
8260             David Sherwood  <david.sherwood@arm.com>
8261
8262         * doc/md.texi (cond_add@var{mode}, cond_sub@var{mode})
8263         (cond_and@var{mode}, cond_ior@var{mode}, cond_xor@var{mode})
8264         (cond_smin@var{mode}, cond_smax@var{mode}, cond_umin@var{mode})
8265         (cond_umax@var{mode}): Document.
8266         * optabs.def (cond_add_optab, cond_sub_optab, cond_and_optab)
8267         (cond_ior_optab, cond_xor_optab, cond_smin_optab, cond_smax_optab)
8268         (cond_umin_optab, cond_umax_optab): New optabs.
8269         * internal-fn.def (COND_ADD, COND_SUB, COND_MIN, COND_MAX, COND_AND)
8270         (COND_IOR, COND_XOR): New internal functions.
8271         * internal-fn.h (get_conditional_internal_fn): Declare.
8272         * internal-fn.c (cond_binary_direct): New macro.
8273         (expand_cond_binary_optab_fn): Likewise.
8274         (direct_cond_binary_optab_supported_p): Likewise.
8275         (get_conditional_internal_fn): New function.
8276         * tree-vect-loop.c (vectorizable_reduction): Handle fully-masked loops.
8277         Cope with reduction statements that are vectorized as calls rather
8278         than assignments.
8279         * config/aarch64/aarch64-sve.md (cond_<optab><mode>): New insns.
8280         * config/aarch64/iterators.md (UNSPEC_COND_ADD, UNSPEC_COND_SUB)
8281         (UNSPEC_COND_SMAX, UNSPEC_COND_UMAX, UNSPEC_COND_SMIN)
8282         (UNSPEC_COND_UMIN, UNSPEC_COND_AND, UNSPEC_COND_ORR)
8283         (UNSPEC_COND_EOR): New unspecs.
8284         (optab): Add mappings for them.
8285         (SVE_COND_INT_OP, SVE_COND_FP_OP): New int iterators.
8286         (sve_int_op, sve_fp_op): New int attributes.
8287
8288 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8289             Alan Hayward  <alan.hayward@arm.com>
8290             David Sherwood  <david.sherwood@arm.com>
8291
8292         * optabs.def (while_ult_optab): New optab.
8293         * doc/md.texi (while_ult@var{m}@var{n}): Document.
8294         * internal-fn.def (WHILE_ULT): New internal function.
8295         * internal-fn.h (direct_internal_fn_supported_p): New override
8296         that takes two types as argument.
8297         * internal-fn.c (while_direct): New macro.
8298         (expand_while_optab_fn): New function.
8299         (convert_optab_supported_p): Likewise.
8300         (direct_while_optab_supported_p): New macro.
8301         * wide-int.h (wi::udiv_ceil): New function.
8302         * tree-vectorizer.h (rgroup_masks): New structure.
8303         (vec_loop_masks): New typedef.
8304         (_loop_vec_info): Add masks, mask_compare_type, can_fully_mask_p
8305         and fully_masked_p.
8306         (LOOP_VINFO_CAN_FULLY_MASK_P, LOOP_VINFO_FULLY_MASKED_P)
8307         (LOOP_VINFO_MASKS, LOOP_VINFO_MASK_COMPARE_TYPE): New macros.
8308         (vect_max_vf): New function.
8309         (slpeel_make_loop_iterate_ntimes): Delete.
8310         (vect_set_loop_condition, vect_get_loop_mask_type, vect_gen_while)
8311         (vect_halve_mask_nunits, vect_double_mask_nunits): Declare.
8312         (vect_record_loop_mask, vect_get_loop_mask): Likewise.
8313         * tree-vect-loop-manip.c: Include tree-ssa-loop-niter.h,
8314         internal-fn.h, stor-layout.h and optabs-query.h.
8315         (vect_set_loop_mask): New function.
8316         (add_preheader_seq): Likewise.
8317         (add_header_seq): Likewise.
8318         (interleave_supported_p): Likewise.
8319         (vect_maybe_permute_loop_masks): Likewise.
8320         (vect_set_loop_masks_directly): Likewise.
8321         (vect_set_loop_condition_masked): Likewise.
8322         (vect_set_loop_condition_unmasked): New function, split out from
8323         slpeel_make_loop_iterate_ntimes.
8324         (slpeel_make_loop_iterate_ntimes): Rename to..
8325         (vect_set_loop_condition): ...this.  Use vect_set_loop_condition_masked
8326         for fully-masked loops and vect_set_loop_condition_unmasked otherwise.
8327         (vect_do_peeling): Update call accordingly.
8328         (vect_gen_vector_loop_niters): Use VF as the step for fully-masked
8329         loops.
8330         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
8331         mask_compare_type, can_fully_mask_p and fully_masked_p.
8332         (release_vec_loop_masks): New function.
8333         (_loop_vec_info): Use it to free the loop masks.
8334         (can_produce_all_loop_masks_p): New function.
8335         (vect_get_max_nscalars_per_iter): Likewise.
8336         (vect_verify_full_masking): Likewise.
8337         (vect_analyze_loop_2): Save LOOP_VINFO_CAN_FULLY_MASK_P around
8338         retries, and free the mask rgroups before retrying.  Check loop-wide
8339         reasons for disallowing fully-masked loops.  Make the final decision
8340         about whether use a fully-masked loop or not.
8341         (vect_estimate_min_profitable_iters): Do not assume that peeling
8342         for the number of iterations will be needed for fully-masked loops.
8343         (vectorizable_reduction): Disable fully-masked loops.
8344         (vectorizable_live_operation): Likewise.
8345         (vect_halve_mask_nunits): New function.
8346         (vect_double_mask_nunits): Likewise.
8347         (vect_record_loop_mask): Likewise.
8348         (vect_get_loop_mask): Likewise.
8349         (vect_transform_loop): Handle the case in which the final loop
8350         iteration might handle a partial vector.  Call vect_set_loop_condition
8351         instead of slpeel_make_loop_iterate_ntimes.
8352         * tree-vect-stmts.c: Include tree-ssa-loop-niter.h and gimple-fold.h.
8353         (check_load_store_masking): New function.
8354         (prepare_load_store_mask): Likewise.
8355         (vectorizable_store): Handle fully-masked loops.
8356         (vectorizable_load): Likewise.
8357         (supportable_widening_operation): Use vect_halve_mask_nunits for
8358         booleans.
8359         (supportable_narrowing_operation): Likewise vect_double_mask_nunits.
8360         (vect_gen_while): New function.
8361         * config/aarch64/aarch64.md (umax<mode>3): New expander.
8362         (aarch64_uqdec<mode>): New insn.
8363
8364 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8365             Alan Hayward  <alan.hayward@arm.com>
8366             David Sherwood  <david.sherwood@arm.com>
8367
8368         * optabs.def (reduc_and_scal_optab, reduc_ior_scal_optab)
8369         (reduc_xor_scal_optab): New optabs.
8370         * doc/md.texi (reduc_and_scal_@var{m}, reduc_ior_scal_@var{m})
8371         (reduc_xor_scal_@var{m}): Document.
8372         * doc/sourcebuild.texi (vect_logical_reduc): Likewise.
8373         * internal-fn.def (IFN_REDUC_AND, IFN_REDUC_IOR, IFN_REDUC_XOR): New
8374         internal functions.
8375         * fold-const-call.c (fold_const_call): Handle them.
8376         * tree-vect-loop.c (reduction_fn_for_scalar_code): Return the new
8377         internal functions for BIT_AND_EXPR, BIT_IOR_EXPR and BIT_XOR_EXPR.
8378         * config/aarch64/aarch64-sve.md (reduc_<bit_reduc>_scal_<mode>):
8379         (*reduc_<bit_reduc>_scal_<mode>): New patterns.
8380         * config/aarch64/iterators.md (UNSPEC_ANDV, UNSPEC_ORV)
8381         (UNSPEC_XORV): New unspecs.
8382         (optab): Add entries for them.
8383         (BITWISEV): New int iterator.
8384         (bit_reduc_op): New int attributes.
8385
8386 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8387             Alan Hayward  <alan.hayward@arm.com>
8388             David Sherwood  <david.sherwood@arm.com>
8389
8390         * doc/md.texi (vec_shl_insert_@var{m}): New optab.
8391         * internal-fn.def (VEC_SHL_INSERT): New internal function.
8392         * optabs.def (vec_shl_insert_optab): New optab.
8393         * tree-vectorizer.h (can_duplicate_and_interleave_p): Declare.
8394         (duplicate_and_interleave): Likewise.
8395         * tree-vect-loop.c: Include internal-fn.h.
8396         (neutral_op_for_slp_reduction): New function, split out from
8397         get_initial_defs_for_reduction.
8398         (get_initial_def_for_reduction): Handle option 2 for variable-length
8399         vectors by loading the neutral value into a vector and then shifting
8400         the initial value into element 0.
8401         (get_initial_defs_for_reduction): Replace the code argument with
8402         the neutral value calculated by neutral_op_for_slp_reduction.
8403         Use gimple_build_vector for constant-length vectors.
8404         Use IFN_VEC_SHL_INSERT for variable-length vectors if all
8405         but the first group_size elements have a neutral value.
8406         Use duplicate_and_interleave otherwise.
8407         (vect_create_epilog_for_reduction): Take a neutral_op parameter.
8408         Update call to get_initial_defs_for_reduction.  Handle SLP
8409         reductions for variable-length vectors by creating one vector
8410         result for each scalar result, with the elements associated
8411         with other scalar results stubbed out with the neutral value.
8412         (vectorizable_reduction): Call neutral_op_for_slp_reduction.
8413         Require IFN_VEC_SHL_INSERT for double reductions on
8414         variable-length vectors, or SLP reductions that have
8415         a neutral value.  Require can_duplicate_and_interleave_p
8416         support for variable-length unchained SLP reductions if there
8417         is no neutral value, such as for MIN/MAX reductions.  Also require
8418         the number of vector elements to be a multiple of the number of
8419         SLP statements when doing variable-length unchained SLP reductions.
8420         Update call to vect_create_epilog_for_reduction.
8421         * tree-vect-slp.c (can_duplicate_and_interleave_p): Make public
8422         and remove initial values.
8423         (duplicate_and_interleave): Make public.
8424         * config/aarch64/aarch64.md (UNSPEC_INSR): New unspec.
8425         * config/aarch64/aarch64-sve.md (vec_shl_insert_<mode>): New insn.
8426
8427 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8428             Alan Hayward  <alan.hayward@arm.com>
8429             David Sherwood  <david.sherwood@arm.com>
8430
8431         * tree-vect-slp.c: Include gimple-fold.h and internal-fn.h
8432         (can_duplicate_and_interleave_p): New function.
8433         (vect_get_and_check_slp_defs): Take the vector of statements
8434         rather than just the current one.  Remove excess parentheses.
8435         Restriction rejectinon of vect_constant_def and vect_external_def
8436         for variable-length vectors to boolean types, or types for which
8437         can_duplicate_and_interleave_p is false.
8438         (vect_build_slp_tree_2): Update call to vect_get_and_check_slp_defs.
8439         (duplicate_and_interleave): New function.
8440         (vect_get_constant_vectors): Use gimple_build_vector for
8441         constant-length vectors and suitable variable-length constant
8442         vectors.  Use duplicate_and_interleave for other variable-length
8443         vectors.  Don't defer the update when inserting new statements.
8444
8445 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8446             Alan Hayward  <alan.hayward@arm.com>
8447             David Sherwood  <david.sherwood@arm.com>
8448
8449         * tree-vect-loop.c (vect_estimate_min_profitable_iters): Make sure
8450         min_profitable_iters doesn't go negative.
8451
8452 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8453             Alan Hayward  <alan.hayward@arm.com>
8454             David Sherwood  <david.sherwood@arm.com>
8455
8456         * doc/md.texi (vec_mask_load_lanes@var{m}@var{n}): Document.
8457         (vec_mask_store_lanes@var{m}@var{n}): Likewise.
8458         * optabs.def (vec_mask_load_lanes_optab): New optab.
8459         (vec_mask_store_lanes_optab): Likewise.
8460         * internal-fn.def (MASK_LOAD_LANES): New internal function.
8461         (MASK_STORE_LANES): Likewise.
8462         * internal-fn.c (mask_load_lanes_direct): New macro.
8463         (mask_store_lanes_direct): Likewise.
8464         (expand_mask_load_optab_fn): Handle masked operations.
8465         (expand_mask_load_lanes_optab_fn): New macro.
8466         (expand_mask_store_optab_fn): Handle masked operations.
8467         (expand_mask_store_lanes_optab_fn): New macro.
8468         (direct_mask_load_lanes_optab_supported_p): Likewise.
8469         (direct_mask_store_lanes_optab_supported_p): Likewise.
8470         * tree-vectorizer.h (vect_store_lanes_supported): Take a masked_p
8471         parameter.
8472         (vect_load_lanes_supported): Likewise.
8473         * tree-vect-data-refs.c (strip_conversion): New function.
8474         (can_group_stmts_p): Likewise.
8475         (vect_analyze_data_ref_accesses): Use it instead of checking
8476         for a pair of assignments.
8477         (vect_store_lanes_supported): Take a masked_p parameter.
8478         (vect_load_lanes_supported): Likewise.
8479         * tree-vect-loop.c (vect_analyze_loop_2): Update calls to
8480         vect_store_lanes_supported and vect_load_lanes_supported.
8481         * tree-vect-slp.c (vect_analyze_slp_instance): Likewise.
8482         * tree-vect-stmts.c (get_group_load_store_type): Take a masked_p
8483         parameter.  Don't allow gaps for masked accesses.
8484         Use vect_get_store_rhs.  Update calls to vect_store_lanes_supported
8485         and vect_load_lanes_supported.
8486         (get_load_store_type): Take a masked_p parameter and update
8487         call to get_group_load_store_type.
8488         (vectorizable_store): Update call to get_load_store_type.
8489         Handle IFN_MASK_STORE_LANES.
8490         (vectorizable_load): Update call to get_load_store_type.
8491         Handle IFN_MASK_LOAD_LANES.
8492
8493 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8494             Alan Hayward  <alan.hayward@arm.com>
8495             David Sherwood  <david.sherwood@arm.com>
8496
8497         * config/aarch64/aarch64-modes.def: Define x2, x3 and x4 vector
8498         modes for SVE.
8499         * config/aarch64/aarch64-protos.h
8500         (aarch64_sve_struct_memory_operand_p): Declare.
8501         * config/aarch64/iterators.md (SVE_STRUCT): New mode iterator.
8502         (vector_count, insn_length, VSINGLE, vsingle): New mode attributes.
8503         (VPRED, vpred): Handle SVE structure modes.
8504         * config/aarch64/constraints.md (Utx): New constraint.
8505         * config/aarch64/predicates.md (aarch64_sve_struct_memory_operand)
8506         (aarch64_sve_struct_nonimmediate_operand): New predicates.
8507         * config/aarch64/aarch64.md (UNSPEC_LDN, UNSPEC_STN): New unspecs.
8508         * config/aarch64/aarch64-sve.md (mov<mode>, *aarch64_sve_mov<mode>_le)
8509         (*aarch64_sve_mov<mode>_be, pred_mov<mode>): New patterns for
8510         structure modes.  Split into pieces after RA.
8511         (vec_load_lanes<mode><vsingle>, vec_mask_load_lanes<mode><vsingle>)
8512         (vec_store_lanes<mode><vsingle>, vec_mask_store_lanes<mode><vsingle>):
8513         New patterns.
8514         * config/aarch64/aarch64.c (aarch64_classify_vector_mode): Handle
8515         SVE structure modes.
8516         (aarch64_classify_address): Likewise.
8517         (sizetochar): Move earlier in file.
8518         (aarch64_print_operand): Handle SVE register lists.
8519         (aarch64_array_mode): New function.
8520         (aarch64_sve_struct_memory_operand_p): Likewise.
8521         (TARGET_ARRAY_MODE): Redefine.
8522
8523 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8524             Alan Hayward  <alan.hayward@arm.com>
8525             David Sherwood  <david.sherwood@arm.com>
8526
8527         * target.def (array_mode): New target hook.
8528         * doc/tm.texi.in (TARGET_ARRAY_MODE): New hook.
8529         * doc/tm.texi: Regenerate.
8530         * hooks.h (hook_optmode_mode_uhwi_none): Declare.
8531         * hooks.c (hook_optmode_mode_uhwi_none): New function.
8532         * tree-vect-data-refs.c (vect_lanes_optab_supported_p): Use
8533         targetm.array_mode.
8534         * stor-layout.c (mode_for_array): Likewise.  Support polynomial
8535         type sizes.
8536
8537 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8538             Alan Hayward  <alan.hayward@arm.com>
8539             David Sherwood  <david.sherwood@arm.com>
8540
8541         * fold-const.c (fold_binary_loc): Check the argument types
8542         rather than the result type when testing for a vector operation.
8543
8544 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8545
8546         * doc/tm.texi.in (DWARF_LAZY_REGISTER_VALUE): Document.
8547         * doc/tm.texi: Regenerate.
8548
8549 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8550             Alan Hayward  <alan.hayward@arm.com>
8551             David Sherwood  <david.sherwood@arm.com>
8552
8553         * doc/invoke.texi (-msve-vector-bits=): Document new option.
8554         (sve): Document new AArch64 extension.
8555         * doc/md.texi (w): Extend the description of the AArch64
8556         constraint to include SVE vectors.
8557         (Upl, Upa): Document new AArch64 predicate constraints.
8558         * config/aarch64/aarch64-opts.h (aarch64_sve_vector_bits_enum): New
8559         enum.
8560         * config/aarch64/aarch64.opt (sve_vector_bits): New enum.
8561         (msve-vector-bits=): New option.
8562         * config/aarch64/aarch64-option-extensions.def (fp, simd): Disable
8563         SVE when these are disabled.
8564         (sve): New extension.
8565         * config/aarch64/aarch64-modes.def: Define SVE vector and predicate
8566         modes.  Adjust their number of units based on aarch64_sve_vg.
8567         (MAX_BITSIZE_MODE_ANY_MODE): Define.
8568         * config/aarch64/aarch64-protos.h (ADDR_QUERY_ANY): New
8569         aarch64_addr_query_type.
8570         (aarch64_const_vec_all_same_in_range_p, aarch64_sve_pred_mode)
8571         (aarch64_sve_cnt_immediate_p, aarch64_sve_addvl_addpl_immediate_p)
8572         (aarch64_sve_inc_dec_immediate_p, aarch64_add_offset_temporaries)
8573         (aarch64_split_add_offset, aarch64_output_sve_cnt_immediate)
8574         (aarch64_output_sve_addvl_addpl, aarch64_output_sve_inc_dec_immediate)
8575         (aarch64_output_sve_mov_immediate, aarch64_output_ptrue): Declare.
8576         (aarch64_simd_imm_zero_p): Delete.
8577         (aarch64_check_zero_based_sve_index_immediate): Declare.
8578         (aarch64_sve_index_immediate_p, aarch64_sve_arith_immediate_p)
8579         (aarch64_sve_bitmask_immediate_p, aarch64_sve_dup_immediate_p)
8580         (aarch64_sve_cmp_immediate_p, aarch64_sve_float_arith_immediate_p)
8581         (aarch64_sve_float_mul_immediate_p): Likewise.
8582         (aarch64_classify_symbol): Take the offset as a HOST_WIDE_INT
8583         rather than an rtx.
8584         (aarch64_sve_ld1r_operand_p, aarch64_sve_ldr_operand_p): Declare.
8585         (aarch64_expand_mov_immediate): Take a gen_vec_duplicate callback.
8586         (aarch64_emit_sve_pred_move, aarch64_expand_sve_mem_move): Declare.
8587         (aarch64_expand_sve_vec_cmp_int, aarch64_expand_sve_vec_cmp_float)
8588         (aarch64_expand_sve_vcond, aarch64_expand_sve_vec_perm): Declare.
8589         (aarch64_regmode_natural_size): Likewise.
8590         * config/aarch64/aarch64.h (AARCH64_FL_SVE): New macro.
8591         (AARCH64_FL_V8_3, AARCH64_FL_RCPC, AARCH64_FL_DOTPROD): Shift
8592         left one place.
8593         (AARCH64_ISA_SVE, TARGET_SVE): New macros.
8594         (FIXED_REGISTERS, CALL_USED_REGISTERS, REGISTER_NAMES): Add entries
8595         for VG and the SVE predicate registers.
8596         (V_ALIASES): Add a "z"-prefixed alias.
8597         (FIRST_PSEUDO_REGISTER): Change to P15_REGNUM + 1.
8598         (AARCH64_DWARF_VG, AARCH64_DWARF_P0): New macros.
8599         (PR_REGNUM_P, PR_LO_REGNUM_P): Likewise.
8600         (PR_LO_REGS, PR_HI_REGS, PR_REGS): New reg_classes.
8601         (REG_CLASS_NAMES): Add entries for them.
8602         (REG_CLASS_CONTENTS): Likewise.  Update ALL_REGS to include VG
8603         and the predicate registers.
8604         (aarch64_sve_vg): Declare.
8605         (BITS_PER_SVE_VECTOR, BYTES_PER_SVE_VECTOR, BYTES_PER_SVE_PRED)
8606         (SVE_BYTE_MODE, MAX_COMPILE_TIME_VEC_BYTES): New macros.
8607         (REGMODE_NATURAL_SIZE): Define.
8608         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Handle
8609         SVE macros.
8610         * config/aarch64/aarch64.c: Include cfgrtl.h.
8611         (simd_immediate_info): Add a constructor for series vectors,
8612         and an associated step field.
8613         (aarch64_sve_vg): New variable.
8614         (aarch64_dbx_register_number): Handle VG and the predicate registers.
8615         (aarch64_vect_struct_mode_p, aarch64_vector_mode_p): Delete.
8616         (VEC_ADVSIMD, VEC_SVE_DATA, VEC_SVE_PRED, VEC_STRUCT, VEC_ANY_SVE)
8617         (VEC_ANY_DATA, VEC_STRUCT): New constants.
8618         (aarch64_advsimd_struct_mode_p, aarch64_sve_pred_mode_p)
8619         (aarch64_classify_vector_mode, aarch64_vector_data_mode_p)
8620         (aarch64_sve_data_mode_p, aarch64_sve_pred_mode)
8621         (aarch64_get_mask_mode): New functions.
8622         (aarch64_hard_regno_nregs): Handle SVE data modes for FP_REGS
8623         and FP_LO_REGS.  Handle PR_REGS, PR_LO_REGS and PR_HI_REGS.
8624         (aarch64_hard_regno_mode_ok): Handle VG.  Also handle the SVE
8625         predicate modes and predicate registers.  Explicitly restrict
8626         GPRs to modes of 16 bytes or smaller.  Only allow FP registers
8627         to store a vector mode if it is recognized by
8628         aarch64_classify_vector_mode.
8629         (aarch64_regmode_natural_size): New function.
8630         (aarch64_hard_regno_caller_save_mode): Return the original mode
8631         for predicates.
8632         (aarch64_sve_cnt_immediate_p, aarch64_output_sve_cnt_immediate)
8633         (aarch64_sve_addvl_addpl_immediate_p, aarch64_output_sve_addvl_addpl)
8634         (aarch64_sve_inc_dec_immediate_p, aarch64_output_sve_inc_dec_immediate)
8635         (aarch64_add_offset_1_temporaries, aarch64_offset_temporaries): New
8636         functions.
8637         (aarch64_add_offset): Add a temp2 parameter.  Assert that temp1
8638         does not overlap dest if the function is frame-related.  Handle
8639         SVE constants.
8640         (aarch64_split_add_offset): New function.
8641         (aarch64_add_sp, aarch64_sub_sp): Add temp2 parameters and pass
8642         them aarch64_add_offset.
8643         (aarch64_allocate_and_probe_stack_space): Add a temp2 parameter
8644         and update call to aarch64_sub_sp.
8645         (aarch64_add_cfa_expression): New function.
8646         (aarch64_expand_prologue): Pass extra temporary registers to the
8647         functions above.  Handle the case in which we need to emit new
8648         DW_CFA_expressions for registers that were originally saved
8649         relative to the stack pointer, but now have to be expressed
8650         relative to the frame pointer.
8651         (aarch64_output_mi_thunk): Pass extra temporary registers to the
8652         functions above.
8653         (aarch64_expand_epilogue): Likewise.  Prevent inheritance of
8654         IP0 and IP1 values for SVE frames.
8655         (aarch64_expand_vec_series): New function.
8656         (aarch64_expand_sve_widened_duplicate): Likewise.
8657         (aarch64_expand_sve_const_vector): Likewise.
8658         (aarch64_expand_mov_immediate): Add a gen_vec_duplicate parameter.
8659         Handle SVE constants.  Use emit_move_insn to move a force_const_mem
8660         into the register, rather than emitting a SET directly.
8661         (aarch64_emit_sve_pred_move, aarch64_expand_sve_mem_move)
8662         (aarch64_get_reg_raw_mode, offset_4bit_signed_scaled_p)
8663         (offset_6bit_unsigned_scaled_p, aarch64_offset_7bit_signed_scaled_p)
8664         (offset_9bit_signed_scaled_p): New functions.
8665         (aarch64_replicate_bitmask_imm): New function.
8666         (aarch64_bitmask_imm): Use it.
8667         (aarch64_cannot_force_const_mem): Reject expressions involving
8668         a CONST_POLY_INT.  Update call to aarch64_classify_symbol.
8669         (aarch64_classify_index): Handle SVE indices, by requiring
8670         a plain register index with a scale that matches the element size.
8671         (aarch64_classify_address): Handle SVE addresses.  Assert that
8672         the mode of the address is VOIDmode or an integer mode.
8673         Update call to aarch64_classify_symbol.
8674         (aarch64_classify_symbolic_expression): Update call to
8675         aarch64_classify_symbol.
8676         (aarch64_const_vec_all_in_range_p): New function.
8677         (aarch64_print_vector_float_operand): Likewise.
8678         (aarch64_print_operand): Handle 'N' and 'C'.  Use "zN" rather than
8679         "vN" for FP registers with SVE modes.  Handle (const ...) vectors
8680         and the FP immediates 1.0 and 0.5.
8681         (aarch64_print_address_internal): Handle SVE addresses.
8682         (aarch64_print_operand_address): Use ADDR_QUERY_ANY.
8683         (aarch64_regno_regclass): Handle predicate registers.
8684         (aarch64_secondary_reload): Handle big-endian reloads of SVE
8685         data modes.
8686         (aarch64_class_max_nregs): Handle SVE modes and predicate registers.
8687         (aarch64_rtx_costs): Check for ADDVL and ADDPL instructions.
8688         (aarch64_convert_sve_vector_bits): New function.
8689         (aarch64_override_options): Use it to handle -msve-vector-bits=.
8690         (aarch64_classify_symbol): Take the offset as a HOST_WIDE_INT
8691         rather than an rtx.
8692         (aarch64_legitimate_constant_p): Use aarch64_classify_vector_mode.
8693         Handle SVE vector and predicate modes.  Accept VL-based constants
8694         that need only one temporary register, and VL offsets that require
8695         no temporary registers.
8696         (aarch64_conditional_register_usage): Mark the predicate registers
8697         as fixed if SVE isn't available.
8698         (aarch64_vector_mode_supported_p): Use aarch64_classify_vector_mode.
8699         Return true for SVE vector and predicate modes.
8700         (aarch64_simd_container_mode): Take the number of bits as a poly_int64
8701         rather than an unsigned int.  Handle SVE modes.
8702         (aarch64_preferred_simd_mode): Update call accordingly.  Handle
8703         SVE modes.
8704         (aarch64_autovectorize_vector_sizes): Add BYTES_PER_SVE_VECTOR
8705         if SVE is enabled.
8706         (aarch64_sve_index_immediate_p, aarch64_sve_arith_immediate_p)
8707         (aarch64_sve_bitmask_immediate_p, aarch64_sve_dup_immediate_p)
8708         (aarch64_sve_cmp_immediate_p, aarch64_sve_float_arith_immediate_p)
8709         (aarch64_sve_float_mul_immediate_p): New functions.
8710         (aarch64_sve_valid_immediate): New function.
8711         (aarch64_simd_valid_immediate): Use it as the fallback for SVE vectors.
8712         Explicitly reject structure modes.  Check for INDEX constants.
8713         Handle PTRUE and PFALSE constants.
8714         (aarch64_check_zero_based_sve_index_immediate): New function.
8715         (aarch64_simd_imm_zero_p): Delete.
8716         (aarch64_mov_operand_p): Use aarch64_simd_valid_immediate for
8717         vector modes.  Accept constants in the range of CNT[BHWD].
8718         (aarch64_simd_scalar_immediate_valid_for_move): Explicitly
8719         ask for an Advanced SIMD mode.
8720         (aarch64_sve_ld1r_operand_p, aarch64_sve_ldr_operand_p): New functions.
8721         (aarch64_simd_vector_alignment): Handle SVE predicates.
8722         (aarch64_vectorize_preferred_vector_alignment): New function.
8723         (aarch64_simd_vector_alignment_reachable): Use it instead of
8724         the vector size.
8725         (aarch64_shift_truncation_mask): Use aarch64_vector_data_mode_p.
8726         (aarch64_output_sve_mov_immediate, aarch64_output_ptrue): New
8727         functions.
8728         (MAX_VECT_LEN): Delete.
8729         (expand_vec_perm_d): Add a vec_flags field.
8730         (emit_unspec2, aarch64_expand_sve_vec_perm): New functions.
8731         (aarch64_evpc_trn, aarch64_evpc_uzp, aarch64_evpc_zip)
8732         (aarch64_evpc_ext): Don't apply a big-endian lane correction
8733         for SVE modes.
8734         (aarch64_evpc_rev): Rename to...
8735         (aarch64_evpc_rev_local): ...this.  Use a predicated operation for SVE.
8736         (aarch64_evpc_rev_global): New function.
8737         (aarch64_evpc_dup): Enforce a 64-byte range for SVE DUP.
8738         (aarch64_evpc_tbl): Use MAX_COMPILE_TIME_VEC_BYTES instead of
8739         MAX_VECT_LEN.
8740         (aarch64_evpc_sve_tbl): New function.
8741         (aarch64_expand_vec_perm_const_1): Update after rename of
8742         aarch64_evpc_rev.  Handle SVE permutes too, trying
8743         aarch64_evpc_rev_global and using aarch64_evpc_sve_tbl rather
8744         than aarch64_evpc_tbl.
8745         (aarch64_vectorize_vec_perm_const): Initialize vec_flags.
8746         (aarch64_sve_cmp_operand_p, aarch64_unspec_cond_code)
8747         (aarch64_gen_unspec_cond, aarch64_expand_sve_vec_cmp_int)
8748         (aarch64_emit_unspec_cond, aarch64_emit_unspec_cond_or)
8749         (aarch64_emit_inverted_unspec_cond, aarch64_expand_sve_vec_cmp_float)
8750         (aarch64_expand_sve_vcond): New functions.
8751         (aarch64_modes_tieable_p): Use aarch64_vector_data_mode_p instead
8752         of aarch64_vector_mode_p.
8753         (aarch64_dwarf_poly_indeterminate_value): New function.
8754         (aarch64_compute_pressure_classes): Likewise.
8755         (aarch64_can_change_mode_class): Likewise.
8756         (TARGET_GET_RAW_RESULT_MODE, TARGET_GET_RAW_ARG_MODE): Redefine.
8757         (TARGET_VECTORIZE_PREFERRED_VECTOR_ALIGNMENT): Likewise.
8758         (TARGET_VECTORIZE_GET_MASK_MODE): Likewise.
8759         (TARGET_DWARF_POLY_INDETERMINATE_VALUE): Likewise.
8760         (TARGET_COMPUTE_PRESSURE_CLASSES): Likewise.
8761         (TARGET_CAN_CHANGE_MODE_CLASS): Likewise.
8762         * config/aarch64/constraints.md (Upa, Upl, Uav, Uat, Usv, Usi, Utr)
8763         (Uty, Dm, vsa, vsc, vsd, vsi, vsn, vsl, vsm, vsA, vsM, vsN): New
8764         constraints.
8765         (Dn, Dl, Dr): Accept const as well as const_vector.
8766         (Dz): Likewise.  Compare against CONST0_RTX.
8767         * config/aarch64/iterators.md: Refer to "Advanced SIMD" instead
8768         of "vector" where appropriate.
8769         (SVE_ALL, SVE_BH, SVE_BHS, SVE_BHSI, SVE_HSDI, SVE_HSF, SVE_SD)
8770         (SVE_SDI, SVE_I, SVE_F, PRED_ALL, PRED_BHS): New mode iterators.
8771         (UNSPEC_SEL, UNSPEC_ANDF, UNSPEC_IORF, UNSPEC_XORF, UNSPEC_COND_LT)
8772         (UNSPEC_COND_LE, UNSPEC_COND_EQ, UNSPEC_COND_NE, UNSPEC_COND_GE)
8773         (UNSPEC_COND_GT, UNSPEC_COND_LO, UNSPEC_COND_LS, UNSPEC_COND_HS)
8774         (UNSPEC_COND_HI, UNSPEC_COND_UO): New unspecs.
8775         (Vetype, VEL, Vel, VWIDE, Vwide, vw, vwcore, V_INT_EQUIV)
8776         (v_int_equiv): Extend to SVE modes.
8777         (Vesize, V128, v128, Vewtype, V_FP_EQUIV, v_fp_equiv, VPRED): New
8778         mode attributes.
8779         (LOGICAL_OR, SVE_INT_UNARY, SVE_FP_UNARY): New code iterators.
8780         (optab): Handle popcount, smin, smax, umin, umax, abs and sqrt.
8781         (logical_nn, lr, sve_int_op, sve_fp_op): New code attributs.
8782         (LOGICALF, OPTAB_PERMUTE, UNPACK, UNPACK_UNSIGNED, SVE_COND_INT_CMP)
8783         (SVE_COND_FP_CMP): New int iterators.
8784         (perm_hilo): Handle the new unpack unspecs.
8785         (optab, logicalf_op, su, perm_optab, cmp_op, imm_con): New int
8786         attributes.
8787         * config/aarch64/predicates.md (aarch64_sve_cnt_immediate)
8788         (aarch64_sve_addvl_addpl_immediate, aarch64_split_add_offset_immediate)
8789         (aarch64_pluslong_or_poly_operand, aarch64_nonmemory_operand)
8790         (aarch64_equality_operator, aarch64_constant_vector_operand)
8791         (aarch64_sve_ld1r_operand, aarch64_sve_ldr_operand): New predicates.
8792         (aarch64_sve_nonimmediate_operand): Likewise.
8793         (aarch64_sve_general_operand): Likewise.
8794         (aarch64_sve_dup_operand, aarch64_sve_arith_immediate): Likewise.
8795         (aarch64_sve_sub_arith_immediate, aarch64_sve_inc_dec_immediate)
8796         (aarch64_sve_logical_immediate, aarch64_sve_mul_immediate): Likewise.
8797         (aarch64_sve_dup_immediate, aarch64_sve_cmp_vsc_immediate): Likewise.
8798         (aarch64_sve_cmp_vsd_immediate, aarch64_sve_index_immediate): Likewise.
8799         (aarch64_sve_float_arith_immediate): Likewise.
8800         (aarch64_sve_float_arith_with_sub_immediate): Likewise.
8801         (aarch64_sve_float_mul_immediate, aarch64_sve_arith_operand): Likewise.
8802         (aarch64_sve_add_operand, aarch64_sve_logical_operand): Likewise.
8803         (aarch64_sve_lshift_operand, aarch64_sve_rshift_operand): Likewise.
8804         (aarch64_sve_mul_operand, aarch64_sve_cmp_vsc_operand): Likewise.
8805         (aarch64_sve_cmp_vsd_operand, aarch64_sve_index_operand): Likewise.
8806         (aarch64_sve_float_arith_operand): Likewise.
8807         (aarch64_sve_float_arith_with_sub_operand): Likewise.
8808         (aarch64_sve_float_mul_operand): Likewise.
8809         (aarch64_sve_vec_perm_operand): Likewise.
8810         (aarch64_pluslong_operand): Include aarch64_sve_addvl_addpl_immediate.
8811         (aarch64_mov_operand): Accept const_poly_int and const_vector.
8812         (aarch64_simd_lshift_imm, aarch64_simd_rshift_imm): Accept const
8813         as well as const_vector.
8814         (aarch64_simd_imm_zero, aarch64_simd_imm_minus_one): Move earlier
8815         in file.  Use CONST0_RTX and CONSTM1_RTX.
8816         (aarch64_simd_or_scalar_imm_zero): Likewise.  Add match_codes.
8817         (aarch64_simd_reg_or_zero): Accept const as well as const_vector.
8818         Use aarch64_simd_imm_zero.
8819         * config/aarch64/aarch64-sve.md: New file.
8820         * config/aarch64/aarch64.md: Include it.
8821         (VG_REGNUM, P0_REGNUM, P7_REGNUM, P15_REGNUM): New register numbers.
8822         (UNSPEC_REV, UNSPEC_LD1_SVE, UNSPEC_ST1_SVE, UNSPEC_MERGE_PTRUE)
8823         (UNSPEC_PTEST_PTRUE, UNSPEC_UNPACKSHI, UNSPEC_UNPACKUHI)
8824         (UNSPEC_UNPACKSLO, UNSPEC_UNPACKULO, UNSPEC_PACK)
8825         (UNSPEC_FLOAT_CONVERT, UNSPEC_WHILE_LO): New unspec constants.
8826         (sve): New attribute.
8827         (enabled): Disable instructions with the sve attribute unless
8828         TARGET_SVE.
8829         (movqi, movhi): Pass CONST_POLY_INT operaneds through
8830         aarch64_expand_mov_immediate.
8831         (*mov<mode>_aarch64, *movsi_aarch64, *movdi_aarch64): Handle
8832         CNT[BHSD] immediates.
8833         (movti): Split CONST_POLY_INT moves into two halves.
8834         (add<mode>3): Accept aarch64_pluslong_or_poly_operand.
8835         Split additions that need a temporary here if the destination
8836         is the stack pointer.
8837         (*add<mode>3_aarch64): Handle ADDVL and ADDPL immediates.
8838         (*add<mode>3_poly_1): New instruction.
8839         (set_clobber_cc): New expander.
8840
8841 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8842
8843         * simplify-rtx.c (simplify_immed_subreg): Add an inner_bytes
8844         parameter and use it instead of GET_MODE_SIZE (innermode).  Use
8845         inner_bytes * BITS_PER_UNIT instead of GET_MODE_BITSIZE (innermode).
8846         Use CEIL (inner_bytes, GET_MODE_UNIT_SIZE (innermode)) instead of
8847         GET_MODE_NUNITS (innermode).  Also add a first_elem parameter.
8848         Change innermode from fixed_mode_size to machine_mode.
8849         (simplify_subreg): Update call accordingly.  Handle a constant-sized
8850         subreg of a variable-length CONST_VECTOR.
8851
8852 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8853             Alan Hayward  <alan.hayward@arm.com>
8854             David Sherwood  <david.sherwood@arm.com>
8855
8856         * tree-ssa-address.c (mem_ref_valid_without_offset_p): New function.
8857         (add_offset_to_base): New function, split out from...
8858         (create_mem_ref): ...here.  When handling a scale other than 1,
8859         check first whether the address is valid without the offset.
8860         Add it into the base if so, leaving the index and scale as-is.
8861
8862 2018-01-12  Jakub Jelinek  <jakub@redhat.com>
8863
8864         PR c++/83778
8865         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Call
8866         fold_for_warn before checking if arg2 is INTEGER_CST.
8867
8868 2018-01-12  Segher Boessenkool  <segher@kernel.crashing.org>
8869
8870         * config/rs6000/predicates.md (load_multiple_operation): Delete.
8871         (store_multiple_operation): Delete.
8872         * config/rs6000/rs6000-cpus.def (601): Remove MASK_STRING.
8873         * config/rs6000/rs6000-protos.h (rs6000_output_load_multiple): Delete.
8874         * config/rs6000/rs6000-string.c (expand_block_move): Delete everything
8875         guarded by TARGET_STRING.
8876         (rs6000_output_load_multiple): Delete.
8877         * config/rs6000/rs6000.c (rs6000_option_override_internal): Delete
8878         OPTION_MASK_STRING / TARGET_STRING handling.
8879         (print_operand) <'N', 'O'>: Add comment that these are unused now.
8880         (const rs6000_opt_masks) <"string">: Change mask to 0.
8881         * config/rs6000/rs6000.h (TARGET_DEFAULT): Remove MASK_STRING.
8882         (MASK_STRING): Delete.
8883         * config/rs6000/rs6000.md (*mov<mode>_string): Delete TARGET_STRING
8884         parts.  Simplify.
8885         (load_multiple): Delete.
8886         (*ldmsi8): Delete.
8887         (*ldmsi7): Delete.
8888         (*ldmsi6): Delete.
8889         (*ldmsi5): Delete.
8890         (*ldmsi4): Delete.
8891         (*ldmsi3): Delete.
8892         (store_multiple): Delete.
8893         (*stmsi8): Delete.
8894         (*stmsi7): Delete.
8895         (*stmsi6): Delete.
8896         (*stmsi5): Delete.
8897         (*stmsi4): Delete.
8898         (*stmsi3): Delete.
8899         (movmemsi_8reg): Delete.
8900         (corresponding unnamed define_insn): Delete.
8901         (movmemsi_6reg): Delete.
8902         (corresponding unnamed define_insn): Delete.
8903         (movmemsi_4reg): Delete.
8904         (corresponding unnamed define_insn): Delete.
8905         (movmemsi_2reg): Delete.
8906         (corresponding unnamed define_insn): Delete.
8907         (movmemsi_1reg): Delete.
8908         (corresponding unnamed define_insn): Delete.
8909         * config/rs6000/rs6000.opt (mno-string): New.
8910         (mstring): Replace by deprecation warning stub.
8911         * doc/invoke.texi (RS/6000 and PowerPC Options): Delete -mstring.
8912
8913 2018-01-12  Jakub Jelinek  <jakub@redhat.com>
8914
8915         * regrename.c (regrename_do_replace): If replacing the same
8916         reg multiple times, try to reuse last created gen_raw_REG.
8917
8918         PR debug/81155
8919         * bb-reorder.c (pass_partition_blocks::gate): In lto don't partition
8920         main to workaround a bug in GDB.
8921
8922 2018-01-12  Tom de Vries  <tom@codesourcery.com>
8923
8924         PR target/83737
8925         * config.gcc (nvptx*-*-*): Set use_gcc_stdint=wrap.
8926
8927 2018-01-12  Vladimir Makarov  <vmakarov@redhat.com>
8928
8929         PR rtl-optimization/80481
8930         * ira-color.c (get_cap_member): New function.
8931         (allocnos_conflict_by_live_ranges_p): Use it.
8932         (slot_coalesced_allocno_live_ranges_intersect_p): Add assert.
8933         (setup_slot_coalesced_allocno_live_ranges): Ditto.
8934
8935 2018-01-12  Uros Bizjak  <ubizjak@gmail.com>
8936
8937         PR target/83628
8938         * config/alpha/alpha.md (*saddsi_1): New insn_ans_split pattern.
8939         (*saddl_se_1): Ditto.
8940         (*ssubsi_1): Ditto.
8941         (*ssubl_se_1): Ditto.
8942
8943 2018-01-12  Richard Sandiford  <richard.sandiford@linaro.org>
8944
8945         * tree-predcom.c (aff_combination_dr_offset): Use wi::to_poly_widest
8946         rather than wi::to_widest for DR_INITs.
8947         * tree-vect-data-refs.c (vect_find_same_alignment_drs): Use
8948         wi::to_poly_offset rather than wi::to_offset for DR_INIT.
8949         (vect_analyze_data_ref_accesses): Require both DR_INITs to be
8950         INTEGER_CSTs.
8951         (vect_analyze_group_access_1): Note that here.
8952
8953 2018-01-12  Richard Sandiford  <richard.sandiford@linaro.org>
8954
8955         * tree-vectorizer.c (get_vec_alignment_for_array_type): Handle
8956         polynomial type sizes.
8957
8958 2018-01-12  Richard Sandiford  <richard.sandiford@linaro.org>
8959
8960         * gimplify.c (gimple_add_tmp_var_fn): Allow variables to have a
8961         poly_uint64 size, rather than requiring an unsigned HOST_WIDE_INT size.
8962         (gimple_add_tmp_var): Likewise.
8963
8964 2018-01-12  Martin Liska  <mliska@suse.cz>
8965
8966         * gimple.c (gimple_alloc_counts): Use uint64_t instead of int.
8967         (gimple_alloc_sizes): Likewise.
8968         (dump_gimple_statistics): Use PRIu64 in printf format.
8969         * gimple.h: Change uint64_t to int.
8970
8971 2018-01-12  Martin Liska  <mliska@suse.cz>
8972
8973         * tree-core.h: Use uint64_t instead of int.
8974         * tree.c (tree_node_counts): Likewise.
8975         (tree_node_sizes): Likewise.
8976         (dump_tree_statistics): Use PRIu64 in printf format.
8977
8978 2018-01-12  Martin Liska  <mliska@suse.cz>
8979
8980         * Makefile.in: As qsort_chk is implemented in vec.c, add
8981         vec.o to linkage of gencfn-macros.
8982         * tree.c (build_new_poly_int_cst): Add CXX_MEM_STAT_INFO as it's
8983         passing the info to record_node_allocation_statistics.
8984         (test_vector_cst_patterns): Add CXX_MEM_STAT_INFO to declaration
8985         and pass the info.
8986         * ggc-common.c (struct ggc_usage): Add operator== and use
8987         it in operator< and compare function.
8988         * mem-stats.h (struct mem_usage): Likewise.
8989         * vec.c (struct vec_usage): Remove operator< and compare
8990         function. Can be simply inherited.
8991
8992 2018-01-12  Martin Jambor  <mjambor@suse.cz>
8993
8994         PR target/81616
8995         * params.def: New parameter PARAM_AVOID_FMA_MAX_BITS.
8996         * tree-ssa-math-opts.c: Include domwalk.h.
8997         (convert_mult_to_fma_1): New function.
8998         (fma_transformation_info): New type.
8999         (fma_deferring_state): Likewise.
9000         (cancel_fma_deferring): New function.
9001         (result_of_phi): Likewise.
9002         (last_fma_candidate_feeds_initial_phi): Likewise.
9003         (convert_mult_to_fma): Added deferring logic, split actual
9004         transformation to convert_mult_to_fma_1.
9005         (math_opts_dom_walker): New type.
9006         (math_opts_dom_walker::after_dom_children): New method, body moved
9007         here from pass_optimize_widening_mul::execute, added deferring logic
9008         bits.
9009         (pass_optimize_widening_mul::execute): Moved most of code to
9010         math_opts_dom_walker::after_dom_children.
9011         * config/i386/x86-tune.def (X86_TUNE_AVOID_128FMA_CHAINS): New.
9012         * config/i386/i386.c (ix86_option_override_internal): Added
9013         maybe_setting of PARAM_AVOID_FMA_MAX_BITS.
9014
9015 2018-01-12  Richard Biener  <rguenther@suse.de>
9016
9017         PR debug/83157
9018         * dwarf2out.c (gen_variable_die): Do not reset old_die for
9019         inline instance vars.
9020
9021 2018-01-12  Oleg Endo  <olegendo@gcc.gnu.org>
9022
9023         PR target/81819
9024         * config/rx/rx.c (rx_is_restricted_memory_address):
9025         Handle SUBREG case.
9026
9027 2018-01-12  Richard Biener  <rguenther@suse.de>
9028
9029         PR tree-optimization/80846
9030         * target.def (split_reduction): New target hook.
9031         * targhooks.c (default_split_reduction): New function.
9032         * targhooks.h (default_split_reduction): Declare.
9033         * tree-vect-loop.c (vect_create_epilog_for_reduction): If the
9034         target requests first reduce vectors by combining low and high
9035         parts.
9036         * tree-vect-stmts.c (vect_gen_perm_mask_any): Adjust.
9037         (get_vectype_for_scalar_type_and_size): Export.
9038         * tree-vectorizer.h (get_vectype_for_scalar_type_and_size): Declare.
9039         * doc/tm.texi.in (TARGET_VECTORIZE_SPLIT_REDUCTION): Document.
9040         * doc/tm.texi: Regenerate.
9041         * config/i386/i386.c (ix86_split_reduction): Implement
9042         TARGET_VECTORIZE_SPLIT_REDUCTION.
9043
9044 2018-01-12  Eric Botcazou  <ebotcazou@adacore.com>
9045
9046         PR target/83368
9047         * config/sparc/sparc.h (PIC_OFFSET_TABLE_REGNUM): Set to INVALID_REGNUM
9048         in PIC mode except for TARGET_VXWORKS_RTP.
9049         * config/sparc/sparc.c: Include cfgrtl.h.
9050         (TARGET_INIT_PIC_REG): Define.
9051         (TARGET_USE_PSEUDO_PIC_REG): Likewise.
9052         (sparc_pic_register_p): New predicate.
9053         (sparc_legitimate_address_p): Use it.
9054         (sparc_legitimize_pic_address): Likewise.
9055         (sparc_delegitimize_address): Likewise.
9056         (sparc_mode_dependent_address_p): Likewise.
9057         (gen_load_pcrel_sym): Remove 4th parameter.
9058         (load_got_register): Adjust call to above.  Remove obsolete stuff.
9059         (sparc_expand_prologue): Do not call load_got_register here.
9060         (sparc_flat_expand_prologue): Likewise.
9061         (sparc_output_mi_thunk): Set the pic_offset_table_rtx object.
9062         (sparc_use_pseudo_pic_reg): New function.
9063         (sparc_init_pic_reg): Likewise.
9064         * config/sparc/sparc.md (vxworks_load_got): Set the GOT register.
9065         (builtin_setjmp_receiver): Enable only for TARGET_VXWORKS_RTP.
9066
9067 2018-01-12  Christophe Lyon  <christophe.lyon@linaro.org>
9068
9069         * doc/sourcebuild.texi (Effective-Target Keywords, Other attributes):
9070         Add item for branch_cost.
9071
9072 2018-01-12  Eric Botcazou  <ebotcazou@adacore.com>
9073
9074         PR rtl-optimization/83565
9075         * rtlanal.c (nonzero_bits1): On WORD_REGISTER_OPERATIONS machines, do
9076         not extend the result to a larger mode for rotate operations.
9077         (num_sign_bit_copies1): Likewise.
9078
9079 2018-01-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
9080
9081         PR target/40411
9082         * config/sol2.h (STARTFILE_ARCH_SPEC): Don't use with -shared or
9083         -symbolic.
9084         Use values-Xc.o for -pedantic.
9085         Link with values-xpg4.o for C90, values-xpg6.o otherwise.
9086
9087 2018-01-12  Martin Liska  <mliska@suse.cz>
9088
9089         PR ipa/83054
9090         * ipa-devirt.c (final_warning_record::grow_type_warnings):
9091         New function.
9092         (possible_polymorphic_call_targets): Use it.
9093         (ipa_devirt): Likewise.
9094
9095 2018-01-12  Martin Liska  <mliska@suse.cz>
9096
9097         * profile-count.h (enum profile_quality): Use 0 as invalid
9098         enum value of profile_quality.
9099
9100 2018-01-12  Chung-Ju Wu  <jasonwucj@gmail.com>
9101
9102         * doc/invoke.texi (NDS32 Options): Add -mext-perf, -mext-perf2 and
9103         -mext-string options.
9104
9105 2018-01-12  Richard Biener  <rguenther@suse.de>
9106
9107         * lto-streamer-out.c (DFS::DFS_write_tree_body): Process
9108         DECL_DEBUG_EXPR conditional on DECL_HAS_DEBUG_EXPR_P.
9109         * tree-streamer-in.c (lto_input_ts_decl_common_tree_pointers):
9110         Likewise.
9111         * tree-streamer-out.c (write_ts_decl_common_tree_pointers): Likewise.
9112
9113 2018-01-11  Michael Meissner  <meissner@linux.vnet.ibm.com>
9114
9115         * configure.ac (--with-long-double-format): Add support for the
9116         configuration option to change the default long double format on
9117         PowerPC systems.
9118         * config.gcc (powerpc*-linux*-*): Likewise.
9119         * configure: Regenerate.
9120         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): If long
9121         double is IEEE, define __KC__ and __KF__ to allow floatn.h to be
9122         used without modification.
9123
9124 2018-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
9125
9126         * config/rs6000/rs6000-builtin.def (BU_P7_MISC_X): New #define.
9127         (SPEC_BARRIER): New instantiation of BU_P7_MISC_X.
9128         * config/rs6000/rs6000.c (rs6000_expand_builtin): Handle
9129         MISC_BUILTIN_SPEC_BARRIER.
9130         (rs6000_init_builtins): Likewise.
9131         * config/rs6000/rs6000.md (UNSPECV_SPEC_BARRIER): New UNSPECV
9132         enum value.
9133         (speculation_barrier): New define_insn.
9134         * doc/extend.texi: Document __builtin_speculation_barrier.
9135
9136 2018-01-11  Jakub Jelinek  <jakub@redhat.com>
9137
9138         PR target/83203
9139         * config/i386/i386.c (ix86_expand_vector_init_one_nonzero): If one_var
9140         is 0, for V{8,16}S[IF] and V[48]D[IF]mode use gen_vec_set<mode>_0.
9141         * config/i386/sse.md (VI8_AVX_AVX512F, VI4F_256_512): New mode
9142         iterators.
9143         (ssescalarmodesuffix): Add 512-bit vectors.  Use "d" or "q" for
9144         integral modes instead of "ss" and "sd".
9145         (vec_set<mode>_0): New define_insns for 256-bit and 512-bit
9146         vectors with 32-bit and 64-bit elements.
9147         (vecdupssescalarmodesuffix): New mode attribute.
9148         (vec_dup<mode>): Use it.
9149
9150 2018-01-11  H.J. Lu  <hongjiu.lu@intel.com>
9151
9152         PR target/83330
9153         * config/i386/i386.c (ix86_compute_frame_layout): Align stack
9154         frame if argument is passed on stack.
9155
9156 2018-01-11  Jakub Jelinek  <jakub@redhat.com>
9157
9158         PR target/82682
9159         * ree.c (combine_reaching_defs): Optimize also
9160         reg2=exp; reg1=reg2; reg2=any_extend(reg1); into
9161         reg2=any_extend(exp); reg1=reg2;, formatting fix.
9162
9163 2018-01-11  Jan Hubicka  <hubicka@ucw.cz>
9164
9165         PR middle-end/83189
9166         * gimple-ssa-isolate-paths.c (isolate_path): Fix profile update.
9167
9168 2018-01-11  Jan Hubicka  <hubicka@ucw.cz>
9169
9170         PR middle-end/83718
9171         * tree-inline.c (copy_cfg_body): Adjust num&den for scaling
9172         after they are computed.
9173
9174 2018-01-11  Bin Cheng  <bin.cheng@arm.com>
9175
9176         PR tree-optimization/83695
9177         * gimple-loop-linterchange.cc
9178         (tree_loop_interchange::interchange_loops): Call scev_reset_htab to
9179         reset cached scev information after interchange.
9180         (pass_linterchange::execute): Remove call to scev_reset_htab.
9181
9182 2018-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
9183
9184         * config/arm/arm_neon.h (vfmlal_lane_low_u32, vfmlal_lane_high_u32,
9185         vfmlalq_laneq_low_u32, vfmlalq_lane_low_u32, vfmlal_laneq_low_u32,
9186         vfmlalq_laneq_high_u32, vfmlalq_lane_high_u32, vfmlal_laneq_high_u32,
9187         vfmlsl_lane_low_u32, vfmlsl_lane_high_u32, vfmlslq_laneq_low_u32,
9188         vfmlslq_lane_low_u32, vfmlsl_laneq_low_u32, vfmlslq_laneq_high_u32,
9189         vfmlslq_lane_high_u32, vfmlsl_laneq_high_u32): Define.
9190         * config/arm/arm_neon_builtins.def (vfmal_lane_low,
9191         vfmal_lane_lowv4hf, vfmal_lane_lowv8hf, vfmal_lane_high,
9192         vfmal_lane_highv4hf, vfmal_lane_highv8hf, vfmsl_lane_low,
9193         vfmsl_lane_lowv4hf, vfmsl_lane_lowv8hf, vfmsl_lane_high,
9194         vfmsl_lane_highv4hf, vfmsl_lane_highv8hf): New sets of builtins.
9195         * config/arm/iterators.md (VFMLSEL2, vfmlsel2): New mode attributes.
9196         (V_lane_reg): Likewise.
9197         * config/arm/neon.md (neon_vfm<vfml_op>l_lane_<vfml_half><VCVTF:mode>):
9198         New define_expand.
9199         (neon_vfm<vfml_op>l_lane_<vfml_half><vfmlsel2><mode>): Likewise.
9200         (vfmal_lane_low<mode>_intrinsic,
9201         vfmal_lane_low<vfmlsel2><mode>_intrinsic,
9202         vfmal_lane_high<vfmlsel2><mode>_intrinsic,
9203         vfmal_lane_high<mode>_intrinsic, vfmsl_lane_low<mode>_intrinsic,
9204         vfmsl_lane_low<vfmlsel2><mode>_intrinsic,
9205         vfmsl_lane_high<vfmlsel2><mode>_intrinsic,
9206         vfmsl_lane_high<mode>_intrinsic): New define_insns.
9207
9208 2018-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
9209
9210         * config/arm/arm-cpus.in (fp16fml): New feature.
9211         (ALL_SIMD): Add fp16fml.
9212         (armv8.2-a): Add fp16fml as an option.
9213         (armv8.3-a): Likewise.
9214         (armv8.4-a): Add fp16fml as part of fp16.
9215         * config/arm/arm.h (TARGET_FP16FML): Define.
9216         * config/arm/arm-c.c (arm_cpu_builtins): Define __ARM_FEATURE_FP16_FML
9217         when appropriate.
9218         * config/arm/arm-modes.def (V2HF): Define.
9219         * config/arm/arm_neon.h (vfmlal_low_u32, vfmlsl_low_u32,
9220         vfmlal_high_u32, vfmlsl_high_u32, vfmlalq_low_u32,
9221         vfmlslq_low_u32, vfmlalq_high_u32, vfmlslq_high_u32): Define.
9222         * config/arm/arm_neon_builtins.def (vfmal_low, vfmal_high,
9223         vfmsl_low, vfmsl_high): New set of builtins.
9224         * config/arm/iterators.md (PLUSMINUS): New code iterator.
9225         (vfml_op): New code attribute.
9226         (VFMLHALVES): New int iterator.
9227         (VFML, VFMLSEL): New mode attributes.
9228         (V_reg): Define mapping for V2HF.
9229         (V_hi, V_lo): New mode attributes.
9230         (VF_constraint): Likewise.
9231         (vfml_half, vfml_half_selector): New int attributes.
9232         * config/arm/neon.md (neon_vfm<vfml_op>l_<vfml_half><mode>): New
9233         define_expand.
9234         (vfmal_low<mode>_intrinsic, vfmsl_high<mode>_intrinsic,
9235         vfmal_high<mode>_intrinsic, vfmsl_low<mode>_intrinsic):
9236         New define_insn.
9237         * config/arm/t-arm-elf (v8_fps): Add fp16fml.
9238         * config/arm/t-multilib (v8_2_a_simd_variants): Add fp16fml.
9239         * config/arm/unspecs.md (UNSPEC_VFML_LO, UNSPEC_VFML_HI): New unspecs.
9240         * doc/invoke.texi (ARM Options): Document fp16fml.  Update armv8.4-a
9241         documentation.
9242         * doc/sourcebuild.texi (arm_fp16fml_neon_ok, arm_fp16fml_neon):
9243         Document new effective target and option set.
9244
9245 2018-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
9246
9247         * config/arm/arm-cpus.in (armv8_4): New feature.
9248         (ARMv8_4a): New fgroup.
9249         (armv8.4-a): New arch.
9250         * config/arm/arm-tables.opt: Regenerate.
9251         * config/arm/t-aprofile: Add matching rules for -march=armv8.4-a.
9252         * config/arm/t-arm-elf (all_v8_archs): Add armv8.4-a.
9253         * config/arm/t-multilib (v8_4_a_simd_variants): New variable.
9254         Add matching rules for -march=armv8.4-a and extensions.
9255         * doc/invoke.texi (ARM Options): Document -march=armv8.4-a.
9256
9257 2018-01-11  Oleg Endo  <olegendo@gcc.gnu.org>
9258
9259         PR target/81821
9260         * config/rx/rx.md (BW): New mode attribute.
9261         (sync_lock_test_and_setsi): Add mode suffix to insn output.
9262
9263 2018-01-11  Richard Biener  <rguenther@suse.de>
9264
9265         PR tree-optimization/83435
9266         * graphite.c (canonicalize_loop_form): Ignore fake loop exit edges.
9267         * graphite-scop-detection.c (scop_detection::get_sese): Likewise.
9268         * tree-vrp.c (add_assert_info): Drop TREE_OVERFLOW if they appear.
9269
9270 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
9271             Alan Hayward  <alan.hayward@arm.com>
9272             David Sherwood  <david.sherwood@arm.com>
9273
9274         * config/aarch64/aarch64.c (aarch64_address_info): Add a const_offset
9275         field.
9276         (aarch64_classify_address): Initialize it.  Track polynomial offsets.
9277         (aarch64_print_address_internal): Use it to check for a zero offset.
9278
9279 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
9280             Alan Hayward  <alan.hayward@arm.com>
9281             David Sherwood  <david.sherwood@arm.com>
9282
9283         * config/aarch64/aarch64-modes.def (NUM_POLY_INT_COEFFS): Set to 2.
9284         * config/aarch64/aarch64-protos.h (aarch64_initial_elimination_offset):
9285         Return a poly_int64 rather than a HOST_WIDE_INT.
9286         (aarch64_offset_7bit_signed_scaled_p): Take the offset as a poly_int64
9287         rather than a HOST_WIDE_INT.
9288         * config/aarch64/aarch64.h (aarch64_frame): Protect with
9289         HAVE_POLY_INT_H rather than HOST_WIDE_INT.  Change locals_offset,
9290         hard_fp_offset, frame_size, initial_adjust, callee_offset and
9291         final_offset from HOST_WIDE_INT to poly_int64.
9292         * config/aarch64/aarch64-builtins.c (aarch64_simd_expand_args): Use
9293         to_constant when getting the number of units in an Advanced SIMD
9294         mode.
9295         (aarch64_builtin_vectorized_function): Check for a constant number
9296         of units.
9297         * config/aarch64/aarch64-simd.md (mov<mode>): Handle polynomial
9298         GET_MODE_SIZE.
9299         (aarch64_ld<VSTRUCT:nregs>_lane<VALLDIF:mode>): Use the nunits
9300         attribute instead of GET_MODE_NUNITS.
9301         * config/aarch64/aarch64.c (aarch64_hard_regno_nregs)
9302         (aarch64_class_max_nregs): Use the constant_lowest_bound of the
9303         GET_MODE_SIZE for fixed-size registers.
9304         (aarch64_const_vec_all_same_in_range_p): Use const_vec_duplicate_p.
9305         (aarch64_hard_regno_call_part_clobbered, aarch64_classify_index)
9306         (aarch64_mode_valid_for_sched_fusion_p, aarch64_classify_address)
9307         (aarch64_legitimize_address_displacement, aarch64_secondary_reload)
9308         (aarch64_print_operand, aarch64_print_address_internal)
9309         (aarch64_address_cost, aarch64_rtx_costs, aarch64_register_move_cost)
9310         (aarch64_short_vector_p, aapcs_vfp_sub_candidate)
9311         (aarch64_simd_attr_length_rglist, aarch64_operands_ok_for_ldpstp):
9312         Handle polynomial GET_MODE_SIZE.
9313         (aarch64_hard_regno_caller_save_mode): Likewise.  Return modes
9314         wider than SImode without modification.
9315         (tls_symbolic_operand_type): Use strip_offset instead of split_const.
9316         (aarch64_pass_by_reference, aarch64_layout_arg, aarch64_pad_reg_upward)
9317         (aarch64_gimplify_va_arg_expr): Assert that we don't yet handle
9318         passing and returning SVE modes.
9319         (aarch64_function_value, aarch64_layout_arg): Use gen_int_mode
9320         rather than GEN_INT.
9321         (aarch64_emit_probe_stack_range): Take the size as a poly_int64
9322         rather than a HOST_WIDE_INT, but call sorry if it isn't constant.
9323         (aarch64_allocate_and_probe_stack_space): Likewise.
9324         (aarch64_layout_frame): Cope with polynomial offsets.
9325         (aarch64_save_callee_saves, aarch64_restore_callee_saves): Take the
9326         start_offset as a poly_int64 rather than a HOST_WIDE_INT.  Track
9327         polynomial offsets.
9328         (offset_9bit_signed_unscaled_p, offset_12bit_unsigned_scaled_p)
9329         (aarch64_offset_7bit_signed_scaled_p): Take the offset as a
9330         poly_int64 rather than a HOST_WIDE_INT.
9331         (aarch64_get_separate_components, aarch64_process_components)
9332         (aarch64_expand_prologue, aarch64_expand_epilogue)
9333         (aarch64_use_return_insn_p): Handle polynomial frame offsets.
9334         (aarch64_anchor_offset): New function, split out from...
9335         (aarch64_legitimize_address): ...here.
9336         (aarch64_builtin_vectorization_cost): Handle polynomial
9337         TYPE_VECTOR_SUBPARTS.
9338         (aarch64_simd_check_vect_par_cnst_half): Handle polynomial
9339         GET_MODE_NUNITS.
9340         (aarch64_simd_make_constant, aarch64_expand_vector_init): Get the
9341         number of elements from the PARALLEL rather than the mode.
9342         (aarch64_shift_truncation_mask): Use GET_MODE_UNIT_BITSIZE
9343         rather than GET_MODE_BITSIZE.
9344         (aarch64_evpc_trn, aarch64_evpc_uzp, aarch64_evpc_ext)
9345         (aarch64_evpc_rev, aarch64_evpc_dup, aarch64_evpc_zip)
9346         (aarch64_expand_vec_perm_const_1): Handle polynomial
9347         d->perm.length () and d->perm elements.
9348         (aarch64_evpc_tbl): Likewise.  Use nelt rather than GET_MODE_NUNITS.
9349         Apply to_constant to d->perm elements.
9350         (aarch64_simd_valid_immediate, aarch64_vec_fpconst_pow_of_2): Handle
9351         polynomial CONST_VECTOR_NUNITS.
9352         (aarch64_move_pointer): Take amount as a poly_int64 rather
9353         than an int.
9354         (aarch64_progress_pointer): Avoid temporary variable.
9355         * config/aarch64/aarch64.md (aarch64_<crc_variant>): Use
9356         the mode attribute instead of GET_MODE.
9357
9358 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
9359             Alan Hayward  <alan.hayward@arm.com>
9360             David Sherwood  <david.sherwood@arm.com>
9361
9362         * config/aarch64/aarch64.c (aarch64_force_temporary): Assert that
9363         x exists before using it.
9364         (aarch64_add_constant_internal): Rename to...
9365         (aarch64_add_offset_1): ...this.  Replace regnum with separate
9366         src and dest rtxes.  Handle the case in which they're different,
9367         including when the offset is zero.  Replace scratchreg with an rtx.
9368         Use 2 additions if there is no spare register into which we can
9369         move a 16-bit constant.
9370         (aarch64_add_constant): Delete.
9371         (aarch64_add_offset): Replace reg with separate src and dest
9372         rtxes.  Take a poly_int64 offset instead of a HOST_WIDE_INT.
9373         Use aarch64_add_offset_1.
9374         (aarch64_add_sp, aarch64_sub_sp): Take the scratch register as
9375         an rtx rather than an int.  Take the delta as a poly_int64
9376         rather than a HOST_WIDE_INT.  Use aarch64_add_offset.
9377         (aarch64_expand_mov_immediate): Update uses of aarch64_add_offset.
9378         (aarch64_expand_prologue): Update calls to aarch64_sub_sp,
9379         aarch64_allocate_and_probe_stack_space and aarch64_add_offset.
9380         (aarch64_expand_epilogue): Update calls to aarch64_add_offset
9381         and aarch64_add_sp.
9382         (aarch64_output_mi_thunk): Use aarch64_add_offset rather than
9383         aarch64_add_constant.
9384
9385 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
9386
9387         * config/aarch64/aarch64.c (aarch64_reinterpret_float_as_int):
9388         Use scalar_float_mode.
9389
9390 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
9391
9392         * config/aarch64/aarch64-simd.md
9393         (aarch64_fml<f16mac1>l<f16quad>_low<mode>): Avoid GET_MODE_NUNITS.
9394         (aarch64_fml<f16mac1>l<f16quad>_high<mode>): Likewise.
9395         (aarch64_fml<f16mac1>l_lane_lowv2sf): Likewise.
9396         (aarch64_fml<f16mac1>l_lane_highv2sf): Likewise.
9397         (aarch64_fml<f16mac1>lq_laneq_lowv4sf): Likewise.
9398         (aarch64_fml<f16mac1>lq_laneq_highv4sf): Likewise.
9399         (aarch64_fml<f16mac1>l_laneq_lowv2sf): Likewise.
9400         (aarch64_fml<f16mac1>l_laneq_highv2sf): Likewise.
9401         (aarch64_fml<f16mac1>lq_lane_lowv4sf): Likewise.
9402         (aarch64_fml<f16mac1>lq_lane_highv4sf): Likewise.
9403
9404 2018-01-11  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
9405
9406         PR target/83514
9407         * config/arm/arm.c (arm_declare_function_name): Set arch_to_print if
9408         targ_options->x_arm_arch_string is non NULL.
9409
9410 2018-01-11  Tamar Christina  <tamar.christina@arm.com>
9411
9412         * config/aarch64/aarch64.h
9413         (AARCH64_FL_FOR_ARCH8_4): Add  AARCH64_FL_DOTPROD.
9414
9415 2018-01-11  Sudakshina Das  <sudi.das@arm.com>
9416
9417         PR target/82096
9418         * expmed.c (emit_store_flag_force): Swap if const op0
9419         and change VOIDmode to mode of op0.
9420
9421 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
9422
9423         PR rtl-optimization/83761
9424         * caller-save.c (replace_reg_with_saved_mem): Pass bits rather
9425         than bytes to mode_for_size.
9426
9427 2018-01-10  Jan Hubicka  <hubicka@ucw.cz>
9428
9429         PR middle-end/83189
9430         * gfortran.fortran-torture/compile/pr83189.f90: New testcase.
9431         * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Handle zero
9432         profile.
9433
9434 2018-01-10  Jan Hubicka  <hubicka@ucw.cz>
9435
9436         PR middle-end/83575
9437         * cfgrtl.c (rtl_verify_edges): Only verify fixability of partition
9438         when in layout mode.
9439         (cfg_layout_finalize): Do not verify cfg before we are out of layout.
9440         * cfgcleanup.c (try_optimize_cfg): Only verify flow info when doing
9441         partition fixup.
9442
9443 2018-01-10  Michael Collison  <michael.collison@arm.com>
9444
9445         * config/aarch64/aarch64-modes.def (V2HF): New VECTOR_MODE.
9446         * config/aarch64/aarch64-option-extension.def: Add
9447         AARCH64_OPT_EXTENSION of 'fp16fml'.
9448         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
9449         (__ARM_FEATURE_FP16_FML): Define if TARGET_F16FML is true.
9450         * config/aarch64/predicates.md (aarch64_lane_imm3): New predicate.
9451         * config/aarch64/constraints.md (Ui7): New constraint.
9452         * config/aarch64/iterators.md (VFMLA_W): New mode iterator.
9453         (VFMLA_SEL_W): Ditto.
9454         (f16quad): Ditto.
9455         (f16mac1): Ditto.
9456         (VFMLA16_LOW): New int iterator.
9457         (VFMLA16_HIGH): Ditto.
9458         (UNSPEC_FMLAL): New unspec.
9459         (UNSPEC_FMLSL): Ditto.
9460         (UNSPEC_FMLAL2): Ditto.
9461         (UNSPEC_FMLSL2): Ditto.
9462         (f16mac): New code attribute.
9463         * config/aarch64/aarch64-simd-builtins.def
9464         (aarch64_fmlal_lowv2sf): Ditto.
9465         (aarch64_fmlsl_lowv2sf): Ditto.
9466         (aarch64_fmlalq_lowv4sf): Ditto.
9467         (aarch64_fmlslq_lowv4sf): Ditto.
9468         (aarch64_fmlal_highv2sf): Ditto.
9469         (aarch64_fmlsl_highv2sf): Ditto.
9470         (aarch64_fmlalq_highv4sf): Ditto.
9471         (aarch64_fmlslq_highv4sf): Ditto.
9472         (aarch64_fmlal_lane_lowv2sf): Ditto.
9473         (aarch64_fmlsl_lane_lowv2sf): Ditto.
9474         (aarch64_fmlal_laneq_lowv2sf): Ditto.
9475         (aarch64_fmlsl_laneq_lowv2sf): Ditto.
9476         (aarch64_fmlalq_lane_lowv4sf): Ditto.
9477         (aarch64_fmlsl_lane_lowv4sf): Ditto.
9478         (aarch64_fmlalq_laneq_lowv4sf): Ditto.
9479         (aarch64_fmlsl_laneq_lowv4sf): Ditto.
9480         (aarch64_fmlal_lane_highv2sf): Ditto.
9481         (aarch64_fmlsl_lane_highv2sf): Ditto.
9482         (aarch64_fmlal_laneq_highv2sf): Ditto.
9483         (aarch64_fmlsl_laneq_highv2sf): Ditto.
9484         (aarch64_fmlalq_lane_highv4sf): Ditto.
9485         (aarch64_fmlsl_lane_highv4sf): Ditto.
9486         (aarch64_fmlalq_laneq_highv4sf): Ditto.
9487         (aarch64_fmlsl_laneq_highv4sf): Ditto.
9488         * config/aarch64/aarch64-simd.md:
9489         (aarch64_fml<f16mac1>l<f16quad>_low<mode>): New pattern.
9490         (aarch64_fml<f16mac1>l<f16quad>_high<mode>): Ditto.
9491         (aarch64_simd_fml<f16mac1>l<f16quad>_low<mode>): Ditto.
9492         (aarch64_simd_fml<f16mac1>l<f16quad>_high<mode>): Ditto.
9493         (aarch64_fml<f16mac1>l_lane_lowv2sf): Ditto.
9494         (aarch64_fml<f16mac1>l_lane_highv2sf): Ditto.
9495         (aarch64_simd_fml<f16mac>l_lane_lowv2sf): Ditto.
9496         (aarch64_simd_fml<f16mac>l_lane_highv2sf): Ditto.
9497         (aarch64_fml<f16mac1>lq_laneq_lowv4sf): Ditto.
9498         (aarch64_fml<f16mac1>lq_laneq_highv4sf): Ditto.
9499         (aarch64_simd_fml<f16mac>lq_laneq_lowv4sf): Ditto.
9500         (aarch64_simd_fml<f16mac>lq_laneq_highv4sf): Ditto.
9501         (aarch64_fml<f16mac1>l_laneq_lowv2sf): Ditto.
9502         (aarch64_fml<f16mac1>l_laneq_highv2sf): Ditto.
9503         (aarch64_simd_fml<f16mac>l_laneq_lowv2sf): Ditto.
9504         (aarch64_simd_fml<f16mac>l_laneq_highv2sf): Ditto.
9505         (aarch64_fml<f16mac1>lq_lane_lowv4sf): Ditto.
9506         (aarch64_fml<f16mac1>lq_lane_highv4sf): Ditto.
9507         (aarch64_simd_fml<f16mac>lq_lane_lowv4sf): Ditto.
9508         (aarch64_simd_fml<f16mac>lq_lane_highv4sf): Ditto.
9509         * config/aarch64/arm_neon.h (vfmlal_low_u32): New intrinsic.
9510         (vfmlsl_low_u32): Ditto.
9511         (vfmlalq_low_u32): Ditto.
9512         (vfmlslq_low_u32): Ditto.
9513         (vfmlal_high_u32): Ditto.
9514         (vfmlsl_high_u32): Ditto.
9515         (vfmlalq_high_u32): Ditto.
9516         (vfmlslq_high_u32): Ditto.
9517         (vfmlal_lane_low_u32): Ditto.
9518         (vfmlsl_lane_low_u32): Ditto.
9519         (vfmlal_laneq_low_u32): Ditto.
9520         (vfmlsl_laneq_low_u32): Ditto.
9521         (vfmlalq_lane_low_u32): Ditto.
9522         (vfmlslq_lane_low_u32): Ditto.
9523         (vfmlalq_laneq_low_u32): Ditto.
9524         (vfmlslq_laneq_low_u32): Ditto.
9525         (vfmlal_lane_high_u32): Ditto.
9526         (vfmlsl_lane_high_u32): Ditto.
9527         (vfmlal_laneq_high_u32): Ditto.
9528         (vfmlsl_laneq_high_u32): Ditto.
9529         (vfmlalq_lane_high_u32): Ditto.
9530         (vfmlslq_lane_high_u32): Ditto.
9531         (vfmlalq_laneq_high_u32): Ditto.
9532         (vfmlslq_laneq_high_u32): Ditto.
9533         * config/aarch64/aarch64.h (AARCH64_FL_F16SML): New flag.
9534         (AARCH64_FL_FOR_ARCH8_4): New.
9535         (AARCH64_ISA_F16FML): New ISA flag.
9536         (TARGET_F16FML): New feature flag for fp16fml.
9537         (doc/invoke.texi): Document new fp16fml option.
9538
9539 2018-01-10  Michael Collison  <michael.collison@arm.com>
9540
9541         * config/aarch64/aarch64-builtins.c:
9542         (aarch64_types_ternopu_imm_qualifiers, TYPES_TERNOPUI): New.
9543         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
9544         (__ARM_FEATURE_SHA3): Define if TARGET_SHA3 is true.
9545         * config/aarch64/aarch64.h (AARCH64_FL_SHA3): New flags.
9546         (AARCH64_ISA_SHA3): New ISA flag.
9547         (TARGET_SHA3): New feature flag for sha3.
9548         * config/aarch64/iterators.md (sha512_op): New int attribute.
9549         (CRYPTO_SHA512): New int iterator.
9550         (UNSPEC_SHA512H): New unspec.
9551         (UNSPEC_SHA512H2): Ditto.
9552         (UNSPEC_SHA512SU0): Ditto.
9553         (UNSPEC_SHA512SU1): Ditto.
9554         * config/aarch64/aarch64-simd-builtins.def
9555         (aarch64_crypto_sha512hqv2di): New builtin.
9556         (aarch64_crypto_sha512h2qv2di): Ditto.
9557         (aarch64_crypto_sha512su0qv2di): Ditto.
9558         (aarch64_crypto_sha512su1qv2di): Ditto.
9559         (aarch64_eor3qv8hi): Ditto.
9560         (aarch64_rax1qv2di): Ditto.
9561         (aarch64_xarqv2di): Ditto.
9562         (aarch64_bcaxqv8hi): Ditto.
9563         * config/aarch64/aarch64-simd.md:
9564         (aarch64_crypto_sha512h<sha512_op>qv2di): New pattern.
9565         (aarch64_crypto_sha512su0qv2di): Ditto.
9566         (aarch64_crypto_sha512su1qv2di): Ditto.
9567         (aarch64_eor3qv8hi): Ditto.
9568         (aarch64_rax1qv2di): Ditto.
9569         (aarch64_xarqv2di): Ditto.
9570         (aarch64_bcaxqv8hi): Ditto.
9571         * config/aarch64/arm_neon.h (vsha512hq_u64): New intrinsic.
9572         (vsha512h2q_u64): Ditto.
9573         (vsha512su0q_u64): Ditto.
9574         (vsha512su1q_u64): Ditto.
9575         (veor3q_u16): Ditto.
9576         (vrax1q_u64): Ditto.
9577         (vxarq_u64): Ditto.
9578         (vbcaxq_u16): Ditto.
9579         * config/arm/types.md (crypto_sha512): New type attribute.
9580         (crypto_sha3): Ditto.
9581         (doc/invoke.texi): Document new sha3 option.
9582
9583 2018-01-10  Michael Collison  <michael.collison@arm.com>
9584
9585         * config/aarch64/aarch64-builtins.c:
9586         (aarch64_types_quadopu_imm_qualifiers, TYPES_QUADOPUI): New.
9587         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
9588         (__ARM_FEATURE_SM3): Define if TARGET_SM4 is true.
9589         (__ARM_FEATURE_SM4): Define if TARGET_SM4 is true.
9590         * config/aarch64/aarch64.h (AARCH64_FL_SM4): New flags.
9591         (AARCH64_ISA_SM4): New ISA flag.
9592         (TARGET_SM4): New feature flag for sm4.
9593         * config/aarch64/aarch64-simd-builtins.def
9594         (aarch64_sm3ss1qv4si): Ditto.
9595         (aarch64_sm3tt1aq4si): Ditto.
9596         (aarch64_sm3tt1bq4si): Ditto.
9597         (aarch64_sm3tt2aq4si): Ditto.
9598         (aarch64_sm3tt2bq4si): Ditto.
9599         (aarch64_sm3partw1qv4si): Ditto.
9600         (aarch64_sm3partw2qv4si): Ditto.
9601         (aarch64_sm4eqv4si): Ditto.
9602         (aarch64_sm4ekeyqv4si): Ditto.
9603         * config/aarch64/aarch64-simd.md:
9604         (aarch64_sm3ss1qv4si): Ditto.
9605         (aarch64_sm3tt<sm3tt_op>qv4si): Ditto.
9606         (aarch64_sm3partw<sm3part_op>qv4si): Ditto.
9607         (aarch64_sm4eqv4si): Ditto.
9608         (aarch64_sm4ekeyqv4si): Ditto.
9609         * config/aarch64/iterators.md (sm3tt_op): New int iterator.
9610         (sm3part_op): Ditto.
9611         (CRYPTO_SM3TT): Ditto.
9612         (CRYPTO_SM3PART): Ditto.
9613         (UNSPEC_SM3SS1): New unspec.
9614         (UNSPEC_SM3TT1A): Ditto.
9615         (UNSPEC_SM3TT1B): Ditto.
9616         (UNSPEC_SM3TT2A): Ditto.
9617         (UNSPEC_SM3TT2B): Ditto.
9618         (UNSPEC_SM3PARTW1): Ditto.
9619         (UNSPEC_SM3PARTW2): Ditto.
9620         (UNSPEC_SM4E): Ditto.
9621         (UNSPEC_SM4EKEY): Ditto.
9622         * config/aarch64/constraints.md (Ui2): New constraint.
9623         * config/aarch64/predicates.md (aarch64_imm2): New predicate.
9624         * config/arm/types.md (crypto_sm3): New type attribute.
9625         (crypto_sm4): Ditto.
9626         * config/aarch64/arm_neon.h (vsm3ss1q_u32): New intrinsic.
9627         (vsm3tt1aq_u32): Ditto.
9628         (vsm3tt1bq_u32): Ditto.
9629         (vsm3tt2aq_u32): Ditto.
9630         (vsm3tt2bq_u32): Ditto.
9631         (vsm3partw1q_u32): Ditto.
9632         (vsm3partw2q_u32): Ditto.
9633         (vsm4eq_u32): Ditto.
9634         (vsm4ekeyq_u32): Ditto.
9635         (doc/invoke.texi): Document new sm4 option.
9636
9637 2018-01-10  Michael Collison  <michael.collison@arm.com>
9638
9639         * config/aarch64/aarch64-arches.def (armv8.4-a): New architecture.
9640         * config/aarch64/aarch64.h (AARCH64_ISA_V8_4): New ISA flag.
9641         (AARCH64_FL_FOR_ARCH8_4): New.
9642         (AARCH64_FL_V8_4): New flag.
9643         (doc/invoke.texi): Document new armv8.4-a option.
9644
9645 2018-01-10  Michael Collison  <michael.collison@arm.com>
9646
9647         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
9648         (__ARM_FEATURE_AES): Define if TARGET_AES is true.
9649         (__ARM_FEATURE_SHA2): Define if TARGET_SHA2 is true.
9650         * config/aarch64/aarch64-option-extension.def: Add
9651         AARCH64_OPT_EXTENSION of 'sha2'.
9652         (aes): Add AARCH64_OPT_EXTENSION of 'aes'.
9653         (crypto): Disable sha2 and aes if crypto disabled.
9654         (crypto): Enable aes and sha2 if enabled.
9655         (simd): Disable sha2 and aes if simd disabled.
9656         * config/aarch64/aarch64.h (AARCH64_FL_AES, AARCH64_FL_SHA2):
9657         New flags.
9658         (AARCH64_ISA_AES, AARCH64_ISA_SHA2): New ISA flags.
9659         (TARGET_SHA2): New feature flag for sha2.
9660         (TARGET_AES): New feature flag for aes.
9661         * config/aarch64/aarch64-simd.md:
9662         (aarch64_crypto_aes<aes_op>v16qi): Make pattern
9663         conditional on TARGET_AES.
9664         (aarch64_crypto_aes<aesmc_op>v16qi): Ditto.
9665         (aarch64_crypto_sha1hsi): Make pattern conditional
9666         on TARGET_SHA2.
9667         (aarch64_crypto_sha1hv4si): Ditto.
9668         (aarch64_be_crypto_sha1hv4si): Ditto.
9669         (aarch64_crypto_sha1su1v4si): Ditto.
9670         (aarch64_crypto_sha1<sha1_op>v4si): Ditto.
9671         (aarch64_crypto_sha1su0v4si): Ditto.
9672         (aarch64_crypto_sha256h<sha256_op>v4si): Ditto.
9673         (aarch64_crypto_sha256su0v4si): Ditto.
9674         (aarch64_crypto_sha256su1v4si): Ditto.
9675         (doc/invoke.texi): Document new aes and sha2 options.
9676
9677 2018-01-10  Martin Sebor  <msebor@redhat.com>
9678
9679         PR tree-optimization/83781
9680         * gimple-fold.c (get_range_strlen): Avoid treating arrays of pointers
9681         as string arrays.
9682
9683 2018-01-11  Martin Sebor  <msebor@gmail.com>
9684             Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
9685
9686         PR tree-optimization/83501
9687         PR tree-optimization/81703
9688
9689         * tree-ssa-strlen.c (get_string_cst): Rename...
9690         (get_string_len): ...to this.  Handle global constants.
9691         (handle_char_store): Adjust.
9692
9693 2018-01-10  Kito Cheng  <kito.cheng@gmail.com>
9694             Jim Wilson  <jimw@sifive.com>
9695
9696         * config/riscv/riscv-protos.h (riscv_output_return): New.
9697         * config/riscv/riscv.c (struct machine_function): New naked_p field.
9698         (riscv_attribute_table, riscv_output_return),
9699         (riscv_handle_fndecl_attribute, riscv_naked_function_p),
9700         (riscv_allocate_stack_slots_for_args, riscv_warn_func_return): New.
9701         (riscv_compute_frame_info): Only compute frame->mask if not a naked
9702         function.
9703         (riscv_expand_prologue): Add early return for naked function.
9704         (riscv_expand_epilogue): Likewise.
9705         (riscv_function_ok_for_sibcall): Return false for naked function.
9706         (riscv_set_current_function): New.
9707         (TARGET_SET_CURRENT_FUNCTION, TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS),
9708         (TARGET_ATTRIBUTE_TABLE, TARGET_WARN_FUNC_RETURN): New.
9709         * config/riscv/riscv.md (simple_return): Call riscv_output_return.
9710         * doc/extend.texi (RISC-V Function Attributes): New.
9711
9712 2018-01-10  Michael Meissner  <meissner@linux.vnet.ibm.com>
9713
9714         * config/rs6000/rs6000.c (is_complex_IBM_long_double): Explicitly
9715         check for 128-bit long double before checking TCmode.
9716         * config/rs6000/rs6000.h (FLOAT128_IEEE_P): Explicitly check for
9717         128-bit long doubles before checking TFmode or TCmode.
9718         (FLOAT128_IBM_P): Likewise.
9719
9720 2018-01-10  Martin Sebor  <msebor@redhat.com>
9721
9722         PR tree-optimization/83671
9723         * builtins.c (c_strlen): Unconditionally return zero for the empty
9724         string.
9725         Use -Warray-bounds for warnings.
9726         * gimple-fold.c (get_range_strlen): Handle non-constant lengths
9727         for non-constant array indices with COMPONENT_REF, arrays of
9728         arrays, and pointers to arrays.
9729         (gimple_fold_builtin_strlen): Determine and set length range for
9730         non-constant character arrays.
9731
9732 2018-01-10  Aldy Hernandez  <aldyh@redhat.com>
9733
9734         PR middle-end/81897
9735         * tree-ssa-uninit.c (convert_control_dep_chain_into_preds): Skip
9736         empty blocks.
9737
9738 2018-01-10  Eric Botcazou  <ebotcazou@adacore.com>
9739
9740         * dwarf2out.c (dwarf2out_var_location): Do not pass NULL to fprintf.
9741
9742 2018-01-10  Peter Bergner  <bergner@vnet.ibm.com>
9743
9744         PR target/83399
9745         * config/rs6000/rs6000.c (print_operand) <'y'>: Use
9746         VECTOR_MEM_ALTIVEC_OR_VSX_P.
9747         * config/rs6000/vsx.md (*vsx_le_perm_load_<mode> for VSX_D): Use
9748         indexed_or_indirect_operand predicate.
9749         (*vsx_le_perm_load_<mode> for VSX_W): Likewise.
9750         (*vsx_le_perm_load_v8hi): Likewise.
9751         (*vsx_le_perm_load_v16qi): Likewise.
9752         (*vsx_le_perm_store_<mode> for VSX_D): Likewise.
9753         (*vsx_le_perm_store_<mode> for VSX_W): Likewise.
9754         (*vsx_le_perm_store_v8hi): Likewise.
9755         (*vsx_le_perm_store_v16qi): Likewise.
9756         (eight unnamed splitters): Likewise.
9757
9758 2018-01-10  Peter Bergner  <bergner@vnet.ibm.com>
9759
9760         * config/rs6000/x86intrin.h: Change #warning to #error. Update message.
9761         * config/rs6000/emmintrin.h: Likewise.
9762         * config/rs6000/mmintrin.h: Likewise.
9763         * config/rs6000/xmmintrin.h: Likewise.
9764
9765 2018-01-10  David Malcolm  <dmalcolm@redhat.com>
9766
9767         PR c++/43486
9768         * tree-core.h: Document EXPR_LOCATION_WRAPPER_P's usage of
9769         "public_flag".
9770         * tree.c (tree_nop_conversion): Return true for location wrapper
9771         nodes.
9772         (maybe_wrap_with_location): New function.
9773         (selftest::check_strip_nops): New function.
9774         (selftest::test_location_wrappers): New function.
9775         (selftest::tree_c_tests): Call it.
9776         * tree.h (STRIP_ANY_LOCATION_WRAPPER): New macro.
9777         (maybe_wrap_with_location): New decl.
9778         (EXPR_LOCATION_WRAPPER_P): New macro.
9779         (location_wrapper_p): New inline function.
9780         (tree_strip_any_location_wrapper): New inline function.
9781
9782 2018-01-10  H.J. Lu  <hongjiu.lu@intel.com>
9783
9784         PR target/83735
9785         * config/i386/i386.c (ix86_compute_frame_layout): Always adjust
9786         stack_realign_offset for the largest alignment of stack slot
9787         actually used.
9788         (ix86_find_max_used_stack_alignment): New function.
9789         (ix86_finalize_stack_frame_flags): Use it.  Set
9790         max_used_stack_alignment if we don't realign stack.
9791         * config/i386/i386.h (machine_function): Add
9792         max_used_stack_alignment.
9793
9794 2018-01-10  Christophe Lyon  <christophe.lyon@linaro.org>
9795
9796         * config/arm/arm.opt (-mbranch-cost): New option.
9797         * config/arm/arm.h (BRANCH_COST): Take arm_branch_cost into
9798         account.
9799
9800 2018-01-10  Segher Boessenkool  <segher@kernel.crashing.org>
9801
9802         PR target/83629
9803         * config/rs6000/rs6000.md (load_toc_v4_PIC_2, load_toc_v4_PIC_3b,
9804         load_toc_v4_PIC_3c): Wrap const term in CONST RTL.
9805
9806 2018-01-10  Richard Biener  <rguenther@suse.de>
9807
9808         PR debug/83765
9809         * dwarf2out.c (gen_subprogram_die): Hoist old_die && declaration
9810         early out so it also covers the case where we have a non-NULL
9811         origin.
9812
9813 2018-01-10  Richard Sandiford  <richard.sandiford@linaro.org>
9814
9815         PR tree-optimization/83753
9816         * tree-vect-stmts.c (get_group_load_store_type): Use VMAT_CONTIGUOUS
9817         for non-strided grouped accesses if the number of elements is 1.
9818
9819 2018-01-10  Jan Hubicka  <hubicka@ucw.cz>
9820
9821         PR target/81616
9822         * i386.c (ix86_vectorize_builtin_gather): Check TARGET_USE_GATHER.
9823         * i386.h (TARGET_USE_GATHER): Define.
9824         * x86-tune.def (X86_TUNE_USE_GATHER): New.
9825
9826 2018-01-10  Martin Liska  <mliska@suse.cz>
9827
9828         PR bootstrap/82831
9829         * basic-block.h (CLEANUP_NO_PARTITIONING): New define.
9830         * bb-reorder.c (pass_reorder_blocks::execute): Do not clean up
9831         partitioning.
9832         * cfgcleanup.c (try_optimize_cfg): Fix up partitioning if
9833         CLEANUP_NO_PARTITIONING is not set.
9834
9835 2018-01-10  Richard Sandiford  <richard.sandiford@linaro.org>
9836
9837         * doc/rtl.texi: Remove documentation of (const ...) wrappers
9838         for vectors, as a partial revert of r254296.
9839         * rtl.h (const_vec_p): Delete.
9840         (const_vec_duplicate_p): Don't test for vector CONSTs.
9841         (unwrap_const_vec_duplicate, const_vec_series_p): Likewise.
9842         * expmed.c (make_tree): Likewise.
9843
9844         Revert:
9845         * common.md (E, F): Use CONSTANT_P instead of checking for
9846         CONST_VECTOR.
9847         * emit-rtl.c (gen_lowpart_common): Use const_vec_p instead of
9848         checking for CONST_VECTOR.
9849
9850 2018-01-09  Jan Hubicka  <hubicka@ucw.cz>
9851
9852         PR middle-end/83575
9853         * predict.c (force_edge_cold): Handle in more sane way edges
9854         with no prediction.
9855
9856 2018-01-09  Carl Love  <cel@us.ibm.com>
9857
9858         * config/rs6002/altivec.md (p8_vmrgow): Add support for V2DI, V2DF,
9859         V4SI, V4SF types.
9860         (p8_vmrgew): Add support for V2DI, V2DF, V4SF types.
9861         * config/rs6000/rs6000-builtin.def: Add definitions for FLOAT2_V2DF,
9862         VMRGEW_V2DI, VMRGEW_V2DF, VMRGEW_V4SF, VMRGOW_V4SI, VMRGOW_V4SF,
9863         VMRGOW_V2DI, VMRGOW_V2DF.  Remove definition for VMRGOW.
9864         * config/rs6000/rs6000-c.c (VSX_BUILTIN_VEC_FLOAT2,
9865         P8V_BUILTIN_VEC_VMRGEW, P8V_BUILTIN_VEC_VMRGOW):  Add definitions.
9866         * config/rs6000/rs6000-protos.h: Add extern defition for
9867         rs6000_generate_float2_double_code.
9868         * config/rs6000/rs6000.c (rs6000_generate_float2_double_code): Add
9869         function.
9870         * config/rs6000/vsx.md (vsx_xvcdpsp): Add define_insn.
9871         (float2_v2df): Add define_expand.
9872
9873 2018-01-09  Uros Bizjak  <ubizjak@gmail.com>
9874
9875         PR target/83628
9876         * combine.c (force_int_to_mode) <case ASHIFT>: Use mode instead of
9877         op_mode in the force_to_mode call.
9878
9879 2018-01-09  Richard Sandiford  <richard.sandiford@linaro.org>
9880
9881         * config/aarch64/aarch64.c (aarch64_evpc_trn): Use d.perm.series_p
9882         instead of checking each element individually.
9883         (aarch64_evpc_uzp): Likewise.
9884         (aarch64_evpc_zip): Likewise.
9885         (aarch64_evpc_ext): Likewise.
9886         (aarch64_evpc_rev): Likewise.
9887         (aarch64_evpc_dup): Test the encoding for a single duplicated element,
9888         instead of checking each element individually.  Return true without
9889         generating rtl if
9890         (aarch64_vectorize_vec_perm_const): Use all_from_input_p to test
9891         whether all selected elements come from the same input, instead of
9892         checking each element individually.  Remove calls to gen_rtx_REG,
9893         start_sequence and end_sequence and instead assert that no rtl is
9894         generated.
9895
9896 2018-01-09  Richard Sandiford  <richard.sandiford@linaro.org>
9897
9898         * config/aarch64/aarch64.c (aarch64_legitimate_constant_p): Fix
9899         order of HIGH and CONST checks.
9900
9901 2018-01-09  Richard Sandiford  <richard.sandiford@linaro.org>
9902
9903         * tree-vect-stmts.c (permute_vec_elements): Create a fresh variable
9904         if the destination isn't an SSA_NAME.
9905
9906 2018-01-09  Richard Biener  <rguenther@suse.de>
9907
9908         PR tree-optimization/83668
9909         * graphite.c (canonicalize_loop_closed_ssa): Add edge argument,
9910         move prologue...
9911         (canonicalize_loop_form): ... here, renamed from ...
9912         (canonicalize_loop_closed_ssa_form): ... this and amended to
9913         swap successor edges for loop exit blocks to make us use
9914         the RPO order we need for initial schedule generation.
9915
9916 2018-01-09  Joseph Myers  <joseph@codesourcery.com>
9917
9918         PR tree-optimization/64811
9919         * match.pd: When optimizing comparisons with Inf, avoid
9920         introducing or losing exceptions from comparisons with NaN.
9921
9922 2018-01-09  Martin Liska  <mliska@suse.cz>
9923
9924         PR sanitizer/82517
9925         * asan.c (shadow_mem_size): Add gcc_assert.
9926
9927 2018-01-09  Georg-Johann Lay  <avr@gjlay.de>
9928
9929         Don't save registers in main().
9930
9931         PR target/83738
9932         * doc/invoke.texi (AVR Options) [-mmain-is-OS_task]: Document it.
9933         * config/avr/avr.opt (-mmain-is-OS_task): New target option.
9934         * config/avr/avr.c (avr_set_current_function): Don't error if
9935         naked, OS_task or OS_main are specified at the same time.
9936         (avr_function_ok_for_sibcall): Don't disable sibcalls for OS_task,
9937         OS_main.
9938         (avr_insert_attributes) [-mmain-is-OS_task] <main>: Add OS_task
9939         attribute.
9940         * common/config/avr/avr-common.c (avr_option_optimization_table):
9941         Switch on -mmain-is-OS_task for optimizing compilations.
9942
9943 2018-01-09  Richard Biener  <rguenther@suse.de>
9944
9945         PR tree-optimization/83572
9946         * graphite.c: Include cfganal.h.
9947         (graphite_transform_loops): Connect infinite loops to exit
9948         and remove fake edges at the end.
9949
9950 2018-01-09  Jan Hubicka  <hubicka@ucw.cz>
9951
9952         * ipa-inline.c (edge_badness): Revert accidental checkin.
9953
9954 2018-01-09  Jan Hubicka  <hubicka@ucw.cz>
9955
9956         PR ipa/80763
9957         * ipa-comdats.c (set_comdat_group): Only set comdat group of real
9958         symbols; not inline clones.
9959
9960 2018-01-09  Jakub Jelinek  <jakub@redhat.com>
9961
9962         PR target/83507
9963         * modulo-sched.c (schedule_reg_moves): Punt if we'd need to move
9964         hard registers.  Formatting fixes.
9965
9966         PR preprocessor/83722
9967         * gcc.c (try_generate_repro): Pass
9968         &temp_stderr_files[RETRY_ICE_ATTEMPTS - 1] rather than
9969         &temp_stdout_files[RETRY_ICE_ATTEMPTS - 1] as last argument to
9970         do_report_bug.
9971
9972 2018-01-08  Monk Chiang  <sh.chiang04@gmail.com>
9973             Kito Cheng  <kito.cheng@gmail.com>
9974
9975         * config/riscv/riscv.c (machine_function::is_leaf): Remove field.
9976         (riscv_leaf_function_p): Delete.
9977         (riscv_function_ok_for_sibcall): Return false when TARGET_SAVE_RESTORE.
9978
9979 2018-01-08  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
9980
9981         * config/rs6000/rs6000-string.c (do_load_for_compare_from_addr): New
9982         function.
9983         (do_ifelse): New function.
9984         (do_isel): New function.
9985         (do_sub3): New function.
9986         (do_add3): New function.
9987         (do_load_mask_compare): New function.
9988         (do_overlap_load_compare): New function.
9989         (expand_compare_loop): New function.
9990         (expand_block_compare): Call expand_compare_loop() when appropriate.
9991         * config/rs6000/rs6000.opt (-mblock-compare-inline-limit): Change
9992         option description.
9993         (-mblock-compare-inline-loop-limit): New option.
9994
9995 2018-01-08  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
9996
9997         PR target/83677
9998         * config/rs6000/altivec.md (*altivec_vpermr_<mode>_internal):
9999         Reverse order of second and third operands in first alternative.
10000         * config/rs6000/rs6000.c (rs6000_expand_vector_set): Reverse order
10001         of first and second elements in UNSPEC_VPERMR vector.
10002         (altivec_expand_vec_perm_le): Likewise.
10003
10004 2018-01-08  Jeff Law  <law@redhat.com>
10005
10006         PR rtl-optimizatin/81308
10007         * tree-switch-conversion.c (cfg_altered): New file scoped static.
10008         (process_switch): If group_case_labels makes a change, then set
10009         cfg_altered.
10010         (pass_convert_switch::execute): If a switch is converted, then
10011         set cfg_altered.  Return TODO_cfg_cleanup if cfg_altered is true.
10012
10013         PR rtl-optimization/81308
10014         * recog.c (split_all_insns): Conditionally cleanup the CFG after
10015         splitting insns.
10016
10017 2018-01-08  Vidya Praveen  <vidyapraveen@arm.com>
10018
10019         PR target/83663 - Revert r255946
10020         * config/aarch64/aarch64.c (aarch64_expand_vector_init): Modify code
10021         generation for cases where splatting a value is not useful.
10022         * simplify-rtx.c (simplify_ternary_operation): Simplify vec_merge
10023         across a vec_duplicate and a paradoxical subreg forming a vector
10024         mode to a vec_concat.
10025
10026 2018-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
10027
10028         * config/arm/t-aprofile (MULTILIB_MATCHES): Add mapping rules for
10029         -march=armv8.3-a variants.
10030         * config/arm/t-multilib: Likewise.
10031         * config/arm/t-arm-elf: Likewise.  Handle dotprod extension.
10032
10033 2018-01-08  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
10034
10035         * config/rs6000/rs6000.md (cceq_ior_compare): Remove * so I can use it
10036         to generate rtl.
10037         (cceq_ior_compare_complement): Give it a name so I can use it, and
10038         change boolean_or_operator predicate to boolean_operator so it can
10039         be used to generate a crand.
10040         (eqne): New code iterator.
10041         (bd/bd_neg): New code_attrs.
10042         (<bd>_<mode>): New name for ctr<mode>_internal[12] now combined into
10043         a single define_insn.
10044         (<bd>tf_<mode>): A new insn pattern for the conditional form branch
10045         decrement (bdnzt/bdnzf/bdzt/bdzf).
10046         * config/rs6000/rs6000.c (rs6000_legitimate_combined_insn): Updated
10047         with the new names of the branch decrement patterns, and added the
10048         names of the branch decrement conditional patterns.
10049
10050 2018-01-08  Richard Biener  <rguenther@suse.de>
10051
10052         PR tree-optimization/83563
10053         * graphite.c (canonicalize_loop_closed_ssa_form): Reset the SCEV
10054         cache.
10055
10056 2018-01-08  Richard Biener  <rguenther@suse.de>
10057
10058         PR middle-end/83713
10059         * convert.c (do_narrow): Properly guard TYPE_OVERFLOW_WRAPS checks.
10060
10061 2018-01-08  Richard Biener  <rguenther@suse.de>
10062
10063         PR tree-optimization/83685
10064         * tree-ssa-pre.c (create_expression_by_pieces): Do not insert
10065         references to abnormals.
10066
10067 2018-01-08  Richard Biener  <rguenther@suse.de>
10068
10069         PR lto/83719
10070         * dwarf2out.c (output_indirect_strings): Handle empty
10071         skeleton_debug_str_hash.
10072         (dwarf2out_early_finish): Index strings for -gsplit-dwarf.
10073
10074 2018-01-08  Claudiu Zissulescu  <claziss@synopsys.com>
10075
10076         * config/arc/arc.c (TARGET_TRAMPOLINE_ADJUST_ADDRESS): Delete.
10077         (emit_store_direct): Likewise.
10078         (arc_trampoline_adjust_address): Likewise.
10079         (arc_asm_trampoline_template): New function.
10080         (arc_initialize_trampoline): Use asm_trampoline_template.
10081         (TARGET_ASM_TRAMPOLINE_TEMPLATE): Define.
10082         * config/arc/arc.h (TRAMPOLINE_SIZE): Adjust to 16.
10083         * config/arc/arc.md (flush_icache): Delete pattern.
10084
10085 2018-01-08  Claudiu Zissulescu  <claziss@synopsys.com>
10086
10087         * config/arc/arc-c.def (__ARC_UNALIGNED__): New define.
10088         * config/arc/arc.h (STRICT_ALIGNMENT): Control this macro using
10089         munaligned-access.
10090
10091 2018-01-08  Sebastian Huber  <sebastian.huber@embedded-brains.de>
10092
10093         PR target/83681
10094         * config/epiphany/epiphany.h (make_pass_mode_switch_use): Guard
10095         by not USED_FOR_TARGET.
10096         (make_pass_resolve_sw_modes): Likewise.
10097
10098 2018-01-08  Sebastian Huber  <sebastian.huber@embedded-brains.de>
10099
10100         * config/nios2/nios2.h (nios2_section_threshold): Guard by not
10101         USED_FOR_TARGET.
10102
10103 2018-01-08  Richard Biener  <rguenther@suse.de>
10104
10105         PR middle-end/83580
10106         * tree-data-ref.c (split_constant_offset): Remove STRIP_NOPS.
10107
10108 2018-01-08  Richard Biener  <rguenther@suse.de>
10109
10110         PR middle-end/83517
10111         * match.pd ((t * 2) / 2) -> t): Add missing :c.
10112
10113 2018-01-06  Aldy Hernandez  <aldyh@redhat.com>
10114
10115         PR middle-end/81897
10116         * tree-ssa-uninit.c (compute_control_dep_chain): Do not bail on
10117         basic blocks with a small number of successors.
10118         (convert_control_dep_chain_into_preds): Improve handling of
10119         forwarder blocks.
10120         (dump_predicates): Split apart into...
10121         (dump_pred_chain): ...here...
10122         (dump_pred_info): ...and here.
10123         (can_one_predicate_be_invalidated_p): Add debugging printfs.
10124         (can_chain_union_be_invalidated_p): Improve check for invalidation
10125         of paths.
10126         (uninit_uses_cannot_happen): Avoid unnecessary if
10127         convert_control_dep_chain_into_preds yielded nothing.
10128
10129 2018-01-06  Martin Sebor  <msebor@redhat.com>
10130
10131         PR tree-optimization/83640
10132         * gimple-ssa-warn-restrict.c (builtin_access::builtin_access): Avoid
10133         subtracting negative offset from size.
10134         (builtin_access::overlap): Adjust offset bounds of the access to fall
10135         within the size of the object if possible.
10136
10137 2018-01-06  Richard Sandiford  <richard.sandiford@linaro.org>
10138
10139         PR rtl-optimization/83699
10140         * expmed.c (extract_bit_field_1): Restrict the vector usage of
10141         extract_bit_field_as_subreg to cases in which the extracted
10142         value is also a vector.
10143
10144         * lra-constraints.c (process_alt_operands): Test for the equivalence
10145         substitutions when detecting a possible reload cycle.
10146
10147 2018-01-06  Jakub Jelinek  <jakub@redhat.com>
10148
10149         PR debug/83480
10150         * toplev.c (process_options): Don't enable debug_nonbind_markers_p
10151         by default if flag_selective_schedling{,2}.  Formatting fixes.
10152
10153         PR rtl-optimization/83682
10154         * rtl.h (const_vec_duplicate_p): Only return true for VEC_DUPLICATE
10155         if it has non-VECTOR_MODE element mode.
10156         (vec_duplicate_p): Likewise.
10157
10158         PR middle-end/83694
10159         * cfgexpand.c (expand_debug_expr): Punt if mode1 is VOIDmode
10160         and bitsize might be greater than MAX_BITSIZE_MODE_ANY_INT.
10161
10162 2018-01-05  Jakub Jelinek  <jakub@redhat.com>
10163
10164         PR target/83604
10165         * config/i386/i386-builtin.def
10166         (__builtin_ia32_vgf2p8affineinvqb_v64qi,
10167         __builtin_ia32_vgf2p8affineqb_v64qi, __builtin_ia32_vgf2p8mulb_v64qi):
10168         Require also OPTION_MASK_ISA_AVX512F in addition to
10169         OPTION_MASK_ISA_GFNI.
10170         (__builtin_ia32_vgf2p8affineinvqb_v16qi_mask,
10171         __builtin_ia32_vgf2p8affineqb_v16qi_mask): Require
10172         OPTION_MASK_ISA_AVX512VL instead of OPTION_MASK_ISA_SSE in addition
10173         to OPTION_MASK_ISA_GFNI.
10174         (__builtin_ia32_vgf2p8mulb_v32qi_mask): Require
10175         OPTION_MASK_ISA_AVX512VL in addition to OPTION_MASK_ISA_GFNI and
10176         OPTION_MASK_ISA_AVX512BW.
10177         (__builtin_ia32_vgf2p8mulb_v16qi_mask): Require
10178         OPTION_MASK_ISA_AVX512VL instead of OPTION_MASK_ISA_AVX512BW in
10179         addition to OPTION_MASK_ISA_GFNI.
10180         (__builtin_ia32_vgf2p8affineinvqb_v16qi,
10181         __builtin_ia32_vgf2p8affineqb_v16qi, __builtin_ia32_vgf2p8mulb_v16qi):
10182         Require OPTION_MASK_ISA_SSE2 instead of OPTION_MASK_ISA_SSE in addition
10183         to OPTION_MASK_ISA_GFNI.
10184         * config/i386/i386.c (def_builtin): Change to builtin isa/isa2 being
10185         a requirement for all ISAs rather than any of them with a few
10186         exceptions.
10187         (ix86_add_new_builtins): Clear OPTION_MASK_ISA_64BIT from isa before
10188         processing.
10189         (ix86_expand_builtin): Require all ISAs from builtin's isa and isa2
10190         bitmasks to be enabled with 3 exceptions, instead of requiring any
10191         enabled ISA with lots of exceptions.
10192         * config/i386/sse.md (vgf2p8affineinvqb_<mode><mask_name>,
10193         vgf2p8affineqb_<mode><mask_name>, vgf2p8mulb_<mode><mask_name>):
10194         Change avx512bw in isa attribute to avx512f.
10195         * config/i386/sgxintrin.h: Add license boilerplate.
10196         * config/i386/vaesintrin.h: Likewise.  Fix macro spelling __AVX512F
10197         to __AVX512F__ and __AVX512VL to __AVX512VL__.
10198         (_mm256_aesdec_epi128, _mm256_aesdeclast_epi128, _mm256_aesenc_epi128,
10199         _mm256_aesenclast_epi128): Enable temporarily avx if __AVX__ is not
10200         defined.
10201         * config/i386/gfniintrin.h (_mm_gf2p8mul_epi8,
10202         _mm_gf2p8affineinv_epi64_epi8, _mm_gf2p8affine_epi64_epi8): Enable
10203         temporarily sse2 rather than sse if not enabled already.
10204
10205         PR target/83604
10206         * config/i386/sse.md (VI248_VLBW): Rename to ...
10207         (VI248_AVX512VL): ... this.  Don't guard V32HI with TARGET_AVX512BW.
10208         (vpshrd_<mode><mask_name>, vpshld_<mode><mask_name>,
10209         vpshrdv_<mode>, vpshrdv_<mode>_mask, vpshrdv_<mode>_maskz,
10210         vpshrdv_<mode>_maskz_1, vpshldv_<mode>, vpshldv_<mode>_mask,
10211         vpshldv_<mode>_maskz, vpshldv_<mode>_maskz_1): Use VI248_AVX512VL
10212         mode iterator instead of VI248_VLBW.
10213
10214 2018-01-05  Jan Hubicka  <hubicka@ucw.cz>
10215
10216         * ipa-fnsummary.c (record_modified_bb_info): Add OP.
10217         (record_modified): Skip clobbers; add debug output.
10218         (param_change_prob): Use sreal frequencies.
10219
10220 2018-01-05  Richard Sandiford  <richard.sandiford@linaro.org>
10221
10222         * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Don't
10223         punt for user-aligned variables.
10224
10225 2018-01-05  Richard Sandiford  <richard.sandiford@linaro.org>
10226
10227         * tree-chrec.c (chrec_contains_symbols): Return true for
10228         POLY_INT_CST.
10229
10230 2018-01-05  Sudakshina Das  <sudi.das@arm.com>
10231
10232         PR target/82439
10233         * simplify-rtx.c (simplify_relational_operation_1): Add simplifications
10234         of (x|y) == x for BICS pattern.
10235
10236 2018-01-05  Jakub Jelinek  <jakub@redhat.com>
10237
10238         PR tree-optimization/83605
10239         * gimple-ssa-strength-reduction.c: Include tree-eh.h.
10240         (find_candidates_dom_walker::before_dom_children): Ignore stmts that
10241         can throw.
10242
10243 2018-01-05  Sebastian Huber  <sebastian.huber@embedded-brains.de>
10244
10245         * config.gcc (epiphany-*-elf*): Add (epiphany-*-rtems*) configuration.
10246         * config/epiphany/rtems.h: New file.
10247
10248 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
10249             Uros Bizjak  <ubizjak@gmail.com>
10250
10251         PR target/83554
10252         * config/i386/i386.md (*<rotate_insn>hi3_1 splitter): Use
10253         QIreg_operand instead of register_operand predicate.
10254         * config/i386/i386.c (ix86_rop_should_change_byte_p,
10255         set_rop_modrm_reg_bits, ix86_mitigate_rop): Use -mmitigate-rop in
10256         comments instead of -fmitigate[-_]rop.
10257
10258 2018-01-04  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
10259
10260         PR bootstrap/81926
10261         * cgraphunit.c (symbol_table::compile): Switch to text_section
10262         before calling assembly_start debug hook.
10263         * run-rtl-passes.c (run_rtl_passes): Likewise.
10264         Include output.h.
10265
10266 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
10267
10268         * tree-vrp.c (extract_range_from_binary_expr_1): Check
10269         range_int_cst_p rather than !symbolic_range_p before calling
10270         extract_range_from_multiplicative_op_1.
10271
10272 2018-01-04  Jeff Law  <law@redhat.com>
10273
10274         * tree-ssa-math-opts.c (execute_cse_reciprocals_1): Remove
10275         redundant test in assertion.
10276
10277 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
10278
10279         * doc/rtl.texi: Document machine_mode wrapper classes.
10280
10281 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
10282
10283         * fold-const.c (fold_ternary_loc): Check tree_fits_uhwi_p before
10284         using tree_to_uhwi.
10285
10286 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
10287
10288         * tree-ssa-forwprop.c (is_combined_permutation_identity): Allow
10289         the VEC_PERM_EXPR fold to fail.
10290
10291 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
10292
10293         PR debug/83585
10294         * bb-reorder.c (insert_section_boundary_note): Set has_bb_partition
10295         to switched_sections.
10296
10297 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
10298
10299         PR target/83680
10300         * config/arm/arm.c (arm_vectorize_vec_perm_const): Fix inverted
10301         test for d.testing.
10302
10303 2018-01-04  Peter Bergner  <bergner@vnet.ibm.com>
10304
10305         PR target/83387
10306         * config/rs6000/rs6000.c (rs6000_discover_homogeneous_aggregate): Do not
10307         allow arguments in FP registers if TARGET_HARD_FLOAT is false.
10308
10309 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
10310
10311         PR debug/83666
10312         * cfgexpand.c (expand_debug_expr) <case BIT_FIELD_REF>: Punt if mode
10313         is BLKmode and bitpos not zero or mode change is needed.
10314
10315 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
10316
10317         PR target/83675
10318         * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): Require
10319         TARGET_VIS2.
10320
10321 2018-01-04  Uros Bizjak  <ubizjak@gmail.com>
10322
10323         PR target/83628
10324         * config/alpha/alpha.md (*sadd<modesuffix>): Use ASHIFT
10325         instead of MULT rtx.  Update all corresponding splitters.
10326         (*saddl_se): Ditto.
10327         (*ssub<modesuffix>): Ditto.
10328         (*ssubl_se): Ditto.
10329         (*cmp_sadd_di): Update split patterns.
10330         (*cmp_sadd_si): Ditto.
10331         (*cmp_sadd_sidi): Ditto.
10332         (*cmp_ssub_di): Ditto.
10333         (*cmp_ssub_si): Ditto.
10334         (*cmp_ssub_sidi): Ditto.
10335         * config/alpha/predicates.md (const23_operand): New predicate.
10336         * config/alpha/alpha.c (alpha_rtx_costs) [PLUS, MINUS]:
10337         Look for ASHIFT, not MULT inner operand.
10338         (alpha_split_conditional_move): Update for *sadd<modesuffix> change.
10339
10340 2018-01-04  Martin Liska  <mliska@suse.cz>
10341
10342         PR gcov-profile/83669
10343         * gcov.c (output_intermediate_file): Add version to intermediate
10344         gcov file.
10345         * doc/gcov.texi: Document new field 'version' in intermediate
10346         file format. Fix location of '-k' option of gcov command.
10347
10348 2018-01-04  Martin Liska  <mliska@suse.cz>
10349
10350         PR ipa/82352
10351         * ipa-icf.c (sem_function::merge): Do not cross comdat boundary.
10352
10353 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
10354
10355         * gimple-ssa-sprintf.c (parse_directive): Cast second dir.len to uhwi.
10356
10357 2018-01-03  Martin Sebor  <msebor@redhat.com>
10358
10359         PR tree-optimization/83655
10360         * gimple-ssa-warn-restrict.c (wrestrict_dom_walker::check_call): Avoid
10361         checking calls with invalid arguments.
10362
10363 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10364
10365         * tree-vect-stmts.c (vect_get_store_rhs): New function.
10366         (vectorizable_mask_load_store): Delete.
10367         (vectorizable_call): Return false for masked loads and stores.
10368         (vectorizable_store): Handle IFN_MASK_STORE.  Use vect_get_store_rhs
10369         instead of gimple_assign_rhs1.
10370         (vectorizable_load): Handle IFN_MASK_LOAD.
10371         (vect_transform_stmt): Don't set is_store for call_vec_info_type.
10372
10373 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10374
10375         * tree-vect-stmts.c (vect_build_gather_load_calls): New function,
10376         split out from..,
10377         (vectorizable_mask_load_store): ...here.
10378         (vectorizable_load): ...and here.
10379
10380 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10381
10382         * tree-vect-stmts.c (vect_build_all_ones_mask)
10383         (vect_build_zero_merge_argument): New functions, split out from...
10384         (vectorizable_load): ...here.
10385
10386 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10387
10388         * tree-vect-stmts.c (vect_check_store_rhs): New function,
10389         split out from...
10390         (vectorizable_mask_load_store): ...here.
10391         (vectorizable_store): ...and here.
10392
10393 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10394
10395         * tree-vect-stmts.c (vect_check_load_store_mask): New function,
10396         split out from...
10397         (vectorizable_mask_load_store): ...here.
10398
10399 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10400
10401         * tree-vectorizer.h (vec_load_store_type): Moved from tree-vec-stmts.c
10402         (vect_model_store_cost): Take a vec_load_store_type instead of a
10403         vect_def_type.
10404         * tree-vect-stmts.c (vec_load_store_type): Move to tree-vectorizer.h.
10405         (vect_model_store_cost): Take a vec_load_store_type instead of a
10406         vect_def_type.
10407         (vectorizable_mask_load_store): Update accordingly.
10408         (vectorizable_store): Likewise.
10409         * tree-vect-slp.c (vect_analyze_slp_cost_1): Update accordingly.
10410
10411 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10412
10413         * tree-vect-loop.c (vect_transform_loop): Stub out scalar
10414         IFN_MASK_LOAD calls here rather than...
10415         * tree-vect-stmts.c (vectorizable_mask_load_store): ...here.
10416
10417 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10418             Alan Hayward  <alan.hayward@arm.com>
10419             David Sherwood  <david.sherwood@arm.com>
10420
10421         * expmed.c (extract_bit_field_1): For vector extracts,
10422         fall back to extract_bit_field_as_subreg if vec_extract
10423         isn't available.
10424
10425 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10426             Alan Hayward  <alan.hayward@arm.com>
10427             David Sherwood  <david.sherwood@arm.com>
10428
10429         * lra-spills.c (pseudo_reg_slot_compare): Sort slots by whether
10430         they are variable or constant sized.
10431         (assign_stack_slot_num_and_sort_pseudos): Don't reuse variable-sized
10432         slots for constant-sized data.
10433
10434 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10435             Alan Hayward  <alan.hayward@arm.com>
10436             David Sherwood  <david.sherwood@arm.com>
10437
10438         * tree-vect-patterns.c (vect_recog_mask_conversion_pattern): When
10439         handling COND_EXPRs with boolean comparisons, try to find a better
10440         basis for the mask type than the boolean itself.
10441
10442 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10443
10444         * doc/rtl.texi (MAX_BITSIZE_MODE_ANY_MODE): Describe how the default
10445         is calculated and how it can be overridden.
10446         * genmodes.c (max_bitsize_mode_any_mode): New variable.
10447         (create_modes): Initialize it from MAX_BITSIZE_MODE_ANY_MODE,
10448         if defined.
10449         (emit_max_int): Use it to set the output MAX_BITSIZE_MODE_ANY_MODE,
10450         if nonzero.
10451
10452 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10453             Alan Hayward  <alan.hayward@arm.com>
10454             David Sherwood  <david.sherwood@arm.com>
10455
10456         * config/aarch64/aarch64-protos.h (aarch64_output_simd_mov_immediate):
10457         Remove the mode argument.
10458         (aarch64_simd_valid_immediate): Remove the mode and inverse
10459         arguments.
10460         * config/aarch64/iterators.md (bitsize): New iterator.
10461         * config/aarch64/aarch64-simd.md (*aarch64_simd_mov<mode>, and<mode>3)
10462         (ior<mode>3): Update calls to aarch64_output_simd_mov_immediate.
10463         * config/aarch64/constraints.md (Do, Db, Dn): Update calls to
10464         aarch64_simd_valid_immediate.
10465         * config/aarch64/predicates.md (aarch64_reg_or_orr_imm): Likewise.
10466         (aarch64_reg_or_bic_imm): Likewise.
10467         * config/aarch64/aarch64.c (simd_immediate_info): Replace mvn
10468         with an insn_type enum and msl with a modifier_type enum.
10469         Replace element_width with a scalar_mode.  Change the shift
10470         to unsigned int.  Add constructors for scalar_float_mode and
10471         scalar_int_mode elements.
10472         (aarch64_vect_float_const_representable_p): Delete.
10473         (aarch64_can_const_movi_rtx_p)
10474         (aarch64_simd_scalar_immediate_valid_for_move)
10475         (aarch64_simd_make_constant): Update call to
10476         aarch64_simd_valid_immediate.
10477         (aarch64_advsimd_valid_immediate_hs): New function.
10478         (aarch64_advsimd_valid_immediate): Likewise.
10479         (aarch64_simd_valid_immediate): Remove mode and inverse
10480         arguments.  Rewrite to use the above.  Use const_vec_duplicate_p
10481         to detect duplicated constants and use aarch64_float_const_zero_rtx_p
10482         and aarch64_float_const_representable_p on the result.
10483         (aarch64_output_simd_mov_immediate): Remove mode argument.
10484         Update call to aarch64_simd_valid_immediate and use of
10485         simd_immediate_info.
10486         (aarch64_output_scalar_simd_mov_immediate): Update call
10487         accordingly.
10488
10489 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10490             Alan Hayward  <alan.hayward@arm.com>
10491             David Sherwood  <david.sherwood@arm.com>
10492
10493         * machmode.h (mode_precision): Prefix with CONST_MODE_PRECISION.
10494         (mode_nunits): Likewise CONST_MODE_NUNITS.
10495         * machmode.def (ADJUST_NUNITS): Document.
10496         * genmodes.c (mode_data::need_nunits_adj): New field.
10497         (blank_mode): Update accordingly.
10498         (adj_nunits): New variable.
10499         (print_maybe_const_decl): Replace CATEGORY with a NEEDS_ADJ
10500         parameter.
10501         (emit_mode_size_inline): Set need_bytesize_adj for all modes
10502         listed in adj_nunits.
10503         (emit_mode_nunits_inline): Set need_nunits_adj for all modes
10504         listed in adj_nunits.  Don't emit case statements for such modes.
10505         (emit_insn_modes_h): Emit definitions of CONST_MODE_NUNITS
10506         and CONST_MODE_PRECISION.  Make CONST_MODE_SIZE expand to
10507         nothing if adj_nunits is nonnull.
10508         (emit_mode_precision, emit_mode_nunits): Use print_maybe_const_decl.
10509         (emit_mode_unit_size, emit_mode_base_align, emit_mode_ibit)
10510         (emit_mode_fbit): Update use of print_maybe_const_decl.
10511         (emit_move_size): Likewise.  Treat the array as non-const
10512         if adj_nunits.
10513         (emit_mode_adjustments): Handle adj_nunits.
10514
10515 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10516
10517         * machmode.def (VECTOR_MODES_WITH_PREFIX): Document.
10518         * genmodes.c (VECTOR_MODES_WITH_PREFIX): New macro.
10519         (VECTOR_MODES): Use it.
10520         (make_vector_modes): Take the prefix as an argument.
10521
10522 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10523             Alan Hayward  <alan.hayward@arm.com>
10524             David Sherwood  <david.sherwood@arm.com>
10525
10526         * mode-classes.def (MODE_VECTOR_BOOL): New mode class.
10527         * machmode.h (INTEGRAL_MODE_P, VECTOR_MODE_P): Return true
10528         for MODE_VECTOR_BOOL.
10529         * machmode.def (VECTOR_BOOL_MODE): Document.
10530         * genmodes.c (VECTOR_BOOL_MODE): New macro.
10531         (make_vector_bool_mode): New function.
10532         (complete_mode, emit_mode_wider, emit_mode_adjustments): Handle
10533         MODE_VECTOR_BOOL.
10534         * lto-streamer-in.c (lto_input_mode_table): Likewise.
10535         * rtx-vector-builder.c (rtx_vector_builder::find_cached_value):
10536         Likewise.
10537         * stor-layout.c (int_mode_for_mode): Likewise.
10538         * tree.c (build_vector_type_for_mode): Likewise.
10539         * varasm.c (output_constant_pool_2): Likewise.
10540         * emit-rtl.c (init_emit_once): Make sure that CONST1_RTX (BImode) and
10541         CONSTM1_RTX (BImode) are the same thing.  Initialize const_tiny_rtx
10542         for MODE_VECTOR_BOOL.
10543         * expr.c (expand_expr_real_1): Use VECTOR_MODE_P instead of a list
10544         of mode class checks.
10545         * tree-vect-generic.c (expand_vector_operation): Use VECTOR_MODE_P
10546         instead of a list of mode class checks.
10547         (expand_vector_scalar_condition): Likewise.
10548         (type_for_widest_vector_mode): Handle BImode as an inner mode.
10549
10550 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10551             Alan Hayward  <alan.hayward@arm.com>
10552             David Sherwood  <david.sherwood@arm.com>
10553
10554         * machmode.h (mode_size): Change from unsigned short to
10555         poly_uint16_pod.
10556         (mode_to_bytes): Return a poly_uint16 rather than an unsigned short.
10557         (GET_MODE_SIZE): Return a constant if ONLY_FIXED_SIZE_MODES,
10558         or if measurement_type is not polynomial.
10559         (fixed_size_mode::includes_p): Check for constant-sized modes.
10560         * genmodes.c (emit_mode_size_inline): Make mode_size_inline
10561         return a poly_uint16 rather than an unsigned short.
10562         (emit_mode_size): Change the type of mode_size from unsigned short
10563         to poly_uint16_pod.  Use ZERO_COEFFS for the initializer.
10564         (emit_mode_adjustments): Cope with polynomial vector sizes.
10565         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
10566         for GET_MODE_SIZE.
10567         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
10568         for GET_MODE_SIZE.
10569         * auto-inc-dec.c (try_merge): Treat GET_MODE_SIZE as polynomial.
10570         * builtins.c (expand_ifn_atomic_compare_exchange_into_call): Likewise.
10571         * caller-save.c (setup_save_areas): Likewise.
10572         (replace_reg_with_saved_mem): Likewise.
10573         * calls.c (emit_library_call_value_1): Likewise.
10574         * combine-stack-adj.c (combine_stack_adjustments_for_block): Likewise.
10575         * combine.c (simplify_set, make_extraction, simplify_shift_const_1)
10576         (gen_lowpart_for_combine): Likewise.
10577         * convert.c (convert_to_integer_1): Likewise.
10578         * cse.c (equiv_constant, cse_insn): Likewise.
10579         * cselib.c (autoinc_split, cselib_hash_rtx): Likewise.
10580         (cselib_subst_to_values): Likewise.
10581         * dce.c (word_dce_process_block): Likewise.
10582         * df-problems.c (df_word_lr_mark_ref): Likewise.
10583         * dwarf2cfi.c (init_one_dwarf_reg_size): Likewise.
10584         * dwarf2out.c (multiple_reg_loc_descriptor, mem_loc_descriptor)
10585         (concat_loc_descriptor, concatn_loc_descriptor, loc_descriptor)
10586         (rtl_for_decl_location): Likewise.
10587         * emit-rtl.c (gen_highpart, widen_memory_access): Likewise.
10588         * expmed.c (extract_bit_field_1, extract_integral_bit_field): Likewise.
10589         * expr.c (emit_group_load_1, clear_storage_hints): Likewise.
10590         (emit_move_complex, emit_move_multi_word, emit_push_insn): Likewise.
10591         (expand_expr_real_1): Likewise.
10592         * function.c (assign_parm_setup_block_p, assign_parm_setup_block)
10593         (pad_below): Likewise.
10594         * gimple-fold.c (optimize_atomic_compare_exchange_p): Likewise.
10595         * gimple-ssa-store-merging.c (rhs_valid_for_store_merging_p): Likewise.
10596         * ira.c (get_subreg_tracking_sizes): Likewise.
10597         * ira-build.c (ira_create_allocno_objects): Likewise.
10598         * ira-color.c (coalesced_pseudo_reg_slot_compare): Likewise.
10599         (ira_sort_regnos_for_alter_reg): Likewise.
10600         * ira-costs.c (record_operand_costs): Likewise.
10601         * lower-subreg.c (interesting_mode_p, simplify_gen_subreg_concatn)
10602         (resolve_simple_move): Likewise.
10603         * lra-constraints.c (get_reload_reg, operands_match_p): Likewise.
10604         (process_addr_reg, simplify_operand_subreg, curr_insn_transform)
10605         (lra_constraints): Likewise.
10606         (CONST_POOL_OK_P): Reject variable-sized modes.
10607         * lra-spills.c (slot, assign_mem_slot, pseudo_reg_slot_compare)
10608         (add_pseudo_to_slot, lra_spill): Likewise.
10609         * omp-low.c (omp_clause_aligned_alignment): Likewise.
10610         * optabs-query.c (get_best_extraction_insn): Likewise.
10611         * optabs-tree.c (expand_vec_cond_expr_p): Likewise.
10612         * optabs.c (expand_vec_perm_var, expand_vec_cond_expr): Likewise.
10613         (expand_mult_highpart, valid_multiword_target_p): Likewise.
10614         * recog.c (offsettable_address_addr_space_p): Likewise.
10615         * regcprop.c (maybe_mode_change): Likewise.
10616         * reginfo.c (choose_hard_reg_mode, record_subregs_of_mode): Likewise.
10617         * regrename.c (build_def_use): Likewise.
10618         * regstat.c (dump_reg_info): Likewise.
10619         * reload.c (complex_word_subreg_p, push_reload, find_dummy_reload)
10620         (find_reloads, find_reloads_subreg_address): Likewise.
10621         * reload1.c (eliminate_regs_1): Likewise.
10622         * rtlanal.c (for_each_inc_dec_find_inc_dec, rtx_cost): Likewise.
10623         * simplify-rtx.c (avoid_constant_pool_reference): Likewise.
10624         (simplify_binary_operation_1, simplify_subreg): Likewise.
10625         * targhooks.c (default_function_arg_padding): Likewise.
10626         (default_hard_regno_nregs, default_class_max_nregs): Likewise.
10627         * tree-cfg.c (verify_gimple_assign_binary): Likewise.
10628         (verify_gimple_assign_ternary): Likewise.
10629         * tree-inline.c (estimate_move_cost): Likewise.
10630         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
10631         * tree-ssa-loop-ivopts.c (add_autoinc_candidates): Likewise.
10632         (get_address_cost_ainc): Likewise.
10633         * tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Likewise.
10634         (vect_supportable_dr_alignment): Likewise.
10635         * tree-vect-loop.c (vect_determine_vectorization_factor): Likewise.
10636         (vectorizable_reduction): Likewise.
10637         * tree-vect-stmts.c (vectorizable_assignment, vectorizable_shift)
10638         (vectorizable_operation, vectorizable_load): Likewise.
10639         * tree.c (build_same_sized_truth_vector_type): Likewise.
10640         * valtrack.c (cleanup_auto_inc_dec): Likewise.
10641         * var-tracking.c (emit_note_insn_var_location): Likewise.
10642         * config/arc/arc.h (ASM_OUTPUT_CASE_END): Use as_a <scalar_int_mode>.
10643         (ADDR_VEC_ALIGN): Likewise.
10644
10645 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10646             Alan Hayward  <alan.hayward@arm.com>
10647             David Sherwood  <david.sherwood@arm.com>
10648
10649         * machmode.h (mode_to_bits): Return a poly_uint16 rather than an
10650         unsigned short.
10651         (GET_MODE_BITSIZE): Return a constant if ONLY_FIXED_SIZE_MODES,
10652         or if measurement_type is polynomial.
10653         * calls.c (shift_return_value): Treat GET_MODE_BITSIZE as polynomial.
10654         * combine.c (make_extraction): Likewise.
10655         * dse.c (find_shift_sequence): Likewise.
10656         * dwarf2out.c (mem_loc_descriptor): Likewise.
10657         * expmed.c (store_integral_bit_field, extract_bit_field_1): Likewise.
10658         (extract_bit_field, extract_low_bits): Likewise.
10659         * expr.c (convert_move, convert_modes, emit_move_insn_1): Likewise.
10660         (optimize_bitfield_assignment_op, expand_assignment): Likewise.
10661         (store_expr_with_bounds, store_field, expand_expr_real_1): Likewise.
10662         * fold-const.c (optimize_bit_field_compare, merge_ranges): Likewise.
10663         * gimple-fold.c (optimize_atomic_compare_exchange_p): Likewise.
10664         * reload.c (find_reloads): Likewise.
10665         * reload1.c (alter_reg): Likewise.
10666         * stor-layout.c (bitwise_mode_for_mode, compute_record_mode): Likewise.
10667         * targhooks.c (default_secondary_memory_needed_mode): Likewise.
10668         * tree-if-conv.c (predicate_mem_writes): Likewise.
10669         * tree-ssa-strlen.c (handle_builtin_memcmp): Likewise.
10670         * tree-vect-patterns.c (adjust_bool_pattern): Likewise.
10671         * tree-vect-stmts.c (vectorizable_simd_clone_call): Likewise.
10672         * valtrack.c (dead_debug_insert_temp): Likewise.
10673         * varasm.c (mergeable_constant_section): Likewise.
10674         * config/sh/sh.h (LOCAL_ALIGNMENT): Use as_a <fixed_size_mode>.
10675
10676 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10677             Alan Hayward  <alan.hayward@arm.com>
10678             David Sherwood  <david.sherwood@arm.com>
10679
10680         * expr.c (expand_assignment): Cope with polynomial mode sizes
10681         when assigning to a CONCAT.
10682
10683 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10684             Alan Hayward  <alan.hayward@arm.com>
10685             David Sherwood  <david.sherwood@arm.com>
10686
10687         * machmode.h (mode_precision): Change from unsigned short to
10688         poly_uint16_pod.
10689         (mode_to_precision): Return a poly_uint16 rather than an unsigned
10690         short.
10691         (GET_MODE_PRECISION): Return a constant if ONLY_FIXED_SIZE_MODES,
10692         or if measurement_type is not polynomial.
10693         (HWI_COMPUTABLE_MODE_P): Turn into a function.  Optimize the case
10694         in which the mode is already known to be a scalar_int_mode.
10695         * genmodes.c (emit_mode_precision): Change the type of mode_precision
10696         from unsigned short to poly_uint16_pod.  Use ZERO_COEFFS for the
10697         initializer.
10698         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
10699         for GET_MODE_PRECISION.
10700         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
10701         for GET_MODE_PRECISION.
10702         * combine.c (update_rsp_from_reg_equal): Treat GET_MODE_PRECISION
10703         as polynomial.
10704         (try_combine, find_split_point, combine_simplify_rtx): Likewise.
10705         (expand_field_assignment, make_extraction): Likewise.
10706         (make_compound_operation_int, record_dead_and_set_regs_1): Likewise.
10707         (get_last_value): Likewise.
10708         * convert.c (convert_to_integer_1): Likewise.
10709         * cse.c (cse_insn): Likewise.
10710         * expr.c (expand_expr_real_1): Likewise.
10711         * lra-constraints.c (simplify_operand_subreg): Likewise.
10712         * optabs-query.c (can_atomic_load_p): Likewise.
10713         * optabs.c (expand_atomic_load): Likewise.
10714         (expand_atomic_store): Likewise.
10715         * ree.c (combine_reaching_defs): Likewise.
10716         * rtl.h (partial_subreg_p, paradoxical_subreg_p): Likewise.
10717         * rtlanal.c (nonzero_bits1, lsb_bitfield_op_p): Likewise.
10718         * tree.h (type_has_mode_precision_p): Likewise.
10719         * ubsan.c (instrument_si_overflow): Likewise.
10720
10721 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10722             Alan Hayward  <alan.hayward@arm.com>
10723             David Sherwood  <david.sherwood@arm.com>
10724
10725         * tree.h (TYPE_VECTOR_SUBPARTS): Turn into a function and handle
10726         polynomial numbers of units.
10727         (SET_TYPE_VECTOR_SUBPARTS): Likewise.
10728         (valid_vector_subparts_p): New function.
10729         (build_vector_type): Remove temporary shim and take the number
10730         of units as a poly_uint64 rather than an int.
10731         (build_opaque_vector_type): Take the number of units as a
10732         poly_uint64 rather than an int.
10733         * tree.c (build_vector_from_ctor): Handle polynomial
10734         TYPE_VECTOR_SUBPARTS.
10735         (type_hash_canon_hash, type_cache_hasher::equal): Likewise.
10736         (uniform_vector_p, vector_type_mode, build_vector): Likewise.
10737         (build_vector_from_val): If the number of units is variable,
10738         use build_vec_duplicate_cst for constant operands and
10739         VEC_DUPLICATE_EXPR otherwise.
10740         (make_vector_type): Remove temporary is_constant ().
10741         (build_vector_type, build_opaque_vector_type): Take the number of
10742         units as a poly_uint64 rather than an int.
10743         (check_vector_cst): Handle polynomial TYPE_VECTOR_SUBPARTS and
10744         VECTOR_CST_NELTS.
10745         * cfgexpand.c (expand_debug_expr): Likewise.
10746         * expr.c (count_type_elements, categorize_ctor_elements_1): Likewise.
10747         (store_constructor, expand_expr_real_1): Likewise.
10748         (const_scalar_mask_from_tree): Likewise.
10749         * fold-const-call.c (fold_const_reduction): Likewise.
10750         * fold-const.c (const_binop, const_unop, fold_convert_const): Likewise.
10751         (operand_equal_p, fold_vec_perm, fold_ternary_loc): Likewise.
10752         (native_encode_vector, vec_cst_ctor_to_array): Likewise.
10753         (fold_relational_const): Likewise.
10754         (native_interpret_vector): Likewise.  Change the size from an
10755         int to an unsigned int.
10756         * gimple-fold.c (gimple_fold_stmt_to_constant_1): Handle polynomial
10757         TYPE_VECTOR_SUBPARTS.
10758         (gimple_fold_indirect_ref, gimple_build_vector): Likewise.
10759         (gimple_build_vector_from_val): Use VEC_DUPLICATE_EXPR when
10760         duplicating a non-constant operand into a variable-length vector.
10761         * hsa-brig.c (hsa_op_immed::emit_to_buffer): Handle polynomial
10762         TYPE_VECTOR_SUBPARTS and VECTOR_CST_NELTS.
10763         * ipa-icf.c (sem_variable::equals): Likewise.
10764         * match.pd: Likewise.
10765         * omp-simd-clone.c (simd_clone_subparts): Likewise.
10766         * print-tree.c (print_node): Likewise.
10767         * stor-layout.c (layout_type): Likewise.
10768         * targhooks.c (default_builtin_vectorization_cost): Likewise.
10769         * tree-cfg.c (verify_gimple_comparison): Likewise.
10770         (verify_gimple_assign_binary): Likewise.
10771         (verify_gimple_assign_ternary): Likewise.
10772         (verify_gimple_assign_single): Likewise.
10773         * tree-pretty-print.c (dump_generic_node): Likewise.
10774         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
10775         (simplify_bitfield_ref, is_combined_permutation_identity): Likewise.
10776         * tree-vect-data-refs.c (vect_permute_store_chain): Likewise.
10777         (vect_grouped_load_supported, vect_permute_load_chain): Likewise.
10778         (vect_shift_permute_load_chain): Likewise.
10779         * tree-vect-generic.c (nunits_for_known_piecewise_op): Likewise.
10780         (expand_vector_condition, optimize_vector_constructor): Likewise.
10781         (lower_vec_perm, get_compute_type): Likewise.
10782         * tree-vect-loop.c (vect_determine_vectorization_factor): Likewise.
10783         (get_initial_defs_for_reduction, vect_transform_loop): Likewise.
10784         * tree-vect-patterns.c (vect_recog_bool_pattern): Likewise.
10785         (vect_recog_mask_conversion_pattern): Likewise.
10786         * tree-vect-slp.c (vect_supported_load_permutation_p): Likewise.
10787         (vect_get_constant_vectors, vect_transform_slp_perm_load): Likewise.
10788         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
10789         (get_group_load_store_type, vectorizable_mask_load_store): Likewise.
10790         (vectorizable_bswap, simd_clone_subparts, vectorizable_assignment)
10791         (vectorizable_shift, vectorizable_operation, vectorizable_store)
10792         (vectorizable_load, vect_is_simple_cond, vectorizable_comparison)
10793         (supportable_widening_operation): Likewise.
10794         (supportable_narrowing_operation): Likewise.
10795         * tree-vector-builder.c (tree_vector_builder::binary_encoded_nelts):
10796         Likewise.
10797         * varasm.c (output_constant): Likewise.
10798
10799 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10800             Alan Hayward  <alan.hayward@arm.com>
10801             David Sherwood  <david.sherwood@arm.com>
10802
10803         * tree-vect-data-refs.c (vect_permute_store_chain): Reorganize
10804         so that both the length == 3 and length != 3 cases set up their
10805         own permute vectors.  Add comments explaining why we know the
10806         number of elements is constant.
10807         (vect_permute_load_chain): Likewise.
10808
10809 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10810             Alan Hayward  <alan.hayward@arm.com>
10811             David Sherwood  <david.sherwood@arm.com>
10812
10813         * machmode.h (mode_nunits): Change from unsigned char to
10814         poly_uint16_pod.
10815         (ONLY_FIXED_SIZE_MODES): New macro.
10816         (pod_mode::measurement_type, scalar_int_mode::measurement_type)
10817         (scalar_float_mode::measurement_type, scalar_mode::measurement_type)
10818         (complex_mode::measurement_type, fixed_size_mode::measurement_type):
10819         New typedefs.
10820         (mode_to_nunits): Return a poly_uint16 rather than an unsigned short.
10821         (GET_MODE_NUNITS): Return a constant if ONLY_FIXED_SIZE_MODES,
10822         or if measurement_type is not polynomial.
10823         * genmodes.c (ZERO_COEFFS): New macro.
10824         (emit_mode_nunits_inline): Make mode_nunits_inline return a
10825         poly_uint16.
10826         (emit_mode_nunits): Change the type of mode_nunits to poly_uint16_pod.
10827         Use ZERO_COEFFS when emitting initializers.
10828         * data-streamer.h (bp_pack_poly_value): New function.
10829         (bp_unpack_poly_value): Likewise.
10830         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
10831         for GET_MODE_NUNITS.
10832         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
10833         for GET_MODE_NUNITS.
10834         * tree.c (make_vector_type): Remove temporary shim and make
10835         the real function take the number of units as a poly_uint64
10836         rather than an int.
10837         (build_vector_type_for_mode): Handle polynomial nunits.
10838         * dwarf2out.c (loc_descriptor, add_const_value_attribute): Likewise.
10839         * emit-rtl.c (const_vec_series_p_1): Likewise.
10840         (gen_rtx_CONST_VECTOR): Likewise.
10841         * fold-const.c (test_vec_duplicate_folding): Likewise.
10842         * genrecog.c (validate_pattern): Likewise.
10843         * optabs-query.c (can_vec_perm_var_p, can_mult_highpart_p): Likewise.
10844         * optabs-tree.c (expand_vec_cond_expr_p): Likewise.
10845         * optabs.c (expand_vector_broadcast, expand_binop_directly): Likewise.
10846         (shift_amt_for_vec_perm_mask, expand_vec_perm_var): Likewise.
10847         (expand_vec_cond_expr, expand_mult_highpart): Likewise.
10848         * rtlanal.c (subreg_get_info): Likewise.
10849         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
10850         (vect_grouped_load_supported): Likewise.
10851         * tree-vect-generic.c (type_for_widest_vector_mode): Likewise.
10852         * tree-vect-loop.c (have_whole_vector_shift): Likewise.
10853         * simplify-rtx.c (simplify_unary_operation_1): Likewise.
10854         (simplify_const_unary_operation, simplify_binary_operation_1)
10855         (simplify_const_binary_operation, simplify_ternary_operation)
10856         (test_vector_ops_duplicate, test_vector_ops): Likewise.
10857         (simplify_immed_subreg): Use GET_MODE_NUNITS on a fixed_size_mode
10858         instead of CONST_VECTOR_NUNITS.
10859         * varasm.c (output_constant_pool_2): Likewise.
10860         * rtx-vector-builder.c (rtx_vector_builder::build): Only include the
10861         explicit-encoded elements in the XVEC for variable-length vectors.
10862
10863 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10864
10865         * lra-constraints.c (curr_insn_transform): Use partial_subreg_p.
10866
10867 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10868             Alan Hayward  <alan.hayward@arm.com>
10869             David Sherwood  <david.sherwood@arm.com>
10870
10871         * coretypes.h (fixed_size_mode): Declare.
10872         (fixed_size_mode_pod): New typedef.
10873         * builtins.h (target_builtins::x_apply_args_mode)
10874         (target_builtins::x_apply_result_mode): Change type to
10875         fixed_size_mode_pod.
10876         * builtins.c (apply_args_size, apply_result_size, result_vector)
10877         (expand_builtin_apply_args_1, expand_builtin_apply)
10878         (expand_builtin_return): Update accordingly.
10879
10880 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10881
10882         * cse.c (hash_rtx_cb): Hash only the encoded elements.
10883         * cselib.c (cselib_hash_rtx): Likewise.
10884         * expmed.c (make_tree): Build VECTOR_CSTs directly from the
10885         CONST_VECTOR encoding.
10886
10887 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
10888             Jeff Law  <law@redhat.com>
10889
10890         PR target/83641
10891         * config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): For
10892         noreturn probe, use gen_pop instead of ix86_emit_restore_reg_using_pop,
10893         only set RTX_FRAME_RELATED_P on both the push and pop if cfa_reg is sp
10894         and add REG_CFA_ADJUST_CFA notes in that case to both insns.
10895
10896         PR target/83641
10897         * config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): Do not
10898         explicitly probe *sp in a noreturn function if there were any callee
10899         register saves or frame pointer is needed.
10900
10901 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
10902
10903         PR debug/83621
10904         * cfgexpand.c (expand_debug_expr): Return NULL if mode is
10905         BLKmode for ternary, binary or unary expressions.
10906
10907         PR debug/83645
10908         * var-tracking.c (delete_vta_debug_insn): New inline function.
10909         (delete_vta_debug_insns): Add USE_CFG argument, if true, walk just
10910         insns from get_insns () to NULL instead of each bb separately.
10911         Use delete_vta_debug_insn.  No longer static.
10912         (vt_debug_insns_local, variable_tracking_main_1): Adjust
10913         delete_vta_debug_insns callers.
10914         * rtl.h (delete_vta_debug_insns): Declare.
10915         * final.c (rest_of_handle_final): Call delete_vta_debug_insns
10916         instead of variable_tracking_main.
10917
10918 2018-01-03  Martin Sebor  <msebor@redhat.com>
10919
10920         PR tree-optimization/83603
10921         * calls.c (maybe_warn_nonstring_arg): Avoid accessing function
10922         arguments past the endof the argument list in functions declared
10923         without a prototype.
10924         * gimple-ssa-warn-restrict.c (wrestrict_dom_walker::check_call):
10925         Avoid checking when arguments are null.
10926
10927 2018-01-03  Martin Sebor  <msebor@redhat.com>
10928
10929         PR c/83559
10930         * doc/extend.texi (attribute const): Fix a typo.
10931         * ipa-pure-const.c ((warn_function_const, warn_function_pure): Avoid
10932         issuing -Wsuggest-attribute for void functions.
10933
10934 2018-01-03  Martin Sebor  <msebor@redhat.com>
10935
10936         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Use
10937         offset_int::from instead of wide_int::to_shwi.
10938         (maybe_diag_overlap): Remove assertion.
10939         Use HOST_WIDE_INT_PRINT_DEC instead of %lli.
10940         * gimple-ssa-sprintf.c (format_directive): Same.
10941         (parse_directive): Same.
10942         (sprintf_dom_walker::compute_format_length): Same.
10943         (try_substitute_return_value): Same.
10944
10945 2018-01-03  Jeff Law  <law@redhat.com>
10946
10947         PR middle-end/83654
10948         * explow.c (anti_adjust_stack_and_probe_stack_clash): Test a
10949         non-constant residual for zero at runtime and avoid probing in
10950         that case.  Reorganize code for trailing problem to mirror handling
10951         of the residual.
10952
10953 2018-01-03  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
10954
10955         PR tree-optimization/83501
10956         * tree-ssa-strlen.c (get_string_cst): New.
10957         (handle_char_store): Call get_string_cst.
10958
10959 2018-01-03  Martin Liska  <mliska@suse.cz>
10960
10961         PR tree-optimization/83593
10962         * tree-ssa-strlen.c: Include tree-cfg.h.
10963         (strlen_check_and_optimize_stmt): Add new argument cleanup_eh.
10964         (strlen_dom_walker): Add new member variable m_cleanup_cfg.
10965         (strlen_dom_walker::strlen_dom_walker): Initialize m_cleanup_cfg
10966         to false.
10967         (strlen_dom_walker::before_dom_children): Call
10968         gimple_purge_dead_eh_edges. Dump tranformation with details
10969         dump flags.
10970         (strlen_dom_walker::before_dom_children): Update call by adding
10971         new argument cleanup_eh.
10972         (pass_strlen::execute): Return TODO_cleanup_cfg if needed.
10973
10974 2018-01-03  Martin Liska  <mliska@suse.cz>
10975
10976         PR ipa/83549
10977         * cif-code.def (VARIADIC_THUNK): New enum value.
10978         * ipa-fnsummary.c (compute_fn_summary): Do not inline variadic
10979         thunks.
10980
10981 2018-01-03  Jan Beulich  <jbeulich@suse.com>
10982
10983         * sse.md (mov<mode>_internal): Tighten condition for when to use
10984         vmovdqu<ssescalarsize> for TI and OI modes.
10985
10986 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
10987
10988         Update copyright years.
10989
10990 2018-01-03  Martin Liska  <mliska@suse.cz>
10991
10992         PR ipa/83594
10993         * ipa-visibility.c (function_and_variable_visibility): Skip
10994         functions with noipa attribure.
10995
10996 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
10997
10998         * gcc.c (process_command): Update copyright notice dates.
10999         * gcov-dump.c (print_version): Ditto.
11000         * gcov.c (print_version): Ditto.
11001         * gcov-tool.c (print_version): Ditto.
11002         * gengtype.c (create_file): Ditto.
11003         * doc/cpp.texi: Bump @copying's copyright year.
11004         * doc/cppinternals.texi: Ditto.
11005         * doc/gcc.texi: Ditto.
11006         * doc/gccint.texi: Ditto.
11007         * doc/gcov.texi: Ditto.
11008         * doc/install.texi: Ditto.
11009         * doc/invoke.texi: Ditto.
11010
11011 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11012
11013         * vector-builder.h (vector_builder::m_full_nelts): Change from
11014         unsigned int to poly_uint64.
11015         (vector_builder::full_nelts): Update prototype accordingly.
11016         (vector_builder::new_vector): Likewise.
11017         (vector_builder::encoded_full_vector_p): Handle polynomial full_nelts.
11018         (vector_builder::operator ==): Likewise.
11019         (vector_builder::finalize): Likewise.
11020         * int-vector-builder.h (int_vector_builder::int_vector_builder):
11021         Take the number of elements as a poly_uint64 rather than an
11022         unsigned int.
11023         * vec-perm-indices.h (vec_perm_indices::m_nelts_per_input): Change
11024         from unsigned int to poly_uint64.
11025         (vec_perm_indices::vec_perm_indices): Update prototype accordingly.
11026         (vec_perm_indices::new_vector): Likewise.
11027         (vec_perm_indices::length): Likewise.
11028         (vec_perm_indices::nelts_per_input): Likewise.
11029         (vec_perm_indices::input_nelts): Likewise.
11030         * vec-perm-indices.c (vec_perm_indices::new_vector): Take the
11031         number of elements per input as a poly_uint64 rather than an
11032         unsigned int.  Use the original encoding for variable-length
11033         vectors, rather than clamping each individual element.
11034         For the second and subsequent elements in each pattern,
11035         clamp the step and base before clamping their sum.
11036         (vec_perm_indices::series_p): Handle polynomial element counts.
11037         (vec_perm_indices::all_in_range_p): Likewise.
11038         (vec_perm_indices_to_tree): Likewise.
11039         (vec_perm_indices_to_rtx): Likewise.
11040         * tree-vect-stmts.c (vect_gen_perm_mask_any): Likewise.
11041         * tree-vector-builder.c (tree_vector_builder::new_unary_operation)
11042         (tree_vector_builder::new_binary_operation): Handle polynomial
11043         element counts.  Return false if we need to know the number
11044         of elements at compile time.
11045         * fold-const.c (fold_vec_perm): Punt if the number of elements
11046         isn't known at compile time.
11047
11048 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11049
11050         * vec-perm-indices.h (vec_perm_builder): Change element type
11051         from HOST_WIDE_INT to poly_int64.
11052         (vec_perm_indices::element_type): Update accordingly.
11053         (vec_perm_indices::clamp): Handle polynomial element_types.
11054         * vec-perm-indices.c (vec_perm_indices::series_p): Likewise.
11055         (vec_perm_indices::all_in_range_p): Likewise.
11056         (tree_to_vec_perm_builder): Check for poly_int64 trees rather
11057         than shwi trees.
11058         * vector-builder.h (vector_builder::stepped_sequence_p): Handle
11059         polynomial vec_perm_indices element types.
11060         * int-vector-builder.h (int_vector_builder::equal_p): Likewise.
11061         * fold-const.c (fold_vec_perm): Likewise.
11062         * optabs.c (shift_amt_for_vec_perm_mask): Likewise.
11063         * tree-vect-generic.c (lower_vec_perm): Likewise.
11064         * tree-vect-slp.c (vect_transform_slp_perm_load): Likewise.
11065         * config/aarch64/aarch64.c (aarch64_evpc_tbl): Cast d->perm
11066         element type to HOST_WIDE_INT.
11067
11068 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11069             Alan Hayward  <alan.hayward@arm.com>
11070             David Sherwood  <david.sherwood@arm.com>
11071
11072         * alias.c (addr_side_effect_eval): Take the size as a poly_int64
11073         rather than an int.  Use plus_constant.
11074         (memrefs_conflict_p): Take the sizes as poly_int64s rather than ints.
11075         Take the offset "c" as a poly_int64 rather than a HOST_WIDE_INT.
11076
11077 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11078             Alan Hayward  <alan.hayward@arm.com>
11079             David Sherwood  <david.sherwood@arm.com>
11080
11081         * calls.c (emit_call_1, expand_call): Change struct_value_size from
11082         a HOST_WIDE_INT to a poly_int64.
11083
11084 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11085             Alan Hayward  <alan.hayward@arm.com>
11086             David Sherwood  <david.sherwood@arm.com>
11087
11088         * calls.c (load_register_parameters): Cope with polynomial
11089         mode sizes.  Require a constant size for BLKmode parameters
11090         that aren't described by a PARALLEL.  If BLOCK_REG_PADDING
11091         forces a parameter to be padded at the lsb end in order to
11092         fill a complete number of words, require the parameter size
11093         to be ordered wrt UNITS_PER_WORD.
11094
11095 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11096             Alan Hayward  <alan.hayward@arm.com>
11097             David Sherwood  <david.sherwood@arm.com>
11098
11099         * reload1.c (spill_stack_slot_width): Change element type
11100         from unsigned int to poly_uint64_pod.
11101         (alter_reg): Treat mode sizes as polynomial.
11102
11103 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11104             Alan Hayward  <alan.hayward@arm.com>
11105             David Sherwood  <david.sherwood@arm.com>
11106
11107         * reload.c (complex_word_subreg_p): New function.
11108         (reload_inner_reg_of_subreg, push_reload): Use it.
11109
11110 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11111             Alan Hayward  <alan.hayward@arm.com>
11112             David Sherwood  <david.sherwood@arm.com>
11113
11114         * lra-constraints.c (process_alt_operands): Reject matched
11115         operands whose sizes aren't ordered.
11116         (match_reload): Refer to this check here.
11117
11118 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11119             Alan Hayward  <alan.hayward@arm.com>
11120             David Sherwood  <david.sherwood@arm.com>
11121
11122         * builtins.c (expand_ifn_atomic_compare_exchange_into_call): Assert
11123         that the mode size is in the set {1, 2, 4, 8, 16}.
11124
11125 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11126             Alan Hayward  <alan.hayward@arm.com>
11127             David Sherwood  <david.sherwood@arm.com>
11128
11129         * var-tracking.c (adjust_mems): Treat mode sizes as polynomial.
11130         Use plus_constant instead of gen_rtx_PLUS.
11131
11132 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11133             Alan Hayward  <alan.hayward@arm.com>
11134             David Sherwood  <david.sherwood@arm.com>
11135
11136         * config/cr16/cr16-protos.h (cr16_push_rounding): Declare.
11137         * config/cr16/cr16.h (PUSH_ROUNDING): Move implementation to...
11138         * config/cr16/cr16.c (cr16_push_rounding): ...this new function.
11139         * config/h8300/h8300-protos.h (h8300_push_rounding): Declare.
11140         * config/h8300/h8300.h (PUSH_ROUNDING): Move implementation to...
11141         * config/h8300/h8300.c (h8300_push_rounding): ...this new function.
11142         * config/i386/i386-protos.h (ix86_push_rounding): Declare.
11143         * config/i386/i386.h (PUSH_ROUNDING): Move implementation to...
11144         * config/i386/i386.c (ix86_push_rounding): ...this new function.
11145         * config/m32c/m32c-protos.h (m32c_push_rounding): Take and return
11146         a poly_int64.
11147         * config/m32c/m32c.c (m32c_push_rounding): Likewise.
11148         * config/m68k/m68k-protos.h (m68k_push_rounding): Declare.
11149         * config/m68k/m68k.h (PUSH_ROUNDING): Move implementation to...
11150         * config/m68k/m68k.c (m68k_push_rounding): ...this new function.
11151         * config/pdp11/pdp11-protos.h (pdp11_push_rounding): Declare.
11152         * config/pdp11/pdp11.h (PUSH_ROUNDING): Move implementation to...
11153         * config/pdp11/pdp11.c (pdp11_push_rounding): ...this new function.
11154         * config/stormy16/stormy16-protos.h (xstormy16_push_rounding): Declare.
11155         * config/stormy16/stormy16.h (PUSH_ROUNDING): Move implementation to...
11156         * config/stormy16/stormy16.c (xstormy16_push_rounding): ...this new
11157         function.
11158         * expr.c (emit_move_resolve_push): Treat the input and result
11159         of PUSH_ROUNDING as a poly_int64.
11160         (emit_move_complex_push, emit_single_push_insn_1): Likewise.
11161         (emit_push_insn): Likewise.
11162         * lra-eliminations.c (mark_not_eliminable): Likewise.
11163         * recog.c (push_operand): Likewise.
11164         * reload1.c (elimination_effects): Likewise.
11165         * rtlanal.c (nonzero_bits1): Likewise.
11166         * calls.c (store_one_arg): Likewise.  Require the padding to be
11167         known at compile time.
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         * expr.c (emit_single_push_insn_1): Treat mode sizes as polynomial.
11174         Use plus_constant instead of gen_rtx_PLUS.
11175
11176 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11177             Alan Hayward  <alan.hayward@arm.com>
11178             David Sherwood  <david.sherwood@arm.com>
11179
11180         * auto-inc-dec.c (set_inc_state): Take the mode size as a poly_int64
11181         rather than an int.
11182
11183 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11184             Alan Hayward  <alan.hayward@arm.com>
11185             David Sherwood  <david.sherwood@arm.com>
11186
11187         * expr.c (expand_expr_real_1): Use tree_to_poly_uint64
11188         instead of int_size_in_bytes when handling VIEW_CONVERT_EXPRs
11189         via stack temporaries.  Treat the mode size as polynomial too.
11190
11191 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11192             Alan Hayward  <alan.hayward@arm.com>
11193             David Sherwood  <david.sherwood@arm.com>
11194
11195         * expr.c (expand_expr_real_2): When handling conversions involving
11196         unions, apply tree_to_poly_uint64 to the TYPE_SIZE rather than
11197         multiplying int_size_in_bytes by BITS_PER_UNIT.  Treat GET_MODE_BISIZE
11198         as a poly_uint64 too.
11199
11200 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11201             Alan Hayward  <alan.hayward@arm.com>
11202             David Sherwood  <david.sherwood@arm.com>
11203
11204         * rtlanal.c (subreg_get_info): Handle polynomial mode sizes.
11205
11206 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11207             Alan Hayward  <alan.hayward@arm.com>
11208             David Sherwood  <david.sherwood@arm.com>
11209
11210         * combine.c (can_change_dest_mode): Handle polynomial
11211         REGMODE_NATURAL_SIZE.
11212         * expmed.c (store_bit_field_1): Likewise.
11213         * expr.c (store_constructor): Likewise.
11214         * emit-rtl.c (validate_subreg): Operate on polynomial mode sizes
11215         and polynomial REGMODE_NATURAL_SIZE.
11216         (gen_lowpart_common): Likewise.
11217         * reginfo.c (record_subregs_of_mode): Likewise.
11218         * rtlanal.c (read_modify_subreg_p): Likewise.
11219
11220 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11221             Alan Hayward  <alan.hayward@arm.com>
11222             David Sherwood  <david.sherwood@arm.com>
11223
11224         * internal-fn.c (expand_vector_ubsan_overflow): Handle polynomial
11225         numbers of elements.
11226
11227 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11228             Alan Hayward  <alan.hayward@arm.com>
11229             David Sherwood  <david.sherwood@arm.com>
11230
11231         * match.pd: Cope with polynomial numbers of vector elements.
11232
11233 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11234             Alan Hayward  <alan.hayward@arm.com>
11235             David Sherwood  <david.sherwood@arm.com>
11236
11237         * fold-const.c (fold_indirect_ref_1): Handle polynomial offsets
11238         in a POINTER_PLUS_EXPR.
11239
11240 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11241             Alan Hayward  <alan.hayward@arm.com>
11242             David Sherwood  <david.sherwood@arm.com>
11243
11244         * omp-simd-clone.c (simd_clone_subparts): New function.
11245         (simd_clone_init_simd_arrays): Use it instead of TYPE_VECTOR_SUBPARTS.
11246         (ipa_simd_modify_function_body): Likewise.
11247
11248 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11249             Alan Hayward  <alan.hayward@arm.com>
11250             David Sherwood  <david.sherwood@arm.com>
11251
11252         * tree-vect-generic.c (nunits_for_known_piecewise_op): New function.
11253         (expand_vector_piecewise): Use it instead of TYPE_VECTOR_SUBPARTS.
11254         (expand_vector_addition, add_rshift, expand_vector_divmod): Likewise.
11255         (expand_vector_condition, vector_element): Likewise.
11256         (subparts_gt): New function.
11257         (get_compute_type): Use subparts_gt.
11258         (count_type_subparts): Delete.
11259         (expand_vector_operations_1): Use subparts_gt instead of
11260         count_type_subparts.
11261
11262 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11263             Alan Hayward  <alan.hayward@arm.com>
11264             David Sherwood  <david.sherwood@arm.com>
11265
11266         * tree-vect-data-refs.c (vect_no_alias_p): Replace with...
11267         (vect_compile_time_alias): ...this new function.  Do the calculation
11268         on poly_ints rather than trees.
11269         (vect_prune_runtime_alias_test_list): Update call accordingly.
11270
11271 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11272             Alan Hayward  <alan.hayward@arm.com>
11273             David Sherwood  <david.sherwood@arm.com>
11274
11275         * tree-vect-slp.c (vect_build_slp_tree_1): Handle polynomial
11276         numbers of units.
11277         (vect_schedule_slp_instance): Likewise.
11278
11279 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11280             Alan Hayward  <alan.hayward@arm.com>
11281             David Sherwood  <david.sherwood@arm.com>
11282
11283         * tree-vect-slp.c (vect_get_and_check_slp_defs): Reject
11284         constant and extern definitions for variable-length vectors.
11285         (vect_get_constant_vectors): Note that the number of units
11286         is known to be constant.
11287
11288 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11289             Alan Hayward  <alan.hayward@arm.com>
11290             David Sherwood  <david.sherwood@arm.com>
11291
11292         * tree-vect-stmts.c (vectorizable_conversion): Treat the number
11293         of units as polynomial.  Choose between WIDE and NARROW based
11294         on multiple_p.
11295
11296 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11297             Alan Hayward  <alan.hayward@arm.com>
11298             David Sherwood  <david.sherwood@arm.com>
11299
11300         * tree-vect-stmts.c (simd_clone_subparts): New function.
11301         (vectorizable_simd_clone_call): Use it instead of TYPE_VECTOR_SUBPARTS.
11302
11303 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11304             Alan Hayward  <alan.hayward@arm.com>
11305             David Sherwood  <david.sherwood@arm.com>
11306
11307         * tree-vect-stmts.c (vectorizable_call): Treat the number of
11308         vectors as polynomial.  Use build_index_vector for
11309         IFN_GOMP_SIMD_LANE.
11310
11311 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11312             Alan Hayward  <alan.hayward@arm.com>
11313             David Sherwood  <david.sherwood@arm.com>
11314
11315         * tree-vect-stmts.c (get_load_store_type): Treat the number of
11316         units as polynomial.  Reject VMAT_ELEMENTWISE and VMAT_STRIDED_SLP
11317         for variable-length vectors.
11318         (vectorizable_mask_load_store): Treat the number of units as
11319         polynomial, asserting that it is constant if the condition has
11320         already been enforced.
11321         (vectorizable_store, vectorizable_load): Likewise.
11322
11323 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11324             Alan Hayward  <alan.hayward@arm.com>
11325             David Sherwood  <david.sherwood@arm.com>
11326
11327         * tree-vect-loop.c (vectorizable_live_operation): Treat the number
11328         of units as polynomial.  Punt if we can't tell at compile time
11329         which vector contains the final result.
11330
11331 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11332             Alan Hayward  <alan.hayward@arm.com>
11333             David Sherwood  <david.sherwood@arm.com>
11334
11335         * tree-vect-loop.c (vectorizable_induction): Treat the number
11336         of units as polynomial.  Punt on SLP inductions.  Use an integer
11337         VEC_SERIES_EXPR for variable-length integer reductions.  Use a
11338         cast of such a series for variable-length floating-point
11339         reductions.
11340
11341 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11342             Alan Hayward  <alan.hayward@arm.com>
11343             David Sherwood  <david.sherwood@arm.com>
11344
11345         * tree.h (build_index_vector): Declare.
11346         * tree.c (build_index_vector): New function.
11347         * tree-vect-loop.c (get_initial_defs_for_reduction): Treat the number
11348         of units as polynomial, forcibly converting it to a constant if
11349         vectorizable_reduction has already enforced the condition.
11350         (vect_create_epilog_for_reduction): Likewise.  Use build_index_vector
11351         to create a {1,2,3,...} vector.
11352         (vectorizable_reduction): Treat the number of units as polynomial.
11353         Choose vectype_in based on the largest scalar element size rather
11354         than the smallest number of units.  Enforce the restrictions
11355         relied on above.
11356
11357 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11358             Alan Hayward  <alan.hayward@arm.com>
11359             David Sherwood  <david.sherwood@arm.com>
11360
11361         * tree-vect-data-refs.c (vector_alignment_reachable_p): Treat the
11362         number of units as polynomial.
11363
11364 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11365             Alan Hayward  <alan.hayward@arm.com>
11366             David Sherwood  <david.sherwood@arm.com>
11367
11368         * target.h (vector_sizes, auto_vector_sizes): New typedefs.
11369         * target.def (autovectorize_vector_sizes): Return the vector sizes
11370         by pointer, using vector_sizes rather than a bitmask.
11371         * targhooks.h (default_autovectorize_vector_sizes): Update accordingly.
11372         * targhooks.c (default_autovectorize_vector_sizes): Likewise.
11373         * config/aarch64/aarch64.c (aarch64_autovectorize_vector_sizes):
11374         Likewise.
11375         * config/arc/arc.c (arc_autovectorize_vector_sizes): Likewise.
11376         * config/arm/arm.c (arm_autovectorize_vector_sizes): Likewise.
11377         * config/i386/i386.c (ix86_autovectorize_vector_sizes): Likewise.
11378         * config/mips/mips.c (mips_autovectorize_vector_sizes): Likewise.
11379         * omp-general.c (omp_max_vf): Likewise.
11380         * omp-low.c (omp_clause_aligned_alignment): Likewise.
11381         * optabs-query.c (can_vec_mask_load_store_p): Likewise.
11382         * tree-vect-loop.c (vect_analyze_loop): Likewise.
11383         * tree-vect-slp.c (vect_slp_bb): Likewise.
11384         * doc/tm.texi: Regenerate.
11385         * tree-vectorizer.h (current_vector_size): Change from an unsigned int
11386         to a poly_uint64.
11387         * tree-vect-stmts.c (get_vectype_for_scalar_type_and_size): Take
11388         the vector size as a poly_uint64 rather than an unsigned int.
11389         (current_vector_size): Change from an unsigned int to a poly_uint64.
11390         (get_vectype_for_scalar_type): Update accordingly.
11391         * tree.h (build_truth_vector_type): Take the size and number of
11392         units as a poly_uint64 rather than an unsigned int.
11393         (build_vector_type): Add a temporary overload that takes
11394         the number of units as a poly_uint64 rather than an unsigned int.
11395         * tree.c (make_vector_type): Likewise.
11396         (build_truth_vector_type): Take the number of units as a poly_uint64
11397         rather than an unsigned int.
11398
11399 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11400             Alan Hayward  <alan.hayward@arm.com>
11401             David Sherwood  <david.sherwood@arm.com>
11402
11403         * target.def (get_mask_mode): Take the number of units and length
11404         as poly_uint64s rather than unsigned ints.
11405         * targhooks.h (default_get_mask_mode): Update accordingly.
11406         * targhooks.c (default_get_mask_mode): Likewise.
11407         * config/i386/i386.c (ix86_get_mask_mode): Likewise.
11408         * doc/tm.texi: Regenerate.
11409
11410 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11411             Alan Hayward  <alan.hayward@arm.com>
11412             David Sherwood  <david.sherwood@arm.com>
11413
11414         * omp-general.h (omp_max_vf): Return a poly_uint64 instead of an int.
11415         * omp-general.c (omp_max_vf): Likewise.
11416         * omp-expand.c (omp_adjust_chunk_size): Update call to omp_max_vf.
11417         (expand_omp_simd): Handle polynomial safelen.
11418         * omp-low.c (omplow_simd_context): Add a default constructor.
11419         (omplow_simd_context::max_vf): Change from int to poly_uint64.
11420         (lower_rec_simd_input_clauses): Update accordingly.
11421         (lower_rec_input_clauses): Likewise.
11422
11423 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11424             Alan Hayward  <alan.hayward@arm.com>
11425             David Sherwood  <david.sherwood@arm.com>
11426
11427         * tree-vectorizer.h (vect_nunits_for_cost): New function.
11428         * tree-vect-loop.c (vect_model_reduction_cost): Use it.
11429         * tree-vect-slp.c (vect_analyze_slp_cost_1): Likewise.
11430         (vect_analyze_slp_cost): Likewise.
11431         * tree-vect-stmts.c (vect_model_store_cost): Likewise.
11432         (vect_model_load_cost): Likewise.
11433
11434 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11435             Alan Hayward  <alan.hayward@arm.com>
11436             David Sherwood  <david.sherwood@arm.com>
11437
11438         * tree-vect-slp.c (vect_record_max_nunits, vect_build_slp_tree_1)
11439         (vect_build_slp_tree_2, vect_build_slp_tree): Change max_nunits
11440         from an unsigned int * to a poly_uint64_pod *.
11441         (calculate_unrolling_factor): New function.
11442         (vect_analyze_slp_instance): Use it.  Track polynomial max_nunits.
11443
11444 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11445             Alan Hayward  <alan.hayward@arm.com>
11446             David Sherwood  <david.sherwood@arm.com>
11447
11448         * tree-vectorizer.h (_slp_instance::unrolling_factor): Change
11449         from an unsigned int to a poly_uint64.
11450         (_loop_vec_info::slp_unrolling_factor): Likewise.
11451         (_loop_vec_info::vectorization_factor): Change from an int
11452         to a poly_uint64.
11453         (MAX_VECTORIZATION_FACTOR): Bump from 64 to INT_MAX.
11454         (vect_get_num_vectors): New function.
11455         (vect_update_max_nunits, vect_vf_for_cost): Likewise.
11456         (vect_get_num_copies): Use vect_get_num_vectors.
11457         (vect_analyze_data_ref_dependences): Change max_vf from an int *
11458         to an unsigned int *.
11459         (vect_analyze_data_refs): Change min_vf from an int * to a
11460         poly_uint64 *.
11461         (vect_transform_slp_perm_load): Take the vf as a poly_uint64 rather
11462         than an unsigned HOST_WIDE_INT.
11463         * tree-vect-data-refs.c (vect_analyze_possibly_independent_ddr)
11464         (vect_analyze_data_ref_dependence): Change max_vf from an int *
11465         to an unsigned int *.
11466         (vect_analyze_data_ref_dependences): Likewise.
11467         (vect_compute_data_ref_alignment): Handle polynomial vf.
11468         (vect_enhance_data_refs_alignment): Likewise.
11469         (vect_prune_runtime_alias_test_list): Likewise.
11470         (vect_shift_permute_load_chain): Likewise.
11471         (vect_supportable_dr_alignment): Likewise.
11472         (dependence_distance_ge_vf): Take the vectorization factor as a
11473         poly_uint64 rather than an unsigned HOST_WIDE_INT.
11474         (vect_analyze_data_refs): Change min_vf from an int * to a
11475         poly_uint64 *.
11476         * tree-vect-loop-manip.c (vect_gen_scalar_loop_niters): Take
11477         vfm1 as a poly_uint64 rather than an int.  Make the same change
11478         for the returned bound_scalar.
11479         (vect_gen_vector_loop_niters): Handle polynomial vf.
11480         (vect_do_peeling): Likewise.  Update call to
11481         vect_gen_scalar_loop_niters and handle polynomial bound_scalars.
11482         (vect_gen_vector_loop_niters_mult_vf): Assert that the vf must
11483         be constant.
11484         * tree-vect-loop.c (vect_determine_vectorization_factor)
11485         (vect_update_vf_for_slp, vect_analyze_loop_2): Handle polynomial vf.
11486         (vect_get_known_peeling_cost): Likewise.
11487         (vect_estimate_min_profitable_iters, vectorizable_reduction): Likewise.
11488         (vect_worthwhile_without_simd_p, vectorizable_induction): Likewise.
11489         (vect_transform_loop): Likewise.  Use the lowest possible VF when
11490         updating the upper bounds of the loop.
11491         (vect_min_worthwhile_factor): Make static.  Return an unsigned int
11492         rather than an int.
11493         * tree-vect-slp.c (vect_attempt_slp_rearrange_stmts): Cope with
11494         polynomial unroll factors.
11495         (vect_analyze_slp_cost_1, vect_analyze_slp_instance): Likewise.
11496         (vect_make_slp_decision): Likewise.
11497         (vect_supported_load_permutation_p): Likewise, and polynomial
11498         vf too.
11499         (vect_analyze_slp_cost): Handle polynomial vf.
11500         (vect_slp_analyze_node_operations): Likewise.
11501         (vect_slp_analyze_bb_1): Likewise.
11502         (vect_transform_slp_perm_load): Take the vf as a poly_uint64 rather
11503         than an unsigned HOST_WIDE_INT.
11504         * tree-vect-stmts.c (vectorizable_simd_clone_call, vectorizable_store)
11505         (vectorizable_load): Handle polynomial vf.
11506         * tree-vectorizer.c (simduid_to_vf::vf): Change from an int to
11507         a poly_uint64.
11508         (adjust_simduid_builtins, shrink_simd_arrays): Update accordingly.
11509
11510 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11511             Alan Hayward  <alan.hayward@arm.com>
11512             David Sherwood  <david.sherwood@arm.com>
11513
11514         * match.pd: Handle bit operations involving three constants
11515         and try to fold one pair.
11516
11517 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11518
11519         * tree-vect-loop-manip.c: Include gimple-fold.h.
11520         (slpeel_make_loop_iterate_ntimes): Add step, final_iv and
11521         niters_maybe_zero parameters.  Handle other cases besides a step of 1.
11522         (vect_gen_vector_loop_niters): Add a step_vector_ptr parameter.
11523         Add a path that uses a step of VF instead of 1, but disable it
11524         for now.
11525         (vect_do_peeling): Add step_vector, niters_vector_mult_vf_var
11526         and niters_no_overflow parameters.  Update calls to
11527         slpeel_make_loop_iterate_ntimes and vect_gen_vector_loop_niters.
11528         Create a new SSA name if the latter choses to use a ste other
11529         than zero, and return it via niters_vector_mult_vf_var.
11530         * tree-vect-loop.c (vect_transform_loop): Update calls to
11531         vect_do_peeling, vect_gen_vector_loop_niters and
11532         slpeel_make_loop_iterate_ntimes.
11533         * tree-vectorizer.h (slpeel_make_loop_iterate_ntimes, vect_do_peeling)
11534         (vect_gen_vector_loop_niters): Update declarations after above changes.
11535
11536 2018-01-02  Michael Meissner  <meissner@linux.vnet.ibm.com>
11537
11538         * config/rs6000/rs6000.md (floor<mode>2): Add support for IEEE
11539         128-bit round to integer instructions.
11540         (ceil<mode>2): Likewise.
11541         (btrunc<mode>2): Likewise.
11542         (round<mode>2): Likewise.
11543
11544 2018-01-02  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
11545
11546         * config/rs6000/rs6000-string.c (expand_block_move): Allow the use of
11547         unaligned VSX load/store on P8/P9.
11548         (expand_block_clear): Allow the use of unaligned VSX
11549         load/store on P8/P9.
11550
11551 2018-01-02  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
11552
11553         * config/rs6000/rs6000-p8swap.c (swap_feeds_both_load_and_store):
11554         New function.
11555         (rs6000_analyze_swaps): Mark a web unoptimizable if it contains a
11556         swap associated with both a load and a store.
11557
11558 2018-01-02  Andrew Waterman  <andrew@sifive.com>
11559
11560         * config/riscv/linux.h (ICACHE_FLUSH_FUNC): New.
11561         * config/riscv/riscv.md (clear_cache): Use it.
11562
11563 2018-01-02  Artyom Skrobov  <tyomitch@gmail.com>
11564
11565         * web.c: Remove out-of-date comment.
11566
11567 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11568
11569         * expr.c (fixup_args_size_notes): Check that any existing
11570         REG_ARGS_SIZE notes are correct, and don't try to re-add them.
11571         (emit_single_push_insn_1): Move stack_pointer_delta adjustment to...
11572         (emit_single_push_insn): ...here.
11573
11574 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11575
11576         * rtl.h (CONST_VECTOR_ELT): Redefine to const_vector_elt.
11577         (const_vector_encoded_nelts): New function.
11578         (CONST_VECTOR_NUNITS): Redefine to use GET_MODE_NUNITS.
11579         (const_vector_int_elt, const_vector_elt): Declare.
11580         * emit-rtl.c (const_vector_int_elt_1): New function.
11581         (const_vector_elt): Likewise.
11582         * simplify-rtx.c (simplify_immed_subreg): Avoid taking the address
11583         of CONST_VECTOR_ELT.
11584
11585 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11586
11587         * expr.c: Include rtx-vector-builder.h.
11588         (const_vector_mask_from_tree): Use rtx_vector_builder and operate
11589         directly on the tree encoding.
11590         (const_vector_from_tree): Likewise.
11591         * optabs.c: Include rtx-vector-builder.h.
11592         (expand_vec_perm_var): Use rtx_vector_builder and create a repeating
11593         sequence of "u" values.
11594         * vec-perm-indices.c: Include rtx-vector-builder.h.
11595         (vec_perm_indices_to_rtx): Use rtx_vector_builder and operate
11596         directly on the vec_perm_indices encoding.
11597
11598 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11599
11600         * doc/rtl.texi (const_vector): Describe new encoding scheme.
11601         * Makefile.in (OBJS): Add rtx-vector-builder.o.
11602         * rtx-vector-builder.h: New file.
11603         * rtx-vector-builder.c: Likewise.
11604         * rtl.h (rtx_def::u2): Add a const_vector field.
11605         (CONST_VECTOR_NPATTERNS): New macro.
11606         (CONST_VECTOR_NELTS_PER_PATTERN): Likewise.
11607         (CONST_VECTOR_DUPLICATE_P): Likewise.
11608         (CONST_VECTOR_STEPPED_P): Likewise.
11609         (CONST_VECTOR_ENCODED_ELT): Likewise.
11610         (const_vec_duplicate_p): Check for a duplicated vector encoding.
11611         (unwrap_const_vec_duplicate): Likewise.
11612         (const_vec_series_p): Check for a non-duplicated vector encoding.
11613         Say that the function only returns true for integer vectors.
11614         * emit-rtl.c: Include rtx-vector-builder.h.
11615         (gen_const_vec_duplicate_1): Delete.
11616         (gen_const_vector): Call gen_const_vec_duplicate instead of
11617         gen_const_vec_duplicate_1.
11618         (const_vec_series_p_1): Operate directly on the CONST_VECTOR encoding.
11619         (gen_const_vec_duplicate): Use rtx_vector_builder.
11620         (gen_const_vec_series): Likewise.
11621         (gen_rtx_CONST_VECTOR): Likewise.
11622         * config/powerpcspe/powerpcspe.c: Include rtx-vector-builder.h.
11623         (swap_const_vector_halves): Take an rtx pointer rather than rtx.
11624         Build a new vector rather than modifying a CONST_VECTOR in-place.
11625         (handle_special_swappables): Update call accordingly.
11626         * config/rs6000/rs6000-p8swap.c: Include rtx-vector-builder.h.
11627         (swap_const_vector_halves): Take an rtx pointer rather than rtx.
11628         Build a new vector rather than modifying a CONST_VECTOR in-place.
11629         (handle_special_swappables): Update call accordingly.
11630
11631 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11632
11633         * simplify-rtx.c (simplify_const_binary_operation): Use
11634         CONST_VECTOR_ELT instead of XVECEXP.
11635
11636 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11637
11638         * tree-cfg.c (verify_gimple_assign_ternary): Allow the size of
11639         the selector elements to be different from the data elements
11640         if the selector is a VECTOR_CST.
11641         * tree-vect-stmts.c (vect_gen_perm_mask_any): Use a vector of
11642         ssizetype for the selector.
11643
11644 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11645
11646         * optabs.c (shift_amt_for_vec_perm_mask): Try using series_p
11647         before testing each element individually.
11648         * tree-vect-generic.c (lower_vec_perm): Likewise.
11649
11650 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11651
11652         * selftest.h (selftest::vec_perm_indices_c_tests): Declare.
11653         * selftest-run-tests.c (selftest::run_tests): Call it.
11654         * vector-builder.h (vector_builder::operator ==): New function.
11655         (vector_builder::operator !=): Likewise.
11656         * vec-perm-indices.h (vec_perm_indices::series_p): Declare.
11657         (vec_perm_indices::all_from_input_p): New function.
11658         * vec-perm-indices.c (vec_perm_indices::series_p): Likewise.
11659         (test_vec_perm_12, selftest::vec_perm_indices_c_tests): Likewise.
11660         * fold-const.c (fold_ternary_loc): Use tree_to_vec_perm_builder
11661         instead of reading the VECTOR_CST directly.  Detect whether both
11662         vector inputs are the same before constructing the vec_perm_indices,
11663         and update the number of inputs argument accordingly.  Use the
11664         utility functions added above.  Only construct sel2 if we need to.
11665
11666 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11667
11668         * optabs.c (expand_vec_perm_var): Use an explicit encoding for
11669         the broadcast of the low byte.
11670         (expand_mult_highpart): Use an explicit encoding for the permutes.
11671         * optabs-query.c (can_mult_highpart_p): Likewise.
11672         * tree-vect-loop.c (calc_vec_perm_mask_for_shift): Likewise.
11673         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
11674         (vectorizable_bswap): Likewise.
11675         * tree-vect-data-refs.c (vect_grouped_store_supported): Use an
11676         explicit encoding for the power-of-2 permutes.
11677         (vect_permute_store_chain): Likewise.
11678         (vect_grouped_load_supported): Likewise.
11679         (vect_permute_load_chain): Likewise.
11680
11681 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11682
11683         * vec-perm-indices.h (vec_perm_indices_to_tree): Declare.
11684         * vec-perm-indices.c (vec_perm_indices_to_tree): New function.
11685         * tree-ssa-forwprop.c (simplify_vector_constructor): Use it.
11686         * tree-vect-slp.c (vect_transform_slp_perm_load): Likewise.
11687         * tree-vect-stmts.c (vectorizable_bswap): Likewise.
11688         (vect_gen_perm_mask_any): Likewise.
11689
11690 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11691
11692         * int-vector-builder.h: New file.
11693         * vec-perm-indices.h: Include int-vector-builder.h.
11694         (vec_perm_indices): Redefine as an int_vector_builder.
11695         (auto_vec_perm_indices): Delete.
11696         (vec_perm_builder): Redefine as a stand-alone class.
11697         (vec_perm_indices::vec_perm_indices): New function.
11698         (vec_perm_indices::clamp): Likewise.
11699         * vec-perm-indices.c: Include fold-const.h and tree-vector-builder.h.
11700         (vec_perm_indices::new_vector): New function.
11701         (vec_perm_indices::new_expanded_vector): Update for new
11702         vec_perm_indices class.
11703         (vec_perm_indices::rotate_inputs): New function.
11704         (vec_perm_indices::all_in_range_p): Operate directly on the
11705         encoded form, without computing elided elements.
11706         (tree_to_vec_perm_builder): Operate directly on the VECTOR_CST
11707         encoding.  Update for new vec_perm_indices class.
11708         * optabs.c (expand_vec_perm_const): Create a vec_perm_indices for
11709         the given vec_perm_builder.
11710         (expand_vec_perm_var): Update vec_perm_builder constructor.
11711         (expand_mult_highpart): Use vec_perm_builder instead of
11712         auto_vec_perm_indices.
11713         * optabs-query.c (can_mult_highpart_p): Use vec_perm_builder and
11714         vec_perm_indices instead of auto_vec_perm_indices.  Use a single
11715         or double series encoding as appropriate.
11716         * fold-const.c (fold_ternary_loc): Use vec_perm_builder and
11717         vec_perm_indices instead of auto_vec_perm_indices.
11718         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
11719         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
11720         (vect_permute_store_chain): Likewise.
11721         (vect_grouped_load_supported): Likewise.
11722         (vect_permute_load_chain): Likewise.
11723         (vect_shift_permute_load_chain): Likewise.
11724         * tree-vect-slp.c (vect_build_slp_tree_1): Likewise.
11725         (vect_transform_slp_perm_load): Likewise.
11726         (vect_schedule_slp_instance): Likewise.
11727         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
11728         (vectorizable_mask_load_store): Likewise.
11729         (vectorizable_bswap): Likewise.
11730         (vectorizable_store): Likewise.
11731         (vectorizable_load): Likewise.
11732         * tree-vect-generic.c (lower_vec_perm): Use vec_perm_builder and
11733         vec_perm_indices instead of auto_vec_perm_indices.  Use
11734         tree_to_vec_perm_builder to read the vector from a tree.
11735         * tree-vect-loop.c (calc_vec_perm_mask_for_shift): Take a
11736         vec_perm_builder instead of a vec_perm_indices.
11737         (have_whole_vector_shift): Use vec_perm_builder and
11738         vec_perm_indices instead of auto_vec_perm_indices.  Leave the
11739         truncation to calc_vec_perm_mask_for_shift.
11740         (vect_create_epilog_for_reduction): Likewise.
11741         * config/aarch64/aarch64.c (expand_vec_perm_d::perm): Change
11742         from auto_vec_perm_indices to vec_perm_indices.
11743         (aarch64_expand_vec_perm_const_1): Use rotate_inputs on d.perm
11744         instead of changing individual elements.
11745         (aarch64_vectorize_vec_perm_const): Use new_vector to install
11746         the vector in d.perm.
11747         * config/arm/arm.c (expand_vec_perm_d::perm): Change
11748         from auto_vec_perm_indices to vec_perm_indices.
11749         (arm_expand_vec_perm_const_1): Use rotate_inputs on d.perm
11750         instead of changing individual elements.
11751         (arm_vectorize_vec_perm_const): Use new_vector to install
11752         the vector in d.perm.
11753         * config/powerpcspe/powerpcspe.c (rs6000_expand_extract_even):
11754         Update vec_perm_builder constructor.
11755         (rs6000_expand_interleave): Likewise.
11756         * config/rs6000/rs6000.c (rs6000_expand_extract_even): Likewise.
11757         (rs6000_expand_interleave): Likewise.
11758
11759 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11760
11761         * optabs-query.c (can_vec_perm_var_p): Check whether lowering
11762         to qimode could truncate the indices.
11763         * optabs.c (expand_vec_perm_var): Likewise.
11764
11765 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11766
11767         * Makefile.in (OBJS): Add vec-perm-indices.o.
11768         * vec-perm-indices.h: New file.
11769         * vec-perm-indices.c: Likewise.
11770         * target.h (vec_perm_indices): Replace with a forward class
11771         declaration.
11772         (auto_vec_perm_indices): Move to vec-perm-indices.h.
11773         * optabs.h: Include vec-perm-indices.h.
11774         (expand_vec_perm): Delete.
11775         (selector_fits_mode_p, expand_vec_perm_var): Declare.
11776         (expand_vec_perm_const): Declare.
11777         * target.def (vec_perm_const_ok): Replace with...
11778         (vec_perm_const): ...this new hook.
11779         * doc/tm.texi.in (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Replace with...
11780         (TARGET_VECTORIZE_VEC_PERM_CONST): ...this new hook.
11781         * doc/tm.texi: Regenerate.
11782         * optabs.def (vec_perm_const): Delete.
11783         * doc/md.texi (vec_perm_const): Likewise.
11784         (vec_perm): Refer to TARGET_VECTORIZE_VEC_PERM_CONST.
11785         * expr.c (expand_expr_real_2): Use expand_vec_perm_const rather than
11786         expand_vec_perm for constant permutation vectors.  Assert that
11787         the mode of variable permutation vectors is the integer equivalent
11788         of the mode that is being permuted.
11789         * optabs-query.h (selector_fits_mode_p): Declare.
11790         * optabs-query.c: Include vec-perm-indices.h.
11791         (selector_fits_mode_p): New function.
11792         (can_vec_perm_const_p): Check whether targetm.vectorize.vec_perm_const
11793         is defined, instead of checking whether the vec_perm_const_optab
11794         exists.  Use targetm.vectorize.vec_perm_const instead of
11795         targetm.vectorize.vec_perm_const_ok.  Check whether the indices
11796         fit in the vector mode before using a variable permute.
11797         * optabs.c (shift_amt_for_vec_perm_mask): Take a mode and a
11798         vec_perm_indices instead of an rtx.
11799         (expand_vec_perm): Replace with...
11800         (expand_vec_perm_const): ...this new function.  Take the selector
11801         as a vec_perm_indices rather than an rtx.  Also take the mode of
11802         the selector.  Update call to shift_amt_for_vec_perm_mask.
11803         Use targetm.vectorize.vec_perm_const instead of vec_perm_const_optab.
11804         Use vec_perm_indices::new_expanded_vector to expand the original
11805         selector into bytes.  Check whether the indices fit in the vector
11806         mode before using a variable permute.
11807         (expand_vec_perm_var): Make global.
11808         (expand_mult_highpart): Use expand_vec_perm_const.
11809         * fold-const.c: Includes vec-perm-indices.h.
11810         * tree-ssa-forwprop.c: Likewise.
11811         * tree-vect-data-refs.c: Likewise.
11812         * tree-vect-generic.c: Likewise.
11813         * tree-vect-loop.c: Likewise.
11814         * tree-vect-slp.c: Likewise.
11815         * tree-vect-stmts.c: Likewise.
11816         * config/aarch64/aarch64-protos.h (aarch64_expand_vec_perm_const):
11817         Delete.
11818         * config/aarch64/aarch64-simd.md (vec_perm_const<mode>): Delete.
11819         * config/aarch64/aarch64.c (aarch64_expand_vec_perm_const)
11820         (aarch64_vectorize_vec_perm_const_ok): Fuse into...
11821         (aarch64_vectorize_vec_perm_const): ...this new function.
11822         (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
11823         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
11824         * config/arm/arm-protos.h (arm_expand_vec_perm_const): Delete.
11825         * config/arm/vec-common.md (vec_perm_const<mode>): Delete.
11826         * config/arm/arm.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
11827         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
11828         (arm_expand_vec_perm_const, arm_vectorize_vec_perm_const_ok): Merge
11829         into...
11830         (arm_vectorize_vec_perm_const): ...this new function.  Explicitly
11831         check for NEON modes.
11832         * config/i386/i386-protos.h (ix86_expand_vec_perm_const): Delete.
11833         * config/i386/sse.md (VEC_PERM_CONST, vec_perm_const<mode>): Delete.
11834         * config/i386/i386.c (ix86_expand_vec_perm_const_1): Update comment.
11835         (ix86_expand_vec_perm_const, ix86_vectorize_vec_perm_const_ok): Merge
11836         into...
11837         (ix86_vectorize_vec_perm_const): ...this new function.  Incorporate
11838         the old VEC_PERM_CONST conditions.
11839         * config/ia64/ia64-protos.h (ia64_expand_vec_perm_const): Delete.
11840         * config/ia64/vect.md (vec_perm_const<mode>): Delete.
11841         * config/ia64/ia64.c (ia64_expand_vec_perm_const)
11842         (ia64_vectorize_vec_perm_const_ok): Merge into...
11843         (ia64_vectorize_vec_perm_const): ...this new function.
11844         * config/mips/loongson.md (vec_perm_const<mode>): Delete.
11845         * config/mips/mips-msa.md (vec_perm_const<mode>): Delete.
11846         * config/mips/mips-ps-3d.md (vec_perm_constv2sf): Delete.
11847         * config/mips/mips-protos.h (mips_expand_vec_perm_const): Delete.
11848         * config/mips/mips.c (mips_expand_vec_perm_const)
11849         (mips_vectorize_vec_perm_const_ok): Merge into...
11850         (mips_vectorize_vec_perm_const): ...this new function.
11851         * config/powerpcspe/altivec.md (vec_perm_constv16qi): Delete.
11852         * config/powerpcspe/paired.md (vec_perm_constv2sf): Delete.
11853         * config/powerpcspe/spe.md (vec_perm_constv2si): Delete.
11854         * config/powerpcspe/vsx.md (vec_perm_const<mode>): Delete.
11855         * config/powerpcspe/powerpcspe-protos.h (altivec_expand_vec_perm_const)
11856         (rs6000_expand_vec_perm_const): Delete.
11857         * config/powerpcspe/powerpcspe.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK):
11858         Delete.
11859         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
11860         (altivec_expand_vec_perm_const_le): Take each operand individually.
11861         Operate on constant selectors rather than rtxes.
11862         (altivec_expand_vec_perm_const): Likewise.  Update call to
11863         altivec_expand_vec_perm_const_le.
11864         (rs6000_expand_vec_perm_const): Delete.
11865         (rs6000_vectorize_vec_perm_const_ok): Delete.
11866         (rs6000_vectorize_vec_perm_const): New function.
11867         (rs6000_do_expand_vec_perm): Take a vec_perm_builder instead of
11868         an element count and rtx array.
11869         (rs6000_expand_extract_even): Update call accordingly.
11870         (rs6000_expand_interleave): Likewise.
11871         * config/rs6000/altivec.md (vec_perm_constv16qi): Delete.
11872         * config/rs6000/paired.md (vec_perm_constv2sf): Delete.
11873         * config/rs6000/vsx.md (vec_perm_const<mode>): Delete.
11874         * config/rs6000/rs6000-protos.h (altivec_expand_vec_perm_const)
11875         (rs6000_expand_vec_perm_const): Delete.
11876         * config/rs6000/rs6000.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
11877         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
11878         (altivec_expand_vec_perm_const_le): Take each operand individually.
11879         Operate on constant selectors rather than rtxes.
11880         (altivec_expand_vec_perm_const): Likewise.  Update call to
11881         altivec_expand_vec_perm_const_le.
11882         (rs6000_expand_vec_perm_const): Delete.
11883         (rs6000_vectorize_vec_perm_const_ok): Delete.
11884         (rs6000_vectorize_vec_perm_const): New function.  Remove stray
11885         reference to the SPE evmerge intructions.
11886         (rs6000_do_expand_vec_perm): Take a vec_perm_builder instead of
11887         an element count and rtx array.
11888         (rs6000_expand_extract_even): Update call accordingly.
11889         (rs6000_expand_interleave): Likewise.
11890         * config/sparc/sparc.md (vec_perm_constv8qi): Delete in favor of...
11891         * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): ...this
11892         new function.
11893         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
11894
11895 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11896
11897         * optabs.c (expand_vec_perm_1): Assert that SEL has an integer
11898         vector mode and that that mode matches the mode of the data
11899         being permuted.
11900         (expand_vec_perm): Split handling of non-CONST_VECTOR selectors
11901         out into expand_vec_perm_var.  Do all CONST_VECTOR handling here,
11902         directly using expand_vec_perm_1 when forcing selectors into
11903         registers.
11904         (expand_vec_perm_var): New function, split out from expand_vec_perm.
11905
11906 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11907
11908         * optabs-query.h (can_vec_perm_p): Delete.
11909         (can_vec_perm_var_p, can_vec_perm_const_p): Declare.
11910         * optabs-query.c (can_vec_perm_p): Split into...
11911         (can_vec_perm_var_p, can_vec_perm_const_p): ...these two functions.
11912         (can_mult_highpart_p): Use can_vec_perm_const_p to test whether a
11913         particular selector is valid.
11914         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
11915         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
11916         (vect_grouped_load_supported): Likewise.
11917         (vect_shift_permute_load_chain): Likewise.
11918         * tree-vect-slp.c (vect_build_slp_tree_1): Likewise.
11919         (vect_transform_slp_perm_load): Likewise.
11920         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
11921         (vectorizable_bswap): Likewise.
11922         (vect_gen_perm_mask_checked): Likewise.
11923         * fold-const.c (fold_ternary_loc): Likewise.  Don't take
11924         implementations of variable permutation vectors into account
11925         when deciding which selector to use.
11926         * tree-vect-loop.c (have_whole_vector_shift): Don't check whether
11927         vec_perm_const_optab is supported; instead use can_vec_perm_const_p
11928         with a false third argument.
11929         * tree-vect-generic.c (lower_vec_perm): Use can_vec_perm_const_p
11930         to test whether the constant selector is valid and can_vec_perm_var_p
11931         to test whether a variable selector is valid.
11932
11933 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11934
11935         * optabs-query.h (can_vec_perm_p): Take a const vec_perm_indices *.
11936         * optabs-query.c (can_vec_perm_p): Likewise.
11937         * fold-const.c (fold_vec_perm): Take a const vec_perm_indices &
11938         instead of vec_perm_indices.
11939         * tree-vectorizer.h (vect_gen_perm_mask_any): Likewise,
11940         (vect_gen_perm_mask_checked): Likewise,
11941         * tree-vect-stmts.c (vect_gen_perm_mask_any): Likewise,
11942         (vect_gen_perm_mask_checked): Likewise,
11943
11944 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11945
11946         * optabs-query.h (qimode_for_vec_perm): Declare.
11947         * optabs-query.c (can_vec_perm_p): Split out qimode search to...
11948         (qimode_for_vec_perm): ...this new function.
11949         * optabs.c (expand_vec_perm): Use qimode_for_vec_perm.
11950
11951 2018-01-02  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
11952
11953         * rtlanal.c (canonicalize_condition): Return 0 if final rtx
11954         does not have a conditional at the top.
11955
11956 2018-01-02  Richard Biener  <rguenther@suse.de>
11957
11958         * ipa-inline.c (big_speedup_p): Fix expression.
11959
11960 2018-01-02  Jan Hubicka  <hubicka@ucw.cz>
11961
11962         PR target/81616
11963         * config/i386/x86-tune-costs.h: Increase cost of integer load costs
11964         for generic 4->6.
11965
11966 2018-01-02  Jan Hubicka  <hubicka@ucw.cz>
11967
11968         PR target/81616
11969         Generic tuning.
11970         * x86-tune-costs.h (generic_cost): Reduce cost of FDIV 20->17,
11971         cost of sqrt 20->14, DIVSS 18->13, DIVSD 32->17, SQRtSS 30->14
11972         and SQRTsD 58->18, cond_not_taken_branch_cost. 2->1. Increase
11973         cond_taken_branch_cost 3->4.
11974
11975 2018-01-01  Jakub Jelinek  <jakub@redhat.com>
11976
11977         PR tree-optimization/83581
11978         * tree-loop-distribution.c (pass_loop_distribution::execute): Return
11979         TODO_cleanup_cfg if any changes have been made.
11980
11981         PR middle-end/83608
11982         * expr.c (store_expr_with_bounds): Use simplify_gen_subreg instead of
11983         convert_modes if target mode has the right side, but different mode
11984         class.
11985
11986         PR middle-end/83609
11987         * expr.c (expand_assignment): Fix up a typo in simplify_gen_subreg
11988         last argument when extracting from CONCAT.  If either from_real or
11989         from_imag is NULL, use expansion through memory.  If result is not
11990         a CONCAT and simplify_gen_subreg fails, try to simplify_gen_subreg
11991         the parts directly to inner mode, if even that fails, use expansion
11992         through memory.
11993
11994         PR middle-end/83623
11995         * expmed.c (expand_shift_1): For 2-byte rotates by BITS_PER_UNIT,
11996         check for bswap in mode rather than HImode and use that in expand_unop
11997         too.
11998 \f
11999 Copyright (C) 2018 Free Software Foundation, Inc.
12000
12001 Copying and distribution of this file, with or without modification,
12002 are permitted in any medium without royalty provided the copyright
12003 notice and this notice are preserved.