gcc/ChangeLog

   1 2018-05-03  Tom de Vries  <tom@codesourcery.com>
   2
   3         PR testsuite/85106
   4         * doc/sourcebuild.texi (Commands for use in dg-final, Scan optimization
   5         dump files): Add offload-tree.
   6
   7 2018-05-03  Richard Biener  <rguenther@suse.de>
   8
   9         PR tree-optimization/85615
  10         * tree-ssa-threadupdate.c (thread_block_1): Only allow exits
  11         to loops not nested in BBs loop father to avoid creating multi-entry
  12         loops.
  13
  14 2018-05-03  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
  15
  16         PR tree-optimization/70291
  17         * tree-complex.c (expand_complex_libcall): Add type, inplace_p
  18         arguments.  Change return type to tree.  Emit libcall as a new
  19         statement rather than replacing existing one when inplace_p is true.
  20         (expand_complex_multiplication_components): New function.
  21         (expand_complex_multiplication): Expand floating-point complex
  22         multiplication using the above.
  23         (expand_complex_division): Rename inner_type parameter to type.
  24         Update expand_complex_libcall call-site.
  25         (expand_complex_operations_1): Update expand_complex_multiplication
  26         and expand_complex_division call-sites.
  27
  28 2018-05-02  Jakub Jelinek  <jakub@redhat.com>
  29
  30         PR target/85582
  31         * config/i386/i386.md (*ashl<dwi>3_doubleword_mask,
  32         *ashl<dwi>3_doubleword_mask_1, *<shift_insn><dwi>3_doubleword_mask,
  33         *<shift_insn><dwi>3_doubleword_mask_1): In condition require that
  34         the highest significant bit of the shift count mask is clear.  In
  35         check whether and[sq]i3 is needed verify that all significant bits
  36         of the shift count other than the highest are set.
  37
  38 2018-05-02  Tom de Vries  <tom@codesourcery.com>
  39
  40         PR libgomp/82428
  41         * builtins.def (DEF_GOACC_BUILTIN_ONLY): Define.
  42         * omp-builtins.def (BUILT_IN_GOACC_PARLEVEL_ID)
  43         (BUILT_IN_GOACC_PARLEVEL_SIZE): New builtin.
  44         * builtins.c (expand_builtin_goacc_parlevel_id_size): New function.
  45         (expand_builtin): Call expand_builtin_goacc_parlevel_id_size.
  46         * doc/extend.texi (Other Builtins): Add __builtin_goacc_parlevel_id and
  47         __builtin_goacc_parlevel_size.
  48
  49 2018-05-02  Richard Biener  <rguenther@suse.de>
  50
  51         PR tree-optimization/85597
  52         * tree-vect-stmts.c (vectorizable_operation): For ternary SLP
  53         do not use split vect_get_vec_defs call but call vect_get_slp_defs
  54         directly.
  55
  56 2018-05-02  Tom de Vries  <tom@codesourcery.com>
  57
  58         PR testsuite/85106
  59         * doc/sourcebuild.texi (Commands for use in dg-final, Scan optimization
  60         dump files): Add ltrans-tree.
  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 wpa-ipa.
  67
  68 2018-05-02  Segher Boessenkool  <segher@kernel.crashing.org>
  69
  70         * config.gcc (powerpc*-*-*): Remove paired.h.  Unsupport the
  71         powerpc*-*-linux*paired* target.
  72         * config/rs6000/750cl.h: Delete.
  73         * config/rs6000/paired.h: Delete.
  74         * config/rs6000/paired.md: Delete.
  75         * config/rs6000/predicates.md (easy_vector_constant): Remove paired
  76         float support.
  77         * config/rs6000/rs6000-builtin.def: Remove paired float support.
  78         * config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Update
  79         comment.  Remove paired float support.
  80         * config/rs6000/rs6000-modes.def: Remove V2SF and V2SI.
  81         * config/rs6000/rs6000-opts.h (enum rs6000_vector): Delete
  82         VECTOR_PAIRED.
  83         * config/rs6000/rs6000-protos.h (paired_expand_vector_init,
  84         paired_emit_vector_cond_expr, paired_expand_vector_move): Delete
  85         declarations.
  86         * config/rs6000/rs6000.c: Remove paired float support.
  87         (paired_expand_vector_init, paired_expand_vector_move,
  88         paired_emit_vector_compare, paired_emit_vector_cond_expr,
  89         (paired_expand_lv_builtin, paired_expand_stv_builtin,
  90         paired_expand_builtin, paired_expand_predicate_builtin,
  91         paired_init_builtins): Delete.
  92         * config/rs6000/rs6000.h: Remove paired float support.
  93         * config/rs6000/rs6000.md: Remove paired float support.
  94         (move_from_CR_ov_bit): Delete.
  95         * config/rs6000/rs6000.opt (mpaired): Delete.
  96         * config/rs6000/t-rs6000: Remove paired.md from MD_INCLUDES.
  97         * doc/invoke.texi (RS/6000 and PowerPC Options): Delete -mpaired.
  98
  99 2018-05-02  Richard Biener  <rguenther@suse.de>
 100
 101         PR middle-end/85567
 102         * gimplify.c (gimplify_save_expr): When in SSA form allow
 103         SAVE_EXPRs to compute to SSA vars.
 104
 105 2018-05-02  Jakub Jelinek  <jakub@redhat.com>
 106
 107         PR target/85582
 108         * config/i386/i386.md (*ashl<dwi>3_doubleword_mask,
 109         *ashl<dwi>3_doubleword_mask_1, *<shift_insn><dwi>3_doubleword_mask,
 110         *<shift_insn><dwi>3_doubleword_mask_1): If and[sq]i3 is needed, don't
 111         clobber operands[2], instead use a new pseudo.  Formatting fixes.
 112
 113 2018-05-02  Richard Sandiford  <richard.sandiford@linaro.org>
 114
 115         PR tree-optimization/85586
 116         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence): Only
 117         exit early for statements in the same group if the accesses are
 118         not strided.
 119
 120 2018-05-02  Tom de Vries  <tom@codesourcery.com>
 121
 122         PR lto/85451
 123         * lto-wrapper.c (compile_offload_image): Add "could not find mkoffload"
 124         error message.
 125
 126 2018-05-01  Marc Glisse  <marc.glisse@inria.fr>
 127
 128         PR tree-optimization/85143
 129         * match.pd (A<B&A<C): Extend to BIT_IOR_EXPR.
 130
 131 2018-05-01  Tom de Vries  <tom@codesourcery.com>
 132
 133         PR lto/85451
 134         * config/nvptx/mkoffload.c (main): Suggest using -B in "offload compiler
 135         not found" error message.
 136
 137 2018-05-01  Tom de Vries  <tom@codesourcery.com>
 138
 139         PR other/83786
 140         * vec.h (VEC_ORDERED_REMOVE_IF, VEC_ORDERED_REMOVE_IF_FROM_TO): Define.
 141         * vec.c (test_ordered_remove_if): New function.
 142         (vec_c_tests): Call test_ordered_remove_if.
 143         * dwarf2cfi.c (connect_traces): Use VEC_ORDERED_REMOVE_IF_FROM_TO.
 144         * lto-streamer-out.c (prune_offload_funcs): Use VEC_ORDERED_REMOVE_IF.
 145         * tree-vect-patterns.c (vect_pattern_recog_1): Use
 146         VEC_ORDERED_REMOVE_IF.
 147
 148 2018-05-01  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
 149
 150         PR tree-optimization/82665
 151         * vr-values.c (vr_values::extract_range_from_binary_expr): Handle
 152         pointer subtraction where arguments come from a memchr call.
 153
 154 2018-05-01  Jakub Jelinek  <jakub@redhat.com>
 155
 156         * configure.ac (LD_AS_NEEDED_OPTION, LD_NO_AS_NEEDED_OPTION): Use
 157         --push-state --as-needed and --pop-state instead of --as-needed and
 158         --no-as-needed if ld supports it.
 159         * configure: Regenerated.
 160
 161         PR web/85578
 162         * doc/install.texi2html: Replace _002d with - and _002a with * in
 163         generated html files using sed.
 164
 165 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
 166
 167         PR c++/85523
 168         * gcc-rich-location.c (blank_line_before_p): New function.
 169         (use_new_line): New function.
 170         (gcc_rich_location::add_fixit_insert_formatted): New function.
 171         * gcc-rich-location.h
 172         (gcc_rich_location::add_fixit_insert_formatted): New function.
 173
 174 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
 175
 176         * selftest.c (assert_streq): Rename "expected" and "actual" to
 177         "val1" and "val2".  Extend NULL-handling to cover both inputs
 178         symmetrically, while still requiring both to be non-NULL for a pass.
 179         * selftest.h (assert_streq): Rename "expected" and "actual" to
 180         "val1" and "val2".
 181         (ASSERT_EQ): Likewise.
 182         (ASSERT_EQ_AT): Likewise.
 183         (ASSERT_KNOWN_EQ): Likewise.
 184         (ASSERT_KNOWN_EQ_AT): Likewise.
 185         (ASSERT_NE): Likewise.
 186         (ASSERT_MAYBE_NE): Likewise.
 187         (ASSERT_MAYBE_NE_AT): Likewise.
 188         (ASSERT_STREQ): Likewise.  Clarify that both must be non-NULL for
 189         the assertion to pass.
 190         (ASSERT_STREQ_AT): Likewise.
 191
 192 2018-04-30  Jonathan Wakely  <jwakely@redhat.com>
 193
 194         * doc/invoke.texi (-fpie, -fPIE): Fix grammar and clarify
 195         interaction with -pie.
 196
 197 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
 198
 199         * selftest.h: Fix alphabetization of per-source-file selftest
 200         declarations.
 201
 202 2018-04-30  Jason Merrill  <jason@redhat.com>
 203
 204         PR c++/61982 - dead stores to destroyed objects.
 205         * gimplify.c (gimplify_modify_expr): Simplify complex lvalue on LHS
 206         of clobber.
 207
 208 2018-04-30  Jason Merrill  <jason@redhat.com>
 209
 210         * tree.c (build_clobber): New.
 211         * tree.h: Declare it.
 212         * gimplify.c (gimplify_bind_expr, gimplify_target_expr): Use it.
 213
 214 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
 215
 216         * diagnostic-show-locus.c (layout::layout): Update for
 217         location_get_source_line returning a char_span.
 218         (struct char_span): Move to input.h.
 219         (struct correction): Update for fields in char_span becoming
 220         private.
 221         (struct source_line): Update for location_get_source_line
 222         returning a char_span.
 223         (layout::print_line): Likewise.
 224         * edit-context.c (edited_file::print_content): Likewise.
 225         (edited_file::print_diff_hunk): Likewise.
 226         (edited_file::print_run_of_changed_lines): Likewise.
 227         (edited_file::get_num_lines): Likewise.
 228         (edited_line::edited_line): Likewise.
 229         * final.c (asm_show_source): Likewise.
 230         * input.c (location_get_source_line): Convert return type
 231         from const char * to char_span, losing the final "line_len"
 232         param.
 233         (dump_location_info): Update for the above.
 234         (get_substring_ranges_for_loc): Likewise.  Use a char_span
 235         when handling the literal within the line.
 236         (test_reading_source_line): Update for location_get_source_line
 237         returning a char_span.
 238         * input.h (class char_span): Move here from
 239         diagnostic-show-locus.c, converting from a struct to a class.
 240         Make data members private.
 241         (char_span::operator bool): New.
 242         (char_span::length): New.
 243         (char_span::get_buffer): New.
 244         (char_span::operator[]): New.
 245         (char_span::subspan): Make const.
 246         (char_span::xstrdup): New.
 247         (location_get_source_line): Convert return type from const char *
 248         to char_span, losing the final "line_size" param.
 249
 250 2018-04-30  Jan Hubicka  <jh@suse.cz>
 251
 252         * lto-wrapper.c (ltrans_priorities): New static var.
 253         (cmp_priority): New.
 254         (run_gcc): Read priorities and if doing parallel build order
 255         the Makefile by them.
 256
 257 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
 258
 259         * input.h (builtins_location_check): Convert to a STATIC_ASSERT.
 260
 261 2018-04-30  Richard Biener  <rguenther@suse.de>
 262
 263         * tree-cfg.c (verify_address): Remove base argument, add
 264         flag whether to check TREE_ADDRESSABLE and do that.
 265         (verify_expr): Remove.
 266         (verify_types_in_gimple_reference): Add pieces from verify_expr.
 267         (verify_gimple_assign_single): Likewise.
 268         (verify_gimple_switch): Likewise.
 269         (verify_expr_location_1): Dereference tp once.  Add (disabled)
 270         piece from verify_expr.
 271         (verify_gimple_in_cfg): Do not call verify_expr on all ops.
 272
 273 2018-04-30  Claudiu Zissulescu  <claziss@synopsys.com>
 274
 275         * config/arc/linux.h (CLEAR_INSN_CACHE): Define.
 276
 277 2018-04-30  Claudiu Zissulescu  <claziss@synopsys.com>
 278
 279         * config/arc/arc-protos.h (prepare_extend_operands): Remove.
 280         (small_data_pattern): Likewise.
 281         (arc_rewrite_small_data): Likewise.
 282         * config/arc/arc.c (LEGITIMATE_SMALL_DATA_OFFSET_P): Remove.
 283         (LEGITIMATE_SMALL_DATA_ADDRESS_P): Likewise.
 284         (get_symbol_alignment): New function.
 285         (legitimate_small_data_address_p): Likewise.
 286         (legitimate_scaled_address): Update, call
 287         legitimate_small_data_address_p.
 288         (output_sdata): New static variable.
 289         (arc_print_operand): Update how we handle small data operands.
 290         (arc_print_operand_address): Likewise.
 291         (arc_legitimate_address_p): Update, use
 292         legitimate_small_data_address_p.
 293         (arc_rewrite_small_data_p): Remove.
 294         (arc_rewrite_small_data_1): Likewise.
 295         (arc_rewrite_small_data): Likewise.
 296         (small_data_pattern): Likewise.
 297         (compact_sda_memory_operand): Update to use
 298         legitimate_small_data_address_p and get_symbol_alignment.
 299         (prepare_move_operands): Don't rewite sdata pattern.
 300         (prepare_extend_operands): Remove.
 301         * config/arc/arc.md (zero_extendqihi2): Don't rewrite sdata
 302         pattern.
 303         (zero_extendqisi2): Likewise.
 304         (zero_extendhisi2): Likewise.
 305         (extendqihi2): Likewise.
 306         (extendqisi2): Likewise.
 307         (extendhisi2): Likewise.
 308         (addsi3): Likewise.
 309         (subsi3): Likewise.
 310         (andsi3): Likewise.
 311         * config/arc/constraints.md (Usd): Change it to memory constraint.
 312
 313 2018-04-30  Claudiu Zissulescu  <claziss@synopsys.com>
 314
 315         * config/arc/arc.c (arc_split_move): Allow signed 6-bit constants
 316         as source of std instructions.
 317         * config/arc/arc.md (movsi_insn): Update pattern predicate to
 318         allow 6-bit constants as source for store instructions.
 319         (movdi_insn): Update instruction pattern to allow 6-bit constants
 320         as source for store instructions.
 321
 322 2018-04-30  Jonathan Wakely  <jwakely@redhat.com>
 323
 324         * doc/invoke.texi (-fdebug-types-section): Fix grammar.
 325
 326 2018-04-30  Nathan Sidwell  <nathan@acm.org>
 327             Sandra Loosemore <sandra@codesourcery.com>
 328
 329         * dumpfile.c (dump_open): Allow '-' for stdout.
 330         * doc/invoke.texi (Developer Options): Document dump filename
 331         determination early.  Document stdin/stdout selection.
 332
 333 2018-04-30 Andrew Sadek  <andrew.sadek.se@gmail.com>
 334
 335         Microblaze Target: PIC data text relative
 336
 337         * config/microblaze/microblaze.opt: add new option -mpic-data-text-rel.
 338         * config/microblaze/microblaze-protos.h (microblaze_constant_address_p):
 339         Add declaration.
 340         * gcc/config/microblaze/microblaze.h (microblaze_constant_address_p):
 341         CONSTANT_ADDRESS_P definition to microblaze_constant_address_p.
 342         * config/microblaze/microblaze.c (TARGET_PIC_DATA_TEXT_REL):
 343         New addressing mode for data-text relative position indepenedent code.
 344         (microblaze_classify_unspec): add 'UNSPEC_TEXT' case ->
 345         'ADDRESS_SYMBOLIC_TXT_REL'.
 346         (microblaze_classify_address): Add handling for UNSPEC + CONST_INT.
 347         (microblaze_legitimate_pic_operand): Exclude function calls from
 348         pic operands in case of TARGET_PIC_DATA_TEXT_REL option.
 349         (microblaze_legitimize_address): Generate 'UNSPEC_TEXT' for all possible
 350         addresses cases.
 351         (microblaze_address_insns): Add 'ADDRESS_SYMBOLIC_TXT_REL' case.
 352         (print_operand): Add 'ADDRESS_SYMBOLIC_TXT_REL' case.
 353         (print_operand_address): Add 'ADDRESS_SYMBOLIC_TXT_REL' case + handling
 354         for 'address + offset'.
 355         (microblaze_expand_prologue): Add new function prologue call for
 356         'r20' assignation.
 357         (microblaze_asm_generate_pic_addr_dif_vec): Override new target hook
 358         'TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC' to disable address diff vector
 359         table in case of TARGET_PIC_DATA_TEXT_REL.
 360         (expand_pic_symbol_ref): Add handling for 'UNSPEC_TEXT'.
 361         * gcc/config/microblaze/microblaze.md (TARGET_PIC_DATA_TEXT_REL):
 362         Add new macros 'UNSPEC_TEXT',
 363         'UNSPEC_SET_TEXT' + add rule for setting r20 in function prologue
 364         + exclude function calls from 'UNSPEC_PLT' in case of data text
 365         relative mode.
 366         * doc/tm.texi.in (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC): Add
 367         new target hook for generating address diff vector tables in case of
 368         flag_pic.
 369         * doc/tm.texi : Regenerate.
 370         * stmt.c (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC): Append new condition
 371         'targetm.asm_out.generate_pic_addr_diff_vec' to flag_pic in case
 372         of addr diff vector generation.
 373         * target.def (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC): Add
 374         target hook definition.
 375         * targhooks.h, gcc/targhooks.c (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC):
 376         Add default function for generate_pic_addr_diff_vec -> flag_pic.
 377         * doc/invoke.texi (Add new pic option): Add new microblaze pic
 378         option for data text relative.
 379
 380 2018-04-30  Richard Biener  <rguenther@suse.de>
 381
 382         * tree-chrec.h (evolution_function_is_constant_p): Remove
 383         redundant check.
 384         * tree-cfg.c (tree_node_can_be_shared): Re-order checks.
 385
 386 2018-04-30  Richard Biener  <rguenther@suse.de>
 387
 388         PR bootstrap/85571
 389         * dwarf2out.c (gen_producer_string): Ignore -fchecking[=].
 390
 391 2018-04-30  Richard Biener  <rguenther@suse.de>
 392
 393         PR tree-optimization/28364
 394         PR tree-optimization/85275
 395         * tree-ssa-loop-ch.c (ch_base::copy_headers): Stop after
 396         copying first exit test.
 397
 398 2018-04-28  Mark Wielaard  <mark@klomp.org>
 399
 400         * dwarf2out.c (dwarf2out_finish): Add .debug_addr table header for
 401         dwarf_version >= 5.
 402         (dwarf_AT): Handle DW_AT_addr_base.
 403         (add_top_level_skeleton_die_attrs): Use dwarf_AT for DW_AT_addr_base.
 404
 405 2018-04-28  Uros Bizjak  <ubizjak@gmail.com>
 406
 407         PR target/84431
 408         * config/i386/i386.md (*ashl<dwi>3_doubleword_mask): New pattern.
 409         (*ashl<dwi>3_doubleword_mask_1): Ditto.
 410         (*<shift_insn><dwi>3_doubleword_mask): Ditto.
 411         (*<shift_insn><dwi>3_doubleword_mask_1): Ditto.
 412
 413 2018-04-28  Richard Biener  <rguenther@suse.de>
 414
 415         * tree-cfg.c (verify_gimple_phi): Take a gphi * argument.
 416         (verify_gimple_in_cfg): Rename visited_stmts to visited_throwing_stmts
 417         to reflect use.  Only add interesting stmts.
 418
 419 2018-04-27  Martin Jambor  <mjambor@suse.cz>
 420
 421         PR ipa/85549
 422         * ipa-cp.c (find_aggregate_values_for_callers_subset): Make sure
 423         the jump function allows for passing through aggregate values.
 424
 425 2018-04-27  David Malcolm  <dmalcolm@redhat.com>
 426
 427         * input.h (in_system_header_at): Convert from macro to inline
 428         function.
 429         (from_macro_expansion_at): Likewise.
 430         (from_macro_definition_at): Likewise.
 431
 432 2018-04-27  Jeff Law  <law@redhat.com>
 433
 434         * config.gcc: Mark tile* targets as deprecated/obsolete.
 435
 436 2018-04-27  Richard Biener  <rguenther@suse.de>
 437
 438         * config/aarch64/aarch64.c: Simplify ap.__stack advance and
 439         fix for ILP32.
 440
 441 2018-04-27  Richard Biener  <rguenther@suse.de>
 442
 443         * tree-cfg.c (verify_expr): Make dead code hit gcc_unreachable.
 444
 445 2018-04-27  Uros Bizjak  <ubizjak@gmail.com>
 446
 447         * config/i386/i386.md (*movti_internal): Substitute Ye constraint
 448         with Yd constraint. Set "preferred_for_speed" attribute from
 449         TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC for alternatives
 450         with Yd constraint.
 451         (*movdi_internal): Ditto.
 452         (movti_interunit splitters): Remove
 453         TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC from insn condition.
 454         (movdi_interunit splitters): Ditto.
 455         * config/i386/constraints.md (Ye): Remove.
 456         (Yd): Do not depend on TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC.
 457
 458 2018-04-27  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 459
 460         PR target/85512
 461         * config/aarch64/constraints.md (Usg): Limit to 31.
 462         (Usj): Limit to 63.
 463
 464 2018-04-27  Jakub Jelinek  <jakub@redhat.com>
 465
 466         PR tree-optimization/85529
 467         * tree-ssa-reassoc.c (optimize_range_tests_var_bound): Add FIRST_BB
 468         argument.  Don't call get_nonzero_bits if opcode is ERROR_MARK_NODE,
 469         rhs2 def stmt's bb is dominated by first_bb and it isn't an obvious
 470         zero extension or masking of the MSB bit.
 471         (optimize_range_tests): Add FIRST_BB argument, pass it through
 472         to optimize_range_tests_var_bound.
 473         (maybe_optimize_range_tests, reassociate_bb): Adjust
 474         optimize_range_tests callers.
 475
 476 2018-04-26  Richard Biener  <rguenther@suse.de>
 477             Jakub Jelinek  <jakub@redhat.com>
 478
 479         * cgraph.h (symbol_table): Just declare debug method here.
 480         * symtab.c (symbol_table::debug): Define.
 481
 482 2018-04-26  Eric Botcazou  <ebotcazou@adacore.com>
 483
 484         * loop-invariant.c (may_assign_reg_p): Return false for frame pointer.
 485
 486 2018-04-26  Uros Bizjak  <ubizjak@gmail.com>
 487
 488         * config/i386/i386.md ("isa" attribute): Add x64_sse2.
 489         ("enabled" attribute): Handle x64_sse2 "isa" attribute.
 490         (*movdi_internal): Substitute Yi and Yj constraint with x
 491         and Ym and Yn constraint with y constraint.  Update "isa"
 492         attribute and set "preferred_for_speed" attribute from
 493         TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC for updated alternatives.
 494         (*movsi_internal): Ditto.
 495         (*movdf_internal): Ditto.
 496         (*movsf_internal): Ditto.
 497         (*zero_extendsidi2): Ditto.
 498         * config/i386/sse.md (vec_set<mode>_0): Ditto.
 499         (sse2_loadld): Ditto.
 500         (*vec_extract<ssevecmodelower>_0): Ditto.
 501         (*vec_extractv4si_0_zext_sse4): Ditto.
 502         (vec_concatv2di): Ditto.
 503         (*vec_dup<mode>): Ditto.
 504         * config/i386/mmx.md (*mov<mode>_internal): Ditto.
 505         * config/i386/constraints.md (Yi): Remove.
 506         (Yj): Remove.
 507         (Ym): Remove.
 508         (Yn): Remove.
 509
 510 2018-04-26  Nathan Sidwell  <nathan@acm.org>
 511
 512         * dumpfile.c (dump_open): New.
 513         (dump_open_alternate_stream, dump_start, dump_begin): Call it.
 514         (dump_finish): Detect stdio/stderr by value not name.
 515
 516 2018-04-26  Jonathan Wakely  <jwakely@redhat.com>
 517
 518         * doc/invoke.texi (-Wreturn-type): Document default status for C++.
 519
 520 2018-04-26  Tom de Vries  <tom@codesourcery.com>
 521
 522         PR target/84952
 523         * config/nvptx/nvptx.c (verify_neutering_jumps)
 524         (verify_neutering_labels): New function
 525         (nvptx_single): Use verify_neutering_jumps and verify_neutering_labels.
 526
 527 2018-04-26  Tom de Vries  <tom@codesourcery.com>
 528
 529         PR target/84025
 530         * config/nvptx/nvptx.c (needs_neutering_p): New function.
 531         (nvptx_single): Use needs_neutering_p to skip over insns that do not
 532         need neutering.
 533
 534 2018-04-26  Richard Biener <rguenther@suse.de>
 535             Tom de Vries  <tom@codesourcery.com>
 536
 537         PR lto/85422
 538         * lto-streamer-out.c (output_function): Fixup loops if required to match
 539         discovery done in the reader.
 540
 541 2018-04-26  Richard Biener  <rguenther@suse.de>
 542
 543         PR tree-optimization/85116
 544         * tree-ssa-loop-ch.c (do_while_loop_p): A do-while loop should
 545         have a loop exit from the single latch predecessor.  Remove
 546         case of header with just condition.
 547         (ch_base::copy_headers): Exclude infinite loops from any
 548         processing.
 549         (pass_ch::execute): Record exits.
 550
 551 2018-04-26  Richard Biener  <rguenther@suse.de>
 552
 553         * tree-vect-data-refs.c (vect_get_data_access_cost): Get
 554         prologue cost vector and pass it to vect_get_load_cost.
 555         (vect_get_peeling_costs_all_drs): Likewise.
 556         (vect_peeling_hash_get_lowest_cost): Likewise.
 557         (vect_enhance_data_refs_alignment): Likewise.
 558
 559 2018-04-26  Richard Biener  <rguenther@suse.de>
 560
 561         PR middle-end/85450
 562         * tree-cfg.c (verify_gimple_assign_unary): Restore proper
 563         checking of integer<->pointer conversions.
 564         * omp-expand.c (expand_omp_for_static_nochunk): Avoid
 565         sign-/zero-extending pointer types.
 566         (expand_omp_for_static_chunk): Likewise.
 567
 568 2018-03-22  Hans-Peter Nilsson  <hp@axis.com>
 569             Jean Lee  <xiaoyur347@gmail.com>
 570
 571         * config/mips/mips.c (mips_asan_shadow_offset): New function.
 572         (TARGET_ASAN_SHADOW_OFFSET): Define.
 573         * config/mips/mips.h (FRAME_GROWS_DOWNWARD): Augment to also be
 574         true for -fsanitize=address.
 575
 576 2018-04-25  Mark Wielaard  <mark@klomp.org>
 577
 578         * dwarf2out.c (file_info_cmp): Sort longer dir prefixes before
 579         shorter ones.
 580
 581 2018-04-25  Jakub Jelinek  <jakub@redhat.com>
 582
 583         * config/i386/i386.md (*x86_mov<mode>cc_0_m1): Use type "alu1" rather
 584         than "alu", remove explicit "memory" and "imm_disp" attributes.
 585         (*x86_mov<mode>cc_0_m1_se, *x86_mov<mode>cc_0_m1_neg): Likewise.
 586
 587         PR middle-end/85414
 588         * simplify-rtx.c (simplify_unary_operation_1) <case SIGN_EXTEND,
 589         case ZERO_EXTEND>: Pass SUBREG_REG (op) rather than op to
 590         gen_lowpart_no_emit.
 591
 592 2018-04-25  Sebastian Peryt  <sebastian.peryt@intel.com>
 593
 594         PR target/85473
 595         * config/i386/i386.c (ix86_expand_builtin): Change memory
 596         operand to XI, extend p0 to Pmode.
 597         * config/i386/i386.md: Change unspec volatile and operand
 598         1 mode to XI, change operand 0 mode to P.
 599
 600 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
 601
 602         * config/nds32/nds32-predicates.c (nds32_can_use_bclr_p): Mask with
 603         GET_MODE_MASK before any checking.
 604         (nds32_can_use_bset_p): Likewise.
 605         (nds32_can_use_btgl_p): Likewise.
 606
 607 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
 608
 609         * config/nds32/nds32-doubleword.md: New define_split pattern for
 610         illegal register number.
 611
 612 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
 613
 614         * config/nds32/nds32.c (nds32_print_operand): Set op_value ealier.
 615
 616 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
 617
 618         * config/nds32/nds32.h (ASM_APP_ON): Add missing newline character.
 619
 620 2018-04-25  Richard Biener  <rguenther@suse.de>
 621
 622         * lto-streamer.h (LTO_major_version): Bump to 8.
 623
 624 2018-04-25  Jakub Jelinek  <jakub@redhat.com>
 625
 626         * BASE-VER: Set to 9.0.0.
 627
 628 2018-04-24  Segher Boessenkool  <segher@kernel.crashing.org>
 629
 630         * config/rs6000/rs6000.c (init_float128_ieee): Fix spelling mistakes
 631         in __abskf2 and __powikf2.
 632
 633 2018-04-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 634
 635         PR target/85512
 636         * config/aarch64/constraints.md (Usg, Usj): New constraints.
 637         * config/aarch64/iterators.md (cmode_simd): New mode attribute.
 638         * config/aarch64/aarch64.md (*aarch64_ashr_sisd_or_int_<mode>3):
 639         Use the above on operand 2.  Reindent.
 640         (*aarch64_lshr_sisd_or_int_<mode>3): Likewise.
 641
 642 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
 643
 644         PR target/85485
 645         * common/config/i386/i386-common.c (ix86_handle_option): Don't
 646         handle OPT_mcet.
 647         * config/i386/i386.opt (mcet): Removed.
 648         * doc/install.texi: Remove -mcet documentation.
 649         * doc/invoke.texi: Likewise.
 650
 651 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
 652
 653         PR target/85485
 654         * doc/install.texi: Remove -mcet from bootstrap-cet.
 655
 656 2018-04-24  Jakub Jelinek  <jakub@redhat.com>
 657
 658         PR target/85511
 659         * config/i386/i386.c (ix86_init_mmx_sse_builtins): Don't define
 660         __builtin_ia32_readeflags_u32 and __builtin_ia32_writeeflags_u32
 661         if TARGET_64BIT.
 662
 663         PR target/85503
 664         * config/rs6000/rs6000-p8swap.c (const_load_sequence_p): Punt if
 665         const_vector is not CONST_VECTOR or SYMBOL_REF for a constant pool
 666         containing a CONST_VECTOR.
 667
 668 2018-04-24  Cesar Philippidis  <cesar@codesourcery.com>
 669
 670         * doc/install.texi: Update newlib dependency for nvptx.
 671
 672 2018-04-24  Jakub Jelinek  <jakub@redhat.com>
 673
 674         PR target/85508
 675         * config/i386/i386.c (ix86_expand_vector_init_one_var): Use UINTVAL
 676         instead of INTVAL when shifting x left.
 677
 678 2018-04-24  Andreas Krebbel  <krebbel@linux.ibm.com>
 679
 680         PR tree-optimization/85478
 681         * tree-vect-loop.c (vect_analyze_loop_2): Do not call
 682         vect_grouped_store_supported for single element vectors.
 683
 684 2018-04-24  Richard Biener  <rguenther@suse.de>
 685
 686         PR target/85491
 687         * config/i386/i386.c (ix86_add_stmt_cost): Restrict strided
 688         load cost increase to the case of non-constant step.
 689
 690 2018-04-24  Jakub Jelinek  <jakub@redhat.com>
 691
 692         PR target/84828
 693         * reg-stack.c (move_for_stack_reg): Don't fail assertion about dead
 694         destination if any_malformed_asm.
 695
 696 2018-04-23  Eric Botcazou  <ebotcazou@adacore.com>
 697
 698         PR middle-end/85496
 699         * expr.c (store_field): In the bitfield case, if the value comes from
 700         a function call and is returned in registers by means of a PARALLEL,
 701         do not change the mode of the temporary unless BLKmode and VOIDmode.
 702
 703 2018-04-23  Andrey Belevantsev  <abel@ispras.ru>
 704
 705         PR rtl-optimization/85423
 706         * sel-sched-ir.c (has_dependence_note_mem_dep): Only discard
 707         dependencies to debug insns when the previous insn is non-debug.
 708
 709 2018-04-23  Claudiu Zissulescu  <claziss@synopsys.com>
 710
 711         * config/arc/arc.md ("vunspec"): Delete it, unify all the unspec
 712         enums into a single definition.
 713         (fls): Fix predicates and printing.
 714         (seti): Likewise.
 715
 716 2018-04-23  Claudiu Zissulescu  <claziss@synopsys.com>
 717
 718         * config/arc/arc-protos.h (check_if_valid_sleep_operand): Remove.
 719         * config/arc/arc.c (arc_expand_builtin): Sleep accepts registers
 720         and short u6 immediate.
 721         (check_if_valid_sleep_operand): Remove.
 722         * config/arc/arc.md (Sleep): Accepts registers and u6 immediates.
 723
 724 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
 725
 726         * config/nds32/nds32.c (nds32_compute_stack_frame): Consider
 727         flag_always_save_lp condition.
 728         * config/nds32/nds32.opt (malways-save-lp): New option.
 729
 730 2018-04-22  Shiva Chen  <shiva0217@gmail.com>
 731
 732         * config/nds32/nds32-protos.h (nds32_use_load_post_increment): Declare.
 733         * config/nds32/nds32.c (nds32_use_load_post_increment): New.
 734         * config/nds32/nds32.h
 735         (USE_LOAD_POST_INCREMENT, USE_LOAD_POST_DECREMENT): Define.
 736         (USE_STORE_POST_INCREMENT, USE_STORE_POST_DECREMENT): Define.
 737
 738 2018-04-22  Shiva Chen  <shiva0217@gmail.com>
 739
 740         * config/nds32/nds32-protos.h (nds32_ls_333_p): Remove.
 741         * config/nds32/nds32.c (nds32_ls_333_p): Remove.
 742
 743 2018-04-22  Shiva Chen  <shiva0217@gmail.com>
 744             Chung-Ju Wu  <jasonwucj@gmail.com>
 745
 746         * config/nds32/nds32-protos.h (nds32_case_vector_shorten_mode):
 747         Declare.
 748         * config/nds32/nds32.c (nds32_case_vector_shorten_mode): New function.
 749         * config/nds32/nds32.h (CASE_VECTOR_SHORTEN_MODE): Modify.
 750
 751 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
 752
 753         * config/nds32/nds32.c (nds32_compute_stack_frame): Fix wrong value.
 754
 755 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
 756
 757         * config/nds32/nds32-protos.h (nds32_data_alignment,
 758         nds32_local_alignment): Declare.
 759         * config/nds32/nds32.c (nds32_data_alignment, nds32_constant_alignment,
 760         nds32_local_alignment): New functions.
 761         (TARGET_CONSTANT_ALIGNMENT): Define.
 762         * config/nds32/nds32.h (DATA_ALIGNMENT, LOCAL_ALIGNMENT): Define.
 763
 764 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
 765
 766         * config/nds32/nds32.c
 767         (TARGET_HARD_REGNO_MODE_OK): Move to the bottom of file.
 768         (TARGET_MODES_TIEABLE_P): Likewise.
 769
 770 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
 771
 772         * config/nds32/nds32.c (nds32_asm_file_start): Display optimization
 773         level Ofast and Og.
 774
 775 2018-04-22  Monk Chiang  <sh.chiang04@gmail.com>
 776             Chung-Ju Wu  <jasonwucj@gmail.com>
 777
 778         * config/nds32/constants.md (unspec_volatile_element): Add enum values
 779         for unaligned access.
 780         * config/nds32/nds32-intrinsic.c: Implementation of expanding
 781         unaligned access.
 782         * config/nds32/nds32-intrinsic.md: Likewise.
 783         * config/nds32/nds32_intrinsic.h: Likewise.
 784         * config/nds32/nds32.h (nds32_builtins): Likewise.
 785         * config/nds32/nds32.opt (munaligned-access): New option.
 786         * config/nds32/nds32.c (nds32_asm_file_start): Display
 787         flag_unaligned_access status.
 788
 789 2018-04-20  Kito Cheng  <kito.cheng@gmail.com>
 790
 791         * config/riscv/elf.h (LINK_SPEC): Pass --no-relax if
 792         -mno-relax is present.
 793         * config/riscv/linux.h (LINK_SPEC): Ditto.
 794
 795 2018-04-20  Martin Sebor  <msebor@redhat.com>
 796
 797         PR c/85365
 798         * gimple-fold.c (gimple_fold_builtin_strcpy): Suppress -Wrestrict
 799         for null pointers.
 800         (gimple_fold_builtin_stxcpy_chk): Same.
 801         * gimple-ssa-warn-restrict.c (check_bounds_or_overlap): Same.
 802
 803 2018-04-20  Michael Meissner  <meissner@linux.ibm.com>
 804
 805         PR target/85456
 806         * config/rs6000/rs6000.c (init_float128_ieee): Add support to call
 807         __powikf2 when long double is IEEE 128-bit.
 808
 809 2018-04-20  Kito Cheng  <kito.cheng@gmail.com>
 810
 811         * config/riscv/riscv.c (riscv_first_stack_step): Round up min
 812         step to make sure stack always aligned.
 813
 814 2018-04-20  Carl Love  <cel@us.ibm.com>
 815
 816         PR target/83402
 817         * config/rs6000/rs6000-c.c (rs6000_gimple_fold_builtin): Add
 818         size check for arg0.
 819
 820 2018-04-20  Nathan Sidwell  <nathan@codesourcery.com>
 821             Tom de Vries  <tom@codesourcery.com>
 822
 823         PR target/85445
 824         * config/nvptx/nvptx.c (nvptx_emit_forking, nvptx_emit_joining):
 825         Emit insns for calls too.
 826         (nvptx_find_par): Always look for worker-level predecessor insn.
 827         (nvptx_propagate): Add is_call parm, return bool.  Copy frame for
 828         calls.
 829         (nvptx_vpropagate, nvptx_wpropagate): Adjust.
 830         (nvptx_process_pars): Propagate frames for calls.
 831
 832 2018-04-20  H.J. Lu  <hongjiu.lu@intel.com>
 833
 834         PR target/85469
 835         * common/config/i386/i386-common.c (OPTION_MASK_ISA_IBT_SET):
 836         Removed.
 837         (OPTION_MASK_ISA_IBT_UNSET): Likewise.
 838         (ix86_handle_option): Don't handle OPT_mibt.
 839         * config/i386/cet.h: Check __CET__ instead of __IBT__ and
 840         __SHSTK__.
 841         * config/i386/driver-i386.c (host_detect_local_cpu): Remove
 842         has_ibt and ibt.
 843         * config/i386/i386-c.c (ix86_target_macros_internal): Don't
 844         check OPTION_MASK_ISA_IBT nor flag_cf_protection.
 845         (ix86_target_macros): Define __CET__ with flag_cf_protection
 846         for -fcf-protection.
 847         * config/i386/i386.c (isa2_opts): Remove -mibt.
 848         * config/i386/i386.h (TARGET_IBT): Removed.
 849         (TARGET_IBT_P): Likewise.
 850         (ix86_valid_target_attribute_inner_p): Don't check OPT_mibt.
 851         * config/i386/i386.md (nop_endbr): Don't check TARGET_IBT.
 852         * config/i386/i386.opt (mcet): Update help message.
 853         (mshstk): Likewise.
 854         (mibt): Removed.
 855         * doc/invoke.texi: Remove -mibt.  Document __CET__.  Document
 856         -mcet as an alias for -mshstk.
 857
 858 2018-04-20  Richard Biener <rguenther@suse.de>
 859
 860         PR middle-end/85475
 861         * match.pd ((X * CST) * Y -> (X * Y) * CST): Avoid exponential
 862         complexity by forcing a single use of the multiply operand.
 863
 864 2018-04-20  Martin Jambor  <mjambor@suse.cz>
 865
 866         ipa/85449
 867         * ipa-cp.c (cgraph_edge_brings_value_p): Move check for self-feeding
 868         recursion dependency to only apply to non-clones.
 869
 870 2018-04-20  Martin Jambor  <mjambor@suse.cz>
 871
 872         ipa/85447
 873         * ipa-cp.c (create_specialized_node): Check that clones of
 874         self-recursive edges exist during IPA-CP.
 875
 876 2018-04-19  Toon Moene  <toon@moene.org>
 877
 878         * doc/invoke.texi: Add -floop-unroll-and-jam to options enabled
 879         by -O3.
 880
 881 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
 882
 883         PR tree-optimization/85467
 884         * fold-const.c (fold_ternary_loc) <case BIT_FIELD_REF>: Use
 885         VECTOR_TYPE_P macro.  If type is vector type, VIEW_CONVERT_EXPR the
 886         VECTOR_CST element to type.
 887
 888 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
 889
 890         PR target/85397
 891         * config/i386/i386.h (STACK_SAVEAREA_MODE): New.
 892         * config/i386/i386.md (builtin_setjmp_setup): Removed.
 893         (builtin_longjmp): Likewise.
 894         (save_stack_nonlocal): New pattern.
 895         (restore_stack_nonlocal): Likewise.
 896
 897 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
 898
 899         PR target/85404
 900         * config/i386/cet.c (file_end_indicate_exec_stack_and_cet):
 901         Replace ASM_OUTPUT_LABEL with fprintf.
 902
 903 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
 904
 905         PR target/85417
 906         * config/i386/cet.c (file_end_indicate_exec_stack_and_cet):
 907         Check flag_cf_protection instead of TARGET_IBT and TARGET_SHSTK.
 908         * config/i386/i386-c.c (ix86_target_macros_internal): Also
 909         define __IBT__ and __SHSTK__ for -fcf-protection.
 910         * config/i386/i386.c (pass_insert_endbranch::gate): Don't check
 911         TARGET_IBT.
 912         (ix86_trampoline_init): Likewise.
 913         (x86_output_mi_thunk): Likewise.
 914         (ix86_notrack_prefixed_insn_p): Likewise.
 915         (ix86_option_override_internal): Don't disallow -fcf-protection.
 916         * config/i386/i386.md (rdssp<mode>): Also enable for
 917         -fcf-protection.
 918         (incssp<mode>): Likewise.
 919         (nop_endbr): Likewise.
 920         * config/i386/i386.opt (mcet): Change help message to built-in
 921         functions only.
 922         (mibt): Likewise.
 923         (mshstk): Likewise.
 924         * doc/invoke.texi: Remove -mcet, -mibt and -mshstk condition
 925         on -fcf-protection.  Change -mcet, -mibt and -mshstk to only
 926         enable CET built-in functions.
 927
 928 2018-04-19  Sebastian Peryt  <sebastian.peryt@intel.com>
 929
 930         * common/config/i386/i386-common.c
 931         (OPTION_MASK_ISA_MOVDIRI_SET, OPTION_MASK_ISA_MOVDIR64B_SET,
 932         OPTION_MASK_ISA_MOVDIRI_UNSET,
 933         OPTION_MASK_ISA_MOVDIR64B_UNSET): New defines.
 934         (ix86_handle_option): Handle -mmovdiri and -mmovdir64b.
 935         * config.gcc (movdirintrin.h): New header.
 936         * config/i386/cpuid.h (bit_MOVDIRI,
 937         bit_MOVDIR64B): New bits.
 938         * config/i386/driver-i386.c (host_detect_local_cpu): Detect -mmovdiri
 939         and -mmvodir64b.
 940         * config/i386/i386-builtin-types.def ((VOID, PUNSIGNED, UNSIGNED),
 941         (VOID, PVOID, PCVOID)): New function types.
 942         * config/i386/i386-builtin.def (__builtin_ia32_directstoreu_u32,
 943         __builtin_ia32_directstoreu_u64,
 944          __builtin_ia32_movdir64b): New builtins.
 945         * config/i386/i386-c.c (__MOVDIRI__, __MOVDIR64B__): New.
 946         * config/i386/i386.c (ix86_target_string): Added -mmovdir64b
 947         and -mmovdiri.
 948         (ix86_valid_target_attribute_inner_p): Ditto.
 949         (ix86_expand_special_args_builtin): Added VOID_FTYPE_PUNSIGNED_UNSIGNED
 950         and VOID_FTYPE_PUNSIGNED_UNSIGNED.
 951         (ix86_expand_builtin): Expand IX86_BUILTIN_MOVDIR64B.
 952         * config/i386/i386.h (TARGET_MOVDIRI, TARGET_MOVDIRI_P,
 953         TARGET_MOVDIR64B, TARGET_MOVDIR64B_P): New.
 954         * config/i386/i386.md (UNSPECV_MOVDIRI, UNSPECV_MOVDIR64B): New.
 955         (movdiri<mode>, movdir64b_<mode>): New.
 956         * config/i386/i386.opt: Add -mmovdiri and -mmovdir64b.
 957         * config/i386/immintrin.h: Include movdirintrin.h.
 958         * config/i386/movdirintrin.h: New file.
 959         * doc/invoke.texi: Added -mmovdiri and -mmovdir64b.
 960
 961 2018-04-19  Richard Biener  <rguenther@suse.de>
 962
 963         PR middle-end/85455
 964         * cfg.c (clear_bb_flags): When loop state says we have
 965         marked irreducible regions also preserve BB_IRREDUCIBLE_LOOP.
 966
 967 2018-04-19  Richard Biener  <rguenther@suse.de>
 968
 969         PR tree-optimization/84737
 970         * tree-vect-data-refs.c (vect_copy_ref_info): New function
 971         copying restrict info.
 972         (vect_setup_realignment): Use it.
 973         * tree-vectorizer.h (vect_copy_ref_info): Declare.
 974         * tree-vect-stmts.c (vectorizable_store): Copy ref info from
 975         the first DR to all generated stores.
 976         (vectorizable_load): Likewise for loads.
 977
 978 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
 979
 980         PR tree-optimization/85446
 981         * match.pd ((intptr_t) x eq/ne CST to x eq/ne (typeof x) cst): Require
 982         the integral and pointer types to have the same precision.
 983
 984         * doc/install.texi: Document --disable-cet being the default and
 985         --enable-cet=auto.
 986
 987 2018-04-18  Martin Liska  <mliska@suse.cz>
 988
 989         * ipa-devirt.c (odr_subtypes_equivalent_p): Fix GNU coding
 990         style.
 991
 992 2018-04-18  Martin Liska  <mliska@suse.cz>
 993
 994         Revert
 995         2018-03-02  Eric Botcazou  <ebotcazou@adacore.com>
 996
 997         PR ipa/83983
 998         * ipa-devirt.c (odr_subtypes_equivalent_p): Get the ODR type of both
 999         arguments if they are comparable.
1000
1001 2018-04-18  Martin Liska  <mliska@suse.cz>
1002
1003         Revert
1004         2018-03-13  Eric Botcazou  <ebotcazou@adacore.com>
1005
1006         PR lto/84805
1007         * ipa-devirt.c (odr_subtypes_equivalent_p): Do not get the ODR type of
1008         incomplete types.
1009
1010 2018-04-18  H.J. Lu  <hongjiu.lu@intel.com>
1011
1012         PR target/85388
1013         * config/i386/i386.c (ix86_expand_split_stack_prologue): Insert
1014         ENDBR after calling __morestack.
1015
1016 2018-04-18  David Malcolm  <dmalcolm@redhat.com>
1017
1018         PR jit/85384
1019         * configure.ac (gcc-driver-name.h): Honor --with-gcc-major-version
1020         by using gcc_base_ver to generate a gcc_driver_version, and use
1021         it when generating GCC_DRIVER_NAME.
1022         * configure: Regenerate.
1023
1024 2018-04-18  Jakub Jelinek  <jakub@redhat.com>
1025
1026         PR target/81084
1027         * config.gcc: Obsolete powerpc*-*-*spe*.
1028
1029 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
1030
1031         PR debug/84637
1032         * dbxout.c (dbxout_int): Perform negation in unsigned int type.
1033         (stabstr_D): Change type of unum from unsigned int to
1034         unsigned HOST_WIDE_INT.  Perform negation in unsigned HOST_WIDE_INT
1035         type.
1036
1037 2018-04-17  Jim Wilson  <jimw@sifive.com>
1038
1039         PR 84856
1040         * config/riscv/riscv.c (riscv_compute_frame_info): Add calls to
1041         RISCV_STACK_ALIGN when using outgoing_args_size and pretend_args_size.
1042         Set arg_pointer_offset after using pretend_args_size.
1043
1044 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
1045
1046         PR rtl-optimization/85431
1047         * dse.c (record_store): Ignore zero width stores.
1048
1049         PR sanitizer/85230
1050         * asan.c (handle_builtin_stack_restore): Adjust comment.  Emit
1051         __asan_allocas_unpoison call and last_alloca_addr = new_sp before
1052         __builtin_stack_restore rather than after it.
1053         * builtins.c (expand_asan_emit_allocas_unpoison): Pass
1054         arg1 + (virtual_dynamic_stack_rtx - stack_pointer_rtx) as second
1055         argument instead of virtual_dynamic_stack_rtx.
1056
1057 2018-04-17  Kelvin Nilsen  <kelvin@gcc.gnu.org>
1058
1059         * config/rs6000/rs6000-protos.h (rs6000_builtin_is_supported_p):
1060         New prototype.
1061         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
1062         Add note to error message to explain internal mapping of overloaded
1063         built-in function name to non-overloaded built-in function name.
1064         * config/rs6000/rs6000.c (rs6000_builtin_is_supported_p): New
1065         function.
1066
1067 2018-04-17  Michael Meissner  <meissner@linux.vnet.ibm.com>
1068
1069         PR target/85424
1070         * config/rs6000/rs6000.md (pack<mode>): Do not try handle a pack
1071         where the inputs overlap with the output.
1072
1073 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
1074
1075         * config/i386/sse.md (vec_extract_lo_<mode><mask_name>): Add
1076         (=v, v) alternative and explicit "memory" attribute.
1077         (vec_extract_lo_<mode><mask_name>): Likewise.  Also add
1078         "type", "prefix", "prefix_extra", "length_immediate" and "mode"
1079         attributes.
1080         (vec_extract_lo_<mode><mask_name>): Add (=v, v) alternative and use
1081         "sselog1" type instead of "sselog".
1082         (vec_extract_hi_<mode><mask_name>): Use "sselog1" type instead of
1083         "sselog".  Remove explicit "memory" attribute.
1084         (vec_extract_lo_v32hi): Add (=v, v) alternative and explicit "memory",
1085         "type", "prefix", "prefix_extra", "length_immediate" and "mode"
1086         attributes.
1087         (vec_extract_hi_v32hi): Merge all alternatives into one, use
1088         "sselog1" type instead of "sselog".  Remove explicit "memory"
1089         attribute.
1090         (vec_extract_hi_v16hi): Merge each pair of alternatives into one,
1091         use "sselog1" type instead of "sselog".  Remove explicit "memory"
1092         attribute.
1093         (vec_extract_lo_v64qi): Add (=v, v) alternative and explicit "memory",
1094         "type", "prefix", "prefix_extra", "length_immediate" and "mode"
1095         attributes.
1096         (vec_extract_hi_v64qi): Merge all alternatives into one, use
1097         "sselog1" type instead of "sselog".  Remove explicit "memory"
1098         attribute.
1099         (vec_extract_hi_v32qi): Merge each pair of alternatives into one,
1100         use "sselog1" type instead of "sselog".  Remove explicit "memory"
1101         attribute.
1102
1103         PR target/85430
1104         * config/i386/i386.md (*ashlqi3_1_slp): Use alu1 type instead of alu.
1105
1106         PR middle-end/85414
1107         * rtlhooks.c (gen_lowpart_if_possible): Don't call gen_lowpart_SUBREG
1108         on a SUBREG.
1109
1110 2018-04-17  Martin Jambor  <mjambor@suse.cz>
1111
1112         PR ipa/85421
1113         * ipa-cp.c (create_specialized_node): Call
1114         expand_all_artificial_thunks if necessary.
1115
1116 2018-04-17  Martin Liska  <mliska@suse.cz>
1117
1118         PR lto/85405
1119         * ipa-devirt.c (odr_types_equivalent_p): Remove trailing
1120         in message, remote space in between '_G' and '('.
1121
1122 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
1123
1124         PR target/85281
1125         * config/i386/sse.md (reduces<mode><mask_scalar_name>,
1126         avx512f_vmcmp<mode>3<round_saeonly_name>,
1127         avx512f_vmcmp<mode>3_mask<round_saeonly_name>,
1128         avx512f_sgetexp<mode><mask_scalar_name><round_saeonly_scalar_name>,
1129         avx512f_rndscale<mode><round_saeonly_name>,
1130         avx512dq_ranges<mode><mask_scalar_name><round_saeonly_scalar_name>,
1131         avx512f_vgetmant<mode><mask_scalar_name><round_saeonly_scalar_name>):
1132         Use %<iptr>2 instead of %2 for -masm=intel.
1133         (avx512f_vcvtss2usi<round_name>, avx512f_vcvtss2usiq<round_name>,
1134         avx512f_vcvttss2usi<round_saeonly_name>,
1135         avx512f_vcvttss2usiq<round_saeonly_name>): Use %k1 instead of %1 for
1136         -masm=intel.
1137         (avx512f_vcvtsd2usi<round_name>, avx512f_vcvtsd2usiq<round_name>,
1138         avx512f_vcvttsd2usi<round_saeonly_name>,
1139         avx512f_vcvttsd2usiq<round_saeonly_name>, ufloatv2siv2df2<mask_name>):
1140         Use %q1 instead of %1 for -masm=intel.
1141         (avx512f_sfixupimm<mode><sd_maskz_name><round_saeonly_name>,
1142         avx512f_sfixupimm<mode>_mask<round_saeonly_name>): Use %<iptr>3 instead
1143         of %3 for -masm=intel.
1144         (sse2_shufpd_v2df_mask): Fix a typo, change %{6%} to %{%6%} for
1145         -masm=intel.
1146         (*avx512vl_<code>v2div2qi2_store): Use %w0 instead of %0 for
1147         -masm=intel.
1148         (*avx512vl_<code><mode>v4qi2_store): Use %k0 instead of %0 for
1149         -masm=intel.
1150         (avx512vl_<code><mode>v4qi2_mask_store): Use a single pattern with
1151         %k0 and %1 for -masm=intel rather than two patterns, one with %0 and
1152         %g1.
1153         (*avx512vl_<code><mode>v8qi2_store): Use %q0 instead of %0 for
1154         -masm=intel.
1155         (avx512vl_<code><mode>v8qi2_mask_store): Use a single pattern with
1156         %q0 and %1 for -masm=intel rather than two patterns, one with %0 and
1157         %g1 and one with %0 and %1.
1158         (avx512er_vmrcp28<mode><round_saeonly_name>,
1159         avx512er_vmrsqrt28<mode><round_saeonly_name>): Use %<iptr>1 instead of
1160         %1 for -masm=intel.
1161         (avx5124fmaddps_4fmaddps_mask, avx5124fmaddps_4fmaddss_mask,
1162         avx5124fmaddps_4fnmaddps_mask, avx5124fmaddps_4fnmaddss_mask,
1163         avx5124vnniw_vp4dpwssd_mask, avx5124vnniw_vp4dpwssds_mask): Swap order
1164         of %0 and %{%4%} for -masm=intel.
1165         (avx5124fmaddps_4fmaddps_maskz, avx5124fmaddps_4fmaddss_maskz,
1166         avx5124fmaddps_4fnmaddps_maskz, avx5124fmaddps_4fnmaddss_maskz,
1167         avx5124vnniw_vp4dpwssd_maskz, avx5124vnniw_vp4dpwssds_maskz): Swap
1168         order of %0 and %{%5%}%{z%} for -masm=intel.
1169
1170 2018-04-17  Jan Hubicka  <jh@suse.cz>
1171
1172         PR lto/85405
1173         * ipa-devirt.c (odr_types_equivalent_p): Handle bit fields.
1174
1175 2018-04-17  Martin Liska  <mliska@suse.cz>
1176
1177         PR ipa/85329
1178         * multiple_target.c (create_dispatcher_calls): Set apostrophes
1179         for target_clone error message.  Make default implementation
1180         clone to be a local declaration.
1181         (separate_attrs): Add new argument and check for an empty
1182         string.
1183         (expand_target_clones): Handle it.
1184         (ipa_target_clone): Make redirection just for target_clones
1185         functions.
1186
1187 2018-04-16  Cesar Philippidis  <cesar@codesourcery.com>
1188             Tom de Vries  <tom@codesourcery.com>
1189
1190         PR middle-end/84955
1191         * omp-expand.c (expand_oacc_for): Add dummy false branch for
1192         tiled basic blocks without omp continue statements.
1193
1194 2018-04-16  Aaron Sawdey  <acsawdey@linux.ibm.com>
1195
1196         PR target/83660
1197         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Mark
1198         vec_extract expression as having side effects to make sure it gets
1199         a cleanup point.
1200
1201 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
1202
1203         PR target/85403
1204         * config/i386/i386.c (get_builtin_code_for_version): Check
1205         error_mark_node.
1206
1207 2018-04-16  Olga Makhotina  <olga.makhotina@intel.com>
1208
1209         PR target/84331
1210         * gcc/config.gcc: Support "skylake".
1211         * gcc/config/i386/i386-c.c (ix86_target_macros_internal): Handle
1212         PROCESSOR_SKYLAKE.
1213         * gcc/config/i386/i386.c (m_SKYLAKE): Define.
1214         (processor_target_table): Add "skylake".
1215         (ix86_option_override_internal): Add "skylake".
1216         (get_builtin_code_for_version): Handle PROCESSOR_SKYLAKE,
1217         PROCESSOR_CANNONLAKE.
1218         (get_builtin_code_for_version): Fix priority for
1219         PROCESSOR_ICELAKE_CLIENT, PROCESSOR_ICELAKE_SERVER,
1220         PROCESSOR_SKYLAKE-AVX512.
1221         * gcc/config/i386/i386.h (processor_costs): Define TARGET_SKYLAKE.
1222         (processor_type): Add PROCESSOR_SKYLAKE.
1223
1224 2018-04-16  Paolo Carlini  <paolo.carlini@oracle.com>
1225             Jason Merrill  <jason@redhat.com>
1226
1227         PR c++/85112
1228         * convert.c (convert_to_integer_1): Use direct recursion for
1229         enumeral types and types with a precision less than the number
1230         of bits in their mode.
1231
1232 2018-04-16  Julia Koval  <julia.koval@intel.com>
1233
1234         PR target/84413
1235         * config/i386/x86-tune.def (X86_TUNE_SSE_UNALIGNED_LOAD_OPTIMAL,
1236         X86_TUNE_SSE_UNALIGNED_STORE_OPTIMAL): Add m_SKYLAKE_AVX512
1237
1238 2018-04-14  Segher Boessenkool  <segher@kernel.crashing.org>
1239
1240         PR target/85293
1241         * config/rs6000/rs6000.opt (mdirect-move): Make deprecated.
1242         * doc/invoke.texi (RS/6000 and PowerPC Options): Remove -mdirect-move
1243         and -mno-direct-move.
1244
1245 2018-04-13  Paul A. Clarke  <pc@us.ibm.com>
1246
1247         PR target/83402
1248         * config/rs6000/emmintrin.h (_mm_slli_epi{16,32,64}):
1249         Ensure that vec_splat_s32 is only called with 0 <= shift < 16.
1250         Ensure negative shifts result in {0}.
1251
1252 2018-04-13  Vladimir Makarov  <vmakarov@redhat.com>
1253
1254         PR rtl-optimization/79916
1255         * config/rs6000/rs6000.c (rs6000_emit_move): Use assigned hard
1256         regs (if any) to define how to gnerate SD moves when LRA is in
1257         progress.
1258
1259 2018-04-13  Jakub Jelinek  <jakub@redhat.com>
1260
1261         PR rtl-optimization/85393
1262         * except.h (expand_dw2_landing_pad_for_region): Remove declaration.
1263         * except.c (expand_dw2_landing_pad_for_region): Make static.
1264         * bb-reorder.c (fix_up_crossing_landing_pad): In new_bb emit just
1265         a label and unconditional jump to old_bb, rather than
1266         expand_dw2_landing_pad_for_region insn(s) and jump to single_succ
1267         basic block.
1268
1269         PR rtl-optimization/85376
1270         * simplify-rtx.c (simplify_const_unary_operation): For CLZ and CTZ and
1271         zero op0, if C?Z_DEFINED_VALUE_AT_ZERO is false, return NULL_RTX
1272         instead of a specific value.
1273
1274 2018-04-13  Jan Hubicka  <hubicka@ucw.cz>
1275             Bin Cheng  <bin.cheng@arm.com>
1276
1277         PR tree-optimization/82965
1278         PR tree-optimization/83991
1279         * cfgloopanal.c (expected_loop_iterations_unbounded): Add
1280         by_profile_only parameter.
1281         * cfgloopmanip.c (scale_loop_profile): Further scale loop's profile
1282         information if the loop was predicted to iterate too many times.
1283         * cfgloop.h (expected_loop_iterations_unbounded): Update prototype
1284
1285 2018-04-13  Jan Hubicka  <hubicka@ucw.cz>
1286
1287         PR lto/71991
1288         * config/i386/i386.c (ix86_can_inline_p): Allow safe transitions for
1289         always inline.
1290
1291 2018-04-13  Martin Liska  <mliska@suse.cz>
1292             Jakub Jelinek  <jakub@redhat.com>
1293
1294         PR middle-end/81657
1295         * expr.h (enum block_op_methods): Add BLOCK_OP_NO_LIBCALL_RET.
1296         * expr.c (emit_block_move_hints): Handle BLOCK_OP_NO_LIBCALL_RET.
1297         * builtins.c (expand_builtin_memory_copy_args): Use
1298         BLOCK_OP_NO_LIBCALL_RET method for mempcpy with non-ignored target,
1299         handle dest_addr == pc_rtx.
1300
1301 2018-04-12  Segher Boessenkool  <segher@kernel.crashing.org>
1302
1303         PR target/85291
1304         * config/rs6000/rs6000.md (fix_trunc<mode>si2): Use legacy code if
1305         asked to not generate direct moves.
1306         (fix_trunc<mode>si2_stfiwx): Similar.
1307         (fix_trunc<mode>si2_internal): Similar.
1308
1309 2018-04-12  Jakub Jelinek  <jakub@redhat.com>
1310
1311         PR debug/83157
1312         * var-tracking.c (add_stores): Handle STRICT_LOW_PART SET_DEST.
1313         * cselib.c (cselib_record_sets): For STRICT_LOW_PART dest,
1314         lookup if dest in some wider mode is known to be const0_rtx and
1315         if so, record permanent equivalence for it to be ZERO_EXTEND of
1316         the narrower mode destination.
1317
1318 2018-04-12  Cesar Philippidis  <cesar@codesourcery.com>
1319
1320         * lto-streamer-out.c (output_function): Revert 259346.
1321         * omp-expand.c (expand_oacc_for): Likewise.
1322
1323 2018-04-12  Alexander Monakov  <amonakov@ispras.ru>
1324
1325         PR rtl-optimization/85354
1326         * sel-sched-ir.c (sel_init_pipelining): Move cfg_cleanup call...
1327         * sel-sched.c (sel_global_init): ... here.
1328
1329 2018-04-12  Eric Botcazou  <ebotcazou@adacore.com>
1330
1331         PR target/85238
1332         * lto-wrapper.c (debug_objcopy): Open the files in binary mode.
1333         * dwarf2out.c (dwarf2out_early_finish): Do not generate assembly in LTO
1334         mode for PE-COFF targets.
1335         * config/i386/i386-protos.h (i386_pe_asm_lto_start): Declare.
1336         (i386_pe_asm_lto_end): Likewise.
1337         * config/i386/cygming.h (TARGET_ASM_LTO_START): Define.
1338         (TARGET_ASM_LTO_END): Likewise.
1339         * config/i386/winnt.c (saved_debug_info_level): New static variable.
1340         (i386_pe_asm_lto_start): New function.
1341         (i386_pe_asm_lto_end): Likewise.
1342
1343 2018-04-12  Cesar Philippidis  <cesar@codesourcery.com>
1344             Richard Biener  <rguenther@suse.de>
1345
1346         PR middle-end/84955
1347         * lto-streamer-out.c (output_function): Fix CFG loop state before
1348         streaming out.
1349         * omp-expand.c (expand_oacc_for): Handle calls to internal
1350         functions like regular functions.
1351
1352 2018-04-12  Richard Biener  <rguenther@suse.de>
1353
1354         PR lto/85371
1355         * dwarf2out.c (init_sections_and_labels): Use debug_line_section[_label]
1356         for the early LTO debug to properly generate references to it
1357         during DIE emission.  Do not re-use that for the skeleton for
1358         split-dwarf.
1359         (dwarf2out_early_finish): Likewise.
1360
1361 2018-04-12  Jakub Jelinek  <jakub@redhat.com>
1362
1363         PR target/85328
1364         * config/i386/sse.md
1365         (<mask_codefor>avx512dq_vextract<shuffletype>64x2_1<mask_name> split,
1366         <mask_codefor>avx512f_vextract<shuffletype>32x4_1<mask_name> split,
1367         vec_extract_lo_<mode><mask_name> split, vec_extract_lo_v32hi,
1368         vec_extract_lo_v64qi): For non-AVX512VL if input is xmm16+ reg
1369         and output is a reg, avoid creating invalid lowpart subreg, but
1370         instead split into a 512-bit move.  Don't split if not AVX512VL,
1371         input is xmm16+ reg and output is a mem.
1372         (vec_extract_lo_<mode><mask_name>, vec_extract_lo_v32hi,
1373         vec_extract_lo_v64qi): Don't require split if not AVX512VL, input is
1374         xmm16+ reg and output is a mem.
1375
1376 2018-04-12  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
1377
1378         * config/s390/s390.c (s390_output_indirect_thunk_function): Check
1379         also for flag_dwarf2_cfi_asm.
1380
1381 2018-04-12  Jakub Jelinek  <jakub@redhat.com>
1382
1383         PR rtl-optimization/85342
1384         * regcprop.c (copyprop_hardreg_forward_1): Remove replaced array, use
1385         a bool scalar var inside of the loop instead.  Don't try to update
1386         recog_data.operand after failed apply_change_group.
1387
1388 2018-04-12  Tom de Vries  <tom@codesourcery.com>
1389
1390         PR target/85296
1391         * config/nvptx/nvptx.c (flexible_array_member_type_p): New function.
1392         (nvptx_assemble_decl_begin): Add undefined param.  Declare undefined
1393         array with flexible array member as array without given dimension.
1394         (nvptx_assemble_undefined_decl): Set nvptx_assemble_decl_begin call
1395         argument for undefined param to true.
1396
1397 2018-04-11  Aaron Sawdey  <acsawdey@linux.ibm.com>
1398
1399         PR target/85321
1400         * doc/invoke.texi (RS/6000 and PowerPC Options): Document options
1401         -mcall- and -mtraceback=. Remove options -mabi=spe and -mabi=no-spe
1402         from PowerPC section.
1403         * config/rs6000/sysv4.opt (mcall-): Improve help text.
1404         * config/rs6000/rs6000.opt (mblock-compare-inline-limit=): Trim
1405         help text that is too long.
1406         * config/rs6000/rs6000.opt (mblock-compare-inline-loop-limit=): Trim
1407         help text that is too long.
1408         * config/rs6000/rs6000.opt (mstring-compare-inline-limit=): Trim
1409         help text that is too long.
1410
1411 2018-04-11  Uros Bizjak  <ubizjak@gmail.com>
1412
1413         * config/alpha/alpha.md (stack_probe_internal): Rename
1414         from "probe_stack".  Update all callers.
1415
1416 2018-04-11  Alexander Monakov  <amonakov@ispras.ru>
1417
1418         PR rtl-optimization/84566
1419         * sched-deps.c (sched_analyze_insn): Check deps->readonly when invoking
1420         sched_macro_fuse_insns.
1421
1422 2018-04-11  Alexander Monakov  <amonakov@ispras.ru>
1423
1424         PR target/84301
1425         * sched-rgn.c (add_branch_dependences): Move sel_sched_p check here...
1426         (compute_block_dependences): ... from here.
1427
1428 2018-04-11  Jakub Jelinek  <jakub@redhat.com>
1429
1430         PR tree-optimization/85331
1431         * vec-perm-indices.h (vec_perm_indices::clamp): Change input type
1432         from int to HOST_WIDE_INT.
1433
1434 2018-04-11  Martin Jambor  <mjambor@suse.cz>
1435
1436         PR ipa/84149
1437         * ipa-cp.c (propagate_vals_across_pass_through): Expand comment.
1438         (cgraph_edge_brings_value_p): New parameter dest_val, check if it is
1439         not the same as the source val.
1440         (cgraph_edge_brings_value_p): New parameter.
1441         (gather_edges_for_value): Pass destination value to
1442         cgraph_edge_brings_value_p.
1443         (perhaps_add_new_callers): Likewise.
1444         (get_info_about_necessary_edges): Likewise and exclude values brought
1445         only by self-recursive edges.
1446         (create_specialized_node): Redirect only clones of self-calling edges.
1447         (+self_recursive_pass_through_p): New function.
1448         (find_more_scalar_values_for_callers_subset): Use it.
1449         (find_aggregate_values_for_callers_subset): Likewise.
1450         (known_aggs_to_agg_replacement_list): Removed.
1451         (decide_whether_version_node): Re-calculate known constants for all
1452         remaining context clones.
1453
1454 2018-04-11  Richard Biener  <rguenther@suse.de>
1455
1456         PR lto/85339
1457         * dwarf2out.c (dwarf2out_finish): Remove DW_AT_stmt_list attribute
1458         from early DWARF output.
1459         (dwarf2out_early_finish): Output line info unconditionally into
1460         early DWARF and add reference to it.
1461
1462 2018-04-11  Jakub Jelinek  <jakub@redhat.com>
1463
1464         PR target/85281
1465         * config/i386/sse.md (iptr): Add V16SFmode and V8DFmode cases.
1466         (<avx512>_vec_dup<mode><mask_name>): Use a single pattern for modes
1467         other than V2DFmode using iptr mode attribute.
1468         (<avx512>_vec_dup<mode><mask_name>): Use iptr mode attribute.
1469
1470 2018-04-11  Alexander Monakov  <amonakov@ispras.ru>
1471
1472         PR rtl-optimization/84659
1473         * sel-sched-ir.c (sel_init_pipelining): Invoke cleanup_cfg.
1474
1475 2018-04-11  Jakub Jelinek  <jakub@redhat.com>
1476
1477         PR debug/85302
1478         * dwarf2out.c (skip_loc_list_entry): Don't call size_of_locs if
1479         SIZEP is NULL.
1480         (output_loc_list): Pass address of a dummy size variable even in the
1481         locview handling loop.
1482         (index_location_lists): Add comment on why skip_loc_list_entry can't
1483         call size_of_locs.
1484
1485 2018-04-11  Thomas Preud'homme  <thomas.preudhomme@arm.com>
1486
1487         PR target/85261
1488         * config/arm/arm-builtins.c (arm_expand_builtin): Force input operand
1489         into register.
1490
1491 2018-04-10  Aaron Sawdey  <acsawdey@linux.ibm.com>
1492
1493         PR target/85321
1494         * doc/invoke.texi (RS/6000 and PowerPC Options): Document options
1495         -mblock-compare-inline-limit, -mblock-compare-inline-loop-limit,
1496         and -mstring-compare-inline-limit.
1497
1498 2018-04-10  Segher Boessenkool  <segher@kernel.crashing.org>
1499
1500         PR target/85287
1501         * gcc/config/rs6000/rs6000.md (allocate_stack): Put the residual size
1502         for stack clash protection in a register whenever we need it to be in
1503         a register.
1504
1505 2018-04-10  Segher Boessenkool  <segher@kernel.crashing.org>
1506
1507         * common/config/rs6000/rs6000-common.c (rs6000_option_init_struct):
1508         Enable -fasynchronous-unwind-tables by default if OBJECT_FORMAT_ELF.
1509
1510 2018-04-10  Segher Boessenkool  <segher@kernel.crashing.org>
1511
1512         PR target/85321
1513         * config/rs6000/rs6000.opt (mtraceback=): Show the allowed values in
1514         the help text.
1515         (mlong-double-): Ditto.
1516         * config/rs6000/sysv4.opt (msdata=): Ditto.
1517         (mtls-size=): Ditto.
1518
1519 2018-04-10  Kelvin Nilsen  <kelvin@gcc.gnu.org>
1520
1521         * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Remove
1522         erroneous entries for
1523         "vector int vec_ldl (int, long int *)", and
1524         "vector unsigned int vec_ldl (int, unsigned long int *)".
1525         Add comments and entries for
1526         "vector bool char vec_ldl (int, bool char *)",
1527         "vector bool short vec_ldl (int, bool short *)",
1528         "vector bool int vec_ldl (int, bool int *)",
1529         "vector bool long long vec_ldl (int, bool long long *)",
1530         "vector pixel vec_ldl (int, pixel *)",
1531         "vector long long vec_ldl (int, long long *)",
1532         "vector unsigned long long vec_ldl (int, unsigned long long *)".
1533         * config/rs6000/rs6000.c (rs6000_init_builtins): Initialize new
1534         type tree bool_long_long_type_node and correct definition of
1535         bool_V2DI_type_node to make reference to this new type tree.
1536         (rs6000_mangle_type): Replace erroneous reference to
1537         bool_long_type_node with bool_long_long_type_node.
1538         * config/rs6000/rs6000.h (enum rs6000_builtin_type_index): Add
1539         comments to emphasize sign distinctions for char and int types and
1540         replace RS6000_BTI_bool_long constant with
1541         RS6000_BTI_bool_long_long constant.  Also add comment to restrict
1542         use of RS6000_BTI_pixel.
1543         (bool_long_type_node): Remove this macro definition.
1544         (bool_long_long_type_node): New macro definition
1545
1546 2018-04-10  Jakub Jelinek  <jakub@redhat.com>
1547
1548         PR rtl-optimization/85300
1549         * combine.c (subst): Handle subst of CONST_SCALAR_INT_P new_rtx also
1550         into FLOAT and UNSIGNED_FLOAT like ZERO_EXTEND, return a CLOBBER if
1551         simplify_unary_operation fails.
1552
1553 2018-04-10  Martin Liska  <mliska@suse.cz>
1554
1555         * gdbhooks.py: Add pretty-printers for varpool_node, symtab_node,
1556         cgraph_edge and ipa_ref.
1557
1558 2018-04-10  Jakub Jelinek  <jakub@redhat.com>
1559
1560         PR target/85177
1561         PR target/85255
1562         * config/i386/sse.md
1563         (<extract_type>_vinsert<shuffletype><extract_suf>_mask): Fix
1564         computation of the VEC_MERGE selector from mask.
1565         (<extract_type>_vinsert<shuffletype><extract_suf>_1<mask_name>):
1566         Fix decoding of the VEC_MERGE selector into mask.
1567
1568 2018-04-10  Richard Sandiford  <richard.sandiford@linaro.org>
1569
1570         PR tree-optimization/85286
1571         * tree-vect-data-refs.c (vect_get_smallest_scalar_type):
1572
1573 2018-04-10  Richard Sandiford  <richard.sandiford@linaro.org>
1574
1575         * final.c (final_1): Set insn_last_address as well as
1576         insn_current_address.
1577
1578 2018-04-10  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1579
1580         PR target/85173
1581         * explow.c (emit_stack_probe): Call validize_mem on memory location
1582         before passing it to gen_probe_stack.  Create address operand and
1583         legitimize it for the probe_stack_address case.
1584
1585 2018-04-09  Jan Hubicka  <jh@suse.cz>
1586
1587         PR lto/85078
1588         * ipa-devirt.c (rebuild_type_inheritance-hash): New.
1589         * ipa-utils.h (rebuild_type_inheritance-hash): Declare.
1590         * tree.c (free_lang_data_in_type): Fix handling of binfos;
1591         walk basetypes.
1592         (free_lang_data): Rebuild type inheritance graph.
1593
1594 2018-04-09  Martin Sebor  <msebor@redhat.com>
1595
1596         * invoke.texi (-finline-small-functions): Mention other optimization
1597         options.
1598         (-findirect-inlining, -fpartial-inlining): Same.
1599         (-finline-functions-called-once): Same.
1600         (-freorder-blocks-and-partition): Same.
1601
1602 2018-04-09  Jan Hubicka  <jh@suse.cz>
1603
1604         PR rtl/84058
1605         * cfgcleanup.c (try_forward_edges): Do not give up on crossing
1606         jumps; choose last target that matches the criteria (i.e.
1607         no partition changes for non-crossing jumps).
1608         * cfgrtl.c (cfg_layout_redirect_edge_and_branch): Add basic
1609         support for redirecting crossing jumps to non-crossing.
1610
1611 2018-04-09  Alexey Brodkin  <abrodkin@synopsys.com>
1612
1613         * config/arc/arc.c (arc_expand_prologue): Set stack usage info
1614         also for naked functions.
1615
1616 2018-04-09  Claudiu Zissulescu  <claziss@synopsys.com>
1617
1618         * config/arc/arc.md (add_shift): New pattern.
1619         (add_shift2): Likewise.
1620         (sub_shift): Likewise.
1621         (sub_shift_cmp0_noout): Likewise.
1622         (compare_si_ashiftsi): Likewise.
1623         (xbfu_cmp0_noout): New combine pattern.
1624         (xbfu_cmp0"): Likewise.
1625         (movsi_set_cc_insn): Place the predicable variant first.
1626         (commutative_binary_cmp0_noout): Remove clobber.
1627         (commutative_binary_cmp0): New pattern.
1628         (noncommutative_binary_cmp0): Likewise.
1629         (noncommutative_binary_cmp0_noout): Likewise.
1630         (noncommutative_binary_comparison_result_used): Removed.
1631         (rsub_cmp0): New pattern.
1632         (rsub_cmp0_noout): Likewise.
1633         (extzvsi): Changed, keep only meaningful variants.
1634         (SQH, SEZ): New iterators.
1635         (SQH_postfix): New mode attribute.
1636         (SEZ_prefix): New code attribute.
1637         (<SEZ_prefix>xt<SQH_postfix>_cmp0_noout): New instruction pattern.
1638         (<SEZ_prefix>xt<SQH_postfix>_cmp0): Likewise.
1639         * config/arc/predicates.md (cc_set_register): Use CC_REG instead
1640         of numerical value.
1641         (noncommutative_operator): Check the availability of barrel
1642         shifter option.
1643
1644 2018-04-09  Richard Biener  <rguenther@suse.de>
1645
1646         PR tree-optimization/85284
1647         * tree-ssa-loop-niter.c (number_of_iterations_exit_assumptions):
1648         Only use the niter constraining form of simple_iv when the exit
1649         is always executed.
1650
1651 2018-04-09  Tom de Vries  <tom@codesourcery.com>
1652
1653         PR target/84041
1654         * config/nvptx/nvptx.md (define_c_enum "unspecv"): Add UNSPECV_MEMBAR.
1655         (define_expand "*memory_barrier"): New define_expand.
1656         (define_insn "memory_barrier"): New insn.
1657
1658 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
1659
1660         PR rtl-optimization/80463
1661         PR rtl-optimization/83972
1662         PR rtl-optimization/83480
1663
1664         * sel-sched-ir.c (has_dependence_note_mem_dep): Take into account the
1665         correct producer for the insn.
1666         (tidy_control_flow): Fixup seqnos in case of debug insns.
1667
1668 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
1669
1670         PR rtl-optimization/83913
1671
1672         * sel-sched-ir.c (merge_expr_data): Choose the middle between two
1673         different sched-times when merging exprs.
1674
1675 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
1676
1677         PR rtl-optimization/83962
1678
1679         * sel-sched-ir.c (tidy_control_flow): Correct the order in which we call
1680         tidy_fallthru_edge and tidy_control_flow.
1681
1682 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
1683
1684         PR rtl-optimization/83530
1685
1686         * sel-sched.c (force_next_insn): New global variable.
1687         (remove_insn_for_debug): When force_next_insn is true, also leave only
1688         next insn in the ready list.
1689         (sel_sched_region): When the region wasn't scheduled, make another pass
1690         over it with force_next_insn set to 1.
1691
1692 2018-04-08  Monk Chiang  <sh.chiang04@gmail.com>
1693
1694         * config.gcc (nds32le-*-*, nds32be-*-*): Add nds32/nds32_intrinsic.h
1695         into tm_file.
1696         * config/nds32/constants.md (unspec_volatile_element): Add enum values
1697         for interrupt control.
1698         * config/nds32/nds32-intrinsic.c: Implementation of intrinsic
1699         functions for interrupt control.
1700         * config/nds32/nds32-intrinsic.md: Likewise.
1701         * config/nds32/nds32_intrinsic.h: Likewise.
1702         * config/nds32/nds32.h (nds32_builtins): Likewise.
1703
1704 2018-04-08  Chung-Ju Wu  <jasonwucj@gmail.com>
1705
1706         * config/nds32/nds32.c (nds32_init_machine_status,
1707         nds32_legitimate_index_p, nds32_legitimate_address_p): Consider
1708         strict_aligned_p field.
1709         (nds32_expand_to_rtl_hook): New function.
1710         (TARGET_EXPAND_TO_RTL_HOOK): Define.
1711         * config/nds32/nds32.h (machine_function): Add strict_aligned_p field.
1712
1713 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
1714             Chung-Ju Wu  <jasonwucj@gmail.com>
1715
1716         * config.gcc (nds32*-*-*): Check that n7 is valid to --with-cpu.
1717         * config/nds32/nds32-n7.md: New file.
1718         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_N7.
1719         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n7
1720         pipeline.
1721         * config/nds32/nds32-protos.h: More declarations for n7 pipeline.
1722         * config/nds32/nds32.md (pipeline_model): Add n7.
1723         * config/nds32/nds32.opt (mcpu): Support n7 pipeline cpus.
1724         * config/nds32/pipelines.md: Include n7 settings.
1725
1726 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
1727             Chung-Ju Wu  <jasonwucj@gmail.com>
1728
1729         * config.gcc (nds32*-*-*): Check that e8 is valid to --with-cpu.
1730         * config/nds32/nds32-e8.md: New file.
1731         * config/nds32/nds32-opts.h (nds32-cpu_type): Add CPU_E8.
1732         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for e8
1733         pipeline.
1734         * config/nds32/nds32-protos.h: More declarations for e8 pipeline.
1735         * config/nds32/nds32.md (pipeline_model): Add e8.
1736         * config/nds32/nds32.opt (mcpu): Support e8 pipeline cpus.
1737         * config/nds32/pipelines.md: Include e8 settings.
1738
1739 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
1740             Chung-Ju Wu  <jasonwucj@gmail.com>
1741
1742         * config.gcc (nds32*-*-*): Check that n6/n8/s8 are valid to --with-cpu.
1743         * config/nds32/nds32-n8.md: New file.
1744         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_N6 and CPU_N8.
1745         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n8
1746         pipeline.
1747         * config/nds32/nds32-protos.h: More declarations for n8 pipeline.
1748         * config/nds32/nds32-utils.c: More implementations for n8 pipeline.
1749         * config/nds32/nds32.md (pipeline_model): Add n8.
1750         * config/nds32/nds32.opt (mcpu): Support n8 pipeline cpus.
1751         * config/nds32/pipelines.md: Include n8 settings.
1752
1753 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
1754             Chung-Ju Wu  <jasonwucj@gmail.com>
1755
1756         * config.gcc (nds32*): Add nds32-utils.o into extra_objs.
1757         * config/nds32/nds32-n9-2r1w.md: New file.
1758         * config/nds32/nds32-n9-3r2w.md: New file.
1759         * config/nds32/nds32-opts.h (nds32_cpu_type, nds32_mul_type,
1760         nds32_register_ports): New or modify for cpu n9.
1761         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n9
1762         pipeline.
1763         * config/nds32/nds32-protos.h: More declarations for n9 pipeline.
1764         * config/nds32/nds32-utils.c: New file.
1765         * config/nds32/nds32.h (TARGET_PIPELINE_N9, TARGET_PIPELINE_SIMPLE,
1766         TARGET_MUL_SLOW): Define.
1767         * config/nds32/nds32.md (pipeline_model): New attribute.
1768         * config/nds32/nds32.opt (mcpu, mconfig-mul, mconfig-register-ports):
1769         New options that support cpu n9.
1770         * config/nds32/pipelines.md: Include n9 settings.
1771         * config/nds32/t-nds32 (nds32-utils.o): Add dependency.
1772
1773 2018-04-08  Chung-Ju Wu  <jasonwucj@gmail.com>
1774
1775         * config/nds32/nds32-md-auxiliary.c (output_cond_branch): Output align
1776         information if necessary.
1777         (output_cond_branch_compare_zero): Likewise.
1778         * config/nds32/nds32.c (nds32_adjust_insn_length): Consider align case.
1779         (nds32_target_alignment): Refine for alignment.
1780         * config/nds32/nds32.h (NDS32_ALIGN_P): Define.
1781         (FUNCTION_BOUNDARY): Modify.
1782         * config/nds32/nds32.md (call_internal, call_value_internal): Consider
1783         align case.
1784         * config/nds32/nds32.opt (malways-align, malign-functions): New.
1785
1786 2018-04-08  Monk Chiang  <sh.chiang04@gmail.com>
1787
1788         * config/nds32/constants.md (unspec_volatile_element): Add values for
1789         TLB operation and data prefetch.
1790         * config/nds32/nds32-intrinsic.c: Implementation of intrinsic
1791         functions for TLB operation and data prefetch.
1792         * config/nds32/nds32-intrinsic.md: Likewise.
1793         * config/nds32/nds32_intrinsic.h: Likewise.
1794         * config/nds32/nds32.c (nds32_dpref_names): Likewise.
1795         (nds32_print_operand): Likewise.
1796         * config/nds32/nds32.h (nds32_builtins): Likewise.
1797
1798 2018-04-07  Thomas Koenig  <tkoenig@gcc.gnu.org>
1799         Andrew Pinski <pinsika@gcc.gnu.org>
1800
1801         PR middle-end/82976
1802         * match.pd: Use constant_boolean_node of correct type instead of
1803         boolean_true_node or boolean_false_node for simplifying
1804         pointer comparisons to zero.
1805
1806 2018-04-07  Jakub Jelinek  <jakub@redhat.com>
1807
1808         PR tree-optimization/80021
1809         * tree.c (verify_type_variant): Make error call in verify_variant_match
1810         translatable and remove final full stop.
1811
1812 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
1813
1814         * config/nds32/constants.md (unspec_volatile_element): Add
1815         UNSPEC_VOLATILE_EH_RETURN.
1816         * config/nds32/nds32-md-auxiliary.c (nds32_output_stack_push,
1817         nds32_output_stack_pop): Support dwarf exception handling process.
1818         * config/nds32/nds32-protos.h (nds32_dynamic_chain_address): Declare.
1819         * config/nds32/nds32.c (nds32_init_machine_status): Support dwarf
1820         exception handling process.
1821         (nds32_compute_stack_frame): Likewise.
1822         (nds32_return_addr_rtx): Likewise.
1823         (nds32_initial_elimination_offset): Likewise.
1824         (nds32_expand_prologue): Likewise.
1825         (nds32_expand_epilogue): Likewise.
1826         (nds32_dynamic_chain_address): New function.
1827         * config/nds32/nds32.h (machine_function): Add fields for dwarf
1828         exception handling.
1829         (DYNAMIC_CHAIN_ADDRESS): Define.
1830         (EH_RETURN_DATA_REGNO): Define.
1831         (EH_RETURN_STACKADJ_RTX): Define.
1832         * config/nds32/nds32.md (eh_return, nds32_eh_return): Implement
1833         patterns for dwarf exception handling.
1834
1835 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
1836
1837         * config/nds32/nds32.h: Clean up obsolete macros.
1838
1839 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
1840
1841         * config/nds32/constants.md (unspec_element, unspec_volatile_element):
1842         Add enum values for particular instructions.
1843         * config/nds32/nds32-intrinsic.c: Implementation of expanding
1844         particular intrinsic functions.
1845         * config/nds32/nds32-intrinsic.md: Likewise.
1846         * config/nds32/nds32_intrinsic.h: Likewise.
1847         * config/nds32/nds32.h (nds32_builtins): Likewise.
1848         * config/nds32/nds32.md (type): Add pbsad and pbsada.
1849         (btst, ave): New patterns for particular instructions.
1850
1851 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
1852
1853         * config/nds32/constants.md (unspec_element, unspec_volatile_element):
1854         Add enum values for atomic load/store and memory sync.
1855         * config/nds32/nds32-intrinsic.c: Implementation for atomic load/store
1856         and memory sync.
1857         * config/nds32/nds32-intrinsic.md: Likewise.
1858         * config/nds32/nds32_intrinsic.h: Likewise.
1859         * config/nds32/nds32.h (nds32_builtins): Likewise.
1860
1861 2018-04-07  Jakub Jelinek  <jakub@redhat.com>
1862
1863         PR tree-optimization/85257
1864         * fold-const.c (native_encode_vector): If not all elts could fit
1865         and off is -1, return 0 rather than offset.
1866         * tree-ssa-sccvn.c (vn_reference_lookup_3): Pass
1867         (offseti - offset2) / BITS_PER_UNIT as 4th argument to
1868         native_encode_expr.  Verify len * BITS_PER_UNIT >= maxsizei.  Don't
1869         adjust buffer in native_interpret_expr call.
1870
1871 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
1872
1873         * config/nds32/constants.md (unspec_volatile_element): Add cache
1874         control enum values.
1875         * config/nds32/nds32-intrinsic.c: Add cache control expand functions.
1876         * config/nds32/nds32-intrinsic.md: Add cache control patterns.
1877         * config/nds32/nds32.c (nds32_cctl_names): New.
1878         (nds32_print_operand): Handle cache control register names.
1879         * config/nds32/nds32.h (nds32_builtins): New enum values.
1880         * config/nds32/nds32_intrinsic.h: Add cache control enum types and
1881         macros.
1882         * config/nds32/nds32.md (type): Add mmu.
1883         * config/nds32/pipelines.md (simple_insn): Add mmu.
1884
1885 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
1886
1887         * config/nds32/nds32.md (type): Remove call.
1888         * config/nds32/pipelines.md (simple_insn): Likewise.
1889
1890 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
1891
1892         * config/nds32/constants.md (unspec_volatile_element): Add
1893         UNSPEC_VOLATILE_FMFCSR, UNSPEC_VOLATILE_FMTCSR and
1894         UNSPEC_VOLATILE_FMFCFG.
1895         * config/nds32/nds32-intrinsic.c (bdesc_noarg): New builtin
1896         description for fmfcfg and fmfcsr.
1897         (bdesc_1arg): Add fmtcsr.
1898         (bdesc_2arg): Add fcpynss, fcpyss, fcpynsd and fcpysd.
1899         (nds32_expand_builtin_impl): Deal with FPU intrinsic functions.
1900         * config/nds32/nds32-intrinsic.md (unspec_fcpynsd, unspec_fcpysd,
1901         unspec_fcpynss, unspec_fcpysd, unspec_fcpyss, unspec_fmfcsr,
1902         unspec_fmfcfg): New patterns.
1903         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_FMFCFG,
1904         NDS32_BUILTIN_FMFCSR, NDS32_BUILTIN_FMTCSR, NDS32_BUILTIN_FCPYNSS,
1905         NDS32_BUILTIN_FCPYSS,NDS32_BUILTIN_FCPYNSD and NDS32_BUILTIN_FCPYSD.
1906         * config/nds32/nds32_intrinsic.h (__nds32__fcpynsd, __nds32__fcpynss,
1907         __nds32__fcpysd, __nds32__fcpyss, __nds32__fmfcsr, __nds32__fmtcsr,
1908         __nds32__fmfcfg): Define.
1909
1910 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
1911
1912         * config/nds32/nds32.c (nds32_intrinsic_register_names): Add more
1913         intrinsic register names.
1914         * config/nds32/nds32_intrinsic.h (nds32_intrinsic_registers): Add more
1915         intrinsic register enum values and macros.
1916
1917 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
1918
1919         * config/nds32/nds32.c (nds32_legitimate_index_p): Modify condition
1920         for load/store addressing form.
1921         (nds32_print_operand_address): Likewise.
1922
1923 2018-04-06  Eric Botcazou  <ebotcazou@adacore.com>
1924
1925         PR target/85196
1926         * config/sparc/sparc.c (sparc_expand_move): Deal with symbolic operands
1927         based on LABEL_REF.  Remove useless assertion.
1928         (pic_address_needs_scratch): Fix formatting.
1929         (sparc_legitimize_pic_address): Minor tweaks.
1930         (sparc_delegitimize_address): Adjust assertion accordingly.
1931         * config/sparc/sparc.md (movsi_pic_label_ref): Change label_ref_operand
1932         into symbolic_operand.
1933         (movsi_high_pic_label_ref): Likewise.
1934         (movsi_lo_sum_pic_label_ref): Likewise.
1935         (movdi_pic_label_ref): Likewise.
1936         (movdi_high_pic_label_ref): Likewise.
1937         (movdi_lo_sum_pic_label_ref): Likewise.
1938
1939 2018-04-06  Amaan Cheval  <amaan.cheval@gmail.com>
1940
1941         * config.gcc (x86_64-*-rtems*): Add rtems.h to tm_file for
1942         custom LIB_SPEC setup.
1943
1944 2018-04-06  Ruslan Bukin  <br@bsdpad.com>
1945             Kito Cheng  <kito.cheng@gmail.com>
1946
1947         * config.gcc (riscv*-*-freebsd*): Add RISC-V FreeBSD support.
1948         * config/riscv/freebsd.h: New.
1949
1950 2018-04-06  Chung-Ju Wu  <jasonwucj@gmail.com>
1951
1952         * config/nds32/nds32.c (nds32_adjust_insn_length): Refine.
1953         * config/nds32/nds32.h (ADJUST_INSN_LENGTH): Change the location in
1954         file.
1955
1956 2018-04-06  Chung-Ju Wu  <jasonwucj@gmail.com>
1957             Kito Cheng  <kito.cheng@gmail.com>
1958
1959         * config/nds32/nds32-md-auxiliary.c (nds32_output_return,
1960         nds32_output_call, nds32_symbol_binds_local_p): New functions.
1961         * config/nds32/nds32-protos.h (nds32_output_call,
1962         nds32_output_return): Declare.
1963         * config/nds32/nds32.md: Refine all the call and return patterns.
1964
1965 2018-04-06  Jakub Jelinek  <jakub@redhat.com>
1966
1967         PR debug/85252
1968         * dwarf2out.c (rtl_for_decl_init): For STRING_CST initializer only
1969         build CONST_STRING if TYPE_MAX_VALUE is non-NULL and is INTEGER_CST.
1970
1971         PR rtl-optimization/84872
1972         * cfgloopmanip.c (create_preheader): Use make_forwarder_block even if
1973         nentry == 1 when CP_FALLTHRU_PREHEADERS and single_entry is
1974         EDGE_CROSSING edge.
1975
1976 2018-04-06  Tamar Christina  <tamar.christina@arm.com>
1977
1978         * expr.c (copy_blkmode_to_reg): Revert 254862.
1979         * doc/sourcebuild.texi (word_mode_no_slow_unalign): Likewise.
1980
1981 2018-04-06  Richard Biener  <rguenther@suse.de>
1982
1983         PR middle-end/85244
1984         * tree-dfa.c (get_ref_base_and_extent): Reset seen_variable_array_ref
1985         after seeing a component reference with an adjacent field.  Treat
1986         refs to arrays at struct end of external decls similar to
1987         refs to unconstrained commons.
1988
1989 2018-04-06  Jakub Jelinek  <jakub@redhat.com>
1990
1991         PR sanitizer/85213
1992         * fold-const.c (twoval_comparison_p): Remove SAVE_P argument and don't
1993         look through SAVE_EXPRs with non-side-effects argument.  Adjust
1994         recursive calls.
1995         (fold_comparison): Adjust twoval_comparison_p caller, don't handle
1996         save_p here.
1997
1998 2018-04-06  Richard Biener  <rguenther@suse.de>
1999
2000         PR middle-end/85180
2001         * alias.c (find_base_term): New wrapper around find_base_term
2002         unwinding CSELIB_VAL_PTR changes.
2003         (find_base_term): Do not restore CSELIB_VAL_PTR during the
2004         recursion.
2005
2006 2018-04-06  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
2007
2008         * config/s390/s390.c (s390_z10_optimize_cmp): Expand dedicated NOP
2009         instructions.
2010         * config/s390/s390.md (UNSPECV_NOP_LR_0, UNSPECV_NOP_LR_1): New
2011         constant definitions.
2012         ("nop"): lr 0,0 -> nopr r0
2013         ("nop_lr0", "nop_lr1"): New insn definitions.
2014
2015 2018-04-06  Chung-Ju Wu  <jasonwucj@gmail.com>
2016
2017         * config/nds32/nds32.md (*stack_push, *stack_pop): Use
2018         NDS32_V3PUSH_AVAILABLE_P macro.
2019
2020 2018-04-06  Monk Chiang  <sh.chiang04@gmail.com>
2021             Chung-Ju Wu  <jasonwucj@gmail.com>
2022
2023         * config.gcc (nds32*-*-*): Add v2j v3f v3s checking.
2024         (nds32*-*-*): Add float and fpu_config into supported_defaults.
2025         * common/config/nds32/nds32-common.c (TARGET_DEFAULT_TARGET_FLAGS):
2026         Include TARGET_DEFAULT_FPU_ISA and TARGET_DEFAULT_FPU_FMA.
2027         * config/nds32/constants.md (unspec_element): Add UNSPEC_COPYSIGN,
2028         UNSPEC_FCPYNSD, UNSPEC_FCPYNSS, UNSPEC_FCPYSD and UNSPEC_FCPYSS.
2029         * config/nds32/constraints.md: New constraints and checking for hard
2030         float configuration.
2031         * config/nds32/iterators.md: New mode iterator and attribute for hard
2032         float configuration.
2033         * config/nds32/nds32-doubleword.md: Use hard float alternatives and
2034         patterns.
2035         * config/nds32/nds32-fpu.md: New file.
2036         * config/nds32/nds32-md-auxiliary.c: New functions and checkings to
2037         deal with hard float code generation.
2038         * config/nds32/nds32-opts.h (nds32_arch_type): Add ARCH_V3F and
2039         ARCH_V3S.
2040         (abi_type, float_reg_number): New enum type.
2041         * config/nds32/nds32-predicates.c: New predicates for hard float.
2042         * config/nds32/nds32-protos.h: Declare functions for hard float.
2043         * config/nds32/nds32.c: Implementation for hard float configuration.
2044         * config/nds32/nds32.h: Definitions for hard float configuration.
2045         * config/nds32/nds32.md: Include hard float machine description and
2046         modify patterns for hard float configuration.
2047         * config/nds32/nds32.opt: New options for hard float configuration.
2048         * config/nds32/predicates.md: New predicates for hard float
2049         configuration.
2050
2051 2018-04-06  Kuan-Lin Chen  <kuanlinchentw@gmail.com>
2052
2053         * common/config/nds32/nds32-common.c
2054         (nds32_option_optimization_table): Enable -mreleax-hint by default.
2055
2056 2018-04-05  Jakub Jelinek  <jakub@redhat.com>
2057
2058         PR middle-end/85195
2059         * match.pd (BIT_FIELD_REF CONSTRUCTOR@0 @1 @2): Use view_convert around
2060         CONSTRUCTOR_ELT (ctor, ...)->value.
2061
2062 2018-04-05  Uros Bizjak  <ubizjak@gmail.com>
2063
2064         PR target/85193
2065         * config/i386/i386.md (define_attr "memory"): Handle rotate1 type.
2066
2067 2018-04-05  Tom de Vries  <tom@codesourcery.com>
2068
2069         PR target/85204
2070         * config/nvptx/nvptx.c (nvptx_single): Fix neutering of bb with only
2071         cond jump.
2072
2073 2018-04-05  Shiva Chen  <shiva0217@gmail.com>
2074             Kito Cheng  <kito.cheng@gmail.com>
2075
2076         * config/nds32/constraints.md (U33): Fine-tune checking condition.
2077         * config/nds32/nds32-md-auxiliary.c (nds32_mem_format): Ditto.
2078         * config/nds32/nds32.h (nds32_16bit_address_type): Add
2079         ADDRESS_POST_MODIFY_LO_REG_IMM3U.
2080
2081 2018-04-05  Shiva Chen  <shiva0217@gmail.com>
2082             Kito Cheng  <kito.cheng@gmail.com>
2083
2084         * config/nds32/constraints.md (Ufe): New memory constraint.
2085         * config/nds32/nds32-md-auxiliary.c (nds32_mem_format,
2086         nds32_output_16bit_load): Consider r8 register for lwi45.fe format.
2087         * config/nds32/nds32.c (nds32_print_operand): Output lwi45.fe
2088         operands.
2089         * config/nds32/nds32.h (nds32_16bit_address_type): Add ADDRESS_R8_IMM7U.
2090         * config/nds32/nds32.md (*mov<mode>): Adjust pattern.
2091
2092 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
2093
2094         * config/nds32/nds32.md: Use optimize_size in the condition for
2095         alu-shift instructions.
2096
2097 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
2098
2099         * config/nds32/nds32.md (divsi4, udivsi4): New patterns.
2100
2101 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
2102
2103         * config/nds32/nds32.md (negsi2): Refine pattern.
2104
2105 2018-04-05  Kito Cheng  <kito.cheng@gmail.com>
2106             Chung-Ju Wu  <jasonwucj@gmail.com>
2107
2108         * config/nds32/iterators.md (shift_rotate): New code iterator.
2109         (shift): New code attribute.
2110         * config/nds32/nds32-md-auxiliary.c (nds32_expand_constant): New.
2111         * config/nds32/nds32-protos.h (nds32_expand_constant): Declare.
2112         * config/nds32/nds32.c (nds32_print_operand): Deal with more cases.
2113         * config/nds32/nds32.md (addsi3, *add_srli): Refine implementation for
2114         bit-wise operations.
2115         (andsi3, *andsi3): Ditto.
2116         (iorsi3, *iorsi3, *or_slli, *or_srli): Ditto.
2117         (xorsi3, *xorsi3, *xor_slli, *xor_srli): Ditto.
2118         (<shift>si3, *ashlsi3, *ashrsi3, *lshrsi3, *rotrsi3): Ditto.
2119         * config/nds32/predicates.md (nds32_rimm5u_operand, nds32_and_operand,
2120         nds32_ior_operand, nds32_xor_operand): New predicates.
2121
2122 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
2123
2124         * config/nds32/nds32.md (add<mode>3, sub<mode>3): Rename to ...
2125         (addsi3, subsi3): ... this.
2126
2127 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
2128
2129         * config/nds32/nds32.md (*sub_srli, *and_slli): Fine-tune predicator.
2130
2131 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
2132
2133         * config/nds32/nds32.md: Adjust indention.
2134
2135 2018-04-05  Kito Cheng  <kito.cheng@gmail.com>
2136
2137         * config/nds32/nds32.md (feature): New attribute.
2138
2139 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
2140
2141         * config/nds32/nds32.md (subtype): New attribute.
2142
2143 2018-04-04  Thomas Preud'homme  <thomas.preudhomme@arm.com>
2144
2145         PR target/85203
2146         * config/arm/arm-builtins.c (arm_expand_builtin): Change
2147         expansion to perform a bitwise AND of the argument followed by a
2148         boolean negation of the result.
2149
2150 2018-04-04  Peter Bergner  <bergner@vnet.ibm.com>
2151
2152         PR rtl-optimization/84878
2153         * ddg.c (add_cross_iteration_register_deps): Use DF_REF_BB to determine
2154         the basic block.  Assert the use reference is not artificial and that
2155         it has an associated insn.
2156
2157 2018-04-04  Michael Matz  <matz@suse.de>
2158
2159         * builtins.c (compute_objsize): Pass correct operand
2160         to array_at_struct_end_p.
2161
2162 2018-04-04  Richard Biener  <rguenther@suse.de>
2163
2164         PR lto/85176
2165         * dwarf2out.c (dwarf2out_register_external_die): Peel namespaces
2166         from contexts for DINFO_LEVEL_TERSE and below.
2167
2168 2018-04-04  Kito Cheng  <kito.cheng@gmail.com>
2169
2170         * config/nds32/nds32-doubleword.md (move_<mode>): Require
2171         resiter_operand condition.
2172         * config/nds32/nds32.md (*move<mode>): Ditto.
2173
2174 2018-04-04  Kito Cheng  <kito.cheng@gmail.com>
2175             Monk Chiang  <sh.chiang04@gmail.com>
2176
2177         * config/nds32/nds32.md (movmisalign<mode>): New pattern.
2178
2179 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
2180
2181         * config/nds32/nds32.md (movqi, movhi): Merge into mov<mode>.
2182
2183 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
2184             Kito Cheng  <kito.cheng@gmail.com>
2185
2186         * config/nds32/nds32-md-auxiliary.c (nds32_inverse_cond_code,
2187         nds32_cond_code_str, output_cond_branch,
2188         output_cond_branch_compare_zero, nds32_expand_cbranch,
2189         nds32_expand_cstore, nds32_expand_movcc,
2190         nds32_output_cbranchsi4_equality_zero,
2191         nds32_output_cbranchsi4_equality_reg,
2192         nds32_output_cbranchsi4_equality_reg_or_const_int,
2193         nds32_output_cbranchsi4_greater_less_zero: New functions.
2194         * config/nds32/nds32-protos.h (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): Declare.
2200         * config/nds32/predicates.md (nds32_movecc_comparison_operator,
2201         nds32_rimm11s_operand): New predicates.
2202         * config/nds32/nds32.h (nds32_expand_result_type): New enum type.
2203         * config/nds32/nds32.md: Rewrite all the branch and conditional move
2204         patterns.
2205
2206 2018-04-04  Kito Cheng  <kito.cheng@gmail.com>
2207
2208         * config/nds32/nds32-doubleword.md: Refine all the instruction type.
2209         * config/nds32/nds32.md: Ditto.
2210         * config/nds32/pipelines.md: Ditto.
2211
2212 2018-04-04  Richard Biener  <rguenther@suse.de>
2213
2214         PR tree-optimization/85168
2215         * tree-ssa-sccvn.c (vn_reference_maybe_forwprop_address): Avoid
2216         propagating abnormals.
2217
2218 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
2219
2220         * config/nds32/nds32.md (enabled): Use yes/no for this attribute.
2221
2222 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
2223             Kito Cheng  <kito.cheng@gmail.com>
2224
2225         * config/nds32/nds32-md-auxiliary.c (nds32_long_call_p): New function.
2226         * config/nds32/nds32-protos.h (nds32_long_call_p): Declare.
2227         * config/nds32/nds32.c (nds32_function_ok_for_sibcall): New function.
2228         (TARGET_FUNCTION_OK_FOR_SIBCALL): Define.
2229         * config/nds32/nds32.md (sibcall_internal): New.
2230         (sibcall_register): Remove.
2231         (sibcall_immediate): Remove.
2232         (sibcall_value_internal): New.
2233         (sibcall_value_register): Remove.
2234         (sibcall_value_immediate): Remove.
2235         * config/nds32/predicates.md (nds32_general_register_operand): New.
2236         (nds32_call_address_operand): New.
2237
2238 2018-04-03  Jakub Jelinek  <jakub@redhat.com>
2239
2240         PR rtl-optimization/85167
2241         * shrink-wrap.c (move_insn_for_shrink_wrap): Don't set bb_uses and
2242         bb_defs if *split_p, instead preinitialize it to NULL.
2243
2244         PR tree-optimization/85156
2245         * builtins.c (fold_builtin_expect): Use save_expr on arg1 to avoid
2246         evaluating the argument multiple times.
2247
2248 2018-04-03  Bill Schmidt  <wschmidt@linux.ibm.com>
2249
2250         * config/rs6000/emmintrin.h (_mm_cvtpd_epi32): Use __vector rather
2251         than vector.
2252         (_mm_cvtpd_ps): Likewise.
2253         (_mm_cvttpd_epi32): Likewise.
2254         * config/rs6000/mmintrin.h (_mm_unpacklo_pi8): Likewise.
2255         * config/rs6000/xmmintrin.h: For strict-ANSI C++ or C11, undefine
2256         vector, pixel, and bool following altivec.h include.
2257
2258 2018-04-03  Martin Sebor  <msebor@redhat.com>
2259
2260         * doc/extend.texi (Common Function Attributes): Clarify.
2261         (const attribute): Likewise.
2262         (pure attribute): Likewise.
2263
2264 2018-04-03  Jakub Jelinek  <jakub@redhat.com>
2265
2266         PR target/85169
2267         * config/i386/i386.c (ix86_expand_vector_set): Use
2268         HOST_WIDE_INT_1U << elt instead of 1 << elt.  Formatting fix.
2269
2270 2018-04-03  Uros Bizjak  <ubizjak@gmail.com>
2271
2272         * config/i386/i386.c (emit_i387_cw_initialization): Always use logic
2273         instructions when changing rounding bits to preserve precision bits
2274         in the x87 control word.
2275
2276 2018-04-03  Martin Liska  <mliska@suse.cz>
2277
2278         PR tree-optimization/82491
2279         * rtl.h (strip_offset_and_add): Replace += suboffset with
2280         poly_uint64 () + suboffset.
2281
2282 2018-03-29  Martin Liska  <mliska@suse.cz>
2283             Martin Jambor  <mjambor@suse.cz>
2284
2285         PR ipa/84947
2286         * ipa-cp.c (propagate_bits_across_jump_function): Bail out if
2287         param_type is not an integral or pointer type.
2288
2289 2018-04-03  Richard Biener  <rguenther@suse.de>
2290
2291         * sese.h (recompute_all_dominators): Remove.
2292
2293 2018-04-02  Martin Sebor  <msebor@redhat.com>
2294
2295         * doc/invoke.texi (-Wrestrict): Fix typos.
2296
2297 2018-04-02  Jim Wilson  <jimw@sifive.com>
2298
2299         * config/riscv/riscv.h (SHIFT_COUNT_TRUNCATED): Set to zero.
2300         * config/riscv/riscv.md (<optab>si3): Use QImode shift count.
2301         (<optab>di3, <optab>si3_extend): Likewise.
2302         (<optab>si3_mask, <optab>si3_mask_1): New.
2303         (<optab>di3_mask, <optab>di3_mask_1): New.
2304         (<optab>si3_extend_mask, <optab>si3_extend_mask_1): New.
2305         (lshrsi3_zero_extend_1): Use VOIDmode shift count.
2306         * config/riscv/sync.md (atomic_test_and_set): Emit QImode shift count.
2307
2308 2018-04-02  Gerald Pfeifer  <gerald@pfeifer.com>
2309
2310         * doc/cpp.texi (Variadic Macros): Fix line continuation in an
2311         example.
2312
2313 2018-04-02  Chung-Ju Wu  <jasonwucj@gmail.com>
2314
2315         * config/nds32/nds32.c (TARGET_CANONICALIZE_COMPARISON): Define.
2316         (nds32_canonicalize_comparison): New function.
2317
2318 2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
2319             Kito Cheng  <kito.cheng@gmail.com>
2320             Kuan-Lin Chen  <kuanlinchentw@gmail.com>
2321
2322         * config.gcc (nds32): Add nds32-relax-opt.o into extra_objs.
2323         * config/nds32/constants.md (unspec_volatile_element): Add
2324         UNSPEC_VOLATILE_RELAX_GROUP.
2325         * config/nds32/nds32-relax-opt.c: New file.
2326         * config/nds32/nds32-predicates.c
2327         (nds32_symbol_load_store_p): New function.
2328         * config/nds32/nds32-protos.h
2329         (nds32_symbol_load_store_p): Declare function.
2330         (make_pass_nds32_relax_opt): Declare new rtl pass function.
2331         * config/nds32/nds32.c
2332         (nds32_register_pass): New function to register pass.
2333         (nds32_register_passes): New function to register passes.
2334         * config/nds32/nds32.md (relax_group): New pattern.
2335         * config/nds32/nds32.opt (mrelax-hint): New option.
2336         * config/nds32/t-nds32 (nds32-relax-opt.o): New dependency.
2337
2338 2018-04-01  Kito Cheng  <kito.cheng@gmail.com>
2339
2340         * config/nds32/t-nds32: Modify files dependency.
2341
2342 2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
2343
2344         * config/nds32/nds32.h (FUNCTION_PROFILER): Output newline character.
2345         (PROFILE_HOOK): Define its implementation.
2346
2347 2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
2348
2349         * config/nds32/nds32.h (WCHAR_TYPE, WCHAR_TYPE_SIZE): Use unsigned int
2350         type and 32-bit size.
2351
2352 2018-04-01  Jakub Jelinek  <jakub@redhat.com>
2353
2354         PR middle-end/85090
2355         * config/i386/sse.md (V): Add V64QI and V32HI for TARGET_AVX512F.
2356         (V_128_256): New mode iterator.
2357         (*avx512dq_vextract<shuffletype>64x2_1 splitter): New define_split.
2358         (*avx512f_vextract<shuffletype>32x4_1 splitter): Likewise.
2359         (xop_pcmov_<mode><avxsizesuffix>): Use V_128_256 mode iterator instead
2360         of V.
2361         * config/i386/i386.c (ix86_expand_vector_set): Improve V32HImode and
2362         V64QImode expansion for !TARGET_AVX512BW && TARGET_AVX512F.
2363
2364 2018-03-31  Segher Boessenkool  <segher@kernel.crashing.org>
2365
2366         PR target/83315
2367         * config/rs6000/xmmintrin.h (_mm_set_ps, _mm_max_ps): Handle (quiet)
2368         NaN inputs correctly.
2369
2370 2018-03-30  Peter Bergner  <bergner@vnet.ibm.com>
2371
2372         PR target/80546
2373         * config/rs6000/vsx.md (??r): New mode attribute.
2374         (*vsx_mov<mode>_64bit): Use it.
2375         (*vsx_mov<mode>_32bit): Likewise.
2376
2377 2018-03-30  Martin Sebor  <msebor@redhat.com>
2378
2379         PR tree-optimization/84818
2380         * builtins.c (check_access): Use warning_n.
2381
2382 2018-03-30  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
2383
2384         PR target/83822
2385         * config/rs6000/rs6000-string.c (expand_compare_loop): Fix redundant
2386         condition.
2387         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Fix redundant
2388         condition.
2389
2390 2018-03-30  Julia Koval  <julia.koval@intel.com>
2391
2392         PR target/84413
2393         * x86-tune.def (movx, partial_reg_dependency): Enable for
2394         m_SKYLAKE_AVX512.
2395
2396 2018-03-29  Vladimir Makarov  <vmakarov@redhat.com>
2397
2398         PR inline-asm/84985
2399         * lra-constraints.c (process_alt_operands): Move setting
2400         this_alternative_matches below.
2401
2402 2018-03-29  Martin Liska  <mliska@suse.cz>
2403
2404         PR lto/84995.
2405         * doc/invoke.texi: Document how LTO works with debug info.
2406         Describe auto-load support of binutils.  Mention 'x86-64'
2407         as valid option value of -march option.
2408
2409 2018-03-29  Jakub Jelinek  <jakub@redhat.com>
2410
2411         * config/i386/sse.md (<avx512>_blendm<mode>): Use <sseintprefix>.
2412
2413         PR c/85094
2414         * fold-const.c (operand_equal_p): Handle DEBUG_BEGIN_STMT.
2415         For STATEMENT_LIST, pass down OEP_LEXICOGRAPHIC and maybe
2416         OEP_NO_HASH_CHECK for recursive call, to avoid exponential
2417         checking.
2418
2419 2018-03-28  Peter Bergner  <bergner@vnet.ibm.com>
2420
2421         PR target/84912
2422         * config/rs6000/rs6000.h (RS6000_BTM_POWERPC64): New define.
2423         (RS6000_BTM_COMMON): Add RS6000_BTM_POWERPC64.
2424         * config/rs6000/rs6000.c (rs6000_builtin_mask_calculate): Add support
2425         for RS6000_BTM_POWERPC64.
2426         (rs6000_invalid_builtin): Add handling for RS6000_BTM_POWERPC64
2427         (rs6000_builtin_mask_names): Add RS6000_BTM_POWERPC64.
2428         * config/rs6000/rs6000-builtin.def (BU_P7_POWERPC64_MISC_2): New macro
2429         definition.
2430         (DIVDE): Use it.
2431         (DIVDEU): Likewise.
2432
2433 2018-03-28 Carl Love  <cel@us.ibm.com>
2434
2435         Revert
2436         2017-09-27  Carl Love  <cel@us.ibm.com>
2437
2438         * config/rs6000/rs6000-builtin.def (BU_FP_1MISC_1): Add define macro.
2439         (FCTID, FCTIW): Add BU_FP_MISC_1 macro expansion for builtins.
2440         * config/rs6000/rs6000.md (lrintsfsi2): Add define_insn for the
2441         fctiw instruction.
2442
2443 2018-03-28  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
2444
2445         * config/rs6000/xmmintrin.h (_mm_max_pi16): Use __vector __bool
2446         instead of __vector bool.
2447         (_mm_max_pu8): Likewise.
2448         (_mm_min_pi16): Likewise.
2449
2450 2018-03-28  Peter Bergner  <bergner@vnet.ibm.com>
2451
2452         PR target/84912
2453         * config/rs6000/rs6000-builtin.def (DIVWEO): Delete macro expansion.
2454         (DIVWEUO): Likewise.
2455         (DIVDEO): Likewise.
2456         (DIVDEUO): Likewise.
2457         * config/rs6000/rs6000.c (builtin_function_type): Remove support for
2458         DIVWEUO and DIVDEUO.
2459         * config/rs6000/rs6000.md (UNSPEC_DIVEO, UNSPEC_DIVEUO): Delete unspecs.
2460         (UNSPEC_DIV_EXTEND): Remove deleted unspecs.
2461         (div_extend): Likewise.
2462         * doc/extend.texi (__builtin_divweo): Remove documentation for deleted
2463         builtin function.
2464         (__builtin_divweuo): Likewise.
2465         (__builtin_divdeo): Likewise.
2466         (__builtin_divdeuo): Likewise.
2467
2468 2018-03-28  Jakub Jelinek  <jakub@redhat.com>
2469
2470         PR target/85095
2471         * config/i386/i386.md (*add<mode>3_carry_0, *addsi3_carry_zext_0,
2472         *sub<mode>3_carry_0, *subsi3_carry_zext_0): New patterns.
2473
2474         PR tree-optimization/82004
2475         * gimple-match-head.c (optimize_pow_to_exp): New function.
2476         * match.pd (pow(C,x) -> exp(log(C)*x)): Wrap with #if GIMPLE.
2477         Don't fold to exp if optimize_pow_to_exp is false.
2478
2479 2018-03-28  Martin Liska  <mliska@suse.cz>
2480
2481         PR other/84819
2482         * calls.c (initialize_argument_information): Fix trailing space.
2483         * common.opt: Fix typo and provide better explanation for
2484         -fsanitize-coverage option.
2485         * config/i386/i386.opt: Fix typo.
2486
2487 2018-03-28  Jakub Jelinek  <jakub@redhat.com>
2488             Martin Liska  <mliska@suse.cz>
2489
2490         PR sanitizer/85081
2491         * gimplify.c (asan_poison_variable): Don't do the check for
2492         gimplify_omp_ctxp here.
2493         (gimplify_decl_expr): Do it here.
2494         (gimplify_target_expr): Likewise.
2495
2496 2018-03-28  Martin Liska  <mliska@suse.cz>
2497
2498         PR target/84988
2499         * config/i386/i386.c (ix86_function_arg_advance): Do not call
2500         chkp_type_bounds_count if MPX is not enabled.
2501
2502 2018-03-27  Chung-Ju Wu  <jasonwucj@gmail.com>
2503
2504         * config/nds32/nds32.h (BRANCH_COST): Adjust cost.
2505
2506 2018-03-27  Michael Meissner  <meissner@linux.vnet.ibm.com>
2507
2508         PR target/84914
2509         * config/rs6000/rs6000.c (create_complex_muldiv): New helper
2510         function to create the function decl for complex long double
2511         multiply and divide for -mabi=ieeelongdouble.
2512         (init_float128_ieee): Call it.
2513
2514 2018-03-27  H.J. Lu  <hongjiu.lu@intel.com>
2515
2516         PR target/85044
2517         * config/i386/i386.c (ix86_trampoline_init): Insert ENDBR for
2518         -fcf-protection=branch -mibt.
2519         * config/i386/i386.h (TRAMPOLINE_SIZE): Increased by 4 bytes.
2520
2521 2018-03-27  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
2522
2523         PR target/81863
2524         * config/arm/arm.c (arm_valid_symbolic_address): Handle arm_word_relocations
2525
2526 2018-03-27  Cesar Philippidis  <cesar@codesourcery.com>
2527
2528         PR target/85056
2529         * config/nvptx/nvptx.c (nvptx_assemble_decl_begin): Add '[]' to
2530         extern array declarations.
2531
2532 2018-03-27  Richard Biener  <rguenther@suse.de>
2533
2534         PR middle-end/84067
2535         * match.pd ((A * C) +- (B * C) -> (A+-B) * C): Guard with
2536         explicit single_use checks.
2537
2538 2018-03-27  Richard Biener  <rguenther@suse.de>
2539
2540         PR tree-optimization/85082
2541         * tree-ssa-sccvn.c (vn_reference_lookup_or_insert_for_pieces):
2542         Valueize the VUSE.
2543
2544 2018-03-27  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
2545
2546         * config.gcc (aarch64*-*-linux*): New TARGET_DEFAULT_ASYNC_UNWIND_TABLES
2547         * common/config/aarch64/aarch64-common.c (aarch64_optimization_table[]):
2548         Turn on fasynchronous-unwind-tables and funwind-tables.
2549
2550 2018-03-26  Uros Bizjak  <ubizjak@gmail.com>
2551
2552         PR target/85073
2553         * config/i386/i386.md (*bmi_blsr_<mode>_cmp): New insn pattern.
2554         (*bmi_blsr_<mode>_ccz): Ditto.
2555
2556 2018-03-26  Tom de Vries  <tom@codesourcery.com>
2557
2558         PR tree-optimization/85063
2559         * omp-general.c (offloading_function_p): New function.  Factor out
2560         of ...
2561         * omp-offload.c (pass_omp_target_link::gate): ... here.
2562         * omp-general.h (offloading_function_p): Declare.
2563         * tree-switch-conversion.c (build_one_array): Mark CSWTCH.x variable
2564         with attribute omp declare target for offloading functions.
2565
2566 2018-03-24  Richard Sandiford  <richard.sandiford@linaro.org>
2567
2568         PR tree-optimization/84005
2569         * tree-data-ref.h (get_base_for_alignment): Declare.
2570         * tree-data-ref.c (get_base_for_alignment_1): New function.
2571         (get_base_for_alignment): Likewise.
2572         * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Use
2573         get_base_for_alignment to find a suitable base object, instead
2574         of always using drb->base_address.
2575
2576 2018-03-23  Jakub Jelinek  <jakub@redhat.com>
2577
2578         PR inline-asm/85022
2579         * emit-rtl.c (init_emit_regs): Indicate that VOIDmode MEMs don't have
2580         known size by default.
2581
2582 2018-03-23  Vladimir Makarov  <vmakarov@redhat.com>
2583
2584         PR inline-asm/85030
2585         * lra-constraints.c (process_alt_operands): Don't match BLKmode
2586         and non BLKmode operands.
2587
2588 2018-03-23  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
2589
2590         PR target/85026
2591         * config/arm/arm.md (unaligned_loadhis): Remove first alternative.
2592         Clean up attributes.
2593
2594 2018-03-23  Richard Biener  <rguenther@suse.de>
2595
2596         PR debug/85020
2597         * dwarf2out.c (rtl_for_decl_location): Do not generate RTL early when
2598         we are going to emit early debug for LTO.
2599
2600 2018-03-23  Jakub Jelinek  <jakub@redhat.com>
2601
2602         PR inline-asm/85034
2603         * function.c (match_asm_constraints_1): Don't optimize if input
2604         doesn't satisfy general_operand predicate for output's mode.
2605
2606         PR inline-asm/85022
2607         * alias.c (write_dependence_p): Don't require for x_canonicalized
2608         non-VOIDmode if x has VOIDmode.
2609
2610         PR sanitizer/85029
2611         * sanopt.c (maybe_optimize_ubsan_ptr_ifn): If DECL_REGISTER (base),
2612         just don't try to optimize it rather than assert it never happens.
2613
2614 2018-03-22  Kelvin Nilsen  <kelvin@gcc.gnu.org>
2615
2616         * config/rs6000/rs6000-builtin.def: Remove various BU_ALTIVEC_X
2617         macro expansions for definition of ST_INTERNAL_<mode> and
2618         LD_INTERNAL_<mode> builtins.
2619         * config/rs6000/rs6000-protos.h (rs6000_address_for_altivec):
2620         Remove prototype.
2621         * config/rs6000/rs6000.c (altivec_expand_ld_builtin): Delete this
2622         function.
2623         (altivec_expand_st_builtin): Likewise.
2624         (altivec_expand_builtin): Remove calls to deleted functions.
2625         (rs6000_address_for_altivec): Delete this function.
2626         * config/rs6000/vector.md: Remove expands for
2627         vector_altivec_load_<mode> and vector_altivec_store_<mode>.
2628
2629 2018-03-22  Sudakshina Das  <sudi.das@arm.com>
2630
2631         PR target/84826
2632         * config/arm/arm.h (machine_function): Add static_chain_stack_bytes.
2633         * config/arm/arm.c (arm_compute_static_chain_stack_bytes): Avoid
2634         re-computing once computed.
2635         (arm_expand_prologue): Compute machine->static_chain_stack_bytes.
2636         (arm_init_machine_status): Initialize
2637         machine->static_chain_stack_bytes.
2638
2639 2018-03-22  Kelvin Nilsen  <kelvin@gcc.gnu.org>
2640
2641         PR target/84760
2642         * doc/extend.texi: Add four new prototypes for vec_ld.
2643         * config/rs6000/rs6000-builtin.def (LVX_V1TI): Reorder symbol
2644         definitions for more logical presentation.
2645         * config/rs6000/rs6000-c.c: (altivec_overloaded_builtins): Add
2646         entries for V1TI variants of __builtin_altivec_ld builtin.
2647         * config/rs6000/rs6000.c: (altivec_expand_lv_builtin): Add test and
2648         handling of V1TI variant of LVX icode pattern.
2649         (altivec_expand_builtin): Add case for ALTIVEC_BUILTIN_LVX_V1TI.
2650         (rs6000_gimple_fold_builtin): Likewise.
2651         (altivec_init_builtins): Add code to define
2652         __builtin_altivec_lvx_v1ti function.
2653
2654 2018-03-22  Jakub Jelinek  <jakub@redhat.com>
2655
2656         PR inline-asm/84941
2657         * function.c (match_asm_constraints_1): Don't do the optimization
2658         if input isn't a REG, SUBREG, MEM or constant.
2659
2660 2018-03-22  Tom de Vries  <tom@codesourcery.com>
2661
2662         PR tree-optimization/84956
2663         * tree-ssa-tail-merge.c (find_clusters_1): Skip bbs with
2664         bb_has_abnormal_pred.
2665
2666 2018-03-22  Jakub Jelinek  <jakub@redhat.com>
2667
2668         PR sanitizer/85018
2669         * dwarf2asm.c (dw2_output_indirect_constant_1): Set
2670         DECL_INITIAL (decl) to decl at the end.
2671         * varasm.c (use_blocks_for_decl_p): Revert the 2018-03-20 change,
2672         adjust the comment.
2673
2674 2018-03-21  Joseph Myers  <joseph@codesourcery.com>
2675
2676         * doc/extend.texi (__builtin_tgmath): Document when complex
2677         integer types are treated as _Complex _Float64.
2678
2679 2018-03-21  Tom de Vries  <tom@codesourcery.com>
2680
2681         * doc/extend.texi (__builtin_extend_pointer): Remove pasto.
2682
2683 2018-03-21  Jakub Jelinek  <jakub@redhat.com>
2684
2685         PR tree-optimization/84960
2686         * tree-cfg.c (remove_bb): Don't move forced labels into bb->prev_bb
2687         if it is ENTRY block, move them into single succ of ENTRY in that case.
2688
2689 2018-03-21  Richard Sandiford  <richard.sandiford@linaro.org>
2690
2691         PR tree-optimization/84811
2692         * poly-int.h (poly_span_traits): Remove the T3 parameter and
2693         promote HOST_WIDE_INT T2 - T1 results to unsigned HOST_WIDE_INT.
2694         (maybe_in_range_p, known_in_range_p, ranges_known_overlap_p):
2695         (known_subrange_p): Update accordingly.  Cast each value involved
2696         in the size comparison, rather than casting the result of the
2697         subtraction.
2698
2699 2018-03-21  Jakub Jelinek  <jakub@redhat.com>
2700
2701         PR tree-optimization/84982
2702         * gimple-ssa-store-merging.c (invert_op): Handle boolean inversion
2703         by flipping the least significant bit rather than all bits from
2704         bitpos to bitpos + bitsize - 1.
2705
2706 2018-03-21  Nathan Sidwell  <nathan@acm.org>
2707
2708         * doc/extend.texi (Deprecated Features): Remove mention of
2709         long-deleted deprecations.
2710
2711 2018-03-21  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2712
2713         PR jit/84288
2714         * configure.ac (gcc_cv_ld_soname) <*-*-solaris2*>: Set.
2715         * configure: Regenerate.
2716
2717 2018-03-21  Tom de Vries  <tom@codesourcery.com>
2718
2719         PR tree-optimization/83126
2720         * tree-parloops.c (num_phis): New function.
2721         (gen_parallel_loop): Detect and handle canonicalize_loop_ivs failure.
2722
2723 2018-03-21  Nathan Sidwell  <nathan@acm.org>
2724
2725         * doc/extend.texi (Deprecated Features): Update deprecated flags,
2726         mention anon-struct/union members and trailing attributes.
2727
2728 2018-03-21  Bin Cheng  <bin.cheng@arm.com>
2729
2730         PR tree-optimization/84969
2731         * tree-loop-distribution.c (fuse_memset_builtins): Don't reorder
2732         builtin memset partitions if they set different rhs values.
2733
2734 2018-03-21  Jakub Jelinek  <jakub@redhat.com>
2735
2736         PR rtl-optimization/84989
2737         * simplify-rtx.c (simplify_unary_operation_1): Don't try to simplify
2738         VEC_DUPLICATE with scalar result mode.
2739
2740 2018-03-21  Martin Liska  <mliska@suse.cz>
2741
2742         PR ipa/84963
2743         * ipa-icf.c (sem_item_optimizer::fixup_points_to_sets): Remove
2744         not intended return statement.
2745
2746 2018-03-21  Martin Liska  <mliska@suse.cz>
2747
2748         PR target/84988
2749         * tree-chkp.c (CHKP_ARRAY_MAX_CHECK_STEPS): Define a new macro.
2750         (chkp_find_bound_slots_1): Limit number of iterations.
2751
2752 2018-03-20  David H. Gutteridge  <dhgutteridge@sympatico.ca>
2753
2754         PR target/84838
2755         * Minor grammar fixes for x86 options.
2756
2757 2018-03-20  Jakub Jelinek  <jakub@redhat.com>
2758
2759         PR debug/84875
2760         * dce.c (delete_unmarked_insns): Don't remove frame related noop moves
2761         holding REG_CFA_RESTORE notes, instead turn them into a USE.
2762
2763 2018-03-20  Peter Bergner  <bergner@vnet.ibm.com>
2764
2765         PR target/83789
2766         * config/rs6000/altivec.md (altivec_lvx_<mode>_2op): Delete define_insn.
2767         (altivec_lvx_<mode>_1op): Likewise.
2768         (altivec_stvx_<mode>_2op): Likewise.
2769         (altivec_stvx_<mode>_1op): Likewise.
2770         (altivec_lvx_<VM2:mode>): New define_expand.
2771         (altivec_stvx_<VM2:mode>): Likewise.
2772         (altivec_lvx_<VM2:mode>_2op_<P:mptrsize>): New define_insn.
2773         (altivec_lvx_<VM2:mode>_1op_<P:mptrsize>): Likewise.
2774         (altivec_stvx_<VM2:mode>_2op_<P:mptrsize>): Likewise.
2775         (altivec_stvx_<VM2:mode>_1op_<P:mptrsize>): Likewise.
2776         * config/rs6000/rs6000-p8swap.c (rs6000_gen_stvx): Use new expanders.
2777         (rs6000_gen_lvx): Likewise.
2778         * config/rs6000/rs6000.c (altivec_expand_lv_builtin): Likewise.
2779         (altivec_expand_stv_builtin): Likewise.
2780         (altivec_expand_builtin): Likewise.
2781         * config/rs6000/vector.md: Likewise.
2782
2783 2018-03-20  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
2784
2785         PR target/82518
2786         * config/arm/arm.c (arm_array_mode_supported_p): Return false for
2787         BYTES_BIG_ENDIAN.
2788
2789 2018-03-20  Richard Biener  <rguenther@suse.de>
2790
2791         PR target/84986
2792         * config/i386/i386.c (ix86_add_stmt_cost): Only cost
2793         sign-conversions as zero, fall back to standard scalar_stmt
2794         cost for the rest.
2795
2796 2018-03-20  Martin Liska  <mliska@suse.cz>
2797
2798         PR ipa/84825
2799         * predict.c (rebuild_frequencies): Handle case when we have
2800         PROFILE_ABSENT, but flag_guess_branch_prob is false.
2801
2802 2018-03-20  Jakub Jelinek  <jakub@redhat.com>
2803
2804         PR target/84990
2805         * dwarf2asm.c (dw2_output_indirect_constant_1): Temporarily turn off
2806         flag_section_anchors.
2807         * varasm.c (use_blocks_for_decl_p): Remove hack for
2808         dw2_force_const_mem.
2809
2810         PR target/84845
2811         * config/aarch64/aarch64.md (*aarch64_reg_<mode>3_neg_mask2): Rename
2812         to ...
2813         (*aarch64_<optab>_reg_<mode>3_neg_mask2): ... this.  If pseudos can't
2814         be created, use lowpart_subreg of operands[0] rather than operands[0]
2815         itself.
2816         (*aarch64_reg_<mode>3_minus_mask): Rename to ...
2817         (*aarch64_ashl_reg_<mode>3_minus_mask): ... this.
2818         (*aarch64_<optab>_reg_di3_mask2): Use const_int_operand predicate
2819         and n constraint instead of aarch64_shift_imm_di and Usd.
2820         (*aarch64_reg_<optab>_minus<mode>3): Rename to ...
2821         (*aarch64_<optab>_reg_minus<mode>3): ... this.
2822
2823 2018-03-20  Sudakshina Das  <sudi.das@arm.com>
2824
2825         PR target/82989
2826         * config/arm/neon.md (ashldi3_neon): Update ?s for constraints
2827         to favor GPR over NEON registers.
2828         (<shift>di3_neon): Likewise.
2829
2830 2018-03-20  Tom de Vries  <tom@codesourcery.com>
2831
2832         PR target/84952
2833         * config/nvptx/nvptx.c (nvptx_single): Don't neuter bar.sync.
2834         (nvptx_process_pars): Emit bar.sync asap and alap.
2835
2836 2018-03-20  Tom de Vries  <tom@codesourcery.com>
2837
2838         PR target/84954
2839         * config/nvptx/nvptx.c (prevent_branch_around_nothing): Also update
2840         seen_label if seen_label is already set.
2841
2842 2018-03-20  Jakub Jelinek  <jakub@redhat.com>
2843
2844         PR target/84945
2845         * config/i386/i386.c (fold_builtin_cpu): For features above 31
2846         use __cpu_features2 variable instead of __cpu_model.__cpu_features[0].
2847         Use 1U instead of 1.  Formatting fixes.
2848
2849         PR c/84953
2850         * builtins.c (fold_builtin_strpbrk): For strpbrk(x, "") use type
2851         instead of TREE_TYPE (s1) for the return value.
2852
2853 2018-03-19  Jakub Jelinek  <jakub@redhat.com>
2854
2855         PR tree-optimization/84946
2856         * gimple-ssa-store-merging.c (mem_valid_for_store_merging): Compute
2857         bitsize + bitsize in poly_uint64 rather than poly_int64.
2858
2859         PR sanitizer/78651
2860         * dwarf2asm.c: Include fold-const.c.
2861         (dw2_output_indirect_constant_1): Set DECL_INITIAL (decl) to ADDR_EXPR
2862         of decl rather than decl itself.
2863
2864         PR rtl-optimization/84643
2865         * memmodel.h (enum memmodel): Add MEMMODEL_MAX enumerator.
2866
2867 2018-03-19  Maxim Ostapenko  <m.ostapenko@samsung.com>
2868
2869         PR sanitizer/78651
2870         * dwarf2asm.c (dw2_output_indirect_constant_1): Disable ASan before
2871         calling assemble_variable.
2872
2873 2018-03-19  Sudakshina Das  <sudi.das@arm.com>
2874
2875         PR target/81647
2876         * config/aarch64/aarch64-simd.md (vec_cmp<mode><v_int_equiv>): Modify
2877         instructions for UNLT, UNLE, UNGT, UNGE, UNEQ, UNORDERED and ORDERED.
2878
2879 2018-03-19  Jim Wilson  <jimw@sifive.com>
2880
2881         PR bootstrap/84856
2882         * config/riscv/riscv.c (riscv_function_arg_boundary): Use
2883         PREFERRED_STACK_BOUNDARY instead of STACK_BOUNDARY.
2884         (riscv_first_stack_step): Likewise.
2885         (riscv_option_override): Use STACK_BOUNDARY instead of
2886         MIN_STACK_BOUNDARY.
2887         * config/riscv/riscv.h (STACK_BOUNDARY): Renamed from
2888         MIN_STACK_BOUNDARY.
2889         (BIGGEST_ALIGNMENT): Set to 128.
2890         (PREFERRED_STACK_BOUNDARY): Renamed from STACK_BOUNDARY.
2891         (RISCV_STACK_ALIGN): Use PREFERRED_STACK_BOUNDARY instead of
2892         STACK_BOUNDARY.
2893
2894 2018-03-19  Richard Biener  <rguenther@suse.de>
2895
2896         PR tree-optimization/84933
2897         * tree-vrp.c (set_and_canonicalize_value_range): Treat out-of-bound
2898         values as -INF/INF when canonicalizing an ANTI_RANGE to a RANGE.
2899
2900 2018-03-19  Richard Biener  <rguenther@suse.de>
2901
2902         PR tree-optimization/84859
2903         * tree-ssa-phiopt.c (single_trailing_store_in_bb): New function.
2904         (cond_if_else_store_replacement): Perform sinking operation on
2905         single-store BBs regardless of MAX_STORES_TO_SINK setting.
2906         Generalize what a BB with a single eligible store is.
2907
2908 2018-03-19  Richard Biener  <rguenther@suse.de>
2909
2910         PR tree-optimization/84929
2911         * tree-data-ref.c (analyze_siv_subscript_cst_affine): Guard
2912         chrec_is_positive against non-chrec arg.
2913
2914 2018-03-19  Tamar Christina  <tamar.christina@arm.com>
2915
2916         PR target/84711
2917         * config/arm/arm.c (arm_can_change_mode_class): revert r258554.
2918
2919 2018-03-18  Martin Liska  <mliska@suse.cz>
2920
2921         PR rtl-optimization/84635
2922         * regrename.c (build_def_use): Use matches_mode only when
2923         matches >= 0.
2924
2925 2018-03-18  Richard Sandiford  <richard.sandiford@linaro.org>
2926
2927         PR tree-optimization/84913
2928         * tree-vect-loop.c (vectorizable_reduction): Don't try to
2929         vectorize chains of COND_EXPRs.
2930
2931 2018-03-18  Chung-Ju Wu  <jasonwucj@gmail.com>
2932
2933         * config/nds32/nds32.h (MAX_REGS_PER_ADDRESS): Fix the value.
2934
2935 2018-03-18  Chung-Ju Wu  <jasonwucj@gmail.com>
2936
2937         * config/nds32/nds32.h (LOGICAL_OP_NON_SHORT_CIRCUIT): Define.
2938
2939 2018-03-18  Chung-Ju Wu  <jasonwucj@gmail.com>
2940
2941         * config/nds32/nds32.h (CLZ_DEFINED_VALUE_AT_ZERO): Define.
2942
2943 2018-03-17  Chung-Ju Wu  <jasonwucj@gmail.com>
2944             Kito Cheng  <kito.cheng@gmail.com>
2945
2946         * config/nds32/nds32-protos.h (nds32_adjust_reg_alloc_order): Declare.
2947         * config/nds32/nds32.c (nds32_reg_alloc_order_for_speed): New array.
2948         (nds32_adjust_reg_alloc_order): New function.
2949         * config/nds32/nds32.h (ADJUST_REG_ALLOC_ORDER): Define.
2950
2951 2018-03-17  Kito Cheng  <kito.cheng@gmail.com>
2952
2953         * config/nds32/nds32.c (nds32_asm_output_mi_thunk,
2954         nds32_print_operand, nds32_print_operand_address): Use
2955         HOST_WIDE_INT_PRINT_DEC instead.
2956
2957 2018-03-17  Chung-Ju Wu  <jasonwucj@gmail.com>
2958
2959         * config/nds32/nds32.c (nds32_register_priority): Modify cost.
2960
2961 2018-03-17  Jakub Jelinek  <jakub@redhat.com>
2962
2963         PR target/84902
2964         * config/i386/i386.c (initial_ix86_tune_features,
2965         initial_ix86_arch_features): Use unsigned HOST_WIDE_INT rather than
2966         unsigned long long.
2967         (set_ix86_tune_features): Change ix86_tune_mask from unsigned int
2968         to unsigned HOST_WIDE_INT, initialize to HOST_WIDE_INT_1U << ix86_tune
2969         rather than 1u << ix86_tune.  Formatting fix.
2970         (ix86_option_override_internal): Change ix86_arch_mask from
2971         unsigned int to unsigned HOST_WIDE_INT, initialize to
2972         HOST_WIDE_INT_1U << ix86_arch rather than 1u << ix86_arch.
2973         (ix86_function_specific_restore): Likewise.
2974
2975 2018-03-16  Jakub Jelinek  <jakub@redhat.com>
2976
2977         PR target/84899
2978         * postreload.c (reload_combine_recognize_pattern): Perform
2979         INTVAL addition in unsigned HOST_WIDE_INT type to avoid UB and
2980         truncate_int_for_mode the result for the destination's mode.
2981
2982         PR c/84909
2983         * hsa-gen.c (mem_type_for_type): Fix comment typo.
2984         * tree-vect-loop-manip.c (vect_create_cond_for_niters_checks):
2985         Likewise.
2986         * gimple-ssa-warn-restrict.c (builtin_memref::set_base_and_offset):
2987         Likewise.
2988
2989 2018-03-16  Vladimir Makarov  <vmakarov@redhat.com>
2990
2991         PR target/84876
2992         * lra-assigns.c (lra_split_hard_reg_for): Don't use
2993         regno_allocno_class_array and sorted_pseudos.
2994         * lra-constraints.c (spill_hard_reg_in_range): Ignore hard regs in
2995         insns where regno is used.
2996
2997 2018-03-16  Martin Liska  <mliska@suse.cz>
2998
2999         PR ipa/84833
3000         * multiple_target.c (create_dispatcher_calls): Redirect
3001         reference in the symbol table.
3002
3003 2018-03-16  Martin Liska  <mliska@suse.cz>
3004
3005         PR ipa/84722
3006         * multiple_target.c (create_dispatcher_calls): Redirect also
3007         an alias.
3008
3009 2018-03-16  Jakub Jelinek  <jakub@redhat.com>
3010
3011         PR c++/79937
3012         PR c++/82410
3013         * tree.h (TARGET_EXPR_NO_ELIDE): Define.
3014         * gimplify.c (gimplify_modify_expr_rhs): Don't elide TARGET_EXPRs with
3015         TARGET_EXPR_NO_ELIDE flag set unless *expr_p is INIT_EXPR.
3016
3017 2018-03-16  Julia Koval  <julia.koval@intel.com>
3018
3019         * doc/invoke.texi (Skylake Server): Add CLWB.
3020         Cannonlake): Remove CLWB.
3021
3022 2018-03-16  Jakub Jelinek  <jakub@redhat.com>
3023
3024         PR tree-optimization/84841
3025         * tree-ssa-reassoc.c (INTEGER_CONST_TYPE): Change to 1 << 4 from
3026         1 << 3.
3027         (FLOAT_ONE_CONST_TYPE): Define.
3028         (constant_type): Return FLOAT_ONE_CONST_TYPE for -1.0 and 1.0.
3029         (sort_by_operand_rank): Put entries with higher constant_type last
3030         rather than first to match comments.
3031
3032 2018-03-15  Sandra Loosemore  <sandra@codesourcery.com>
3033
3034         * config/nios2/nios2.md (movsi_internal): Fix thinko in
3035         split predicate.
3036
3037 2018-03-15  Jakub Jelinek  <jakub@redhat.com>
3038
3039         PR c++/79085
3040         * calls.c (expand_call): For TREE_ADDRESSABLE rettype ignore alignment
3041         check and use address of target always.
3042
3043 2018-03-15  H.J. Lu  <hongjiu.lu@intel.com>
3044
3045         PR target/84574
3046         * config/i386/i386.c (indirect_thunk_needed): Update comments.
3047         (indirect_thunk_bnd_needed): Likewise.
3048         (indirect_thunks_used): Likewise.
3049         (indirect_thunks_bnd_used): Likewise.
3050         (indirect_return_needed): New.
3051         (indirect_return_bnd_needed): Likewise.
3052         (output_indirect_thunk_function): Add a bool argument for
3053         function return.
3054         (output_indirect_thunk_function): Don't generate alias for
3055         function return thunk.
3056         (ix86_code_end): Call output_indirect_thunk_function to generate
3057         function return thunks.
3058         (ix86_output_function_return): Set indirect_return_bnd_needed
3059         and indirect_return_needed instead of indirect_thunk_bnd_needed
3060         and indirect_thunk_needed.
3061
3062 2018-03-15  Olga Makhotina  <olga.makhotina@intel.com>
3063
3064         * config/i386/sgxintrin.h (_enclv_u32): New intrinsic.
3065         (__enclv_bc, __enclv_cd, __enclv_generic): New definitions.
3066         (ERDINFO, ETRACKC, ELDBC, ELDUC): New leaves.
3067
3068 2018-03-15  David Malcolm  <dmalcolm@redhat.com>
3069             Paul Hua <paul.hua.gm@gmail.com>
3070
3071         PR c/84852
3072         * gcc.dg/fixits-pr84852-1.c: Fix filename in dg-regexp.
3073
3074 2018-03-15  Segher Boessenkool  <segher@kernel.crashing.org>
3075
3076         * config/rs6000/rs6000.c (abi_v4_pass_in_fpr): Add back the
3077         TARGET_DOUBLE_FLOAT and TARGET_SINGLE_FLOAT conditions on the DFmode
3078         resp. SFmode cases.
3079
3080 2018-03-15  Tamar Christina  <tamar.christina@arm.com>
3081
3082         PR target/84711
3083         * config/arm/arm.c (arm_can_change_mode_class): Use GET_MODE_UNIT_SIZE
3084         instead of GET_MODE_SIZE when comparing Units.
3085
3086 2018-03-15  Vladimir Mezentsev  <vladimir.mezentsev@oracle.com>
3087
3088         PR target/68256
3089         * varasm.c (hash_section): Return an unchangeble hash value
3090         * config/aarch64/aarch64.c (aarch64_use_blocks_for_constant_p):
3091         Return !aarch64_can_use_per_function_literal_pools_p ().
3092
3093 2018-03-15  Jakub Jelinek  <jakub@redhat.com>
3094
3095         PR target/84860
3096         * optabs.c (emit_conditional_move): Pass address of cmode's copy
3097         rather than address of cmode as last argument to prepare_cmp_insn.
3098
3099 2018-03-15  Julia Koval  <julia.koval@intel.com>
3100
3101         * config/i386/i386.c (F_AVX512VBMI2, F_GFNI, F_VPCLMULQDQ,
3102         F_AVX512VNNI, F_AVX512BITALG): New.
3103
3104 2018-03-14  John David Anglin  <danglin@gcc.gnu.org>
3105
3106         PR target/83451
3107         * config/pa/pa.c (pa_emit_move_sequence):  Always emit secondary reload
3108         insn for floating-point loads and stores.
3109
3110 2018-03-14  Carl Love  <cel@us.ibm.com>
3111
3112         * config/rs6000/rs6000-c.c: Add macro definitions for
3113         ALTIVEC_BUILTIN_VEC_PERMXOR.
3114         * config/rs6000/rs6000.h: Add #define for vec_permxor builtin.
3115         * config/rs6000/rs6000-builtin.def: Add macro expansions for VPERMXOR.
3116         * config/rs6000/altivec.md (altivec_vpermxor): New define expand.
3117         * config/rs6000/rs6000-p8swap.c (rtx_is_swappable_p): Add case
3118         UNSPEC_VPERMXOR.
3119         * config/doc/extend.texi: Add prototypes for vec_permxor.
3120
3121 2018-03-14  David Malcolm  <dmalcolm@redhat.com>
3122
3123         PR c/84852
3124         * diagnostic-show-locus.c (class layout_point): Convert m_line
3125         from int to linenum_type.
3126         (line_span::comparator): Use linenum "compare" function when
3127         comparing line numbers.
3128         (test_line_span): New function.
3129         (layout_range::contains_point): Convert param "row" from int to
3130         linenum_type.
3131         (layout_range::intersects_line_p): Likewise.
3132         (layout::will_show_line_p): Likewise.
3133         (layout::print_source_line): Likewise.
3134         (layout::should_print_annotation_line_p): Likewise.
3135         (layout::print_annotation_line): Likewise.
3136         (layout::print_leading_fixits): Likewise.
3137         (layout::annotation_line_showed_range_p): Likewise.
3138         (struct line_corrections): Likewise for field m_row.
3139         (line_corrections::line_corrections): Likewise for param "row".
3140         (layout::print_trailing_fixits): Likewise.
3141         (layout::get_state_at_point): Likewise.
3142         (layout::get_x_bound_for_row): Likewise.
3143         (layout::print_line): Likewise.
3144         (diagnostic_show_locus): Likewise for locals "last_line" and
3145         "row".
3146         (selftest::diagnostic_show_locus_c_tests): Call test_line_span.
3147         * input.c (selftest::test_linenum_comparisons): New function.
3148         (selftest::input_c_tests): Call it.
3149         * selftest.c (selftest::test_assertions): Test ASSERT_GT,
3150         ASSERT_GT_AT, ASSERT_LT, and ASSERT_LT_AT.
3151         * selftest.h (ASSERT_GT): New macro.
3152         (ASSERT_GT_AT): New macro.
3153         (ASSERT_LT): New macro.
3154         (ASSERT_LT_AT): New macro.
3155
3156 2018-03-14  Segher Boessenkool  <segher@kernel.crashing.org>
3157
3158         PR rtl-optimization/84780
3159         * combine.c (distribute_links): Don't make a link based on pc_rtx.
3160
3161 2018-03-14  Martin Liska  <mliska@suse.cz>
3162
3163         * tree.c (record_node_allocation_statistics): Use
3164         get_stats_node_kind.
3165         (get_stats_node_kind): New function extracted from
3166         record_node_allocation_statistics.
3167         (free_node): Use get_stats_node_kind.
3168
3169 2018-03-14  Richard Biener  <rguenther@suse.de>
3170
3171         * tree-ssa-pre.c (compute_antic_aux): Remove code that asserts
3172         that the value-set of ANTIC_IN doesn't grow.
3173
3174         Revert
3175         * tree-ssa-pre.c (struct bb_bitmap_sets): Add visited_with_visited_succs
3176         member.
3177         (BB_VISITED_WITH_VISITED_SUCCS): New define.
3178         (compute_antic): Initialize BB_VISITED_WITH_VISITED_SUCCS.
3179
3180 2018-03-14  Julia Koval  <julia.koval@intel.com>
3181
3182         * config.gcc (icelake-client, icelake-server): New.
3183         (icelake): Remove.
3184         * config/i386/i386.c (initial_ix86_tune_features): Extend to 64 bit.
3185         (initial_ix86_arch_features): Ditto.
3186         (PTA_SKYLAKE): Add SGX.
3187         (PTA_ICELAKE): Remove.
3188         (PTA_ICELAKE_CLIENT): New.
3189         (PTA_ICELAKE_SERVER): New.
3190         (ix86_option_override_internal): Split up icelake on icelake client and
3191         icelake server.
3192         (get_builtin_code_for_version): Ditto.
3193         (fold_builtin_cpu): Ditto.
3194         * config/i386/driver-i386.c (config/i386/driver-i386.c): Ditto.
3195         * config/i386/i386-c.c (ix86_target_macros_internal): Ditto
3196         * config/i386/i386.h (processor_type): Ditto.
3197         * doc/invoke.texi: Ditto.
3198
3199 2018-03-14  Jakub Jelinek  <jakub@redhat.com>
3200
3201         PR sanitizer/83392
3202         * sanopt.c (maybe_optimize_ubsan_ptr_ifn): Handle also
3203         INTEGER_CST offset, add it together with bitpos / 8 and
3204         sign extend based on POINTER_SIZE.
3205
3206         PR target/84844
3207         Revert
3208         2017-04-20  Uros Bizjak  <ubizjak@gmail.com>
3209
3210         PR target/78090
3211         * config/i386/constraints.md (Yc): New register constraint.
3212         * config/i386/i386.md (*float<SWI48:mode><MODEF:mode>2_mixed):
3213         Use Yc constraint for alternative 2 of operand 0.  Remove
3214         preferred_for_speed attribute.
3215
3216 2018-03-14  Richard Biener  <rguenther@suse.de>
3217
3218         PR tree-optimization/84830
3219         * tree-ssa-pre.c (compute_antic_aux): Intersect the new ANTIC_IN
3220         with the old one to avoid oscillations.
3221
3222 2018-03-13  Vladimir Makarov  <vmakarov@redhat.com>
3223
3224         PR target/83712
3225         * lra-assigns.c (find_all_spills_for): Ignore uninteresting
3226         pseudos.
3227         (assign_by_spills): Return a flag of reload assignment failure.
3228         Do not process the reload assignment failures.  Do not spill other
3229         reload pseudos if they has the same reg class.  Update n if
3230         necessary.
3231         (lra_assign): Add a return arg.  Set up from the result of
3232         assign_by_spills call.
3233         (find_reload_regno_insns, lra_split_hard_reg_for): New functions.
3234         * lra-constraints.c (split_reg): Add a new arg.  Use it instead of
3235         usage_insns if it is not NULL.
3236         (spill_hard_reg_in_range): New function.
3237         (split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
3238         * lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
3239         function prototypes.
3240         (lra_assign): Change prototype.
3241         * lra.c (lra): Add code to deal with fails by splitting hard reg
3242         live ranges.
3243
3244 2018-03-01  Palmer Dabbelt  <palmer@sifive.com>
3245
3246         * config/riscv/riscv.opt (mrelax): New option.
3247         * config/riscv/riscv.c (riscv_file_start): Emit ".option
3248         "norelax" when riscv_mrelax is disabled.
3249         * doc/invoke.texi (RISC-V): Document "-mrelax" and "-mno-relax".
3250
3251 2018-03-13  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
3252
3253         PR target/84743
3254         * config/rs6000/rs6000.c (rs6000_reassociation_width): Disable parallel
3255         reassociation for int modes.
3256
3257 2018-03-13  Richard Sandiford  <richard.sandiford@linaro.org>
3258
3259         * tree-vect-loop-manip.c (vect_maybe_permute_loop_masks):
3260         Reverse the choice between VEC_UNPACK_LO_EXPR and VEC_UNPACK_HI_EXPR
3261         for big-endian.
3262         * config/aarch64/iterators.md (hi_lanes_optab): New int attribute.
3263         * config/aarch64/aarch64-sve.md
3264         (*aarch64_sve_<perm_insn><perm_hilo><mode>): Rename to...
3265         (aarch64_sve_<perm_insn><perm_hilo><mode>): ...this.
3266         (*extend<mode><Vwide>2): Rename to...
3267         (aarch64_sve_extend<mode><Vwide>2): ...this.
3268         (vec_unpack<su>_<perm_hilo>_<mode>): Turn into a define_expand,
3269         renaming the old pattern to...
3270         (aarch64_sve_punpk<perm_hilo>_<mode>): ...this.  Only define
3271         unsigned packs.
3272         (vec_unpack<su>_<perm_hilo>_<SVE_BHSI:mode>): Turn into a
3273         define_expand, renaming the old pattern to...
3274         (aarch64_sve_<su>unpk<perm_hilo>_<SVE_BHSI:mode>): ...this.
3275         (*vec_unpacku_<perm_hilo>_<mode>_no_convert): Delete.
3276         (vec_unpacks_<perm_hilo>_<mode>): Take BYTES_BIG_ENDIAN into
3277         account when deciding which SVE instruction the optab should use.
3278         (vec_unpack<su_optab>_float_<perm_hilo>_vnx4si): Likewise.
3279
3280 2018-03-13  Richard Sandiford  <richard.sandiford@linaro.org>
3281
3282         * config/aarch64/aarch64.md (V4_REGNUM, V8_REGNUM, V12_REGNUM)
3283         (V20_REGNUM, V24_REGNUM, V28_REGNUM, P1_REGNUM, P2_REGNUM, P3_REGNUM)
3284         (P4_REGNUM, P5_REGNUM, P6_REGNUM, P8_REGNUM, P9_REGNUM, P10_REGNUM)
3285         (P11_REGNUM, P12_REGNUM, P13_REGNUM, P14_REGNUM): New define_constants.
3286         (tlsdesc_small_<mode>): Turn a define_expand and use
3287         tlsdesc_small_sve_<mode> for SVE.  Rename original define_insn to...
3288         (tlsdesc_small_advsimd_<mode>): ...this.
3289         (tlsdesc_small_sve_<mode>): New pattern.
3290
3291 2018-03-13  Richard Sandiford  <richard.sandiford@linaro.org>
3292
3293         * config/aarch64/iterators.md (UNSPEC_SMUL_HIGHPART)
3294         (UNSPEC_UMUL_HIGHPART): New constants.
3295         (MUL_HIGHPART): New int iteraor.
3296         (su): Handle UNSPEC_SMUL_HIGHPART and UNSPEC_UMUL_HIGHPART.
3297         * config/aarch64/aarch64-sve.md (<su>mul<mode>3_highpart): New
3298         define_expand.
3299         (*<su>mul<mode>3_highpart): New define_insn.
3300
3301 2018-03-13  Eric Botcazou  <ebotcazou@adacore.com>
3302
3303         PR lto/84805
3304         * ipa-devirt.c (odr_subtypes_equivalent_p): Do not get the ODR type of
3305         incomplete types.
3306
3307 2018-03-13  Martin Liska  <mliska@suse.cz>
3308
3309         PR ipa/84658.
3310         * (sem_item_optimizer::sem_item_optimizer): Initialize new
3311         vector.
3312         (sem_item_optimizer::~sem_item_optimizer): Release it.
3313         (sem_item_optimizer::merge_classes): Register variable aliases.
3314         (sem_item_optimizer::fixup_pt_set): New function.
3315         (sem_item_optimizer::fixup_points_to_sets): Likewise.
3316         * ipa-icf.h: Declare new variables and functions.
3317
3318 2018-03-13  Jakub Jelinek  <jakub@redhat.com>
3319
3320         PR middle-end/84834
3321         * match.pd ((A & C) != 0 ? D : 0): Use INTEGER_CST@2 instead of
3322         integer_pow2p@2 and test integer_pow2p in condition.
3323         (A < 0 ? C : 0): Similarly for @1.
3324
3325         PR middle-end/84831
3326         * stmt.c (parse_output_constraint): If the CONSTRAINT_LEN (*p, p)
3327         characters starting at p contain '\0' character, don't look beyond
3328         that.
3329
3330         PR target/84827
3331         * config/i386/i386.md (round<mode>2): For 387 fancy math, disable
3332         pattern if -ftrapping-math -fno-fp-int-builtin-inexact.
3333
3334         PR target/84828
3335         * reg-stack.c (change_stack): Change update_end var from int to
3336         rtx_insn *, if non-NULL don't update just BB_END (current_block), but
3337         also call set_block_for_insn on the newly added insns and rescan.
3338
3339         PR target/84786
3340         * config/i386/sse.md (sse2_loadhpd): Use Yv constraint rather than v
3341         on the last operand.
3342
3343         PR c++/84704
3344         * tree.c (stabilize_reference_1): Return save_expr (e) for
3345         STATEMENT_LIST even if it doesn't have side-effects.
3346
3347 2018-03-12  Jonathan Wakely  <jwakely@redhat.com>
3348
3349         * doc/invoke.texi (-mclflushopt): Fix spelling of option.
3350
3351 2018-03-12  Renlin Li  <renlin.li@arm.com>
3352
3353         * config/aarch64/aarch64.md (movhf_aarch64): Fix mode argument to
3354         aarch64_output_scalar_simd_mov_immediate.
3355
3356 2018-03-12  Martin Sebor  <msebor@redhat.com>
3357
3358         PR tree-optimization/83456
3359         * gimple-fold.c (gimple_fold_builtin_memory_op): Avoid warning
3360         for perfectly overlapping calls to memcpy.
3361         (gimple_fold_builtin_memory_chk): Same.
3362         (gimple_fold_builtin_strcpy): Handle no-warning.
3363         (gimple_fold_builtin_stxcpy_chk): Same.
3364         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Handle no-warning.
3365
3366 2018-03-12  Segher Boessenkool  <segher@kernel.crashing.org>
3367
3368         * config/rs6000/rs6000.c (abi_v4_pass_in_fpr): Add bool "named"
3369         parameter.  Use it for SFmode.
3370         (rs6000_function_arg_advance_1): Adjust.
3371         (rs6000_function_arg): Adjust.
3372         (rs6000_gimplify_va_arg): Pass false for that new parameter.
3373
3374 2018-03-12  Segher Boessenkool  <segher@kernel.crashing.org>
3375
3376         PR rtl-optimization/84169
3377         PR rtl-optimization/84780
3378         * combine.c (can_combine_p): Check for a 2-insn combination whether
3379         the destination register is used between the two insns, too.
3380
3381 2018-03-12  Richard Biener  <rguenther@suse.de>
3382
3383         PR tree-optimization/84803
3384         * tree-if-conv.c (ifcvt_memrefs_wont_trap): Don't do anything
3385         for refs DR analysis didn't process.
3386
3387 2018-03-12  Richard Biener  <rguenther@suse.de>
3388
3389         PR tree-optimization/84777
3390         * tree-ssa-loop-ch.c (should_duplicate_loop_header_p): For
3391         force-vectorize loops ignore whether we are optimizing for size.
3392
3393 2018-03-12  Chung-Ju Wu  <jasonwucj@gmail.com>
3394
3395         * config/nds32/nds32.c (nds32_md_asm_adjust): New function.
3396         (TARGET_MD_ASM_ADJUST): Define.
3397
3398 2018-03-12  Monk Chiang  <sh.chiang04@gmail.com>
3399             Kito Cheng  <kito.cheng@gmail.com>
3400             Chung-Ju Wu  <jasonwucj@gmail.com>
3401
3402         * config/nds32/nds32.c (nds32_compute_stack_frame,
3403         nds32_emit_stack_push_multiple, nds32_emit_stack_pop_multiple,
3404         nds32_emit_stack_v3push, nds32_emit_stack_v3pop,
3405         nds32_emit_adjust_frame, nds32_expand_prologue, nds32_expand_epilogue,
3406         nds32_expand_prologue_v3push, nds32_expand_epilogue_v3pop): Refine.
3407         * config/nds32/nds32.h (NDS32_FIRST_CALLEE_SAVE_GPR_REGNUM,
3408         NDS32_LAST_CALLEE_SAVE_GPR_REGNUM, NDS32_V3PUSH_AVAILABLE_P): New.
3409         * config/nds32/nds32.md (prologue, epilogue): Use macro
3410         NDS32_V3PUSH_AVAILABLE_P to do checking.
3411
3412 2018-03-11  Jakub Jelinek  <jakub@redhat.com>
3413
3414         PR debug/58150
3415         * dwarf2out.c (gen_enumeration_type_die): Don't guard adding
3416         DW_AT_declaration for ENUM_IS_OPAQUE on -gdwarf-4 or -gno-strict-dwarf,
3417         but on TYPE_SIZE.  Don't do anything for ENUM_IS_OPAQUE if not creating
3418         a new die.  Don't set TREE_ASM_WRITTEN if ENUM_IS_OPAQUE.  Guard
3419         addition of most attributes on !orig_type_die or the attribute not
3420         being present already.  Assert TYPE_VALUES is NULL for ENUM_IS_OPAQUE.
3421
3422 2018-03-11  Kito Cheng  <kito.cheng@gmail.com>
3423             Chung-Ju Wu  <jasonwucj@gmail.com>
3424
3425         * config/nds32/nds32.c (nds32_cpu_cpp_builtins): Modify to define
3426         __NDS32_VH__ macro.
3427         * config/nds32/nds32.opt (mvh): New option.
3428
3429 2018-03-11  Kito Cheng  <kito.cheng@gmail.com>
3430             Chung-Ju Wu  <jasonwucj@gmail.com>
3431
3432         * config/nds32/nds32-protos.h (nds32_cpu_cpp_builtins): Declare
3433         function.
3434         * config/nds32/nds32.c (nds32_cpu_cpp_builtins): New function.
3435         * config/nds32/nds32.h (TARGET_CPU_CPP_BUILTINS): Modify its
3436         definition.
3437
3438 2018-03-11  Kito Cheng  <kito.cheng@gmail.com>
3439             Chung-Ju Wu  <jasonwucj@gmail.com>
3440
3441         * config/nds32/nds32-memory-manipulation.c (nds32_expand_strlen): New
3442         function.
3443         * config/nds32/nds32-multiple.md (strlensi): New pattern.
3444         * config/nds32/nds32-protos.h (nds32_expand_strlen): Declare function.
3445
3446 2018-03-11  Monk Chiang  <sh.chiang04@gmail.com>
3447             Kito Cheng  <kito.cheng@gmail.com>
3448             Chung-Ju Wu  <jasonwucj@gmail.com>
3449
3450         * config/nds32/constants.md (unspec_element): Add UNSPEC_FFB,
3451         UNSPEC_FFMISM and UNSPEC_FLMISM.
3452         * config/nds32/nds32-intrinsic.c (bdesc_2arg): Add builtin description
3453         for ffb, ffmism and flmism.
3454         * config/nds32/nds32-intrinsic.md (unspec_ffb): Define new pattern.
3455         (unspec_ffmism): Ditto.
3456         (unspec_flmism): Ditto.
3457         (nds32_expand_builtin_impl): Check if string extension is available.
3458         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_FFB,
3459         NDS32_BUILTIN_FFMISM and NDS32_BUILTIN_FLMISM.
3460
3461 2018-03-10  Vladimir Makarov  <vmakarov@redhat.com>
3462
3463         Reverting patch:
3464         2018-03-09  Vladimir Makarov  <vmakarov@redhat.com>
3465
3466         PR target/83712
3467         * lra-assigns.c (assign_by_spills): Return a flag of reload
3468         assignment failure.  Do not process the reload assignment
3469         failures.  Do not spill other reload pseudos if they has the same
3470         reg class.
3471         (lra_assign): Add a return arg.  Set up from the result of
3472         assign_by_spills call.
3473         (find_reload_regno_insns, lra_split_hard_reg_for): New functions.
3474         * lra-constraints.c (split_reg): Add a new arg.  Use it instead of
3475         usage_insns if it is not NULL.
3476         (spill_hard_reg_in_range): New function.
3477         (split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
3478         * lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
3479         function prototypes.
3480         (lra_assign): Change prototype.
3481         * lra.c (lra): Add code to deal with fails by splitting hard reg
3482         live ranges.
3483
3484 2018-03-10  H.J. Lu  <hongjiu.lu@intel.com>
3485
3486         PR target/84807
3487         * config/i386/i386.opt: Replace Enforcment with Enforcement.
3488
3489 2018-03-10  Alexandre Oliva  <aoliva@redhat.com>
3490
3491         PR debug/84620
3492         * dwarf2out.h (dw_val_class): Add dw_val_class_symview.
3493         (dw_val_node): Add val_symbolic_view.
3494         * dwarf2out.c (dw_line_info_table): Add symviews_since_reset.
3495         (symview_upper_bound): New.
3496         (new_line_info_table): Initialize symviews_since_reset.
3497         (dwarf2out_source_line): Count symviews_since_reset and set
3498         symview_upper_bound.
3499         (dw_val_equal_p): Handle symview.
3500         (add_AT_symview): New.
3501         (print_dw_val): Handle symview.
3502         (attr_checksum, attr_checksum_ordered): Likewise.
3503         (same_dw_val_p, size_of_die): Likewise.
3504         (value_format, output_die): Likewise.
3505         (add_high_low_attributes): Use add_AT_symview for entry_view.
3506         (dwarf2out_finish): Reset symview_upper_bound, clear
3507         zero_view_p.
3508
3509 2018-03-09  Peter Bergner  <bergner@vnet.ibm.com>
3510
3511         PR target/83969
3512         * config/rs6000/rs6000.c (rs6000_offsettable_memref_p): New prototype.
3513         Add strict argument and use it.
3514         (rs6000_split_multireg_move): Update for new strict argument.
3515         (mem_operand_gpr): Disallow all non-offsettable addresses.
3516         * config/rs6000/rs6000.md (*movdi_internal64): Use YZ constraint.
3517
3518 2018-03-09  Jakub Jelinek  <jakub@redhat.com>
3519
3520         PR target/84772
3521         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Mark va_arg_tmp
3522         temporary TREE_ADDRESSABLE before gimplification of BUILT_IN_MEMCPY.
3523         * config/powerpcspe/powerpcspe.c (rs6000_gimplify_va_arg): Likewise.
3524
3525         PR c++/84767
3526         * tree-inline.c (copy_tree_body_r): For INDIRECT_REF of a remapped
3527         decl, use remap_type if we want to use the type.
3528
3529 2018-03-09  Martin Sebor  <msebor@redhat.com>
3530
3531         PR tree-optimization/84526
3532         * gimple-ssa-warn-restrict.c (builtin_memref::set_base_and_offset):
3533         Remove dead code.
3534         (builtin_access::generic_overlap): Be prepared to handle non-array
3535         base objects.
3536
3537 2018-03-09  Alexandre Oliva  <aoliva@redhat.com>
3538
3539         PR rtl-optimization/84682
3540         * lra-constraints.c (process_address_1): Check is_address flag
3541         for address constraints.
3542         (process_alt_operands): Likewise.
3543         * lra.c (lra_set_insn_recog_data): Pass asm operand locs to
3544         preprocess_constraints.
3545         * recog.h (preprocess_constraints): Add oploc parameter.
3546         Adjust callers.
3547         * recog.c (preprocess_constraints): Test address_operand for
3548         CT_ADDRESS constraints.
3549
3550 2018-03-09  Vladimir Makarov  <vmakarov@redhat.com>
3551
3552         PR target/83712
3553         * lra-assigns.c (assign_by_spills): Return a flag of reload
3554         assignment failure.  Do not process the reload assignment
3555         failures.  Do not spill other reload pseudos if they has the same
3556         reg class.
3557         (lra_assign): Add a return arg.  Set up from the result of
3558         assign_by_spills call.
3559         (find_reload_regno_insns, lra_split_hard_reg_for): New functions.
3560         * lra-constraints.c (split_reg): Add a new arg.  Use it instead of
3561         usage_insns if it is not NULL.
3562         (spill_hard_reg_in_range): New function.
3563         (split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
3564         * lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
3565         function prototypes.
3566         (lra_assign): Change prototype.
3567         * lra.c (lra): Add code to deal with fails by splitting hard reg
3568         live ranges.
3569
3570 2018-03-09  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
3571
3572         PR target/83193
3573         * common/config/arm/arm-common.c (arm_parse_arch_option_name):
3574         Accept complain bool parameter.  Only emit errors if it is true.
3575         (arm_parse_cpu_option_name): Likewise.
3576         (arm_target_thumb_only): Adjust callers of the above.
3577         * config/arm/arm-protos.h (arm_parse_cpu_option_name): Adjust
3578         prototype to take a default true bool parameter.
3579         (arm_parse_arch_option_name): Likewise.
3580
3581 2018-03-09  David Malcolm  <dmalcolm@redhat.com>
3582             Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
3583
3584         PR jit/64089
3585         PR jit/84288
3586         * Makefile.in (LD_VERSION_SCRIPT_OPTION, LD_SONAME_OPTION): New.
3587         * configure: Regenerate.
3588         * configure.ac ("linker --version-script option"): New.
3589         ("linker soname option"): New.
3590
3591 2018-03-09  Richard Biener  <rguenther@suse.de>
3592
3593         PR tree-optimization/84775
3594         * tree-if-conv.c (add_bb_predicate_gimplified_stmts): Delink
3595         immediate uses of predicate stmts and mark them modified.
3596
3597         Revert
3598         PR tree-optimization/84178
3599         * tree-if-conv.c (combine_blocks): Move insert_gimplified_predicates
3600         to caller.
3601         (version_loop_for_if_conversion): Delay update_ssa call.
3602         (tree_if_conversion): Delay update_ssa until after predicate
3603         insertion.
3604
3605 2018-03-09  Eric Botcazou  <ebotcazou@adacore.com>
3606
3607         PR target/84763
3608         * config/i386/winnt.c (i386_pe_seh_cold_init): Use small pre-allocation
3609         when the function accesses prior frames.
3610
3611 2018-03-08  Jakub Jelinek  <jakub@redhat.com>
3612
3613         PR debug/84456
3614         * dwarf2out.c (dw_loc_list): If list && loc_list->first->next, call
3615         gen_llsym, otherwise call maybe_gen_llsym.
3616
3617         PR inline-asm/84742
3618         * recog.c (asm_operand_ok): Return 0 if multi-character constraint
3619         has ',' character inside of it.
3620
3621 2018-03-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
3622
3623         PR target/84748
3624         * config/aarch64/aarch64.md (*compare_cstore<mode>_insn): Mark pattern
3625         as clobbering CC_REGNUM.
3626
3627 2018-03-08  Richard Biener  <rguenther@suse.de>
3628
3629         PR middle-end/84552
3630         * tree-scalar-evolution.c: Include tree-into-ssa.h.
3631         (follow_copies_to_constant): Do not follow SSA names registered
3632         for update.
3633
3634 2018-03-08  Richard Biener  <rguenther@suse.de>
3635
3636         PR tree-optimization/84178
3637         * tree-if-conv.c (combine_blocks): Move insert_gimplified_predicates
3638         to caller.
3639         (version_loop_for_if_conversion): Delay update_ssa call.
3640         (tree_if_conversion): Delay update_ssa until after predicate
3641         insertion.
3642
3643 2018-03-08  David Malcolm  <dmalcolm@redhat.com>
3644
3645         PR tree-optimization/84178
3646         * tree-if-conv.c (release_bb_predicate): Remove the
3647         the assertion that the stmts have NULL use_ops.
3648         Discard the statements, asserting that they haven't
3649         yet been added to a BB.
3650
3651 2018-03-08  Richard Biener  <rguenther@suse.de>
3652
3653         PR tree-optimization/84746
3654         * tree-ssa-pre.c (find_leader_in_sets): Deal with SET1 being NULL.
3655         (phi_translate): Pass in destination ANTIC_OUT set.
3656         (phi_translate_1): Likewise.  For a simplified result lookup
3657         a leader in ANTIC_OUT and AVAIL_OUT, not the ANTIC_IN sets.
3658         (phi_translate_set): Adjust.
3659         (do_pre_regular_insertion): Likewise.
3660         (do_pre_partial_partial_insertion): Likewise.
3661
3662 2018-03-08  Martin Liska  <mliska@suse.cz>
3663
3664         PR gcov-profile/84735
3665         * doc/gcov.texi: Document usage of profile files.
3666         * gcov-io.h: Document changes in the format.
3667
3668 2018-03-08  Alexandre Oliva  <aoliva@redhat.com>
3669
3670         PR debug/84404
3671         PR debug/84408
3672         * dwarf2out.c (struct dw_line_info_table): Update comments for
3673         view == -1.
3674         (FORCE_RESET_NEXT_VIEW): New.
3675         (FORCE_RESETTING_VIEW_P): New.
3676         (RESETTING_VIEW_P): Check for -1 too.
3677         (ZERO_VIEW_P): Likewise.
3678         (new_line_info_table): Force-reset next view.
3679         (dwarf2out_begin_function): Likewise.
3680         (dwarf2out_source_line): Simplify zero_view_p initialization.
3681         Test FORCE_RESETTING_VIEW_P and RESETTING_VIEW_P instead of
3682         view directly.  Omit view when omitting .loc at line 0.
3683
3684 2018-03-08  Jakub Jelinek  <jakub@redhat.com>
3685
3686         PR tree-optimization/84740
3687         * tree-switch-conversion.c (process_switch): Call build_constructors
3688         only if info.phi_count is non-zero.
3689
3690         PR tree-optimization/84739
3691         * tree-tailcall.c (find_tail_calls): Check call arguments against
3692         DECL_ARGUMENTS (current_function_decl) rather than
3693         DECL_ARGUMENTS (func) when checking for tail recursion.
3694
3695 2018-03-07  Jakub Jelinek  <jakub@redhat.com>
3696
3697         * doc/contrib.texi: Add entries for Martin Liska, David Malcolm,
3698         Marek Polacek, extend Vladimir Makarov's, Jonathan Wakely's and
3699         Volker Reichelt's entry and add entries for people that perform
3700         GCC fuzzy testing and report numerous bugs.
3701
3702 2018-03-07  Segher Boessenkool  <segher@kernel.crashing.org>
3703
3704         PR target/82411
3705         * config/rs6000/rs6000.c (rs6000_elf_in_small_data_p): Don't put
3706         readonly data in sdata, if that is disabled.
3707         * config/rs6000/sysv4.opt (mreadonly-in-sdata): New option.
3708         * doc/invoke.texi (RS/6000 and PowerPC Options): Document
3709         -mreadonly-in-sdata option.
3710
3711 2018-03-07  Martin Sebor  <msebor@redhat.com>
3712
3713         PR tree-optimization/84468
3714         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Consider successor
3715         basic block when looking for nul assignment.
3716
3717 2018-03-07  Eric Botcazou  <ebotcazou@adacore.com>
3718
3719         PR target/84277
3720         * except.h (output_function_exception_table): Adjust prototype.
3721         * except.c (output_function_exception_table): Remove FNNAME parameter
3722         and add SECTION parameter.  Ouput one part of the table at a time.
3723         * final.c (final_scan_insn_1) <NOTE_INSN_SWITCH_TEXT_SECTIONS>: Output
3724         the first part of the exception table and emit unwind directives.
3725         * config/i386/i386-protos.h (i386_pe_end_cold_function): Declare.
3726         (i386_pe_seh_cold_init): Likewise.
3727         * config/i386/cygming.h (ASM_DECLARE_COLD_FUNCTION_NAME): New macro.
3728         (ASM_DECLARE_COLD_FUNCTION_SIZE): Likewise.
3729         * config/i386/i386.c (x86_expand_epilogue): Fix wording in comment.
3730         (ix86_output_call_insn): Emit a nop in one more case for SEH.
3731         * config/i386/winnt.c: Include except.h.
3732         (struct seh_frame_state): Add reg_offset, after_prologue and
3733         in_cold_section fields.
3734         (i386_pe_seh_end_prologue): Set seh->after_prologue.
3735         (i386_pe_seh_cold_init): New function.
3736         (i386_pe_seh_fini): Add COLD parameter and bail out if it is not equal
3737         to seh->in_cold_section.
3738         (seh_emit_push): Record the offset of the push.
3739         (seh_emit_save): Record the offet of the save.
3740         (i386_pe_seh_unwind_emit): Deal with NOTE_INSN_SWITCH_TEXT_SECTIONS.
3741         Test seh->after_prologue to disregard the epilogue.
3742         (i386_pe_end_function): Pass FALSE to i386_pe_seh_fini.
3743         (i386_pe_end_cold_function): New function.
3744
3745 2018-03-07  Jakub Jelinek  <jakub@redhat.com>
3746
3747         PR fortran/84565
3748         * config/aarch64/predicates.md (aarch64_simd_reg_or_zero): Use
3749         aarch64_simd_or_scalar_imm_zero rather than aarch64_simd_imm_zero.
3750
3751         PR c++/84704
3752         * gimple-expr.c (create_tmp_var_raw): Set DECL_NAMELESS flag
3753         on tmp_var.
3754         * tree-pretty-print.c (dump_decl_name): For TDF_COMPARE_DEBUG,
3755         don't print names of DECL_NAMELESS DECL_IGNORED_P decls.
3756
3757         PR middle-end/84723
3758         * multiple_target.c: Include tree-inline.h and intl.h.
3759         (expand_target_clones): Diagnose and fail if node->definition and
3760         !tree_versionable_function_p (node->decl).
3761
3762 2018-03-06  John David Anglin  <danglin@gcc.gnu.org>
3763
3764         * config/pa/pa.h (ASM_GENERATE_INTERNAL_LABEL): Revise to use
3765         sprint_ul.
3766         (ASM_OUTPUT_ADDR_VEC_ELT): Revise for above change.
3767         (ASM_OUTPUT_ADDR_DIFF_ELT): Likewise.
3768         * config/pa/pa64-hpux.h (ASM_GENERATE_INTERNAL_LABEL): Revise as above.
3769
3770 2018-03-06  Jakub Jelinek  <jakub@redhat.com>
3771
3772         PR target/84710
3773         * combine.c (try_combine): Use reg_or_subregno instead of handling
3774         just paradoxical SUBREGs and REGs.
3775
3776 2018-03-06  Claudiu Zissulescu  <claziss@synopsys.com>
3777
3778          * config/arc/arc.c (arc_finalize_pic): Remove function.
3779          (arc_must_save_register): We use single base PIC register, remove
3780          checks to save/restore the PIC register.
3781          (arc_expand_prologue): Likewise.
3782          * config/arc/arc-protos.h (arc_set_default_type_attributes):
3783          Remove.
3784          (arc_verify_short): Likewise.
3785          (arc_attr_type): Likewise.
3786          * config/arc/arc.c (arc_set_default_type_attributes): Remove.
3787          (walk_stores): Likewise.
3788          (arc_address_cost): Make it static.
3789          (arc_verify_short): Likewise.
3790          (branch_dest): Likewise.
3791          (arc_attr_type): Likewise.
3792          * config/arc/arc.c (TARGET_ADJUST_INSN_LENGTH): Remove.
3793          (TARGET_INSN_LENGTH_PARAMETERS): Likewise.
3794          (arc_final_prescan_insn): Remove inserting the nops due to
3795          hardware hazards.  It is done in reorg step.
3796          (insn_length_variant_t): Remove.
3797          (insn_length_parameters_t): Likewise.
3798          (arc_insn_length_parameters): Likewise.
3799          (arc_get_insn_variants): Likewise.
3800          * config/arc/arc.h (TARGET_UPSIZE_DBR): Remove.
3801
3802 2018-03-06  Jakub Jelinek  <jakub@redhat.com>
3803
3804         PR inline-asm/84683
3805         * reg-stack.c (move_for_stack_reg): If any_malformed_asm, avoid
3806         assertion failure.
3807
3808         PR tree-optimization/84687
3809         * omp-simd-clone.c (simd_clone_create): Clear DECL_BUILT_IN_CLASS
3810         on new_node->decl.
3811         * match.pd (pow(C,x)*expN(y) -> expN(logN(C)*x+y)): New optimization.
3812
3813 2018-03-05  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
3814
3815         * config/rs6000/rs6000-builtin.def (rs6000_speculation_barrier):
3816         Rename to ppc_speculation_barrier.
3817         * config/rs6000/rs6000.c (rs6000_init_builtins): Rename builtin to
3818         __builtin_ppc_speculation_barrier.
3819
3820 2018-03-05  Jakub Jelinek  <jakub@redhat.com>
3821
3822         PR target/84700
3823         * combine.c (combine_simplify_rtx): Don't try to simplify if
3824         if_then_else_cond returned non-NULL, but either true_rtx or false_rtx
3825         are equal to x.
3826
3827 2018-03-05  Segher Boessenkool  <segher@kernel.crashing.org>
3828
3829         * config/rs6000/rs6000.c (rs6000_loop_align): Don't align tiny loops
3830         to 32 bytes when compiling for POWER9.
3831
3832 2018-03-05  Jakub Jelinek  <jakub@redhat.com>
3833
3834         PR target/84564
3835         * config/i386/i386.c (ix86_function_ok_for_sibcall): Check for
3836         regparm >= 3 with no arg reg available also for calls with
3837         flag_force_indirect_call.  Pass decl to ix86_function_regparm.
3838
3839         PR target/84524
3840         * config/i386/sse.md (*<code><mode>3): Replace <mask_prefix3> with
3841         orig,vex.
3842         (*<plusminus_insn><mode>3): Likewise.  Remove <mask_operand3> uses.
3843
3844 2018-03-05  Peter Bergner  <bergner@vnet.ibm.com>
3845
3846         PR target/84264
3847         * config/rs6000/vector.md (mov<mode>): Disallow altivec memory operands.
3848
3849 2018-03-05  Richard Biener  <rguenther@suse.de>
3850
3851         PR tree-optimization/84486
3852         * tree-ssa-pre.c (create_expression_by_pieces): Remove dead code.
3853         When inserting a __builtin_assume_aligned call set the LHS
3854         SSA name alignment info accordingly.
3855
3856 2018-03-05  Wilco Dijkstra  <wdijkstr@arm.com>
3857
3858         PR tree-optimization/84114
3859         * config/aarch64/aarch64.c (aarch64_reassociation_width)
3860         Avoid reassociation of FLOAT_MODE addition.
3861
3862 2018-03-05  Olga Makhotina  <olga.makhotina@intel.com>
3863
3864         * common/config/i386/i386-common.c (OPTION_MASK_ISA_PCONFIG_SET,
3865         OPTION_MASK_ISA_PCONFIG_UNSET, OPTION_MASK_ISA_WBNOINVD_SET,
3866         OPTION_MASK_ISA_WBNOINVD_UNSET): New definitions.
3867         (ix86_handle_option): Handle -mpconfig and -mwbnoinvd.
3868         * config.gcc (pconfigintrin.h, wbnoinvdintrin.h) : Add headers.
3869         * config/i386/cpuid.h (bit_PCONFIG, bit_WBNOINVD): New.
3870         * config/i386/driver-i386.c (host_detect_local_cpu): Detect -mpconfig
3871         and -mwbnoinvd.
3872         * config/i386/i386-builtin.def (__builtin_ia32_wbnoinvd,
3873         __builtin_ia32_wbinvd): New builtins.
3874         (SPECIAL_ARGS2): New.
3875         * config/i386/i386-c.c (__WBNOINVD__, __PCONFIG__): New.
3876         (SPECIAL_ARGS2): New.
3877         * config/i386/i386.c (ix86_target_string): Add -mpconfig and -mwbnoinvd.
3878         (ix86_valid_target_attribute_inner_p): Ditto.
3879         (ix86_init_mmx_sse_builtins): Add special_args2.
3880         * config/i386/i386.h (TARGET_PCONFIG, TARGET_PCONFIG_P, TARGET_WBNOINVD,
3881         TARGET_WBNOINVD_P): New.
3882         * config/i386/i386.md (UNSPECV_WBINVD, UNSPECV_WBNOINVD): New.
3883         (define_insn "wbinvd", define_insn "wbnoinvd"): New.
3884         * config/i386/i386.opt: Add -mpconfig and -mwbnoinvd.
3885         * config/i386/immintrin.h (_wbinvd): New intrinsic.
3886         * config/i386/pconfigintrin.h: New file.
3887         * config/i386/wbnoinvdintrin.h: Ditto.
3888         * config/i386/x86intrin.h: Add headers pconfigintrin.h and wbnoinvdintrin.h.
3889         * doc/invoke.texi (-mpconfig, -mwbnoinvd): New.
3890
3891 2018-03-05  Richard Biener  <rguenther@suse.de>
3892
3893         PR tree-optimization/84670
3894         * tree-ssa-pre.c (struct bb_bitmap_sets): Add visited_with_visited_succs
3895         member.
3896         (BB_VISITED_WITH_VISITED_SUCCS): New define.
3897         (compute_antic): Initialize BB_VISITED_WITH_VISITED_SUCCS.
3898         (compute_antic_aux): Only assert the number of values in ANTIC_IN
3899         doesn't grow if all successors (recursively) were visited at least
3900         once.
3901
3902 2018-03-05  Richard Biener  <rguenther@suse.de>
3903
3904         PR tree-optimization/84650
3905         * tree-ssa-loop-im.c (pass_lim::execute): Reset the SCEV cache
3906         if executed in the loop pipeline.
3907
3908 2018-03-05  Sandra Loosemore  <sandra@codesourcery.com>
3909
3910         * doc/configfiles.texi (Configuration Files): Move info about
3911         conditionalizing $target-protos.h to...
3912         * doc/sourcebuild.texi (Back End): Here.  Explain how $target.h
3913         differs from $target-protos.h.
3914
3915 2018-03-05  Kito Cheng  <kito.cheng@gmail.com>
3916             Chung-Ju Wu  <jasonwucj@gmail.com>
3917
3918         * config/nds32/nds32-protos.h (nds32_expand_setmem): Declare.
3919         * config/nds32/nds32-multiple.md (setmemsi): Define.
3920         * config/nds32/nds32-memory-manipulation.c
3921         (nds32_gen_dup_4_byte_to_word_value): New.
3922         (emit_setmem_word_loop): New.
3923         (emit_setmem_byte_loop): New.
3924         (nds32_expand_setmem_loop): New.
3925         (nds32_expand_setmem_loop_v3m): New.
3926         (nds32_expand_setmem_unroll): New.
3927         (nds32_expand_setmem): New.
3928
3929 2018-03-04  Kito Cheng  <kito.cheng@gmail.com>
3930             Chung-Ju Wu  <jasonwucj@gmail.com>
3931
3932         * config/nds32/nds32-memory-manipulation.c
3933         (nds32_emit_load_store): New.
3934         (nds32_emit_post_inc_load_store): New.
3935         (nds32_emit_mem_move): New.
3936         (nds32_emit_mem_move_block): New.
3937         (nds32_expand_movmemsi_loop_unknown_size): New.
3938         (nds32_expand_movmemsi_loop_known_size): New.
3939         (nds32_expand_movmemsi_loop): New.
3940         (nds32_expand_movmemsi_unroll): New.
3941         (nds32_expand_movmemqi): Rename ...
3942         (nds32_expand_movmemsi): ... to this.
3943         * config/nds32/nds32-multiple.md (movmemqi): Rename ...
3944         (movmemsi): ... to this.
3945         * config/nds32/nds32-protos.h (nds32_expand_movmemqi): Rename ...
3946         (nds32_expand_movmemsi): ... to this.
3947
3948 2018-03-04  Kito Cheng  <kito.cheng@gmail.com>
3949             Monk Chiang  <sh.chiang04@gmail.com>
3950             Chung-Ju Wu  <jasonwucj@gmail.com>
3951
3952         * config/nds32/nds32-protos.h
3953         (nds32_expand_load_multiple): New arguments.
3954         (nds32_expand_store_multiple): Ditto.
3955         (nds32_valid_multiple_load_store): Rename ...
3956         (nds32_valid_multiple_load_store_p): ... to this.
3957         * config/nds32/nds32-memory-manipulation.c
3958         (nds32_expand_load_multiple): Refine implementation.
3959         (nds32_expand_store_multiple): Ditto.
3960         * config/nds32/nds32-multiple.md
3961         (load_multiple): Update nds32_expand_load_multiple interface.
3962         (store_multiple): Update nds32_expand_store_multiple interface.
3963         * config/nds32/nds32-predicates.c
3964         (nds32_valid_multiple_load_store): Rename ...
3965         (nds32_valid_multiple_load_store_p): ... to this and refine
3966         implementation.
3967         * config/nds32/predicates.md
3968         (nds32_load_multiple_and_update_address_operation): New predicate.
3969         (nds32_store_multiple_and_update_address_operation): New predicate.
3970
3971 2018-03-04  Kito Cheng  <kito.cheng@gmail.com>
3972             Chung-Ju Wu  <jasonwucj@gmail.com>
3973
3974         * config/nds32/nds32.md (type): Add load_multiple and store_multiple.
3975         (combo): New attribute.
3976         * config/nds32/nds32-multiple.md: Refine patterns with new attributes.
3977
3978 2018-03-03  Chung-Ju Wu  <jasonwucj@gmail.com>
3979
3980         * config/nds32/nds32.opt: Change -mcmodel= default value.
3981
3982 2018-03-03  Kito Cheng  <kito.cheng@gmail.com>
3983             Monk Chiang  <sh.chiang04@gmail.com>
3984             Chung-Ju Wu  <jasonwucj@gmail.com>
3985
3986         * config/nds32/constants.md (unspec_element): New enum.
3987         * config/nds32/constraints.md (Umw): New constraint.
3988         * config/nds32/nds32-intrinsic.c: Add more builtin functions.
3989         * config/nds32/nds32-intrinsic.md: Likewise.
3990         * config/nds32/nds32-md-auxiliary.c (nds32_regno_to_enable4): New.
3991         (nds32_valid_smw_lwm_base_p): New.
3992         (nds32_output_smw_single_word): New.
3993         (nds32_output_lmw_single_word): New.
3994         (nds32_expand_unaligned_load): New.
3995         (nds32_expand_unaligned_store): New.
3996         * config/nds32/nds32-protos.h (nds32_valid_smw_lwm_base_p): Declare.
3997         (nds32_output_smw_single_word): Declare.
3998         (nds32_output_lmw_single_word): Declare.
3999         (nds32_expand_unaligned_load): Declare.
4000         (nds32_expand_unaligned_store): Declare.
4001         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_UALOAD_HW,
4002         NDS32_BUILTIN_UALOAD_W, NDS32_BUILTIN_UALOAD_DW,
4003         NDS32_BUILTIN_UASTORE_HW, NDS32_BUILTIN_UASTORE_W,
4004         NDS32_BUILTIN_UASTORE_DW.
4005         * config/nds32/predicates.md (nds32_lmw_smw_base_operand): New
4006         predicate.
4007
4008 2018-03-03  Monk Chiang  <sh.chiang04@gmail.com>
4009             Kito Cheng  <kito.cheng@gmail.com>
4010             Chung-Ju Wu  <jasonwucj@gmail.com>
4011
4012         * config/nds32/nds32-intrinsic.c
4013         (nds32_expand_builtin_null_ftype_reg): Delete.
4014         (nds32_expand_builtin_reg_ftype_imm): Ditto.
4015         (nds32_expand_builtin_null_ftype_reg_imm): Ditto.
4016         (nds32_read_argument): New.
4017         (nds32_legitimize_target): Ditto.
4018         (nds32_legitimize_argument): Ditto.
4019         (nds32_check_constant_argument): Ditto.
4020         (nds32_expand_unop_builtin): Ditto.
4021         (nds32_expand_unopimm_builtin): Ditto.
4022         (nds32_expand_binop_builtin): Ditto.
4023         (nds32_builtin_decl_impl): Ditto.
4024         (builtin_description): Ditto.
4025         (nds32_expand_builtin_impl): Rewrite with new infrastructure.
4026         (nds32_init_builtins_impl): Ditto.
4027         * config/nds32/nds32.c (TARGET_BUILTIN_DECL): Define.
4028         (nds32_builtin_decl): New.
4029         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_COUNT.
4030         * config/nds32/nds32-protos.h (nds32_builtin_decl_impl): Declare.
4031
4032 2018-03-02  Jeff Law  <law@redhat.com>
4033
4034         * reorg.c (stop_search_p): Handle DEBUG_INSN.
4035         (redundant_insn, fill_simple_delay_slots): Likewise.
4036         (fill_slots_from_thread): Likewise.
4037         * resource.c (mark_referenced_resources): Likewise.
4038         (mark_set_resources, find_dead_or_set_registers): Likewise.
4039
4040 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
4041
4042         * substring-locations.h (format_warning_va): Formatting fix for
4043         ATTRIBUTE_GCC_DIAG.
4044         (format_warning_at_substring): Fix up ATTRIBUTE_GCC_DIAG second
4045         argument.
4046         (format_warning_n_va, format_warning_at_substring_n): New prototypes.
4047         * substring-locations.c: Include intl.h.
4048         (format_warning_va): Turned into small wrapper around
4049         format_warning_n_va, renamed to ...
4050         (format_warning_n_va): ... this, add N and PLURAL_GMSGID arguments,
4051         rename GMSGID to SINGULAR_GMSGID, if SINGULAR_GMSGID != PLURAL_GMSGID,
4052         use ngettext.
4053         (format_warning_at_substring_n): New function.
4054         * gimple-ssa-sprintf.c: Remove GCC diagnostic ignored pragma.
4055         (fmtwarn): Add ATTRIBUTE_GCC_DIAG.  Turn into a copy of
4056         format_warning_at_substring with just a shorter name instead of
4057         const function pointer.
4058         (fmtwarn_n): New function.
4059         (maybe_warn, format_directive, parse_directive): Use fmtwarn_n where
4060         appropriate, get rid of all the fmtstr temporaries, move conditionals
4061         with G_() wrapped string literals directly into fmtwarn arguments,
4062         cast dir.len to (int), formatting fixes.
4063
4064 2018-03-02  Thomas Schwinge  <thomas@codesourcery.com>
4065
4066         * doc/invoke.texi: Remove "Cilk Plus" references.
4067
4068 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
4069             Richard Biener  <rguenther@suse.de>
4070
4071         PR ipa/84628
4072         * expr.c (expand_expr_real_1) <case CALL_EXPR>: Don't emit diagnostics
4073         for error or warning attributes if CALL_FROM_THUNK_P is set.
4074         Formatting fixes.
4075
4076 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
4077
4078         PR target/56540
4079         * config/pa/pa.h (TARGET_CPU_CPP_BUILTINS): Predefine
4080         __SIZEOF_128__ macro if HPUX_LONG_DOUBLE_LIBRARY.
4081
4082         PR target/56540
4083         * config/ia64/ia64.h (TARGET_CPU_CPP_BUILTINS): Predefine
4084         __SIZEOF_{FPREG,FLOAT{80,128}}__ macros.
4085
4086         * predict.c (test_prediction_value_range): Use PROB_UNINITIALIZED
4087         instead of -1U in last predictors element's probability member.
4088
4089 2018-03-02  Eric Botcazou  <ebotcazou@adacore.com>
4090
4091         PR ipa/83983
4092         * ipa-devirt.c (odr_subtypes_equivalent_p): Get the ODR type of both
4093         arguments if they are comparable.
4094
4095 2018-03-02  Richard Sandiford  <richard.sandiford@linaro.org>
4096
4097         PR tree-optimization/84634
4098         * tree-vect-stmts.c (vectorizable_store, vectorizable_load): Replace
4099         masks and masked_loop_p with a single loop_masks, making sure it's
4100         null for bb vectorization.
4101
4102 2018-03-02  Richard Sandiford  <richard.sandiford@linaro.org>
4103
4104         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence)
4105         (vect_analyze_data_ref_access): Use loop->safe_len rather than
4106         loop->force_vectorize to check whether there is no alias.
4107
4108 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
4109
4110         PR target/84614
4111         * rtl.h (prev_real_nondebug_insn, next_real_nondebug_insn): New
4112         prototypes.
4113         * emit-rtl.c (next_real_insn, prev_real_insn): Fix up function
4114         comments.
4115         (next_real_nondebug_insn, prev_real_nondebug_insn): New functions.
4116         * cfgcleanup.c (try_head_merge_bb): Use prev_real_nondebug_insn
4117         instead of a loop around prev_real_insn.
4118         * combine.c (move_deaths): Use prev_real_nondebug_insn instead of
4119         prev_real_insn.
4120
4121         PR inline-asm/84625
4122         * config/i386/i386.c (ix86_print_operand): Use conditional
4123         output_operand_lossage instead of gcc_assert if CONST_VECTOR is not
4124         zero vector.
4125
4126 2018-03-02  Richard Biener  <rguenther@suse.de>
4127
4128         PR tree-optimization/84427
4129         * tree-ssa-pre.c (bitmap_remove_expr_from_set): Remove.
4130         (bitmap_set_subtract_values): Rewrite to handle multiple
4131         exprs per value.
4132         (clean): Likewise.
4133         (prune_clobbered_mems): Likewise.
4134         (phi_translate): Take edge instead of pred/phiblock.
4135         (phi_translate_1): Likewise.
4136         (phi_translate_set): Likewise.  Insert all translated
4137         exprs for a value into the set, keeping possibly multiple
4138         expressions per value.
4139         (compute_antic_aux): Adjust for phi_translate changes.
4140         When intersecting union the expressions and prune those
4141         not in the final value set, keeping possibly multiple
4142         expressions per value.  Do not use value-insertion
4143         for unioning ANTIC_OUT U EXP_GEN - TMP_GEN but merge
4144         all expressions.  Add verification that the value-sets
4145         only shrink during iteration.
4146         (compute_partial_antic_aux): Adjust for the phi_translate changes.
4147         (do_pre_regular_insertion): Likewise.
4148         (do_pre_partial_partial_insertion): Likewise.
4149
4150 2018-03-02  Richard Biener  <rguenther@suse.de>
4151
4152         PR target/82005
4153         * config/darwin.c (saved_debug_info_level): New static global.
4154         (darwin_asm_lto_start): Disable debug info generation for LTO out.
4155         (darwin_asm_lto_end): Restore debug info generation settings.
4156
4157 2018-03-01  Martin Liska  <mliska@suse.cz>
4158
4159         PR sanitizer/82484
4160         * sanopt.c (sanitize_rewrite_addressable_params): Do not handle
4161         volatile arguments.
4162
4163 2018-03-01  Richard Biener  <rguenther@suse.de>
4164
4165         PR debug/84645
4166         * dwarf2out.c (gen_variable_die): Properly handle late VLA
4167         type annotation with LTO when debug was disabled at compile-time.
4168
4169 2018-03-01  Matthew Fortune  <mfortune@gmail.com>
4170
4171         * config/mips/mips.c (mips_final_prescan_insn): Fix incorrect
4172         XINT with INTVAL.
4173         (mips_final_postscan_insn): Likewise.
4174
4175 2018-03-01  Richard Sandiford  <richard.sandiford@linaro.org>
4176
4177         PR rtl-optimization/84528
4178         * alias.c (init_alias_target): Add commentary.
4179         (init_alias_analysis): Only give HARD_FRAME_POINTER_REGNUM
4180         a unique base value if the frame pointer is not eliminated
4181         to the stack pointer.
4182
4183 2018-03-01  Tom de Vries  <tom@codesourcery.com>
4184
4185         PR rtl-optimization/83327
4186         * lra-int.h (hard_regs_spilled_into): Declare.
4187         * lra.c (hard_regs_spilled_into): Define.
4188         (init_reg_info): Init hard_regs_spilled_into.
4189         * lra-spills.c (assign_spill_hard_regs): Update hard_regs_spilled_into.
4190         * lra-lives.c (make_hard_regno_born, make_hard_regno_dead)
4191         (process_bb_lives): Handle hard_regs_spilled_into.
4192         (lra_create_live_ranges_1): Before doing liveness propagation, clear
4193         regs in all_hard_regs_bitmap if set in hard_regs_spilled_into.
4194
4195 2018-02-28  David Edelsohn  <dje.gcc@gmail.com>
4196
4197         * config.gcc (powerpc-ibm-aix7.1.*): New stanza.
4198         (powerpc-ibm-aix[789]*): Default to AIX 7.2.
4199         * config/rs6000/aix71.h (TARGET_DEFAULT): Revert to Power4 ISA.
4200         * config/rs6000/aix72.h: New file.
4201
4202 2018-02-28  Jakub Jelinek  <jakub@redhat.com>
4203
4204         * gimple-ssa-warn-restrict.c (maybe_diag_overlap): Use warning_n
4205         instead of warning_at with conditional singular and plural messages
4206         where possible.
4207
4208         PR target/52991
4209         * stor-layout.c (update_alignment_for_field): For
4210         targetm.ms_bitfield_layout_p (rli->t), if !is_bitfield
4211         && !DECL_PACKED (field), do the alignment update, just use
4212         only desired_align instead of MAX (type_align, desired_align)
4213         as the alignment.
4214         (place_field): Don't do known_align < desired_align handling
4215         early if targetm.ms_bitfield_layout_p (rli->t) and rli->prev_field
4216         is non-NULL, instead do it after rli->prev_field handling and
4217         only if not within a bitfield word.  For DECL_PACKED (field)
4218         use type_align of BITS_PER_UNIT.
4219
4220 2018-02-28  Eric Botcazou  <ebotcazou@adacore.com>
4221
4222         * config/aarch64/aarch64.c (aarch64_emit_probe_stack_range): Remove
4223         superfluous parentheses and trailing spaces.
4224
4225 2018-02-28  Richard Biener  <rguenther@suse.de>
4226
4227         PR tree-optimization/84584
4228         * graphite-scop-detection.c (scop_detection::add_scop): Discard
4229         SCoPs with fake exit edge.
4230
4231 2018-02-28  Martin Liska  <mliska@suse.cz>
4232
4233         PR testsuite/84597
4234         * timevar.c (timer::print): Fix format to properly print 100%
4235         values.
4236
4237 2018-02-28  Richard Biener  <rguenther@suse.de>
4238
4239         PR middle-end/84607
4240         * genmatch.c (capture_info::walk_match): Do not mark
4241         captured expressions without operands as expr_p given
4242         they act more like predicates and should be subject to
4243         "lost tail" side-effect preserving.
4244
4245 2018-02-28  Alexandre Oliva  <aoliva@redhat.com>
4246
4247         PR rtl-optimization/81611
4248         * auto-inc-dec.c (attempt_change): Move dead note from
4249         mem_insn if it's the next use of regno
4250         (find_address): Take address use of reg holding
4251         non-incremented value.  Add parm to limit search to the named
4252         reg only.
4253         (merge_in_block): Attempt to use a mem insn that is the next
4254         use of the original regno.
4255
4256 2018-02-27  Martin Sebor  <msebor@redhat.com>
4257
4258         PR c++/83871
4259         * gcc/doc/invoke.texi (-Wmissing-attributes): New option.
4260         * gcc/print-tree.c (print_node): Handle DECL_UNINLINABLE.
4261
4262 2018-02-27  Martin Sebor  <msebor@redhat.com>
4263
4264         PR translation/84207
4265         * diagnostic-core.h (warning_n, error_n, inform_n): Change
4266         n argument to unsigned HOST_WIDE_INT.
4267         * diagnostic.c (warning_n, error_n, inform_n): Ditto.
4268         (diagnostic_n_impl): Ditto.  Handle arguments in excess of LONG_MAX.
4269         * gimple-ssa-sprintf.c (format_directive): Simplify inform_n call.
4270         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Use warning_n.
4271
4272 2018-02-27  Richard Biener  <rguenther@suse.de>
4273
4274         PR tree-optimization/84512
4275         * tree-vect-loop.c (vect_compute_single_scalar_iteration_cost):
4276         Do not use the estimate returned from record_stmt_cost for
4277         the scalar iteration cost but sum properly using add_stmt_cost.
4278
4279 2018-02-27  Richard Biener  <rguenther@suse.de>
4280
4281         PR tree-optimization/84466
4282         * graphite-scop-detection.c (scop_detection::stmt_simple_for_scop_p):
4283         Adjust last change to less strictly validate use operands.
4284
4285 2018-02-27  Martin Liska  <mliska@suse.cz>
4286
4287         PR gcov-profile/84548
4288         * gcov.c (process_file): Allow partial overlap and consider it
4289         also as group functions.
4290         (output_lines): Properly calculate range of lines for a group.
4291
4292 2018-02-27  Martin Liska  <mliska@suse.cz>
4293
4294         * timevar.c (timer::print_row): Remove 'usr', 'sys', 'wall' and
4295         'ggc' suffixes.  Change first column width.
4296         (timer::print): Fix formatting of the column.
4297
4298 2018-02-27  Alexandre Oliva  <aoliva@redhat.com>
4299
4300         * tree-ssa-live.c (remove_unused_scope_block_p): Do not
4301         preserve inline entry blocks for the sake of debug inline
4302         entry point markers alone.
4303         (remove_unused_locals): Suggest in comments a better place to
4304         force the preservation of inline entry blocks that are
4305         otherwise unused, but do not preserve them.
4306
4307 2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
4308
4309         * config/i386/i386.c (ix86_output_indirect_jmp): Update comments.
4310
4311 2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
4312
4313         PR target/84039
4314         * config/i386/constraints.md (Bs): Replace
4315         ix86_indirect_branch_register with
4316         TARGET_INDIRECT_BRANCH_REGISTER.
4317         (Bw): Likewise.
4318         * config/i386/i386.md (indirect_jump): Likewise.
4319         (tablejump): Likewise.
4320         (*sibcall_memory): Likewise.
4321         (*sibcall_value_memory): Likewise.
4322         Peepholes of indirect call and jump via memory: Likewise.
4323         (*sibcall_GOT_32): Disallowed for TARGET_INDIRECT_BRANCH_REGISTER.
4324         (*sibcall_value_GOT_32): Likewise.
4325         * config/i386/predicates.md (indirect_branch_operand): Likewise.
4326         (GOT_memory_operand): Likewise.
4327         (call_insn_operand): Likewise.
4328         (sibcall_insn_operand): Likewise.
4329         (GOT32_symbol_operand): Likewise.
4330         * config/i386/i386.h (TARGET_INDIRECT_BRANCH_REGISTER): New.
4331
4332 2018-02-26  Eric Botcazou  <ebotcazou@adacore.com>
4333
4334         PR rtl-optimization/83496
4335         * reorg.c (steal_delay_list_from_target): Change REDUNDANT array from
4336         booleans to RTXes.  Call fix_reg_dead_note on every non-null element.
4337         (steal_delay_list_from_fallthrough): Call fix_reg_dead_note on a
4338         redundant insn, if any.
4339         (relax_delay_slots): Likewise.
4340         (update_reg_unused_notes): Rename REDUNDANT_INSN to OTHER_INSN.
4341
4342 2018-02-26  Richard Sandiford  <richard.sandiford@linaro.org>
4343
4344         PR tree-optimization/83965
4345         * tree-vect-patterns.c (vect_reassociating_reduction_p): Assume
4346         that grouped statements are part of a reduction chain.  Return
4347         true if the statement is not marked as a reduction itself but
4348         is part of a group.
4349         (vect_recog_dot_prod_pattern): Don't check whether the statement
4350         is part of a group here.
4351         (vect_recog_sad_pattern): Likewise.
4352         (vect_recog_widen_sum_pattern): Likewise.
4353
4354 2018-02-26  Eric Botcazou  <ebotcazou@adacore.com>
4355
4356         PR debug/84545
4357         * final.c (rest_of_clean_state): Also look for calls inside sequences.
4358
4359 2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
4360
4361         PR target/84530
4362         * config/i386/i386-protos.h (ix86_output_indirect_jmp): Remove
4363         the bool argument.
4364         (ix86_output_indirect_function_return): New prototype.
4365         (ix86_split_simple_return_pop_internal): Likewise.
4366         * config/i386/i386.c (indirect_return_via_cx): New.
4367         (indirect_return_via_cx_bnd): Likewise.
4368         (indirect_thunk_name): Handle return va CX_REG.
4369         (output_indirect_thunk_function): Create alias for
4370         __x86_return_thunk_[re]cx and __x86_return_thunk_[re]cx_bnd.
4371         (ix86_output_indirect_jmp): Remove the bool argument.
4372         (ix86_output_indirect_function_return): New function.
4373         (ix86_split_simple_return_pop_internal): Likewise.
4374         * config/i386/i386.md (*indirect_jump): Don't pass false
4375         to ix86_output_indirect_jmp.
4376         (*tablejump_1): Likewise.
4377         (simple_return_pop_internal): Change it to define_insn_and_split.
4378         Call ix86_split_simple_return_pop_internal to split it for
4379         -mfunction-return=.
4380         (simple_return_indirect_internal): Call
4381         ix86_output_indirect_function_return instead of
4382         ix86_output_indirect_jmp.
4383
4384 2018-02-26  Jakub Jelinek  <jakub@redhat.com>
4385
4386         PR bootstrap/84405
4387         * vec.h (vec_default_construct): For BROKEN_VALUE_INITIALIZATION use
4388         memset and value initialization afterwards.
4389
4390 2018-02-26  Christophe Lyon  <christophe.lyon@linaro.org>
4391
4392         * Makefile.in (lto-wrapper): Use ALL_LINKERFLAGS.
4393
4394 2018-02-26  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
4395
4396         PR target/84521
4397         * common/config/aarch64/aarch64-common.c
4398         (aarch_option_optimization_table[]): Switch
4399         off fomit-frame-pointer
4400
4401 2018-02-26  Kito Cheng  <kito.cheng@gmail.com>
4402             Chung-Ju Wu  <jasonwucj@gmail.com>
4403
4404         * config/nds32/nds32-multiple.md (load_multiple): Disallow
4405         volatile memory.
4406         (store_multiple): Ditto.
4407
4408 2018-02-26  Kito Cheng  <kito.cheng@gmail.com>
4409
4410         * config.gcc: Add --with-cpu support for nds32 target.
4411         * config/nds32/nds32-opts.h (nds32_cpu_type): New.
4412         * config/nds32/nds32.opt: Add -mcpu= option.
4413
4414 2018-02-25  Segher Boessenkool  <segher@kernel.crashing.org>
4415
4416         * config/rs6000/rs6000.opt (mvrsave=no, mvrsave=yes, isel=no,
4417         isel=yes): Warn for these deprecated options.
4418
4419 2018-02-23  David Edelsohn  <dje.gcc@gmail.com>
4420
4421         * config/rs6000/aix71.h (TARGET_DEFAULT): Change to
4422         ISA_2_5_MASKS_EMBEDDED.
4423
4424 2018-02-23  Jakub Jelinek  <jakub@redhat.com>
4425
4426         * ipa-prop.c (ipa_vr_ggc_hash_traits::hash): Hash p->min and
4427         p->max as pointers rather than using iterative_hash_expr.
4428
4429 2018-02-23  Carl Love  <cel@us.ibm.com>
4430
4431         * config/rs6000/rs6000-builtin.def: Change VSIGNED2 and VUNSIGNED2
4432         macro expansions from BU_VSX_2 to BU_P8V_VSX_2 and BU_VSX_OVERLOAD_2 to
4433         BU_P8V_OVERLOAD_2.
4434         * config/rs6000/rs6000-c.c: Change VSX_BUILTIN_VEC_VSIGNED2 to
4435         P8V_BUILTIN_VEC_VSIGNED2.  Change VSX_BUILTIN_VEC_VUNSIGNED2 to
4436         P8V_BUILTIN_VEC_VUNSIGNED2.
4437
4438 2018-02-22  Vladimir Makarov  <vmakarov@redhat.com>
4439
4440         PR target/81572
4441         * lra-int.h (LRA_UNKNOWN_ALT, LRA_NON_CLOBBERED_ALT): New macros.
4442         * lra.c (lra_set_insn_recog_data, lra_update_insn_recog_data): Use
4443         LRA_UNKNOWN_ALT.
4444         * lra-constraints.c (curr_insn_transform): Set up
4445         LRA_NON_CLOBBERED_ALT for moves processed on the fast path.  Use
4446         LRA_UNKNOWN_ALT.
4447         (remove_inheritance_pseudos): Use LRA_UNKNOWN_ALT.
4448         * lra-eliminations.c (spill_pseudos): Ditto.
4449         (process_insn_for_elimination): Ditto.
4450         * lra-lives.c (reg_early_clobber_p): Use the new macros.
4451         * lra-spills.c (spill_pseudos): Use LRA_UNKNOWN_ALT and
4452         LRA_NON_CLOBBERED_ALT.
4453
4454 2018-02-22  Martin Sebor  <msebor@redhat.com>
4455
4456         PR tree-optimization/84480
4457         * gimple-fold.c (gimple_fold_builtin_strcpy): Move warnings
4458         to maybe_diag_stxncpy_trunc.  Call it.
4459         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Integrate warnings
4460         from gimple_fold_builtin_strcpy.  Print inlining stack.
4461         (handle_builtin_stxncpy): Print inlining stack.
4462         * tree-ssa-strlen.h (maybe_diag_stxncpy_trunc): Declare.
4463
4464 2018-02-22  H.J. Lu  <hongjiu.lu@intel.com>
4465
4466         PR target/84176
4467         * config/i386/i386.c (ix86_set_indirect_branch_type): Issue an
4468         error when -mindirect-branch=thunk-extern, -fcf-protection=branch
4469         and -fcheck-pointer-bounds are used together.
4470         (indirect_thunk_prefix): New enum.
4471         (indirect_thunk_need_prefix): New function.
4472         (indirect_thunk_name): Replace need_bnd_p with need_prefix.  Use
4473         "_nt" instead of "_bnd" for NOTRACK prefix.
4474         (output_indirect_thunk): Replace need_bnd_p with need_prefix.
4475         (output_indirect_thunk_function): Likewise.
4476         (): Likewise.
4477         (ix86_code_end): Update output_indirect_thunk_function calls.
4478         (ix86_output_indirect_branch_via_reg): Replace
4479         ix86_bnd_prefixed_insn_p with indirect_thunk_need_prefix.
4480         (ix86_output_indirect_branch_via_push): Likewise.
4481         (ix86_output_function_return): Likewise.
4482         * doc/invoke.texi: Document -mindirect-branch=thunk-extern is
4483         incompatible with -fcf-protection=branch and
4484         -fcheck-pointer-bounds.
4485
4486 2018-02-22  Steve Ellcey  <sellcey@cavium.com>
4487
4488         PR target/83335
4489         * config/aarch64/aarch64.c (aarch64_print_address_internal):
4490         Change gcc_assert call to output_operand_lossage.
4491
4492 2018-02-22  Steve Ellcey  <sellcey@cavium.com>
4493
4494         * doc/extend.texi (__builtin_extend_pointer): Document builtin.
4495
4496 2018-02-22  DJ Delorie  <dj@redhat.com>
4497             Sebastian Perta  <sebastian.perta@renesas.com>
4498             Oleg Endo  <olegendo@gcc.gnu.org>
4499
4500         * config/rx/rx.c (rx_rtx_costs): New function.
4501         (TARGET_RTX_COSTS): Override to use rx_rtx_costs.
4502
4503 2018-02-22  Thomas Preud'homme  <thomas.preudhomme@arm.com>
4504
4505         * config/arm/t-multilib: Map Armv8-R to Armv7 multilibs.
4506
4507 2018-02-22  Martin Liska  <mliska@suse.cz>
4508
4509         PR driver/83193
4510         * common/config/arm/arm-common.c (arm_print_hint_for_cpu_option):
4511         Add "native" as a possible value.
4512
4513 2018-02-22  Martin Liska  <mliska@suse.cz>
4514
4515         PR driver/83193
4516         * config/i386/i386.c (ix86_option_override_internal):
4517         Add "native" as a possible value for -march and -mtune.
4518
4519 2018-02-22  Jakub Jelinek  <jakub@redhat.com>
4520
4521         PR target/84502
4522         * stor-layout.c (finalize_type_size): Propagate TYPE_EMPTY_P flag
4523         to all type variants.
4524
4525         PR tree-optimization/84503
4526         * gimple-ssa-store-merging.c (merged_store_group::merge_into): Compute
4527         width as info->bitpos + info->bitsize - start.
4528         (merged_store_group::merge_overlapping): Simplify width computation.
4529         (check_no_overlap): New function.
4530         (imm_store_chain_info::try_coalesce_bswap): Compute expected
4531         start + width and last_order of the group, fail if check_no_overlap
4532         fails.
4533         (imm_store_chain_info::coalesce_immediate_stores): Don't merge info
4534         to group if check_no_overlap fails.
4535
4536 2018-02-21  Segher Boessenkool  <segher@kernel.crashing.org>
4537
4538         * config/rs6000/altivec.md: Delete contraint arguments to
4539         define_expand, define_split, and define_peephole2, and in
4540         define_insn_and_split if always unused.
4541         * config/rs6000/darwin.md: Ditto.
4542         * config/rs6000/dfp.md: Ditto.
4543         * config/rs6000/rs6000.md: Ditto.
4544         * config/rs6000/sync.md: Ditto.
4545         * config/rs6000/vector.md: Ditto.
4546         * config/rs6000/vsx.md: Ditto.
4547
4548 2018-02-21  Segher Boessenkool  <segher@kernel.crashing.org>
4549
4550         * config/rs6000/altivec.md: Write output control strings as braced
4551         blocks instead of double-quoted strings.
4552         * config/rs6000/darwin.md: Ditto.
4553         * config/rs6000/rs6000.md: Ditto.
4554         * config/rs6000/vector.md: Ditto.
4555         * config/rs6000/vsx.md: Ditto.
4556
4557 2018-02-21  Jason Merrill  <jason@redhat.com>
4558
4559         PR c++/84314 - ICE with templates and fastcall attribute.
4560         * attribs.c (build_type_attribute_qual_variant): Remove assert.
4561
4562 2018-02-21  Jan Hubicka  <hubicka@ucw.cz>
4563
4564         * ipa-cp.c (determine_versionability): Fix comment typos.
4565
4566 2018-02-21  Jan Hubicka  <hubicka@ucw.cz>
4567
4568         PR c/84229
4569         * ipa-cp.c (determine_versionability): Do not version functions caling
4570         va_arg_pack.
4571
4572 2018-02-21  Martin Liska  <mliska@suse.cz>
4573
4574         PR driver/83193
4575         * config/aarch64/aarch64.c (aarch64_print_hint_for_core_or_arch):
4576         Add "native" as a possible value.
4577         * config/aarch64/aarch64.h (HAVE_LOCAL_CPU_DETECT):  Define
4578         the macro when native cpu detection is available.
4579
4580 2018-02-21  Martin Liska  <mliska@suse.cz>
4581
4582         PR driver/83193
4583         * common/config/arm/arm-common.c (arm_print_hint_for_arch_option):
4584         Add "native" as a possible value.
4585         * config/arm/arm.h (HAVE_LOCAL_CPU_DETECT): Define the macro
4586         when native cpu detection is available.
4587
4588 2018-02-21  Jakub Jelinek  <jakub@redhat.com>
4589             Martin Sebor  <msebor@redhat.com>
4590
4591         PR tree-optimization/84478
4592         * gimple-fold.h (get_range_strlen): Add a bool argument defaulted to
4593         false.
4594         * gimple-fold.c (get_range_strlen): Make minlen const and assume it
4595         can't be NULL.  Change FUZZY from bool to int, for 1 add PHI/COND_EXPR
4596         support which is conservatively correct, for 2 only stay conservative
4597         for maxlen.  Formatting and comment capitalization fixes.  Add STRICT
4598         argument to the 2 argument get_range_strlen, adjust 6 arg
4599         get_range_strlen caller and clear minmaxlen[0] and [1] if it returned
4600         false.
4601         (get_maxval_strlen): Adjust 6 arg get_range_strlen caller.
4602         (gimple_fold_builtin_strlen): Pass true as last argument to
4603         get_range_strlen.
4604
4605 2018-02-20  Martin Sebor  <msebor@redhat.com>
4606
4607         PR middle-end/84095
4608         * gimple-ssa-warn-restrict.c (builtin_memref::extend_offset_range): New.
4609         (builtin_memref::set_base_and_offset): Same.  Handle inner references.
4610         (builtin_memref::builtin_memref): Factor out parts into
4611         set_base_and_offset and call it.
4612
4613 2018-02-20  Richard Sandiford  <richard.sandiford@linaro.org>
4614
4615         PR middle-end/84406
4616         * optabs-query.c (find_widening_optab_handler_and_mode): If from_mode
4617         is a scalar_int_mode, assert that to_mode is a scalar_int_mode with
4618         greater precision.  If to_mode is a MODE_PARTIAL_INT, stop the
4619         search at the associated MODE_INT.
4620
4621 2018-02-20  Jeff Law  <law@redhat.com>
4622
4623         PR middle-end/82123
4624         PR tree-optimization/81592
4625         PR middle-end/79257
4626         * gimple-ssa-sprintf.c (format_integer): Query EVRP range analyzer
4627         for range data rather than using global data.
4628         * gimple-ssa-sprintf.c (get_int_range): Query EVRP range analyzer for
4629         range data rather than using global data.
4630         * gimple-ssa-sprintf.c (get_int_range): Accept vr_values parameter
4631         pass it to children as needed.
4632         (struct directive::fmtresult): Similarly.
4633         (struct directive::set_width): Similarly.
4634         (struct directive::set_precision): Similarly.
4635         (format_integer, format_directive, parse_directive): Similarly.
4636         (format_none): Accept unnamed vr_values parameter.
4637         (format_percent, format_floating, format_character): Similarly.
4638         (format_string, format_plain): Similarly.
4639         * gimple-ssa-sprintf.c (sprintf_dom_walker::handle_gimple_call): Query
4640         the EVRP range analyzer for range data rather than using global data.
4641         * gimple-ssa-sprintf.c: Include alloc-pool.h, vr-values.h and
4642         gimple-ssa-evrp-analyze.h
4643         (class sprintf_dom_walker): Add after_dom_children member function.
4644         Add evrp_range_analyzer member.
4645         (sprintf_dom_walker::before_dom_children): Call into the EVRP
4646         range analyzer as needed.
4647         (sprintf_dom_walker::after_dom_children): New member function.
4648         * gimple-ssa-evrp-analyze.c (evrp_range_analyzer::enter): Do nothing
4649         if not optimizing.
4650         (evrp_range_analyzer::record_ranges_from_stmt): Likewise.
4651         (evrp_range_analyzer::pop_to_marker): Likewise.
4652
4653 2018-02-20  Richard Sandiford  <richard.sandiford@linaro.org>
4654
4655         PR tree-optimization/84419
4656         * internal-fn.c (expand_call_mem_ref): Create a TARGET_MEM_REF
4657         with the required type if its current type is compatible but
4658         different.
4659
4660 2018-02-20  Jakub Jelinek  <jakub@redhat.com>
4661
4662         PR middle-end/82004
4663         * match.pd (pow(C,x) -> exp(log(C)*x)): Delay all folding until
4664         after vectorization.
4665
4666 2018-02-20  Martin Liska  <mliska@suse.cz>
4667
4668         PR driver/83193
4669         * config/aarch64/aarch64.c (aarch64_print_hint_for_core_or_arch): Print
4670         possible values if we don't have a hint.
4671
4672 2018-02-20  Martin Liska  <mliska@suse.cz>
4673
4674         PR c/84310
4675         PR target/79747
4676         * final.c (shorten_branches): Build align_tab array with one
4677         more element.
4678         * opts.c (finish_options): Add alignment option limit check.
4679         (MAX_CODE_ALIGN): Likewise.
4680         (MAX_CODE_ALIGN_VALUE): Likewise.
4681         * doc/invoke.texi: Document maximum allowed option value for
4682         all -falign-* options.
4683
4684 2018-02-19  Jakub Jelinek  <jakub@redhat.com>
4685
4686         PR target/84146
4687         * reg-notes.def (REG_CALL_ARG_LOCATION): New reg note.
4688         * insn-notes.def (NOTE_INSN_CALL_ARG_LOCATION): Remove.
4689         * var-tracking.c (emit_note_insn_var_location): Remove all references
4690         to NOTE_INSN_CALL_ARG_LOCATION.
4691         (emit_notes_in_bb): Emit arguments as REG_CALL_ARG_LOCATION note on
4692         the CALL_INSN rather than separate NOTE_INSN_CALL_ARG_LOCATION note.
4693         Use copy_rtx_if_shared.
4694         * dwarf2out.c (gen_subprogram_die): Use XEXP with 0 instead of
4695         NOTE_VAR_LOCATION on ca_loc->call_arg_loc_note.
4696         (dwarf2out_var_location): Remove handling of
4697         NOTE_INSN_CALL_ARG_LOCATION, instead handle REG_CALL_ARG_LOCATION note
4698         on call_insn.
4699         * final.c (final_scan_insn): Remove all references to
4700         NOTE_INSN_CALL_ARG_LOCATION.
4701         (rest_of_clean_state): Likewise.  Remove REG_CALL_ARG_LOCATION notes
4702         before dumping final insns.
4703         * except.c (emit_note_eh_region_end): Remove all references to
4704         NOTE_INSN_CALL_ARG_LOCATION.
4705         * config/alpha/alpha.c (alpha_pad_function_end): Likewise.
4706         * config/c6x/c6x.c (c6x_gen_bundles): Likewise.
4707         * config/arc/arc.c (hwloop_optimize): Likewise.
4708         * config/arm/arm.c (create_fix_barrier): Likewise.
4709         * config/s390/s390.c (s390_chunkify_start): Likewise.
4710         * config/sh/sh.c (find_barrier): Likewise.
4711         * config/i386/i386.c (rest_of_insert_endbranch,
4712         ix86_seh_fixup_eh_fallthru): Likewise.
4713         * config/xtensa/xtensa.c (hwloop_optimize): Likewise.
4714         * config/iq2000/iq2000.c (final_prescan_insn): Likewise.
4715         * config/frv/frv.c (frv_function_prologue): Likewise.
4716         * emit-rtl.c (try_split): Likewise.  Copy over REG_CALL_ARG_LOCATION
4717         reg note.
4718         (note_outside_basic_block_p): Remove all references to
4719         NOTE_INSN_CALL_ARG_LOCATION.
4720         * gengtype.c (adjust_field_rtx_def): Likewise.
4721         * print-rtl.c (rtx_writer::print_rtx_operand_code_0, print_insn):
4722         Likewise.
4723         * jump.c (cleanup_barriers, delete_related_insns): Likewise.
4724         * cfgrtl.c (force_nonfallthru_and_redirect): Likewise.
4725
4726         PR c++/84444
4727         * builtins.c (builtin_mathfn_code): Don't check if CALL_EXPR_FN (t)
4728         is ADDR_EXPR.
4729
4730         PR tree-optimization/84452
4731         * tree-vect-patterns.c (vect_recog_pow_pattern): Don't call
4732         expand_simd_clones if targetm.simd_clone.compute_vecsize_and_simdlen
4733         is NULL.
4734
4735 2018-02-19  Martin Liska  <mliska@suse.cz>
4736
4737         PR sanitizer/82183
4738         * passes.def: Put pass_sancov_O0 before pass_lower_switch with -O0.
4739
4740 2018-02-19  Martin Liska  <mliska@suse.cz>
4741             Richard Sandiford  <richard.sandiford@linaro.org>
4742
4743         PR tree-optimization/82491
4744         * gimple-fold.c (get_base_constructor): Make earlier bail out
4745         to prevent ubsan.
4746
4747 2018-02-19  Carl Love  <cel@us.ibm.com>
4748
4749         * config/rs6000/rs6000-builtin.def: Change NEG macro expansions from
4750         BU_ALTIVEC_A to BU_P8V_AV_1 and BU_ALTIVEC_OVERLOAD_1 to
4751         BU_P8V_OVERLOAD_1.
4752         * config/rs6000/rs6000-c.c: Change ALTIVEC_BUILTIN_VEC_NEG to
4753         P8V_BUILTIN_VEC_NEG.
4754
4755 2018-02-19  Sebastian Perta  <sebastian.perta@renesas.com>
4756
4757         * config/rl78/rl78.md (movdf): New define expand.
4758
4759 2018-02-19  Martin Liska  <mliska@suse.cz>
4760
4761         PR other/80589
4762         * doc/invoke.texi: Fix typo.
4763         * params.def (PARAM_MAX_LOOP_HEADER_INSNS): Likewise.
4764
4765 2018-02-18  Segher Boessenkool  <segher@kernel.crashing.org>
4766
4767         * config/rs6000/rs6000.c (rs6000_option_override_internal): Don't
4768         handle rs6000_single_float and rs6000_double_float specially for
4769         e500 family CPUs.
4770
4771 2018-02-16  Jeff Law  <law@redhat.com>
4772
4773         * config/rx/rx.c (add_pop_cfi_notes): New function.;
4774         (pop_regs): Use it.
4775
4776 2018-02-16  Jakub Jelinek  <jakub@redhat.com>
4777
4778         PR ipa/84425
4779         * ipa-inline.c (inline_small_functions): Fix a typo.
4780
4781 2018-02-16  Nathan Sidwell  <nathan@acm.org>
4782
4783         * doc/extend.texi (Backwards Compatibility): Americanize 'behaviour'.
4784
4785 2018-02-16  Carl Love  <cel@us.ibm.com>
4786
4787         * config/rs6000/rs6000-builtin.def: Add BU_P8V_VSX_2 macro definition.
4788         Change FLOAT2 expansions from BU_VSX_2 to BU_P8V_VSX_2 and
4789         from BU_VSX_OVERLOAD_2 to BU_P8V_OVERLOAD_2.
4790         * config/rs6000/rs6000-c.c: Changed macro VSX_BUILTIN_VEC_FLOAT2
4791         expansion to P8V_BUILTIN_VEC_FLOAT2.
4792
4793 2018-02-16  Vladimir Makarov  <vmakarov@redhat.com>
4794
4795         PR rtl-optimization/70023
4796         * lra-constraints.c (inherit_in_ebb): Take hard reg mode of
4797         src_regno into account.
4798
4799 2018-02-16  Carl Love  <cel@us.ibm.com>
4800
4801         * config/rs6000/altivec.h: Remove vec_vextract4b and vec_vinsert4b.
4802         * config/rs6000/rs6000-builtin.def: Remove macro expansion for
4803         VEXTRACT4B, VINSERT4B, VINSERT4B_DI and VEXTRACT4B.
4804         * config/rs6000/rs6000.c: Remove case statements for
4805         P9V_BUILTIN_VEXTRACT4B, P9V_BUILTIN_VEC_VEXTRACT4B,
4806         P9V_BUILTIN_VINSERT4B, P9V_BUILTIN_VINSERT4B_DI,
4807         and P9V_BUILTIN_VEC_VINSERT4B.
4808         * config/rs6000/rs6000-c.c (altivec_expand_builtin): Remove entries for
4809         P9V_BUILTIN_VEC_VEXTRACT4B and P9V_BUILTIN_VEC_VINSERT4B.
4810         * config/rs6000/vsx.md:
4811         * doc/extend.texi: Remove vec_vextract4b, non ABI definitions for
4812         vec_insert4b.
4813
4814 2018-02-16  Carl Love  <cel@us.ibm.com>
4815
4816         * config/rs6000/altivec.h: Add builtin names vec_extract4b
4817         vec_insert4b.
4818         * config/rs6000/rs6000-builtin.def: Add INSERT4B and EXTRACT4B
4819         definitions.
4820         * config/rs6000/rs6000-c.c: Add the definitions for
4821         P9V_BUILTIN_VEC_EXTRACT4B and P9V_BUILTIN_VEC_INSERT4B.
4822         * config/rs6000/rs6000.c (altivec_expand_builtin): Add
4823         P9V_BUILTIN_EXTRACT4B and P9V_BUILTIN_INSERT4B case statements.
4824         * config/rs6000/vsx.md: Add define_insn extract4b.  Add define_expand
4825         definition for insert4b and define insn *insert3b_internal.
4826         * doc/extend.texi: Add documentation for vec_extract4b.
4827
4828 2018-02-16  Nathan Sidwell  <nathan@acm.org>
4829
4830         * doc/extend.texi (Backwards Compatibility): Mention friend
4831         injection.  Note for-scope is deprecated.
4832         * doc/invoke.texi (-ffriend-injection): Deprecate.
4833
4834 2018-02-16  Segher Boessenkool  <segher@kernel.crashing.org>
4835
4836         * combine.c (try_combine): When adjusting LOG_LINKS for the destination
4837         that moved to I2, also allow destinations that are a paradoxical
4838         subreg (instead of a normal reg).
4839
4840 2018-02-16  Oleg Endo  <olegendo@gcc.gnu.org>
4841
4842         PR target/83831
4843         * config/rx/rx.c (rx_fuse_in_memory_bitop): Convert shift operand
4844         to QImode.
4845
4846 2018-02-16  Richard Biener  <rguenther@suse.de>
4847
4848         PR tree-optimization/84037
4849         PR tree-optimization/84016
4850         PR target/82862
4851         * config/i386/i386.c (ix86_builtin_vectorization_cost):
4852         Adjust vec_construct for the fact we need additional higher latency
4853         128bit inserts for AVX256 and AVX512 vector builds.
4854         (ix86_add_stmt_cost): Scale vector construction cost for
4855         elementwise loads.
4856
4857 2018-02-16  Richard Biener  <rguenther@suse.de>
4858
4859         PR tree-optimization/84417
4860         * tree-ssa.c (non_rewritable_mem_ref_base): Properly constrain
4861         the MEM_REF offset when conversion to BIT_FIELD_REF is desired.
4862         (non_rewritable_lvalue_p): Likewise, use poly-ints.
4863
4864 2018-02-16  Martin Liska  <mliska@suse.cz>
4865
4866         PR sanitizer/84307
4867         * internal-fn.def (ASAN_CHECK): Set proper flags.
4868         (ASAN_MARK): Likewise.
4869
4870 2018-02-16  Julia Koval  <julia.koval@intel.com>
4871
4872         * config/i386/i386.c (ix86_option_override_internal): Remove PTA_CLWB
4873         from PTA_CANNONLAKE.
4874
4875 2018-02-16  Jakub Jelinek  <jakub@redhat.com>
4876
4877         PR target/84272
4878         * config/aarch64/cortex-a57-fma-steering.c (fma_forest::merge_forest):
4879         Use ++iter rather than iter++ for std::list iterators.
4880         (func_fma_steering::dfs): Likewise.  Don't delete nodes right away,
4881         defer deleting them until all nodes in the forest are processed.  Do
4882         free even leaf nodes.  Change to_process into auto_vec.
4883
4884         PR bootstrap/84405
4885         * system.h (BROKEN_VALUE_INITIALIZATION): Define for GCC < 4.3.
4886         * vec.h (vec_default_construct): Use memset instead of placement new
4887         if BROKEN_VALUE_INITIALIZATION is defined.
4888         * hash-table.h (hash_table<Descriptor, Allocator>::empty_slow): Use
4889         memset instead of value initialization if BROKEN_VALUE_INITIALIZATION
4890         is defined.
4891
4892         PR rtl-optimization/83723
4893         * lra-int.h (lra_substitute_pseudo): Add DEBUG_P argument.
4894         * lra.c (lra_substitute_pseudo): Likewise.  If true, use
4895         gen_rtx_raw_SUBREG instead of gen_rtx_SUBREG.  Pass DEBUG_P to
4896         recursive calls.
4897         (lra_substitute_pseudo_within_insn): Adjust lra_substitute_pseudo
4898         callers.
4899         * lra-constraints.c (inherit_reload_reg, split_reg): Likewise.
4900
4901 2018-02-16  Eric Botcazou  <ebotcazou@adacore.com>
4902
4903         PR rtl-optimization/81443
4904         * rtlanal.c (num_sign_bit_copies1) <SUBREG>: Do not propagate results
4905         from inner REGs to paradoxical SUBREGs.
4906
4907 2018-02-16  Richard Biener  <rguenther@suse.de>
4908
4909         PR tree-optimization/84399
4910         * graphite-scop-detection.c (scop_detection::stmt_simple_for_scop_p):
4911         For operands we can analyze at their definition make sure we can
4912         analyze them at each use as well.
4913
4914 2018-02-16  Richard Biener  <rguenther@suse.de>
4915
4916         PR tree-optimization/84190
4917         * tree-ssa.c (non_rewritable_mem_ref_base): Do not touch
4918         volatile accesses if the decl isn't volatile.
4919
4920 2018-02-15  Jason Merrill  <jason@redhat.com>
4921
4922         PR c++/84314 - ICE with templates and fastcall attribute.
4923         * attribs.c (build_type_attribute_qual_variant): Don't clobber
4924         TYPE_CANONICAL on an existing type.
4925
4926 2018-02-15  Jakub Jelinek  <jakub@redhat.com>
4927
4928         PR tree-optimization/84383
4929         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Don't look at
4930         dstoff nor call operand_equal_p if dstbase is NULL.
4931
4932         PR tree-optimization/84334
4933         * match.pd ((A +- CST1) +- CST2 -> A + CST3): If A is
4934         also a CONSTANT_CLASS_P, punt.
4935
4936 2018-02-14  Jim Wilson  <jimw@sifive.com>
4937
4938         * config/riscv/riscv.c (riscv_first_stack_step): Move locals after
4939         first SMALL_OPERAND check.  New local min_second_step.  Move assert
4940         to where locals are set.  Add TARGET_RVC support.
4941         * config/riscv/riscv.h (C_SxSP_BITS, SWSP_REACH, SDSP_REACH): New.
4942
4943 2018-02-14  Indu Bhagat  <indu.bhagat@oracle.com>
4944
4945         * doc/invoke.texi: Correct -Wformat-overflow code sample.
4946
4947 2018-02-14  Martin Sebor  <msebor@redhat.com>
4948
4949         PR tree-optimization/83698
4950         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): For
4951         arrays constrain the offset range to their bounds.
4952         (builtin_access::strcat_overlap): Adjust the bounds of overlap offset.
4953         (builtin_access::overlap): Avoid setting the size of overlap if it's
4954         already been set.
4955         (maybe_diag_overlap): Also consider arrays when deciding what values
4956         of offsets to include in diagnostics.
4957
4958 2018-02-14  Martin Sebor  <msebor@redhat.com>
4959
4960         PR c/84108
4961         * attribs.c (diag_attr_exclusions): Consider the exclusion(s)
4962         that correspond to the kind of a declaration.
4963
4964 2018-02-14  John David Anglin  <danglin@gcc.gnu.org>
4965
4966         PR target/83984
4967         * config/pa/pa.md: Load address of PIC label using the linkage table
4968         if the label is nonlocal.
4969
4970 2018-02-14  Kelvin Nilsen  <kelvin@gcc.gnu.org>
4971
4972         * config/rs6000/rs6000.c (rs6000_option_override_internal): Issue
4973         warning message if user requests -maltivec=be.
4974         * doc/invoke.texi: Document deprecation of -maltivec=be.
4975
4976 2018-02-14  Will Schmidt  <will_schmidt@vnet.ibm.com>
4977
4978         PR target/84220
4979         * config/rs6000/rs6000-c.c: Update definitions for
4980         ALTIVEC_BUILTIN_VEC_SLD, ALTIVEC_BUILTIN_VEC_SLDW,
4981         VEC_XXSLDWI and ALTIVEC_BUILTIN_VEC_XXPERMDI builtins.
4982
4983 2018-02-14  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
4984
4985         PR target/84239
4986         * config/i386/cetintrin.h: Remove _rdssp[d|q] and
4987         add _get_ssp intrinsics. Remove argument from
4988         __builtin_ia32_rdssp[d|q].
4989         * config/i386/i386-builtin-types.def: Add UINT_FTYPE_VOID.
4990         * config/i386/i386-builtin.def: Remove argument from
4991         __builtin_ia32_rdssp[d|q].
4992         * config/i386/i386.c: Use UINT_FTYPE_VOID. Use
4993         ix86_expand_special_args_builtin for _rdssp[d|q].
4994         * config/i386/i386.md: Remove argument from rdssp[si|di] insn.
4995         Clear register before usage.
4996         * doc/extend.texi: Remove argument from __builtin_ia32_rdssp[d|q].
4997         Add documentation for new _get_ssp and _inc_ssp intrinsics.
4998
4999 2018-02-14  Richard Sandiford  <richard.sandiford@linaro.org>
5000
5001         PR tree-optimization/84357
5002         * tree-data-ref.c (object_address_invariant_in_loop_p): Check
5003         operand 1 of an ARRAY_REF too.
5004
5005 2018-02-14  Oleg Endo  <olegendo@gcc.gnu.org>
5006
5007         PR target/83831
5008         * config/rx/rx-protos.h (rx_reg_dead_or_unused_after_insn,
5009         rx_copy_reg_dead_or_unused_notes, rx_fuse_in_memory_bitop): New
5010         declarations.
5011         (set_of_reg): New struct.
5012         (rx_find_set_of_reg, rx_find_use_of_reg): New functions.
5013         * config/rx/rx.c (rx_reg_dead_or_unused_after_insn,
5014         rx_copy_reg_dead_or_unused_notes, rx_fuse_in_memory_bitop): New
5015         functions.
5016         * config/rx/rx.md (andsi3, iorsi3, xorsi3): Convert to insn_and_split.
5017         Split into bitclr, bitset, bitinvert patterns if appropriate.
5018         (*bitset, *bitinvert, *bitclr): Convert to named insn_and_split and
5019         use rx_fuse_in_memory_bitop.
5020         (*bitset_in_memory, *bitinvert_in_memory, *bitclr_in_memory): Convert
5021         to named insn, correct maximum insn length.
5022
5023 2018-02-14  Jozef Lawrynowicz  <jozefl.gcc@gmail.com>
5024
5025         PR target/79242
5026         * machmode.def: Define a complex mode for PARTIAL_INT.
5027         * genmodes.c (complex_class): Return MODE_COMPLEX_INT for
5028         MODE_PARTIAL_INT.
5029         * doc/rtl.texi: Document CSPImode.
5030         * config/msp430/msp430.c (msp430_hard_regno_nregs): Add CPSImode
5031         handling.
5032         (msp430_hard_regno_nregs_with_padding): Likewise.
5033
5034 2018-02-13  Peter Bergner  <bergner@vnet.ibm.com>
5035
5036         PR target/84279
5037         * config/rs6000/rs6000.c (mem_operand_gpr): Disallow altivec addresses.
5038
5039 2018-02-13  Segher Boessenkool  <segher@kernel.crashing.org>
5040
5041         PR rtl-optimization/84169
5042         * combine.c (try_combine): New variable split_i2i3.  Set it to true if
5043         we generated a parallel as new i3 and we split that to new i2 and i3
5044         instructions.  Handle split_i2i3 similar to swap_i2i3: scan the
5045         LOG_LINKs of i3 to see which of those need to link to i2 now.  Link
5046         those to i2, not i1.  Partially rewrite this scan code.
5047
5048 2018-02-13  Jakub Jelinek  <jakub@redhat.com>
5049
5050         PR c/82210
5051         * stor-layout.c (place_field): For variable length fields, adjust
5052         offset_align afterwards not just based on the field's alignment,
5053         but also on the size.
5054
5055         PR middle-end/84309
5056         * match.pd (pow(C,x) -> exp(log(C)*x)): Use exp2s and log2s instead
5057         of exps and logs in the use_exp2 case.
5058
5059 2018-02-13  Jeff Law  <law@redhat.com>
5060
5061         * config/rl/rl78.c (rl78_attribute_table): Fix terminator and
5062         entry for "vector".
5063
5064         * config/rl78/rl78.c (rl78_handle_func_attribute): Mark
5065         ARGS as unused.
5066
5067 2018-02-13  Alexandre Oliva  <aoliva@redhat.com>
5068
5069         PR debug/84342
5070         PR debug/84319
5071         * common.opt (gas-loc-support, gas-locview-support): New.
5072         (ginline-points, ginternal-reset-location-views): New.
5073         * doc/invoke.texi: Document them.  Use @itemx where intended.
5074         (gvariable-location-views): Adjust.
5075         * target.def (reset_location_view): New.
5076         * doc/tm.texi.in (DWARF2_ASM_VIEW_DEBUG_INFO): New.
5077         (TARGET_RESET_LOCATION_VIEW): New.
5078         * doc/tm.texi: Rebuilt.
5079         * dwarf2out.c (dwarf2out_default_as_loc_support): New.
5080         (dwarf2out_default_as_locview_support): New.
5081         (output_asm_line_debug_info): Use option variables.
5082         (dwarf2out_maybe_output_loclist_view_pair): Likewise.
5083         (output_loc_list): Likewise.
5084         (add_high_low_attributes): Check option variables.
5085         Don't output entry view attribute in strict mode.
5086         (gen_inlined_subroutine_die): Check option variables.
5087         (dwarf2out_inline_entry): Likewise.
5088         (init_sections_and_labels): Likewise.
5089         (dwarf2out_early_finish): Likewise.
5090         (maybe_reset_location_view): New, from...
5091         (dwarf2out_var_location): ... here.  Call it.
5092         * debug.h (dwarf2out_default_as_loc_support): Declare.
5093         (dwarf2out_default_as_locview_support): Declare.
5094         * hooks.c (hook_int_rtx_insn_0): New.
5095         * hooks.h (hook_int_rtx_insn_0): Declare.
5096         * toplev.c (process_options): Take -gas-loc-support and
5097         -gas-locview-support from dwarf2out.  Enable
5098         -gvariable-location-views by default only with locview
5099         assembler support.  Enable -ginternal-reset-location-views by
5100         default only if the target defines the corresponding hook.
5101         Enable -ginline-points by default if location views are
5102         enabled; force it disabled if statement frontiers are
5103         disabled.
5104         * tree-inline.c (expand_call_inline): Check option variables.
5105         * tree-ssa-live.c (remove_unused_scope_block_p): Likewise.
5106
5107 2018-02-13  Richard Sandiford  <richard.sandiford@linaro.org>
5108
5109         PR tree-optimization/84321
5110         * tree-vrp.c (intersect_range_with_nonzero_bits): Fix VR_ANTI_RANGE
5111         handling.  Also check whether the anti-range contains any values
5112         that satisfy the mask; switch to a VR_RANGE if not.
5113
5114 2018-02-13  Paolo Bonzini  <bonzini@gnu.org>
5115
5116         PR sanitizer/84340
5117         * internal-fn.def (ASAN_CHECK, ASAN_MARK): Revert changes to fnspec.
5118
5119 2018-02-13  Martin Jambor  <mjambor@suse.cz>
5120
5121         PR c++/83990
5122         * ipa-param-manipulation.c (ipa_modify_call_arguments): Use location
5123         of call statements, also set location of a load to a temporary.
5124
5125 2018-02-13  Sebastian Perta  <sebastian.perta@renesas.com>
5126
5127         * config/rl78/rl78.c (add_vector_labels): New function.
5128         * config/rl78/rl78.c (rl78_handle_vector_attribute): New function.
5129         * config/rl78/rl78.c (rl78_start_function): Call add_vector_labels.
5130         * config/rl78/rl78.c (rl78_handle_func_attribute): Removed the assert
5131         which checks that no arguments are passed.
5132         * config/rl78/rl78.c (rl78_attribute_table): Add "vector" attribute.
5133         * doc/extend.texi: Documentation for the new attribute.
5134
5135 2018-02-13  Andreas Schwab  <schwab@suse.de>
5136
5137         * config/riscv/linux.h (CPP_SPEC): Define.
5138
5139 2018-02-13  Jakub Jelinek  <jakub@redhat.com>
5140
5141         PR target/84335
5142         * config/i386/i386.c (ix86_init_mmx_sse_builtins): Pass
5143         OPTION_MASK_ISA_AES | OPTION_MASK_ISA_SSE2 instead of
5144         OPTION_MASK_ISA_AES as first argument to def_builtin_const
5145         for AES builtins.  Pass OPTION_MASK_ISA_PCLMUL | OPTION_MASK_ISA_SSE2
5146         instead of OPTION_MASK_ISA_PCLMUL as first argument to
5147         def_builtin_const for __builtin_ia32_pclmulqdq128 builtin.
5148         * config/i386/wmmintrin.h: If __SSE2__ is not defined, enable it
5149         temporarily for AES and PCLMUL builtins.
5150
5151         PR tree-optimization/84339
5152         * gimple-fold.c (get_range_strlen): Set *FLEXP to true when handling
5153         ARRAY_REF where first operand is array_at_struct_end_p COMPONENT_REF.
5154         Formatting fixes.
5155
5156         PR middle-end/84309
5157         * match.pd (pow(C,x) -> exp(log(C)*x)): Optimize instead into
5158         exp2(log2(C)*x) if C is a power of 2 and c99 runtime is available.
5159         * generic-match-head.c (canonicalize_math_after_vectorization_p): New
5160         inline function.
5161         * gimple-match-head.c (canonicalize_math_after_vectorization_p): New
5162         inline function.
5163         * omp-simd-clone.h: New file.
5164         * omp-simd-clone.c: Include omp-simd-clone.h.
5165         (expand_simd_clones): No longer static.
5166         * tree-vect-patterns.c: Include fold-const-call.h, attribs.h,
5167         cgraph.h and omp-simd-clone.h.
5168         (vect_recog_pow_pattern): Optimize pow(C,x) to exp(log(C)*x).
5169         (vect_recog_widen_shift_pattern): Formatting fix.
5170         (vect_pattern_recog_1): Don't check optab for calls.
5171
5172         PR target/84336
5173         * config/i386/sse.md (<avx512>_vpermi2var<mode>3_mask): Force
5174         operands[2] into a REG before using gen_lowpart on it.
5175
5176 2018-02-12  Jeff Law  <law@redhat.com>
5177
5178         PR target/83760
5179         * config/sh/sh.c (find_barrier): Consider a sibling call
5180         a barrier as well.
5181
5182         * cse.c (try_back_substitute_reg): Move any REG_ARGS_SIZE note when
5183         successfully back substituting a reg.
5184
5185 2018-02-12  Richard Biener  <rguenther@suse.de>
5186
5187         PR tree-optimization/84037
5188         * tree-vect-slp.c (vect_analyze_slp_cost): Add visited
5189         parameter, move visited init to caller.
5190         (vect_slp_analyze_operations): Separate cost from validity
5191         check, initialize visited once for all instances.
5192         (vect_schedule_slp): Analyze map to CSE vectorized nodes once
5193         for all instances.
5194         * tree-vect-stmts.c (vect_model_simple_cost): Make early
5195         out an assert.
5196         (vect_model_promotion_demotion_cost): Likewise.
5197         (vectorizable_bswap): Guard cost modeling with !slp_node
5198         instead of !PURE_SLP_STMT to avoid double-counting on hybrid
5199         SLP stmts.
5200         (vectorizable_call): Likewise.
5201         (vectorizable_conversion): Likewise.
5202         (vectorizable_assignment): Likewise.
5203         (vectorizable_shift): Likewise.
5204         (vectorizable_operation): Likewise.
5205         (vectorizable_store): Likewise.
5206         (vectorizable_load): Likewise.
5207         (vectorizable_condition): Likewise.
5208         (vectorizable_comparison): Likewise.
5209
5210 2018-02-12  Paolo Bonzini  <bonzini@gnu.org>
5211
5212         PR sanitizer/84307
5213         * internal-fn.def (ASAN_CHECK): Fix fnspec to account for return value.
5214         (ASAN_MARK): Fix fnspec to account for return value, change pointer
5215         argument from 'R' to 'W' so that the pointed-to datum is clobbered.
5216
5217 2018-02-08  Jan Hubicka  <hubicka@ucw.cz>
5218
5219         PR middle-end/83665
5220         * params.def (inline-min-speedup): Increase from 8 to 15.
5221         (max-inline-insns-auto): Decrease from 40 to 30.
5222         * ipa-split.c (consider_split): Add some buffer for function to
5223         be considered inlining candidate.
5224         * invoke.texi (max-inline-insns-auto, inline-min-speedup): UPdate
5225         default values.
5226
5227 2018-02-12  Richard Biener  <rguenther@suse.de>
5228
5229         PR tree-optimization/84037
5230         * tree-vect-slp.c (vect_build_slp_tree_2): Try swapping the
5231         matched stmts if we cannot swap the non-matched ones.
5232
5233 2018-02-12  Olga Makhotina  <olga.makhotina@intel.com>
5234
5235         * config/i386/avx512fintrin.h (_mm_mask_scalef_round_sd,
5236         _mm_maskz_scalef_round_sd, _mm_mask_scalef_round_ss,
5237         _mm_maskz_scalef_round_ss): New intrinsics.
5238         (__builtin_ia32_scalefsd_round, __builtin_ia32_scalefss_round): Fix.
5239         * config/i386/i386-builtin.def (__builtin_ia32_scalefsd_round,
5240         __builtin_ia32_scalefss_round): Remove.
5241         (__builtin_ia32_scalefsd_mask_round,
5242         __builtin_ia32_scalefss_mask_round): New intrinsics.
5243         * config/i386/sse.md (vmscalef<mode><round_name>): Renamed to ...
5244         (vmscalef<mode><mask_scalar_name><round_scalar_name>): ... this.
5245         ((match_operand:VF_128 2 "<round_nimm_predicate>"
5246         "<round_constraint>")): Changed to ...
5247         ((match_operand:VF_128 2 "<round_scalar_nimm_predicate>"
5248         "<round_scalar_constraint>")): ... this.
5249         ("vscalef<ssescalarmodesuffix>\t{<round_op3>%2, %1, %0|
5250         %0, %1, %2<round_op3>}"): Changed to ...
5251         ("vscalef<ssescalarmodesuffix>\t{<round_scalar_mask_op3>%2, %1,
5252         %0<mask_scalar_operand3>|%0<mask_scalar_operand3>, %1,
5253         %2<round_scalar_mask_op3>}"): ... this.
5254         * config/i386/subst.md (round_scalar_nimm_predicate): New.
5255
5256 2018-02-12  Olga Makhotina  <olga.makhotina@intel.com>
5257
5258         * config/i386/avx512fintrin.h (_mm_mask_sqrt_round_sd)
5259         (_mm_maskz_sqrt_round_sd, _mm_mask_sqrt_round_ss)
5260         (_mm_maskz_sqrt_round_ss): New intrinsics.
5261         (__builtin_ia32_sqrtsd_round, __builtin_ia32_sqrtss_round): Remove.
5262         (__builtin_ia32_sqrtsd_mask_round)
5263         (__builtin_ia32_sqrtss_mask_round): New builtins.
5264         * config/i386/i386-builtin.def (__builtin_ia32_sqrtsd_round)
5265         (__builtin_ia32_sqrtss_round): Remove.
5266         (__builtin_ia32_sqrtsd_mask_round)
5267         (__builtin_ia32_sqrtss_mask_round): New builtins.
5268         * config/i386/sse.md (vmsqrt<mode>2<round_name>): Renamed to ...
5269         (vmsqrt<mode>2<mask_scalar_name><round_scalar_name>): ... this.
5270         ((match_operand:VF_128 1 "vector_operand"
5271         "xBm,<round_constraint>")): Changed to ...
5272         ((match_operand:VF_128 1 "vector_operand"
5273         "xBm,<round_scalar_constraint>")): ... this.
5274         (vsqrt<ssescalarmodesuffix>\t{<round_op3>%1, %2, %0|
5275         %0, %2, %<iptr>1<round_op3>}): Changed to ...
5276         (vsqrt<ssescalarmodesuffix>\t{<round_scalar_mask_op3>%1, %2,
5277         %0<mask_scalar_operand3>|%0<mask_scalar_operand3>, %2,
5278         %<iptr>1<round_scalar_mask_op3>}): ... this.
5279         ((set_attr "prefix" "<round_prefix>")): Changed to ...
5280         ((set_attr "prefix" "<round_scalar_prefix>")): ... this.
5281
5282 2018-02-11  Steven Munroe  <munroesj@gcc.gnu.org>
5283
5284         PR target/84266
5285         * config/rs6000/mmintrin.h (_mm_cmpeq_pi32 [_ARCH_PWR9]):
5286         Cast vec_cmpeq result to correct type.
5287         * config/rs6000/mmintrin.h (_mm_cmpgt_pi32 [_ARCH_PWR9]):
5288         Cast vec_cmpgt result to correct type.
5289
5290 2018-02-11  Alexandre Oliva  <aoliva@redhat.com>
5291
5292         * final.c (final_scan_insn_1): Renamed from...
5293         (final_scan_insn): ... this.  New wrapper, to recover
5294         seen from the outermost call in recursive ones.
5295         * config/sparc/sparc.c (output_return): Drop seen from call.
5296         (output_sibcall): Likewise.
5297         * config/visium/visium.c (output_branch): Likewise.
5298
5299 2018-02-10  John David Anglin  <danglin@gcc.gnu.org>
5300
5301         * config/pa/pa.c (hppa_profile_hook): Mark SYMBOL_REF for _mcount as
5302         function label.
5303
5304 2018-02-10  Alan Modra  <amodra@gmail.com>
5305
5306         PR target/84300
5307         * config/rs6000/rs6000.md (split_stack_return): Remove (use ..).
5308         Specify LR as an input.
5309
5310 2018-02-10  Jakub Jelinek  <jakub@redhat.com>
5311
5312         PR sanitizer/83987
5313         * omp-low.c (maybe_remove_omp_member_access_dummy_vars,
5314         remove_member_access_dummy_vars): New functions.
5315         (lower_omp_for, lower_omp_taskreg, lower_omp_target,
5316         lower_omp_1, execute_lower_omp): Use them.
5317
5318         PR rtl-optimization/84308
5319         * shrink-wrap.c (spread_components): Release todo vector.
5320
5321 2018-02-09  Vladimir Makarov  <vmakarov@redhat.com>
5322
5323         PR rtl-optimization/57193
5324         * ira-color.c (struct allocno_color_data): Add member
5325         conflict_allocno_hard_prefs.
5326         (update_conflict_allocno_hard_prefs): New.
5327         (bucket_allocno_compare_func): Add a preference based on
5328         conflict_allocno_hard_prefs.
5329         (push_allocno_to_stack): Update conflict_allocno_hard_prefs.
5330         (color_allocnos): Remove a dead code.  Initiate
5331         conflict_allocno_hard_prefs.  Call update_costs_from_prefs.
5332
5333 2018-02-09  Jakub Jelinek  <jakub@redhat.com>
5334
5335         PR target/84226
5336         * config/rs6000/vsx.md (p9_xxbrq_v16qi): Change input operand
5337         constraint from =wa to wa.  Avoid a subreg on the output operand,
5338         instead use a pseudo and subreg it in a move.
5339         (p9_xxbrd_<mode>): Changed to ...
5340         (p9_xxbrd_v2di): ... this insn, without VSX_D iterator.
5341         (p9_xxbrd_v2df): New expander.
5342         (p9_xxbrw_<mode>): Changed to ...
5343         (p9_xxbrw_v4si): ... this insn, without VSX_W iterator.
5344         (p9_xxbrw_v4sf): New expander.
5345
5346 2018-02-09  Sebastian Perta  <sebastian.perta@renesas.com>
5347
5348         * config/rx/rx.md (movsicc): Update expander to be matched by GCC.
5349
5350 2018-02-09  Peter Bergner  <bergner@vnet.ibm.com>
5351
5352         PR target/83926
5353         * config/rs6000/vsx.md (vsx_mul_v2di): Handle generating a 64-bit
5354         multiply in 32-bit mode.
5355         (vsx_div_v2di): Handle generating a 64-bit signed divide in 32-bit mode.
5356         (vsx_udiv_v2di): Handle generating a 64-bit unsigned divide in 32-bit
5357         mode.
5358
5359 2018-02-09  Sebastian Perta  <sebastian.perta@renesas.com>
5360
5361         * config/rx/constraints.md (CALL_OP_SYMBOL_REF): Added new constraint
5362         to allow or block "symbol_ref" depending on the value of TARGET_JSR.
5363         * config/rx/rx.md (call_internal): Use CALL_OP_SYMBOL_REF.
5364         * config/rx/rx.md (call_value_internal): Use CALL_OP_SYMBOL_REF.
5365
5366 2018-02-09  Pierre-Marie de Rodat  <derodat@adacore.com>
5367
5368         PR lto/84213
5369         * dwarf2out.c (is_trivial_indirect_ref): New function.
5370         (dwarf2out_late_global_decl): Do not generate a location
5371         attribute for variables that have a non-trivial DECL_VALUE_EXPR
5372         and that are not defined in the current unit.
5373
5374 2018-02-09  Eric Botcazou  <ebotcazou@adacore.com>
5375
5376         * optabs.c (prepare_cmp_insn): Try harder to emit a direct comparison
5377         instead of a libcall for UNORDERED.
5378
5379 2018-02-09  Tamar Christina  <tamar.christina@arm.com>
5380
5381         PR target/82641
5382         * config/arm/arm-c.c (arm_cpu_builtins): Un-define __ARM_FEATURE_LDREX,
5383         __ARM_ARCH_PROFILE, __ARM_ARCH_ISA_THUMB, __ARM_FP and __ARM_NEON_FP.
5384
5385 2018-02-09  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
5386
5387         PR target/PR84295
5388         * config/s390/s390.c (s390_set_current_function): Invoke
5389         s390_indirect_branch_settings also if fndecl didn't change.
5390
5391 2018-02-09  Alexandre Oliva  <aoliva@redhat.com>
5392
5393         * config/rs6000/rs6000.md (blockage): Set length to zero.
5394
5395 2018-02-09  Eric Botcazou  <ebotcazou@adacore.com>
5396
5397         * expr.c (optimize_bitfield_assignment_op): Remove obsolete assertion.
5398
5399 2018-02-09  Jakub Jelinek  <jakub@redhat.com>
5400
5401         PR sanitizer/84285
5402         * gcc.c (STATIC_LIBASAN_LIBS, STATIC_LIBTSAN_LIBS,
5403         STATIC_LIBLSAN_LIBS, STATIC_LIBUBSAN_LIBS): Handle -static like
5404         -static-lib*san.
5405
5406         PR debug/84252
5407         * var-tracking.c (vt_add_function_parameter): Punt for non-onepart
5408         PARALLEL incoming that failed vt_get_decl_and_offset check.
5409
5410         PR middle-end/84237
5411         * output.h (bss_initializer_p): Add NAMED argument, defaulted to false.
5412         * varasm.c (bss_initializer_p): Add NAMED argument, if true, ignore
5413         TREE_READONLY bit.
5414         (get_variable_section): For decls in named .bss* sections pass true as
5415         second argument to bss_initializer_p.
5416
5417 2018-02-09  Marek Polacek  <polacek@redhat.com>
5418             Jakub Jelinek  <jakub@redhat.com>
5419
5420         PR c++/83659
5421         * fold-const.c (fold_indirect_ref_1): Use VECTOR_TYPE_P macro.
5422         Formatting fixes.  Verify first that tree_fits_poly_int64_p (op01).
5423         Sync some changes from cxx_fold_indirect_ref.
5424
5425 2018-02-09  Alexandre Oliva  <aoliva@redhat.com>
5426
5427         * cfgexpand.c (expand_gimple_basic_block): Handle inline entry
5428         markers.
5429         * dwarf2out.c (dwarf2_debug_hooks): Enable inline_entry hook.
5430         (BLOCK_INLINE_ENTRY_LABEL): New.
5431         (dwarf2out_var_location): Disregard inline entry markers.
5432         (inline_entry_data): New struct.
5433         (inline_entry_data_hasher): New hashtable type.
5434         (inline_entry_data_hasher::hash): New.
5435         (inline_entry_data_hasher::equal): New.
5436         (inline_entry_data_table): New variable.
5437         (add_high_low_attributes): Add DW_AT_entry_pc and
5438         DW_AT_GNU_entry_view attributes if a pending entry is found
5439         in inline_entry_data_table.  Add old entry_pc attribute only
5440         if debug nonbinding markers are disabled.
5441         (gen_inlined_subroutine_die): Set BLOCK_DIE if nonbinding
5442         markers are enabled.
5443         (block_within_block_p, dwarf2out_inline_entry): New.
5444         (dwarf2out_finish): Check that no entries remained in
5445         inline_entry_data_table.
5446         * final.c (reemit_insn_block_notes): Handle inline entry notes.
5447         (final_scan_insn, notice_source_line): Likewise.
5448         (rest_of_clean_state): Skip inline entry markers.
5449         * gimple-pretty-print.c (dump_gimple_debug): Handle inline entry
5450         markers.
5451         * gimple.c (gimple_build_debug_inline_entry): New.
5452         * gimple.h (enum gimple_debug_subcode): Add
5453         GIMPLE_DEBUG_INLINE_ENTRY.
5454         (gimple_build_debug_inline_entry): Declare.
5455         (gimple_debug_inline_entry_p): New.
5456         (gimple_debug_nonbind_marker_p): Adjust.
5457         * insn-notes.def (INLINE_ENTRY): New.
5458         * print-rtl.c (rtx_writer::print_rtx_operand_code_0): Handle
5459         inline entry marker notes.
5460         (print_insn): Likewise.
5461         * rtl.h (NOTE_MARKER_P): Add INLINE_ENTRY support.
5462         (INSN_DEBUG_MARKER_KIND): Likewise.
5463         (GEN_RTX_DEBUG_MARKER_INLINE_ENTRY_PAT): New.
5464         * tree-inline.c (expand_call_inline): Build and insert
5465         debug_inline_entry stmt.
5466         * tree-ssa-live.c (remove_unused_scope_block_p): Preserve
5467         inline entry blocks early, if nonbind markers are enabled.
5468         (dump_scope_block): Dump fragment info.
5469         * var-tracking.c (reemit_marker_as_note): Handle inline entry note.
5470         * doc/gimple.texi (gimple_debug_inline_entry_p): New.
5471         (gimple_build_debug_inline_entry): New.
5472         * doc/invoke.texi (gstatement-frontiers, gno-statement-frontiers):
5473         Enable/disable inline entry points too.
5474         * doc/rtl.texi (NOTE_INSN_INLINE_ENTRY): New.
5475         (DEBUG_INSN): Describe inline entry markers.
5476
5477         * common.opt (gvariable-location-views): New.
5478         (gvariable-location-views=incompat5): New.
5479         * config.in: Rebuilt.
5480         * configure: Rebuilt.
5481         * configure.ac: Test assembler for view support.
5482         * dwarf2asm.c (dw2_asm_output_symname_uleb128): New.
5483         * dwarf2asm.h (dw2_asm_output_symname_uleb128): Declare.
5484         * dwarf2out.c (var_loc_view): New typedef.
5485         (struct dw_loc_list_struct): Add vl_symbol, vbegin, vend.
5486         (dwarf2out_locviews_in_attribute): New.
5487         (dwarf2out_locviews_in_loclist): New.
5488         (dw_val_equal_p): Compare val_view_list of dw_val_class_view_lists.
5489         (enum dw_line_info_opcode): Add LI_adv_address.
5490         (struct dw_line_info_table): Add view.
5491         (RESET_NEXT_VIEW, RESETTING_VIEW_P): New macros.
5492         (DWARF2_ASM_VIEW_DEBUG_INFO): Define default.
5493         (zero_view_p): New variable.
5494         (ZERO_VIEW_P): New macro.
5495         (output_asm_line_debug_info): New.
5496         (struct var_loc_node): Add view.
5497         (add_AT_view_list, AT_loc_list): New.
5498         (add_var_loc_to_decl): Add view param.  Test it against last.
5499         (new_loc_list): Add view params.  Record them.
5500         (AT_loc_list_ptr): Handle loc and view lists.
5501         (view_list_to_loc_list_val_node): New.
5502         (print_dw_val): Handle dw_val_class_view_list.
5503         (size_of_die): Likewise.
5504         (value_format): Likewise.
5505         (loc_list_has_views): New.
5506         (gen_llsym): Set vl_symbol too.
5507         (maybe_gen_llsym, skip_loc_list_entry): New.
5508         (dwarf2out_maybe_output_loclist_view_pair): New.
5509         (output_loc_list): Output view list or entries too.
5510         (output_view_list_offset): New.
5511         (output_die): Handle dw_val_class_view_list.
5512         (output_dwarf_version): New.
5513         (output_compilation_unit_header): Use it.
5514         (output_skeleton_debug_sections): Likewise.
5515         (output_rnglists, output_line_info): Likewise.
5516         (output_pubnames, output_aranges): Update version comments.
5517         (output_one_line_info_table): Output view numbers in asm comments.
5518         (dw_loc_list): Determine current endview, pass it to new_loc_list.
5519         Call maybe_gen_llsym.
5520         (loc_list_from_tree_1): Adjust.
5521         (add_AT_location_description): Create view list attribute if
5522         needed, check it's absent otherwise.
5523         (convert_cfa_to_fb_loc_list): Adjust.
5524         (maybe_emit_file): Call output_asm_line_debug_info for test.
5525         (dwarf2out_var_location): Reset views as needed.  Precompute
5526         add_var_loc_to_decl args.  Call get_attr_min_length only if we have the
5527         attribute.  Set view.
5528         (new_line_info_table): Reset next view.
5529         (set_cur_line_info_table): Call output_asm_line_debug_info for test.
5530         (dwarf2out_source_line): Likewise.  Output view resets and labels to
5531         the assembler, or select appropriate line info opcodes.
5532         (prune_unused_types_walk_attribs): Handle dw_val_class_view_list.
5533         (optimize_string_length): Catch it.  Adjust.
5534         (resolve_addr): Copy vl_symbol along with ll_symbol.  Handle
5535         dw_val_class_view_list, and remove it if no longer needed.
5536         (hash_loc_list): Hash view numbers.
5537         (loc_list_hasher::equal): Compare them.
5538         (optimize_location_lists): Check whether a view list symbol is
5539         needed, and whether the locview attribute is present, and
5540         whether they match.  Remove the locview attribute if no longer
5541         needed.
5542         (index_location_lists): Call skip_loc_list_entry for test.
5543         (dwarf2out_finish): Call output_asm_line_debug_info for test.
5544         Use output_dwarf_version.
5545         * dwarf2out.h (enum dw_val_class): Add dw_val_class_view_list.
5546         (struct dw_val_node): Add val_view_list.
5547         * final.c (SEEN_NEXT_VIEW): New.
5548         (set_next_view_needed): New.
5549         (clear_next_view_needed): New.
5550         (maybe_output_next_view): New.
5551         (final_start_function): Rename to...
5552         (final_start_function_1): ... this.  Take pointer to FIRST,
5553         add SEEN parameter.  Emit param bindings in the initial view.
5554         (final_start_function): Reintroduce SEEN-less interface.
5555         (final): Rename to...
5556         (final_1): ... this.  Take SEEN parameter.  Output final pending
5557         next view at the end.
5558         (final): Reintroduce seen-less interface.
5559         (final_scan_insn): Output pending next view before switching
5560         sections or ending a block.  Mark the next view as needed when
5561         outputting variable locations.  Notify debug backend of section
5562         changes, and of location view changes.
5563         (rest_of_handle_final): Adjust.
5564         * toplev.c (process_options): Autodetect value for debug variable
5565         location views option.  Warn on incompat5 without -gdwarf-5.
5566         * doc/invoke.texi (gvariable-location-views): New.
5567         (gvariable-location-views=incompat5): New.
5568         (gno-variable-location-views): New.
5569
5570 2018-02-08  David Malcolm  <dmalcolm@redhat.com>
5571
5572         PR tree-optimization/84136
5573         * tree-cfg.c (find_taken_edge_computed_goto): Remove assertion
5574         that the result of find_edge is non-NULL.
5575
5576 2018-02-08  Sergey Shalnov  <sergey.shalnov@intel.com>
5577
5578         PR target/83008
5579         * config/i386/x86-tune-costs.h (skylake_cost): Fix cost of
5580         storing integer register in SImode.  Fix cost of 256 and 512
5581         byte aligned SSE register store.
5582
5583 2018-02-08  Sergey Shalnov  <sergey.shalnov@intel.com>
5584
5585         * config/i386/i386.c (ix86_multiplication_cost): Fix
5586         multiplication cost for TARGET_AVX512DQ.
5587
5588 2018-02-08  Marek Polacek  <polacek@redhat.com>
5589
5590         PR tree-optimization/84238
5591         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Verify the result of
5592         get_range_strlen.
5593
5594 2018-02-08  Richard Sandiford  <richard.sandiford@linaro.org>
5595
5596         PR tree-optimization/84265
5597         * tree-vect-stmts.c (vectorizable_store): Don't treat
5598         VMAT_CONTIGUOUS accesses as grouped.
5599         (vectorizable_load): Likewise.
5600
5601 2018-02-08  Richard Sandiford  <richard.sandiford@linaro.org>
5602
5603         PR tree-optimization/81635
5604         * wide-int.h (wi::round_down_for_mask, wi::round_up_for_mask): Declare.
5605         * wide-int.cc (wi::round_down_for_mask, wi::round_up_for_mask)
5606         (test_round_for_mask): New functions.
5607         (wide_int_cc_tests): Call test_round_for_mask.
5608         * tree-vrp.h (intersect_range_with_nonzero_bits): Declare.
5609         * tree-vrp.c (intersect_range_with_nonzero_bits): New function.
5610         * tree-data-ref.c (split_constant_offset_1): Use it to refine the
5611         range returned by get_range_info.
5612
5613 2018-02-08  Jan Hubicka  <hubicka@ucw.cz>
5614
5615         PR ipa/81360
5616         * cgraph.h (symtab_node::output_to_lto_symbol_table_p): Declare
5617         * symtab.c: Include builtins.h
5618         (symtab_node::output_to_lto_symbol_table_p): Move here
5619         from lto-streamer-out.c:output_symbol_p.
5620         * lto-streamer-out.c (write_symbol): Turn early exit to assert.
5621         (output_symbol_p): Move all logic to symtab.c
5622         (produce_symtab): Update.
5623
5624 2018-02-08  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
5625
5626         * config/s390/s390-opts.h (enum indirect_branch): Define.
5627         * config/s390/s390-protos.h (s390_return_addr_from_memory)
5628         (s390_indirect_branch_via_thunk)
5629         (s390_indirect_branch_via_inline_thunk): Add function prototypes.
5630         (enum s390_indirect_branch_type): Define.
5631         * config/s390/s390.c (struct s390_frame_layout, struct
5632         machine_function): Remove.
5633         (indirect_branch_prez10thunk_mask, indirect_branch_z10thunk_mask)
5634         (indirect_branch_table_label_no, indirect_branch_table_name):
5635         Define variables.
5636         (INDIRECT_BRANCH_NUM_OPTIONS): Define macro.
5637         (enum s390_indirect_branch_option): Define.
5638         (s390_return_addr_from_memory): New function.
5639         (s390_handle_string_attribute): New function.
5640         (s390_attribute_table): Add new attribute handler.
5641         (s390_execute_label): Handle UNSPEC_EXECUTE_JUMP patterns.
5642         (s390_indirect_branch_via_thunk): New function.
5643         (s390_indirect_branch_via_inline_thunk): New function.
5644         (s390_function_ok_for_sibcall): When jumping via thunk disallow
5645         sibling call optimization for non z10 compiles.
5646         (s390_emit_call): Force indirect branch target to be a single
5647         register.  Add r1 clobber for non-z10 compiles.
5648         (s390_emit_epilogue): Emit return jump via return_use expander.
5649         (s390_reorg): Handle JUMP_INSNs as execute targets.
5650         (s390_option_override_internal): Perform validity checks for the
5651         new command line options.
5652         (s390_indirect_branch_attrvalue): New function.
5653         (s390_indirect_branch_settings): New function.
5654         (s390_set_current_function): Invoke s390_indirect_branch_settings.
5655         (s390_output_indirect_thunk_function):  New function.
5656         (s390_code_end): Implement target hook.
5657         (s390_case_values_threshold): Implement target hook.
5658         (TARGET_ASM_CODE_END, TARGET_CASE_VALUES_THRESHOLD): Define target
5659         macros.
5660         * config/s390/s390.h (struct s390_frame_layout)
5661         (struct machine_function): Move here from s390.c.
5662         (TARGET_INDIRECT_BRANCH_NOBP_RET)
5663         (TARGET_INDIRECT_BRANCH_NOBP_JUMP)
5664         (TARGET_INDIRECT_BRANCH_NOBP_JUMP_THUNK)
5665         (TARGET_INDIRECT_BRANCH_NOBP_JUMP_INLINE_THUNK)
5666         (TARGET_INDIRECT_BRANCH_NOBP_CALL)
5667         (TARGET_DEFAULT_INDIRECT_BRANCH_TABLE)
5668         (TARGET_INDIRECT_BRANCH_THUNK_NAME_EXRL)
5669         (TARGET_INDIRECT_BRANCH_THUNK_NAME_EX)
5670         (TARGET_INDIRECT_BRANCH_TABLE): Define macros.
5671         * config/s390/s390.md (UNSPEC_EXECUTE_JUMP)
5672         (INDIRECT_BRANCH_THUNK_REGNUM): Define constants.
5673         (mnemonic attribute): Add values which aren't recognized
5674         automatically.
5675         ("*cjump_long", "*icjump_long", "*basr", "*basr_r"): Disable
5676         pattern for branch conversion.  Fix mnemonic attribute.
5677         ("*c<code>", "*sibcall_br", "*sibcall_value_br", "*return"): Emit
5678         indirect branch via thunk if requested.
5679         ("indirect_jump", "<code>"): Expand patterns for branch conversion.
5680         ("*indirect_jump"): Disable for branch conversion using out of
5681         line thunks.
5682         ("indirect_jump_via_thunk<mode>_z10")
5683         ("indirect_jump_via_thunk<mode>")
5684         ("indirect_jump_via_inlinethunk<mode>_z10")
5685         ("indirect_jump_via_inlinethunk<mode>", "*casesi_jump")
5686         ("casesi_jump_via_thunk<mode>_z10", "casesi_jump_via_thunk<mode>")
5687         ("casesi_jump_via_inlinethunk<mode>_z10")
5688         ("casesi_jump_via_inlinethunk<mode>", "*basr_via_thunk<mode>_z10")
5689         ("*basr_via_thunk<mode>", "*basr_r_via_thunk_z10")
5690         ("*basr_r_via_thunk", "return<mode>_prez10"): New pattern.
5691         ("*indirect2_jump"): Disable for branch conversion.
5692         ("casesi_jump"): Turn into expander and expand patterns for branch
5693         conversion.
5694         ("return_use"): New expander.
5695         ("*return"): Emit return via thunk and rename it to ...
5696         ("*return<mode>"): ... this one.
5697         * config/s390/s390.opt: Add new options and and enum for the
5698         option values.
5699
5700 2018-02-08  Richard Sandiford  <richard.sandiford@linaro.org>
5701
5702         * lra-constraints.c (match_reload): Unconditionally use
5703         gen_lowpart_SUBREG, rather than selecting between that
5704         and equivalent gen_rtx_SUBREG code.
5705
5706 2018-02-08  Richard Biener  <rguenther@suse.de>
5707
5708         PR tree-optimization/84233
5709         * tree-ssa-phiprop.c (propagate_with_phi): Use separate
5710         changed flag instead of boguously re-using phi_inserted.
5711
5712 2018-02-08  Martin Jambor  <mjambor@suse.cz>
5713
5714         * hsa-gen.c (get_symbol_for_decl): Set program allocation for
5715         static local variables.
5716
5717 2018-02-08  Richard Biener  <rguenther@suse.de>
5718
5719         PR tree-optimization/84278
5720         * tree-vect-stmts.c (vectorizable_store): When looking for
5721         smaller vector types to perform grouped strided loads/stores
5722         make sure the mode is supported by the target.
5723         (vectorizable_load): Likewise.
5724
5725 2018-02-08  Wilco Dijkstra  <wdijkstr@arm.com>
5726
5727         * config/aarch64/aarch64.c (aarch64_components_for_bb):
5728         Increase LDP/STP opportunities by adding adjacent callee-saves.
5729
5730 2018-02-08  Wilco Dijkstra  <wdijkstr@arm.com>
5731
5732         PR rtl-optimization/84068
5733         PR rtl-optimization/83459
5734         * haifa-sched.c (rank_for_schedule): Fix SCHED_PRESSURE_MODEL sorting.
5735
5736 2018-02-08  Aldy Hernandez  <aldyh@redhat.com>
5737
5738         PR tree-optimization/84224
5739         * gimple-ssa-warn-alloca.c (pass_walloca::execute): Remove assert.
5740         * calls.c (gimple_alloca_call_p): Only return TRUE when we have
5741         non-zero arguments.
5742
5743 2018-02-07  Iain Sandoe  <iain@codesourcery.com>
5744
5745         PR target/84113
5746         * config/rs6000/altivec.md (*restore_world): Remove LR use.
5747         * config/rs6000/predicates.md (restore_world_operation): Adjust op
5748         count, remove one USE.
5749
5750 2018-02-07  Michael Meissner  <meissner@linux.vnet.ibm.com>
5751
5752         * doc/install.texi (Configuration): Document the
5753         --with-long-double-format={ibm,ieee} PowerPC configuration
5754         options.
5755
5756         PR target/84154
5757         * config/rs6000/rs6000.md (fix_trunc<SFDF:mode><QHI:mode>2):
5758         Convert from define_expand to be define_insn_and_split.  Rework
5759         float/double/_Float128 conversions to QI/HI/SImode to work with
5760         both ISA 2.07 (power8) or ISA 3.0 (power9).  Fix regression where
5761         conversions to QI/HImode types did a store and then a load to
5762         truncate the value.  For conversions to VSX registers, don't split
5763         the insn, instead emit the code directly.  Use the code iterator
5764         any_fix to combine signed and unsigned conversions.
5765         (fix<uns>_trunc<SFDF:mode>si2_p8): Likewise.
5766         (fixuns_trunc<SFDF:mode><QHI:mode>2): Likewise.
5767         (fix_trunc<IEEE128:mode><QHI:mode>2): Likewise.
5768         (fix<uns>_trunc<SFDF:mode><QHI:mode>2): Likewise.
5769         (fix_<mode>di2_hw): Likewise.
5770         (fixuns_<mode>di2_hw): Likewise.
5771         (fix_<mode>si2_hw): Likewise.
5772         (fixuns_<mode>si2_hw): Likewise.
5773         (fix<uns>_<IEEE128:mode><SDI:mode>2_hw): Likewise.
5774         (fix<uns>_trunc<IEEE128:mode><QHI:mode>2): Likewise.
5775         (fctiw<u>z_<mode>_smallint): Rename fctiw<u>z_<mode>_smallint to
5776         fix<uns>_trunc<SFDF:mode>si2_p8.
5777         (fix_trunc<SFDF:mode><QHI:mode>2_internal): Delete, no longer
5778         used.
5779         (fixuns_trunc<SFDF:mode><QHI:mode>2_internal): Likewise.
5780         (fix<uns>_<mode>_mem): Likewise.
5781         (fctiw<u>z_<mode>_mem): Likewise.
5782         (fix<uns>_<mode>_mem): Likewise.
5783         (fix<uns>_trunc<SFDF:mode><QHSI:mode>2_mem): On ISA 3.0, prevent
5784         the register allocator from doing a direct move to the GPRs to do
5785         a store, and instead use the ISA 3.0 store byte/half-word from
5786         vector register instruction.  For IEEE 128-bit floating point,
5787         also optimize stores of 32-bit ints.
5788         (fix<uns>_trunc<IEEE128:mode><QHSI:mode>2_mem): Likewise.
5789
5790 2018-02-07  Alan Hayward  <alan.hayward@arm.com>
5791
5792         * genextract.c (push_pathstr_operand): New function to support
5793         [a-zA-Z].
5794         (walk_rtx): Call push_pathstr_operand.
5795         (print_path): Support [a-zA-Z].
5796
5797 2018-02-07  Richard Biener  <rguenther@suse.de>
5798
5799         PR tree-optimization/84037
5800         * tree-vectorizer.h (struct _loop_vec_info): Add ivexpr_map member.
5801         (cse_and_gimplify_to_preheader): Declare.
5802         (vect_get_place_in_interleaving_chain): Likewise.
5803         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
5804         ivexpr_map.
5805         (_loop_vec_info::~_loop_vec_info): Delete it.
5806         (cse_and_gimplify_to_preheader): New function.
5807         * tree-vect-slp.c (vect_get_place_in_interleaving_chain): Export.
5808         * tree-vect-stmts.c (vectorizable_store): CSE base and steps.
5809         (vectorizable_load): Likewise.  For grouped stores always base
5810         the IV on the first element.
5811         * tree-vect-loop-manip.c (vect_loop_versioning): Unshare versioning
5812         condition before gimplifying.
5813
5814 2018-02-07  Jakub Jelinek  <jakub@redhat.com>
5815
5816         * tree-eh.c (operation_could_trap_helper_p): Ignore honor_trapv for
5817         *DIV_EXPR and *MOD_EXPR.
5818
5819 2018-02-07  H.J. Lu  <hongjiu.lu@intel.com>
5820
5821         PR target/84248
5822         * config/i386/i386.c (ix86_option_override_internal): Mask out
5823         the CF_SET bit when checking -fcf-protection.
5824
5825 2018-02-07  Tom de Vries  <tom@codesourcery.com>
5826
5827         PR libgomp/84217
5828         * omp-expand.c (expand_oacc_collapse_init): Ensure diff_type is large
5829         enough.
5830
5831 2018-02-07  Richard Biener  <rguenther@suse.de>
5832
5833         PR tree-optimization/84204
5834         * tree-chrec.c (chrec_fold_plus_1): Remove size limiting in
5835         this place.
5836
5837         PR tree-optimization/84205
5838         * graphite-isl-ast-to-gimple.c (binary_op_to_tree): Also
5839         special-case isl_ast_op_zdiv_r.
5840
5841         PR tree-optimization/84223
5842         * graphite-scop-detection.c (gather_bbs::before_dom_children):
5843         Only add conditions from within the region.
5844         (gather_bbs::after_dom_children): Adjust.
5845
5846 2018-02-07  Georg-Johann Lay  <avr@gjlay.de>
5847
5848         PR target/84209
5849         * config/avr/avr.h (GENERAL_REGNO_P, GENERAL_REG_P): New macros.
5850         * config/avr/avr.md: Only post-reload split REG-REG moves if
5851         either register is GENERAL_REG_P.
5852
5853 2018-02-07  Jakub Jelinek  <jakub@redhat.com>
5854
5855         PR tree-optimization/84235
5856         * tree-ssa-scopedtables.c
5857         (avail_exprs_stack::simplify_binary_operation): Fir MINUS_EXPR, punt
5858         if the subtraction is performed in floating point type where NaNs are
5859         honored.  For *DIV_EXPR, punt for ALL_FRACT_MODE_Ps where we can't
5860         build 1.  Formatting fix.
5861
5862 2018-02-06  Jakub Jelinek  <jakub@redhat.com>
5863
5864         PR target/84146
5865         * config/i386/i386.c (rest_of_insert_endbranch): Only skip
5866         NOTE_INSN_CALL_ARG_LOCATION after a call, not anything else,
5867         and skip it regardless of bb boundaries.  Use CALL_P macro,
5868         don't test INSN_P (insn) together with CALL_P or JUMP_P check
5869         unnecessarily, formatting fix.
5870
5871 2018-02-06  Michael Collison  <michael.collison@arm.com>
5872
5873         * config/arm/thumb2.md:
5874         (*thumb2_mov_negscc): Split only if TARGET_THUMB2 && !arm_restrict_it.
5875         (*thumb_mov_notscc): Ditto.
5876
5877 2018-02-06  Michael Meissner  <meissner@linux.vnet.ibm.com>
5878
5879         PR target/84154
5880         * config/rs6000/rs6000.md (su code attribute): Use "u" for
5881         unsigned_fix, not "s".
5882
5883 2018-02-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
5884
5885         * configure.ac (gcc_fn_eh_frame_ro): New function.
5886         (gcc_cv_as_cfi_directive): Check both 32 and 64-bit assembler for
5887         correct .eh_frame permissions.
5888         * configure: Regenerate.
5889
5890 2018-02-06  Andrew Jenner  <andrew@codeourcery.com>
5891
5892         * doc/invoke.texi: Add section for the PowerPC SPE backend. Remove
5893         irrelevant options.
5894
5895 2018-02-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
5896
5897         * config/rs6000/rs6000.c (rs6000_option_override_internal):
5898         Display warning message for -mno-speculate-indirect-jumps.
5899
5900 2018-02-06  Andrew Jenner  <andrew@codesourcery.com>
5901
5902         * config/powerpcspe/powerpcspe.opt: (msimple-fpu, mfpu) Add
5903         Undocumented.
5904         * config/powerpcspe/sysv4.opt (mbit-align): Likewise.
5905
5906 2018-02-06  Aldy Hernandez  <aldyh@redhat.com>
5907
5908         PR tree-optimization/84225
5909         * tree-eh.c (find_trapping_overflow): Only call
5910         operation_no_trapping_overflow when ANY_INTEGRAL_TYPE_P.
5911
5912 2018-02-06  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
5913
5914         PR target/84145
5915         * config/i386/i386.c: Reimplement the check of possible options
5916         -mibt/-mshstk conbination. Change error messages.
5917         * doc/invoke.texi: Fix a typo: remove extra '='.
5918
5919 2018-02-06  Marek Polacek  <polacek@redhat.com>
5920
5921         PR tree-optimization/84228
5922         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Skip debug statements.
5923
5924 2018-02-06  Tamar Christina  <tamar.christina@arm.com>
5925
5926         PR target/82641
5927         * config/arm/arm.c (arm_print_asm_arch_directives): Record already
5928         emitted arch directives.
5929         * config/arm/arm-c.c (arm_cpu_builtins): Undefine __ARM_ARCH and
5930         __ARM_FEATURE_COPROC before changing architectures.
5931
5932 2018-02-06  Richard Biener  <rguenther@suse.de>
5933
5934         * config/i386/i386.c (print_reg): Fix typo.
5935         (ix86_loop_unroll_adjust): Do not unroll beyond the original nunroll.
5936
5937 2018-02-06  Eric Botcazou  <ebotcazou@adacore.com>
5938
5939         * configure: Regenerate.
5940
5941 2018-02-05  Martin Sebor  <msebor@redhat.com>
5942
5943         PR tree-optimization/83369
5944         * tree-ssa-ccp.c (pass_post_ipa_warn::execute): Use %G to print
5945         inlining context.
5946
5947 2018-02-05  Martin Liska  <mliska@suse.cz>
5948
5949         * doc/invoke.texi: Cherry-pick upstream r323995.
5950
5951 2018-02-05  Richard Sandiford  <richard.sandiford@linaro.org>
5952
5953         * ira.c (ira_init_register_move_cost): Adjust comment.
5954
5955 2018-02-05  Martin Liska  <mliska@suse.cz>
5956
5957         PR gcov-profile/84137
5958         * doc/gcov.texi: Fix typo in documentation.
5959
5960 2018-02-05  Martin Liska  <mliska@suse.cz>
5961
5962         PR gcov-profile/83879
5963         * doc/gcov.texi: Document necessity of --dynamic-list-data when
5964         using dlopen functionality.
5965
5966 2018-02-05  Olga Makhotina  <olga.makhotina@intel.com>
5967
5968         * config/i386/avx512dqintrin.h (_mm_mask_range_sd, _mm_maskz_range_sd,
5969         _mm_mask_range_round_sd, _mm_maskz_range_round_sd, _mm_mask_range_ss,
5970         _mm_maskz_range_ss, _mm_mask_range_round_ss,
5971         _mm_maskz_range_round_ss): New intrinsics.
5972         (__builtin_ia32_rangesd128_round)
5973         (__builtin_ia32_rangess128_round): Remove.
5974         (__builtin_ia32_rangesd128_mask_round,
5975         __builtin_ia32_rangess128_mask_round): New builtins.
5976         * config/i386/i386-builtin.def (__builtin_ia32_rangesd128_round,
5977         __builtin_ia32_rangess128_round): Remove.
5978         (__builtin_ia32_rangesd128_mask_round,
5979         __builtin_ia32_rangess128_mask_round): New builtins.
5980         * config/i386/sse.md (ranges<mode><round_saeonly_name>): Renamed to ...
5981         (ranges<mode><mask_scalar_name><round_saeonly_scalar_name>): ... this.
5982         ((match_operand:VF_128 2 "<round_saeonly_nimm_predicate>"
5983         "<round_saeonly_constraint>")): Changed to ...
5984         ((match_operand:VF_128 2 "<round_saeonly_scalar_nimm_predicate>"
5985         "<round_saeonly_scalar_constraint>")): ... this.
5986         ("vrange<ssescalarmodesuffix>\t{%3, <round_saeonly_op4>%2, %1, %0|
5987         %0, %1, %2<round_saeonly_op4>, %3}"): Changed to ...
5988         ("vrange<ssescalarmodesuffix>\t{%3, <round_saeonly_scalar_mask_op4>%2,
5989         %1, %0<mask_scalar_operand4>|%0<mask_scalar_operand4>, %1,
5990         %2<round_saeonly_scalar_mask_op4>, %3}"): ... this.
5991
5992 2018-02-02  Andrew Jenner  <andrew@codesourcery.com>
5993
5994         * config/powerpcspe/powerpcspe.opt: Add Undocumented to irrelevant
5995         options.
5996         * config/powerpcspe/powerpcspe-tables.opt (rs6000_cpu_opt_value):
5997         Remove all values except native, 8540 and 8548.
5998
5999 2018-02-02  H.J. Lu  <hongjiu.lu@intel.com>
6000
6001         * config/i386/i386.c (ix86_output_function_return): Pass
6002         INVALID_REGNUM, instead of -1, as invalid register number to
6003         indirect_thunk_name and output_indirect_thunk.
6004
6005 2018-02-02  Julia Koval  <julia.koval@intel.com>
6006
6007         * config.gcc: Add -march=icelake.
6008         * config/i386/driver-i386.c (host_detect_local_cpu): Detect icelake.
6009         * config/i386/i386-c.c (ix86_target_macros_internal): Handle icelake.
6010         * config/i386/i386.c (processor_costs): Add m_ICELAKE.
6011         (PTA_ICELAKE, PTA_AVX512VNNI, PTA_GFNI, PTA_VAES, PTA_AVX512VBMI2,
6012         PTA_VPCLMULQDQ, PTA_RDPID, PTA_AVX512BITALG): New.
6013         (processor_target_table): Add icelake.
6014         (ix86_option_override_internal): Handle new PTAs.
6015         (get_builtin_code_for_version): Handle icelake.
6016         (M_INTEL_COREI7_ICELAKE): New.
6017         (fold_builtin_cpu): Handle icelake.
6018         * config/i386/i386.h (TARGET_ICELAKE, PROCESSOR_ICELAKE): New.
6019         * doc/invoke.texi: Add -march=icelake.
6020
6021 2018-02-02  Julia Koval  <julia.koval@intel.com>
6022
6023         * config/i386/i386.c (ix86_option_override_internal): Change flags type
6024         to wide_int_bitmask.
6025         * wide-int-bitmask.h: New.
6026
6027 2018-02-02  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
6028
6029         PR target/84066
6030         * config/i386/i386.md: Replace Pmode with word_mode in
6031         builtin_setjmp_setup and builtin_longjmp to support x32.
6032
6033 2018-02-01  Peter Bergner  <bergner@vnet.ibm.com>
6034
6035         PR target/56010
6036         PR target/83743
6037         * config/rs6000/driver-rs6000.c: #include "diagnostic.h".
6038         #include "opts.h".
6039         (rs6000_supported_cpu_names): New static variable.
6040         (linux_cpu_translation_table): Likewise.
6041         (elf_platform) <cpu>: Define new static variable and use it.
6042         Translate kernel AT_PLATFORM name to canonical name if needed.
6043         Error if platform name is unknown.
6044
6045 2018-02-01  Aldy Hernandez  <aldyh@redhat.com>
6046
6047         PR target/84089
6048         * config/pa/predicates.md (base14_operand): Handle E_VOIDmode.
6049
6050 2018-02-01  Jeff Law  <law@redhat.com>
6051
6052         PR target/84128
6053         * config/i386/i386.c (release_scratch_register_on_entry): Add new
6054         OFFSET and RELEASE_VIA_POP arguments.  Use SP+OFFSET to restore
6055         the scratch if RELEASE_VIA_POP is false.
6056         (ix86_adjust_stack_and_probe_stack_clash): Un-constify SIZE.
6057         If we have to save a temporary register, decrement SIZE appropriately.
6058         Pass new arguments to release_scratch_register_on_entry.
6059         (ix86_adjust_stack_and_probe): Likewise.
6060         (ix86_emit_probe_stack_range): Pass new arguments to
6061         release_scratch_register_on_entry.
6062
6063 2018-02-01  Uros Bizjak  <ubizjak@gmail.com>
6064
6065         PR rtl-optimization/84157
6066         * combine.c (change_zero_ext): Use REG_P predicate in
6067         front of HARD_REGISTER_P predicate.
6068
6069 2018-02-01  Georg-Johann Lay  <avr@gjlay.de>
6070
6071         * config/avr/avr.c (avr_option_override): Move disabling of
6072         -fdelete-null-pointer-checks to...
6073         * common/config/avr/avr-common.c (avr_option_optimization_table):
6074         ...here.
6075
6076 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
6077
6078         PR tree-optimization/81635
6079         * tree-data-ref.c (split_constant_offset_1): For types that
6080         wrap on overflow, try to use range info to prove that wrapping
6081         cannot occur.
6082
6083 2018-02-01  Renlin Li  <renlin.li@arm.com>
6084
6085         PR target/83370
6086         * config/aarch64/aarch64.c (aarch64_class_max_nregs): Handle
6087         TAILCALL_ADDR_REGS.
6088         (aarch64_register_move_cost): Likewise.
6089         * config/aarch64/aarch64.h (reg_class): Rename CALLER_SAVE_REGS to
6090         TAILCALL_ADDR_REGS.
6091         (REG_CLASS_NAMES): Likewise.
6092         (REG_CLASS_CONTENTS): Rename CALLER_SAVE_REGS to
6093         TAILCALL_ADDR_REGS. Remove IP registers.
6094         * config/aarch64/aarch64.md (Ucs): Update register constraint.
6095
6096 2018-02-01  Richard Biener  <rguenther@suse.de>
6097
6098         * domwalk.h (dom_walker::dom_walker): Add additional constructor
6099         for specifying RPO order and allow NULL for that.
6100         * domwalk.c (dom_walker::dom_walker): Likewise.
6101         (dom_walker::walk): Handle NULL RPO order.
6102         * tree-into-ssa.c (rewrite_dom_walker): Do not walk dom children
6103         in RPO order.
6104         (rewrite_update_dom_walker): Likewise.
6105         (mark_def_dom_walker): Likewise.
6106
6107 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
6108
6109         * config/aarch64/aarch64-protos.h (aarch64_split_sve_subreg_move)
6110         (aarch64_maybe_expand_sve_subreg_move): Declare.
6111         * config/aarch64/aarch64.md (UNSPEC_REV_SUBREG): New unspec.
6112         * config/aarch64/predicates.md (aarch64_any_register_operand): New
6113         predicate.
6114         * config/aarch64/aarch64-sve.md (mov<mode>): Optimize subreg moves
6115         that are semantically a reverse operation.
6116         (*aarch64_sve_mov<mode>_subreg_be): New pattern.
6117         * config/aarch64/aarch64.c (aarch64_maybe_expand_sve_subreg_move):
6118         (aarch64_replace_reg_mode, aarch64_split_sve_subreg_move): New
6119         functions.
6120         (aarch64_can_change_mode_class): For big-endian, forbid changes
6121         between two SVE modes if they have different element sizes.
6122
6123 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
6124
6125         * config/aarch64/aarch64.c (aarch64_expand_sve_const_vector): Prefer
6126         the TImode handling for big-endian targets.
6127
6128 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
6129
6130         * config/aarch64/aarch64-sve.md (sve_ld1rq): Replace with...
6131         (*sve_ld1rq<Vesize>): ... this new pattern.  Handle all element sizes,
6132         not just bytes.
6133         * config/aarch64/aarch64.c (aarch64_expand_sve_widened_duplicate):
6134         Remove BSWAP handing for big-endian targets and use the form of
6135         LD1RQ appropariate for the mode.
6136
6137 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
6138
6139         * config/aarch64/aarch64.c (aarch64_simd_valid_immediate): Handle
6140         all CONST_VECTOR_DUPLICATE_P vectors, not just those with a single
6141         duplicated element.
6142
6143 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
6144
6145         PR tearget/83845
6146         * config/aarch64/aarch64.c (aarch64_secondary_reload): Tighten
6147         check for operands that need to go through aarch64_sve_reload_be.
6148
6149 2018-02-01  Jakub Jelinek  <jakub@redhat.com>
6150
6151         PR tree-optimization/81661
6152         PR tree-optimization/84117
6153         * tree-eh.h (rewrite_to_non_trapping_overflow): Declare.
6154         * tree-eh.c: Include gimplify.h.
6155         (find_trapping_overflow, replace_trapping_overflow,
6156         rewrite_to_non_trapping_overflow): New functions.
6157         * tree-vect-loop.c: Include tree-eh.h.
6158         (vect_get_loop_niters): Use rewrite_to_non_trapping_overflow.
6159         * tree-data-ref.c: Include tree-eh.h.
6160         (get_segment_min_max): Use rewrite_to_non_trapping_overflow.
6161
6162 2018-01-31  Uros Bizjak  <ubizjak@gmail.com>
6163
6164         PR rtl-optimization/84123
6165         * combine.c (change_zero_ext): Check if hard register satisfies
6166         can_change_dest_mode before calling gen_lowpart_SUBREG.
6167
6168 2018-01-31  Vladimir Makarov  <vmakarov@redhat.com>
6169
6170         PR target/82444
6171         * ira.c (ira_init_register_move_cost): Remove assert.
6172
6173 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
6174
6175         PR rtl-optimization/84071
6176         * doc/tm.texi.in (WORD_REGISTER_OPERATIONS): Add explicit case.
6177         * doc/tm.texi: Regenerate.
6178
6179 2018-01-31  Richard Biener  <rguenther@suse.de>
6180
6181         PR tree-optimization/84132
6182         * tree-data-ref.c (analyze_miv_subscript): Properly
6183         check whether evolution_function_is_affine_multivariate_p
6184         before calling gcd_of_steps_may_divide_p.
6185
6186 2018-01-31  Julia Koval  <julia.koval@intel.com>
6187
6188         PR target/83618
6189         * config/i386/i386.c (ix86_expand_builtin): Handle IX86_BUILTIN_RDPID.
6190         * config/i386/i386.md (rdpid_rex64) New.
6191         (rdpid): Make 32bit only.
6192
6193 2018-01-29  Aldy Hernandez  <aldyh@redhat.com>
6194
6195         PR lto/84105
6196         * tree-pretty-print.c (dump_generic_node): Handle a TYPE_NAME with
6197         an IDENTIFIER_NODE for FUNCTION_TYPE's.
6198
6199 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
6200
6201         Revert
6202         2018-01-12  Eric Botcazou  <ebotcazou@adacore.com>
6203
6204         * config/sparc/sparc.md (vxworks_load_got): Set the GOT register.
6205
6206 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
6207
6208         PR rtl-optimization/84071
6209         * combine.c (record_dead_and_set_regs_1): Record the source unmodified
6210         for a paradoxical SUBREG on a WORD_REGISTER_OPERATIONS target.
6211
6212 2018-01-31  Claudiu Zissulescu  <claziss@synopsys.com>
6213
6214         * config/arc/arc.c (arc_handle_aux_attribute): New function.
6215         (arc_attribute_table): Add 'aux' attribute.
6216         (arc_in_small_data_p): Consider aux like variables.
6217         (arc_is_aux_reg_p): New function.
6218         (arc_asm_output_aligned_decl_local): Ignore 'aux' like variables.
6219         (arc_get_aux_arg): New function.
6220         (prepare_move_operands): Handle aux-register access.
6221         (arc_handle_aux_attribute): New function.
6222         * doc/extend.texi (ARC Variable attributes): Add subsection.
6223
6224 2018-01-31  Claudiu Zissulescu  <claziss@synopsys.com>
6225
6226         * config/arc/arc-protos.h (arc_is_uncached_mem_p): Function proto.
6227         * config/arc/arc.c (arc_handle_uncached_attribute): New function.
6228         (arc_attribute_table): Add 'uncached' attribute.
6229         (arc_print_operand): Print '.di' flag for uncached memory
6230         accesses.
6231         (arc_in_small_data_p): Do not consider for small data the uncached
6232         types.
6233         (arc_is_uncached_mem_p): New function.
6234         * config/arc/predicates.md (compact_store_memory_operand): Check
6235         for uncached memory accesses.
6236         (nonvol_nonimm_operand): Likewise.
6237         * gcc/doc/extend.texi (ARC Type Attribute): New subsection.
6238
6239 2018-01-31  Jakub Jelinek  <jakub@redhat.com>
6240
6241         PR c/84100
6242         * common.opt (falign-functions=, falign-jumps=, falign-labels=,
6243         falign-loops=): Add Optimization flag.
6244
6245 2018-01-30  Jeff Law  <law@redhat.com>
6246
6247         PR target/84064
6248         * i386.c (ix86_adjust_stack_and_probe_stack_clash): New argument
6249         INT_REGISTERS_SAVED.  Check it prior to calling
6250         get_scratch_register_on_entry.
6251         (ix86_adjust_stack_and_probe): Similarly.
6252         (ix86_emit_probe_stack_range): Similarly.
6253         (ix86_expand_prologue): Corresponding changes.
6254
6255 2018-01-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
6256
6257         PR target/40411
6258         * config/sol2.h (STARTFILE_ARCH_SPEC): Use -std=c*,
6259         -std=iso9899:199409 instead of -pedantic to select values-Xc.o.
6260
6261 2018-01-30  Vladimir Makarov  <vmakarov@redhat.com>
6262
6263         PR target/84112
6264         * lra-constraints.c (curr_insn_transform): Process AND in the
6265         address.
6266
6267 2018-01-30  Jakub Jelinek  <jakub@redhat.com>
6268
6269         PR rtl-optimization/83986
6270         * sched-deps.c (sched_analyze_insn): For frame related insns, add anti
6271         dependence against last_pending_memory_flush in addition to
6272         pending_jump_insns.
6273
6274 2018-01-30  Alexandre Oliva  <aoliva@redhat.com>
6275
6276         PR tree-optimization/81611
6277         * tree-ssa-dom.c (simple_iv_increment_p): Skip intervening
6278         copies.
6279
6280 2018-01-30  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
6281
6282         PR target/83758
6283         * config/rs6000/rs6000.c (rs6000_internal_arg_pointer): Only return
6284         a reg rtx.
6285
6286 2018-01-30  Richard Biener  <rguenther@suse.de>
6287             Jakub Jelinek  <jakub@redhat.com>
6288
6289         PR tree-optimization/84111
6290         * tree-ssa-loop-ivcanon.c (tree_unroll_loops_completely_1): Skip
6291         inner loops added during recursion, as they don't have up-to-date
6292         SSA form.
6293
6294 2018-01-30  Jan Hubicka  <hubicka@ucw.cz>
6295
6296         PR ipa/81360
6297         * ipa-inline.c (can_inline_edge_p): Break out late tests to...
6298         (can_inline_edge_by_limits_p): ... here.
6299         (can_early_inline_edge_p, check_callers,
6300         update_caller_keys, update_callee_keys, recursive_inlining,
6301         add_new_edges_to_heap, speculation_useful_p,
6302         inline_small_functions,
6303         inline_small_functions, flatten_function,
6304         inline_to_all_callers_1): Update.
6305
6306 2018-01-30  Jan Hubicka  <hubicka@ucw.cz>
6307
6308         * profile-count.c (profile_count::combine_with_ipa_count): Handle
6309         zeros correctly.
6310
6311 2018-01-30  Richard Biener  <rguenther@suse.de>
6312
6313         PR tree-optimization/83008
6314         * tree-vect-slp.c (vect_analyze_slp_cost_1): Properly cost
6315         invariant and constant vector uses in stmts when they need
6316         more than one stmt.
6317
6318 2018-01-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
6319
6320         PR bootstrap/84017
6321         * configure.ac (gcc_cv_as_shf_merge): Disable on Solaris 10/x86.
6322         * configure: Regenerate.
6323
6324 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
6325
6326         * config/aarch64/aarch64-sve.md (*vec_extract<mode><Vel>_0): New
6327         pattern.
6328         (*vec_extract<mode><Vel>_v128): Require a nonzero lane number.
6329         Use gen_rtx_REG rather than gen_lowpart.
6330
6331 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
6332
6333         * lra-constraints.c (match_reload): Use subreg_lowpart_offset
6334         rather than 0 when creating partial subregs.
6335
6336 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
6337
6338         * vec-perm-indices.c (vec_perm_indices::series_p): Give examples
6339         of usage.
6340
6341 2018-01-29  Michael Meissner  <meissner@linux.vnet.ibm.com>
6342
6343         PR target/81550
6344         * config/rs6000/rs6000.c (rs6000_setup_reg_addr_masks): If DFmode
6345         and SFmode can go in Altivec registers (-mcpu=power7 for DFmode,
6346         -mcpu=power8 for SFmode) don't set the PRE_INCDEC or PRE_MODIFY
6347         flags.  This restores the settings used before the 2017-07-24.
6348         Turning off pre increment/decrement/modify allows IVOPTS to
6349         optimize DF/SF loops where the index is an int.
6350
6351 2018-01-29  Richard Biener  <rguenther@suse.de>
6352             Kelvin Nilsen  <kelvin@gcc.gnu.org>
6353
6354         PR bootstrap/80867
6355         * tree-vect-stmts.c (vectorizable_call): Don't call
6356         targetm.vectorize_builtin_md_vectorized_function if callee is
6357         NULL.
6358
6359 2018-01-22  Carl Love  <cel@us.ibm.com>
6360
6361         * doc/extend.tex: Fix typo in second arg in
6362         __builtin_bcdadd_{lt|eq|gt|ov} and __builtin_bcdsub_{lt|eq|gt|ov}.
6363
6364 2018-01-29  Richard Biener  <rguenther@suse.de>
6365
6366         PR tree-optimization/84086
6367         * tree-ssanames.c: Include cfgloop.h and tree-scalar-evolution.h.
6368         (flush_ssaname_freelist): When SSA names were released reset
6369         the SCEV hash table.
6370
6371 2018-01-29  Richard Biener  <rguenther@suse.de>
6372
6373         PR tree-optimization/84057
6374         * tree-ssa-loop-ivcanon.c (unloop_loops): Deal with already
6375         removed paths when removing edges.
6376
6377 2018-01-27  H.J. Lu  <hongjiu.lu@intel.com>
6378
6379         * doc/invoke.texi: Replace -mfunction-return==@var{choice} with
6380         -mfunction-return=@var{choice}.
6381
6382 2018-01-27  Bernd Edlinger  <bernd.edlinger@hotmail.de>
6383
6384         PR diagnostic/84034
6385         * diagnostic-show-locus.c (get_line_width_without_trailing_whitespace):
6386         Handle CR like TAB.
6387         (layout::print_source_line): Likewise.
6388         (test_get_line_width_without_trailing_whitespace): Add test cases.
6389
6390 2018-01-27  Jakub Jelinek  <jakub@redhat.com>
6391
6392         PR middle-end/84040
6393         * sched-deps.c (sched_macro_fuse_insns): Return immediately for
6394         debug insns.
6395
6396 2018-01-26  Jim Wilson  <jimw@sifive.com>
6397
6398         * config/riscv/riscv.h (MAX_FIXED_MODE_SIZE): New.
6399
6400         * config/riscv/elf.h (LIB_SPEC): Don't include -lgloss when nosys.specs
6401         specified.
6402
6403 2018-01-26  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
6404
6405         * config/aarch64/aarch64.md: Add peepholes for CMP + SUB -> SUBS
6406         and CMP + SUB-immediate -> SUBS.
6407
6408 2018-01-26  Martin Sebor  <msebor@redhat.com>
6409
6410         PR tree-optimization/83896
6411         * tree-ssa-strlen.c (get_string_len): Rename...
6412         (get_string_cst_length): ...to this.  Return HOST_WIDE_INT.
6413         Avoid assuming length is constant.
6414         (handle_char_store): Use HOST_WIDE_INT for string length.
6415
6416 2018-01-26  Uros Bizjak  <ubizjak@gmail.com>
6417
6418         PR target/81763
6419         * config/i386/i386.md (*andndi3_doubleword): Add earlyclobber
6420         to (=&r,r,rm) alternative. Add (=r,0,rm) and (=r,r,0) alternatives.
6421
6422 2018-01-26  Richard Biener  <rguenther@suse.de>
6423
6424         PR rtl-optimization/84003
6425         * dse.c (record_store): Only record redundant stores when
6426         the earlier store aliases at least all accesses the later one does.
6427
6428 2018-01-26  Jakub Jelinek  <jakub@redhat.com>
6429
6430         PR rtl-optimization/83985
6431         * dce.c (deletable_insn_p): Return false for separate shrink wrapping
6432         REG_CFA_RESTORE insns.
6433         (delete_unmarked_insns): Don't ignore separate shrink wrapping
6434         REG_CFA_RESTORE insns here.
6435
6436         PR c/83989
6437         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Don't
6438         use SSA_NAME_VAR as base for SSA_NAMEs with non-NULL SSA_NAME_VAR.
6439
6440 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
6441
6442         * config/arc/arc-arch.h (arc_tune_attr): Add ARC_TUNE_CORE_3.
6443         * config/arc/arc.c (arc_sched_issue_rate): Use ARC_TUNE_... .
6444         (arc_init): Likewise.
6445         (arc_override_options): Likewise.
6446         (arc_file_start): Choose Tag_ARC_CPU_variation based on arc_tune
6447         value.
6448         (hwloop_fail): Use TARGET_DBNZ when we want to check for dbnz insn
6449         support.
6450         * config/arc/arc.h (TARGET_DBNZ): Define.
6451         * config/arc/arc.md (attr tune): Add core_3, use ARC_TUNE_... to
6452         properly set the tune attribute.
6453         (dbnz): Use TARGET_DBNZ guard.
6454         * config/arc/arc.opt (mtune): Add core3 option.
6455
6456 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
6457
6458         * config/arc/arc.c (arc_delegitimize_address_0): Refactored to
6459         recognize new pic like addresses.
6460         (arc_delegitimize_address): Clean up.
6461
6462 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
6463
6464         * config/arc/arc-arches.def: Option mrf16 valid for all
6465         architectures.
6466         * config/arc/arc-c.def (__ARC_RF16__): New predefined macro.
6467         * config/arc/arc-cpus.def (em_mini): New cpu with rf16 on.
6468         * config/arc/arc-options.def (FL_RF16): Add mrf16 option.
6469         * config/arc/arc-tables.opt: Regenerate.
6470         * config/arc/arc.c (arc_conditional_register_usage): Handle
6471         reduced register file case.
6472         (arc_file_start): Set must have build attributes.
6473         * config/arc/arc.h (MAX_ARC_PARM_REGS): Conditional define using
6474         mrf16 option value.
6475         * config/arc/arc.opt (mrf16): Add new option.
6476         * config/arc/elf.h (ATTRIBUTE_PCS): Define.
6477         * config/arc/genmultilib.awk: Handle new mrf16 option.
6478         * config/arc/linux.h (ATTRIBUTE_PCS): Define.
6479         * config/arc/t-multilib: Regenerate.
6480         * doc/invoke.texi (ARC Options): Document mrf16 option.
6481
6482 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
6483
6484         * config/arc/arc-protos.h: Add arc_is_secure_call_p proto.
6485         * config/arc/arc.c (arc_handle_secure_attribute): New function.
6486         (arc_attribute_table): Add 'secure_call' attribute.
6487         (arc_print_operand): Print secure call operand.
6488         (arc_function_ok_for_sibcall): Don't optimize tail calls when
6489         secure.
6490         (arc_is_secure_call_p): New function.  * config/arc/arc.md
6491         (call_i): Add support for sjli instruction.
6492         (call_value_i): Likewise.
6493         * config/arc/constraints.md (Csc): New constraint.
6494
6495 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
6496             John Eric Martin  <John.Martin@emmicro-us.com>
6497
6498         * config/arc/arc-protos.h: Add arc_is_jli_call_p proto.
6499         * config/arc/arc.c (_arc_jli_section): New struct.
6500         (arc_jli_section): New type.
6501         (rc_jli_sections): New static variable.
6502         (arc_handle_jli_attribute): New function.
6503         (arc_attribute_table): Add jli_always and jli_fixed attribute.
6504         (arc_file_end): New function.
6505         (TARGET_ASM_FILE_END): Define.
6506         (arc_print_operand): Reuse 'S' letter for JLI output instruction.
6507         (arc_add_jli_section): New function.
6508         (jli_call_scan): Likewise.
6509         (arc_reorg): Call jli_call_scan.
6510         (arc_output_addsi): Remove 'S' from printing asm operand.
6511         (arc_is_jli_call_p): New function.
6512         * config/arc/arc.md (movqi_insn): Remove 'S' from printing asm
6513         operand.
6514         (movhi_insn): Likewise.
6515         (movsi_insn): Likewise.
6516         (movsi_set_cc_insn): Likewise.
6517         (loadqi_update): Likewise.
6518         (load_zeroextendqisi_update): Likewise.
6519         (load_signextendqisi_update): Likewise.
6520         (loadhi_update): Likewise.
6521         (load_zeroextendhisi_update): Likewise.
6522         (load_signextendhisi_update): Likewise.
6523         (loadsi_update): Likewise.
6524         (loadsf_update): Likewise.
6525         (movsicc_insn): Likewise.
6526         (bset_insn): Likewise.
6527         (bxor_insn): Likewise.
6528         (bclr_insn): Likewise.
6529         (bmsk_insn): Likewise.
6530         (bicsi3_insn): Likewise.
6531         (cmpsi_cc_c_insn): Likewise.
6532         (movsi_ne): Likewise.
6533         (movsi_cond_exec): Likewise.
6534         (clrsbsi2): Likewise.
6535         (norm_f): Likewise.
6536         (normw): Likewise.
6537         (swap): Likewise.
6538         (divaw): Likewise.
6539         (flag): Likewise.
6540         (sr): Likewise.
6541         (kflag): Likewise.
6542         (ffs): Likewise.
6543         (ffs_f): Likewise.
6544         (fls): Likewise.
6545         (call_i): Remove 'S' asm letter, add jli instruction.
6546         (call_value_i): Likewise.
6547         * config/arc/arc.op (mjli-always): New option.
6548         * config/arc/constraints.md (Cji): New constraint.
6549         * config/arc/fpx.md (addsf3_fpx): Remove 'S' from printing asm
6550         operand.
6551         (subsf3_fpx): Likewise.
6552         (mulsf3_fpx): Likewise.
6553         * config/arc/simdext.md (vendrec_insn): Remove 'S' from printing
6554         asm operand.
6555         * doc/extend.texi (ARC): Document 'jli-always' and 'jli-fixed'
6556         function attrbutes.
6557         * doc/invoke.texi (ARC): Document mjli-always option.
6558
6559 2018-01-26  Sebastian Perta  <sebastian.perta@renesas.com>
6560
6561         * config/rl78/rl78.c (rl78_addsi3_internal): If operand 2 is const
6562         avoid addition with 0 and use incw and decw where possible.
6563
6564 2018-01-26  Richard Biener  <rguenther@suse.de>
6565
6566         PR tree-optimization/81082
6567         * fold-const.c (fold_plusminus_mult_expr): Do not perform the
6568         association if it requires casting to unsigned.
6569         * match.pd ((A * C) +- (B * C) -> (A+-B)): New patterns derived
6570         from fold_plusminus_mult_expr to catch important cases late when
6571         range info is available.
6572
6573 2018-01-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
6574
6575         * config/i386/sol2.h (USE_HIDDEN_LINKONCE): Remove.
6576         * configure.ac (hidden_linkonce): New test.
6577         * configure: Regenerate.
6578         * config.in: Regenerate.
6579
6580 2018-01-26  Julia Koval  <julia.koval@intel.com>
6581
6582         * config/i386/avx512bitalgintrin.h (_mm512_bitshuffle_epi64_mask,
6583         _mm512_mask_bitshuffle_epi64_mask, _mm256_bitshuffle_epi64_mask,
6584         _mm256_mask_bitshuffle_epi64_mask, _mm_bitshuffle_epi64_mask,
6585         _mm_mask_bitshuffle_epi64_mask): Fix type.
6586         * config/i386/i386-builtin-types.def (UHI_FTYPE_V2DI_V2DI_UHI,
6587         USI_FTYPE_V4DI_V4DI_USI): Remove.
6588         * config/i386/i386-builtin.def (__builtin_ia32_vpshufbitqmb512_mask,
6589         __builtin_ia32_vpshufbitqmb256_mask,
6590         __builtin_ia32_vpshufbitqmb128_mask): Fix types.
6591         * config/i386/i386.c (ix86_expand_args_builtin): Remove old types.
6592         * config/i386/sse.md (VI1_AVX512VLBW): Change types.
6593
6594 2018-01-26  Alan Modra  <amodra@gmail.com>
6595
6596         PR target/84033
6597         * config/rs6000/rs6000-p8swap.c (rtx_is_swappable_p): Exclude
6598         UNSPEC_VBPERMQ.  Sort other unspecs.
6599
6600 2018-01-25  David Edelsohn  <dje.gcc@gmail.com>
6601
6602         * doc/invoke.texi (PowerPC Options): Document 'native' cpu type.
6603
6604 2018-01-25  Jan Hubicka  <hubicka@ucw.cz>
6605
6606         PR middle-end/83055
6607         * predict.c (drop_profile): Do not push/pop cfun; update also
6608         node->count.
6609         (handle_missing_profiles): Fix logic looking for zero profiles.
6610
6611 2018-01-25  Jakub Jelinek  <jakub@redhat.com>
6612
6613         PR middle-end/83977
6614         * ipa-fnsummary.c (compute_fn_summary): Clear can_change_signature
6615         on functions with #pragma omp declare simd or functions with simd
6616         attribute.
6617         * omp-simd-clone.c (expand_simd_clones): Revert 2018-01-24 change.
6618         * config/i386/i386.c (ix86_simd_clone_compute_vecsize_and_simdlen):
6619         Remove trailing \n from warning_at calls.
6620
6621 2018-01-25  Tom de Vries  <tom@codesourcery.com>
6622
6623         PR target/84028
6624         * config/nvptx/nvptx.c (nvptx_single): Add exit insn after noreturn call
6625         for neutered workers.
6626
6627 2018-01-24  Joseph Myers  <joseph@codesourcery.com>
6628
6629         PR target/68467
6630         * config/m68k/m68k.c (m68k_promote_function_mode): New function.
6631         (TARGET_PROMOTE_FUNCTION_MODE): New macro.
6632
6633 2018-01-24  Jeff Law  <law@redhat.com>
6634
6635         PR target/83994
6636         * i386.c (get_probe_interval): Move to earlier point.
6637         (ix86_compute_frame_layout): If -fstack-clash-protection and
6638         the frame is larger than the probe interval, then use pushes
6639         to save registers rather than reg->mem moves.
6640         (ix86_expand_prologue): Remove conditional for int_registers_saved
6641         assertion.
6642
6643 2018-01-24  Vladimir Makarov  <vmakarov@redhat.com>
6644
6645         PR target/84014
6646         * ira-build.c (setup_min_max_allocno_live_range_point): Set up
6647         min/max for never referenced object.
6648
6649 2018-01-24  Jakub Jelinek  <jakub@redhat.com>
6650
6651         PR middle-end/83977
6652         * tree.c (free_lang_data_in_decl): Don't clear DECL_ABSTRACT_ORIGIN
6653         here.
6654         * omp-low.c (create_omp_child_function): Remove "omp declare simd"
6655         attributes from DECL_ATTRIBUTES (decl) without affecting
6656         DECL_ATTRIBUTES (current_function_decl).
6657         * omp-simd-clone.c (expand_simd_clones): Ignore DECL_ARTIFICIAL
6658         functions with non-NULL DECL_ABSTRACT_ORIGIN.
6659
6660 2018-01-24  Richard Sandiford  <richard.sandiford@linaro.org>
6661
6662         PR tree-optimization/83979
6663         * fold-const.c (fold_comparison): Use constant_boolean_node
6664         instead of boolean_{true,false}_node.
6665
6666 2018-01-24  Jan Hubicka  <hubicka@ucw.cz>
6667
6668         * ipa-profile.c (ipa_propagate_frequency_1): Fix logic skipping calls
6669         with zero counts.
6670
6671 2018-01-24  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
6672
6673         * config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
6674         Simplify the clause that sets the length attribute.
6675         (*call_value_indirect_nonlocal_sysv<mode>): Likewise.
6676         (*sibcall_nonlocal_sysv<mode>): Clean up code block; simplify the
6677         clause that sets the length attribute.
6678         (*sibcall_value_nonlocal_sysv<mode>): Likewise.
6679
6680 2018-01-24  Tom de Vries  <tom@codesourcery.com>
6681
6682         PR target/83589
6683         * config/nvptx/nvptx.c (WORKAROUND_PTXJIT_BUG_2): Define to 1.
6684         (nvptx_pc_set, nvptx_condjump_label): New function. Copy from jump.c.
6685         Add strict parameter.
6686         (prevent_branch_around_nothing): Insert dummy insn between branch to
6687         label and label with no ptx insn inbetween.
6688         * config/nvptx/nvptx.md (define_insn "fake_nop"): New insn.
6689
6690 2018-01-24  Tom de Vries  <tom@codesourcery.com>
6691
6692         PR target/81352
6693         * config/nvptx/nvptx.c (nvptx_single): Add exit insn after noreturn call
6694         for neutered threads in warp.
6695         * config/nvptx/nvptx.md (define_insn "exit"): New insn.
6696
6697 2018-01-24  Richard Biener  <rguenther@suse.de>
6698
6699         PR tree-optimization/83176
6700         * tree-chrec.c (chrec_fold_plus_1): Handle (signed T){(T) .. }
6701         operands.
6702
6703 2018-01-24  Richard Biener  <rguenther@suse.de>
6704
6705         PR tree-optimization/82819
6706         * graphite-isl-ast-to-gimple.c (binary_op_to_tree): Avoid
6707         code generating pluses that are no-ops in the target precision.
6708
6709 2018-01-24  Richard Biener  <rguenther@suse.de>
6710
6711         PR middle-end/84000
6712         * tree-cfg.c (replace_loop_annotate): Handle annot_expr_parallel_kind.
6713
6714 2018-01-23  Jan Hubicka  <hubicka@ucw.cz>
6715
6716         * cfgcleanup.c (try_crossjump_to_edge): Use combine_with_count
6717         to merge probabilities.
6718         * predict.c (probably_never_executed): Also mark as cold functions
6719         with global 0 profile and guessed local profile.
6720         * profile-count.c (profile_probability::combine_with_count): New
6721         member function.
6722         * profile-count.h (profile_probability::operator*,
6723         profile_probability::operator*=, profile_probability::operator/,
6724         profile_probability::operator/=): Reduce precision to adjusted
6725         and set value to guessed on contradictory divisions.
6726         (profile_probability::combine_with_freq): Remove.
6727         (profile_probability::combine_wiht_count): Declare.
6728         (profile_count::force_nonzero):: Set to adjusted.
6729         (profile_count::probability_in):: Set quality to adjusted.
6730         * tree-ssa-tail-merge.c (replace_block_by): Use
6731         combine_with_count.
6732
6733 2018-01-23  Andrew Waterman  <andrew@sifive.com>
6734             Jim Wilson  <jimw@sifive.com>
6735
6736         * config/riscv/riscv.c (riscv_stack_boundary): New.
6737         (riscv_option_override): Set riscv_stack_boundary.  Handle
6738         riscv_preferred_stack_boundary_arg.
6739         * config/riscv/riscv.h (MIN_STACK_BOUNDARY, ABI_STACK_BOUNDARY): New.
6740         (BIGGEST_ALIGNMENT): Set to STACK_BOUNDARY.
6741         (STACK_BOUNDARY): Set to riscv_stack_boundary.
6742         (RISCV_STACK_ALIGN): Use STACK_BOUNDARY.
6743         * config/riscv/riscv.opt (mpreferred-stack-boundary): New.
6744         * doc/invoke.tex (RISC-V Options): Add -mpreferred-stack-boundary.
6745
6746 2018-01-23  H.J. Lu  <hongjiu.lu@intel.com>
6747
6748         PR target/83905
6749         * config/i386/i386.c (ix86_expand_prologue): Use cost reference
6750         of struct ix86_frame.
6751         (ix86_expand_epilogue): Likewise.  Add a local variable for
6752         the reg_save_offset field in struct ix86_frame.
6753
6754 2018-01-23  Bin Cheng  <bin.cheng@arm.com>
6755
6756         PR tree-optimization/82604
6757         * tree-loop-distribution.c (enum partition_kind): New enum item
6758         PKIND_PARTIAL_MEMSET.
6759         (partition_builtin_p): Support above new enum item.
6760         (generate_code_for_partition): Ditto.
6761         (compute_access_range): Differentiate cases that equality can be
6762         proven at all loops, the innermost loops or no loops.
6763         (classify_builtin_st, classify_builtin_ldst): Adjust call to above
6764         function.  Set PKIND_PARTIAL_MEMSET for partition appropriately.
6765         (finalize_partitions, distribute_loop): Don't fuse partition of
6766         PKIND_PARTIAL_MEMSET kind when distributing 3-level loop nest.
6767         (prepare_perfect_loop_nest): Distribute 3-level loop nest only if
6768         parloop is enabled.
6769
6770 2018-01-23  Martin Liska  <mliska@suse.cz>
6771
6772         * predict.def (PRED_INDIR_CALL): Set probability to PROB_EVEN in
6773         order to ignore the predictor.
6774         (PRED_POLYMORPHIC_CALL): Likewise.
6775         (PRED_RECURSIVE_CALL): Likewise.
6776
6777 2018-01-23  Martin Liska  <mliska@suse.cz>
6778
6779         * tree-profile.c (tree_profiling): Print function header to
6780         aware reader which function we are working on.
6781         * value-prof.c (gimple_find_values_to_profile): Do not print
6782         not interesting value histograms.
6783
6784 2018-01-23  Martin Liska  <mliska@suse.cz>
6785
6786         * profile-count.h (enum profile_quality): Add
6787         profile_uninitialized as the first value. Do not number values
6788         as they are zero based.
6789         (profile_count::verify): Update sanity check.
6790         (profile_probability::verify): Likewise.
6791
6792 2018-01-23  Nathan Sidwell  <nathan@acm.org>
6793
6794         * doc/invoke.texi (ffor-scope): Deprecate.
6795
6796 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
6797
6798         PR tree-optimization/83510
6799         * domwalk.c (set_all_edges_as_executable): New function.
6800         (dom_walker::dom_walker): Convert bool param
6801         "skip_unreachable_blocks" to enum reachability.  Move setup of
6802         edge flags to set_all_edges_as_executable and only do it when
6803         reachability is REACHABLE_BLOCKS.
6804         * domwalk.h (enum dom_walker::reachability): New enum.
6805         (dom_walker::dom_walker): Convert bool param
6806         "skip_unreachable_blocks" to enum reachability.
6807         (set_all_edges_as_executable): New decl.
6808         * graphite-scop-detection.c  (gather_bbs::gather_bbs): Convert
6809         from false for "skip_unreachable_blocks" to ALL_BLOCKS for
6810         "reachability".
6811         * tree-ssa-dom.c (dom_opt_dom_walker::dom_opt_dom_walker): Likewise,
6812         but converting true to REACHABLE_BLOCKS.
6813         * tree-ssa-sccvn.c (sccvn_dom_walker::sccvn_dom_walker): Likewise.
6814         * tree-vrp.c
6815         (check_array_bounds_dom_walker::check_array_bounds_dom_walker):
6816         Likewise, but converting it to REACHABLE_BLOCKS_PRESERVING_FLAGS.
6817         (vrp_dom_walker::vrp_dom_walker): Likewise, but converting it to
6818         REACHABLE_BLOCKS.
6819         (vrp_prop::vrp_finalize): Call set_all_edges_as_executable
6820         if check_all_array_refs will be called.
6821
6822 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
6823
6824         * tree.c (selftest::test_location_wrappers): Add more test
6825         coverage.
6826
6827 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
6828
6829         * sbitmap.c (selftest::test_set_range): Fix memory leaks.
6830         (selftest::test_bit_in_range): Likewise.
6831
6832 2018-01-23  Richard Sandiford  <richard.sandiford@linaro.org>
6833
6834         PR testsuite/83888
6835         * doc/sourcebuild.texi (vect_float): Say that the selector
6836         only describes the situation when -funsafe-math-optimizations is on.
6837         (vect_float_strict): Document.
6838
6839 2018-01-23  Richard Sandiford  <richard.sandiford@linaro.org>
6840
6841         PR tree-optimization/83965
6842         * tree-vect-patterns.c (vect_reassociating_reduction_p): New function.
6843         (vect_recog_dot_prod_pattern, vect_recog_sad_pattern): Use it
6844         instead of checking only for a reduction.
6845         (vect_recog_widen_sum_pattern): Likewise.
6846
6847 2018-01-23  Jan Hubicka  <hubicka@ucw.cz>
6848
6849         * predict.c (probably_never_executed): Only use precise profile info.
6850         (compute_function_frequency): Skip after inlining hack since we now
6851         have quality checking.
6852
6853 2018-01-23  Jan Hubicka  <hubicka@ucw.cz>
6854
6855         * profile-count.h (profile_probability::very_unlikely,
6856         profile_probability::unlikely, profile_probability::even): Set
6857         precision to guessed.
6858
6859 2018-01-23  Richard Biener  <rguenther@suse.de>
6860
6861         PR tree-optimization/83963
6862         * graphite-scop-detection.c (scop_detection::harmful_loop_in_region):
6863         Properly terminate dominator walk when crossing the exit edge not
6864         when visiting its source block.
6865
6866 2018-01-23  Jakub Jelinek  <jakub@redhat.com>
6867
6868         PR c++/83918
6869         * tree.c (maybe_wrap_with_location): Use NON_LVALUE_EXPR rather than
6870         VIEW_CONVERT_EXPR to wrap CONST_DECLs.
6871
6872 2018-01-22  Jakub Jelinek  <jakub@redhat.com>
6873
6874         PR tree-optimization/83957
6875         * omp-expand.c (expand_omp_for_generic): Ignore virtual PHIs.  Remove
6876         semicolon after for body surrounded by braces.
6877
6878         PR tree-optimization/83081
6879         * profile-count.h (profile_probability::split): New method.
6880         * dojump.c (do_jump_1) <case TRUTH_ANDIF_EXPR, case TRUTH_ORIF_EXPR>:
6881         Use profile_probability::split.
6882         (do_compare_rtx_and_jump): Fix adjustment of probabilities
6883         when splitting a single conditional jump into 2.
6884
6885 2018-01-22  David Malcolm  <dmalcolm@redhat.com>
6886
6887         PR tree-optimization/69452
6888         * tree-ssa-loop-im.c (class move_computations_dom_walker): Remove
6889         decl.
6890
6891 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6892
6893         * config/rl78/rl78-expand.md (bswaphi2): New define_expand.
6894         * config/rl78/rl78-virt.md (*bswaphi2_virt): New define_insn.
6895         * config/rl78/rl78-real.md (*bswaphi2_real): New define_insn.
6896
6897 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6898
6899         * config/rl78/rl78-protos.h (rl78_split_movdi): New function declaration.
6900         * config/rl78/rl78.md (movdi): New define_expand.
6901         * config/rl78/rl78.c (rl78_split_movdi): New function.
6902
6903 2018-01-22  Michael Meissner  <meissner@linux.vnet.ibm.com>
6904
6905         PR target/83862
6906         * config/rs6000/rs6000-protos.h (rs6000_split_signbit): Delete,
6907         no longer used.
6908         * config/rs6000/rs6000.c (rs6000_split_signbit): Likewise.
6909         * config/rs6000/rs6000.md (signbit<mode>2): Change code for IEEE
6910         128-bit to produce an UNSPEC move to get the double word with the
6911         signbit and then a shift directly to do signbit.
6912         (signbit<mode>2_dm): Replace old IEEE 128-bit signbit
6913         implementation with a new version that just does either a direct
6914         move or a regular move.  Move memory interface to separate insns.
6915         Move insns so they are next to the expander.
6916         (signbit<mode>2_dm_mem_be): New combiner insns to combine load
6917         with signbit move.  Split big and little endian case.
6918         (signbit<mode>2_dm_mem_le): Likewise.
6919         (signbit<mode>2_dm_<su>ext): Delete, no longer used.
6920         (signbit<mode>2_dm2): Likewise.
6921
6922 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6923
6924         * config/rl78/rl78.md (anddi3): New define_expand.
6925
6926 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6927
6928         * config/rl78/rl78.md (umindi3): New define_expand.
6929
6930 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6931
6932         * config/rl78/rl78.md (smindi3): New define_expand.
6933
6934 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6935
6936         * config/rl78/rl78.md (smaxdi3): New define_expand.
6937
6938 2018-01-22  Carl Love  <cel@us.ibm.com>
6939
6940         * config/rs6000/rs6000-builtin.def (ST_ELEMREV_V1TI, LD_ELEMREV_V1TI,
6941         LVX_V1TI): Add macro expansion.
6942         * config/rs6000/rs6000-c.c (altivec_builtin_types): Add argument
6943         definitions for VSX_BUILTIN_VEC_XST_BE, VSX_BUILTIN_VEC_ST,
6944         VSX_BUILTIN_VEC_XL, LD_ELEMREV_V1TI builtins.
6945         * config/rs6000/rs6000-p8swap.c (insn_is_swappable_p);
6946         Change check to determine if the instruction is a byte reversing
6947         entry.  Fix typo in comment.
6948         * config/rs6000/rs6000.c (altivec_expand_builtin): Add case entry
6949         for VSX_BUILTIN_ST_ELEMREV_V1TI and VSX_BUILTIN_LD_ELEMREV_V1TI.
6950         Add def_builtin calls for new builtins.
6951         * config/rs6000/vsx.md (vsx_st_elemrev_v1ti, vsx_ld_elemrev_v1ti):
6952         Add define_insn expansion.
6953
6954 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6955
6956         * config/rl78/rl78.md (umaxdi3): New define_expand.
6957
6958 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
6959
6960         * config/rl78/rl78.c (rl78_note_reg_set): Fixed dead reg check
6961         for non-QImode registers.
6962
6963 2018-01-22  Richard Biener  <rguenther@suse.de>
6964
6965         PR tree-optimization/83963
6966         * graphite-scop-detection.c (scop_detection::get_sese): Delay
6967         including the loop exit block.
6968         (scop_detection::merge_sese): Likewise.
6969         (scop_detection::add_scop): Do it here instead.
6970
6971 2018-01-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
6972
6973         * doc/sourcebuild.texi (arm_softfloat): Document.
6974
6975 2018-01-21  John David Anglin  <danglin@gcc.gnu.org>
6976
6977         PR gcc/77734
6978         * config/pa/pa.c (pa_function_ok_for_sibcall): Use
6979         targetm.binds_local_p instead of TREE_PUBLIC to check local binding.
6980         Move TARGET_PORTABLE_RUNTIME check after TARGET_64BIT check.
6981
6982 2018-01-21  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
6983             David Edelsohn  <dje.gcc@gmail.com>
6984
6985         PR target/83946
6986         * config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
6987         Change "crset eq" to "crset 2".
6988         (*call_value_indirect_nonlocal_sysv<mode>): Likewise.
6989         (*call_indirect_aix<mode>_nospec): Likewise.
6990         (*call_value_indirect_aix<mode>_nospec): Likewise.
6991         (*call_indirect_elfv2<mode>_nospec): Likewise.
6992         (*call_value_indirect_elfv2<mode>_nospec): Likewise.
6993         (*sibcall_nonlocal_sysv<mode>): Change "crset eq" to "crset 2";
6994         change assembly output from . to $.
6995         (*sibcall_value_nonlocal_sysv<mode>): Likewise.
6996         (indirect_jump<mode>_nospec): Change assembly output from . to $.
6997         (*tablejump<mode>_internal1_nospec): Likewise.
6998
6999 2018-01-21  Oleg Endo  <olegendo@gcc.gnu.org>
7000
7001         PR target/80870
7002         * config/sh/sh_optimize_sett_clrt.cc:
7003         Use INCLUDE_ALGORITHM and INCLUDE_VECTOR instead of direct includes.
7004
7005 2018-01-20  Richard Sandiford  <richard.sandiford@linaro.org>
7006
7007         PR tree-optimization/83940
7008         * tree-vect-stmts.c (vect_truncate_gather_scatter_offset): Set
7009         offset_dt to vect_constant_def rather than vect_unknown_def_type.
7010         (vect_check_load_store_mask): Add a mask_dt_out parameter and
7011         use it to pass back the definition type.
7012         (vect_check_store_rhs): Likewise rhs_dt_out.
7013         (vect_build_gather_load_calls): Add a mask_dt argument and use
7014         it instead of a call to vect_is_simple_use.
7015         (vectorizable_store): Update calls to vect_check_load_store_mask
7016         and vect_check_store_rhs.  Use the dt returned by the latter instead
7017         of scatter_src_dt.  Use the cached mask_dt and gs_info.offset_dt
7018         instead of calls to vect_is_simple_use.  Pass the scalar rather
7019         than the vector operand to vect_is_simple_use when handling
7020         second and subsequent copies of an rhs value.
7021         (vectorizable_load): Update calls to vect_check_load_store_mask
7022         and vect_build_gather_load_calls.  Use the cached mask_dt and
7023         gs_info.offset_dt instead of calls to vect_is_simple_use.
7024
7025 2018-01-20  Jakub Jelinek  <jakub@redhat.com>
7026
7027         PR middle-end/83945
7028         * tree-emutls.c: Include gimplify.h.
7029         (lower_emutls_2): New function.
7030         (lower_emutls_1): If ADDR_EXPR is a gimple invariant and walk_tree
7031         with lower_emutls_2 callback finds some TLS decl in it, unshare_expr
7032         it before further processing.
7033
7034         PR target/83930
7035         * simplify-rtx.c (simplify_binary_operation_1) <case UMOD>: Use
7036         UINTVAL (trueop1) instead of INTVAL (op1).
7037
7038 2018-01-19  Jakub Jelinek  <jakub@redhat.com>
7039
7040         PR debug/81570
7041         PR debug/83728
7042         * dwarf2cfi.c (DEFAULT_INCOMING_FRAME_SP_OFFSET): Define to
7043         INCOMING_FRAME_SP_OFFSET if not defined.
7044         (scan_trace): Add ENTRY argument.  If true and
7045         DEFAULT_INCOMING_FRAME_SP_OFFSET != INCOMING_FRAME_SP_OFFSET,
7046         emit a note to adjust the CFA offset.
7047         (create_cfi_notes): Adjust scan_trace callers.
7048         (create_cie_data): Use DEFAULT_INCOMING_FRAME_SP_OFFSET rather than
7049         INCOMING_FRAME_SP_OFFSET in the CIE.
7050         * config/i386/i386.h (DEFAULT_INCOMING_FRAME_SP_OFFSET): Define.
7051         * config/stormy16/stormy16.h (DEFAULT_INCOMING_FRAME_SP_OFFSET):
7052         Likewise.
7053         * doc/tm.texi.in (DEFAULT_INCOMING_FRAME_SP_OFFSET): Document.
7054         * doc/tm.texi: Regenerated.
7055
7056 2018-01-19  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
7057
7058         PR rtl-optimization/83147
7059         * lra-constraints.c (remove_inheritance_pseudos): Use
7060         lra_substitute_pseudo_within_insn.
7061
7062 2018-01-19  Tom de Vries  <tom@codesourcery.com>
7063             Cesar Philippidis  <cesar@codesourcery.com>
7064
7065         PR target/83920
7066         * config/nvptx/nvptx.c (nvptx_single): Fix jit workaround.
7067
7068 2018-01-19  Cesar Philippidis  <cesar@codesourcery.com>
7069
7070         PR target/83790
7071         * config/nvptx/nvptx.c (output_init_frag): Don't use generic address
7072         spaces for function labels.
7073
7074 2018-01-19  Martin Liska  <mliska@suse.cz>
7075
7076         * predict.def (PRED_LOOP_EXIT): Change from 85 to 89.
7077         (PRED_LOOP_EXIT_WITH_RECURSION): Change from 72 to 78.
7078         (PRED_LOOP_EXTRA_EXIT): Change from 83 to 67.
7079         (PRED_OPCODE_POSITIVE): Change from 64 to 59.
7080         (PRED_TREE_OPCODE_POSITIVE): Change from 64 to 59.
7081         (PRED_CONST_RETURN): Change from 69 to 65.
7082         (PRED_NULL_RETURN): Change from 91 to 71.
7083         (PRED_LOOP_IV_COMPARE_GUESS): Change from 98 to 64.
7084         (PRED_LOOP_GUARD): Change from 66 to 73.
7085
7086 2018-01-19  Martin Liska  <mliska@suse.cz>
7087
7088         * predict.c (predict_insn_def): Add new assert.
7089         (struct branch_predictor): Change type to signed integer.
7090         (test_prediction_value_range): Amend test to cover
7091         PROB_UNINITIALIZED.
7092         * predict.def (PRED_LOOP_ITERATIONS): Use the new constant.
7093         (PRED_LOOP_ITERATIONS_GUESSED): Likewise.
7094         (PRED_LOOP_ITERATIONS_MAX): Likewise.
7095         (PRED_LOOP_IV_COMPARE): Likewise.
7096         * predict.h (PROB_UNINITIALIZED): Define new constant.
7097
7098 2018-01-19  Martin Liska  <mliska@suse.cz>
7099
7100         * predict.c (dump_prediction): Add new format for
7101         analyze_brprob.py script which is enabled with -details
7102         suboption.
7103         * profile-count.h (precise_p): New function.
7104
7105 2018-01-19  Richard Sandiford  <richard.sandiford@linaro.org>
7106
7107         PR tree-optimization/83922
7108         * tree-vect-loop.c (vect_verify_full_masking): Return false if
7109         there are no statements that need masking.
7110         (vect_active_double_reduction_p): New function.
7111         (vect_analyze_loop_operations): Use it when handling phis that
7112         are not in the loop header.
7113
7114 2018-01-19  Richard Sandiford  <richard.sandiford@linaro.org>
7115
7116         PR tree-optimization/83914
7117         * tree-vect-loop.c (vectorizable_induction): Don't convert
7118         init_expr or apply the peeling adjustment for inductions
7119         that are nested within the vectorized loop.
7120
7121 2018-01-19  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
7122
7123         * config/arm/thumb2.md (*thumb2_negsi2_short): Use RSB mnemonic
7124         instead of NEG.
7125
7126 2018-01-18  Jakub Jelinek  <jakub@redhat.com>
7127
7128         PR sanitizer/81715
7129         PR testsuite/83882
7130         * function.h (gimplify_parameters): Add gimple_seq * argument.
7131         * function.c: Include gimple.h and options.h.
7132         (gimplify_parameters): Add cleanup argument, add CLOBBER stmts
7133         for the added local temporaries if needed.
7134         * gimplify.c (gimplify_body): Adjust gimplify_parameters caller,
7135         if there are any parameter cleanups, wrap whole body into a
7136         try/finally with the cleanups.
7137
7138 2018-01-18  Wilco Dijkstra  <wdijkstr@arm.com>
7139
7140         PR target/82964
7141         * config/aarch64/aarch64.c (aarch64_legitimate_constant_p):
7142         Use GET_MODE_CLASS for scalar floating point.
7143
7144 2018-01-18  Jan Hubicka  <hubicka@ucw.cz>
7145
7146         PR ipa/82256
7147         patch by PaX Team
7148         * cgraphclones.c (cgraph_node::create_version_clone_with_body):
7149         Fix call of call_cgraph_insertion_hooks.
7150
7151 2018-01-18  Martin Sebor  <msebor@redhat.com>
7152
7153         * doc/invoke.texi (-Wclass-memaccess): Tweak text.
7154
7155 2018-01-18  Jan Hubicka  <hubicka@ucw.cz>
7156
7157         PR ipa/83619
7158         * cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Update edge
7159         frequencies.
7160
7161 2018-01-18  Boris Kolpackov  <boris@codesynthesis.com>
7162
7163         PR other/70268
7164         * common.opt: (-ffile-prefix-map): New option.
7165         * opts.c (common_handle_option): Defer it.
7166         * opts-global.c (handle_common_deferred_options): Handle it.
7167         * debug.h (remap_debug_filename, add_debug_prefix_map): Move to...
7168         * file-prefix-map.h: New file.
7169         (remap_debug_filename, add_debug_prefix_map): ...here.
7170         (add_macro_prefix_map, add_file_prefix_map, remap_macro_filename): New.
7171         * final.c (debug_prefix_map, add_debug_prefix_map
7172         remap_debug_filename): Move to...
7173         * file-prefix-map.c: New file.
7174         (file_prefix_map, add_prefix_map, remap_filename) ...here and rename,
7175         generalize, get rid of alloca(), use strrchr() instead of strchr().
7176         (add_macro_prefix_map, add_debug_prefix_map, add_file_prefix_map):
7177         Implement in terms of add_prefix_map().
7178         (remap_macro_filename, remap_debug_filename): Implement in term of
7179         remap_filename().
7180         * Makefile.in (OBJS, PLUGIN_HEADERS): Add new files.
7181         * builtins.c (fold_builtin_FILE): Call remap_macro_filename().
7182         * dbxout.c: Include file-prefix-map.h.
7183         * varasm.c: Likewise.
7184         * vmsdbgout.c: Likewise.
7185         * xcoffout.c: Likewise.
7186         * dwarf2out.c: Likewise plus omit new options from DW_AT_producer.
7187         * doc/cppopts.texi (-fmacro-prefix-map): Document.
7188         * doc/invoke.texi (-ffile-prefix-map): Document.
7189         (-fdebug-prefix-map): Update description.
7190
7191 2018-01-18  Martin Liska  <mliska@suse.cz>
7192
7193         * config/i386/i386.c (indirect_thunk_name): Document that also
7194         lfence is emitted.
7195         (output_indirect_thunk): Document why both instructions
7196         (pause and lfence) are generated.
7197
7198 2018-01-18  Richard Biener  <rguenther@suse.de>
7199
7200         PR tree-optimization/83887
7201         * graphite-scop-detection.c
7202         (scop_detection::get_nearest_dom_with_single_entry): Remove.
7203         (scop_detection::get_nearest_pdom_with_single_exit): Likewise.
7204         (scop_detection::merge_sese): Re-implement with a flood-fill
7205         algorithm that properly finds a SESE region if it exists.
7206
7207 2018-01-18  Jakub Jelinek  <jakub@redhat.com>
7208
7209         PR c/61240
7210         * match.pd ((P + A) - P, P - (P + A), (P + A) - (P + B)): For
7211         pointer_diff optimizations use view_convert instead of convert.
7212
7213 2018-01-17  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
7214
7215         * config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
7216         Generate different code for -mno-speculate-indirect-jumps.
7217         (*call_value_indirect_nonlocal_sysv<mode>): Likewise.
7218         (*call_indirect_aix<mode>): Disable for
7219         -mno-speculate-indirect-jumps.
7220         (*call_indirect_aix<mode>_nospec): New define_insn.
7221         (*call_value_indirect_aix<mode>): Disable for
7222         -mno-speculate-indirect-jumps.
7223         (*call_value_indirect_aix<mode>_nospec): New define_insn.
7224         (*sibcall_nonlocal_sysv<mode>): Generate different code for
7225         -mno-speculate-indirect-jumps.
7226         (*sibcall_value_nonlocal_sysv<mode>): Likewise.
7227
7228 2018-01-17  Michael Meissner  <meissner@linux.vnet.ibm.com>
7229
7230         * config/rs6000/rs6000.c (rs6000_emit_move): If we load or store a
7231         long double type, set the flags for noting the default long double
7232         type, even if we don't pass or return a long double type.
7233
7234 2018-01-17  Jan Hubicka  <hubicka@ucw.cz>
7235
7236         PR ipa/83051
7237         * ipa-inline.c (flatten_function): Do not overwrite final inlining
7238         failure.
7239
7240 2018-01-17  Will Schmidt  <will_schmidt@vnet.ibm.com>
7241
7242         * config/rs6000/rs6000.c (rs6000_gimple_builtin): Add gimple folding
7243         support for merge[hl].
7244         (fold_mergehl_helper): New helper function.
7245         (tree-vector-builder.h): New #include for tree_vector_builder usage.
7246         * config/rs6000/altivec.md (altivec_vmrghw_direct): Add xxmrghw insn.
7247         (altivec_vmrglw_direct): Add xxmrglw insn.
7248
7249 2018-01-17  Andrew Waterman  <andrew@sifive.com>
7250
7251         * config/riscv/riscv.c (riscv_conditional_register_usage): If
7252         UNITS_PER_FP_ARG is 0, set call_used_regs to 1 for all FP regs.
7253
7254 2018-01-17  David Malcolm  <dmalcolm@redhat.com>
7255
7256         PR lto/83121
7257         * ipa-devirt.c (add_type_duplicate): When comparing memory layout,
7258         call the lto_location_cache before reading the
7259         DECL_SOURCE_LOCATION of the types.
7260
7261 2018-01-17  Wilco Dijkstra  <wdijkstr@arm.com>
7262             Richard Sandiford  <richard.sandiford@linaro.org>
7263
7264         * config/aarch64/aarch64.md (movti_aarch64): Use Uti constraint.
7265         * config/aarch64/aarch64.c (aarch64_mov128_immediate): New function.
7266         (aarch64_legitimate_constant_p): Just support CONST_DOUBLE
7267         SF/DF/TF mode to avoid creating illegal CONST_WIDE_INT immediates.
7268         * config/aarch64/aarch64-protos.h (aarch64_mov128_immediate):
7269         Add declaration.
7270         * config/aarch64/constraints.md (aarch64_movti_operand):
7271         Limit immediates.
7272         * config/aarch64/predicates.md (Uti): Add new constraint.
7273
7274 2018-01-17 Carl Love  <cel@us.ibm.com>
7275
7276         * config/rs6000/vsx.md (define_expand xl_len_r,
7277         define_expand stxvl, define_expand *stxvl): Add match_dup argument.
7278         (define_insn): Add, match_dup 1 argument to define_insn stxvll and
7279         lxvll.
7280         (define_expand, define_insn): Move the shift left from  the
7281         define_insn to the define_expand for lxvl and stxvl instructions.
7282         * config/rs6000/rs6000-builtin.def (BU_P9V_64BIT_VSX_2): Change LXVL
7283         and XL_LEN_R definitions to PURE.
7284
7285 2018-01-17  Uros Bizjak  <ubizjak@gmail.com>
7286
7287         * config/i386/i386.c (indirect_thunk_name): Declare regno
7288         as unsigned int.  Compare regno with INVALID_REGNUM.
7289         (output_indirect_thunk): Ditto.
7290         (output_indirect_thunk_function): Ditto.
7291         (ix86_code_end): Declare regno as unsigned int.  Use INVALID_REGNUM
7292         in the call to output_indirect_thunk_function.
7293
7294 2018-01-17  Richard Sandiford  <richard.sandiford@linaro.org>
7295
7296         PR middle-end/83884
7297         * expr.c (expand_expr_real_1): Use the size of GET_MODE (op0)
7298         rather than the size of inner_type to determine the stack slot size
7299         when handling VIEW_CONVERT_EXPRs on strict-alignment targets.
7300
7301 2018-01-16  Sebastian Peryt  <sebastian.peryt@intel.com>
7302
7303         PR target/83546
7304         * config/i386/i386.c (ix86_option_override_internal): Add PTA_RDRND
7305         to PTA_SILVERMONT.
7306
7307 2018-01-16  Michael Meissner  <meissner@linux.vnet.ibm.com>
7308
7309         * config.gcc (powerpc*-linux*-*): Add support for 64-bit little
7310         endian Linux systems to optionally enable multilibs for selecting
7311         the long double type if the user configured an explicit type.
7312         * config/rs6000/rs6000.h (TARGET_IEEEQUAD_MULTILIB): Indicate we
7313         have no long double multilibs if not defined.
7314         * config/rs6000/rs6000.c (rs6000_option_override_internal): Do not
7315         warn if the user used -mabi={ieee,ibm}longdouble and we built
7316         multilibs for long double.
7317         * config/rs6000/linux64.h (MULTILIB_DEFAULTS_IEEE): Define as the
7318         appropriate multilib option.
7319         (MULTILIB_DEFAULTS): Add MULTILIB_DEFAULTS_IEEE to the default
7320         multilib options.
7321         * config/rs6000/t-ldouble-linux64le-ibm: New configuration files
7322         for building long double multilibs.
7323         * config/rs6000/t-ldouble-linux64le-ieee: Likewise.
7324
7325 2018-01-16  John David Anglin  <danglin@gcc.gnu.org>
7326
7327         * config.gcc (hppa*-*-linux*): Change callee copies ABI to caller
7328         copies.
7329
7330         * config/pa.h (MALLOC_ABI_ALIGNMENT): Set 32-bit alignment default to
7331         64 bits.
7332         * config/pa/pa32-linux.h (MALLOC_ABI_ALIGNMENT): Set alignment to
7333         128 bits.
7334
7335         * config/pa/som.h (ASM_DECLARE_FUNCTION_NAME): Cleanup type and mode
7336         variables.
7337
7338         * config/pa/pa.c (pa_function_arg_size): Apply CEIL to GET_MODE_SIZE
7339         return value.
7340
7341 2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>
7342
7343         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): For an
7344         ADDR_EXPR, do not count the offset of a COMPONENT_REF twice.
7345
7346 2018-01-16  Kelvin Nilsen  <kelvin@gcc.gnu.org>
7347
7348         * config/rs6000/rs6000-p8swap.c (rs6000_gen_stvx): Generate
7349         different rtl trees depending on TARGET_64BIT.
7350         (rs6000_gen_lvx): Likewise.
7351
7352 2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>
7353
7354         * config/visium/visium.md (nop): Tweak comment.
7355         (hazard_nop): Likewise.
7356
7357 2018-01-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
7358
7359         * config/rs6000/rs6000.c (rs6000_opt_vars): Add entry for
7360         -mspeculate-indirect-jumps.
7361         * config/rs6000/rs6000.md (*call_indirect_elfv2<mode>): Disable
7362         for -mno-speculate-indirect-jumps.
7363         (*call_indirect_elfv2<mode>_nospec): New define_insn.
7364         (*call_value_indirect_elfv2<mode>): Disable for
7365         -mno-speculate-indirect-jumps.
7366         (*call_value_indirect_elfv2<mode>_nospec): New define_insn.
7367         (indirect_jump): Emit different RTL for
7368         -mno-speculate-indirect-jumps.
7369         (*indirect_jump<mode>): Disable for
7370         -mno-speculate-indirect-jumps.
7371         (*indirect_jump<mode>_nospec): New define_insn.
7372         (tablejump): Emit different RTL for
7373         -mno-speculate-indirect-jumps.
7374         (tablejumpsi): Disable for -mno-speculate-indirect-jumps.
7375         (tablejumpsi_nospec): New define_expand.
7376         (tablejumpdi): Disable for -mno-speculate-indirect-jumps.
7377         (tablejumpdi_nospec): New define_expand.
7378         (*tablejump<mode>_internal1): Disable for
7379         -mno-speculate-indirect-jumps.
7380         (*tablejump<mode>_internal1_nospec): New define_insn.
7381         * config/rs6000/rs6000.opt (mspeculate-indirect-jumps): New
7382         option.
7383
7384 2018-01-16  Artyom Skrobov tyomitch@gmail.com
7385
7386         * caller-save.c (insert_save): Drop unnecessary parameter.  All
7387         callers updated.
7388
7389 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
7390             Richard Biener  <rguenth@suse.de>
7391
7392         PR libgomp/83590
7393         * gimplify.c (gimplify_one_sizepos): For is_gimple_constant (expr)
7394         return early, inline manually is_gimple_sizepos.  Make sure if we
7395         call gimplify_expr we don't end up with a gimple constant.
7396         * tree.c (variably_modified_type_p): Don't return true for
7397         is_gimple_constant (_t).  Inline manually is_gimple_sizepos.
7398         * gimplify.h (is_gimple_sizepos): Remove.
7399
7400 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
7401
7402         PR tree-optimization/83857
7403         * tree-vect-loop.c (vect_analyze_loop_operations): Don't call
7404         vectorizable_live_operation for pure SLP statements.
7405         (vectorizable_live_operation): Handle PHIs.
7406
7407 2018-01-16  Richard Biener  <rguenther@suse.de>
7408
7409         PR tree-optimization/83867
7410         * tree-vect-stmts.c (vect_transform_stmt): Precompute
7411         nested_in_vect_loop_p since the scalar stmt may get invalidated.
7412
7413 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
7414
7415         PR c/83844
7416         * stor-layout.c (handle_warn_if_not_align): Use byte_position and
7417         multiple_of_p instead of unchecked tree_to_uhwi and UHWI check.
7418         If off is not INTEGER_CST, issue a may not be aligned warning
7419         rather than isn't aligned.  Use isn%'t rather than isn't.
7420         * fold-const.c (multiple_of_p) <case BIT_AND_EXPR>: Don't fall through
7421         into MULT_EXPR.
7422         <case MULT_EXPR>: Improve the case when bottom and one of the
7423         MULT_EXPR operands are INTEGER_CSTs and bottom is multiple of that
7424         operand, in that case check if the other operand is multiple of
7425         bottom divided by the INTEGER_CST operand.
7426
7427 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
7428
7429         PR target/83858
7430         * config/pa/pa.h (FUNCTION_ARG_SIZE): Delete.
7431         * config/pa/pa-protos.h (pa_function_arg_size): Declare.
7432         * config/pa/som.h (ASM_DECLARE_FUNCTION_NAME): Use
7433         pa_function_arg_size instead of FUNCTION_ARG_SIZE.
7434         * config/pa/pa.c (pa_function_arg_advance): Likewise.
7435         (pa_function_arg, pa_arg_partial_bytes): Likewise.
7436         (pa_function_arg_size): New function.
7437
7438 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
7439
7440         * fold-const.c (fold_ternary_loc): Construct the vec_perm_indices
7441         in a separate statement.
7442
7443 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
7444
7445         PR tree-optimization/83847
7446         * tree-vect-data-refs.c (vect_analyze_data_ref_accesses): Don't
7447         group gathers and scatters.
7448
7449 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
7450
7451         PR rtl-optimization/86620
7452         * params.def (max-sched-ready-insns): Bump minimum value to 1.
7453
7454         PR rtl-optimization/83213
7455         * recog.c (peep2_attempt): Copy over CROSSING_JUMP_P from peepinsn
7456         to last if both are JUMP_INSNs.
7457
7458         PR tree-optimization/83843
7459         * gimple-ssa-store-merging.c
7460         (imm_store_chain_info::output_merged_store): Handle bit_not_p on
7461         store_immediate_info for bswap/nop orig_stores.
7462
7463 2018-01-15  Andrew Waterman  <andrew@sifive.com>
7464
7465         * config/riscv/riscv.c (riscv_rtx_costs) <MULT>: Increase cost if
7466         !TARGET_MUL.
7467         <UDIV>: Increase cost if !TARGET_DIV.
7468
7469 2018-01-15  Segher Boessenkool  <segher@kernel.crashing.org>
7470
7471         * config/rs6000/rs6000.md (define_attr "type"): Remove delayed_cr.
7472         (define_attr "cr_logical_3op"): New.
7473         (cceq_ior_compare): Adjust.
7474         (cceq_ior_compare_complement): Adjust.
7475         (*cceq_rev_compare): Adjust.
7476         * config/rs6000/rs6000.c (rs6000_adjust_cost): Adjust.
7477         (is_cracked_insn): Adjust.
7478         (insn_must_be_first_in_group): Adjust.
7479         * config/rs6000/40x.md: Adjust.
7480         * config/rs6000/440.md: Adjust.
7481         * config/rs6000/476.md: Adjust.
7482         * config/rs6000/601.md: Adjust.
7483         * config/rs6000/603.md: Adjust.
7484         * config/rs6000/6xx.md: Adjust.
7485         * config/rs6000/7450.md: Adjust.
7486         * config/rs6000/7xx.md: Adjust.
7487         * config/rs6000/8540.md: Adjust.
7488         * config/rs6000/cell.md: Adjust.
7489         * config/rs6000/e300c2c3.md: Adjust.
7490         * config/rs6000/e500mc.md: Adjust.
7491         * config/rs6000/e500mc64.md: Adjust.
7492         * config/rs6000/e5500.md: Adjust.
7493         * config/rs6000/e6500.md: Adjust.
7494         * config/rs6000/mpc.md: Adjust.
7495         * config/rs6000/power4.md: Adjust.
7496         * config/rs6000/power5.md: Adjust.
7497         * config/rs6000/power6.md: Adjust.
7498         * config/rs6000/power7.md: Adjust.
7499         * config/rs6000/power8.md: Adjust.
7500         * config/rs6000/power9.md: Adjust.
7501         * config/rs6000/rs64.md: Adjust.
7502         * config/rs6000/titan.md: Adjust.
7503
7504 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
7505
7506         * config/i386/predicates.md (indirect_branch_operand): Rewrite
7507         ix86_indirect_branch_register logic.
7508
7509 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
7510
7511         * config/i386/constraints.md (Bs): Update
7512         ix86_indirect_branch_register check.  Don't check
7513         ix86_indirect_branch_register with GOT_memory_operand.
7514         (Bw): Likewise.
7515         * config/i386/predicates.md (GOT_memory_operand): Don't check
7516         ix86_indirect_branch_register here.
7517         (GOT32_symbol_operand): Likewise.
7518
7519 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
7520
7521         * config/i386/predicates.md (constant_call_address_operand):
7522         Rewrite ix86_indirect_branch_register logic.
7523         (sibcall_insn_operand): Likewise.
7524
7525 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
7526
7527         * config/i386/constraints.md (Bs): Replace
7528         ix86_indirect_branch_thunk_register with
7529         ix86_indirect_branch_register.
7530         (Bw): Likewise.
7531         * config/i386/i386.md (indirect_jump): Likewise.
7532         (tablejump): Likewise.
7533         (*sibcall_memory): Likewise.
7534         (*sibcall_value_memory): Likewise.
7535         Peepholes of indirect call and jump via memory: Likewise.
7536         * config/i386/i386.opt: Likewise.
7537         * config/i386/predicates.md (indirect_branch_operand): Likewise.
7538         (GOT_memory_operand): Likewise.
7539         (call_insn_operand): Likewise.
7540         (sibcall_insn_operand): Likewise.
7541         (GOT32_symbol_operand): Likewise.
7542
7543 2018-01-15  Jakub Jelinek  <jakub@redhat.com>
7544
7545         PR middle-end/83837
7546         * omp-expand.c (expand_omp_atomic_pipeline): Use loaded_val
7547         type rather than type addr's type points to.
7548         (expand_omp_atomic_mutex): Likewise.
7549         (expand_omp_atomic): Likewise.
7550
7551 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
7552
7553         PR target/83839
7554         * config/i386/i386.c (output_indirect_thunk_function): Use
7555         ASM_OUTPUT_LABEL, instead of ASM_OUTPUT_DEF, for TARGET_MACHO
7556         for  __x86_return_thunk.
7557
7558 2018-01-15  Richard Biener  <rguenther@suse.de>
7559
7560         PR middle-end/83850
7561         * expmed.c (extract_bit_field_1): Fix typo.
7562
7563 2018-01-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
7564
7565         PR target/83687
7566         * config/arm/iterators.md (VF): New mode iterator.
7567         * config/arm/neon.md (neon_vabd<mode>_2): Use the above.
7568         Remove integer-related logic from pattern.
7569         (neon_vabd<mode>_3): Likewise.
7570
7571 2018-01-15  Jakub Jelinek  <jakub@redhat.com>
7572
7573         PR middle-end/82694
7574         * common.opt (fstrict-overflow): No longer an alias.
7575         (fwrapv-pointer): New option.
7576         * tree.h (TYPE_OVERFLOW_WRAPS, TYPE_OVERFLOW_UNDEFINED): Define
7577         also for pointer types based on flag_wrapv_pointer.
7578         * opts.c (common_handle_option) <case OPT_fstrict_overflow>: Set
7579         opts->x_flag_wrap[pv] to !value, clear opts->x_flag_trapv if
7580         opts->x_flag_wrapv got set.
7581         * fold-const.c (fold_comparison, fold_binary_loc): Revert 2017-08-01
7582         changes, just use TYPE_OVERFLOW_UNDEFINED on pointer type instead of
7583         POINTER_TYPE_OVERFLOW_UNDEFINED.
7584         * match.pd: Likewise in address comparison pattern.
7585         * doc/invoke.texi: Document -fwrapv and -fstrict-overflow.
7586
7587 2018-01-15  Richard Biener  <rguenther@suse.de>
7588
7589         PR lto/83804
7590         * tree.c (free_lang_data_in_type): Always unlink TYPE_DECLs
7591         from TYPE_FIELDS.  Free TYPE_BINFO if not used by devirtualization.
7592         Reset type names to their identifier if their TYPE_DECL doesn't
7593         have linkage (and thus is used for ODR and devirt).
7594         (save_debug_info_for_decl): Remove.
7595         (save_debug_info_for_type): Likewise.
7596         (add_tree_to_fld_list): Adjust.
7597         * tree-pretty-print.c (dump_generic_node): Make dumping of
7598         type names more robust.
7599
7600 2018-01-15  Richard Biener  <rguenther@suse.de>
7601
7602         * BASE-VER: Bump to 8.0.1.
7603
7604 2018-01-14  Martin Sebor  <msebor@redhat.com>
7605
7606         PR other/83508
7607         * builtins.c (check_access): Avoid warning when the no-warning bit
7608         is set.
7609
7610 2018-01-14  Cory Fields  <cory-nospam-@coryfields.com>
7611
7612         * tree-ssa-loop-im.c (sort_bbs_in_loop_postorder_cmp): Stabilize sort.
7613         * ira-color (allocno_hard_regs_compare): Likewise.
7614
7615 2018-01-14  Nathan Rossi  <nathan@nathanrossi.com>
7616
7617         PR target/83013
7618         * config/microblaze/microblaze.c (microblaze_asm_output_ident):
7619         Use .pushsection/.popsection.
7620
7621 2018-01-14  Martin Sebor  <msebor@redhat.com>
7622
7623         PR c++/81327
7624         * doc/invoke.texi (-Wlass-memaccess): Document suppression by casting.
7625
7626 2018-01-14  Jakub Jelinek  <jakub@redhat.com>
7627
7628         * config.gcc (i[34567]86-*-*): Remove one duplicate gfniintrin.h
7629         entry from extra_headers.
7630         (x86_64-*-*): Remove two duplicate gfniintrin.h entries from
7631         extra_headers, make the list bitwise identical to the i?86-*-* one.
7632
7633 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
7634
7635         * config/i386/i386.c (ix86_set_indirect_branch_type): Disallow
7636         -mcmodel=large with -mindirect-branch=thunk,
7637         -mindirect-branch=thunk-extern, -mfunction-return=thunk and
7638         -mfunction-return=thunk-extern.
7639         * doc/invoke.texi: Document -mcmodel=large is incompatible with
7640         -mindirect-branch=thunk, -mindirect-branch=thunk-extern,
7641         -mfunction-return=thunk and -mfunction-return=thunk-extern.
7642
7643 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
7644
7645         * config/i386/i386.c (print_reg): Print the name of the full
7646         integer register without '%'.
7647         (ix86_print_operand): Handle 'V'.
7648          * doc/extend.texi: Document 'V' modifier.
7649
7650 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
7651
7652         * config/i386/constraints.md (Bs): Disallow memory operand for
7653         -mindirect-branch-register.
7654         (Bw): Likewise.
7655         * config/i386/predicates.md (indirect_branch_operand): Likewise.
7656         (GOT_memory_operand): Likewise.
7657         (call_insn_operand): Likewise.
7658         (sibcall_insn_operand): Likewise.
7659         (GOT32_symbol_operand): Likewise.
7660         * config/i386/i386.md (indirect_jump): Call convert_memory_address
7661         for -mindirect-branch-register.
7662         (tablejump): Likewise.
7663         (*sibcall_memory): Likewise.
7664         (*sibcall_value_memory): Likewise.
7665         Disallow peepholes of indirect call and jump via memory for
7666         -mindirect-branch-register.
7667         (*call_pop): Replace m with Bw.
7668         (*call_value_pop): Likewise.
7669         (*sibcall_pop_memory): Replace m with Bs.
7670         * config/i386/i386.opt (mindirect-branch-register): New option.
7671         * doc/invoke.texi: Document -mindirect-branch-register option.
7672
7673 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
7674
7675         * config/i386/i386-protos.h (ix86_output_function_return): New.
7676         * config/i386/i386.c (ix86_set_indirect_branch_type): Also
7677         set function_return_type.
7678         (indirect_thunk_name): Add ret_p to indicate thunk for function
7679         return.
7680         (output_indirect_thunk_function): Pass false to
7681         indirect_thunk_name.
7682         (ix86_output_indirect_branch_via_reg): Likewise.
7683         (ix86_output_indirect_branch_via_push): Likewise.
7684         (output_indirect_thunk_function): Create alias for function
7685         return thunk if regno < 0.
7686         (ix86_output_function_return): New function.
7687         (ix86_handle_fndecl_attribute): Handle function_return.
7688         (ix86_attribute_table): Add function_return.
7689         * config/i386/i386.h (machine_function): Add
7690         function_return_type.
7691         * config/i386/i386.md (simple_return_internal): Use
7692         ix86_output_function_return.
7693         (simple_return_internal_long): Likewise.
7694         * config/i386/i386.opt (mfunction-return=): New option.
7695         (indirect_branch): Mention -mfunction-return=.
7696         * doc/extend.texi: Document function_return function attribute.
7697         * doc/invoke.texi: Document -mfunction-return= option.
7698
7699 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
7700
7701         * config/i386/i386-opts.h (indirect_branch): New.
7702         * config/i386/i386-protos.h (ix86_output_indirect_jmp): Likewise.
7703         * config/i386/i386.c (ix86_using_red_zone): Disallow red-zone
7704         with local indirect jump when converting indirect call and jump.
7705         (ix86_set_indirect_branch_type): New.
7706         (ix86_set_current_function): Call ix86_set_indirect_branch_type.
7707         (indirectlabelno): New.
7708         (indirect_thunk_needed): Likewise.
7709         (indirect_thunk_bnd_needed): Likewise.
7710         (indirect_thunks_used): Likewise.
7711         (indirect_thunks_bnd_used): Likewise.
7712         (INDIRECT_LABEL): Likewise.
7713         (indirect_thunk_name): Likewise.
7714         (output_indirect_thunk): Likewise.
7715         (output_indirect_thunk_function): Likewise.
7716         (ix86_output_indirect_branch_via_reg): Likewise.
7717         (ix86_output_indirect_branch_via_push): Likewise.
7718         (ix86_output_indirect_branch): Likewise.
7719         (ix86_output_indirect_jmp): Likewise.
7720         (ix86_code_end): Call output_indirect_thunk_function if needed.
7721         (ix86_output_call_insn): Call ix86_output_indirect_branch if
7722         needed.
7723         (ix86_handle_fndecl_attribute): Handle indirect_branch.
7724         (ix86_attribute_table): Add indirect_branch.
7725         * config/i386/i386.h (machine_function): Add indirect_branch_type
7726         and has_local_indirect_jump.
7727         * config/i386/i386.md (indirect_jump): Set has_local_indirect_jump
7728         to true.
7729         (tablejump): Likewise.
7730         (*indirect_jump): Use ix86_output_indirect_jmp.
7731         (*tablejump_1): Likewise.
7732         (simple_return_indirect_internal): Likewise.
7733         * config/i386/i386.opt (mindirect-branch=): New option.
7734         (indirect_branch): New.
7735         (keep): Likewise.
7736         (thunk): Likewise.
7737         (thunk-inline): Likewise.
7738         (thunk-extern): Likewise.
7739         * doc/extend.texi: Document indirect_branch function attribute.
7740         * doc/invoke.texi: Document -mindirect-branch= option.
7741
7742 2018-01-14  Jan Hubicka  <hubicka@ucw.cz>
7743
7744         PR ipa/83051
7745         * ipa-inline.c (edge_badness): Tolerate roundoff errors.
7746
7747 2018-01-14  Richard Sandiford  <richard.sandiford@linaro.org>
7748
7749         * ipa-inline.c (want_inline_small_function_p): Return false if
7750         inlining has already failed with CIF_FINAL_ERROR.
7751         (update_caller_keys): Call want_inline_small_function_p before
7752         can_inline_edge_p.
7753         (update_callee_keys): Likewise.
7754
7755 2018-01-10  Kelvin Nilsen  <kelvin@gcc.gnu.org>
7756
7757         * config/rs6000/rs6000-p8swap.c (rs6000_sum_of_two_registers_p):
7758         New function.
7759         (rs6000_quadword_masked_address_p): Likewise.
7760         (quad_aligned_load_p): Likewise.
7761         (quad_aligned_store_p): Likewise.
7762         (const_load_sequence_p): Add comment to describe the outer-most loop.
7763         (mimic_memory_attributes_and_flags): New function.
7764         (rs6000_gen_stvx): Likewise.
7765         (replace_swapped_aligned_store): Likewise.
7766         (rs6000_gen_lvx): Likewise.
7767         (replace_swapped_aligned_load): Likewise.
7768         (replace_swapped_load_constant): Capitalize argument name in
7769         comment describing this function.
7770         (rs6000_analyze_swaps): Add a third pass to search for vector loads
7771         and stores that access quad-word aligned addresses and replace
7772         with stvx or lvx instructions when appropriate.
7773         * config/rs6000/rs6000-protos.h (rs6000_sum_of_two_registers_p):
7774         New function prototype.
7775         (rs6000_quadword_masked_address_p): Likewise.
7776         (rs6000_gen_lvx): Likewise.
7777         (rs6000_gen_stvx): Likewise.
7778         * config/rs6000/vsx.md (*vsx_le_perm_load_<mode>): For modes
7779         VSX_D (V2DF, V2DI), modify this split to select lvx instruction
7780         when memory address is aligned.
7781         (*vsx_le_perm_load_<mode>): For modes VSX_W (V4SF, V4SI), modify
7782         this split to select lvx instruction when memory address is aligned.
7783         (*vsx_le_perm_load_v8hi): Modify this split to select lvx
7784         instruction when memory address is aligned.
7785         (*vsx_le_perm_load_v16qi): Likewise.
7786         (four unnamed splitters): Modify to select the stvx instruction
7787         when memory is aligned.
7788
7789 2018-01-13  Jan Hubicka  <hubicka@ucw.cz>
7790
7791         * predict.c (determine_unlikely_bbs): Handle correctly BBs
7792         which appears in the queue multiple times.
7793
7794 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7795             Alan Hayward  <alan.hayward@arm.com>
7796             David Sherwood  <david.sherwood@arm.com>
7797
7798         * tree-vectorizer.h (vec_lower_bound): New structure.
7799         (_loop_vec_info): Add check_nonzero and lower_bounds.
7800         (LOOP_VINFO_CHECK_NONZERO): New macro.
7801         (LOOP_VINFO_LOWER_BOUNDS): Likewise.
7802         (LOOP_REQUIRES_VERSIONING_FOR_ALIAS): Check lower_bounds too.
7803         * tree-data-ref.h (dr_with_seg_len): Add access_size and align
7804         fields.  Make seg_len the distance travelled, not including the
7805         access size.
7806         (dr_direction_indicator): Declare.
7807         (dr_zero_step_indicator): Likewise.
7808         (dr_known_forward_stride_p): Likewise.
7809         * tree-data-ref.c: Include stringpool.h, tree-vrp.h and
7810         tree-ssanames.h.
7811         (runtime_alias_check_p): Allow runtime alias checks with
7812         variable strides.
7813         (operator ==): Compare access_size and align.
7814         (prune_runtime_alias_test_list): Rework for new distinction between
7815         the access_size and seg_len.
7816         (create_intersect_range_checks_index): Likewise.  Cope with polynomial
7817         segment lengths.
7818         (get_segment_min_max): New function.
7819         (create_intersect_range_checks): Use it.
7820         (dr_step_indicator): New function.
7821         (dr_direction_indicator): Likewise.
7822         (dr_zero_step_indicator): Likewise.
7823         (dr_known_forward_stride_p): Likewise.
7824         * tree-loop-distribution.c (data_ref_segment_size): Return
7825         DR_STEP * (niters - 1).
7826         (compute_alias_check_pairs): Update call to the dr_with_seg_len
7827         constructor.
7828         * tree-vect-data-refs.c (vect_check_nonzero_value): New function.
7829         (vect_preserves_scalar_order_p): New function, split out from...
7830         (vect_analyze_data_ref_dependence): ...here.  Check for zero steps.
7831         (vect_vfa_segment_size): Return DR_STEP * (length_factor - 1).
7832         (vect_vfa_access_size): New function.
7833         (vect_vfa_align): Likewise.
7834         (vect_compile_time_alias): Take access_size_a and access_b arguments.
7835         (dump_lower_bound): New function.
7836         (vect_check_lower_bound): Likewise.
7837         (vect_small_gap_p): Likewise.
7838         (vectorizable_with_step_bound_p): Likewise.
7839         (vect_prune_runtime_alias_test_list): Ignore cross-iteration
7840         depencies if the vectorization factor is 1.  Convert the checks
7841         for nonzero steps into checks on the bounds of DR_STEP.  Try using
7842         a bunds check for variable steps if the minimum required step is
7843         relatively small. Update calls to the dr_with_seg_len
7844         constructor and to vect_compile_time_alias.
7845         * tree-vect-loop-manip.c (vect_create_cond_for_lower_bounds): New
7846         function.
7847         (vect_loop_versioning): Call it.
7848         * tree-vect-loop.c (vect_analyze_loop_2): Clear LOOP_VINFO_LOWER_BOUNDS
7849         when retrying.
7850         (vect_estimate_min_profitable_iters): Account for any bounds checks.
7851
7852 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7853             Alan Hayward  <alan.hayward@arm.com>
7854             David Sherwood  <david.sherwood@arm.com>
7855
7856         * doc/sourcebuild.texi (vect_scatter_store): Document.
7857         * optabs.def (scatter_store_optab, mask_scatter_store_optab): New
7858         optabs.
7859         * doc/md.texi (scatter_store@var{m}, mask_scatter_store@var{m}):
7860         Document.
7861         * genopinit.c (main): Add supports_vec_scatter_store and
7862         supports_vec_scatter_store_cached to target_optabs.
7863         * gimple.h (gimple_expr_type): Handle IFN_SCATTER_STORE and
7864         IFN_MASK_SCATTER_STORE.
7865         * internal-fn.def (SCATTER_STORE, MASK_SCATTER_STORE): New internal
7866         functions.
7867         * internal-fn.h (internal_store_fn_p): Declare.
7868         (internal_fn_stored_value_index): Likewise.
7869         * internal-fn.c (scatter_store_direct): New macro.
7870         (expand_scatter_store_optab_fn): New function.
7871         (direct_scatter_store_optab_supported_p): New macro.
7872         (internal_store_fn_p): New function.
7873         (internal_gather_scatter_fn_p): Handle IFN_SCATTER_STORE and
7874         IFN_MASK_SCATTER_STORE.
7875         (internal_fn_mask_index): Likewise.
7876         (internal_fn_stored_value_index): New function.
7877         (internal_gather_scatter_fn_supported_p): Adjust operand numbers
7878         for scatter stores.
7879         * optabs-query.h (supports_vec_scatter_store_p): Declare.
7880         * optabs-query.c (supports_vec_scatter_store_p): New function.
7881         * tree-vectorizer.h (vect_get_store_rhs): Declare.
7882         * tree-vect-data-refs.c (vect_analyze_data_ref_access): Return
7883         true for scatter stores.
7884         (vect_gather_scatter_fn_p): Handle scatter stores too.
7885         (vect_check_gather_scatter): Consider using scatter stores if
7886         supports_vec_scatter_store_p.
7887         * tree-vect-patterns.c (vect_try_gather_scatter_pattern): Handle
7888         scatter stores too.
7889         * tree-vect-stmts.c (exist_non_indexing_operands_for_use_p): Use
7890         internal_fn_stored_value_index.
7891         (check_load_store_masking): Handle scatter stores too.
7892         (vect_get_store_rhs): Make public.
7893         (vectorizable_call): Use internal_store_fn_p.
7894         (vectorizable_store): Handle scatter store internal functions.
7895         (vect_transform_stmt): Compare GROUP_STORE_COUNT with GROUP_SIZE
7896         when deciding whether the end of the group has been reached.
7897         * config/aarch64/aarch64.md (UNSPEC_ST1_SCATTER): New unspec.
7898         * config/aarch64/aarch64-sve.md (scatter_store<mode>): New expander.
7899         (mask_scatter_store<mode>): New insns.
7900
7901 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7902             Alan Hayward  <alan.hayward@arm.com>
7903             David Sherwood  <david.sherwood@arm.com>
7904
7905         * tree-vectorizer.h (vect_gather_scatter_fn_p): Declare.
7906         * tree-vect-data-refs.c (vect_gather_scatter_fn_p): Make public.
7907         * tree-vect-stmts.c (vect_truncate_gather_scatter_offset): New
7908         function.
7909         (vect_use_strided_gather_scatters_p): Take a masked_p argument.
7910         Use vect_truncate_gather_scatter_offset if we can't treat the
7911         operation as a normal gather load or scatter store.
7912         (get_group_load_store_type): Take the gather_scatter_info
7913         as argument.  Try using a gather load or scatter store for
7914         single-element groups.
7915         (get_load_store_type): Update calls to get_group_load_store_type
7916         and vect_use_strided_gather_scatters_p.
7917
7918 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7919             Alan Hayward  <alan.hayward@arm.com>
7920             David Sherwood  <david.sherwood@arm.com>
7921
7922         * tree-vectorizer.h (vect_create_data_ref_ptr): Take an extra
7923         optional tree argument.
7924         * tree-vect-data-refs.c (vect_check_gather_scatter): Check for
7925         null target hooks.
7926         (vect_create_data_ref_ptr): Take the iv_step as an optional argument,
7927         but continue to use the current value as a fallback.
7928         (bump_vector_ptr): Use operand_equal_p rather than tree_int_cst_compare
7929         to compare the updates.
7930         * tree-vect-stmts.c (vect_use_strided_gather_scatters_p): New function.
7931         (get_load_store_type): Use it when handling a strided access.
7932         (vect_get_strided_load_store_ops): New function.
7933         (vect_get_data_ptr_increment): Likewise.
7934         (vectorizable_load): Handle strided gather loads.  Always pass
7935         a step to vect_create_data_ref_ptr and bump_vector_ptr.
7936
7937 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7938             Alan Hayward  <alan.hayward@arm.com>
7939             David Sherwood  <david.sherwood@arm.com>
7940
7941         * doc/md.texi (gather_load@var{m}): Document.
7942         (mask_gather_load@var{m}): Likewise.
7943         * genopinit.c (main): Add supports_vec_gather_load and
7944         supports_vec_gather_load_cached to target_optabs.
7945         * optabs-tree.c (init_tree_optimization_optabs): Use
7946         ggc_cleared_alloc to allocate target_optabs.
7947         * optabs.def (gather_load_optab, mask_gather_laod_optab): New optabs.
7948         * internal-fn.def (GATHER_LOAD, MASK_GATHER_LOAD): New internal
7949         functions.
7950         * internal-fn.h (internal_load_fn_p): Declare.
7951         (internal_gather_scatter_fn_p): Likewise.
7952         (internal_fn_mask_index): Likewise.
7953         (internal_gather_scatter_fn_supported_p): Likewise.
7954         * internal-fn.c (gather_load_direct): New macro.
7955         (expand_gather_load_optab_fn): New function.
7956         (direct_gather_load_optab_supported_p): New macro.
7957         (direct_internal_fn_optab): New function.
7958         (internal_load_fn_p): Likewise.
7959         (internal_gather_scatter_fn_p): Likewise.
7960         (internal_fn_mask_index): Likewise.
7961         (internal_gather_scatter_fn_supported_p): Likewise.
7962         * optabs-query.c (supports_at_least_one_mode_p): New function.
7963         (supports_vec_gather_load_p): Likewise.
7964         * optabs-query.h (supports_vec_gather_load_p): Declare.
7965         * tree-vectorizer.h (gather_scatter_info): Add ifn, element_type
7966         and memory_type field.
7967         (NUM_PATTERNS): Bump to 15.
7968         * tree-vect-data-refs.c: Include internal-fn.h.
7969         (vect_gather_scatter_fn_p): New function.
7970         (vect_describe_gather_scatter_call): Likewise.
7971         (vect_check_gather_scatter): Try using internal functions for
7972         gather loads.  Recognize existing calls to a gather load function.
7973         (vect_analyze_data_refs): Consider using gather loads if
7974         supports_vec_gather_load_p.
7975         * tree-vect-patterns.c (vect_get_load_store_mask): New function.
7976         (vect_get_gather_scatter_offset_type): Likewise.
7977         (vect_convert_mask_for_vectype): Likewise.
7978         (vect_add_conversion_to_patterm): Likewise.
7979         (vect_try_gather_scatter_pattern): Likewise.
7980         (vect_recog_gather_scatter_pattern): New pattern recognizer.
7981         (vect_vect_recog_func_ptrs): Add it.
7982         * tree-vect-stmts.c (exist_non_indexing_operands_for_use_p): Use
7983         internal_fn_mask_index and internal_gather_scatter_fn_p.
7984         (check_load_store_masking): Take the gather_scatter_info as an
7985         argument and handle gather loads.
7986         (vect_get_gather_scatter_ops): New function.
7987         (vectorizable_call): Check internal_load_fn_p.
7988         (vectorizable_load): Likewise.  Handle gather load internal
7989         functions.
7990         (vectorizable_store): Update call to check_load_store_masking.
7991         * config/aarch64/aarch64.md (UNSPEC_LD1_GATHER): New unspec.
7992         * config/aarch64/iterators.md (SVE_S, SVE_D): New mode iterators.
7993         * config/aarch64/predicates.md (aarch64_gather_scale_operand_w)
7994         (aarch64_gather_scale_operand_d): New predicates.
7995         * config/aarch64/aarch64-sve.md (gather_load<mode>): New expander.
7996         (mask_gather_load<mode>): New insns.
7997
7998 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
7999             Alan Hayward  <alan.hayward@arm.com>
8000             David Sherwood  <david.sherwood@arm.com>
8001
8002         * optabs.def (fold_left_plus_optab): New optab.
8003         * doc/md.texi (fold_left_plus_@var{m}): Document.
8004         * internal-fn.def (IFN_FOLD_LEFT_PLUS): New internal function.
8005         * internal-fn.c (fold_left_direct): Define.
8006         (expand_fold_left_optab_fn): Likewise.
8007         (direct_fold_left_optab_supported_p): Likewise.
8008         * fold-const-call.c (fold_const_fold_left): New function.
8009         (fold_const_call): Use it to fold CFN_FOLD_LEFT_PLUS.
8010         * tree-parloops.c (valid_reduction_p): New function.
8011         (gather_scalar_reductions): Use it.
8012         * tree-vectorizer.h (FOLD_LEFT_REDUCTION): New vect_reduction_type.
8013         (vect_finish_replace_stmt): Declare.
8014         * tree-vect-loop.c (fold_left_reduction_fn): New function.
8015         (needs_fold_left_reduction_p): New function, split out from...
8016         (vect_is_simple_reduction): ...here.  Accept reductions that
8017         forbid reassociation, but give them type FOLD_LEFT_REDUCTION.
8018         (vect_force_simple_reduction): Also store the reduction type in
8019         the assignment's STMT_VINFO_REDUC_TYPE.
8020         (vect_model_reduction_cost): Handle FOLD_LEFT_REDUCTION.
8021         (merge_with_identity): New function.
8022         (vect_expand_fold_left): Likewise.
8023         (vectorize_fold_left_reduction): Likewise.
8024         (vectorizable_reduction): Handle FOLD_LEFT_REDUCTION.  Leave the
8025         scalar phi in place for it.  Check for target support and reject
8026         cases that would reassociate the operation.  Defer the transform
8027         phase to vectorize_fold_left_reduction.
8028         * config/aarch64/aarch64.md (UNSPEC_FADDA): New unspec.
8029         * config/aarch64/aarch64-sve.md (fold_left_plus_<mode>): New expander.
8030         (*fold_left_plus_<mode>, *pred_fold_left_plus_<mode>): New insns.
8031
8032 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8033
8034         * tree-if-conv.c (predicate_mem_writes): Remove redundant
8035         call to ifc_temp_var.
8036
8037 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8038             Alan Hayward  <alan.hayward@arm.com>
8039             David Sherwood  <david.sherwood@arm.com>
8040
8041         * target.def (legitimize_address_displacement): Take the original
8042         offset as a poly_int.
8043         * targhooks.h (default_legitimize_address_displacement): Update
8044         accordingly.
8045         * targhooks.c (default_legitimize_address_displacement): Likewise.
8046         * doc/tm.texi: Regenerate.
8047         * lra-constraints.c (base_plus_disp_to_reg): Take the displacement
8048         as an argument, moving assert of ad->disp == ad->disp_term to...
8049         (process_address_1): ...here.  Update calls to base_plus_disp_to_reg.
8050         Try calling targetm.legitimize_address_displacement before expanding
8051         the address rather than afterwards, and adjust for the new interface.
8052         * config/aarch64/aarch64.c (aarch64_legitimize_address_displacement):
8053         Match the new hook interface.  Handle SVE addresses.
8054         * config/sh/sh.c (sh_legitimize_address_displacement): Make the
8055         new hook interface.
8056
8057 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8058
8059         * Makefile.in (OBJS): Add early-remat.o.
8060         * target.def (select_early_remat_modes): New hook.
8061         * doc/tm.texi.in (TARGET_SELECT_EARLY_REMAT_MODES): New hook.
8062         * doc/tm.texi: Regenerate.
8063         * targhooks.h (default_select_early_remat_modes): Declare.
8064         * targhooks.c (default_select_early_remat_modes): New function.
8065         * timevar.def (TV_EARLY_REMAT): New timevar.
8066         * passes.def (pass_early_remat): New pass.
8067         * tree-pass.h (make_pass_early_remat): Declare.
8068         * early-remat.c: New file.
8069         * config/aarch64/aarch64.c (aarch64_select_early_remat_modes): New
8070         function.
8071         (TARGET_SELECT_EARLY_REMAT_MODES): Define.
8072
8073 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8074             Alan Hayward  <alan.hayward@arm.com>
8075             David Sherwood  <david.sherwood@arm.com>
8076
8077         * tree-vect-loop-manip.c (vect_gen_scalar_loop_niters): Replace
8078         vfm1 with a bound_epilog parameter.
8079         (vect_do_peeling): Update calls accordingly, and move the prologue
8080         call earlier in the function.  Treat the base bound_epilog as 0 for
8081         fully-masked loops and retain vf - 1 for other loops.  Add 1 to
8082         this base when peeling for gaps.
8083         * tree-vect-loop.c (vect_analyze_loop_2): Allow peeling for gaps
8084         with fully-masked loops.
8085         (vect_estimate_min_profitable_iters): Handle the single peeled
8086         iteration in that case.
8087
8088 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8089             Alan Hayward  <alan.hayward@arm.com>
8090             David Sherwood  <david.sherwood@arm.com>
8091
8092         * tree-vect-data-refs.c (vect_analyze_group_access_1): Allow
8093         single-element interleaving even if the size is not a power of 2.
8094         * tree-vect-stmts.c (get_load_store_type): Disallow elementwise
8095         accesses for single-element interleaving if the group size is
8096         not a power of 2.
8097
8098 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8099             Alan Hayward  <alan.hayward@arm.com>
8100             David Sherwood  <david.sherwood@arm.com>
8101
8102         * doc/md.texi (fold_extract_last_@var{m}): Document.
8103         * doc/sourcebuild.texi (vect_fold_extract_last): Likewise.
8104         * optabs.def (fold_extract_last_optab): New optab.
8105         * internal-fn.def (FOLD_EXTRACT_LAST): New internal function.
8106         * internal-fn.c (fold_extract_direct): New macro.
8107         (expand_fold_extract_optab_fn): Likewise.
8108         (direct_fold_extract_optab_supported_p): Likewise.
8109         * tree-vectorizer.h (EXTRACT_LAST_REDUCTION): New vect_reduction_type.
8110         * tree-vect-loop.c (vect_model_reduction_cost): Handle
8111         EXTRACT_LAST_REDUCTION.
8112         (get_initial_def_for_reduction): Do not create an initial vector
8113         for EXTRACT_LAST_REDUCTION reductions.
8114         (vectorizable_reduction): Leave the scalar phi in place for
8115         EXTRACT_LAST_REDUCTIONs.  Try using EXTRACT_LAST_REDUCTION
8116         ahead of INTEGER_INDUC_COND_REDUCTION.  Do not check for an
8117         epilogue code for EXTRACT_LAST_REDUCTION and defer the
8118         transform phase to vectorizable_condition.
8119         * tree-vect-stmts.c (vect_finish_stmt_generation_1): New function,
8120         split out from...
8121         (vect_finish_stmt_generation): ...here.
8122         (vect_finish_replace_stmt): New function.
8123         (vectorizable_condition): Handle EXTRACT_LAST_REDUCTION.
8124         * config/aarch64/aarch64-sve.md (fold_extract_last_<mode>): New
8125         pattern.
8126         * config/aarch64/aarch64.md (UNSPEC_CLASTB): New unspec.
8127
8128 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8129             Alan Hayward  <alan.hayward@arm.com>
8130             David Sherwood  <david.sherwood@arm.com>
8131
8132         * doc/md.texi (extract_last_@var{m}): Document.
8133         * optabs.def (extract_last_optab): New optab.
8134         * internal-fn.def (EXTRACT_LAST): New internal function.
8135         * internal-fn.c (cond_unary_direct): New macro.
8136         (expand_cond_unary_optab_fn): Likewise.
8137         (direct_cond_unary_optab_supported_p): Likewise.
8138         * tree-vect-loop.c (vectorizable_live_operation): Allow fully-masked
8139         loops using EXTRACT_LAST.
8140         * config/aarch64/aarch64-sve.md (aarch64_sve_lastb<mode>): Rename to...
8141         (extract_last_<mode>): ...this optab.
8142         (vec_extract<mode><Vel>): Update accordingly.
8143
8144 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8145             Alan Hayward  <alan.hayward@arm.com>
8146             David Sherwood  <david.sherwood@arm.com>
8147
8148         * target.def (empty_mask_is_expensive): New hook.
8149         * doc/tm.texi.in (TARGET_VECTORIZE_EMPTY_MASK_IS_EXPENSIVE): New hook.
8150         * doc/tm.texi: Regenerate.
8151         * targhooks.h (default_empty_mask_is_expensive): Declare.
8152         * targhooks.c (default_empty_mask_is_expensive): New function.
8153         * tree-vectorizer.c (vectorize_loops): Only call optimize_mask_stores
8154         if the target says that empty masks are expensive.
8155         * config/aarch64/aarch64.c (aarch64_empty_mask_is_expensive):
8156         New function.
8157         (TARGET_VECTORIZE_EMPTY_MASK_IS_EXPENSIVE): Redefine.
8158
8159 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8160             Alan Hayward  <alan.hayward@arm.com>
8161             David Sherwood  <david.sherwood@arm.com>
8162
8163         * tree-vectorizer.h (_loop_vec_info::mask_skip_niters): New field.
8164         (LOOP_VINFO_MASK_SKIP_NITERS): New macro.
8165         (vect_use_loop_mask_for_alignment_p): New function.
8166         (vect_prepare_for_masked_peels, vect_gen_while_not): Declare.
8167         * tree-vect-loop-manip.c (vect_set_loop_masks_directly): Add an
8168         niters_skip argument.  Make sure that the first niters_skip elements
8169         of the first iteration are inactive.
8170         (vect_set_loop_condition_masked): Handle LOOP_VINFO_MASK_SKIP_NITERS.
8171         Update call to vect_set_loop_masks_directly.
8172         (get_misalign_in_elems): New function, split out from...
8173         (vect_gen_prolog_loop_niters): ...here.
8174         (vect_update_init_of_dr): Take a code argument that specifies whether
8175         the adjustment should be added or subtracted.
8176         (vect_update_init_of_drs): Likewise.
8177         (vect_prepare_for_masked_peels): New function.
8178         (vect_do_peeling): Skip prologue peeling if we're using a mask
8179         instead.  Update call to vect_update_inits_of_drs.
8180         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
8181         mask_skip_niters.
8182         (vect_analyze_loop_2): Allow fully-masked loops with peeling for
8183         alignment.  Do not include the number of peeled iterations in
8184         the minimum threshold in that case.
8185         (vectorizable_induction): Adjust the start value down by
8186         LOOP_VINFO_MASK_SKIP_NITERS iterations.
8187         (vect_transform_loop): Call vect_prepare_for_masked_peels.
8188         Take the number of skipped iterations into account when calculating
8189         the loop bounds.
8190         * tree-vect-stmts.c (vect_gen_while_not): New function.
8191
8192 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8193             Alan Hayward  <alan.hayward@arm.com>
8194             David Sherwood  <david.sherwood@arm.com>
8195
8196         * doc/sourcebuild.texi (vect_fully_masked): Document.
8197         * params.def (PARAM_MIN_VECT_LOOP_BOUND): Change minimum and
8198         default value to 0.
8199         * tree-vect-loop.c (vect_analyze_loop_costing): New function,
8200         split out from...
8201         (vect_analyze_loop_2): ...here. Don't check the vectorization
8202         factor against the number of loop iterations if the loop is
8203         fully-masked.
8204
8205 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8206             Alan Hayward  <alan.hayward@arm.com>
8207             David Sherwood  <david.sherwood@arm.com>
8208
8209         * tree-ssa-loop-ivopts.c (USE_ADDRESS): Split into...
8210         (USE_REF_ADDRESS, USE_PTR_ADDRESS): ...these new use types.
8211         (dump_groups): Update accordingly.
8212         (iv_use::mem_type): New member variable.
8213         (address_p): New function.
8214         (record_use): Add a mem_type argument and initialize the new
8215         mem_type field.
8216         (record_group_use): Add a mem_type argument.  Use address_p.
8217         Remove obsolete null checks of base_object.  Update call to record_use.
8218         (find_interesting_uses_op): Update call to record_group_use.
8219         (find_interesting_uses_cond): Likewise.
8220         (find_interesting_uses_address): Likewise.
8221         (get_mem_type_for_internal_fn): New function.
8222         (find_address_like_use): Likewise.
8223         (find_interesting_uses_stmt): Try find_address_like_use before
8224         calling find_interesting_uses_op.
8225         (addr_offset_valid_p): Use the iv mem_type field as the type
8226         of the addressed memory.
8227         (add_autoinc_candidates): Likewise.
8228         (get_address_cost): Likewise.
8229         (split_small_address_groups_p): Use address_p.
8230         (split_address_groups): Likewise.
8231         (add_iv_candidate_for_use): Likewise.
8232         (autoinc_possible_for_pair): Likewise.
8233         (rewrite_groups): Likewise.
8234         (get_use_type): Check for USE_REF_ADDRESS instead of USE_ADDRESS.
8235         (determine_group_iv_cost): Update after split of USE_ADDRESS.
8236         (get_alias_ptr_type_for_ptr_address): New function.
8237         (rewrite_use_address): Rewrite address uses in calls that were
8238         identified by find_address_like_use.
8239
8240 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8241             Alan Hayward  <alan.hayward@arm.com>
8242             David Sherwood  <david.sherwood@arm.com>
8243
8244         * expr.c (expand_expr_addr_expr_1): Handle ADDR_EXPRs of
8245         TARGET_MEM_REFs.
8246         * gimple-expr.h (is_gimple_addressable: Likewise.
8247         * gimple-expr.c (is_gimple_address): Likewise.
8248         * internal-fn.c (expand_call_mem_ref): New function.
8249         (expand_mask_load_optab_fn): Use it.
8250         (expand_mask_store_optab_fn): Likewise.
8251
8252 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8253             Alan Hayward  <alan.hayward@arm.com>
8254             David Sherwood  <david.sherwood@arm.com>
8255
8256         * doc/md.texi (cond_add@var{mode}, cond_sub@var{mode})
8257         (cond_and@var{mode}, cond_ior@var{mode}, cond_xor@var{mode})
8258         (cond_smin@var{mode}, cond_smax@var{mode}, cond_umin@var{mode})
8259         (cond_umax@var{mode}): Document.
8260         * optabs.def (cond_add_optab, cond_sub_optab, cond_and_optab)
8261         (cond_ior_optab, cond_xor_optab, cond_smin_optab, cond_smax_optab)
8262         (cond_umin_optab, cond_umax_optab): New optabs.
8263         * internal-fn.def (COND_ADD, COND_SUB, COND_MIN, COND_MAX, COND_AND)
8264         (COND_IOR, COND_XOR): New internal functions.
8265         * internal-fn.h (get_conditional_internal_fn): Declare.
8266         * internal-fn.c (cond_binary_direct): New macro.
8267         (expand_cond_binary_optab_fn): Likewise.
8268         (direct_cond_binary_optab_supported_p): Likewise.
8269         (get_conditional_internal_fn): New function.
8270         * tree-vect-loop.c (vectorizable_reduction): Handle fully-masked loops.
8271         Cope with reduction statements that are vectorized as calls rather
8272         than assignments.
8273         * config/aarch64/aarch64-sve.md (cond_<optab><mode>): New insns.
8274         * config/aarch64/iterators.md (UNSPEC_COND_ADD, UNSPEC_COND_SUB)
8275         (UNSPEC_COND_SMAX, UNSPEC_COND_UMAX, UNSPEC_COND_SMIN)
8276         (UNSPEC_COND_UMIN, UNSPEC_COND_AND, UNSPEC_COND_ORR)
8277         (UNSPEC_COND_EOR): New unspecs.
8278         (optab): Add mappings for them.
8279         (SVE_COND_INT_OP, SVE_COND_FP_OP): New int iterators.
8280         (sve_int_op, sve_fp_op): New int attributes.
8281
8282 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8283             Alan Hayward  <alan.hayward@arm.com>
8284             David Sherwood  <david.sherwood@arm.com>
8285
8286         * optabs.def (while_ult_optab): New optab.
8287         * doc/md.texi (while_ult@var{m}@var{n}): Document.
8288         * internal-fn.def (WHILE_ULT): New internal function.
8289         * internal-fn.h (direct_internal_fn_supported_p): New override
8290         that takes two types as argument.
8291         * internal-fn.c (while_direct): New macro.
8292         (expand_while_optab_fn): New function.
8293         (convert_optab_supported_p): Likewise.
8294         (direct_while_optab_supported_p): New macro.
8295         * wide-int.h (wi::udiv_ceil): New function.
8296         * tree-vectorizer.h (rgroup_masks): New structure.
8297         (vec_loop_masks): New typedef.
8298         (_loop_vec_info): Add masks, mask_compare_type, can_fully_mask_p
8299         and fully_masked_p.
8300         (LOOP_VINFO_CAN_FULLY_MASK_P, LOOP_VINFO_FULLY_MASKED_P)
8301         (LOOP_VINFO_MASKS, LOOP_VINFO_MASK_COMPARE_TYPE): New macros.
8302         (vect_max_vf): New function.
8303         (slpeel_make_loop_iterate_ntimes): Delete.
8304         (vect_set_loop_condition, vect_get_loop_mask_type, vect_gen_while)
8305         (vect_halve_mask_nunits, vect_double_mask_nunits): Declare.
8306         (vect_record_loop_mask, vect_get_loop_mask): Likewise.
8307         * tree-vect-loop-manip.c: Include tree-ssa-loop-niter.h,
8308         internal-fn.h, stor-layout.h and optabs-query.h.
8309         (vect_set_loop_mask): New function.
8310         (add_preheader_seq): Likewise.
8311         (add_header_seq): Likewise.
8312         (interleave_supported_p): Likewise.
8313         (vect_maybe_permute_loop_masks): Likewise.
8314         (vect_set_loop_masks_directly): Likewise.
8315         (vect_set_loop_condition_masked): Likewise.
8316         (vect_set_loop_condition_unmasked): New function, split out from
8317         slpeel_make_loop_iterate_ntimes.
8318         (slpeel_make_loop_iterate_ntimes): Rename to..
8319         (vect_set_loop_condition): ...this.  Use vect_set_loop_condition_masked
8320         for fully-masked loops and vect_set_loop_condition_unmasked otherwise.
8321         (vect_do_peeling): Update call accordingly.
8322         (vect_gen_vector_loop_niters): Use VF as the step for fully-masked
8323         loops.
8324         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
8325         mask_compare_type, can_fully_mask_p and fully_masked_p.
8326         (release_vec_loop_masks): New function.
8327         (_loop_vec_info): Use it to free the loop masks.
8328         (can_produce_all_loop_masks_p): New function.
8329         (vect_get_max_nscalars_per_iter): Likewise.
8330         (vect_verify_full_masking): Likewise.
8331         (vect_analyze_loop_2): Save LOOP_VINFO_CAN_FULLY_MASK_P around
8332         retries, and free the mask rgroups before retrying.  Check loop-wide
8333         reasons for disallowing fully-masked loops.  Make the final decision
8334         about whether use a fully-masked loop or not.
8335         (vect_estimate_min_profitable_iters): Do not assume that peeling
8336         for the number of iterations will be needed for fully-masked loops.
8337         (vectorizable_reduction): Disable fully-masked loops.
8338         (vectorizable_live_operation): Likewise.
8339         (vect_halve_mask_nunits): New function.
8340         (vect_double_mask_nunits): Likewise.
8341         (vect_record_loop_mask): Likewise.
8342         (vect_get_loop_mask): Likewise.
8343         (vect_transform_loop): Handle the case in which the final loop
8344         iteration might handle a partial vector.  Call vect_set_loop_condition
8345         instead of slpeel_make_loop_iterate_ntimes.
8346         * tree-vect-stmts.c: Include tree-ssa-loop-niter.h and gimple-fold.h.
8347         (check_load_store_masking): New function.
8348         (prepare_load_store_mask): Likewise.
8349         (vectorizable_store): Handle fully-masked loops.
8350         (vectorizable_load): Likewise.
8351         (supportable_widening_operation): Use vect_halve_mask_nunits for
8352         booleans.
8353         (supportable_narrowing_operation): Likewise vect_double_mask_nunits.
8354         (vect_gen_while): New function.
8355         * config/aarch64/aarch64.md (umax<mode>3): New expander.
8356         (aarch64_uqdec<mode>): New insn.
8357
8358 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8359             Alan Hayward  <alan.hayward@arm.com>
8360             David Sherwood  <david.sherwood@arm.com>
8361
8362         * optabs.def (reduc_and_scal_optab, reduc_ior_scal_optab)
8363         (reduc_xor_scal_optab): New optabs.
8364         * doc/md.texi (reduc_and_scal_@var{m}, reduc_ior_scal_@var{m})
8365         (reduc_xor_scal_@var{m}): Document.
8366         * doc/sourcebuild.texi (vect_logical_reduc): Likewise.
8367         * internal-fn.def (IFN_REDUC_AND, IFN_REDUC_IOR, IFN_REDUC_XOR): New
8368         internal functions.
8369         * fold-const-call.c (fold_const_call): Handle them.
8370         * tree-vect-loop.c (reduction_fn_for_scalar_code): Return the new
8371         internal functions for BIT_AND_EXPR, BIT_IOR_EXPR and BIT_XOR_EXPR.
8372         * config/aarch64/aarch64-sve.md (reduc_<bit_reduc>_scal_<mode>):
8373         (*reduc_<bit_reduc>_scal_<mode>): New patterns.
8374         * config/aarch64/iterators.md (UNSPEC_ANDV, UNSPEC_ORV)
8375         (UNSPEC_XORV): New unspecs.
8376         (optab): Add entries for them.
8377         (BITWISEV): New int iterator.
8378         (bit_reduc_op): New int attributes.
8379
8380 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8381             Alan Hayward  <alan.hayward@arm.com>
8382             David Sherwood  <david.sherwood@arm.com>
8383
8384         * doc/md.texi (vec_shl_insert_@var{m}): New optab.
8385         * internal-fn.def (VEC_SHL_INSERT): New internal function.
8386         * optabs.def (vec_shl_insert_optab): New optab.
8387         * tree-vectorizer.h (can_duplicate_and_interleave_p): Declare.
8388         (duplicate_and_interleave): Likewise.
8389         * tree-vect-loop.c: Include internal-fn.h.
8390         (neutral_op_for_slp_reduction): New function, split out from
8391         get_initial_defs_for_reduction.
8392         (get_initial_def_for_reduction): Handle option 2 for variable-length
8393         vectors by loading the neutral value into a vector and then shifting
8394         the initial value into element 0.
8395         (get_initial_defs_for_reduction): Replace the code argument with
8396         the neutral value calculated by neutral_op_for_slp_reduction.
8397         Use gimple_build_vector for constant-length vectors.
8398         Use IFN_VEC_SHL_INSERT for variable-length vectors if all
8399         but the first group_size elements have a neutral value.
8400         Use duplicate_and_interleave otherwise.
8401         (vect_create_epilog_for_reduction): Take a neutral_op parameter.
8402         Update call to get_initial_defs_for_reduction.  Handle SLP
8403         reductions for variable-length vectors by creating one vector
8404         result for each scalar result, with the elements associated
8405         with other scalar results stubbed out with the neutral value.
8406         (vectorizable_reduction): Call neutral_op_for_slp_reduction.
8407         Require IFN_VEC_SHL_INSERT for double reductions on
8408         variable-length vectors, or SLP reductions that have
8409         a neutral value.  Require can_duplicate_and_interleave_p
8410         support for variable-length unchained SLP reductions if there
8411         is no neutral value, such as for MIN/MAX reductions.  Also require
8412         the number of vector elements to be a multiple of the number of
8413         SLP statements when doing variable-length unchained SLP reductions.
8414         Update call to vect_create_epilog_for_reduction.
8415         * tree-vect-slp.c (can_duplicate_and_interleave_p): Make public
8416         and remove initial values.
8417         (duplicate_and_interleave): Make public.
8418         * config/aarch64/aarch64.md (UNSPEC_INSR): New unspec.
8419         * config/aarch64/aarch64-sve.md (vec_shl_insert_<mode>): New insn.
8420
8421 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8422             Alan Hayward  <alan.hayward@arm.com>
8423             David Sherwood  <david.sherwood@arm.com>
8424
8425         * tree-vect-slp.c: Include gimple-fold.h and internal-fn.h
8426         (can_duplicate_and_interleave_p): New function.
8427         (vect_get_and_check_slp_defs): Take the vector of statements
8428         rather than just the current one.  Remove excess parentheses.
8429         Restriction rejectinon of vect_constant_def and vect_external_def
8430         for variable-length vectors to boolean types, or types for which
8431         can_duplicate_and_interleave_p is false.
8432         (vect_build_slp_tree_2): Update call to vect_get_and_check_slp_defs.
8433         (duplicate_and_interleave): New function.
8434         (vect_get_constant_vectors): Use gimple_build_vector for
8435         constant-length vectors and suitable variable-length constant
8436         vectors.  Use duplicate_and_interleave for other variable-length
8437         vectors.  Don't defer the update when inserting new statements.
8438
8439 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8440             Alan Hayward  <alan.hayward@arm.com>
8441             David Sherwood  <david.sherwood@arm.com>
8442
8443         * tree-vect-loop.c (vect_estimate_min_profitable_iters): Make sure
8444         min_profitable_iters doesn't go negative.
8445
8446 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8447             Alan Hayward  <alan.hayward@arm.com>
8448             David Sherwood  <david.sherwood@arm.com>
8449
8450         * doc/md.texi (vec_mask_load_lanes@var{m}@var{n}): Document.
8451         (vec_mask_store_lanes@var{m}@var{n}): Likewise.
8452         * optabs.def (vec_mask_load_lanes_optab): New optab.
8453         (vec_mask_store_lanes_optab): Likewise.
8454         * internal-fn.def (MASK_LOAD_LANES): New internal function.
8455         (MASK_STORE_LANES): Likewise.
8456         * internal-fn.c (mask_load_lanes_direct): New macro.
8457         (mask_store_lanes_direct): Likewise.
8458         (expand_mask_load_optab_fn): Handle masked operations.
8459         (expand_mask_load_lanes_optab_fn): New macro.
8460         (expand_mask_store_optab_fn): Handle masked operations.
8461         (expand_mask_store_lanes_optab_fn): New macro.
8462         (direct_mask_load_lanes_optab_supported_p): Likewise.
8463         (direct_mask_store_lanes_optab_supported_p): Likewise.
8464         * tree-vectorizer.h (vect_store_lanes_supported): Take a masked_p
8465         parameter.
8466         (vect_load_lanes_supported): Likewise.
8467         * tree-vect-data-refs.c (strip_conversion): New function.
8468         (can_group_stmts_p): Likewise.
8469         (vect_analyze_data_ref_accesses): Use it instead of checking
8470         for a pair of assignments.
8471         (vect_store_lanes_supported): Take a masked_p parameter.
8472         (vect_load_lanes_supported): Likewise.
8473         * tree-vect-loop.c (vect_analyze_loop_2): Update calls to
8474         vect_store_lanes_supported and vect_load_lanes_supported.
8475         * tree-vect-slp.c (vect_analyze_slp_instance): Likewise.
8476         * tree-vect-stmts.c (get_group_load_store_type): Take a masked_p
8477         parameter.  Don't allow gaps for masked accesses.
8478         Use vect_get_store_rhs.  Update calls to vect_store_lanes_supported
8479         and vect_load_lanes_supported.
8480         (get_load_store_type): Take a masked_p parameter and update
8481         call to get_group_load_store_type.
8482         (vectorizable_store): Update call to get_load_store_type.
8483         Handle IFN_MASK_STORE_LANES.
8484         (vectorizable_load): Update call to get_load_store_type.
8485         Handle IFN_MASK_LOAD_LANES.
8486
8487 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8488             Alan Hayward  <alan.hayward@arm.com>
8489             David Sherwood  <david.sherwood@arm.com>
8490
8491         * config/aarch64/aarch64-modes.def: Define x2, x3 and x4 vector
8492         modes for SVE.
8493         * config/aarch64/aarch64-protos.h
8494         (aarch64_sve_struct_memory_operand_p): Declare.
8495         * config/aarch64/iterators.md (SVE_STRUCT): New mode iterator.
8496         (vector_count, insn_length, VSINGLE, vsingle): New mode attributes.
8497         (VPRED, vpred): Handle SVE structure modes.
8498         * config/aarch64/constraints.md (Utx): New constraint.
8499         * config/aarch64/predicates.md (aarch64_sve_struct_memory_operand)
8500         (aarch64_sve_struct_nonimmediate_operand): New predicates.
8501         * config/aarch64/aarch64.md (UNSPEC_LDN, UNSPEC_STN): New unspecs.
8502         * config/aarch64/aarch64-sve.md (mov<mode>, *aarch64_sve_mov<mode>_le)
8503         (*aarch64_sve_mov<mode>_be, pred_mov<mode>): New patterns for
8504         structure modes.  Split into pieces after RA.
8505         (vec_load_lanes<mode><vsingle>, vec_mask_load_lanes<mode><vsingle>)
8506         (vec_store_lanes<mode><vsingle>, vec_mask_store_lanes<mode><vsingle>):
8507         New patterns.
8508         * config/aarch64/aarch64.c (aarch64_classify_vector_mode): Handle
8509         SVE structure modes.
8510         (aarch64_classify_address): Likewise.
8511         (sizetochar): Move earlier in file.
8512         (aarch64_print_operand): Handle SVE register lists.
8513         (aarch64_array_mode): New function.
8514         (aarch64_sve_struct_memory_operand_p): Likewise.
8515         (TARGET_ARRAY_MODE): Redefine.
8516
8517 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8518             Alan Hayward  <alan.hayward@arm.com>
8519             David Sherwood  <david.sherwood@arm.com>
8520
8521         * target.def (array_mode): New target hook.
8522         * doc/tm.texi.in (TARGET_ARRAY_MODE): New hook.
8523         * doc/tm.texi: Regenerate.
8524         * hooks.h (hook_optmode_mode_uhwi_none): Declare.
8525         * hooks.c (hook_optmode_mode_uhwi_none): New function.
8526         * tree-vect-data-refs.c (vect_lanes_optab_supported_p): Use
8527         targetm.array_mode.
8528         * stor-layout.c (mode_for_array): Likewise.  Support polynomial
8529         type sizes.
8530
8531 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8532             Alan Hayward  <alan.hayward@arm.com>
8533             David Sherwood  <david.sherwood@arm.com>
8534
8535         * fold-const.c (fold_binary_loc): Check the argument types
8536         rather than the result type when testing for a vector operation.
8537
8538 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8539
8540         * doc/tm.texi.in (DWARF_LAZY_REGISTER_VALUE): Document.
8541         * doc/tm.texi: Regenerate.
8542
8543 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8544             Alan Hayward  <alan.hayward@arm.com>
8545             David Sherwood  <david.sherwood@arm.com>
8546
8547         * doc/invoke.texi (-msve-vector-bits=): Document new option.
8548         (sve): Document new AArch64 extension.
8549         * doc/md.texi (w): Extend the description of the AArch64
8550         constraint to include SVE vectors.
8551         (Upl, Upa): Document new AArch64 predicate constraints.
8552         * config/aarch64/aarch64-opts.h (aarch64_sve_vector_bits_enum): New
8553         enum.
8554         * config/aarch64/aarch64.opt (sve_vector_bits): New enum.
8555         (msve-vector-bits=): New option.
8556         * config/aarch64/aarch64-option-extensions.def (fp, simd): Disable
8557         SVE when these are disabled.
8558         (sve): New extension.
8559         * config/aarch64/aarch64-modes.def: Define SVE vector and predicate
8560         modes.  Adjust their number of units based on aarch64_sve_vg.
8561         (MAX_BITSIZE_MODE_ANY_MODE): Define.
8562         * config/aarch64/aarch64-protos.h (ADDR_QUERY_ANY): New
8563         aarch64_addr_query_type.
8564         (aarch64_const_vec_all_same_in_range_p, aarch64_sve_pred_mode)
8565         (aarch64_sve_cnt_immediate_p, aarch64_sve_addvl_addpl_immediate_p)
8566         (aarch64_sve_inc_dec_immediate_p, aarch64_add_offset_temporaries)
8567         (aarch64_split_add_offset, aarch64_output_sve_cnt_immediate)
8568         (aarch64_output_sve_addvl_addpl, aarch64_output_sve_inc_dec_immediate)
8569         (aarch64_output_sve_mov_immediate, aarch64_output_ptrue): Declare.
8570         (aarch64_simd_imm_zero_p): Delete.
8571         (aarch64_check_zero_based_sve_index_immediate): Declare.
8572         (aarch64_sve_index_immediate_p, aarch64_sve_arith_immediate_p)
8573         (aarch64_sve_bitmask_immediate_p, aarch64_sve_dup_immediate_p)
8574         (aarch64_sve_cmp_immediate_p, aarch64_sve_float_arith_immediate_p)
8575         (aarch64_sve_float_mul_immediate_p): Likewise.
8576         (aarch64_classify_symbol): Take the offset as a HOST_WIDE_INT
8577         rather than an rtx.
8578         (aarch64_sve_ld1r_operand_p, aarch64_sve_ldr_operand_p): Declare.
8579         (aarch64_expand_mov_immediate): Take a gen_vec_duplicate callback.
8580         (aarch64_emit_sve_pred_move, aarch64_expand_sve_mem_move): Declare.
8581         (aarch64_expand_sve_vec_cmp_int, aarch64_expand_sve_vec_cmp_float)
8582         (aarch64_expand_sve_vcond, aarch64_expand_sve_vec_perm): Declare.
8583         (aarch64_regmode_natural_size): Likewise.
8584         * config/aarch64/aarch64.h (AARCH64_FL_SVE): New macro.
8585         (AARCH64_FL_V8_3, AARCH64_FL_RCPC, AARCH64_FL_DOTPROD): Shift
8586         left one place.
8587         (AARCH64_ISA_SVE, TARGET_SVE): New macros.
8588         (FIXED_REGISTERS, CALL_USED_REGISTERS, REGISTER_NAMES): Add entries
8589         for VG and the SVE predicate registers.
8590         (V_ALIASES): Add a "z"-prefixed alias.
8591         (FIRST_PSEUDO_REGISTER): Change to P15_REGNUM + 1.
8592         (AARCH64_DWARF_VG, AARCH64_DWARF_P0): New macros.
8593         (PR_REGNUM_P, PR_LO_REGNUM_P): Likewise.
8594         (PR_LO_REGS, PR_HI_REGS, PR_REGS): New reg_classes.
8595         (REG_CLASS_NAMES): Add entries for them.
8596         (REG_CLASS_CONTENTS): Likewise.  Update ALL_REGS to include VG
8597         and the predicate registers.
8598         (aarch64_sve_vg): Declare.
8599         (BITS_PER_SVE_VECTOR, BYTES_PER_SVE_VECTOR, BYTES_PER_SVE_PRED)
8600         (SVE_BYTE_MODE, MAX_COMPILE_TIME_VEC_BYTES): New macros.
8601         (REGMODE_NATURAL_SIZE): Define.
8602         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Handle
8603         SVE macros.
8604         * config/aarch64/aarch64.c: Include cfgrtl.h.
8605         (simd_immediate_info): Add a constructor for series vectors,
8606         and an associated step field.
8607         (aarch64_sve_vg): New variable.
8608         (aarch64_dbx_register_number): Handle VG and the predicate registers.
8609         (aarch64_vect_struct_mode_p, aarch64_vector_mode_p): Delete.
8610         (VEC_ADVSIMD, VEC_SVE_DATA, VEC_SVE_PRED, VEC_STRUCT, VEC_ANY_SVE)
8611         (VEC_ANY_DATA, VEC_STRUCT): New constants.
8612         (aarch64_advsimd_struct_mode_p, aarch64_sve_pred_mode_p)
8613         (aarch64_classify_vector_mode, aarch64_vector_data_mode_p)
8614         (aarch64_sve_data_mode_p, aarch64_sve_pred_mode)
8615         (aarch64_get_mask_mode): New functions.
8616         (aarch64_hard_regno_nregs): Handle SVE data modes for FP_REGS
8617         and FP_LO_REGS.  Handle PR_REGS, PR_LO_REGS and PR_HI_REGS.
8618         (aarch64_hard_regno_mode_ok): Handle VG.  Also handle the SVE
8619         predicate modes and predicate registers.  Explicitly restrict
8620         GPRs to modes of 16 bytes or smaller.  Only allow FP registers
8621         to store a vector mode if it is recognized by
8622         aarch64_classify_vector_mode.
8623         (aarch64_regmode_natural_size): New function.
8624         (aarch64_hard_regno_caller_save_mode): Return the original mode
8625         for predicates.
8626         (aarch64_sve_cnt_immediate_p, aarch64_output_sve_cnt_immediate)
8627         (aarch64_sve_addvl_addpl_immediate_p, aarch64_output_sve_addvl_addpl)
8628         (aarch64_sve_inc_dec_immediate_p, aarch64_output_sve_inc_dec_immediate)
8629         (aarch64_add_offset_1_temporaries, aarch64_offset_temporaries): New
8630         functions.
8631         (aarch64_add_offset): Add a temp2 parameter.  Assert that temp1
8632         does not overlap dest if the function is frame-related.  Handle
8633         SVE constants.
8634         (aarch64_split_add_offset): New function.
8635         (aarch64_add_sp, aarch64_sub_sp): Add temp2 parameters and pass
8636         them aarch64_add_offset.
8637         (aarch64_allocate_and_probe_stack_space): Add a temp2 parameter
8638         and update call to aarch64_sub_sp.
8639         (aarch64_add_cfa_expression): New function.
8640         (aarch64_expand_prologue): Pass extra temporary registers to the
8641         functions above.  Handle the case in which we need to emit new
8642         DW_CFA_expressions for registers that were originally saved
8643         relative to the stack pointer, but now have to be expressed
8644         relative to the frame pointer.
8645         (aarch64_output_mi_thunk): Pass extra temporary registers to the
8646         functions above.
8647         (aarch64_expand_epilogue): Likewise.  Prevent inheritance of
8648         IP0 and IP1 values for SVE frames.
8649         (aarch64_expand_vec_series): New function.
8650         (aarch64_expand_sve_widened_duplicate): Likewise.
8651         (aarch64_expand_sve_const_vector): Likewise.
8652         (aarch64_expand_mov_immediate): Add a gen_vec_duplicate parameter.
8653         Handle SVE constants.  Use emit_move_insn to move a force_const_mem
8654         into the register, rather than emitting a SET directly.
8655         (aarch64_emit_sve_pred_move, aarch64_expand_sve_mem_move)
8656         (aarch64_get_reg_raw_mode, offset_4bit_signed_scaled_p)
8657         (offset_6bit_unsigned_scaled_p, aarch64_offset_7bit_signed_scaled_p)
8658         (offset_9bit_signed_scaled_p): New functions.
8659         (aarch64_replicate_bitmask_imm): New function.
8660         (aarch64_bitmask_imm): Use it.
8661         (aarch64_cannot_force_const_mem): Reject expressions involving
8662         a CONST_POLY_INT.  Update call to aarch64_classify_symbol.
8663         (aarch64_classify_index): Handle SVE indices, by requiring
8664         a plain register index with a scale that matches the element size.
8665         (aarch64_classify_address): Handle SVE addresses.  Assert that
8666         the mode of the address is VOIDmode or an integer mode.
8667         Update call to aarch64_classify_symbol.
8668         (aarch64_classify_symbolic_expression): Update call to
8669         aarch64_classify_symbol.
8670         (aarch64_const_vec_all_in_range_p): New function.
8671         (aarch64_print_vector_float_operand): Likewise.
8672         (aarch64_print_operand): Handle 'N' and 'C'.  Use "zN" rather than
8673         "vN" for FP registers with SVE modes.  Handle (const ...) vectors
8674         and the FP immediates 1.0 and 0.5.
8675         (aarch64_print_address_internal): Handle SVE addresses.
8676         (aarch64_print_operand_address): Use ADDR_QUERY_ANY.
8677         (aarch64_regno_regclass): Handle predicate registers.
8678         (aarch64_secondary_reload): Handle big-endian reloads of SVE
8679         data modes.
8680         (aarch64_class_max_nregs): Handle SVE modes and predicate registers.
8681         (aarch64_rtx_costs): Check for ADDVL and ADDPL instructions.
8682         (aarch64_convert_sve_vector_bits): New function.
8683         (aarch64_override_options): Use it to handle -msve-vector-bits=.
8684         (aarch64_classify_symbol): Take the offset as a HOST_WIDE_INT
8685         rather than an rtx.
8686         (aarch64_legitimate_constant_p): Use aarch64_classify_vector_mode.
8687         Handle SVE vector and predicate modes.  Accept VL-based constants
8688         that need only one temporary register, and VL offsets that require
8689         no temporary registers.
8690         (aarch64_conditional_register_usage): Mark the predicate registers
8691         as fixed if SVE isn't available.
8692         (aarch64_vector_mode_supported_p): Use aarch64_classify_vector_mode.
8693         Return true for SVE vector and predicate modes.
8694         (aarch64_simd_container_mode): Take the number of bits as a poly_int64
8695         rather than an unsigned int.  Handle SVE modes.
8696         (aarch64_preferred_simd_mode): Update call accordingly.  Handle
8697         SVE modes.
8698         (aarch64_autovectorize_vector_sizes): Add BYTES_PER_SVE_VECTOR
8699         if SVE is enabled.
8700         (aarch64_sve_index_immediate_p, aarch64_sve_arith_immediate_p)
8701         (aarch64_sve_bitmask_immediate_p, aarch64_sve_dup_immediate_p)
8702         (aarch64_sve_cmp_immediate_p, aarch64_sve_float_arith_immediate_p)
8703         (aarch64_sve_float_mul_immediate_p): New functions.
8704         (aarch64_sve_valid_immediate): New function.
8705         (aarch64_simd_valid_immediate): Use it as the fallback for SVE vectors.
8706         Explicitly reject structure modes.  Check for INDEX constants.
8707         Handle PTRUE and PFALSE constants.
8708         (aarch64_check_zero_based_sve_index_immediate): New function.
8709         (aarch64_simd_imm_zero_p): Delete.
8710         (aarch64_mov_operand_p): Use aarch64_simd_valid_immediate for
8711         vector modes.  Accept constants in the range of CNT[BHWD].
8712         (aarch64_simd_scalar_immediate_valid_for_move): Explicitly
8713         ask for an Advanced SIMD mode.
8714         (aarch64_sve_ld1r_operand_p, aarch64_sve_ldr_operand_p): New functions.
8715         (aarch64_simd_vector_alignment): Handle SVE predicates.
8716         (aarch64_vectorize_preferred_vector_alignment): New function.
8717         (aarch64_simd_vector_alignment_reachable): Use it instead of
8718         the vector size.
8719         (aarch64_shift_truncation_mask): Use aarch64_vector_data_mode_p.
8720         (aarch64_output_sve_mov_immediate, aarch64_output_ptrue): New
8721         functions.
8722         (MAX_VECT_LEN): Delete.
8723         (expand_vec_perm_d): Add a vec_flags field.
8724         (emit_unspec2, aarch64_expand_sve_vec_perm): New functions.
8725         (aarch64_evpc_trn, aarch64_evpc_uzp, aarch64_evpc_zip)
8726         (aarch64_evpc_ext): Don't apply a big-endian lane correction
8727         for SVE modes.
8728         (aarch64_evpc_rev): Rename to...
8729         (aarch64_evpc_rev_local): ...this.  Use a predicated operation for SVE.
8730         (aarch64_evpc_rev_global): New function.
8731         (aarch64_evpc_dup): Enforce a 64-byte range for SVE DUP.
8732         (aarch64_evpc_tbl): Use MAX_COMPILE_TIME_VEC_BYTES instead of
8733         MAX_VECT_LEN.
8734         (aarch64_evpc_sve_tbl): New function.
8735         (aarch64_expand_vec_perm_const_1): Update after rename of
8736         aarch64_evpc_rev.  Handle SVE permutes too, trying
8737         aarch64_evpc_rev_global and using aarch64_evpc_sve_tbl rather
8738         than aarch64_evpc_tbl.
8739         (aarch64_vectorize_vec_perm_const): Initialize vec_flags.
8740         (aarch64_sve_cmp_operand_p, aarch64_unspec_cond_code)
8741         (aarch64_gen_unspec_cond, aarch64_expand_sve_vec_cmp_int)
8742         (aarch64_emit_unspec_cond, aarch64_emit_unspec_cond_or)
8743         (aarch64_emit_inverted_unspec_cond, aarch64_expand_sve_vec_cmp_float)
8744         (aarch64_expand_sve_vcond): New functions.
8745         (aarch64_modes_tieable_p): Use aarch64_vector_data_mode_p instead
8746         of aarch64_vector_mode_p.
8747         (aarch64_dwarf_poly_indeterminate_value): New function.
8748         (aarch64_compute_pressure_classes): Likewise.
8749         (aarch64_can_change_mode_class): Likewise.
8750         (TARGET_GET_RAW_RESULT_MODE, TARGET_GET_RAW_ARG_MODE): Redefine.
8751         (TARGET_VECTORIZE_PREFERRED_VECTOR_ALIGNMENT): Likewise.
8752         (TARGET_VECTORIZE_GET_MASK_MODE): Likewise.
8753         (TARGET_DWARF_POLY_INDETERMINATE_VALUE): Likewise.
8754         (TARGET_COMPUTE_PRESSURE_CLASSES): Likewise.
8755         (TARGET_CAN_CHANGE_MODE_CLASS): Likewise.
8756         * config/aarch64/constraints.md (Upa, Upl, Uav, Uat, Usv, Usi, Utr)
8757         (Uty, Dm, vsa, vsc, vsd, vsi, vsn, vsl, vsm, vsA, vsM, vsN): New
8758         constraints.
8759         (Dn, Dl, Dr): Accept const as well as const_vector.
8760         (Dz): Likewise.  Compare against CONST0_RTX.
8761         * config/aarch64/iterators.md: Refer to "Advanced SIMD" instead
8762         of "vector" where appropriate.
8763         (SVE_ALL, SVE_BH, SVE_BHS, SVE_BHSI, SVE_HSDI, SVE_HSF, SVE_SD)
8764         (SVE_SDI, SVE_I, SVE_F, PRED_ALL, PRED_BHS): New mode iterators.
8765         (UNSPEC_SEL, UNSPEC_ANDF, UNSPEC_IORF, UNSPEC_XORF, UNSPEC_COND_LT)
8766         (UNSPEC_COND_LE, UNSPEC_COND_EQ, UNSPEC_COND_NE, UNSPEC_COND_GE)
8767         (UNSPEC_COND_GT, UNSPEC_COND_LO, UNSPEC_COND_LS, UNSPEC_COND_HS)
8768         (UNSPEC_COND_HI, UNSPEC_COND_UO): New unspecs.
8769         (Vetype, VEL, Vel, VWIDE, Vwide, vw, vwcore, V_INT_EQUIV)
8770         (v_int_equiv): Extend to SVE modes.
8771         (Vesize, V128, v128, Vewtype, V_FP_EQUIV, v_fp_equiv, VPRED): New
8772         mode attributes.
8773         (LOGICAL_OR, SVE_INT_UNARY, SVE_FP_UNARY): New code iterators.
8774         (optab): Handle popcount, smin, smax, umin, umax, abs and sqrt.
8775         (logical_nn, lr, sve_int_op, sve_fp_op): New code attributs.
8776         (LOGICALF, OPTAB_PERMUTE, UNPACK, UNPACK_UNSIGNED, SVE_COND_INT_CMP)
8777         (SVE_COND_FP_CMP): New int iterators.
8778         (perm_hilo): Handle the new unpack unspecs.
8779         (optab, logicalf_op, su, perm_optab, cmp_op, imm_con): New int
8780         attributes.
8781         * config/aarch64/predicates.md (aarch64_sve_cnt_immediate)
8782         (aarch64_sve_addvl_addpl_immediate, aarch64_split_add_offset_immediate)
8783         (aarch64_pluslong_or_poly_operand, aarch64_nonmemory_operand)
8784         (aarch64_equality_operator, aarch64_constant_vector_operand)
8785         (aarch64_sve_ld1r_operand, aarch64_sve_ldr_operand): New predicates.
8786         (aarch64_sve_nonimmediate_operand): Likewise.
8787         (aarch64_sve_general_operand): Likewise.
8788         (aarch64_sve_dup_operand, aarch64_sve_arith_immediate): Likewise.
8789         (aarch64_sve_sub_arith_immediate, aarch64_sve_inc_dec_immediate)
8790         (aarch64_sve_logical_immediate, aarch64_sve_mul_immediate): Likewise.
8791         (aarch64_sve_dup_immediate, aarch64_sve_cmp_vsc_immediate): Likewise.
8792         (aarch64_sve_cmp_vsd_immediate, aarch64_sve_index_immediate): Likewise.
8793         (aarch64_sve_float_arith_immediate): Likewise.
8794         (aarch64_sve_float_arith_with_sub_immediate): Likewise.
8795         (aarch64_sve_float_mul_immediate, aarch64_sve_arith_operand): Likewise.
8796         (aarch64_sve_add_operand, aarch64_sve_logical_operand): Likewise.
8797         (aarch64_sve_lshift_operand, aarch64_sve_rshift_operand): Likewise.
8798         (aarch64_sve_mul_operand, aarch64_sve_cmp_vsc_operand): Likewise.
8799         (aarch64_sve_cmp_vsd_operand, aarch64_sve_index_operand): Likewise.
8800         (aarch64_sve_float_arith_operand): Likewise.
8801         (aarch64_sve_float_arith_with_sub_operand): Likewise.
8802         (aarch64_sve_float_mul_operand): Likewise.
8803         (aarch64_sve_vec_perm_operand): Likewise.
8804         (aarch64_pluslong_operand): Include aarch64_sve_addvl_addpl_immediate.
8805         (aarch64_mov_operand): Accept const_poly_int and const_vector.
8806         (aarch64_simd_lshift_imm, aarch64_simd_rshift_imm): Accept const
8807         as well as const_vector.
8808         (aarch64_simd_imm_zero, aarch64_simd_imm_minus_one): Move earlier
8809         in file.  Use CONST0_RTX and CONSTM1_RTX.
8810         (aarch64_simd_or_scalar_imm_zero): Likewise.  Add match_codes.
8811         (aarch64_simd_reg_or_zero): Accept const as well as const_vector.
8812         Use aarch64_simd_imm_zero.
8813         * config/aarch64/aarch64-sve.md: New file.
8814         * config/aarch64/aarch64.md: Include it.
8815         (VG_REGNUM, P0_REGNUM, P7_REGNUM, P15_REGNUM): New register numbers.
8816         (UNSPEC_REV, UNSPEC_LD1_SVE, UNSPEC_ST1_SVE, UNSPEC_MERGE_PTRUE)
8817         (UNSPEC_PTEST_PTRUE, UNSPEC_UNPACKSHI, UNSPEC_UNPACKUHI)
8818         (UNSPEC_UNPACKSLO, UNSPEC_UNPACKULO, UNSPEC_PACK)
8819         (UNSPEC_FLOAT_CONVERT, UNSPEC_WHILE_LO): New unspec constants.
8820         (sve): New attribute.
8821         (enabled): Disable instructions with the sve attribute unless
8822         TARGET_SVE.
8823         (movqi, movhi): Pass CONST_POLY_INT operaneds through
8824         aarch64_expand_mov_immediate.
8825         (*mov<mode>_aarch64, *movsi_aarch64, *movdi_aarch64): Handle
8826         CNT[BHSD] immediates.
8827         (movti): Split CONST_POLY_INT moves into two halves.
8828         (add<mode>3): Accept aarch64_pluslong_or_poly_operand.
8829         Split additions that need a temporary here if the destination
8830         is the stack pointer.
8831         (*add<mode>3_aarch64): Handle ADDVL and ADDPL immediates.
8832         (*add<mode>3_poly_1): New instruction.
8833         (set_clobber_cc): New expander.
8834
8835 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8836
8837         * simplify-rtx.c (simplify_immed_subreg): Add an inner_bytes
8838         parameter and use it instead of GET_MODE_SIZE (innermode).  Use
8839         inner_bytes * BITS_PER_UNIT instead of GET_MODE_BITSIZE (innermode).
8840         Use CEIL (inner_bytes, GET_MODE_UNIT_SIZE (innermode)) instead of
8841         GET_MODE_NUNITS (innermode).  Also add a first_elem parameter.
8842         Change innermode from fixed_mode_size to machine_mode.
8843         (simplify_subreg): Update call accordingly.  Handle a constant-sized
8844         subreg of a variable-length CONST_VECTOR.
8845
8846 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8847             Alan Hayward  <alan.hayward@arm.com>
8848             David Sherwood  <david.sherwood@arm.com>
8849
8850         * tree-ssa-address.c (mem_ref_valid_without_offset_p): New function.
8851         (add_offset_to_base): New function, split out from...
8852         (create_mem_ref): ...here.  When handling a scale other than 1,
8853         check first whether the address is valid without the offset.
8854         Add it into the base if so, leaving the index and scale as-is.
8855
8856 2018-01-12  Jakub Jelinek  <jakub@redhat.com>
8857
8858         PR c++/83778
8859         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Call
8860         fold_for_warn before checking if arg2 is INTEGER_CST.
8861
8862 2018-01-12  Segher Boessenkool  <segher@kernel.crashing.org>
8863
8864         * config/rs6000/predicates.md (load_multiple_operation): Delete.
8865         (store_multiple_operation): Delete.
8866         * config/rs6000/rs6000-cpus.def (601): Remove MASK_STRING.
8867         * config/rs6000/rs6000-protos.h (rs6000_output_load_multiple): Delete.
8868         * config/rs6000/rs6000-string.c (expand_block_move): Delete everything
8869         guarded by TARGET_STRING.
8870         (rs6000_output_load_multiple): Delete.
8871         * config/rs6000/rs6000.c (rs6000_option_override_internal): Delete
8872         OPTION_MASK_STRING / TARGET_STRING handling.
8873         (print_operand) <'N', 'O'>: Add comment that these are unused now.
8874         (const rs6000_opt_masks) <"string">: Change mask to 0.
8875         * config/rs6000/rs6000.h (TARGET_DEFAULT): Remove MASK_STRING.
8876         (MASK_STRING): Delete.
8877         * config/rs6000/rs6000.md (*mov<mode>_string): Delete TARGET_STRING
8878         parts.  Simplify.
8879         (load_multiple): Delete.
8880         (*ldmsi8): Delete.
8881         (*ldmsi7): Delete.
8882         (*ldmsi6): Delete.
8883         (*ldmsi5): Delete.
8884         (*ldmsi4): Delete.
8885         (*ldmsi3): Delete.
8886         (store_multiple): Delete.
8887         (*stmsi8): Delete.
8888         (*stmsi7): Delete.
8889         (*stmsi6): Delete.
8890         (*stmsi5): Delete.
8891         (*stmsi4): Delete.
8892         (*stmsi3): Delete.
8893         (movmemsi_8reg): Delete.
8894         (corresponding unnamed define_insn): Delete.
8895         (movmemsi_6reg): Delete.
8896         (corresponding unnamed define_insn): Delete.
8897         (movmemsi_4reg): Delete.
8898         (corresponding unnamed define_insn): Delete.
8899         (movmemsi_2reg): Delete.
8900         (corresponding unnamed define_insn): Delete.
8901         (movmemsi_1reg): Delete.
8902         (corresponding unnamed define_insn): Delete.
8903         * config/rs6000/rs6000.opt (mno-string): New.
8904         (mstring): Replace by deprecation warning stub.
8905         * doc/invoke.texi (RS/6000 and PowerPC Options): Delete -mstring.
8906
8907 2018-01-12  Jakub Jelinek  <jakub@redhat.com>
8908
8909         * regrename.c (regrename_do_replace): If replacing the same
8910         reg multiple times, try to reuse last created gen_raw_REG.
8911
8912         PR debug/81155
8913         * bb-reorder.c (pass_partition_blocks::gate): In lto don't partition
8914         main to workaround a bug in GDB.
8915
8916 2018-01-12  Tom de Vries  <tom@codesourcery.com>
8917
8918         PR target/83737
8919         * config.gcc (nvptx*-*-*): Set use_gcc_stdint=wrap.
8920
8921 2018-01-12  Vladimir Makarov  <vmakarov@redhat.com>
8922
8923         PR rtl-optimization/80481
8924         * ira-color.c (get_cap_member): New function.
8925         (allocnos_conflict_by_live_ranges_p): Use it.
8926         (slot_coalesced_allocno_live_ranges_intersect_p): Add assert.
8927         (setup_slot_coalesced_allocno_live_ranges): Ditto.
8928
8929 2018-01-12  Uros Bizjak  <ubizjak@gmail.com>
8930
8931         PR target/83628
8932         * config/alpha/alpha.md (*saddsi_1): New insn_ans_split pattern.
8933         (*saddl_se_1): Ditto.
8934         (*ssubsi_1): Ditto.
8935         (*ssubl_se_1): Ditto.
8936
8937 2018-01-12  Richard Sandiford  <richard.sandiford@linaro.org>
8938
8939         * tree-predcom.c (aff_combination_dr_offset): Use wi::to_poly_widest
8940         rather than wi::to_widest for DR_INITs.
8941         * tree-vect-data-refs.c (vect_find_same_alignment_drs): Use
8942         wi::to_poly_offset rather than wi::to_offset for DR_INIT.
8943         (vect_analyze_data_ref_accesses): Require both DR_INITs to be
8944         INTEGER_CSTs.
8945         (vect_analyze_group_access_1): Note that here.
8946
8947 2018-01-12  Richard Sandiford  <richard.sandiford@linaro.org>
8948
8949         * tree-vectorizer.c (get_vec_alignment_for_array_type): Handle
8950         polynomial type sizes.
8951
8952 2018-01-12  Richard Sandiford  <richard.sandiford@linaro.org>
8953
8954         * gimplify.c (gimple_add_tmp_var_fn): Allow variables to have a
8955         poly_uint64 size, rather than requiring an unsigned HOST_WIDE_INT size.
8956         (gimple_add_tmp_var): Likewise.
8957
8958 2018-01-12  Martin Liska  <mliska@suse.cz>
8959
8960         * gimple.c (gimple_alloc_counts): Use uint64_t instead of int.
8961         (gimple_alloc_sizes): Likewise.
8962         (dump_gimple_statistics): Use PRIu64 in printf format.
8963         * gimple.h: Change uint64_t to int.
8964
8965 2018-01-12  Martin Liska  <mliska@suse.cz>
8966
8967         * tree-core.h: Use uint64_t instead of int.
8968         * tree.c (tree_node_counts): Likewise.
8969         (tree_node_sizes): Likewise.
8970         (dump_tree_statistics): Use PRIu64 in printf format.
8971
8972 2018-01-12  Martin Liska  <mliska@suse.cz>
8973
8974         * Makefile.in: As qsort_chk is implemented in vec.c, add
8975         vec.o to linkage of gencfn-macros.
8976         * tree.c (build_new_poly_int_cst): Add CXX_MEM_STAT_INFO as it's
8977         passing the info to record_node_allocation_statistics.
8978         (test_vector_cst_patterns): Add CXX_MEM_STAT_INFO to declaration
8979         and pass the info.
8980         * ggc-common.c (struct ggc_usage): Add operator== and use
8981         it in operator< and compare function.
8982         * mem-stats.h (struct mem_usage): Likewise.
8983         * vec.c (struct vec_usage): Remove operator< and compare
8984         function. Can be simply inherited.
8985
8986 2018-01-12  Martin Jambor  <mjambor@suse.cz>
8987
8988         PR target/81616
8989         * params.def: New parameter PARAM_AVOID_FMA_MAX_BITS.
8990         * tree-ssa-math-opts.c: Include domwalk.h.
8991         (convert_mult_to_fma_1): New function.
8992         (fma_transformation_info): New type.
8993         (fma_deferring_state): Likewise.
8994         (cancel_fma_deferring): New function.
8995         (result_of_phi): Likewise.
8996         (last_fma_candidate_feeds_initial_phi): Likewise.
8997         (convert_mult_to_fma): Added deferring logic, split actual
8998         transformation to convert_mult_to_fma_1.
8999         (math_opts_dom_walker): New type.
9000         (math_opts_dom_walker::after_dom_children): New method, body moved
9001         here from pass_optimize_widening_mul::execute, added deferring logic
9002         bits.
9003         (pass_optimize_widening_mul::execute): Moved most of code to
9004         math_opts_dom_walker::after_dom_children.
9005         * config/i386/x86-tune.def (X86_TUNE_AVOID_128FMA_CHAINS): New.
9006         * config/i386/i386.c (ix86_option_override_internal): Added
9007         maybe_setting of PARAM_AVOID_FMA_MAX_BITS.
9008
9009 2018-01-12  Richard Biener  <rguenther@suse.de>
9010
9011         PR debug/83157
9012         * dwarf2out.c (gen_variable_die): Do not reset old_die for
9013         inline instance vars.
9014
9015 2018-01-12  Oleg Endo  <olegendo@gcc.gnu.org>
9016
9017         PR target/81819
9018         * config/rx/rx.c (rx_is_restricted_memory_address):
9019         Handle SUBREG case.
9020
9021 2018-01-12  Richard Biener  <rguenther@suse.de>
9022
9023         PR tree-optimization/80846
9024         * target.def (split_reduction): New target hook.
9025         * targhooks.c (default_split_reduction): New function.
9026         * targhooks.h (default_split_reduction): Declare.
9027         * tree-vect-loop.c (vect_create_epilog_for_reduction): If the
9028         target requests first reduce vectors by combining low and high
9029         parts.
9030         * tree-vect-stmts.c (vect_gen_perm_mask_any): Adjust.
9031         (get_vectype_for_scalar_type_and_size): Export.
9032         * tree-vectorizer.h (get_vectype_for_scalar_type_and_size): Declare.
9033         * doc/tm.texi.in (TARGET_VECTORIZE_SPLIT_REDUCTION): Document.
9034         * doc/tm.texi: Regenerate.
9035         * config/i386/i386.c (ix86_split_reduction): Implement
9036         TARGET_VECTORIZE_SPLIT_REDUCTION.
9037
9038 2018-01-12  Eric Botcazou  <ebotcazou@adacore.com>
9039
9040         PR target/83368
9041         * config/sparc/sparc.h (PIC_OFFSET_TABLE_REGNUM): Set to INVALID_REGNUM
9042         in PIC mode except for TARGET_VXWORKS_RTP.
9043         * config/sparc/sparc.c: Include cfgrtl.h.
9044         (TARGET_INIT_PIC_REG): Define.
9045         (TARGET_USE_PSEUDO_PIC_REG): Likewise.
9046         (sparc_pic_register_p): New predicate.
9047         (sparc_legitimate_address_p): Use it.
9048         (sparc_legitimize_pic_address): Likewise.
9049         (sparc_delegitimize_address): Likewise.
9050         (sparc_mode_dependent_address_p): Likewise.
9051         (gen_load_pcrel_sym): Remove 4th parameter.
9052         (load_got_register): Adjust call to above.  Remove obsolete stuff.
9053         (sparc_expand_prologue): Do not call load_got_register here.
9054         (sparc_flat_expand_prologue): Likewise.
9055         (sparc_output_mi_thunk): Set the pic_offset_table_rtx object.
9056         (sparc_use_pseudo_pic_reg): New function.
9057         (sparc_init_pic_reg): Likewise.
9058         * config/sparc/sparc.md (vxworks_load_got): Set the GOT register.
9059         (builtin_setjmp_receiver): Enable only for TARGET_VXWORKS_RTP.
9060
9061 2018-01-12  Christophe Lyon  <christophe.lyon@linaro.org>
9062
9063         * doc/sourcebuild.texi (Effective-Target Keywords, Other attributes):
9064         Add item for branch_cost.
9065
9066 2018-01-12  Eric Botcazou  <ebotcazou@adacore.com>
9067
9068         PR rtl-optimization/83565
9069         * rtlanal.c (nonzero_bits1): On WORD_REGISTER_OPERATIONS machines, do
9070         not extend the result to a larger mode for rotate operations.
9071         (num_sign_bit_copies1): Likewise.
9072
9073 2018-01-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
9074
9075         PR target/40411
9076         * config/sol2.h (STARTFILE_ARCH_SPEC): Don't use with -shared or
9077         -symbolic.
9078         Use values-Xc.o for -pedantic.
9079         Link with values-xpg4.o for C90, values-xpg6.o otherwise.
9080
9081 2018-01-12  Martin Liska  <mliska@suse.cz>
9082
9083         PR ipa/83054
9084         * ipa-devirt.c (final_warning_record::grow_type_warnings):
9085         New function.
9086         (possible_polymorphic_call_targets): Use it.
9087         (ipa_devirt): Likewise.
9088
9089 2018-01-12  Martin Liska  <mliska@suse.cz>
9090
9091         * profile-count.h (enum profile_quality): Use 0 as invalid
9092         enum value of profile_quality.
9093
9094 2018-01-12  Chung-Ju Wu  <jasonwucj@gmail.com>
9095
9096         * doc/invoke.texi (NDS32 Options): Add -mext-perf, -mext-perf2 and
9097         -mext-string options.
9098
9099 2018-01-12  Richard Biener  <rguenther@suse.de>
9100
9101         * lto-streamer-out.c (DFS::DFS_write_tree_body): Process
9102         DECL_DEBUG_EXPR conditional on DECL_HAS_DEBUG_EXPR_P.
9103         * tree-streamer-in.c (lto_input_ts_decl_common_tree_pointers):
9104         Likewise.
9105         * tree-streamer-out.c (write_ts_decl_common_tree_pointers): Likewise.
9106
9107 2018-01-11  Michael Meissner  <meissner@linux.vnet.ibm.com>
9108
9109         * configure.ac (--with-long-double-format): Add support for the
9110         configuration option to change the default long double format on
9111         PowerPC systems.
9112         * config.gcc (powerpc*-linux*-*): Likewise.
9113         * configure: Regenerate.
9114         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): If long
9115         double is IEEE, define __KC__ and __KF__ to allow floatn.h to be
9116         used without modification.
9117
9118 2018-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
9119
9120         * config/rs6000/rs6000-builtin.def (BU_P7_MISC_X): New #define.
9121         (SPEC_BARRIER): New instantiation of BU_P7_MISC_X.
9122         * config/rs6000/rs6000.c (rs6000_expand_builtin): Handle
9123         MISC_BUILTIN_SPEC_BARRIER.
9124         (rs6000_init_builtins): Likewise.
9125         * config/rs6000/rs6000.md (UNSPECV_SPEC_BARRIER): New UNSPECV
9126         enum value.
9127         (speculation_barrier): New define_insn.
9128         * doc/extend.texi: Document __builtin_speculation_barrier.
9129
9130 2018-01-11  Jakub Jelinek  <jakub@redhat.com>
9131
9132         PR target/83203
9133         * config/i386/i386.c (ix86_expand_vector_init_one_nonzero): If one_var
9134         is 0, for V{8,16}S[IF] and V[48]D[IF]mode use gen_vec_set<mode>_0.
9135         * config/i386/sse.md (VI8_AVX_AVX512F, VI4F_256_512): New mode
9136         iterators.
9137         (ssescalarmodesuffix): Add 512-bit vectors.  Use "d" or "q" for
9138         integral modes instead of "ss" and "sd".
9139         (vec_set<mode>_0): New define_insns for 256-bit and 512-bit
9140         vectors with 32-bit and 64-bit elements.
9141         (vecdupssescalarmodesuffix): New mode attribute.
9142         (vec_dup<mode>): Use it.
9143
9144 2018-01-11  H.J. Lu  <hongjiu.lu@intel.com>
9145
9146         PR target/83330
9147         * config/i386/i386.c (ix86_compute_frame_layout): Align stack
9148         frame if argument is passed on stack.
9149
9150 2018-01-11  Jakub Jelinek  <jakub@redhat.com>
9151
9152         PR target/82682
9153         * ree.c (combine_reaching_defs): Optimize also
9154         reg2=exp; reg1=reg2; reg2=any_extend(reg1); into
9155         reg2=any_extend(exp); reg1=reg2;, formatting fix.
9156
9157 2018-01-11  Jan Hubicka  <hubicka@ucw.cz>
9158
9159         PR middle-end/83189
9160         * gimple-ssa-isolate-paths.c (isolate_path): Fix profile update.
9161
9162 2018-01-11  Jan Hubicka  <hubicka@ucw.cz>
9163
9164         PR middle-end/83718
9165         * tree-inline.c (copy_cfg_body): Adjust num&den for scaling
9166         after they are computed.
9167
9168 2018-01-11  Bin Cheng  <bin.cheng@arm.com>
9169
9170         PR tree-optimization/83695
9171         * gimple-loop-linterchange.cc
9172         (tree_loop_interchange::interchange_loops): Call scev_reset_htab to
9173         reset cached scev information after interchange.
9174         (pass_linterchange::execute): Remove call to scev_reset_htab.
9175
9176 2018-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
9177
9178         * config/arm/arm_neon.h (vfmlal_lane_low_u32, vfmlal_lane_high_u32,
9179         vfmlalq_laneq_low_u32, vfmlalq_lane_low_u32, vfmlal_laneq_low_u32,
9180         vfmlalq_laneq_high_u32, vfmlalq_lane_high_u32, vfmlal_laneq_high_u32,
9181         vfmlsl_lane_low_u32, vfmlsl_lane_high_u32, vfmlslq_laneq_low_u32,
9182         vfmlslq_lane_low_u32, vfmlsl_laneq_low_u32, vfmlslq_laneq_high_u32,
9183         vfmlslq_lane_high_u32, vfmlsl_laneq_high_u32): Define.
9184         * config/arm/arm_neon_builtins.def (vfmal_lane_low,
9185         vfmal_lane_lowv4hf, vfmal_lane_lowv8hf, vfmal_lane_high,
9186         vfmal_lane_highv4hf, vfmal_lane_highv8hf, vfmsl_lane_low,
9187         vfmsl_lane_lowv4hf, vfmsl_lane_lowv8hf, vfmsl_lane_high,
9188         vfmsl_lane_highv4hf, vfmsl_lane_highv8hf): New sets of builtins.
9189         * config/arm/iterators.md (VFMLSEL2, vfmlsel2): New mode attributes.
9190         (V_lane_reg): Likewise.
9191         * config/arm/neon.md (neon_vfm<vfml_op>l_lane_<vfml_half><VCVTF:mode>):
9192         New define_expand.
9193         (neon_vfm<vfml_op>l_lane_<vfml_half><vfmlsel2><mode>): Likewise.
9194         (vfmal_lane_low<mode>_intrinsic,
9195         vfmal_lane_low<vfmlsel2><mode>_intrinsic,
9196         vfmal_lane_high<vfmlsel2><mode>_intrinsic,
9197         vfmal_lane_high<mode>_intrinsic, vfmsl_lane_low<mode>_intrinsic,
9198         vfmsl_lane_low<vfmlsel2><mode>_intrinsic,
9199         vfmsl_lane_high<vfmlsel2><mode>_intrinsic,
9200         vfmsl_lane_high<mode>_intrinsic): New define_insns.
9201
9202 2018-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
9203
9204         * config/arm/arm-cpus.in (fp16fml): New feature.
9205         (ALL_SIMD): Add fp16fml.
9206         (armv8.2-a): Add fp16fml as an option.
9207         (armv8.3-a): Likewise.
9208         (armv8.4-a): Add fp16fml as part of fp16.
9209         * config/arm/arm.h (TARGET_FP16FML): Define.
9210         * config/arm/arm-c.c (arm_cpu_builtins): Define __ARM_FEATURE_FP16_FML
9211         when appropriate.
9212         * config/arm/arm-modes.def (V2HF): Define.
9213         * config/arm/arm_neon.h (vfmlal_low_u32, vfmlsl_low_u32,
9214         vfmlal_high_u32, vfmlsl_high_u32, vfmlalq_low_u32,
9215         vfmlslq_low_u32, vfmlalq_high_u32, vfmlslq_high_u32): Define.
9216         * config/arm/arm_neon_builtins.def (vfmal_low, vfmal_high,
9217         vfmsl_low, vfmsl_high): New set of builtins.
9218         * config/arm/iterators.md (PLUSMINUS): New code iterator.
9219         (vfml_op): New code attribute.
9220         (VFMLHALVES): New int iterator.
9221         (VFML, VFMLSEL): New mode attributes.
9222         (V_reg): Define mapping for V2HF.
9223         (V_hi, V_lo): New mode attributes.
9224         (VF_constraint): Likewise.
9225         (vfml_half, vfml_half_selector): New int attributes.
9226         * config/arm/neon.md (neon_vfm<vfml_op>l_<vfml_half><mode>): New
9227         define_expand.
9228         (vfmal_low<mode>_intrinsic, vfmsl_high<mode>_intrinsic,
9229         vfmal_high<mode>_intrinsic, vfmsl_low<mode>_intrinsic):
9230         New define_insn.
9231         * config/arm/t-arm-elf (v8_fps): Add fp16fml.
9232         * config/arm/t-multilib (v8_2_a_simd_variants): Add fp16fml.
9233         * config/arm/unspecs.md (UNSPEC_VFML_LO, UNSPEC_VFML_HI): New unspecs.
9234         * doc/invoke.texi (ARM Options): Document fp16fml.  Update armv8.4-a
9235         documentation.
9236         * doc/sourcebuild.texi (arm_fp16fml_neon_ok, arm_fp16fml_neon):
9237         Document new effective target and option set.
9238
9239 2018-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
9240
9241         * config/arm/arm-cpus.in (armv8_4): New feature.
9242         (ARMv8_4a): New fgroup.
9243         (armv8.4-a): New arch.
9244         * config/arm/arm-tables.opt: Regenerate.
9245         * config/arm/t-aprofile: Add matching rules for -march=armv8.4-a.
9246         * config/arm/t-arm-elf (all_v8_archs): Add armv8.4-a.
9247         * config/arm/t-multilib (v8_4_a_simd_variants): New variable.
9248         Add matching rules for -march=armv8.4-a and extensions.
9249         * doc/invoke.texi (ARM Options): Document -march=armv8.4-a.
9250
9251 2018-01-11  Oleg Endo  <olegendo@gcc.gnu.org>
9252
9253         PR target/81821
9254         * config/rx/rx.md (BW): New mode attribute.
9255         (sync_lock_test_and_setsi): Add mode suffix to insn output.
9256
9257 2018-01-11  Richard Biener  <rguenther@suse.de>
9258
9259         PR tree-optimization/83435
9260         * graphite.c (canonicalize_loop_form): Ignore fake loop exit edges.
9261         * graphite-scop-detection.c (scop_detection::get_sese): Likewise.
9262         * tree-vrp.c (add_assert_info): Drop TREE_OVERFLOW if they appear.
9263
9264 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
9265             Alan Hayward  <alan.hayward@arm.com>
9266             David Sherwood  <david.sherwood@arm.com>
9267
9268         * config/aarch64/aarch64.c (aarch64_address_info): Add a const_offset
9269         field.
9270         (aarch64_classify_address): Initialize it.  Track polynomial offsets.
9271         (aarch64_print_address_internal): Use it to check for a zero offset.
9272
9273 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
9274             Alan Hayward  <alan.hayward@arm.com>
9275             David Sherwood  <david.sherwood@arm.com>
9276
9277         * config/aarch64/aarch64-modes.def (NUM_POLY_INT_COEFFS): Set to 2.
9278         * config/aarch64/aarch64-protos.h (aarch64_initial_elimination_offset):
9279         Return a poly_int64 rather than a HOST_WIDE_INT.
9280         (aarch64_offset_7bit_signed_scaled_p): Take the offset as a poly_int64
9281         rather than a HOST_WIDE_INT.
9282         * config/aarch64/aarch64.h (aarch64_frame): Protect with
9283         HAVE_POLY_INT_H rather than HOST_WIDE_INT.  Change locals_offset,
9284         hard_fp_offset, frame_size, initial_adjust, callee_offset and
9285         final_offset from HOST_WIDE_INT to poly_int64.
9286         * config/aarch64/aarch64-builtins.c (aarch64_simd_expand_args): Use
9287         to_constant when getting the number of units in an Advanced SIMD
9288         mode.
9289         (aarch64_builtin_vectorized_function): Check for a constant number
9290         of units.
9291         * config/aarch64/aarch64-simd.md (mov<mode>): Handle polynomial
9292         GET_MODE_SIZE.
9293         (aarch64_ld<VSTRUCT:nregs>_lane<VALLDIF:mode>): Use the nunits
9294         attribute instead of GET_MODE_NUNITS.
9295         * config/aarch64/aarch64.c (aarch64_hard_regno_nregs)
9296         (aarch64_class_max_nregs): Use the constant_lowest_bound of the
9297         GET_MODE_SIZE for fixed-size registers.
9298         (aarch64_const_vec_all_same_in_range_p): Use const_vec_duplicate_p.
9299         (aarch64_hard_regno_call_part_clobbered, aarch64_classify_index)
9300         (aarch64_mode_valid_for_sched_fusion_p, aarch64_classify_address)
9301         (aarch64_legitimize_address_displacement, aarch64_secondary_reload)
9302         (aarch64_print_operand, aarch64_print_address_internal)
9303         (aarch64_address_cost, aarch64_rtx_costs, aarch64_register_move_cost)
9304         (aarch64_short_vector_p, aapcs_vfp_sub_candidate)
9305         (aarch64_simd_attr_length_rglist, aarch64_operands_ok_for_ldpstp):
9306         Handle polynomial GET_MODE_SIZE.
9307         (aarch64_hard_regno_caller_save_mode): Likewise.  Return modes
9308         wider than SImode without modification.
9309         (tls_symbolic_operand_type): Use strip_offset instead of split_const.
9310         (aarch64_pass_by_reference, aarch64_layout_arg, aarch64_pad_reg_upward)
9311         (aarch64_gimplify_va_arg_expr): Assert that we don't yet handle
9312         passing and returning SVE modes.
9313         (aarch64_function_value, aarch64_layout_arg): Use gen_int_mode
9314         rather than GEN_INT.
9315         (aarch64_emit_probe_stack_range): Take the size as a poly_int64
9316         rather than a HOST_WIDE_INT, but call sorry if it isn't constant.
9317         (aarch64_allocate_and_probe_stack_space): Likewise.
9318         (aarch64_layout_frame): Cope with polynomial offsets.
9319         (aarch64_save_callee_saves, aarch64_restore_callee_saves): Take the
9320         start_offset as a poly_int64 rather than a HOST_WIDE_INT.  Track
9321         polynomial offsets.
9322         (offset_9bit_signed_unscaled_p, offset_12bit_unsigned_scaled_p)
9323         (aarch64_offset_7bit_signed_scaled_p): Take the offset as a
9324         poly_int64 rather than a HOST_WIDE_INT.
9325         (aarch64_get_separate_components, aarch64_process_components)
9326         (aarch64_expand_prologue, aarch64_expand_epilogue)
9327         (aarch64_use_return_insn_p): Handle polynomial frame offsets.
9328         (aarch64_anchor_offset): New function, split out from...
9329         (aarch64_legitimize_address): ...here.
9330         (aarch64_builtin_vectorization_cost): Handle polynomial
9331         TYPE_VECTOR_SUBPARTS.
9332         (aarch64_simd_check_vect_par_cnst_half): Handle polynomial
9333         GET_MODE_NUNITS.
9334         (aarch64_simd_make_constant, aarch64_expand_vector_init): Get the
9335         number of elements from the PARALLEL rather than the mode.
9336         (aarch64_shift_truncation_mask): Use GET_MODE_UNIT_BITSIZE
9337         rather than GET_MODE_BITSIZE.
9338         (aarch64_evpc_trn, aarch64_evpc_uzp, aarch64_evpc_ext)
9339         (aarch64_evpc_rev, aarch64_evpc_dup, aarch64_evpc_zip)
9340         (aarch64_expand_vec_perm_const_1): Handle polynomial
9341         d->perm.length () and d->perm elements.
9342         (aarch64_evpc_tbl): Likewise.  Use nelt rather than GET_MODE_NUNITS.
9343         Apply to_constant to d->perm elements.
9344         (aarch64_simd_valid_immediate, aarch64_vec_fpconst_pow_of_2): Handle
9345         polynomial CONST_VECTOR_NUNITS.
9346         (aarch64_move_pointer): Take amount as a poly_int64 rather
9347         than an int.
9348         (aarch64_progress_pointer): Avoid temporary variable.
9349         * config/aarch64/aarch64.md (aarch64_<crc_variant>): Use
9350         the mode attribute instead of GET_MODE.
9351
9352 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
9353             Alan Hayward  <alan.hayward@arm.com>
9354             David Sherwood  <david.sherwood@arm.com>
9355
9356         * config/aarch64/aarch64.c (aarch64_force_temporary): Assert that
9357         x exists before using it.
9358         (aarch64_add_constant_internal): Rename to...
9359         (aarch64_add_offset_1): ...this.  Replace regnum with separate
9360         src and dest rtxes.  Handle the case in which they're different,
9361         including when the offset is zero.  Replace scratchreg with an rtx.
9362         Use 2 additions if there is no spare register into which we can
9363         move a 16-bit constant.
9364         (aarch64_add_constant): Delete.
9365         (aarch64_add_offset): Replace reg with separate src and dest
9366         rtxes.  Take a poly_int64 offset instead of a HOST_WIDE_INT.
9367         Use aarch64_add_offset_1.
9368         (aarch64_add_sp, aarch64_sub_sp): Take the scratch register as
9369         an rtx rather than an int.  Take the delta as a poly_int64
9370         rather than a HOST_WIDE_INT.  Use aarch64_add_offset.
9371         (aarch64_expand_mov_immediate): Update uses of aarch64_add_offset.
9372         (aarch64_expand_prologue): Update calls to aarch64_sub_sp,
9373         aarch64_allocate_and_probe_stack_space and aarch64_add_offset.
9374         (aarch64_expand_epilogue): Update calls to aarch64_add_offset
9375         and aarch64_add_sp.
9376         (aarch64_output_mi_thunk): Use aarch64_add_offset rather than
9377         aarch64_add_constant.
9378
9379 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
9380
9381         * config/aarch64/aarch64.c (aarch64_reinterpret_float_as_int):
9382         Use scalar_float_mode.
9383
9384 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
9385
9386         * config/aarch64/aarch64-simd.md
9387         (aarch64_fml<f16mac1>l<f16quad>_low<mode>): Avoid GET_MODE_NUNITS.
9388         (aarch64_fml<f16mac1>l<f16quad>_high<mode>): Likewise.
9389         (aarch64_fml<f16mac1>l_lane_lowv2sf): Likewise.
9390         (aarch64_fml<f16mac1>l_lane_highv2sf): Likewise.
9391         (aarch64_fml<f16mac1>lq_laneq_lowv4sf): Likewise.
9392         (aarch64_fml<f16mac1>lq_laneq_highv4sf): Likewise.
9393         (aarch64_fml<f16mac1>l_laneq_lowv2sf): Likewise.
9394         (aarch64_fml<f16mac1>l_laneq_highv2sf): Likewise.
9395         (aarch64_fml<f16mac1>lq_lane_lowv4sf): Likewise.
9396         (aarch64_fml<f16mac1>lq_lane_highv4sf): Likewise.
9397
9398 2018-01-11  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
9399
9400         PR target/83514
9401         * config/arm/arm.c (arm_declare_function_name): Set arch_to_print if
9402         targ_options->x_arm_arch_string is non NULL.
9403
9404 2018-01-11  Tamar Christina  <tamar.christina@arm.com>
9405
9406         * config/aarch64/aarch64.h
9407         (AARCH64_FL_FOR_ARCH8_4): Add  AARCH64_FL_DOTPROD.
9408
9409 2018-01-11  Sudakshina Das  <sudi.das@arm.com>
9410
9411         PR target/82096
9412         * expmed.c (emit_store_flag_force): Swap if const op0
9413         and change VOIDmode to mode of op0.
9414
9415 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
9416
9417         PR rtl-optimization/83761
9418         * caller-save.c (replace_reg_with_saved_mem): Pass bits rather
9419         than bytes to mode_for_size.
9420
9421 2018-01-10  Jan Hubicka  <hubicka@ucw.cz>
9422
9423         PR middle-end/83189
9424         * gfortran.fortran-torture/compile/pr83189.f90: New testcase.
9425         * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Handle zero
9426         profile.
9427
9428 2018-01-10  Jan Hubicka  <hubicka@ucw.cz>
9429
9430         PR middle-end/83575
9431         * cfgrtl.c (rtl_verify_edges): Only verify fixability of partition
9432         when in layout mode.
9433         (cfg_layout_finalize): Do not verify cfg before we are out of layout.
9434         * cfgcleanup.c (try_optimize_cfg): Only verify flow info when doing
9435         partition fixup.
9436
9437 2018-01-10  Michael Collison  <michael.collison@arm.com>
9438
9439         * config/aarch64/aarch64-modes.def (V2HF): New VECTOR_MODE.
9440         * config/aarch64/aarch64-option-extension.def: Add
9441         AARCH64_OPT_EXTENSION of 'fp16fml'.
9442         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
9443         (__ARM_FEATURE_FP16_FML): Define if TARGET_F16FML is true.
9444         * config/aarch64/predicates.md (aarch64_lane_imm3): New predicate.
9445         * config/aarch64/constraints.md (Ui7): New constraint.
9446         * config/aarch64/iterators.md (VFMLA_W): New mode iterator.
9447         (VFMLA_SEL_W): Ditto.
9448         (f16quad): Ditto.
9449         (f16mac1): Ditto.
9450         (VFMLA16_LOW): New int iterator.
9451         (VFMLA16_HIGH): Ditto.
9452         (UNSPEC_FMLAL): New unspec.
9453         (UNSPEC_FMLSL): Ditto.
9454         (UNSPEC_FMLAL2): Ditto.
9455         (UNSPEC_FMLSL2): Ditto.
9456         (f16mac): New code attribute.
9457         * config/aarch64/aarch64-simd-builtins.def
9458         (aarch64_fmlal_lowv2sf): Ditto.
9459         (aarch64_fmlsl_lowv2sf): Ditto.
9460         (aarch64_fmlalq_lowv4sf): Ditto.
9461         (aarch64_fmlslq_lowv4sf): Ditto.
9462         (aarch64_fmlal_highv2sf): Ditto.
9463         (aarch64_fmlsl_highv2sf): Ditto.
9464         (aarch64_fmlalq_highv4sf): Ditto.
9465         (aarch64_fmlslq_highv4sf): Ditto.
9466         (aarch64_fmlal_lane_lowv2sf): Ditto.
9467         (aarch64_fmlsl_lane_lowv2sf): Ditto.
9468         (aarch64_fmlal_laneq_lowv2sf): Ditto.
9469         (aarch64_fmlsl_laneq_lowv2sf): Ditto.
9470         (aarch64_fmlalq_lane_lowv4sf): Ditto.
9471         (aarch64_fmlsl_lane_lowv4sf): Ditto.
9472         (aarch64_fmlalq_laneq_lowv4sf): Ditto.
9473         (aarch64_fmlsl_laneq_lowv4sf): Ditto.
9474         (aarch64_fmlal_lane_highv2sf): Ditto.
9475         (aarch64_fmlsl_lane_highv2sf): Ditto.
9476         (aarch64_fmlal_laneq_highv2sf): Ditto.
9477         (aarch64_fmlsl_laneq_highv2sf): Ditto.
9478         (aarch64_fmlalq_lane_highv4sf): Ditto.
9479         (aarch64_fmlsl_lane_highv4sf): Ditto.
9480         (aarch64_fmlalq_laneq_highv4sf): Ditto.
9481         (aarch64_fmlsl_laneq_highv4sf): Ditto.
9482         * config/aarch64/aarch64-simd.md:
9483         (aarch64_fml<f16mac1>l<f16quad>_low<mode>): New pattern.
9484         (aarch64_fml<f16mac1>l<f16quad>_high<mode>): Ditto.
9485         (aarch64_simd_fml<f16mac1>l<f16quad>_low<mode>): Ditto.
9486         (aarch64_simd_fml<f16mac1>l<f16quad>_high<mode>): Ditto.
9487         (aarch64_fml<f16mac1>l_lane_lowv2sf): Ditto.
9488         (aarch64_fml<f16mac1>l_lane_highv2sf): Ditto.
9489         (aarch64_simd_fml<f16mac>l_lane_lowv2sf): Ditto.
9490         (aarch64_simd_fml<f16mac>l_lane_highv2sf): Ditto.
9491         (aarch64_fml<f16mac1>lq_laneq_lowv4sf): Ditto.
9492         (aarch64_fml<f16mac1>lq_laneq_highv4sf): Ditto.
9493         (aarch64_simd_fml<f16mac>lq_laneq_lowv4sf): Ditto.
9494         (aarch64_simd_fml<f16mac>lq_laneq_highv4sf): Ditto.
9495         (aarch64_fml<f16mac1>l_laneq_lowv2sf): Ditto.
9496         (aarch64_fml<f16mac1>l_laneq_highv2sf): Ditto.
9497         (aarch64_simd_fml<f16mac>l_laneq_lowv2sf): Ditto.
9498         (aarch64_simd_fml<f16mac>l_laneq_highv2sf): Ditto.
9499         (aarch64_fml<f16mac1>lq_lane_lowv4sf): Ditto.
9500         (aarch64_fml<f16mac1>lq_lane_highv4sf): Ditto.
9501         (aarch64_simd_fml<f16mac>lq_lane_lowv4sf): Ditto.
9502         (aarch64_simd_fml<f16mac>lq_lane_highv4sf): Ditto.
9503         * config/aarch64/arm_neon.h (vfmlal_low_u32): New intrinsic.
9504         (vfmlsl_low_u32): Ditto.
9505         (vfmlalq_low_u32): Ditto.
9506         (vfmlslq_low_u32): Ditto.
9507         (vfmlal_high_u32): Ditto.
9508         (vfmlsl_high_u32): Ditto.
9509         (vfmlalq_high_u32): Ditto.
9510         (vfmlslq_high_u32): Ditto.
9511         (vfmlal_lane_low_u32): Ditto.
9512         (vfmlsl_lane_low_u32): Ditto.
9513         (vfmlal_laneq_low_u32): Ditto.
9514         (vfmlsl_laneq_low_u32): Ditto.
9515         (vfmlalq_lane_low_u32): Ditto.
9516         (vfmlslq_lane_low_u32): Ditto.
9517         (vfmlalq_laneq_low_u32): Ditto.
9518         (vfmlslq_laneq_low_u32): Ditto.
9519         (vfmlal_lane_high_u32): Ditto.
9520         (vfmlsl_lane_high_u32): Ditto.
9521         (vfmlal_laneq_high_u32): Ditto.
9522         (vfmlsl_laneq_high_u32): Ditto.
9523         (vfmlalq_lane_high_u32): Ditto.
9524         (vfmlslq_lane_high_u32): Ditto.
9525         (vfmlalq_laneq_high_u32): Ditto.
9526         (vfmlslq_laneq_high_u32): Ditto.
9527         * config/aarch64/aarch64.h (AARCH64_FL_F16SML): New flag.
9528         (AARCH64_FL_FOR_ARCH8_4): New.
9529         (AARCH64_ISA_F16FML): New ISA flag.
9530         (TARGET_F16FML): New feature flag for fp16fml.
9531         (doc/invoke.texi): Document new fp16fml option.
9532
9533 2018-01-10  Michael Collison  <michael.collison@arm.com>
9534
9535         * config/aarch64/aarch64-builtins.c:
9536         (aarch64_types_ternopu_imm_qualifiers, TYPES_TERNOPUI): New.
9537         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
9538         (__ARM_FEATURE_SHA3): Define if TARGET_SHA3 is true.
9539         * config/aarch64/aarch64.h (AARCH64_FL_SHA3): New flags.
9540         (AARCH64_ISA_SHA3): New ISA flag.
9541         (TARGET_SHA3): New feature flag for sha3.
9542         * config/aarch64/iterators.md (sha512_op): New int attribute.
9543         (CRYPTO_SHA512): New int iterator.
9544         (UNSPEC_SHA512H): New unspec.
9545         (UNSPEC_SHA512H2): Ditto.
9546         (UNSPEC_SHA512SU0): Ditto.
9547         (UNSPEC_SHA512SU1): Ditto.
9548         * config/aarch64/aarch64-simd-builtins.def
9549         (aarch64_crypto_sha512hqv2di): New builtin.
9550         (aarch64_crypto_sha512h2qv2di): Ditto.
9551         (aarch64_crypto_sha512su0qv2di): Ditto.
9552         (aarch64_crypto_sha512su1qv2di): Ditto.
9553         (aarch64_eor3qv8hi): Ditto.
9554         (aarch64_rax1qv2di): Ditto.
9555         (aarch64_xarqv2di): Ditto.
9556         (aarch64_bcaxqv8hi): Ditto.
9557         * config/aarch64/aarch64-simd.md:
9558         (aarch64_crypto_sha512h<sha512_op>qv2di): New pattern.
9559         (aarch64_crypto_sha512su0qv2di): Ditto.
9560         (aarch64_crypto_sha512su1qv2di): Ditto.
9561         (aarch64_eor3qv8hi): Ditto.
9562         (aarch64_rax1qv2di): Ditto.
9563         (aarch64_xarqv2di): Ditto.
9564         (aarch64_bcaxqv8hi): Ditto.
9565         * config/aarch64/arm_neon.h (vsha512hq_u64): New intrinsic.
9566         (vsha512h2q_u64): Ditto.
9567         (vsha512su0q_u64): Ditto.
9568         (vsha512su1q_u64): Ditto.
9569         (veor3q_u16): Ditto.
9570         (vrax1q_u64): Ditto.
9571         (vxarq_u64): Ditto.
9572         (vbcaxq_u16): Ditto.
9573         * config/arm/types.md (crypto_sha512): New type attribute.
9574         (crypto_sha3): Ditto.
9575         (doc/invoke.texi): Document new sha3 option.
9576
9577 2018-01-10  Michael Collison  <michael.collison@arm.com>
9578
9579         * config/aarch64/aarch64-builtins.c:
9580         (aarch64_types_quadopu_imm_qualifiers, TYPES_QUADOPUI): New.
9581         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
9582         (__ARM_FEATURE_SM3): Define if TARGET_SM4 is true.
9583         (__ARM_FEATURE_SM4): Define if TARGET_SM4 is true.
9584         * config/aarch64/aarch64.h (AARCH64_FL_SM4): New flags.
9585         (AARCH64_ISA_SM4): New ISA flag.
9586         (TARGET_SM4): New feature flag for sm4.
9587         * config/aarch64/aarch64-simd-builtins.def
9588         (aarch64_sm3ss1qv4si): Ditto.
9589         (aarch64_sm3tt1aq4si): Ditto.
9590         (aarch64_sm3tt1bq4si): Ditto.
9591         (aarch64_sm3tt2aq4si): Ditto.
9592         (aarch64_sm3tt2bq4si): Ditto.
9593         (aarch64_sm3partw1qv4si): Ditto.
9594         (aarch64_sm3partw2qv4si): Ditto.
9595         (aarch64_sm4eqv4si): Ditto.
9596         (aarch64_sm4ekeyqv4si): Ditto.
9597         * config/aarch64/aarch64-simd.md:
9598         (aarch64_sm3ss1qv4si): Ditto.
9599         (aarch64_sm3tt<sm3tt_op>qv4si): Ditto.
9600         (aarch64_sm3partw<sm3part_op>qv4si): Ditto.
9601         (aarch64_sm4eqv4si): Ditto.
9602         (aarch64_sm4ekeyqv4si): Ditto.
9603         * config/aarch64/iterators.md (sm3tt_op): New int iterator.
9604         (sm3part_op): Ditto.
9605         (CRYPTO_SM3TT): Ditto.
9606         (CRYPTO_SM3PART): Ditto.
9607         (UNSPEC_SM3SS1): New unspec.
9608         (UNSPEC_SM3TT1A): Ditto.
9609         (UNSPEC_SM3TT1B): Ditto.
9610         (UNSPEC_SM3TT2A): Ditto.
9611         (UNSPEC_SM3TT2B): Ditto.
9612         (UNSPEC_SM3PARTW1): Ditto.
9613         (UNSPEC_SM3PARTW2): Ditto.
9614         (UNSPEC_SM4E): Ditto.
9615         (UNSPEC_SM4EKEY): Ditto.
9616         * config/aarch64/constraints.md (Ui2): New constraint.
9617         * config/aarch64/predicates.md (aarch64_imm2): New predicate.
9618         * config/arm/types.md (crypto_sm3): New type attribute.
9619         (crypto_sm4): Ditto.
9620         * config/aarch64/arm_neon.h (vsm3ss1q_u32): New intrinsic.
9621         (vsm3tt1aq_u32): Ditto.
9622         (vsm3tt1bq_u32): Ditto.
9623         (vsm3tt2aq_u32): Ditto.
9624         (vsm3tt2bq_u32): Ditto.
9625         (vsm3partw1q_u32): Ditto.
9626         (vsm3partw2q_u32): Ditto.
9627         (vsm4eq_u32): Ditto.
9628         (vsm4ekeyq_u32): Ditto.
9629         (doc/invoke.texi): Document new sm4 option.
9630
9631 2018-01-10  Michael Collison  <michael.collison@arm.com>
9632
9633         * config/aarch64/aarch64-arches.def (armv8.4-a): New architecture.
9634         * config/aarch64/aarch64.h (AARCH64_ISA_V8_4): New ISA flag.
9635         (AARCH64_FL_FOR_ARCH8_4): New.
9636         (AARCH64_FL_V8_4): New flag.
9637         (doc/invoke.texi): Document new armv8.4-a option.
9638
9639 2018-01-10  Michael Collison  <michael.collison@arm.com>
9640
9641         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
9642         (__ARM_FEATURE_AES): Define if TARGET_AES is true.
9643         (__ARM_FEATURE_SHA2): Define if TARGET_SHA2 is true.
9644         * config/aarch64/aarch64-option-extension.def: Add
9645         AARCH64_OPT_EXTENSION of 'sha2'.
9646         (aes): Add AARCH64_OPT_EXTENSION of 'aes'.
9647         (crypto): Disable sha2 and aes if crypto disabled.
9648         (crypto): Enable aes and sha2 if enabled.
9649         (simd): Disable sha2 and aes if simd disabled.
9650         * config/aarch64/aarch64.h (AARCH64_FL_AES, AARCH64_FL_SHA2):
9651         New flags.
9652         (AARCH64_ISA_AES, AARCH64_ISA_SHA2): New ISA flags.
9653         (TARGET_SHA2): New feature flag for sha2.
9654         (TARGET_AES): New feature flag for aes.
9655         * config/aarch64/aarch64-simd.md:
9656         (aarch64_crypto_aes<aes_op>v16qi): Make pattern
9657         conditional on TARGET_AES.
9658         (aarch64_crypto_aes<aesmc_op>v16qi): Ditto.
9659         (aarch64_crypto_sha1hsi): Make pattern conditional
9660         on TARGET_SHA2.
9661         (aarch64_crypto_sha1hv4si): Ditto.
9662         (aarch64_be_crypto_sha1hv4si): Ditto.
9663         (aarch64_crypto_sha1su1v4si): Ditto.
9664         (aarch64_crypto_sha1<sha1_op>v4si): Ditto.
9665         (aarch64_crypto_sha1su0v4si): Ditto.
9666         (aarch64_crypto_sha256h<sha256_op>v4si): Ditto.
9667         (aarch64_crypto_sha256su0v4si): Ditto.
9668         (aarch64_crypto_sha256su1v4si): Ditto.
9669         (doc/invoke.texi): Document new aes and sha2 options.
9670
9671 2018-01-10  Martin Sebor  <msebor@redhat.com>
9672
9673         PR tree-optimization/83781
9674         * gimple-fold.c (get_range_strlen): Avoid treating arrays of pointers
9675         as string arrays.
9676
9677 2018-01-11  Martin Sebor  <msebor@gmail.com>
9678             Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
9679
9680         PR tree-optimization/83501
9681         PR tree-optimization/81703
9682
9683         * tree-ssa-strlen.c (get_string_cst): Rename...
9684         (get_string_len): ...to this.  Handle global constants.
9685         (handle_char_store): Adjust.
9686
9687 2018-01-10  Kito Cheng  <kito.cheng@gmail.com>
9688             Jim Wilson  <jimw@sifive.com>
9689
9690         * config/riscv/riscv-protos.h (riscv_output_return): New.
9691         * config/riscv/riscv.c (struct machine_function): New naked_p field.
9692         (riscv_attribute_table, riscv_output_return),
9693         (riscv_handle_fndecl_attribute, riscv_naked_function_p),
9694         (riscv_allocate_stack_slots_for_args, riscv_warn_func_return): New.
9695         (riscv_compute_frame_info): Only compute frame->mask if not a naked
9696         function.
9697         (riscv_expand_prologue): Add early return for naked function.
9698         (riscv_expand_epilogue): Likewise.
9699         (riscv_function_ok_for_sibcall): Return false for naked function.
9700         (riscv_set_current_function): New.
9701         (TARGET_SET_CURRENT_FUNCTION, TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS),
9702         (TARGET_ATTRIBUTE_TABLE, TARGET_WARN_FUNC_RETURN): New.
9703         * config/riscv/riscv.md (simple_return): Call riscv_output_return.
9704         * doc/extend.texi (RISC-V Function Attributes): New.
9705
9706 2018-01-10  Michael Meissner  <meissner@linux.vnet.ibm.com>
9707
9708         * config/rs6000/rs6000.c (is_complex_IBM_long_double): Explicitly
9709         check for 128-bit long double before checking TCmode.
9710         * config/rs6000/rs6000.h (FLOAT128_IEEE_P): Explicitly check for
9711         128-bit long doubles before checking TFmode or TCmode.
9712         (FLOAT128_IBM_P): Likewise.
9713
9714 2018-01-10  Martin Sebor  <msebor@redhat.com>
9715
9716         PR tree-optimization/83671
9717         * builtins.c (c_strlen): Unconditionally return zero for the empty
9718         string.
9719         Use -Warray-bounds for warnings.
9720         * gimple-fold.c (get_range_strlen): Handle non-constant lengths
9721         for non-constant array indices with COMPONENT_REF, arrays of
9722         arrays, and pointers to arrays.
9723         (gimple_fold_builtin_strlen): Determine and set length range for
9724         non-constant character arrays.
9725
9726 2018-01-10  Aldy Hernandez  <aldyh@redhat.com>
9727
9728         PR middle-end/81897
9729         * tree-ssa-uninit.c (convert_control_dep_chain_into_preds): Skip
9730         empty blocks.
9731
9732 2018-01-10  Eric Botcazou  <ebotcazou@adacore.com>
9733
9734         * dwarf2out.c (dwarf2out_var_location): Do not pass NULL to fprintf.
9735
9736 2018-01-10  Peter Bergner  <bergner@vnet.ibm.com>
9737
9738         PR target/83399
9739         * config/rs6000/rs6000.c (print_operand) <'y'>: Use
9740         VECTOR_MEM_ALTIVEC_OR_VSX_P.
9741         * config/rs6000/vsx.md (*vsx_le_perm_load_<mode> for VSX_D): Use
9742         indexed_or_indirect_operand predicate.
9743         (*vsx_le_perm_load_<mode> for VSX_W): Likewise.
9744         (*vsx_le_perm_load_v8hi): Likewise.
9745         (*vsx_le_perm_load_v16qi): Likewise.
9746         (*vsx_le_perm_store_<mode> for VSX_D): Likewise.
9747         (*vsx_le_perm_store_<mode> for VSX_W): Likewise.
9748         (*vsx_le_perm_store_v8hi): Likewise.
9749         (*vsx_le_perm_store_v16qi): Likewise.
9750         (eight unnamed splitters): Likewise.
9751
9752 2018-01-10  Peter Bergner  <bergner@vnet.ibm.com>
9753
9754         * config/rs6000/x86intrin.h: Change #warning to #error. Update message.
9755         * config/rs6000/emmintrin.h: Likewise.
9756         * config/rs6000/mmintrin.h: Likewise.
9757         * config/rs6000/xmmintrin.h: Likewise.
9758
9759 2018-01-10  David Malcolm  <dmalcolm@redhat.com>
9760
9761         PR c++/43486
9762         * tree-core.h: Document EXPR_LOCATION_WRAPPER_P's usage of
9763         "public_flag".
9764         * tree.c (tree_nop_conversion): Return true for location wrapper
9765         nodes.
9766         (maybe_wrap_with_location): New function.
9767         (selftest::check_strip_nops): New function.
9768         (selftest::test_location_wrappers): New function.
9769         (selftest::tree_c_tests): Call it.
9770         * tree.h (STRIP_ANY_LOCATION_WRAPPER): New macro.
9771         (maybe_wrap_with_location): New decl.
9772         (EXPR_LOCATION_WRAPPER_P): New macro.
9773         (location_wrapper_p): New inline function.
9774         (tree_strip_any_location_wrapper): New inline function.
9775
9776 2018-01-10  H.J. Lu  <hongjiu.lu@intel.com>
9777
9778         PR target/83735
9779         * config/i386/i386.c (ix86_compute_frame_layout): Always adjust
9780         stack_realign_offset for the largest alignment of stack slot
9781         actually used.
9782         (ix86_find_max_used_stack_alignment): New function.
9783         (ix86_finalize_stack_frame_flags): Use it.  Set
9784         max_used_stack_alignment if we don't realign stack.
9785         * config/i386/i386.h (machine_function): Add
9786         max_used_stack_alignment.
9787
9788 2018-01-10  Christophe Lyon  <christophe.lyon@linaro.org>
9789
9790         * config/arm/arm.opt (-mbranch-cost): New option.
9791         * config/arm/arm.h (BRANCH_COST): Take arm_branch_cost into
9792         account.
9793
9794 2018-01-10  Segher Boessenkool  <segher@kernel.crashing.org>
9795
9796         PR target/83629
9797         * config/rs6000/rs6000.md (load_toc_v4_PIC_2, load_toc_v4_PIC_3b,
9798         load_toc_v4_PIC_3c): Wrap const term in CONST RTL.
9799
9800 2018-01-10  Richard Biener  <rguenther@suse.de>
9801
9802         PR debug/83765
9803         * dwarf2out.c (gen_subprogram_die): Hoist old_die && declaration
9804         early out so it also covers the case where we have a non-NULL
9805         origin.
9806
9807 2018-01-10  Richard Sandiford  <richard.sandiford@linaro.org>
9808
9809         PR tree-optimization/83753
9810         * tree-vect-stmts.c (get_group_load_store_type): Use VMAT_CONTIGUOUS
9811         for non-strided grouped accesses if the number of elements is 1.
9812
9813 2018-01-10  Jan Hubicka  <hubicka@ucw.cz>
9814
9815         PR target/81616
9816         * i386.c (ix86_vectorize_builtin_gather): Check TARGET_USE_GATHER.
9817         * i386.h (TARGET_USE_GATHER): Define.
9818         * x86-tune.def (X86_TUNE_USE_GATHER): New.
9819
9820 2018-01-10  Martin Liska  <mliska@suse.cz>
9821
9822         PR bootstrap/82831
9823         * basic-block.h (CLEANUP_NO_PARTITIONING): New define.
9824         * bb-reorder.c (pass_reorder_blocks::execute): Do not clean up
9825         partitioning.
9826         * cfgcleanup.c (try_optimize_cfg): Fix up partitioning if
9827         CLEANUP_NO_PARTITIONING is not set.
9828
9829 2018-01-10  Richard Sandiford  <richard.sandiford@linaro.org>
9830
9831         * doc/rtl.texi: Remove documentation of (const ...) wrappers
9832         for vectors, as a partial revert of r254296.
9833         * rtl.h (const_vec_p): Delete.
9834         (const_vec_duplicate_p): Don't test for vector CONSTs.
9835         (unwrap_const_vec_duplicate, const_vec_series_p): Likewise.
9836         * expmed.c (make_tree): Likewise.
9837
9838         Revert:
9839         * common.md (E, F): Use CONSTANT_P instead of checking for
9840         CONST_VECTOR.
9841         * emit-rtl.c (gen_lowpart_common): Use const_vec_p instead of
9842         checking for CONST_VECTOR.
9843
9844 2018-01-09  Jan Hubicka  <hubicka@ucw.cz>
9845
9846         PR middle-end/83575
9847         * predict.c (force_edge_cold): Handle in more sane way edges
9848         with no prediction.
9849
9850 2018-01-09  Carl Love  <cel@us.ibm.com>
9851
9852         * config/rs6002/altivec.md (p8_vmrgow): Add support for V2DI, V2DF,
9853         V4SI, V4SF types.
9854         (p8_vmrgew): Add support for V2DI, V2DF, V4SF types.
9855         * config/rs6000/rs6000-builtin.def: Add definitions for FLOAT2_V2DF,
9856         VMRGEW_V2DI, VMRGEW_V2DF, VMRGEW_V4SF, VMRGOW_V4SI, VMRGOW_V4SF,
9857         VMRGOW_V2DI, VMRGOW_V2DF.  Remove definition for VMRGOW.
9858         * config/rs6000/rs6000-c.c (VSX_BUILTIN_VEC_FLOAT2,
9859         P8V_BUILTIN_VEC_VMRGEW, P8V_BUILTIN_VEC_VMRGOW):  Add definitions.
9860         * config/rs6000/rs6000-protos.h: Add extern defition for
9861         rs6000_generate_float2_double_code.
9862         * config/rs6000/rs6000.c (rs6000_generate_float2_double_code): Add
9863         function.
9864         * config/rs6000/vsx.md (vsx_xvcdpsp): Add define_insn.
9865         (float2_v2df): Add define_expand.
9866
9867 2018-01-09  Uros Bizjak  <ubizjak@gmail.com>
9868
9869         PR target/83628
9870         * combine.c (force_int_to_mode) <case ASHIFT>: Use mode instead of
9871         op_mode in the force_to_mode call.
9872
9873 2018-01-09  Richard Sandiford  <richard.sandiford@linaro.org>
9874
9875         * config/aarch64/aarch64.c (aarch64_evpc_trn): Use d.perm.series_p
9876         instead of checking each element individually.
9877         (aarch64_evpc_uzp): Likewise.
9878         (aarch64_evpc_zip): Likewise.
9879         (aarch64_evpc_ext): Likewise.
9880         (aarch64_evpc_rev): Likewise.
9881         (aarch64_evpc_dup): Test the encoding for a single duplicated element,
9882         instead of checking each element individually.  Return true without
9883         generating rtl if
9884         (aarch64_vectorize_vec_perm_const): Use all_from_input_p to test
9885         whether all selected elements come from the same input, instead of
9886         checking each element individually.  Remove calls to gen_rtx_REG,
9887         start_sequence and end_sequence and instead assert that no rtl is
9888         generated.
9889
9890 2018-01-09  Richard Sandiford  <richard.sandiford@linaro.org>
9891
9892         * config/aarch64/aarch64.c (aarch64_legitimate_constant_p): Fix
9893         order of HIGH and CONST checks.
9894
9895 2018-01-09  Richard Sandiford  <richard.sandiford@linaro.org>
9896
9897         * tree-vect-stmts.c (permute_vec_elements): Create a fresh variable
9898         if the destination isn't an SSA_NAME.
9899
9900 2018-01-09  Richard Biener  <rguenther@suse.de>
9901
9902         PR tree-optimization/83668
9903         * graphite.c (canonicalize_loop_closed_ssa): Add edge argument,
9904         move prologue...
9905         (canonicalize_loop_form): ... here, renamed from ...
9906         (canonicalize_loop_closed_ssa_form): ... this and amended to
9907         swap successor edges for loop exit blocks to make us use
9908         the RPO order we need for initial schedule generation.
9909
9910 2018-01-09  Joseph Myers  <joseph@codesourcery.com>
9911
9912         PR tree-optimization/64811
9913         * match.pd: When optimizing comparisons with Inf, avoid
9914         introducing or losing exceptions from comparisons with NaN.
9915
9916 2018-01-09  Martin Liska  <mliska@suse.cz>
9917
9918         PR sanitizer/82517
9919         * asan.c (shadow_mem_size): Add gcc_assert.
9920
9921 2018-01-09  Georg-Johann Lay  <avr@gjlay.de>
9922
9923         Don't save registers in main().
9924
9925         PR target/83738
9926         * doc/invoke.texi (AVR Options) [-mmain-is-OS_task]: Document it.
9927         * config/avr/avr.opt (-mmain-is-OS_task): New target option.
9928         * config/avr/avr.c (avr_set_current_function): Don't error if
9929         naked, OS_task or OS_main are specified at the same time.
9930         (avr_function_ok_for_sibcall): Don't disable sibcalls for OS_task,
9931         OS_main.
9932         (avr_insert_attributes) [-mmain-is-OS_task] <main>: Add OS_task
9933         attribute.
9934         * common/config/avr/avr-common.c (avr_option_optimization_table):
9935         Switch on -mmain-is-OS_task for optimizing compilations.
9936
9937 2018-01-09  Richard Biener  <rguenther@suse.de>
9938
9939         PR tree-optimization/83572
9940         * graphite.c: Include cfganal.h.
9941         (graphite_transform_loops): Connect infinite loops to exit
9942         and remove fake edges at the end.
9943
9944 2018-01-09  Jan Hubicka  <hubicka@ucw.cz>
9945
9946         * ipa-inline.c (edge_badness): Revert accidental checkin.
9947
9948 2018-01-09  Jan Hubicka  <hubicka@ucw.cz>
9949
9950         PR ipa/80763
9951         * ipa-comdats.c (set_comdat_group): Only set comdat group of real
9952         symbols; not inline clones.
9953
9954 2018-01-09  Jakub Jelinek  <jakub@redhat.com>
9955
9956         PR target/83507
9957         * modulo-sched.c (schedule_reg_moves): Punt if we'd need to move
9958         hard registers.  Formatting fixes.
9959
9960         PR preprocessor/83722
9961         * gcc.c (try_generate_repro): Pass
9962         &temp_stderr_files[RETRY_ICE_ATTEMPTS - 1] rather than
9963         &temp_stdout_files[RETRY_ICE_ATTEMPTS - 1] as last argument to
9964         do_report_bug.
9965
9966 2018-01-08  Monk Chiang  <sh.chiang04@gmail.com>
9967             Kito Cheng  <kito.cheng@gmail.com>
9968
9969         * config/riscv/riscv.c (machine_function::is_leaf): Remove field.
9970         (riscv_leaf_function_p): Delete.
9971         (riscv_function_ok_for_sibcall): Return false when TARGET_SAVE_RESTORE.
9972
9973 2018-01-08  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
9974
9975         * config/rs6000/rs6000-string.c (do_load_for_compare_from_addr): New
9976         function.
9977         (do_ifelse): New function.
9978         (do_isel): New function.
9979         (do_sub3): New function.
9980         (do_add3): New function.
9981         (do_load_mask_compare): New function.
9982         (do_overlap_load_compare): New function.
9983         (expand_compare_loop): New function.
9984         (expand_block_compare): Call expand_compare_loop() when appropriate.
9985         * config/rs6000/rs6000.opt (-mblock-compare-inline-limit): Change
9986         option description.
9987         (-mblock-compare-inline-loop-limit): New option.
9988
9989 2018-01-08  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
9990
9991         PR target/83677
9992         * config/rs6000/altivec.md (*altivec_vpermr_<mode>_internal):
9993         Reverse order of second and third operands in first alternative.
9994         * config/rs6000/rs6000.c (rs6000_expand_vector_set): Reverse order
9995         of first and second elements in UNSPEC_VPERMR vector.
9996         (altivec_expand_vec_perm_le): Likewise.
9997
9998 2018-01-08  Jeff Law  <law@redhat.com>
9999
10000         PR rtl-optimizatin/81308
10001         * tree-switch-conversion.c (cfg_altered): New file scoped static.
10002         (process_switch): If group_case_labels makes a change, then set
10003         cfg_altered.
10004         (pass_convert_switch::execute): If a switch is converted, then
10005         set cfg_altered.  Return TODO_cfg_cleanup if cfg_altered is true.
10006
10007         PR rtl-optimization/81308
10008         * recog.c (split_all_insns): Conditionally cleanup the CFG after
10009         splitting insns.
10010
10011 2018-01-08  Vidya Praveen  <vidyapraveen@arm.com>
10012
10013         PR target/83663 - Revert r255946
10014         * config/aarch64/aarch64.c (aarch64_expand_vector_init): Modify code
10015         generation for cases where splatting a value is not useful.
10016         * simplify-rtx.c (simplify_ternary_operation): Simplify vec_merge
10017         across a vec_duplicate and a paradoxical subreg forming a vector
10018         mode to a vec_concat.
10019
10020 2018-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
10021
10022         * config/arm/t-aprofile (MULTILIB_MATCHES): Add mapping rules for
10023         -march=armv8.3-a variants.
10024         * config/arm/t-multilib: Likewise.
10025         * config/arm/t-arm-elf: Likewise.  Handle dotprod extension.
10026
10027 2018-01-08  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
10028
10029         * config/rs6000/rs6000.md (cceq_ior_compare): Remove * so I can use it
10030         to generate rtl.
10031         (cceq_ior_compare_complement): Give it a name so I can use it, and
10032         change boolean_or_operator predicate to boolean_operator so it can
10033         be used to generate a crand.
10034         (eqne): New code iterator.
10035         (bd/bd_neg): New code_attrs.
10036         (<bd>_<mode>): New name for ctr<mode>_internal[12] now combined into
10037         a single define_insn.
10038         (<bd>tf_<mode>): A new insn pattern for the conditional form branch
10039         decrement (bdnzt/bdnzf/bdzt/bdzf).
10040         * config/rs6000/rs6000.c (rs6000_legitimate_combined_insn): Updated
10041         with the new names of the branch decrement patterns, and added the
10042         names of the branch decrement conditional patterns.
10043
10044 2018-01-08  Richard Biener  <rguenther@suse.de>
10045
10046         PR tree-optimization/83563
10047         * graphite.c (canonicalize_loop_closed_ssa_form): Reset the SCEV
10048         cache.
10049
10050 2018-01-08  Richard Biener  <rguenther@suse.de>
10051
10052         PR middle-end/83713
10053         * convert.c (do_narrow): Properly guard TYPE_OVERFLOW_WRAPS checks.
10054
10055 2018-01-08  Richard Biener  <rguenther@suse.de>
10056
10057         PR tree-optimization/83685
10058         * tree-ssa-pre.c (create_expression_by_pieces): Do not insert
10059         references to abnormals.
10060
10061 2018-01-08  Richard Biener  <rguenther@suse.de>
10062
10063         PR lto/83719
10064         * dwarf2out.c (output_indirect_strings): Handle empty
10065         skeleton_debug_str_hash.
10066         (dwarf2out_early_finish): Index strings for -gsplit-dwarf.
10067
10068 2018-01-08  Claudiu Zissulescu  <claziss@synopsys.com>
10069
10070         * config/arc/arc.c (TARGET_TRAMPOLINE_ADJUST_ADDRESS): Delete.
10071         (emit_store_direct): Likewise.
10072         (arc_trampoline_adjust_address): Likewise.
10073         (arc_asm_trampoline_template): New function.
10074         (arc_initialize_trampoline): Use asm_trampoline_template.
10075         (TARGET_ASM_TRAMPOLINE_TEMPLATE): Define.
10076         * config/arc/arc.h (TRAMPOLINE_SIZE): Adjust to 16.
10077         * config/arc/arc.md (flush_icache): Delete pattern.
10078
10079 2018-01-08  Claudiu Zissulescu  <claziss@synopsys.com>
10080
10081         * config/arc/arc-c.def (__ARC_UNALIGNED__): New define.
10082         * config/arc/arc.h (STRICT_ALIGNMENT): Control this macro using
10083         munaligned-access.
10084
10085 2018-01-08  Sebastian Huber  <sebastian.huber@embedded-brains.de>
10086
10087         PR target/83681
10088         * config/epiphany/epiphany.h (make_pass_mode_switch_use): Guard
10089         by not USED_FOR_TARGET.
10090         (make_pass_resolve_sw_modes): Likewise.
10091
10092 2018-01-08  Sebastian Huber  <sebastian.huber@embedded-brains.de>
10093
10094         * config/nios2/nios2.h (nios2_section_threshold): Guard by not
10095         USED_FOR_TARGET.
10096
10097 2018-01-08  Richard Biener  <rguenther@suse.de>
10098
10099         PR middle-end/83580
10100         * tree-data-ref.c (split_constant_offset): Remove STRIP_NOPS.
10101
10102 2018-01-08  Richard Biener  <rguenther@suse.de>
10103
10104         PR middle-end/83517
10105         * match.pd ((t * 2) / 2) -> t): Add missing :c.
10106
10107 2018-01-06  Aldy Hernandez  <aldyh@redhat.com>
10108
10109         PR middle-end/81897
10110         * tree-ssa-uninit.c (compute_control_dep_chain): Do not bail on
10111         basic blocks with a small number of successors.
10112         (convert_control_dep_chain_into_preds): Improve handling of
10113         forwarder blocks.
10114         (dump_predicates): Split apart into...
10115         (dump_pred_chain): ...here...
10116         (dump_pred_info): ...and here.
10117         (can_one_predicate_be_invalidated_p): Add debugging printfs.
10118         (can_chain_union_be_invalidated_p): Improve check for invalidation
10119         of paths.
10120         (uninit_uses_cannot_happen): Avoid unnecessary if
10121         convert_control_dep_chain_into_preds yielded nothing.
10122
10123 2018-01-06  Martin Sebor  <msebor@redhat.com>
10124
10125         PR tree-optimization/83640
10126         * gimple-ssa-warn-restrict.c (builtin_access::builtin_access): Avoid
10127         subtracting negative offset from size.
10128         (builtin_access::overlap): Adjust offset bounds of the access to fall
10129         within the size of the object if possible.
10130
10131 2018-01-06  Richard Sandiford  <richard.sandiford@linaro.org>
10132
10133         PR rtl-optimization/83699
10134         * expmed.c (extract_bit_field_1): Restrict the vector usage of
10135         extract_bit_field_as_subreg to cases in which the extracted
10136         value is also a vector.
10137
10138         * lra-constraints.c (process_alt_operands): Test for the equivalence
10139         substitutions when detecting a possible reload cycle.
10140
10141 2018-01-06  Jakub Jelinek  <jakub@redhat.com>
10142
10143         PR debug/83480
10144         * toplev.c (process_options): Don't enable debug_nonbind_markers_p
10145         by default if flag_selective_schedling{,2}.  Formatting fixes.
10146
10147         PR rtl-optimization/83682
10148         * rtl.h (const_vec_duplicate_p): Only return true for VEC_DUPLICATE
10149         if it has non-VECTOR_MODE element mode.
10150         (vec_duplicate_p): Likewise.
10151
10152         PR middle-end/83694
10153         * cfgexpand.c (expand_debug_expr): Punt if mode1 is VOIDmode
10154         and bitsize might be greater than MAX_BITSIZE_MODE_ANY_INT.
10155
10156 2018-01-05  Jakub Jelinek  <jakub@redhat.com>
10157
10158         PR target/83604
10159         * config/i386/i386-builtin.def
10160         (__builtin_ia32_vgf2p8affineinvqb_v64qi,
10161         __builtin_ia32_vgf2p8affineqb_v64qi, __builtin_ia32_vgf2p8mulb_v64qi):
10162         Require also OPTION_MASK_ISA_AVX512F in addition to
10163         OPTION_MASK_ISA_GFNI.
10164         (__builtin_ia32_vgf2p8affineinvqb_v16qi_mask,
10165         __builtin_ia32_vgf2p8affineqb_v16qi_mask): Require
10166         OPTION_MASK_ISA_AVX512VL instead of OPTION_MASK_ISA_SSE in addition
10167         to OPTION_MASK_ISA_GFNI.
10168         (__builtin_ia32_vgf2p8mulb_v32qi_mask): Require
10169         OPTION_MASK_ISA_AVX512VL in addition to OPTION_MASK_ISA_GFNI and
10170         OPTION_MASK_ISA_AVX512BW.
10171         (__builtin_ia32_vgf2p8mulb_v16qi_mask): Require
10172         OPTION_MASK_ISA_AVX512VL instead of OPTION_MASK_ISA_AVX512BW in
10173         addition to OPTION_MASK_ISA_GFNI.
10174         (__builtin_ia32_vgf2p8affineinvqb_v16qi,
10175         __builtin_ia32_vgf2p8affineqb_v16qi, __builtin_ia32_vgf2p8mulb_v16qi):
10176         Require OPTION_MASK_ISA_SSE2 instead of OPTION_MASK_ISA_SSE in addition
10177         to OPTION_MASK_ISA_GFNI.
10178         * config/i386/i386.c (def_builtin): Change to builtin isa/isa2 being
10179         a requirement for all ISAs rather than any of them with a few
10180         exceptions.
10181         (ix86_add_new_builtins): Clear OPTION_MASK_ISA_64BIT from isa before
10182         processing.
10183         (ix86_expand_builtin): Require all ISAs from builtin's isa and isa2
10184         bitmasks to be enabled with 3 exceptions, instead of requiring any
10185         enabled ISA with lots of exceptions.
10186         * config/i386/sse.md (vgf2p8affineinvqb_<mode><mask_name>,
10187         vgf2p8affineqb_<mode><mask_name>, vgf2p8mulb_<mode><mask_name>):
10188         Change avx512bw in isa attribute to avx512f.
10189         * config/i386/sgxintrin.h: Add license boilerplate.
10190         * config/i386/vaesintrin.h: Likewise.  Fix macro spelling __AVX512F
10191         to __AVX512F__ and __AVX512VL to __AVX512VL__.
10192         (_mm256_aesdec_epi128, _mm256_aesdeclast_epi128, _mm256_aesenc_epi128,
10193         _mm256_aesenclast_epi128): Enable temporarily avx if __AVX__ is not
10194         defined.
10195         * config/i386/gfniintrin.h (_mm_gf2p8mul_epi8,
10196         _mm_gf2p8affineinv_epi64_epi8, _mm_gf2p8affine_epi64_epi8): Enable
10197         temporarily sse2 rather than sse if not enabled already.
10198
10199         PR target/83604
10200         * config/i386/sse.md (VI248_VLBW): Rename to ...
10201         (VI248_AVX512VL): ... this.  Don't guard V32HI with TARGET_AVX512BW.
10202         (vpshrd_<mode><mask_name>, vpshld_<mode><mask_name>,
10203         vpshrdv_<mode>, vpshrdv_<mode>_mask, vpshrdv_<mode>_maskz,
10204         vpshrdv_<mode>_maskz_1, vpshldv_<mode>, vpshldv_<mode>_mask,
10205         vpshldv_<mode>_maskz, vpshldv_<mode>_maskz_1): Use VI248_AVX512VL
10206         mode iterator instead of VI248_VLBW.
10207
10208 2018-01-05  Jan Hubicka  <hubicka@ucw.cz>
10209
10210         * ipa-fnsummary.c (record_modified_bb_info): Add OP.
10211         (record_modified): Skip clobbers; add debug output.
10212         (param_change_prob): Use sreal frequencies.
10213
10214 2018-01-05  Richard Sandiford  <richard.sandiford@linaro.org>
10215
10216         * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Don't
10217         punt for user-aligned variables.
10218
10219 2018-01-05  Richard Sandiford  <richard.sandiford@linaro.org>
10220
10221         * tree-chrec.c (chrec_contains_symbols): Return true for
10222         POLY_INT_CST.
10223
10224 2018-01-05  Sudakshina Das  <sudi.das@arm.com>
10225
10226         PR target/82439
10227         * simplify-rtx.c (simplify_relational_operation_1): Add simplifications
10228         of (x|y) == x for BICS pattern.
10229
10230 2018-01-05  Jakub Jelinek  <jakub@redhat.com>
10231
10232         PR tree-optimization/83605
10233         * gimple-ssa-strength-reduction.c: Include tree-eh.h.
10234         (find_candidates_dom_walker::before_dom_children): Ignore stmts that
10235         can throw.
10236
10237 2018-01-05  Sebastian Huber  <sebastian.huber@embedded-brains.de>
10238
10239         * config.gcc (epiphany-*-elf*): Add (epiphany-*-rtems*) configuration.
10240         * config/epiphany/rtems.h: New file.
10241
10242 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
10243             Uros Bizjak  <ubizjak@gmail.com>
10244
10245         PR target/83554
10246         * config/i386/i386.md (*<rotate_insn>hi3_1 splitter): Use
10247         QIreg_operand instead of register_operand predicate.
10248         * config/i386/i386.c (ix86_rop_should_change_byte_p,
10249         set_rop_modrm_reg_bits, ix86_mitigate_rop): Use -mmitigate-rop in
10250         comments instead of -fmitigate[-_]rop.
10251
10252 2018-01-04  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
10253
10254         PR bootstrap/81926
10255         * cgraphunit.c (symbol_table::compile): Switch to text_section
10256         before calling assembly_start debug hook.
10257         * run-rtl-passes.c (run_rtl_passes): Likewise.
10258         Include output.h.
10259
10260 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
10261
10262         * tree-vrp.c (extract_range_from_binary_expr_1): Check
10263         range_int_cst_p rather than !symbolic_range_p before calling
10264         extract_range_from_multiplicative_op_1.
10265
10266 2018-01-04  Jeff Law  <law@redhat.com>
10267
10268         * tree-ssa-math-opts.c (execute_cse_reciprocals_1): Remove
10269         redundant test in assertion.
10270
10271 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
10272
10273         * doc/rtl.texi: Document machine_mode wrapper classes.
10274
10275 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
10276
10277         * fold-const.c (fold_ternary_loc): Check tree_fits_uhwi_p before
10278         using tree_to_uhwi.
10279
10280 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
10281
10282         * tree-ssa-forwprop.c (is_combined_permutation_identity): Allow
10283         the VEC_PERM_EXPR fold to fail.
10284
10285 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
10286
10287         PR debug/83585
10288         * bb-reorder.c (insert_section_boundary_note): Set has_bb_partition
10289         to switched_sections.
10290
10291 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
10292
10293         PR target/83680
10294         * config/arm/arm.c (arm_vectorize_vec_perm_const): Fix inverted
10295         test for d.testing.
10296
10297 2018-01-04  Peter Bergner  <bergner@vnet.ibm.com>
10298
10299         PR target/83387
10300         * config/rs6000/rs6000.c (rs6000_discover_homogeneous_aggregate): Do not
10301         allow arguments in FP registers if TARGET_HARD_FLOAT is false.
10302
10303 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
10304
10305         PR debug/83666
10306         * cfgexpand.c (expand_debug_expr) <case BIT_FIELD_REF>: Punt if mode
10307         is BLKmode and bitpos not zero or mode change is needed.
10308
10309 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
10310
10311         PR target/83675
10312         * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): Require
10313         TARGET_VIS2.
10314
10315 2018-01-04  Uros Bizjak  <ubizjak@gmail.com>
10316
10317         PR target/83628
10318         * config/alpha/alpha.md (*sadd<modesuffix>): Use ASHIFT
10319         instead of MULT rtx.  Update all corresponding splitters.
10320         (*saddl_se): Ditto.
10321         (*ssub<modesuffix>): Ditto.
10322         (*ssubl_se): Ditto.
10323         (*cmp_sadd_di): Update split patterns.
10324         (*cmp_sadd_si): Ditto.
10325         (*cmp_sadd_sidi): Ditto.
10326         (*cmp_ssub_di): Ditto.
10327         (*cmp_ssub_si): Ditto.
10328         (*cmp_ssub_sidi): Ditto.
10329         * config/alpha/predicates.md (const23_operand): New predicate.
10330         * config/alpha/alpha.c (alpha_rtx_costs) [PLUS, MINUS]:
10331         Look for ASHIFT, not MULT inner operand.
10332         (alpha_split_conditional_move): Update for *sadd<modesuffix> change.
10333
10334 2018-01-04  Martin Liska  <mliska@suse.cz>
10335
10336         PR gcov-profile/83669
10337         * gcov.c (output_intermediate_file): Add version to intermediate
10338         gcov file.
10339         * doc/gcov.texi: Document new field 'version' in intermediate
10340         file format. Fix location of '-k' option of gcov command.
10341
10342 2018-01-04  Martin Liska  <mliska@suse.cz>
10343
10344         PR ipa/82352
10345         * ipa-icf.c (sem_function::merge): Do not cross comdat boundary.
10346
10347 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
10348
10349         * gimple-ssa-sprintf.c (parse_directive): Cast second dir.len to uhwi.
10350
10351 2018-01-03  Martin Sebor  <msebor@redhat.com>
10352
10353         PR tree-optimization/83655
10354         * gimple-ssa-warn-restrict.c (wrestrict_dom_walker::check_call): Avoid
10355         checking calls with invalid arguments.
10356
10357 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10358
10359         * tree-vect-stmts.c (vect_get_store_rhs): New function.
10360         (vectorizable_mask_load_store): Delete.
10361         (vectorizable_call): Return false for masked loads and stores.
10362         (vectorizable_store): Handle IFN_MASK_STORE.  Use vect_get_store_rhs
10363         instead of gimple_assign_rhs1.
10364         (vectorizable_load): Handle IFN_MASK_LOAD.
10365         (vect_transform_stmt): Don't set is_store for call_vec_info_type.
10366
10367 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10368
10369         * tree-vect-stmts.c (vect_build_gather_load_calls): New function,
10370         split out from..,
10371         (vectorizable_mask_load_store): ...here.
10372         (vectorizable_load): ...and here.
10373
10374 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10375
10376         * tree-vect-stmts.c (vect_build_all_ones_mask)
10377         (vect_build_zero_merge_argument): New functions, split out from...
10378         (vectorizable_load): ...here.
10379
10380 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10381
10382         * tree-vect-stmts.c (vect_check_store_rhs): New function,
10383         split out from...
10384         (vectorizable_mask_load_store): ...here.
10385         (vectorizable_store): ...and here.
10386
10387 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10388
10389         * tree-vect-stmts.c (vect_check_load_store_mask): New function,
10390         split out from...
10391         (vectorizable_mask_load_store): ...here.
10392
10393 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10394
10395         * tree-vectorizer.h (vec_load_store_type): Moved from tree-vec-stmts.c
10396         (vect_model_store_cost): Take a vec_load_store_type instead of a
10397         vect_def_type.
10398         * tree-vect-stmts.c (vec_load_store_type): Move to tree-vectorizer.h.
10399         (vect_model_store_cost): Take a vec_load_store_type instead of a
10400         vect_def_type.
10401         (vectorizable_mask_load_store): Update accordingly.
10402         (vectorizable_store): Likewise.
10403         * tree-vect-slp.c (vect_analyze_slp_cost_1): Update accordingly.
10404
10405 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10406
10407         * tree-vect-loop.c (vect_transform_loop): Stub out scalar
10408         IFN_MASK_LOAD calls here rather than...
10409         * tree-vect-stmts.c (vectorizable_mask_load_store): ...here.
10410
10411 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10412             Alan Hayward  <alan.hayward@arm.com>
10413             David Sherwood  <david.sherwood@arm.com>
10414
10415         * expmed.c (extract_bit_field_1): For vector extracts,
10416         fall back to extract_bit_field_as_subreg if vec_extract
10417         isn't available.
10418
10419 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10420             Alan Hayward  <alan.hayward@arm.com>
10421             David Sherwood  <david.sherwood@arm.com>
10422
10423         * lra-spills.c (pseudo_reg_slot_compare): Sort slots by whether
10424         they are variable or constant sized.
10425         (assign_stack_slot_num_and_sort_pseudos): Don't reuse variable-sized
10426         slots for constant-sized data.
10427
10428 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10429             Alan Hayward  <alan.hayward@arm.com>
10430             David Sherwood  <david.sherwood@arm.com>
10431
10432         * tree-vect-patterns.c (vect_recog_mask_conversion_pattern): When
10433         handling COND_EXPRs with boolean comparisons, try to find a better
10434         basis for the mask type than the boolean itself.
10435
10436 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10437
10438         * doc/rtl.texi (MAX_BITSIZE_MODE_ANY_MODE): Describe how the default
10439         is calculated and how it can be overridden.
10440         * genmodes.c (max_bitsize_mode_any_mode): New variable.
10441         (create_modes): Initialize it from MAX_BITSIZE_MODE_ANY_MODE,
10442         if defined.
10443         (emit_max_int): Use it to set the output MAX_BITSIZE_MODE_ANY_MODE,
10444         if nonzero.
10445
10446 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10447             Alan Hayward  <alan.hayward@arm.com>
10448             David Sherwood  <david.sherwood@arm.com>
10449
10450         * config/aarch64/aarch64-protos.h (aarch64_output_simd_mov_immediate):
10451         Remove the mode argument.
10452         (aarch64_simd_valid_immediate): Remove the mode and inverse
10453         arguments.
10454         * config/aarch64/iterators.md (bitsize): New iterator.
10455         * config/aarch64/aarch64-simd.md (*aarch64_simd_mov<mode>, and<mode>3)
10456         (ior<mode>3): Update calls to aarch64_output_simd_mov_immediate.
10457         * config/aarch64/constraints.md (Do, Db, Dn): Update calls to
10458         aarch64_simd_valid_immediate.
10459         * config/aarch64/predicates.md (aarch64_reg_or_orr_imm): Likewise.
10460         (aarch64_reg_or_bic_imm): Likewise.
10461         * config/aarch64/aarch64.c (simd_immediate_info): Replace mvn
10462         with an insn_type enum and msl with a modifier_type enum.
10463         Replace element_width with a scalar_mode.  Change the shift
10464         to unsigned int.  Add constructors for scalar_float_mode and
10465         scalar_int_mode elements.
10466         (aarch64_vect_float_const_representable_p): Delete.
10467         (aarch64_can_const_movi_rtx_p)
10468         (aarch64_simd_scalar_immediate_valid_for_move)
10469         (aarch64_simd_make_constant): Update call to
10470         aarch64_simd_valid_immediate.
10471         (aarch64_advsimd_valid_immediate_hs): New function.
10472         (aarch64_advsimd_valid_immediate): Likewise.
10473         (aarch64_simd_valid_immediate): Remove mode and inverse
10474         arguments.  Rewrite to use the above.  Use const_vec_duplicate_p
10475         to detect duplicated constants and use aarch64_float_const_zero_rtx_p
10476         and aarch64_float_const_representable_p on the result.
10477         (aarch64_output_simd_mov_immediate): Remove mode argument.
10478         Update call to aarch64_simd_valid_immediate and use of
10479         simd_immediate_info.
10480         (aarch64_output_scalar_simd_mov_immediate): Update call
10481         accordingly.
10482
10483 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10484             Alan Hayward  <alan.hayward@arm.com>
10485             David Sherwood  <david.sherwood@arm.com>
10486
10487         * machmode.h (mode_precision): Prefix with CONST_MODE_PRECISION.
10488         (mode_nunits): Likewise CONST_MODE_NUNITS.
10489         * machmode.def (ADJUST_NUNITS): Document.
10490         * genmodes.c (mode_data::need_nunits_adj): New field.
10491         (blank_mode): Update accordingly.
10492         (adj_nunits): New variable.
10493         (print_maybe_const_decl): Replace CATEGORY with a NEEDS_ADJ
10494         parameter.
10495         (emit_mode_size_inline): Set need_bytesize_adj for all modes
10496         listed in adj_nunits.
10497         (emit_mode_nunits_inline): Set need_nunits_adj for all modes
10498         listed in adj_nunits.  Don't emit case statements for such modes.
10499         (emit_insn_modes_h): Emit definitions of CONST_MODE_NUNITS
10500         and CONST_MODE_PRECISION.  Make CONST_MODE_SIZE expand to
10501         nothing if adj_nunits is nonnull.
10502         (emit_mode_precision, emit_mode_nunits): Use print_maybe_const_decl.
10503         (emit_mode_unit_size, emit_mode_base_align, emit_mode_ibit)
10504         (emit_mode_fbit): Update use of print_maybe_const_decl.
10505         (emit_move_size): Likewise.  Treat the array as non-const
10506         if adj_nunits.
10507         (emit_mode_adjustments): Handle adj_nunits.
10508
10509 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10510
10511         * machmode.def (VECTOR_MODES_WITH_PREFIX): Document.
10512         * genmodes.c (VECTOR_MODES_WITH_PREFIX): New macro.
10513         (VECTOR_MODES): Use it.
10514         (make_vector_modes): Take the prefix as an argument.
10515
10516 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10517             Alan Hayward  <alan.hayward@arm.com>
10518             David Sherwood  <david.sherwood@arm.com>
10519
10520         * mode-classes.def (MODE_VECTOR_BOOL): New mode class.
10521         * machmode.h (INTEGRAL_MODE_P, VECTOR_MODE_P): Return true
10522         for MODE_VECTOR_BOOL.
10523         * machmode.def (VECTOR_BOOL_MODE): Document.
10524         * genmodes.c (VECTOR_BOOL_MODE): New macro.
10525         (make_vector_bool_mode): New function.
10526         (complete_mode, emit_mode_wider, emit_mode_adjustments): Handle
10527         MODE_VECTOR_BOOL.
10528         * lto-streamer-in.c (lto_input_mode_table): Likewise.
10529         * rtx-vector-builder.c (rtx_vector_builder::find_cached_value):
10530         Likewise.
10531         * stor-layout.c (int_mode_for_mode): Likewise.
10532         * tree.c (build_vector_type_for_mode): Likewise.
10533         * varasm.c (output_constant_pool_2): Likewise.
10534         * emit-rtl.c (init_emit_once): Make sure that CONST1_RTX (BImode) and
10535         CONSTM1_RTX (BImode) are the same thing.  Initialize const_tiny_rtx
10536         for MODE_VECTOR_BOOL.
10537         * expr.c (expand_expr_real_1): Use VECTOR_MODE_P instead of a list
10538         of mode class checks.
10539         * tree-vect-generic.c (expand_vector_operation): Use VECTOR_MODE_P
10540         instead of a list of mode class checks.
10541         (expand_vector_scalar_condition): Likewise.
10542         (type_for_widest_vector_mode): Handle BImode as an inner mode.
10543
10544 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10545             Alan Hayward  <alan.hayward@arm.com>
10546             David Sherwood  <david.sherwood@arm.com>
10547
10548         * machmode.h (mode_size): Change from unsigned short to
10549         poly_uint16_pod.
10550         (mode_to_bytes): Return a poly_uint16 rather than an unsigned short.
10551         (GET_MODE_SIZE): Return a constant if ONLY_FIXED_SIZE_MODES,
10552         or if measurement_type is not polynomial.
10553         (fixed_size_mode::includes_p): Check for constant-sized modes.
10554         * genmodes.c (emit_mode_size_inline): Make mode_size_inline
10555         return a poly_uint16 rather than an unsigned short.
10556         (emit_mode_size): Change the type of mode_size from unsigned short
10557         to poly_uint16_pod.  Use ZERO_COEFFS for the initializer.
10558         (emit_mode_adjustments): Cope with polynomial vector sizes.
10559         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
10560         for GET_MODE_SIZE.
10561         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
10562         for GET_MODE_SIZE.
10563         * auto-inc-dec.c (try_merge): Treat GET_MODE_SIZE as polynomial.
10564         * builtins.c (expand_ifn_atomic_compare_exchange_into_call): Likewise.
10565         * caller-save.c (setup_save_areas): Likewise.
10566         (replace_reg_with_saved_mem): Likewise.
10567         * calls.c (emit_library_call_value_1): Likewise.
10568         * combine-stack-adj.c (combine_stack_adjustments_for_block): Likewise.
10569         * combine.c (simplify_set, make_extraction, simplify_shift_const_1)
10570         (gen_lowpart_for_combine): Likewise.
10571         * convert.c (convert_to_integer_1): Likewise.
10572         * cse.c (equiv_constant, cse_insn): Likewise.
10573         * cselib.c (autoinc_split, cselib_hash_rtx): Likewise.
10574         (cselib_subst_to_values): Likewise.
10575         * dce.c (word_dce_process_block): Likewise.
10576         * df-problems.c (df_word_lr_mark_ref): Likewise.
10577         * dwarf2cfi.c (init_one_dwarf_reg_size): Likewise.
10578         * dwarf2out.c (multiple_reg_loc_descriptor, mem_loc_descriptor)
10579         (concat_loc_descriptor, concatn_loc_descriptor, loc_descriptor)
10580         (rtl_for_decl_location): Likewise.
10581         * emit-rtl.c (gen_highpart, widen_memory_access): Likewise.
10582         * expmed.c (extract_bit_field_1, extract_integral_bit_field): Likewise.
10583         * expr.c (emit_group_load_1, clear_storage_hints): Likewise.
10584         (emit_move_complex, emit_move_multi_word, emit_push_insn): Likewise.
10585         (expand_expr_real_1): Likewise.
10586         * function.c (assign_parm_setup_block_p, assign_parm_setup_block)
10587         (pad_below): Likewise.
10588         * gimple-fold.c (optimize_atomic_compare_exchange_p): Likewise.
10589         * gimple-ssa-store-merging.c (rhs_valid_for_store_merging_p): Likewise.
10590         * ira.c (get_subreg_tracking_sizes): Likewise.
10591         * ira-build.c (ira_create_allocno_objects): Likewise.
10592         * ira-color.c (coalesced_pseudo_reg_slot_compare): Likewise.
10593         (ira_sort_regnos_for_alter_reg): Likewise.
10594         * ira-costs.c (record_operand_costs): Likewise.
10595         * lower-subreg.c (interesting_mode_p, simplify_gen_subreg_concatn)
10596         (resolve_simple_move): Likewise.
10597         * lra-constraints.c (get_reload_reg, operands_match_p): Likewise.
10598         (process_addr_reg, simplify_operand_subreg, curr_insn_transform)
10599         (lra_constraints): Likewise.
10600         (CONST_POOL_OK_P): Reject variable-sized modes.
10601         * lra-spills.c (slot, assign_mem_slot, pseudo_reg_slot_compare)
10602         (add_pseudo_to_slot, lra_spill): Likewise.
10603         * omp-low.c (omp_clause_aligned_alignment): Likewise.
10604         * optabs-query.c (get_best_extraction_insn): Likewise.
10605         * optabs-tree.c (expand_vec_cond_expr_p): Likewise.
10606         * optabs.c (expand_vec_perm_var, expand_vec_cond_expr): Likewise.
10607         (expand_mult_highpart, valid_multiword_target_p): Likewise.
10608         * recog.c (offsettable_address_addr_space_p): Likewise.
10609         * regcprop.c (maybe_mode_change): Likewise.
10610         * reginfo.c (choose_hard_reg_mode, record_subregs_of_mode): Likewise.
10611         * regrename.c (build_def_use): Likewise.
10612         * regstat.c (dump_reg_info): Likewise.
10613         * reload.c (complex_word_subreg_p, push_reload, find_dummy_reload)
10614         (find_reloads, find_reloads_subreg_address): Likewise.
10615         * reload1.c (eliminate_regs_1): Likewise.
10616         * rtlanal.c (for_each_inc_dec_find_inc_dec, rtx_cost): Likewise.
10617         * simplify-rtx.c (avoid_constant_pool_reference): Likewise.
10618         (simplify_binary_operation_1, simplify_subreg): Likewise.
10619         * targhooks.c (default_function_arg_padding): Likewise.
10620         (default_hard_regno_nregs, default_class_max_nregs): Likewise.
10621         * tree-cfg.c (verify_gimple_assign_binary): Likewise.
10622         (verify_gimple_assign_ternary): Likewise.
10623         * tree-inline.c (estimate_move_cost): Likewise.
10624         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
10625         * tree-ssa-loop-ivopts.c (add_autoinc_candidates): Likewise.
10626         (get_address_cost_ainc): Likewise.
10627         * tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Likewise.
10628         (vect_supportable_dr_alignment): Likewise.
10629         * tree-vect-loop.c (vect_determine_vectorization_factor): Likewise.
10630         (vectorizable_reduction): Likewise.
10631         * tree-vect-stmts.c (vectorizable_assignment, vectorizable_shift)
10632         (vectorizable_operation, vectorizable_load): Likewise.
10633         * tree.c (build_same_sized_truth_vector_type): Likewise.
10634         * valtrack.c (cleanup_auto_inc_dec): Likewise.
10635         * var-tracking.c (emit_note_insn_var_location): Likewise.
10636         * config/arc/arc.h (ASM_OUTPUT_CASE_END): Use as_a <scalar_int_mode>.
10637         (ADDR_VEC_ALIGN): Likewise.
10638
10639 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10640             Alan Hayward  <alan.hayward@arm.com>
10641             David Sherwood  <david.sherwood@arm.com>
10642
10643         * machmode.h (mode_to_bits): Return a poly_uint16 rather than an
10644         unsigned short.
10645         (GET_MODE_BITSIZE): Return a constant if ONLY_FIXED_SIZE_MODES,
10646         or if measurement_type is polynomial.
10647         * calls.c (shift_return_value): Treat GET_MODE_BITSIZE as polynomial.
10648         * combine.c (make_extraction): Likewise.
10649         * dse.c (find_shift_sequence): Likewise.
10650         * dwarf2out.c (mem_loc_descriptor): Likewise.
10651         * expmed.c (store_integral_bit_field, extract_bit_field_1): Likewise.
10652         (extract_bit_field, extract_low_bits): Likewise.
10653         * expr.c (convert_move, convert_modes, emit_move_insn_1): Likewise.
10654         (optimize_bitfield_assignment_op, expand_assignment): Likewise.
10655         (store_expr_with_bounds, store_field, expand_expr_real_1): Likewise.
10656         * fold-const.c (optimize_bit_field_compare, merge_ranges): Likewise.
10657         * gimple-fold.c (optimize_atomic_compare_exchange_p): Likewise.
10658         * reload.c (find_reloads): Likewise.
10659         * reload1.c (alter_reg): Likewise.
10660         * stor-layout.c (bitwise_mode_for_mode, compute_record_mode): Likewise.
10661         * targhooks.c (default_secondary_memory_needed_mode): Likewise.
10662         * tree-if-conv.c (predicate_mem_writes): Likewise.
10663         * tree-ssa-strlen.c (handle_builtin_memcmp): Likewise.
10664         * tree-vect-patterns.c (adjust_bool_pattern): Likewise.
10665         * tree-vect-stmts.c (vectorizable_simd_clone_call): Likewise.
10666         * valtrack.c (dead_debug_insert_temp): Likewise.
10667         * varasm.c (mergeable_constant_section): Likewise.
10668         * config/sh/sh.h (LOCAL_ALIGNMENT): Use as_a <fixed_size_mode>.
10669
10670 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10671             Alan Hayward  <alan.hayward@arm.com>
10672             David Sherwood  <david.sherwood@arm.com>
10673
10674         * expr.c (expand_assignment): Cope with polynomial mode sizes
10675         when assigning to a CONCAT.
10676
10677 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10678             Alan Hayward  <alan.hayward@arm.com>
10679             David Sherwood  <david.sherwood@arm.com>
10680
10681         * machmode.h (mode_precision): Change from unsigned short to
10682         poly_uint16_pod.
10683         (mode_to_precision): Return a poly_uint16 rather than an unsigned
10684         short.
10685         (GET_MODE_PRECISION): Return a constant if ONLY_FIXED_SIZE_MODES,
10686         or if measurement_type is not polynomial.
10687         (HWI_COMPUTABLE_MODE_P): Turn into a function.  Optimize the case
10688         in which the mode is already known to be a scalar_int_mode.
10689         * genmodes.c (emit_mode_precision): Change the type of mode_precision
10690         from unsigned short to poly_uint16_pod.  Use ZERO_COEFFS for the
10691         initializer.
10692         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
10693         for GET_MODE_PRECISION.
10694         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
10695         for GET_MODE_PRECISION.
10696         * combine.c (update_rsp_from_reg_equal): Treat GET_MODE_PRECISION
10697         as polynomial.
10698         (try_combine, find_split_point, combine_simplify_rtx): Likewise.
10699         (expand_field_assignment, make_extraction): Likewise.
10700         (make_compound_operation_int, record_dead_and_set_regs_1): Likewise.
10701         (get_last_value): Likewise.
10702         * convert.c (convert_to_integer_1): Likewise.
10703         * cse.c (cse_insn): Likewise.
10704         * expr.c (expand_expr_real_1): Likewise.
10705         * lra-constraints.c (simplify_operand_subreg): Likewise.
10706         * optabs-query.c (can_atomic_load_p): Likewise.
10707         * optabs.c (expand_atomic_load): Likewise.
10708         (expand_atomic_store): Likewise.
10709         * ree.c (combine_reaching_defs): Likewise.
10710         * rtl.h (partial_subreg_p, paradoxical_subreg_p): Likewise.
10711         * rtlanal.c (nonzero_bits1, lsb_bitfield_op_p): Likewise.
10712         * tree.h (type_has_mode_precision_p): Likewise.
10713         * ubsan.c (instrument_si_overflow): Likewise.
10714
10715 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10716             Alan Hayward  <alan.hayward@arm.com>
10717             David Sherwood  <david.sherwood@arm.com>
10718
10719         * tree.h (TYPE_VECTOR_SUBPARTS): Turn into a function and handle
10720         polynomial numbers of units.
10721         (SET_TYPE_VECTOR_SUBPARTS): Likewise.
10722         (valid_vector_subparts_p): New function.
10723         (build_vector_type): Remove temporary shim and take the number
10724         of units as a poly_uint64 rather than an int.
10725         (build_opaque_vector_type): Take the number of units as a
10726         poly_uint64 rather than an int.
10727         * tree.c (build_vector_from_ctor): Handle polynomial
10728         TYPE_VECTOR_SUBPARTS.
10729         (type_hash_canon_hash, type_cache_hasher::equal): Likewise.
10730         (uniform_vector_p, vector_type_mode, build_vector): Likewise.
10731         (build_vector_from_val): If the number of units is variable,
10732         use build_vec_duplicate_cst for constant operands and
10733         VEC_DUPLICATE_EXPR otherwise.
10734         (make_vector_type): Remove temporary is_constant ().
10735         (build_vector_type, build_opaque_vector_type): Take the number of
10736         units as a poly_uint64 rather than an int.
10737         (check_vector_cst): Handle polynomial TYPE_VECTOR_SUBPARTS and
10738         VECTOR_CST_NELTS.
10739         * cfgexpand.c (expand_debug_expr): Likewise.
10740         * expr.c (count_type_elements, categorize_ctor_elements_1): Likewise.
10741         (store_constructor, expand_expr_real_1): Likewise.
10742         (const_scalar_mask_from_tree): Likewise.
10743         * fold-const-call.c (fold_const_reduction): Likewise.
10744         * fold-const.c (const_binop, const_unop, fold_convert_const): Likewise.
10745         (operand_equal_p, fold_vec_perm, fold_ternary_loc): Likewise.
10746         (native_encode_vector, vec_cst_ctor_to_array): Likewise.
10747         (fold_relational_const): Likewise.
10748         (native_interpret_vector): Likewise.  Change the size from an
10749         int to an unsigned int.
10750         * gimple-fold.c (gimple_fold_stmt_to_constant_1): Handle polynomial
10751         TYPE_VECTOR_SUBPARTS.
10752         (gimple_fold_indirect_ref, gimple_build_vector): Likewise.
10753         (gimple_build_vector_from_val): Use VEC_DUPLICATE_EXPR when
10754         duplicating a non-constant operand into a variable-length vector.
10755         * hsa-brig.c (hsa_op_immed::emit_to_buffer): Handle polynomial
10756         TYPE_VECTOR_SUBPARTS and VECTOR_CST_NELTS.
10757         * ipa-icf.c (sem_variable::equals): Likewise.
10758         * match.pd: Likewise.
10759         * omp-simd-clone.c (simd_clone_subparts): Likewise.
10760         * print-tree.c (print_node): Likewise.
10761         * stor-layout.c (layout_type): Likewise.
10762         * targhooks.c (default_builtin_vectorization_cost): Likewise.
10763         * tree-cfg.c (verify_gimple_comparison): Likewise.
10764         (verify_gimple_assign_binary): Likewise.
10765         (verify_gimple_assign_ternary): Likewise.
10766         (verify_gimple_assign_single): Likewise.
10767         * tree-pretty-print.c (dump_generic_node): Likewise.
10768         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
10769         (simplify_bitfield_ref, is_combined_permutation_identity): Likewise.
10770         * tree-vect-data-refs.c (vect_permute_store_chain): Likewise.
10771         (vect_grouped_load_supported, vect_permute_load_chain): Likewise.
10772         (vect_shift_permute_load_chain): Likewise.
10773         * tree-vect-generic.c (nunits_for_known_piecewise_op): Likewise.
10774         (expand_vector_condition, optimize_vector_constructor): Likewise.
10775         (lower_vec_perm, get_compute_type): Likewise.
10776         * tree-vect-loop.c (vect_determine_vectorization_factor): Likewise.
10777         (get_initial_defs_for_reduction, vect_transform_loop): Likewise.
10778         * tree-vect-patterns.c (vect_recog_bool_pattern): Likewise.
10779         (vect_recog_mask_conversion_pattern): Likewise.
10780         * tree-vect-slp.c (vect_supported_load_permutation_p): Likewise.
10781         (vect_get_constant_vectors, vect_transform_slp_perm_load): Likewise.
10782         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
10783         (get_group_load_store_type, vectorizable_mask_load_store): Likewise.
10784         (vectorizable_bswap, simd_clone_subparts, vectorizable_assignment)
10785         (vectorizable_shift, vectorizable_operation, vectorizable_store)
10786         (vectorizable_load, vect_is_simple_cond, vectorizable_comparison)
10787         (supportable_widening_operation): Likewise.
10788         (supportable_narrowing_operation): Likewise.
10789         * tree-vector-builder.c (tree_vector_builder::binary_encoded_nelts):
10790         Likewise.
10791         * varasm.c (output_constant): Likewise.
10792
10793 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10794             Alan Hayward  <alan.hayward@arm.com>
10795             David Sherwood  <david.sherwood@arm.com>
10796
10797         * tree-vect-data-refs.c (vect_permute_store_chain): Reorganize
10798         so that both the length == 3 and length != 3 cases set up their
10799         own permute vectors.  Add comments explaining why we know the
10800         number of elements is constant.
10801         (vect_permute_load_chain): Likewise.
10802
10803 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10804             Alan Hayward  <alan.hayward@arm.com>
10805             David Sherwood  <david.sherwood@arm.com>
10806
10807         * machmode.h (mode_nunits): Change from unsigned char to
10808         poly_uint16_pod.
10809         (ONLY_FIXED_SIZE_MODES): New macro.
10810         (pod_mode::measurement_type, scalar_int_mode::measurement_type)
10811         (scalar_float_mode::measurement_type, scalar_mode::measurement_type)
10812         (complex_mode::measurement_type, fixed_size_mode::measurement_type):
10813         New typedefs.
10814         (mode_to_nunits): Return a poly_uint16 rather than an unsigned short.
10815         (GET_MODE_NUNITS): Return a constant if ONLY_FIXED_SIZE_MODES,
10816         or if measurement_type is not polynomial.
10817         * genmodes.c (ZERO_COEFFS): New macro.
10818         (emit_mode_nunits_inline): Make mode_nunits_inline return a
10819         poly_uint16.
10820         (emit_mode_nunits): Change the type of mode_nunits to poly_uint16_pod.
10821         Use ZERO_COEFFS when emitting initializers.
10822         * data-streamer.h (bp_pack_poly_value): New function.
10823         (bp_unpack_poly_value): Likewise.
10824         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
10825         for GET_MODE_NUNITS.
10826         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
10827         for GET_MODE_NUNITS.
10828         * tree.c (make_vector_type): Remove temporary shim and make
10829         the real function take the number of units as a poly_uint64
10830         rather than an int.
10831         (build_vector_type_for_mode): Handle polynomial nunits.
10832         * dwarf2out.c (loc_descriptor, add_const_value_attribute): Likewise.
10833         * emit-rtl.c (const_vec_series_p_1): Likewise.
10834         (gen_rtx_CONST_VECTOR): Likewise.
10835         * fold-const.c (test_vec_duplicate_folding): Likewise.
10836         * genrecog.c (validate_pattern): Likewise.
10837         * optabs-query.c (can_vec_perm_var_p, can_mult_highpart_p): Likewise.
10838         * optabs-tree.c (expand_vec_cond_expr_p): Likewise.
10839         * optabs.c (expand_vector_broadcast, expand_binop_directly): Likewise.
10840         (shift_amt_for_vec_perm_mask, expand_vec_perm_var): Likewise.
10841         (expand_vec_cond_expr, expand_mult_highpart): Likewise.
10842         * rtlanal.c (subreg_get_info): Likewise.
10843         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
10844         (vect_grouped_load_supported): Likewise.
10845         * tree-vect-generic.c (type_for_widest_vector_mode): Likewise.
10846         * tree-vect-loop.c (have_whole_vector_shift): Likewise.
10847         * simplify-rtx.c (simplify_unary_operation_1): Likewise.
10848         (simplify_const_unary_operation, simplify_binary_operation_1)
10849         (simplify_const_binary_operation, simplify_ternary_operation)
10850         (test_vector_ops_duplicate, test_vector_ops): Likewise.
10851         (simplify_immed_subreg): Use GET_MODE_NUNITS on a fixed_size_mode
10852         instead of CONST_VECTOR_NUNITS.
10853         * varasm.c (output_constant_pool_2): Likewise.
10854         * rtx-vector-builder.c (rtx_vector_builder::build): Only include the
10855         explicit-encoded elements in the XVEC for variable-length vectors.
10856
10857 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10858
10859         * lra-constraints.c (curr_insn_transform): Use partial_subreg_p.
10860
10861 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10862             Alan Hayward  <alan.hayward@arm.com>
10863             David Sherwood  <david.sherwood@arm.com>
10864
10865         * coretypes.h (fixed_size_mode): Declare.
10866         (fixed_size_mode_pod): New typedef.
10867         * builtins.h (target_builtins::x_apply_args_mode)
10868         (target_builtins::x_apply_result_mode): Change type to
10869         fixed_size_mode_pod.
10870         * builtins.c (apply_args_size, apply_result_size, result_vector)
10871         (expand_builtin_apply_args_1, expand_builtin_apply)
10872         (expand_builtin_return): Update accordingly.
10873
10874 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
10875
10876         * cse.c (hash_rtx_cb): Hash only the encoded elements.
10877         * cselib.c (cselib_hash_rtx): Likewise.
10878         * expmed.c (make_tree): Build VECTOR_CSTs directly from the
10879         CONST_VECTOR encoding.
10880
10881 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
10882             Jeff Law  <law@redhat.com>
10883
10884         PR target/83641
10885         * config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): For
10886         noreturn probe, use gen_pop instead of ix86_emit_restore_reg_using_pop,
10887         only set RTX_FRAME_RELATED_P on both the push and pop if cfa_reg is sp
10888         and add REG_CFA_ADJUST_CFA notes in that case to both insns.
10889
10890         PR target/83641
10891         * config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): Do not
10892         explicitly probe *sp in a noreturn function if there were any callee
10893         register saves or frame pointer is needed.
10894
10895 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
10896
10897         PR debug/83621
10898         * cfgexpand.c (expand_debug_expr): Return NULL if mode is
10899         BLKmode for ternary, binary or unary expressions.
10900
10901         PR debug/83645
10902         * var-tracking.c (delete_vta_debug_insn): New inline function.
10903         (delete_vta_debug_insns): Add USE_CFG argument, if true, walk just
10904         insns from get_insns () to NULL instead of each bb separately.
10905         Use delete_vta_debug_insn.  No longer static.
10906         (vt_debug_insns_local, variable_tracking_main_1): Adjust
10907         delete_vta_debug_insns callers.
10908         * rtl.h (delete_vta_debug_insns): Declare.
10909         * final.c (rest_of_handle_final): Call delete_vta_debug_insns
10910         instead of variable_tracking_main.
10911
10912 2018-01-03  Martin Sebor  <msebor@redhat.com>
10913
10914         PR tree-optimization/83603
10915         * calls.c (maybe_warn_nonstring_arg): Avoid accessing function
10916         arguments past the endof the argument list in functions declared
10917         without a prototype.
10918         * gimple-ssa-warn-restrict.c (wrestrict_dom_walker::check_call):
10919         Avoid checking when arguments are null.
10920
10921 2018-01-03  Martin Sebor  <msebor@redhat.com>
10922
10923         PR c/83559
10924         * doc/extend.texi (attribute const): Fix a typo.
10925         * ipa-pure-const.c ((warn_function_const, warn_function_pure): Avoid
10926         issuing -Wsuggest-attribute for void functions.
10927
10928 2018-01-03  Martin Sebor  <msebor@redhat.com>
10929
10930         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Use
10931         offset_int::from instead of wide_int::to_shwi.
10932         (maybe_diag_overlap): Remove assertion.
10933         Use HOST_WIDE_INT_PRINT_DEC instead of %lli.
10934         * gimple-ssa-sprintf.c (format_directive): Same.
10935         (parse_directive): Same.
10936         (sprintf_dom_walker::compute_format_length): Same.
10937         (try_substitute_return_value): Same.
10938
10939 2018-01-03  Jeff Law  <law@redhat.com>
10940
10941         PR middle-end/83654
10942         * explow.c (anti_adjust_stack_and_probe_stack_clash): Test a
10943         non-constant residual for zero at runtime and avoid probing in
10944         that case.  Reorganize code for trailing problem to mirror handling
10945         of the residual.
10946
10947 2018-01-03  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
10948
10949         PR tree-optimization/83501
10950         * tree-ssa-strlen.c (get_string_cst): New.
10951         (handle_char_store): Call get_string_cst.
10952
10953 2018-01-03  Martin Liska  <mliska@suse.cz>
10954
10955         PR tree-optimization/83593
10956         * tree-ssa-strlen.c: Include tree-cfg.h.
10957         (strlen_check_and_optimize_stmt): Add new argument cleanup_eh.
10958         (strlen_dom_walker): Add new member variable m_cleanup_cfg.
10959         (strlen_dom_walker::strlen_dom_walker): Initialize m_cleanup_cfg
10960         to false.
10961         (strlen_dom_walker::before_dom_children): Call
10962         gimple_purge_dead_eh_edges. Dump tranformation with details
10963         dump flags.
10964         (strlen_dom_walker::before_dom_children): Update call by adding
10965         new argument cleanup_eh.
10966         (pass_strlen::execute): Return TODO_cleanup_cfg if needed.
10967
10968 2018-01-03  Martin Liska  <mliska@suse.cz>
10969
10970         PR ipa/83549
10971         * cif-code.def (VARIADIC_THUNK): New enum value.
10972         * ipa-fnsummary.c (compute_fn_summary): Do not inline variadic
10973         thunks.
10974
10975 2018-01-03  Jan Beulich  <jbeulich@suse.com>
10976
10977         * sse.md (mov<mode>_internal): Tighten condition for when to use
10978         vmovdqu<ssescalarsize> for TI and OI modes.
10979
10980 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
10981
10982         Update copyright years.
10983
10984 2018-01-03  Martin Liska  <mliska@suse.cz>
10985
10986         PR ipa/83594
10987         * ipa-visibility.c (function_and_variable_visibility): Skip
10988         functions with noipa attribure.
10989
10990 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
10991
10992         * gcc.c (process_command): Update copyright notice dates.
10993         * gcov-dump.c (print_version): Ditto.
10994         * gcov.c (print_version): Ditto.
10995         * gcov-tool.c (print_version): Ditto.
10996         * gengtype.c (create_file): Ditto.
10997         * doc/cpp.texi: Bump @copying's copyright year.
10998         * doc/cppinternals.texi: Ditto.
10999         * doc/gcc.texi: Ditto.
11000         * doc/gccint.texi: Ditto.
11001         * doc/gcov.texi: Ditto.
11002         * doc/install.texi: Ditto.
11003         * doc/invoke.texi: Ditto.
11004
11005 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11006
11007         * vector-builder.h (vector_builder::m_full_nelts): Change from
11008         unsigned int to poly_uint64.
11009         (vector_builder::full_nelts): Update prototype accordingly.
11010         (vector_builder::new_vector): Likewise.
11011         (vector_builder::encoded_full_vector_p): Handle polynomial full_nelts.
11012         (vector_builder::operator ==): Likewise.
11013         (vector_builder::finalize): Likewise.
11014         * int-vector-builder.h (int_vector_builder::int_vector_builder):
11015         Take the number of elements as a poly_uint64 rather than an
11016         unsigned int.
11017         * vec-perm-indices.h (vec_perm_indices::m_nelts_per_input): Change
11018         from unsigned int to poly_uint64.
11019         (vec_perm_indices::vec_perm_indices): Update prototype accordingly.
11020         (vec_perm_indices::new_vector): Likewise.
11021         (vec_perm_indices::length): Likewise.
11022         (vec_perm_indices::nelts_per_input): Likewise.
11023         (vec_perm_indices::input_nelts): Likewise.
11024         * vec-perm-indices.c (vec_perm_indices::new_vector): Take the
11025         number of elements per input as a poly_uint64 rather than an
11026         unsigned int.  Use the original encoding for variable-length
11027         vectors, rather than clamping each individual element.
11028         For the second and subsequent elements in each pattern,
11029         clamp the step and base before clamping their sum.
11030         (vec_perm_indices::series_p): Handle polynomial element counts.
11031         (vec_perm_indices::all_in_range_p): Likewise.
11032         (vec_perm_indices_to_tree): Likewise.
11033         (vec_perm_indices_to_rtx): Likewise.
11034         * tree-vect-stmts.c (vect_gen_perm_mask_any): Likewise.
11035         * tree-vector-builder.c (tree_vector_builder::new_unary_operation)
11036         (tree_vector_builder::new_binary_operation): Handle polynomial
11037         element counts.  Return false if we need to know the number
11038         of elements at compile time.
11039         * fold-const.c (fold_vec_perm): Punt if the number of elements
11040         isn't known at compile time.
11041
11042 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11043
11044         * vec-perm-indices.h (vec_perm_builder): Change element type
11045         from HOST_WIDE_INT to poly_int64.
11046         (vec_perm_indices::element_type): Update accordingly.
11047         (vec_perm_indices::clamp): Handle polynomial element_types.
11048         * vec-perm-indices.c (vec_perm_indices::series_p): Likewise.
11049         (vec_perm_indices::all_in_range_p): Likewise.
11050         (tree_to_vec_perm_builder): Check for poly_int64 trees rather
11051         than shwi trees.
11052         * vector-builder.h (vector_builder::stepped_sequence_p): Handle
11053         polynomial vec_perm_indices element types.
11054         * int-vector-builder.h (int_vector_builder::equal_p): Likewise.
11055         * fold-const.c (fold_vec_perm): Likewise.
11056         * optabs.c (shift_amt_for_vec_perm_mask): Likewise.
11057         * tree-vect-generic.c (lower_vec_perm): Likewise.
11058         * tree-vect-slp.c (vect_transform_slp_perm_load): Likewise.
11059         * config/aarch64/aarch64.c (aarch64_evpc_tbl): Cast d->perm
11060         element type to HOST_WIDE_INT.
11061
11062 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11063             Alan Hayward  <alan.hayward@arm.com>
11064             David Sherwood  <david.sherwood@arm.com>
11065
11066         * alias.c (addr_side_effect_eval): Take the size as a poly_int64
11067         rather than an int.  Use plus_constant.
11068         (memrefs_conflict_p): Take the sizes as poly_int64s rather than ints.
11069         Take the offset "c" as a poly_int64 rather than a HOST_WIDE_INT.
11070
11071 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11072             Alan Hayward  <alan.hayward@arm.com>
11073             David Sherwood  <david.sherwood@arm.com>
11074
11075         * calls.c (emit_call_1, expand_call): Change struct_value_size from
11076         a HOST_WIDE_INT to a poly_int64.
11077
11078 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11079             Alan Hayward  <alan.hayward@arm.com>
11080             David Sherwood  <david.sherwood@arm.com>
11081
11082         * calls.c (load_register_parameters): Cope with polynomial
11083         mode sizes.  Require a constant size for BLKmode parameters
11084         that aren't described by a PARALLEL.  If BLOCK_REG_PADDING
11085         forces a parameter to be padded at the lsb end in order to
11086         fill a complete number of words, require the parameter size
11087         to be ordered wrt UNITS_PER_WORD.
11088
11089 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11090             Alan Hayward  <alan.hayward@arm.com>
11091             David Sherwood  <david.sherwood@arm.com>
11092
11093         * reload1.c (spill_stack_slot_width): Change element type
11094         from unsigned int to poly_uint64_pod.
11095         (alter_reg): Treat mode sizes as polynomial.
11096
11097 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11098             Alan Hayward  <alan.hayward@arm.com>
11099             David Sherwood  <david.sherwood@arm.com>
11100
11101         * reload.c (complex_word_subreg_p): New function.
11102         (reload_inner_reg_of_subreg, push_reload): Use it.
11103
11104 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11105             Alan Hayward  <alan.hayward@arm.com>
11106             David Sherwood  <david.sherwood@arm.com>
11107
11108         * lra-constraints.c (process_alt_operands): Reject matched
11109         operands whose sizes aren't ordered.
11110         (match_reload): Refer to this check here.
11111
11112 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11113             Alan Hayward  <alan.hayward@arm.com>
11114             David Sherwood  <david.sherwood@arm.com>
11115
11116         * builtins.c (expand_ifn_atomic_compare_exchange_into_call): Assert
11117         that the mode size is in the set {1, 2, 4, 8, 16}.
11118
11119 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11120             Alan Hayward  <alan.hayward@arm.com>
11121             David Sherwood  <david.sherwood@arm.com>
11122
11123         * var-tracking.c (adjust_mems): Treat mode sizes as polynomial.
11124         Use plus_constant instead of gen_rtx_PLUS.
11125
11126 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11127             Alan Hayward  <alan.hayward@arm.com>
11128             David Sherwood  <david.sherwood@arm.com>
11129
11130         * config/cr16/cr16-protos.h (cr16_push_rounding): Declare.
11131         * config/cr16/cr16.h (PUSH_ROUNDING): Move implementation to...
11132         * config/cr16/cr16.c (cr16_push_rounding): ...this new function.
11133         * config/h8300/h8300-protos.h (h8300_push_rounding): Declare.
11134         * config/h8300/h8300.h (PUSH_ROUNDING): Move implementation to...
11135         * config/h8300/h8300.c (h8300_push_rounding): ...this new function.
11136         * config/i386/i386-protos.h (ix86_push_rounding): Declare.
11137         * config/i386/i386.h (PUSH_ROUNDING): Move implementation to...
11138         * config/i386/i386.c (ix86_push_rounding): ...this new function.
11139         * config/m32c/m32c-protos.h (m32c_push_rounding): Take and return
11140         a poly_int64.
11141         * config/m32c/m32c.c (m32c_push_rounding): Likewise.
11142         * config/m68k/m68k-protos.h (m68k_push_rounding): Declare.
11143         * config/m68k/m68k.h (PUSH_ROUNDING): Move implementation to...
11144         * config/m68k/m68k.c (m68k_push_rounding): ...this new function.
11145         * config/pdp11/pdp11-protos.h (pdp11_push_rounding): Declare.
11146         * config/pdp11/pdp11.h (PUSH_ROUNDING): Move implementation to...
11147         * config/pdp11/pdp11.c (pdp11_push_rounding): ...this new function.
11148         * config/stormy16/stormy16-protos.h (xstormy16_push_rounding): Declare.
11149         * config/stormy16/stormy16.h (PUSH_ROUNDING): Move implementation to...
11150         * config/stormy16/stormy16.c (xstormy16_push_rounding): ...this new
11151         function.
11152         * expr.c (emit_move_resolve_push): Treat the input and result
11153         of PUSH_ROUNDING as a poly_int64.
11154         (emit_move_complex_push, emit_single_push_insn_1): Likewise.
11155         (emit_push_insn): Likewise.
11156         * lra-eliminations.c (mark_not_eliminable): Likewise.
11157         * recog.c (push_operand): Likewise.
11158         * reload1.c (elimination_effects): Likewise.
11159         * rtlanal.c (nonzero_bits1): Likewise.
11160         * calls.c (store_one_arg): Likewise.  Require the padding to be
11161         known at compile time.
11162
11163 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11164             Alan Hayward  <alan.hayward@arm.com>
11165             David Sherwood  <david.sherwood@arm.com>
11166
11167         * expr.c (emit_single_push_insn_1): Treat mode sizes as polynomial.
11168         Use plus_constant instead of gen_rtx_PLUS.
11169
11170 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11171             Alan Hayward  <alan.hayward@arm.com>
11172             David Sherwood  <david.sherwood@arm.com>
11173
11174         * auto-inc-dec.c (set_inc_state): Take the mode size as a poly_int64
11175         rather than an int.
11176
11177 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11178             Alan Hayward  <alan.hayward@arm.com>
11179             David Sherwood  <david.sherwood@arm.com>
11180
11181         * expr.c (expand_expr_real_1): Use tree_to_poly_uint64
11182         instead of int_size_in_bytes when handling VIEW_CONVERT_EXPRs
11183         via stack temporaries.  Treat the mode size as polynomial too.
11184
11185 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11186             Alan Hayward  <alan.hayward@arm.com>
11187             David Sherwood  <david.sherwood@arm.com>
11188
11189         * expr.c (expand_expr_real_2): When handling conversions involving
11190         unions, apply tree_to_poly_uint64 to the TYPE_SIZE rather than
11191         multiplying int_size_in_bytes by BITS_PER_UNIT.  Treat GET_MODE_BISIZE
11192         as a poly_uint64 too.
11193
11194 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11195             Alan Hayward  <alan.hayward@arm.com>
11196             David Sherwood  <david.sherwood@arm.com>
11197
11198         * rtlanal.c (subreg_get_info): Handle polynomial mode sizes.
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         * combine.c (can_change_dest_mode): Handle polynomial
11205         REGMODE_NATURAL_SIZE.
11206         * expmed.c (store_bit_field_1): Likewise.
11207         * expr.c (store_constructor): Likewise.
11208         * emit-rtl.c (validate_subreg): Operate on polynomial mode sizes
11209         and polynomial REGMODE_NATURAL_SIZE.
11210         (gen_lowpart_common): Likewise.
11211         * reginfo.c (record_subregs_of_mode): Likewise.
11212         * rtlanal.c (read_modify_subreg_p): Likewise.
11213
11214 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11215             Alan Hayward  <alan.hayward@arm.com>
11216             David Sherwood  <david.sherwood@arm.com>
11217
11218         * internal-fn.c (expand_vector_ubsan_overflow): Handle polynomial
11219         numbers of elements.
11220
11221 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11222             Alan Hayward  <alan.hayward@arm.com>
11223             David Sherwood  <david.sherwood@arm.com>
11224
11225         * match.pd: Cope with polynomial numbers of vector 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         * fold-const.c (fold_indirect_ref_1): Handle polynomial offsets
11232         in a POINTER_PLUS_EXPR.
11233
11234 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11235             Alan Hayward  <alan.hayward@arm.com>
11236             David Sherwood  <david.sherwood@arm.com>
11237
11238         * omp-simd-clone.c (simd_clone_subparts): New function.
11239         (simd_clone_init_simd_arrays): Use it instead of TYPE_VECTOR_SUBPARTS.
11240         (ipa_simd_modify_function_body): Likewise.
11241
11242 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11243             Alan Hayward  <alan.hayward@arm.com>
11244             David Sherwood  <david.sherwood@arm.com>
11245
11246         * tree-vect-generic.c (nunits_for_known_piecewise_op): New function.
11247         (expand_vector_piecewise): Use it instead of TYPE_VECTOR_SUBPARTS.
11248         (expand_vector_addition, add_rshift, expand_vector_divmod): Likewise.
11249         (expand_vector_condition, vector_element): Likewise.
11250         (subparts_gt): New function.
11251         (get_compute_type): Use subparts_gt.
11252         (count_type_subparts): Delete.
11253         (expand_vector_operations_1): Use subparts_gt instead of
11254         count_type_subparts.
11255
11256 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11257             Alan Hayward  <alan.hayward@arm.com>
11258             David Sherwood  <david.sherwood@arm.com>
11259
11260         * tree-vect-data-refs.c (vect_no_alias_p): Replace with...
11261         (vect_compile_time_alias): ...this new function.  Do the calculation
11262         on poly_ints rather than trees.
11263         (vect_prune_runtime_alias_test_list): Update call accordingly.
11264
11265 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11266             Alan Hayward  <alan.hayward@arm.com>
11267             David Sherwood  <david.sherwood@arm.com>
11268
11269         * tree-vect-slp.c (vect_build_slp_tree_1): Handle polynomial
11270         numbers of units.
11271         (vect_schedule_slp_instance): Likewise.
11272
11273 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11274             Alan Hayward  <alan.hayward@arm.com>
11275             David Sherwood  <david.sherwood@arm.com>
11276
11277         * tree-vect-slp.c (vect_get_and_check_slp_defs): Reject
11278         constant and extern definitions for variable-length vectors.
11279         (vect_get_constant_vectors): Note that the number of units
11280         is known to be constant.
11281
11282 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11283             Alan Hayward  <alan.hayward@arm.com>
11284             David Sherwood  <david.sherwood@arm.com>
11285
11286         * tree-vect-stmts.c (vectorizable_conversion): Treat the number
11287         of units as polynomial.  Choose between WIDE and NARROW based
11288         on multiple_p.
11289
11290 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11291             Alan Hayward  <alan.hayward@arm.com>
11292             David Sherwood  <david.sherwood@arm.com>
11293
11294         * tree-vect-stmts.c (simd_clone_subparts): New function.
11295         (vectorizable_simd_clone_call): Use it instead of TYPE_VECTOR_SUBPARTS.
11296
11297 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11298             Alan Hayward  <alan.hayward@arm.com>
11299             David Sherwood  <david.sherwood@arm.com>
11300
11301         * tree-vect-stmts.c (vectorizable_call): Treat the number of
11302         vectors as polynomial.  Use build_index_vector for
11303         IFN_GOMP_SIMD_LANE.
11304
11305 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11306             Alan Hayward  <alan.hayward@arm.com>
11307             David Sherwood  <david.sherwood@arm.com>
11308
11309         * tree-vect-stmts.c (get_load_store_type): Treat the number of
11310         units as polynomial.  Reject VMAT_ELEMENTWISE and VMAT_STRIDED_SLP
11311         for variable-length vectors.
11312         (vectorizable_mask_load_store): Treat the number of units as
11313         polynomial, asserting that it is constant if the condition has
11314         already been enforced.
11315         (vectorizable_store, vectorizable_load): Likewise.
11316
11317 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11318             Alan Hayward  <alan.hayward@arm.com>
11319             David Sherwood  <david.sherwood@arm.com>
11320
11321         * tree-vect-loop.c (vectorizable_live_operation): Treat the number
11322         of units as polynomial.  Punt if we can't tell at compile time
11323         which vector contains the final result.
11324
11325 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11326             Alan Hayward  <alan.hayward@arm.com>
11327             David Sherwood  <david.sherwood@arm.com>
11328
11329         * tree-vect-loop.c (vectorizable_induction): Treat the number
11330         of units as polynomial.  Punt on SLP inductions.  Use an integer
11331         VEC_SERIES_EXPR for variable-length integer reductions.  Use a
11332         cast of such a series for variable-length floating-point
11333         reductions.
11334
11335 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11336             Alan Hayward  <alan.hayward@arm.com>
11337             David Sherwood  <david.sherwood@arm.com>
11338
11339         * tree.h (build_index_vector): Declare.
11340         * tree.c (build_index_vector): New function.
11341         * tree-vect-loop.c (get_initial_defs_for_reduction): Treat the number
11342         of units as polynomial, forcibly converting it to a constant if
11343         vectorizable_reduction has already enforced the condition.
11344         (vect_create_epilog_for_reduction): Likewise.  Use build_index_vector
11345         to create a {1,2,3,...} vector.
11346         (vectorizable_reduction): Treat the number of units as polynomial.
11347         Choose vectype_in based on the largest scalar element size rather
11348         than the smallest number of units.  Enforce the restrictions
11349         relied on above.
11350
11351 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11352             Alan Hayward  <alan.hayward@arm.com>
11353             David Sherwood  <david.sherwood@arm.com>
11354
11355         * tree-vect-data-refs.c (vector_alignment_reachable_p): Treat the
11356         number of units as polynomial.
11357
11358 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11359             Alan Hayward  <alan.hayward@arm.com>
11360             David Sherwood  <david.sherwood@arm.com>
11361
11362         * target.h (vector_sizes, auto_vector_sizes): New typedefs.
11363         * target.def (autovectorize_vector_sizes): Return the vector sizes
11364         by pointer, using vector_sizes rather than a bitmask.
11365         * targhooks.h (default_autovectorize_vector_sizes): Update accordingly.
11366         * targhooks.c (default_autovectorize_vector_sizes): Likewise.
11367         * config/aarch64/aarch64.c (aarch64_autovectorize_vector_sizes):
11368         Likewise.
11369         * config/arc/arc.c (arc_autovectorize_vector_sizes): Likewise.
11370         * config/arm/arm.c (arm_autovectorize_vector_sizes): Likewise.
11371         * config/i386/i386.c (ix86_autovectorize_vector_sizes): Likewise.
11372         * config/mips/mips.c (mips_autovectorize_vector_sizes): Likewise.
11373         * omp-general.c (omp_max_vf): Likewise.
11374         * omp-low.c (omp_clause_aligned_alignment): Likewise.
11375         * optabs-query.c (can_vec_mask_load_store_p): Likewise.
11376         * tree-vect-loop.c (vect_analyze_loop): Likewise.
11377         * tree-vect-slp.c (vect_slp_bb): Likewise.
11378         * doc/tm.texi: Regenerate.
11379         * tree-vectorizer.h (current_vector_size): Change from an unsigned int
11380         to a poly_uint64.
11381         * tree-vect-stmts.c (get_vectype_for_scalar_type_and_size): Take
11382         the vector size as a poly_uint64 rather than an unsigned int.
11383         (current_vector_size): Change from an unsigned int to a poly_uint64.
11384         (get_vectype_for_scalar_type): Update accordingly.
11385         * tree.h (build_truth_vector_type): Take the size and number of
11386         units as a poly_uint64 rather than an unsigned int.
11387         (build_vector_type): Add a temporary overload that takes
11388         the number of units as a poly_uint64 rather than an unsigned int.
11389         * tree.c (make_vector_type): Likewise.
11390         (build_truth_vector_type): Take the number of units as a poly_uint64
11391         rather than an unsigned int.
11392
11393 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11394             Alan Hayward  <alan.hayward@arm.com>
11395             David Sherwood  <david.sherwood@arm.com>
11396
11397         * target.def (get_mask_mode): Take the number of units and length
11398         as poly_uint64s rather than unsigned ints.
11399         * targhooks.h (default_get_mask_mode): Update accordingly.
11400         * targhooks.c (default_get_mask_mode): Likewise.
11401         * config/i386/i386.c (ix86_get_mask_mode): Likewise.
11402         * doc/tm.texi: Regenerate.
11403
11404 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11405             Alan Hayward  <alan.hayward@arm.com>
11406             David Sherwood  <david.sherwood@arm.com>
11407
11408         * omp-general.h (omp_max_vf): Return a poly_uint64 instead of an int.
11409         * omp-general.c (omp_max_vf): Likewise.
11410         * omp-expand.c (omp_adjust_chunk_size): Update call to omp_max_vf.
11411         (expand_omp_simd): Handle polynomial safelen.
11412         * omp-low.c (omplow_simd_context): Add a default constructor.
11413         (omplow_simd_context::max_vf): Change from int to poly_uint64.
11414         (lower_rec_simd_input_clauses): Update accordingly.
11415         (lower_rec_input_clauses): Likewise.
11416
11417 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11418             Alan Hayward  <alan.hayward@arm.com>
11419             David Sherwood  <david.sherwood@arm.com>
11420
11421         * tree-vectorizer.h (vect_nunits_for_cost): New function.
11422         * tree-vect-loop.c (vect_model_reduction_cost): Use it.
11423         * tree-vect-slp.c (vect_analyze_slp_cost_1): Likewise.
11424         (vect_analyze_slp_cost): Likewise.
11425         * tree-vect-stmts.c (vect_model_store_cost): Likewise.
11426         (vect_model_load_cost): Likewise.
11427
11428 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11429             Alan Hayward  <alan.hayward@arm.com>
11430             David Sherwood  <david.sherwood@arm.com>
11431
11432         * tree-vect-slp.c (vect_record_max_nunits, vect_build_slp_tree_1)
11433         (vect_build_slp_tree_2, vect_build_slp_tree): Change max_nunits
11434         from an unsigned int * to a poly_uint64_pod *.
11435         (calculate_unrolling_factor): New function.
11436         (vect_analyze_slp_instance): Use it.  Track polynomial max_nunits.
11437
11438 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11439             Alan Hayward  <alan.hayward@arm.com>
11440             David Sherwood  <david.sherwood@arm.com>
11441
11442         * tree-vectorizer.h (_slp_instance::unrolling_factor): Change
11443         from an unsigned int to a poly_uint64.
11444         (_loop_vec_info::slp_unrolling_factor): Likewise.
11445         (_loop_vec_info::vectorization_factor): Change from an int
11446         to a poly_uint64.
11447         (MAX_VECTORIZATION_FACTOR): Bump from 64 to INT_MAX.
11448         (vect_get_num_vectors): New function.
11449         (vect_update_max_nunits, vect_vf_for_cost): Likewise.
11450         (vect_get_num_copies): Use vect_get_num_vectors.
11451         (vect_analyze_data_ref_dependences): Change max_vf from an int *
11452         to an unsigned int *.
11453         (vect_analyze_data_refs): Change min_vf from an int * to a
11454         poly_uint64 *.
11455         (vect_transform_slp_perm_load): Take the vf as a poly_uint64 rather
11456         than an unsigned HOST_WIDE_INT.
11457         * tree-vect-data-refs.c (vect_analyze_possibly_independent_ddr)
11458         (vect_analyze_data_ref_dependence): Change max_vf from an int *
11459         to an unsigned int *.
11460         (vect_analyze_data_ref_dependences): Likewise.
11461         (vect_compute_data_ref_alignment): Handle polynomial vf.
11462         (vect_enhance_data_refs_alignment): Likewise.
11463         (vect_prune_runtime_alias_test_list): Likewise.
11464         (vect_shift_permute_load_chain): Likewise.
11465         (vect_supportable_dr_alignment): Likewise.
11466         (dependence_distance_ge_vf): Take the vectorization factor as a
11467         poly_uint64 rather than an unsigned HOST_WIDE_INT.
11468         (vect_analyze_data_refs): Change min_vf from an int * to a
11469         poly_uint64 *.
11470         * tree-vect-loop-manip.c (vect_gen_scalar_loop_niters): Take
11471         vfm1 as a poly_uint64 rather than an int.  Make the same change
11472         for the returned bound_scalar.
11473         (vect_gen_vector_loop_niters): Handle polynomial vf.
11474         (vect_do_peeling): Likewise.  Update call to
11475         vect_gen_scalar_loop_niters and handle polynomial bound_scalars.
11476         (vect_gen_vector_loop_niters_mult_vf): Assert that the vf must
11477         be constant.
11478         * tree-vect-loop.c (vect_determine_vectorization_factor)
11479         (vect_update_vf_for_slp, vect_analyze_loop_2): Handle polynomial vf.
11480         (vect_get_known_peeling_cost): Likewise.
11481         (vect_estimate_min_profitable_iters, vectorizable_reduction): Likewise.
11482         (vect_worthwhile_without_simd_p, vectorizable_induction): Likewise.
11483         (vect_transform_loop): Likewise.  Use the lowest possible VF when
11484         updating the upper bounds of the loop.
11485         (vect_min_worthwhile_factor): Make static.  Return an unsigned int
11486         rather than an int.
11487         * tree-vect-slp.c (vect_attempt_slp_rearrange_stmts): Cope with
11488         polynomial unroll factors.
11489         (vect_analyze_slp_cost_1, vect_analyze_slp_instance): Likewise.
11490         (vect_make_slp_decision): Likewise.
11491         (vect_supported_load_permutation_p): Likewise, and polynomial
11492         vf too.
11493         (vect_analyze_slp_cost): Handle polynomial vf.
11494         (vect_slp_analyze_node_operations): Likewise.
11495         (vect_slp_analyze_bb_1): Likewise.
11496         (vect_transform_slp_perm_load): Take the vf as a poly_uint64 rather
11497         than an unsigned HOST_WIDE_INT.
11498         * tree-vect-stmts.c (vectorizable_simd_clone_call, vectorizable_store)
11499         (vectorizable_load): Handle polynomial vf.
11500         * tree-vectorizer.c (simduid_to_vf::vf): Change from an int to
11501         a poly_uint64.
11502         (adjust_simduid_builtins, shrink_simd_arrays): Update accordingly.
11503
11504 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11505             Alan Hayward  <alan.hayward@arm.com>
11506             David Sherwood  <david.sherwood@arm.com>
11507
11508         * match.pd: Handle bit operations involving three constants
11509         and try to fold one pair.
11510
11511 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11512
11513         * tree-vect-loop-manip.c: Include gimple-fold.h.
11514         (slpeel_make_loop_iterate_ntimes): Add step, final_iv and
11515         niters_maybe_zero parameters.  Handle other cases besides a step of 1.
11516         (vect_gen_vector_loop_niters): Add a step_vector_ptr parameter.
11517         Add a path that uses a step of VF instead of 1, but disable it
11518         for now.
11519         (vect_do_peeling): Add step_vector, niters_vector_mult_vf_var
11520         and niters_no_overflow parameters.  Update calls to
11521         slpeel_make_loop_iterate_ntimes and vect_gen_vector_loop_niters.
11522         Create a new SSA name if the latter choses to use a ste other
11523         than zero, and return it via niters_vector_mult_vf_var.
11524         * tree-vect-loop.c (vect_transform_loop): Update calls to
11525         vect_do_peeling, vect_gen_vector_loop_niters and
11526         slpeel_make_loop_iterate_ntimes.
11527         * tree-vectorizer.h (slpeel_make_loop_iterate_ntimes, vect_do_peeling)
11528         (vect_gen_vector_loop_niters): Update declarations after above changes.
11529
11530 2018-01-02  Michael Meissner  <meissner@linux.vnet.ibm.com>
11531
11532         * config/rs6000/rs6000.md (floor<mode>2): Add support for IEEE
11533         128-bit round to integer instructions.
11534         (ceil<mode>2): Likewise.
11535         (btrunc<mode>2): Likewise.
11536         (round<mode>2): Likewise.
11537
11538 2018-01-02  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
11539
11540         * config/rs6000/rs6000-string.c (expand_block_move): Allow the use of
11541         unaligned VSX load/store on P8/P9.
11542         (expand_block_clear): Allow the use of unaligned VSX
11543         load/store on P8/P9.
11544
11545 2018-01-02  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
11546
11547         * config/rs6000/rs6000-p8swap.c (swap_feeds_both_load_and_store):
11548         New function.
11549         (rs6000_analyze_swaps): Mark a web unoptimizable if it contains a
11550         swap associated with both a load and a store.
11551
11552 2018-01-02  Andrew Waterman  <andrew@sifive.com>
11553
11554         * config/riscv/linux.h (ICACHE_FLUSH_FUNC): New.
11555         * config/riscv/riscv.md (clear_cache): Use it.
11556
11557 2018-01-02  Artyom Skrobov  <tyomitch@gmail.com>
11558
11559         * web.c: Remove out-of-date comment.
11560
11561 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11562
11563         * expr.c (fixup_args_size_notes): Check that any existing
11564         REG_ARGS_SIZE notes are correct, and don't try to re-add them.
11565         (emit_single_push_insn_1): Move stack_pointer_delta adjustment to...
11566         (emit_single_push_insn): ...here.
11567
11568 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11569
11570         * rtl.h (CONST_VECTOR_ELT): Redefine to const_vector_elt.
11571         (const_vector_encoded_nelts): New function.
11572         (CONST_VECTOR_NUNITS): Redefine to use GET_MODE_NUNITS.
11573         (const_vector_int_elt, const_vector_elt): Declare.
11574         * emit-rtl.c (const_vector_int_elt_1): New function.
11575         (const_vector_elt): Likewise.
11576         * simplify-rtx.c (simplify_immed_subreg): Avoid taking the address
11577         of CONST_VECTOR_ELT.
11578
11579 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11580
11581         * expr.c: Include rtx-vector-builder.h.
11582         (const_vector_mask_from_tree): Use rtx_vector_builder and operate
11583         directly on the tree encoding.
11584         (const_vector_from_tree): Likewise.
11585         * optabs.c: Include rtx-vector-builder.h.
11586         (expand_vec_perm_var): Use rtx_vector_builder and create a repeating
11587         sequence of "u" values.
11588         * vec-perm-indices.c: Include rtx-vector-builder.h.
11589         (vec_perm_indices_to_rtx): Use rtx_vector_builder and operate
11590         directly on the vec_perm_indices encoding.
11591
11592 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11593
11594         * doc/rtl.texi (const_vector): Describe new encoding scheme.
11595         * Makefile.in (OBJS): Add rtx-vector-builder.o.
11596         * rtx-vector-builder.h: New file.
11597         * rtx-vector-builder.c: Likewise.
11598         * rtl.h (rtx_def::u2): Add a const_vector field.
11599         (CONST_VECTOR_NPATTERNS): New macro.
11600         (CONST_VECTOR_NELTS_PER_PATTERN): Likewise.
11601         (CONST_VECTOR_DUPLICATE_P): Likewise.
11602         (CONST_VECTOR_STEPPED_P): Likewise.
11603         (CONST_VECTOR_ENCODED_ELT): Likewise.
11604         (const_vec_duplicate_p): Check for a duplicated vector encoding.
11605         (unwrap_const_vec_duplicate): Likewise.
11606         (const_vec_series_p): Check for a non-duplicated vector encoding.
11607         Say that the function only returns true for integer vectors.
11608         * emit-rtl.c: Include rtx-vector-builder.h.
11609         (gen_const_vec_duplicate_1): Delete.
11610         (gen_const_vector): Call gen_const_vec_duplicate instead of
11611         gen_const_vec_duplicate_1.
11612         (const_vec_series_p_1): Operate directly on the CONST_VECTOR encoding.
11613         (gen_const_vec_duplicate): Use rtx_vector_builder.
11614         (gen_const_vec_series): Likewise.
11615         (gen_rtx_CONST_VECTOR): Likewise.
11616         * config/powerpcspe/powerpcspe.c: Include rtx-vector-builder.h.
11617         (swap_const_vector_halves): Take an rtx pointer rather than rtx.
11618         Build a new vector rather than modifying a CONST_VECTOR in-place.
11619         (handle_special_swappables): Update call accordingly.
11620         * config/rs6000/rs6000-p8swap.c: Include rtx-vector-builder.h.
11621         (swap_const_vector_halves): Take an rtx pointer rather than rtx.
11622         Build a new vector rather than modifying a CONST_VECTOR in-place.
11623         (handle_special_swappables): Update call accordingly.
11624
11625 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11626
11627         * simplify-rtx.c (simplify_const_binary_operation): Use
11628         CONST_VECTOR_ELT instead of XVECEXP.
11629
11630 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11631
11632         * tree-cfg.c (verify_gimple_assign_ternary): Allow the size of
11633         the selector elements to be different from the data elements
11634         if the selector is a VECTOR_CST.
11635         * tree-vect-stmts.c (vect_gen_perm_mask_any): Use a vector of
11636         ssizetype for the selector.
11637
11638 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11639
11640         * optabs.c (shift_amt_for_vec_perm_mask): Try using series_p
11641         before testing each element individually.
11642         * tree-vect-generic.c (lower_vec_perm): Likewise.
11643
11644 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11645
11646         * selftest.h (selftest::vec_perm_indices_c_tests): Declare.
11647         * selftest-run-tests.c (selftest::run_tests): Call it.
11648         * vector-builder.h (vector_builder::operator ==): New function.
11649         (vector_builder::operator !=): Likewise.
11650         * vec-perm-indices.h (vec_perm_indices::series_p): Declare.
11651         (vec_perm_indices::all_from_input_p): New function.
11652         * vec-perm-indices.c (vec_perm_indices::series_p): Likewise.
11653         (test_vec_perm_12, selftest::vec_perm_indices_c_tests): Likewise.
11654         * fold-const.c (fold_ternary_loc): Use tree_to_vec_perm_builder
11655         instead of reading the VECTOR_CST directly.  Detect whether both
11656         vector inputs are the same before constructing the vec_perm_indices,
11657         and update the number of inputs argument accordingly.  Use the
11658         utility functions added above.  Only construct sel2 if we need to.
11659
11660 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11661
11662         * optabs.c (expand_vec_perm_var): Use an explicit encoding for
11663         the broadcast of the low byte.
11664         (expand_mult_highpart): Use an explicit encoding for the permutes.
11665         * optabs-query.c (can_mult_highpart_p): Likewise.
11666         * tree-vect-loop.c (calc_vec_perm_mask_for_shift): Likewise.
11667         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
11668         (vectorizable_bswap): Likewise.
11669         * tree-vect-data-refs.c (vect_grouped_store_supported): Use an
11670         explicit encoding for the power-of-2 permutes.
11671         (vect_permute_store_chain): Likewise.
11672         (vect_grouped_load_supported): Likewise.
11673         (vect_permute_load_chain): Likewise.
11674
11675 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11676
11677         * vec-perm-indices.h (vec_perm_indices_to_tree): Declare.
11678         * vec-perm-indices.c (vec_perm_indices_to_tree): New function.
11679         * tree-ssa-forwprop.c (simplify_vector_constructor): Use it.
11680         * tree-vect-slp.c (vect_transform_slp_perm_load): Likewise.
11681         * tree-vect-stmts.c (vectorizable_bswap): Likewise.
11682         (vect_gen_perm_mask_any): Likewise.
11683
11684 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11685
11686         * int-vector-builder.h: New file.
11687         * vec-perm-indices.h: Include int-vector-builder.h.
11688         (vec_perm_indices): Redefine as an int_vector_builder.
11689         (auto_vec_perm_indices): Delete.
11690         (vec_perm_builder): Redefine as a stand-alone class.
11691         (vec_perm_indices::vec_perm_indices): New function.
11692         (vec_perm_indices::clamp): Likewise.
11693         * vec-perm-indices.c: Include fold-const.h and tree-vector-builder.h.
11694         (vec_perm_indices::new_vector): New function.
11695         (vec_perm_indices::new_expanded_vector): Update for new
11696         vec_perm_indices class.
11697         (vec_perm_indices::rotate_inputs): New function.
11698         (vec_perm_indices::all_in_range_p): Operate directly on the
11699         encoded form, without computing elided elements.
11700         (tree_to_vec_perm_builder): Operate directly on the VECTOR_CST
11701         encoding.  Update for new vec_perm_indices class.
11702         * optabs.c (expand_vec_perm_const): Create a vec_perm_indices for
11703         the given vec_perm_builder.
11704         (expand_vec_perm_var): Update vec_perm_builder constructor.
11705         (expand_mult_highpart): Use vec_perm_builder instead of
11706         auto_vec_perm_indices.
11707         * optabs-query.c (can_mult_highpart_p): Use vec_perm_builder and
11708         vec_perm_indices instead of auto_vec_perm_indices.  Use a single
11709         or double series encoding as appropriate.
11710         * fold-const.c (fold_ternary_loc): Use vec_perm_builder and
11711         vec_perm_indices instead of auto_vec_perm_indices.
11712         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
11713         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
11714         (vect_permute_store_chain): Likewise.
11715         (vect_grouped_load_supported): Likewise.
11716         (vect_permute_load_chain): Likewise.
11717         (vect_shift_permute_load_chain): Likewise.
11718         * tree-vect-slp.c (vect_build_slp_tree_1): Likewise.
11719         (vect_transform_slp_perm_load): Likewise.
11720         (vect_schedule_slp_instance): Likewise.
11721         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
11722         (vectorizable_mask_load_store): Likewise.
11723         (vectorizable_bswap): Likewise.
11724         (vectorizable_store): Likewise.
11725         (vectorizable_load): Likewise.
11726         * tree-vect-generic.c (lower_vec_perm): Use vec_perm_builder and
11727         vec_perm_indices instead of auto_vec_perm_indices.  Use
11728         tree_to_vec_perm_builder to read the vector from a tree.
11729         * tree-vect-loop.c (calc_vec_perm_mask_for_shift): Take a
11730         vec_perm_builder instead of a vec_perm_indices.
11731         (have_whole_vector_shift): Use vec_perm_builder and
11732         vec_perm_indices instead of auto_vec_perm_indices.  Leave the
11733         truncation to calc_vec_perm_mask_for_shift.
11734         (vect_create_epilog_for_reduction): Likewise.
11735         * config/aarch64/aarch64.c (expand_vec_perm_d::perm): Change
11736         from auto_vec_perm_indices to vec_perm_indices.
11737         (aarch64_expand_vec_perm_const_1): Use rotate_inputs on d.perm
11738         instead of changing individual elements.
11739         (aarch64_vectorize_vec_perm_const): Use new_vector to install
11740         the vector in d.perm.
11741         * config/arm/arm.c (expand_vec_perm_d::perm): Change
11742         from auto_vec_perm_indices to vec_perm_indices.
11743         (arm_expand_vec_perm_const_1): Use rotate_inputs on d.perm
11744         instead of changing individual elements.
11745         (arm_vectorize_vec_perm_const): Use new_vector to install
11746         the vector in d.perm.
11747         * config/powerpcspe/powerpcspe.c (rs6000_expand_extract_even):
11748         Update vec_perm_builder constructor.
11749         (rs6000_expand_interleave): Likewise.
11750         * config/rs6000/rs6000.c (rs6000_expand_extract_even): Likewise.
11751         (rs6000_expand_interleave): Likewise.
11752
11753 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11754
11755         * optabs-query.c (can_vec_perm_var_p): Check whether lowering
11756         to qimode could truncate the indices.
11757         * optabs.c (expand_vec_perm_var): Likewise.
11758
11759 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11760
11761         * Makefile.in (OBJS): Add vec-perm-indices.o.
11762         * vec-perm-indices.h: New file.
11763         * vec-perm-indices.c: Likewise.
11764         * target.h (vec_perm_indices): Replace with a forward class
11765         declaration.
11766         (auto_vec_perm_indices): Move to vec-perm-indices.h.
11767         * optabs.h: Include vec-perm-indices.h.
11768         (expand_vec_perm): Delete.
11769         (selector_fits_mode_p, expand_vec_perm_var): Declare.
11770         (expand_vec_perm_const): Declare.
11771         * target.def (vec_perm_const_ok): Replace with...
11772         (vec_perm_const): ...this new hook.
11773         * doc/tm.texi.in (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Replace with...
11774         (TARGET_VECTORIZE_VEC_PERM_CONST): ...this new hook.
11775         * doc/tm.texi: Regenerate.
11776         * optabs.def (vec_perm_const): Delete.
11777         * doc/md.texi (vec_perm_const): Likewise.
11778         (vec_perm): Refer to TARGET_VECTORIZE_VEC_PERM_CONST.
11779         * expr.c (expand_expr_real_2): Use expand_vec_perm_const rather than
11780         expand_vec_perm for constant permutation vectors.  Assert that
11781         the mode of variable permutation vectors is the integer equivalent
11782         of the mode that is being permuted.
11783         * optabs-query.h (selector_fits_mode_p): Declare.
11784         * optabs-query.c: Include vec-perm-indices.h.
11785         (selector_fits_mode_p): New function.
11786         (can_vec_perm_const_p): Check whether targetm.vectorize.vec_perm_const
11787         is defined, instead of checking whether the vec_perm_const_optab
11788         exists.  Use targetm.vectorize.vec_perm_const instead of
11789         targetm.vectorize.vec_perm_const_ok.  Check whether the indices
11790         fit in the vector mode before using a variable permute.
11791         * optabs.c (shift_amt_for_vec_perm_mask): Take a mode and a
11792         vec_perm_indices instead of an rtx.
11793         (expand_vec_perm): Replace with...
11794         (expand_vec_perm_const): ...this new function.  Take the selector
11795         as a vec_perm_indices rather than an rtx.  Also take the mode of
11796         the selector.  Update call to shift_amt_for_vec_perm_mask.
11797         Use targetm.vectorize.vec_perm_const instead of vec_perm_const_optab.
11798         Use vec_perm_indices::new_expanded_vector to expand the original
11799         selector into bytes.  Check whether the indices fit in the vector
11800         mode before using a variable permute.
11801         (expand_vec_perm_var): Make global.
11802         (expand_mult_highpart): Use expand_vec_perm_const.
11803         * fold-const.c: Includes vec-perm-indices.h.
11804         * tree-ssa-forwprop.c: Likewise.
11805         * tree-vect-data-refs.c: Likewise.
11806         * tree-vect-generic.c: Likewise.
11807         * tree-vect-loop.c: Likewise.
11808         * tree-vect-slp.c: Likewise.
11809         * tree-vect-stmts.c: Likewise.
11810         * config/aarch64/aarch64-protos.h (aarch64_expand_vec_perm_const):
11811         Delete.
11812         * config/aarch64/aarch64-simd.md (vec_perm_const<mode>): Delete.
11813         * config/aarch64/aarch64.c (aarch64_expand_vec_perm_const)
11814         (aarch64_vectorize_vec_perm_const_ok): Fuse into...
11815         (aarch64_vectorize_vec_perm_const): ...this new function.
11816         (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
11817         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
11818         * config/arm/arm-protos.h (arm_expand_vec_perm_const): Delete.
11819         * config/arm/vec-common.md (vec_perm_const<mode>): Delete.
11820         * config/arm/arm.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
11821         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
11822         (arm_expand_vec_perm_const, arm_vectorize_vec_perm_const_ok): Merge
11823         into...
11824         (arm_vectorize_vec_perm_const): ...this new function.  Explicitly
11825         check for NEON modes.
11826         * config/i386/i386-protos.h (ix86_expand_vec_perm_const): Delete.
11827         * config/i386/sse.md (VEC_PERM_CONST, vec_perm_const<mode>): Delete.
11828         * config/i386/i386.c (ix86_expand_vec_perm_const_1): Update comment.
11829         (ix86_expand_vec_perm_const, ix86_vectorize_vec_perm_const_ok): Merge
11830         into...
11831         (ix86_vectorize_vec_perm_const): ...this new function.  Incorporate
11832         the old VEC_PERM_CONST conditions.
11833         * config/ia64/ia64-protos.h (ia64_expand_vec_perm_const): Delete.
11834         * config/ia64/vect.md (vec_perm_const<mode>): Delete.
11835         * config/ia64/ia64.c (ia64_expand_vec_perm_const)
11836         (ia64_vectorize_vec_perm_const_ok): Merge into...
11837         (ia64_vectorize_vec_perm_const): ...this new function.
11838         * config/mips/loongson.md (vec_perm_const<mode>): Delete.
11839         * config/mips/mips-msa.md (vec_perm_const<mode>): Delete.
11840         * config/mips/mips-ps-3d.md (vec_perm_constv2sf): Delete.
11841         * config/mips/mips-protos.h (mips_expand_vec_perm_const): Delete.
11842         * config/mips/mips.c (mips_expand_vec_perm_const)
11843         (mips_vectorize_vec_perm_const_ok): Merge into...
11844         (mips_vectorize_vec_perm_const): ...this new function.
11845         * config/powerpcspe/altivec.md (vec_perm_constv16qi): Delete.
11846         * config/powerpcspe/paired.md (vec_perm_constv2sf): Delete.
11847         * config/powerpcspe/spe.md (vec_perm_constv2si): Delete.
11848         * config/powerpcspe/vsx.md (vec_perm_const<mode>): Delete.
11849         * config/powerpcspe/powerpcspe-protos.h (altivec_expand_vec_perm_const)
11850         (rs6000_expand_vec_perm_const): Delete.
11851         * config/powerpcspe/powerpcspe.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK):
11852         Delete.
11853         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
11854         (altivec_expand_vec_perm_const_le): Take each operand individually.
11855         Operate on constant selectors rather than rtxes.
11856         (altivec_expand_vec_perm_const): Likewise.  Update call to
11857         altivec_expand_vec_perm_const_le.
11858         (rs6000_expand_vec_perm_const): Delete.
11859         (rs6000_vectorize_vec_perm_const_ok): Delete.
11860         (rs6000_vectorize_vec_perm_const): New function.
11861         (rs6000_do_expand_vec_perm): Take a vec_perm_builder instead of
11862         an element count and rtx array.
11863         (rs6000_expand_extract_even): Update call accordingly.
11864         (rs6000_expand_interleave): Likewise.
11865         * config/rs6000/altivec.md (vec_perm_constv16qi): Delete.
11866         * config/rs6000/paired.md (vec_perm_constv2sf): Delete.
11867         * config/rs6000/vsx.md (vec_perm_const<mode>): Delete.
11868         * config/rs6000/rs6000-protos.h (altivec_expand_vec_perm_const)
11869         (rs6000_expand_vec_perm_const): Delete.
11870         * config/rs6000/rs6000.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
11871         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
11872         (altivec_expand_vec_perm_const_le): Take each operand individually.
11873         Operate on constant selectors rather than rtxes.
11874         (altivec_expand_vec_perm_const): Likewise.  Update call to
11875         altivec_expand_vec_perm_const_le.
11876         (rs6000_expand_vec_perm_const): Delete.
11877         (rs6000_vectorize_vec_perm_const_ok): Delete.
11878         (rs6000_vectorize_vec_perm_const): New function.  Remove stray
11879         reference to the SPE evmerge intructions.
11880         (rs6000_do_expand_vec_perm): Take a vec_perm_builder instead of
11881         an element count and rtx array.
11882         (rs6000_expand_extract_even): Update call accordingly.
11883         (rs6000_expand_interleave): Likewise.
11884         * config/sparc/sparc.md (vec_perm_constv8qi): Delete in favor of...
11885         * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): ...this
11886         new function.
11887         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
11888
11889 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11890
11891         * optabs.c (expand_vec_perm_1): Assert that SEL has an integer
11892         vector mode and that that mode matches the mode of the data
11893         being permuted.
11894         (expand_vec_perm): Split handling of non-CONST_VECTOR selectors
11895         out into expand_vec_perm_var.  Do all CONST_VECTOR handling here,
11896         directly using expand_vec_perm_1 when forcing selectors into
11897         registers.
11898         (expand_vec_perm_var): New function, split out from expand_vec_perm.
11899
11900 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11901
11902         * optabs-query.h (can_vec_perm_p): Delete.
11903         (can_vec_perm_var_p, can_vec_perm_const_p): Declare.
11904         * optabs-query.c (can_vec_perm_p): Split into...
11905         (can_vec_perm_var_p, can_vec_perm_const_p): ...these two functions.
11906         (can_mult_highpart_p): Use can_vec_perm_const_p to test whether a
11907         particular selector is valid.
11908         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
11909         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
11910         (vect_grouped_load_supported): Likewise.
11911         (vect_shift_permute_load_chain): Likewise.
11912         * tree-vect-slp.c (vect_build_slp_tree_1): Likewise.
11913         (vect_transform_slp_perm_load): Likewise.
11914         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
11915         (vectorizable_bswap): Likewise.
11916         (vect_gen_perm_mask_checked): Likewise.
11917         * fold-const.c (fold_ternary_loc): Likewise.  Don't take
11918         implementations of variable permutation vectors into account
11919         when deciding which selector to use.
11920         * tree-vect-loop.c (have_whole_vector_shift): Don't check whether
11921         vec_perm_const_optab is supported; instead use can_vec_perm_const_p
11922         with a false third argument.
11923         * tree-vect-generic.c (lower_vec_perm): Use can_vec_perm_const_p
11924         to test whether the constant selector is valid and can_vec_perm_var_p
11925         to test whether a variable selector is valid.
11926
11927 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11928
11929         * optabs-query.h (can_vec_perm_p): Take a const vec_perm_indices *.
11930         * optabs-query.c (can_vec_perm_p): Likewise.
11931         * fold-const.c (fold_vec_perm): Take a const vec_perm_indices &
11932         instead of vec_perm_indices.
11933         * tree-vectorizer.h (vect_gen_perm_mask_any): Likewise,
11934         (vect_gen_perm_mask_checked): Likewise,
11935         * tree-vect-stmts.c (vect_gen_perm_mask_any): Likewise,
11936         (vect_gen_perm_mask_checked): Likewise,
11937
11938 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
11939
11940         * optabs-query.h (qimode_for_vec_perm): Declare.
11941         * optabs-query.c (can_vec_perm_p): Split out qimode search to...
11942         (qimode_for_vec_perm): ...this new function.
11943         * optabs.c (expand_vec_perm): Use qimode_for_vec_perm.
11944
11945 2018-01-02  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
11946
11947         * rtlanal.c (canonicalize_condition): Return 0 if final rtx
11948         does not have a conditional at the top.
11949
11950 2018-01-02  Richard Biener  <rguenther@suse.de>
11951
11952         * ipa-inline.c (big_speedup_p): Fix expression.
11953
11954 2018-01-02  Jan Hubicka  <hubicka@ucw.cz>
11955
11956         PR target/81616
11957         * config/i386/x86-tune-costs.h: Increase cost of integer load costs
11958         for generic 4->6.
11959
11960 2018-01-02  Jan Hubicka  <hubicka@ucw.cz>
11961
11962         PR target/81616
11963         Generic tuning.
11964         * x86-tune-costs.h (generic_cost): Reduce cost of FDIV 20->17,
11965         cost of sqrt 20->14, DIVSS 18->13, DIVSD 32->17, SQRtSS 30->14
11966         and SQRTsD 58->18, cond_not_taken_branch_cost. 2->1. Increase
11967         cond_taken_branch_cost 3->4.
11968
11969 2018-01-01  Jakub Jelinek  <jakub@redhat.com>
11970
11971         PR tree-optimization/83581
11972         * tree-loop-distribution.c (pass_loop_distribution::execute): Return
11973         TODO_cleanup_cfg if any changes have been made.
11974
11975         PR middle-end/83608
11976         * expr.c (store_expr_with_bounds): Use simplify_gen_subreg instead of
11977         convert_modes if target mode has the right side, but different mode
11978         class.
11979
11980         PR middle-end/83609
11981         * expr.c (expand_assignment): Fix up a typo in simplify_gen_subreg
11982         last argument when extracting from CONCAT.  If either from_real or
11983         from_imag is NULL, use expansion through memory.  If result is not
11984         a CONCAT and simplify_gen_subreg fails, try to simplify_gen_subreg
11985         the parts directly to inner mode, if even that fails, use expansion
11986         through memory.
11987
11988         PR middle-end/83623
11989         * expmed.c (expand_shift_1): For 2-byte rotates by BITS_PER_UNIT,
11990         check for bswap in mode rather than HImode and use that in expand_unop
11991         too.
11992 \f
11993 Copyright (C) 2018 Free Software Foundation, Inc.
11994
11995 Copying and distribution of this file, with or without modification,
11996 are permitted in any medium without royalty provided the copyright
11997 notice and this notice are preserved.