gcc/ChangeLog

   1 2018-05-17  Richard Biener  <rguenther@suse.de>
   2
   3         PR tree-optimization/85757
   4         * tree-ssa-dse.c (dse_classify_store): Record a PHI def and
   5         remove defs that only feed that PHI from further processing.
   6
   7 2018-05-16  Jim Wilson  <jimw@sifive.com>
   8
   9         * config/riscv/riscv.md (<optab>si3_mask, <optab>si3_mask_1): Prepend
  10         asterisk to name.
  11         (<optab>di3_mask, <optab>di3_mask_1): Likewise.
  12
  13 2018-05-16  Mark Wielaard  <mark@klomp.org>
  14
  15         * dwarf2out.c (count_index_strings): New function.
  16         (output_indirect_strings): Call count_index_strings and generate
  17         header for dwarf_version >= 5.
  18
  19 2018-05-16  Mark Wielaard  <mark@klomp.org>
  20
  21         * dwarf2out.c (dwarf_FORM): New function.
  22         (set_indirect_string): Use dwarf_FORM.
  23         (reset_indirect_string): Likewise.
  24         (size_of_die): Likewise.
  25         (value_format): Likewise.
  26         (output_die): Likewise.
  27         (add_skeleton_AT_string): Likewise.
  28         (output_macinfo_op): Likewise.
  29         (index_string): Likewise.
  30         (output_index_string_offset): Likewise.
  31         (output_index_string): Likewise.
  32         (count_index_strings): Likewise.
  33
  34 2018-05-16  Carl Love  <cel@us.ibm.com>
  35
  36         * config/rs6000/rs6000.md (prefetch): Generate ISA 2.06 instructions
  37         dcbt and dcbtstt with TH=16 if operands[2] is 0 and Power 8 or newer.
  38
  39 2018-05-16  Martin Jambor  <mjambor@suse.cz>
  40
  41         * ipa-prop.c (ipa_free_all_edge_args): Remove.
  42         * ipa-prop.h (ipa_free_all_edge_args): Likewise.
  43
  44 2018-05-16  Wilco Dijkstra  <wdijkstr@arm.com>
  45
  46         * config/aarch64/aarch64.md (fma<mode>4): Change into expand pattern.
  47         (fnma<mode>4): Likewise.
  48         (fms<mode>4): Likewise.
  49         (fnms<mode>4): Likewise.
  50         (aarch64_fma<mode>4): Rename insn, reorder accumulator operand.
  51         (aarch64_fnma<mode>4): Likewise.
  52         (aarch64_fms<mode>4): Likewise.
  53         (aarch64_fnms<mode>4): Likewise.
  54         (aarch64_fnmadd<mode>4): Likewise.
  55
  56 2018-05-16  Jason Merrill  <jason@redhat.com>
  57
  58         * tree.c (warn_deprecated_use): Return bool.  Simplify logic.
  59
  60 2018-05-16  Richard Biener  <rguenther@suse.de>
  61
  62         * tree-vectorizer.h (struct stmt_info_for_cost): Add where member.
  63         (dump_stmt_cost): Declare.
  64         (add_stmt_cost): Dump cost we add.
  65         (add_stmt_costs): New function.
  66         (vect_model_simple_cost, vect_model_store_cost, vect_model_load_cost):
  67         No longer exported.
  68         (vect_analyze_stmt): Adjust prototype.
  69         (vectorizable_condition): Likewise.
  70         (vectorizable_live_operation): Likewise.
  71         (vectorizable_reduction): Likewise.
  72         (vectorizable_induction): Likewise.
  73         * tree-vect-loop.c (vect_analyze_loop_operations): Create local
  74         cost vector to pass to vectorizable_ and record afterwards.
  75         (vect_model_reduction_cost): Take cost vector argument and adjust.
  76         (vect_model_induction_cost): Likewise.
  77         (vectorizable_reduction): Likewise.
  78         (vectorizable_induction): Likewise.
  79         (vectorizable_live_operation): Likewise.
  80         * tree-vect-slp.c (vect_create_new_slp_node): Initialize
  81         SLP_TREE_NUMBER_OF_VEC_STMTS.
  82         (vect_analyze_slp_cost_1): Remove.
  83         (vect_analyze_slp_cost): Likewise.
  84         (vect_slp_analyze_node_operations): Take visited args and
  85         a target cost vector.  Avoid processing already visited stmt sets.
  86         (vect_slp_analyze_operations): Use a local cost vector to gather
  87         costs and register those of non-discarded instances.
  88         (vect_bb_vectorization_profitable_p): Use add_stmt_costs.
  89         (vect_schedule_slp_instance): Remove copying of
  90         SLP_TREE_NUMBER_OF_VEC_STMTS.  Instead assert that it is not
  91         zero.
  92         * tree-vect-stmts.c (record_stmt_cost): Remove path directly
  93         adding cost.  Record cost entry location.
  94         (vect_prologue_cost_for_slp_op): Function to compute cost of
  95         a constant or invariant generated for SLP vect in the prologue,
  96         split out from vect_analyze_slp_cost_1.
  97         (vect_model_simple_cost): Make static.  Adjust for SLP costing.
  98         (vect_model_promotion_demotion_cost): Likewise.
  99         (vect_model_store_cost): Likewise, make static.
 100         (vect_model_load_cost): Likewise.
 101         (vectorizable_bswap): Add cost vector arg and adjust.
 102         (vectorizable_call): Likewise.
 103         (vectorizable_simd_clone_call): Likewise.
 104         (vectorizable_conversion): Likewise.
 105         (vectorizable_assignment): Likewise.
 106         (vectorizable_shift): Likewise.
 107         (vectorizable_operation): Likewise.
 108         (vectorizable_store): Likewise.
 109         (vectorizable_load): Likewise.
 110         (vectorizable_condition): Likewise.
 111         (vectorizable_comparison): Likewise.
 112         (can_vectorize_live_stmts): Likewise.
 113         (vect_analyze_stmt): Likewise.
 114         (vect_transform_stmt): Adjust calls to vectorizable_*.
 115         * tree-vectorizer.c: Include gimple-pretty-print.h.
 116         (dump_stmt_cost): New function.
 117
 118 2018-05-16  Richard Biener  <rguenther@suse.de>
 119
 120         * params.def (PARAM_DSE_MAX_ALIAS_QUERIES_PER_STORE): New param.
 121         * doc/invoke.texi (dse-max-alias-queries-per-store): Document.
 122         * tree-ssa-dse.c: Include tree-ssa-loop.h.
 123         (check_name): New callback.
 124         (dse_classify_store): Track cycles via a visited bitmap of PHI
 125         defs and simplify handling of in-loop and across loop dead stores
 126         and properly fail for loop-variant refs.  Handle byte-tracking with
 127         multiple defs.  Use PARAM_DSE_MAX_ALIAS_QUERIES_PER_STORE for
 128         limiting the walk.
 129
 130 2018-05-16  Richard Sandiford  <richard.sandiford@linaro.org>
 131
 132         * tree-vectorizer.h (vect_get_vector_types_for_stmt): Declare.
 133         (vect_get_mask_type_for_stmt): Likewise.
 134         * tree-vect-slp.c (vect_two_operations_perm_ok_p): New function,
 135         split out from...
 136         (vect_build_slp_tree_1): ...here.  Use vect_get_vector_types_for_stmt
 137         to determine the statement's vector type and the vector type that
 138         should be used for calculating nunits.  Deal with cases in which
 139         the type has to be deferred.
 140         (vect_slp_analyze_node_operations): Use vect_get_vector_types_for_stmt
 141         and vect_get_mask_type_for_stmt to calculate STMT_VINFO_VECTYPE.
 142         * tree-vect-loop.c (vect_determine_vf_for_stmt_1)
 143         (vect_determine_vf_for_stmt): New functions, split out from...
 144         (vect_determine_vectorization_factor): ...here.
 145         * tree-vect-stmts.c (vect_get_vector_types_for_stmt)
 146         (vect_get_mask_type_for_stmt): New functions, split out from
 147         vect_determine_vectorization_factor.
 148
 149 2018-05-16  Richard Biener  <rguenther@suse.de>
 150
 151         * tree-cfg.c (verify_gimple_assign_ternary): Properly
 152         verify the [VEC_]COND_EXPR embedded comparison.
 153
 154 2018-05-15  Martin Sebor  <msebor@redhat.com>
 155
 156         PR tree-optimization/85753
 157         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Handle
 158         RECORD_TYPE in addition to ARRAY_TYPE.
 159
 160 2018-05-15  Martin Sebor  <msebor@redhat.com>
 161
 162         PR middle-end/85643
 163         * calls.c (get_attr_nonstring_decl): Handle MEM_REF.
 164
 165 2018-05-15  Richard Biener  <rguenther@suse.de>
 166
 167         * tree-ssa-dse.c (dse_classify_store): Remove use_stmt parameter,
 168         add by_clobber_p one.  Change algorithm to collect all defs
 169         representing uses we need to walk and try reducing them to
 170         a single one before failing.
 171         (dse_dom_walker::dse_optimize_stmt): Adjust.
 172
 173 2018-05-13  Mark Wielaard  <mark@klomp.org>
 174
 175         * dwarf2out.c (dwarf_OP): Handle DW_OP_addrx and DW_OP_constx.
 176         (size_of_loc_descr): Likewise.
 177         (output_loc_operands): Likewise.
 178         (output_loc_operands_raw): Likewise.
 179         (dw_addr_op): Use dwarf_OP () for DW_OP_constx and DW_OP_addrx.
 180         (resolve_addr_in_expr): Handle DW_OP_addrx and DW_OP_constx.
 181         (hash_loc_operands): Likewise.
 182         (compare_loc_operands): Likewise.
 183
 184 2018-05-14  Mark Wielaard  <mark@klomp.org>
 185
 186         * dwarf2out.c (count_index_addrs): New function.
 187         (dwarf2out_finish): Use count_index_addrs to calculate addrs_length.
 188
 189 2018-05-15  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
 190
 191         PR tree-optimization/83648
 192         * ipa-pure-const.c (malloc_candidate_p): Allow function with NULL
 193         return value as malloc candidate.
 194
 195 2018-05-15  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
 196
 197         PR ipa/85734
 198         * ipa-pure-const.c (warn_function_malloc): Pass value of known_finite param
 199         as true in call to suggest_attribute.
 200
 201 2018-05-14  Segher Boessenkool  <segher@kernel.crashing.org>
 202
 203         * doc/invoke.texi (RS/6000 and PowerPC Options): Delete @itemx for
 204         -mreadonly-in-sdata.
 205
 206 2018-05-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 207
 208         * config/aarch64/aarch64-simd.md (*aarch64_crypto_aese_fused):
 209         New pattern.
 210         (aarch64_crypto_aesd_fused): Likewise.
 211
 212 2018-05-14  Wilco Dijkstra  <wdijkstr@arm.com>
 213
 214         * config/aarch64/aarch64.md (mov<mode>): Remove '*' in alternatives.
 215         (movsi_aarch64): Likewise.
 216         (load_pairsi): Likewise.
 217         (load_pairdi): Likewise.
 218         (store_pairsi): Likewise.
 219         (store_pairdi): Likewise.
 220         (load_pairsf): Likewise.
 221         (load_pairdf): Likewise.
 222         (store_pairsf): Likewise.
 223         (store_pairdf): Likewise.
 224         (zero_extend): Likewise.
 225         (trunc): Swap alternatives.
 226         (fcvt_target): Add '?' to prefer w over r.
 227
 228 2018-05-14  Jakub Jelinek  <jakub@redhat.com>
 229
 230         PR target/85756
 231         * config/i386/i386.md: Disallow non-commutative arithmetics in
 232         last twpeephole for mem {+,-,&,|,^}= x; mem != 0 after cmpelim
 233         optimization.  Use COMMUTATIVE_ARITH_P test rather than != MINUS
 234         in the peephole2 before it.
 235
 236 2018-05-14  Sebastian Peryt  <sebastian.peryt@intel.com>
 237
 238         * common/config/i386/i386-common.c (OPTION_MASK_ISA_CLDEMOTE_SET,
 239         OPTION_MASK_ISA_CLDEMOTE_UNSET): New defines.
 240         (ix86_handle_option): Handle -mcldemote.
 241         * config.gcc: New header.
 242         * config/i386/cldemoteintrin.h: New file.
 243         * config/i386/cpuid.h (bit_CLDEMOTE): New bit.
 244         * config/i386/driver-i386.c (host_detect_local_cpu): Detect
 245         -mcldemote.
 246         * config/i386/i386-c.c (ix86_target_macros_internal): Handle
 247         OPTION_MASK_ISA_CLDEMOTE.
 248         * config/i386/i386.c (ix86_target_string): Add -mcldemote.
 249         (ix86_valid_target_attribute_inner_p): Ditto.
 250         (enum ix86_builtins): Add IX86_BUILTIN_CLDEMOTE.
 251         (ix86_init_mmx_sse_builtins): Define __builtin_ia32_cldemote.
 252         (ix86_expand_builtin): Expand IX86_BUILTIN_CLDEMOTE.
 253         * config/i386/i386.h (TARGET_CLDEMOTE, TARGET_CLDEMOTE_P): New.
 254         * config/i386/i386.md (UNSPECV_CLDEMOTE): New.
 255         (cldemote): New.
 256         * config/i386/i386.opt: Add -mcldemote.
 257         * config/i386/x86intrin.h: New header.
 258         * doc/invoke.texi: Add -mcldemote.
 259
 260 2018-05-14  Richard Biener  <rguenther@suse.de>
 261
 262         * doc/match-and-simplify.texi: Adjust :s documentation.
 263
 264 2018-05-14  Alexander Monakov  <amonakov@ispras.ru>
 265
 266         * sort.cc (REORDER_23): Pass the type for the temporaries instead of
 267         intended memcpy size.
 268         (REORDER_45): Likewise.
 269
 270 2018-05-13  Alexander Monakov  <amonakov@ispras.ru>
 271
 272         * sort.cc: New file.
 273         * system.h [!CHECKING_P] (qsort): Redirect to gcc_qsort.
 274         * vec.c (qsort_chk): Use gcc_qsort.
 275         * Makefile.in (OBJS-libcommon): Add sort.o.
 276         (build/sort.o): New target.  Use it...
 277         (BUILD_RTL): ... here, and...
 278         (build/gencfn-macros): ... here, and...
 279         (build/genmatch): ... here.
 280
 281 2018-05-13  Kito Cheng  <kito.cheng@gmail.com>
 282             Chung-Ju Wu  <jasonwucj@gmail.com>
 283
 284         * config.gcc (nds32*-*-*): Check that n15 is valid to --with-cpu.
 285         * config/nds32/nds32-graywolf.md: New file.
 286         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_GRAYWOLF.
 287         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n15
 288         pipeline.
 289         * config/nds32/nds32-protos.h: More declarations for n15 pipeline.
 290         * config/nds32/nds32-utils.c: More implementations for n15 pipeline.
 291         * config/nds32/nds32.md (pipeline_model): Add graywolf.
 292         * config/nds32/nds32.opt (mcpu): Support n15 pipeline cpus.
 293         * config/nds32/pipelines.md: Include n15 settings.
 294
 295 2018-05-13  Kito Cheng  <kito.cheng@gmail.com>
 296             Chung-Ju Wu  <jasonwucj@gmail.com>
 297
 298         * config.gcc (nds32*-*-*): Check that n12/n13 are valid to --with-cpu.
 299         * config/nds32/nds32-n13.md: New file.
 300         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_N12 and CPU_N13.
 301         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n12/n13
 302         pipeline.
 303         * config/nds32/nds32-protos.h: More declarations for n12/n13 pipeline.
 304         * config/nds32/nds32.md (pipeline_model): Add n13.
 305         * config/nds32/nds32.opt (mcpu): Support n12/n13 pipeline cpus.
 306         * config/nds32/pipelines.md: Include n13 settings.
 307
 308 2018-05-13  Kito Cheng  <kito.cheng@gmail.com>
 309             Chung-Ju Wu  <jasonwucj@gmail.com>
 310
 311         * config.gcc (nds32*-*-*): Check that n10/d10 are valid to --with-cpu.
 312         * config/nds32/nds32-n10.md: New file.
 313         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_N10.
 314         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n10
 315         pipeline.
 316         * config/nds32/nds32-protos.h: More declarations for n10 pipeline.
 317         * config/nds32/nds32-utils.c: More implementations for n10 pipeline.
 318         * config/nds32/nds32.md (pipeline_model): Add n10.
 319         * config/nds32/nds32.opt (mcpu): Support n10 pipeline cpus.
 320         * config/nds32/pipelines.md: Include n10 settings.
 321
 322 2018-05-13  Monk Chiang  <sh.chiang04@gmail.com>
 323             Kito Cheng  <kito.cheng@gmail.com>
 324             Chung-Ju Wu  <jasonwucj@gmail.com>
 325
 326         * config.gcc (nds32be-*-*): Handle --with-ext-dsp.
 327         * config/nds32/constants.md (unspec_element, unspec_volatile_element):
 328         Add enum values for DSP extension instructions.
 329         * config/nds32/constraints.md (Iu06, IU06, CVp5, CVs5, CVs2, CVhi):
 330         New constraints.
 331         * config/nds32/iterators.md (shifts, shiftrt, sat_plus, all_plus,
 332         sat_minus, all_minus, plus_minus, extend, sumax, sumin, sumin_max):
 333         New code iterators.
 334         (su, zs, uk, opcode, add_rsub, add_sub): New code attributes.
 335         * config/nds32/nds32-dspext.md: New file for DSP implementation.
 336         * config/nds32/nds32-intrinsic.c: Implementation of DSP extension.
 337         * config/nds32/nds32-intrinsic.md: Likewise.
 338         * config/nds32/nds32_intrinsic.h: Likewise.
 339         * config/nds32/nds32-md-auxiliary.c: Likewise.
 340         * config/nds32/nds32-memory-manipulation.c: Consider DSP extension.
 341         * config/nds32/nds32-predicates.c (const_vector_to_hwint): New.
 342         (nds32_valid_CVp5_p, nds32_valid_CVs5_p): New.
 343         (nds32_valid_CVs2_p, nds32_valid_CVhi_p): New.
 344         * config/nds32/nds32-protos.h: New declarations for DSP extension.
 345         * config/nds32/nds32-utils.c (extract_mac_non_acc_rtx): New case
 346         TYPE_DMAC in switch statement.
 347         * config/nds32/nds32.c: New checking and implementation for DSP
 348         extension instructions.
 349         * config/nds32/nds32.h: Likewise.
 350         * config/nds32/nds32.md: Likewise.
 351         * config/nds32/nds32.opt (mhw-abs, mext-dsp): New options.
 352         * config/nds32/predicates.md: Implement new predicates for DSP
 353         extension.
 354
 355 2018-05-11  Michael Meissner  <meissner@linux.vnet.ibm.com>
 356
 357         * config/rs6000/rs6000.md (mov<mode>_softfloat, FMOVE32):
 358         Reformat alternatives and attributes so it is easier to identify
 359         which constraints/attributes go with which instruction.
 360         (mov<mode>_hardfloat32, FMOVE64): Likewise.
 361         (mov<mode>_softfloat32, FMOVE64): Likewise.
 362         (mov<mode>_hardfloat64, FMOVE64): Likewise.
 363         (mov<mode>_softfloat64, FMOVE64): Likewise.
 364
 365 2018-05-11  Kelvin Nilsen  <kelvin@gcc.gnu.org>
 366
 367         * doc/extend.texi (PowerPC Built-in Functions): Rename this
 368         subsection.
 369         (Basic PowerPC Built-in Functions): The new name of the
 370         subsection previously known as "PowerPC Built-in Functions".
 371         (Basic PowerPC Built-in Functions Available on all Configurations):
 372         New subsubsection.
 373         (Basic PowerPC Built-in Functions Available on ISA 2.05): Likewise.
 374         (Basic PowerPC Built-in Functions Available on ISA 2.06): Likewise.
 375         (Basic PowerPC Built-in Functions Available on ISA 2.07): Likewise.
 376         (Basic PowerPC Built-in Functions Available on ISA 3.0): Likewise.
 377
 378 2018-05-11  Martin Jambor  <mjambor@suse.cz>
 379
 380         PR ipa/85655
 381         * ipa-cp.c (intersect_with_plats): Check that the lattice contains
 382         single const.
 383
 384 2018-05-11  Richard Earnshaw  <rearnsha@arm.com>
 385
 386         PR target/85733
 387         * config/arm/arm-cpus.in (fgroup ARMv6m): Add be8 feature.
 388
 389 2018-05-11  Sebastian Peryt  <sebastian.peryt@intel.com>
 390
 391         * common/config/i386/i386-common.c (OPTION_MASK_ISA_WAITPKG_SET,
 392         OPTION_MASK_ISA_WAITPKG_UNSET): New defines.
 393         (ix86_handle_option): Handle -mwaitpkg.
 394         * config.gcc: New header.
 395         * config/i386/cpuid.h (bit_WAITPKG): New bit.
 396         * config/i386/driver-i386.c (host_detect_local_cpu): Detect -mwaitpkg.
 397         * config/i386/i386-builtin-types.def ((UINT8, UNSIGNED, UINT64)): New
 398         function type.
 399         * config/i386/i386-c.c (ix86_target_macros_internal): Handle
 400         OPTION_MASK_ISA_WAITPKG.
 401         * config/i386/i386.c (ix86_target_string): Add -mwaitpkg.
 402         (ix86_option_override_internal): Add PTA_WAITPKG.
 403         (ix86_valid_target_attribute_inner_p): Add -mwaitpkg.
 404         (enum ix86_builtins): Add IX86_BUILTIN_UMONITOR, IX86_BUILTIN_UMWAIT,
 405         IX86_BUILTIN_TPAUSE.
 406         (ix86_init_mmx_sse_builtins): Define __builtin_ia32_umonitor,
 407         __builtin_ia32_umwait and __builtin_ia32_tpause.
 408         (ix86_expand_builtin): Expand IX86_BUILTIN_UMONITOR,
 409         IX86_BUILTIN_UMWAIT, IX86_BUILTIN_TPAUSE.
 410         * config/i386/i386.h (TARGET_WAITPKG, TARGET_WAITPKG_P): New.
 411         * config/i386/i386.md (UNSPECV_UMWAIT, UNSPECV_UMONITOR,
 412         UNSPECV_TPAUSE): New.
 413         (umwait, umwait_rex64, umonitor_<mode>, tpause, tpause_rex64): New.
 414         * config/i386/i386.opt: Add -mwaitpkg.
 415         * config/i386/waitpkgintrin.h: New file.
 416         * config/i386/x86intrin.h: New header.
 417         * doc/invoke.texi: Add -mwaitpkg.
 418
 419 2018-05-11  Richard Earnshaw  <rearnsha@arm.com>
 420
 421         PR target/85606
 422         * config/arm/arm-cpus.in: Add comment that ARMv6-m and ARMv6S-m are now
 423         equivalent.
 424         (cortex-m0): Use armv6s-m isa.
 425         (cortex-m0plus): Likewise.
 426         (cortex-m1): Likewise.
 427         (cortex-m0.small-multiply): Likewise.
 428         (cortex-m0plus.small-multiply): Likewise.
 429         (cortex-m1.small-multiply): Likewise.
 430
 431 2018-05-11  Allan Sandfeld Jensen  <allan.jensen@qt.io>
 432             Jakub Jelinek  <jakub@redhat.com>
 433
 434         PR tree-optimization/85692
 435         * tree-ssa-forwprop.c (simplify_vector_constructor): Try two
 436         source permute as well.
 437
 438 2018-05-11  Martin Liska  <mliska@suse.cz>
 439
 440         PR sanitizer/85556
 441         * doc/extend.texi: Document LLVM style format for no_sanitize
 442         attribute.
 443
 444 2018-05-10  Michael Meissner  <meissner@linux.vnet.ibm.com>
 445
 446         * config/rs6000/rs6000.c (mode_supports_dq_form): Rename
 447         mode_supports_vsx_dform_quad to mode_supports_dq_form.
 448         (mode_supports_vsx_dform_quad): Likewise.
 449         (mode_supports_vmx_dform): Move these functions to be next to the
 450         other mode_supports functions.
 451         (mode_supports_dq_form): Likewise.
 452         (quad_address_p): Change calls of mode_supports_vsx_dform_quad to
 453         mode_supports_dq_form.
 454         (reg_offset_addressing_ok_p): Likewise.
 455         (offsettable_ok_by_alignment): Likewise.
 456         (rs6000_legitimate_offset_address_p): Likewise.
 457         (legitimate_lo_sum_address_p): Likewise.
 458         (rs6000_legitimize_address): Likewise.
 459         (rs6000_legitimize_reload_address): Likewise.
 460         (rs6000_secondary_reload_inner): Likewise.
 461         (rs6000_preferred_reload_class): Likewise.
 462         (rs6000_output_move_128bit): Likewise.
 463
 464 2018-05-10  Uros Bizjak  <ubizjak@gmail.com>
 465
 466         * config/i386/i386.c (ix86_expand_builtin) <case IX86_BUILTIN_RDPID>:
 467         Generate SImode target register for null target.
 468         <case IX86_BUILTIN_XGETBV>: Ditto.
 469         <case IX86_BUILTIN_XSETBV>: Optimize LSHIFTRT generation.
 470         * config/i386/xsaveintrin.h (_xgetbv): Add missing return.
 471
 472 2018-05-10  Carl Love  <cel@us.ibm.com>
 473
 474         * config/rs6000/rs6000.md (prefetch): Generate ISA 2.06 instructions
 475         dcbtt and dcbtstt if operands[2] is 0.
 476
 477 2018-05-10  Uros Bizjak  <ubizjak@gmail.com>
 478
 479         PR target/85693
 480         * config/i386/sse.md (usadv64qi): New expander.
 481
 482 2018-05-10  Segher Boessenkool  <segher@kernel.crashing.org>
 483
 484         * config/rs6000/altivec.md (altivec_vmrghb, altivec_vmrghh,
 485         altivec_vmrghw, altivec_vmrglb, altivec_vmrglh, altivec_vmrglw): Remove
 486         -maltivec=be support.
 487         (vec_widen_umult_even_v16qi, vec_widen_smult_even_v16qi,
 488         vec_widen_umult_even_v8hi, vec_widen_smult_even_v8hi,
 489         vec_widen_umult_even_v4si, vec_widen_smult_even_v4si,
 490         vec_widen_umult_odd_v16qi, vec_widen_smult_odd_v16qi,
 491         vec_widen_umult_odd_v8hi, vec_widen_smult_odd_v8hi,
 492         vec_widen_umult_odd_v4si, vec_widen_smult_odd_v4si, altivec_vpkpx,
 493         altivec_vpks<VI_char>ss, altivec_vpks<VI_char>us,
 494         altivec_vpku<VI_char>us, altivec_vpku<VI_char>um, altivec_vsum2sws,
 495         altivec_vsumsws): Adjust.
 496         (altivec_vspltb *altivec_vspltb_internal, altivec_vsplth,
 497         *altivec_vsplth_internal, altivec_vspltw, *altivec_vspltw_internal,
 498         altivec_vspltsf, *altivec_vspltsf_internal): Remove -maltivec=be
 499         support.
 500         (altivec_vperm_<mode>, altivec_vperm_<mode>_uns,
 501         altivec_vupkhs<VU_char>, altivec_vupkls<VU_char>, altivec_vupkhpx,
 502         altivec_vupklpx, altivec_lvsl, altivec_lvsr): Adjust.
 503         (altivec_lve<VI_char>x): Delete expand.
 504         (*altivec_lve<VI_char>x_internal): Rename to...
 505         (altivec_lve<VI_char>x): ... this.
 506         (altivec_lvxl_<mode>): Delete expand.
 507         (*altivec_lvxl_<mode>_internal): Rename to ...
 508         (altivec_lvxl_<mode>): ... this.
 509         (altivec_stvxl_<mode>): Delete expand.
 510         (*altivec_stvxl_<mode>_internal): Rename to ...
 511         (altivec_stvxl_<mode>): ... this.
 512         (altivec_stve<VI_char>x): Delete expand.
 513         (*altivec_stve<VI_char>x_internal): Rename to ...
 514         (altivec_stve<VI_char>x): ... this.
 515         (doublee<mode>2, unsdoubleev4si2, doubleo<mode>2, unsdoubleov4si2,
 516         doubleh<mode>2, unsdoublehv4si2, doublel<mode>2, unsdoublelv4si2,
 517         reduc_plus_scal_<mode>): Adjust.
 518         * config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Adjust
 519         comment.
 520         (rs6000_cpu_cpp_builtins): Adjust.
 521         (altivec_resolve_overloaded_builtin): Remove -maltivec=be support.
 522         * config/rs6000/rs6000-protos.h (altivec_expand_lvx_be,
 523         altivec_expand_stvx_be, altivec_expand_stvex_be): Delete.
 524         * config/rs6000/rs6000.c (rs6000_option_override_internal): Remove
 525         -maltivec=be support.
 526         (rs6000_split_vec_extract_var): Adjust.
 527         (rs6000_split_v4si_init): Adjust.
 528         (swap_selector_for_mode): Delete.
 529         (altivec_expand_lvx_be, altivec_expand_stvx_be,
 530         altivec_expand_stvex_be): Delete.
 531         (altivec_expand_lv_builtin, altivec_expand_stv_builtin): Remove
 532         -maltivec=be support.
 533         (rs6000_gimple_fold_builtin): Ditto.
 534         (rs6000_generate_float2_double_code, rs6000_generate_float2_code):
 535         Adjust.
 536         * config/rs6000/rs6000.h (VECTOR_ELT_ORDER_BIG): Delete.
 537         (TARGET_DIRECT_MOVE_64BIT): Adjust.
 538         * config/rs6000/rs6000.md (split for extendsidi2 for vectors): Adjust.
 539         * config/rs6000/rs6000.opt (maltivec=le, maltivec=be): Delete.
 540         * config/rs6000/vsx.md (floate<mode>, unsfloatev2di, floato<mode>,
 541         unsfloatov2di, vsignedo_v2df, vsignede_v2df, vunsignedo_v2df,
 542         vunsignede_v2df, vsx_extract_<mode>_p9, *vsx_extract_si,
 543         *vsx_extract_<mode>_p8, *vsx_extract_si_<uns>float_df,
 544         *vsx_extract_si_<uns>float_<mode>, vsx_set_<mode>_p9, vsx_set_v4sf_p9,
 545         *vsx_insert_extract_v4sf_p9, *vsx_insert_extract_v4sf_p9_2, and an
 546         anonymous split): Adjust.
 547         (vsx_mergel_<mode>, vsx_mergeh_<mode>): Remove -maltivec=be support.
 548         (vsx_xxspltd_<mode>, extract4b, insert4b): Adjust.
 549
 550 2018-05-10  Eric Botcazou  <ebotcazou@adacore.com>
 551
 552         * configure.ac (gcc_gxx_include_dir_add_sysroot): Set it to 1 only
 553         when --with-gxx-include-dir is also specified.
 554         * configure: Regenerate.
 555
 556 2018-05-09  Jim Wilson  <jimw@sifive.com>
 557
 558         PR target/84797
 559         * config.gcc (riscv*-*-*): Handle --with-multilib-list.
 560         * config/riscv/t-withmultilib: New.
 561         * config/riscv/withmultilib.h: New.
 562         * doc/install.texi: Document RISC-V --with-multilib-list support.
 563
 564 2018-05-09  Richard Biener  <rguenther@suse.de>
 565
 566         * tree-vect-slp.c (vect_bb_slp_scalar_cost): Fill a cost
 567         vector.
 568         (vect_bb_vectorization_profitable_p): Adjust.  Compute
 569         actual scalar cost using the cost vector and the add_stmt_cost
 570         machinery.
 571
 572 2018-05-09  Segher Boessenkool  <segher@kernel.crashing.org>
 573
 574         PR rtl-optimization/85645
 575         * config/rs6000/rs6000.c (rs6000_emit_prologue_components): Put a SET
 576         in the REG_CFA_REGISTER note for LR, don't leave it empty.
 577
 578 2018-05-09  Segher Boessenkool  <segher@kernel.crashing.org>
 579
 580         PR rtl-optimization/85645
 581         * shrink-wrap.c (spread_components): Return a boolean saying if
 582         anything was changed.
 583         (try_shrink_wrapping_separate): Iterate spread_components until
 584         nothing changes anymore.
 585
 586 2018-05-09  Segher Boessenkool  <segher@kernel.crashing.org>
 587
 588         PR rtl-optimization/85645
 589         * regrename.c (build_def_use): Also kill the chains that include the
 590         destination of a REG_CFA_REGISTER note.
 591
 592 2018-05-09  Segher Boessenkool  <segher@kernel.crashing.org>
 593
 594         PR rtl-optimization/85645
 595         *  regcprop.c (copyprop_hardreg_forward_1): Don't propagate into an
 596         insn that has a REG_CFA_REGISTER note.
 597
 598 2018-05-09  Richard Sandiford  <richard.sandiford@linaro.org>
 599
 600         * cfgexpand.c (expand_clobber): New function.
 601         (expand_gimple_stmt_1): Use it.
 602         * tree-vect-stmts.c (vect_clobber_variable): New function,
 603         split out from...
 604         (vectorizable_simd_clone_call): ...here.
 605         (vectorizable_store): Emit a clobber either side of an
 606         IFN_STORE_LANES sequence.
 607         (vectorizable_load): Emit a clobber after an IFN_LOAD_LANES sequence.
 608
 609 2018-05-09  Tom de Vries  <tom@codesourcery.com>
 610
 611         PR target/85626
 612         * config/nvptx/nvptx.md (define_insn "trap", define_insn "trap_if_true")
 613         (define_insn "trap_if_false"): Add exit after trap.
 614
 615 2018-05-09  Eric Botcazou  <ebotcazou@adacore.com>
 616
 617         PR rtl-optimization/85638
 618         * bb-reorder.c: Include common/common-target.h.
 619         (create_forwarder_block): New function extracted from...
 620         (fix_up_crossing_landing_pad): ...here.  Rename into...
 621         (dw2_fix_up_crossing_landing_pad): ...this.
 622         (sjlj_fix_up_crossing_landing_pad): New function.
 623         (find_rarely_executed_basic_blocks_and_crossing_edges): In SJLJ mode,
 624         call sjlj_fix_up_crossing_landing_pad if there are incoming EH edges
 625         from both partitions and exit the loop after one iteration.
 626
 627 2018-05-08  Kelvin Nilsen  <kelvin@gcc.gnu.org>
 628
 629         Revert:
 630         * doc/extend.texi (PowerPC Built-in Functions): Rename this
 631         subsection.
 632         (Basic PowerPC Built-in Functions): The new name of the
 633         subsection previously known as "PowerPC Built-in Functions".
 634         (Basic PowerPC Built-in Functions Available on all Configurations):
 635         New subsubsection.
 636         (Basic PowerPC Built-in Functions Available on ISA 2.05): New
 637         subsubsection.
 638         (Basic PowerPC Built-in Functions Available on ISA 2.06): New
 639         subsubsection.
 640         (Basic PowerPC Built-in Functions Available on ISA 2.07): New
 641         subsubsection.
 642         (Basic PowerPC Built-in Functions Available on ISA 3.0): New
 643         subsubsection.
 644
 645 2018-05-08  Jim Wilson  <jimw@sifive.com>
 646
 647         * config/riscv/linux.h (MUSL_ABI_SUFFIX): Delete unnecessary backslash.
 648         (LD_EMUL_SUFFIX): New.
 649         (LINK_SPEC): Use it.
 650
 651 2018-05-08  Kelvin Nilsen  <kelvin@gcc.gnu.org>
 652
 653         * doc/extend.texi (PowerPC Built-in Functions): Rename this
 654         subsection.
 655         (Basic PowerPC Built-in Functions): The new name of the
 656         subsection previously known as "PowerPC Built-in Functions".
 657         (Basic PowerPC Built-in Functions Available on all Configurations):
 658         New subsubsection.
 659         (Basic PowerPC Built-in Functions Available on ISA 2.05): New
 660         subsubsection.
 661         (Basic PowerPC Built-in Functions Available on ISA 2.06): New
 662         subsubsection.
 663         (Basic PowerPC Built-in Functions Available on ISA 2.07): New
 664         subsubsection.
 665         (Basic PowerPC Built-in Functions Available on ISA 3.0): New
 666         subsubsection.
 667
 668 2018-05-08  Jakub Jelinek  <jakub@redhat.com>
 669
 670         PR target/85683
 671         * config/i386/i386.md: Add peepholes for mem {+,-,&,|,^}= x; mem != 0
 672         after cmpelim optimization.
 673
 674 2018-05-08  Olga Makhotina  <olga.makhotina@intel.com>
 675
 676         * config.gcc: Support "goldmont".
 677         * config/i386/driver-i386.c (host_detect_local_cpu): Detect "goldmont".
 678         * config/i386/i386-c.c (ix86_target_macros_internal): Handle
 679         PROCESSOR_GOLDMONT.
 680         * config/i386/i386.c (m_GOLDMONT): Define.
 681         (processor_target_table): Add "goldmont".
 682         (PTA_GOLDMONT): Define.
 683         (ix86_lea_outperforms): Add TARGET_GOLDMONT.
 684         (get_builtin_code_for_version): Handle PROCESSOR_GOLDMONT.
 685         (fold_builtin_cpu): Add M_INTEL_GOLDMONT.
 686         (fold_builtin_cpu): Add "goldmont".
 687         (ix86_add_stmt_cost): Add TARGET_GOLDMONT.
 688         (ix86_option_override_internal): Add "goldmont".
 689         * config/i386/i386.h (processor_costs): Define TARGET_GOLDMONT.
 690         (processor_type): Add PROCESSOR_GOLDMONT.
 691         * config/i386/i386.md: Add CPU "glm".
 692         * config/i386/glm.md: New file.
 693         * config/i386/x86-tune.def: Add m_GOLDMONT.
 694         * doc/invoke.texi: Add goldmont as x86 -march=/-mtune= CPU type.
 695
 696 2018-05-08  Jakub Jelinek  <jakub@redhat.com>
 697
 698         PR target/85572
 699         * config/i386/i386.c (ix86_expand_sse2_abs): Handle E_V2DImode and
 700         E_V4DImode.
 701         * config/i386/sse.md (abs<mode>2): Use VI_AVX2 iterator instead of
 702         VI1248_AVX512VL_AVX512BW.  Handle V2DImode and V4DImode if not
 703         TARGET_AVX512VL using ix86_expand_sse2_abs.  Formatting fixes.
 704
 705         PR target/85317
 706         * config/i386/i386.c (ix86_fold_builtin): Handle
 707         IX86_BUILTIN_{,P}MOVMSK{PS,PD,B}{,128,256}.
 708
 709         PR target/85480
 710         * config/i386/sse.md (ssequaterinsnmode): New mode attribute.
 711         (*<extract_type>_vinsert<shuffletype><extract_suf>_0): New pattern.
 712
 713 2018-05-08  Richard Earnshaw  <rearnsha@arm.com>
 714
 715         PR target/85658
 716         * config/arm/parsecpu.awk (check_cpu): Fix operator precedence.
 717         (check_arch): Likewise.
 718         (check_fpu): Return the result rather than printing it.
 719         (end arch): Fix operator precedence.
 720         (end cpu): Likewise.
 721         (END): Print the result from check_fpu.
 722
 723 2018-05-08  Richard Sandiford  <richard.sandiford@linaro.org>
 724             Alan Hayward  <alan.hayward@arm.com>
 725             David Sherwood  <david.sherwood@arm.com>
 726
 727         * config/aarch64/aarch64-sve.md (*pred_cmp<cmp_op><mode>_combine)
 728         (*pred_cmp<cmp_op><mode>, *fcm<cmp_op><mode>_and_combine)
 729         (*fcmuo<mode>_and_combine, *fcm<cmp_op><mode>_and)
 730         (*fcmuo<mode>_and): New patterns.
 731
 732 2018-05-08  Richard Sandiford  <richard.sandiford@linaro.org>
 733
 734         * config/aarch64/iterators.md (UNSPEC_COND_LO, UNSPEC_COND_LS)
 735         (UNSPEC_COND_HI, UNSPEC_COND_HS, UNSPEC_COND_UO): Delete.
 736         (SVE_INT_CMP, SVE_FP_CMP): New code iterators.
 737         (cmp_op, sve_imm_con): New code attributes.
 738         (SVE_COND_INT_CMP, imm_con): Delete.
 739         (cmp_op): Remove above unspecs from int attribute.
 740         * config/aarch64/aarch64-sve.md (*vec_cmp<cmp_op>_<mode>): Rename
 741         to...
 742         (*cmp<cmp_op><mode>): ...this.  Use UNSPEC_MERGE_PTRUE instead of
 743         comparison-specific unspecs.
 744         (*vec_cmp<cmp_op>_<mode>_ptest): Rename to...
 745         (*cmp<cmp_op><mode>_ptest): ...this and adjust likewise.
 746         (*vec_cmp<cmp_op>_<mode>_cc): Rename to...
 747         (*cmp<cmp_op><mode>_cc): ...this and adjust likewise.
 748         (*vec_fcm<cmp_op><mode>): Rename to...
 749         (*fcm<cmp_op><mode>): ...this and adjust likewise.
 750         (*vec_fcmuo<mode>): Rename to...
 751         (*fcmuo<mode>): ...this and adjust likewise.
 752         (*pred_fcm<cmp_op><mode>): New pattern.
 753         * config/aarch64/aarch64.c (aarch64_emit_unop, aarch64_emit_binop)
 754         (aarch64_emit_sve_ptrue_op, aarch64_emit_sve_ptrue_op_cc): New
 755         functions.
 756         (aarch64_unspec_cond_code): Remove handling of LTU, GTU, LEU, GEU
 757         and UNORDERED.
 758         (aarch64_gen_unspec_cond, aarch64_emit_unspec_cond): Delete.
 759         (aarch64_emit_sve_predicated_cond): New function.
 760         (aarch64_expand_sve_vec_cmp_int): Use aarch64_emit_sve_ptrue_op_cc.
 761         (aarch64_emit_unspec_cond_or): Replace with...
 762         (aarch64_emit_sve_or_conds): ...this new function.  Use
 763         aarch64_emit_sve_ptrue_op for the individual comparisons and
 764         aarch64_emit_binop to OR them together.
 765         (aarch64_emit_inverted_unspec_cond): Replace with...
 766         (aarch64_emit_sve_inverted_cond): ...this new function.  Use
 767         aarch64_emit_sve_ptrue_op for the comparison and
 768         aarch64_emit_unop to invert the result.
 769         (aarch64_expand_sve_vec_cmp_float): Update after the above
 770         changes.  Use aarch64_emit_sve_ptrue_op for native comparisons.
 771
 772 2018-05-07  Nathan Sidwell  <nathan@acm.org>
 773
 774         * doc/invoke.texi (C++ Dialect Options): Remove -ffor-scope.
 775         * doc/extend.texi (Deprecated Features): Remove -fno-for-scope
 776         (Backwards Compatibility): Likewise.
 777
 778 2018-05-07  Luis Machado  <luis.machado@linaro.org>
 779
 780         PR bootstrap/85681
 781         Revert:
 782         2018-05-07  Luis Machado  <luis.machado@linaro.org>
 783
 784         * config/aarch64/aarch64-protos.h (cpu_prefetch_tune)
 785         <prefetch_dynamic_strides>: New const bool field.
 786         * config/aarch64/aarch64.c (generic_prefetch_tune): Update to include
 787         prefetch_dynamic_strides.
 788         (exynosm1_prefetch_tune): Likewise.
 789         (thunderxt88_prefetch_tune): Likewise.
 790         (thunderx_prefetch_tune): Likewise.
 791         (thunderx2t99_prefetch_tune): Likewise.
 792         (qdf24xx_prefetch_tune): Likewise. Set prefetch_dynamic_strides to false.
 793         (aarch64_override_options_internal): Update to set
 794         PARAM_PREFETCH_DYNAMIC_STRIDES.
 795         * doc/invoke.texi (prefetch-dynamic-strides): Document new option.
 796         * params.def (PARAM_PREFETCH_DYNAMIC_STRIDES): New.
 797         * params.h (PARAM_PREFETCH_DYNAMIC_STRIDES): Define.
 798         * tree-ssa-loop-prefetch.c (should_issue_prefetch_p): Account for
 799         prefetch-dynamic-strides setting.
 800
 801         2018-05-07  Luis Machado  <luis.machado@linaro.org>
 802
 803         * config/aarch64/aarch64-protos.h (cpu_prefetch_tune)
 804         <minimum_stride>: New const int field.
 805         * config/aarch64/aarch64.c (generic_prefetch_tune): Update to include
 806         minimum_stride field.
 807         (exynosm1_prefetch_tune): Likewise.
 808         (thunderxt88_prefetch_tune): Likewise.
 809         (thunderx_prefetch_tune): Likewise.
 810         (thunderx2t99_prefetch_tune): Likewise.
 811         (qdf24xx_prefetch_tune): Likewise. Set minimum_stride to 2048.
 812         (aarch64_override_options_internal): Update to set
 813         PARAM_PREFETCH_MINIMUM_STRIDE.
 814         * doc/invoke.texi (prefetch-minimum-stride): Document new option.
 815         * params.def (PARAM_PREFETCH_MINIMUM_STRIDE): New.
 816         * params.h (PARAM_PREFETCH_MINIMUM_STRIDE): Define.
 817         * tree-ssa-loop-prefetch.c (should_issue_prefetch_p): Return false if
 818         stride is constant and is below the minimum stride threshold.
 819
 820 2018-05-07  Luis Machado  <luis.machado@linaro.org>
 821
 822         * config/aarch64/aarch64.c (qdf24xx_prefetch_tune) <l2_cache_size>: Set
 823         to 512.
 824
 825 2018-05-07  Luis Machado  <luis.machado@linaro.org>
 826
 827         * config/aarch64/aarch64-protos.h (cpu_prefetch_tune)
 828         <prefetch_dynamic_strides>: New const bool field.
 829         * config/aarch64/aarch64.c (generic_prefetch_tune): Update to include
 830         prefetch_dynamic_strides.
 831         (exynosm1_prefetch_tune): Likewise.
 832         (thunderxt88_prefetch_tune): Likewise.
 833         (thunderx_prefetch_tune): Likewise.
 834         (thunderx2t99_prefetch_tune): Likewise.
 835         (qdf24xx_prefetch_tune): Likewise. Set prefetch_dynamic_strides to false.
 836         (aarch64_override_options_internal): Update to set
 837         PARAM_PREFETCH_DYNAMIC_STRIDES.
 838         * doc/invoke.texi (prefetch-dynamic-strides): Document new option.
 839         * params.def (PARAM_PREFETCH_DYNAMIC_STRIDES): New.
 840         * params.h (PARAM_PREFETCH_DYNAMIC_STRIDES): Define.
 841         * tree-ssa-loop-prefetch.c (should_issue_prefetch_p): Account for
 842         prefetch-dynamic-strides setting.
 843
 844 2018-05-07  Luis Machado  <luis.machado@linaro.org>
 845
 846         * config/aarch64/aarch64-protos.h (cpu_prefetch_tune)
 847         <minimum_stride>: New const int field.
 848         * config/aarch64/aarch64.c (generic_prefetch_tune): Update to include
 849         minimum_stride field.
 850         (exynosm1_prefetch_tune): Likewise.
 851         (thunderxt88_prefetch_tune): Likewise.
 852         (thunderx_prefetch_tune): Likewise.
 853         (thunderx2t99_prefetch_tune): Likewise.
 854         (qdf24xx_prefetch_tune): Likewise. Set minimum_stride to 2048.
 855         (aarch64_override_options_internal): Update to set
 856         PARAM_PREFETCH_MINIMUM_STRIDE.
 857         * doc/invoke.texi (prefetch-minimum-stride): Document new option.
 858         * params.def (PARAM_PREFETCH_MINIMUM_STRIDE): New.
 859         * params.h (PARAM_PREFETCH_MINIMUM_STRIDE): Define.
 860         * tree-ssa-loop-prefetch.c (should_issue_prefetch_p): Return false if
 861         stride is constant and is below the minimum stride threshold.
 862
 863 2018-05-06  Jakub Jelinek  <jakub@redhat.com>
 864
 865         PR c++/85659
 866         * cfgexpand.c (expand_asm_stmt): Don't create a temporary if
 867         the type is addressable.  Don't force op into register if it has
 868         BLKmode.
 869
 870 2018-05-05  Roland McGrath  <mcgrathr@google.com>
 871
 872         PR other/77609
 873         * varasm.c (default_section_type_flags): Set SECTION_NOTYPE for
 874         any section for which we don't know a specific type it should have,
 875         regardless of name.  Previously this was done only for the exact
 876         names ".init_array", ".fini_array", and ".preinit_array".
 877         (default_elf_asm_named_section): Add comment about
 878         relationship with default_section_type_flags and SECTION_NOTYPE.
 879         (get_section): Don't consider it a type conflict if one side has
 880         SECTION_NOTYPE and the other doesn't, as long as neither has the
 881         SECTION_BSS et al used in the default_section_type_flags logic.
 882
 883 2018-05-05  Tom de Vries  <tom@codesourcery.com>
 884
 885         PR target/85653
 886         * config/nvptx/nvptx.c (WORKAROUND_PTXJIT_BUG_3): Define.
 887         (workaround_barsyncs): New function.
 888         (nvptx_reorg): Use workaround_barsyncs.
 889         * config/nvptx/nvptx.md (define_c_enum "unspecv"): Add UNSPECV_MEMBAR.
 890         (define_expand "nvptx_membar_cta"): New define_expand.
 891         (define_insn "*nvptx_membar_cta"): New insn.
 892
 893 2018-05-04  Pekka Jääskeläinen  <pekka.jaaskelainen@parmance.com>
 894
 895         * brig-builtins.def: Add consts to ptrs etc. in BRIG builtin defs.
 896         To improve optimization opportunities.
 897         * builtin-types.def: The new needed builtin types for the above.
 898
 899 2018-05-04  Richard Biener  <rguenther@suse.de>
 900
 901         * bb-reorder.c (sanitize_hot_paths): Release hot_bbs_to_check.
 902         * gimple-ssa-store-merging.c
 903         (imm_store_chain_info::output_merged_store): Remove redundant create,
 904         release split_store vector contents on failure.
 905         * tree-vect-slp.c (vect_schedule_slp_instance): Avoid leaking
 906         scalar stmt vector on cache hit.
 907
 908 2018-05-04  Segher Boessenkool  <segher@kernel.crashing.org>
 909
 910         * common/config/rs6000/rs6000-common.c (rs6000_handle_option): Remove
 911         Xilinx FP support.
 912         * config.gcc (powerpc-xilinx-eabi*): Remove.
 913         * config/rs6000/predicates.md (easy_fp_constant): Remove Xilinx FP
 914         support.
 915         (fusion_addis_mem_combo_load): Ditto.
 916         * config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Remove Xilinx
 917         FP support.
 918         (rs6000_cpu_cpp_builtins): Ditto.
 919         * config/rs6000/rs6000-linux.c
 920         (rs6000_linux_float_exceptions_rounding_supported_p): Ditto.
 921         * config/rs6000/rs6000-opts.h (enum fpu_type_t): Delete.
 922         * config/rs6000/rs6000.c (rs6000_debug_reg_global): Remove Xilinx FP
 923         support.
 924         (rs6000_setup_reg_addr_masks): Ditto.
 925         (rs6000_init_hard_regno_mode_ok): Ditto.
 926         (rs6000_option_override_internal): Ditto.
 927         (legitimate_lo_sum_address_p): Ditto.
 928         (rs6000_legitimize_address): Ditto.
 929         (rs6000_legitimize_reload_address): Ditto.
 930         (rs6000_legitimate_address_p): Ditto.
 931         (abi_v4_pass_in_fpr): Ditto.
 932         (setup_incoming_varargs): Ditto.
 933         (rs6000_gimplify_va_arg): Ditto.
 934         (rs6000_split_multireg_move): Ditto.
 935         (rs6000_savres_strategy): Ditto.
 936         (rs6000_emit_prologue_components): Ditto.
 937         (rs6000_emit_epilogue_components): Ditto.
 938         (rs6000_emit_prologue): Ditto.
 939         (rs6000_emit_epilogue): Ditto.
 940         (rs6000_elf_file_end): Ditto.
 941         (rs6000_function_value): Ditto.
 942         (rs6000_libcall_value): Ditto.
 943         * config/rs6000/rs6000.h: Ditto.
 944         (TARGET_MINMAX_SF, TARGET_MINMAX_DF): Delete, merge to ...
 945         (TARGET_MINMAX): ... this.  New.
 946         (TARGET_SF_FPR, TARGET_DF_FPR, TARGET_SF_INSN, TARGET_DF_INSN): Delete.
 947         * config/rs6000/rs6000.md: Remove Xilinx FP support.
 948         (*movsi_internal1_single): Delete.
 949         * config/rs6000/rs6000.opt (msingle-float, mdouble-float, msimple-fpu,
 950         mfpu=, mxilinx-fpu): Delete.
 951         * config/rs6000/singlefp.h: Delete.
 952         * config/rs6000/sysv4.h: Remove Xilinx FP support.
 953         * config/rs6000/t-rs6000: Ditto.
 954         * config/rs6000/t-xilinx: Delete.
 955         * gcc/config/rs6000/titan.md: Adjust for fp_type removal.
 956         * gcc/config/rs6000/vsx.md: Remove Xilinx FP support.
 957         (VStype_simple): Delete.
 958         (VSfptype_simple, VSfptype_mul, VSfptype_div, VSfptype_sqrt): Delete.
 959         * config/rs6000/xfpu.h: Delete.
 960         * config/rs6000/xfpu.md: Delete.
 961         * config/rs6000/xilinx.h: Delete.
 962         * config/rs6000/xilinx.opt: Delete.
 963         * gcc/doc/invoke.texi (RS/6000 and PowerPC Options): Remove
 964         -msingle-float, -mdouble-float, -msimple-fpu, -mfpu=, and -mxilinx-fpu.
 965
 966 2018-05-04  Tom de Vries  <tom@codesourcery.com>
 967
 968         PR libgomp/85639
 969         * builtins.c (expand_builtin_goacc_parlevel_id_size): Handle null target
 970         if ignore == 0.
 971
 972 2018-05-04  Richard Biener  <rguenther@suse.de>
 973
 974         PR middle-end/85627
 975         * tree-complex.c (update_complex_assignment): We are always in SSA form.
 976         (expand_complex_div_wide): Likewise.
 977         (expand_complex_operations_1): Likewise.
 978         (expand_complex_libcall): Preserve EH info of the original stmt.
 979         (tree_lower_complex): Handle removed blocks.
 980         * tree.c (build_common_builtin_nodes): Do not set ECF_NOTRHOW
 981         on complex multiplication and division libcall builtins.
 982
 983 2018-05-04  Richard Biener  <rguenther@suse.de>
 984
 985         PR middle-end/85574
 986         * fold-const.c (negate_expr_p): Restrict negation of operand
 987         zero of a division to when we know that can happen without
 988         overflow.
 989         (fold_negate_expr_1): Likewise.
 990
 991 2018-05-04  Jakub Jelinek  <jakub@redhat.com>
 992
 993         PR libstdc++/85466
 994         * real.h (real_nextafter): Declare.
 995         * real.c (real_nextafter): New function.
 996         * fold-const-call.c (fold_const_nextafter): New function.
 997         (fold_const_call_sss): Call it for CASE_CFN_NEXTAFTER and
 998         CASE_CFN_NEXTTOWARD.
 999         (fold_const_call_1): For CASE_CFN_NEXTTOWARD call fold_const_call_sss
1000         even when arg1_mode is different from arg0_mode.
1001
1002 2018-05-03  Nathan Sidwell  <nathan@acm.org>
1003
1004         * doc/extend.texi (Deprecated Features): Remove
1005         -ffriend-injection.
1006         (Backwards Compatibility): Likewise.
1007         * doc/invoke.texi (C++ Language Options): Likewise.
1008         (C++ Dialect Options): Likewise.
1009
1010 2018-05-03  Jakub Jelinek  <jakub@redhat.com>
1011
1012         PR target/85530
1013         * config/i386/avx512fintrin.h (_mm512_mullox_epi64,
1014         _mm512_mask_mullox_epi64): New intrinsics.
1015
1016 2018-05-03  Tom de Vries  <tom@codesourcery.com>
1017
1018         PR testsuite/85106
1019         * doc/sourcebuild.texi (Commands for use in dg-final, Scan optimization
1020         dump files): Add offload-tree.
1021
1022 2018-05-03  Richard Biener  <rguenther@suse.de>
1023
1024         PR tree-optimization/85615
1025         * tree-ssa-threadupdate.c (thread_block_1): Only allow exits
1026         to loops not nested in BBs loop father to avoid creating multi-entry
1027         loops.
1028
1029 2018-05-03  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1030
1031         PR tree-optimization/70291
1032         * tree-complex.c (expand_complex_libcall): Add type, inplace_p
1033         arguments.  Change return type to tree.  Emit libcall as a new
1034         statement rather than replacing existing one when inplace_p is true.
1035         (expand_complex_multiplication_components): New function.
1036         (expand_complex_multiplication): Expand floating-point complex
1037         multiplication using the above.
1038         (expand_complex_division): Rename inner_type parameter to type.
1039         Update expand_complex_libcall call-site.
1040         (expand_complex_operations_1): Update expand_complex_multiplication
1041         and expand_complex_division call-sites.
1042
1043 2018-05-02  Jakub Jelinek  <jakub@redhat.com>
1044
1045         PR target/85582
1046         * config/i386/i386.md (*ashl<dwi>3_doubleword_mask,
1047         *ashl<dwi>3_doubleword_mask_1, *<shift_insn><dwi>3_doubleword_mask,
1048         *<shift_insn><dwi>3_doubleword_mask_1): In condition require that
1049         the highest significant bit of the shift count mask is clear.  In
1050         check whether and[sq]i3 is needed verify that all significant bits
1051         of the shift count other than the highest are set.
1052
1053 2018-05-02  Tom de Vries  <tom@codesourcery.com>
1054
1055         PR libgomp/82428
1056         * builtins.def (DEF_GOACC_BUILTIN_ONLY): Define.
1057         * omp-builtins.def (BUILT_IN_GOACC_PARLEVEL_ID)
1058         (BUILT_IN_GOACC_PARLEVEL_SIZE): New builtin.
1059         * builtins.c (expand_builtin_goacc_parlevel_id_size): New function.
1060         (expand_builtin): Call expand_builtin_goacc_parlevel_id_size.
1061         * doc/extend.texi (Other Builtins): Add __builtin_goacc_parlevel_id and
1062         __builtin_goacc_parlevel_size.
1063
1064 2018-05-02  Richard Biener  <rguenther@suse.de>
1065
1066         PR tree-optimization/85597
1067         * tree-vect-stmts.c (vectorizable_operation): For ternary SLP
1068         do not use split vect_get_vec_defs call but call vect_get_slp_defs
1069         directly.
1070
1071 2018-05-02  Tom de Vries  <tom@codesourcery.com>
1072
1073         PR testsuite/85106
1074         * doc/sourcebuild.texi (Commands for use in dg-final, Scan optimization
1075         dump files): Add ltrans-tree.
1076
1077 2018-05-02  Tom de Vries  <tom@codesourcery.com>
1078
1079         PR testsuite/85106
1080         * doc/sourcebuild.texi (Commands for use in dg-final, Scan optimization
1081         dump files): Add wpa-ipa.
1082
1083 2018-05-02  Segher Boessenkool  <segher@kernel.crashing.org>
1084
1085         * config.gcc (powerpc*-*-*): Remove paired.h.  Unsupport the
1086         powerpc*-*-linux*paired* target.
1087         * config/rs6000/750cl.h: Delete.
1088         * config/rs6000/paired.h: Delete.
1089         * config/rs6000/paired.md: Delete.
1090         * config/rs6000/predicates.md (easy_vector_constant): Remove paired
1091         float support.
1092         * config/rs6000/rs6000-builtin.def: Remove paired float support.
1093         * config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Update
1094         comment.  Remove paired float support.
1095         * config/rs6000/rs6000-modes.def: Remove V2SF and V2SI.
1096         * config/rs6000/rs6000-opts.h (enum rs6000_vector): Delete
1097         VECTOR_PAIRED.
1098         * config/rs6000/rs6000-protos.h (paired_expand_vector_init,
1099         paired_emit_vector_cond_expr, paired_expand_vector_move): Delete
1100         declarations.
1101         * config/rs6000/rs6000.c: Remove paired float support.
1102         (paired_expand_vector_init, paired_expand_vector_move,
1103         paired_emit_vector_compare, paired_emit_vector_cond_expr,
1104         (paired_expand_lv_builtin, paired_expand_stv_builtin,
1105         paired_expand_builtin, paired_expand_predicate_builtin,
1106         paired_init_builtins): Delete.
1107         * config/rs6000/rs6000.h: Remove paired float support.
1108         * config/rs6000/rs6000.md: Remove paired float support.
1109         (move_from_CR_ov_bit): Delete.
1110         * config/rs6000/rs6000.opt (mpaired): Delete.
1111         * config/rs6000/t-rs6000: Remove paired.md from MD_INCLUDES.
1112         * doc/invoke.texi (RS/6000 and PowerPC Options): Delete -mpaired.
1113
1114 2018-05-02  Richard Biener  <rguenther@suse.de>
1115
1116         PR middle-end/85567
1117         * gimplify.c (gimplify_save_expr): When in SSA form allow
1118         SAVE_EXPRs to compute to SSA vars.
1119
1120 2018-05-02  Jakub Jelinek  <jakub@redhat.com>
1121
1122         PR target/85582
1123         * config/i386/i386.md (*ashl<dwi>3_doubleword_mask,
1124         *ashl<dwi>3_doubleword_mask_1, *<shift_insn><dwi>3_doubleword_mask,
1125         *<shift_insn><dwi>3_doubleword_mask_1): If and[sq]i3 is needed, don't
1126         clobber operands[2], instead use a new pseudo.  Formatting fixes.
1127
1128 2018-05-02  Richard Sandiford  <richard.sandiford@linaro.org>
1129
1130         PR tree-optimization/85586
1131         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence): Only
1132         exit early for statements in the same group if the accesses are
1133         not strided.
1134
1135 2018-05-02  Tom de Vries  <tom@codesourcery.com>
1136
1137         PR lto/85451
1138         * lto-wrapper.c (compile_offload_image): Add "could not find mkoffload"
1139         error message.
1140
1141 2018-05-01  Marc Glisse  <marc.glisse@inria.fr>
1142
1143         PR tree-optimization/85143
1144         * match.pd (A<B&A<C): Extend to BIT_IOR_EXPR.
1145
1146 2018-05-01  Tom de Vries  <tom@codesourcery.com>
1147
1148         PR lto/85451
1149         * config/nvptx/mkoffload.c (main): Suggest using -B in "offload compiler
1150         not found" error message.
1151
1152 2018-05-01  Tom de Vries  <tom@codesourcery.com>
1153
1154         PR other/83786
1155         * vec.h (VEC_ORDERED_REMOVE_IF, VEC_ORDERED_REMOVE_IF_FROM_TO): Define.
1156         * vec.c (test_ordered_remove_if): New function.
1157         (vec_c_tests): Call test_ordered_remove_if.
1158         * dwarf2cfi.c (connect_traces): Use VEC_ORDERED_REMOVE_IF_FROM_TO.
1159         * lto-streamer-out.c (prune_offload_funcs): Use VEC_ORDERED_REMOVE_IF.
1160         * tree-vect-patterns.c (vect_pattern_recog_1): Use
1161         VEC_ORDERED_REMOVE_IF.
1162
1163 2018-05-01  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
1164
1165         PR tree-optimization/82665
1166         * vr-values.c (vr_values::extract_range_from_binary_expr): Handle
1167         pointer subtraction where arguments come from a memchr call.
1168
1169 2018-05-01  Jakub Jelinek  <jakub@redhat.com>
1170
1171         * configure.ac (LD_AS_NEEDED_OPTION, LD_NO_AS_NEEDED_OPTION): Use
1172         --push-state --as-needed and --pop-state instead of --as-needed and
1173         --no-as-needed if ld supports it.
1174         * configure: Regenerated.
1175
1176         PR web/85578
1177         * doc/install.texi2html: Replace _002d with - and _002a with * in
1178         generated html files using sed.
1179
1180 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
1181
1182         PR c++/85523
1183         * gcc-rich-location.c (blank_line_before_p): New function.
1184         (use_new_line): New function.
1185         (gcc_rich_location::add_fixit_insert_formatted): New function.
1186         * gcc-rich-location.h
1187         (gcc_rich_location::add_fixit_insert_formatted): New function.
1188
1189 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
1190
1191         * selftest.c (assert_streq): Rename "expected" and "actual" to
1192         "val1" and "val2".  Extend NULL-handling to cover both inputs
1193         symmetrically, while still requiring both to be non-NULL for a pass.
1194         * selftest.h (assert_streq): Rename "expected" and "actual" to
1195         "val1" and "val2".
1196         (ASSERT_EQ): Likewise.
1197         (ASSERT_EQ_AT): Likewise.
1198         (ASSERT_KNOWN_EQ): Likewise.
1199         (ASSERT_KNOWN_EQ_AT): Likewise.
1200         (ASSERT_NE): Likewise.
1201         (ASSERT_MAYBE_NE): Likewise.
1202         (ASSERT_MAYBE_NE_AT): Likewise.
1203         (ASSERT_STREQ): Likewise.  Clarify that both must be non-NULL for
1204         the assertion to pass.
1205         (ASSERT_STREQ_AT): Likewise.
1206
1207 2018-04-30  Jonathan Wakely  <jwakely@redhat.com>
1208
1209         * doc/invoke.texi (-fpie, -fPIE): Fix grammar and clarify
1210         interaction with -pie.
1211
1212 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
1213
1214         * selftest.h: Fix alphabetization of per-source-file selftest
1215         declarations.
1216
1217 2018-04-30  Jason Merrill  <jason@redhat.com>
1218
1219         PR c++/61982 - dead stores to destroyed objects.
1220         * gimplify.c (gimplify_modify_expr): Simplify complex lvalue on LHS
1221         of clobber.
1222
1223 2018-04-30  Jason Merrill  <jason@redhat.com>
1224
1225         * tree.c (build_clobber): New.
1226         * tree.h: Declare it.
1227         * gimplify.c (gimplify_bind_expr, gimplify_target_expr): Use it.
1228
1229 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
1230
1231         * diagnostic-show-locus.c (layout::layout): Update for
1232         location_get_source_line returning a char_span.
1233         (struct char_span): Move to input.h.
1234         (struct correction): Update for fields in char_span becoming
1235         private.
1236         (struct source_line): Update for location_get_source_line
1237         returning a char_span.
1238         (layout::print_line): Likewise.
1239         * edit-context.c (edited_file::print_content): Likewise.
1240         (edited_file::print_diff_hunk): Likewise.
1241         (edited_file::print_run_of_changed_lines): Likewise.
1242         (edited_file::get_num_lines): Likewise.
1243         (edited_line::edited_line): Likewise.
1244         * final.c (asm_show_source): Likewise.
1245         * input.c (location_get_source_line): Convert return type
1246         from const char * to char_span, losing the final "line_len"
1247         param.
1248         (dump_location_info): Update for the above.
1249         (get_substring_ranges_for_loc): Likewise.  Use a char_span
1250         when handling the literal within the line.
1251         (test_reading_source_line): Update for location_get_source_line
1252         returning a char_span.
1253         * input.h (class char_span): Move here from
1254         diagnostic-show-locus.c, converting from a struct to a class.
1255         Make data members private.
1256         (char_span::operator bool): New.
1257         (char_span::length): New.
1258         (char_span::get_buffer): New.
1259         (char_span::operator[]): New.
1260         (char_span::subspan): Make const.
1261         (char_span::xstrdup): New.
1262         (location_get_source_line): Convert return type from const char *
1263         to char_span, losing the final "line_size" param.
1264
1265 2018-04-30  Jan Hubicka  <jh@suse.cz>
1266
1267         * lto-wrapper.c (ltrans_priorities): New static var.
1268         (cmp_priority): New.
1269         (run_gcc): Read priorities and if doing parallel build order
1270         the Makefile by them.
1271
1272 2018-04-30  David Malcolm  <dmalcolm@redhat.com>
1273
1274         * input.h (builtins_location_check): Convert to a STATIC_ASSERT.
1275
1276 2018-04-30  Richard Biener  <rguenther@suse.de>
1277
1278         * tree-cfg.c (verify_address): Remove base argument, add
1279         flag whether to check TREE_ADDRESSABLE and do that.
1280         (verify_expr): Remove.
1281         (verify_types_in_gimple_reference): Add pieces from verify_expr.
1282         (verify_gimple_assign_single): Likewise.
1283         (verify_gimple_switch): Likewise.
1284         (verify_expr_location_1): Dereference tp once.  Add (disabled)
1285         piece from verify_expr.
1286         (verify_gimple_in_cfg): Do not call verify_expr on all ops.
1287
1288 2018-04-30  Claudiu Zissulescu  <claziss@synopsys.com>
1289
1290         * config/arc/linux.h (CLEAR_INSN_CACHE): Define.
1291
1292 2018-04-30  Claudiu Zissulescu  <claziss@synopsys.com>
1293
1294         * config/arc/arc-protos.h (prepare_extend_operands): Remove.
1295         (small_data_pattern): Likewise.
1296         (arc_rewrite_small_data): Likewise.
1297         * config/arc/arc.c (LEGITIMATE_SMALL_DATA_OFFSET_P): Remove.
1298         (LEGITIMATE_SMALL_DATA_ADDRESS_P): Likewise.
1299         (get_symbol_alignment): New function.
1300         (legitimate_small_data_address_p): Likewise.
1301         (legitimate_scaled_address): Update, call
1302         legitimate_small_data_address_p.
1303         (output_sdata): New static variable.
1304         (arc_print_operand): Update how we handle small data operands.
1305         (arc_print_operand_address): Likewise.
1306         (arc_legitimate_address_p): Update, use
1307         legitimate_small_data_address_p.
1308         (arc_rewrite_small_data_p): Remove.
1309         (arc_rewrite_small_data_1): Likewise.
1310         (arc_rewrite_small_data): Likewise.
1311         (small_data_pattern): Likewise.
1312         (compact_sda_memory_operand): Update to use
1313         legitimate_small_data_address_p and get_symbol_alignment.
1314         (prepare_move_operands): Don't rewite sdata pattern.
1315         (prepare_extend_operands): Remove.
1316         * config/arc/arc.md (zero_extendqihi2): Don't rewrite sdata
1317         pattern.
1318         (zero_extendqisi2): Likewise.
1319         (zero_extendhisi2): Likewise.
1320         (extendqihi2): Likewise.
1321         (extendqisi2): Likewise.
1322         (extendhisi2): Likewise.
1323         (addsi3): Likewise.
1324         (subsi3): Likewise.
1325         (andsi3): Likewise.
1326         * config/arc/constraints.md (Usd): Change it to memory constraint.
1327
1328 2018-04-30  Claudiu Zissulescu  <claziss@synopsys.com>
1329
1330         * config/arc/arc.c (arc_split_move): Allow signed 6-bit constants
1331         as source of std instructions.
1332         * config/arc/arc.md (movsi_insn): Update pattern predicate to
1333         allow 6-bit constants as source for store instructions.
1334         (movdi_insn): Update instruction pattern to allow 6-bit constants
1335         as source for store instructions.
1336
1337 2018-04-30  Jonathan Wakely  <jwakely@redhat.com>
1338
1339         * doc/invoke.texi (-fdebug-types-section): Fix grammar.
1340
1341 2018-04-30  Nathan Sidwell  <nathan@acm.org>
1342             Sandra Loosemore <sandra@codesourcery.com>
1343
1344         * dumpfile.c (dump_open): Allow '-' for stdout.
1345         * doc/invoke.texi (Developer Options): Document dump filename
1346         determination early.  Document stdin/stdout selection.
1347
1348 2018-04-30 Andrew Sadek  <andrew.sadek.se@gmail.com>
1349
1350         Microblaze Target: PIC data text relative
1351
1352         * config/microblaze/microblaze.opt: add new option -mpic-data-text-rel.
1353         * config/microblaze/microblaze-protos.h (microblaze_constant_address_p):
1354         Add declaration.
1355         * gcc/config/microblaze/microblaze.h (microblaze_constant_address_p):
1356         CONSTANT_ADDRESS_P definition to microblaze_constant_address_p.
1357         * config/microblaze/microblaze.c (TARGET_PIC_DATA_TEXT_REL):
1358         New addressing mode for data-text relative position indepenedent code.
1359         (microblaze_classify_unspec): add 'UNSPEC_TEXT' case ->
1360         'ADDRESS_SYMBOLIC_TXT_REL'.
1361         (microblaze_classify_address): Add handling for UNSPEC + CONST_INT.
1362         (microblaze_legitimate_pic_operand): Exclude function calls from
1363         pic operands in case of TARGET_PIC_DATA_TEXT_REL option.
1364         (microblaze_legitimize_address): Generate 'UNSPEC_TEXT' for all possible
1365         addresses cases.
1366         (microblaze_address_insns): Add 'ADDRESS_SYMBOLIC_TXT_REL' case.
1367         (print_operand): Add 'ADDRESS_SYMBOLIC_TXT_REL' case.
1368         (print_operand_address): Add 'ADDRESS_SYMBOLIC_TXT_REL' case + handling
1369         for 'address + offset'.
1370         (microblaze_expand_prologue): Add new function prologue call for
1371         'r20' assignation.
1372         (microblaze_asm_generate_pic_addr_dif_vec): Override new target hook
1373         'TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC' to disable address diff vector
1374         table in case of TARGET_PIC_DATA_TEXT_REL.
1375         (expand_pic_symbol_ref): Add handling for 'UNSPEC_TEXT'.
1376         * gcc/config/microblaze/microblaze.md (TARGET_PIC_DATA_TEXT_REL):
1377         Add new macros 'UNSPEC_TEXT',
1378         'UNSPEC_SET_TEXT' + add rule for setting r20 in function prologue
1379         + exclude function calls from 'UNSPEC_PLT' in case of data text
1380         relative mode.
1381         * doc/tm.texi.in (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC): Add
1382         new target hook for generating address diff vector tables in case of
1383         flag_pic.
1384         * doc/tm.texi : Regenerate.
1385         * stmt.c (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC): Append new condition
1386         'targetm.asm_out.generate_pic_addr_diff_vec' to flag_pic in case
1387         of addr diff vector generation.
1388         * target.def (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC): Add
1389         target hook definition.
1390         * targhooks.h, gcc/targhooks.c (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC):
1391         Add default function for generate_pic_addr_diff_vec -> flag_pic.
1392         * doc/invoke.texi (Add new pic option): Add new microblaze pic
1393         option for data text relative.
1394
1395 2018-04-30  Richard Biener  <rguenther@suse.de>
1396
1397         * tree-chrec.h (evolution_function_is_constant_p): Remove
1398         redundant check.
1399         * tree-cfg.c (tree_node_can_be_shared): Re-order checks.
1400
1401 2018-04-30  Richard Biener  <rguenther@suse.de>
1402
1403         PR bootstrap/85571
1404         * dwarf2out.c (gen_producer_string): Ignore -fchecking[=].
1405
1406 2018-04-30  Richard Biener  <rguenther@suse.de>
1407
1408         PR tree-optimization/28364
1409         PR tree-optimization/85275
1410         * tree-ssa-loop-ch.c (ch_base::copy_headers): Stop after
1411         copying first exit test.
1412
1413 2018-04-28  Mark Wielaard  <mark@klomp.org>
1414
1415         * dwarf2out.c (dwarf2out_finish): Add .debug_addr table header for
1416         dwarf_version >= 5.
1417         (dwarf_AT): Handle DW_AT_addr_base.
1418         (add_top_level_skeleton_die_attrs): Use dwarf_AT for DW_AT_addr_base.
1419
1420 2018-04-28  Uros Bizjak  <ubizjak@gmail.com>
1421
1422         PR target/84431
1423         * config/i386/i386.md (*ashl<dwi>3_doubleword_mask): New pattern.
1424         (*ashl<dwi>3_doubleword_mask_1): Ditto.
1425         (*<shift_insn><dwi>3_doubleword_mask): Ditto.
1426         (*<shift_insn><dwi>3_doubleword_mask_1): Ditto.
1427
1428 2018-04-28  Richard Biener  <rguenther@suse.de>
1429
1430         * tree-cfg.c (verify_gimple_phi): Take a gphi * argument.
1431         (verify_gimple_in_cfg): Rename visited_stmts to visited_throwing_stmts
1432         to reflect use.  Only add interesting stmts.
1433
1434 2018-04-27  Martin Jambor  <mjambor@suse.cz>
1435
1436         PR ipa/85549
1437         * ipa-cp.c (find_aggregate_values_for_callers_subset): Make sure
1438         the jump function allows for passing through aggregate values.
1439
1440 2018-04-27  David Malcolm  <dmalcolm@redhat.com>
1441
1442         * input.h (in_system_header_at): Convert from macro to inline
1443         function.
1444         (from_macro_expansion_at): Likewise.
1445         (from_macro_definition_at): Likewise.
1446
1447 2018-04-27  Jeff Law  <law@redhat.com>
1448
1449         * config.gcc: Mark tile* targets as deprecated/obsolete.
1450
1451 2018-04-27  Richard Biener  <rguenther@suse.de>
1452
1453         * config/aarch64/aarch64.c: Simplify ap.__stack advance and
1454         fix for ILP32.
1455
1456 2018-04-27  Richard Biener  <rguenther@suse.de>
1457
1458         * tree-cfg.c (verify_expr): Make dead code hit gcc_unreachable.
1459
1460 2018-04-27  Uros Bizjak  <ubizjak@gmail.com>
1461
1462         * config/i386/i386.md (*movti_internal): Substitute Ye constraint
1463         with Yd constraint. Set "preferred_for_speed" attribute from
1464         TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC for alternatives
1465         with Yd constraint.
1466         (*movdi_internal): Ditto.
1467         (movti_interunit splitters): Remove
1468         TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC from insn condition.
1469         (movdi_interunit splitters): Ditto.
1470         * config/i386/constraints.md (Ye): Remove.
1471         (Yd): Do not depend on TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC.
1472
1473 2018-04-27  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1474
1475         PR target/85512
1476         * config/aarch64/constraints.md (Usg): Limit to 31.
1477         (Usj): Limit to 63.
1478
1479 2018-04-27  Jakub Jelinek  <jakub@redhat.com>
1480
1481         PR tree-optimization/85529
1482         * tree-ssa-reassoc.c (optimize_range_tests_var_bound): Add FIRST_BB
1483         argument.  Don't call get_nonzero_bits if opcode is ERROR_MARK_NODE,
1484         rhs2 def stmt's bb is dominated by first_bb and it isn't an obvious
1485         zero extension or masking of the MSB bit.
1486         (optimize_range_tests): Add FIRST_BB argument, pass it through
1487         to optimize_range_tests_var_bound.
1488         (maybe_optimize_range_tests, reassociate_bb): Adjust
1489         optimize_range_tests callers.
1490
1491 2018-04-26  Richard Biener  <rguenther@suse.de>
1492             Jakub Jelinek  <jakub@redhat.com>
1493
1494         * cgraph.h (symbol_table): Just declare debug method here.
1495         * symtab.c (symbol_table::debug): Define.
1496
1497 2018-04-26  Eric Botcazou  <ebotcazou@adacore.com>
1498
1499         * loop-invariant.c (may_assign_reg_p): Return false for frame pointer.
1500
1501 2018-04-26  Uros Bizjak  <ubizjak@gmail.com>
1502
1503         * config/i386/i386.md ("isa" attribute): Add x64_sse2.
1504         ("enabled" attribute): Handle x64_sse2 "isa" attribute.
1505         (*movdi_internal): Substitute Yi and Yj constraint with x
1506         and Ym and Yn constraint with y constraint.  Update "isa"
1507         attribute and set "preferred_for_speed" attribute from
1508         TARGET_INTER_UNIT_MOVES_{FROM,TO}_VEC for updated alternatives.
1509         (*movsi_internal): Ditto.
1510         (*movdf_internal): Ditto.
1511         (*movsf_internal): Ditto.
1512         (*zero_extendsidi2): Ditto.
1513         * config/i386/sse.md (vec_set<mode>_0): Ditto.
1514         (sse2_loadld): Ditto.
1515         (*vec_extract<ssevecmodelower>_0): Ditto.
1516         (*vec_extractv4si_0_zext_sse4): Ditto.
1517         (vec_concatv2di): Ditto.
1518         (*vec_dup<mode>): Ditto.
1519         * config/i386/mmx.md (*mov<mode>_internal): Ditto.
1520         * config/i386/constraints.md (Yi): Remove.
1521         (Yj): Remove.
1522         (Ym): Remove.
1523         (Yn): Remove.
1524
1525 2018-04-26  Nathan Sidwell  <nathan@acm.org>
1526
1527         * dumpfile.c (dump_open): New.
1528         (dump_open_alternate_stream, dump_start, dump_begin): Call it.
1529         (dump_finish): Detect stdio/stderr by value not name.
1530
1531 2018-04-26  Jonathan Wakely  <jwakely@redhat.com>
1532
1533         * doc/invoke.texi (-Wreturn-type): Document default status for C++.
1534
1535 2018-04-26  Tom de Vries  <tom@codesourcery.com>
1536
1537         PR target/84952
1538         * config/nvptx/nvptx.c (verify_neutering_jumps)
1539         (verify_neutering_labels): New function
1540         (nvptx_single): Use verify_neutering_jumps and verify_neutering_labels.
1541
1542 2018-04-26  Tom de Vries  <tom@codesourcery.com>
1543
1544         PR target/84025
1545         * config/nvptx/nvptx.c (needs_neutering_p): New function.
1546         (nvptx_single): Use needs_neutering_p to skip over insns that do not
1547         need neutering.
1548
1549 2018-04-26  Richard Biener <rguenther@suse.de>
1550             Tom de Vries  <tom@codesourcery.com>
1551
1552         PR lto/85422
1553         * lto-streamer-out.c (output_function): Fixup loops if required to match
1554         discovery done in the reader.
1555
1556 2018-04-26  Richard Biener  <rguenther@suse.de>
1557
1558         PR tree-optimization/85116
1559         * tree-ssa-loop-ch.c (do_while_loop_p): A do-while loop should
1560         have a loop exit from the single latch predecessor.  Remove
1561         case of header with just condition.
1562         (ch_base::copy_headers): Exclude infinite loops from any
1563         processing.
1564         (pass_ch::execute): Record exits.
1565
1566 2018-04-26  Richard Biener  <rguenther@suse.de>
1567
1568         * tree-vect-data-refs.c (vect_get_data_access_cost): Get
1569         prologue cost vector and pass it to vect_get_load_cost.
1570         (vect_get_peeling_costs_all_drs): Likewise.
1571         (vect_peeling_hash_get_lowest_cost): Likewise.
1572         (vect_enhance_data_refs_alignment): Likewise.
1573
1574 2018-04-26  Richard Biener  <rguenther@suse.de>
1575
1576         PR middle-end/85450
1577         * tree-cfg.c (verify_gimple_assign_unary): Restore proper
1578         checking of integer<->pointer conversions.
1579         * omp-expand.c (expand_omp_for_static_nochunk): Avoid
1580         sign-/zero-extending pointer types.
1581         (expand_omp_for_static_chunk): Likewise.
1582
1583 2018-03-22  Hans-Peter Nilsson  <hp@axis.com>
1584             Jean Lee  <xiaoyur347@gmail.com>
1585
1586         * config/mips/mips.c (mips_asan_shadow_offset): New function.
1587         (TARGET_ASAN_SHADOW_OFFSET): Define.
1588         * config/mips/mips.h (FRAME_GROWS_DOWNWARD): Augment to also be
1589         true for -fsanitize=address.
1590
1591 2018-04-25  Mark Wielaard  <mark@klomp.org>
1592
1593         * dwarf2out.c (file_info_cmp): Sort longer dir prefixes before
1594         shorter ones.
1595
1596 2018-04-25  Jakub Jelinek  <jakub@redhat.com>
1597
1598         * config/i386/i386.md (*x86_mov<mode>cc_0_m1): Use type "alu1" rather
1599         than "alu", remove explicit "memory" and "imm_disp" attributes.
1600         (*x86_mov<mode>cc_0_m1_se, *x86_mov<mode>cc_0_m1_neg): Likewise.
1601
1602         PR middle-end/85414
1603         * simplify-rtx.c (simplify_unary_operation_1) <case SIGN_EXTEND,
1604         case ZERO_EXTEND>: Pass SUBREG_REG (op) rather than op to
1605         gen_lowpart_no_emit.
1606
1607 2018-04-25  Sebastian Peryt  <sebastian.peryt@intel.com>
1608
1609         PR target/85473
1610         * config/i386/i386.c (ix86_expand_builtin): Change memory
1611         operand to XI, extend p0 to Pmode.
1612         * config/i386/i386.md: Change unspec volatile and operand
1613         1 mode to XI, change operand 0 mode to P.
1614
1615 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
1616
1617         * config/nds32/nds32-predicates.c (nds32_can_use_bclr_p): Mask with
1618         GET_MODE_MASK before any checking.
1619         (nds32_can_use_bset_p): Likewise.
1620         (nds32_can_use_btgl_p): Likewise.
1621
1622 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
1623
1624         * config/nds32/nds32-doubleword.md: New define_split pattern for
1625         illegal register number.
1626
1627 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
1628
1629         * config/nds32/nds32.c (nds32_print_operand): Set op_value ealier.
1630
1631 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
1632
1633         * config/nds32/nds32.h (ASM_APP_ON): Add missing newline character.
1634
1635 2018-04-25  Richard Biener  <rguenther@suse.de>
1636
1637         * lto-streamer.h (LTO_major_version): Bump to 8.
1638
1639 2018-04-25  Jakub Jelinek  <jakub@redhat.com>
1640
1641         * BASE-VER: Set to 9.0.0.
1642
1643 2018-04-24  Segher Boessenkool  <segher@kernel.crashing.org>
1644
1645         * config/rs6000/rs6000.c (init_float128_ieee): Fix spelling mistakes
1646         in __abskf2 and __powikf2.
1647
1648 2018-04-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1649
1650         PR target/85512
1651         * config/aarch64/constraints.md (Usg, Usj): New constraints.
1652         * config/aarch64/iterators.md (cmode_simd): New mode attribute.
1653         * config/aarch64/aarch64.md (*aarch64_ashr_sisd_or_int_<mode>3):
1654         Use the above on operand 2.  Reindent.
1655         (*aarch64_lshr_sisd_or_int_<mode>3): Likewise.
1656
1657 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
1658
1659         PR target/85485
1660         * common/config/i386/i386-common.c (ix86_handle_option): Don't
1661         handle OPT_mcet.
1662         * config/i386/i386.opt (mcet): Removed.
1663         * doc/install.texi: Remove -mcet documentation.
1664         * doc/invoke.texi: Likewise.
1665
1666 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
1667
1668         PR target/85485
1669         * doc/install.texi: Remove -mcet from bootstrap-cet.
1670
1671 2018-04-24  Jakub Jelinek  <jakub@redhat.com>
1672
1673         PR target/85511
1674         * config/i386/i386.c (ix86_init_mmx_sse_builtins): Don't define
1675         __builtin_ia32_readeflags_u32 and __builtin_ia32_writeeflags_u32
1676         if TARGET_64BIT.
1677
1678         PR target/85503
1679         * config/rs6000/rs6000-p8swap.c (const_load_sequence_p): Punt if
1680         const_vector is not CONST_VECTOR or SYMBOL_REF for a constant pool
1681         containing a CONST_VECTOR.
1682
1683 2018-04-24  Cesar Philippidis  <cesar@codesourcery.com>
1684
1685         * doc/install.texi: Update newlib dependency for nvptx.
1686
1687 2018-04-24  Jakub Jelinek  <jakub@redhat.com>
1688
1689         PR target/85508
1690         * config/i386/i386.c (ix86_expand_vector_init_one_var): Use UINTVAL
1691         instead of INTVAL when shifting x left.
1692
1693 2018-04-24  Andreas Krebbel  <krebbel@linux.ibm.com>
1694
1695         PR tree-optimization/85478
1696         * tree-vect-loop.c (vect_analyze_loop_2): Do not call
1697         vect_grouped_store_supported for single element vectors.
1698
1699 2018-04-24  Richard Biener  <rguenther@suse.de>
1700
1701         PR target/85491
1702         * config/i386/i386.c (ix86_add_stmt_cost): Restrict strided
1703         load cost increase to the case of non-constant step.
1704
1705 2018-04-24  Jakub Jelinek  <jakub@redhat.com>
1706
1707         PR target/84828
1708         * reg-stack.c (move_for_stack_reg): Don't fail assertion about dead
1709         destination if any_malformed_asm.
1710
1711 2018-04-23  Eric Botcazou  <ebotcazou@adacore.com>
1712
1713         PR middle-end/85496
1714         * expr.c (store_field): In the bitfield case, if the value comes from
1715         a function call and is returned in registers by means of a PARALLEL,
1716         do not change the mode of the temporary unless BLKmode and VOIDmode.
1717
1718 2018-04-23  Andrey Belevantsev  <abel@ispras.ru>
1719
1720         PR rtl-optimization/85423
1721         * sel-sched-ir.c (has_dependence_note_mem_dep): Only discard
1722         dependencies to debug insns when the previous insn is non-debug.
1723
1724 2018-04-23  Claudiu Zissulescu  <claziss@synopsys.com>
1725
1726         * config/arc/arc.md ("vunspec"): Delete it, unify all the unspec
1727         enums into a single definition.
1728         (fls): Fix predicates and printing.
1729         (seti): Likewise.
1730
1731 2018-04-23  Claudiu Zissulescu  <claziss@synopsys.com>
1732
1733         * config/arc/arc-protos.h (check_if_valid_sleep_operand): Remove.
1734         * config/arc/arc.c (arc_expand_builtin): Sleep accepts registers
1735         and short u6 immediate.
1736         (check_if_valid_sleep_operand): Remove.
1737         * config/arc/arc.md (Sleep): Accepts registers and u6 immediates.
1738
1739 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
1740
1741         * config/nds32/nds32.c (nds32_compute_stack_frame): Consider
1742         flag_always_save_lp condition.
1743         * config/nds32/nds32.opt (malways-save-lp): New option.
1744
1745 2018-04-22  Shiva Chen  <shiva0217@gmail.com>
1746
1747         * config/nds32/nds32-protos.h (nds32_use_load_post_increment): Declare.
1748         * config/nds32/nds32.c (nds32_use_load_post_increment): New.
1749         * config/nds32/nds32.h
1750         (USE_LOAD_POST_INCREMENT, USE_LOAD_POST_DECREMENT): Define.
1751         (USE_STORE_POST_INCREMENT, USE_STORE_POST_DECREMENT): Define.
1752
1753 2018-04-22  Shiva Chen  <shiva0217@gmail.com>
1754
1755         * config/nds32/nds32-protos.h (nds32_ls_333_p): Remove.
1756         * config/nds32/nds32.c (nds32_ls_333_p): Remove.
1757
1758 2018-04-22  Shiva Chen  <shiva0217@gmail.com>
1759             Chung-Ju Wu  <jasonwucj@gmail.com>
1760
1761         * config/nds32/nds32-protos.h (nds32_case_vector_shorten_mode):
1762         Declare.
1763         * config/nds32/nds32.c (nds32_case_vector_shorten_mode): New function.
1764         * config/nds32/nds32.h (CASE_VECTOR_SHORTEN_MODE): Modify.
1765
1766 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
1767
1768         * config/nds32/nds32.c (nds32_compute_stack_frame): Fix wrong value.
1769
1770 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
1771
1772         * config/nds32/nds32-protos.h (nds32_data_alignment,
1773         nds32_local_alignment): Declare.
1774         * config/nds32/nds32.c (nds32_data_alignment, nds32_constant_alignment,
1775         nds32_local_alignment): New functions.
1776         (TARGET_CONSTANT_ALIGNMENT): Define.
1777         * config/nds32/nds32.h (DATA_ALIGNMENT, LOCAL_ALIGNMENT): Define.
1778
1779 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
1780
1781         * config/nds32/nds32.c
1782         (TARGET_HARD_REGNO_MODE_OK): Move to the bottom of file.
1783         (TARGET_MODES_TIEABLE_P): Likewise.
1784
1785 2018-04-22  Chung-Ju Wu  <jasonwucj@gmail.com>
1786
1787         * config/nds32/nds32.c (nds32_asm_file_start): Display optimization
1788         level Ofast and Og.
1789
1790 2018-04-22  Monk Chiang  <sh.chiang04@gmail.com>
1791             Chung-Ju Wu  <jasonwucj@gmail.com>
1792
1793         * config/nds32/constants.md (unspec_volatile_element): Add enum values
1794         for unaligned access.
1795         * config/nds32/nds32-intrinsic.c: Implementation of expanding
1796         unaligned access.
1797         * config/nds32/nds32-intrinsic.md: Likewise.
1798         * config/nds32/nds32_intrinsic.h: Likewise.
1799         * config/nds32/nds32.h (nds32_builtins): Likewise.
1800         * config/nds32/nds32.opt (munaligned-access): New option.
1801         * config/nds32/nds32.c (nds32_asm_file_start): Display
1802         flag_unaligned_access status.
1803
1804 2018-04-20  Kito Cheng  <kito.cheng@gmail.com>
1805
1806         * config/riscv/elf.h (LINK_SPEC): Pass --no-relax if
1807         -mno-relax is present.
1808         * config/riscv/linux.h (LINK_SPEC): Ditto.
1809
1810 2018-04-20  Martin Sebor  <msebor@redhat.com>
1811
1812         PR c/85365
1813         * gimple-fold.c (gimple_fold_builtin_strcpy): Suppress -Wrestrict
1814         for null pointers.
1815         (gimple_fold_builtin_stxcpy_chk): Same.
1816         * gimple-ssa-warn-restrict.c (check_bounds_or_overlap): Same.
1817
1818 2018-04-20  Michael Meissner  <meissner@linux.ibm.com>
1819
1820         PR target/85456
1821         * config/rs6000/rs6000.c (init_float128_ieee): Add support to call
1822         __powikf2 when long double is IEEE 128-bit.
1823
1824 2018-04-20  Kito Cheng  <kito.cheng@gmail.com>
1825
1826         * config/riscv/riscv.c (riscv_first_stack_step): Round up min
1827         step to make sure stack always aligned.
1828
1829 2018-04-20  Carl Love  <cel@us.ibm.com>
1830
1831         PR target/83402
1832         * config/rs6000/rs6000-c.c (rs6000_gimple_fold_builtin): Add
1833         size check for arg0.
1834
1835 2018-04-20  Nathan Sidwell  <nathan@codesourcery.com>
1836             Tom de Vries  <tom@codesourcery.com>
1837
1838         PR target/85445
1839         * config/nvptx/nvptx.c (nvptx_emit_forking, nvptx_emit_joining):
1840         Emit insns for calls too.
1841         (nvptx_find_par): Always look for worker-level predecessor insn.
1842         (nvptx_propagate): Add is_call parm, return bool.  Copy frame for
1843         calls.
1844         (nvptx_vpropagate, nvptx_wpropagate): Adjust.
1845         (nvptx_process_pars): Propagate frames for calls.
1846
1847 2018-04-20  H.J. Lu  <hongjiu.lu@intel.com>
1848
1849         PR target/85469
1850         * common/config/i386/i386-common.c (OPTION_MASK_ISA_IBT_SET):
1851         Removed.
1852         (OPTION_MASK_ISA_IBT_UNSET): Likewise.
1853         (ix86_handle_option): Don't handle OPT_mibt.
1854         * config/i386/cet.h: Check __CET__ instead of __IBT__ and
1855         __SHSTK__.
1856         * config/i386/driver-i386.c (host_detect_local_cpu): Remove
1857         has_ibt and ibt.
1858         * config/i386/i386-c.c (ix86_target_macros_internal): Don't
1859         check OPTION_MASK_ISA_IBT nor flag_cf_protection.
1860         (ix86_target_macros): Define __CET__ with flag_cf_protection
1861         for -fcf-protection.
1862         * config/i386/i386.c (isa2_opts): Remove -mibt.
1863         * config/i386/i386.h (TARGET_IBT): Removed.
1864         (TARGET_IBT_P): Likewise.
1865         (ix86_valid_target_attribute_inner_p): Don't check OPT_mibt.
1866         * config/i386/i386.md (nop_endbr): Don't check TARGET_IBT.
1867         * config/i386/i386.opt (mcet): Update help message.
1868         (mshstk): Likewise.
1869         (mibt): Removed.
1870         * doc/invoke.texi: Remove -mibt.  Document __CET__.  Document
1871         -mcet as an alias for -mshstk.
1872
1873 2018-04-20  Richard Biener <rguenther@suse.de>
1874
1875         PR middle-end/85475
1876         * match.pd ((X * CST) * Y -> (X * Y) * CST): Avoid exponential
1877         complexity by forcing a single use of the multiply operand.
1878
1879 2018-04-20  Martin Jambor  <mjambor@suse.cz>
1880
1881         ipa/85449
1882         * ipa-cp.c (cgraph_edge_brings_value_p): Move check for self-feeding
1883         recursion dependency to only apply to non-clones.
1884
1885 2018-04-20  Martin Jambor  <mjambor@suse.cz>
1886
1887         ipa/85447
1888         * ipa-cp.c (create_specialized_node): Check that clones of
1889         self-recursive edges exist during IPA-CP.
1890
1891 2018-04-19  Toon Moene  <toon@moene.org>
1892
1893         * doc/invoke.texi: Add -floop-unroll-and-jam to options enabled
1894         by -O3.
1895
1896 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
1897
1898         PR tree-optimization/85467
1899         * fold-const.c (fold_ternary_loc) <case BIT_FIELD_REF>: Use
1900         VECTOR_TYPE_P macro.  If type is vector type, VIEW_CONVERT_EXPR the
1901         VECTOR_CST element to type.
1902
1903 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
1904
1905         PR target/85397
1906         * config/i386/i386.h (STACK_SAVEAREA_MODE): New.
1907         * config/i386/i386.md (builtin_setjmp_setup): Removed.
1908         (builtin_longjmp): Likewise.
1909         (save_stack_nonlocal): New pattern.
1910         (restore_stack_nonlocal): Likewise.
1911
1912 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
1913
1914         PR target/85404
1915         * config/i386/cet.c (file_end_indicate_exec_stack_and_cet):
1916         Replace ASM_OUTPUT_LABEL with fprintf.
1917
1918 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
1919
1920         PR target/85417
1921         * config/i386/cet.c (file_end_indicate_exec_stack_and_cet):
1922         Check flag_cf_protection instead of TARGET_IBT and TARGET_SHSTK.
1923         * config/i386/i386-c.c (ix86_target_macros_internal): Also
1924         define __IBT__ and __SHSTK__ for -fcf-protection.
1925         * config/i386/i386.c (pass_insert_endbranch::gate): Don't check
1926         TARGET_IBT.
1927         (ix86_trampoline_init): Likewise.
1928         (x86_output_mi_thunk): Likewise.
1929         (ix86_notrack_prefixed_insn_p): Likewise.
1930         (ix86_option_override_internal): Don't disallow -fcf-protection.
1931         * config/i386/i386.md (rdssp<mode>): Also enable for
1932         -fcf-protection.
1933         (incssp<mode>): Likewise.
1934         (nop_endbr): Likewise.
1935         * config/i386/i386.opt (mcet): Change help message to built-in
1936         functions only.
1937         (mibt): Likewise.
1938         (mshstk): Likewise.
1939         * doc/invoke.texi: Remove -mcet, -mibt and -mshstk condition
1940         on -fcf-protection.  Change -mcet, -mibt and -mshstk to only
1941         enable CET built-in functions.
1942
1943 2018-04-19  Sebastian Peryt  <sebastian.peryt@intel.com>
1944
1945         * common/config/i386/i386-common.c
1946         (OPTION_MASK_ISA_MOVDIRI_SET, OPTION_MASK_ISA_MOVDIR64B_SET,
1947         OPTION_MASK_ISA_MOVDIRI_UNSET,
1948         OPTION_MASK_ISA_MOVDIR64B_UNSET): New defines.
1949         (ix86_handle_option): Handle -mmovdiri and -mmovdir64b.
1950         * config.gcc (movdirintrin.h): New header.
1951         * config/i386/cpuid.h (bit_MOVDIRI,
1952         bit_MOVDIR64B): New bits.
1953         * config/i386/driver-i386.c (host_detect_local_cpu): Detect -mmovdiri
1954         and -mmvodir64b.
1955         * config/i386/i386-builtin-types.def ((VOID, PUNSIGNED, UNSIGNED),
1956         (VOID, PVOID, PCVOID)): New function types.
1957         * config/i386/i386-builtin.def (__builtin_ia32_directstoreu_u32,
1958         __builtin_ia32_directstoreu_u64,
1959          __builtin_ia32_movdir64b): New builtins.
1960         * config/i386/i386-c.c (__MOVDIRI__, __MOVDIR64B__): New.
1961         * config/i386/i386.c (ix86_target_string): Added -mmovdir64b
1962         and -mmovdiri.
1963         (ix86_valid_target_attribute_inner_p): Ditto.
1964         (ix86_expand_special_args_builtin): Added VOID_FTYPE_PUNSIGNED_UNSIGNED
1965         and VOID_FTYPE_PUNSIGNED_UNSIGNED.
1966         (ix86_expand_builtin): Expand IX86_BUILTIN_MOVDIR64B.
1967         * config/i386/i386.h (TARGET_MOVDIRI, TARGET_MOVDIRI_P,
1968         TARGET_MOVDIR64B, TARGET_MOVDIR64B_P): New.
1969         * config/i386/i386.md (UNSPECV_MOVDIRI, UNSPECV_MOVDIR64B): New.
1970         (movdiri<mode>, movdir64b_<mode>): New.
1971         * config/i386/i386.opt: Add -mmovdiri and -mmovdir64b.
1972         * config/i386/immintrin.h: Include movdirintrin.h.
1973         * config/i386/movdirintrin.h: New file.
1974         * doc/invoke.texi: Added -mmovdiri and -mmovdir64b.
1975
1976 2018-04-19  Richard Biener  <rguenther@suse.de>
1977
1978         PR middle-end/85455
1979         * cfg.c (clear_bb_flags): When loop state says we have
1980         marked irreducible regions also preserve BB_IRREDUCIBLE_LOOP.
1981
1982 2018-04-19  Richard Biener  <rguenther@suse.de>
1983
1984         PR tree-optimization/84737
1985         * tree-vect-data-refs.c (vect_copy_ref_info): New function
1986         copying restrict info.
1987         (vect_setup_realignment): Use it.
1988         * tree-vectorizer.h (vect_copy_ref_info): Declare.
1989         * tree-vect-stmts.c (vectorizable_store): Copy ref info from
1990         the first DR to all generated stores.
1991         (vectorizable_load): Likewise for loads.
1992
1993 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
1994
1995         PR tree-optimization/85446
1996         * match.pd ((intptr_t) x eq/ne CST to x eq/ne (typeof x) cst): Require
1997         the integral and pointer types to have the same precision.
1998
1999         * doc/install.texi: Document --disable-cet being the default and
2000         --enable-cet=auto.
2001
2002 2018-04-18  Martin Liska  <mliska@suse.cz>
2003
2004         * ipa-devirt.c (odr_subtypes_equivalent_p): Fix GNU coding
2005         style.
2006
2007 2018-04-18  Martin Liska  <mliska@suse.cz>
2008
2009         Revert
2010         2018-03-02  Eric Botcazou  <ebotcazou@adacore.com>
2011
2012         PR ipa/83983
2013         * ipa-devirt.c (odr_subtypes_equivalent_p): Get the ODR type of both
2014         arguments if they are comparable.
2015
2016 2018-04-18  Martin Liska  <mliska@suse.cz>
2017
2018         Revert
2019         2018-03-13  Eric Botcazou  <ebotcazou@adacore.com>
2020
2021         PR lto/84805
2022         * ipa-devirt.c (odr_subtypes_equivalent_p): Do not get the ODR type of
2023         incomplete types.
2024
2025 2018-04-18  H.J. Lu  <hongjiu.lu@intel.com>
2026
2027         PR target/85388
2028         * config/i386/i386.c (ix86_expand_split_stack_prologue): Insert
2029         ENDBR after calling __morestack.
2030
2031 2018-04-18  David Malcolm  <dmalcolm@redhat.com>
2032
2033         PR jit/85384
2034         * configure.ac (gcc-driver-name.h): Honor --with-gcc-major-version
2035         by using gcc_base_ver to generate a gcc_driver_version, and use
2036         it when generating GCC_DRIVER_NAME.
2037         * configure: Regenerate.
2038
2039 2018-04-18  Jakub Jelinek  <jakub@redhat.com>
2040
2041         PR target/81084
2042         * config.gcc: Obsolete powerpc*-*-*spe*.
2043
2044 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
2045
2046         PR debug/84637
2047         * dbxout.c (dbxout_int): Perform negation in unsigned int type.
2048         (stabstr_D): Change type of unum from unsigned int to
2049         unsigned HOST_WIDE_INT.  Perform negation in unsigned HOST_WIDE_INT
2050         type.
2051
2052 2018-04-17  Jim Wilson  <jimw@sifive.com>
2053
2054         PR 84856
2055         * config/riscv/riscv.c (riscv_compute_frame_info): Add calls to
2056         RISCV_STACK_ALIGN when using outgoing_args_size and pretend_args_size.
2057         Set arg_pointer_offset after using pretend_args_size.
2058
2059 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
2060
2061         PR rtl-optimization/85431
2062         * dse.c (record_store): Ignore zero width stores.
2063
2064         PR sanitizer/85230
2065         * asan.c (handle_builtin_stack_restore): Adjust comment.  Emit
2066         __asan_allocas_unpoison call and last_alloca_addr = new_sp before
2067         __builtin_stack_restore rather than after it.
2068         * builtins.c (expand_asan_emit_allocas_unpoison): Pass
2069         arg1 + (virtual_dynamic_stack_rtx - stack_pointer_rtx) as second
2070         argument instead of virtual_dynamic_stack_rtx.
2071
2072 2018-04-17  Kelvin Nilsen  <kelvin@gcc.gnu.org>
2073
2074         * config/rs6000/rs6000-protos.h (rs6000_builtin_is_supported_p):
2075         New prototype.
2076         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
2077         Add note to error message to explain internal mapping of overloaded
2078         built-in function name to non-overloaded built-in function name.
2079         * config/rs6000/rs6000.c (rs6000_builtin_is_supported_p): New
2080         function.
2081
2082 2018-04-17  Michael Meissner  <meissner@linux.vnet.ibm.com>
2083
2084         PR target/85424
2085         * config/rs6000/rs6000.md (pack<mode>): Do not try handle a pack
2086         where the inputs overlap with the output.
2087
2088 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
2089
2090         * config/i386/sse.md (vec_extract_lo_<mode><mask_name>): Add
2091         (=v, v) alternative and explicit "memory" attribute.
2092         (vec_extract_lo_<mode><mask_name>): Likewise.  Also add
2093         "type", "prefix", "prefix_extra", "length_immediate" and "mode"
2094         attributes.
2095         (vec_extract_lo_<mode><mask_name>): Add (=v, v) alternative and use
2096         "sselog1" type instead of "sselog".
2097         (vec_extract_hi_<mode><mask_name>): Use "sselog1" type instead of
2098         "sselog".  Remove explicit "memory" attribute.
2099         (vec_extract_lo_v32hi): Add (=v, v) alternative and explicit "memory",
2100         "type", "prefix", "prefix_extra", "length_immediate" and "mode"
2101         attributes.
2102         (vec_extract_hi_v32hi): Merge all alternatives into one, use
2103         "sselog1" type instead of "sselog".  Remove explicit "memory"
2104         attribute.
2105         (vec_extract_hi_v16hi): Merge each pair of alternatives into one,
2106         use "sselog1" type instead of "sselog".  Remove explicit "memory"
2107         attribute.
2108         (vec_extract_lo_v64qi): Add (=v, v) alternative and explicit "memory",
2109         "type", "prefix", "prefix_extra", "length_immediate" and "mode"
2110         attributes.
2111         (vec_extract_hi_v64qi): Merge all alternatives into one, use
2112         "sselog1" type instead of "sselog".  Remove explicit "memory"
2113         attribute.
2114         (vec_extract_hi_v32qi): Merge each pair of alternatives into one,
2115         use "sselog1" type instead of "sselog".  Remove explicit "memory"
2116         attribute.
2117
2118         PR target/85430
2119         * config/i386/i386.md (*ashlqi3_1_slp): Use alu1 type instead of alu.
2120
2121         PR middle-end/85414
2122         * rtlhooks.c (gen_lowpart_if_possible): Don't call gen_lowpart_SUBREG
2123         on a SUBREG.
2124
2125 2018-04-17  Martin Jambor  <mjambor@suse.cz>
2126
2127         PR ipa/85421
2128         * ipa-cp.c (create_specialized_node): Call
2129         expand_all_artificial_thunks if necessary.
2130
2131 2018-04-17  Martin Liska  <mliska@suse.cz>
2132
2133         PR lto/85405
2134         * ipa-devirt.c (odr_types_equivalent_p): Remove trailing
2135         in message, remote space in between '_G' and '('.
2136
2137 2018-04-17  Jakub Jelinek  <jakub@redhat.com>
2138
2139         PR target/85281
2140         * config/i386/sse.md (reduces<mode><mask_scalar_name>,
2141         avx512f_vmcmp<mode>3<round_saeonly_name>,
2142         avx512f_vmcmp<mode>3_mask<round_saeonly_name>,
2143         avx512f_sgetexp<mode><mask_scalar_name><round_saeonly_scalar_name>,
2144         avx512f_rndscale<mode><round_saeonly_name>,
2145         avx512dq_ranges<mode><mask_scalar_name><round_saeonly_scalar_name>,
2146         avx512f_vgetmant<mode><mask_scalar_name><round_saeonly_scalar_name>):
2147         Use %<iptr>2 instead of %2 for -masm=intel.
2148         (avx512f_vcvtss2usi<round_name>, avx512f_vcvtss2usiq<round_name>,
2149         avx512f_vcvttss2usi<round_saeonly_name>,
2150         avx512f_vcvttss2usiq<round_saeonly_name>): Use %k1 instead of %1 for
2151         -masm=intel.
2152         (avx512f_vcvtsd2usi<round_name>, avx512f_vcvtsd2usiq<round_name>,
2153         avx512f_vcvttsd2usi<round_saeonly_name>,
2154         avx512f_vcvttsd2usiq<round_saeonly_name>, ufloatv2siv2df2<mask_name>):
2155         Use %q1 instead of %1 for -masm=intel.
2156         (avx512f_sfixupimm<mode><sd_maskz_name><round_saeonly_name>,
2157         avx512f_sfixupimm<mode>_mask<round_saeonly_name>): Use %<iptr>3 instead
2158         of %3 for -masm=intel.
2159         (sse2_shufpd_v2df_mask): Fix a typo, change %{6%} to %{%6%} for
2160         -masm=intel.
2161         (*avx512vl_<code>v2div2qi2_store): Use %w0 instead of %0 for
2162         -masm=intel.
2163         (*avx512vl_<code><mode>v4qi2_store): Use %k0 instead of %0 for
2164         -masm=intel.
2165         (avx512vl_<code><mode>v4qi2_mask_store): Use a single pattern with
2166         %k0 and %1 for -masm=intel rather than two patterns, one with %0 and
2167         %g1.
2168         (*avx512vl_<code><mode>v8qi2_store): Use %q0 instead of %0 for
2169         -masm=intel.
2170         (avx512vl_<code><mode>v8qi2_mask_store): Use a single pattern with
2171         %q0 and %1 for -masm=intel rather than two patterns, one with %0 and
2172         %g1 and one with %0 and %1.
2173         (avx512er_vmrcp28<mode><round_saeonly_name>,
2174         avx512er_vmrsqrt28<mode><round_saeonly_name>): Use %<iptr>1 instead of
2175         %1 for -masm=intel.
2176         (avx5124fmaddps_4fmaddps_mask, avx5124fmaddps_4fmaddss_mask,
2177         avx5124fmaddps_4fnmaddps_mask, avx5124fmaddps_4fnmaddss_mask,
2178         avx5124vnniw_vp4dpwssd_mask, avx5124vnniw_vp4dpwssds_mask): Swap order
2179         of %0 and %{%4%} for -masm=intel.
2180         (avx5124fmaddps_4fmaddps_maskz, avx5124fmaddps_4fmaddss_maskz,
2181         avx5124fmaddps_4fnmaddps_maskz, avx5124fmaddps_4fnmaddss_maskz,
2182         avx5124vnniw_vp4dpwssd_maskz, avx5124vnniw_vp4dpwssds_maskz): Swap
2183         order of %0 and %{%5%}%{z%} for -masm=intel.
2184
2185 2018-04-17  Jan Hubicka  <jh@suse.cz>
2186
2187         PR lto/85405
2188         * ipa-devirt.c (odr_types_equivalent_p): Handle bit fields.
2189
2190 2018-04-17  Martin Liska  <mliska@suse.cz>
2191
2192         PR ipa/85329
2193         * multiple_target.c (create_dispatcher_calls): Set apostrophes
2194         for target_clone error message.  Make default implementation
2195         clone to be a local declaration.
2196         (separate_attrs): Add new argument and check for an empty
2197         string.
2198         (expand_target_clones): Handle it.
2199         (ipa_target_clone): Make redirection just for target_clones
2200         functions.
2201
2202 2018-04-16  Cesar Philippidis  <cesar@codesourcery.com>
2203             Tom de Vries  <tom@codesourcery.com>
2204
2205         PR middle-end/84955
2206         * omp-expand.c (expand_oacc_for): Add dummy false branch for
2207         tiled basic blocks without omp continue statements.
2208
2209 2018-04-16  Aaron Sawdey  <acsawdey@linux.ibm.com>
2210
2211         PR target/83660
2212         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Mark
2213         vec_extract expression as having side effects to make sure it gets
2214         a cleanup point.
2215
2216 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
2217
2218         PR target/85403
2219         * config/i386/i386.c (get_builtin_code_for_version): Check
2220         error_mark_node.
2221
2222 2018-04-16  Olga Makhotina  <olga.makhotina@intel.com>
2223
2224         PR target/84331
2225         * gcc/config.gcc: Support "skylake".
2226         * gcc/config/i386/i386-c.c (ix86_target_macros_internal): Handle
2227         PROCESSOR_SKYLAKE.
2228         * gcc/config/i386/i386.c (m_SKYLAKE): Define.
2229         (processor_target_table): Add "skylake".
2230         (ix86_option_override_internal): Add "skylake".
2231         (get_builtin_code_for_version): Handle PROCESSOR_SKYLAKE,
2232         PROCESSOR_CANNONLAKE.
2233         (get_builtin_code_for_version): Fix priority for
2234         PROCESSOR_ICELAKE_CLIENT, PROCESSOR_ICELAKE_SERVER,
2235         PROCESSOR_SKYLAKE-AVX512.
2236         * gcc/config/i386/i386.h (processor_costs): Define TARGET_SKYLAKE.
2237         (processor_type): Add PROCESSOR_SKYLAKE.
2238
2239 2018-04-16  Paolo Carlini  <paolo.carlini@oracle.com>
2240             Jason Merrill  <jason@redhat.com>
2241
2242         PR c++/85112
2243         * convert.c (convert_to_integer_1): Use direct recursion for
2244         enumeral types and types with a precision less than the number
2245         of bits in their mode.
2246
2247 2018-04-16  Julia Koval  <julia.koval@intel.com>
2248
2249         PR target/84413
2250         * config/i386/x86-tune.def (X86_TUNE_SSE_UNALIGNED_LOAD_OPTIMAL,
2251         X86_TUNE_SSE_UNALIGNED_STORE_OPTIMAL): Add m_SKYLAKE_AVX512
2252
2253 2018-04-14  Segher Boessenkool  <segher@kernel.crashing.org>
2254
2255         PR target/85293
2256         * config/rs6000/rs6000.opt (mdirect-move): Make deprecated.
2257         * doc/invoke.texi (RS/6000 and PowerPC Options): Remove -mdirect-move
2258         and -mno-direct-move.
2259
2260 2018-04-13  Paul A. Clarke  <pc@us.ibm.com>
2261
2262         PR target/83402
2263         * config/rs6000/emmintrin.h (_mm_slli_epi{16,32,64}):
2264         Ensure that vec_splat_s32 is only called with 0 <= shift < 16.
2265         Ensure negative shifts result in {0}.
2266
2267 2018-04-13  Vladimir Makarov  <vmakarov@redhat.com>
2268
2269         PR rtl-optimization/79916
2270         * config/rs6000/rs6000.c (rs6000_emit_move): Use assigned hard
2271         regs (if any) to define how to gnerate SD moves when LRA is in
2272         progress.
2273
2274 2018-04-13  Jakub Jelinek  <jakub@redhat.com>
2275
2276         PR rtl-optimization/85393
2277         * except.h (expand_dw2_landing_pad_for_region): Remove declaration.
2278         * except.c (expand_dw2_landing_pad_for_region): Make static.
2279         * bb-reorder.c (fix_up_crossing_landing_pad): In new_bb emit just
2280         a label and unconditional jump to old_bb, rather than
2281         expand_dw2_landing_pad_for_region insn(s) and jump to single_succ
2282         basic block.
2283
2284         PR rtl-optimization/85376
2285         * simplify-rtx.c (simplify_const_unary_operation): For CLZ and CTZ and
2286         zero op0, if C?Z_DEFINED_VALUE_AT_ZERO is false, return NULL_RTX
2287         instead of a specific value.
2288
2289 2018-04-13  Jan Hubicka  <hubicka@ucw.cz>
2290             Bin Cheng  <bin.cheng@arm.com>
2291
2292         PR tree-optimization/82965
2293         PR tree-optimization/83991
2294         * cfgloopanal.c (expected_loop_iterations_unbounded): Add
2295         by_profile_only parameter.
2296         * cfgloopmanip.c (scale_loop_profile): Further scale loop's profile
2297         information if the loop was predicted to iterate too many times.
2298         * cfgloop.h (expected_loop_iterations_unbounded): Update prototype
2299
2300 2018-04-13  Jan Hubicka  <hubicka@ucw.cz>
2301
2302         PR lto/71991
2303         * config/i386/i386.c (ix86_can_inline_p): Allow safe transitions for
2304         always inline.
2305
2306 2018-04-13  Martin Liska  <mliska@suse.cz>
2307             Jakub Jelinek  <jakub@redhat.com>
2308
2309         PR middle-end/81657
2310         * expr.h (enum block_op_methods): Add BLOCK_OP_NO_LIBCALL_RET.
2311         * expr.c (emit_block_move_hints): Handle BLOCK_OP_NO_LIBCALL_RET.
2312         * builtins.c (expand_builtin_memory_copy_args): Use
2313         BLOCK_OP_NO_LIBCALL_RET method for mempcpy with non-ignored target,
2314         handle dest_addr == pc_rtx.
2315
2316 2018-04-12  Segher Boessenkool  <segher@kernel.crashing.org>
2317
2318         PR target/85291
2319         * config/rs6000/rs6000.md (fix_trunc<mode>si2): Use legacy code if
2320         asked to not generate direct moves.
2321         (fix_trunc<mode>si2_stfiwx): Similar.
2322         (fix_trunc<mode>si2_internal): Similar.
2323
2324 2018-04-12  Jakub Jelinek  <jakub@redhat.com>
2325
2326         PR debug/83157
2327         * var-tracking.c (add_stores): Handle STRICT_LOW_PART SET_DEST.
2328         * cselib.c (cselib_record_sets): For STRICT_LOW_PART dest,
2329         lookup if dest in some wider mode is known to be const0_rtx and
2330         if so, record permanent equivalence for it to be ZERO_EXTEND of
2331         the narrower mode destination.
2332
2333 2018-04-12  Cesar Philippidis  <cesar@codesourcery.com>
2334
2335         * lto-streamer-out.c (output_function): Revert 259346.
2336         * omp-expand.c (expand_oacc_for): Likewise.
2337
2338 2018-04-12  Alexander Monakov  <amonakov@ispras.ru>
2339
2340         PR rtl-optimization/85354
2341         * sel-sched-ir.c (sel_init_pipelining): Move cfg_cleanup call...
2342         * sel-sched.c (sel_global_init): ... here.
2343
2344 2018-04-12  Eric Botcazou  <ebotcazou@adacore.com>
2345
2346         PR target/85238
2347         * lto-wrapper.c (debug_objcopy): Open the files in binary mode.
2348         * dwarf2out.c (dwarf2out_early_finish): Do not generate assembly in LTO
2349         mode for PE-COFF targets.
2350         * config/i386/i386-protos.h (i386_pe_asm_lto_start): Declare.
2351         (i386_pe_asm_lto_end): Likewise.
2352         * config/i386/cygming.h (TARGET_ASM_LTO_START): Define.
2353         (TARGET_ASM_LTO_END): Likewise.
2354         * config/i386/winnt.c (saved_debug_info_level): New static variable.
2355         (i386_pe_asm_lto_start): New function.
2356         (i386_pe_asm_lto_end): Likewise.
2357
2358 2018-04-12  Cesar Philippidis  <cesar@codesourcery.com>
2359             Richard Biener  <rguenther@suse.de>
2360
2361         PR middle-end/84955
2362         * lto-streamer-out.c (output_function): Fix CFG loop state before
2363         streaming out.
2364         * omp-expand.c (expand_oacc_for): Handle calls to internal
2365         functions like regular functions.
2366
2367 2018-04-12  Richard Biener  <rguenther@suse.de>
2368
2369         PR lto/85371
2370         * dwarf2out.c (init_sections_and_labels): Use debug_line_section[_label]
2371         for the early LTO debug to properly generate references to it
2372         during DIE emission.  Do not re-use that for the skeleton for
2373         split-dwarf.
2374         (dwarf2out_early_finish): Likewise.
2375
2376 2018-04-12  Jakub Jelinek  <jakub@redhat.com>
2377
2378         PR target/85328
2379         * config/i386/sse.md
2380         (<mask_codefor>avx512dq_vextract<shuffletype>64x2_1<mask_name> split,
2381         <mask_codefor>avx512f_vextract<shuffletype>32x4_1<mask_name> split,
2382         vec_extract_lo_<mode><mask_name> split, vec_extract_lo_v32hi,
2383         vec_extract_lo_v64qi): For non-AVX512VL if input is xmm16+ reg
2384         and output is a reg, avoid creating invalid lowpart subreg, but
2385         instead split into a 512-bit move.  Don't split if not AVX512VL,
2386         input is xmm16+ reg and output is a mem.
2387         (vec_extract_lo_<mode><mask_name>, vec_extract_lo_v32hi,
2388         vec_extract_lo_v64qi): Don't require split if not AVX512VL, input is
2389         xmm16+ reg and output is a mem.
2390
2391 2018-04-12  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
2392
2393         * config/s390/s390.c (s390_output_indirect_thunk_function): Check
2394         also for flag_dwarf2_cfi_asm.
2395
2396 2018-04-12  Jakub Jelinek  <jakub@redhat.com>
2397
2398         PR rtl-optimization/85342
2399         * regcprop.c (copyprop_hardreg_forward_1): Remove replaced array, use
2400         a bool scalar var inside of the loop instead.  Don't try to update
2401         recog_data.operand after failed apply_change_group.
2402
2403 2018-04-12  Tom de Vries  <tom@codesourcery.com>
2404
2405         PR target/85296
2406         * config/nvptx/nvptx.c (flexible_array_member_type_p): New function.
2407         (nvptx_assemble_decl_begin): Add undefined param.  Declare undefined
2408         array with flexible array member as array without given dimension.
2409         (nvptx_assemble_undefined_decl): Set nvptx_assemble_decl_begin call
2410         argument for undefined param to true.
2411
2412 2018-04-11  Aaron Sawdey  <acsawdey@linux.ibm.com>
2413
2414         PR target/85321
2415         * doc/invoke.texi (RS/6000 and PowerPC Options): Document options
2416         -mcall- and -mtraceback=. Remove options -mabi=spe and -mabi=no-spe
2417         from PowerPC section.
2418         * config/rs6000/sysv4.opt (mcall-): Improve help text.
2419         * config/rs6000/rs6000.opt (mblock-compare-inline-limit=): Trim
2420         help text that is too long.
2421         * config/rs6000/rs6000.opt (mblock-compare-inline-loop-limit=): Trim
2422         help text that is too long.
2423         * config/rs6000/rs6000.opt (mstring-compare-inline-limit=): Trim
2424         help text that is too long.
2425
2426 2018-04-11  Uros Bizjak  <ubizjak@gmail.com>
2427
2428         * config/alpha/alpha.md (stack_probe_internal): Rename
2429         from "probe_stack".  Update all callers.
2430
2431 2018-04-11  Alexander Monakov  <amonakov@ispras.ru>
2432
2433         PR rtl-optimization/84566
2434         * sched-deps.c (sched_analyze_insn): Check deps->readonly when invoking
2435         sched_macro_fuse_insns.
2436
2437 2018-04-11  Alexander Monakov  <amonakov@ispras.ru>
2438
2439         PR target/84301
2440         * sched-rgn.c (add_branch_dependences): Move sel_sched_p check here...
2441         (compute_block_dependences): ... from here.
2442
2443 2018-04-11  Jakub Jelinek  <jakub@redhat.com>
2444
2445         PR tree-optimization/85331
2446         * vec-perm-indices.h (vec_perm_indices::clamp): Change input type
2447         from int to HOST_WIDE_INT.
2448
2449 2018-04-11  Martin Jambor  <mjambor@suse.cz>
2450
2451         PR ipa/84149
2452         * ipa-cp.c (propagate_vals_across_pass_through): Expand comment.
2453         (cgraph_edge_brings_value_p): New parameter dest_val, check if it is
2454         not the same as the source val.
2455         (cgraph_edge_brings_value_p): New parameter.
2456         (gather_edges_for_value): Pass destination value to
2457         cgraph_edge_brings_value_p.
2458         (perhaps_add_new_callers): Likewise.
2459         (get_info_about_necessary_edges): Likewise and exclude values brought
2460         only by self-recursive edges.
2461         (create_specialized_node): Redirect only clones of self-calling edges.
2462         (+self_recursive_pass_through_p): New function.
2463         (find_more_scalar_values_for_callers_subset): Use it.
2464         (find_aggregate_values_for_callers_subset): Likewise.
2465         (known_aggs_to_agg_replacement_list): Removed.
2466         (decide_whether_version_node): Re-calculate known constants for all
2467         remaining context clones.
2468
2469 2018-04-11  Richard Biener  <rguenther@suse.de>
2470
2471         PR lto/85339
2472         * dwarf2out.c (dwarf2out_finish): Remove DW_AT_stmt_list attribute
2473         from early DWARF output.
2474         (dwarf2out_early_finish): Output line info unconditionally into
2475         early DWARF and add reference to it.
2476
2477 2018-04-11  Jakub Jelinek  <jakub@redhat.com>
2478
2479         PR target/85281
2480         * config/i386/sse.md (iptr): Add V16SFmode and V8DFmode cases.
2481         (<avx512>_vec_dup<mode><mask_name>): Use a single pattern for modes
2482         other than V2DFmode using iptr mode attribute.
2483         (<avx512>_vec_dup<mode><mask_name>): Use iptr mode attribute.
2484
2485 2018-04-11  Alexander Monakov  <amonakov@ispras.ru>
2486
2487         PR rtl-optimization/84659
2488         * sel-sched-ir.c (sel_init_pipelining): Invoke cleanup_cfg.
2489
2490 2018-04-11  Jakub Jelinek  <jakub@redhat.com>
2491
2492         PR debug/85302
2493         * dwarf2out.c (skip_loc_list_entry): Don't call size_of_locs if
2494         SIZEP is NULL.
2495         (output_loc_list): Pass address of a dummy size variable even in the
2496         locview handling loop.
2497         (index_location_lists): Add comment on why skip_loc_list_entry can't
2498         call size_of_locs.
2499
2500 2018-04-11  Thomas Preud'homme  <thomas.preudhomme@arm.com>
2501
2502         PR target/85261
2503         * config/arm/arm-builtins.c (arm_expand_builtin): Force input operand
2504         into register.
2505
2506 2018-04-10  Aaron Sawdey  <acsawdey@linux.ibm.com>
2507
2508         PR target/85321
2509         * doc/invoke.texi (RS/6000 and PowerPC Options): Document options
2510         -mblock-compare-inline-limit, -mblock-compare-inline-loop-limit,
2511         and -mstring-compare-inline-limit.
2512
2513 2018-04-10  Segher Boessenkool  <segher@kernel.crashing.org>
2514
2515         PR target/85287
2516         * gcc/config/rs6000/rs6000.md (allocate_stack): Put the residual size
2517         for stack clash protection in a register whenever we need it to be in
2518         a register.
2519
2520 2018-04-10  Segher Boessenkool  <segher@kernel.crashing.org>
2521
2522         * common/config/rs6000/rs6000-common.c (rs6000_option_init_struct):
2523         Enable -fasynchronous-unwind-tables by default if OBJECT_FORMAT_ELF.
2524
2525 2018-04-10  Segher Boessenkool  <segher@kernel.crashing.org>
2526
2527         PR target/85321
2528         * config/rs6000/rs6000.opt (mtraceback=): Show the allowed values in
2529         the help text.
2530         (mlong-double-): Ditto.
2531         * config/rs6000/sysv4.opt (msdata=): Ditto.
2532         (mtls-size=): Ditto.
2533
2534 2018-04-10  Kelvin Nilsen  <kelvin@gcc.gnu.org>
2535
2536         * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Remove
2537         erroneous entries for
2538         "vector int vec_ldl (int, long int *)", and
2539         "vector unsigned int vec_ldl (int, unsigned long int *)".
2540         Add comments and entries for
2541         "vector bool char vec_ldl (int, bool char *)",
2542         "vector bool short vec_ldl (int, bool short *)",
2543         "vector bool int vec_ldl (int, bool int *)",
2544         "vector bool long long vec_ldl (int, bool long long *)",
2545         "vector pixel vec_ldl (int, pixel *)",
2546         "vector long long vec_ldl (int, long long *)",
2547         "vector unsigned long long vec_ldl (int, unsigned long long *)".
2548         * config/rs6000/rs6000.c (rs6000_init_builtins): Initialize new
2549         type tree bool_long_long_type_node and correct definition of
2550         bool_V2DI_type_node to make reference to this new type tree.
2551         (rs6000_mangle_type): Replace erroneous reference to
2552         bool_long_type_node with bool_long_long_type_node.
2553         * config/rs6000/rs6000.h (enum rs6000_builtin_type_index): Add
2554         comments to emphasize sign distinctions for char and int types and
2555         replace RS6000_BTI_bool_long constant with
2556         RS6000_BTI_bool_long_long constant.  Also add comment to restrict
2557         use of RS6000_BTI_pixel.
2558         (bool_long_type_node): Remove this macro definition.
2559         (bool_long_long_type_node): New macro definition
2560
2561 2018-04-10  Jakub Jelinek  <jakub@redhat.com>
2562
2563         PR rtl-optimization/85300
2564         * combine.c (subst): Handle subst of CONST_SCALAR_INT_P new_rtx also
2565         into FLOAT and UNSIGNED_FLOAT like ZERO_EXTEND, return a CLOBBER if
2566         simplify_unary_operation fails.
2567
2568 2018-04-10  Martin Liska  <mliska@suse.cz>
2569
2570         * gdbhooks.py: Add pretty-printers for varpool_node, symtab_node,
2571         cgraph_edge and ipa_ref.
2572
2573 2018-04-10  Jakub Jelinek  <jakub@redhat.com>
2574
2575         PR target/85177
2576         PR target/85255
2577         * config/i386/sse.md
2578         (<extract_type>_vinsert<shuffletype><extract_suf>_mask): Fix
2579         computation of the VEC_MERGE selector from mask.
2580         (<extract_type>_vinsert<shuffletype><extract_suf>_1<mask_name>):
2581         Fix decoding of the VEC_MERGE selector into mask.
2582
2583 2018-04-10  Richard Sandiford  <richard.sandiford@linaro.org>
2584
2585         PR tree-optimization/85286
2586         * tree-vect-data-refs.c (vect_get_smallest_scalar_type):
2587
2588 2018-04-10  Richard Sandiford  <richard.sandiford@linaro.org>
2589
2590         * final.c (final_1): Set insn_last_address as well as
2591         insn_current_address.
2592
2593 2018-04-10  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
2594
2595         PR target/85173
2596         * explow.c (emit_stack_probe): Call validize_mem on memory location
2597         before passing it to gen_probe_stack.  Create address operand and
2598         legitimize it for the probe_stack_address case.
2599
2600 2018-04-09  Jan Hubicka  <jh@suse.cz>
2601
2602         PR lto/85078
2603         * ipa-devirt.c (rebuild_type_inheritance-hash): New.
2604         * ipa-utils.h (rebuild_type_inheritance-hash): Declare.
2605         * tree.c (free_lang_data_in_type): Fix handling of binfos;
2606         walk basetypes.
2607         (free_lang_data): Rebuild type inheritance graph.
2608
2609 2018-04-09  Martin Sebor  <msebor@redhat.com>
2610
2611         * invoke.texi (-finline-small-functions): Mention other optimization
2612         options.
2613         (-findirect-inlining, -fpartial-inlining): Same.
2614         (-finline-functions-called-once): Same.
2615         (-freorder-blocks-and-partition): Same.
2616
2617 2018-04-09  Jan Hubicka  <jh@suse.cz>
2618
2619         PR rtl/84058
2620         * cfgcleanup.c (try_forward_edges): Do not give up on crossing
2621         jumps; choose last target that matches the criteria (i.e.
2622         no partition changes for non-crossing jumps).
2623         * cfgrtl.c (cfg_layout_redirect_edge_and_branch): Add basic
2624         support for redirecting crossing jumps to non-crossing.
2625
2626 2018-04-09  Alexey Brodkin  <abrodkin@synopsys.com>
2627
2628         * config/arc/arc.c (arc_expand_prologue): Set stack usage info
2629         also for naked functions.
2630
2631 2018-04-09  Claudiu Zissulescu  <claziss@synopsys.com>
2632
2633         * config/arc/arc.md (add_shift): New pattern.
2634         (add_shift2): Likewise.
2635         (sub_shift): Likewise.
2636         (sub_shift_cmp0_noout): Likewise.
2637         (compare_si_ashiftsi): Likewise.
2638         (xbfu_cmp0_noout): New combine pattern.
2639         (xbfu_cmp0"): Likewise.
2640         (movsi_set_cc_insn): Place the predicable variant first.
2641         (commutative_binary_cmp0_noout): Remove clobber.
2642         (commutative_binary_cmp0): New pattern.
2643         (noncommutative_binary_cmp0): Likewise.
2644         (noncommutative_binary_cmp0_noout): Likewise.
2645         (noncommutative_binary_comparison_result_used): Removed.
2646         (rsub_cmp0): New pattern.
2647         (rsub_cmp0_noout): Likewise.
2648         (extzvsi): Changed, keep only meaningful variants.
2649         (SQH, SEZ): New iterators.
2650         (SQH_postfix): New mode attribute.
2651         (SEZ_prefix): New code attribute.
2652         (<SEZ_prefix>xt<SQH_postfix>_cmp0_noout): New instruction pattern.
2653         (<SEZ_prefix>xt<SQH_postfix>_cmp0): Likewise.
2654         * config/arc/predicates.md (cc_set_register): Use CC_REG instead
2655         of numerical value.
2656         (noncommutative_operator): Check the availability of barrel
2657         shifter option.
2658
2659 2018-04-09  Richard Biener  <rguenther@suse.de>
2660
2661         PR tree-optimization/85284
2662         * tree-ssa-loop-niter.c (number_of_iterations_exit_assumptions):
2663         Only use the niter constraining form of simple_iv when the exit
2664         is always executed.
2665
2666 2018-04-09  Tom de Vries  <tom@codesourcery.com>
2667
2668         PR target/84041
2669         * config/nvptx/nvptx.md (define_c_enum "unspecv"): Add UNSPECV_MEMBAR.
2670         (define_expand "*memory_barrier"): New define_expand.
2671         (define_insn "memory_barrier"): New insn.
2672
2673 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
2674
2675         PR rtl-optimization/80463
2676         PR rtl-optimization/83972
2677         PR rtl-optimization/83480
2678
2679         * sel-sched-ir.c (has_dependence_note_mem_dep): Take into account the
2680         correct producer for the insn.
2681         (tidy_control_flow): Fixup seqnos in case of debug insns.
2682
2683 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
2684
2685         PR rtl-optimization/83913
2686
2687         * sel-sched-ir.c (merge_expr_data): Choose the middle between two
2688         different sched-times when merging exprs.
2689
2690 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
2691
2692         PR rtl-optimization/83962
2693
2694         * sel-sched-ir.c (tidy_control_flow): Correct the order in which we call
2695         tidy_fallthru_edge and tidy_control_flow.
2696
2697 2018-04-09  Andrey Belevantsev  <abel@ispras.ru>
2698
2699         PR rtl-optimization/83530
2700
2701         * sel-sched.c (force_next_insn): New global variable.
2702         (remove_insn_for_debug): When force_next_insn is true, also leave only
2703         next insn in the ready list.
2704         (sel_sched_region): When the region wasn't scheduled, make another pass
2705         over it with force_next_insn set to 1.
2706
2707 2018-04-08  Monk Chiang  <sh.chiang04@gmail.com>
2708
2709         * config.gcc (nds32le-*-*, nds32be-*-*): Add nds32/nds32_intrinsic.h
2710         into tm_file.
2711         * config/nds32/constants.md (unspec_volatile_element): Add enum values
2712         for interrupt control.
2713         * config/nds32/nds32-intrinsic.c: Implementation of intrinsic
2714         functions for interrupt control.
2715         * config/nds32/nds32-intrinsic.md: Likewise.
2716         * config/nds32/nds32_intrinsic.h: Likewise.
2717         * config/nds32/nds32.h (nds32_builtins): Likewise.
2718
2719 2018-04-08  Chung-Ju Wu  <jasonwucj@gmail.com>
2720
2721         * config/nds32/nds32.c (nds32_init_machine_status,
2722         nds32_legitimate_index_p, nds32_legitimate_address_p): Consider
2723         strict_aligned_p field.
2724         (nds32_expand_to_rtl_hook): New function.
2725         (TARGET_EXPAND_TO_RTL_HOOK): Define.
2726         * config/nds32/nds32.h (machine_function): Add strict_aligned_p field.
2727
2728 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
2729             Chung-Ju Wu  <jasonwucj@gmail.com>
2730
2731         * config.gcc (nds32*-*-*): Check that n7 is valid to --with-cpu.
2732         * config/nds32/nds32-n7.md: New file.
2733         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_N7.
2734         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n7
2735         pipeline.
2736         * config/nds32/nds32-protos.h: More declarations for n7 pipeline.
2737         * config/nds32/nds32.md (pipeline_model): Add n7.
2738         * config/nds32/nds32.opt (mcpu): Support n7 pipeline cpus.
2739         * config/nds32/pipelines.md: Include n7 settings.
2740
2741 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
2742             Chung-Ju Wu  <jasonwucj@gmail.com>
2743
2744         * config.gcc (nds32*-*-*): Check that e8 is valid to --with-cpu.
2745         * config/nds32/nds32-e8.md: New file.
2746         * config/nds32/nds32-opts.h (nds32-cpu_type): Add CPU_E8.
2747         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for e8
2748         pipeline.
2749         * config/nds32/nds32-protos.h: More declarations for e8 pipeline.
2750         * config/nds32/nds32.md (pipeline_model): Add e8.
2751         * config/nds32/nds32.opt (mcpu): Support e8 pipeline cpus.
2752         * config/nds32/pipelines.md: Include e8 settings.
2753
2754 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
2755             Chung-Ju Wu  <jasonwucj@gmail.com>
2756
2757         * config.gcc (nds32*-*-*): Check that n6/n8/s8 are valid to --with-cpu.
2758         * config/nds32/nds32-n8.md: New file.
2759         * config/nds32/nds32-opts.h (nds32_cpu_type): Add CPU_N6 and CPU_N8.
2760         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n8
2761         pipeline.
2762         * config/nds32/nds32-protos.h: More declarations for n8 pipeline.
2763         * config/nds32/nds32-utils.c: More implementations for n8 pipeline.
2764         * config/nds32/nds32.md (pipeline_model): Add n8.
2765         * config/nds32/nds32.opt (mcpu): Support n8 pipeline cpus.
2766         * config/nds32/pipelines.md: Include n8 settings.
2767
2768 2018-04-08  Kito Cheng  <kito.cheng@gmail.com>
2769             Chung-Ju Wu  <jasonwucj@gmail.com>
2770
2771         * config.gcc (nds32*): Add nds32-utils.o into extra_objs.
2772         * config/nds32/nds32-n9-2r1w.md: New file.
2773         * config/nds32/nds32-n9-3r2w.md: New file.
2774         * config/nds32/nds32-opts.h (nds32_cpu_type, nds32_mul_type,
2775         nds32_register_ports): New or modify for cpu n9.
2776         * config/nds32/nds32-pipelines-auxiliary.c: Implementation for n9
2777         pipeline.
2778         * config/nds32/nds32-protos.h: More declarations for n9 pipeline.
2779         * config/nds32/nds32-utils.c: New file.
2780         * config/nds32/nds32.h (TARGET_PIPELINE_N9, TARGET_PIPELINE_SIMPLE,
2781         TARGET_MUL_SLOW): Define.
2782         * config/nds32/nds32.md (pipeline_model): New attribute.
2783         * config/nds32/nds32.opt (mcpu, mconfig-mul, mconfig-register-ports):
2784         New options that support cpu n9.
2785         * config/nds32/pipelines.md: Include n9 settings.
2786         * config/nds32/t-nds32 (nds32-utils.o): Add dependency.
2787
2788 2018-04-08  Chung-Ju Wu  <jasonwucj@gmail.com>
2789
2790         * config/nds32/nds32-md-auxiliary.c (output_cond_branch): Output align
2791         information if necessary.
2792         (output_cond_branch_compare_zero): Likewise.
2793         * config/nds32/nds32.c (nds32_adjust_insn_length): Consider align case.
2794         (nds32_target_alignment): Refine for alignment.
2795         * config/nds32/nds32.h (NDS32_ALIGN_P): Define.
2796         (FUNCTION_BOUNDARY): Modify.
2797         * config/nds32/nds32.md (call_internal, call_value_internal): Consider
2798         align case.
2799         * config/nds32/nds32.opt (malways-align, malign-functions): New.
2800
2801 2018-04-08  Monk Chiang  <sh.chiang04@gmail.com>
2802
2803         * config/nds32/constants.md (unspec_volatile_element): Add values for
2804         TLB operation and data prefetch.
2805         * config/nds32/nds32-intrinsic.c: Implementation of intrinsic
2806         functions for TLB operation and data prefetch.
2807         * config/nds32/nds32-intrinsic.md: Likewise.
2808         * config/nds32/nds32_intrinsic.h: Likewise.
2809         * config/nds32/nds32.c (nds32_dpref_names): Likewise.
2810         (nds32_print_operand): Likewise.
2811         * config/nds32/nds32.h (nds32_builtins): Likewise.
2812
2813 2018-04-07  Thomas Koenig  <tkoenig@gcc.gnu.org>
2814         Andrew Pinski <pinsika@gcc.gnu.org>
2815
2816         PR middle-end/82976
2817         * match.pd: Use constant_boolean_node of correct type instead of
2818         boolean_true_node or boolean_false_node for simplifying
2819         pointer comparisons to zero.
2820
2821 2018-04-07  Jakub Jelinek  <jakub@redhat.com>
2822
2823         PR tree-optimization/80021
2824         * tree.c (verify_type_variant): Make error call in verify_variant_match
2825         translatable and remove final full stop.
2826
2827 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
2828
2829         * config/nds32/constants.md (unspec_volatile_element): Add
2830         UNSPEC_VOLATILE_EH_RETURN.
2831         * config/nds32/nds32-md-auxiliary.c (nds32_output_stack_push,
2832         nds32_output_stack_pop): Support dwarf exception handling process.
2833         * config/nds32/nds32-protos.h (nds32_dynamic_chain_address): Declare.
2834         * config/nds32/nds32.c (nds32_init_machine_status): Support dwarf
2835         exception handling process.
2836         (nds32_compute_stack_frame): Likewise.
2837         (nds32_return_addr_rtx): Likewise.
2838         (nds32_initial_elimination_offset): Likewise.
2839         (nds32_expand_prologue): Likewise.
2840         (nds32_expand_epilogue): Likewise.
2841         (nds32_dynamic_chain_address): New function.
2842         * config/nds32/nds32.h (machine_function): Add fields for dwarf
2843         exception handling.
2844         (DYNAMIC_CHAIN_ADDRESS): Define.
2845         (EH_RETURN_DATA_REGNO): Define.
2846         (EH_RETURN_STACKADJ_RTX): Define.
2847         * config/nds32/nds32.md (eh_return, nds32_eh_return): Implement
2848         patterns for dwarf exception handling.
2849
2850 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
2851
2852         * config/nds32/nds32.h: Clean up obsolete macros.
2853
2854 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
2855
2856         * config/nds32/constants.md (unspec_element, unspec_volatile_element):
2857         Add enum values for particular instructions.
2858         * config/nds32/nds32-intrinsic.c: Implementation of expanding
2859         particular intrinsic functions.
2860         * config/nds32/nds32-intrinsic.md: Likewise.
2861         * config/nds32/nds32_intrinsic.h: Likewise.
2862         * config/nds32/nds32.h (nds32_builtins): Likewise.
2863         * config/nds32/nds32.md (type): Add pbsad and pbsada.
2864         (btst, ave): New patterns for particular instructions.
2865
2866 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
2867
2868         * config/nds32/constants.md (unspec_element, unspec_volatile_element):
2869         Add enum values for atomic load/store and memory sync.
2870         * config/nds32/nds32-intrinsic.c: Implementation for atomic load/store
2871         and memory sync.
2872         * config/nds32/nds32-intrinsic.md: Likewise.
2873         * config/nds32/nds32_intrinsic.h: Likewise.
2874         * config/nds32/nds32.h (nds32_builtins): Likewise.
2875
2876 2018-04-07  Jakub Jelinek  <jakub@redhat.com>
2877
2878         PR tree-optimization/85257
2879         * fold-const.c (native_encode_vector): If not all elts could fit
2880         and off is -1, return 0 rather than offset.
2881         * tree-ssa-sccvn.c (vn_reference_lookup_3): Pass
2882         (offseti - offset2) / BITS_PER_UNIT as 4th argument to
2883         native_encode_expr.  Verify len * BITS_PER_UNIT >= maxsizei.  Don't
2884         adjust buffer in native_interpret_expr call.
2885
2886 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
2887
2888         * config/nds32/constants.md (unspec_volatile_element): Add cache
2889         control enum values.
2890         * config/nds32/nds32-intrinsic.c: Add cache control expand functions.
2891         * config/nds32/nds32-intrinsic.md: Add cache control patterns.
2892         * config/nds32/nds32.c (nds32_cctl_names): New.
2893         (nds32_print_operand): Handle cache control register names.
2894         * config/nds32/nds32.h (nds32_builtins): New enum values.
2895         * config/nds32/nds32_intrinsic.h: Add cache control enum types and
2896         macros.
2897         * config/nds32/nds32.md (type): Add mmu.
2898         * config/nds32/pipelines.md (simple_insn): Add mmu.
2899
2900 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
2901
2902         * config/nds32/nds32.md (type): Remove call.
2903         * config/nds32/pipelines.md (simple_insn): Likewise.
2904
2905 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
2906
2907         * config/nds32/constants.md (unspec_volatile_element): Add
2908         UNSPEC_VOLATILE_FMFCSR, UNSPEC_VOLATILE_FMTCSR and
2909         UNSPEC_VOLATILE_FMFCFG.
2910         * config/nds32/nds32-intrinsic.c (bdesc_noarg): New builtin
2911         description for fmfcfg and fmfcsr.
2912         (bdesc_1arg): Add fmtcsr.
2913         (bdesc_2arg): Add fcpynss, fcpyss, fcpynsd and fcpysd.
2914         (nds32_expand_builtin_impl): Deal with FPU intrinsic functions.
2915         * config/nds32/nds32-intrinsic.md (unspec_fcpynsd, unspec_fcpysd,
2916         unspec_fcpynss, unspec_fcpysd, unspec_fcpyss, unspec_fmfcsr,
2917         unspec_fmfcfg): New patterns.
2918         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_FMFCFG,
2919         NDS32_BUILTIN_FMFCSR, NDS32_BUILTIN_FMTCSR, NDS32_BUILTIN_FCPYNSS,
2920         NDS32_BUILTIN_FCPYSS,NDS32_BUILTIN_FCPYNSD and NDS32_BUILTIN_FCPYSD.
2921         * config/nds32/nds32_intrinsic.h (__nds32__fcpynsd, __nds32__fcpynss,
2922         __nds32__fcpysd, __nds32__fcpyss, __nds32__fmfcsr, __nds32__fmtcsr,
2923         __nds32__fmfcfg): Define.
2924
2925 2018-04-07  Monk Chiang  <sh.chiang04@gmail.com>
2926
2927         * config/nds32/nds32.c (nds32_intrinsic_register_names): Add more
2928         intrinsic register names.
2929         * config/nds32/nds32_intrinsic.h (nds32_intrinsic_registers): Add more
2930         intrinsic register enum values and macros.
2931
2932 2018-04-07  Chung-Ju Wu  <jasonwucj@gmail.com>
2933
2934         * config/nds32/nds32.c (nds32_legitimate_index_p): Modify condition
2935         for load/store addressing form.
2936         (nds32_print_operand_address): Likewise.
2937
2938 2018-04-06  Eric Botcazou  <ebotcazou@adacore.com>
2939
2940         PR target/85196
2941         * config/sparc/sparc.c (sparc_expand_move): Deal with symbolic operands
2942         based on LABEL_REF.  Remove useless assertion.
2943         (pic_address_needs_scratch): Fix formatting.
2944         (sparc_legitimize_pic_address): Minor tweaks.
2945         (sparc_delegitimize_address): Adjust assertion accordingly.
2946         * config/sparc/sparc.md (movsi_pic_label_ref): Change label_ref_operand
2947         into symbolic_operand.
2948         (movsi_high_pic_label_ref): Likewise.
2949         (movsi_lo_sum_pic_label_ref): Likewise.
2950         (movdi_pic_label_ref): Likewise.
2951         (movdi_high_pic_label_ref): Likewise.
2952         (movdi_lo_sum_pic_label_ref): Likewise.
2953
2954 2018-04-06  Amaan Cheval  <amaan.cheval@gmail.com>
2955
2956         * config.gcc (x86_64-*-rtems*): Add rtems.h to tm_file for
2957         custom LIB_SPEC setup.
2958
2959 2018-04-06  Ruslan Bukin  <br@bsdpad.com>
2960             Kito Cheng  <kito.cheng@gmail.com>
2961
2962         * config.gcc (riscv*-*-freebsd*): Add RISC-V FreeBSD support.
2963         * config/riscv/freebsd.h: New.
2964
2965 2018-04-06  Chung-Ju Wu  <jasonwucj@gmail.com>
2966
2967         * config/nds32/nds32.c (nds32_adjust_insn_length): Refine.
2968         * config/nds32/nds32.h (ADJUST_INSN_LENGTH): Change the location in
2969         file.
2970
2971 2018-04-06  Chung-Ju Wu  <jasonwucj@gmail.com>
2972             Kito Cheng  <kito.cheng@gmail.com>
2973
2974         * config/nds32/nds32-md-auxiliary.c (nds32_output_return,
2975         nds32_output_call, nds32_symbol_binds_local_p): New functions.
2976         * config/nds32/nds32-protos.h (nds32_output_call,
2977         nds32_output_return): Declare.
2978         * config/nds32/nds32.md: Refine all the call and return patterns.
2979
2980 2018-04-06  Jakub Jelinek  <jakub@redhat.com>
2981
2982         PR debug/85252
2983         * dwarf2out.c (rtl_for_decl_init): For STRING_CST initializer only
2984         build CONST_STRING if TYPE_MAX_VALUE is non-NULL and is INTEGER_CST.
2985
2986         PR rtl-optimization/84872
2987         * cfgloopmanip.c (create_preheader): Use make_forwarder_block even if
2988         nentry == 1 when CP_FALLTHRU_PREHEADERS and single_entry is
2989         EDGE_CROSSING edge.
2990
2991 2018-04-06  Tamar Christina  <tamar.christina@arm.com>
2992
2993         * expr.c (copy_blkmode_to_reg): Revert 254862.
2994         * doc/sourcebuild.texi (word_mode_no_slow_unalign): Likewise.
2995
2996 2018-04-06  Richard Biener  <rguenther@suse.de>
2997
2998         PR middle-end/85244
2999         * tree-dfa.c (get_ref_base_and_extent): Reset seen_variable_array_ref
3000         after seeing a component reference with an adjacent field.  Treat
3001         refs to arrays at struct end of external decls similar to
3002         refs to unconstrained commons.
3003
3004 2018-04-06  Jakub Jelinek  <jakub@redhat.com>
3005
3006         PR sanitizer/85213
3007         * fold-const.c (twoval_comparison_p): Remove SAVE_P argument and don't
3008         look through SAVE_EXPRs with non-side-effects argument.  Adjust
3009         recursive calls.
3010         (fold_comparison): Adjust twoval_comparison_p caller, don't handle
3011         save_p here.
3012
3013 2018-04-06  Richard Biener  <rguenther@suse.de>
3014
3015         PR middle-end/85180
3016         * alias.c (find_base_term): New wrapper around find_base_term
3017         unwinding CSELIB_VAL_PTR changes.
3018         (find_base_term): Do not restore CSELIB_VAL_PTR during the
3019         recursion.
3020
3021 2018-04-06  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
3022
3023         * config/s390/s390.c (s390_z10_optimize_cmp): Expand dedicated NOP
3024         instructions.
3025         * config/s390/s390.md (UNSPECV_NOP_LR_0, UNSPECV_NOP_LR_1): New
3026         constant definitions.
3027         ("nop"): lr 0,0 -> nopr r0
3028         ("nop_lr0", "nop_lr1"): New insn definitions.
3029
3030 2018-04-06  Chung-Ju Wu  <jasonwucj@gmail.com>
3031
3032         * config/nds32/nds32.md (*stack_push, *stack_pop): Use
3033         NDS32_V3PUSH_AVAILABLE_P macro.
3034
3035 2018-04-06  Monk Chiang  <sh.chiang04@gmail.com>
3036             Chung-Ju Wu  <jasonwucj@gmail.com>
3037
3038         * config.gcc (nds32*-*-*): Add v2j v3f v3s checking.
3039         (nds32*-*-*): Add float and fpu_config into supported_defaults.
3040         * common/config/nds32/nds32-common.c (TARGET_DEFAULT_TARGET_FLAGS):
3041         Include TARGET_DEFAULT_FPU_ISA and TARGET_DEFAULT_FPU_FMA.
3042         * config/nds32/constants.md (unspec_element): Add UNSPEC_COPYSIGN,
3043         UNSPEC_FCPYNSD, UNSPEC_FCPYNSS, UNSPEC_FCPYSD and UNSPEC_FCPYSS.
3044         * config/nds32/constraints.md: New constraints and checking for hard
3045         float configuration.
3046         * config/nds32/iterators.md: New mode iterator and attribute for hard
3047         float configuration.
3048         * config/nds32/nds32-doubleword.md: Use hard float alternatives and
3049         patterns.
3050         * config/nds32/nds32-fpu.md: New file.
3051         * config/nds32/nds32-md-auxiliary.c: New functions and checkings to
3052         deal with hard float code generation.
3053         * config/nds32/nds32-opts.h (nds32_arch_type): Add ARCH_V3F and
3054         ARCH_V3S.
3055         (abi_type, float_reg_number): New enum type.
3056         * config/nds32/nds32-predicates.c: New predicates for hard float.
3057         * config/nds32/nds32-protos.h: Declare functions for hard float.
3058         * config/nds32/nds32.c: Implementation for hard float configuration.
3059         * config/nds32/nds32.h: Definitions for hard float configuration.
3060         * config/nds32/nds32.md: Include hard float machine description and
3061         modify patterns for hard float configuration.
3062         * config/nds32/nds32.opt: New options for hard float configuration.
3063         * config/nds32/predicates.md: New predicates for hard float
3064         configuration.
3065
3066 2018-04-06  Kuan-Lin Chen  <kuanlinchentw@gmail.com>
3067
3068         * common/config/nds32/nds32-common.c
3069         (nds32_option_optimization_table): Enable -mreleax-hint by default.
3070
3071 2018-04-05  Jakub Jelinek  <jakub@redhat.com>
3072
3073         PR middle-end/85195
3074         * match.pd (BIT_FIELD_REF CONSTRUCTOR@0 @1 @2): Use view_convert around
3075         CONSTRUCTOR_ELT (ctor, ...)->value.
3076
3077 2018-04-05  Uros Bizjak  <ubizjak@gmail.com>
3078
3079         PR target/85193
3080         * config/i386/i386.md (define_attr "memory"): Handle rotate1 type.
3081
3082 2018-04-05  Tom de Vries  <tom@codesourcery.com>
3083
3084         PR target/85204
3085         * config/nvptx/nvptx.c (nvptx_single): Fix neutering of bb with only
3086         cond jump.
3087
3088 2018-04-05  Shiva Chen  <shiva0217@gmail.com>
3089             Kito Cheng  <kito.cheng@gmail.com>
3090
3091         * config/nds32/constraints.md (U33): Fine-tune checking condition.
3092         * config/nds32/nds32-md-auxiliary.c (nds32_mem_format): Ditto.
3093         * config/nds32/nds32.h (nds32_16bit_address_type): Add
3094         ADDRESS_POST_MODIFY_LO_REG_IMM3U.
3095
3096 2018-04-05  Shiva Chen  <shiva0217@gmail.com>
3097             Kito Cheng  <kito.cheng@gmail.com>
3098
3099         * config/nds32/constraints.md (Ufe): New memory constraint.
3100         * config/nds32/nds32-md-auxiliary.c (nds32_mem_format,
3101         nds32_output_16bit_load): Consider r8 register for lwi45.fe format.
3102         * config/nds32/nds32.c (nds32_print_operand): Output lwi45.fe
3103         operands.
3104         * config/nds32/nds32.h (nds32_16bit_address_type): Add ADDRESS_R8_IMM7U.
3105         * config/nds32/nds32.md (*mov<mode>): Adjust pattern.
3106
3107 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
3108
3109         * config/nds32/nds32.md: Use optimize_size in the condition for
3110         alu-shift instructions.
3111
3112 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
3113
3114         * config/nds32/nds32.md (divsi4, udivsi4): New patterns.
3115
3116 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
3117
3118         * config/nds32/nds32.md (negsi2): Refine pattern.
3119
3120 2018-04-05  Kito Cheng  <kito.cheng@gmail.com>
3121             Chung-Ju Wu  <jasonwucj@gmail.com>
3122
3123         * config/nds32/iterators.md (shift_rotate): New code iterator.
3124         (shift): New code attribute.
3125         * config/nds32/nds32-md-auxiliary.c (nds32_expand_constant): New.
3126         * config/nds32/nds32-protos.h (nds32_expand_constant): Declare.
3127         * config/nds32/nds32.c (nds32_print_operand): Deal with more cases.
3128         * config/nds32/nds32.md (addsi3, *add_srli): Refine implementation for
3129         bit-wise operations.
3130         (andsi3, *andsi3): Ditto.
3131         (iorsi3, *iorsi3, *or_slli, *or_srli): Ditto.
3132         (xorsi3, *xorsi3, *xor_slli, *xor_srli): Ditto.
3133         (<shift>si3, *ashlsi3, *ashrsi3, *lshrsi3, *rotrsi3): Ditto.
3134         * config/nds32/predicates.md (nds32_rimm5u_operand, nds32_and_operand,
3135         nds32_ior_operand, nds32_xor_operand): New predicates.
3136
3137 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
3138
3139         * config/nds32/nds32.md (add<mode>3, sub<mode>3): Rename to ...
3140         (addsi3, subsi3): ... this.
3141
3142 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
3143
3144         * config/nds32/nds32.md (*sub_srli, *and_slli): Fine-tune predicator.
3145
3146 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
3147
3148         * config/nds32/nds32.md: Adjust indention.
3149
3150 2018-04-05  Kito Cheng  <kito.cheng@gmail.com>
3151
3152         * config/nds32/nds32.md (feature): New attribute.
3153
3154 2018-04-05  Chung-Ju Wu  <jasonwucj@gmail.com>
3155
3156         * config/nds32/nds32.md (subtype): New attribute.
3157
3158 2018-04-04  Thomas Preud'homme  <thomas.preudhomme@arm.com>
3159
3160         PR target/85203
3161         * config/arm/arm-builtins.c (arm_expand_builtin): Change
3162         expansion to perform a bitwise AND of the argument followed by a
3163         boolean negation of the result.
3164
3165 2018-04-04  Peter Bergner  <bergner@vnet.ibm.com>
3166
3167         PR rtl-optimization/84878
3168         * ddg.c (add_cross_iteration_register_deps): Use DF_REF_BB to determine
3169         the basic block.  Assert the use reference is not artificial and that
3170         it has an associated insn.
3171
3172 2018-04-04  Michael Matz  <matz@suse.de>
3173
3174         * builtins.c (compute_objsize): Pass correct operand
3175         to array_at_struct_end_p.
3176
3177 2018-04-04  Richard Biener  <rguenther@suse.de>
3178
3179         PR lto/85176
3180         * dwarf2out.c (dwarf2out_register_external_die): Peel namespaces
3181         from contexts for DINFO_LEVEL_TERSE and below.
3182
3183 2018-04-04  Kito Cheng  <kito.cheng@gmail.com>
3184
3185         * config/nds32/nds32-doubleword.md (move_<mode>): Require
3186         resiter_operand condition.
3187         * config/nds32/nds32.md (*move<mode>): Ditto.
3188
3189 2018-04-04  Kito Cheng  <kito.cheng@gmail.com>
3190             Monk Chiang  <sh.chiang04@gmail.com>
3191
3192         * config/nds32/nds32.md (movmisalign<mode>): New pattern.
3193
3194 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
3195
3196         * config/nds32/nds32.md (movqi, movhi): Merge into mov<mode>.
3197
3198 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
3199             Kito Cheng  <kito.cheng@gmail.com>
3200
3201         * config/nds32/nds32-md-auxiliary.c (nds32_inverse_cond_code,
3202         nds32_cond_code_str, output_cond_branch,
3203         output_cond_branch_compare_zero, nds32_expand_cbranch,
3204         nds32_expand_cstore, nds32_expand_movcc,
3205         nds32_output_cbranchsi4_equality_zero,
3206         nds32_output_cbranchsi4_equality_reg,
3207         nds32_output_cbranchsi4_equality_reg_or_const_int,
3208         nds32_output_cbranchsi4_greater_less_zero: New functions.
3209         * config/nds32/nds32-protos.h (nds32_expand_cbranch,
3210         nds32_expand_cstore, nds32_expand_movcc,
3211         nds32_output_cbranchsi4_equality_zero,
3212         nds32_output_cbranchsi4_equality_reg,
3213         nds32_output_cbranchsi4_equality_reg_or_const_int,
3214         nds32_output_cbranchsi4_greater_less_zero): Declare.
3215         * config/nds32/predicates.md (nds32_movecc_comparison_operator,
3216         nds32_rimm11s_operand): New predicates.
3217         * config/nds32/nds32.h (nds32_expand_result_type): New enum type.
3218         * config/nds32/nds32.md: Rewrite all the branch and conditional move
3219         patterns.
3220
3221 2018-04-04  Kito Cheng  <kito.cheng@gmail.com>
3222
3223         * config/nds32/nds32-doubleword.md: Refine all the instruction type.
3224         * config/nds32/nds32.md: Ditto.
3225         * config/nds32/pipelines.md: Ditto.
3226
3227 2018-04-04  Richard Biener  <rguenther@suse.de>
3228
3229         PR tree-optimization/85168
3230         * tree-ssa-sccvn.c (vn_reference_maybe_forwprop_address): Avoid
3231         propagating abnormals.
3232
3233 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
3234
3235         * config/nds32/nds32.md (enabled): Use yes/no for this attribute.
3236
3237 2018-04-04  Chung-Ju Wu  <jasonwucj@gmail.com>
3238             Kito Cheng  <kito.cheng@gmail.com>
3239
3240         * config/nds32/nds32-md-auxiliary.c (nds32_long_call_p): New function.
3241         * config/nds32/nds32-protos.h (nds32_long_call_p): Declare.
3242         * config/nds32/nds32.c (nds32_function_ok_for_sibcall): New function.
3243         (TARGET_FUNCTION_OK_FOR_SIBCALL): Define.
3244         * config/nds32/nds32.md (sibcall_internal): New.
3245         (sibcall_register): Remove.
3246         (sibcall_immediate): Remove.
3247         (sibcall_value_internal): New.
3248         (sibcall_value_register): Remove.
3249         (sibcall_value_immediate): Remove.
3250         * config/nds32/predicates.md (nds32_general_register_operand): New.
3251         (nds32_call_address_operand): New.
3252
3253 2018-04-03  Jakub Jelinek  <jakub@redhat.com>
3254
3255         PR rtl-optimization/85167
3256         * shrink-wrap.c (move_insn_for_shrink_wrap): Don't set bb_uses and
3257         bb_defs if *split_p, instead preinitialize it to NULL.
3258
3259         PR tree-optimization/85156
3260         * builtins.c (fold_builtin_expect): Use save_expr on arg1 to avoid
3261         evaluating the argument multiple times.
3262
3263 2018-04-03  Bill Schmidt  <wschmidt@linux.ibm.com>
3264
3265         * config/rs6000/emmintrin.h (_mm_cvtpd_epi32): Use __vector rather
3266         than vector.
3267         (_mm_cvtpd_ps): Likewise.
3268         (_mm_cvttpd_epi32): Likewise.
3269         * config/rs6000/mmintrin.h (_mm_unpacklo_pi8): Likewise.
3270         * config/rs6000/xmmintrin.h: For strict-ANSI C++ or C11, undefine
3271         vector, pixel, and bool following altivec.h include.
3272
3273 2018-04-03  Martin Sebor  <msebor@redhat.com>
3274
3275         * doc/extend.texi (Common Function Attributes): Clarify.
3276         (const attribute): Likewise.
3277         (pure attribute): Likewise.
3278
3279 2018-04-03  Jakub Jelinek  <jakub@redhat.com>
3280
3281         PR target/85169
3282         * config/i386/i386.c (ix86_expand_vector_set): Use
3283         HOST_WIDE_INT_1U << elt instead of 1 << elt.  Formatting fix.
3284
3285 2018-04-03  Uros Bizjak  <ubizjak@gmail.com>
3286
3287         * config/i386/i386.c (emit_i387_cw_initialization): Always use logic
3288         instructions when changing rounding bits to preserve precision bits
3289         in the x87 control word.
3290
3291 2018-04-03  Martin Liska  <mliska@suse.cz>
3292
3293         PR tree-optimization/82491
3294         * rtl.h (strip_offset_and_add): Replace += suboffset with
3295         poly_uint64 () + suboffset.
3296
3297 2018-03-29  Martin Liska  <mliska@suse.cz>
3298             Martin Jambor  <mjambor@suse.cz>
3299
3300         PR ipa/84947
3301         * ipa-cp.c (propagate_bits_across_jump_function): Bail out if
3302         param_type is not an integral or pointer type.
3303
3304 2018-04-03  Richard Biener  <rguenther@suse.de>
3305
3306         * sese.h (recompute_all_dominators): Remove.
3307
3308 2018-04-02  Martin Sebor  <msebor@redhat.com>
3309
3310         * doc/invoke.texi (-Wrestrict): Fix typos.
3311
3312 2018-04-02  Jim Wilson  <jimw@sifive.com>
3313
3314         * config/riscv/riscv.h (SHIFT_COUNT_TRUNCATED): Set to zero.
3315         * config/riscv/riscv.md (<optab>si3): Use QImode shift count.
3316         (<optab>di3, <optab>si3_extend): Likewise.
3317         (<optab>si3_mask, <optab>si3_mask_1): New.
3318         (<optab>di3_mask, <optab>di3_mask_1): New.
3319         (<optab>si3_extend_mask, <optab>si3_extend_mask_1): New.
3320         (lshrsi3_zero_extend_1): Use VOIDmode shift count.
3321         * config/riscv/sync.md (atomic_test_and_set): Emit QImode shift count.
3322
3323 2018-04-02  Gerald Pfeifer  <gerald@pfeifer.com>
3324
3325         * doc/cpp.texi (Variadic Macros): Fix line continuation in an
3326         example.
3327
3328 2018-04-02  Chung-Ju Wu  <jasonwucj@gmail.com>
3329
3330         * config/nds32/nds32.c (TARGET_CANONICALIZE_COMPARISON): Define.
3331         (nds32_canonicalize_comparison): New function.
3332
3333 2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
3334             Kito Cheng  <kito.cheng@gmail.com>
3335             Kuan-Lin Chen  <kuanlinchentw@gmail.com>
3336
3337         * config.gcc (nds32): Add nds32-relax-opt.o into extra_objs.
3338         * config/nds32/constants.md (unspec_volatile_element): Add
3339         UNSPEC_VOLATILE_RELAX_GROUP.
3340         * config/nds32/nds32-relax-opt.c: New file.
3341         * config/nds32/nds32-predicates.c
3342         (nds32_symbol_load_store_p): New function.
3343         * config/nds32/nds32-protos.h
3344         (nds32_symbol_load_store_p): Declare function.
3345         (make_pass_nds32_relax_opt): Declare new rtl pass function.
3346         * config/nds32/nds32.c
3347         (nds32_register_pass): New function to register pass.
3348         (nds32_register_passes): New function to register passes.
3349         * config/nds32/nds32.md (relax_group): New pattern.
3350         * config/nds32/nds32.opt (mrelax-hint): New option.
3351         * config/nds32/t-nds32 (nds32-relax-opt.o): New dependency.
3352
3353 2018-04-01  Kito Cheng  <kito.cheng@gmail.com>
3354
3355         * config/nds32/t-nds32: Modify files dependency.
3356
3357 2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
3358
3359         * config/nds32/nds32.h (FUNCTION_PROFILER): Output newline character.
3360         (PROFILE_HOOK): Define its implementation.
3361
3362 2018-04-01  Chung-Ju Wu  <jasonwucj@gmail.com>
3363
3364         * config/nds32/nds32.h (WCHAR_TYPE, WCHAR_TYPE_SIZE): Use unsigned int
3365         type and 32-bit size.
3366
3367 2018-04-01  Jakub Jelinek  <jakub@redhat.com>
3368
3369         PR middle-end/85090
3370         * config/i386/sse.md (V): Add V64QI and V32HI for TARGET_AVX512F.
3371         (V_128_256): New mode iterator.
3372         (*avx512dq_vextract<shuffletype>64x2_1 splitter): New define_split.
3373         (*avx512f_vextract<shuffletype>32x4_1 splitter): Likewise.
3374         (xop_pcmov_<mode><avxsizesuffix>): Use V_128_256 mode iterator instead
3375         of V.
3376         * config/i386/i386.c (ix86_expand_vector_set): Improve V32HImode and
3377         V64QImode expansion for !TARGET_AVX512BW && TARGET_AVX512F.
3378
3379 2018-03-31  Segher Boessenkool  <segher@kernel.crashing.org>
3380
3381         PR target/83315
3382         * config/rs6000/xmmintrin.h (_mm_set_ps, _mm_max_ps): Handle (quiet)
3383         NaN inputs correctly.
3384
3385 2018-03-30  Peter Bergner  <bergner@vnet.ibm.com>
3386
3387         PR target/80546
3388         * config/rs6000/vsx.md (??r): New mode attribute.
3389         (*vsx_mov<mode>_64bit): Use it.
3390         (*vsx_mov<mode>_32bit): Likewise.
3391
3392 2018-03-30  Martin Sebor  <msebor@redhat.com>
3393
3394         PR tree-optimization/84818
3395         * builtins.c (check_access): Use warning_n.
3396
3397 2018-03-30  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
3398
3399         PR target/83822
3400         * config/rs6000/rs6000-string.c (expand_compare_loop): Fix redundant
3401         condition.
3402         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Fix redundant
3403         condition.
3404
3405 2018-03-30  Julia Koval  <julia.koval@intel.com>
3406
3407         PR target/84413
3408         * x86-tune.def (movx, partial_reg_dependency): Enable for
3409         m_SKYLAKE_AVX512.
3410
3411 2018-03-29  Vladimir Makarov  <vmakarov@redhat.com>
3412
3413         PR inline-asm/84985
3414         * lra-constraints.c (process_alt_operands): Move setting
3415         this_alternative_matches below.
3416
3417 2018-03-29  Martin Liska  <mliska@suse.cz>
3418
3419         PR lto/84995.
3420         * doc/invoke.texi: Document how LTO works with debug info.
3421         Describe auto-load support of binutils.  Mention 'x86-64'
3422         as valid option value of -march option.
3423
3424 2018-03-29  Jakub Jelinek  <jakub@redhat.com>
3425
3426         * config/i386/sse.md (<avx512>_blendm<mode>): Use <sseintprefix>.
3427
3428         PR c/85094
3429         * fold-const.c (operand_equal_p): Handle DEBUG_BEGIN_STMT.
3430         For STATEMENT_LIST, pass down OEP_LEXICOGRAPHIC and maybe
3431         OEP_NO_HASH_CHECK for recursive call, to avoid exponential
3432         checking.
3433
3434 2018-03-28  Peter Bergner  <bergner@vnet.ibm.com>
3435
3436         PR target/84912
3437         * config/rs6000/rs6000.h (RS6000_BTM_POWERPC64): New define.
3438         (RS6000_BTM_COMMON): Add RS6000_BTM_POWERPC64.
3439         * config/rs6000/rs6000.c (rs6000_builtin_mask_calculate): Add support
3440         for RS6000_BTM_POWERPC64.
3441         (rs6000_invalid_builtin): Add handling for RS6000_BTM_POWERPC64
3442         (rs6000_builtin_mask_names): Add RS6000_BTM_POWERPC64.
3443         * config/rs6000/rs6000-builtin.def (BU_P7_POWERPC64_MISC_2): New macro
3444         definition.
3445         (DIVDE): Use it.
3446         (DIVDEU): Likewise.
3447
3448 2018-03-28 Carl Love  <cel@us.ibm.com>
3449
3450         Revert
3451         2017-09-27  Carl Love  <cel@us.ibm.com>
3452
3453         * config/rs6000/rs6000-builtin.def (BU_FP_1MISC_1): Add define macro.
3454         (FCTID, FCTIW): Add BU_FP_MISC_1 macro expansion for builtins.
3455         * config/rs6000/rs6000.md (lrintsfsi2): Add define_insn for the
3456         fctiw instruction.
3457
3458 2018-03-28  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
3459
3460         * config/rs6000/xmmintrin.h (_mm_max_pi16): Use __vector __bool
3461         instead of __vector bool.
3462         (_mm_max_pu8): Likewise.
3463         (_mm_min_pi16): Likewise.
3464
3465 2018-03-28  Peter Bergner  <bergner@vnet.ibm.com>
3466
3467         PR target/84912
3468         * config/rs6000/rs6000-builtin.def (DIVWEO): Delete macro expansion.
3469         (DIVWEUO): Likewise.
3470         (DIVDEO): Likewise.
3471         (DIVDEUO): Likewise.
3472         * config/rs6000/rs6000.c (builtin_function_type): Remove support for
3473         DIVWEUO and DIVDEUO.
3474         * config/rs6000/rs6000.md (UNSPEC_DIVEO, UNSPEC_DIVEUO): Delete unspecs.
3475         (UNSPEC_DIV_EXTEND): Remove deleted unspecs.
3476         (div_extend): Likewise.
3477         * doc/extend.texi (__builtin_divweo): Remove documentation for deleted
3478         builtin function.
3479         (__builtin_divweuo): Likewise.
3480         (__builtin_divdeo): Likewise.
3481         (__builtin_divdeuo): Likewise.
3482
3483 2018-03-28  Jakub Jelinek  <jakub@redhat.com>
3484
3485         PR target/85095
3486         * config/i386/i386.md (*add<mode>3_carry_0, *addsi3_carry_zext_0,
3487         *sub<mode>3_carry_0, *subsi3_carry_zext_0): New patterns.
3488
3489         PR tree-optimization/82004
3490         * gimple-match-head.c (optimize_pow_to_exp): New function.
3491         * match.pd (pow(C,x) -> exp(log(C)*x)): Wrap with #if GIMPLE.
3492         Don't fold to exp if optimize_pow_to_exp is false.
3493
3494 2018-03-28  Martin Liska  <mliska@suse.cz>
3495
3496         PR other/84819
3497         * calls.c (initialize_argument_information): Fix trailing space.
3498         * common.opt: Fix typo and provide better explanation for
3499         -fsanitize-coverage option.
3500         * config/i386/i386.opt: Fix typo.
3501
3502 2018-03-28  Jakub Jelinek  <jakub@redhat.com>
3503             Martin Liska  <mliska@suse.cz>
3504
3505         PR sanitizer/85081
3506         * gimplify.c (asan_poison_variable): Don't do the check for
3507         gimplify_omp_ctxp here.
3508         (gimplify_decl_expr): Do it here.
3509         (gimplify_target_expr): Likewise.
3510
3511 2018-03-28  Martin Liska  <mliska@suse.cz>
3512
3513         PR target/84988
3514         * config/i386/i386.c (ix86_function_arg_advance): Do not call
3515         chkp_type_bounds_count if MPX is not enabled.
3516
3517 2018-03-27  Chung-Ju Wu  <jasonwucj@gmail.com>
3518
3519         * config/nds32/nds32.h (BRANCH_COST): Adjust cost.
3520
3521 2018-03-27  Michael Meissner  <meissner@linux.vnet.ibm.com>
3522
3523         PR target/84914
3524         * config/rs6000/rs6000.c (create_complex_muldiv): New helper
3525         function to create the function decl for complex long double
3526         multiply and divide for -mabi=ieeelongdouble.
3527         (init_float128_ieee): Call it.
3528
3529 2018-03-27  H.J. Lu  <hongjiu.lu@intel.com>
3530
3531         PR target/85044
3532         * config/i386/i386.c (ix86_trampoline_init): Insert ENDBR for
3533         -fcf-protection=branch -mibt.
3534         * config/i386/i386.h (TRAMPOLINE_SIZE): Increased by 4 bytes.
3535
3536 2018-03-27  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
3537
3538         PR target/81863
3539         * config/arm/arm.c (arm_valid_symbolic_address): Handle arm_word_relocations
3540
3541 2018-03-27  Cesar Philippidis  <cesar@codesourcery.com>
3542
3543         PR target/85056
3544         * config/nvptx/nvptx.c (nvptx_assemble_decl_begin): Add '[]' to
3545         extern array declarations.
3546
3547 2018-03-27  Richard Biener  <rguenther@suse.de>
3548
3549         PR middle-end/84067
3550         * match.pd ((A * C) +- (B * C) -> (A+-B) * C): Guard with
3551         explicit single_use checks.
3552
3553 2018-03-27  Richard Biener  <rguenther@suse.de>
3554
3555         PR tree-optimization/85082
3556         * tree-ssa-sccvn.c (vn_reference_lookup_or_insert_for_pieces):
3557         Valueize the VUSE.
3558
3559 2018-03-27  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
3560
3561         * config.gcc (aarch64*-*-linux*): New TARGET_DEFAULT_ASYNC_UNWIND_TABLES
3562         * common/config/aarch64/aarch64-common.c (aarch64_optimization_table[]):
3563         Turn on fasynchronous-unwind-tables and funwind-tables.
3564
3565 2018-03-26  Uros Bizjak  <ubizjak@gmail.com>
3566
3567         PR target/85073
3568         * config/i386/i386.md (*bmi_blsr_<mode>_cmp): New insn pattern.
3569         (*bmi_blsr_<mode>_ccz): Ditto.
3570
3571 2018-03-26  Tom de Vries  <tom@codesourcery.com>
3572
3573         PR tree-optimization/85063
3574         * omp-general.c (offloading_function_p): New function.  Factor out
3575         of ...
3576         * omp-offload.c (pass_omp_target_link::gate): ... here.
3577         * omp-general.h (offloading_function_p): Declare.
3578         * tree-switch-conversion.c (build_one_array): Mark CSWTCH.x variable
3579         with attribute omp declare target for offloading functions.
3580
3581 2018-03-24  Richard Sandiford  <richard.sandiford@linaro.org>
3582
3583         PR tree-optimization/84005
3584         * tree-data-ref.h (get_base_for_alignment): Declare.
3585         * tree-data-ref.c (get_base_for_alignment_1): New function.
3586         (get_base_for_alignment): Likewise.
3587         * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Use
3588         get_base_for_alignment to find a suitable base object, instead
3589         of always using drb->base_address.
3590
3591 2018-03-23  Jakub Jelinek  <jakub@redhat.com>
3592
3593         PR inline-asm/85022
3594         * emit-rtl.c (init_emit_regs): Indicate that VOIDmode MEMs don't have
3595         known size by default.
3596
3597 2018-03-23  Vladimir Makarov  <vmakarov@redhat.com>
3598
3599         PR inline-asm/85030
3600         * lra-constraints.c (process_alt_operands): Don't match BLKmode
3601         and non BLKmode operands.
3602
3603 2018-03-23  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
3604
3605         PR target/85026
3606         * config/arm/arm.md (unaligned_loadhis): Remove first alternative.
3607         Clean up attributes.
3608
3609 2018-03-23  Richard Biener  <rguenther@suse.de>
3610
3611         PR debug/85020
3612         * dwarf2out.c (rtl_for_decl_location): Do not generate RTL early when
3613         we are going to emit early debug for LTO.
3614
3615 2018-03-23  Jakub Jelinek  <jakub@redhat.com>
3616
3617         PR inline-asm/85034
3618         * function.c (match_asm_constraints_1): Don't optimize if input
3619         doesn't satisfy general_operand predicate for output's mode.
3620
3621         PR inline-asm/85022
3622         * alias.c (write_dependence_p): Don't require for x_canonicalized
3623         non-VOIDmode if x has VOIDmode.
3624
3625         PR sanitizer/85029
3626         * sanopt.c (maybe_optimize_ubsan_ptr_ifn): If DECL_REGISTER (base),
3627         just don't try to optimize it rather than assert it never happens.
3628
3629 2018-03-22  Kelvin Nilsen  <kelvin@gcc.gnu.org>
3630
3631         * config/rs6000/rs6000-builtin.def: Remove various BU_ALTIVEC_X
3632         macro expansions for definition of ST_INTERNAL_<mode> and
3633         LD_INTERNAL_<mode> builtins.
3634         * config/rs6000/rs6000-protos.h (rs6000_address_for_altivec):
3635         Remove prototype.
3636         * config/rs6000/rs6000.c (altivec_expand_ld_builtin): Delete this
3637         function.
3638         (altivec_expand_st_builtin): Likewise.
3639         (altivec_expand_builtin): Remove calls to deleted functions.
3640         (rs6000_address_for_altivec): Delete this function.
3641         * config/rs6000/vector.md: Remove expands for
3642         vector_altivec_load_<mode> and vector_altivec_store_<mode>.
3643
3644 2018-03-22  Sudakshina Das  <sudi.das@arm.com>
3645
3646         PR target/84826
3647         * config/arm/arm.h (machine_function): Add static_chain_stack_bytes.
3648         * config/arm/arm.c (arm_compute_static_chain_stack_bytes): Avoid
3649         re-computing once computed.
3650         (arm_expand_prologue): Compute machine->static_chain_stack_bytes.
3651         (arm_init_machine_status): Initialize
3652         machine->static_chain_stack_bytes.
3653
3654 2018-03-22  Kelvin Nilsen  <kelvin@gcc.gnu.org>
3655
3656         PR target/84760
3657         * doc/extend.texi: Add four new prototypes for vec_ld.
3658         * config/rs6000/rs6000-builtin.def (LVX_V1TI): Reorder symbol
3659         definitions for more logical presentation.
3660         * config/rs6000/rs6000-c.c: (altivec_overloaded_builtins): Add
3661         entries for V1TI variants of __builtin_altivec_ld builtin.
3662         * config/rs6000/rs6000.c: (altivec_expand_lv_builtin): Add test and
3663         handling of V1TI variant of LVX icode pattern.
3664         (altivec_expand_builtin): Add case for ALTIVEC_BUILTIN_LVX_V1TI.
3665         (rs6000_gimple_fold_builtin): Likewise.
3666         (altivec_init_builtins): Add code to define
3667         __builtin_altivec_lvx_v1ti function.
3668
3669 2018-03-22  Jakub Jelinek  <jakub@redhat.com>
3670
3671         PR inline-asm/84941
3672         * function.c (match_asm_constraints_1): Don't do the optimization
3673         if input isn't a REG, SUBREG, MEM or constant.
3674
3675 2018-03-22  Tom de Vries  <tom@codesourcery.com>
3676
3677         PR tree-optimization/84956
3678         * tree-ssa-tail-merge.c (find_clusters_1): Skip bbs with
3679         bb_has_abnormal_pred.
3680
3681 2018-03-22  Jakub Jelinek  <jakub@redhat.com>
3682
3683         PR sanitizer/85018
3684         * dwarf2asm.c (dw2_output_indirect_constant_1): Set
3685         DECL_INITIAL (decl) to decl at the end.
3686         * varasm.c (use_blocks_for_decl_p): Revert the 2018-03-20 change,
3687         adjust the comment.
3688
3689 2018-03-21  Joseph Myers  <joseph@codesourcery.com>
3690
3691         * doc/extend.texi (__builtin_tgmath): Document when complex
3692         integer types are treated as _Complex _Float64.
3693
3694 2018-03-21  Tom de Vries  <tom@codesourcery.com>
3695
3696         * doc/extend.texi (__builtin_extend_pointer): Remove pasto.
3697
3698 2018-03-21  Jakub Jelinek  <jakub@redhat.com>
3699
3700         PR tree-optimization/84960
3701         * tree-cfg.c (remove_bb): Don't move forced labels into bb->prev_bb
3702         if it is ENTRY block, move them into single succ of ENTRY in that case.
3703
3704 2018-03-21  Richard Sandiford  <richard.sandiford@linaro.org>
3705
3706         PR tree-optimization/84811
3707         * poly-int.h (poly_span_traits): Remove the T3 parameter and
3708         promote HOST_WIDE_INT T2 - T1 results to unsigned HOST_WIDE_INT.
3709         (maybe_in_range_p, known_in_range_p, ranges_known_overlap_p):
3710         (known_subrange_p): Update accordingly.  Cast each value involved
3711         in the size comparison, rather than casting the result of the
3712         subtraction.
3713
3714 2018-03-21  Jakub Jelinek  <jakub@redhat.com>
3715
3716         PR tree-optimization/84982
3717         * gimple-ssa-store-merging.c (invert_op): Handle boolean inversion
3718         by flipping the least significant bit rather than all bits from
3719         bitpos to bitpos + bitsize - 1.
3720
3721 2018-03-21  Nathan Sidwell  <nathan@acm.org>
3722
3723         * doc/extend.texi (Deprecated Features): Remove mention of
3724         long-deleted deprecations.
3725
3726 2018-03-21  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3727
3728         PR jit/84288
3729         * configure.ac (gcc_cv_ld_soname) <*-*-solaris2*>: Set.
3730         * configure: Regenerate.
3731
3732 2018-03-21  Tom de Vries  <tom@codesourcery.com>
3733
3734         PR tree-optimization/83126
3735         * tree-parloops.c (num_phis): New function.
3736         (gen_parallel_loop): Detect and handle canonicalize_loop_ivs failure.
3737
3738 2018-03-21  Nathan Sidwell  <nathan@acm.org>
3739
3740         * doc/extend.texi (Deprecated Features): Update deprecated flags,
3741         mention anon-struct/union members and trailing attributes.
3742
3743 2018-03-21  Bin Cheng  <bin.cheng@arm.com>
3744
3745         PR tree-optimization/84969
3746         * tree-loop-distribution.c (fuse_memset_builtins): Don't reorder
3747         builtin memset partitions if they set different rhs values.
3748
3749 2018-03-21  Jakub Jelinek  <jakub@redhat.com>
3750
3751         PR rtl-optimization/84989
3752         * simplify-rtx.c (simplify_unary_operation_1): Don't try to simplify
3753         VEC_DUPLICATE with scalar result mode.
3754
3755 2018-03-21  Martin Liska  <mliska@suse.cz>
3756
3757         PR ipa/84963
3758         * ipa-icf.c (sem_item_optimizer::fixup_points_to_sets): Remove
3759         not intended return statement.
3760
3761 2018-03-21  Martin Liska  <mliska@suse.cz>
3762
3763         PR target/84988
3764         * tree-chkp.c (CHKP_ARRAY_MAX_CHECK_STEPS): Define a new macro.
3765         (chkp_find_bound_slots_1): Limit number of iterations.
3766
3767 2018-03-20  David H. Gutteridge  <dhgutteridge@sympatico.ca>
3768
3769         PR target/84838
3770         * Minor grammar fixes for x86 options.
3771
3772 2018-03-20  Jakub Jelinek  <jakub@redhat.com>
3773
3774         PR debug/84875
3775         * dce.c (delete_unmarked_insns): Don't remove frame related noop moves
3776         holding REG_CFA_RESTORE notes, instead turn them into a USE.
3777
3778 2018-03-20  Peter Bergner  <bergner@vnet.ibm.com>
3779
3780         PR target/83789
3781         * config/rs6000/altivec.md (altivec_lvx_<mode>_2op): Delete define_insn.
3782         (altivec_lvx_<mode>_1op): Likewise.
3783         (altivec_stvx_<mode>_2op): Likewise.
3784         (altivec_stvx_<mode>_1op): Likewise.
3785         (altivec_lvx_<VM2:mode>): New define_expand.
3786         (altivec_stvx_<VM2:mode>): Likewise.
3787         (altivec_lvx_<VM2:mode>_2op_<P:mptrsize>): New define_insn.
3788         (altivec_lvx_<VM2:mode>_1op_<P:mptrsize>): Likewise.
3789         (altivec_stvx_<VM2:mode>_2op_<P:mptrsize>): Likewise.
3790         (altivec_stvx_<VM2:mode>_1op_<P:mptrsize>): Likewise.
3791         * config/rs6000/rs6000-p8swap.c (rs6000_gen_stvx): Use new expanders.
3792         (rs6000_gen_lvx): Likewise.
3793         * config/rs6000/rs6000.c (altivec_expand_lv_builtin): Likewise.
3794         (altivec_expand_stv_builtin): Likewise.
3795         (altivec_expand_builtin): Likewise.
3796         * config/rs6000/vector.md: Likewise.
3797
3798 2018-03-20  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
3799
3800         PR target/82518
3801         * config/arm/arm.c (arm_array_mode_supported_p): Return false for
3802         BYTES_BIG_ENDIAN.
3803
3804 2018-03-20  Richard Biener  <rguenther@suse.de>
3805
3806         PR target/84986
3807         * config/i386/i386.c (ix86_add_stmt_cost): Only cost
3808         sign-conversions as zero, fall back to standard scalar_stmt
3809         cost for the rest.
3810
3811 2018-03-20  Martin Liska  <mliska@suse.cz>
3812
3813         PR ipa/84825
3814         * predict.c (rebuild_frequencies): Handle case when we have
3815         PROFILE_ABSENT, but flag_guess_branch_prob is false.
3816
3817 2018-03-20  Jakub Jelinek  <jakub@redhat.com>
3818
3819         PR target/84990
3820         * dwarf2asm.c (dw2_output_indirect_constant_1): Temporarily turn off
3821         flag_section_anchors.
3822         * varasm.c (use_blocks_for_decl_p): Remove hack for
3823         dw2_force_const_mem.
3824
3825         PR target/84845
3826         * config/aarch64/aarch64.md (*aarch64_reg_<mode>3_neg_mask2): Rename
3827         to ...
3828         (*aarch64_<optab>_reg_<mode>3_neg_mask2): ... this.  If pseudos can't
3829         be created, use lowpart_subreg of operands[0] rather than operands[0]
3830         itself.
3831         (*aarch64_reg_<mode>3_minus_mask): Rename to ...
3832         (*aarch64_ashl_reg_<mode>3_minus_mask): ... this.
3833         (*aarch64_<optab>_reg_di3_mask2): Use const_int_operand predicate
3834         and n constraint instead of aarch64_shift_imm_di and Usd.
3835         (*aarch64_reg_<optab>_minus<mode>3): Rename to ...
3836         (*aarch64_<optab>_reg_minus<mode>3): ... this.
3837
3838 2018-03-20  Sudakshina Das  <sudi.das@arm.com>
3839
3840         PR target/82989
3841         * config/arm/neon.md (ashldi3_neon): Update ?s for constraints
3842         to favor GPR over NEON registers.
3843         (<shift>di3_neon): Likewise.
3844
3845 2018-03-20  Tom de Vries  <tom@codesourcery.com>
3846
3847         PR target/84952
3848         * config/nvptx/nvptx.c (nvptx_single): Don't neuter bar.sync.
3849         (nvptx_process_pars): Emit bar.sync asap and alap.
3850
3851 2018-03-20  Tom de Vries  <tom@codesourcery.com>
3852
3853         PR target/84954
3854         * config/nvptx/nvptx.c (prevent_branch_around_nothing): Also update
3855         seen_label if seen_label is already set.
3856
3857 2018-03-20  Jakub Jelinek  <jakub@redhat.com>
3858
3859         PR target/84945
3860         * config/i386/i386.c (fold_builtin_cpu): For features above 31
3861         use __cpu_features2 variable instead of __cpu_model.__cpu_features[0].
3862         Use 1U instead of 1.  Formatting fixes.
3863
3864         PR c/84953
3865         * builtins.c (fold_builtin_strpbrk): For strpbrk(x, "") use type
3866         instead of TREE_TYPE (s1) for the return value.
3867
3868 2018-03-19  Jakub Jelinek  <jakub@redhat.com>
3869
3870         PR tree-optimization/84946
3871         * gimple-ssa-store-merging.c (mem_valid_for_store_merging): Compute
3872         bitsize + bitsize in poly_uint64 rather than poly_int64.
3873
3874         PR sanitizer/78651
3875         * dwarf2asm.c: Include fold-const.c.
3876         (dw2_output_indirect_constant_1): Set DECL_INITIAL (decl) to ADDR_EXPR
3877         of decl rather than decl itself.
3878
3879         PR rtl-optimization/84643
3880         * memmodel.h (enum memmodel): Add MEMMODEL_MAX enumerator.
3881
3882 2018-03-19  Maxim Ostapenko  <m.ostapenko@samsung.com>
3883
3884         PR sanitizer/78651
3885         * dwarf2asm.c (dw2_output_indirect_constant_1): Disable ASan before
3886         calling assemble_variable.
3887
3888 2018-03-19  Sudakshina Das  <sudi.das@arm.com>
3889
3890         PR target/81647
3891         * config/aarch64/aarch64-simd.md (vec_cmp<mode><v_int_equiv>): Modify
3892         instructions for UNLT, UNLE, UNGT, UNGE, UNEQ, UNORDERED and ORDERED.
3893
3894 2018-03-19  Jim Wilson  <jimw@sifive.com>
3895
3896         PR bootstrap/84856
3897         * config/riscv/riscv.c (riscv_function_arg_boundary): Use
3898         PREFERRED_STACK_BOUNDARY instead of STACK_BOUNDARY.
3899         (riscv_first_stack_step): Likewise.
3900         (riscv_option_override): Use STACK_BOUNDARY instead of
3901         MIN_STACK_BOUNDARY.
3902         * config/riscv/riscv.h (STACK_BOUNDARY): Renamed from
3903         MIN_STACK_BOUNDARY.
3904         (BIGGEST_ALIGNMENT): Set to 128.
3905         (PREFERRED_STACK_BOUNDARY): Renamed from STACK_BOUNDARY.
3906         (RISCV_STACK_ALIGN): Use PREFERRED_STACK_BOUNDARY instead of
3907         STACK_BOUNDARY.
3908
3909 2018-03-19  Richard Biener  <rguenther@suse.de>
3910
3911         PR tree-optimization/84933
3912         * tree-vrp.c (set_and_canonicalize_value_range): Treat out-of-bound
3913         values as -INF/INF when canonicalizing an ANTI_RANGE to a RANGE.
3914
3915 2018-03-19  Richard Biener  <rguenther@suse.de>
3916
3917         PR tree-optimization/84859
3918         * tree-ssa-phiopt.c (single_trailing_store_in_bb): New function.
3919         (cond_if_else_store_replacement): Perform sinking operation on
3920         single-store BBs regardless of MAX_STORES_TO_SINK setting.
3921         Generalize what a BB with a single eligible store is.
3922
3923 2018-03-19  Richard Biener  <rguenther@suse.de>
3924
3925         PR tree-optimization/84929
3926         * tree-data-ref.c (analyze_siv_subscript_cst_affine): Guard
3927         chrec_is_positive against non-chrec arg.
3928
3929 2018-03-19  Tamar Christina  <tamar.christina@arm.com>
3930
3931         PR target/84711
3932         * config/arm/arm.c (arm_can_change_mode_class): revert r258554.
3933
3934 2018-03-18  Martin Liska  <mliska@suse.cz>
3935
3936         PR rtl-optimization/84635
3937         * regrename.c (build_def_use): Use matches_mode only when
3938         matches >= 0.
3939
3940 2018-03-18  Richard Sandiford  <richard.sandiford@linaro.org>
3941
3942         PR tree-optimization/84913
3943         * tree-vect-loop.c (vectorizable_reduction): Don't try to
3944         vectorize chains of COND_EXPRs.
3945
3946 2018-03-18  Chung-Ju Wu  <jasonwucj@gmail.com>
3947
3948         * config/nds32/nds32.h (MAX_REGS_PER_ADDRESS): Fix the value.
3949
3950 2018-03-18  Chung-Ju Wu  <jasonwucj@gmail.com>
3951
3952         * config/nds32/nds32.h (LOGICAL_OP_NON_SHORT_CIRCUIT): Define.
3953
3954 2018-03-18  Chung-Ju Wu  <jasonwucj@gmail.com>
3955
3956         * config/nds32/nds32.h (CLZ_DEFINED_VALUE_AT_ZERO): Define.
3957
3958 2018-03-17  Chung-Ju Wu  <jasonwucj@gmail.com>
3959             Kito Cheng  <kito.cheng@gmail.com>
3960
3961         * config/nds32/nds32-protos.h (nds32_adjust_reg_alloc_order): Declare.
3962         * config/nds32/nds32.c (nds32_reg_alloc_order_for_speed): New array.
3963         (nds32_adjust_reg_alloc_order): New function.
3964         * config/nds32/nds32.h (ADJUST_REG_ALLOC_ORDER): Define.
3965
3966 2018-03-17  Kito Cheng  <kito.cheng@gmail.com>
3967
3968         * config/nds32/nds32.c (nds32_asm_output_mi_thunk,
3969         nds32_print_operand, nds32_print_operand_address): Use
3970         HOST_WIDE_INT_PRINT_DEC instead.
3971
3972 2018-03-17  Chung-Ju Wu  <jasonwucj@gmail.com>
3973
3974         * config/nds32/nds32.c (nds32_register_priority): Modify cost.
3975
3976 2018-03-17  Jakub Jelinek  <jakub@redhat.com>
3977
3978         PR target/84902
3979         * config/i386/i386.c (initial_ix86_tune_features,
3980         initial_ix86_arch_features): Use unsigned HOST_WIDE_INT rather than
3981         unsigned long long.
3982         (set_ix86_tune_features): Change ix86_tune_mask from unsigned int
3983         to unsigned HOST_WIDE_INT, initialize to HOST_WIDE_INT_1U << ix86_tune
3984         rather than 1u << ix86_tune.  Formatting fix.
3985         (ix86_option_override_internal): Change ix86_arch_mask from
3986         unsigned int to unsigned HOST_WIDE_INT, initialize to
3987         HOST_WIDE_INT_1U << ix86_arch rather than 1u << ix86_arch.
3988         (ix86_function_specific_restore): Likewise.
3989
3990 2018-03-16  Jakub Jelinek  <jakub@redhat.com>
3991
3992         PR target/84899
3993         * postreload.c (reload_combine_recognize_pattern): Perform
3994         INTVAL addition in unsigned HOST_WIDE_INT type to avoid UB and
3995         truncate_int_for_mode the result for the destination's mode.
3996
3997         PR c/84909
3998         * hsa-gen.c (mem_type_for_type): Fix comment typo.
3999         * tree-vect-loop-manip.c (vect_create_cond_for_niters_checks):
4000         Likewise.
4001         * gimple-ssa-warn-restrict.c (builtin_memref::set_base_and_offset):
4002         Likewise.
4003
4004 2018-03-16  Vladimir Makarov  <vmakarov@redhat.com>
4005
4006         PR target/84876
4007         * lra-assigns.c (lra_split_hard_reg_for): Don't use
4008         regno_allocno_class_array and sorted_pseudos.
4009         * lra-constraints.c (spill_hard_reg_in_range): Ignore hard regs in
4010         insns where regno is used.
4011
4012 2018-03-16  Martin Liska  <mliska@suse.cz>
4013
4014         PR ipa/84833
4015         * multiple_target.c (create_dispatcher_calls): Redirect
4016         reference in the symbol table.
4017
4018 2018-03-16  Martin Liska  <mliska@suse.cz>
4019
4020         PR ipa/84722
4021         * multiple_target.c (create_dispatcher_calls): Redirect also
4022         an alias.
4023
4024 2018-03-16  Jakub Jelinek  <jakub@redhat.com>
4025
4026         PR c++/79937
4027         PR c++/82410
4028         * tree.h (TARGET_EXPR_NO_ELIDE): Define.
4029         * gimplify.c (gimplify_modify_expr_rhs): Don't elide TARGET_EXPRs with
4030         TARGET_EXPR_NO_ELIDE flag set unless *expr_p is INIT_EXPR.
4031
4032 2018-03-16  Julia Koval  <julia.koval@intel.com>
4033
4034         * doc/invoke.texi (Skylake Server): Add CLWB.
4035         Cannonlake): Remove CLWB.
4036
4037 2018-03-16  Jakub Jelinek  <jakub@redhat.com>
4038
4039         PR tree-optimization/84841
4040         * tree-ssa-reassoc.c (INTEGER_CONST_TYPE): Change to 1 << 4 from
4041         1 << 3.
4042         (FLOAT_ONE_CONST_TYPE): Define.
4043         (constant_type): Return FLOAT_ONE_CONST_TYPE for -1.0 and 1.0.
4044         (sort_by_operand_rank): Put entries with higher constant_type last
4045         rather than first to match comments.
4046
4047 2018-03-15  Sandra Loosemore  <sandra@codesourcery.com>
4048
4049         * config/nios2/nios2.md (movsi_internal): Fix thinko in
4050         split predicate.
4051
4052 2018-03-15  Jakub Jelinek  <jakub@redhat.com>
4053
4054         PR c++/79085
4055         * calls.c (expand_call): For TREE_ADDRESSABLE rettype ignore alignment
4056         check and use address of target always.
4057
4058 2018-03-15  H.J. Lu  <hongjiu.lu@intel.com>
4059
4060         PR target/84574
4061         * config/i386/i386.c (indirect_thunk_needed): Update comments.
4062         (indirect_thunk_bnd_needed): Likewise.
4063         (indirect_thunks_used): Likewise.
4064         (indirect_thunks_bnd_used): Likewise.
4065         (indirect_return_needed): New.
4066         (indirect_return_bnd_needed): Likewise.
4067         (output_indirect_thunk_function): Add a bool argument for
4068         function return.
4069         (output_indirect_thunk_function): Don't generate alias for
4070         function return thunk.
4071         (ix86_code_end): Call output_indirect_thunk_function to generate
4072         function return thunks.
4073         (ix86_output_function_return): Set indirect_return_bnd_needed
4074         and indirect_return_needed instead of indirect_thunk_bnd_needed
4075         and indirect_thunk_needed.
4076
4077 2018-03-15  Olga Makhotina  <olga.makhotina@intel.com>
4078
4079         * config/i386/sgxintrin.h (_enclv_u32): New intrinsic.
4080         (__enclv_bc, __enclv_cd, __enclv_generic): New definitions.
4081         (ERDINFO, ETRACKC, ELDBC, ELDUC): New leaves.
4082
4083 2018-03-15  David Malcolm  <dmalcolm@redhat.com>
4084             Paul Hua <paul.hua.gm@gmail.com>
4085
4086         PR c/84852
4087         * gcc.dg/fixits-pr84852-1.c: Fix filename in dg-regexp.
4088
4089 2018-03-15  Segher Boessenkool  <segher@kernel.crashing.org>
4090
4091         * config/rs6000/rs6000.c (abi_v4_pass_in_fpr): Add back the
4092         TARGET_DOUBLE_FLOAT and TARGET_SINGLE_FLOAT conditions on the DFmode
4093         resp. SFmode cases.
4094
4095 2018-03-15  Tamar Christina  <tamar.christina@arm.com>
4096
4097         PR target/84711
4098         * config/arm/arm.c (arm_can_change_mode_class): Use GET_MODE_UNIT_SIZE
4099         instead of GET_MODE_SIZE when comparing Units.
4100
4101 2018-03-15  Vladimir Mezentsev  <vladimir.mezentsev@oracle.com>
4102
4103         PR target/68256
4104         * varasm.c (hash_section): Return an unchangeble hash value
4105         * config/aarch64/aarch64.c (aarch64_use_blocks_for_constant_p):
4106         Return !aarch64_can_use_per_function_literal_pools_p ().
4107
4108 2018-03-15  Jakub Jelinek  <jakub@redhat.com>
4109
4110         PR target/84860
4111         * optabs.c (emit_conditional_move): Pass address of cmode's copy
4112         rather than address of cmode as last argument to prepare_cmp_insn.
4113
4114 2018-03-15  Julia Koval  <julia.koval@intel.com>
4115
4116         * config/i386/i386.c (F_AVX512VBMI2, F_GFNI, F_VPCLMULQDQ,
4117         F_AVX512VNNI, F_AVX512BITALG): New.
4118
4119 2018-03-14  John David Anglin  <danglin@gcc.gnu.org>
4120
4121         PR target/83451
4122         * config/pa/pa.c (pa_emit_move_sequence):  Always emit secondary reload
4123         insn for floating-point loads and stores.
4124
4125 2018-03-14  Carl Love  <cel@us.ibm.com>
4126
4127         * config/rs6000/rs6000-c.c: Add macro definitions for
4128         ALTIVEC_BUILTIN_VEC_PERMXOR.
4129         * config/rs6000/rs6000.h: Add #define for vec_permxor builtin.
4130         * config/rs6000/rs6000-builtin.def: Add macro expansions for VPERMXOR.
4131         * config/rs6000/altivec.md (altivec_vpermxor): New define expand.
4132         * config/rs6000/rs6000-p8swap.c (rtx_is_swappable_p): Add case
4133         UNSPEC_VPERMXOR.
4134         * config/doc/extend.texi: Add prototypes for vec_permxor.
4135
4136 2018-03-14  David Malcolm  <dmalcolm@redhat.com>
4137
4138         PR c/84852
4139         * diagnostic-show-locus.c (class layout_point): Convert m_line
4140         from int to linenum_type.
4141         (line_span::comparator): Use linenum "compare" function when
4142         comparing line numbers.
4143         (test_line_span): New function.
4144         (layout_range::contains_point): Convert param "row" from int to
4145         linenum_type.
4146         (layout_range::intersects_line_p): Likewise.
4147         (layout::will_show_line_p): Likewise.
4148         (layout::print_source_line): Likewise.
4149         (layout::should_print_annotation_line_p): Likewise.
4150         (layout::print_annotation_line): Likewise.
4151         (layout::print_leading_fixits): Likewise.
4152         (layout::annotation_line_showed_range_p): Likewise.
4153         (struct line_corrections): Likewise for field m_row.
4154         (line_corrections::line_corrections): Likewise for param "row".
4155         (layout::print_trailing_fixits): Likewise.
4156         (layout::get_state_at_point): Likewise.
4157         (layout::get_x_bound_for_row): Likewise.
4158         (layout::print_line): Likewise.
4159         (diagnostic_show_locus): Likewise for locals "last_line" and
4160         "row".
4161         (selftest::diagnostic_show_locus_c_tests): Call test_line_span.
4162         * input.c (selftest::test_linenum_comparisons): New function.
4163         (selftest::input_c_tests): Call it.
4164         * selftest.c (selftest::test_assertions): Test ASSERT_GT,
4165         ASSERT_GT_AT, ASSERT_LT, and ASSERT_LT_AT.
4166         * selftest.h (ASSERT_GT): New macro.
4167         (ASSERT_GT_AT): New macro.
4168         (ASSERT_LT): New macro.
4169         (ASSERT_LT_AT): New macro.
4170
4171 2018-03-14  Segher Boessenkool  <segher@kernel.crashing.org>
4172
4173         PR rtl-optimization/84780
4174         * combine.c (distribute_links): Don't make a link based on pc_rtx.
4175
4176 2018-03-14  Martin Liska  <mliska@suse.cz>
4177
4178         * tree.c (record_node_allocation_statistics): Use
4179         get_stats_node_kind.
4180         (get_stats_node_kind): New function extracted from
4181         record_node_allocation_statistics.
4182         (free_node): Use get_stats_node_kind.
4183
4184 2018-03-14  Richard Biener  <rguenther@suse.de>
4185
4186         * tree-ssa-pre.c (compute_antic_aux): Remove code that asserts
4187         that the value-set of ANTIC_IN doesn't grow.
4188
4189         Revert
4190         * tree-ssa-pre.c (struct bb_bitmap_sets): Add visited_with_visited_succs
4191         member.
4192         (BB_VISITED_WITH_VISITED_SUCCS): New define.
4193         (compute_antic): Initialize BB_VISITED_WITH_VISITED_SUCCS.
4194
4195 2018-03-14  Julia Koval  <julia.koval@intel.com>
4196
4197         * config.gcc (icelake-client, icelake-server): New.
4198         (icelake): Remove.
4199         * config/i386/i386.c (initial_ix86_tune_features): Extend to 64 bit.
4200         (initial_ix86_arch_features): Ditto.
4201         (PTA_SKYLAKE): Add SGX.
4202         (PTA_ICELAKE): Remove.
4203         (PTA_ICELAKE_CLIENT): New.
4204         (PTA_ICELAKE_SERVER): New.
4205         (ix86_option_override_internal): Split up icelake on icelake client and
4206         icelake server.
4207         (get_builtin_code_for_version): Ditto.
4208         (fold_builtin_cpu): Ditto.
4209         * config/i386/driver-i386.c (config/i386/driver-i386.c): Ditto.
4210         * config/i386/i386-c.c (ix86_target_macros_internal): Ditto
4211         * config/i386/i386.h (processor_type): Ditto.
4212         * doc/invoke.texi: Ditto.
4213
4214 2018-03-14  Jakub Jelinek  <jakub@redhat.com>
4215
4216         PR sanitizer/83392
4217         * sanopt.c (maybe_optimize_ubsan_ptr_ifn): Handle also
4218         INTEGER_CST offset, add it together with bitpos / 8 and
4219         sign extend based on POINTER_SIZE.
4220
4221         PR target/84844
4222         Revert
4223         2017-04-20  Uros Bizjak  <ubizjak@gmail.com>
4224
4225         PR target/78090
4226         * config/i386/constraints.md (Yc): New register constraint.
4227         * config/i386/i386.md (*float<SWI48:mode><MODEF:mode>2_mixed):
4228         Use Yc constraint for alternative 2 of operand 0.  Remove
4229         preferred_for_speed attribute.
4230
4231 2018-03-14  Richard Biener  <rguenther@suse.de>
4232
4233         PR tree-optimization/84830
4234         * tree-ssa-pre.c (compute_antic_aux): Intersect the new ANTIC_IN
4235         with the old one to avoid oscillations.
4236
4237 2018-03-13  Vladimir Makarov  <vmakarov@redhat.com>
4238
4239         PR target/83712
4240         * lra-assigns.c (find_all_spills_for): Ignore uninteresting
4241         pseudos.
4242         (assign_by_spills): Return a flag of reload assignment failure.
4243         Do not process the reload assignment failures.  Do not spill other
4244         reload pseudos if they has the same reg class.  Update n if
4245         necessary.
4246         (lra_assign): Add a return arg.  Set up from the result of
4247         assign_by_spills call.
4248         (find_reload_regno_insns, lra_split_hard_reg_for): New functions.
4249         * lra-constraints.c (split_reg): Add a new arg.  Use it instead of
4250         usage_insns if it is not NULL.
4251         (spill_hard_reg_in_range): New function.
4252         (split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
4253         * lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
4254         function prototypes.
4255         (lra_assign): Change prototype.
4256         * lra.c (lra): Add code to deal with fails by splitting hard reg
4257         live ranges.
4258
4259 2018-03-01  Palmer Dabbelt  <palmer@sifive.com>
4260
4261         * config/riscv/riscv.opt (mrelax): New option.
4262         * config/riscv/riscv.c (riscv_file_start): Emit ".option
4263         "norelax" when riscv_mrelax is disabled.
4264         * doc/invoke.texi (RISC-V): Document "-mrelax" and "-mno-relax".
4265
4266 2018-03-13  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
4267
4268         PR target/84743
4269         * config/rs6000/rs6000.c (rs6000_reassociation_width): Disable parallel
4270         reassociation for int modes.
4271
4272 2018-03-13  Richard Sandiford  <richard.sandiford@linaro.org>
4273
4274         * tree-vect-loop-manip.c (vect_maybe_permute_loop_masks):
4275         Reverse the choice between VEC_UNPACK_LO_EXPR and VEC_UNPACK_HI_EXPR
4276         for big-endian.
4277         * config/aarch64/iterators.md (hi_lanes_optab): New int attribute.
4278         * config/aarch64/aarch64-sve.md
4279         (*aarch64_sve_<perm_insn><perm_hilo><mode>): Rename to...
4280         (aarch64_sve_<perm_insn><perm_hilo><mode>): ...this.
4281         (*extend<mode><Vwide>2): Rename to...
4282         (aarch64_sve_extend<mode><Vwide>2): ...this.
4283         (vec_unpack<su>_<perm_hilo>_<mode>): Turn into a define_expand,
4284         renaming the old pattern to...
4285         (aarch64_sve_punpk<perm_hilo>_<mode>): ...this.  Only define
4286         unsigned packs.
4287         (vec_unpack<su>_<perm_hilo>_<SVE_BHSI:mode>): Turn into a
4288         define_expand, renaming the old pattern to...
4289         (aarch64_sve_<su>unpk<perm_hilo>_<SVE_BHSI:mode>): ...this.
4290         (*vec_unpacku_<perm_hilo>_<mode>_no_convert): Delete.
4291         (vec_unpacks_<perm_hilo>_<mode>): Take BYTES_BIG_ENDIAN into
4292         account when deciding which SVE instruction the optab should use.
4293         (vec_unpack<su_optab>_float_<perm_hilo>_vnx4si): Likewise.
4294
4295 2018-03-13  Richard Sandiford  <richard.sandiford@linaro.org>
4296
4297         * config/aarch64/aarch64.md (V4_REGNUM, V8_REGNUM, V12_REGNUM)
4298         (V20_REGNUM, V24_REGNUM, V28_REGNUM, P1_REGNUM, P2_REGNUM, P3_REGNUM)
4299         (P4_REGNUM, P5_REGNUM, P6_REGNUM, P8_REGNUM, P9_REGNUM, P10_REGNUM)
4300         (P11_REGNUM, P12_REGNUM, P13_REGNUM, P14_REGNUM): New define_constants.
4301         (tlsdesc_small_<mode>): Turn a define_expand and use
4302         tlsdesc_small_sve_<mode> for SVE.  Rename original define_insn to...
4303         (tlsdesc_small_advsimd_<mode>): ...this.
4304         (tlsdesc_small_sve_<mode>): New pattern.
4305
4306 2018-03-13  Richard Sandiford  <richard.sandiford@linaro.org>
4307
4308         * config/aarch64/iterators.md (UNSPEC_SMUL_HIGHPART)
4309         (UNSPEC_UMUL_HIGHPART): New constants.
4310         (MUL_HIGHPART): New int iteraor.
4311         (su): Handle UNSPEC_SMUL_HIGHPART and UNSPEC_UMUL_HIGHPART.
4312         * config/aarch64/aarch64-sve.md (<su>mul<mode>3_highpart): New
4313         define_expand.
4314         (*<su>mul<mode>3_highpart): New define_insn.
4315
4316 2018-03-13  Eric Botcazou  <ebotcazou@adacore.com>
4317
4318         PR lto/84805
4319         * ipa-devirt.c (odr_subtypes_equivalent_p): Do not get the ODR type of
4320         incomplete types.
4321
4322 2018-03-13  Martin Liska  <mliska@suse.cz>
4323
4324         PR ipa/84658.
4325         * (sem_item_optimizer::sem_item_optimizer): Initialize new
4326         vector.
4327         (sem_item_optimizer::~sem_item_optimizer): Release it.
4328         (sem_item_optimizer::merge_classes): Register variable aliases.
4329         (sem_item_optimizer::fixup_pt_set): New function.
4330         (sem_item_optimizer::fixup_points_to_sets): Likewise.
4331         * ipa-icf.h: Declare new variables and functions.
4332
4333 2018-03-13  Jakub Jelinek  <jakub@redhat.com>
4334
4335         PR middle-end/84834
4336         * match.pd ((A & C) != 0 ? D : 0): Use INTEGER_CST@2 instead of
4337         integer_pow2p@2 and test integer_pow2p in condition.
4338         (A < 0 ? C : 0): Similarly for @1.
4339
4340         PR middle-end/84831
4341         * stmt.c (parse_output_constraint): If the CONSTRAINT_LEN (*p, p)
4342         characters starting at p contain '\0' character, don't look beyond
4343         that.
4344
4345         PR target/84827
4346         * config/i386/i386.md (round<mode>2): For 387 fancy math, disable
4347         pattern if -ftrapping-math -fno-fp-int-builtin-inexact.
4348
4349         PR target/84828
4350         * reg-stack.c (change_stack): Change update_end var from int to
4351         rtx_insn *, if non-NULL don't update just BB_END (current_block), but
4352         also call set_block_for_insn on the newly added insns and rescan.
4353
4354         PR target/84786
4355         * config/i386/sse.md (sse2_loadhpd): Use Yv constraint rather than v
4356         on the last operand.
4357
4358         PR c++/84704
4359         * tree.c (stabilize_reference_1): Return save_expr (e) for
4360         STATEMENT_LIST even if it doesn't have side-effects.
4361
4362 2018-03-12  Jonathan Wakely  <jwakely@redhat.com>
4363
4364         * doc/invoke.texi (-mclflushopt): Fix spelling of option.
4365
4366 2018-03-12  Renlin Li  <renlin.li@arm.com>
4367
4368         * config/aarch64/aarch64.md (movhf_aarch64): Fix mode argument to
4369         aarch64_output_scalar_simd_mov_immediate.
4370
4371 2018-03-12  Martin Sebor  <msebor@redhat.com>
4372
4373         PR tree-optimization/83456
4374         * gimple-fold.c (gimple_fold_builtin_memory_op): Avoid warning
4375         for perfectly overlapping calls to memcpy.
4376         (gimple_fold_builtin_memory_chk): Same.
4377         (gimple_fold_builtin_strcpy): Handle no-warning.
4378         (gimple_fold_builtin_stxcpy_chk): Same.
4379         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Handle no-warning.
4380
4381 2018-03-12  Segher Boessenkool  <segher@kernel.crashing.org>
4382
4383         * config/rs6000/rs6000.c (abi_v4_pass_in_fpr): Add bool "named"
4384         parameter.  Use it for SFmode.
4385         (rs6000_function_arg_advance_1): Adjust.
4386         (rs6000_function_arg): Adjust.
4387         (rs6000_gimplify_va_arg): Pass false for that new parameter.
4388
4389 2018-03-12  Segher Boessenkool  <segher@kernel.crashing.org>
4390
4391         PR rtl-optimization/84169
4392         PR rtl-optimization/84780
4393         * combine.c (can_combine_p): Check for a 2-insn combination whether
4394         the destination register is used between the two insns, too.
4395
4396 2018-03-12  Richard Biener  <rguenther@suse.de>
4397
4398         PR tree-optimization/84803
4399         * tree-if-conv.c (ifcvt_memrefs_wont_trap): Don't do anything
4400         for refs DR analysis didn't process.
4401
4402 2018-03-12  Richard Biener  <rguenther@suse.de>
4403
4404         PR tree-optimization/84777
4405         * tree-ssa-loop-ch.c (should_duplicate_loop_header_p): For
4406         force-vectorize loops ignore whether we are optimizing for size.
4407
4408 2018-03-12  Chung-Ju Wu  <jasonwucj@gmail.com>
4409
4410         * config/nds32/nds32.c (nds32_md_asm_adjust): New function.
4411         (TARGET_MD_ASM_ADJUST): Define.
4412
4413 2018-03-12  Monk Chiang  <sh.chiang04@gmail.com>
4414             Kito Cheng  <kito.cheng@gmail.com>
4415             Chung-Ju Wu  <jasonwucj@gmail.com>
4416
4417         * config/nds32/nds32.c (nds32_compute_stack_frame,
4418         nds32_emit_stack_push_multiple, nds32_emit_stack_pop_multiple,
4419         nds32_emit_stack_v3push, nds32_emit_stack_v3pop,
4420         nds32_emit_adjust_frame, nds32_expand_prologue, nds32_expand_epilogue,
4421         nds32_expand_prologue_v3push, nds32_expand_epilogue_v3pop): Refine.
4422         * config/nds32/nds32.h (NDS32_FIRST_CALLEE_SAVE_GPR_REGNUM,
4423         NDS32_LAST_CALLEE_SAVE_GPR_REGNUM, NDS32_V3PUSH_AVAILABLE_P): New.
4424         * config/nds32/nds32.md (prologue, epilogue): Use macro
4425         NDS32_V3PUSH_AVAILABLE_P to do checking.
4426
4427 2018-03-11  Jakub Jelinek  <jakub@redhat.com>
4428
4429         PR debug/58150
4430         * dwarf2out.c (gen_enumeration_type_die): Don't guard adding
4431         DW_AT_declaration for ENUM_IS_OPAQUE on -gdwarf-4 or -gno-strict-dwarf,
4432         but on TYPE_SIZE.  Don't do anything for ENUM_IS_OPAQUE if not creating
4433         a new die.  Don't set TREE_ASM_WRITTEN if ENUM_IS_OPAQUE.  Guard
4434         addition of most attributes on !orig_type_die or the attribute not
4435         being present already.  Assert TYPE_VALUES is NULL for ENUM_IS_OPAQUE.
4436
4437 2018-03-11  Kito Cheng  <kito.cheng@gmail.com>
4438             Chung-Ju Wu  <jasonwucj@gmail.com>
4439
4440         * config/nds32/nds32.c (nds32_cpu_cpp_builtins): Modify to define
4441         __NDS32_VH__ macro.
4442         * config/nds32/nds32.opt (mvh): New option.
4443
4444 2018-03-11  Kito Cheng  <kito.cheng@gmail.com>
4445             Chung-Ju Wu  <jasonwucj@gmail.com>
4446
4447         * config/nds32/nds32-protos.h (nds32_cpu_cpp_builtins): Declare
4448         function.
4449         * config/nds32/nds32.c (nds32_cpu_cpp_builtins): New function.
4450         * config/nds32/nds32.h (TARGET_CPU_CPP_BUILTINS): Modify its
4451         definition.
4452
4453 2018-03-11  Kito Cheng  <kito.cheng@gmail.com>
4454             Chung-Ju Wu  <jasonwucj@gmail.com>
4455
4456         * config/nds32/nds32-memory-manipulation.c (nds32_expand_strlen): New
4457         function.
4458         * config/nds32/nds32-multiple.md (strlensi): New pattern.
4459         * config/nds32/nds32-protos.h (nds32_expand_strlen): Declare function.
4460
4461 2018-03-11  Monk Chiang  <sh.chiang04@gmail.com>
4462             Kito Cheng  <kito.cheng@gmail.com>
4463             Chung-Ju Wu  <jasonwucj@gmail.com>
4464
4465         * config/nds32/constants.md (unspec_element): Add UNSPEC_FFB,
4466         UNSPEC_FFMISM and UNSPEC_FLMISM.
4467         * config/nds32/nds32-intrinsic.c (bdesc_2arg): Add builtin description
4468         for ffb, ffmism and flmism.
4469         * config/nds32/nds32-intrinsic.md (unspec_ffb): Define new pattern.
4470         (unspec_ffmism): Ditto.
4471         (unspec_flmism): Ditto.
4472         (nds32_expand_builtin_impl): Check if string extension is available.
4473         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_FFB,
4474         NDS32_BUILTIN_FFMISM and NDS32_BUILTIN_FLMISM.
4475
4476 2018-03-10  Vladimir Makarov  <vmakarov@redhat.com>
4477
4478         Reverting patch:
4479         2018-03-09  Vladimir Makarov  <vmakarov@redhat.com>
4480
4481         PR target/83712
4482         * lra-assigns.c (assign_by_spills): Return a flag of reload
4483         assignment failure.  Do not process the reload assignment
4484         failures.  Do not spill other reload pseudos if they has the same
4485         reg class.
4486         (lra_assign): Add a return arg.  Set up from the result of
4487         assign_by_spills call.
4488         (find_reload_regno_insns, lra_split_hard_reg_for): New functions.
4489         * lra-constraints.c (split_reg): Add a new arg.  Use it instead of
4490         usage_insns if it is not NULL.
4491         (spill_hard_reg_in_range): New function.
4492         (split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
4493         * lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
4494         function prototypes.
4495         (lra_assign): Change prototype.
4496         * lra.c (lra): Add code to deal with fails by splitting hard reg
4497         live ranges.
4498
4499 2018-03-10  H.J. Lu  <hongjiu.lu@intel.com>
4500
4501         PR target/84807
4502         * config/i386/i386.opt: Replace Enforcment with Enforcement.
4503
4504 2018-03-10  Alexandre Oliva  <aoliva@redhat.com>
4505
4506         PR debug/84620
4507         * dwarf2out.h (dw_val_class): Add dw_val_class_symview.
4508         (dw_val_node): Add val_symbolic_view.
4509         * dwarf2out.c (dw_line_info_table): Add symviews_since_reset.
4510         (symview_upper_bound): New.
4511         (new_line_info_table): Initialize symviews_since_reset.
4512         (dwarf2out_source_line): Count symviews_since_reset and set
4513         symview_upper_bound.
4514         (dw_val_equal_p): Handle symview.
4515         (add_AT_symview): New.
4516         (print_dw_val): Handle symview.
4517         (attr_checksum, attr_checksum_ordered): Likewise.
4518         (same_dw_val_p, size_of_die): Likewise.
4519         (value_format, output_die): Likewise.
4520         (add_high_low_attributes): Use add_AT_symview for entry_view.
4521         (dwarf2out_finish): Reset symview_upper_bound, clear
4522         zero_view_p.
4523
4524 2018-03-09  Peter Bergner  <bergner@vnet.ibm.com>
4525
4526         PR target/83969
4527         * config/rs6000/rs6000.c (rs6000_offsettable_memref_p): New prototype.
4528         Add strict argument and use it.
4529         (rs6000_split_multireg_move): Update for new strict argument.
4530         (mem_operand_gpr): Disallow all non-offsettable addresses.
4531         * config/rs6000/rs6000.md (*movdi_internal64): Use YZ constraint.
4532
4533 2018-03-09  Jakub Jelinek  <jakub@redhat.com>
4534
4535         PR target/84772
4536         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Mark va_arg_tmp
4537         temporary TREE_ADDRESSABLE before gimplification of BUILT_IN_MEMCPY.
4538         * config/powerpcspe/powerpcspe.c (rs6000_gimplify_va_arg): Likewise.
4539
4540         PR c++/84767
4541         * tree-inline.c (copy_tree_body_r): For INDIRECT_REF of a remapped
4542         decl, use remap_type if we want to use the type.
4543
4544 2018-03-09  Martin Sebor  <msebor@redhat.com>
4545
4546         PR tree-optimization/84526
4547         * gimple-ssa-warn-restrict.c (builtin_memref::set_base_and_offset):
4548         Remove dead code.
4549         (builtin_access::generic_overlap): Be prepared to handle non-array
4550         base objects.
4551
4552 2018-03-09  Alexandre Oliva  <aoliva@redhat.com>
4553
4554         PR rtl-optimization/84682
4555         * lra-constraints.c (process_address_1): Check is_address flag
4556         for address constraints.
4557         (process_alt_operands): Likewise.
4558         * lra.c (lra_set_insn_recog_data): Pass asm operand locs to
4559         preprocess_constraints.
4560         * recog.h (preprocess_constraints): Add oploc parameter.
4561         Adjust callers.
4562         * recog.c (preprocess_constraints): Test address_operand for
4563         CT_ADDRESS constraints.
4564
4565 2018-03-09  Vladimir Makarov  <vmakarov@redhat.com>
4566
4567         PR target/83712
4568         * lra-assigns.c (assign_by_spills): Return a flag of reload
4569         assignment failure.  Do not process the reload assignment
4570         failures.  Do not spill other reload pseudos if they has the same
4571         reg class.
4572         (lra_assign): Add a return arg.  Set up from the result of
4573         assign_by_spills call.
4574         (find_reload_regno_insns, lra_split_hard_reg_for): New functions.
4575         * lra-constraints.c (split_reg): Add a new arg.  Use it instead of
4576         usage_insns if it is not NULL.
4577         (spill_hard_reg_in_range): New function.
4578         (split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
4579         * lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
4580         function prototypes.
4581         (lra_assign): Change prototype.
4582         * lra.c (lra): Add code to deal with fails by splitting hard reg
4583         live ranges.
4584
4585 2018-03-09  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
4586
4587         PR target/83193
4588         * common/config/arm/arm-common.c (arm_parse_arch_option_name):
4589         Accept complain bool parameter.  Only emit errors if it is true.
4590         (arm_parse_cpu_option_name): Likewise.
4591         (arm_target_thumb_only): Adjust callers of the above.
4592         * config/arm/arm-protos.h (arm_parse_cpu_option_name): Adjust
4593         prototype to take a default true bool parameter.
4594         (arm_parse_arch_option_name): Likewise.
4595
4596 2018-03-09  David Malcolm  <dmalcolm@redhat.com>
4597             Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
4598
4599         PR jit/64089
4600         PR jit/84288
4601         * Makefile.in (LD_VERSION_SCRIPT_OPTION, LD_SONAME_OPTION): New.
4602         * configure: Regenerate.
4603         * configure.ac ("linker --version-script option"): New.
4604         ("linker soname option"): New.
4605
4606 2018-03-09  Richard Biener  <rguenther@suse.de>
4607
4608         PR tree-optimization/84775
4609         * tree-if-conv.c (add_bb_predicate_gimplified_stmts): Delink
4610         immediate uses of predicate stmts and mark them modified.
4611
4612         Revert
4613         PR tree-optimization/84178
4614         * tree-if-conv.c (combine_blocks): Move insert_gimplified_predicates
4615         to caller.
4616         (version_loop_for_if_conversion): Delay update_ssa call.
4617         (tree_if_conversion): Delay update_ssa until after predicate
4618         insertion.
4619
4620 2018-03-09  Eric Botcazou  <ebotcazou@adacore.com>
4621
4622         PR target/84763
4623         * config/i386/winnt.c (i386_pe_seh_cold_init): Use small pre-allocation
4624         when the function accesses prior frames.
4625
4626 2018-03-08  Jakub Jelinek  <jakub@redhat.com>
4627
4628         PR debug/84456
4629         * dwarf2out.c (dw_loc_list): If list && loc_list->first->next, call
4630         gen_llsym, otherwise call maybe_gen_llsym.
4631
4632         PR inline-asm/84742
4633         * recog.c (asm_operand_ok): Return 0 if multi-character constraint
4634         has ',' character inside of it.
4635
4636 2018-03-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
4637
4638         PR target/84748
4639         * config/aarch64/aarch64.md (*compare_cstore<mode>_insn): Mark pattern
4640         as clobbering CC_REGNUM.
4641
4642 2018-03-08  Richard Biener  <rguenther@suse.de>
4643
4644         PR middle-end/84552
4645         * tree-scalar-evolution.c: Include tree-into-ssa.h.
4646         (follow_copies_to_constant): Do not follow SSA names registered
4647         for update.
4648
4649 2018-03-08  Richard Biener  <rguenther@suse.de>
4650
4651         PR tree-optimization/84178
4652         * tree-if-conv.c (combine_blocks): Move insert_gimplified_predicates
4653         to caller.
4654         (version_loop_for_if_conversion): Delay update_ssa call.
4655         (tree_if_conversion): Delay update_ssa until after predicate
4656         insertion.
4657
4658 2018-03-08  David Malcolm  <dmalcolm@redhat.com>
4659
4660         PR tree-optimization/84178
4661         * tree-if-conv.c (release_bb_predicate): Remove the
4662         the assertion that the stmts have NULL use_ops.
4663         Discard the statements, asserting that they haven't
4664         yet been added to a BB.
4665
4666 2018-03-08  Richard Biener  <rguenther@suse.de>
4667
4668         PR tree-optimization/84746
4669         * tree-ssa-pre.c (find_leader_in_sets): Deal with SET1 being NULL.
4670         (phi_translate): Pass in destination ANTIC_OUT set.
4671         (phi_translate_1): Likewise.  For a simplified result lookup
4672         a leader in ANTIC_OUT and AVAIL_OUT, not the ANTIC_IN sets.
4673         (phi_translate_set): Adjust.
4674         (do_pre_regular_insertion): Likewise.
4675         (do_pre_partial_partial_insertion): Likewise.
4676
4677 2018-03-08  Martin Liska  <mliska@suse.cz>
4678
4679         PR gcov-profile/84735
4680         * doc/gcov.texi: Document usage of profile files.
4681         * gcov-io.h: Document changes in the format.
4682
4683 2018-03-08  Alexandre Oliva  <aoliva@redhat.com>
4684
4685         PR debug/84404
4686         PR debug/84408
4687         * dwarf2out.c (struct dw_line_info_table): Update comments for
4688         view == -1.
4689         (FORCE_RESET_NEXT_VIEW): New.
4690         (FORCE_RESETTING_VIEW_P): New.
4691         (RESETTING_VIEW_P): Check for -1 too.
4692         (ZERO_VIEW_P): Likewise.
4693         (new_line_info_table): Force-reset next view.
4694         (dwarf2out_begin_function): Likewise.
4695         (dwarf2out_source_line): Simplify zero_view_p initialization.
4696         Test FORCE_RESETTING_VIEW_P and RESETTING_VIEW_P instead of
4697         view directly.  Omit view when omitting .loc at line 0.
4698
4699 2018-03-08  Jakub Jelinek  <jakub@redhat.com>
4700
4701         PR tree-optimization/84740
4702         * tree-switch-conversion.c (process_switch): Call build_constructors
4703         only if info.phi_count is non-zero.
4704
4705         PR tree-optimization/84739
4706         * tree-tailcall.c (find_tail_calls): Check call arguments against
4707         DECL_ARGUMENTS (current_function_decl) rather than
4708         DECL_ARGUMENTS (func) when checking for tail recursion.
4709
4710 2018-03-07  Jakub Jelinek  <jakub@redhat.com>
4711
4712         * doc/contrib.texi: Add entries for Martin Liska, David Malcolm,
4713         Marek Polacek, extend Vladimir Makarov's, Jonathan Wakely's and
4714         Volker Reichelt's entry and add entries for people that perform
4715         GCC fuzzy testing and report numerous bugs.
4716
4717 2018-03-07  Segher Boessenkool  <segher@kernel.crashing.org>
4718
4719         PR target/82411
4720         * config/rs6000/rs6000.c (rs6000_elf_in_small_data_p): Don't put
4721         readonly data in sdata, if that is disabled.
4722         * config/rs6000/sysv4.opt (mreadonly-in-sdata): New option.
4723         * doc/invoke.texi (RS/6000 and PowerPC Options): Document
4724         -mreadonly-in-sdata option.
4725
4726 2018-03-07  Martin Sebor  <msebor@redhat.com>
4727
4728         PR tree-optimization/84468
4729         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Consider successor
4730         basic block when looking for nul assignment.
4731
4732 2018-03-07  Eric Botcazou  <ebotcazou@adacore.com>
4733
4734         PR target/84277
4735         * except.h (output_function_exception_table): Adjust prototype.
4736         * except.c (output_function_exception_table): Remove FNNAME parameter
4737         and add SECTION parameter.  Ouput one part of the table at a time.
4738         * final.c (final_scan_insn_1) <NOTE_INSN_SWITCH_TEXT_SECTIONS>: Output
4739         the first part of the exception table and emit unwind directives.
4740         * config/i386/i386-protos.h (i386_pe_end_cold_function): Declare.
4741         (i386_pe_seh_cold_init): Likewise.
4742         * config/i386/cygming.h (ASM_DECLARE_COLD_FUNCTION_NAME): New macro.
4743         (ASM_DECLARE_COLD_FUNCTION_SIZE): Likewise.
4744         * config/i386/i386.c (x86_expand_epilogue): Fix wording in comment.
4745         (ix86_output_call_insn): Emit a nop in one more case for SEH.
4746         * config/i386/winnt.c: Include except.h.
4747         (struct seh_frame_state): Add reg_offset, after_prologue and
4748         in_cold_section fields.
4749         (i386_pe_seh_end_prologue): Set seh->after_prologue.
4750         (i386_pe_seh_cold_init): New function.
4751         (i386_pe_seh_fini): Add COLD parameter and bail out if it is not equal
4752         to seh->in_cold_section.
4753         (seh_emit_push): Record the offset of the push.
4754         (seh_emit_save): Record the offet of the save.
4755         (i386_pe_seh_unwind_emit): Deal with NOTE_INSN_SWITCH_TEXT_SECTIONS.
4756         Test seh->after_prologue to disregard the epilogue.
4757         (i386_pe_end_function): Pass FALSE to i386_pe_seh_fini.
4758         (i386_pe_end_cold_function): New function.
4759
4760 2018-03-07  Jakub Jelinek  <jakub@redhat.com>
4761
4762         PR fortran/84565
4763         * config/aarch64/predicates.md (aarch64_simd_reg_or_zero): Use
4764         aarch64_simd_or_scalar_imm_zero rather than aarch64_simd_imm_zero.
4765
4766         PR c++/84704
4767         * gimple-expr.c (create_tmp_var_raw): Set DECL_NAMELESS flag
4768         on tmp_var.
4769         * tree-pretty-print.c (dump_decl_name): For TDF_COMPARE_DEBUG,
4770         don't print names of DECL_NAMELESS DECL_IGNORED_P decls.
4771
4772         PR middle-end/84723
4773         * multiple_target.c: Include tree-inline.h and intl.h.
4774         (expand_target_clones): Diagnose and fail if node->definition and
4775         !tree_versionable_function_p (node->decl).
4776
4777 2018-03-06  John David Anglin  <danglin@gcc.gnu.org>
4778
4779         * config/pa/pa.h (ASM_GENERATE_INTERNAL_LABEL): Revise to use
4780         sprint_ul.
4781         (ASM_OUTPUT_ADDR_VEC_ELT): Revise for above change.
4782         (ASM_OUTPUT_ADDR_DIFF_ELT): Likewise.
4783         * config/pa/pa64-hpux.h (ASM_GENERATE_INTERNAL_LABEL): Revise as above.
4784
4785 2018-03-06  Jakub Jelinek  <jakub@redhat.com>
4786
4787         PR target/84710
4788         * combine.c (try_combine): Use reg_or_subregno instead of handling
4789         just paradoxical SUBREGs and REGs.
4790
4791 2018-03-06  Claudiu Zissulescu  <claziss@synopsys.com>
4792
4793          * config/arc/arc.c (arc_finalize_pic): Remove function.
4794          (arc_must_save_register): We use single base PIC register, remove
4795          checks to save/restore the PIC register.
4796          (arc_expand_prologue): Likewise.
4797          * config/arc/arc-protos.h (arc_set_default_type_attributes):
4798          Remove.
4799          (arc_verify_short): Likewise.
4800          (arc_attr_type): Likewise.
4801          * config/arc/arc.c (arc_set_default_type_attributes): Remove.
4802          (walk_stores): Likewise.
4803          (arc_address_cost): Make it static.
4804          (arc_verify_short): Likewise.
4805          (branch_dest): Likewise.
4806          (arc_attr_type): Likewise.
4807          * config/arc/arc.c (TARGET_ADJUST_INSN_LENGTH): Remove.
4808          (TARGET_INSN_LENGTH_PARAMETERS): Likewise.
4809          (arc_final_prescan_insn): Remove inserting the nops due to
4810          hardware hazards.  It is done in reorg step.
4811          (insn_length_variant_t): Remove.
4812          (insn_length_parameters_t): Likewise.
4813          (arc_insn_length_parameters): Likewise.
4814          (arc_get_insn_variants): Likewise.
4815          * config/arc/arc.h (TARGET_UPSIZE_DBR): Remove.
4816
4817 2018-03-06  Jakub Jelinek  <jakub@redhat.com>
4818
4819         PR inline-asm/84683
4820         * reg-stack.c (move_for_stack_reg): If any_malformed_asm, avoid
4821         assertion failure.
4822
4823         PR tree-optimization/84687
4824         * omp-simd-clone.c (simd_clone_create): Clear DECL_BUILT_IN_CLASS
4825         on new_node->decl.
4826         * match.pd (pow(C,x)*expN(y) -> expN(logN(C)*x+y)): New optimization.
4827
4828 2018-03-05  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
4829
4830         * config/rs6000/rs6000-builtin.def (rs6000_speculation_barrier):
4831         Rename to ppc_speculation_barrier.
4832         * config/rs6000/rs6000.c (rs6000_init_builtins): Rename builtin to
4833         __builtin_ppc_speculation_barrier.
4834
4835 2018-03-05  Jakub Jelinek  <jakub@redhat.com>
4836
4837         PR target/84700
4838         * combine.c (combine_simplify_rtx): Don't try to simplify if
4839         if_then_else_cond returned non-NULL, but either true_rtx or false_rtx
4840         are equal to x.
4841
4842 2018-03-05  Segher Boessenkool  <segher@kernel.crashing.org>
4843
4844         * config/rs6000/rs6000.c (rs6000_loop_align): Don't align tiny loops
4845         to 32 bytes when compiling for POWER9.
4846
4847 2018-03-05  Jakub Jelinek  <jakub@redhat.com>
4848
4849         PR target/84564
4850         * config/i386/i386.c (ix86_function_ok_for_sibcall): Check for
4851         regparm >= 3 with no arg reg available also for calls with
4852         flag_force_indirect_call.  Pass decl to ix86_function_regparm.
4853
4854         PR target/84524
4855         * config/i386/sse.md (*<code><mode>3): Replace <mask_prefix3> with
4856         orig,vex.
4857         (*<plusminus_insn><mode>3): Likewise.  Remove <mask_operand3> uses.
4858
4859 2018-03-05  Peter Bergner  <bergner@vnet.ibm.com>
4860
4861         PR target/84264
4862         * config/rs6000/vector.md (mov<mode>): Disallow altivec memory operands.
4863
4864 2018-03-05  Richard Biener  <rguenther@suse.de>
4865
4866         PR tree-optimization/84486
4867         * tree-ssa-pre.c (create_expression_by_pieces): Remove dead code.
4868         When inserting a __builtin_assume_aligned call set the LHS
4869         SSA name alignment info accordingly.
4870
4871 2018-03-05  Wilco Dijkstra  <wdijkstr@arm.com>
4872
4873         PR tree-optimization/84114
4874         * config/aarch64/aarch64.c (aarch64_reassociation_width)
4875         Avoid reassociation of FLOAT_MODE addition.
4876
4877 2018-03-05  Olga Makhotina  <olga.makhotina@intel.com>
4878
4879         * common/config/i386/i386-common.c (OPTION_MASK_ISA_PCONFIG_SET,
4880         OPTION_MASK_ISA_PCONFIG_UNSET, OPTION_MASK_ISA_WBNOINVD_SET,
4881         OPTION_MASK_ISA_WBNOINVD_UNSET): New definitions.
4882         (ix86_handle_option): Handle -mpconfig and -mwbnoinvd.
4883         * config.gcc (pconfigintrin.h, wbnoinvdintrin.h) : Add headers.
4884         * config/i386/cpuid.h (bit_PCONFIG, bit_WBNOINVD): New.
4885         * config/i386/driver-i386.c (host_detect_local_cpu): Detect -mpconfig
4886         and -mwbnoinvd.
4887         * config/i386/i386-builtin.def (__builtin_ia32_wbnoinvd,
4888         __builtin_ia32_wbinvd): New builtins.
4889         (SPECIAL_ARGS2): New.
4890         * config/i386/i386-c.c (__WBNOINVD__, __PCONFIG__): New.
4891         (SPECIAL_ARGS2): New.
4892         * config/i386/i386.c (ix86_target_string): Add -mpconfig and -mwbnoinvd.
4893         (ix86_valid_target_attribute_inner_p): Ditto.
4894         (ix86_init_mmx_sse_builtins): Add special_args2.
4895         * config/i386/i386.h (TARGET_PCONFIG, TARGET_PCONFIG_P, TARGET_WBNOINVD,
4896         TARGET_WBNOINVD_P): New.
4897         * config/i386/i386.md (UNSPECV_WBINVD, UNSPECV_WBNOINVD): New.
4898         (define_insn "wbinvd", define_insn "wbnoinvd"): New.
4899         * config/i386/i386.opt: Add -mpconfig and -mwbnoinvd.
4900         * config/i386/immintrin.h (_wbinvd): New intrinsic.
4901         * config/i386/pconfigintrin.h: New file.
4902         * config/i386/wbnoinvdintrin.h: Ditto.
4903         * config/i386/x86intrin.h: Add headers pconfigintrin.h and wbnoinvdintrin.h.
4904         * doc/invoke.texi (-mpconfig, -mwbnoinvd): New.
4905
4906 2018-03-05  Richard Biener  <rguenther@suse.de>
4907
4908         PR tree-optimization/84670
4909         * tree-ssa-pre.c (struct bb_bitmap_sets): Add visited_with_visited_succs
4910         member.
4911         (BB_VISITED_WITH_VISITED_SUCCS): New define.
4912         (compute_antic): Initialize BB_VISITED_WITH_VISITED_SUCCS.
4913         (compute_antic_aux): Only assert the number of values in ANTIC_IN
4914         doesn't grow if all successors (recursively) were visited at least
4915         once.
4916
4917 2018-03-05  Richard Biener  <rguenther@suse.de>
4918
4919         PR tree-optimization/84650
4920         * tree-ssa-loop-im.c (pass_lim::execute): Reset the SCEV cache
4921         if executed in the loop pipeline.
4922
4923 2018-03-05  Sandra Loosemore  <sandra@codesourcery.com>
4924
4925         * doc/configfiles.texi (Configuration Files): Move info about
4926         conditionalizing $target-protos.h to...
4927         * doc/sourcebuild.texi (Back End): Here.  Explain how $target.h
4928         differs from $target-protos.h.
4929
4930 2018-03-05  Kito Cheng  <kito.cheng@gmail.com>
4931             Chung-Ju Wu  <jasonwucj@gmail.com>
4932
4933         * config/nds32/nds32-protos.h (nds32_expand_setmem): Declare.
4934         * config/nds32/nds32-multiple.md (setmemsi): Define.
4935         * config/nds32/nds32-memory-manipulation.c
4936         (nds32_gen_dup_4_byte_to_word_value): New.
4937         (emit_setmem_word_loop): New.
4938         (emit_setmem_byte_loop): New.
4939         (nds32_expand_setmem_loop): New.
4940         (nds32_expand_setmem_loop_v3m): New.
4941         (nds32_expand_setmem_unroll): New.
4942         (nds32_expand_setmem): New.
4943
4944 2018-03-04  Kito Cheng  <kito.cheng@gmail.com>
4945             Chung-Ju Wu  <jasonwucj@gmail.com>
4946
4947         * config/nds32/nds32-memory-manipulation.c
4948         (nds32_emit_load_store): New.
4949         (nds32_emit_post_inc_load_store): New.
4950         (nds32_emit_mem_move): New.
4951         (nds32_emit_mem_move_block): New.
4952         (nds32_expand_movmemsi_loop_unknown_size): New.
4953         (nds32_expand_movmemsi_loop_known_size): New.
4954         (nds32_expand_movmemsi_loop): New.
4955         (nds32_expand_movmemsi_unroll): New.
4956         (nds32_expand_movmemqi): Rename ...
4957         (nds32_expand_movmemsi): ... to this.
4958         * config/nds32/nds32-multiple.md (movmemqi): Rename ...
4959         (movmemsi): ... to this.
4960         * config/nds32/nds32-protos.h (nds32_expand_movmemqi): Rename ...
4961         (nds32_expand_movmemsi): ... to this.
4962
4963 2018-03-04  Kito Cheng  <kito.cheng@gmail.com>
4964             Monk Chiang  <sh.chiang04@gmail.com>
4965             Chung-Ju Wu  <jasonwucj@gmail.com>
4966
4967         * config/nds32/nds32-protos.h
4968         (nds32_expand_load_multiple): New arguments.
4969         (nds32_expand_store_multiple): Ditto.
4970         (nds32_valid_multiple_load_store): Rename ...
4971         (nds32_valid_multiple_load_store_p): ... to this.
4972         * config/nds32/nds32-memory-manipulation.c
4973         (nds32_expand_load_multiple): Refine implementation.
4974         (nds32_expand_store_multiple): Ditto.
4975         * config/nds32/nds32-multiple.md
4976         (load_multiple): Update nds32_expand_load_multiple interface.
4977         (store_multiple): Update nds32_expand_store_multiple interface.
4978         * config/nds32/nds32-predicates.c
4979         (nds32_valid_multiple_load_store): Rename ...
4980         (nds32_valid_multiple_load_store_p): ... to this and refine
4981         implementation.
4982         * config/nds32/predicates.md
4983         (nds32_load_multiple_and_update_address_operation): New predicate.
4984         (nds32_store_multiple_and_update_address_operation): New predicate.
4985
4986 2018-03-04  Kito Cheng  <kito.cheng@gmail.com>
4987             Chung-Ju Wu  <jasonwucj@gmail.com>
4988
4989         * config/nds32/nds32.md (type): Add load_multiple and store_multiple.
4990         (combo): New attribute.
4991         * config/nds32/nds32-multiple.md: Refine patterns with new attributes.
4992
4993 2018-03-03  Chung-Ju Wu  <jasonwucj@gmail.com>
4994
4995         * config/nds32/nds32.opt: Change -mcmodel= default value.
4996
4997 2018-03-03  Kito Cheng  <kito.cheng@gmail.com>
4998             Monk Chiang  <sh.chiang04@gmail.com>
4999             Chung-Ju Wu  <jasonwucj@gmail.com>
5000
5001         * config/nds32/constants.md (unspec_element): New enum.
5002         * config/nds32/constraints.md (Umw): New constraint.
5003         * config/nds32/nds32-intrinsic.c: Add more builtin functions.
5004         * config/nds32/nds32-intrinsic.md: Likewise.
5005         * config/nds32/nds32-md-auxiliary.c (nds32_regno_to_enable4): New.
5006         (nds32_valid_smw_lwm_base_p): New.
5007         (nds32_output_smw_single_word): New.
5008         (nds32_output_lmw_single_word): New.
5009         (nds32_expand_unaligned_load): New.
5010         (nds32_expand_unaligned_store): New.
5011         * config/nds32/nds32-protos.h (nds32_valid_smw_lwm_base_p): Declare.
5012         (nds32_output_smw_single_word): Declare.
5013         (nds32_output_lmw_single_word): Declare.
5014         (nds32_expand_unaligned_load): Declare.
5015         (nds32_expand_unaligned_store): Declare.
5016         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_UALOAD_HW,
5017         NDS32_BUILTIN_UALOAD_W, NDS32_BUILTIN_UALOAD_DW,
5018         NDS32_BUILTIN_UASTORE_HW, NDS32_BUILTIN_UASTORE_W,
5019         NDS32_BUILTIN_UASTORE_DW.
5020         * config/nds32/predicates.md (nds32_lmw_smw_base_operand): New
5021         predicate.
5022
5023 2018-03-03  Monk Chiang  <sh.chiang04@gmail.com>
5024             Kito Cheng  <kito.cheng@gmail.com>
5025             Chung-Ju Wu  <jasonwucj@gmail.com>
5026
5027         * config/nds32/nds32-intrinsic.c
5028         (nds32_expand_builtin_null_ftype_reg): Delete.
5029         (nds32_expand_builtin_reg_ftype_imm): Ditto.
5030         (nds32_expand_builtin_null_ftype_reg_imm): Ditto.
5031         (nds32_read_argument): New.
5032         (nds32_legitimize_target): Ditto.
5033         (nds32_legitimize_argument): Ditto.
5034         (nds32_check_constant_argument): Ditto.
5035         (nds32_expand_unop_builtin): Ditto.
5036         (nds32_expand_unopimm_builtin): Ditto.
5037         (nds32_expand_binop_builtin): Ditto.
5038         (nds32_builtin_decl_impl): Ditto.
5039         (builtin_description): Ditto.
5040         (nds32_expand_builtin_impl): Rewrite with new infrastructure.
5041         (nds32_init_builtins_impl): Ditto.
5042         * config/nds32/nds32.c (TARGET_BUILTIN_DECL): Define.
5043         (nds32_builtin_decl): New.
5044         * config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_COUNT.
5045         * config/nds32/nds32-protos.h (nds32_builtin_decl_impl): Declare.
5046
5047 2018-03-02  Jeff Law  <law@redhat.com>
5048
5049         * reorg.c (stop_search_p): Handle DEBUG_INSN.
5050         (redundant_insn, fill_simple_delay_slots): Likewise.
5051         (fill_slots_from_thread): Likewise.
5052         * resource.c (mark_referenced_resources): Likewise.
5053         (mark_set_resources, find_dead_or_set_registers): Likewise.
5054
5055 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
5056
5057         * substring-locations.h (format_warning_va): Formatting fix for
5058         ATTRIBUTE_GCC_DIAG.
5059         (format_warning_at_substring): Fix up ATTRIBUTE_GCC_DIAG second
5060         argument.
5061         (format_warning_n_va, format_warning_at_substring_n): New prototypes.
5062         * substring-locations.c: Include intl.h.
5063         (format_warning_va): Turned into small wrapper around
5064         format_warning_n_va, renamed to ...
5065         (format_warning_n_va): ... this, add N and PLURAL_GMSGID arguments,
5066         rename GMSGID to SINGULAR_GMSGID, if SINGULAR_GMSGID != PLURAL_GMSGID,
5067         use ngettext.
5068         (format_warning_at_substring_n): New function.
5069         * gimple-ssa-sprintf.c: Remove GCC diagnostic ignored pragma.
5070         (fmtwarn): Add ATTRIBUTE_GCC_DIAG.  Turn into a copy of
5071         format_warning_at_substring with just a shorter name instead of
5072         const function pointer.
5073         (fmtwarn_n): New function.
5074         (maybe_warn, format_directive, parse_directive): Use fmtwarn_n where
5075         appropriate, get rid of all the fmtstr temporaries, move conditionals
5076         with G_() wrapped string literals directly into fmtwarn arguments,
5077         cast dir.len to (int), formatting fixes.
5078
5079 2018-03-02  Thomas Schwinge  <thomas@codesourcery.com>
5080
5081         * doc/invoke.texi: Remove "Cilk Plus" references.
5082
5083 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
5084             Richard Biener  <rguenther@suse.de>
5085
5086         PR ipa/84628
5087         * expr.c (expand_expr_real_1) <case CALL_EXPR>: Don't emit diagnostics
5088         for error or warning attributes if CALL_FROM_THUNK_P is set.
5089         Formatting fixes.
5090
5091 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
5092
5093         PR target/56540
5094         * config/pa/pa.h (TARGET_CPU_CPP_BUILTINS): Predefine
5095         __SIZEOF_128__ macro if HPUX_LONG_DOUBLE_LIBRARY.
5096
5097         PR target/56540
5098         * config/ia64/ia64.h (TARGET_CPU_CPP_BUILTINS): Predefine
5099         __SIZEOF_{FPREG,FLOAT{80,128}}__ macros.
5100
5101         * predict.c (test_prediction_value_range): Use PROB_UNINITIALIZED
5102         instead of -1U in last predictors element's probability member.
5103
5104 2018-03-02  Eric Botcazou  <ebotcazou@adacore.com>
5105
5106         PR ipa/83983
5107         * ipa-devirt.c (odr_subtypes_equivalent_p): Get the ODR type of both
5108         arguments if they are comparable.
5109
5110 2018-03-02  Richard Sandiford  <richard.sandiford@linaro.org>
5111
5112         PR tree-optimization/84634
5113         * tree-vect-stmts.c (vectorizable_store, vectorizable_load): Replace
5114         masks and masked_loop_p with a single loop_masks, making sure it's
5115         null for bb vectorization.
5116
5117 2018-03-02  Richard Sandiford  <richard.sandiford@linaro.org>
5118
5119         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence)
5120         (vect_analyze_data_ref_access): Use loop->safe_len rather than
5121         loop->force_vectorize to check whether there is no alias.
5122
5123 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
5124
5125         PR target/84614
5126         * rtl.h (prev_real_nondebug_insn, next_real_nondebug_insn): New
5127         prototypes.
5128         * emit-rtl.c (next_real_insn, prev_real_insn): Fix up function
5129         comments.
5130         (next_real_nondebug_insn, prev_real_nondebug_insn): New functions.
5131         * cfgcleanup.c (try_head_merge_bb): Use prev_real_nondebug_insn
5132         instead of a loop around prev_real_insn.
5133         * combine.c (move_deaths): Use prev_real_nondebug_insn instead of
5134         prev_real_insn.
5135
5136         PR inline-asm/84625
5137         * config/i386/i386.c (ix86_print_operand): Use conditional
5138         output_operand_lossage instead of gcc_assert if CONST_VECTOR is not
5139         zero vector.
5140
5141 2018-03-02  Richard Biener  <rguenther@suse.de>
5142
5143         PR tree-optimization/84427
5144         * tree-ssa-pre.c (bitmap_remove_expr_from_set): Remove.
5145         (bitmap_set_subtract_values): Rewrite to handle multiple
5146         exprs per value.
5147         (clean): Likewise.
5148         (prune_clobbered_mems): Likewise.
5149         (phi_translate): Take edge instead of pred/phiblock.
5150         (phi_translate_1): Likewise.
5151         (phi_translate_set): Likewise.  Insert all translated
5152         exprs for a value into the set, keeping possibly multiple
5153         expressions per value.
5154         (compute_antic_aux): Adjust for phi_translate changes.
5155         When intersecting union the expressions and prune those
5156         not in the final value set, keeping possibly multiple
5157         expressions per value.  Do not use value-insertion
5158         for unioning ANTIC_OUT U EXP_GEN - TMP_GEN but merge
5159         all expressions.  Add verification that the value-sets
5160         only shrink during iteration.
5161         (compute_partial_antic_aux): Adjust for the phi_translate changes.
5162         (do_pre_regular_insertion): Likewise.
5163         (do_pre_partial_partial_insertion): Likewise.
5164
5165 2018-03-02  Richard Biener  <rguenther@suse.de>
5166
5167         PR target/82005
5168         * config/darwin.c (saved_debug_info_level): New static global.
5169         (darwin_asm_lto_start): Disable debug info generation for LTO out.
5170         (darwin_asm_lto_end): Restore debug info generation settings.
5171
5172 2018-03-01  Martin Liska  <mliska@suse.cz>
5173
5174         PR sanitizer/82484
5175         * sanopt.c (sanitize_rewrite_addressable_params): Do not handle
5176         volatile arguments.
5177
5178 2018-03-01  Richard Biener  <rguenther@suse.de>
5179
5180         PR debug/84645
5181         * dwarf2out.c (gen_variable_die): Properly handle late VLA
5182         type annotation with LTO when debug was disabled at compile-time.
5183
5184 2018-03-01  Matthew Fortune  <mfortune@gmail.com>
5185
5186         * config/mips/mips.c (mips_final_prescan_insn): Fix incorrect
5187         XINT with INTVAL.
5188         (mips_final_postscan_insn): Likewise.
5189
5190 2018-03-01  Richard Sandiford  <richard.sandiford@linaro.org>
5191
5192         PR rtl-optimization/84528
5193         * alias.c (init_alias_target): Add commentary.
5194         (init_alias_analysis): Only give HARD_FRAME_POINTER_REGNUM
5195         a unique base value if the frame pointer is not eliminated
5196         to the stack pointer.
5197
5198 2018-03-01  Tom de Vries  <tom@codesourcery.com>
5199
5200         PR rtl-optimization/83327
5201         * lra-int.h (hard_regs_spilled_into): Declare.
5202         * lra.c (hard_regs_spilled_into): Define.
5203         (init_reg_info): Init hard_regs_spilled_into.
5204         * lra-spills.c (assign_spill_hard_regs): Update hard_regs_spilled_into.
5205         * lra-lives.c (make_hard_regno_born, make_hard_regno_dead)
5206         (process_bb_lives): Handle hard_regs_spilled_into.
5207         (lra_create_live_ranges_1): Before doing liveness propagation, clear
5208         regs in all_hard_regs_bitmap if set in hard_regs_spilled_into.
5209
5210 2018-02-28  David Edelsohn  <dje.gcc@gmail.com>
5211
5212         * config.gcc (powerpc-ibm-aix7.1.*): New stanza.
5213         (powerpc-ibm-aix[789]*): Default to AIX 7.2.
5214         * config/rs6000/aix71.h (TARGET_DEFAULT): Revert to Power4 ISA.
5215         * config/rs6000/aix72.h: New file.
5216
5217 2018-02-28  Jakub Jelinek  <jakub@redhat.com>
5218
5219         * gimple-ssa-warn-restrict.c (maybe_diag_overlap): Use warning_n
5220         instead of warning_at with conditional singular and plural messages
5221         where possible.
5222
5223         PR target/52991
5224         * stor-layout.c (update_alignment_for_field): For
5225         targetm.ms_bitfield_layout_p (rli->t), if !is_bitfield
5226         && !DECL_PACKED (field), do the alignment update, just use
5227         only desired_align instead of MAX (type_align, desired_align)
5228         as the alignment.
5229         (place_field): Don't do known_align < desired_align handling
5230         early if targetm.ms_bitfield_layout_p (rli->t) and rli->prev_field
5231         is non-NULL, instead do it after rli->prev_field handling and
5232         only if not within a bitfield word.  For DECL_PACKED (field)
5233         use type_align of BITS_PER_UNIT.
5234
5235 2018-02-28  Eric Botcazou  <ebotcazou@adacore.com>
5236
5237         * config/aarch64/aarch64.c (aarch64_emit_probe_stack_range): Remove
5238         superfluous parentheses and trailing spaces.
5239
5240 2018-02-28  Richard Biener  <rguenther@suse.de>
5241
5242         PR tree-optimization/84584
5243         * graphite-scop-detection.c (scop_detection::add_scop): Discard
5244         SCoPs with fake exit edge.
5245
5246 2018-02-28  Martin Liska  <mliska@suse.cz>
5247
5248         PR testsuite/84597
5249         * timevar.c (timer::print): Fix format to properly print 100%
5250         values.
5251
5252 2018-02-28  Richard Biener  <rguenther@suse.de>
5253
5254         PR middle-end/84607
5255         * genmatch.c (capture_info::walk_match): Do not mark
5256         captured expressions without operands as expr_p given
5257         they act more like predicates and should be subject to
5258         "lost tail" side-effect preserving.
5259
5260 2018-02-28  Alexandre Oliva  <aoliva@redhat.com>
5261
5262         PR rtl-optimization/81611
5263         * auto-inc-dec.c (attempt_change): Move dead note from
5264         mem_insn if it's the next use of regno
5265         (find_address): Take address use of reg holding
5266         non-incremented value.  Add parm to limit search to the named
5267         reg only.
5268         (merge_in_block): Attempt to use a mem insn that is the next
5269         use of the original regno.
5270
5271 2018-02-27  Martin Sebor  <msebor@redhat.com>
5272
5273         PR c++/83871
5274         * gcc/doc/invoke.texi (-Wmissing-attributes): New option.
5275         * gcc/print-tree.c (print_node): Handle DECL_UNINLINABLE.
5276
5277 2018-02-27  Martin Sebor  <msebor@redhat.com>
5278
5279         PR translation/84207
5280         * diagnostic-core.h (warning_n, error_n, inform_n): Change
5281         n argument to unsigned HOST_WIDE_INT.
5282         * diagnostic.c (warning_n, error_n, inform_n): Ditto.
5283         (diagnostic_n_impl): Ditto.  Handle arguments in excess of LONG_MAX.
5284         * gimple-ssa-sprintf.c (format_directive): Simplify inform_n call.
5285         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Use warning_n.
5286
5287 2018-02-27  Richard Biener  <rguenther@suse.de>
5288
5289         PR tree-optimization/84512
5290         * tree-vect-loop.c (vect_compute_single_scalar_iteration_cost):
5291         Do not use the estimate returned from record_stmt_cost for
5292         the scalar iteration cost but sum properly using add_stmt_cost.
5293
5294 2018-02-27  Richard Biener  <rguenther@suse.de>
5295
5296         PR tree-optimization/84466
5297         * graphite-scop-detection.c (scop_detection::stmt_simple_for_scop_p):
5298         Adjust last change to less strictly validate use operands.
5299
5300 2018-02-27  Martin Liska  <mliska@suse.cz>
5301
5302         PR gcov-profile/84548
5303         * gcov.c (process_file): Allow partial overlap and consider it
5304         also as group functions.
5305         (output_lines): Properly calculate range of lines for a group.
5306
5307 2018-02-27  Martin Liska  <mliska@suse.cz>
5308
5309         * timevar.c (timer::print_row): Remove 'usr', 'sys', 'wall' and
5310         'ggc' suffixes.  Change first column width.
5311         (timer::print): Fix formatting of the column.
5312
5313 2018-02-27  Alexandre Oliva  <aoliva@redhat.com>
5314
5315         * tree-ssa-live.c (remove_unused_scope_block_p): Do not
5316         preserve inline entry blocks for the sake of debug inline
5317         entry point markers alone.
5318         (remove_unused_locals): Suggest in comments a better place to
5319         force the preservation of inline entry blocks that are
5320         otherwise unused, but do not preserve them.
5321
5322 2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
5323
5324         * config/i386/i386.c (ix86_output_indirect_jmp): Update comments.
5325
5326 2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
5327
5328         PR target/84039
5329         * config/i386/constraints.md (Bs): Replace
5330         ix86_indirect_branch_register with
5331         TARGET_INDIRECT_BRANCH_REGISTER.
5332         (Bw): Likewise.
5333         * config/i386/i386.md (indirect_jump): Likewise.
5334         (tablejump): Likewise.
5335         (*sibcall_memory): Likewise.
5336         (*sibcall_value_memory): Likewise.
5337         Peepholes of indirect call and jump via memory: Likewise.
5338         (*sibcall_GOT_32): Disallowed for TARGET_INDIRECT_BRANCH_REGISTER.
5339         (*sibcall_value_GOT_32): Likewise.
5340         * config/i386/predicates.md (indirect_branch_operand): Likewise.
5341         (GOT_memory_operand): Likewise.
5342         (call_insn_operand): Likewise.
5343         (sibcall_insn_operand): Likewise.
5344         (GOT32_symbol_operand): Likewise.
5345         * config/i386/i386.h (TARGET_INDIRECT_BRANCH_REGISTER): New.
5346
5347 2018-02-26  Eric Botcazou  <ebotcazou@adacore.com>
5348
5349         PR rtl-optimization/83496
5350         * reorg.c (steal_delay_list_from_target): Change REDUNDANT array from
5351         booleans to RTXes.  Call fix_reg_dead_note on every non-null element.
5352         (steal_delay_list_from_fallthrough): Call fix_reg_dead_note on a
5353         redundant insn, if any.
5354         (relax_delay_slots): Likewise.
5355         (update_reg_unused_notes): Rename REDUNDANT_INSN to OTHER_INSN.
5356
5357 2018-02-26  Richard Sandiford  <richard.sandiford@linaro.org>
5358
5359         PR tree-optimization/83965
5360         * tree-vect-patterns.c (vect_reassociating_reduction_p): Assume
5361         that grouped statements are part of a reduction chain.  Return
5362         true if the statement is not marked as a reduction itself but
5363         is part of a group.
5364         (vect_recog_dot_prod_pattern): Don't check whether the statement
5365         is part of a group here.
5366         (vect_recog_sad_pattern): Likewise.
5367         (vect_recog_widen_sum_pattern): Likewise.
5368
5369 2018-02-26  Eric Botcazou  <ebotcazou@adacore.com>
5370
5371         PR debug/84545
5372         * final.c (rest_of_clean_state): Also look for calls inside sequences.
5373
5374 2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
5375
5376         PR target/84530
5377         * config/i386/i386-protos.h (ix86_output_indirect_jmp): Remove
5378         the bool argument.
5379         (ix86_output_indirect_function_return): New prototype.
5380         (ix86_split_simple_return_pop_internal): Likewise.
5381         * config/i386/i386.c (indirect_return_via_cx): New.
5382         (indirect_return_via_cx_bnd): Likewise.
5383         (indirect_thunk_name): Handle return va CX_REG.
5384         (output_indirect_thunk_function): Create alias for
5385         __x86_return_thunk_[re]cx and __x86_return_thunk_[re]cx_bnd.
5386         (ix86_output_indirect_jmp): Remove the bool argument.
5387         (ix86_output_indirect_function_return): New function.
5388         (ix86_split_simple_return_pop_internal): Likewise.
5389         * config/i386/i386.md (*indirect_jump): Don't pass false
5390         to ix86_output_indirect_jmp.
5391         (*tablejump_1): Likewise.
5392         (simple_return_pop_internal): Change it to define_insn_and_split.
5393         Call ix86_split_simple_return_pop_internal to split it for
5394         -mfunction-return=.
5395         (simple_return_indirect_internal): Call
5396         ix86_output_indirect_function_return instead of
5397         ix86_output_indirect_jmp.
5398
5399 2018-02-26  Jakub Jelinek  <jakub@redhat.com>
5400
5401         PR bootstrap/84405
5402         * vec.h (vec_default_construct): For BROKEN_VALUE_INITIALIZATION use
5403         memset and value initialization afterwards.
5404
5405 2018-02-26  Christophe Lyon  <christophe.lyon@linaro.org>
5406
5407         * Makefile.in (lto-wrapper): Use ALL_LINKERFLAGS.
5408
5409 2018-02-26  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
5410
5411         PR target/84521
5412         * common/config/aarch64/aarch64-common.c
5413         (aarch_option_optimization_table[]): Switch
5414         off fomit-frame-pointer
5415
5416 2018-02-26  Kito Cheng  <kito.cheng@gmail.com>
5417             Chung-Ju Wu  <jasonwucj@gmail.com>
5418
5419         * config/nds32/nds32-multiple.md (load_multiple): Disallow
5420         volatile memory.
5421         (store_multiple): Ditto.
5422
5423 2018-02-26  Kito Cheng  <kito.cheng@gmail.com>
5424
5425         * config.gcc: Add --with-cpu support for nds32 target.
5426         * config/nds32/nds32-opts.h (nds32_cpu_type): New.
5427         * config/nds32/nds32.opt: Add -mcpu= option.
5428
5429 2018-02-25  Segher Boessenkool  <segher@kernel.crashing.org>
5430
5431         * config/rs6000/rs6000.opt (mvrsave=no, mvrsave=yes, isel=no,
5432         isel=yes): Warn for these deprecated options.
5433
5434 2018-02-23  David Edelsohn  <dje.gcc@gmail.com>
5435
5436         * config/rs6000/aix71.h (TARGET_DEFAULT): Change to
5437         ISA_2_5_MASKS_EMBEDDED.
5438
5439 2018-02-23  Jakub Jelinek  <jakub@redhat.com>
5440
5441         * ipa-prop.c (ipa_vr_ggc_hash_traits::hash): Hash p->min and
5442         p->max as pointers rather than using iterative_hash_expr.
5443
5444 2018-02-23  Carl Love  <cel@us.ibm.com>
5445
5446         * config/rs6000/rs6000-builtin.def: Change VSIGNED2 and VUNSIGNED2
5447         macro expansions from BU_VSX_2 to BU_P8V_VSX_2 and BU_VSX_OVERLOAD_2 to
5448         BU_P8V_OVERLOAD_2.
5449         * config/rs6000/rs6000-c.c: Change VSX_BUILTIN_VEC_VSIGNED2 to
5450         P8V_BUILTIN_VEC_VSIGNED2.  Change VSX_BUILTIN_VEC_VUNSIGNED2 to
5451         P8V_BUILTIN_VEC_VUNSIGNED2.
5452
5453 2018-02-22  Vladimir Makarov  <vmakarov@redhat.com>
5454
5455         PR target/81572
5456         * lra-int.h (LRA_UNKNOWN_ALT, LRA_NON_CLOBBERED_ALT): New macros.
5457         * lra.c (lra_set_insn_recog_data, lra_update_insn_recog_data): Use
5458         LRA_UNKNOWN_ALT.
5459         * lra-constraints.c (curr_insn_transform): Set up
5460         LRA_NON_CLOBBERED_ALT for moves processed on the fast path.  Use
5461         LRA_UNKNOWN_ALT.
5462         (remove_inheritance_pseudos): Use LRA_UNKNOWN_ALT.
5463         * lra-eliminations.c (spill_pseudos): Ditto.
5464         (process_insn_for_elimination): Ditto.
5465         * lra-lives.c (reg_early_clobber_p): Use the new macros.
5466         * lra-spills.c (spill_pseudos): Use LRA_UNKNOWN_ALT and
5467         LRA_NON_CLOBBERED_ALT.
5468
5469 2018-02-22  Martin Sebor  <msebor@redhat.com>
5470
5471         PR tree-optimization/84480
5472         * gimple-fold.c (gimple_fold_builtin_strcpy): Move warnings
5473         to maybe_diag_stxncpy_trunc.  Call it.
5474         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Integrate warnings
5475         from gimple_fold_builtin_strcpy.  Print inlining stack.
5476         (handle_builtin_stxncpy): Print inlining stack.
5477         * tree-ssa-strlen.h (maybe_diag_stxncpy_trunc): Declare.
5478
5479 2018-02-22  H.J. Lu  <hongjiu.lu@intel.com>
5480
5481         PR target/84176
5482         * config/i386/i386.c (ix86_set_indirect_branch_type): Issue an
5483         error when -mindirect-branch=thunk-extern, -fcf-protection=branch
5484         and -fcheck-pointer-bounds are used together.
5485         (indirect_thunk_prefix): New enum.
5486         (indirect_thunk_need_prefix): New function.
5487         (indirect_thunk_name): Replace need_bnd_p with need_prefix.  Use
5488         "_nt" instead of "_bnd" for NOTRACK prefix.
5489         (output_indirect_thunk): Replace need_bnd_p with need_prefix.
5490         (output_indirect_thunk_function): Likewise.
5491         (): Likewise.
5492         (ix86_code_end): Update output_indirect_thunk_function calls.
5493         (ix86_output_indirect_branch_via_reg): Replace
5494         ix86_bnd_prefixed_insn_p with indirect_thunk_need_prefix.
5495         (ix86_output_indirect_branch_via_push): Likewise.
5496         (ix86_output_function_return): Likewise.
5497         * doc/invoke.texi: Document -mindirect-branch=thunk-extern is
5498         incompatible with -fcf-protection=branch and
5499         -fcheck-pointer-bounds.
5500
5501 2018-02-22  Steve Ellcey  <sellcey@cavium.com>
5502
5503         PR target/83335
5504         * config/aarch64/aarch64.c (aarch64_print_address_internal):
5505         Change gcc_assert call to output_operand_lossage.
5506
5507 2018-02-22  Steve Ellcey  <sellcey@cavium.com>
5508
5509         * doc/extend.texi (__builtin_extend_pointer): Document builtin.
5510
5511 2018-02-22  DJ Delorie  <dj@redhat.com>
5512             Sebastian Perta  <sebastian.perta@renesas.com>
5513             Oleg Endo  <olegendo@gcc.gnu.org>
5514
5515         * config/rx/rx.c (rx_rtx_costs): New function.
5516         (TARGET_RTX_COSTS): Override to use rx_rtx_costs.
5517
5518 2018-02-22  Thomas Preud'homme  <thomas.preudhomme@arm.com>
5519
5520         * config/arm/t-multilib: Map Armv8-R to Armv7 multilibs.
5521
5522 2018-02-22  Martin Liska  <mliska@suse.cz>
5523
5524         PR driver/83193
5525         * common/config/arm/arm-common.c (arm_print_hint_for_cpu_option):
5526         Add "native" as a possible value.
5527
5528 2018-02-22  Martin Liska  <mliska@suse.cz>
5529
5530         PR driver/83193
5531         * config/i386/i386.c (ix86_option_override_internal):
5532         Add "native" as a possible value for -march and -mtune.
5533
5534 2018-02-22  Jakub Jelinek  <jakub@redhat.com>
5535
5536         PR target/84502
5537         * stor-layout.c (finalize_type_size): Propagate TYPE_EMPTY_P flag
5538         to all type variants.
5539
5540         PR tree-optimization/84503
5541         * gimple-ssa-store-merging.c (merged_store_group::merge_into): Compute
5542         width as info->bitpos + info->bitsize - start.
5543         (merged_store_group::merge_overlapping): Simplify width computation.
5544         (check_no_overlap): New function.
5545         (imm_store_chain_info::try_coalesce_bswap): Compute expected
5546         start + width and last_order of the group, fail if check_no_overlap
5547         fails.
5548         (imm_store_chain_info::coalesce_immediate_stores): Don't merge info
5549         to group if check_no_overlap fails.
5550
5551 2018-02-21  Segher Boessenkool  <segher@kernel.crashing.org>
5552
5553         * config/rs6000/altivec.md: Delete contraint arguments to
5554         define_expand, define_split, and define_peephole2, and in
5555         define_insn_and_split if always unused.
5556         * config/rs6000/darwin.md: Ditto.
5557         * config/rs6000/dfp.md: Ditto.
5558         * config/rs6000/rs6000.md: Ditto.
5559         * config/rs6000/sync.md: Ditto.
5560         * config/rs6000/vector.md: Ditto.
5561         * config/rs6000/vsx.md: Ditto.
5562
5563 2018-02-21  Segher Boessenkool  <segher@kernel.crashing.org>
5564
5565         * config/rs6000/altivec.md: Write output control strings as braced
5566         blocks instead of double-quoted strings.
5567         * config/rs6000/darwin.md: Ditto.
5568         * config/rs6000/rs6000.md: Ditto.
5569         * config/rs6000/vector.md: Ditto.
5570         * config/rs6000/vsx.md: Ditto.
5571
5572 2018-02-21  Jason Merrill  <jason@redhat.com>
5573
5574         PR c++/84314 - ICE with templates and fastcall attribute.
5575         * attribs.c (build_type_attribute_qual_variant): Remove assert.
5576
5577 2018-02-21  Jan Hubicka  <hubicka@ucw.cz>
5578
5579         * ipa-cp.c (determine_versionability): Fix comment typos.
5580
5581 2018-02-21  Jan Hubicka  <hubicka@ucw.cz>
5582
5583         PR c/84229
5584         * ipa-cp.c (determine_versionability): Do not version functions caling
5585         va_arg_pack.
5586
5587 2018-02-21  Martin Liska  <mliska@suse.cz>
5588
5589         PR driver/83193
5590         * config/aarch64/aarch64.c (aarch64_print_hint_for_core_or_arch):
5591         Add "native" as a possible value.
5592         * config/aarch64/aarch64.h (HAVE_LOCAL_CPU_DETECT):  Define
5593         the macro when native cpu detection is available.
5594
5595 2018-02-21  Martin Liska  <mliska@suse.cz>
5596
5597         PR driver/83193
5598         * common/config/arm/arm-common.c (arm_print_hint_for_arch_option):
5599         Add "native" as a possible value.
5600         * config/arm/arm.h (HAVE_LOCAL_CPU_DETECT): Define the macro
5601         when native cpu detection is available.
5602
5603 2018-02-21  Jakub Jelinek  <jakub@redhat.com>
5604             Martin Sebor  <msebor@redhat.com>
5605
5606         PR tree-optimization/84478
5607         * gimple-fold.h (get_range_strlen): Add a bool argument defaulted to
5608         false.
5609         * gimple-fold.c (get_range_strlen): Make minlen const and assume it
5610         can't be NULL.  Change FUZZY from bool to int, for 1 add PHI/COND_EXPR
5611         support which is conservatively correct, for 2 only stay conservative
5612         for maxlen.  Formatting and comment capitalization fixes.  Add STRICT
5613         argument to the 2 argument get_range_strlen, adjust 6 arg
5614         get_range_strlen caller and clear minmaxlen[0] and [1] if it returned
5615         false.
5616         (get_maxval_strlen): Adjust 6 arg get_range_strlen caller.
5617         (gimple_fold_builtin_strlen): Pass true as last argument to
5618         get_range_strlen.
5619
5620 2018-02-20  Martin Sebor  <msebor@redhat.com>
5621
5622         PR middle-end/84095
5623         * gimple-ssa-warn-restrict.c (builtin_memref::extend_offset_range): New.
5624         (builtin_memref::set_base_and_offset): Same.  Handle inner references.
5625         (builtin_memref::builtin_memref): Factor out parts into
5626         set_base_and_offset and call it.
5627
5628 2018-02-20  Richard Sandiford  <richard.sandiford@linaro.org>
5629
5630         PR middle-end/84406
5631         * optabs-query.c (find_widening_optab_handler_and_mode): If from_mode
5632         is a scalar_int_mode, assert that to_mode is a scalar_int_mode with
5633         greater precision.  If to_mode is a MODE_PARTIAL_INT, stop the
5634         search at the associated MODE_INT.
5635
5636 2018-02-20  Jeff Law  <law@redhat.com>
5637
5638         PR middle-end/82123
5639         PR tree-optimization/81592
5640         PR middle-end/79257
5641         * gimple-ssa-sprintf.c (format_integer): Query EVRP range analyzer
5642         for range data rather than using global data.
5643         * gimple-ssa-sprintf.c (get_int_range): Query EVRP range analyzer for
5644         range data rather than using global data.
5645         * gimple-ssa-sprintf.c (get_int_range): Accept vr_values parameter
5646         pass it to children as needed.
5647         (struct directive::fmtresult): Similarly.
5648         (struct directive::set_width): Similarly.
5649         (struct directive::set_precision): Similarly.
5650         (format_integer, format_directive, parse_directive): Similarly.
5651         (format_none): Accept unnamed vr_values parameter.
5652         (format_percent, format_floating, format_character): Similarly.
5653         (format_string, format_plain): Similarly.
5654         * gimple-ssa-sprintf.c (sprintf_dom_walker::handle_gimple_call): Query
5655         the EVRP range analyzer for range data rather than using global data.
5656         * gimple-ssa-sprintf.c: Include alloc-pool.h, vr-values.h and
5657         gimple-ssa-evrp-analyze.h
5658         (class sprintf_dom_walker): Add after_dom_children member function.
5659         Add evrp_range_analyzer member.
5660         (sprintf_dom_walker::before_dom_children): Call into the EVRP
5661         range analyzer as needed.
5662         (sprintf_dom_walker::after_dom_children): New member function.
5663         * gimple-ssa-evrp-analyze.c (evrp_range_analyzer::enter): Do nothing
5664         if not optimizing.
5665         (evrp_range_analyzer::record_ranges_from_stmt): Likewise.
5666         (evrp_range_analyzer::pop_to_marker): Likewise.
5667
5668 2018-02-20  Richard Sandiford  <richard.sandiford@linaro.org>
5669
5670         PR tree-optimization/84419
5671         * internal-fn.c (expand_call_mem_ref): Create a TARGET_MEM_REF
5672         with the required type if its current type is compatible but
5673         different.
5674
5675 2018-02-20  Jakub Jelinek  <jakub@redhat.com>
5676
5677         PR middle-end/82004
5678         * match.pd (pow(C,x) -> exp(log(C)*x)): Delay all folding until
5679         after vectorization.
5680
5681 2018-02-20  Martin Liska  <mliska@suse.cz>
5682
5683         PR driver/83193
5684         * config/aarch64/aarch64.c (aarch64_print_hint_for_core_or_arch): Print
5685         possible values if we don't have a hint.
5686
5687 2018-02-20  Martin Liska  <mliska@suse.cz>
5688
5689         PR c/84310
5690         PR target/79747
5691         * final.c (shorten_branches): Build align_tab array with one
5692         more element.
5693         * opts.c (finish_options): Add alignment option limit check.
5694         (MAX_CODE_ALIGN): Likewise.
5695         (MAX_CODE_ALIGN_VALUE): Likewise.
5696         * doc/invoke.texi: Document maximum allowed option value for
5697         all -falign-* options.
5698
5699 2018-02-19  Jakub Jelinek  <jakub@redhat.com>
5700
5701         PR target/84146
5702         * reg-notes.def (REG_CALL_ARG_LOCATION): New reg note.
5703         * insn-notes.def (NOTE_INSN_CALL_ARG_LOCATION): Remove.
5704         * var-tracking.c (emit_note_insn_var_location): Remove all references
5705         to NOTE_INSN_CALL_ARG_LOCATION.
5706         (emit_notes_in_bb): Emit arguments as REG_CALL_ARG_LOCATION note on
5707         the CALL_INSN rather than separate NOTE_INSN_CALL_ARG_LOCATION note.
5708         Use copy_rtx_if_shared.
5709         * dwarf2out.c (gen_subprogram_die): Use XEXP with 0 instead of
5710         NOTE_VAR_LOCATION on ca_loc->call_arg_loc_note.
5711         (dwarf2out_var_location): Remove handling of
5712         NOTE_INSN_CALL_ARG_LOCATION, instead handle REG_CALL_ARG_LOCATION note
5713         on call_insn.
5714         * final.c (final_scan_insn): Remove all references to
5715         NOTE_INSN_CALL_ARG_LOCATION.
5716         (rest_of_clean_state): Likewise.  Remove REG_CALL_ARG_LOCATION notes
5717         before dumping final insns.
5718         * except.c (emit_note_eh_region_end): Remove all references to
5719         NOTE_INSN_CALL_ARG_LOCATION.
5720         * config/alpha/alpha.c (alpha_pad_function_end): Likewise.
5721         * config/c6x/c6x.c (c6x_gen_bundles): Likewise.
5722         * config/arc/arc.c (hwloop_optimize): Likewise.
5723         * config/arm/arm.c (create_fix_barrier): Likewise.
5724         * config/s390/s390.c (s390_chunkify_start): Likewise.
5725         * config/sh/sh.c (find_barrier): Likewise.
5726         * config/i386/i386.c (rest_of_insert_endbranch,
5727         ix86_seh_fixup_eh_fallthru): Likewise.
5728         * config/xtensa/xtensa.c (hwloop_optimize): Likewise.
5729         * config/iq2000/iq2000.c (final_prescan_insn): Likewise.
5730         * config/frv/frv.c (frv_function_prologue): Likewise.
5731         * emit-rtl.c (try_split): Likewise.  Copy over REG_CALL_ARG_LOCATION
5732         reg note.
5733         (note_outside_basic_block_p): Remove all references to
5734         NOTE_INSN_CALL_ARG_LOCATION.
5735         * gengtype.c (adjust_field_rtx_def): Likewise.
5736         * print-rtl.c (rtx_writer::print_rtx_operand_code_0, print_insn):
5737         Likewise.
5738         * jump.c (cleanup_barriers, delete_related_insns): Likewise.
5739         * cfgrtl.c (force_nonfallthru_and_redirect): Likewise.
5740
5741         PR c++/84444
5742         * builtins.c (builtin_mathfn_code): Don't check if CALL_EXPR_FN (t)
5743         is ADDR_EXPR.
5744
5745         PR tree-optimization/84452
5746         * tree-vect-patterns.c (vect_recog_pow_pattern): Don't call
5747         expand_simd_clones if targetm.simd_clone.compute_vecsize_and_simdlen
5748         is NULL.
5749
5750 2018-02-19  Martin Liska  <mliska@suse.cz>
5751
5752         PR sanitizer/82183
5753         * passes.def: Put pass_sancov_O0 before pass_lower_switch with -O0.
5754
5755 2018-02-19  Martin Liska  <mliska@suse.cz>
5756             Richard Sandiford  <richard.sandiford@linaro.org>
5757
5758         PR tree-optimization/82491
5759         * gimple-fold.c (get_base_constructor): Make earlier bail out
5760         to prevent ubsan.
5761
5762 2018-02-19  Carl Love  <cel@us.ibm.com>
5763
5764         * config/rs6000/rs6000-builtin.def: Change NEG macro expansions from
5765         BU_ALTIVEC_A to BU_P8V_AV_1 and BU_ALTIVEC_OVERLOAD_1 to
5766         BU_P8V_OVERLOAD_1.
5767         * config/rs6000/rs6000-c.c: Change ALTIVEC_BUILTIN_VEC_NEG to
5768         P8V_BUILTIN_VEC_NEG.
5769
5770 2018-02-19  Sebastian Perta  <sebastian.perta@renesas.com>
5771
5772         * config/rl78/rl78.md (movdf): New define expand.
5773
5774 2018-02-19  Martin Liska  <mliska@suse.cz>
5775
5776         PR other/80589
5777         * doc/invoke.texi: Fix typo.
5778         * params.def (PARAM_MAX_LOOP_HEADER_INSNS): Likewise.
5779
5780 2018-02-18  Segher Boessenkool  <segher@kernel.crashing.org>
5781
5782         * config/rs6000/rs6000.c (rs6000_option_override_internal): Don't
5783         handle rs6000_single_float and rs6000_double_float specially for
5784         e500 family CPUs.
5785
5786 2018-02-16  Jeff Law  <law@redhat.com>
5787
5788         * config/rx/rx.c (add_pop_cfi_notes): New function.;
5789         (pop_regs): Use it.
5790
5791 2018-02-16  Jakub Jelinek  <jakub@redhat.com>
5792
5793         PR ipa/84425
5794         * ipa-inline.c (inline_small_functions): Fix a typo.
5795
5796 2018-02-16  Nathan Sidwell  <nathan@acm.org>
5797
5798         * doc/extend.texi (Backwards Compatibility): Americanize 'behaviour'.
5799
5800 2018-02-16  Carl Love  <cel@us.ibm.com>
5801
5802         * config/rs6000/rs6000-builtin.def: Add BU_P8V_VSX_2 macro definition.
5803         Change FLOAT2 expansions from BU_VSX_2 to BU_P8V_VSX_2 and
5804         from BU_VSX_OVERLOAD_2 to BU_P8V_OVERLOAD_2.
5805         * config/rs6000/rs6000-c.c: Changed macro VSX_BUILTIN_VEC_FLOAT2
5806         expansion to P8V_BUILTIN_VEC_FLOAT2.
5807
5808 2018-02-16  Vladimir Makarov  <vmakarov@redhat.com>
5809
5810         PR rtl-optimization/70023
5811         * lra-constraints.c (inherit_in_ebb): Take hard reg mode of
5812         src_regno into account.
5813
5814 2018-02-16  Carl Love  <cel@us.ibm.com>
5815
5816         * config/rs6000/altivec.h: Remove vec_vextract4b and vec_vinsert4b.
5817         * config/rs6000/rs6000-builtin.def: Remove macro expansion for
5818         VEXTRACT4B, VINSERT4B, VINSERT4B_DI and VEXTRACT4B.
5819         * config/rs6000/rs6000.c: Remove case statements for
5820         P9V_BUILTIN_VEXTRACT4B, P9V_BUILTIN_VEC_VEXTRACT4B,
5821         P9V_BUILTIN_VINSERT4B, P9V_BUILTIN_VINSERT4B_DI,
5822         and P9V_BUILTIN_VEC_VINSERT4B.
5823         * config/rs6000/rs6000-c.c (altivec_expand_builtin): Remove entries for
5824         P9V_BUILTIN_VEC_VEXTRACT4B and P9V_BUILTIN_VEC_VINSERT4B.
5825         * config/rs6000/vsx.md:
5826         * doc/extend.texi: Remove vec_vextract4b, non ABI definitions for
5827         vec_insert4b.
5828
5829 2018-02-16  Carl Love  <cel@us.ibm.com>
5830
5831         * config/rs6000/altivec.h: Add builtin names vec_extract4b
5832         vec_insert4b.
5833         * config/rs6000/rs6000-builtin.def: Add INSERT4B and EXTRACT4B
5834         definitions.
5835         * config/rs6000/rs6000-c.c: Add the definitions for
5836         P9V_BUILTIN_VEC_EXTRACT4B and P9V_BUILTIN_VEC_INSERT4B.
5837         * config/rs6000/rs6000.c (altivec_expand_builtin): Add
5838         P9V_BUILTIN_EXTRACT4B and P9V_BUILTIN_INSERT4B case statements.
5839         * config/rs6000/vsx.md: Add define_insn extract4b.  Add define_expand
5840         definition for insert4b and define insn *insert3b_internal.
5841         * doc/extend.texi: Add documentation for vec_extract4b.
5842
5843 2018-02-16  Nathan Sidwell  <nathan@acm.org>
5844
5845         * doc/extend.texi (Backwards Compatibility): Mention friend
5846         injection.  Note for-scope is deprecated.
5847         * doc/invoke.texi (-ffriend-injection): Deprecate.
5848
5849 2018-02-16  Segher Boessenkool  <segher@kernel.crashing.org>
5850
5851         * combine.c (try_combine): When adjusting LOG_LINKS for the destination
5852         that moved to I2, also allow destinations that are a paradoxical
5853         subreg (instead of a normal reg).
5854
5855 2018-02-16  Oleg Endo  <olegendo@gcc.gnu.org>
5856
5857         PR target/83831
5858         * config/rx/rx.c (rx_fuse_in_memory_bitop): Convert shift operand
5859         to QImode.
5860
5861 2018-02-16  Richard Biener  <rguenther@suse.de>
5862
5863         PR tree-optimization/84037
5864         PR tree-optimization/84016
5865         PR target/82862
5866         * config/i386/i386.c (ix86_builtin_vectorization_cost):
5867         Adjust vec_construct for the fact we need additional higher latency
5868         128bit inserts for AVX256 and AVX512 vector builds.
5869         (ix86_add_stmt_cost): Scale vector construction cost for
5870         elementwise loads.
5871
5872 2018-02-16  Richard Biener  <rguenther@suse.de>
5873
5874         PR tree-optimization/84417
5875         * tree-ssa.c (non_rewritable_mem_ref_base): Properly constrain
5876         the MEM_REF offset when conversion to BIT_FIELD_REF is desired.
5877         (non_rewritable_lvalue_p): Likewise, use poly-ints.
5878
5879 2018-02-16  Martin Liska  <mliska@suse.cz>
5880
5881         PR sanitizer/84307
5882         * internal-fn.def (ASAN_CHECK): Set proper flags.
5883         (ASAN_MARK): Likewise.
5884
5885 2018-02-16  Julia Koval  <julia.koval@intel.com>
5886
5887         * config/i386/i386.c (ix86_option_override_internal): Remove PTA_CLWB
5888         from PTA_CANNONLAKE.
5889
5890 2018-02-16  Jakub Jelinek  <jakub@redhat.com>
5891
5892         PR target/84272
5893         * config/aarch64/cortex-a57-fma-steering.c (fma_forest::merge_forest):
5894         Use ++iter rather than iter++ for std::list iterators.
5895         (func_fma_steering::dfs): Likewise.  Don't delete nodes right away,
5896         defer deleting them until all nodes in the forest are processed.  Do
5897         free even leaf nodes.  Change to_process into auto_vec.
5898
5899         PR bootstrap/84405
5900         * system.h (BROKEN_VALUE_INITIALIZATION): Define for GCC < 4.3.
5901         * vec.h (vec_default_construct): Use memset instead of placement new
5902         if BROKEN_VALUE_INITIALIZATION is defined.
5903         * hash-table.h (hash_table<Descriptor, Allocator>::empty_slow): Use
5904         memset instead of value initialization if BROKEN_VALUE_INITIALIZATION
5905         is defined.
5906
5907         PR rtl-optimization/83723
5908         * lra-int.h (lra_substitute_pseudo): Add DEBUG_P argument.
5909         * lra.c (lra_substitute_pseudo): Likewise.  If true, use
5910         gen_rtx_raw_SUBREG instead of gen_rtx_SUBREG.  Pass DEBUG_P to
5911         recursive calls.
5912         (lra_substitute_pseudo_within_insn): Adjust lra_substitute_pseudo
5913         callers.
5914         * lra-constraints.c (inherit_reload_reg, split_reg): Likewise.
5915
5916 2018-02-16  Eric Botcazou  <ebotcazou@adacore.com>
5917
5918         PR rtl-optimization/81443
5919         * rtlanal.c (num_sign_bit_copies1) <SUBREG>: Do not propagate results
5920         from inner REGs to paradoxical SUBREGs.
5921
5922 2018-02-16  Richard Biener  <rguenther@suse.de>
5923
5924         PR tree-optimization/84399
5925         * graphite-scop-detection.c (scop_detection::stmt_simple_for_scop_p):
5926         For operands we can analyze at their definition make sure we can
5927         analyze them at each use as well.
5928
5929 2018-02-16  Richard Biener  <rguenther@suse.de>
5930
5931         PR tree-optimization/84190
5932         * tree-ssa.c (non_rewritable_mem_ref_base): Do not touch
5933         volatile accesses if the decl isn't volatile.
5934
5935 2018-02-15  Jason Merrill  <jason@redhat.com>
5936
5937         PR c++/84314 - ICE with templates and fastcall attribute.
5938         * attribs.c (build_type_attribute_qual_variant): Don't clobber
5939         TYPE_CANONICAL on an existing type.
5940
5941 2018-02-15  Jakub Jelinek  <jakub@redhat.com>
5942
5943         PR tree-optimization/84383
5944         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Don't look at
5945         dstoff nor call operand_equal_p if dstbase is NULL.
5946
5947         PR tree-optimization/84334
5948         * match.pd ((A +- CST1) +- CST2 -> A + CST3): If A is
5949         also a CONSTANT_CLASS_P, punt.
5950
5951 2018-02-14  Jim Wilson  <jimw@sifive.com>
5952
5953         * config/riscv/riscv.c (riscv_first_stack_step): Move locals after
5954         first SMALL_OPERAND check.  New local min_second_step.  Move assert
5955         to where locals are set.  Add TARGET_RVC support.
5956         * config/riscv/riscv.h (C_SxSP_BITS, SWSP_REACH, SDSP_REACH): New.
5957
5958 2018-02-14  Indu Bhagat  <indu.bhagat@oracle.com>
5959
5960         * doc/invoke.texi: Correct -Wformat-overflow code sample.
5961
5962 2018-02-14  Martin Sebor  <msebor@redhat.com>
5963
5964         PR tree-optimization/83698
5965         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): For
5966         arrays constrain the offset range to their bounds.
5967         (builtin_access::strcat_overlap): Adjust the bounds of overlap offset.
5968         (builtin_access::overlap): Avoid setting the size of overlap if it's
5969         already been set.
5970         (maybe_diag_overlap): Also consider arrays when deciding what values
5971         of offsets to include in diagnostics.
5972
5973 2018-02-14  Martin Sebor  <msebor@redhat.com>
5974
5975         PR c/84108
5976         * attribs.c (diag_attr_exclusions): Consider the exclusion(s)
5977         that correspond to the kind of a declaration.
5978
5979 2018-02-14  John David Anglin  <danglin@gcc.gnu.org>
5980
5981         PR target/83984
5982         * config/pa/pa.md: Load address of PIC label using the linkage table
5983         if the label is nonlocal.
5984
5985 2018-02-14  Kelvin Nilsen  <kelvin@gcc.gnu.org>
5986
5987         * config/rs6000/rs6000.c (rs6000_option_override_internal): Issue
5988         warning message if user requests -maltivec=be.
5989         * doc/invoke.texi: Document deprecation of -maltivec=be.
5990
5991 2018-02-14  Will Schmidt  <will_schmidt@vnet.ibm.com>
5992
5993         PR target/84220
5994         * config/rs6000/rs6000-c.c: Update definitions for
5995         ALTIVEC_BUILTIN_VEC_SLD, ALTIVEC_BUILTIN_VEC_SLDW,
5996         VEC_XXSLDWI and ALTIVEC_BUILTIN_VEC_XXPERMDI builtins.
5997
5998 2018-02-14  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
5999
6000         PR target/84239
6001         * config/i386/cetintrin.h: Remove _rdssp[d|q] and
6002         add _get_ssp intrinsics. Remove argument from
6003         __builtin_ia32_rdssp[d|q].
6004         * config/i386/i386-builtin-types.def: Add UINT_FTYPE_VOID.
6005         * config/i386/i386-builtin.def: Remove argument from
6006         __builtin_ia32_rdssp[d|q].
6007         * config/i386/i386.c: Use UINT_FTYPE_VOID. Use
6008         ix86_expand_special_args_builtin for _rdssp[d|q].
6009         * config/i386/i386.md: Remove argument from rdssp[si|di] insn.
6010         Clear register before usage.
6011         * doc/extend.texi: Remove argument from __builtin_ia32_rdssp[d|q].
6012         Add documentation for new _get_ssp and _inc_ssp intrinsics.
6013
6014 2018-02-14  Richard Sandiford  <richard.sandiford@linaro.org>
6015
6016         PR tree-optimization/84357
6017         * tree-data-ref.c (object_address_invariant_in_loop_p): Check
6018         operand 1 of an ARRAY_REF too.
6019
6020 2018-02-14  Oleg Endo  <olegendo@gcc.gnu.org>
6021
6022         PR target/83831
6023         * config/rx/rx-protos.h (rx_reg_dead_or_unused_after_insn,
6024         rx_copy_reg_dead_or_unused_notes, rx_fuse_in_memory_bitop): New
6025         declarations.
6026         (set_of_reg): New struct.
6027         (rx_find_set_of_reg, rx_find_use_of_reg): New functions.
6028         * config/rx/rx.c (rx_reg_dead_or_unused_after_insn,
6029         rx_copy_reg_dead_or_unused_notes, rx_fuse_in_memory_bitop): New
6030         functions.
6031         * config/rx/rx.md (andsi3, iorsi3, xorsi3): Convert to insn_and_split.
6032         Split into bitclr, bitset, bitinvert patterns if appropriate.
6033         (*bitset, *bitinvert, *bitclr): Convert to named insn_and_split and
6034         use rx_fuse_in_memory_bitop.
6035         (*bitset_in_memory, *bitinvert_in_memory, *bitclr_in_memory): Convert
6036         to named insn, correct maximum insn length.
6037
6038 2018-02-14  Jozef Lawrynowicz  <jozefl.gcc@gmail.com>
6039
6040         PR target/79242
6041         * machmode.def: Define a complex mode for PARTIAL_INT.
6042         * genmodes.c (complex_class): Return MODE_COMPLEX_INT for
6043         MODE_PARTIAL_INT.
6044         * doc/rtl.texi: Document CSPImode.
6045         * config/msp430/msp430.c (msp430_hard_regno_nregs): Add CPSImode
6046         handling.
6047         (msp430_hard_regno_nregs_with_padding): Likewise.
6048
6049 2018-02-13  Peter Bergner  <bergner@vnet.ibm.com>
6050
6051         PR target/84279
6052         * config/rs6000/rs6000.c (mem_operand_gpr): Disallow altivec addresses.
6053
6054 2018-02-13  Segher Boessenkool  <segher@kernel.crashing.org>
6055
6056         PR rtl-optimization/84169
6057         * combine.c (try_combine): New variable split_i2i3.  Set it to true if
6058         we generated a parallel as new i3 and we split that to new i2 and i3
6059         instructions.  Handle split_i2i3 similar to swap_i2i3: scan the
6060         LOG_LINKs of i3 to see which of those need to link to i2 now.  Link
6061         those to i2, not i1.  Partially rewrite this scan code.
6062
6063 2018-02-13  Jakub Jelinek  <jakub@redhat.com>
6064
6065         PR c/82210
6066         * stor-layout.c (place_field): For variable length fields, adjust
6067         offset_align afterwards not just based on the field's alignment,
6068         but also on the size.
6069
6070         PR middle-end/84309
6071         * match.pd (pow(C,x) -> exp(log(C)*x)): Use exp2s and log2s instead
6072         of exps and logs in the use_exp2 case.
6073
6074 2018-02-13  Jeff Law  <law@redhat.com>
6075
6076         * config/rl/rl78.c (rl78_attribute_table): Fix terminator and
6077         entry for "vector".
6078
6079         * config/rl78/rl78.c (rl78_handle_func_attribute): Mark
6080         ARGS as unused.
6081
6082 2018-02-13  Alexandre Oliva  <aoliva@redhat.com>
6083
6084         PR debug/84342
6085         PR debug/84319
6086         * common.opt (gas-loc-support, gas-locview-support): New.
6087         (ginline-points, ginternal-reset-location-views): New.
6088         * doc/invoke.texi: Document them.  Use @itemx where intended.
6089         (gvariable-location-views): Adjust.
6090         * target.def (reset_location_view): New.
6091         * doc/tm.texi.in (DWARF2_ASM_VIEW_DEBUG_INFO): New.
6092         (TARGET_RESET_LOCATION_VIEW): New.
6093         * doc/tm.texi: Rebuilt.
6094         * dwarf2out.c (dwarf2out_default_as_loc_support): New.
6095         (dwarf2out_default_as_locview_support): New.
6096         (output_asm_line_debug_info): Use option variables.
6097         (dwarf2out_maybe_output_loclist_view_pair): Likewise.
6098         (output_loc_list): Likewise.
6099         (add_high_low_attributes): Check option variables.
6100         Don't output entry view attribute in strict mode.
6101         (gen_inlined_subroutine_die): Check option variables.
6102         (dwarf2out_inline_entry): Likewise.
6103         (init_sections_and_labels): Likewise.
6104         (dwarf2out_early_finish): Likewise.
6105         (maybe_reset_location_view): New, from...
6106         (dwarf2out_var_location): ... here.  Call it.
6107         * debug.h (dwarf2out_default_as_loc_support): Declare.
6108         (dwarf2out_default_as_locview_support): Declare.
6109         * hooks.c (hook_int_rtx_insn_0): New.
6110         * hooks.h (hook_int_rtx_insn_0): Declare.
6111         * toplev.c (process_options): Take -gas-loc-support and
6112         -gas-locview-support from dwarf2out.  Enable
6113         -gvariable-location-views by default only with locview
6114         assembler support.  Enable -ginternal-reset-location-views by
6115         default only if the target defines the corresponding hook.
6116         Enable -ginline-points by default if location views are
6117         enabled; force it disabled if statement frontiers are
6118         disabled.
6119         * tree-inline.c (expand_call_inline): Check option variables.
6120         * tree-ssa-live.c (remove_unused_scope_block_p): Likewise.
6121
6122 2018-02-13  Richard Sandiford  <richard.sandiford@linaro.org>
6123
6124         PR tree-optimization/84321
6125         * tree-vrp.c (intersect_range_with_nonzero_bits): Fix VR_ANTI_RANGE
6126         handling.  Also check whether the anti-range contains any values
6127         that satisfy the mask; switch to a VR_RANGE if not.
6128
6129 2018-02-13  Paolo Bonzini  <bonzini@gnu.org>
6130
6131         PR sanitizer/84340
6132         * internal-fn.def (ASAN_CHECK, ASAN_MARK): Revert changes to fnspec.
6133
6134 2018-02-13  Martin Jambor  <mjambor@suse.cz>
6135
6136         PR c++/83990
6137         * ipa-param-manipulation.c (ipa_modify_call_arguments): Use location
6138         of call statements, also set location of a load to a temporary.
6139
6140 2018-02-13  Sebastian Perta  <sebastian.perta@renesas.com>
6141
6142         * config/rl78/rl78.c (add_vector_labels): New function.
6143         * config/rl78/rl78.c (rl78_handle_vector_attribute): New function.
6144         * config/rl78/rl78.c (rl78_start_function): Call add_vector_labels.
6145         * config/rl78/rl78.c (rl78_handle_func_attribute): Removed the assert
6146         which checks that no arguments are passed.
6147         * config/rl78/rl78.c (rl78_attribute_table): Add "vector" attribute.
6148         * doc/extend.texi: Documentation for the new attribute.
6149
6150 2018-02-13  Andreas Schwab  <schwab@suse.de>
6151
6152         * config/riscv/linux.h (CPP_SPEC): Define.
6153
6154 2018-02-13  Jakub Jelinek  <jakub@redhat.com>
6155
6156         PR target/84335
6157         * config/i386/i386.c (ix86_init_mmx_sse_builtins): Pass
6158         OPTION_MASK_ISA_AES | OPTION_MASK_ISA_SSE2 instead of
6159         OPTION_MASK_ISA_AES as first argument to def_builtin_const
6160         for AES builtins.  Pass OPTION_MASK_ISA_PCLMUL | OPTION_MASK_ISA_SSE2
6161         instead of OPTION_MASK_ISA_PCLMUL as first argument to
6162         def_builtin_const for __builtin_ia32_pclmulqdq128 builtin.
6163         * config/i386/wmmintrin.h: If __SSE2__ is not defined, enable it
6164         temporarily for AES and PCLMUL builtins.
6165
6166         PR tree-optimization/84339
6167         * gimple-fold.c (get_range_strlen): Set *FLEXP to true when handling
6168         ARRAY_REF where first operand is array_at_struct_end_p COMPONENT_REF.
6169         Formatting fixes.
6170
6171         PR middle-end/84309
6172         * match.pd (pow(C,x) -> exp(log(C)*x)): Optimize instead into
6173         exp2(log2(C)*x) if C is a power of 2 and c99 runtime is available.
6174         * generic-match-head.c (canonicalize_math_after_vectorization_p): New
6175         inline function.
6176         * gimple-match-head.c (canonicalize_math_after_vectorization_p): New
6177         inline function.
6178         * omp-simd-clone.h: New file.
6179         * omp-simd-clone.c: Include omp-simd-clone.h.
6180         (expand_simd_clones): No longer static.
6181         * tree-vect-patterns.c: Include fold-const-call.h, attribs.h,
6182         cgraph.h and omp-simd-clone.h.
6183         (vect_recog_pow_pattern): Optimize pow(C,x) to exp(log(C)*x).
6184         (vect_recog_widen_shift_pattern): Formatting fix.
6185         (vect_pattern_recog_1): Don't check optab for calls.
6186
6187         PR target/84336
6188         * config/i386/sse.md (<avx512>_vpermi2var<mode>3_mask): Force
6189         operands[2] into a REG before using gen_lowpart on it.
6190
6191 2018-02-12  Jeff Law  <law@redhat.com>
6192
6193         PR target/83760
6194         * config/sh/sh.c (find_barrier): Consider a sibling call
6195         a barrier as well.
6196
6197         * cse.c (try_back_substitute_reg): Move any REG_ARGS_SIZE note when
6198         successfully back substituting a reg.
6199
6200 2018-02-12  Richard Biener  <rguenther@suse.de>
6201
6202         PR tree-optimization/84037
6203         * tree-vect-slp.c (vect_analyze_slp_cost): Add visited
6204         parameter, move visited init to caller.
6205         (vect_slp_analyze_operations): Separate cost from validity
6206         check, initialize visited once for all instances.
6207         (vect_schedule_slp): Analyze map to CSE vectorized nodes once
6208         for all instances.
6209         * tree-vect-stmts.c (vect_model_simple_cost): Make early
6210         out an assert.
6211         (vect_model_promotion_demotion_cost): Likewise.
6212         (vectorizable_bswap): Guard cost modeling with !slp_node
6213         instead of !PURE_SLP_STMT to avoid double-counting on hybrid
6214         SLP stmts.
6215         (vectorizable_call): Likewise.
6216         (vectorizable_conversion): Likewise.
6217         (vectorizable_assignment): Likewise.
6218         (vectorizable_shift): Likewise.
6219         (vectorizable_operation): Likewise.
6220         (vectorizable_store): Likewise.
6221         (vectorizable_load): Likewise.
6222         (vectorizable_condition): Likewise.
6223         (vectorizable_comparison): Likewise.
6224
6225 2018-02-12  Paolo Bonzini  <bonzini@gnu.org>
6226
6227         PR sanitizer/84307
6228         * internal-fn.def (ASAN_CHECK): Fix fnspec to account for return value.
6229         (ASAN_MARK): Fix fnspec to account for return value, change pointer
6230         argument from 'R' to 'W' so that the pointed-to datum is clobbered.
6231
6232 2018-02-08  Jan Hubicka  <hubicka@ucw.cz>
6233
6234         PR middle-end/83665
6235         * params.def (inline-min-speedup): Increase from 8 to 15.
6236         (max-inline-insns-auto): Decrease from 40 to 30.
6237         * ipa-split.c (consider_split): Add some buffer for function to
6238         be considered inlining candidate.
6239         * invoke.texi (max-inline-insns-auto, inline-min-speedup): UPdate
6240         default values.
6241
6242 2018-02-12  Richard Biener  <rguenther@suse.de>
6243
6244         PR tree-optimization/84037
6245         * tree-vect-slp.c (vect_build_slp_tree_2): Try swapping the
6246         matched stmts if we cannot swap the non-matched ones.
6247
6248 2018-02-12  Olga Makhotina  <olga.makhotina@intel.com>
6249
6250         * config/i386/avx512fintrin.h (_mm_mask_scalef_round_sd,
6251         _mm_maskz_scalef_round_sd, _mm_mask_scalef_round_ss,
6252         _mm_maskz_scalef_round_ss): New intrinsics.
6253         (__builtin_ia32_scalefsd_round, __builtin_ia32_scalefss_round): Fix.
6254         * config/i386/i386-builtin.def (__builtin_ia32_scalefsd_round,
6255         __builtin_ia32_scalefss_round): Remove.
6256         (__builtin_ia32_scalefsd_mask_round,
6257         __builtin_ia32_scalefss_mask_round): New intrinsics.
6258         * config/i386/sse.md (vmscalef<mode><round_name>): Renamed to ...
6259         (vmscalef<mode><mask_scalar_name><round_scalar_name>): ... this.
6260         ((match_operand:VF_128 2 "<round_nimm_predicate>"
6261         "<round_constraint>")): Changed to ...
6262         ((match_operand:VF_128 2 "<round_scalar_nimm_predicate>"
6263         "<round_scalar_constraint>")): ... this.
6264         ("vscalef<ssescalarmodesuffix>\t{<round_op3>%2, %1, %0|
6265         %0, %1, %2<round_op3>}"): Changed to ...
6266         ("vscalef<ssescalarmodesuffix>\t{<round_scalar_mask_op3>%2, %1,
6267         %0<mask_scalar_operand3>|%0<mask_scalar_operand3>, %1,
6268         %2<round_scalar_mask_op3>}"): ... this.
6269         * config/i386/subst.md (round_scalar_nimm_predicate): New.
6270
6271 2018-02-12  Olga Makhotina  <olga.makhotina@intel.com>
6272
6273         * config/i386/avx512fintrin.h (_mm_mask_sqrt_round_sd)
6274         (_mm_maskz_sqrt_round_sd, _mm_mask_sqrt_round_ss)
6275         (_mm_maskz_sqrt_round_ss): New intrinsics.
6276         (__builtin_ia32_sqrtsd_round, __builtin_ia32_sqrtss_round): Remove.
6277         (__builtin_ia32_sqrtsd_mask_round)
6278         (__builtin_ia32_sqrtss_mask_round): New builtins.
6279         * config/i386/i386-builtin.def (__builtin_ia32_sqrtsd_round)
6280         (__builtin_ia32_sqrtss_round): Remove.
6281         (__builtin_ia32_sqrtsd_mask_round)
6282         (__builtin_ia32_sqrtss_mask_round): New builtins.
6283         * config/i386/sse.md (vmsqrt<mode>2<round_name>): Renamed to ...
6284         (vmsqrt<mode>2<mask_scalar_name><round_scalar_name>): ... this.
6285         ((match_operand:VF_128 1 "vector_operand"
6286         "xBm,<round_constraint>")): Changed to ...
6287         ((match_operand:VF_128 1 "vector_operand"
6288         "xBm,<round_scalar_constraint>")): ... this.
6289         (vsqrt<ssescalarmodesuffix>\t{<round_op3>%1, %2, %0|
6290         %0, %2, %<iptr>1<round_op3>}): Changed to ...
6291         (vsqrt<ssescalarmodesuffix>\t{<round_scalar_mask_op3>%1, %2,
6292         %0<mask_scalar_operand3>|%0<mask_scalar_operand3>, %2,
6293         %<iptr>1<round_scalar_mask_op3>}): ... this.
6294         ((set_attr "prefix" "<round_prefix>")): Changed to ...
6295         ((set_attr "prefix" "<round_scalar_prefix>")): ... this.
6296
6297 2018-02-11  Steven Munroe  <munroesj@gcc.gnu.org>
6298
6299         PR target/84266
6300         * config/rs6000/mmintrin.h (_mm_cmpeq_pi32 [_ARCH_PWR9]):
6301         Cast vec_cmpeq result to correct type.
6302         * config/rs6000/mmintrin.h (_mm_cmpgt_pi32 [_ARCH_PWR9]):
6303         Cast vec_cmpgt result to correct type.
6304
6305 2018-02-11  Alexandre Oliva  <aoliva@redhat.com>
6306
6307         * final.c (final_scan_insn_1): Renamed from...
6308         (final_scan_insn): ... this.  New wrapper, to recover
6309         seen from the outermost call in recursive ones.
6310         * config/sparc/sparc.c (output_return): Drop seen from call.
6311         (output_sibcall): Likewise.
6312         * config/visium/visium.c (output_branch): Likewise.
6313
6314 2018-02-10  John David Anglin  <danglin@gcc.gnu.org>
6315
6316         * config/pa/pa.c (hppa_profile_hook): Mark SYMBOL_REF for _mcount as
6317         function label.
6318
6319 2018-02-10  Alan Modra  <amodra@gmail.com>
6320
6321         PR target/84300
6322         * config/rs6000/rs6000.md (split_stack_return): Remove (use ..).
6323         Specify LR as an input.
6324
6325 2018-02-10  Jakub Jelinek  <jakub@redhat.com>
6326
6327         PR sanitizer/83987
6328         * omp-low.c (maybe_remove_omp_member_access_dummy_vars,
6329         remove_member_access_dummy_vars): New functions.
6330         (lower_omp_for, lower_omp_taskreg, lower_omp_target,
6331         lower_omp_1, execute_lower_omp): Use them.
6332
6333         PR rtl-optimization/84308
6334         * shrink-wrap.c (spread_components): Release todo vector.
6335
6336 2018-02-09  Vladimir Makarov  <vmakarov@redhat.com>
6337
6338         PR rtl-optimization/57193
6339         * ira-color.c (struct allocno_color_data): Add member
6340         conflict_allocno_hard_prefs.
6341         (update_conflict_allocno_hard_prefs): New.
6342         (bucket_allocno_compare_func): Add a preference based on
6343         conflict_allocno_hard_prefs.
6344         (push_allocno_to_stack): Update conflict_allocno_hard_prefs.
6345         (color_allocnos): Remove a dead code.  Initiate
6346         conflict_allocno_hard_prefs.  Call update_costs_from_prefs.
6347
6348 2018-02-09  Jakub Jelinek  <jakub@redhat.com>
6349
6350         PR target/84226
6351         * config/rs6000/vsx.md (p9_xxbrq_v16qi): Change input operand
6352         constraint from =wa to wa.  Avoid a subreg on the output operand,
6353         instead use a pseudo and subreg it in a move.
6354         (p9_xxbrd_<mode>): Changed to ...
6355         (p9_xxbrd_v2di): ... this insn, without VSX_D iterator.
6356         (p9_xxbrd_v2df): New expander.
6357         (p9_xxbrw_<mode>): Changed to ...
6358         (p9_xxbrw_v4si): ... this insn, without VSX_W iterator.
6359         (p9_xxbrw_v4sf): New expander.
6360
6361 2018-02-09  Sebastian Perta  <sebastian.perta@renesas.com>
6362
6363         * config/rx/rx.md (movsicc): Update expander to be matched by GCC.
6364
6365 2018-02-09  Peter Bergner  <bergner@vnet.ibm.com>
6366
6367         PR target/83926
6368         * config/rs6000/vsx.md (vsx_mul_v2di): Handle generating a 64-bit
6369         multiply in 32-bit mode.
6370         (vsx_div_v2di): Handle generating a 64-bit signed divide in 32-bit mode.
6371         (vsx_udiv_v2di): Handle generating a 64-bit unsigned divide in 32-bit
6372         mode.
6373
6374 2018-02-09  Sebastian Perta  <sebastian.perta@renesas.com>
6375
6376         * config/rx/constraints.md (CALL_OP_SYMBOL_REF): Added new constraint
6377         to allow or block "symbol_ref" depending on the value of TARGET_JSR.
6378         * config/rx/rx.md (call_internal): Use CALL_OP_SYMBOL_REF.
6379         * config/rx/rx.md (call_value_internal): Use CALL_OP_SYMBOL_REF.
6380
6381 2018-02-09  Pierre-Marie de Rodat  <derodat@adacore.com>
6382
6383         PR lto/84213
6384         * dwarf2out.c (is_trivial_indirect_ref): New function.
6385         (dwarf2out_late_global_decl): Do not generate a location
6386         attribute for variables that have a non-trivial DECL_VALUE_EXPR
6387         and that are not defined in the current unit.
6388
6389 2018-02-09  Eric Botcazou  <ebotcazou@adacore.com>
6390
6391         * optabs.c (prepare_cmp_insn): Try harder to emit a direct comparison
6392         instead of a libcall for UNORDERED.
6393
6394 2018-02-09  Tamar Christina  <tamar.christina@arm.com>
6395
6396         PR target/82641
6397         * config/arm/arm-c.c (arm_cpu_builtins): Un-define __ARM_FEATURE_LDREX,
6398         __ARM_ARCH_PROFILE, __ARM_ARCH_ISA_THUMB, __ARM_FP and __ARM_NEON_FP.
6399
6400 2018-02-09  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
6401
6402         PR target/PR84295
6403         * config/s390/s390.c (s390_set_current_function): Invoke
6404         s390_indirect_branch_settings also if fndecl didn't change.
6405
6406 2018-02-09  Alexandre Oliva  <aoliva@redhat.com>
6407
6408         * config/rs6000/rs6000.md (blockage): Set length to zero.
6409
6410 2018-02-09  Eric Botcazou  <ebotcazou@adacore.com>
6411
6412         * expr.c (optimize_bitfield_assignment_op): Remove obsolete assertion.
6413
6414 2018-02-09  Jakub Jelinek  <jakub@redhat.com>
6415
6416         PR sanitizer/84285
6417         * gcc.c (STATIC_LIBASAN_LIBS, STATIC_LIBTSAN_LIBS,
6418         STATIC_LIBLSAN_LIBS, STATIC_LIBUBSAN_LIBS): Handle -static like
6419         -static-lib*san.
6420
6421         PR debug/84252
6422         * var-tracking.c (vt_add_function_parameter): Punt for non-onepart
6423         PARALLEL incoming that failed vt_get_decl_and_offset check.
6424
6425         PR middle-end/84237
6426         * output.h (bss_initializer_p): Add NAMED argument, defaulted to false.
6427         * varasm.c (bss_initializer_p): Add NAMED argument, if true, ignore
6428         TREE_READONLY bit.
6429         (get_variable_section): For decls in named .bss* sections pass true as
6430         second argument to bss_initializer_p.
6431
6432 2018-02-09  Marek Polacek  <polacek@redhat.com>
6433             Jakub Jelinek  <jakub@redhat.com>
6434
6435         PR c++/83659
6436         * fold-const.c (fold_indirect_ref_1): Use VECTOR_TYPE_P macro.
6437         Formatting fixes.  Verify first that tree_fits_poly_int64_p (op01).
6438         Sync some changes from cxx_fold_indirect_ref.
6439
6440 2018-02-09  Alexandre Oliva  <aoliva@redhat.com>
6441
6442         * cfgexpand.c (expand_gimple_basic_block): Handle inline entry
6443         markers.
6444         * dwarf2out.c (dwarf2_debug_hooks): Enable inline_entry hook.
6445         (BLOCK_INLINE_ENTRY_LABEL): New.
6446         (dwarf2out_var_location): Disregard inline entry markers.
6447         (inline_entry_data): New struct.
6448         (inline_entry_data_hasher): New hashtable type.
6449         (inline_entry_data_hasher::hash): New.
6450         (inline_entry_data_hasher::equal): New.
6451         (inline_entry_data_table): New variable.
6452         (add_high_low_attributes): Add DW_AT_entry_pc and
6453         DW_AT_GNU_entry_view attributes if a pending entry is found
6454         in inline_entry_data_table.  Add old entry_pc attribute only
6455         if debug nonbinding markers are disabled.
6456         (gen_inlined_subroutine_die): Set BLOCK_DIE if nonbinding
6457         markers are enabled.
6458         (block_within_block_p, dwarf2out_inline_entry): New.
6459         (dwarf2out_finish): Check that no entries remained in
6460         inline_entry_data_table.
6461         * final.c (reemit_insn_block_notes): Handle inline entry notes.
6462         (final_scan_insn, notice_source_line): Likewise.
6463         (rest_of_clean_state): Skip inline entry markers.
6464         * gimple-pretty-print.c (dump_gimple_debug): Handle inline entry
6465         markers.
6466         * gimple.c (gimple_build_debug_inline_entry): New.
6467         * gimple.h (enum gimple_debug_subcode): Add
6468         GIMPLE_DEBUG_INLINE_ENTRY.
6469         (gimple_build_debug_inline_entry): Declare.
6470         (gimple_debug_inline_entry_p): New.
6471         (gimple_debug_nonbind_marker_p): Adjust.
6472         * insn-notes.def (INLINE_ENTRY): New.
6473         * print-rtl.c (rtx_writer::print_rtx_operand_code_0): Handle
6474         inline entry marker notes.
6475         (print_insn): Likewise.
6476         * rtl.h (NOTE_MARKER_P): Add INLINE_ENTRY support.
6477         (INSN_DEBUG_MARKER_KIND): Likewise.
6478         (GEN_RTX_DEBUG_MARKER_INLINE_ENTRY_PAT): New.
6479         * tree-inline.c (expand_call_inline): Build and insert
6480         debug_inline_entry stmt.
6481         * tree-ssa-live.c (remove_unused_scope_block_p): Preserve
6482         inline entry blocks early, if nonbind markers are enabled.
6483         (dump_scope_block): Dump fragment info.
6484         * var-tracking.c (reemit_marker_as_note): Handle inline entry note.
6485         * doc/gimple.texi (gimple_debug_inline_entry_p): New.
6486         (gimple_build_debug_inline_entry): New.
6487         * doc/invoke.texi (gstatement-frontiers, gno-statement-frontiers):
6488         Enable/disable inline entry points too.
6489         * doc/rtl.texi (NOTE_INSN_INLINE_ENTRY): New.
6490         (DEBUG_INSN): Describe inline entry markers.
6491
6492         * common.opt (gvariable-location-views): New.
6493         (gvariable-location-views=incompat5): New.
6494         * config.in: Rebuilt.
6495         * configure: Rebuilt.
6496         * configure.ac: Test assembler for view support.
6497         * dwarf2asm.c (dw2_asm_output_symname_uleb128): New.
6498         * dwarf2asm.h (dw2_asm_output_symname_uleb128): Declare.
6499         * dwarf2out.c (var_loc_view): New typedef.
6500         (struct dw_loc_list_struct): Add vl_symbol, vbegin, vend.
6501         (dwarf2out_locviews_in_attribute): New.
6502         (dwarf2out_locviews_in_loclist): New.
6503         (dw_val_equal_p): Compare val_view_list of dw_val_class_view_lists.
6504         (enum dw_line_info_opcode): Add LI_adv_address.
6505         (struct dw_line_info_table): Add view.
6506         (RESET_NEXT_VIEW, RESETTING_VIEW_P): New macros.
6507         (DWARF2_ASM_VIEW_DEBUG_INFO): Define default.
6508         (zero_view_p): New variable.
6509         (ZERO_VIEW_P): New macro.
6510         (output_asm_line_debug_info): New.
6511         (struct var_loc_node): Add view.
6512         (add_AT_view_list, AT_loc_list): New.
6513         (add_var_loc_to_decl): Add view param.  Test it against last.
6514         (new_loc_list): Add view params.  Record them.
6515         (AT_loc_list_ptr): Handle loc and view lists.
6516         (view_list_to_loc_list_val_node): New.
6517         (print_dw_val): Handle dw_val_class_view_list.
6518         (size_of_die): Likewise.
6519         (value_format): Likewise.
6520         (loc_list_has_views): New.
6521         (gen_llsym): Set vl_symbol too.
6522         (maybe_gen_llsym, skip_loc_list_entry): New.
6523         (dwarf2out_maybe_output_loclist_view_pair): New.
6524         (output_loc_list): Output view list or entries too.
6525         (output_view_list_offset): New.
6526         (output_die): Handle dw_val_class_view_list.
6527         (output_dwarf_version): New.
6528         (output_compilation_unit_header): Use it.
6529         (output_skeleton_debug_sections): Likewise.
6530         (output_rnglists, output_line_info): Likewise.
6531         (output_pubnames, output_aranges): Update version comments.
6532         (output_one_line_info_table): Output view numbers in asm comments.
6533         (dw_loc_list): Determine current endview, pass it to new_loc_list.
6534         Call maybe_gen_llsym.
6535         (loc_list_from_tree_1): Adjust.
6536         (add_AT_location_description): Create view list attribute if
6537         needed, check it's absent otherwise.
6538         (convert_cfa_to_fb_loc_list): Adjust.
6539         (maybe_emit_file): Call output_asm_line_debug_info for test.
6540         (dwarf2out_var_location): Reset views as needed.  Precompute
6541         add_var_loc_to_decl args.  Call get_attr_min_length only if we have the
6542         attribute.  Set view.
6543         (new_line_info_table): Reset next view.
6544         (set_cur_line_info_table): Call output_asm_line_debug_info for test.
6545         (dwarf2out_source_line): Likewise.  Output view resets and labels to
6546         the assembler, or select appropriate line info opcodes.
6547         (prune_unused_types_walk_attribs): Handle dw_val_class_view_list.
6548         (optimize_string_length): Catch it.  Adjust.
6549         (resolve_addr): Copy vl_symbol along with ll_symbol.  Handle
6550         dw_val_class_view_list, and remove it if no longer needed.
6551         (hash_loc_list): Hash view numbers.
6552         (loc_list_hasher::equal): Compare them.
6553         (optimize_location_lists): Check whether a view list symbol is
6554         needed, and whether the locview attribute is present, and
6555         whether they match.  Remove the locview attribute if no longer
6556         needed.
6557         (index_location_lists): Call skip_loc_list_entry for test.
6558         (dwarf2out_finish): Call output_asm_line_debug_info for test.
6559         Use output_dwarf_version.
6560         * dwarf2out.h (enum dw_val_class): Add dw_val_class_view_list.
6561         (struct dw_val_node): Add val_view_list.
6562         * final.c (SEEN_NEXT_VIEW): New.
6563         (set_next_view_needed): New.
6564         (clear_next_view_needed): New.
6565         (maybe_output_next_view): New.
6566         (final_start_function): Rename to...
6567         (final_start_function_1): ... this.  Take pointer to FIRST,
6568         add SEEN parameter.  Emit param bindings in the initial view.
6569         (final_start_function): Reintroduce SEEN-less interface.
6570         (final): Rename to...
6571         (final_1): ... this.  Take SEEN parameter.  Output final pending
6572         next view at the end.
6573         (final): Reintroduce seen-less interface.
6574         (final_scan_insn): Output pending next view before switching
6575         sections or ending a block.  Mark the next view as needed when
6576         outputting variable locations.  Notify debug backend of section
6577         changes, and of location view changes.
6578         (rest_of_handle_final): Adjust.
6579         * toplev.c (process_options): Autodetect value for debug variable
6580         location views option.  Warn on incompat5 without -gdwarf-5.
6581         * doc/invoke.texi (gvariable-location-views): New.
6582         (gvariable-location-views=incompat5): New.
6583         (gno-variable-location-views): New.
6584
6585 2018-02-08  David Malcolm  <dmalcolm@redhat.com>
6586
6587         PR tree-optimization/84136
6588         * tree-cfg.c (find_taken_edge_computed_goto): Remove assertion
6589         that the result of find_edge is non-NULL.
6590
6591 2018-02-08  Sergey Shalnov  <sergey.shalnov@intel.com>
6592
6593         PR target/83008
6594         * config/i386/x86-tune-costs.h (skylake_cost): Fix cost of
6595         storing integer register in SImode.  Fix cost of 256 and 512
6596         byte aligned SSE register store.
6597
6598 2018-02-08  Sergey Shalnov  <sergey.shalnov@intel.com>
6599
6600         * config/i386/i386.c (ix86_multiplication_cost): Fix
6601         multiplication cost for TARGET_AVX512DQ.
6602
6603 2018-02-08  Marek Polacek  <polacek@redhat.com>
6604
6605         PR tree-optimization/84238
6606         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Verify the result of
6607         get_range_strlen.
6608
6609 2018-02-08  Richard Sandiford  <richard.sandiford@linaro.org>
6610
6611         PR tree-optimization/84265
6612         * tree-vect-stmts.c (vectorizable_store): Don't treat
6613         VMAT_CONTIGUOUS accesses as grouped.
6614         (vectorizable_load): Likewise.
6615
6616 2018-02-08  Richard Sandiford  <richard.sandiford@linaro.org>
6617
6618         PR tree-optimization/81635
6619         * wide-int.h (wi::round_down_for_mask, wi::round_up_for_mask): Declare.
6620         * wide-int.cc (wi::round_down_for_mask, wi::round_up_for_mask)
6621         (test_round_for_mask): New functions.
6622         (wide_int_cc_tests): Call test_round_for_mask.
6623         * tree-vrp.h (intersect_range_with_nonzero_bits): Declare.
6624         * tree-vrp.c (intersect_range_with_nonzero_bits): New function.
6625         * tree-data-ref.c (split_constant_offset_1): Use it to refine the
6626         range returned by get_range_info.
6627
6628 2018-02-08  Jan Hubicka  <hubicka@ucw.cz>
6629
6630         PR ipa/81360
6631         * cgraph.h (symtab_node::output_to_lto_symbol_table_p): Declare
6632         * symtab.c: Include builtins.h
6633         (symtab_node::output_to_lto_symbol_table_p): Move here
6634         from lto-streamer-out.c:output_symbol_p.
6635         * lto-streamer-out.c (write_symbol): Turn early exit to assert.
6636         (output_symbol_p): Move all logic to symtab.c
6637         (produce_symtab): Update.
6638
6639 2018-02-08  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
6640
6641         * config/s390/s390-opts.h (enum indirect_branch): Define.
6642         * config/s390/s390-protos.h (s390_return_addr_from_memory)
6643         (s390_indirect_branch_via_thunk)
6644         (s390_indirect_branch_via_inline_thunk): Add function prototypes.
6645         (enum s390_indirect_branch_type): Define.
6646         * config/s390/s390.c (struct s390_frame_layout, struct
6647         machine_function): Remove.
6648         (indirect_branch_prez10thunk_mask, indirect_branch_z10thunk_mask)
6649         (indirect_branch_table_label_no, indirect_branch_table_name):
6650         Define variables.
6651         (INDIRECT_BRANCH_NUM_OPTIONS): Define macro.
6652         (enum s390_indirect_branch_option): Define.
6653         (s390_return_addr_from_memory): New function.
6654         (s390_handle_string_attribute): New function.
6655         (s390_attribute_table): Add new attribute handler.
6656         (s390_execute_label): Handle UNSPEC_EXECUTE_JUMP patterns.
6657         (s390_indirect_branch_via_thunk): New function.
6658         (s390_indirect_branch_via_inline_thunk): New function.
6659         (s390_function_ok_for_sibcall): When jumping via thunk disallow
6660         sibling call optimization for non z10 compiles.
6661         (s390_emit_call): Force indirect branch target to be a single
6662         register.  Add r1 clobber for non-z10 compiles.
6663         (s390_emit_epilogue): Emit return jump via return_use expander.
6664         (s390_reorg): Handle JUMP_INSNs as execute targets.
6665         (s390_option_override_internal): Perform validity checks for the
6666         new command line options.
6667         (s390_indirect_branch_attrvalue): New function.
6668         (s390_indirect_branch_settings): New function.
6669         (s390_set_current_function): Invoke s390_indirect_branch_settings.
6670         (s390_output_indirect_thunk_function):  New function.
6671         (s390_code_end): Implement target hook.
6672         (s390_case_values_threshold): Implement target hook.
6673         (TARGET_ASM_CODE_END, TARGET_CASE_VALUES_THRESHOLD): Define target
6674         macros.
6675         * config/s390/s390.h (struct s390_frame_layout)
6676         (struct machine_function): Move here from s390.c.
6677         (TARGET_INDIRECT_BRANCH_NOBP_RET)
6678         (TARGET_INDIRECT_BRANCH_NOBP_JUMP)
6679         (TARGET_INDIRECT_BRANCH_NOBP_JUMP_THUNK)
6680         (TARGET_INDIRECT_BRANCH_NOBP_JUMP_INLINE_THUNK)
6681         (TARGET_INDIRECT_BRANCH_NOBP_CALL)
6682         (TARGET_DEFAULT_INDIRECT_BRANCH_TABLE)
6683         (TARGET_INDIRECT_BRANCH_THUNK_NAME_EXRL)
6684         (TARGET_INDIRECT_BRANCH_THUNK_NAME_EX)
6685         (TARGET_INDIRECT_BRANCH_TABLE): Define macros.
6686         * config/s390/s390.md (UNSPEC_EXECUTE_JUMP)
6687         (INDIRECT_BRANCH_THUNK_REGNUM): Define constants.
6688         (mnemonic attribute): Add values which aren't recognized
6689         automatically.
6690         ("*cjump_long", "*icjump_long", "*basr", "*basr_r"): Disable
6691         pattern for branch conversion.  Fix mnemonic attribute.
6692         ("*c<code>", "*sibcall_br", "*sibcall_value_br", "*return"): Emit
6693         indirect branch via thunk if requested.
6694         ("indirect_jump", "<code>"): Expand patterns for branch conversion.
6695         ("*indirect_jump"): Disable for branch conversion using out of
6696         line thunks.
6697         ("indirect_jump_via_thunk<mode>_z10")
6698         ("indirect_jump_via_thunk<mode>")
6699         ("indirect_jump_via_inlinethunk<mode>_z10")
6700         ("indirect_jump_via_inlinethunk<mode>", "*casesi_jump")
6701         ("casesi_jump_via_thunk<mode>_z10", "casesi_jump_via_thunk<mode>")
6702         ("casesi_jump_via_inlinethunk<mode>_z10")
6703         ("casesi_jump_via_inlinethunk<mode>", "*basr_via_thunk<mode>_z10")
6704         ("*basr_via_thunk<mode>", "*basr_r_via_thunk_z10")
6705         ("*basr_r_via_thunk", "return<mode>_prez10"): New pattern.
6706         ("*indirect2_jump"): Disable for branch conversion.
6707         ("casesi_jump"): Turn into expander and expand patterns for branch
6708         conversion.
6709         ("return_use"): New expander.
6710         ("*return"): Emit return via thunk and rename it to ...
6711         ("*return<mode>"): ... this one.
6712         * config/s390/s390.opt: Add new options and and enum for the
6713         option values.
6714
6715 2018-02-08  Richard Sandiford  <richard.sandiford@linaro.org>
6716
6717         * lra-constraints.c (match_reload): Unconditionally use
6718         gen_lowpart_SUBREG, rather than selecting between that
6719         and equivalent gen_rtx_SUBREG code.
6720
6721 2018-02-08  Richard Biener  <rguenther@suse.de>
6722
6723         PR tree-optimization/84233
6724         * tree-ssa-phiprop.c (propagate_with_phi): Use separate
6725         changed flag instead of boguously re-using phi_inserted.
6726
6727 2018-02-08  Martin Jambor  <mjambor@suse.cz>
6728
6729         * hsa-gen.c (get_symbol_for_decl): Set program allocation for
6730         static local variables.
6731
6732 2018-02-08  Richard Biener  <rguenther@suse.de>
6733
6734         PR tree-optimization/84278
6735         * tree-vect-stmts.c (vectorizable_store): When looking for
6736         smaller vector types to perform grouped strided loads/stores
6737         make sure the mode is supported by the target.
6738         (vectorizable_load): Likewise.
6739
6740 2018-02-08  Wilco Dijkstra  <wdijkstr@arm.com>
6741
6742         * config/aarch64/aarch64.c (aarch64_components_for_bb):
6743         Increase LDP/STP opportunities by adding adjacent callee-saves.
6744
6745 2018-02-08  Wilco Dijkstra  <wdijkstr@arm.com>
6746
6747         PR rtl-optimization/84068
6748         PR rtl-optimization/83459
6749         * haifa-sched.c (rank_for_schedule): Fix SCHED_PRESSURE_MODEL sorting.
6750
6751 2018-02-08  Aldy Hernandez  <aldyh@redhat.com>
6752
6753         PR tree-optimization/84224
6754         * gimple-ssa-warn-alloca.c (pass_walloca::execute): Remove assert.
6755         * calls.c (gimple_alloca_call_p): Only return TRUE when we have
6756         non-zero arguments.
6757
6758 2018-02-07  Iain Sandoe  <iain@codesourcery.com>
6759
6760         PR target/84113
6761         * config/rs6000/altivec.md (*restore_world): Remove LR use.
6762         * config/rs6000/predicates.md (restore_world_operation): Adjust op
6763         count, remove one USE.
6764
6765 2018-02-07  Michael Meissner  <meissner@linux.vnet.ibm.com>
6766
6767         * doc/install.texi (Configuration): Document the
6768         --with-long-double-format={ibm,ieee} PowerPC configuration
6769         options.
6770
6771         PR target/84154
6772         * config/rs6000/rs6000.md (fix_trunc<SFDF:mode><QHI:mode>2):
6773         Convert from define_expand to be define_insn_and_split.  Rework
6774         float/double/_Float128 conversions to QI/HI/SImode to work with
6775         both ISA 2.07 (power8) or ISA 3.0 (power9).  Fix regression where
6776         conversions to QI/HImode types did a store and then a load to
6777         truncate the value.  For conversions to VSX registers, don't split
6778         the insn, instead emit the code directly.  Use the code iterator
6779         any_fix to combine signed and unsigned conversions.
6780         (fix<uns>_trunc<SFDF:mode>si2_p8): Likewise.
6781         (fixuns_trunc<SFDF:mode><QHI:mode>2): Likewise.
6782         (fix_trunc<IEEE128:mode><QHI:mode>2): Likewise.
6783         (fix<uns>_trunc<SFDF:mode><QHI:mode>2): Likewise.
6784         (fix_<mode>di2_hw): Likewise.
6785         (fixuns_<mode>di2_hw): Likewise.
6786         (fix_<mode>si2_hw): Likewise.
6787         (fixuns_<mode>si2_hw): Likewise.
6788         (fix<uns>_<IEEE128:mode><SDI:mode>2_hw): Likewise.
6789         (fix<uns>_trunc<IEEE128:mode><QHI:mode>2): Likewise.
6790         (fctiw<u>z_<mode>_smallint): Rename fctiw<u>z_<mode>_smallint to
6791         fix<uns>_trunc<SFDF:mode>si2_p8.
6792         (fix_trunc<SFDF:mode><QHI:mode>2_internal): Delete, no longer
6793         used.
6794         (fixuns_trunc<SFDF:mode><QHI:mode>2_internal): Likewise.
6795         (fix<uns>_<mode>_mem): Likewise.
6796         (fctiw<u>z_<mode>_mem): Likewise.
6797         (fix<uns>_<mode>_mem): Likewise.
6798         (fix<uns>_trunc<SFDF:mode><QHSI:mode>2_mem): On ISA 3.0, prevent
6799         the register allocator from doing a direct move to the GPRs to do
6800         a store, and instead use the ISA 3.0 store byte/half-word from
6801         vector register instruction.  For IEEE 128-bit floating point,
6802         also optimize stores of 32-bit ints.
6803         (fix<uns>_trunc<IEEE128:mode><QHSI:mode>2_mem): Likewise.
6804
6805 2018-02-07  Alan Hayward  <alan.hayward@arm.com>
6806
6807         * genextract.c (push_pathstr_operand): New function to support
6808         [a-zA-Z].
6809         (walk_rtx): Call push_pathstr_operand.
6810         (print_path): Support [a-zA-Z].
6811
6812 2018-02-07  Richard Biener  <rguenther@suse.de>
6813
6814         PR tree-optimization/84037
6815         * tree-vectorizer.h (struct _loop_vec_info): Add ivexpr_map member.
6816         (cse_and_gimplify_to_preheader): Declare.
6817         (vect_get_place_in_interleaving_chain): Likewise.
6818         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
6819         ivexpr_map.
6820         (_loop_vec_info::~_loop_vec_info): Delete it.
6821         (cse_and_gimplify_to_preheader): New function.
6822         * tree-vect-slp.c (vect_get_place_in_interleaving_chain): Export.
6823         * tree-vect-stmts.c (vectorizable_store): CSE base and steps.
6824         (vectorizable_load): Likewise.  For grouped stores always base
6825         the IV on the first element.
6826         * tree-vect-loop-manip.c (vect_loop_versioning): Unshare versioning
6827         condition before gimplifying.
6828
6829 2018-02-07  Jakub Jelinek  <jakub@redhat.com>
6830
6831         * tree-eh.c (operation_could_trap_helper_p): Ignore honor_trapv for
6832         *DIV_EXPR and *MOD_EXPR.
6833
6834 2018-02-07  H.J. Lu  <hongjiu.lu@intel.com>
6835
6836         PR target/84248
6837         * config/i386/i386.c (ix86_option_override_internal): Mask out
6838         the CF_SET bit when checking -fcf-protection.
6839
6840 2018-02-07  Tom de Vries  <tom@codesourcery.com>
6841
6842         PR libgomp/84217
6843         * omp-expand.c (expand_oacc_collapse_init): Ensure diff_type is large
6844         enough.
6845
6846 2018-02-07  Richard Biener  <rguenther@suse.de>
6847
6848         PR tree-optimization/84204
6849         * tree-chrec.c (chrec_fold_plus_1): Remove size limiting in
6850         this place.
6851
6852         PR tree-optimization/84205
6853         * graphite-isl-ast-to-gimple.c (binary_op_to_tree): Also
6854         special-case isl_ast_op_zdiv_r.
6855
6856         PR tree-optimization/84223
6857         * graphite-scop-detection.c (gather_bbs::before_dom_children):
6858         Only add conditions from within the region.
6859         (gather_bbs::after_dom_children): Adjust.
6860
6861 2018-02-07  Georg-Johann Lay  <avr@gjlay.de>
6862
6863         PR target/84209
6864         * config/avr/avr.h (GENERAL_REGNO_P, GENERAL_REG_P): New macros.
6865         * config/avr/avr.md: Only post-reload split REG-REG moves if
6866         either register is GENERAL_REG_P.
6867
6868 2018-02-07  Jakub Jelinek  <jakub@redhat.com>
6869
6870         PR tree-optimization/84235
6871         * tree-ssa-scopedtables.c
6872         (avail_exprs_stack::simplify_binary_operation): Fir MINUS_EXPR, punt
6873         if the subtraction is performed in floating point type where NaNs are
6874         honored.  For *DIV_EXPR, punt for ALL_FRACT_MODE_Ps where we can't
6875         build 1.  Formatting fix.
6876
6877 2018-02-06  Jakub Jelinek  <jakub@redhat.com>
6878
6879         PR target/84146
6880         * config/i386/i386.c (rest_of_insert_endbranch): Only skip
6881         NOTE_INSN_CALL_ARG_LOCATION after a call, not anything else,
6882         and skip it regardless of bb boundaries.  Use CALL_P macro,
6883         don't test INSN_P (insn) together with CALL_P or JUMP_P check
6884         unnecessarily, formatting fix.
6885
6886 2018-02-06  Michael Collison  <michael.collison@arm.com>
6887
6888         * config/arm/thumb2.md:
6889         (*thumb2_mov_negscc): Split only if TARGET_THUMB2 && !arm_restrict_it.
6890         (*thumb_mov_notscc): Ditto.
6891
6892 2018-02-06  Michael Meissner  <meissner@linux.vnet.ibm.com>
6893
6894         PR target/84154
6895         * config/rs6000/rs6000.md (su code attribute): Use "u" for
6896         unsigned_fix, not "s".
6897
6898 2018-02-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
6899
6900         * configure.ac (gcc_fn_eh_frame_ro): New function.
6901         (gcc_cv_as_cfi_directive): Check both 32 and 64-bit assembler for
6902         correct .eh_frame permissions.
6903         * configure: Regenerate.
6904
6905 2018-02-06  Andrew Jenner  <andrew@codeourcery.com>
6906
6907         * doc/invoke.texi: Add section for the PowerPC SPE backend. Remove
6908         irrelevant options.
6909
6910 2018-02-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
6911
6912         * config/rs6000/rs6000.c (rs6000_option_override_internal):
6913         Display warning message for -mno-speculate-indirect-jumps.
6914
6915 2018-02-06  Andrew Jenner  <andrew@codesourcery.com>
6916
6917         * config/powerpcspe/powerpcspe.opt: (msimple-fpu, mfpu) Add
6918         Undocumented.
6919         * config/powerpcspe/sysv4.opt (mbit-align): Likewise.
6920
6921 2018-02-06  Aldy Hernandez  <aldyh@redhat.com>
6922
6923         PR tree-optimization/84225
6924         * tree-eh.c (find_trapping_overflow): Only call
6925         operation_no_trapping_overflow when ANY_INTEGRAL_TYPE_P.
6926
6927 2018-02-06  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
6928
6929         PR target/84145
6930         * config/i386/i386.c: Reimplement the check of possible options
6931         -mibt/-mshstk conbination. Change error messages.
6932         * doc/invoke.texi: Fix a typo: remove extra '='.
6933
6934 2018-02-06  Marek Polacek  <polacek@redhat.com>
6935
6936         PR tree-optimization/84228
6937         * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Skip debug statements.
6938
6939 2018-02-06  Tamar Christina  <tamar.christina@arm.com>
6940
6941         PR target/82641
6942         * config/arm/arm.c (arm_print_asm_arch_directives): Record already
6943         emitted arch directives.
6944         * config/arm/arm-c.c (arm_cpu_builtins): Undefine __ARM_ARCH and
6945         __ARM_FEATURE_COPROC before changing architectures.
6946
6947 2018-02-06  Richard Biener  <rguenther@suse.de>
6948
6949         * config/i386/i386.c (print_reg): Fix typo.
6950         (ix86_loop_unroll_adjust): Do not unroll beyond the original nunroll.
6951
6952 2018-02-06  Eric Botcazou  <ebotcazou@adacore.com>
6953
6954         * configure: Regenerate.
6955
6956 2018-02-05  Martin Sebor  <msebor@redhat.com>
6957
6958         PR tree-optimization/83369
6959         * tree-ssa-ccp.c (pass_post_ipa_warn::execute): Use %G to print
6960         inlining context.
6961
6962 2018-02-05  Martin Liska  <mliska@suse.cz>
6963
6964         * doc/invoke.texi: Cherry-pick upstream r323995.
6965
6966 2018-02-05  Richard Sandiford  <richard.sandiford@linaro.org>
6967
6968         * ira.c (ira_init_register_move_cost): Adjust comment.
6969
6970 2018-02-05  Martin Liska  <mliska@suse.cz>
6971
6972         PR gcov-profile/84137
6973         * doc/gcov.texi: Fix typo in documentation.
6974
6975 2018-02-05  Martin Liska  <mliska@suse.cz>
6976
6977         PR gcov-profile/83879
6978         * doc/gcov.texi: Document necessity of --dynamic-list-data when
6979         using dlopen functionality.
6980
6981 2018-02-05  Olga Makhotina  <olga.makhotina@intel.com>
6982
6983         * config/i386/avx512dqintrin.h (_mm_mask_range_sd, _mm_maskz_range_sd,
6984         _mm_mask_range_round_sd, _mm_maskz_range_round_sd, _mm_mask_range_ss,
6985         _mm_maskz_range_ss, _mm_mask_range_round_ss,
6986         _mm_maskz_range_round_ss): New intrinsics.
6987         (__builtin_ia32_rangesd128_round)
6988         (__builtin_ia32_rangess128_round): Remove.
6989         (__builtin_ia32_rangesd128_mask_round,
6990         __builtin_ia32_rangess128_mask_round): New builtins.
6991         * config/i386/i386-builtin.def (__builtin_ia32_rangesd128_round,
6992         __builtin_ia32_rangess128_round): Remove.
6993         (__builtin_ia32_rangesd128_mask_round,
6994         __builtin_ia32_rangess128_mask_round): New builtins.
6995         * config/i386/sse.md (ranges<mode><round_saeonly_name>): Renamed to ...
6996         (ranges<mode><mask_scalar_name><round_saeonly_scalar_name>): ... this.
6997         ((match_operand:VF_128 2 "<round_saeonly_nimm_predicate>"
6998         "<round_saeonly_constraint>")): Changed to ...
6999         ((match_operand:VF_128 2 "<round_saeonly_scalar_nimm_predicate>"
7000         "<round_saeonly_scalar_constraint>")): ... this.
7001         ("vrange<ssescalarmodesuffix>\t{%3, <round_saeonly_op4>%2, %1, %0|
7002         %0, %1, %2<round_saeonly_op4>, %3}"): Changed to ...
7003         ("vrange<ssescalarmodesuffix>\t{%3, <round_saeonly_scalar_mask_op4>%2,
7004         %1, %0<mask_scalar_operand4>|%0<mask_scalar_operand4>, %1,
7005         %2<round_saeonly_scalar_mask_op4>, %3}"): ... this.
7006
7007 2018-02-02  Andrew Jenner  <andrew@codesourcery.com>
7008
7009         * config/powerpcspe/powerpcspe.opt: Add Undocumented to irrelevant
7010         options.
7011         * config/powerpcspe/powerpcspe-tables.opt (rs6000_cpu_opt_value):
7012         Remove all values except native, 8540 and 8548.
7013
7014 2018-02-02  H.J. Lu  <hongjiu.lu@intel.com>
7015
7016         * config/i386/i386.c (ix86_output_function_return): Pass
7017         INVALID_REGNUM, instead of -1, as invalid register number to
7018         indirect_thunk_name and output_indirect_thunk.
7019
7020 2018-02-02  Julia Koval  <julia.koval@intel.com>
7021
7022         * config.gcc: Add -march=icelake.
7023         * config/i386/driver-i386.c (host_detect_local_cpu): Detect icelake.
7024         * config/i386/i386-c.c (ix86_target_macros_internal): Handle icelake.
7025         * config/i386/i386.c (processor_costs): Add m_ICELAKE.
7026         (PTA_ICELAKE, PTA_AVX512VNNI, PTA_GFNI, PTA_VAES, PTA_AVX512VBMI2,
7027         PTA_VPCLMULQDQ, PTA_RDPID, PTA_AVX512BITALG): New.
7028         (processor_target_table): Add icelake.
7029         (ix86_option_override_internal): Handle new PTAs.
7030         (get_builtin_code_for_version): Handle icelake.
7031         (M_INTEL_COREI7_ICELAKE): New.
7032         (fold_builtin_cpu): Handle icelake.
7033         * config/i386/i386.h (TARGET_ICELAKE, PROCESSOR_ICELAKE): New.
7034         * doc/invoke.texi: Add -march=icelake.
7035
7036 2018-02-02  Julia Koval  <julia.koval@intel.com>
7037
7038         * config/i386/i386.c (ix86_option_override_internal): Change flags type
7039         to wide_int_bitmask.
7040         * wide-int-bitmask.h: New.
7041
7042 2018-02-02  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
7043
7044         PR target/84066
7045         * config/i386/i386.md: Replace Pmode with word_mode in
7046         builtin_setjmp_setup and builtin_longjmp to support x32.
7047
7048 2018-02-01  Peter Bergner  <bergner@vnet.ibm.com>
7049
7050         PR target/56010
7051         PR target/83743
7052         * config/rs6000/driver-rs6000.c: #include "diagnostic.h".
7053         #include "opts.h".
7054         (rs6000_supported_cpu_names): New static variable.
7055         (linux_cpu_translation_table): Likewise.
7056         (elf_platform) <cpu>: Define new static variable and use it.
7057         Translate kernel AT_PLATFORM name to canonical name if needed.
7058         Error if platform name is unknown.
7059
7060 2018-02-01  Aldy Hernandez  <aldyh@redhat.com>
7061
7062         PR target/84089
7063         * config/pa/predicates.md (base14_operand): Handle E_VOIDmode.
7064
7065 2018-02-01  Jeff Law  <law@redhat.com>
7066
7067         PR target/84128
7068         * config/i386/i386.c (release_scratch_register_on_entry): Add new
7069         OFFSET and RELEASE_VIA_POP arguments.  Use SP+OFFSET to restore
7070         the scratch if RELEASE_VIA_POP is false.
7071         (ix86_adjust_stack_and_probe_stack_clash): Un-constify SIZE.
7072         If we have to save a temporary register, decrement SIZE appropriately.
7073         Pass new arguments to release_scratch_register_on_entry.
7074         (ix86_adjust_stack_and_probe): Likewise.
7075         (ix86_emit_probe_stack_range): Pass new arguments to
7076         release_scratch_register_on_entry.
7077
7078 2018-02-01  Uros Bizjak  <ubizjak@gmail.com>
7079
7080         PR rtl-optimization/84157
7081         * combine.c (change_zero_ext): Use REG_P predicate in
7082         front of HARD_REGISTER_P predicate.
7083
7084 2018-02-01  Georg-Johann Lay  <avr@gjlay.de>
7085
7086         * config/avr/avr.c (avr_option_override): Move disabling of
7087         -fdelete-null-pointer-checks to...
7088         * common/config/avr/avr-common.c (avr_option_optimization_table):
7089         ...here.
7090
7091 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
7092
7093         PR tree-optimization/81635
7094         * tree-data-ref.c (split_constant_offset_1): For types that
7095         wrap on overflow, try to use range info to prove that wrapping
7096         cannot occur.
7097
7098 2018-02-01  Renlin Li  <renlin.li@arm.com>
7099
7100         PR target/83370
7101         * config/aarch64/aarch64.c (aarch64_class_max_nregs): Handle
7102         TAILCALL_ADDR_REGS.
7103         (aarch64_register_move_cost): Likewise.
7104         * config/aarch64/aarch64.h (reg_class): Rename CALLER_SAVE_REGS to
7105         TAILCALL_ADDR_REGS.
7106         (REG_CLASS_NAMES): Likewise.
7107         (REG_CLASS_CONTENTS): Rename CALLER_SAVE_REGS to
7108         TAILCALL_ADDR_REGS. Remove IP registers.
7109         * config/aarch64/aarch64.md (Ucs): Update register constraint.
7110
7111 2018-02-01  Richard Biener  <rguenther@suse.de>
7112
7113         * domwalk.h (dom_walker::dom_walker): Add additional constructor
7114         for specifying RPO order and allow NULL for that.
7115         * domwalk.c (dom_walker::dom_walker): Likewise.
7116         (dom_walker::walk): Handle NULL RPO order.
7117         * tree-into-ssa.c (rewrite_dom_walker): Do not walk dom children
7118         in RPO order.
7119         (rewrite_update_dom_walker): Likewise.
7120         (mark_def_dom_walker): Likewise.
7121
7122 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
7123
7124         * config/aarch64/aarch64-protos.h (aarch64_split_sve_subreg_move)
7125         (aarch64_maybe_expand_sve_subreg_move): Declare.
7126         * config/aarch64/aarch64.md (UNSPEC_REV_SUBREG): New unspec.
7127         * config/aarch64/predicates.md (aarch64_any_register_operand): New
7128         predicate.
7129         * config/aarch64/aarch64-sve.md (mov<mode>): Optimize subreg moves
7130         that are semantically a reverse operation.
7131         (*aarch64_sve_mov<mode>_subreg_be): New pattern.
7132         * config/aarch64/aarch64.c (aarch64_maybe_expand_sve_subreg_move):
7133         (aarch64_replace_reg_mode, aarch64_split_sve_subreg_move): New
7134         functions.
7135         (aarch64_can_change_mode_class): For big-endian, forbid changes
7136         between two SVE modes if they have different element sizes.
7137
7138 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
7139
7140         * config/aarch64/aarch64.c (aarch64_expand_sve_const_vector): Prefer
7141         the TImode handling for big-endian targets.
7142
7143 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
7144
7145         * config/aarch64/aarch64-sve.md (sve_ld1rq): Replace with...
7146         (*sve_ld1rq<Vesize>): ... this new pattern.  Handle all element sizes,
7147         not just bytes.
7148         * config/aarch64/aarch64.c (aarch64_expand_sve_widened_duplicate):
7149         Remove BSWAP handing for big-endian targets and use the form of
7150         LD1RQ appropariate for the mode.
7151
7152 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
7153
7154         * config/aarch64/aarch64.c (aarch64_simd_valid_immediate): Handle
7155         all CONST_VECTOR_DUPLICATE_P vectors, not just those with a single
7156         duplicated element.
7157
7158 2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
7159
7160         PR tearget/83845
7161         * config/aarch64/aarch64.c (aarch64_secondary_reload): Tighten
7162         check for operands that need to go through aarch64_sve_reload_be.
7163
7164 2018-02-01  Jakub Jelinek  <jakub@redhat.com>
7165
7166         PR tree-optimization/81661
7167         PR tree-optimization/84117
7168         * tree-eh.h (rewrite_to_non_trapping_overflow): Declare.
7169         * tree-eh.c: Include gimplify.h.
7170         (find_trapping_overflow, replace_trapping_overflow,
7171         rewrite_to_non_trapping_overflow): New functions.
7172         * tree-vect-loop.c: Include tree-eh.h.
7173         (vect_get_loop_niters): Use rewrite_to_non_trapping_overflow.
7174         * tree-data-ref.c: Include tree-eh.h.
7175         (get_segment_min_max): Use rewrite_to_non_trapping_overflow.
7176
7177 2018-01-31  Uros Bizjak  <ubizjak@gmail.com>
7178
7179         PR rtl-optimization/84123
7180         * combine.c (change_zero_ext): Check if hard register satisfies
7181         can_change_dest_mode before calling gen_lowpart_SUBREG.
7182
7183 2018-01-31  Vladimir Makarov  <vmakarov@redhat.com>
7184
7185         PR target/82444
7186         * ira.c (ira_init_register_move_cost): Remove assert.
7187
7188 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
7189
7190         PR rtl-optimization/84071
7191         * doc/tm.texi.in (WORD_REGISTER_OPERATIONS): Add explicit case.
7192         * doc/tm.texi: Regenerate.
7193
7194 2018-01-31  Richard Biener  <rguenther@suse.de>
7195
7196         PR tree-optimization/84132
7197         * tree-data-ref.c (analyze_miv_subscript): Properly
7198         check whether evolution_function_is_affine_multivariate_p
7199         before calling gcd_of_steps_may_divide_p.
7200
7201 2018-01-31  Julia Koval  <julia.koval@intel.com>
7202
7203         PR target/83618
7204         * config/i386/i386.c (ix86_expand_builtin): Handle IX86_BUILTIN_RDPID.
7205         * config/i386/i386.md (rdpid_rex64) New.
7206         (rdpid): Make 32bit only.
7207
7208 2018-01-29  Aldy Hernandez  <aldyh@redhat.com>
7209
7210         PR lto/84105
7211         * tree-pretty-print.c (dump_generic_node): Handle a TYPE_NAME with
7212         an IDENTIFIER_NODE for FUNCTION_TYPE's.
7213
7214 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
7215
7216         Revert
7217         2018-01-12  Eric Botcazou  <ebotcazou@adacore.com>
7218
7219         * config/sparc/sparc.md (vxworks_load_got): Set the GOT register.
7220
7221 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
7222
7223         PR rtl-optimization/84071
7224         * combine.c (record_dead_and_set_regs_1): Record the source unmodified
7225         for a paradoxical SUBREG on a WORD_REGISTER_OPERATIONS target.
7226
7227 2018-01-31  Claudiu Zissulescu  <claziss@synopsys.com>
7228
7229         * config/arc/arc.c (arc_handle_aux_attribute): New function.
7230         (arc_attribute_table): Add 'aux' attribute.
7231         (arc_in_small_data_p): Consider aux like variables.
7232         (arc_is_aux_reg_p): New function.
7233         (arc_asm_output_aligned_decl_local): Ignore 'aux' like variables.
7234         (arc_get_aux_arg): New function.
7235         (prepare_move_operands): Handle aux-register access.
7236         (arc_handle_aux_attribute): New function.
7237         * doc/extend.texi (ARC Variable attributes): Add subsection.
7238
7239 2018-01-31  Claudiu Zissulescu  <claziss@synopsys.com>
7240
7241         * config/arc/arc-protos.h (arc_is_uncached_mem_p): Function proto.
7242         * config/arc/arc.c (arc_handle_uncached_attribute): New function.
7243         (arc_attribute_table): Add 'uncached' attribute.
7244         (arc_print_operand): Print '.di' flag for uncached memory
7245         accesses.
7246         (arc_in_small_data_p): Do not consider for small data the uncached
7247         types.
7248         (arc_is_uncached_mem_p): New function.
7249         * config/arc/predicates.md (compact_store_memory_operand): Check
7250         for uncached memory accesses.
7251         (nonvol_nonimm_operand): Likewise.
7252         * gcc/doc/extend.texi (ARC Type Attribute): New subsection.
7253
7254 2018-01-31  Jakub Jelinek  <jakub@redhat.com>
7255
7256         PR c/84100
7257         * common.opt (falign-functions=, falign-jumps=, falign-labels=,
7258         falign-loops=): Add Optimization flag.
7259
7260 2018-01-30  Jeff Law  <law@redhat.com>
7261
7262         PR target/84064
7263         * i386.c (ix86_adjust_stack_and_probe_stack_clash): New argument
7264         INT_REGISTERS_SAVED.  Check it prior to calling
7265         get_scratch_register_on_entry.
7266         (ix86_adjust_stack_and_probe): Similarly.
7267         (ix86_emit_probe_stack_range): Similarly.
7268         (ix86_expand_prologue): Corresponding changes.
7269
7270 2018-01-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
7271
7272         PR target/40411
7273         * config/sol2.h (STARTFILE_ARCH_SPEC): Use -std=c*,
7274         -std=iso9899:199409 instead of -pedantic to select values-Xc.o.
7275
7276 2018-01-30  Vladimir Makarov  <vmakarov@redhat.com>
7277
7278         PR target/84112
7279         * lra-constraints.c (curr_insn_transform): Process AND in the
7280         address.
7281
7282 2018-01-30  Jakub Jelinek  <jakub@redhat.com>
7283
7284         PR rtl-optimization/83986
7285         * sched-deps.c (sched_analyze_insn): For frame related insns, add anti
7286         dependence against last_pending_memory_flush in addition to
7287         pending_jump_insns.
7288
7289 2018-01-30  Alexandre Oliva  <aoliva@redhat.com>
7290
7291         PR tree-optimization/81611
7292         * tree-ssa-dom.c (simple_iv_increment_p): Skip intervening
7293         copies.
7294
7295 2018-01-30  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
7296
7297         PR target/83758
7298         * config/rs6000/rs6000.c (rs6000_internal_arg_pointer): Only return
7299         a reg rtx.
7300
7301 2018-01-30  Richard Biener  <rguenther@suse.de>
7302             Jakub Jelinek  <jakub@redhat.com>
7303
7304         PR tree-optimization/84111
7305         * tree-ssa-loop-ivcanon.c (tree_unroll_loops_completely_1): Skip
7306         inner loops added during recursion, as they don't have up-to-date
7307         SSA form.
7308
7309 2018-01-30  Jan Hubicka  <hubicka@ucw.cz>
7310
7311         PR ipa/81360
7312         * ipa-inline.c (can_inline_edge_p): Break out late tests to...
7313         (can_inline_edge_by_limits_p): ... here.
7314         (can_early_inline_edge_p, check_callers,
7315         update_caller_keys, update_callee_keys, recursive_inlining,
7316         add_new_edges_to_heap, speculation_useful_p,
7317         inline_small_functions,
7318         inline_small_functions, flatten_function,
7319         inline_to_all_callers_1): Update.
7320
7321 2018-01-30  Jan Hubicka  <hubicka@ucw.cz>
7322
7323         * profile-count.c (profile_count::combine_with_ipa_count): Handle
7324         zeros correctly.
7325
7326 2018-01-30  Richard Biener  <rguenther@suse.de>
7327
7328         PR tree-optimization/83008
7329         * tree-vect-slp.c (vect_analyze_slp_cost_1): Properly cost
7330         invariant and constant vector uses in stmts when they need
7331         more than one stmt.
7332
7333 2018-01-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
7334
7335         PR bootstrap/84017
7336         * configure.ac (gcc_cv_as_shf_merge): Disable on Solaris 10/x86.
7337         * configure: Regenerate.
7338
7339 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
7340
7341         * config/aarch64/aarch64-sve.md (*vec_extract<mode><Vel>_0): New
7342         pattern.
7343         (*vec_extract<mode><Vel>_v128): Require a nonzero lane number.
7344         Use gen_rtx_REG rather than gen_lowpart.
7345
7346 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
7347
7348         * lra-constraints.c (match_reload): Use subreg_lowpart_offset
7349         rather than 0 when creating partial subregs.
7350
7351 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
7352
7353         * vec-perm-indices.c (vec_perm_indices::series_p): Give examples
7354         of usage.
7355
7356 2018-01-29  Michael Meissner  <meissner@linux.vnet.ibm.com>
7357
7358         PR target/81550
7359         * config/rs6000/rs6000.c (rs6000_setup_reg_addr_masks): If DFmode
7360         and SFmode can go in Altivec registers (-mcpu=power7 for DFmode,
7361         -mcpu=power8 for SFmode) don't set the PRE_INCDEC or PRE_MODIFY
7362         flags.  This restores the settings used before the 2017-07-24.
7363         Turning off pre increment/decrement/modify allows IVOPTS to
7364         optimize DF/SF loops where the index is an int.
7365
7366 2018-01-29  Richard Biener  <rguenther@suse.de>
7367             Kelvin Nilsen  <kelvin@gcc.gnu.org>
7368
7369         PR bootstrap/80867
7370         * tree-vect-stmts.c (vectorizable_call): Don't call
7371         targetm.vectorize_builtin_md_vectorized_function if callee is
7372         NULL.
7373
7374 2018-01-22  Carl Love  <cel@us.ibm.com>
7375
7376         * doc/extend.tex: Fix typo in second arg in
7377         __builtin_bcdadd_{lt|eq|gt|ov} and __builtin_bcdsub_{lt|eq|gt|ov}.
7378
7379 2018-01-29  Richard Biener  <rguenther@suse.de>
7380
7381         PR tree-optimization/84086
7382         * tree-ssanames.c: Include cfgloop.h and tree-scalar-evolution.h.
7383         (flush_ssaname_freelist): When SSA names were released reset
7384         the SCEV hash table.
7385
7386 2018-01-29  Richard Biener  <rguenther@suse.de>
7387
7388         PR tree-optimization/84057
7389         * tree-ssa-loop-ivcanon.c (unloop_loops): Deal with already
7390         removed paths when removing edges.
7391
7392 2018-01-27  H.J. Lu  <hongjiu.lu@intel.com>
7393
7394         * doc/invoke.texi: Replace -mfunction-return==@var{choice} with
7395         -mfunction-return=@var{choice}.
7396
7397 2018-01-27  Bernd Edlinger  <bernd.edlinger@hotmail.de>
7398
7399         PR diagnostic/84034
7400         * diagnostic-show-locus.c (get_line_width_without_trailing_whitespace):
7401         Handle CR like TAB.
7402         (layout::print_source_line): Likewise.
7403         (test_get_line_width_without_trailing_whitespace): Add test cases.
7404
7405 2018-01-27  Jakub Jelinek  <jakub@redhat.com>
7406
7407         PR middle-end/84040
7408         * sched-deps.c (sched_macro_fuse_insns): Return immediately for
7409         debug insns.
7410
7411 2018-01-26  Jim Wilson  <jimw@sifive.com>
7412
7413         * config/riscv/riscv.h (MAX_FIXED_MODE_SIZE): New.
7414
7415         * config/riscv/elf.h (LIB_SPEC): Don't include -lgloss when nosys.specs
7416         specified.
7417
7418 2018-01-26  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
7419
7420         * config/aarch64/aarch64.md: Add peepholes for CMP + SUB -> SUBS
7421         and CMP + SUB-immediate -> SUBS.
7422
7423 2018-01-26  Martin Sebor  <msebor@redhat.com>
7424
7425         PR tree-optimization/83896
7426         * tree-ssa-strlen.c (get_string_len): Rename...
7427         (get_string_cst_length): ...to this.  Return HOST_WIDE_INT.
7428         Avoid assuming length is constant.
7429         (handle_char_store): Use HOST_WIDE_INT for string length.
7430
7431 2018-01-26  Uros Bizjak  <ubizjak@gmail.com>
7432
7433         PR target/81763
7434         * config/i386/i386.md (*andndi3_doubleword): Add earlyclobber
7435         to (=&r,r,rm) alternative. Add (=r,0,rm) and (=r,r,0) alternatives.
7436
7437 2018-01-26  Richard Biener  <rguenther@suse.de>
7438
7439         PR rtl-optimization/84003
7440         * dse.c (record_store): Only record redundant stores when
7441         the earlier store aliases at least all accesses the later one does.
7442
7443 2018-01-26  Jakub Jelinek  <jakub@redhat.com>
7444
7445         PR rtl-optimization/83985
7446         * dce.c (deletable_insn_p): Return false for separate shrink wrapping
7447         REG_CFA_RESTORE insns.
7448         (delete_unmarked_insns): Don't ignore separate shrink wrapping
7449         REG_CFA_RESTORE insns here.
7450
7451         PR c/83989
7452         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Don't
7453         use SSA_NAME_VAR as base for SSA_NAMEs with non-NULL SSA_NAME_VAR.
7454
7455 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
7456
7457         * config/arc/arc-arch.h (arc_tune_attr): Add ARC_TUNE_CORE_3.
7458         * config/arc/arc.c (arc_sched_issue_rate): Use ARC_TUNE_... .
7459         (arc_init): Likewise.
7460         (arc_override_options): Likewise.
7461         (arc_file_start): Choose Tag_ARC_CPU_variation based on arc_tune
7462         value.
7463         (hwloop_fail): Use TARGET_DBNZ when we want to check for dbnz insn
7464         support.
7465         * config/arc/arc.h (TARGET_DBNZ): Define.
7466         * config/arc/arc.md (attr tune): Add core_3, use ARC_TUNE_... to
7467         properly set the tune attribute.
7468         (dbnz): Use TARGET_DBNZ guard.
7469         * config/arc/arc.opt (mtune): Add core3 option.
7470
7471 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
7472
7473         * config/arc/arc.c (arc_delegitimize_address_0): Refactored to
7474         recognize new pic like addresses.
7475         (arc_delegitimize_address): Clean up.
7476
7477 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
7478
7479         * config/arc/arc-arches.def: Option mrf16 valid for all
7480         architectures.
7481         * config/arc/arc-c.def (__ARC_RF16__): New predefined macro.
7482         * config/arc/arc-cpus.def (em_mini): New cpu with rf16 on.
7483         * config/arc/arc-options.def (FL_RF16): Add mrf16 option.
7484         * config/arc/arc-tables.opt: Regenerate.
7485         * config/arc/arc.c (arc_conditional_register_usage): Handle
7486         reduced register file case.
7487         (arc_file_start): Set must have build attributes.
7488         * config/arc/arc.h (MAX_ARC_PARM_REGS): Conditional define using
7489         mrf16 option value.
7490         * config/arc/arc.opt (mrf16): Add new option.
7491         * config/arc/elf.h (ATTRIBUTE_PCS): Define.
7492         * config/arc/genmultilib.awk: Handle new mrf16 option.
7493         * config/arc/linux.h (ATTRIBUTE_PCS): Define.
7494         * config/arc/t-multilib: Regenerate.
7495         * doc/invoke.texi (ARC Options): Document mrf16 option.
7496
7497 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
7498
7499         * config/arc/arc-protos.h: Add arc_is_secure_call_p proto.
7500         * config/arc/arc.c (arc_handle_secure_attribute): New function.
7501         (arc_attribute_table): Add 'secure_call' attribute.
7502         (arc_print_operand): Print secure call operand.
7503         (arc_function_ok_for_sibcall): Don't optimize tail calls when
7504         secure.
7505         (arc_is_secure_call_p): New function.  * config/arc/arc.md
7506         (call_i): Add support for sjli instruction.
7507         (call_value_i): Likewise.
7508         * config/arc/constraints.md (Csc): New constraint.
7509
7510 2018-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
7511             John Eric Martin  <John.Martin@emmicro-us.com>
7512
7513         * config/arc/arc-protos.h: Add arc_is_jli_call_p proto.
7514         * config/arc/arc.c (_arc_jli_section): New struct.
7515         (arc_jli_section): New type.
7516         (rc_jli_sections): New static variable.
7517         (arc_handle_jli_attribute): New function.
7518         (arc_attribute_table): Add jli_always and jli_fixed attribute.
7519         (arc_file_end): New function.
7520         (TARGET_ASM_FILE_END): Define.
7521         (arc_print_operand): Reuse 'S' letter for JLI output instruction.
7522         (arc_add_jli_section): New function.
7523         (jli_call_scan): Likewise.
7524         (arc_reorg): Call jli_call_scan.
7525         (arc_output_addsi): Remove 'S' from printing asm operand.
7526         (arc_is_jli_call_p): New function.
7527         * config/arc/arc.md (movqi_insn): Remove 'S' from printing asm
7528         operand.
7529         (movhi_insn): Likewise.
7530         (movsi_insn): Likewise.
7531         (movsi_set_cc_insn): Likewise.
7532         (loadqi_update): Likewise.
7533         (load_zeroextendqisi_update): Likewise.
7534         (load_signextendqisi_update): Likewise.
7535         (loadhi_update): Likewise.
7536         (load_zeroextendhisi_update): Likewise.
7537         (load_signextendhisi_update): Likewise.
7538         (loadsi_update): Likewise.
7539         (loadsf_update): Likewise.
7540         (movsicc_insn): Likewise.
7541         (bset_insn): Likewise.
7542         (bxor_insn): Likewise.
7543         (bclr_insn): Likewise.
7544         (bmsk_insn): Likewise.
7545         (bicsi3_insn): Likewise.
7546         (cmpsi_cc_c_insn): Likewise.
7547         (movsi_ne): Likewise.
7548         (movsi_cond_exec): Likewise.
7549         (clrsbsi2): Likewise.
7550         (norm_f): Likewise.
7551         (normw): Likewise.
7552         (swap): Likewise.
7553         (divaw): Likewise.
7554         (flag): Likewise.
7555         (sr): Likewise.
7556         (kflag): Likewise.
7557         (ffs): Likewise.
7558         (ffs_f): Likewise.
7559         (fls): Likewise.
7560         (call_i): Remove 'S' asm letter, add jli instruction.
7561         (call_value_i): Likewise.
7562         * config/arc/arc.op (mjli-always): New option.
7563         * config/arc/constraints.md (Cji): New constraint.
7564         * config/arc/fpx.md (addsf3_fpx): Remove 'S' from printing asm
7565         operand.
7566         (subsf3_fpx): Likewise.
7567         (mulsf3_fpx): Likewise.
7568         * config/arc/simdext.md (vendrec_insn): Remove 'S' from printing
7569         asm operand.
7570         * doc/extend.texi (ARC): Document 'jli-always' and 'jli-fixed'
7571         function attrbutes.
7572         * doc/invoke.texi (ARC): Document mjli-always option.
7573
7574 2018-01-26  Sebastian Perta  <sebastian.perta@renesas.com>
7575
7576         * config/rl78/rl78.c (rl78_addsi3_internal): If operand 2 is const
7577         avoid addition with 0 and use incw and decw where possible.
7578
7579 2018-01-26  Richard Biener  <rguenther@suse.de>
7580
7581         PR tree-optimization/81082
7582         * fold-const.c (fold_plusminus_mult_expr): Do not perform the
7583         association if it requires casting to unsigned.
7584         * match.pd ((A * C) +- (B * C) -> (A+-B)): New patterns derived
7585         from fold_plusminus_mult_expr to catch important cases late when
7586         range info is available.
7587
7588 2018-01-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
7589
7590         * config/i386/sol2.h (USE_HIDDEN_LINKONCE): Remove.
7591         * configure.ac (hidden_linkonce): New test.
7592         * configure: Regenerate.
7593         * config.in: Regenerate.
7594
7595 2018-01-26  Julia Koval  <julia.koval@intel.com>
7596
7597         * config/i386/avx512bitalgintrin.h (_mm512_bitshuffle_epi64_mask,
7598         _mm512_mask_bitshuffle_epi64_mask, _mm256_bitshuffle_epi64_mask,
7599         _mm256_mask_bitshuffle_epi64_mask, _mm_bitshuffle_epi64_mask,
7600         _mm_mask_bitshuffle_epi64_mask): Fix type.
7601         * config/i386/i386-builtin-types.def (UHI_FTYPE_V2DI_V2DI_UHI,
7602         USI_FTYPE_V4DI_V4DI_USI): Remove.
7603         * config/i386/i386-builtin.def (__builtin_ia32_vpshufbitqmb512_mask,
7604         __builtin_ia32_vpshufbitqmb256_mask,
7605         __builtin_ia32_vpshufbitqmb128_mask): Fix types.
7606         * config/i386/i386.c (ix86_expand_args_builtin): Remove old types.
7607         * config/i386/sse.md (VI1_AVX512VLBW): Change types.
7608
7609 2018-01-26  Alan Modra  <amodra@gmail.com>
7610
7611         PR target/84033
7612         * config/rs6000/rs6000-p8swap.c (rtx_is_swappable_p): Exclude
7613         UNSPEC_VBPERMQ.  Sort other unspecs.
7614
7615 2018-01-25  David Edelsohn  <dje.gcc@gmail.com>
7616
7617         * doc/invoke.texi (PowerPC Options): Document 'native' cpu type.
7618
7619 2018-01-25  Jan Hubicka  <hubicka@ucw.cz>
7620
7621         PR middle-end/83055
7622         * predict.c (drop_profile): Do not push/pop cfun; update also
7623         node->count.
7624         (handle_missing_profiles): Fix logic looking for zero profiles.
7625
7626 2018-01-25  Jakub Jelinek  <jakub@redhat.com>
7627
7628         PR middle-end/83977
7629         * ipa-fnsummary.c (compute_fn_summary): Clear can_change_signature
7630         on functions with #pragma omp declare simd or functions with simd
7631         attribute.
7632         * omp-simd-clone.c (expand_simd_clones): Revert 2018-01-24 change.
7633         * config/i386/i386.c (ix86_simd_clone_compute_vecsize_and_simdlen):
7634         Remove trailing \n from warning_at calls.
7635
7636 2018-01-25  Tom de Vries  <tom@codesourcery.com>
7637
7638         PR target/84028
7639         * config/nvptx/nvptx.c (nvptx_single): Add exit insn after noreturn call
7640         for neutered workers.
7641
7642 2018-01-24  Joseph Myers  <joseph@codesourcery.com>
7643
7644         PR target/68467
7645         * config/m68k/m68k.c (m68k_promote_function_mode): New function.
7646         (TARGET_PROMOTE_FUNCTION_MODE): New macro.
7647
7648 2018-01-24  Jeff Law  <law@redhat.com>
7649
7650         PR target/83994
7651         * i386.c (get_probe_interval): Move to earlier point.
7652         (ix86_compute_frame_layout): If -fstack-clash-protection and
7653         the frame is larger than the probe interval, then use pushes
7654         to save registers rather than reg->mem moves.
7655         (ix86_expand_prologue): Remove conditional for int_registers_saved
7656         assertion.
7657
7658 2018-01-24  Vladimir Makarov  <vmakarov@redhat.com>
7659
7660         PR target/84014
7661         * ira-build.c (setup_min_max_allocno_live_range_point): Set up
7662         min/max for never referenced object.
7663
7664 2018-01-24  Jakub Jelinek  <jakub@redhat.com>
7665
7666         PR middle-end/83977
7667         * tree.c (free_lang_data_in_decl): Don't clear DECL_ABSTRACT_ORIGIN
7668         here.
7669         * omp-low.c (create_omp_child_function): Remove "omp declare simd"
7670         attributes from DECL_ATTRIBUTES (decl) without affecting
7671         DECL_ATTRIBUTES (current_function_decl).
7672         * omp-simd-clone.c (expand_simd_clones): Ignore DECL_ARTIFICIAL
7673         functions with non-NULL DECL_ABSTRACT_ORIGIN.
7674
7675 2018-01-24  Richard Sandiford  <richard.sandiford@linaro.org>
7676
7677         PR tree-optimization/83979
7678         * fold-const.c (fold_comparison): Use constant_boolean_node
7679         instead of boolean_{true,false}_node.
7680
7681 2018-01-24  Jan Hubicka  <hubicka@ucw.cz>
7682
7683         * ipa-profile.c (ipa_propagate_frequency_1): Fix logic skipping calls
7684         with zero counts.
7685
7686 2018-01-24  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
7687
7688         * config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
7689         Simplify the clause that sets the length attribute.
7690         (*call_value_indirect_nonlocal_sysv<mode>): Likewise.
7691         (*sibcall_nonlocal_sysv<mode>): Clean up code block; simplify the
7692         clause that sets the length attribute.
7693         (*sibcall_value_nonlocal_sysv<mode>): Likewise.
7694
7695 2018-01-24  Tom de Vries  <tom@codesourcery.com>
7696
7697         PR target/83589
7698         * config/nvptx/nvptx.c (WORKAROUND_PTXJIT_BUG_2): Define to 1.
7699         (nvptx_pc_set, nvptx_condjump_label): New function. Copy from jump.c.
7700         Add strict parameter.
7701         (prevent_branch_around_nothing): Insert dummy insn between branch to
7702         label and label with no ptx insn inbetween.
7703         * config/nvptx/nvptx.md (define_insn "fake_nop"): New insn.
7704
7705 2018-01-24  Tom de Vries  <tom@codesourcery.com>
7706
7707         PR target/81352
7708         * config/nvptx/nvptx.c (nvptx_single): Add exit insn after noreturn call
7709         for neutered threads in warp.
7710         * config/nvptx/nvptx.md (define_insn "exit"): New insn.
7711
7712 2018-01-24  Richard Biener  <rguenther@suse.de>
7713
7714         PR tree-optimization/83176
7715         * tree-chrec.c (chrec_fold_plus_1): Handle (signed T){(T) .. }
7716         operands.
7717
7718 2018-01-24  Richard Biener  <rguenther@suse.de>
7719
7720         PR tree-optimization/82819
7721         * graphite-isl-ast-to-gimple.c (binary_op_to_tree): Avoid
7722         code generating pluses that are no-ops in the target precision.
7723
7724 2018-01-24  Richard Biener  <rguenther@suse.de>
7725
7726         PR middle-end/84000
7727         * tree-cfg.c (replace_loop_annotate): Handle annot_expr_parallel_kind.
7728
7729 2018-01-23  Jan Hubicka  <hubicka@ucw.cz>
7730
7731         * cfgcleanup.c (try_crossjump_to_edge): Use combine_with_count
7732         to merge probabilities.
7733         * predict.c (probably_never_executed): Also mark as cold functions
7734         with global 0 profile and guessed local profile.
7735         * profile-count.c (profile_probability::combine_with_count): New
7736         member function.
7737         * profile-count.h (profile_probability::operator*,
7738         profile_probability::operator*=, profile_probability::operator/,
7739         profile_probability::operator/=): Reduce precision to adjusted
7740         and set value to guessed on contradictory divisions.
7741         (profile_probability::combine_with_freq): Remove.
7742         (profile_probability::combine_wiht_count): Declare.
7743         (profile_count::force_nonzero):: Set to adjusted.
7744         (profile_count::probability_in):: Set quality to adjusted.
7745         * tree-ssa-tail-merge.c (replace_block_by): Use
7746         combine_with_count.
7747
7748 2018-01-23  Andrew Waterman  <andrew@sifive.com>
7749             Jim Wilson  <jimw@sifive.com>
7750
7751         * config/riscv/riscv.c (riscv_stack_boundary): New.
7752         (riscv_option_override): Set riscv_stack_boundary.  Handle
7753         riscv_preferred_stack_boundary_arg.
7754         * config/riscv/riscv.h (MIN_STACK_BOUNDARY, ABI_STACK_BOUNDARY): New.
7755         (BIGGEST_ALIGNMENT): Set to STACK_BOUNDARY.
7756         (STACK_BOUNDARY): Set to riscv_stack_boundary.
7757         (RISCV_STACK_ALIGN): Use STACK_BOUNDARY.
7758         * config/riscv/riscv.opt (mpreferred-stack-boundary): New.
7759         * doc/invoke.tex (RISC-V Options): Add -mpreferred-stack-boundary.
7760
7761 2018-01-23  H.J. Lu  <hongjiu.lu@intel.com>
7762
7763         PR target/83905
7764         * config/i386/i386.c (ix86_expand_prologue): Use cost reference
7765         of struct ix86_frame.
7766         (ix86_expand_epilogue): Likewise.  Add a local variable for
7767         the reg_save_offset field in struct ix86_frame.
7768
7769 2018-01-23  Bin Cheng  <bin.cheng@arm.com>
7770
7771         PR tree-optimization/82604
7772         * tree-loop-distribution.c (enum partition_kind): New enum item
7773         PKIND_PARTIAL_MEMSET.
7774         (partition_builtin_p): Support above new enum item.
7775         (generate_code_for_partition): Ditto.
7776         (compute_access_range): Differentiate cases that equality can be
7777         proven at all loops, the innermost loops or no loops.
7778         (classify_builtin_st, classify_builtin_ldst): Adjust call to above
7779         function.  Set PKIND_PARTIAL_MEMSET for partition appropriately.
7780         (finalize_partitions, distribute_loop): Don't fuse partition of
7781         PKIND_PARTIAL_MEMSET kind when distributing 3-level loop nest.
7782         (prepare_perfect_loop_nest): Distribute 3-level loop nest only if
7783         parloop is enabled.
7784
7785 2018-01-23  Martin Liska  <mliska@suse.cz>
7786
7787         * predict.def (PRED_INDIR_CALL): Set probability to PROB_EVEN in
7788         order to ignore the predictor.
7789         (PRED_POLYMORPHIC_CALL): Likewise.
7790         (PRED_RECURSIVE_CALL): Likewise.
7791
7792 2018-01-23  Martin Liska  <mliska@suse.cz>
7793
7794         * tree-profile.c (tree_profiling): Print function header to
7795         aware reader which function we are working on.
7796         * value-prof.c (gimple_find_values_to_profile): Do not print
7797         not interesting value histograms.
7798
7799 2018-01-23  Martin Liska  <mliska@suse.cz>
7800
7801         * profile-count.h (enum profile_quality): Add
7802         profile_uninitialized as the first value. Do not number values
7803         as they are zero based.
7804         (profile_count::verify): Update sanity check.
7805         (profile_probability::verify): Likewise.
7806
7807 2018-01-23  Nathan Sidwell  <nathan@acm.org>
7808
7809         * doc/invoke.texi (ffor-scope): Deprecate.
7810
7811 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
7812
7813         PR tree-optimization/83510
7814         * domwalk.c (set_all_edges_as_executable): New function.
7815         (dom_walker::dom_walker): Convert bool param
7816         "skip_unreachable_blocks" to enum reachability.  Move setup of
7817         edge flags to set_all_edges_as_executable and only do it when
7818         reachability is REACHABLE_BLOCKS.
7819         * domwalk.h (enum dom_walker::reachability): New enum.
7820         (dom_walker::dom_walker): Convert bool param
7821         "skip_unreachable_blocks" to enum reachability.
7822         (set_all_edges_as_executable): New decl.
7823         * graphite-scop-detection.c  (gather_bbs::gather_bbs): Convert
7824         from false for "skip_unreachable_blocks" to ALL_BLOCKS for
7825         "reachability".
7826         * tree-ssa-dom.c (dom_opt_dom_walker::dom_opt_dom_walker): Likewise,
7827         but converting true to REACHABLE_BLOCKS.
7828         * tree-ssa-sccvn.c (sccvn_dom_walker::sccvn_dom_walker): Likewise.
7829         * tree-vrp.c
7830         (check_array_bounds_dom_walker::check_array_bounds_dom_walker):
7831         Likewise, but converting it to REACHABLE_BLOCKS_PRESERVING_FLAGS.
7832         (vrp_dom_walker::vrp_dom_walker): Likewise, but converting it to
7833         REACHABLE_BLOCKS.
7834         (vrp_prop::vrp_finalize): Call set_all_edges_as_executable
7835         if check_all_array_refs will be called.
7836
7837 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
7838
7839         * tree.c (selftest::test_location_wrappers): Add more test
7840         coverage.
7841
7842 2018-01-23  David Malcolm  <dmalcolm@redhat.com>
7843
7844         * sbitmap.c (selftest::test_set_range): Fix memory leaks.
7845         (selftest::test_bit_in_range): Likewise.
7846
7847 2018-01-23  Richard Sandiford  <richard.sandiford@linaro.org>
7848
7849         PR testsuite/83888
7850         * doc/sourcebuild.texi (vect_float): Say that the selector
7851         only describes the situation when -funsafe-math-optimizations is on.
7852         (vect_float_strict): Document.
7853
7854 2018-01-23  Richard Sandiford  <richard.sandiford@linaro.org>
7855
7856         PR tree-optimization/83965
7857         * tree-vect-patterns.c (vect_reassociating_reduction_p): New function.
7858         (vect_recog_dot_prod_pattern, vect_recog_sad_pattern): Use it
7859         instead of checking only for a reduction.
7860         (vect_recog_widen_sum_pattern): Likewise.
7861
7862 2018-01-23  Jan Hubicka  <hubicka@ucw.cz>
7863
7864         * predict.c (probably_never_executed): Only use precise profile info.
7865         (compute_function_frequency): Skip after inlining hack since we now
7866         have quality checking.
7867
7868 2018-01-23  Jan Hubicka  <hubicka@ucw.cz>
7869
7870         * profile-count.h (profile_probability::very_unlikely,
7871         profile_probability::unlikely, profile_probability::even): Set
7872         precision to guessed.
7873
7874 2018-01-23  Richard Biener  <rguenther@suse.de>
7875
7876         PR tree-optimization/83963
7877         * graphite-scop-detection.c (scop_detection::harmful_loop_in_region):
7878         Properly terminate dominator walk when crossing the exit edge not
7879         when visiting its source block.
7880
7881 2018-01-23  Jakub Jelinek  <jakub@redhat.com>
7882
7883         PR c++/83918
7884         * tree.c (maybe_wrap_with_location): Use NON_LVALUE_EXPR rather than
7885         VIEW_CONVERT_EXPR to wrap CONST_DECLs.
7886
7887 2018-01-22  Jakub Jelinek  <jakub@redhat.com>
7888
7889         PR tree-optimization/83957
7890         * omp-expand.c (expand_omp_for_generic): Ignore virtual PHIs.  Remove
7891         semicolon after for body surrounded by braces.
7892
7893         PR tree-optimization/83081
7894         * profile-count.h (profile_probability::split): New method.
7895         * dojump.c (do_jump_1) <case TRUTH_ANDIF_EXPR, case TRUTH_ORIF_EXPR>:
7896         Use profile_probability::split.
7897         (do_compare_rtx_and_jump): Fix adjustment of probabilities
7898         when splitting a single conditional jump into 2.
7899
7900 2018-01-22  David Malcolm  <dmalcolm@redhat.com>
7901
7902         PR tree-optimization/69452
7903         * tree-ssa-loop-im.c (class move_computations_dom_walker): Remove
7904         decl.
7905
7906 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
7907
7908         * config/rl78/rl78-expand.md (bswaphi2): New define_expand.
7909         * config/rl78/rl78-virt.md (*bswaphi2_virt): New define_insn.
7910         * config/rl78/rl78-real.md (*bswaphi2_real): New define_insn.
7911
7912 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
7913
7914         * config/rl78/rl78-protos.h (rl78_split_movdi): New function declaration.
7915         * config/rl78/rl78.md (movdi): New define_expand.
7916         * config/rl78/rl78.c (rl78_split_movdi): New function.
7917
7918 2018-01-22  Michael Meissner  <meissner@linux.vnet.ibm.com>
7919
7920         PR target/83862
7921         * config/rs6000/rs6000-protos.h (rs6000_split_signbit): Delete,
7922         no longer used.
7923         * config/rs6000/rs6000.c (rs6000_split_signbit): Likewise.
7924         * config/rs6000/rs6000.md (signbit<mode>2): Change code for IEEE
7925         128-bit to produce an UNSPEC move to get the double word with the
7926         signbit and then a shift directly to do signbit.
7927         (signbit<mode>2_dm): Replace old IEEE 128-bit signbit
7928         implementation with a new version that just does either a direct
7929         move or a regular move.  Move memory interface to separate insns.
7930         Move insns so they are next to the expander.
7931         (signbit<mode>2_dm_mem_be): New combiner insns to combine load
7932         with signbit move.  Split big and little endian case.
7933         (signbit<mode>2_dm_mem_le): Likewise.
7934         (signbit<mode>2_dm_<su>ext): Delete, no longer used.
7935         (signbit<mode>2_dm2): Likewise.
7936
7937 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
7938
7939         * config/rl78/rl78.md (anddi3): New define_expand.
7940
7941 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
7942
7943         * config/rl78/rl78.md (umindi3): New define_expand.
7944
7945 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
7946
7947         * config/rl78/rl78.md (smindi3): New define_expand.
7948
7949 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
7950
7951         * config/rl78/rl78.md (smaxdi3): New define_expand.
7952
7953 2018-01-22  Carl Love  <cel@us.ibm.com>
7954
7955         * config/rs6000/rs6000-builtin.def (ST_ELEMREV_V1TI, LD_ELEMREV_V1TI,
7956         LVX_V1TI): Add macro expansion.
7957         * config/rs6000/rs6000-c.c (altivec_builtin_types): Add argument
7958         definitions for VSX_BUILTIN_VEC_XST_BE, VSX_BUILTIN_VEC_ST,
7959         VSX_BUILTIN_VEC_XL, LD_ELEMREV_V1TI builtins.
7960         * config/rs6000/rs6000-p8swap.c (insn_is_swappable_p);
7961         Change check to determine if the instruction is a byte reversing
7962         entry.  Fix typo in comment.
7963         * config/rs6000/rs6000.c (altivec_expand_builtin): Add case entry
7964         for VSX_BUILTIN_ST_ELEMREV_V1TI and VSX_BUILTIN_LD_ELEMREV_V1TI.
7965         Add def_builtin calls for new builtins.
7966         * config/rs6000/vsx.md (vsx_st_elemrev_v1ti, vsx_ld_elemrev_v1ti):
7967         Add define_insn expansion.
7968
7969 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
7970
7971         * config/rl78/rl78.md (umaxdi3): New define_expand.
7972
7973 2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
7974
7975         * config/rl78/rl78.c (rl78_note_reg_set): Fixed dead reg check
7976         for non-QImode registers.
7977
7978 2018-01-22  Richard Biener  <rguenther@suse.de>
7979
7980         PR tree-optimization/83963
7981         * graphite-scop-detection.c (scop_detection::get_sese): Delay
7982         including the loop exit block.
7983         (scop_detection::merge_sese): Likewise.
7984         (scop_detection::add_scop): Do it here instead.
7985
7986 2018-01-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
7987
7988         * doc/sourcebuild.texi (arm_softfloat): Document.
7989
7990 2018-01-21  John David Anglin  <danglin@gcc.gnu.org>
7991
7992         PR gcc/77734
7993         * config/pa/pa.c (pa_function_ok_for_sibcall): Use
7994         targetm.binds_local_p instead of TREE_PUBLIC to check local binding.
7995         Move TARGET_PORTABLE_RUNTIME check after TARGET_64BIT check.
7996
7997 2018-01-21  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
7998             David Edelsohn  <dje.gcc@gmail.com>
7999
8000         PR target/83946
8001         * config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
8002         Change "crset eq" to "crset 2".
8003         (*call_value_indirect_nonlocal_sysv<mode>): Likewise.
8004         (*call_indirect_aix<mode>_nospec): Likewise.
8005         (*call_value_indirect_aix<mode>_nospec): Likewise.
8006         (*call_indirect_elfv2<mode>_nospec): Likewise.
8007         (*call_value_indirect_elfv2<mode>_nospec): Likewise.
8008         (*sibcall_nonlocal_sysv<mode>): Change "crset eq" to "crset 2";
8009         change assembly output from . to $.
8010         (*sibcall_value_nonlocal_sysv<mode>): Likewise.
8011         (indirect_jump<mode>_nospec): Change assembly output from . to $.
8012         (*tablejump<mode>_internal1_nospec): Likewise.
8013
8014 2018-01-21  Oleg Endo  <olegendo@gcc.gnu.org>
8015
8016         PR target/80870
8017         * config/sh/sh_optimize_sett_clrt.cc:
8018         Use INCLUDE_ALGORITHM and INCLUDE_VECTOR instead of direct includes.
8019
8020 2018-01-20  Richard Sandiford  <richard.sandiford@linaro.org>
8021
8022         PR tree-optimization/83940
8023         * tree-vect-stmts.c (vect_truncate_gather_scatter_offset): Set
8024         offset_dt to vect_constant_def rather than vect_unknown_def_type.
8025         (vect_check_load_store_mask): Add a mask_dt_out parameter and
8026         use it to pass back the definition type.
8027         (vect_check_store_rhs): Likewise rhs_dt_out.
8028         (vect_build_gather_load_calls): Add a mask_dt argument and use
8029         it instead of a call to vect_is_simple_use.
8030         (vectorizable_store): Update calls to vect_check_load_store_mask
8031         and vect_check_store_rhs.  Use the dt returned by the latter instead
8032         of scatter_src_dt.  Use the cached mask_dt and gs_info.offset_dt
8033         instead of calls to vect_is_simple_use.  Pass the scalar rather
8034         than the vector operand to vect_is_simple_use when handling
8035         second and subsequent copies of an rhs value.
8036         (vectorizable_load): Update calls to vect_check_load_store_mask
8037         and vect_build_gather_load_calls.  Use the cached mask_dt and
8038         gs_info.offset_dt instead of calls to vect_is_simple_use.
8039
8040 2018-01-20  Jakub Jelinek  <jakub@redhat.com>
8041
8042         PR middle-end/83945
8043         * tree-emutls.c: Include gimplify.h.
8044         (lower_emutls_2): New function.
8045         (lower_emutls_1): If ADDR_EXPR is a gimple invariant and walk_tree
8046         with lower_emutls_2 callback finds some TLS decl in it, unshare_expr
8047         it before further processing.
8048
8049         PR target/83930
8050         * simplify-rtx.c (simplify_binary_operation_1) <case UMOD>: Use
8051         UINTVAL (trueop1) instead of INTVAL (op1).
8052
8053 2018-01-19  Jakub Jelinek  <jakub@redhat.com>
8054
8055         PR debug/81570
8056         PR debug/83728
8057         * dwarf2cfi.c (DEFAULT_INCOMING_FRAME_SP_OFFSET): Define to
8058         INCOMING_FRAME_SP_OFFSET if not defined.
8059         (scan_trace): Add ENTRY argument.  If true and
8060         DEFAULT_INCOMING_FRAME_SP_OFFSET != INCOMING_FRAME_SP_OFFSET,
8061         emit a note to adjust the CFA offset.
8062         (create_cfi_notes): Adjust scan_trace callers.
8063         (create_cie_data): Use DEFAULT_INCOMING_FRAME_SP_OFFSET rather than
8064         INCOMING_FRAME_SP_OFFSET in the CIE.
8065         * config/i386/i386.h (DEFAULT_INCOMING_FRAME_SP_OFFSET): Define.
8066         * config/stormy16/stormy16.h (DEFAULT_INCOMING_FRAME_SP_OFFSET):
8067         Likewise.
8068         * doc/tm.texi.in (DEFAULT_INCOMING_FRAME_SP_OFFSET): Document.
8069         * doc/tm.texi: Regenerated.
8070
8071 2018-01-19  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
8072
8073         PR rtl-optimization/83147
8074         * lra-constraints.c (remove_inheritance_pseudos): Use
8075         lra_substitute_pseudo_within_insn.
8076
8077 2018-01-19  Tom de Vries  <tom@codesourcery.com>
8078             Cesar Philippidis  <cesar@codesourcery.com>
8079
8080         PR target/83920
8081         * config/nvptx/nvptx.c (nvptx_single): Fix jit workaround.
8082
8083 2018-01-19  Cesar Philippidis  <cesar@codesourcery.com>
8084
8085         PR target/83790
8086         * config/nvptx/nvptx.c (output_init_frag): Don't use generic address
8087         spaces for function labels.
8088
8089 2018-01-19  Martin Liska  <mliska@suse.cz>
8090
8091         * predict.def (PRED_LOOP_EXIT): Change from 85 to 89.
8092         (PRED_LOOP_EXIT_WITH_RECURSION): Change from 72 to 78.
8093         (PRED_LOOP_EXTRA_EXIT): Change from 83 to 67.
8094         (PRED_OPCODE_POSITIVE): Change from 64 to 59.
8095         (PRED_TREE_OPCODE_POSITIVE): Change from 64 to 59.
8096         (PRED_CONST_RETURN): Change from 69 to 65.
8097         (PRED_NULL_RETURN): Change from 91 to 71.
8098         (PRED_LOOP_IV_COMPARE_GUESS): Change from 98 to 64.
8099         (PRED_LOOP_GUARD): Change from 66 to 73.
8100
8101 2018-01-19  Martin Liska  <mliska@suse.cz>
8102
8103         * predict.c (predict_insn_def): Add new assert.
8104         (struct branch_predictor): Change type to signed integer.
8105         (test_prediction_value_range): Amend test to cover
8106         PROB_UNINITIALIZED.
8107         * predict.def (PRED_LOOP_ITERATIONS): Use the new constant.
8108         (PRED_LOOP_ITERATIONS_GUESSED): Likewise.
8109         (PRED_LOOP_ITERATIONS_MAX): Likewise.
8110         (PRED_LOOP_IV_COMPARE): Likewise.
8111         * predict.h (PROB_UNINITIALIZED): Define new constant.
8112
8113 2018-01-19  Martin Liska  <mliska@suse.cz>
8114
8115         * predict.c (dump_prediction): Add new format for
8116         analyze_brprob.py script which is enabled with -details
8117         suboption.
8118         * profile-count.h (precise_p): New function.
8119
8120 2018-01-19  Richard Sandiford  <richard.sandiford@linaro.org>
8121
8122         PR tree-optimization/83922
8123         * tree-vect-loop.c (vect_verify_full_masking): Return false if
8124         there are no statements that need masking.
8125         (vect_active_double_reduction_p): New function.
8126         (vect_analyze_loop_operations): Use it when handling phis that
8127         are not in the loop header.
8128
8129 2018-01-19  Richard Sandiford  <richard.sandiford@linaro.org>
8130
8131         PR tree-optimization/83914
8132         * tree-vect-loop.c (vectorizable_induction): Don't convert
8133         init_expr or apply the peeling adjustment for inductions
8134         that are nested within the vectorized loop.
8135
8136 2018-01-19  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
8137
8138         * config/arm/thumb2.md (*thumb2_negsi2_short): Use RSB mnemonic
8139         instead of NEG.
8140
8141 2018-01-18  Jakub Jelinek  <jakub@redhat.com>
8142
8143         PR sanitizer/81715
8144         PR testsuite/83882
8145         * function.h (gimplify_parameters): Add gimple_seq * argument.
8146         * function.c: Include gimple.h and options.h.
8147         (gimplify_parameters): Add cleanup argument, add CLOBBER stmts
8148         for the added local temporaries if needed.
8149         * gimplify.c (gimplify_body): Adjust gimplify_parameters caller,
8150         if there are any parameter cleanups, wrap whole body into a
8151         try/finally with the cleanups.
8152
8153 2018-01-18  Wilco Dijkstra  <wdijkstr@arm.com>
8154
8155         PR target/82964
8156         * config/aarch64/aarch64.c (aarch64_legitimate_constant_p):
8157         Use GET_MODE_CLASS for scalar floating point.
8158
8159 2018-01-18  Jan Hubicka  <hubicka@ucw.cz>
8160
8161         PR ipa/82256
8162         patch by PaX Team
8163         * cgraphclones.c (cgraph_node::create_version_clone_with_body):
8164         Fix call of call_cgraph_insertion_hooks.
8165
8166 2018-01-18  Martin Sebor  <msebor@redhat.com>
8167
8168         * doc/invoke.texi (-Wclass-memaccess): Tweak text.
8169
8170 2018-01-18  Jan Hubicka  <hubicka@ucw.cz>
8171
8172         PR ipa/83619
8173         * cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Update edge
8174         frequencies.
8175
8176 2018-01-18  Boris Kolpackov  <boris@codesynthesis.com>
8177
8178         PR other/70268
8179         * common.opt: (-ffile-prefix-map): New option.
8180         * opts.c (common_handle_option): Defer it.
8181         * opts-global.c (handle_common_deferred_options): Handle it.
8182         * debug.h (remap_debug_filename, add_debug_prefix_map): Move to...
8183         * file-prefix-map.h: New file.
8184         (remap_debug_filename, add_debug_prefix_map): ...here.
8185         (add_macro_prefix_map, add_file_prefix_map, remap_macro_filename): New.
8186         * final.c (debug_prefix_map, add_debug_prefix_map
8187         remap_debug_filename): Move to...
8188         * file-prefix-map.c: New file.
8189         (file_prefix_map, add_prefix_map, remap_filename) ...here and rename,
8190         generalize, get rid of alloca(), use strrchr() instead of strchr().
8191         (add_macro_prefix_map, add_debug_prefix_map, add_file_prefix_map):
8192         Implement in terms of add_prefix_map().
8193         (remap_macro_filename, remap_debug_filename): Implement in term of
8194         remap_filename().
8195         * Makefile.in (OBJS, PLUGIN_HEADERS): Add new files.
8196         * builtins.c (fold_builtin_FILE): Call remap_macro_filename().
8197         * dbxout.c: Include file-prefix-map.h.
8198         * varasm.c: Likewise.
8199         * vmsdbgout.c: Likewise.
8200         * xcoffout.c: Likewise.
8201         * dwarf2out.c: Likewise plus omit new options from DW_AT_producer.
8202         * doc/cppopts.texi (-fmacro-prefix-map): Document.
8203         * doc/invoke.texi (-ffile-prefix-map): Document.
8204         (-fdebug-prefix-map): Update description.
8205
8206 2018-01-18  Martin Liska  <mliska@suse.cz>
8207
8208         * config/i386/i386.c (indirect_thunk_name): Document that also
8209         lfence is emitted.
8210         (output_indirect_thunk): Document why both instructions
8211         (pause and lfence) are generated.
8212
8213 2018-01-18  Richard Biener  <rguenther@suse.de>
8214
8215         PR tree-optimization/83887
8216         * graphite-scop-detection.c
8217         (scop_detection::get_nearest_dom_with_single_entry): Remove.
8218         (scop_detection::get_nearest_pdom_with_single_exit): Likewise.
8219         (scop_detection::merge_sese): Re-implement with a flood-fill
8220         algorithm that properly finds a SESE region if it exists.
8221
8222 2018-01-18  Jakub Jelinek  <jakub@redhat.com>
8223
8224         PR c/61240
8225         * match.pd ((P + A) - P, P - (P + A), (P + A) - (P + B)): For
8226         pointer_diff optimizations use view_convert instead of convert.
8227
8228 2018-01-17  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
8229
8230         * config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
8231         Generate different code for -mno-speculate-indirect-jumps.
8232         (*call_value_indirect_nonlocal_sysv<mode>): Likewise.
8233         (*call_indirect_aix<mode>): Disable for
8234         -mno-speculate-indirect-jumps.
8235         (*call_indirect_aix<mode>_nospec): New define_insn.
8236         (*call_value_indirect_aix<mode>): Disable for
8237         -mno-speculate-indirect-jumps.
8238         (*call_value_indirect_aix<mode>_nospec): New define_insn.
8239         (*sibcall_nonlocal_sysv<mode>): Generate different code for
8240         -mno-speculate-indirect-jumps.
8241         (*sibcall_value_nonlocal_sysv<mode>): Likewise.
8242
8243 2018-01-17  Michael Meissner  <meissner@linux.vnet.ibm.com>
8244
8245         * config/rs6000/rs6000.c (rs6000_emit_move): If we load or store a
8246         long double type, set the flags for noting the default long double
8247         type, even if we don't pass or return a long double type.
8248
8249 2018-01-17  Jan Hubicka  <hubicka@ucw.cz>
8250
8251         PR ipa/83051
8252         * ipa-inline.c (flatten_function): Do not overwrite final inlining
8253         failure.
8254
8255 2018-01-17  Will Schmidt  <will_schmidt@vnet.ibm.com>
8256
8257         * config/rs6000/rs6000.c (rs6000_gimple_builtin): Add gimple folding
8258         support for merge[hl].
8259         (fold_mergehl_helper): New helper function.
8260         (tree-vector-builder.h): New #include for tree_vector_builder usage.
8261         * config/rs6000/altivec.md (altivec_vmrghw_direct): Add xxmrghw insn.
8262         (altivec_vmrglw_direct): Add xxmrglw insn.
8263
8264 2018-01-17  Andrew Waterman  <andrew@sifive.com>
8265
8266         * config/riscv/riscv.c (riscv_conditional_register_usage): If
8267         UNITS_PER_FP_ARG is 0, set call_used_regs to 1 for all FP regs.
8268
8269 2018-01-17  David Malcolm  <dmalcolm@redhat.com>
8270
8271         PR lto/83121
8272         * ipa-devirt.c (add_type_duplicate): When comparing memory layout,
8273         call the lto_location_cache before reading the
8274         DECL_SOURCE_LOCATION of the types.
8275
8276 2018-01-17  Wilco Dijkstra  <wdijkstr@arm.com>
8277             Richard Sandiford  <richard.sandiford@linaro.org>
8278
8279         * config/aarch64/aarch64.md (movti_aarch64): Use Uti constraint.
8280         * config/aarch64/aarch64.c (aarch64_mov128_immediate): New function.
8281         (aarch64_legitimate_constant_p): Just support CONST_DOUBLE
8282         SF/DF/TF mode to avoid creating illegal CONST_WIDE_INT immediates.
8283         * config/aarch64/aarch64-protos.h (aarch64_mov128_immediate):
8284         Add declaration.
8285         * config/aarch64/constraints.md (aarch64_movti_operand):
8286         Limit immediates.
8287         * config/aarch64/predicates.md (Uti): Add new constraint.
8288
8289 2018-01-17 Carl Love  <cel@us.ibm.com>
8290
8291         * config/rs6000/vsx.md (define_expand xl_len_r,
8292         define_expand stxvl, define_expand *stxvl): Add match_dup argument.
8293         (define_insn): Add, match_dup 1 argument to define_insn stxvll and
8294         lxvll.
8295         (define_expand, define_insn): Move the shift left from  the
8296         define_insn to the define_expand for lxvl and stxvl instructions.
8297         * config/rs6000/rs6000-builtin.def (BU_P9V_64BIT_VSX_2): Change LXVL
8298         and XL_LEN_R definitions to PURE.
8299
8300 2018-01-17  Uros Bizjak  <ubizjak@gmail.com>
8301
8302         * config/i386/i386.c (indirect_thunk_name): Declare regno
8303         as unsigned int.  Compare regno with INVALID_REGNUM.
8304         (output_indirect_thunk): Ditto.
8305         (output_indirect_thunk_function): Ditto.
8306         (ix86_code_end): Declare regno as unsigned int.  Use INVALID_REGNUM
8307         in the call to output_indirect_thunk_function.
8308
8309 2018-01-17  Richard Sandiford  <richard.sandiford@linaro.org>
8310
8311         PR middle-end/83884
8312         * expr.c (expand_expr_real_1): Use the size of GET_MODE (op0)
8313         rather than the size of inner_type to determine the stack slot size
8314         when handling VIEW_CONVERT_EXPRs on strict-alignment targets.
8315
8316 2018-01-16  Sebastian Peryt  <sebastian.peryt@intel.com>
8317
8318         PR target/83546
8319         * config/i386/i386.c (ix86_option_override_internal): Add PTA_RDRND
8320         to PTA_SILVERMONT.
8321
8322 2018-01-16  Michael Meissner  <meissner@linux.vnet.ibm.com>
8323
8324         * config.gcc (powerpc*-linux*-*): Add support for 64-bit little
8325         endian Linux systems to optionally enable multilibs for selecting
8326         the long double type if the user configured an explicit type.
8327         * config/rs6000/rs6000.h (TARGET_IEEEQUAD_MULTILIB): Indicate we
8328         have no long double multilibs if not defined.
8329         * config/rs6000/rs6000.c (rs6000_option_override_internal): Do not
8330         warn if the user used -mabi={ieee,ibm}longdouble and we built
8331         multilibs for long double.
8332         * config/rs6000/linux64.h (MULTILIB_DEFAULTS_IEEE): Define as the
8333         appropriate multilib option.
8334         (MULTILIB_DEFAULTS): Add MULTILIB_DEFAULTS_IEEE to the default
8335         multilib options.
8336         * config/rs6000/t-ldouble-linux64le-ibm: New configuration files
8337         for building long double multilibs.
8338         * config/rs6000/t-ldouble-linux64le-ieee: Likewise.
8339
8340 2018-01-16  John David Anglin  <danglin@gcc.gnu.org>
8341
8342         * config.gcc (hppa*-*-linux*): Change callee copies ABI to caller
8343         copies.
8344
8345         * config/pa.h (MALLOC_ABI_ALIGNMENT): Set 32-bit alignment default to
8346         64 bits.
8347         * config/pa/pa32-linux.h (MALLOC_ABI_ALIGNMENT): Set alignment to
8348         128 bits.
8349
8350         * config/pa/som.h (ASM_DECLARE_FUNCTION_NAME): Cleanup type and mode
8351         variables.
8352
8353         * config/pa/pa.c (pa_function_arg_size): Apply CEIL to GET_MODE_SIZE
8354         return value.
8355
8356 2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>
8357
8358         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): For an
8359         ADDR_EXPR, do not count the offset of a COMPONENT_REF twice.
8360
8361 2018-01-16  Kelvin Nilsen  <kelvin@gcc.gnu.org>
8362
8363         * config/rs6000/rs6000-p8swap.c (rs6000_gen_stvx): Generate
8364         different rtl trees depending on TARGET_64BIT.
8365         (rs6000_gen_lvx): Likewise.
8366
8367 2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>
8368
8369         * config/visium/visium.md (nop): Tweak comment.
8370         (hazard_nop): Likewise.
8371
8372 2018-01-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
8373
8374         * config/rs6000/rs6000.c (rs6000_opt_vars): Add entry for
8375         -mspeculate-indirect-jumps.
8376         * config/rs6000/rs6000.md (*call_indirect_elfv2<mode>): Disable
8377         for -mno-speculate-indirect-jumps.
8378         (*call_indirect_elfv2<mode>_nospec): New define_insn.
8379         (*call_value_indirect_elfv2<mode>): Disable for
8380         -mno-speculate-indirect-jumps.
8381         (*call_value_indirect_elfv2<mode>_nospec): New define_insn.
8382         (indirect_jump): Emit different RTL for
8383         -mno-speculate-indirect-jumps.
8384         (*indirect_jump<mode>): Disable for
8385         -mno-speculate-indirect-jumps.
8386         (*indirect_jump<mode>_nospec): New define_insn.
8387         (tablejump): Emit different RTL for
8388         -mno-speculate-indirect-jumps.
8389         (tablejumpsi): Disable for -mno-speculate-indirect-jumps.
8390         (tablejumpsi_nospec): New define_expand.
8391         (tablejumpdi): Disable for -mno-speculate-indirect-jumps.
8392         (tablejumpdi_nospec): New define_expand.
8393         (*tablejump<mode>_internal1): Disable for
8394         -mno-speculate-indirect-jumps.
8395         (*tablejump<mode>_internal1_nospec): New define_insn.
8396         * config/rs6000/rs6000.opt (mspeculate-indirect-jumps): New
8397         option.
8398
8399 2018-01-16  Artyom Skrobov tyomitch@gmail.com
8400
8401         * caller-save.c (insert_save): Drop unnecessary parameter.  All
8402         callers updated.
8403
8404 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
8405             Richard Biener  <rguenth@suse.de>
8406
8407         PR libgomp/83590
8408         * gimplify.c (gimplify_one_sizepos): For is_gimple_constant (expr)
8409         return early, inline manually is_gimple_sizepos.  Make sure if we
8410         call gimplify_expr we don't end up with a gimple constant.
8411         * tree.c (variably_modified_type_p): Don't return true for
8412         is_gimple_constant (_t).  Inline manually is_gimple_sizepos.
8413         * gimplify.h (is_gimple_sizepos): Remove.
8414
8415 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
8416
8417         PR tree-optimization/83857
8418         * tree-vect-loop.c (vect_analyze_loop_operations): Don't call
8419         vectorizable_live_operation for pure SLP statements.
8420         (vectorizable_live_operation): Handle PHIs.
8421
8422 2018-01-16  Richard Biener  <rguenther@suse.de>
8423
8424         PR tree-optimization/83867
8425         * tree-vect-stmts.c (vect_transform_stmt): Precompute
8426         nested_in_vect_loop_p since the scalar stmt may get invalidated.
8427
8428 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
8429
8430         PR c/83844
8431         * stor-layout.c (handle_warn_if_not_align): Use byte_position and
8432         multiple_of_p instead of unchecked tree_to_uhwi and UHWI check.
8433         If off is not INTEGER_CST, issue a may not be aligned warning
8434         rather than isn't aligned.  Use isn%'t rather than isn't.
8435         * fold-const.c (multiple_of_p) <case BIT_AND_EXPR>: Don't fall through
8436         into MULT_EXPR.
8437         <case MULT_EXPR>: Improve the case when bottom and one of the
8438         MULT_EXPR operands are INTEGER_CSTs and bottom is multiple of that
8439         operand, in that case check if the other operand is multiple of
8440         bottom divided by the INTEGER_CST operand.
8441
8442 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
8443
8444         PR target/83858
8445         * config/pa/pa.h (FUNCTION_ARG_SIZE): Delete.
8446         * config/pa/pa-protos.h (pa_function_arg_size): Declare.
8447         * config/pa/som.h (ASM_DECLARE_FUNCTION_NAME): Use
8448         pa_function_arg_size instead of FUNCTION_ARG_SIZE.
8449         * config/pa/pa.c (pa_function_arg_advance): Likewise.
8450         (pa_function_arg, pa_arg_partial_bytes): Likewise.
8451         (pa_function_arg_size): New function.
8452
8453 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
8454
8455         * fold-const.c (fold_ternary_loc): Construct the vec_perm_indices
8456         in a separate statement.
8457
8458 2018-01-16  Richard Sandiford  <richard.sandiford@linaro.org>
8459
8460         PR tree-optimization/83847
8461         * tree-vect-data-refs.c (vect_analyze_data_ref_accesses): Don't
8462         group gathers and scatters.
8463
8464 2018-01-16  Jakub Jelinek  <jakub@redhat.com>
8465
8466         PR rtl-optimization/86620
8467         * params.def (max-sched-ready-insns): Bump minimum value to 1.
8468
8469         PR rtl-optimization/83213
8470         * recog.c (peep2_attempt): Copy over CROSSING_JUMP_P from peepinsn
8471         to last if both are JUMP_INSNs.
8472
8473         PR tree-optimization/83843
8474         * gimple-ssa-store-merging.c
8475         (imm_store_chain_info::output_merged_store): Handle bit_not_p on
8476         store_immediate_info for bswap/nop orig_stores.
8477
8478 2018-01-15  Andrew Waterman  <andrew@sifive.com>
8479
8480         * config/riscv/riscv.c (riscv_rtx_costs) <MULT>: Increase cost if
8481         !TARGET_MUL.
8482         <UDIV>: Increase cost if !TARGET_DIV.
8483
8484 2018-01-15  Segher Boessenkool  <segher@kernel.crashing.org>
8485
8486         * config/rs6000/rs6000.md (define_attr "type"): Remove delayed_cr.
8487         (define_attr "cr_logical_3op"): New.
8488         (cceq_ior_compare): Adjust.
8489         (cceq_ior_compare_complement): Adjust.
8490         (*cceq_rev_compare): Adjust.
8491         * config/rs6000/rs6000.c (rs6000_adjust_cost): Adjust.
8492         (is_cracked_insn): Adjust.
8493         (insn_must_be_first_in_group): Adjust.
8494         * config/rs6000/40x.md: Adjust.
8495         * config/rs6000/440.md: Adjust.
8496         * config/rs6000/476.md: Adjust.
8497         * config/rs6000/601.md: Adjust.
8498         * config/rs6000/603.md: Adjust.
8499         * config/rs6000/6xx.md: Adjust.
8500         * config/rs6000/7450.md: Adjust.
8501         * config/rs6000/7xx.md: Adjust.
8502         * config/rs6000/8540.md: Adjust.
8503         * config/rs6000/cell.md: Adjust.
8504         * config/rs6000/e300c2c3.md: Adjust.
8505         * config/rs6000/e500mc.md: Adjust.
8506         * config/rs6000/e500mc64.md: Adjust.
8507         * config/rs6000/e5500.md: Adjust.
8508         * config/rs6000/e6500.md: Adjust.
8509         * config/rs6000/mpc.md: Adjust.
8510         * config/rs6000/power4.md: Adjust.
8511         * config/rs6000/power5.md: Adjust.
8512         * config/rs6000/power6.md: Adjust.
8513         * config/rs6000/power7.md: Adjust.
8514         * config/rs6000/power8.md: Adjust.
8515         * config/rs6000/power9.md: Adjust.
8516         * config/rs6000/rs64.md: Adjust.
8517         * config/rs6000/titan.md: Adjust.
8518
8519 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
8520
8521         * config/i386/predicates.md (indirect_branch_operand): Rewrite
8522         ix86_indirect_branch_register logic.
8523
8524 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
8525
8526         * config/i386/constraints.md (Bs): Update
8527         ix86_indirect_branch_register check.  Don't check
8528         ix86_indirect_branch_register with GOT_memory_operand.
8529         (Bw): Likewise.
8530         * config/i386/predicates.md (GOT_memory_operand): Don't check
8531         ix86_indirect_branch_register here.
8532         (GOT32_symbol_operand): Likewise.
8533
8534 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
8535
8536         * config/i386/predicates.md (constant_call_address_operand):
8537         Rewrite ix86_indirect_branch_register logic.
8538         (sibcall_insn_operand): Likewise.
8539
8540 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
8541
8542         * config/i386/constraints.md (Bs): Replace
8543         ix86_indirect_branch_thunk_register with
8544         ix86_indirect_branch_register.
8545         (Bw): Likewise.
8546         * config/i386/i386.md (indirect_jump): Likewise.
8547         (tablejump): Likewise.
8548         (*sibcall_memory): Likewise.
8549         (*sibcall_value_memory): Likewise.
8550         Peepholes of indirect call and jump via memory: Likewise.
8551         * config/i386/i386.opt: Likewise.
8552         * config/i386/predicates.md (indirect_branch_operand): Likewise.
8553         (GOT_memory_operand): Likewise.
8554         (call_insn_operand): Likewise.
8555         (sibcall_insn_operand): Likewise.
8556         (GOT32_symbol_operand): Likewise.
8557
8558 2018-01-15  Jakub Jelinek  <jakub@redhat.com>
8559
8560         PR middle-end/83837
8561         * omp-expand.c (expand_omp_atomic_pipeline): Use loaded_val
8562         type rather than type addr's type points to.
8563         (expand_omp_atomic_mutex): Likewise.
8564         (expand_omp_atomic): Likewise.
8565
8566 2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
8567
8568         PR target/83839
8569         * config/i386/i386.c (output_indirect_thunk_function): Use
8570         ASM_OUTPUT_LABEL, instead of ASM_OUTPUT_DEF, for TARGET_MACHO
8571         for  __x86_return_thunk.
8572
8573 2018-01-15  Richard Biener  <rguenther@suse.de>
8574
8575         PR middle-end/83850
8576         * expmed.c (extract_bit_field_1): Fix typo.
8577
8578 2018-01-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
8579
8580         PR target/83687
8581         * config/arm/iterators.md (VF): New mode iterator.
8582         * config/arm/neon.md (neon_vabd<mode>_2): Use the above.
8583         Remove integer-related logic from pattern.
8584         (neon_vabd<mode>_3): Likewise.
8585
8586 2018-01-15  Jakub Jelinek  <jakub@redhat.com>
8587
8588         PR middle-end/82694
8589         * common.opt (fstrict-overflow): No longer an alias.
8590         (fwrapv-pointer): New option.
8591         * tree.h (TYPE_OVERFLOW_WRAPS, TYPE_OVERFLOW_UNDEFINED): Define
8592         also for pointer types based on flag_wrapv_pointer.
8593         * opts.c (common_handle_option) <case OPT_fstrict_overflow>: Set
8594         opts->x_flag_wrap[pv] to !value, clear opts->x_flag_trapv if
8595         opts->x_flag_wrapv got set.
8596         * fold-const.c (fold_comparison, fold_binary_loc): Revert 2017-08-01
8597         changes, just use TYPE_OVERFLOW_UNDEFINED on pointer type instead of
8598         POINTER_TYPE_OVERFLOW_UNDEFINED.
8599         * match.pd: Likewise in address comparison pattern.
8600         * doc/invoke.texi: Document -fwrapv and -fstrict-overflow.
8601
8602 2018-01-15  Richard Biener  <rguenther@suse.de>
8603
8604         PR lto/83804
8605         * tree.c (free_lang_data_in_type): Always unlink TYPE_DECLs
8606         from TYPE_FIELDS.  Free TYPE_BINFO if not used by devirtualization.
8607         Reset type names to their identifier if their TYPE_DECL doesn't
8608         have linkage (and thus is used for ODR and devirt).
8609         (save_debug_info_for_decl): Remove.
8610         (save_debug_info_for_type): Likewise.
8611         (add_tree_to_fld_list): Adjust.
8612         * tree-pretty-print.c (dump_generic_node): Make dumping of
8613         type names more robust.
8614
8615 2018-01-15  Richard Biener  <rguenther@suse.de>
8616
8617         * BASE-VER: Bump to 8.0.1.
8618
8619 2018-01-14  Martin Sebor  <msebor@redhat.com>
8620
8621         PR other/83508
8622         * builtins.c (check_access): Avoid warning when the no-warning bit
8623         is set.
8624
8625 2018-01-14  Cory Fields  <cory-nospam-@coryfields.com>
8626
8627         * tree-ssa-loop-im.c (sort_bbs_in_loop_postorder_cmp): Stabilize sort.
8628         * ira-color (allocno_hard_regs_compare): Likewise.
8629
8630 2018-01-14  Nathan Rossi  <nathan@nathanrossi.com>
8631
8632         PR target/83013
8633         * config/microblaze/microblaze.c (microblaze_asm_output_ident):
8634         Use .pushsection/.popsection.
8635
8636 2018-01-14  Martin Sebor  <msebor@redhat.com>
8637
8638         PR c++/81327
8639         * doc/invoke.texi (-Wlass-memaccess): Document suppression by casting.
8640
8641 2018-01-14  Jakub Jelinek  <jakub@redhat.com>
8642
8643         * config.gcc (i[34567]86-*-*): Remove one duplicate gfniintrin.h
8644         entry from extra_headers.
8645         (x86_64-*-*): Remove two duplicate gfniintrin.h entries from
8646         extra_headers, make the list bitwise identical to the i?86-*-* one.
8647
8648 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
8649
8650         * config/i386/i386.c (ix86_set_indirect_branch_type): Disallow
8651         -mcmodel=large with -mindirect-branch=thunk,
8652         -mindirect-branch=thunk-extern, -mfunction-return=thunk and
8653         -mfunction-return=thunk-extern.
8654         * doc/invoke.texi: Document -mcmodel=large is incompatible with
8655         -mindirect-branch=thunk, -mindirect-branch=thunk-extern,
8656         -mfunction-return=thunk and -mfunction-return=thunk-extern.
8657
8658 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
8659
8660         * config/i386/i386.c (print_reg): Print the name of the full
8661         integer register without '%'.
8662         (ix86_print_operand): Handle 'V'.
8663          * doc/extend.texi: Document 'V' modifier.
8664
8665 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
8666
8667         * config/i386/constraints.md (Bs): Disallow memory operand for
8668         -mindirect-branch-register.
8669         (Bw): Likewise.
8670         * config/i386/predicates.md (indirect_branch_operand): Likewise.
8671         (GOT_memory_operand): Likewise.
8672         (call_insn_operand): Likewise.
8673         (sibcall_insn_operand): Likewise.
8674         (GOT32_symbol_operand): Likewise.
8675         * config/i386/i386.md (indirect_jump): Call convert_memory_address
8676         for -mindirect-branch-register.
8677         (tablejump): Likewise.
8678         (*sibcall_memory): Likewise.
8679         (*sibcall_value_memory): Likewise.
8680         Disallow peepholes of indirect call and jump via memory for
8681         -mindirect-branch-register.
8682         (*call_pop): Replace m with Bw.
8683         (*call_value_pop): Likewise.
8684         (*sibcall_pop_memory): Replace m with Bs.
8685         * config/i386/i386.opt (mindirect-branch-register): New option.
8686         * doc/invoke.texi: Document -mindirect-branch-register option.
8687
8688 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
8689
8690         * config/i386/i386-protos.h (ix86_output_function_return): New.
8691         * config/i386/i386.c (ix86_set_indirect_branch_type): Also
8692         set function_return_type.
8693         (indirect_thunk_name): Add ret_p to indicate thunk for function
8694         return.
8695         (output_indirect_thunk_function): Pass false to
8696         indirect_thunk_name.
8697         (ix86_output_indirect_branch_via_reg): Likewise.
8698         (ix86_output_indirect_branch_via_push): Likewise.
8699         (output_indirect_thunk_function): Create alias for function
8700         return thunk if regno < 0.
8701         (ix86_output_function_return): New function.
8702         (ix86_handle_fndecl_attribute): Handle function_return.
8703         (ix86_attribute_table): Add function_return.
8704         * config/i386/i386.h (machine_function): Add
8705         function_return_type.
8706         * config/i386/i386.md (simple_return_internal): Use
8707         ix86_output_function_return.
8708         (simple_return_internal_long): Likewise.
8709         * config/i386/i386.opt (mfunction-return=): New option.
8710         (indirect_branch): Mention -mfunction-return=.
8711         * doc/extend.texi: Document function_return function attribute.
8712         * doc/invoke.texi: Document -mfunction-return= option.
8713
8714 2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
8715
8716         * config/i386/i386-opts.h (indirect_branch): New.
8717         * config/i386/i386-protos.h (ix86_output_indirect_jmp): Likewise.
8718         * config/i386/i386.c (ix86_using_red_zone): Disallow red-zone
8719         with local indirect jump when converting indirect call and jump.
8720         (ix86_set_indirect_branch_type): New.
8721         (ix86_set_current_function): Call ix86_set_indirect_branch_type.
8722         (indirectlabelno): New.
8723         (indirect_thunk_needed): Likewise.
8724         (indirect_thunk_bnd_needed): Likewise.
8725         (indirect_thunks_used): Likewise.
8726         (indirect_thunks_bnd_used): Likewise.
8727         (INDIRECT_LABEL): Likewise.
8728         (indirect_thunk_name): Likewise.
8729         (output_indirect_thunk): Likewise.
8730         (output_indirect_thunk_function): Likewise.
8731         (ix86_output_indirect_branch_via_reg): Likewise.
8732         (ix86_output_indirect_branch_via_push): Likewise.
8733         (ix86_output_indirect_branch): Likewise.
8734         (ix86_output_indirect_jmp): Likewise.
8735         (ix86_code_end): Call output_indirect_thunk_function if needed.
8736         (ix86_output_call_insn): Call ix86_output_indirect_branch if
8737         needed.
8738         (ix86_handle_fndecl_attribute): Handle indirect_branch.
8739         (ix86_attribute_table): Add indirect_branch.
8740         * config/i386/i386.h (machine_function): Add indirect_branch_type
8741         and has_local_indirect_jump.
8742         * config/i386/i386.md (indirect_jump): Set has_local_indirect_jump
8743         to true.
8744         (tablejump): Likewise.
8745         (*indirect_jump): Use ix86_output_indirect_jmp.
8746         (*tablejump_1): Likewise.
8747         (simple_return_indirect_internal): Likewise.
8748         * config/i386/i386.opt (mindirect-branch=): New option.
8749         (indirect_branch): New.
8750         (keep): Likewise.
8751         (thunk): Likewise.
8752         (thunk-inline): Likewise.
8753         (thunk-extern): Likewise.
8754         * doc/extend.texi: Document indirect_branch function attribute.
8755         * doc/invoke.texi: Document -mindirect-branch= option.
8756
8757 2018-01-14  Jan Hubicka  <hubicka@ucw.cz>
8758
8759         PR ipa/83051
8760         * ipa-inline.c (edge_badness): Tolerate roundoff errors.
8761
8762 2018-01-14  Richard Sandiford  <richard.sandiford@linaro.org>
8763
8764         * ipa-inline.c (want_inline_small_function_p): Return false if
8765         inlining has already failed with CIF_FINAL_ERROR.
8766         (update_caller_keys): Call want_inline_small_function_p before
8767         can_inline_edge_p.
8768         (update_callee_keys): Likewise.
8769
8770 2018-01-10  Kelvin Nilsen  <kelvin@gcc.gnu.org>
8771
8772         * config/rs6000/rs6000-p8swap.c (rs6000_sum_of_two_registers_p):
8773         New function.
8774         (rs6000_quadword_masked_address_p): Likewise.
8775         (quad_aligned_load_p): Likewise.
8776         (quad_aligned_store_p): Likewise.
8777         (const_load_sequence_p): Add comment to describe the outer-most loop.
8778         (mimic_memory_attributes_and_flags): New function.
8779         (rs6000_gen_stvx): Likewise.
8780         (replace_swapped_aligned_store): Likewise.
8781         (rs6000_gen_lvx): Likewise.
8782         (replace_swapped_aligned_load): Likewise.
8783         (replace_swapped_load_constant): Capitalize argument name in
8784         comment describing this function.
8785         (rs6000_analyze_swaps): Add a third pass to search for vector loads
8786         and stores that access quad-word aligned addresses and replace
8787         with stvx or lvx instructions when appropriate.
8788         * config/rs6000/rs6000-protos.h (rs6000_sum_of_two_registers_p):
8789         New function prototype.
8790         (rs6000_quadword_masked_address_p): Likewise.
8791         (rs6000_gen_lvx): Likewise.
8792         (rs6000_gen_stvx): Likewise.
8793         * config/rs6000/vsx.md (*vsx_le_perm_load_<mode>): For modes
8794         VSX_D (V2DF, V2DI), modify this split to select lvx instruction
8795         when memory address is aligned.
8796         (*vsx_le_perm_load_<mode>): For modes VSX_W (V4SF, V4SI), modify
8797         this split to select lvx instruction when memory address is aligned.
8798         (*vsx_le_perm_load_v8hi): Modify this split to select lvx
8799         instruction when memory address is aligned.
8800         (*vsx_le_perm_load_v16qi): Likewise.
8801         (four unnamed splitters): Modify to select the stvx instruction
8802         when memory is aligned.
8803
8804 2018-01-13  Jan Hubicka  <hubicka@ucw.cz>
8805
8806         * predict.c (determine_unlikely_bbs): Handle correctly BBs
8807         which appears in the queue multiple times.
8808
8809 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8810             Alan Hayward  <alan.hayward@arm.com>
8811             David Sherwood  <david.sherwood@arm.com>
8812
8813         * tree-vectorizer.h (vec_lower_bound): New structure.
8814         (_loop_vec_info): Add check_nonzero and lower_bounds.
8815         (LOOP_VINFO_CHECK_NONZERO): New macro.
8816         (LOOP_VINFO_LOWER_BOUNDS): Likewise.
8817         (LOOP_REQUIRES_VERSIONING_FOR_ALIAS): Check lower_bounds too.
8818         * tree-data-ref.h (dr_with_seg_len): Add access_size and align
8819         fields.  Make seg_len the distance travelled, not including the
8820         access size.
8821         (dr_direction_indicator): Declare.
8822         (dr_zero_step_indicator): Likewise.
8823         (dr_known_forward_stride_p): Likewise.
8824         * tree-data-ref.c: Include stringpool.h, tree-vrp.h and
8825         tree-ssanames.h.
8826         (runtime_alias_check_p): Allow runtime alias checks with
8827         variable strides.
8828         (operator ==): Compare access_size and align.
8829         (prune_runtime_alias_test_list): Rework for new distinction between
8830         the access_size and seg_len.
8831         (create_intersect_range_checks_index): Likewise.  Cope with polynomial
8832         segment lengths.
8833         (get_segment_min_max): New function.
8834         (create_intersect_range_checks): Use it.
8835         (dr_step_indicator): New function.
8836         (dr_direction_indicator): Likewise.
8837         (dr_zero_step_indicator): Likewise.
8838         (dr_known_forward_stride_p): Likewise.
8839         * tree-loop-distribution.c (data_ref_segment_size): Return
8840         DR_STEP * (niters - 1).
8841         (compute_alias_check_pairs): Update call to the dr_with_seg_len
8842         constructor.
8843         * tree-vect-data-refs.c (vect_check_nonzero_value): New function.
8844         (vect_preserves_scalar_order_p): New function, split out from...
8845         (vect_analyze_data_ref_dependence): ...here.  Check for zero steps.
8846         (vect_vfa_segment_size): Return DR_STEP * (length_factor - 1).
8847         (vect_vfa_access_size): New function.
8848         (vect_vfa_align): Likewise.
8849         (vect_compile_time_alias): Take access_size_a and access_b arguments.
8850         (dump_lower_bound): New function.
8851         (vect_check_lower_bound): Likewise.
8852         (vect_small_gap_p): Likewise.
8853         (vectorizable_with_step_bound_p): Likewise.
8854         (vect_prune_runtime_alias_test_list): Ignore cross-iteration
8855         depencies if the vectorization factor is 1.  Convert the checks
8856         for nonzero steps into checks on the bounds of DR_STEP.  Try using
8857         a bunds check for variable steps if the minimum required step is
8858         relatively small. Update calls to the dr_with_seg_len
8859         constructor and to vect_compile_time_alias.
8860         * tree-vect-loop-manip.c (vect_create_cond_for_lower_bounds): New
8861         function.
8862         (vect_loop_versioning): Call it.
8863         * tree-vect-loop.c (vect_analyze_loop_2): Clear LOOP_VINFO_LOWER_BOUNDS
8864         when retrying.
8865         (vect_estimate_min_profitable_iters): Account for any bounds checks.
8866
8867 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8868             Alan Hayward  <alan.hayward@arm.com>
8869             David Sherwood  <david.sherwood@arm.com>
8870
8871         * doc/sourcebuild.texi (vect_scatter_store): Document.
8872         * optabs.def (scatter_store_optab, mask_scatter_store_optab): New
8873         optabs.
8874         * doc/md.texi (scatter_store@var{m}, mask_scatter_store@var{m}):
8875         Document.
8876         * genopinit.c (main): Add supports_vec_scatter_store and
8877         supports_vec_scatter_store_cached to target_optabs.
8878         * gimple.h (gimple_expr_type): Handle IFN_SCATTER_STORE and
8879         IFN_MASK_SCATTER_STORE.
8880         * internal-fn.def (SCATTER_STORE, MASK_SCATTER_STORE): New internal
8881         functions.
8882         * internal-fn.h (internal_store_fn_p): Declare.
8883         (internal_fn_stored_value_index): Likewise.
8884         * internal-fn.c (scatter_store_direct): New macro.
8885         (expand_scatter_store_optab_fn): New function.
8886         (direct_scatter_store_optab_supported_p): New macro.
8887         (internal_store_fn_p): New function.
8888         (internal_gather_scatter_fn_p): Handle IFN_SCATTER_STORE and
8889         IFN_MASK_SCATTER_STORE.
8890         (internal_fn_mask_index): Likewise.
8891         (internal_fn_stored_value_index): New function.
8892         (internal_gather_scatter_fn_supported_p): Adjust operand numbers
8893         for scatter stores.
8894         * optabs-query.h (supports_vec_scatter_store_p): Declare.
8895         * optabs-query.c (supports_vec_scatter_store_p): New function.
8896         * tree-vectorizer.h (vect_get_store_rhs): Declare.
8897         * tree-vect-data-refs.c (vect_analyze_data_ref_access): Return
8898         true for scatter stores.
8899         (vect_gather_scatter_fn_p): Handle scatter stores too.
8900         (vect_check_gather_scatter): Consider using scatter stores if
8901         supports_vec_scatter_store_p.
8902         * tree-vect-patterns.c (vect_try_gather_scatter_pattern): Handle
8903         scatter stores too.
8904         * tree-vect-stmts.c (exist_non_indexing_operands_for_use_p): Use
8905         internal_fn_stored_value_index.
8906         (check_load_store_masking): Handle scatter stores too.
8907         (vect_get_store_rhs): Make public.
8908         (vectorizable_call): Use internal_store_fn_p.
8909         (vectorizable_store): Handle scatter store internal functions.
8910         (vect_transform_stmt): Compare GROUP_STORE_COUNT with GROUP_SIZE
8911         when deciding whether the end of the group has been reached.
8912         * config/aarch64/aarch64.md (UNSPEC_ST1_SCATTER): New unspec.
8913         * config/aarch64/aarch64-sve.md (scatter_store<mode>): New expander.
8914         (mask_scatter_store<mode>): New insns.
8915
8916 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8917             Alan Hayward  <alan.hayward@arm.com>
8918             David Sherwood  <david.sherwood@arm.com>
8919
8920         * tree-vectorizer.h (vect_gather_scatter_fn_p): Declare.
8921         * tree-vect-data-refs.c (vect_gather_scatter_fn_p): Make public.
8922         * tree-vect-stmts.c (vect_truncate_gather_scatter_offset): New
8923         function.
8924         (vect_use_strided_gather_scatters_p): Take a masked_p argument.
8925         Use vect_truncate_gather_scatter_offset if we can't treat the
8926         operation as a normal gather load or scatter store.
8927         (get_group_load_store_type): Take the gather_scatter_info
8928         as argument.  Try using a gather load or scatter store for
8929         single-element groups.
8930         (get_load_store_type): Update calls to get_group_load_store_type
8931         and vect_use_strided_gather_scatters_p.
8932
8933 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8934             Alan Hayward  <alan.hayward@arm.com>
8935             David Sherwood  <david.sherwood@arm.com>
8936
8937         * tree-vectorizer.h (vect_create_data_ref_ptr): Take an extra
8938         optional tree argument.
8939         * tree-vect-data-refs.c (vect_check_gather_scatter): Check for
8940         null target hooks.
8941         (vect_create_data_ref_ptr): Take the iv_step as an optional argument,
8942         but continue to use the current value as a fallback.
8943         (bump_vector_ptr): Use operand_equal_p rather than tree_int_cst_compare
8944         to compare the updates.
8945         * tree-vect-stmts.c (vect_use_strided_gather_scatters_p): New function.
8946         (get_load_store_type): Use it when handling a strided access.
8947         (vect_get_strided_load_store_ops): New function.
8948         (vect_get_data_ptr_increment): Likewise.
8949         (vectorizable_load): Handle strided gather loads.  Always pass
8950         a step to vect_create_data_ref_ptr and bump_vector_ptr.
8951
8952 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
8953             Alan Hayward  <alan.hayward@arm.com>
8954             David Sherwood  <david.sherwood@arm.com>
8955
8956         * doc/md.texi (gather_load@var{m}): Document.
8957         (mask_gather_load@var{m}): Likewise.
8958         * genopinit.c (main): Add supports_vec_gather_load and
8959         supports_vec_gather_load_cached to target_optabs.
8960         * optabs-tree.c (init_tree_optimization_optabs): Use
8961         ggc_cleared_alloc to allocate target_optabs.
8962         * optabs.def (gather_load_optab, mask_gather_laod_optab): New optabs.
8963         * internal-fn.def (GATHER_LOAD, MASK_GATHER_LOAD): New internal
8964         functions.
8965         * internal-fn.h (internal_load_fn_p): Declare.
8966         (internal_gather_scatter_fn_p): Likewise.
8967         (internal_fn_mask_index): Likewise.
8968         (internal_gather_scatter_fn_supported_p): Likewise.
8969         * internal-fn.c (gather_load_direct): New macro.
8970         (expand_gather_load_optab_fn): New function.
8971         (direct_gather_load_optab_supported_p): New macro.
8972         (direct_internal_fn_optab): New function.
8973         (internal_load_fn_p): Likewise.
8974         (internal_gather_scatter_fn_p): Likewise.
8975         (internal_fn_mask_index): Likewise.
8976         (internal_gather_scatter_fn_supported_p): Likewise.
8977         * optabs-query.c (supports_at_least_one_mode_p): New function.
8978         (supports_vec_gather_load_p): Likewise.
8979         * optabs-query.h (supports_vec_gather_load_p): Declare.
8980         * tree-vectorizer.h (gather_scatter_info): Add ifn, element_type
8981         and memory_type field.
8982         (NUM_PATTERNS): Bump to 15.
8983         * tree-vect-data-refs.c: Include internal-fn.h.
8984         (vect_gather_scatter_fn_p): New function.
8985         (vect_describe_gather_scatter_call): Likewise.
8986         (vect_check_gather_scatter): Try using internal functions for
8987         gather loads.  Recognize existing calls to a gather load function.
8988         (vect_analyze_data_refs): Consider using gather loads if
8989         supports_vec_gather_load_p.
8990         * tree-vect-patterns.c (vect_get_load_store_mask): New function.
8991         (vect_get_gather_scatter_offset_type): Likewise.
8992         (vect_convert_mask_for_vectype): Likewise.
8993         (vect_add_conversion_to_patterm): Likewise.
8994         (vect_try_gather_scatter_pattern): Likewise.
8995         (vect_recog_gather_scatter_pattern): New pattern recognizer.
8996         (vect_vect_recog_func_ptrs): Add it.
8997         * tree-vect-stmts.c (exist_non_indexing_operands_for_use_p): Use
8998         internal_fn_mask_index and internal_gather_scatter_fn_p.
8999         (check_load_store_masking): Take the gather_scatter_info as an
9000         argument and handle gather loads.
9001         (vect_get_gather_scatter_ops): New function.
9002         (vectorizable_call): Check internal_load_fn_p.
9003         (vectorizable_load): Likewise.  Handle gather load internal
9004         functions.
9005         (vectorizable_store): Update call to check_load_store_masking.
9006         * config/aarch64/aarch64.md (UNSPEC_LD1_GATHER): New unspec.
9007         * config/aarch64/iterators.md (SVE_S, SVE_D): New mode iterators.
9008         * config/aarch64/predicates.md (aarch64_gather_scale_operand_w)
9009         (aarch64_gather_scale_operand_d): New predicates.
9010         * config/aarch64/aarch64-sve.md (gather_load<mode>): New expander.
9011         (mask_gather_load<mode>): New insns.
9012
9013 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9014             Alan Hayward  <alan.hayward@arm.com>
9015             David Sherwood  <david.sherwood@arm.com>
9016
9017         * optabs.def (fold_left_plus_optab): New optab.
9018         * doc/md.texi (fold_left_plus_@var{m}): Document.
9019         * internal-fn.def (IFN_FOLD_LEFT_PLUS): New internal function.
9020         * internal-fn.c (fold_left_direct): Define.
9021         (expand_fold_left_optab_fn): Likewise.
9022         (direct_fold_left_optab_supported_p): Likewise.
9023         * fold-const-call.c (fold_const_fold_left): New function.
9024         (fold_const_call): Use it to fold CFN_FOLD_LEFT_PLUS.
9025         * tree-parloops.c (valid_reduction_p): New function.
9026         (gather_scalar_reductions): Use it.
9027         * tree-vectorizer.h (FOLD_LEFT_REDUCTION): New vect_reduction_type.
9028         (vect_finish_replace_stmt): Declare.
9029         * tree-vect-loop.c (fold_left_reduction_fn): New function.
9030         (needs_fold_left_reduction_p): New function, split out from...
9031         (vect_is_simple_reduction): ...here.  Accept reductions that
9032         forbid reassociation, but give them type FOLD_LEFT_REDUCTION.
9033         (vect_force_simple_reduction): Also store the reduction type in
9034         the assignment's STMT_VINFO_REDUC_TYPE.
9035         (vect_model_reduction_cost): Handle FOLD_LEFT_REDUCTION.
9036         (merge_with_identity): New function.
9037         (vect_expand_fold_left): Likewise.
9038         (vectorize_fold_left_reduction): Likewise.
9039         (vectorizable_reduction): Handle FOLD_LEFT_REDUCTION.  Leave the
9040         scalar phi in place for it.  Check for target support and reject
9041         cases that would reassociate the operation.  Defer the transform
9042         phase to vectorize_fold_left_reduction.
9043         * config/aarch64/aarch64.md (UNSPEC_FADDA): New unspec.
9044         * config/aarch64/aarch64-sve.md (fold_left_plus_<mode>): New expander.
9045         (*fold_left_plus_<mode>, *pred_fold_left_plus_<mode>): New insns.
9046
9047 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9048
9049         * tree-if-conv.c (predicate_mem_writes): Remove redundant
9050         call to ifc_temp_var.
9051
9052 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9053             Alan Hayward  <alan.hayward@arm.com>
9054             David Sherwood  <david.sherwood@arm.com>
9055
9056         * target.def (legitimize_address_displacement): Take the original
9057         offset as a poly_int.
9058         * targhooks.h (default_legitimize_address_displacement): Update
9059         accordingly.
9060         * targhooks.c (default_legitimize_address_displacement): Likewise.
9061         * doc/tm.texi: Regenerate.
9062         * lra-constraints.c (base_plus_disp_to_reg): Take the displacement
9063         as an argument, moving assert of ad->disp == ad->disp_term to...
9064         (process_address_1): ...here.  Update calls to base_plus_disp_to_reg.
9065         Try calling targetm.legitimize_address_displacement before expanding
9066         the address rather than afterwards, and adjust for the new interface.
9067         * config/aarch64/aarch64.c (aarch64_legitimize_address_displacement):
9068         Match the new hook interface.  Handle SVE addresses.
9069         * config/sh/sh.c (sh_legitimize_address_displacement): Make the
9070         new hook interface.
9071
9072 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9073
9074         * Makefile.in (OBJS): Add early-remat.o.
9075         * target.def (select_early_remat_modes): New hook.
9076         * doc/tm.texi.in (TARGET_SELECT_EARLY_REMAT_MODES): New hook.
9077         * doc/tm.texi: Regenerate.
9078         * targhooks.h (default_select_early_remat_modes): Declare.
9079         * targhooks.c (default_select_early_remat_modes): New function.
9080         * timevar.def (TV_EARLY_REMAT): New timevar.
9081         * passes.def (pass_early_remat): New pass.
9082         * tree-pass.h (make_pass_early_remat): Declare.
9083         * early-remat.c: New file.
9084         * config/aarch64/aarch64.c (aarch64_select_early_remat_modes): New
9085         function.
9086         (TARGET_SELECT_EARLY_REMAT_MODES): Define.
9087
9088 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9089             Alan Hayward  <alan.hayward@arm.com>
9090             David Sherwood  <david.sherwood@arm.com>
9091
9092         * tree-vect-loop-manip.c (vect_gen_scalar_loop_niters): Replace
9093         vfm1 with a bound_epilog parameter.
9094         (vect_do_peeling): Update calls accordingly, and move the prologue
9095         call earlier in the function.  Treat the base bound_epilog as 0 for
9096         fully-masked loops and retain vf - 1 for other loops.  Add 1 to
9097         this base when peeling for gaps.
9098         * tree-vect-loop.c (vect_analyze_loop_2): Allow peeling for gaps
9099         with fully-masked loops.
9100         (vect_estimate_min_profitable_iters): Handle the single peeled
9101         iteration in that case.
9102
9103 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9104             Alan Hayward  <alan.hayward@arm.com>
9105             David Sherwood  <david.sherwood@arm.com>
9106
9107         * tree-vect-data-refs.c (vect_analyze_group_access_1): Allow
9108         single-element interleaving even if the size is not a power of 2.
9109         * tree-vect-stmts.c (get_load_store_type): Disallow elementwise
9110         accesses for single-element interleaving if the group size is
9111         not a power of 2.
9112
9113 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9114             Alan Hayward  <alan.hayward@arm.com>
9115             David Sherwood  <david.sherwood@arm.com>
9116
9117         * doc/md.texi (fold_extract_last_@var{m}): Document.
9118         * doc/sourcebuild.texi (vect_fold_extract_last): Likewise.
9119         * optabs.def (fold_extract_last_optab): New optab.
9120         * internal-fn.def (FOLD_EXTRACT_LAST): New internal function.
9121         * internal-fn.c (fold_extract_direct): New macro.
9122         (expand_fold_extract_optab_fn): Likewise.
9123         (direct_fold_extract_optab_supported_p): Likewise.
9124         * tree-vectorizer.h (EXTRACT_LAST_REDUCTION): New vect_reduction_type.
9125         * tree-vect-loop.c (vect_model_reduction_cost): Handle
9126         EXTRACT_LAST_REDUCTION.
9127         (get_initial_def_for_reduction): Do not create an initial vector
9128         for EXTRACT_LAST_REDUCTION reductions.
9129         (vectorizable_reduction): Leave the scalar phi in place for
9130         EXTRACT_LAST_REDUCTIONs.  Try using EXTRACT_LAST_REDUCTION
9131         ahead of INTEGER_INDUC_COND_REDUCTION.  Do not check for an
9132         epilogue code for EXTRACT_LAST_REDUCTION and defer the
9133         transform phase to vectorizable_condition.
9134         * tree-vect-stmts.c (vect_finish_stmt_generation_1): New function,
9135         split out from...
9136         (vect_finish_stmt_generation): ...here.
9137         (vect_finish_replace_stmt): New function.
9138         (vectorizable_condition): Handle EXTRACT_LAST_REDUCTION.
9139         * config/aarch64/aarch64-sve.md (fold_extract_last_<mode>): New
9140         pattern.
9141         * config/aarch64/aarch64.md (UNSPEC_CLASTB): New unspec.
9142
9143 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9144             Alan Hayward  <alan.hayward@arm.com>
9145             David Sherwood  <david.sherwood@arm.com>
9146
9147         * doc/md.texi (extract_last_@var{m}): Document.
9148         * optabs.def (extract_last_optab): New optab.
9149         * internal-fn.def (EXTRACT_LAST): New internal function.
9150         * internal-fn.c (cond_unary_direct): New macro.
9151         (expand_cond_unary_optab_fn): Likewise.
9152         (direct_cond_unary_optab_supported_p): Likewise.
9153         * tree-vect-loop.c (vectorizable_live_operation): Allow fully-masked
9154         loops using EXTRACT_LAST.
9155         * config/aarch64/aarch64-sve.md (aarch64_sve_lastb<mode>): Rename to...
9156         (extract_last_<mode>): ...this optab.
9157         (vec_extract<mode><Vel>): Update accordingly.
9158
9159 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9160             Alan Hayward  <alan.hayward@arm.com>
9161             David Sherwood  <david.sherwood@arm.com>
9162
9163         * target.def (empty_mask_is_expensive): New hook.
9164         * doc/tm.texi.in (TARGET_VECTORIZE_EMPTY_MASK_IS_EXPENSIVE): New hook.
9165         * doc/tm.texi: Regenerate.
9166         * targhooks.h (default_empty_mask_is_expensive): Declare.
9167         * targhooks.c (default_empty_mask_is_expensive): New function.
9168         * tree-vectorizer.c (vectorize_loops): Only call optimize_mask_stores
9169         if the target says that empty masks are expensive.
9170         * config/aarch64/aarch64.c (aarch64_empty_mask_is_expensive):
9171         New function.
9172         (TARGET_VECTORIZE_EMPTY_MASK_IS_EXPENSIVE): Redefine.
9173
9174 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9175             Alan Hayward  <alan.hayward@arm.com>
9176             David Sherwood  <david.sherwood@arm.com>
9177
9178         * tree-vectorizer.h (_loop_vec_info::mask_skip_niters): New field.
9179         (LOOP_VINFO_MASK_SKIP_NITERS): New macro.
9180         (vect_use_loop_mask_for_alignment_p): New function.
9181         (vect_prepare_for_masked_peels, vect_gen_while_not): Declare.
9182         * tree-vect-loop-manip.c (vect_set_loop_masks_directly): Add an
9183         niters_skip argument.  Make sure that the first niters_skip elements
9184         of the first iteration are inactive.
9185         (vect_set_loop_condition_masked): Handle LOOP_VINFO_MASK_SKIP_NITERS.
9186         Update call to vect_set_loop_masks_directly.
9187         (get_misalign_in_elems): New function, split out from...
9188         (vect_gen_prolog_loop_niters): ...here.
9189         (vect_update_init_of_dr): Take a code argument that specifies whether
9190         the adjustment should be added or subtracted.
9191         (vect_update_init_of_drs): Likewise.
9192         (vect_prepare_for_masked_peels): New function.
9193         (vect_do_peeling): Skip prologue peeling if we're using a mask
9194         instead.  Update call to vect_update_inits_of_drs.
9195         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
9196         mask_skip_niters.
9197         (vect_analyze_loop_2): Allow fully-masked loops with peeling for
9198         alignment.  Do not include the number of peeled iterations in
9199         the minimum threshold in that case.
9200         (vectorizable_induction): Adjust the start value down by
9201         LOOP_VINFO_MASK_SKIP_NITERS iterations.
9202         (vect_transform_loop): Call vect_prepare_for_masked_peels.
9203         Take the number of skipped iterations into account when calculating
9204         the loop bounds.
9205         * tree-vect-stmts.c (vect_gen_while_not): New function.
9206
9207 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9208             Alan Hayward  <alan.hayward@arm.com>
9209             David Sherwood  <david.sherwood@arm.com>
9210
9211         * doc/sourcebuild.texi (vect_fully_masked): Document.
9212         * params.def (PARAM_MIN_VECT_LOOP_BOUND): Change minimum and
9213         default value to 0.
9214         * tree-vect-loop.c (vect_analyze_loop_costing): New function,
9215         split out from...
9216         (vect_analyze_loop_2): ...here. Don't check the vectorization
9217         factor against the number of loop iterations if the loop is
9218         fully-masked.
9219
9220 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9221             Alan Hayward  <alan.hayward@arm.com>
9222             David Sherwood  <david.sherwood@arm.com>
9223
9224         * tree-ssa-loop-ivopts.c (USE_ADDRESS): Split into...
9225         (USE_REF_ADDRESS, USE_PTR_ADDRESS): ...these new use types.
9226         (dump_groups): Update accordingly.
9227         (iv_use::mem_type): New member variable.
9228         (address_p): New function.
9229         (record_use): Add a mem_type argument and initialize the new
9230         mem_type field.
9231         (record_group_use): Add a mem_type argument.  Use address_p.
9232         Remove obsolete null checks of base_object.  Update call to record_use.
9233         (find_interesting_uses_op): Update call to record_group_use.
9234         (find_interesting_uses_cond): Likewise.
9235         (find_interesting_uses_address): Likewise.
9236         (get_mem_type_for_internal_fn): New function.
9237         (find_address_like_use): Likewise.
9238         (find_interesting_uses_stmt): Try find_address_like_use before
9239         calling find_interesting_uses_op.
9240         (addr_offset_valid_p): Use the iv mem_type field as the type
9241         of the addressed memory.
9242         (add_autoinc_candidates): Likewise.
9243         (get_address_cost): Likewise.
9244         (split_small_address_groups_p): Use address_p.
9245         (split_address_groups): Likewise.
9246         (add_iv_candidate_for_use): Likewise.
9247         (autoinc_possible_for_pair): Likewise.
9248         (rewrite_groups): Likewise.
9249         (get_use_type): Check for USE_REF_ADDRESS instead of USE_ADDRESS.
9250         (determine_group_iv_cost): Update after split of USE_ADDRESS.
9251         (get_alias_ptr_type_for_ptr_address): New function.
9252         (rewrite_use_address): Rewrite address uses in calls that were
9253         identified by find_address_like_use.
9254
9255 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9256             Alan Hayward  <alan.hayward@arm.com>
9257             David Sherwood  <david.sherwood@arm.com>
9258
9259         * expr.c (expand_expr_addr_expr_1): Handle ADDR_EXPRs of
9260         TARGET_MEM_REFs.
9261         * gimple-expr.h (is_gimple_addressable: Likewise.
9262         * gimple-expr.c (is_gimple_address): Likewise.
9263         * internal-fn.c (expand_call_mem_ref): New function.
9264         (expand_mask_load_optab_fn): Use it.
9265         (expand_mask_store_optab_fn): Likewise.
9266
9267 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9268             Alan Hayward  <alan.hayward@arm.com>
9269             David Sherwood  <david.sherwood@arm.com>
9270
9271         * doc/md.texi (cond_add@var{mode}, cond_sub@var{mode})
9272         (cond_and@var{mode}, cond_ior@var{mode}, cond_xor@var{mode})
9273         (cond_smin@var{mode}, cond_smax@var{mode}, cond_umin@var{mode})
9274         (cond_umax@var{mode}): Document.
9275         * optabs.def (cond_add_optab, cond_sub_optab, cond_and_optab)
9276         (cond_ior_optab, cond_xor_optab, cond_smin_optab, cond_smax_optab)
9277         (cond_umin_optab, cond_umax_optab): New optabs.
9278         * internal-fn.def (COND_ADD, COND_SUB, COND_MIN, COND_MAX, COND_AND)
9279         (COND_IOR, COND_XOR): New internal functions.
9280         * internal-fn.h (get_conditional_internal_fn): Declare.
9281         * internal-fn.c (cond_binary_direct): New macro.
9282         (expand_cond_binary_optab_fn): Likewise.
9283         (direct_cond_binary_optab_supported_p): Likewise.
9284         (get_conditional_internal_fn): New function.
9285         * tree-vect-loop.c (vectorizable_reduction): Handle fully-masked loops.
9286         Cope with reduction statements that are vectorized as calls rather
9287         than assignments.
9288         * config/aarch64/aarch64-sve.md (cond_<optab><mode>): New insns.
9289         * config/aarch64/iterators.md (UNSPEC_COND_ADD, UNSPEC_COND_SUB)
9290         (UNSPEC_COND_SMAX, UNSPEC_COND_UMAX, UNSPEC_COND_SMIN)
9291         (UNSPEC_COND_UMIN, UNSPEC_COND_AND, UNSPEC_COND_ORR)
9292         (UNSPEC_COND_EOR): New unspecs.
9293         (optab): Add mappings for them.
9294         (SVE_COND_INT_OP, SVE_COND_FP_OP): New int iterators.
9295         (sve_int_op, sve_fp_op): New int attributes.
9296
9297 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9298             Alan Hayward  <alan.hayward@arm.com>
9299             David Sherwood  <david.sherwood@arm.com>
9300
9301         * optabs.def (while_ult_optab): New optab.
9302         * doc/md.texi (while_ult@var{m}@var{n}): Document.
9303         * internal-fn.def (WHILE_ULT): New internal function.
9304         * internal-fn.h (direct_internal_fn_supported_p): New override
9305         that takes two types as argument.
9306         * internal-fn.c (while_direct): New macro.
9307         (expand_while_optab_fn): New function.
9308         (convert_optab_supported_p): Likewise.
9309         (direct_while_optab_supported_p): New macro.
9310         * wide-int.h (wi::udiv_ceil): New function.
9311         * tree-vectorizer.h (rgroup_masks): New structure.
9312         (vec_loop_masks): New typedef.
9313         (_loop_vec_info): Add masks, mask_compare_type, can_fully_mask_p
9314         and fully_masked_p.
9315         (LOOP_VINFO_CAN_FULLY_MASK_P, LOOP_VINFO_FULLY_MASKED_P)
9316         (LOOP_VINFO_MASKS, LOOP_VINFO_MASK_COMPARE_TYPE): New macros.
9317         (vect_max_vf): New function.
9318         (slpeel_make_loop_iterate_ntimes): Delete.
9319         (vect_set_loop_condition, vect_get_loop_mask_type, vect_gen_while)
9320         (vect_halve_mask_nunits, vect_double_mask_nunits): Declare.
9321         (vect_record_loop_mask, vect_get_loop_mask): Likewise.
9322         * tree-vect-loop-manip.c: Include tree-ssa-loop-niter.h,
9323         internal-fn.h, stor-layout.h and optabs-query.h.
9324         (vect_set_loop_mask): New function.
9325         (add_preheader_seq): Likewise.
9326         (add_header_seq): Likewise.
9327         (interleave_supported_p): Likewise.
9328         (vect_maybe_permute_loop_masks): Likewise.
9329         (vect_set_loop_masks_directly): Likewise.
9330         (vect_set_loop_condition_masked): Likewise.
9331         (vect_set_loop_condition_unmasked): New function, split out from
9332         slpeel_make_loop_iterate_ntimes.
9333         (slpeel_make_loop_iterate_ntimes): Rename to..
9334         (vect_set_loop_condition): ...this.  Use vect_set_loop_condition_masked
9335         for fully-masked loops and vect_set_loop_condition_unmasked otherwise.
9336         (vect_do_peeling): Update call accordingly.
9337         (vect_gen_vector_loop_niters): Use VF as the step for fully-masked
9338         loops.
9339         * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
9340         mask_compare_type, can_fully_mask_p and fully_masked_p.
9341         (release_vec_loop_masks): New function.
9342         (_loop_vec_info): Use it to free the loop masks.
9343         (can_produce_all_loop_masks_p): New function.
9344         (vect_get_max_nscalars_per_iter): Likewise.
9345         (vect_verify_full_masking): Likewise.
9346         (vect_analyze_loop_2): Save LOOP_VINFO_CAN_FULLY_MASK_P around
9347         retries, and free the mask rgroups before retrying.  Check loop-wide
9348         reasons for disallowing fully-masked loops.  Make the final decision
9349         about whether use a fully-masked loop or not.
9350         (vect_estimate_min_profitable_iters): Do not assume that peeling
9351         for the number of iterations will be needed for fully-masked loops.
9352         (vectorizable_reduction): Disable fully-masked loops.
9353         (vectorizable_live_operation): Likewise.
9354         (vect_halve_mask_nunits): New function.
9355         (vect_double_mask_nunits): Likewise.
9356         (vect_record_loop_mask): Likewise.
9357         (vect_get_loop_mask): Likewise.
9358         (vect_transform_loop): Handle the case in which the final loop
9359         iteration might handle a partial vector.  Call vect_set_loop_condition
9360         instead of slpeel_make_loop_iterate_ntimes.
9361         * tree-vect-stmts.c: Include tree-ssa-loop-niter.h and gimple-fold.h.
9362         (check_load_store_masking): New function.
9363         (prepare_load_store_mask): Likewise.
9364         (vectorizable_store): Handle fully-masked loops.
9365         (vectorizable_load): Likewise.
9366         (supportable_widening_operation): Use vect_halve_mask_nunits for
9367         booleans.
9368         (supportable_narrowing_operation): Likewise vect_double_mask_nunits.
9369         (vect_gen_while): New function.
9370         * config/aarch64/aarch64.md (umax<mode>3): New expander.
9371         (aarch64_uqdec<mode>): New insn.
9372
9373 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9374             Alan Hayward  <alan.hayward@arm.com>
9375             David Sherwood  <david.sherwood@arm.com>
9376
9377         * optabs.def (reduc_and_scal_optab, reduc_ior_scal_optab)
9378         (reduc_xor_scal_optab): New optabs.
9379         * doc/md.texi (reduc_and_scal_@var{m}, reduc_ior_scal_@var{m})
9380         (reduc_xor_scal_@var{m}): Document.
9381         * doc/sourcebuild.texi (vect_logical_reduc): Likewise.
9382         * internal-fn.def (IFN_REDUC_AND, IFN_REDUC_IOR, IFN_REDUC_XOR): New
9383         internal functions.
9384         * fold-const-call.c (fold_const_call): Handle them.
9385         * tree-vect-loop.c (reduction_fn_for_scalar_code): Return the new
9386         internal functions for BIT_AND_EXPR, BIT_IOR_EXPR and BIT_XOR_EXPR.
9387         * config/aarch64/aarch64-sve.md (reduc_<bit_reduc>_scal_<mode>):
9388         (*reduc_<bit_reduc>_scal_<mode>): New patterns.
9389         * config/aarch64/iterators.md (UNSPEC_ANDV, UNSPEC_ORV)
9390         (UNSPEC_XORV): New unspecs.
9391         (optab): Add entries for them.
9392         (BITWISEV): New int iterator.
9393         (bit_reduc_op): New int attributes.
9394
9395 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9396             Alan Hayward  <alan.hayward@arm.com>
9397             David Sherwood  <david.sherwood@arm.com>
9398
9399         * doc/md.texi (vec_shl_insert_@var{m}): New optab.
9400         * internal-fn.def (VEC_SHL_INSERT): New internal function.
9401         * optabs.def (vec_shl_insert_optab): New optab.
9402         * tree-vectorizer.h (can_duplicate_and_interleave_p): Declare.
9403         (duplicate_and_interleave): Likewise.
9404         * tree-vect-loop.c: Include internal-fn.h.
9405         (neutral_op_for_slp_reduction): New function, split out from
9406         get_initial_defs_for_reduction.
9407         (get_initial_def_for_reduction): Handle option 2 for variable-length
9408         vectors by loading the neutral value into a vector and then shifting
9409         the initial value into element 0.
9410         (get_initial_defs_for_reduction): Replace the code argument with
9411         the neutral value calculated by neutral_op_for_slp_reduction.
9412         Use gimple_build_vector for constant-length vectors.
9413         Use IFN_VEC_SHL_INSERT for variable-length vectors if all
9414         but the first group_size elements have a neutral value.
9415         Use duplicate_and_interleave otherwise.
9416         (vect_create_epilog_for_reduction): Take a neutral_op parameter.
9417         Update call to get_initial_defs_for_reduction.  Handle SLP
9418         reductions for variable-length vectors by creating one vector
9419         result for each scalar result, with the elements associated
9420         with other scalar results stubbed out with the neutral value.
9421         (vectorizable_reduction): Call neutral_op_for_slp_reduction.
9422         Require IFN_VEC_SHL_INSERT for double reductions on
9423         variable-length vectors, or SLP reductions that have
9424         a neutral value.  Require can_duplicate_and_interleave_p
9425         support for variable-length unchained SLP reductions if there
9426         is no neutral value, such as for MIN/MAX reductions.  Also require
9427         the number of vector elements to be a multiple of the number of
9428         SLP statements when doing variable-length unchained SLP reductions.
9429         Update call to vect_create_epilog_for_reduction.
9430         * tree-vect-slp.c (can_duplicate_and_interleave_p): Make public
9431         and remove initial values.
9432         (duplicate_and_interleave): Make public.
9433         * config/aarch64/aarch64.md (UNSPEC_INSR): New unspec.
9434         * config/aarch64/aarch64-sve.md (vec_shl_insert_<mode>): New insn.
9435
9436 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9437             Alan Hayward  <alan.hayward@arm.com>
9438             David Sherwood  <david.sherwood@arm.com>
9439
9440         * tree-vect-slp.c: Include gimple-fold.h and internal-fn.h
9441         (can_duplicate_and_interleave_p): New function.
9442         (vect_get_and_check_slp_defs): Take the vector of statements
9443         rather than just the current one.  Remove excess parentheses.
9444         Restriction rejectinon of vect_constant_def and vect_external_def
9445         for variable-length vectors to boolean types, or types for which
9446         can_duplicate_and_interleave_p is false.
9447         (vect_build_slp_tree_2): Update call to vect_get_and_check_slp_defs.
9448         (duplicate_and_interleave): New function.
9449         (vect_get_constant_vectors): Use gimple_build_vector for
9450         constant-length vectors and suitable variable-length constant
9451         vectors.  Use duplicate_and_interleave for other variable-length
9452         vectors.  Don't defer the update when inserting new statements.
9453
9454 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9455             Alan Hayward  <alan.hayward@arm.com>
9456             David Sherwood  <david.sherwood@arm.com>
9457
9458         * tree-vect-loop.c (vect_estimate_min_profitable_iters): Make sure
9459         min_profitable_iters doesn't go negative.
9460
9461 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9462             Alan Hayward  <alan.hayward@arm.com>
9463             David Sherwood  <david.sherwood@arm.com>
9464
9465         * doc/md.texi (vec_mask_load_lanes@var{m}@var{n}): Document.
9466         (vec_mask_store_lanes@var{m}@var{n}): Likewise.
9467         * optabs.def (vec_mask_load_lanes_optab): New optab.
9468         (vec_mask_store_lanes_optab): Likewise.
9469         * internal-fn.def (MASK_LOAD_LANES): New internal function.
9470         (MASK_STORE_LANES): Likewise.
9471         * internal-fn.c (mask_load_lanes_direct): New macro.
9472         (mask_store_lanes_direct): Likewise.
9473         (expand_mask_load_optab_fn): Handle masked operations.
9474         (expand_mask_load_lanes_optab_fn): New macro.
9475         (expand_mask_store_optab_fn): Handle masked operations.
9476         (expand_mask_store_lanes_optab_fn): New macro.
9477         (direct_mask_load_lanes_optab_supported_p): Likewise.
9478         (direct_mask_store_lanes_optab_supported_p): Likewise.
9479         * tree-vectorizer.h (vect_store_lanes_supported): Take a masked_p
9480         parameter.
9481         (vect_load_lanes_supported): Likewise.
9482         * tree-vect-data-refs.c (strip_conversion): New function.
9483         (can_group_stmts_p): Likewise.
9484         (vect_analyze_data_ref_accesses): Use it instead of checking
9485         for a pair of assignments.
9486         (vect_store_lanes_supported): Take a masked_p parameter.
9487         (vect_load_lanes_supported): Likewise.
9488         * tree-vect-loop.c (vect_analyze_loop_2): Update calls to
9489         vect_store_lanes_supported and vect_load_lanes_supported.
9490         * tree-vect-slp.c (vect_analyze_slp_instance): Likewise.
9491         * tree-vect-stmts.c (get_group_load_store_type): Take a masked_p
9492         parameter.  Don't allow gaps for masked accesses.
9493         Use vect_get_store_rhs.  Update calls to vect_store_lanes_supported
9494         and vect_load_lanes_supported.
9495         (get_load_store_type): Take a masked_p parameter and update
9496         call to get_group_load_store_type.
9497         (vectorizable_store): Update call to get_load_store_type.
9498         Handle IFN_MASK_STORE_LANES.
9499         (vectorizable_load): Update call to get_load_store_type.
9500         Handle IFN_MASK_LOAD_LANES.
9501
9502 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9503             Alan Hayward  <alan.hayward@arm.com>
9504             David Sherwood  <david.sherwood@arm.com>
9505
9506         * config/aarch64/aarch64-modes.def: Define x2, x3 and x4 vector
9507         modes for SVE.
9508         * config/aarch64/aarch64-protos.h
9509         (aarch64_sve_struct_memory_operand_p): Declare.
9510         * config/aarch64/iterators.md (SVE_STRUCT): New mode iterator.
9511         (vector_count, insn_length, VSINGLE, vsingle): New mode attributes.
9512         (VPRED, vpred): Handle SVE structure modes.
9513         * config/aarch64/constraints.md (Utx): New constraint.
9514         * config/aarch64/predicates.md (aarch64_sve_struct_memory_operand)
9515         (aarch64_sve_struct_nonimmediate_operand): New predicates.
9516         * config/aarch64/aarch64.md (UNSPEC_LDN, UNSPEC_STN): New unspecs.
9517         * config/aarch64/aarch64-sve.md (mov<mode>, *aarch64_sve_mov<mode>_le)
9518         (*aarch64_sve_mov<mode>_be, pred_mov<mode>): New patterns for
9519         structure modes.  Split into pieces after RA.
9520         (vec_load_lanes<mode><vsingle>, vec_mask_load_lanes<mode><vsingle>)
9521         (vec_store_lanes<mode><vsingle>, vec_mask_store_lanes<mode><vsingle>):
9522         New patterns.
9523         * config/aarch64/aarch64.c (aarch64_classify_vector_mode): Handle
9524         SVE structure modes.
9525         (aarch64_classify_address): Likewise.
9526         (sizetochar): Move earlier in file.
9527         (aarch64_print_operand): Handle SVE register lists.
9528         (aarch64_array_mode): New function.
9529         (aarch64_sve_struct_memory_operand_p): Likewise.
9530         (TARGET_ARRAY_MODE): Redefine.
9531
9532 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9533             Alan Hayward  <alan.hayward@arm.com>
9534             David Sherwood  <david.sherwood@arm.com>
9535
9536         * target.def (array_mode): New target hook.
9537         * doc/tm.texi.in (TARGET_ARRAY_MODE): New hook.
9538         * doc/tm.texi: Regenerate.
9539         * hooks.h (hook_optmode_mode_uhwi_none): Declare.
9540         * hooks.c (hook_optmode_mode_uhwi_none): New function.
9541         * tree-vect-data-refs.c (vect_lanes_optab_supported_p): Use
9542         targetm.array_mode.
9543         * stor-layout.c (mode_for_array): Likewise.  Support polynomial
9544         type sizes.
9545
9546 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9547             Alan Hayward  <alan.hayward@arm.com>
9548             David Sherwood  <david.sherwood@arm.com>
9549
9550         * fold-const.c (fold_binary_loc): Check the argument types
9551         rather than the result type when testing for a vector operation.
9552
9553 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9554
9555         * doc/tm.texi.in (DWARF_LAZY_REGISTER_VALUE): Document.
9556         * doc/tm.texi: Regenerate.
9557
9558 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9559             Alan Hayward  <alan.hayward@arm.com>
9560             David Sherwood  <david.sherwood@arm.com>
9561
9562         * doc/invoke.texi (-msve-vector-bits=): Document new option.
9563         (sve): Document new AArch64 extension.
9564         * doc/md.texi (w): Extend the description of the AArch64
9565         constraint to include SVE vectors.
9566         (Upl, Upa): Document new AArch64 predicate constraints.
9567         * config/aarch64/aarch64-opts.h (aarch64_sve_vector_bits_enum): New
9568         enum.
9569         * config/aarch64/aarch64.opt (sve_vector_bits): New enum.
9570         (msve-vector-bits=): New option.
9571         * config/aarch64/aarch64-option-extensions.def (fp, simd): Disable
9572         SVE when these are disabled.
9573         (sve): New extension.
9574         * config/aarch64/aarch64-modes.def: Define SVE vector and predicate
9575         modes.  Adjust their number of units based on aarch64_sve_vg.
9576         (MAX_BITSIZE_MODE_ANY_MODE): Define.
9577         * config/aarch64/aarch64-protos.h (ADDR_QUERY_ANY): New
9578         aarch64_addr_query_type.
9579         (aarch64_const_vec_all_same_in_range_p, aarch64_sve_pred_mode)
9580         (aarch64_sve_cnt_immediate_p, aarch64_sve_addvl_addpl_immediate_p)
9581         (aarch64_sve_inc_dec_immediate_p, aarch64_add_offset_temporaries)
9582         (aarch64_split_add_offset, aarch64_output_sve_cnt_immediate)
9583         (aarch64_output_sve_addvl_addpl, aarch64_output_sve_inc_dec_immediate)
9584         (aarch64_output_sve_mov_immediate, aarch64_output_ptrue): Declare.
9585         (aarch64_simd_imm_zero_p): Delete.
9586         (aarch64_check_zero_based_sve_index_immediate): Declare.
9587         (aarch64_sve_index_immediate_p, aarch64_sve_arith_immediate_p)
9588         (aarch64_sve_bitmask_immediate_p, aarch64_sve_dup_immediate_p)
9589         (aarch64_sve_cmp_immediate_p, aarch64_sve_float_arith_immediate_p)
9590         (aarch64_sve_float_mul_immediate_p): Likewise.
9591         (aarch64_classify_symbol): Take the offset as a HOST_WIDE_INT
9592         rather than an rtx.
9593         (aarch64_sve_ld1r_operand_p, aarch64_sve_ldr_operand_p): Declare.
9594         (aarch64_expand_mov_immediate): Take a gen_vec_duplicate callback.
9595         (aarch64_emit_sve_pred_move, aarch64_expand_sve_mem_move): Declare.
9596         (aarch64_expand_sve_vec_cmp_int, aarch64_expand_sve_vec_cmp_float)
9597         (aarch64_expand_sve_vcond, aarch64_expand_sve_vec_perm): Declare.
9598         (aarch64_regmode_natural_size): Likewise.
9599         * config/aarch64/aarch64.h (AARCH64_FL_SVE): New macro.
9600         (AARCH64_FL_V8_3, AARCH64_FL_RCPC, AARCH64_FL_DOTPROD): Shift
9601         left one place.
9602         (AARCH64_ISA_SVE, TARGET_SVE): New macros.
9603         (FIXED_REGISTERS, CALL_USED_REGISTERS, REGISTER_NAMES): Add entries
9604         for VG and the SVE predicate registers.
9605         (V_ALIASES): Add a "z"-prefixed alias.
9606         (FIRST_PSEUDO_REGISTER): Change to P15_REGNUM + 1.
9607         (AARCH64_DWARF_VG, AARCH64_DWARF_P0): New macros.
9608         (PR_REGNUM_P, PR_LO_REGNUM_P): Likewise.
9609         (PR_LO_REGS, PR_HI_REGS, PR_REGS): New reg_classes.
9610         (REG_CLASS_NAMES): Add entries for them.
9611         (REG_CLASS_CONTENTS): Likewise.  Update ALL_REGS to include VG
9612         and the predicate registers.
9613         (aarch64_sve_vg): Declare.
9614         (BITS_PER_SVE_VECTOR, BYTES_PER_SVE_VECTOR, BYTES_PER_SVE_PRED)
9615         (SVE_BYTE_MODE, MAX_COMPILE_TIME_VEC_BYTES): New macros.
9616         (REGMODE_NATURAL_SIZE): Define.
9617         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Handle
9618         SVE macros.
9619         * config/aarch64/aarch64.c: Include cfgrtl.h.
9620         (simd_immediate_info): Add a constructor for series vectors,
9621         and an associated step field.
9622         (aarch64_sve_vg): New variable.
9623         (aarch64_dbx_register_number): Handle VG and the predicate registers.
9624         (aarch64_vect_struct_mode_p, aarch64_vector_mode_p): Delete.
9625         (VEC_ADVSIMD, VEC_SVE_DATA, VEC_SVE_PRED, VEC_STRUCT, VEC_ANY_SVE)
9626         (VEC_ANY_DATA, VEC_STRUCT): New constants.
9627         (aarch64_advsimd_struct_mode_p, aarch64_sve_pred_mode_p)
9628         (aarch64_classify_vector_mode, aarch64_vector_data_mode_p)
9629         (aarch64_sve_data_mode_p, aarch64_sve_pred_mode)
9630         (aarch64_get_mask_mode): New functions.
9631         (aarch64_hard_regno_nregs): Handle SVE data modes for FP_REGS
9632         and FP_LO_REGS.  Handle PR_REGS, PR_LO_REGS and PR_HI_REGS.
9633         (aarch64_hard_regno_mode_ok): Handle VG.  Also handle the SVE
9634         predicate modes and predicate registers.  Explicitly restrict
9635         GPRs to modes of 16 bytes or smaller.  Only allow FP registers
9636         to store a vector mode if it is recognized by
9637         aarch64_classify_vector_mode.
9638         (aarch64_regmode_natural_size): New function.
9639         (aarch64_hard_regno_caller_save_mode): Return the original mode
9640         for predicates.
9641         (aarch64_sve_cnt_immediate_p, aarch64_output_sve_cnt_immediate)
9642         (aarch64_sve_addvl_addpl_immediate_p, aarch64_output_sve_addvl_addpl)
9643         (aarch64_sve_inc_dec_immediate_p, aarch64_output_sve_inc_dec_immediate)
9644         (aarch64_add_offset_1_temporaries, aarch64_offset_temporaries): New
9645         functions.
9646         (aarch64_add_offset): Add a temp2 parameter.  Assert that temp1
9647         does not overlap dest if the function is frame-related.  Handle
9648         SVE constants.
9649         (aarch64_split_add_offset): New function.
9650         (aarch64_add_sp, aarch64_sub_sp): Add temp2 parameters and pass
9651         them aarch64_add_offset.
9652         (aarch64_allocate_and_probe_stack_space): Add a temp2 parameter
9653         and update call to aarch64_sub_sp.
9654         (aarch64_add_cfa_expression): New function.
9655         (aarch64_expand_prologue): Pass extra temporary registers to the
9656         functions above.  Handle the case in which we need to emit new
9657         DW_CFA_expressions for registers that were originally saved
9658         relative to the stack pointer, but now have to be expressed
9659         relative to the frame pointer.
9660         (aarch64_output_mi_thunk): Pass extra temporary registers to the
9661         functions above.
9662         (aarch64_expand_epilogue): Likewise.  Prevent inheritance of
9663         IP0 and IP1 values for SVE frames.
9664         (aarch64_expand_vec_series): New function.
9665         (aarch64_expand_sve_widened_duplicate): Likewise.
9666         (aarch64_expand_sve_const_vector): Likewise.
9667         (aarch64_expand_mov_immediate): Add a gen_vec_duplicate parameter.
9668         Handle SVE constants.  Use emit_move_insn to move a force_const_mem
9669         into the register, rather than emitting a SET directly.
9670         (aarch64_emit_sve_pred_move, aarch64_expand_sve_mem_move)
9671         (aarch64_get_reg_raw_mode, offset_4bit_signed_scaled_p)
9672         (offset_6bit_unsigned_scaled_p, aarch64_offset_7bit_signed_scaled_p)
9673         (offset_9bit_signed_scaled_p): New functions.
9674         (aarch64_replicate_bitmask_imm): New function.
9675         (aarch64_bitmask_imm): Use it.
9676         (aarch64_cannot_force_const_mem): Reject expressions involving
9677         a CONST_POLY_INT.  Update call to aarch64_classify_symbol.
9678         (aarch64_classify_index): Handle SVE indices, by requiring
9679         a plain register index with a scale that matches the element size.
9680         (aarch64_classify_address): Handle SVE addresses.  Assert that
9681         the mode of the address is VOIDmode or an integer mode.
9682         Update call to aarch64_classify_symbol.
9683         (aarch64_classify_symbolic_expression): Update call to
9684         aarch64_classify_symbol.
9685         (aarch64_const_vec_all_in_range_p): New function.
9686         (aarch64_print_vector_float_operand): Likewise.
9687         (aarch64_print_operand): Handle 'N' and 'C'.  Use "zN" rather than
9688         "vN" for FP registers with SVE modes.  Handle (const ...) vectors
9689         and the FP immediates 1.0 and 0.5.
9690         (aarch64_print_address_internal): Handle SVE addresses.
9691         (aarch64_print_operand_address): Use ADDR_QUERY_ANY.
9692         (aarch64_regno_regclass): Handle predicate registers.
9693         (aarch64_secondary_reload): Handle big-endian reloads of SVE
9694         data modes.
9695         (aarch64_class_max_nregs): Handle SVE modes and predicate registers.
9696         (aarch64_rtx_costs): Check for ADDVL and ADDPL instructions.
9697         (aarch64_convert_sve_vector_bits): New function.
9698         (aarch64_override_options): Use it to handle -msve-vector-bits=.
9699         (aarch64_classify_symbol): Take the offset as a HOST_WIDE_INT
9700         rather than an rtx.
9701         (aarch64_legitimate_constant_p): Use aarch64_classify_vector_mode.
9702         Handle SVE vector and predicate modes.  Accept VL-based constants
9703         that need only one temporary register, and VL offsets that require
9704         no temporary registers.
9705         (aarch64_conditional_register_usage): Mark the predicate registers
9706         as fixed if SVE isn't available.
9707         (aarch64_vector_mode_supported_p): Use aarch64_classify_vector_mode.
9708         Return true for SVE vector and predicate modes.
9709         (aarch64_simd_container_mode): Take the number of bits as a poly_int64
9710         rather than an unsigned int.  Handle SVE modes.
9711         (aarch64_preferred_simd_mode): Update call accordingly.  Handle
9712         SVE modes.
9713         (aarch64_autovectorize_vector_sizes): Add BYTES_PER_SVE_VECTOR
9714         if SVE is enabled.
9715         (aarch64_sve_index_immediate_p, aarch64_sve_arith_immediate_p)
9716         (aarch64_sve_bitmask_immediate_p, aarch64_sve_dup_immediate_p)
9717         (aarch64_sve_cmp_immediate_p, aarch64_sve_float_arith_immediate_p)
9718         (aarch64_sve_float_mul_immediate_p): New functions.
9719         (aarch64_sve_valid_immediate): New function.
9720         (aarch64_simd_valid_immediate): Use it as the fallback for SVE vectors.
9721         Explicitly reject structure modes.  Check for INDEX constants.
9722         Handle PTRUE and PFALSE constants.
9723         (aarch64_check_zero_based_sve_index_immediate): New function.
9724         (aarch64_simd_imm_zero_p): Delete.
9725         (aarch64_mov_operand_p): Use aarch64_simd_valid_immediate for
9726         vector modes.  Accept constants in the range of CNT[BHWD].
9727         (aarch64_simd_scalar_immediate_valid_for_move): Explicitly
9728         ask for an Advanced SIMD mode.
9729         (aarch64_sve_ld1r_operand_p, aarch64_sve_ldr_operand_p): New functions.
9730         (aarch64_simd_vector_alignment): Handle SVE predicates.
9731         (aarch64_vectorize_preferred_vector_alignment): New function.
9732         (aarch64_simd_vector_alignment_reachable): Use it instead of
9733         the vector size.
9734         (aarch64_shift_truncation_mask): Use aarch64_vector_data_mode_p.
9735         (aarch64_output_sve_mov_immediate, aarch64_output_ptrue): New
9736         functions.
9737         (MAX_VECT_LEN): Delete.
9738         (expand_vec_perm_d): Add a vec_flags field.
9739         (emit_unspec2, aarch64_expand_sve_vec_perm): New functions.
9740         (aarch64_evpc_trn, aarch64_evpc_uzp, aarch64_evpc_zip)
9741         (aarch64_evpc_ext): Don't apply a big-endian lane correction
9742         for SVE modes.
9743         (aarch64_evpc_rev): Rename to...
9744         (aarch64_evpc_rev_local): ...this.  Use a predicated operation for SVE.
9745         (aarch64_evpc_rev_global): New function.
9746         (aarch64_evpc_dup): Enforce a 64-byte range for SVE DUP.
9747         (aarch64_evpc_tbl): Use MAX_COMPILE_TIME_VEC_BYTES instead of
9748         MAX_VECT_LEN.
9749         (aarch64_evpc_sve_tbl): New function.
9750         (aarch64_expand_vec_perm_const_1): Update after rename of
9751         aarch64_evpc_rev.  Handle SVE permutes too, trying
9752         aarch64_evpc_rev_global and using aarch64_evpc_sve_tbl rather
9753         than aarch64_evpc_tbl.
9754         (aarch64_vectorize_vec_perm_const): Initialize vec_flags.
9755         (aarch64_sve_cmp_operand_p, aarch64_unspec_cond_code)
9756         (aarch64_gen_unspec_cond, aarch64_expand_sve_vec_cmp_int)
9757         (aarch64_emit_unspec_cond, aarch64_emit_unspec_cond_or)
9758         (aarch64_emit_inverted_unspec_cond, aarch64_expand_sve_vec_cmp_float)
9759         (aarch64_expand_sve_vcond): New functions.
9760         (aarch64_modes_tieable_p): Use aarch64_vector_data_mode_p instead
9761         of aarch64_vector_mode_p.
9762         (aarch64_dwarf_poly_indeterminate_value): New function.
9763         (aarch64_compute_pressure_classes): Likewise.
9764         (aarch64_can_change_mode_class): Likewise.
9765         (TARGET_GET_RAW_RESULT_MODE, TARGET_GET_RAW_ARG_MODE): Redefine.
9766         (TARGET_VECTORIZE_PREFERRED_VECTOR_ALIGNMENT): Likewise.
9767         (TARGET_VECTORIZE_GET_MASK_MODE): Likewise.
9768         (TARGET_DWARF_POLY_INDETERMINATE_VALUE): Likewise.
9769         (TARGET_COMPUTE_PRESSURE_CLASSES): Likewise.
9770         (TARGET_CAN_CHANGE_MODE_CLASS): Likewise.
9771         * config/aarch64/constraints.md (Upa, Upl, Uav, Uat, Usv, Usi, Utr)
9772         (Uty, Dm, vsa, vsc, vsd, vsi, vsn, vsl, vsm, vsA, vsM, vsN): New
9773         constraints.
9774         (Dn, Dl, Dr): Accept const as well as const_vector.
9775         (Dz): Likewise.  Compare against CONST0_RTX.
9776         * config/aarch64/iterators.md: Refer to "Advanced SIMD" instead
9777         of "vector" where appropriate.
9778         (SVE_ALL, SVE_BH, SVE_BHS, SVE_BHSI, SVE_HSDI, SVE_HSF, SVE_SD)
9779         (SVE_SDI, SVE_I, SVE_F, PRED_ALL, PRED_BHS): New mode iterators.
9780         (UNSPEC_SEL, UNSPEC_ANDF, UNSPEC_IORF, UNSPEC_XORF, UNSPEC_COND_LT)
9781         (UNSPEC_COND_LE, UNSPEC_COND_EQ, UNSPEC_COND_NE, UNSPEC_COND_GE)
9782         (UNSPEC_COND_GT, UNSPEC_COND_LO, UNSPEC_COND_LS, UNSPEC_COND_HS)
9783         (UNSPEC_COND_HI, UNSPEC_COND_UO): New unspecs.
9784         (Vetype, VEL, Vel, VWIDE, Vwide, vw, vwcore, V_INT_EQUIV)
9785         (v_int_equiv): Extend to SVE modes.
9786         (Vesize, V128, v128, Vewtype, V_FP_EQUIV, v_fp_equiv, VPRED): New
9787         mode attributes.
9788         (LOGICAL_OR, SVE_INT_UNARY, SVE_FP_UNARY): New code iterators.
9789         (optab): Handle popcount, smin, smax, umin, umax, abs and sqrt.
9790         (logical_nn, lr, sve_int_op, sve_fp_op): New code attributs.
9791         (LOGICALF, OPTAB_PERMUTE, UNPACK, UNPACK_UNSIGNED, SVE_COND_INT_CMP)
9792         (SVE_COND_FP_CMP): New int iterators.
9793         (perm_hilo): Handle the new unpack unspecs.
9794         (optab, logicalf_op, su, perm_optab, cmp_op, imm_con): New int
9795         attributes.
9796         * config/aarch64/predicates.md (aarch64_sve_cnt_immediate)
9797         (aarch64_sve_addvl_addpl_immediate, aarch64_split_add_offset_immediate)
9798         (aarch64_pluslong_or_poly_operand, aarch64_nonmemory_operand)
9799         (aarch64_equality_operator, aarch64_constant_vector_operand)
9800         (aarch64_sve_ld1r_operand, aarch64_sve_ldr_operand): New predicates.
9801         (aarch64_sve_nonimmediate_operand): Likewise.
9802         (aarch64_sve_general_operand): Likewise.
9803         (aarch64_sve_dup_operand, aarch64_sve_arith_immediate): Likewise.
9804         (aarch64_sve_sub_arith_immediate, aarch64_sve_inc_dec_immediate)
9805         (aarch64_sve_logical_immediate, aarch64_sve_mul_immediate): Likewise.
9806         (aarch64_sve_dup_immediate, aarch64_sve_cmp_vsc_immediate): Likewise.
9807         (aarch64_sve_cmp_vsd_immediate, aarch64_sve_index_immediate): Likewise.
9808         (aarch64_sve_float_arith_immediate): Likewise.
9809         (aarch64_sve_float_arith_with_sub_immediate): Likewise.
9810         (aarch64_sve_float_mul_immediate, aarch64_sve_arith_operand): Likewise.
9811         (aarch64_sve_add_operand, aarch64_sve_logical_operand): Likewise.
9812         (aarch64_sve_lshift_operand, aarch64_sve_rshift_operand): Likewise.
9813         (aarch64_sve_mul_operand, aarch64_sve_cmp_vsc_operand): Likewise.
9814         (aarch64_sve_cmp_vsd_operand, aarch64_sve_index_operand): Likewise.
9815         (aarch64_sve_float_arith_operand): Likewise.
9816         (aarch64_sve_float_arith_with_sub_operand): Likewise.
9817         (aarch64_sve_float_mul_operand): Likewise.
9818         (aarch64_sve_vec_perm_operand): Likewise.
9819         (aarch64_pluslong_operand): Include aarch64_sve_addvl_addpl_immediate.
9820         (aarch64_mov_operand): Accept const_poly_int and const_vector.
9821         (aarch64_simd_lshift_imm, aarch64_simd_rshift_imm): Accept const
9822         as well as const_vector.
9823         (aarch64_simd_imm_zero, aarch64_simd_imm_minus_one): Move earlier
9824         in file.  Use CONST0_RTX and CONSTM1_RTX.
9825         (aarch64_simd_or_scalar_imm_zero): Likewise.  Add match_codes.
9826         (aarch64_simd_reg_or_zero): Accept const as well as const_vector.
9827         Use aarch64_simd_imm_zero.
9828         * config/aarch64/aarch64-sve.md: New file.
9829         * config/aarch64/aarch64.md: Include it.
9830         (VG_REGNUM, P0_REGNUM, P7_REGNUM, P15_REGNUM): New register numbers.
9831         (UNSPEC_REV, UNSPEC_LD1_SVE, UNSPEC_ST1_SVE, UNSPEC_MERGE_PTRUE)
9832         (UNSPEC_PTEST_PTRUE, UNSPEC_UNPACKSHI, UNSPEC_UNPACKUHI)
9833         (UNSPEC_UNPACKSLO, UNSPEC_UNPACKULO, UNSPEC_PACK)
9834         (UNSPEC_FLOAT_CONVERT, UNSPEC_WHILE_LO): New unspec constants.
9835         (sve): New attribute.
9836         (enabled): Disable instructions with the sve attribute unless
9837         TARGET_SVE.
9838         (movqi, movhi): Pass CONST_POLY_INT operaneds through
9839         aarch64_expand_mov_immediate.
9840         (*mov<mode>_aarch64, *movsi_aarch64, *movdi_aarch64): Handle
9841         CNT[BHSD] immediates.
9842         (movti): Split CONST_POLY_INT moves into two halves.
9843         (add<mode>3): Accept aarch64_pluslong_or_poly_operand.
9844         Split additions that need a temporary here if the destination
9845         is the stack pointer.
9846         (*add<mode>3_aarch64): Handle ADDVL and ADDPL immediates.
9847         (*add<mode>3_poly_1): New instruction.
9848         (set_clobber_cc): New expander.
9849
9850 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9851
9852         * simplify-rtx.c (simplify_immed_subreg): Add an inner_bytes
9853         parameter and use it instead of GET_MODE_SIZE (innermode).  Use
9854         inner_bytes * BITS_PER_UNIT instead of GET_MODE_BITSIZE (innermode).
9855         Use CEIL (inner_bytes, GET_MODE_UNIT_SIZE (innermode)) instead of
9856         GET_MODE_NUNITS (innermode).  Also add a first_elem parameter.
9857         Change innermode from fixed_mode_size to machine_mode.
9858         (simplify_subreg): Update call accordingly.  Handle a constant-sized
9859         subreg of a variable-length CONST_VECTOR.
9860
9861 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
9862             Alan Hayward  <alan.hayward@arm.com>
9863             David Sherwood  <david.sherwood@arm.com>
9864
9865         * tree-ssa-address.c (mem_ref_valid_without_offset_p): New function.
9866         (add_offset_to_base): New function, split out from...
9867         (create_mem_ref): ...here.  When handling a scale other than 1,
9868         check first whether the address is valid without the offset.
9869         Add it into the base if so, leaving the index and scale as-is.
9870
9871 2018-01-12  Jakub Jelinek  <jakub@redhat.com>
9872
9873         PR c++/83778
9874         * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Call
9875         fold_for_warn before checking if arg2 is INTEGER_CST.
9876
9877 2018-01-12  Segher Boessenkool  <segher@kernel.crashing.org>
9878
9879         * config/rs6000/predicates.md (load_multiple_operation): Delete.
9880         (store_multiple_operation): Delete.
9881         * config/rs6000/rs6000-cpus.def (601): Remove MASK_STRING.
9882         * config/rs6000/rs6000-protos.h (rs6000_output_load_multiple): Delete.
9883         * config/rs6000/rs6000-string.c (expand_block_move): Delete everything
9884         guarded by TARGET_STRING.
9885         (rs6000_output_load_multiple): Delete.
9886         * config/rs6000/rs6000.c (rs6000_option_override_internal): Delete
9887         OPTION_MASK_STRING / TARGET_STRING handling.
9888         (print_operand) <'N', 'O'>: Add comment that these are unused now.
9889         (const rs6000_opt_masks) <"string">: Change mask to 0.
9890         * config/rs6000/rs6000.h (TARGET_DEFAULT): Remove MASK_STRING.
9891         (MASK_STRING): Delete.
9892         * config/rs6000/rs6000.md (*mov<mode>_string): Delete TARGET_STRING
9893         parts.  Simplify.
9894         (load_multiple): Delete.
9895         (*ldmsi8): Delete.
9896         (*ldmsi7): Delete.
9897         (*ldmsi6): Delete.
9898         (*ldmsi5): Delete.
9899         (*ldmsi4): Delete.
9900         (*ldmsi3): Delete.
9901         (store_multiple): Delete.
9902         (*stmsi8): Delete.
9903         (*stmsi7): Delete.
9904         (*stmsi6): Delete.
9905         (*stmsi5): Delete.
9906         (*stmsi4): Delete.
9907         (*stmsi3): Delete.
9908         (movmemsi_8reg): Delete.
9909         (corresponding unnamed define_insn): Delete.
9910         (movmemsi_6reg): Delete.
9911         (corresponding unnamed define_insn): Delete.
9912         (movmemsi_4reg): Delete.
9913         (corresponding unnamed define_insn): Delete.
9914         (movmemsi_2reg): Delete.
9915         (corresponding unnamed define_insn): Delete.
9916         (movmemsi_1reg): Delete.
9917         (corresponding unnamed define_insn): Delete.
9918         * config/rs6000/rs6000.opt (mno-string): New.
9919         (mstring): Replace by deprecation warning stub.
9920         * doc/invoke.texi (RS/6000 and PowerPC Options): Delete -mstring.
9921
9922 2018-01-12  Jakub Jelinek  <jakub@redhat.com>
9923
9924         * regrename.c (regrename_do_replace): If replacing the same
9925         reg multiple times, try to reuse last created gen_raw_REG.
9926
9927         PR debug/81155
9928         * bb-reorder.c (pass_partition_blocks::gate): In lto don't partition
9929         main to workaround a bug in GDB.
9930
9931 2018-01-12  Tom de Vries  <tom@codesourcery.com>
9932
9933         PR target/83737
9934         * config.gcc (nvptx*-*-*): Set use_gcc_stdint=wrap.
9935
9936 2018-01-12  Vladimir Makarov  <vmakarov@redhat.com>
9937
9938         PR rtl-optimization/80481
9939         * ira-color.c (get_cap_member): New function.
9940         (allocnos_conflict_by_live_ranges_p): Use it.
9941         (slot_coalesced_allocno_live_ranges_intersect_p): Add assert.
9942         (setup_slot_coalesced_allocno_live_ranges): Ditto.
9943
9944 2018-01-12  Uros Bizjak  <ubizjak@gmail.com>
9945
9946         PR target/83628
9947         * config/alpha/alpha.md (*saddsi_1): New insn_ans_split pattern.
9948         (*saddl_se_1): Ditto.
9949         (*ssubsi_1): Ditto.
9950         (*ssubl_se_1): Ditto.
9951
9952 2018-01-12  Richard Sandiford  <richard.sandiford@linaro.org>
9953
9954         * tree-predcom.c (aff_combination_dr_offset): Use wi::to_poly_widest
9955         rather than wi::to_widest for DR_INITs.
9956         * tree-vect-data-refs.c (vect_find_same_alignment_drs): Use
9957         wi::to_poly_offset rather than wi::to_offset for DR_INIT.
9958         (vect_analyze_data_ref_accesses): Require both DR_INITs to be
9959         INTEGER_CSTs.
9960         (vect_analyze_group_access_1): Note that here.
9961
9962 2018-01-12  Richard Sandiford  <richard.sandiford@linaro.org>
9963
9964         * tree-vectorizer.c (get_vec_alignment_for_array_type): Handle
9965         polynomial type sizes.
9966
9967 2018-01-12  Richard Sandiford  <richard.sandiford@linaro.org>
9968
9969         * gimplify.c (gimple_add_tmp_var_fn): Allow variables to have a
9970         poly_uint64 size, rather than requiring an unsigned HOST_WIDE_INT size.
9971         (gimple_add_tmp_var): Likewise.
9972
9973 2018-01-12  Martin Liska  <mliska@suse.cz>
9974
9975         * gimple.c (gimple_alloc_counts): Use uint64_t instead of int.
9976         (gimple_alloc_sizes): Likewise.
9977         (dump_gimple_statistics): Use PRIu64 in printf format.
9978         * gimple.h: Change uint64_t to int.
9979
9980 2018-01-12  Martin Liska  <mliska@suse.cz>
9981
9982         * tree-core.h: Use uint64_t instead of int.
9983         * tree.c (tree_node_counts): Likewise.
9984         (tree_node_sizes): Likewise.
9985         (dump_tree_statistics): Use PRIu64 in printf format.
9986
9987 2018-01-12  Martin Liska  <mliska@suse.cz>
9988
9989         * Makefile.in: As qsort_chk is implemented in vec.c, add
9990         vec.o to linkage of gencfn-macros.
9991         * tree.c (build_new_poly_int_cst): Add CXX_MEM_STAT_INFO as it's
9992         passing the info to record_node_allocation_statistics.
9993         (test_vector_cst_patterns): Add CXX_MEM_STAT_INFO to declaration
9994         and pass the info.
9995         * ggc-common.c (struct ggc_usage): Add operator== and use
9996         it in operator< and compare function.
9997         * mem-stats.h (struct mem_usage): Likewise.
9998         * vec.c (struct vec_usage): Remove operator< and compare
9999         function. Can be simply inherited.
10000
10001 2018-01-12  Martin Jambor  <mjambor@suse.cz>
10002
10003         PR target/81616
10004         * params.def: New parameter PARAM_AVOID_FMA_MAX_BITS.
10005         * tree-ssa-math-opts.c: Include domwalk.h.
10006         (convert_mult_to_fma_1): New function.
10007         (fma_transformation_info): New type.
10008         (fma_deferring_state): Likewise.
10009         (cancel_fma_deferring): New function.
10010         (result_of_phi): Likewise.
10011         (last_fma_candidate_feeds_initial_phi): Likewise.
10012         (convert_mult_to_fma): Added deferring logic, split actual
10013         transformation to convert_mult_to_fma_1.
10014         (math_opts_dom_walker): New type.
10015         (math_opts_dom_walker::after_dom_children): New method, body moved
10016         here from pass_optimize_widening_mul::execute, added deferring logic
10017         bits.
10018         (pass_optimize_widening_mul::execute): Moved most of code to
10019         math_opts_dom_walker::after_dom_children.
10020         * config/i386/x86-tune.def (X86_TUNE_AVOID_128FMA_CHAINS): New.
10021         * config/i386/i386.c (ix86_option_override_internal): Added
10022         maybe_setting of PARAM_AVOID_FMA_MAX_BITS.
10023
10024 2018-01-12  Richard Biener  <rguenther@suse.de>
10025
10026         PR debug/83157
10027         * dwarf2out.c (gen_variable_die): Do not reset old_die for
10028         inline instance vars.
10029
10030 2018-01-12  Oleg Endo  <olegendo@gcc.gnu.org>
10031
10032         PR target/81819
10033         * config/rx/rx.c (rx_is_restricted_memory_address):
10034         Handle SUBREG case.
10035
10036 2018-01-12  Richard Biener  <rguenther@suse.de>
10037
10038         PR tree-optimization/80846
10039         * target.def (split_reduction): New target hook.
10040         * targhooks.c (default_split_reduction): New function.
10041         * targhooks.h (default_split_reduction): Declare.
10042         * tree-vect-loop.c (vect_create_epilog_for_reduction): If the
10043         target requests first reduce vectors by combining low and high
10044         parts.
10045         * tree-vect-stmts.c (vect_gen_perm_mask_any): Adjust.
10046         (get_vectype_for_scalar_type_and_size): Export.
10047         * tree-vectorizer.h (get_vectype_for_scalar_type_and_size): Declare.
10048         * doc/tm.texi.in (TARGET_VECTORIZE_SPLIT_REDUCTION): Document.
10049         * doc/tm.texi: Regenerate.
10050         * config/i386/i386.c (ix86_split_reduction): Implement
10051         TARGET_VECTORIZE_SPLIT_REDUCTION.
10052
10053 2018-01-12  Eric Botcazou  <ebotcazou@adacore.com>
10054
10055         PR target/83368
10056         * config/sparc/sparc.h (PIC_OFFSET_TABLE_REGNUM): Set to INVALID_REGNUM
10057         in PIC mode except for TARGET_VXWORKS_RTP.
10058         * config/sparc/sparc.c: Include cfgrtl.h.
10059         (TARGET_INIT_PIC_REG): Define.
10060         (TARGET_USE_PSEUDO_PIC_REG): Likewise.
10061         (sparc_pic_register_p): New predicate.
10062         (sparc_legitimate_address_p): Use it.
10063         (sparc_legitimize_pic_address): Likewise.
10064         (sparc_delegitimize_address): Likewise.
10065         (sparc_mode_dependent_address_p): Likewise.
10066         (gen_load_pcrel_sym): Remove 4th parameter.
10067         (load_got_register): Adjust call to above.  Remove obsolete stuff.
10068         (sparc_expand_prologue): Do not call load_got_register here.
10069         (sparc_flat_expand_prologue): Likewise.
10070         (sparc_output_mi_thunk): Set the pic_offset_table_rtx object.
10071         (sparc_use_pseudo_pic_reg): New function.
10072         (sparc_init_pic_reg): Likewise.
10073         * config/sparc/sparc.md (vxworks_load_got): Set the GOT register.
10074         (builtin_setjmp_receiver): Enable only for TARGET_VXWORKS_RTP.
10075
10076 2018-01-12  Christophe Lyon  <christophe.lyon@linaro.org>
10077
10078         * doc/sourcebuild.texi (Effective-Target Keywords, Other attributes):
10079         Add item for branch_cost.
10080
10081 2018-01-12  Eric Botcazou  <ebotcazou@adacore.com>
10082
10083         PR rtl-optimization/83565
10084         * rtlanal.c (nonzero_bits1): On WORD_REGISTER_OPERATIONS machines, do
10085         not extend the result to a larger mode for rotate operations.
10086         (num_sign_bit_copies1): Likewise.
10087
10088 2018-01-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
10089
10090         PR target/40411
10091         * config/sol2.h (STARTFILE_ARCH_SPEC): Don't use with -shared or
10092         -symbolic.
10093         Use values-Xc.o for -pedantic.
10094         Link with values-xpg4.o for C90, values-xpg6.o otherwise.
10095
10096 2018-01-12  Martin Liska  <mliska@suse.cz>
10097
10098         PR ipa/83054
10099         * ipa-devirt.c (final_warning_record::grow_type_warnings):
10100         New function.
10101         (possible_polymorphic_call_targets): Use it.
10102         (ipa_devirt): Likewise.
10103
10104 2018-01-12  Martin Liska  <mliska@suse.cz>
10105
10106         * profile-count.h (enum profile_quality): Use 0 as invalid
10107         enum value of profile_quality.
10108
10109 2018-01-12  Chung-Ju Wu  <jasonwucj@gmail.com>
10110
10111         * doc/invoke.texi (NDS32 Options): Add -mext-perf, -mext-perf2 and
10112         -mext-string options.
10113
10114 2018-01-12  Richard Biener  <rguenther@suse.de>
10115
10116         * lto-streamer-out.c (DFS::DFS_write_tree_body): Process
10117         DECL_DEBUG_EXPR conditional on DECL_HAS_DEBUG_EXPR_P.
10118         * tree-streamer-in.c (lto_input_ts_decl_common_tree_pointers):
10119         Likewise.
10120         * tree-streamer-out.c (write_ts_decl_common_tree_pointers): Likewise.
10121
10122 2018-01-11  Michael Meissner  <meissner@linux.vnet.ibm.com>
10123
10124         * configure.ac (--with-long-double-format): Add support for the
10125         configuration option to change the default long double format on
10126         PowerPC systems.
10127         * config.gcc (powerpc*-linux*-*): Likewise.
10128         * configure: Regenerate.
10129         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): If long
10130         double is IEEE, define __KC__ and __KF__ to allow floatn.h to be
10131         used without modification.
10132
10133 2018-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
10134
10135         * config/rs6000/rs6000-builtin.def (BU_P7_MISC_X): New #define.
10136         (SPEC_BARRIER): New instantiation of BU_P7_MISC_X.
10137         * config/rs6000/rs6000.c (rs6000_expand_builtin): Handle
10138         MISC_BUILTIN_SPEC_BARRIER.
10139         (rs6000_init_builtins): Likewise.
10140         * config/rs6000/rs6000.md (UNSPECV_SPEC_BARRIER): New UNSPECV
10141         enum value.
10142         (speculation_barrier): New define_insn.
10143         * doc/extend.texi: Document __builtin_speculation_barrier.
10144
10145 2018-01-11  Jakub Jelinek  <jakub@redhat.com>
10146
10147         PR target/83203
10148         * config/i386/i386.c (ix86_expand_vector_init_one_nonzero): If one_var
10149         is 0, for V{8,16}S[IF] and V[48]D[IF]mode use gen_vec_set<mode>_0.
10150         * config/i386/sse.md (VI8_AVX_AVX512F, VI4F_256_512): New mode
10151         iterators.
10152         (ssescalarmodesuffix): Add 512-bit vectors.  Use "d" or "q" for
10153         integral modes instead of "ss" and "sd".
10154         (vec_set<mode>_0): New define_insns for 256-bit and 512-bit
10155         vectors with 32-bit and 64-bit elements.
10156         (vecdupssescalarmodesuffix): New mode attribute.
10157         (vec_dup<mode>): Use it.
10158
10159 2018-01-11  H.J. Lu  <hongjiu.lu@intel.com>
10160
10161         PR target/83330
10162         * config/i386/i386.c (ix86_compute_frame_layout): Align stack
10163         frame if argument is passed on stack.
10164
10165 2018-01-11  Jakub Jelinek  <jakub@redhat.com>
10166
10167         PR target/82682
10168         * ree.c (combine_reaching_defs): Optimize also
10169         reg2=exp; reg1=reg2; reg2=any_extend(reg1); into
10170         reg2=any_extend(exp); reg1=reg2;, formatting fix.
10171
10172 2018-01-11  Jan Hubicka  <hubicka@ucw.cz>
10173
10174         PR middle-end/83189
10175         * gimple-ssa-isolate-paths.c (isolate_path): Fix profile update.
10176
10177 2018-01-11  Jan Hubicka  <hubicka@ucw.cz>
10178
10179         PR middle-end/83718
10180         * tree-inline.c (copy_cfg_body): Adjust num&den for scaling
10181         after they are computed.
10182
10183 2018-01-11  Bin Cheng  <bin.cheng@arm.com>
10184
10185         PR tree-optimization/83695
10186         * gimple-loop-linterchange.cc
10187         (tree_loop_interchange::interchange_loops): Call scev_reset_htab to
10188         reset cached scev information after interchange.
10189         (pass_linterchange::execute): Remove call to scev_reset_htab.
10190
10191 2018-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
10192
10193         * config/arm/arm_neon.h (vfmlal_lane_low_u32, vfmlal_lane_high_u32,
10194         vfmlalq_laneq_low_u32, vfmlalq_lane_low_u32, vfmlal_laneq_low_u32,
10195         vfmlalq_laneq_high_u32, vfmlalq_lane_high_u32, vfmlal_laneq_high_u32,
10196         vfmlsl_lane_low_u32, vfmlsl_lane_high_u32, vfmlslq_laneq_low_u32,
10197         vfmlslq_lane_low_u32, vfmlsl_laneq_low_u32, vfmlslq_laneq_high_u32,
10198         vfmlslq_lane_high_u32, vfmlsl_laneq_high_u32): Define.
10199         * config/arm/arm_neon_builtins.def (vfmal_lane_low,
10200         vfmal_lane_lowv4hf, vfmal_lane_lowv8hf, vfmal_lane_high,
10201         vfmal_lane_highv4hf, vfmal_lane_highv8hf, vfmsl_lane_low,
10202         vfmsl_lane_lowv4hf, vfmsl_lane_lowv8hf, vfmsl_lane_high,
10203         vfmsl_lane_highv4hf, vfmsl_lane_highv8hf): New sets of builtins.
10204         * config/arm/iterators.md (VFMLSEL2, vfmlsel2): New mode attributes.
10205         (V_lane_reg): Likewise.
10206         * config/arm/neon.md (neon_vfm<vfml_op>l_lane_<vfml_half><VCVTF:mode>):
10207         New define_expand.
10208         (neon_vfm<vfml_op>l_lane_<vfml_half><vfmlsel2><mode>): Likewise.
10209         (vfmal_lane_low<mode>_intrinsic,
10210         vfmal_lane_low<vfmlsel2><mode>_intrinsic,
10211         vfmal_lane_high<vfmlsel2><mode>_intrinsic,
10212         vfmal_lane_high<mode>_intrinsic, vfmsl_lane_low<mode>_intrinsic,
10213         vfmsl_lane_low<vfmlsel2><mode>_intrinsic,
10214         vfmsl_lane_high<vfmlsel2><mode>_intrinsic,
10215         vfmsl_lane_high<mode>_intrinsic): New define_insns.
10216
10217 2018-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
10218
10219         * config/arm/arm-cpus.in (fp16fml): New feature.
10220         (ALL_SIMD): Add fp16fml.
10221         (armv8.2-a): Add fp16fml as an option.
10222         (armv8.3-a): Likewise.
10223         (armv8.4-a): Add fp16fml as part of fp16.
10224         * config/arm/arm.h (TARGET_FP16FML): Define.
10225         * config/arm/arm-c.c (arm_cpu_builtins): Define __ARM_FEATURE_FP16_FML
10226         when appropriate.
10227         * config/arm/arm-modes.def (V2HF): Define.
10228         * config/arm/arm_neon.h (vfmlal_low_u32, vfmlsl_low_u32,
10229         vfmlal_high_u32, vfmlsl_high_u32, vfmlalq_low_u32,
10230         vfmlslq_low_u32, vfmlalq_high_u32, vfmlslq_high_u32): Define.
10231         * config/arm/arm_neon_builtins.def (vfmal_low, vfmal_high,
10232         vfmsl_low, vfmsl_high): New set of builtins.
10233         * config/arm/iterators.md (PLUSMINUS): New code iterator.
10234         (vfml_op): New code attribute.
10235         (VFMLHALVES): New int iterator.
10236         (VFML, VFMLSEL): New mode attributes.
10237         (V_reg): Define mapping for V2HF.
10238         (V_hi, V_lo): New mode attributes.
10239         (VF_constraint): Likewise.
10240         (vfml_half, vfml_half_selector): New int attributes.
10241         * config/arm/neon.md (neon_vfm<vfml_op>l_<vfml_half><mode>): New
10242         define_expand.
10243         (vfmal_low<mode>_intrinsic, vfmsl_high<mode>_intrinsic,
10244         vfmal_high<mode>_intrinsic, vfmsl_low<mode>_intrinsic):
10245         New define_insn.
10246         * config/arm/t-arm-elf (v8_fps): Add fp16fml.
10247         * config/arm/t-multilib (v8_2_a_simd_variants): Add fp16fml.
10248         * config/arm/unspecs.md (UNSPEC_VFML_LO, UNSPEC_VFML_HI): New unspecs.
10249         * doc/invoke.texi (ARM Options): Document fp16fml.  Update armv8.4-a
10250         documentation.
10251         * doc/sourcebuild.texi (arm_fp16fml_neon_ok, arm_fp16fml_neon):
10252         Document new effective target and option set.
10253
10254 2018-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
10255
10256         * config/arm/arm-cpus.in (armv8_4): New feature.
10257         (ARMv8_4a): New fgroup.
10258         (armv8.4-a): New arch.
10259         * config/arm/arm-tables.opt: Regenerate.
10260         * config/arm/t-aprofile: Add matching rules for -march=armv8.4-a.
10261         * config/arm/t-arm-elf (all_v8_archs): Add armv8.4-a.
10262         * config/arm/t-multilib (v8_4_a_simd_variants): New variable.
10263         Add matching rules for -march=armv8.4-a and extensions.
10264         * doc/invoke.texi (ARM Options): Document -march=armv8.4-a.
10265
10266 2018-01-11  Oleg Endo  <olegendo@gcc.gnu.org>
10267
10268         PR target/81821
10269         * config/rx/rx.md (BW): New mode attribute.
10270         (sync_lock_test_and_setsi): Add mode suffix to insn output.
10271
10272 2018-01-11  Richard Biener  <rguenther@suse.de>
10273
10274         PR tree-optimization/83435
10275         * graphite.c (canonicalize_loop_form): Ignore fake loop exit edges.
10276         * graphite-scop-detection.c (scop_detection::get_sese): Likewise.
10277         * tree-vrp.c (add_assert_info): Drop TREE_OVERFLOW if they appear.
10278
10279 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
10280             Alan Hayward  <alan.hayward@arm.com>
10281             David Sherwood  <david.sherwood@arm.com>
10282
10283         * config/aarch64/aarch64.c (aarch64_address_info): Add a const_offset
10284         field.
10285         (aarch64_classify_address): Initialize it.  Track polynomial offsets.
10286         (aarch64_print_address_internal): Use it to check for a zero offset.
10287
10288 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
10289             Alan Hayward  <alan.hayward@arm.com>
10290             David Sherwood  <david.sherwood@arm.com>
10291
10292         * config/aarch64/aarch64-modes.def (NUM_POLY_INT_COEFFS): Set to 2.
10293         * config/aarch64/aarch64-protos.h (aarch64_initial_elimination_offset):
10294         Return a poly_int64 rather than a HOST_WIDE_INT.
10295         (aarch64_offset_7bit_signed_scaled_p): Take the offset as a poly_int64
10296         rather than a HOST_WIDE_INT.
10297         * config/aarch64/aarch64.h (aarch64_frame): Protect with
10298         HAVE_POLY_INT_H rather than HOST_WIDE_INT.  Change locals_offset,
10299         hard_fp_offset, frame_size, initial_adjust, callee_offset and
10300         final_offset from HOST_WIDE_INT to poly_int64.
10301         * config/aarch64/aarch64-builtins.c (aarch64_simd_expand_args): Use
10302         to_constant when getting the number of units in an Advanced SIMD
10303         mode.
10304         (aarch64_builtin_vectorized_function): Check for a constant number
10305         of units.
10306         * config/aarch64/aarch64-simd.md (mov<mode>): Handle polynomial
10307         GET_MODE_SIZE.
10308         (aarch64_ld<VSTRUCT:nregs>_lane<VALLDIF:mode>): Use the nunits
10309         attribute instead of GET_MODE_NUNITS.
10310         * config/aarch64/aarch64.c (aarch64_hard_regno_nregs)
10311         (aarch64_class_max_nregs): Use the constant_lowest_bound of the
10312         GET_MODE_SIZE for fixed-size registers.
10313         (aarch64_const_vec_all_same_in_range_p): Use const_vec_duplicate_p.
10314         (aarch64_hard_regno_call_part_clobbered, aarch64_classify_index)
10315         (aarch64_mode_valid_for_sched_fusion_p, aarch64_classify_address)
10316         (aarch64_legitimize_address_displacement, aarch64_secondary_reload)
10317         (aarch64_print_operand, aarch64_print_address_internal)
10318         (aarch64_address_cost, aarch64_rtx_costs, aarch64_register_move_cost)
10319         (aarch64_short_vector_p, aapcs_vfp_sub_candidate)
10320         (aarch64_simd_attr_length_rglist, aarch64_operands_ok_for_ldpstp):
10321         Handle polynomial GET_MODE_SIZE.
10322         (aarch64_hard_regno_caller_save_mode): Likewise.  Return modes
10323         wider than SImode without modification.
10324         (tls_symbolic_operand_type): Use strip_offset instead of split_const.
10325         (aarch64_pass_by_reference, aarch64_layout_arg, aarch64_pad_reg_upward)
10326         (aarch64_gimplify_va_arg_expr): Assert that we don't yet handle
10327         passing and returning SVE modes.
10328         (aarch64_function_value, aarch64_layout_arg): Use gen_int_mode
10329         rather than GEN_INT.
10330         (aarch64_emit_probe_stack_range): Take the size as a poly_int64
10331         rather than a HOST_WIDE_INT, but call sorry if it isn't constant.
10332         (aarch64_allocate_and_probe_stack_space): Likewise.
10333         (aarch64_layout_frame): Cope with polynomial offsets.
10334         (aarch64_save_callee_saves, aarch64_restore_callee_saves): Take the
10335         start_offset as a poly_int64 rather than a HOST_WIDE_INT.  Track
10336         polynomial offsets.
10337         (offset_9bit_signed_unscaled_p, offset_12bit_unsigned_scaled_p)
10338         (aarch64_offset_7bit_signed_scaled_p): Take the offset as a
10339         poly_int64 rather than a HOST_WIDE_INT.
10340         (aarch64_get_separate_components, aarch64_process_components)
10341         (aarch64_expand_prologue, aarch64_expand_epilogue)
10342         (aarch64_use_return_insn_p): Handle polynomial frame offsets.
10343         (aarch64_anchor_offset): New function, split out from...
10344         (aarch64_legitimize_address): ...here.
10345         (aarch64_builtin_vectorization_cost): Handle polynomial
10346         TYPE_VECTOR_SUBPARTS.
10347         (aarch64_simd_check_vect_par_cnst_half): Handle polynomial
10348         GET_MODE_NUNITS.
10349         (aarch64_simd_make_constant, aarch64_expand_vector_init): Get the
10350         number of elements from the PARALLEL rather than the mode.
10351         (aarch64_shift_truncation_mask): Use GET_MODE_UNIT_BITSIZE
10352         rather than GET_MODE_BITSIZE.
10353         (aarch64_evpc_trn, aarch64_evpc_uzp, aarch64_evpc_ext)
10354         (aarch64_evpc_rev, aarch64_evpc_dup, aarch64_evpc_zip)
10355         (aarch64_expand_vec_perm_const_1): Handle polynomial
10356         d->perm.length () and d->perm elements.
10357         (aarch64_evpc_tbl): Likewise.  Use nelt rather than GET_MODE_NUNITS.
10358         Apply to_constant to d->perm elements.
10359         (aarch64_simd_valid_immediate, aarch64_vec_fpconst_pow_of_2): Handle
10360         polynomial CONST_VECTOR_NUNITS.
10361         (aarch64_move_pointer): Take amount as a poly_int64 rather
10362         than an int.
10363         (aarch64_progress_pointer): Avoid temporary variable.
10364         * config/aarch64/aarch64.md (aarch64_<crc_variant>): Use
10365         the mode attribute instead of GET_MODE.
10366
10367 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
10368             Alan Hayward  <alan.hayward@arm.com>
10369             David Sherwood  <david.sherwood@arm.com>
10370
10371         * config/aarch64/aarch64.c (aarch64_force_temporary): Assert that
10372         x exists before using it.
10373         (aarch64_add_constant_internal): Rename to...
10374         (aarch64_add_offset_1): ...this.  Replace regnum with separate
10375         src and dest rtxes.  Handle the case in which they're different,
10376         including when the offset is zero.  Replace scratchreg with an rtx.
10377         Use 2 additions if there is no spare register into which we can
10378         move a 16-bit constant.
10379         (aarch64_add_constant): Delete.
10380         (aarch64_add_offset): Replace reg with separate src and dest
10381         rtxes.  Take a poly_int64 offset instead of a HOST_WIDE_INT.
10382         Use aarch64_add_offset_1.
10383         (aarch64_add_sp, aarch64_sub_sp): Take the scratch register as
10384         an rtx rather than an int.  Take the delta as a poly_int64
10385         rather than a HOST_WIDE_INT.  Use aarch64_add_offset.
10386         (aarch64_expand_mov_immediate): Update uses of aarch64_add_offset.
10387         (aarch64_expand_prologue): Update calls to aarch64_sub_sp,
10388         aarch64_allocate_and_probe_stack_space and aarch64_add_offset.
10389         (aarch64_expand_epilogue): Update calls to aarch64_add_offset
10390         and aarch64_add_sp.
10391         (aarch64_output_mi_thunk): Use aarch64_add_offset rather than
10392         aarch64_add_constant.
10393
10394 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
10395
10396         * config/aarch64/aarch64.c (aarch64_reinterpret_float_as_int):
10397         Use scalar_float_mode.
10398
10399 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
10400
10401         * config/aarch64/aarch64-simd.md
10402         (aarch64_fml<f16mac1>l<f16quad>_low<mode>): Avoid GET_MODE_NUNITS.
10403         (aarch64_fml<f16mac1>l<f16quad>_high<mode>): Likewise.
10404         (aarch64_fml<f16mac1>l_lane_lowv2sf): Likewise.
10405         (aarch64_fml<f16mac1>l_lane_highv2sf): Likewise.
10406         (aarch64_fml<f16mac1>lq_laneq_lowv4sf): Likewise.
10407         (aarch64_fml<f16mac1>lq_laneq_highv4sf): Likewise.
10408         (aarch64_fml<f16mac1>l_laneq_lowv2sf): Likewise.
10409         (aarch64_fml<f16mac1>l_laneq_highv2sf): Likewise.
10410         (aarch64_fml<f16mac1>lq_lane_lowv4sf): Likewise.
10411         (aarch64_fml<f16mac1>lq_lane_highv4sf): Likewise.
10412
10413 2018-01-11  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
10414
10415         PR target/83514
10416         * config/arm/arm.c (arm_declare_function_name): Set arch_to_print if
10417         targ_options->x_arm_arch_string is non NULL.
10418
10419 2018-01-11  Tamar Christina  <tamar.christina@arm.com>
10420
10421         * config/aarch64/aarch64.h
10422         (AARCH64_FL_FOR_ARCH8_4): Add  AARCH64_FL_DOTPROD.
10423
10424 2018-01-11  Sudakshina Das  <sudi.das@arm.com>
10425
10426         PR target/82096
10427         * expmed.c (emit_store_flag_force): Swap if const op0
10428         and change VOIDmode to mode of op0.
10429
10430 2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
10431
10432         PR rtl-optimization/83761
10433         * caller-save.c (replace_reg_with_saved_mem): Pass bits rather
10434         than bytes to mode_for_size.
10435
10436 2018-01-10  Jan Hubicka  <hubicka@ucw.cz>
10437
10438         PR middle-end/83189
10439         * gfortran.fortran-torture/compile/pr83189.f90: New testcase.
10440         * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Handle zero
10441         profile.
10442
10443 2018-01-10  Jan Hubicka  <hubicka@ucw.cz>
10444
10445         PR middle-end/83575
10446         * cfgrtl.c (rtl_verify_edges): Only verify fixability of partition
10447         when in layout mode.
10448         (cfg_layout_finalize): Do not verify cfg before we are out of layout.
10449         * cfgcleanup.c (try_optimize_cfg): Only verify flow info when doing
10450         partition fixup.
10451
10452 2018-01-10  Michael Collison  <michael.collison@arm.com>
10453
10454         * config/aarch64/aarch64-modes.def (V2HF): New VECTOR_MODE.
10455         * config/aarch64/aarch64-option-extension.def: Add
10456         AARCH64_OPT_EXTENSION of 'fp16fml'.
10457         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
10458         (__ARM_FEATURE_FP16_FML): Define if TARGET_F16FML is true.
10459         * config/aarch64/predicates.md (aarch64_lane_imm3): New predicate.
10460         * config/aarch64/constraints.md (Ui7): New constraint.
10461         * config/aarch64/iterators.md (VFMLA_W): New mode iterator.
10462         (VFMLA_SEL_W): Ditto.
10463         (f16quad): Ditto.
10464         (f16mac1): Ditto.
10465         (VFMLA16_LOW): New int iterator.
10466         (VFMLA16_HIGH): Ditto.
10467         (UNSPEC_FMLAL): New unspec.
10468         (UNSPEC_FMLSL): Ditto.
10469         (UNSPEC_FMLAL2): Ditto.
10470         (UNSPEC_FMLSL2): Ditto.
10471         (f16mac): New code attribute.
10472         * config/aarch64/aarch64-simd-builtins.def
10473         (aarch64_fmlal_lowv2sf): Ditto.
10474         (aarch64_fmlsl_lowv2sf): Ditto.
10475         (aarch64_fmlalq_lowv4sf): Ditto.
10476         (aarch64_fmlslq_lowv4sf): Ditto.
10477         (aarch64_fmlal_highv2sf): Ditto.
10478         (aarch64_fmlsl_highv2sf): Ditto.
10479         (aarch64_fmlalq_highv4sf): Ditto.
10480         (aarch64_fmlslq_highv4sf): Ditto.
10481         (aarch64_fmlal_lane_lowv2sf): Ditto.
10482         (aarch64_fmlsl_lane_lowv2sf): Ditto.
10483         (aarch64_fmlal_laneq_lowv2sf): Ditto.
10484         (aarch64_fmlsl_laneq_lowv2sf): Ditto.
10485         (aarch64_fmlalq_lane_lowv4sf): Ditto.
10486         (aarch64_fmlsl_lane_lowv4sf): Ditto.
10487         (aarch64_fmlalq_laneq_lowv4sf): Ditto.
10488         (aarch64_fmlsl_laneq_lowv4sf): Ditto.
10489         (aarch64_fmlal_lane_highv2sf): Ditto.
10490         (aarch64_fmlsl_lane_highv2sf): Ditto.
10491         (aarch64_fmlal_laneq_highv2sf): Ditto.
10492         (aarch64_fmlsl_laneq_highv2sf): Ditto.
10493         (aarch64_fmlalq_lane_highv4sf): Ditto.
10494         (aarch64_fmlsl_lane_highv4sf): Ditto.
10495         (aarch64_fmlalq_laneq_highv4sf): Ditto.
10496         (aarch64_fmlsl_laneq_highv4sf): Ditto.
10497         * config/aarch64/aarch64-simd.md:
10498         (aarch64_fml<f16mac1>l<f16quad>_low<mode>): New pattern.
10499         (aarch64_fml<f16mac1>l<f16quad>_high<mode>): Ditto.
10500         (aarch64_simd_fml<f16mac1>l<f16quad>_low<mode>): Ditto.
10501         (aarch64_simd_fml<f16mac1>l<f16quad>_high<mode>): Ditto.
10502         (aarch64_fml<f16mac1>l_lane_lowv2sf): Ditto.
10503         (aarch64_fml<f16mac1>l_lane_highv2sf): Ditto.
10504         (aarch64_simd_fml<f16mac>l_lane_lowv2sf): Ditto.
10505         (aarch64_simd_fml<f16mac>l_lane_highv2sf): Ditto.
10506         (aarch64_fml<f16mac1>lq_laneq_lowv4sf): Ditto.
10507         (aarch64_fml<f16mac1>lq_laneq_highv4sf): Ditto.
10508         (aarch64_simd_fml<f16mac>lq_laneq_lowv4sf): Ditto.
10509         (aarch64_simd_fml<f16mac>lq_laneq_highv4sf): Ditto.
10510         (aarch64_fml<f16mac1>l_laneq_lowv2sf): Ditto.
10511         (aarch64_fml<f16mac1>l_laneq_highv2sf): Ditto.
10512         (aarch64_simd_fml<f16mac>l_laneq_lowv2sf): Ditto.
10513         (aarch64_simd_fml<f16mac>l_laneq_highv2sf): Ditto.
10514         (aarch64_fml<f16mac1>lq_lane_lowv4sf): Ditto.
10515         (aarch64_fml<f16mac1>lq_lane_highv4sf): Ditto.
10516         (aarch64_simd_fml<f16mac>lq_lane_lowv4sf): Ditto.
10517         (aarch64_simd_fml<f16mac>lq_lane_highv4sf): Ditto.
10518         * config/aarch64/arm_neon.h (vfmlal_low_u32): New intrinsic.
10519         (vfmlsl_low_u32): Ditto.
10520         (vfmlalq_low_u32): Ditto.
10521         (vfmlslq_low_u32): Ditto.
10522         (vfmlal_high_u32): Ditto.
10523         (vfmlsl_high_u32): Ditto.
10524         (vfmlalq_high_u32): Ditto.
10525         (vfmlslq_high_u32): Ditto.
10526         (vfmlal_lane_low_u32): Ditto.
10527         (vfmlsl_lane_low_u32): Ditto.
10528         (vfmlal_laneq_low_u32): Ditto.
10529         (vfmlsl_laneq_low_u32): Ditto.
10530         (vfmlalq_lane_low_u32): Ditto.
10531         (vfmlslq_lane_low_u32): Ditto.
10532         (vfmlalq_laneq_low_u32): Ditto.
10533         (vfmlslq_laneq_low_u32): Ditto.
10534         (vfmlal_lane_high_u32): Ditto.
10535         (vfmlsl_lane_high_u32): Ditto.
10536         (vfmlal_laneq_high_u32): Ditto.
10537         (vfmlsl_laneq_high_u32): Ditto.
10538         (vfmlalq_lane_high_u32): Ditto.
10539         (vfmlslq_lane_high_u32): Ditto.
10540         (vfmlalq_laneq_high_u32): Ditto.
10541         (vfmlslq_laneq_high_u32): Ditto.
10542         * config/aarch64/aarch64.h (AARCH64_FL_F16SML): New flag.
10543         (AARCH64_FL_FOR_ARCH8_4): New.
10544         (AARCH64_ISA_F16FML): New ISA flag.
10545         (TARGET_F16FML): New feature flag for fp16fml.
10546         (doc/invoke.texi): Document new fp16fml option.
10547
10548 2018-01-10  Michael Collison  <michael.collison@arm.com>
10549
10550         * config/aarch64/aarch64-builtins.c:
10551         (aarch64_types_ternopu_imm_qualifiers, TYPES_TERNOPUI): New.
10552         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
10553         (__ARM_FEATURE_SHA3): Define if TARGET_SHA3 is true.
10554         * config/aarch64/aarch64.h (AARCH64_FL_SHA3): New flags.
10555         (AARCH64_ISA_SHA3): New ISA flag.
10556         (TARGET_SHA3): New feature flag for sha3.
10557         * config/aarch64/iterators.md (sha512_op): New int attribute.
10558         (CRYPTO_SHA512): New int iterator.
10559         (UNSPEC_SHA512H): New unspec.
10560         (UNSPEC_SHA512H2): Ditto.
10561         (UNSPEC_SHA512SU0): Ditto.
10562         (UNSPEC_SHA512SU1): Ditto.
10563         * config/aarch64/aarch64-simd-builtins.def
10564         (aarch64_crypto_sha512hqv2di): New builtin.
10565         (aarch64_crypto_sha512h2qv2di): Ditto.
10566         (aarch64_crypto_sha512su0qv2di): Ditto.
10567         (aarch64_crypto_sha512su1qv2di): Ditto.
10568         (aarch64_eor3qv8hi): Ditto.
10569         (aarch64_rax1qv2di): Ditto.
10570         (aarch64_xarqv2di): Ditto.
10571         (aarch64_bcaxqv8hi): Ditto.
10572         * config/aarch64/aarch64-simd.md:
10573         (aarch64_crypto_sha512h<sha512_op>qv2di): New pattern.
10574         (aarch64_crypto_sha512su0qv2di): Ditto.
10575         (aarch64_crypto_sha512su1qv2di): Ditto.
10576         (aarch64_eor3qv8hi): Ditto.
10577         (aarch64_rax1qv2di): Ditto.
10578         (aarch64_xarqv2di): Ditto.
10579         (aarch64_bcaxqv8hi): Ditto.
10580         * config/aarch64/arm_neon.h (vsha512hq_u64): New intrinsic.
10581         (vsha512h2q_u64): Ditto.
10582         (vsha512su0q_u64): Ditto.
10583         (vsha512su1q_u64): Ditto.
10584         (veor3q_u16): Ditto.
10585         (vrax1q_u64): Ditto.
10586         (vxarq_u64): Ditto.
10587         (vbcaxq_u16): Ditto.
10588         * config/arm/types.md (crypto_sha512): New type attribute.
10589         (crypto_sha3): Ditto.
10590         (doc/invoke.texi): Document new sha3 option.
10591
10592 2018-01-10  Michael Collison  <michael.collison@arm.com>
10593
10594         * config/aarch64/aarch64-builtins.c:
10595         (aarch64_types_quadopu_imm_qualifiers, TYPES_QUADOPUI): New.
10596         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
10597         (__ARM_FEATURE_SM3): Define if TARGET_SM4 is true.
10598         (__ARM_FEATURE_SM4): Define if TARGET_SM4 is true.
10599         * config/aarch64/aarch64.h (AARCH64_FL_SM4): New flags.
10600         (AARCH64_ISA_SM4): New ISA flag.
10601         (TARGET_SM4): New feature flag for sm4.
10602         * config/aarch64/aarch64-simd-builtins.def
10603         (aarch64_sm3ss1qv4si): Ditto.
10604         (aarch64_sm3tt1aq4si): Ditto.
10605         (aarch64_sm3tt1bq4si): Ditto.
10606         (aarch64_sm3tt2aq4si): Ditto.
10607         (aarch64_sm3tt2bq4si): Ditto.
10608         (aarch64_sm3partw1qv4si): Ditto.
10609         (aarch64_sm3partw2qv4si): Ditto.
10610         (aarch64_sm4eqv4si): Ditto.
10611         (aarch64_sm4ekeyqv4si): Ditto.
10612         * config/aarch64/aarch64-simd.md:
10613         (aarch64_sm3ss1qv4si): Ditto.
10614         (aarch64_sm3tt<sm3tt_op>qv4si): Ditto.
10615         (aarch64_sm3partw<sm3part_op>qv4si): Ditto.
10616         (aarch64_sm4eqv4si): Ditto.
10617         (aarch64_sm4ekeyqv4si): Ditto.
10618         * config/aarch64/iterators.md (sm3tt_op): New int iterator.
10619         (sm3part_op): Ditto.
10620         (CRYPTO_SM3TT): Ditto.
10621         (CRYPTO_SM3PART): Ditto.
10622         (UNSPEC_SM3SS1): New unspec.
10623         (UNSPEC_SM3TT1A): Ditto.
10624         (UNSPEC_SM3TT1B): Ditto.
10625         (UNSPEC_SM3TT2A): Ditto.
10626         (UNSPEC_SM3TT2B): Ditto.
10627         (UNSPEC_SM3PARTW1): Ditto.
10628         (UNSPEC_SM3PARTW2): Ditto.
10629         (UNSPEC_SM4E): Ditto.
10630         (UNSPEC_SM4EKEY): Ditto.
10631         * config/aarch64/constraints.md (Ui2): New constraint.
10632         * config/aarch64/predicates.md (aarch64_imm2): New predicate.
10633         * config/arm/types.md (crypto_sm3): New type attribute.
10634         (crypto_sm4): Ditto.
10635         * config/aarch64/arm_neon.h (vsm3ss1q_u32): New intrinsic.
10636         (vsm3tt1aq_u32): Ditto.
10637         (vsm3tt1bq_u32): Ditto.
10638         (vsm3tt2aq_u32): Ditto.
10639         (vsm3tt2bq_u32): Ditto.
10640         (vsm3partw1q_u32): Ditto.
10641         (vsm3partw2q_u32): Ditto.
10642         (vsm4eq_u32): Ditto.
10643         (vsm4ekeyq_u32): Ditto.
10644         (doc/invoke.texi): Document new sm4 option.
10645
10646 2018-01-10  Michael Collison  <michael.collison@arm.com>
10647
10648         * config/aarch64/aarch64-arches.def (armv8.4-a): New architecture.
10649         * config/aarch64/aarch64.h (AARCH64_ISA_V8_4): New ISA flag.
10650         (AARCH64_FL_FOR_ARCH8_4): New.
10651         (AARCH64_FL_V8_4): New flag.
10652         (doc/invoke.texi): Document new armv8.4-a option.
10653
10654 2018-01-10  Michael Collison  <michael.collison@arm.com>
10655
10656         * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
10657         (__ARM_FEATURE_AES): Define if TARGET_AES is true.
10658         (__ARM_FEATURE_SHA2): Define if TARGET_SHA2 is true.
10659         * config/aarch64/aarch64-option-extension.def: Add
10660         AARCH64_OPT_EXTENSION of 'sha2'.
10661         (aes): Add AARCH64_OPT_EXTENSION of 'aes'.
10662         (crypto): Disable sha2 and aes if crypto disabled.
10663         (crypto): Enable aes and sha2 if enabled.
10664         (simd): Disable sha2 and aes if simd disabled.
10665         * config/aarch64/aarch64.h (AARCH64_FL_AES, AARCH64_FL_SHA2):
10666         New flags.
10667         (AARCH64_ISA_AES, AARCH64_ISA_SHA2): New ISA flags.
10668         (TARGET_SHA2): New feature flag for sha2.
10669         (TARGET_AES): New feature flag for aes.
10670         * config/aarch64/aarch64-simd.md:
10671         (aarch64_crypto_aes<aes_op>v16qi): Make pattern
10672         conditional on TARGET_AES.
10673         (aarch64_crypto_aes<aesmc_op>v16qi): Ditto.
10674         (aarch64_crypto_sha1hsi): Make pattern conditional
10675         on TARGET_SHA2.
10676         (aarch64_crypto_sha1hv4si): Ditto.
10677         (aarch64_be_crypto_sha1hv4si): Ditto.
10678         (aarch64_crypto_sha1su1v4si): Ditto.
10679         (aarch64_crypto_sha1<sha1_op>v4si): Ditto.
10680         (aarch64_crypto_sha1su0v4si): Ditto.
10681         (aarch64_crypto_sha256h<sha256_op>v4si): Ditto.
10682         (aarch64_crypto_sha256su0v4si): Ditto.
10683         (aarch64_crypto_sha256su1v4si): Ditto.
10684         (doc/invoke.texi): Document new aes and sha2 options.
10685
10686 2018-01-10  Martin Sebor  <msebor@redhat.com>
10687
10688         PR tree-optimization/83781
10689         * gimple-fold.c (get_range_strlen): Avoid treating arrays of pointers
10690         as string arrays.
10691
10692 2018-01-11  Martin Sebor  <msebor@gmail.com>
10693             Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
10694
10695         PR tree-optimization/83501
10696         PR tree-optimization/81703
10697
10698         * tree-ssa-strlen.c (get_string_cst): Rename...
10699         (get_string_len): ...to this.  Handle global constants.
10700         (handle_char_store): Adjust.
10701
10702 2018-01-10  Kito Cheng  <kito.cheng@gmail.com>
10703             Jim Wilson  <jimw@sifive.com>
10704
10705         * config/riscv/riscv-protos.h (riscv_output_return): New.
10706         * config/riscv/riscv.c (struct machine_function): New naked_p field.
10707         (riscv_attribute_table, riscv_output_return),
10708         (riscv_handle_fndecl_attribute, riscv_naked_function_p),
10709         (riscv_allocate_stack_slots_for_args, riscv_warn_func_return): New.
10710         (riscv_compute_frame_info): Only compute frame->mask if not a naked
10711         function.
10712         (riscv_expand_prologue): Add early return for naked function.
10713         (riscv_expand_epilogue): Likewise.
10714         (riscv_function_ok_for_sibcall): Return false for naked function.
10715         (riscv_set_current_function): New.
10716         (TARGET_SET_CURRENT_FUNCTION, TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS),
10717         (TARGET_ATTRIBUTE_TABLE, TARGET_WARN_FUNC_RETURN): New.
10718         * config/riscv/riscv.md (simple_return): Call riscv_output_return.
10719         * doc/extend.texi (RISC-V Function Attributes): New.
10720
10721 2018-01-10  Michael Meissner  <meissner@linux.vnet.ibm.com>
10722
10723         * config/rs6000/rs6000.c (is_complex_IBM_long_double): Explicitly
10724         check for 128-bit long double before checking TCmode.
10725         * config/rs6000/rs6000.h (FLOAT128_IEEE_P): Explicitly check for
10726         128-bit long doubles before checking TFmode or TCmode.
10727         (FLOAT128_IBM_P): Likewise.
10728
10729 2018-01-10  Martin Sebor  <msebor@redhat.com>
10730
10731         PR tree-optimization/83671
10732         * builtins.c (c_strlen): Unconditionally return zero for the empty
10733         string.
10734         Use -Warray-bounds for warnings.
10735         * gimple-fold.c (get_range_strlen): Handle non-constant lengths
10736         for non-constant array indices with COMPONENT_REF, arrays of
10737         arrays, and pointers to arrays.
10738         (gimple_fold_builtin_strlen): Determine and set length range for
10739         non-constant character arrays.
10740
10741 2018-01-10  Aldy Hernandez  <aldyh@redhat.com>
10742
10743         PR middle-end/81897
10744         * tree-ssa-uninit.c (convert_control_dep_chain_into_preds): Skip
10745         empty blocks.
10746
10747 2018-01-10  Eric Botcazou  <ebotcazou@adacore.com>
10748
10749         * dwarf2out.c (dwarf2out_var_location): Do not pass NULL to fprintf.
10750
10751 2018-01-10  Peter Bergner  <bergner@vnet.ibm.com>
10752
10753         PR target/83399
10754         * config/rs6000/rs6000.c (print_operand) <'y'>: Use
10755         VECTOR_MEM_ALTIVEC_OR_VSX_P.
10756         * config/rs6000/vsx.md (*vsx_le_perm_load_<mode> for VSX_D): Use
10757         indexed_or_indirect_operand predicate.
10758         (*vsx_le_perm_load_<mode> for VSX_W): Likewise.
10759         (*vsx_le_perm_load_v8hi): Likewise.
10760         (*vsx_le_perm_load_v16qi): Likewise.
10761         (*vsx_le_perm_store_<mode> for VSX_D): Likewise.
10762         (*vsx_le_perm_store_<mode> for VSX_W): Likewise.
10763         (*vsx_le_perm_store_v8hi): Likewise.
10764         (*vsx_le_perm_store_v16qi): Likewise.
10765         (eight unnamed splitters): Likewise.
10766
10767 2018-01-10  Peter Bergner  <bergner@vnet.ibm.com>
10768
10769         * config/rs6000/x86intrin.h: Change #warning to #error. Update message.
10770         * config/rs6000/emmintrin.h: Likewise.
10771         * config/rs6000/mmintrin.h: Likewise.
10772         * config/rs6000/xmmintrin.h: Likewise.
10773
10774 2018-01-10  David Malcolm  <dmalcolm@redhat.com>
10775
10776         PR c++/43486
10777         * tree-core.h: Document EXPR_LOCATION_WRAPPER_P's usage of
10778         "public_flag".
10779         * tree.c (tree_nop_conversion): Return true for location wrapper
10780         nodes.
10781         (maybe_wrap_with_location): New function.
10782         (selftest::check_strip_nops): New function.
10783         (selftest::test_location_wrappers): New function.
10784         (selftest::tree_c_tests): Call it.
10785         * tree.h (STRIP_ANY_LOCATION_WRAPPER): New macro.
10786         (maybe_wrap_with_location): New decl.
10787         (EXPR_LOCATION_WRAPPER_P): New macro.
10788         (location_wrapper_p): New inline function.
10789         (tree_strip_any_location_wrapper): New inline function.
10790
10791 2018-01-10  H.J. Lu  <hongjiu.lu@intel.com>
10792
10793         PR target/83735
10794         * config/i386/i386.c (ix86_compute_frame_layout): Always adjust
10795         stack_realign_offset for the largest alignment of stack slot
10796         actually used.
10797         (ix86_find_max_used_stack_alignment): New function.
10798         (ix86_finalize_stack_frame_flags): Use it.  Set
10799         max_used_stack_alignment if we don't realign stack.
10800         * config/i386/i386.h (machine_function): Add
10801         max_used_stack_alignment.
10802
10803 2018-01-10  Christophe Lyon  <christophe.lyon@linaro.org>
10804
10805         * config/arm/arm.opt (-mbranch-cost): New option.
10806         * config/arm/arm.h (BRANCH_COST): Take arm_branch_cost into
10807         account.
10808
10809 2018-01-10  Segher Boessenkool  <segher@kernel.crashing.org>
10810
10811         PR target/83629
10812         * config/rs6000/rs6000.md (load_toc_v4_PIC_2, load_toc_v4_PIC_3b,
10813         load_toc_v4_PIC_3c): Wrap const term in CONST RTL.
10814
10815 2018-01-10  Richard Biener  <rguenther@suse.de>
10816
10817         PR debug/83765
10818         * dwarf2out.c (gen_subprogram_die): Hoist old_die && declaration
10819         early out so it also covers the case where we have a non-NULL
10820         origin.
10821
10822 2018-01-10  Richard Sandiford  <richard.sandiford@linaro.org>
10823
10824         PR tree-optimization/83753
10825         * tree-vect-stmts.c (get_group_load_store_type): Use VMAT_CONTIGUOUS
10826         for non-strided grouped accesses if the number of elements is 1.
10827
10828 2018-01-10  Jan Hubicka  <hubicka@ucw.cz>
10829
10830         PR target/81616
10831         * i386.c (ix86_vectorize_builtin_gather): Check TARGET_USE_GATHER.
10832         * i386.h (TARGET_USE_GATHER): Define.
10833         * x86-tune.def (X86_TUNE_USE_GATHER): New.
10834
10835 2018-01-10  Martin Liska  <mliska@suse.cz>
10836
10837         PR bootstrap/82831
10838         * basic-block.h (CLEANUP_NO_PARTITIONING): New define.
10839         * bb-reorder.c (pass_reorder_blocks::execute): Do not clean up
10840         partitioning.
10841         * cfgcleanup.c (try_optimize_cfg): Fix up partitioning if
10842         CLEANUP_NO_PARTITIONING is not set.
10843
10844 2018-01-10  Richard Sandiford  <richard.sandiford@linaro.org>
10845
10846         * doc/rtl.texi: Remove documentation of (const ...) wrappers
10847         for vectors, as a partial revert of r254296.
10848         * rtl.h (const_vec_p): Delete.
10849         (const_vec_duplicate_p): Don't test for vector CONSTs.
10850         (unwrap_const_vec_duplicate, const_vec_series_p): Likewise.
10851         * expmed.c (make_tree): Likewise.
10852
10853         Revert:
10854         * common.md (E, F): Use CONSTANT_P instead of checking for
10855         CONST_VECTOR.
10856         * emit-rtl.c (gen_lowpart_common): Use const_vec_p instead of
10857         checking for CONST_VECTOR.
10858
10859 2018-01-09  Jan Hubicka  <hubicka@ucw.cz>
10860
10861         PR middle-end/83575
10862         * predict.c (force_edge_cold): Handle in more sane way edges
10863         with no prediction.
10864
10865 2018-01-09  Carl Love  <cel@us.ibm.com>
10866
10867         * config/rs6002/altivec.md (p8_vmrgow): Add support for V2DI, V2DF,
10868         V4SI, V4SF types.
10869         (p8_vmrgew): Add support for V2DI, V2DF, V4SF types.
10870         * config/rs6000/rs6000-builtin.def: Add definitions for FLOAT2_V2DF,
10871         VMRGEW_V2DI, VMRGEW_V2DF, VMRGEW_V4SF, VMRGOW_V4SI, VMRGOW_V4SF,
10872         VMRGOW_V2DI, VMRGOW_V2DF.  Remove definition for VMRGOW.
10873         * config/rs6000/rs6000-c.c (VSX_BUILTIN_VEC_FLOAT2,
10874         P8V_BUILTIN_VEC_VMRGEW, P8V_BUILTIN_VEC_VMRGOW):  Add definitions.
10875         * config/rs6000/rs6000-protos.h: Add extern defition for
10876         rs6000_generate_float2_double_code.
10877         * config/rs6000/rs6000.c (rs6000_generate_float2_double_code): Add
10878         function.
10879         * config/rs6000/vsx.md (vsx_xvcdpsp): Add define_insn.
10880         (float2_v2df): Add define_expand.
10881
10882 2018-01-09  Uros Bizjak  <ubizjak@gmail.com>
10883
10884         PR target/83628
10885         * combine.c (force_int_to_mode) <case ASHIFT>: Use mode instead of
10886         op_mode in the force_to_mode call.
10887
10888 2018-01-09  Richard Sandiford  <richard.sandiford@linaro.org>
10889
10890         * config/aarch64/aarch64.c (aarch64_evpc_trn): Use d.perm.series_p
10891         instead of checking each element individually.
10892         (aarch64_evpc_uzp): Likewise.
10893         (aarch64_evpc_zip): Likewise.
10894         (aarch64_evpc_ext): Likewise.
10895         (aarch64_evpc_rev): Likewise.
10896         (aarch64_evpc_dup): Test the encoding for a single duplicated element,
10897         instead of checking each element individually.  Return true without
10898         generating rtl if
10899         (aarch64_vectorize_vec_perm_const): Use all_from_input_p to test
10900         whether all selected elements come from the same input, instead of
10901         checking each element individually.  Remove calls to gen_rtx_REG,
10902         start_sequence and end_sequence and instead assert that no rtl is
10903         generated.
10904
10905 2018-01-09  Richard Sandiford  <richard.sandiford@linaro.org>
10906
10907         * config/aarch64/aarch64.c (aarch64_legitimate_constant_p): Fix
10908         order of HIGH and CONST checks.
10909
10910 2018-01-09  Richard Sandiford  <richard.sandiford@linaro.org>
10911
10912         * tree-vect-stmts.c (permute_vec_elements): Create a fresh variable
10913         if the destination isn't an SSA_NAME.
10914
10915 2018-01-09  Richard Biener  <rguenther@suse.de>
10916
10917         PR tree-optimization/83668
10918         * graphite.c (canonicalize_loop_closed_ssa): Add edge argument,
10919         move prologue...
10920         (canonicalize_loop_form): ... here, renamed from ...
10921         (canonicalize_loop_closed_ssa_form): ... this and amended to
10922         swap successor edges for loop exit blocks to make us use
10923         the RPO order we need for initial schedule generation.
10924
10925 2018-01-09  Joseph Myers  <joseph@codesourcery.com>
10926
10927         PR tree-optimization/64811
10928         * match.pd: When optimizing comparisons with Inf, avoid
10929         introducing or losing exceptions from comparisons with NaN.
10930
10931 2018-01-09  Martin Liska  <mliska@suse.cz>
10932
10933         PR sanitizer/82517
10934         * asan.c (shadow_mem_size): Add gcc_assert.
10935
10936 2018-01-09  Georg-Johann Lay  <avr@gjlay.de>
10937
10938         Don't save registers in main().
10939
10940         PR target/83738
10941         * doc/invoke.texi (AVR Options) [-mmain-is-OS_task]: Document it.
10942         * config/avr/avr.opt (-mmain-is-OS_task): New target option.
10943         * config/avr/avr.c (avr_set_current_function): Don't error if
10944         naked, OS_task or OS_main are specified at the same time.
10945         (avr_function_ok_for_sibcall): Don't disable sibcalls for OS_task,
10946         OS_main.
10947         (avr_insert_attributes) [-mmain-is-OS_task] <main>: Add OS_task
10948         attribute.
10949         * common/config/avr/avr-common.c (avr_option_optimization_table):
10950         Switch on -mmain-is-OS_task for optimizing compilations.
10951
10952 2018-01-09  Richard Biener  <rguenther@suse.de>
10953
10954         PR tree-optimization/83572
10955         * graphite.c: Include cfganal.h.
10956         (graphite_transform_loops): Connect infinite loops to exit
10957         and remove fake edges at the end.
10958
10959 2018-01-09  Jan Hubicka  <hubicka@ucw.cz>
10960
10961         * ipa-inline.c (edge_badness): Revert accidental checkin.
10962
10963 2018-01-09  Jan Hubicka  <hubicka@ucw.cz>
10964
10965         PR ipa/80763
10966         * ipa-comdats.c (set_comdat_group): Only set comdat group of real
10967         symbols; not inline clones.
10968
10969 2018-01-09  Jakub Jelinek  <jakub@redhat.com>
10970
10971         PR target/83507
10972         * modulo-sched.c (schedule_reg_moves): Punt if we'd need to move
10973         hard registers.  Formatting fixes.
10974
10975         PR preprocessor/83722
10976         * gcc.c (try_generate_repro): Pass
10977         &temp_stderr_files[RETRY_ICE_ATTEMPTS - 1] rather than
10978         &temp_stdout_files[RETRY_ICE_ATTEMPTS - 1] as last argument to
10979         do_report_bug.
10980
10981 2018-01-08  Monk Chiang  <sh.chiang04@gmail.com>
10982             Kito Cheng  <kito.cheng@gmail.com>
10983
10984         * config/riscv/riscv.c (machine_function::is_leaf): Remove field.
10985         (riscv_leaf_function_p): Delete.
10986         (riscv_function_ok_for_sibcall): Return false when TARGET_SAVE_RESTORE.
10987
10988 2018-01-08  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
10989
10990         * config/rs6000/rs6000-string.c (do_load_for_compare_from_addr): New
10991         function.
10992         (do_ifelse): New function.
10993         (do_isel): New function.
10994         (do_sub3): New function.
10995         (do_add3): New function.
10996         (do_load_mask_compare): New function.
10997         (do_overlap_load_compare): New function.
10998         (expand_compare_loop): New function.
10999         (expand_block_compare): Call expand_compare_loop() when appropriate.
11000         * config/rs6000/rs6000.opt (-mblock-compare-inline-limit): Change
11001         option description.
11002         (-mblock-compare-inline-loop-limit): New option.
11003
11004 2018-01-08  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
11005
11006         PR target/83677
11007         * config/rs6000/altivec.md (*altivec_vpermr_<mode>_internal):
11008         Reverse order of second and third operands in first alternative.
11009         * config/rs6000/rs6000.c (rs6000_expand_vector_set): Reverse order
11010         of first and second elements in UNSPEC_VPERMR vector.
11011         (altivec_expand_vec_perm_le): Likewise.
11012
11013 2018-01-08  Jeff Law  <law@redhat.com>
11014
11015         PR rtl-optimizatin/81308
11016         * tree-switch-conversion.c (cfg_altered): New file scoped static.
11017         (process_switch): If group_case_labels makes a change, then set
11018         cfg_altered.
11019         (pass_convert_switch::execute): If a switch is converted, then
11020         set cfg_altered.  Return TODO_cfg_cleanup if cfg_altered is true.
11021
11022         PR rtl-optimization/81308
11023         * recog.c (split_all_insns): Conditionally cleanup the CFG after
11024         splitting insns.
11025
11026 2018-01-08  Vidya Praveen  <vidyapraveen@arm.com>
11027
11028         PR target/83663 - Revert r255946
11029         * config/aarch64/aarch64.c (aarch64_expand_vector_init): Modify code
11030         generation for cases where splatting a value is not useful.
11031         * simplify-rtx.c (simplify_ternary_operation): Simplify vec_merge
11032         across a vec_duplicate and a paradoxical subreg forming a vector
11033         mode to a vec_concat.
11034
11035 2018-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
11036
11037         * config/arm/t-aprofile (MULTILIB_MATCHES): Add mapping rules for
11038         -march=armv8.3-a variants.
11039         * config/arm/t-multilib: Likewise.
11040         * config/arm/t-arm-elf: Likewise.  Handle dotprod extension.
11041
11042 2018-01-08  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
11043
11044         * config/rs6000/rs6000.md (cceq_ior_compare): Remove * so I can use it
11045         to generate rtl.
11046         (cceq_ior_compare_complement): Give it a name so I can use it, and
11047         change boolean_or_operator predicate to boolean_operator so it can
11048         be used to generate a crand.
11049         (eqne): New code iterator.
11050         (bd/bd_neg): New code_attrs.
11051         (<bd>_<mode>): New name for ctr<mode>_internal[12] now combined into
11052         a single define_insn.
11053         (<bd>tf_<mode>): A new insn pattern for the conditional form branch
11054         decrement (bdnzt/bdnzf/bdzt/bdzf).
11055         * config/rs6000/rs6000.c (rs6000_legitimate_combined_insn): Updated
11056         with the new names of the branch decrement patterns, and added the
11057         names of the branch decrement conditional patterns.
11058
11059 2018-01-08  Richard Biener  <rguenther@suse.de>
11060
11061         PR tree-optimization/83563
11062         * graphite.c (canonicalize_loop_closed_ssa_form): Reset the SCEV
11063         cache.
11064
11065 2018-01-08  Richard Biener  <rguenther@suse.de>
11066
11067         PR middle-end/83713
11068         * convert.c (do_narrow): Properly guard TYPE_OVERFLOW_WRAPS checks.
11069
11070 2018-01-08  Richard Biener  <rguenther@suse.de>
11071
11072         PR tree-optimization/83685
11073         * tree-ssa-pre.c (create_expression_by_pieces): Do not insert
11074         references to abnormals.
11075
11076 2018-01-08  Richard Biener  <rguenther@suse.de>
11077
11078         PR lto/83719
11079         * dwarf2out.c (output_indirect_strings): Handle empty
11080         skeleton_debug_str_hash.
11081         (dwarf2out_early_finish): Index strings for -gsplit-dwarf.
11082
11083 2018-01-08  Claudiu Zissulescu  <claziss@synopsys.com>
11084
11085         * config/arc/arc.c (TARGET_TRAMPOLINE_ADJUST_ADDRESS): Delete.
11086         (emit_store_direct): Likewise.
11087         (arc_trampoline_adjust_address): Likewise.
11088         (arc_asm_trampoline_template): New function.
11089         (arc_initialize_trampoline): Use asm_trampoline_template.
11090         (TARGET_ASM_TRAMPOLINE_TEMPLATE): Define.
11091         * config/arc/arc.h (TRAMPOLINE_SIZE): Adjust to 16.
11092         * config/arc/arc.md (flush_icache): Delete pattern.
11093
11094 2018-01-08  Claudiu Zissulescu  <claziss@synopsys.com>
11095
11096         * config/arc/arc-c.def (__ARC_UNALIGNED__): New define.
11097         * config/arc/arc.h (STRICT_ALIGNMENT): Control this macro using
11098         munaligned-access.
11099
11100 2018-01-08  Sebastian Huber  <sebastian.huber@embedded-brains.de>
11101
11102         PR target/83681
11103         * config/epiphany/epiphany.h (make_pass_mode_switch_use): Guard
11104         by not USED_FOR_TARGET.
11105         (make_pass_resolve_sw_modes): Likewise.
11106
11107 2018-01-08  Sebastian Huber  <sebastian.huber@embedded-brains.de>
11108
11109         * config/nios2/nios2.h (nios2_section_threshold): Guard by not
11110         USED_FOR_TARGET.
11111
11112 2018-01-08  Richard Biener  <rguenther@suse.de>
11113
11114         PR middle-end/83580
11115         * tree-data-ref.c (split_constant_offset): Remove STRIP_NOPS.
11116
11117 2018-01-08  Richard Biener  <rguenther@suse.de>
11118
11119         PR middle-end/83517
11120         * match.pd ((t * 2) / 2) -> t): Add missing :c.
11121
11122 2018-01-06  Aldy Hernandez  <aldyh@redhat.com>
11123
11124         PR middle-end/81897
11125         * tree-ssa-uninit.c (compute_control_dep_chain): Do not bail on
11126         basic blocks with a small number of successors.
11127         (convert_control_dep_chain_into_preds): Improve handling of
11128         forwarder blocks.
11129         (dump_predicates): Split apart into...
11130         (dump_pred_chain): ...here...
11131         (dump_pred_info): ...and here.
11132         (can_one_predicate_be_invalidated_p): Add debugging printfs.
11133         (can_chain_union_be_invalidated_p): Improve check for invalidation
11134         of paths.
11135         (uninit_uses_cannot_happen): Avoid unnecessary if
11136         convert_control_dep_chain_into_preds yielded nothing.
11137
11138 2018-01-06  Martin Sebor  <msebor@redhat.com>
11139
11140         PR tree-optimization/83640
11141         * gimple-ssa-warn-restrict.c (builtin_access::builtin_access): Avoid
11142         subtracting negative offset from size.
11143         (builtin_access::overlap): Adjust offset bounds of the access to fall
11144         within the size of the object if possible.
11145
11146 2018-01-06  Richard Sandiford  <richard.sandiford@linaro.org>
11147
11148         PR rtl-optimization/83699
11149         * expmed.c (extract_bit_field_1): Restrict the vector usage of
11150         extract_bit_field_as_subreg to cases in which the extracted
11151         value is also a vector.
11152
11153         * lra-constraints.c (process_alt_operands): Test for the equivalence
11154         substitutions when detecting a possible reload cycle.
11155
11156 2018-01-06  Jakub Jelinek  <jakub@redhat.com>
11157
11158         PR debug/83480
11159         * toplev.c (process_options): Don't enable debug_nonbind_markers_p
11160         by default if flag_selective_schedling{,2}.  Formatting fixes.
11161
11162         PR rtl-optimization/83682
11163         * rtl.h (const_vec_duplicate_p): Only return true for VEC_DUPLICATE
11164         if it has non-VECTOR_MODE element mode.
11165         (vec_duplicate_p): Likewise.
11166
11167         PR middle-end/83694
11168         * cfgexpand.c (expand_debug_expr): Punt if mode1 is VOIDmode
11169         and bitsize might be greater than MAX_BITSIZE_MODE_ANY_INT.
11170
11171 2018-01-05  Jakub Jelinek  <jakub@redhat.com>
11172
11173         PR target/83604
11174         * config/i386/i386-builtin.def
11175         (__builtin_ia32_vgf2p8affineinvqb_v64qi,
11176         __builtin_ia32_vgf2p8affineqb_v64qi, __builtin_ia32_vgf2p8mulb_v64qi):
11177         Require also OPTION_MASK_ISA_AVX512F in addition to
11178         OPTION_MASK_ISA_GFNI.
11179         (__builtin_ia32_vgf2p8affineinvqb_v16qi_mask,
11180         __builtin_ia32_vgf2p8affineqb_v16qi_mask): Require
11181         OPTION_MASK_ISA_AVX512VL instead of OPTION_MASK_ISA_SSE in addition
11182         to OPTION_MASK_ISA_GFNI.
11183         (__builtin_ia32_vgf2p8mulb_v32qi_mask): Require
11184         OPTION_MASK_ISA_AVX512VL in addition to OPTION_MASK_ISA_GFNI and
11185         OPTION_MASK_ISA_AVX512BW.
11186         (__builtin_ia32_vgf2p8mulb_v16qi_mask): Require
11187         OPTION_MASK_ISA_AVX512VL instead of OPTION_MASK_ISA_AVX512BW in
11188         addition to OPTION_MASK_ISA_GFNI.
11189         (__builtin_ia32_vgf2p8affineinvqb_v16qi,
11190         __builtin_ia32_vgf2p8affineqb_v16qi, __builtin_ia32_vgf2p8mulb_v16qi):
11191         Require OPTION_MASK_ISA_SSE2 instead of OPTION_MASK_ISA_SSE in addition
11192         to OPTION_MASK_ISA_GFNI.
11193         * config/i386/i386.c (def_builtin): Change to builtin isa/isa2 being
11194         a requirement for all ISAs rather than any of them with a few
11195         exceptions.
11196         (ix86_add_new_builtins): Clear OPTION_MASK_ISA_64BIT from isa before
11197         processing.
11198         (ix86_expand_builtin): Require all ISAs from builtin's isa and isa2
11199         bitmasks to be enabled with 3 exceptions, instead of requiring any
11200         enabled ISA with lots of exceptions.
11201         * config/i386/sse.md (vgf2p8affineinvqb_<mode><mask_name>,
11202         vgf2p8affineqb_<mode><mask_name>, vgf2p8mulb_<mode><mask_name>):
11203         Change avx512bw in isa attribute to avx512f.
11204         * config/i386/sgxintrin.h: Add license boilerplate.
11205         * config/i386/vaesintrin.h: Likewise.  Fix macro spelling __AVX512F
11206         to __AVX512F__ and __AVX512VL to __AVX512VL__.
11207         (_mm256_aesdec_epi128, _mm256_aesdeclast_epi128, _mm256_aesenc_epi128,
11208         _mm256_aesenclast_epi128): Enable temporarily avx if __AVX__ is not
11209         defined.
11210         * config/i386/gfniintrin.h (_mm_gf2p8mul_epi8,
11211         _mm_gf2p8affineinv_epi64_epi8, _mm_gf2p8affine_epi64_epi8): Enable
11212         temporarily sse2 rather than sse if not enabled already.
11213
11214         PR target/83604
11215         * config/i386/sse.md (VI248_VLBW): Rename to ...
11216         (VI248_AVX512VL): ... this.  Don't guard V32HI with TARGET_AVX512BW.
11217         (vpshrd_<mode><mask_name>, vpshld_<mode><mask_name>,
11218         vpshrdv_<mode>, vpshrdv_<mode>_mask, vpshrdv_<mode>_maskz,
11219         vpshrdv_<mode>_maskz_1, vpshldv_<mode>, vpshldv_<mode>_mask,
11220         vpshldv_<mode>_maskz, vpshldv_<mode>_maskz_1): Use VI248_AVX512VL
11221         mode iterator instead of VI248_VLBW.
11222
11223 2018-01-05  Jan Hubicka  <hubicka@ucw.cz>
11224
11225         * ipa-fnsummary.c (record_modified_bb_info): Add OP.
11226         (record_modified): Skip clobbers; add debug output.
11227         (param_change_prob): Use sreal frequencies.
11228
11229 2018-01-05  Richard Sandiford  <richard.sandiford@linaro.org>
11230
11231         * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Don't
11232         punt for user-aligned variables.
11233
11234 2018-01-05  Richard Sandiford  <richard.sandiford@linaro.org>
11235
11236         * tree-chrec.c (chrec_contains_symbols): Return true for
11237         POLY_INT_CST.
11238
11239 2018-01-05  Sudakshina Das  <sudi.das@arm.com>
11240
11241         PR target/82439
11242         * simplify-rtx.c (simplify_relational_operation_1): Add simplifications
11243         of (x|y) == x for BICS pattern.
11244
11245 2018-01-05  Jakub Jelinek  <jakub@redhat.com>
11246
11247         PR tree-optimization/83605
11248         * gimple-ssa-strength-reduction.c: Include tree-eh.h.
11249         (find_candidates_dom_walker::before_dom_children): Ignore stmts that
11250         can throw.
11251
11252 2018-01-05  Sebastian Huber  <sebastian.huber@embedded-brains.de>
11253
11254         * config.gcc (epiphany-*-elf*): Add (epiphany-*-rtems*) configuration.
11255         * config/epiphany/rtems.h: New file.
11256
11257 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
11258             Uros Bizjak  <ubizjak@gmail.com>
11259
11260         PR target/83554
11261         * config/i386/i386.md (*<rotate_insn>hi3_1 splitter): Use
11262         QIreg_operand instead of register_operand predicate.
11263         * config/i386/i386.c (ix86_rop_should_change_byte_p,
11264         set_rop_modrm_reg_bits, ix86_mitigate_rop): Use -mmitigate-rop in
11265         comments instead of -fmitigate[-_]rop.
11266
11267 2018-01-04  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
11268
11269         PR bootstrap/81926
11270         * cgraphunit.c (symbol_table::compile): Switch to text_section
11271         before calling assembly_start debug hook.
11272         * run-rtl-passes.c (run_rtl_passes): Likewise.
11273         Include output.h.
11274
11275 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
11276
11277         * tree-vrp.c (extract_range_from_binary_expr_1): Check
11278         range_int_cst_p rather than !symbolic_range_p before calling
11279         extract_range_from_multiplicative_op_1.
11280
11281 2018-01-04  Jeff Law  <law@redhat.com>
11282
11283         * tree-ssa-math-opts.c (execute_cse_reciprocals_1): Remove
11284         redundant test in assertion.
11285
11286 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
11287
11288         * doc/rtl.texi: Document machine_mode wrapper classes.
11289
11290 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
11291
11292         * fold-const.c (fold_ternary_loc): Check tree_fits_uhwi_p before
11293         using tree_to_uhwi.
11294
11295 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
11296
11297         * tree-ssa-forwprop.c (is_combined_permutation_identity): Allow
11298         the VEC_PERM_EXPR fold to fail.
11299
11300 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
11301
11302         PR debug/83585
11303         * bb-reorder.c (insert_section_boundary_note): Set has_bb_partition
11304         to switched_sections.
11305
11306 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
11307
11308         PR target/83680
11309         * config/arm/arm.c (arm_vectorize_vec_perm_const): Fix inverted
11310         test for d.testing.
11311
11312 2018-01-04  Peter Bergner  <bergner@vnet.ibm.com>
11313
11314         PR target/83387
11315         * config/rs6000/rs6000.c (rs6000_discover_homogeneous_aggregate): Do not
11316         allow arguments in FP registers if TARGET_HARD_FLOAT is false.
11317
11318 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
11319
11320         PR debug/83666
11321         * cfgexpand.c (expand_debug_expr) <case BIT_FIELD_REF>: Punt if mode
11322         is BLKmode and bitpos not zero or mode change is needed.
11323
11324 2018-01-04  Richard Sandiford  <richard.sandiford@linaro.org>
11325
11326         PR target/83675
11327         * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): Require
11328         TARGET_VIS2.
11329
11330 2018-01-04  Uros Bizjak  <ubizjak@gmail.com>
11331
11332         PR target/83628
11333         * config/alpha/alpha.md (*sadd<modesuffix>): Use ASHIFT
11334         instead of MULT rtx.  Update all corresponding splitters.
11335         (*saddl_se): Ditto.
11336         (*ssub<modesuffix>): Ditto.
11337         (*ssubl_se): Ditto.
11338         (*cmp_sadd_di): Update split patterns.
11339         (*cmp_sadd_si): Ditto.
11340         (*cmp_sadd_sidi): Ditto.
11341         (*cmp_ssub_di): Ditto.
11342         (*cmp_ssub_si): Ditto.
11343         (*cmp_ssub_sidi): Ditto.
11344         * config/alpha/predicates.md (const23_operand): New predicate.
11345         * config/alpha/alpha.c (alpha_rtx_costs) [PLUS, MINUS]:
11346         Look for ASHIFT, not MULT inner operand.
11347         (alpha_split_conditional_move): Update for *sadd<modesuffix> change.
11348
11349 2018-01-04  Martin Liska  <mliska@suse.cz>
11350
11351         PR gcov-profile/83669
11352         * gcov.c (output_intermediate_file): Add version to intermediate
11353         gcov file.
11354         * doc/gcov.texi: Document new field 'version' in intermediate
11355         file format. Fix location of '-k' option of gcov command.
11356
11357 2018-01-04  Martin Liska  <mliska@suse.cz>
11358
11359         PR ipa/82352
11360         * ipa-icf.c (sem_function::merge): Do not cross comdat boundary.
11361
11362 2018-01-04  Jakub Jelinek  <jakub@redhat.com>
11363
11364         * gimple-ssa-sprintf.c (parse_directive): Cast second dir.len to uhwi.
11365
11366 2018-01-03  Martin Sebor  <msebor@redhat.com>
11367
11368         PR tree-optimization/83655
11369         * gimple-ssa-warn-restrict.c (wrestrict_dom_walker::check_call): Avoid
11370         checking calls with invalid arguments.
11371
11372 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11373
11374         * tree-vect-stmts.c (vect_get_store_rhs): New function.
11375         (vectorizable_mask_load_store): Delete.
11376         (vectorizable_call): Return false for masked loads and stores.
11377         (vectorizable_store): Handle IFN_MASK_STORE.  Use vect_get_store_rhs
11378         instead of gimple_assign_rhs1.
11379         (vectorizable_load): Handle IFN_MASK_LOAD.
11380         (vect_transform_stmt): Don't set is_store for call_vec_info_type.
11381
11382 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11383
11384         * tree-vect-stmts.c (vect_build_gather_load_calls): New function,
11385         split out from..,
11386         (vectorizable_mask_load_store): ...here.
11387         (vectorizable_load): ...and here.
11388
11389 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11390
11391         * tree-vect-stmts.c (vect_build_all_ones_mask)
11392         (vect_build_zero_merge_argument): New functions, split out from...
11393         (vectorizable_load): ...here.
11394
11395 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11396
11397         * tree-vect-stmts.c (vect_check_store_rhs): New function,
11398         split out from...
11399         (vectorizable_mask_load_store): ...here.
11400         (vectorizable_store): ...and here.
11401
11402 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11403
11404         * tree-vect-stmts.c (vect_check_load_store_mask): New function,
11405         split out from...
11406         (vectorizable_mask_load_store): ...here.
11407
11408 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11409
11410         * tree-vectorizer.h (vec_load_store_type): Moved from tree-vec-stmts.c
11411         (vect_model_store_cost): Take a vec_load_store_type instead of a
11412         vect_def_type.
11413         * tree-vect-stmts.c (vec_load_store_type): Move to tree-vectorizer.h.
11414         (vect_model_store_cost): Take a vec_load_store_type instead of a
11415         vect_def_type.
11416         (vectorizable_mask_load_store): Update accordingly.
11417         (vectorizable_store): Likewise.
11418         * tree-vect-slp.c (vect_analyze_slp_cost_1): Update accordingly.
11419
11420 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11421
11422         * tree-vect-loop.c (vect_transform_loop): Stub out scalar
11423         IFN_MASK_LOAD calls here rather than...
11424         * tree-vect-stmts.c (vectorizable_mask_load_store): ...here.
11425
11426 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11427             Alan Hayward  <alan.hayward@arm.com>
11428             David Sherwood  <david.sherwood@arm.com>
11429
11430         * expmed.c (extract_bit_field_1): For vector extracts,
11431         fall back to extract_bit_field_as_subreg if vec_extract
11432         isn't available.
11433
11434 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11435             Alan Hayward  <alan.hayward@arm.com>
11436             David Sherwood  <david.sherwood@arm.com>
11437
11438         * lra-spills.c (pseudo_reg_slot_compare): Sort slots by whether
11439         they are variable or constant sized.
11440         (assign_stack_slot_num_and_sort_pseudos): Don't reuse variable-sized
11441         slots for constant-sized data.
11442
11443 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11444             Alan Hayward  <alan.hayward@arm.com>
11445             David Sherwood  <david.sherwood@arm.com>
11446
11447         * tree-vect-patterns.c (vect_recog_mask_conversion_pattern): When
11448         handling COND_EXPRs with boolean comparisons, try to find a better
11449         basis for the mask type than the boolean itself.
11450
11451 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11452
11453         * doc/rtl.texi (MAX_BITSIZE_MODE_ANY_MODE): Describe how the default
11454         is calculated and how it can be overridden.
11455         * genmodes.c (max_bitsize_mode_any_mode): New variable.
11456         (create_modes): Initialize it from MAX_BITSIZE_MODE_ANY_MODE,
11457         if defined.
11458         (emit_max_int): Use it to set the output MAX_BITSIZE_MODE_ANY_MODE,
11459         if nonzero.
11460
11461 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11462             Alan Hayward  <alan.hayward@arm.com>
11463             David Sherwood  <david.sherwood@arm.com>
11464
11465         * config/aarch64/aarch64-protos.h (aarch64_output_simd_mov_immediate):
11466         Remove the mode argument.
11467         (aarch64_simd_valid_immediate): Remove the mode and inverse
11468         arguments.
11469         * config/aarch64/iterators.md (bitsize): New iterator.
11470         * config/aarch64/aarch64-simd.md (*aarch64_simd_mov<mode>, and<mode>3)
11471         (ior<mode>3): Update calls to aarch64_output_simd_mov_immediate.
11472         * config/aarch64/constraints.md (Do, Db, Dn): Update calls to
11473         aarch64_simd_valid_immediate.
11474         * config/aarch64/predicates.md (aarch64_reg_or_orr_imm): Likewise.
11475         (aarch64_reg_or_bic_imm): Likewise.
11476         * config/aarch64/aarch64.c (simd_immediate_info): Replace mvn
11477         with an insn_type enum and msl with a modifier_type enum.
11478         Replace element_width with a scalar_mode.  Change the shift
11479         to unsigned int.  Add constructors for scalar_float_mode and
11480         scalar_int_mode elements.
11481         (aarch64_vect_float_const_representable_p): Delete.
11482         (aarch64_can_const_movi_rtx_p)
11483         (aarch64_simd_scalar_immediate_valid_for_move)
11484         (aarch64_simd_make_constant): Update call to
11485         aarch64_simd_valid_immediate.
11486         (aarch64_advsimd_valid_immediate_hs): New function.
11487         (aarch64_advsimd_valid_immediate): Likewise.
11488         (aarch64_simd_valid_immediate): Remove mode and inverse
11489         arguments.  Rewrite to use the above.  Use const_vec_duplicate_p
11490         to detect duplicated constants and use aarch64_float_const_zero_rtx_p
11491         and aarch64_float_const_representable_p on the result.
11492         (aarch64_output_simd_mov_immediate): Remove mode argument.
11493         Update call to aarch64_simd_valid_immediate and use of
11494         simd_immediate_info.
11495         (aarch64_output_scalar_simd_mov_immediate): Update call
11496         accordingly.
11497
11498 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11499             Alan Hayward  <alan.hayward@arm.com>
11500             David Sherwood  <david.sherwood@arm.com>
11501
11502         * machmode.h (mode_precision): Prefix with CONST_MODE_PRECISION.
11503         (mode_nunits): Likewise CONST_MODE_NUNITS.
11504         * machmode.def (ADJUST_NUNITS): Document.
11505         * genmodes.c (mode_data::need_nunits_adj): New field.
11506         (blank_mode): Update accordingly.
11507         (adj_nunits): New variable.
11508         (print_maybe_const_decl): Replace CATEGORY with a NEEDS_ADJ
11509         parameter.
11510         (emit_mode_size_inline): Set need_bytesize_adj for all modes
11511         listed in adj_nunits.
11512         (emit_mode_nunits_inline): Set need_nunits_adj for all modes
11513         listed in adj_nunits.  Don't emit case statements for such modes.
11514         (emit_insn_modes_h): Emit definitions of CONST_MODE_NUNITS
11515         and CONST_MODE_PRECISION.  Make CONST_MODE_SIZE expand to
11516         nothing if adj_nunits is nonnull.
11517         (emit_mode_precision, emit_mode_nunits): Use print_maybe_const_decl.
11518         (emit_mode_unit_size, emit_mode_base_align, emit_mode_ibit)
11519         (emit_mode_fbit): Update use of print_maybe_const_decl.
11520         (emit_move_size): Likewise.  Treat the array as non-const
11521         if adj_nunits.
11522         (emit_mode_adjustments): Handle adj_nunits.
11523
11524 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11525
11526         * machmode.def (VECTOR_MODES_WITH_PREFIX): Document.
11527         * genmodes.c (VECTOR_MODES_WITH_PREFIX): New macro.
11528         (VECTOR_MODES): Use it.
11529         (make_vector_modes): Take the prefix as an argument.
11530
11531 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11532             Alan Hayward  <alan.hayward@arm.com>
11533             David Sherwood  <david.sherwood@arm.com>
11534
11535         * mode-classes.def (MODE_VECTOR_BOOL): New mode class.
11536         * machmode.h (INTEGRAL_MODE_P, VECTOR_MODE_P): Return true
11537         for MODE_VECTOR_BOOL.
11538         * machmode.def (VECTOR_BOOL_MODE): Document.
11539         * genmodes.c (VECTOR_BOOL_MODE): New macro.
11540         (make_vector_bool_mode): New function.
11541         (complete_mode, emit_mode_wider, emit_mode_adjustments): Handle
11542         MODE_VECTOR_BOOL.
11543         * lto-streamer-in.c (lto_input_mode_table): Likewise.
11544         * rtx-vector-builder.c (rtx_vector_builder::find_cached_value):
11545         Likewise.
11546         * stor-layout.c (int_mode_for_mode): Likewise.
11547         * tree.c (build_vector_type_for_mode): Likewise.
11548         * varasm.c (output_constant_pool_2): Likewise.
11549         * emit-rtl.c (init_emit_once): Make sure that CONST1_RTX (BImode) and
11550         CONSTM1_RTX (BImode) are the same thing.  Initialize const_tiny_rtx
11551         for MODE_VECTOR_BOOL.
11552         * expr.c (expand_expr_real_1): Use VECTOR_MODE_P instead of a list
11553         of mode class checks.
11554         * tree-vect-generic.c (expand_vector_operation): Use VECTOR_MODE_P
11555         instead of a list of mode class checks.
11556         (expand_vector_scalar_condition): Likewise.
11557         (type_for_widest_vector_mode): Handle BImode as an inner mode.
11558
11559 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11560             Alan Hayward  <alan.hayward@arm.com>
11561             David Sherwood  <david.sherwood@arm.com>
11562
11563         * machmode.h (mode_size): Change from unsigned short to
11564         poly_uint16_pod.
11565         (mode_to_bytes): Return a poly_uint16 rather than an unsigned short.
11566         (GET_MODE_SIZE): Return a constant if ONLY_FIXED_SIZE_MODES,
11567         or if measurement_type is not polynomial.
11568         (fixed_size_mode::includes_p): Check for constant-sized modes.
11569         * genmodes.c (emit_mode_size_inline): Make mode_size_inline
11570         return a poly_uint16 rather than an unsigned short.
11571         (emit_mode_size): Change the type of mode_size from unsigned short
11572         to poly_uint16_pod.  Use ZERO_COEFFS for the initializer.
11573         (emit_mode_adjustments): Cope with polynomial vector sizes.
11574         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
11575         for GET_MODE_SIZE.
11576         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
11577         for GET_MODE_SIZE.
11578         * auto-inc-dec.c (try_merge): Treat GET_MODE_SIZE as polynomial.
11579         * builtins.c (expand_ifn_atomic_compare_exchange_into_call): Likewise.
11580         * caller-save.c (setup_save_areas): Likewise.
11581         (replace_reg_with_saved_mem): Likewise.
11582         * calls.c (emit_library_call_value_1): Likewise.
11583         * combine-stack-adj.c (combine_stack_adjustments_for_block): Likewise.
11584         * combine.c (simplify_set, make_extraction, simplify_shift_const_1)
11585         (gen_lowpart_for_combine): Likewise.
11586         * convert.c (convert_to_integer_1): Likewise.
11587         * cse.c (equiv_constant, cse_insn): Likewise.
11588         * cselib.c (autoinc_split, cselib_hash_rtx): Likewise.
11589         (cselib_subst_to_values): Likewise.
11590         * dce.c (word_dce_process_block): Likewise.
11591         * df-problems.c (df_word_lr_mark_ref): Likewise.
11592         * dwarf2cfi.c (init_one_dwarf_reg_size): Likewise.
11593         * dwarf2out.c (multiple_reg_loc_descriptor, mem_loc_descriptor)
11594         (concat_loc_descriptor, concatn_loc_descriptor, loc_descriptor)
11595         (rtl_for_decl_location): Likewise.
11596         * emit-rtl.c (gen_highpart, widen_memory_access): Likewise.
11597         * expmed.c (extract_bit_field_1, extract_integral_bit_field): Likewise.
11598         * expr.c (emit_group_load_1, clear_storage_hints): Likewise.
11599         (emit_move_complex, emit_move_multi_word, emit_push_insn): Likewise.
11600         (expand_expr_real_1): Likewise.
11601         * function.c (assign_parm_setup_block_p, assign_parm_setup_block)
11602         (pad_below): Likewise.
11603         * gimple-fold.c (optimize_atomic_compare_exchange_p): Likewise.
11604         * gimple-ssa-store-merging.c (rhs_valid_for_store_merging_p): Likewise.
11605         * ira.c (get_subreg_tracking_sizes): Likewise.
11606         * ira-build.c (ira_create_allocno_objects): Likewise.
11607         * ira-color.c (coalesced_pseudo_reg_slot_compare): Likewise.
11608         (ira_sort_regnos_for_alter_reg): Likewise.
11609         * ira-costs.c (record_operand_costs): Likewise.
11610         * lower-subreg.c (interesting_mode_p, simplify_gen_subreg_concatn)
11611         (resolve_simple_move): Likewise.
11612         * lra-constraints.c (get_reload_reg, operands_match_p): Likewise.
11613         (process_addr_reg, simplify_operand_subreg, curr_insn_transform)
11614         (lra_constraints): Likewise.
11615         (CONST_POOL_OK_P): Reject variable-sized modes.
11616         * lra-spills.c (slot, assign_mem_slot, pseudo_reg_slot_compare)
11617         (add_pseudo_to_slot, lra_spill): Likewise.
11618         * omp-low.c (omp_clause_aligned_alignment): Likewise.
11619         * optabs-query.c (get_best_extraction_insn): Likewise.
11620         * optabs-tree.c (expand_vec_cond_expr_p): Likewise.
11621         * optabs.c (expand_vec_perm_var, expand_vec_cond_expr): Likewise.
11622         (expand_mult_highpart, valid_multiword_target_p): Likewise.
11623         * recog.c (offsettable_address_addr_space_p): Likewise.
11624         * regcprop.c (maybe_mode_change): Likewise.
11625         * reginfo.c (choose_hard_reg_mode, record_subregs_of_mode): Likewise.
11626         * regrename.c (build_def_use): Likewise.
11627         * regstat.c (dump_reg_info): Likewise.
11628         * reload.c (complex_word_subreg_p, push_reload, find_dummy_reload)
11629         (find_reloads, find_reloads_subreg_address): Likewise.
11630         * reload1.c (eliminate_regs_1): Likewise.
11631         * rtlanal.c (for_each_inc_dec_find_inc_dec, rtx_cost): Likewise.
11632         * simplify-rtx.c (avoid_constant_pool_reference): Likewise.
11633         (simplify_binary_operation_1, simplify_subreg): Likewise.
11634         * targhooks.c (default_function_arg_padding): Likewise.
11635         (default_hard_regno_nregs, default_class_max_nregs): Likewise.
11636         * tree-cfg.c (verify_gimple_assign_binary): Likewise.
11637         (verify_gimple_assign_ternary): Likewise.
11638         * tree-inline.c (estimate_move_cost): Likewise.
11639         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
11640         * tree-ssa-loop-ivopts.c (add_autoinc_candidates): Likewise.
11641         (get_address_cost_ainc): Likewise.
11642         * tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Likewise.
11643         (vect_supportable_dr_alignment): Likewise.
11644         * tree-vect-loop.c (vect_determine_vectorization_factor): Likewise.
11645         (vectorizable_reduction): Likewise.
11646         * tree-vect-stmts.c (vectorizable_assignment, vectorizable_shift)
11647         (vectorizable_operation, vectorizable_load): Likewise.
11648         * tree.c (build_same_sized_truth_vector_type): Likewise.
11649         * valtrack.c (cleanup_auto_inc_dec): Likewise.
11650         * var-tracking.c (emit_note_insn_var_location): Likewise.
11651         * config/arc/arc.h (ASM_OUTPUT_CASE_END): Use as_a <scalar_int_mode>.
11652         (ADDR_VEC_ALIGN): Likewise.
11653
11654 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11655             Alan Hayward  <alan.hayward@arm.com>
11656             David Sherwood  <david.sherwood@arm.com>
11657
11658         * machmode.h (mode_to_bits): Return a poly_uint16 rather than an
11659         unsigned short.
11660         (GET_MODE_BITSIZE): Return a constant if ONLY_FIXED_SIZE_MODES,
11661         or if measurement_type is polynomial.
11662         * calls.c (shift_return_value): Treat GET_MODE_BITSIZE as polynomial.
11663         * combine.c (make_extraction): Likewise.
11664         * dse.c (find_shift_sequence): Likewise.
11665         * dwarf2out.c (mem_loc_descriptor): Likewise.
11666         * expmed.c (store_integral_bit_field, extract_bit_field_1): Likewise.
11667         (extract_bit_field, extract_low_bits): Likewise.
11668         * expr.c (convert_move, convert_modes, emit_move_insn_1): Likewise.
11669         (optimize_bitfield_assignment_op, expand_assignment): Likewise.
11670         (store_expr_with_bounds, store_field, expand_expr_real_1): Likewise.
11671         * fold-const.c (optimize_bit_field_compare, merge_ranges): Likewise.
11672         * gimple-fold.c (optimize_atomic_compare_exchange_p): Likewise.
11673         * reload.c (find_reloads): Likewise.
11674         * reload1.c (alter_reg): Likewise.
11675         * stor-layout.c (bitwise_mode_for_mode, compute_record_mode): Likewise.
11676         * targhooks.c (default_secondary_memory_needed_mode): Likewise.
11677         * tree-if-conv.c (predicate_mem_writes): Likewise.
11678         * tree-ssa-strlen.c (handle_builtin_memcmp): Likewise.
11679         * tree-vect-patterns.c (adjust_bool_pattern): Likewise.
11680         * tree-vect-stmts.c (vectorizable_simd_clone_call): Likewise.
11681         * valtrack.c (dead_debug_insert_temp): Likewise.
11682         * varasm.c (mergeable_constant_section): Likewise.
11683         * config/sh/sh.h (LOCAL_ALIGNMENT): Use as_a <fixed_size_mode>.
11684
11685 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11686             Alan Hayward  <alan.hayward@arm.com>
11687             David Sherwood  <david.sherwood@arm.com>
11688
11689         * expr.c (expand_assignment): Cope with polynomial mode sizes
11690         when assigning to a CONCAT.
11691
11692 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11693             Alan Hayward  <alan.hayward@arm.com>
11694             David Sherwood  <david.sherwood@arm.com>
11695
11696         * machmode.h (mode_precision): Change from unsigned short to
11697         poly_uint16_pod.
11698         (mode_to_precision): Return a poly_uint16 rather than an unsigned
11699         short.
11700         (GET_MODE_PRECISION): Return a constant if ONLY_FIXED_SIZE_MODES,
11701         or if measurement_type is not polynomial.
11702         (HWI_COMPUTABLE_MODE_P): Turn into a function.  Optimize the case
11703         in which the mode is already known to be a scalar_int_mode.
11704         * genmodes.c (emit_mode_precision): Change the type of mode_precision
11705         from unsigned short to poly_uint16_pod.  Use ZERO_COEFFS for the
11706         initializer.
11707         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
11708         for GET_MODE_PRECISION.
11709         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
11710         for GET_MODE_PRECISION.
11711         * combine.c (update_rsp_from_reg_equal): Treat GET_MODE_PRECISION
11712         as polynomial.
11713         (try_combine, find_split_point, combine_simplify_rtx): Likewise.
11714         (expand_field_assignment, make_extraction): Likewise.
11715         (make_compound_operation_int, record_dead_and_set_regs_1): Likewise.
11716         (get_last_value): Likewise.
11717         * convert.c (convert_to_integer_1): Likewise.
11718         * cse.c (cse_insn): Likewise.
11719         * expr.c (expand_expr_real_1): Likewise.
11720         * lra-constraints.c (simplify_operand_subreg): Likewise.
11721         * optabs-query.c (can_atomic_load_p): Likewise.
11722         * optabs.c (expand_atomic_load): Likewise.
11723         (expand_atomic_store): Likewise.
11724         * ree.c (combine_reaching_defs): Likewise.
11725         * rtl.h (partial_subreg_p, paradoxical_subreg_p): Likewise.
11726         * rtlanal.c (nonzero_bits1, lsb_bitfield_op_p): Likewise.
11727         * tree.h (type_has_mode_precision_p): Likewise.
11728         * ubsan.c (instrument_si_overflow): Likewise.
11729
11730 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11731             Alan Hayward  <alan.hayward@arm.com>
11732             David Sherwood  <david.sherwood@arm.com>
11733
11734         * tree.h (TYPE_VECTOR_SUBPARTS): Turn into a function and handle
11735         polynomial numbers of units.
11736         (SET_TYPE_VECTOR_SUBPARTS): Likewise.
11737         (valid_vector_subparts_p): New function.
11738         (build_vector_type): Remove temporary shim and take the number
11739         of units as a poly_uint64 rather than an int.
11740         (build_opaque_vector_type): Take the number of units as a
11741         poly_uint64 rather than an int.
11742         * tree.c (build_vector_from_ctor): Handle polynomial
11743         TYPE_VECTOR_SUBPARTS.
11744         (type_hash_canon_hash, type_cache_hasher::equal): Likewise.
11745         (uniform_vector_p, vector_type_mode, build_vector): Likewise.
11746         (build_vector_from_val): If the number of units is variable,
11747         use build_vec_duplicate_cst for constant operands and
11748         VEC_DUPLICATE_EXPR otherwise.
11749         (make_vector_type): Remove temporary is_constant ().
11750         (build_vector_type, build_opaque_vector_type): Take the number of
11751         units as a poly_uint64 rather than an int.
11752         (check_vector_cst): Handle polynomial TYPE_VECTOR_SUBPARTS and
11753         VECTOR_CST_NELTS.
11754         * cfgexpand.c (expand_debug_expr): Likewise.
11755         * expr.c (count_type_elements, categorize_ctor_elements_1): Likewise.
11756         (store_constructor, expand_expr_real_1): Likewise.
11757         (const_scalar_mask_from_tree): Likewise.
11758         * fold-const-call.c (fold_const_reduction): Likewise.
11759         * fold-const.c (const_binop, const_unop, fold_convert_const): Likewise.
11760         (operand_equal_p, fold_vec_perm, fold_ternary_loc): Likewise.
11761         (native_encode_vector, vec_cst_ctor_to_array): Likewise.
11762         (fold_relational_const): Likewise.
11763         (native_interpret_vector): Likewise.  Change the size from an
11764         int to an unsigned int.
11765         * gimple-fold.c (gimple_fold_stmt_to_constant_1): Handle polynomial
11766         TYPE_VECTOR_SUBPARTS.
11767         (gimple_fold_indirect_ref, gimple_build_vector): Likewise.
11768         (gimple_build_vector_from_val): Use VEC_DUPLICATE_EXPR when
11769         duplicating a non-constant operand into a variable-length vector.
11770         * hsa-brig.c (hsa_op_immed::emit_to_buffer): Handle polynomial
11771         TYPE_VECTOR_SUBPARTS and VECTOR_CST_NELTS.
11772         * ipa-icf.c (sem_variable::equals): Likewise.
11773         * match.pd: Likewise.
11774         * omp-simd-clone.c (simd_clone_subparts): Likewise.
11775         * print-tree.c (print_node): Likewise.
11776         * stor-layout.c (layout_type): Likewise.
11777         * targhooks.c (default_builtin_vectorization_cost): Likewise.
11778         * tree-cfg.c (verify_gimple_comparison): Likewise.
11779         (verify_gimple_assign_binary): Likewise.
11780         (verify_gimple_assign_ternary): Likewise.
11781         (verify_gimple_assign_single): Likewise.
11782         * tree-pretty-print.c (dump_generic_node): Likewise.
11783         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
11784         (simplify_bitfield_ref, is_combined_permutation_identity): Likewise.
11785         * tree-vect-data-refs.c (vect_permute_store_chain): Likewise.
11786         (vect_grouped_load_supported, vect_permute_load_chain): Likewise.
11787         (vect_shift_permute_load_chain): Likewise.
11788         * tree-vect-generic.c (nunits_for_known_piecewise_op): Likewise.
11789         (expand_vector_condition, optimize_vector_constructor): Likewise.
11790         (lower_vec_perm, get_compute_type): Likewise.
11791         * tree-vect-loop.c (vect_determine_vectorization_factor): Likewise.
11792         (get_initial_defs_for_reduction, vect_transform_loop): Likewise.
11793         * tree-vect-patterns.c (vect_recog_bool_pattern): Likewise.
11794         (vect_recog_mask_conversion_pattern): Likewise.
11795         * tree-vect-slp.c (vect_supported_load_permutation_p): Likewise.
11796         (vect_get_constant_vectors, vect_transform_slp_perm_load): Likewise.
11797         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
11798         (get_group_load_store_type, vectorizable_mask_load_store): Likewise.
11799         (vectorizable_bswap, simd_clone_subparts, vectorizable_assignment)
11800         (vectorizable_shift, vectorizable_operation, vectorizable_store)
11801         (vectorizable_load, vect_is_simple_cond, vectorizable_comparison)
11802         (supportable_widening_operation): Likewise.
11803         (supportable_narrowing_operation): Likewise.
11804         * tree-vector-builder.c (tree_vector_builder::binary_encoded_nelts):
11805         Likewise.
11806         * varasm.c (output_constant): Likewise.
11807
11808 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11809             Alan Hayward  <alan.hayward@arm.com>
11810             David Sherwood  <david.sherwood@arm.com>
11811
11812         * tree-vect-data-refs.c (vect_permute_store_chain): Reorganize
11813         so that both the length == 3 and length != 3 cases set up their
11814         own permute vectors.  Add comments explaining why we know the
11815         number of elements is constant.
11816         (vect_permute_load_chain): Likewise.
11817
11818 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11819             Alan Hayward  <alan.hayward@arm.com>
11820             David Sherwood  <david.sherwood@arm.com>
11821
11822         * machmode.h (mode_nunits): Change from unsigned char to
11823         poly_uint16_pod.
11824         (ONLY_FIXED_SIZE_MODES): New macro.
11825         (pod_mode::measurement_type, scalar_int_mode::measurement_type)
11826         (scalar_float_mode::measurement_type, scalar_mode::measurement_type)
11827         (complex_mode::measurement_type, fixed_size_mode::measurement_type):
11828         New typedefs.
11829         (mode_to_nunits): Return a poly_uint16 rather than an unsigned short.
11830         (GET_MODE_NUNITS): Return a constant if ONLY_FIXED_SIZE_MODES,
11831         or if measurement_type is not polynomial.
11832         * genmodes.c (ZERO_COEFFS): New macro.
11833         (emit_mode_nunits_inline): Make mode_nunits_inline return a
11834         poly_uint16.
11835         (emit_mode_nunits): Change the type of mode_nunits to poly_uint16_pod.
11836         Use ZERO_COEFFS when emitting initializers.
11837         * data-streamer.h (bp_pack_poly_value): New function.
11838         (bp_unpack_poly_value): Likewise.
11839         * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value
11840         for GET_MODE_NUNITS.
11841         * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value
11842         for GET_MODE_NUNITS.
11843         * tree.c (make_vector_type): Remove temporary shim and make
11844         the real function take the number of units as a poly_uint64
11845         rather than an int.
11846         (build_vector_type_for_mode): Handle polynomial nunits.
11847         * dwarf2out.c (loc_descriptor, add_const_value_attribute): Likewise.
11848         * emit-rtl.c (const_vec_series_p_1): Likewise.
11849         (gen_rtx_CONST_VECTOR): Likewise.
11850         * fold-const.c (test_vec_duplicate_folding): Likewise.
11851         * genrecog.c (validate_pattern): Likewise.
11852         * optabs-query.c (can_vec_perm_var_p, can_mult_highpart_p): Likewise.
11853         * optabs-tree.c (expand_vec_cond_expr_p): Likewise.
11854         * optabs.c (expand_vector_broadcast, expand_binop_directly): Likewise.
11855         (shift_amt_for_vec_perm_mask, expand_vec_perm_var): Likewise.
11856         (expand_vec_cond_expr, expand_mult_highpart): Likewise.
11857         * rtlanal.c (subreg_get_info): Likewise.
11858         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
11859         (vect_grouped_load_supported): Likewise.
11860         * tree-vect-generic.c (type_for_widest_vector_mode): Likewise.
11861         * tree-vect-loop.c (have_whole_vector_shift): Likewise.
11862         * simplify-rtx.c (simplify_unary_operation_1): Likewise.
11863         (simplify_const_unary_operation, simplify_binary_operation_1)
11864         (simplify_const_binary_operation, simplify_ternary_operation)
11865         (test_vector_ops_duplicate, test_vector_ops): Likewise.
11866         (simplify_immed_subreg): Use GET_MODE_NUNITS on a fixed_size_mode
11867         instead of CONST_VECTOR_NUNITS.
11868         * varasm.c (output_constant_pool_2): Likewise.
11869         * rtx-vector-builder.c (rtx_vector_builder::build): Only include the
11870         explicit-encoded elements in the XVEC for variable-length vectors.
11871
11872 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11873
11874         * lra-constraints.c (curr_insn_transform): Use partial_subreg_p.
11875
11876 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11877             Alan Hayward  <alan.hayward@arm.com>
11878             David Sherwood  <david.sherwood@arm.com>
11879
11880         * coretypes.h (fixed_size_mode): Declare.
11881         (fixed_size_mode_pod): New typedef.
11882         * builtins.h (target_builtins::x_apply_args_mode)
11883         (target_builtins::x_apply_result_mode): Change type to
11884         fixed_size_mode_pod.
11885         * builtins.c (apply_args_size, apply_result_size, result_vector)
11886         (expand_builtin_apply_args_1, expand_builtin_apply)
11887         (expand_builtin_return): Update accordingly.
11888
11889 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
11890
11891         * cse.c (hash_rtx_cb): Hash only the encoded elements.
11892         * cselib.c (cselib_hash_rtx): Likewise.
11893         * expmed.c (make_tree): Build VECTOR_CSTs directly from the
11894         CONST_VECTOR encoding.
11895
11896 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
11897             Jeff Law  <law@redhat.com>
11898
11899         PR target/83641
11900         * config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): For
11901         noreturn probe, use gen_pop instead of ix86_emit_restore_reg_using_pop,
11902         only set RTX_FRAME_RELATED_P on both the push and pop if cfa_reg is sp
11903         and add REG_CFA_ADJUST_CFA notes in that case to both insns.
11904
11905         PR target/83641
11906         * config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash): Do not
11907         explicitly probe *sp in a noreturn function if there were any callee
11908         register saves or frame pointer is needed.
11909
11910 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
11911
11912         PR debug/83621
11913         * cfgexpand.c (expand_debug_expr): Return NULL if mode is
11914         BLKmode for ternary, binary or unary expressions.
11915
11916         PR debug/83645
11917         * var-tracking.c (delete_vta_debug_insn): New inline function.
11918         (delete_vta_debug_insns): Add USE_CFG argument, if true, walk just
11919         insns from get_insns () to NULL instead of each bb separately.
11920         Use delete_vta_debug_insn.  No longer static.
11921         (vt_debug_insns_local, variable_tracking_main_1): Adjust
11922         delete_vta_debug_insns callers.
11923         * rtl.h (delete_vta_debug_insns): Declare.
11924         * final.c (rest_of_handle_final): Call delete_vta_debug_insns
11925         instead of variable_tracking_main.
11926
11927 2018-01-03  Martin Sebor  <msebor@redhat.com>
11928
11929         PR tree-optimization/83603
11930         * calls.c (maybe_warn_nonstring_arg): Avoid accessing function
11931         arguments past the endof the argument list in functions declared
11932         without a prototype.
11933         * gimple-ssa-warn-restrict.c (wrestrict_dom_walker::check_call):
11934         Avoid checking when arguments are null.
11935
11936 2018-01-03  Martin Sebor  <msebor@redhat.com>
11937
11938         PR c/83559
11939         * doc/extend.texi (attribute const): Fix a typo.
11940         * ipa-pure-const.c ((warn_function_const, warn_function_pure): Avoid
11941         issuing -Wsuggest-attribute for void functions.
11942
11943 2018-01-03  Martin Sebor  <msebor@redhat.com>
11944
11945         * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Use
11946         offset_int::from instead of wide_int::to_shwi.
11947         (maybe_diag_overlap): Remove assertion.
11948         Use HOST_WIDE_INT_PRINT_DEC instead of %lli.
11949         * gimple-ssa-sprintf.c (format_directive): Same.
11950         (parse_directive): Same.
11951         (sprintf_dom_walker::compute_format_length): Same.
11952         (try_substitute_return_value): Same.
11953
11954 2018-01-03  Jeff Law  <law@redhat.com>
11955
11956         PR middle-end/83654
11957         * explow.c (anti_adjust_stack_and_probe_stack_clash): Test a
11958         non-constant residual for zero at runtime and avoid probing in
11959         that case.  Reorganize code for trailing problem to mirror handling
11960         of the residual.
11961
11962 2018-01-03  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
11963
11964         PR tree-optimization/83501
11965         * tree-ssa-strlen.c (get_string_cst): New.
11966         (handle_char_store): Call get_string_cst.
11967
11968 2018-01-03  Martin Liska  <mliska@suse.cz>
11969
11970         PR tree-optimization/83593
11971         * tree-ssa-strlen.c: Include tree-cfg.h.
11972         (strlen_check_and_optimize_stmt): Add new argument cleanup_eh.
11973         (strlen_dom_walker): Add new member variable m_cleanup_cfg.
11974         (strlen_dom_walker::strlen_dom_walker): Initialize m_cleanup_cfg
11975         to false.
11976         (strlen_dom_walker::before_dom_children): Call
11977         gimple_purge_dead_eh_edges. Dump tranformation with details
11978         dump flags.
11979         (strlen_dom_walker::before_dom_children): Update call by adding
11980         new argument cleanup_eh.
11981         (pass_strlen::execute): Return TODO_cleanup_cfg if needed.
11982
11983 2018-01-03  Martin Liska  <mliska@suse.cz>
11984
11985         PR ipa/83549
11986         * cif-code.def (VARIADIC_THUNK): New enum value.
11987         * ipa-fnsummary.c (compute_fn_summary): Do not inline variadic
11988         thunks.
11989
11990 2018-01-03  Jan Beulich  <jbeulich@suse.com>
11991
11992         * sse.md (mov<mode>_internal): Tighten condition for when to use
11993         vmovdqu<ssescalarsize> for TI and OI modes.
11994
11995 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
11996
11997         Update copyright years.
11998
11999 2018-01-03  Martin Liska  <mliska@suse.cz>
12000
12001         PR ipa/83594
12002         * ipa-visibility.c (function_and_variable_visibility): Skip
12003         functions with noipa attribure.
12004
12005 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
12006
12007         * gcc.c (process_command): Update copyright notice dates.
12008         * gcov-dump.c (print_version): Ditto.
12009         * gcov.c (print_version): Ditto.
12010         * gcov-tool.c (print_version): Ditto.
12011         * gengtype.c (create_file): Ditto.
12012         * doc/cpp.texi: Bump @copying's copyright year.
12013         * doc/cppinternals.texi: Ditto.
12014         * doc/gcc.texi: Ditto.
12015         * doc/gccint.texi: Ditto.
12016         * doc/gcov.texi: Ditto.
12017         * doc/install.texi: Ditto.
12018         * doc/invoke.texi: Ditto.
12019
12020 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12021
12022         * vector-builder.h (vector_builder::m_full_nelts): Change from
12023         unsigned int to poly_uint64.
12024         (vector_builder::full_nelts): Update prototype accordingly.
12025         (vector_builder::new_vector): Likewise.
12026         (vector_builder::encoded_full_vector_p): Handle polynomial full_nelts.
12027         (vector_builder::operator ==): Likewise.
12028         (vector_builder::finalize): Likewise.
12029         * int-vector-builder.h (int_vector_builder::int_vector_builder):
12030         Take the number of elements as a poly_uint64 rather than an
12031         unsigned int.
12032         * vec-perm-indices.h (vec_perm_indices::m_nelts_per_input): Change
12033         from unsigned int to poly_uint64.
12034         (vec_perm_indices::vec_perm_indices): Update prototype accordingly.
12035         (vec_perm_indices::new_vector): Likewise.
12036         (vec_perm_indices::length): Likewise.
12037         (vec_perm_indices::nelts_per_input): Likewise.
12038         (vec_perm_indices::input_nelts): Likewise.
12039         * vec-perm-indices.c (vec_perm_indices::new_vector): Take the
12040         number of elements per input as a poly_uint64 rather than an
12041         unsigned int.  Use the original encoding for variable-length
12042         vectors, rather than clamping each individual element.
12043         For the second and subsequent elements in each pattern,
12044         clamp the step and base before clamping their sum.
12045         (vec_perm_indices::series_p): Handle polynomial element counts.
12046         (vec_perm_indices::all_in_range_p): Likewise.
12047         (vec_perm_indices_to_tree): Likewise.
12048         (vec_perm_indices_to_rtx): Likewise.
12049         * tree-vect-stmts.c (vect_gen_perm_mask_any): Likewise.
12050         * tree-vector-builder.c (tree_vector_builder::new_unary_operation)
12051         (tree_vector_builder::new_binary_operation): Handle polynomial
12052         element counts.  Return false if we need to know the number
12053         of elements at compile time.
12054         * fold-const.c (fold_vec_perm): Punt if the number of elements
12055         isn't known at compile time.
12056
12057 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12058
12059         * vec-perm-indices.h (vec_perm_builder): Change element type
12060         from HOST_WIDE_INT to poly_int64.
12061         (vec_perm_indices::element_type): Update accordingly.
12062         (vec_perm_indices::clamp): Handle polynomial element_types.
12063         * vec-perm-indices.c (vec_perm_indices::series_p): Likewise.
12064         (vec_perm_indices::all_in_range_p): Likewise.
12065         (tree_to_vec_perm_builder): Check for poly_int64 trees rather
12066         than shwi trees.
12067         * vector-builder.h (vector_builder::stepped_sequence_p): Handle
12068         polynomial vec_perm_indices element types.
12069         * int-vector-builder.h (int_vector_builder::equal_p): Likewise.
12070         * fold-const.c (fold_vec_perm): Likewise.
12071         * optabs.c (shift_amt_for_vec_perm_mask): Likewise.
12072         * tree-vect-generic.c (lower_vec_perm): Likewise.
12073         * tree-vect-slp.c (vect_transform_slp_perm_load): Likewise.
12074         * config/aarch64/aarch64.c (aarch64_evpc_tbl): Cast d->perm
12075         element type to HOST_WIDE_INT.
12076
12077 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12078             Alan Hayward  <alan.hayward@arm.com>
12079             David Sherwood  <david.sherwood@arm.com>
12080
12081         * alias.c (addr_side_effect_eval): Take the size as a poly_int64
12082         rather than an int.  Use plus_constant.
12083         (memrefs_conflict_p): Take the sizes as poly_int64s rather than ints.
12084         Take the offset "c" as a poly_int64 rather than a HOST_WIDE_INT.
12085
12086 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12087             Alan Hayward  <alan.hayward@arm.com>
12088             David Sherwood  <david.sherwood@arm.com>
12089
12090         * calls.c (emit_call_1, expand_call): Change struct_value_size from
12091         a HOST_WIDE_INT to a poly_int64.
12092
12093 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12094             Alan Hayward  <alan.hayward@arm.com>
12095             David Sherwood  <david.sherwood@arm.com>
12096
12097         * calls.c (load_register_parameters): Cope with polynomial
12098         mode sizes.  Require a constant size for BLKmode parameters
12099         that aren't described by a PARALLEL.  If BLOCK_REG_PADDING
12100         forces a parameter to be padded at the lsb end in order to
12101         fill a complete number of words, require the parameter size
12102         to be ordered wrt UNITS_PER_WORD.
12103
12104 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12105             Alan Hayward  <alan.hayward@arm.com>
12106             David Sherwood  <david.sherwood@arm.com>
12107
12108         * reload1.c (spill_stack_slot_width): Change element type
12109         from unsigned int to poly_uint64_pod.
12110         (alter_reg): Treat mode sizes as polynomial.
12111
12112 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12113             Alan Hayward  <alan.hayward@arm.com>
12114             David Sherwood  <david.sherwood@arm.com>
12115
12116         * reload.c (complex_word_subreg_p): New function.
12117         (reload_inner_reg_of_subreg, push_reload): Use it.
12118
12119 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12120             Alan Hayward  <alan.hayward@arm.com>
12121             David Sherwood  <david.sherwood@arm.com>
12122
12123         * lra-constraints.c (process_alt_operands): Reject matched
12124         operands whose sizes aren't ordered.
12125         (match_reload): Refer to this check here.
12126
12127 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12128             Alan Hayward  <alan.hayward@arm.com>
12129             David Sherwood  <david.sherwood@arm.com>
12130
12131         * builtins.c (expand_ifn_atomic_compare_exchange_into_call): Assert
12132         that the mode size is in the set {1, 2, 4, 8, 16}.
12133
12134 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12135             Alan Hayward  <alan.hayward@arm.com>
12136             David Sherwood  <david.sherwood@arm.com>
12137
12138         * var-tracking.c (adjust_mems): Treat mode sizes as polynomial.
12139         Use plus_constant instead of gen_rtx_PLUS.
12140
12141 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12142             Alan Hayward  <alan.hayward@arm.com>
12143             David Sherwood  <david.sherwood@arm.com>
12144
12145         * config/cr16/cr16-protos.h (cr16_push_rounding): Declare.
12146         * config/cr16/cr16.h (PUSH_ROUNDING): Move implementation to...
12147         * config/cr16/cr16.c (cr16_push_rounding): ...this new function.
12148         * config/h8300/h8300-protos.h (h8300_push_rounding): Declare.
12149         * config/h8300/h8300.h (PUSH_ROUNDING): Move implementation to...
12150         * config/h8300/h8300.c (h8300_push_rounding): ...this new function.
12151         * config/i386/i386-protos.h (ix86_push_rounding): Declare.
12152         * config/i386/i386.h (PUSH_ROUNDING): Move implementation to...
12153         * config/i386/i386.c (ix86_push_rounding): ...this new function.
12154         * config/m32c/m32c-protos.h (m32c_push_rounding): Take and return
12155         a poly_int64.
12156         * config/m32c/m32c.c (m32c_push_rounding): Likewise.
12157         * config/m68k/m68k-protos.h (m68k_push_rounding): Declare.
12158         * config/m68k/m68k.h (PUSH_ROUNDING): Move implementation to...
12159         * config/m68k/m68k.c (m68k_push_rounding): ...this new function.
12160         * config/pdp11/pdp11-protos.h (pdp11_push_rounding): Declare.
12161         * config/pdp11/pdp11.h (PUSH_ROUNDING): Move implementation to...
12162         * config/pdp11/pdp11.c (pdp11_push_rounding): ...this new function.
12163         * config/stormy16/stormy16-protos.h (xstormy16_push_rounding): Declare.
12164         * config/stormy16/stormy16.h (PUSH_ROUNDING): Move implementation to...
12165         * config/stormy16/stormy16.c (xstormy16_push_rounding): ...this new
12166         function.
12167         * expr.c (emit_move_resolve_push): Treat the input and result
12168         of PUSH_ROUNDING as a poly_int64.
12169         (emit_move_complex_push, emit_single_push_insn_1): Likewise.
12170         (emit_push_insn): Likewise.
12171         * lra-eliminations.c (mark_not_eliminable): Likewise.
12172         * recog.c (push_operand): Likewise.
12173         * reload1.c (elimination_effects): Likewise.
12174         * rtlanal.c (nonzero_bits1): Likewise.
12175         * calls.c (store_one_arg): Likewise.  Require the padding to be
12176         known at compile time.
12177
12178 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12179             Alan Hayward  <alan.hayward@arm.com>
12180             David Sherwood  <david.sherwood@arm.com>
12181
12182         * expr.c (emit_single_push_insn_1): Treat mode sizes as polynomial.
12183         Use plus_constant instead of gen_rtx_PLUS.
12184
12185 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12186             Alan Hayward  <alan.hayward@arm.com>
12187             David Sherwood  <david.sherwood@arm.com>
12188
12189         * auto-inc-dec.c (set_inc_state): Take the mode size as a poly_int64
12190         rather than an int.
12191
12192 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12193             Alan Hayward  <alan.hayward@arm.com>
12194             David Sherwood  <david.sherwood@arm.com>
12195
12196         * expr.c (expand_expr_real_1): Use tree_to_poly_uint64
12197         instead of int_size_in_bytes when handling VIEW_CONVERT_EXPRs
12198         via stack temporaries.  Treat the mode size as polynomial too.
12199
12200 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12201             Alan Hayward  <alan.hayward@arm.com>
12202             David Sherwood  <david.sherwood@arm.com>
12203
12204         * expr.c (expand_expr_real_2): When handling conversions involving
12205         unions, apply tree_to_poly_uint64 to the TYPE_SIZE rather than
12206         multiplying int_size_in_bytes by BITS_PER_UNIT.  Treat GET_MODE_BISIZE
12207         as a poly_uint64 too.
12208
12209 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12210             Alan Hayward  <alan.hayward@arm.com>
12211             David Sherwood  <david.sherwood@arm.com>
12212
12213         * rtlanal.c (subreg_get_info): Handle polynomial mode sizes.
12214
12215 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12216             Alan Hayward  <alan.hayward@arm.com>
12217             David Sherwood  <david.sherwood@arm.com>
12218
12219         * combine.c (can_change_dest_mode): Handle polynomial
12220         REGMODE_NATURAL_SIZE.
12221         * expmed.c (store_bit_field_1): Likewise.
12222         * expr.c (store_constructor): Likewise.
12223         * emit-rtl.c (validate_subreg): Operate on polynomial mode sizes
12224         and polynomial REGMODE_NATURAL_SIZE.
12225         (gen_lowpart_common): Likewise.
12226         * reginfo.c (record_subregs_of_mode): Likewise.
12227         * rtlanal.c (read_modify_subreg_p): Likewise.
12228
12229 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12230             Alan Hayward  <alan.hayward@arm.com>
12231             David Sherwood  <david.sherwood@arm.com>
12232
12233         * internal-fn.c (expand_vector_ubsan_overflow): Handle polynomial
12234         numbers of elements.
12235
12236 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12237             Alan Hayward  <alan.hayward@arm.com>
12238             David Sherwood  <david.sherwood@arm.com>
12239
12240         * match.pd: Cope with polynomial numbers of vector elements.
12241
12242 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12243             Alan Hayward  <alan.hayward@arm.com>
12244             David Sherwood  <david.sherwood@arm.com>
12245
12246         * fold-const.c (fold_indirect_ref_1): Handle polynomial offsets
12247         in a POINTER_PLUS_EXPR.
12248
12249 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12250             Alan Hayward  <alan.hayward@arm.com>
12251             David Sherwood  <david.sherwood@arm.com>
12252
12253         * omp-simd-clone.c (simd_clone_subparts): New function.
12254         (simd_clone_init_simd_arrays): Use it instead of TYPE_VECTOR_SUBPARTS.
12255         (ipa_simd_modify_function_body): Likewise.
12256
12257 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12258             Alan Hayward  <alan.hayward@arm.com>
12259             David Sherwood  <david.sherwood@arm.com>
12260
12261         * tree-vect-generic.c (nunits_for_known_piecewise_op): New function.
12262         (expand_vector_piecewise): Use it instead of TYPE_VECTOR_SUBPARTS.
12263         (expand_vector_addition, add_rshift, expand_vector_divmod): Likewise.
12264         (expand_vector_condition, vector_element): Likewise.
12265         (subparts_gt): New function.
12266         (get_compute_type): Use subparts_gt.
12267         (count_type_subparts): Delete.
12268         (expand_vector_operations_1): Use subparts_gt instead of
12269         count_type_subparts.
12270
12271 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12272             Alan Hayward  <alan.hayward@arm.com>
12273             David Sherwood  <david.sherwood@arm.com>
12274
12275         * tree-vect-data-refs.c (vect_no_alias_p): Replace with...
12276         (vect_compile_time_alias): ...this new function.  Do the calculation
12277         on poly_ints rather than trees.
12278         (vect_prune_runtime_alias_test_list): Update call accordingly.
12279
12280 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12281             Alan Hayward  <alan.hayward@arm.com>
12282             David Sherwood  <david.sherwood@arm.com>
12283
12284         * tree-vect-slp.c (vect_build_slp_tree_1): Handle polynomial
12285         numbers of units.
12286         (vect_schedule_slp_instance): Likewise.
12287
12288 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12289             Alan Hayward  <alan.hayward@arm.com>
12290             David Sherwood  <david.sherwood@arm.com>
12291
12292         * tree-vect-slp.c (vect_get_and_check_slp_defs): Reject
12293         constant and extern definitions for variable-length vectors.
12294         (vect_get_constant_vectors): Note that the number of units
12295         is known to be constant.
12296
12297 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12298             Alan Hayward  <alan.hayward@arm.com>
12299             David Sherwood  <david.sherwood@arm.com>
12300
12301         * tree-vect-stmts.c (vectorizable_conversion): Treat the number
12302         of units as polynomial.  Choose between WIDE and NARROW based
12303         on multiple_p.
12304
12305 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12306             Alan Hayward  <alan.hayward@arm.com>
12307             David Sherwood  <david.sherwood@arm.com>
12308
12309         * tree-vect-stmts.c (simd_clone_subparts): New function.
12310         (vectorizable_simd_clone_call): Use it instead of TYPE_VECTOR_SUBPARTS.
12311
12312 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12313             Alan Hayward  <alan.hayward@arm.com>
12314             David Sherwood  <david.sherwood@arm.com>
12315
12316         * tree-vect-stmts.c (vectorizable_call): Treat the number of
12317         vectors as polynomial.  Use build_index_vector for
12318         IFN_GOMP_SIMD_LANE.
12319
12320 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12321             Alan Hayward  <alan.hayward@arm.com>
12322             David Sherwood  <david.sherwood@arm.com>
12323
12324         * tree-vect-stmts.c (get_load_store_type): Treat the number of
12325         units as polynomial.  Reject VMAT_ELEMENTWISE and VMAT_STRIDED_SLP
12326         for variable-length vectors.
12327         (vectorizable_mask_load_store): Treat the number of units as
12328         polynomial, asserting that it is constant if the condition has
12329         already been enforced.
12330         (vectorizable_store, vectorizable_load): Likewise.
12331
12332 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12333             Alan Hayward  <alan.hayward@arm.com>
12334             David Sherwood  <david.sherwood@arm.com>
12335
12336         * tree-vect-loop.c (vectorizable_live_operation): Treat the number
12337         of units as polynomial.  Punt if we can't tell at compile time
12338         which vector contains the final result.
12339
12340 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12341             Alan Hayward  <alan.hayward@arm.com>
12342             David Sherwood  <david.sherwood@arm.com>
12343
12344         * tree-vect-loop.c (vectorizable_induction): Treat the number
12345         of units as polynomial.  Punt on SLP inductions.  Use an integer
12346         VEC_SERIES_EXPR for variable-length integer reductions.  Use a
12347         cast of such a series for variable-length floating-point
12348         reductions.
12349
12350 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12351             Alan Hayward  <alan.hayward@arm.com>
12352             David Sherwood  <david.sherwood@arm.com>
12353
12354         * tree.h (build_index_vector): Declare.
12355         * tree.c (build_index_vector): New function.
12356         * tree-vect-loop.c (get_initial_defs_for_reduction): Treat the number
12357         of units as polynomial, forcibly converting it to a constant if
12358         vectorizable_reduction has already enforced the condition.
12359         (vect_create_epilog_for_reduction): Likewise.  Use build_index_vector
12360         to create a {1,2,3,...} vector.
12361         (vectorizable_reduction): Treat the number of units as polynomial.
12362         Choose vectype_in based on the largest scalar element size rather
12363         than the smallest number of units.  Enforce the restrictions
12364         relied on above.
12365
12366 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12367             Alan Hayward  <alan.hayward@arm.com>
12368             David Sherwood  <david.sherwood@arm.com>
12369
12370         * tree-vect-data-refs.c (vector_alignment_reachable_p): Treat the
12371         number of units as polynomial.
12372
12373 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12374             Alan Hayward  <alan.hayward@arm.com>
12375             David Sherwood  <david.sherwood@arm.com>
12376
12377         * target.h (vector_sizes, auto_vector_sizes): New typedefs.
12378         * target.def (autovectorize_vector_sizes): Return the vector sizes
12379         by pointer, using vector_sizes rather than a bitmask.
12380         * targhooks.h (default_autovectorize_vector_sizes): Update accordingly.
12381         * targhooks.c (default_autovectorize_vector_sizes): Likewise.
12382         * config/aarch64/aarch64.c (aarch64_autovectorize_vector_sizes):
12383         Likewise.
12384         * config/arc/arc.c (arc_autovectorize_vector_sizes): Likewise.
12385         * config/arm/arm.c (arm_autovectorize_vector_sizes): Likewise.
12386         * config/i386/i386.c (ix86_autovectorize_vector_sizes): Likewise.
12387         * config/mips/mips.c (mips_autovectorize_vector_sizes): Likewise.
12388         * omp-general.c (omp_max_vf): Likewise.
12389         * omp-low.c (omp_clause_aligned_alignment): Likewise.
12390         * optabs-query.c (can_vec_mask_load_store_p): Likewise.
12391         * tree-vect-loop.c (vect_analyze_loop): Likewise.
12392         * tree-vect-slp.c (vect_slp_bb): Likewise.
12393         * doc/tm.texi: Regenerate.
12394         * tree-vectorizer.h (current_vector_size): Change from an unsigned int
12395         to a poly_uint64.
12396         * tree-vect-stmts.c (get_vectype_for_scalar_type_and_size): Take
12397         the vector size as a poly_uint64 rather than an unsigned int.
12398         (current_vector_size): Change from an unsigned int to a poly_uint64.
12399         (get_vectype_for_scalar_type): Update accordingly.
12400         * tree.h (build_truth_vector_type): Take the size and number of
12401         units as a poly_uint64 rather than an unsigned int.
12402         (build_vector_type): Add a temporary overload that takes
12403         the number of units as a poly_uint64 rather than an unsigned int.
12404         * tree.c (make_vector_type): Likewise.
12405         (build_truth_vector_type): Take the number of units as a poly_uint64
12406         rather than an unsigned int.
12407
12408 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12409             Alan Hayward  <alan.hayward@arm.com>
12410             David Sherwood  <david.sherwood@arm.com>
12411
12412         * target.def (get_mask_mode): Take the number of units and length
12413         as poly_uint64s rather than unsigned ints.
12414         * targhooks.h (default_get_mask_mode): Update accordingly.
12415         * targhooks.c (default_get_mask_mode): Likewise.
12416         * config/i386/i386.c (ix86_get_mask_mode): Likewise.
12417         * doc/tm.texi: Regenerate.
12418
12419 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12420             Alan Hayward  <alan.hayward@arm.com>
12421             David Sherwood  <david.sherwood@arm.com>
12422
12423         * omp-general.h (omp_max_vf): Return a poly_uint64 instead of an int.
12424         * omp-general.c (omp_max_vf): Likewise.
12425         * omp-expand.c (omp_adjust_chunk_size): Update call to omp_max_vf.
12426         (expand_omp_simd): Handle polynomial safelen.
12427         * omp-low.c (omplow_simd_context): Add a default constructor.
12428         (omplow_simd_context::max_vf): Change from int to poly_uint64.
12429         (lower_rec_simd_input_clauses): Update accordingly.
12430         (lower_rec_input_clauses): Likewise.
12431
12432 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12433             Alan Hayward  <alan.hayward@arm.com>
12434             David Sherwood  <david.sherwood@arm.com>
12435
12436         * tree-vectorizer.h (vect_nunits_for_cost): New function.
12437         * tree-vect-loop.c (vect_model_reduction_cost): Use it.
12438         * tree-vect-slp.c (vect_analyze_slp_cost_1): Likewise.
12439         (vect_analyze_slp_cost): Likewise.
12440         * tree-vect-stmts.c (vect_model_store_cost): Likewise.
12441         (vect_model_load_cost): Likewise.
12442
12443 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12444             Alan Hayward  <alan.hayward@arm.com>
12445             David Sherwood  <david.sherwood@arm.com>
12446
12447         * tree-vect-slp.c (vect_record_max_nunits, vect_build_slp_tree_1)
12448         (vect_build_slp_tree_2, vect_build_slp_tree): Change max_nunits
12449         from an unsigned int * to a poly_uint64_pod *.
12450         (calculate_unrolling_factor): New function.
12451         (vect_analyze_slp_instance): Use it.  Track polynomial max_nunits.
12452
12453 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12454             Alan Hayward  <alan.hayward@arm.com>
12455             David Sherwood  <david.sherwood@arm.com>
12456
12457         * tree-vectorizer.h (_slp_instance::unrolling_factor): Change
12458         from an unsigned int to a poly_uint64.
12459         (_loop_vec_info::slp_unrolling_factor): Likewise.
12460         (_loop_vec_info::vectorization_factor): Change from an int
12461         to a poly_uint64.
12462         (MAX_VECTORIZATION_FACTOR): Bump from 64 to INT_MAX.
12463         (vect_get_num_vectors): New function.
12464         (vect_update_max_nunits, vect_vf_for_cost): Likewise.
12465         (vect_get_num_copies): Use vect_get_num_vectors.
12466         (vect_analyze_data_ref_dependences): Change max_vf from an int *
12467         to an unsigned int *.
12468         (vect_analyze_data_refs): Change min_vf from an int * to a
12469         poly_uint64 *.
12470         (vect_transform_slp_perm_load): Take the vf as a poly_uint64 rather
12471         than an unsigned HOST_WIDE_INT.
12472         * tree-vect-data-refs.c (vect_analyze_possibly_independent_ddr)
12473         (vect_analyze_data_ref_dependence): Change max_vf from an int *
12474         to an unsigned int *.
12475         (vect_analyze_data_ref_dependences): Likewise.
12476         (vect_compute_data_ref_alignment): Handle polynomial vf.
12477         (vect_enhance_data_refs_alignment): Likewise.
12478         (vect_prune_runtime_alias_test_list): Likewise.
12479         (vect_shift_permute_load_chain): Likewise.
12480         (vect_supportable_dr_alignment): Likewise.
12481         (dependence_distance_ge_vf): Take the vectorization factor as a
12482         poly_uint64 rather than an unsigned HOST_WIDE_INT.
12483         (vect_analyze_data_refs): Change min_vf from an int * to a
12484         poly_uint64 *.
12485         * tree-vect-loop-manip.c (vect_gen_scalar_loop_niters): Take
12486         vfm1 as a poly_uint64 rather than an int.  Make the same change
12487         for the returned bound_scalar.
12488         (vect_gen_vector_loop_niters): Handle polynomial vf.
12489         (vect_do_peeling): Likewise.  Update call to
12490         vect_gen_scalar_loop_niters and handle polynomial bound_scalars.
12491         (vect_gen_vector_loop_niters_mult_vf): Assert that the vf must
12492         be constant.
12493         * tree-vect-loop.c (vect_determine_vectorization_factor)
12494         (vect_update_vf_for_slp, vect_analyze_loop_2): Handle polynomial vf.
12495         (vect_get_known_peeling_cost): Likewise.
12496         (vect_estimate_min_profitable_iters, vectorizable_reduction): Likewise.
12497         (vect_worthwhile_without_simd_p, vectorizable_induction): Likewise.
12498         (vect_transform_loop): Likewise.  Use the lowest possible VF when
12499         updating the upper bounds of the loop.
12500         (vect_min_worthwhile_factor): Make static.  Return an unsigned int
12501         rather than an int.
12502         * tree-vect-slp.c (vect_attempt_slp_rearrange_stmts): Cope with
12503         polynomial unroll factors.
12504         (vect_analyze_slp_cost_1, vect_analyze_slp_instance): Likewise.
12505         (vect_make_slp_decision): Likewise.
12506         (vect_supported_load_permutation_p): Likewise, and polynomial
12507         vf too.
12508         (vect_analyze_slp_cost): Handle polynomial vf.
12509         (vect_slp_analyze_node_operations): Likewise.
12510         (vect_slp_analyze_bb_1): Likewise.
12511         (vect_transform_slp_perm_load): Take the vf as a poly_uint64 rather
12512         than an unsigned HOST_WIDE_INT.
12513         * tree-vect-stmts.c (vectorizable_simd_clone_call, vectorizable_store)
12514         (vectorizable_load): Handle polynomial vf.
12515         * tree-vectorizer.c (simduid_to_vf::vf): Change from an int to
12516         a poly_uint64.
12517         (adjust_simduid_builtins, shrink_simd_arrays): Update accordingly.
12518
12519 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12520             Alan Hayward  <alan.hayward@arm.com>
12521             David Sherwood  <david.sherwood@arm.com>
12522
12523         * match.pd: Handle bit operations involving three constants
12524         and try to fold one pair.
12525
12526 2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
12527
12528         * tree-vect-loop-manip.c: Include gimple-fold.h.
12529         (slpeel_make_loop_iterate_ntimes): Add step, final_iv and
12530         niters_maybe_zero parameters.  Handle other cases besides a step of 1.
12531         (vect_gen_vector_loop_niters): Add a step_vector_ptr parameter.
12532         Add a path that uses a step of VF instead of 1, but disable it
12533         for now.
12534         (vect_do_peeling): Add step_vector, niters_vector_mult_vf_var
12535         and niters_no_overflow parameters.  Update calls to
12536         slpeel_make_loop_iterate_ntimes and vect_gen_vector_loop_niters.
12537         Create a new SSA name if the latter choses to use a ste other
12538         than zero, and return it via niters_vector_mult_vf_var.
12539         * tree-vect-loop.c (vect_transform_loop): Update calls to
12540         vect_do_peeling, vect_gen_vector_loop_niters and
12541         slpeel_make_loop_iterate_ntimes.
12542         * tree-vectorizer.h (slpeel_make_loop_iterate_ntimes, vect_do_peeling)
12543         (vect_gen_vector_loop_niters): Update declarations after above changes.
12544
12545 2018-01-02  Michael Meissner  <meissner@linux.vnet.ibm.com>
12546
12547         * config/rs6000/rs6000.md (floor<mode>2): Add support for IEEE
12548         128-bit round to integer instructions.
12549         (ceil<mode>2): Likewise.
12550         (btrunc<mode>2): Likewise.
12551         (round<mode>2): Likewise.
12552
12553 2018-01-02  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
12554
12555         * config/rs6000/rs6000-string.c (expand_block_move): Allow the use of
12556         unaligned VSX load/store on P8/P9.
12557         (expand_block_clear): Allow the use of unaligned VSX
12558         load/store on P8/P9.
12559
12560 2018-01-02  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
12561
12562         * config/rs6000/rs6000-p8swap.c (swap_feeds_both_load_and_store):
12563         New function.
12564         (rs6000_analyze_swaps): Mark a web unoptimizable if it contains a
12565         swap associated with both a load and a store.
12566
12567 2018-01-02  Andrew Waterman  <andrew@sifive.com>
12568
12569         * config/riscv/linux.h (ICACHE_FLUSH_FUNC): New.
12570         * config/riscv/riscv.md (clear_cache): Use it.
12571
12572 2018-01-02  Artyom Skrobov  <tyomitch@gmail.com>
12573
12574         * web.c: Remove out-of-date comment.
12575
12576 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
12577
12578         * expr.c (fixup_args_size_notes): Check that any existing
12579         REG_ARGS_SIZE notes are correct, and don't try to re-add them.
12580         (emit_single_push_insn_1): Move stack_pointer_delta adjustment to...
12581         (emit_single_push_insn): ...here.
12582
12583 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
12584
12585         * rtl.h (CONST_VECTOR_ELT): Redefine to const_vector_elt.
12586         (const_vector_encoded_nelts): New function.
12587         (CONST_VECTOR_NUNITS): Redefine to use GET_MODE_NUNITS.
12588         (const_vector_int_elt, const_vector_elt): Declare.
12589         * emit-rtl.c (const_vector_int_elt_1): New function.
12590         (const_vector_elt): Likewise.
12591         * simplify-rtx.c (simplify_immed_subreg): Avoid taking the address
12592         of CONST_VECTOR_ELT.
12593
12594 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
12595
12596         * expr.c: Include rtx-vector-builder.h.
12597         (const_vector_mask_from_tree): Use rtx_vector_builder and operate
12598         directly on the tree encoding.
12599         (const_vector_from_tree): Likewise.
12600         * optabs.c: Include rtx-vector-builder.h.
12601         (expand_vec_perm_var): Use rtx_vector_builder and create a repeating
12602         sequence of "u" values.
12603         * vec-perm-indices.c: Include rtx-vector-builder.h.
12604         (vec_perm_indices_to_rtx): Use rtx_vector_builder and operate
12605         directly on the vec_perm_indices encoding.
12606
12607 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
12608
12609         * doc/rtl.texi (const_vector): Describe new encoding scheme.
12610         * Makefile.in (OBJS): Add rtx-vector-builder.o.
12611         * rtx-vector-builder.h: New file.
12612         * rtx-vector-builder.c: Likewise.
12613         * rtl.h (rtx_def::u2): Add a const_vector field.
12614         (CONST_VECTOR_NPATTERNS): New macro.
12615         (CONST_VECTOR_NELTS_PER_PATTERN): Likewise.
12616         (CONST_VECTOR_DUPLICATE_P): Likewise.
12617         (CONST_VECTOR_STEPPED_P): Likewise.
12618         (CONST_VECTOR_ENCODED_ELT): Likewise.
12619         (const_vec_duplicate_p): Check for a duplicated vector encoding.
12620         (unwrap_const_vec_duplicate): Likewise.
12621         (const_vec_series_p): Check for a non-duplicated vector encoding.
12622         Say that the function only returns true for integer vectors.
12623         * emit-rtl.c: Include rtx-vector-builder.h.
12624         (gen_const_vec_duplicate_1): Delete.
12625         (gen_const_vector): Call gen_const_vec_duplicate instead of
12626         gen_const_vec_duplicate_1.
12627         (const_vec_series_p_1): Operate directly on the CONST_VECTOR encoding.
12628         (gen_const_vec_duplicate): Use rtx_vector_builder.
12629         (gen_const_vec_series): Likewise.
12630         (gen_rtx_CONST_VECTOR): Likewise.
12631         * config/powerpcspe/powerpcspe.c: Include rtx-vector-builder.h.
12632         (swap_const_vector_halves): Take an rtx pointer rather than rtx.
12633         Build a new vector rather than modifying a CONST_VECTOR in-place.
12634         (handle_special_swappables): Update call accordingly.
12635         * config/rs6000/rs6000-p8swap.c: Include rtx-vector-builder.h.
12636         (swap_const_vector_halves): Take an rtx pointer rather than rtx.
12637         Build a new vector rather than modifying a CONST_VECTOR in-place.
12638         (handle_special_swappables): Update call accordingly.
12639
12640 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
12641
12642         * simplify-rtx.c (simplify_const_binary_operation): Use
12643         CONST_VECTOR_ELT instead of XVECEXP.
12644
12645 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
12646
12647         * tree-cfg.c (verify_gimple_assign_ternary): Allow the size of
12648         the selector elements to be different from the data elements
12649         if the selector is a VECTOR_CST.
12650         * tree-vect-stmts.c (vect_gen_perm_mask_any): Use a vector of
12651         ssizetype for the selector.
12652
12653 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
12654
12655         * optabs.c (shift_amt_for_vec_perm_mask): Try using series_p
12656         before testing each element individually.
12657         * tree-vect-generic.c (lower_vec_perm): Likewise.
12658
12659 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
12660
12661         * selftest.h (selftest::vec_perm_indices_c_tests): Declare.
12662         * selftest-run-tests.c (selftest::run_tests): Call it.
12663         * vector-builder.h (vector_builder::operator ==): New function.
12664         (vector_builder::operator !=): Likewise.
12665         * vec-perm-indices.h (vec_perm_indices::series_p): Declare.
12666         (vec_perm_indices::all_from_input_p): New function.
12667         * vec-perm-indices.c (vec_perm_indices::series_p): Likewise.
12668         (test_vec_perm_12, selftest::vec_perm_indices_c_tests): Likewise.
12669         * fold-const.c (fold_ternary_loc): Use tree_to_vec_perm_builder
12670         instead of reading the VECTOR_CST directly.  Detect whether both
12671         vector inputs are the same before constructing the vec_perm_indices,
12672         and update the number of inputs argument accordingly.  Use the
12673         utility functions added above.  Only construct sel2 if we need to.
12674
12675 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
12676
12677         * optabs.c (expand_vec_perm_var): Use an explicit encoding for
12678         the broadcast of the low byte.
12679         (expand_mult_highpart): Use an explicit encoding for the permutes.
12680         * optabs-query.c (can_mult_highpart_p): Likewise.
12681         * tree-vect-loop.c (calc_vec_perm_mask_for_shift): Likewise.
12682         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
12683         (vectorizable_bswap): Likewise.
12684         * tree-vect-data-refs.c (vect_grouped_store_supported): Use an
12685         explicit encoding for the power-of-2 permutes.
12686         (vect_permute_store_chain): Likewise.
12687         (vect_grouped_load_supported): Likewise.
12688         (vect_permute_load_chain): Likewise.
12689
12690 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
12691
12692         * vec-perm-indices.h (vec_perm_indices_to_tree): Declare.
12693         * vec-perm-indices.c (vec_perm_indices_to_tree): New function.
12694         * tree-ssa-forwprop.c (simplify_vector_constructor): Use it.
12695         * tree-vect-slp.c (vect_transform_slp_perm_load): Likewise.
12696         * tree-vect-stmts.c (vectorizable_bswap): Likewise.
12697         (vect_gen_perm_mask_any): Likewise.
12698
12699 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
12700
12701         * int-vector-builder.h: New file.
12702         * vec-perm-indices.h: Include int-vector-builder.h.
12703         (vec_perm_indices): Redefine as an int_vector_builder.
12704         (auto_vec_perm_indices): Delete.
12705         (vec_perm_builder): Redefine as a stand-alone class.
12706         (vec_perm_indices::vec_perm_indices): New function.
12707         (vec_perm_indices::clamp): Likewise.
12708         * vec-perm-indices.c: Include fold-const.h and tree-vector-builder.h.
12709         (vec_perm_indices::new_vector): New function.
12710         (vec_perm_indices::new_expanded_vector): Update for new
12711         vec_perm_indices class.
12712         (vec_perm_indices::rotate_inputs): New function.
12713         (vec_perm_indices::all_in_range_p): Operate directly on the
12714         encoded form, without computing elided elements.
12715         (tree_to_vec_perm_builder): Operate directly on the VECTOR_CST
12716         encoding.  Update for new vec_perm_indices class.
12717         * optabs.c (expand_vec_perm_const): Create a vec_perm_indices for
12718         the given vec_perm_builder.
12719         (expand_vec_perm_var): Update vec_perm_builder constructor.
12720         (expand_mult_highpart): Use vec_perm_builder instead of
12721         auto_vec_perm_indices.
12722         * optabs-query.c (can_mult_highpart_p): Use vec_perm_builder and
12723         vec_perm_indices instead of auto_vec_perm_indices.  Use a single
12724         or double series encoding as appropriate.
12725         * fold-const.c (fold_ternary_loc): Use vec_perm_builder and
12726         vec_perm_indices instead of auto_vec_perm_indices.
12727         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
12728         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
12729         (vect_permute_store_chain): Likewise.
12730         (vect_grouped_load_supported): Likewise.
12731         (vect_permute_load_chain): Likewise.
12732         (vect_shift_permute_load_chain): Likewise.
12733         * tree-vect-slp.c (vect_build_slp_tree_1): Likewise.
12734         (vect_transform_slp_perm_load): Likewise.
12735         (vect_schedule_slp_instance): Likewise.
12736         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
12737         (vectorizable_mask_load_store): Likewise.
12738         (vectorizable_bswap): Likewise.
12739         (vectorizable_store): Likewise.
12740         (vectorizable_load): Likewise.
12741         * tree-vect-generic.c (lower_vec_perm): Use vec_perm_builder and
12742         vec_perm_indices instead of auto_vec_perm_indices.  Use
12743         tree_to_vec_perm_builder to read the vector from a tree.
12744         * tree-vect-loop.c (calc_vec_perm_mask_for_shift): Take a
12745         vec_perm_builder instead of a vec_perm_indices.
12746         (have_whole_vector_shift): Use vec_perm_builder and
12747         vec_perm_indices instead of auto_vec_perm_indices.  Leave the
12748         truncation to calc_vec_perm_mask_for_shift.
12749         (vect_create_epilog_for_reduction): Likewise.
12750         * config/aarch64/aarch64.c (expand_vec_perm_d::perm): Change
12751         from auto_vec_perm_indices to vec_perm_indices.
12752         (aarch64_expand_vec_perm_const_1): Use rotate_inputs on d.perm
12753         instead of changing individual elements.
12754         (aarch64_vectorize_vec_perm_const): Use new_vector to install
12755         the vector in d.perm.
12756         * config/arm/arm.c (expand_vec_perm_d::perm): Change
12757         from auto_vec_perm_indices to vec_perm_indices.
12758         (arm_expand_vec_perm_const_1): Use rotate_inputs on d.perm
12759         instead of changing individual elements.
12760         (arm_vectorize_vec_perm_const): Use new_vector to install
12761         the vector in d.perm.
12762         * config/powerpcspe/powerpcspe.c (rs6000_expand_extract_even):
12763         Update vec_perm_builder constructor.
12764         (rs6000_expand_interleave): Likewise.
12765         * config/rs6000/rs6000.c (rs6000_expand_extract_even): Likewise.
12766         (rs6000_expand_interleave): Likewise.
12767
12768 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
12769
12770         * optabs-query.c (can_vec_perm_var_p): Check whether lowering
12771         to qimode could truncate the indices.
12772         * optabs.c (expand_vec_perm_var): Likewise.
12773
12774 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
12775
12776         * Makefile.in (OBJS): Add vec-perm-indices.o.
12777         * vec-perm-indices.h: New file.
12778         * vec-perm-indices.c: Likewise.
12779         * target.h (vec_perm_indices): Replace with a forward class
12780         declaration.
12781         (auto_vec_perm_indices): Move to vec-perm-indices.h.
12782         * optabs.h: Include vec-perm-indices.h.
12783         (expand_vec_perm): Delete.
12784         (selector_fits_mode_p, expand_vec_perm_var): Declare.
12785         (expand_vec_perm_const): Declare.
12786         * target.def (vec_perm_const_ok): Replace with...
12787         (vec_perm_const): ...this new hook.
12788         * doc/tm.texi.in (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Replace with...
12789         (TARGET_VECTORIZE_VEC_PERM_CONST): ...this new hook.
12790         * doc/tm.texi: Regenerate.
12791         * optabs.def (vec_perm_const): Delete.
12792         * doc/md.texi (vec_perm_const): Likewise.
12793         (vec_perm): Refer to TARGET_VECTORIZE_VEC_PERM_CONST.
12794         * expr.c (expand_expr_real_2): Use expand_vec_perm_const rather than
12795         expand_vec_perm for constant permutation vectors.  Assert that
12796         the mode of variable permutation vectors is the integer equivalent
12797         of the mode that is being permuted.
12798         * optabs-query.h (selector_fits_mode_p): Declare.
12799         * optabs-query.c: Include vec-perm-indices.h.
12800         (selector_fits_mode_p): New function.
12801         (can_vec_perm_const_p): Check whether targetm.vectorize.vec_perm_const
12802         is defined, instead of checking whether the vec_perm_const_optab
12803         exists.  Use targetm.vectorize.vec_perm_const instead of
12804         targetm.vectorize.vec_perm_const_ok.  Check whether the indices
12805         fit in the vector mode before using a variable permute.
12806         * optabs.c (shift_amt_for_vec_perm_mask): Take a mode and a
12807         vec_perm_indices instead of an rtx.
12808         (expand_vec_perm): Replace with...
12809         (expand_vec_perm_const): ...this new function.  Take the selector
12810         as a vec_perm_indices rather than an rtx.  Also take the mode of
12811         the selector.  Update call to shift_amt_for_vec_perm_mask.
12812         Use targetm.vectorize.vec_perm_const instead of vec_perm_const_optab.
12813         Use vec_perm_indices::new_expanded_vector to expand the original
12814         selector into bytes.  Check whether the indices fit in the vector
12815         mode before using a variable permute.
12816         (expand_vec_perm_var): Make global.
12817         (expand_mult_highpart): Use expand_vec_perm_const.
12818         * fold-const.c: Includes vec-perm-indices.h.
12819         * tree-ssa-forwprop.c: Likewise.
12820         * tree-vect-data-refs.c: Likewise.
12821         * tree-vect-generic.c: Likewise.
12822         * tree-vect-loop.c: Likewise.
12823         * tree-vect-slp.c: Likewise.
12824         * tree-vect-stmts.c: Likewise.
12825         * config/aarch64/aarch64-protos.h (aarch64_expand_vec_perm_const):
12826         Delete.
12827         * config/aarch64/aarch64-simd.md (vec_perm_const<mode>): Delete.
12828         * config/aarch64/aarch64.c (aarch64_expand_vec_perm_const)
12829         (aarch64_vectorize_vec_perm_const_ok): Fuse into...
12830         (aarch64_vectorize_vec_perm_const): ...this new function.
12831         (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
12832         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
12833         * config/arm/arm-protos.h (arm_expand_vec_perm_const): Delete.
12834         * config/arm/vec-common.md (vec_perm_const<mode>): Delete.
12835         * config/arm/arm.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
12836         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
12837         (arm_expand_vec_perm_const, arm_vectorize_vec_perm_const_ok): Merge
12838         into...
12839         (arm_vectorize_vec_perm_const): ...this new function.  Explicitly
12840         check for NEON modes.
12841         * config/i386/i386-protos.h (ix86_expand_vec_perm_const): Delete.
12842         * config/i386/sse.md (VEC_PERM_CONST, vec_perm_const<mode>): Delete.
12843         * config/i386/i386.c (ix86_expand_vec_perm_const_1): Update comment.
12844         (ix86_expand_vec_perm_const, ix86_vectorize_vec_perm_const_ok): Merge
12845         into...
12846         (ix86_vectorize_vec_perm_const): ...this new function.  Incorporate
12847         the old VEC_PERM_CONST conditions.
12848         * config/ia64/ia64-protos.h (ia64_expand_vec_perm_const): Delete.
12849         * config/ia64/vect.md (vec_perm_const<mode>): Delete.
12850         * config/ia64/ia64.c (ia64_expand_vec_perm_const)
12851         (ia64_vectorize_vec_perm_const_ok): Merge into...
12852         (ia64_vectorize_vec_perm_const): ...this new function.
12853         * config/mips/loongson.md (vec_perm_const<mode>): Delete.
12854         * config/mips/mips-msa.md (vec_perm_const<mode>): Delete.
12855         * config/mips/mips-ps-3d.md (vec_perm_constv2sf): Delete.
12856         * config/mips/mips-protos.h (mips_expand_vec_perm_const): Delete.
12857         * config/mips/mips.c (mips_expand_vec_perm_const)
12858         (mips_vectorize_vec_perm_const_ok): Merge into...
12859         (mips_vectorize_vec_perm_const): ...this new function.
12860         * config/powerpcspe/altivec.md (vec_perm_constv16qi): Delete.
12861         * config/powerpcspe/paired.md (vec_perm_constv2sf): Delete.
12862         * config/powerpcspe/spe.md (vec_perm_constv2si): Delete.
12863         * config/powerpcspe/vsx.md (vec_perm_const<mode>): Delete.
12864         * config/powerpcspe/powerpcspe-protos.h (altivec_expand_vec_perm_const)
12865         (rs6000_expand_vec_perm_const): Delete.
12866         * config/powerpcspe/powerpcspe.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK):
12867         Delete.
12868         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
12869         (altivec_expand_vec_perm_const_le): Take each operand individually.
12870         Operate on constant selectors rather than rtxes.
12871         (altivec_expand_vec_perm_const): Likewise.  Update call to
12872         altivec_expand_vec_perm_const_le.
12873         (rs6000_expand_vec_perm_const): Delete.
12874         (rs6000_vectorize_vec_perm_const_ok): Delete.
12875         (rs6000_vectorize_vec_perm_const): New function.
12876         (rs6000_do_expand_vec_perm): Take a vec_perm_builder instead of
12877         an element count and rtx array.
12878         (rs6000_expand_extract_even): Update call accordingly.
12879         (rs6000_expand_interleave): Likewise.
12880         * config/rs6000/altivec.md (vec_perm_constv16qi): Delete.
12881         * config/rs6000/paired.md (vec_perm_constv2sf): Delete.
12882         * config/rs6000/vsx.md (vec_perm_const<mode>): Delete.
12883         * config/rs6000/rs6000-protos.h (altivec_expand_vec_perm_const)
12884         (rs6000_expand_vec_perm_const): Delete.
12885         * config/rs6000/rs6000.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
12886         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
12887         (altivec_expand_vec_perm_const_le): Take each operand individually.
12888         Operate on constant selectors rather than rtxes.
12889         (altivec_expand_vec_perm_const): Likewise.  Update call to
12890         altivec_expand_vec_perm_const_le.
12891         (rs6000_expand_vec_perm_const): Delete.
12892         (rs6000_vectorize_vec_perm_const_ok): Delete.
12893         (rs6000_vectorize_vec_perm_const): New function.  Remove stray
12894         reference to the SPE evmerge intructions.
12895         (rs6000_do_expand_vec_perm): Take a vec_perm_builder instead of
12896         an element count and rtx array.
12897         (rs6000_expand_extract_even): Update call accordingly.
12898         (rs6000_expand_interleave): Likewise.
12899         * config/sparc/sparc.md (vec_perm_constv8qi): Delete in favor of...
12900         * config/sparc/sparc.c (sparc_vectorize_vec_perm_const): ...this
12901         new function.
12902         (TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
12903
12904 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
12905
12906         * optabs.c (expand_vec_perm_1): Assert that SEL has an integer
12907         vector mode and that that mode matches the mode of the data
12908         being permuted.
12909         (expand_vec_perm): Split handling of non-CONST_VECTOR selectors
12910         out into expand_vec_perm_var.  Do all CONST_VECTOR handling here,
12911         directly using expand_vec_perm_1 when forcing selectors into
12912         registers.
12913         (expand_vec_perm_var): New function, split out from expand_vec_perm.
12914
12915 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
12916
12917         * optabs-query.h (can_vec_perm_p): Delete.
12918         (can_vec_perm_var_p, can_vec_perm_const_p): Declare.
12919         * optabs-query.c (can_vec_perm_p): Split into...
12920         (can_vec_perm_var_p, can_vec_perm_const_p): ...these two functions.
12921         (can_mult_highpart_p): Use can_vec_perm_const_p to test whether a
12922         particular selector is valid.
12923         * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
12924         * tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
12925         (vect_grouped_load_supported): Likewise.
12926         (vect_shift_permute_load_chain): Likewise.
12927         * tree-vect-slp.c (vect_build_slp_tree_1): Likewise.
12928         (vect_transform_slp_perm_load): Likewise.
12929         * tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
12930         (vectorizable_bswap): Likewise.
12931         (vect_gen_perm_mask_checked): Likewise.
12932         * fold-const.c (fold_ternary_loc): Likewise.  Don't take
12933         implementations of variable permutation vectors into account
12934         when deciding which selector to use.
12935         * tree-vect-loop.c (have_whole_vector_shift): Don't check whether
12936         vec_perm_const_optab is supported; instead use can_vec_perm_const_p
12937         with a false third argument.
12938         * tree-vect-generic.c (lower_vec_perm): Use can_vec_perm_const_p
12939         to test whether the constant selector is valid and can_vec_perm_var_p
12940         to test whether a variable selector is valid.
12941
12942 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
12943
12944         * optabs-query.h (can_vec_perm_p): Take a const vec_perm_indices *.
12945         * optabs-query.c (can_vec_perm_p): Likewise.
12946         * fold-const.c (fold_vec_perm): Take a const vec_perm_indices &
12947         instead of vec_perm_indices.
12948         * tree-vectorizer.h (vect_gen_perm_mask_any): Likewise,
12949         (vect_gen_perm_mask_checked): Likewise,
12950         * tree-vect-stmts.c (vect_gen_perm_mask_any): Likewise,
12951         (vect_gen_perm_mask_checked): Likewise,
12952
12953 2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>
12954
12955         * optabs-query.h (qimode_for_vec_perm): Declare.
12956         * optabs-query.c (can_vec_perm_p): Split out qimode search to...
12957         (qimode_for_vec_perm): ...this new function.
12958         * optabs.c (expand_vec_perm): Use qimode_for_vec_perm.
12959
12960 2018-01-02  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
12961
12962         * rtlanal.c (canonicalize_condition): Return 0 if final rtx
12963         does not have a conditional at the top.
12964
12965 2018-01-02  Richard Biener  <rguenther@suse.de>
12966
12967         * ipa-inline.c (big_speedup_p): Fix expression.
12968
12969 2018-01-02  Jan Hubicka  <hubicka@ucw.cz>
12970
12971         PR target/81616
12972         * config/i386/x86-tune-costs.h: Increase cost of integer load costs
12973         for generic 4->6.
12974
12975 2018-01-02  Jan Hubicka  <hubicka@ucw.cz>
12976
12977         PR target/81616
12978         Generic tuning.
12979         * x86-tune-costs.h (generic_cost): Reduce cost of FDIV 20->17,
12980         cost of sqrt 20->14, DIVSS 18->13, DIVSD 32->17, SQRtSS 30->14
12981         and SQRTsD 58->18, cond_not_taken_branch_cost. 2->1. Increase
12982         cond_taken_branch_cost 3->4.
12983
12984 2018-01-01  Jakub Jelinek  <jakub@redhat.com>
12985
12986         PR tree-optimization/83581
12987         * tree-loop-distribution.c (pass_loop_distribution::execute): Return
12988         TODO_cleanup_cfg if any changes have been made.
12989
12990         PR middle-end/83608
12991         * expr.c (store_expr_with_bounds): Use simplify_gen_subreg instead of
12992         convert_modes if target mode has the right side, but different mode
12993         class.
12994
12995         PR middle-end/83609
12996         * expr.c (expand_assignment): Fix up a typo in simplify_gen_subreg
12997         last argument when extracting from CONCAT.  If either from_real or
12998         from_imag is NULL, use expansion through memory.  If result is not
12999         a CONCAT and simplify_gen_subreg fails, try to simplify_gen_subreg
13000         the parts directly to inner mode, if even that fails, use expansion
13001         through memory.
13002
13003         PR middle-end/83623
13004         * expmed.c (expand_shift_1): For 2-byte rotates by BITS_PER_UNIT,
13005         check for bswap in mode rather than HImode and use that in expand_unop
13006         too.
13007 \f
13008 Copyright (C) 2018 Free Software Foundation, Inc.
13009
13010 Copying and distribution of this file, with or without modification,
13011 are permitted in any medium without royalty provided the copyright
13012 notice and this notice are preserved.