gcc/ChangeLog

   1 2016-01-18  Joseph Myers  <joseph@codesourcery.com>
   2
   3         * config/mips/mips.h (ISA_HAS_PAIRED_SINGLE): Require
   4         !TARGET_OCTEON.
   5
   6 2016-01-18  Richard Biener  <rguenther@suse.de>
   7
   8         PR middle-end/69308
   9         * gimple.c (gimple_could_trap_p_1): Handle GIMPLE_COND.
  10
  11 2016-01-18  Tom de Vries  <tom@codesourcery.com>
  12
  13         * passes.def: Add pass_parallelize_loops to pass_oacc_kernels.
  14
  15 2016-01-18  Tom de Vries  <tom@codesourcery.com>
  16
  17         * omp-low.c (set_oacc_fn_attrib): Make extern.
  18         * omp-low.h (set_oacc_fn_attrib): Declare.
  19         * tree-parloops.c (struct reduction_info): Add reduc_addr field.
  20         (create_call_for_reduction_1): Handle case that reduc_addr is non-NULL.
  21         (create_parallel_loop, gen_parallel_loop, try_create_reduction_list):
  22         Add and handle function parameter oacc_kernels_p.
  23         (find_reduc_addr, get_omp_data_i_param): New function.
  24         (ref_conflicts_with_region, oacc_entry_exit_ok_1)
  25         (oacc_entry_exit_single_gang, oacc_entry_exit_ok): New function.
  26         (parallelize_loops): Add and handle function parameter oacc_kernels_p.
  27         Calculate dominance info.  Skip loops that are not in a kernels region
  28         in oacc_kernels_p mode.  Skip inner loops of parallelized loops.
  29         (pass_parallelize_loops::execute): Call parallelize_loops with
  30         oacc_kernels_p argument.
  31         (pass_parallelize_loops::clone, pass_parallelize_loops::set_pass_param):
  32         New member function.
  33         (pass_parallelize_loops::bool oacc_kernels_p): New member var.
  34         * passes.def: Add argument to pass_parallelize_loops instantation.
  35
  36 2016-01-18  Tom de Vries  <tom@codesourcery.com>
  37
  38         * tree-parloops.c (pass_parallelize_loops::execute): Allow
  39         pass_parallelize_loops to be run outside the loop pipeline.
  40
  41 2016-01-18  Alan Lawrence  <alan.lawrence@arm.com>
  42
  43         * tree-scalar-evolution.c (follow_copies_to_constant): New.
  44         (analyze_initial_condition, analyze_scalar_evolution_1): Call previous.
  45
  46 2016-01-18  Alan Lawrence  <alan.lawrence@arm.com>
  47
  48         PR target/63679
  49         * tree-ssa-scopedtables.c (avail_expr_hash): Hash MEM_REF and ARRAY_REF
  50         using get_ref_base_and_extent.
  51         (equal_mem_array_ref_p): New.
  52         (hashable_expr_equal_p): Add call to previous.
  53
  54 2016-01-18  Alan Lawrence  <alan.lawrence@arm.com>
  55
  56         PR target/63679
  57         * tree-sra.c (disqualified_constants, constant_decl_p): New.
  58         (sra_initialize): Allocate disqualified_constants.
  59         (sra_deinitialize): Free disqualified_constants.
  60         (disqualify_candidate): Update disqualified_constants when appropriate.
  61         (create_access): Scan for constant-pool entries as we go along.
  62         (scalarizable_type_p): Add check against type_contains_placeholder_p.
  63         (maybe_add_sra_candidate): Allow constant-pool entries.
  64         (load_assign_lhs_subreplacements): Bind debug for constant pool vars.
  65         (initialize_constant_pool_replacements): New.
  66         (sra_modify_assign): Avoid mangling assignments created by previous,
  67         and don't generate writes into constant pool.
  68         (sra_modify_function_body): Call initialize_constant_pool_replacements.
  69
  70 2016-01-18  Ilya Enkovich  <enkovich.gnu@gmail.com>
  71
  72         * config/i386/i386.c (scalar_to_vector_candidate_p): Support
  73         andnot instruction.
  74         (scalar_chain::convert_op): Likewise.
  75         * config/i386/i386.md (*andndi3_doubleword): New.
  76
  77 2016-01-18  Richard Biener  <rguenther@suse.de>
  78
  79         PR tree-optimization/69170
  80         * tree-vect-slp.c (vect_build_slp_tree): Verify we are not
  81         building a vector from scalar results of a pattern stmt.
  82
  83 2016-01-18  Jakub Jelinek  <jakub@redhat.com>
  84
  85         * haifa-sched.c (autopref_multipass_init): Work around
  86         -Wmaybe-uninitialized warning.
  87
  88 2016-01-18  Thomas Preud'homme  <thomas.preudhomme@arm.com>
  89
  90         * config/arm/arm.c (thumb1_reorg): Check that the comparison is
  91         against the constant 0.
  92
  93 2016-01-17  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
  94
  95         PR tree-optimization/68799
  96         * gimple-ssa-strength-reduction.c (create_phi_basis): Directly
  97         look up phi candidates in the statement-candidate map.
  98         (phi_add_costs): Likewise.
  99         (record_phi_increments): Likewise.
 100         (phi_incr_cost): Likewise.
 101         (ncd_with_phi): Likewise.
 102         (all_phi_incrs_profitable): Likewise.
 103
 104 2016-01-17  Jakub Jelinek  <jakub@redhat.com>
 105
 106         * omp-low.c (mark_loops_in_oacc_kernels_region): Work around
 107         -Wmaybe-uninitialized warning.
 108
 109 2016-01-16  Sandra Loosemore  <sandra@codesourcery.com>
 110
 111         * doc/invoke.texi (Invoking GCC): Add new section to menu.
 112         (Option Summary): Update to reflect new section and moved options.
 113         (C++ Dialect Options): Move -fvtable-verify and related options.
 114         (Debugging Options): Move Sanitizer, Pointer Bounds Checker,
 115         and profiling-related options.
 116         (Optimization Options): Move profile generation options and
 117         -fstack-protector and related options.
 118         (Instrumentation Options): New section incorporating moved options.
 119         (Code Generation Options): Move -finstrument-functions and
 120         related options, -fstack-check, -fstack-limit*, and -fbounds-check.
 121
 122 2016-01-16  Tom de Vries  <tom@codesourcery.com>
 123
 124         * passes.def: Move pass_expand_omp_ssa out of pass_parallelize_loops.
 125
 126 2016-01-16  Tom de Vries  <tom@codesourcery.com>
 127
 128         * omp-low.c (expand_omp_atomic_fetch_op):  Release defs of update stmt.
 129
 130 2016-01-16  Richard Sandiford  <richard.sandiford@arm.com>
 131
 132         * hash-table.h (hash_table::empty): Turn into an inline wrapper
 133         that checks whether the table is already empty.  Rename the
 134         original implementation to...
 135         (hash_table::empty_slot): ...this new private function.
 136
 137 2016-01-15  David Malcolm  <dmalcolm@redhat.com>
 138
 139         PR diagnostic/68899
 140         * diagnostic-show-locus.c (layout::print_source_line): Move x
 141         offset of line until after call to
 142         get_line_width_without_trailing_whitespace.
 143
 144 2016-01-15  Jeff Law  <law@redhat.com>
 145
 146         PR tree-optimization/69270
 147         * tree-ssanames.c (ssa_name_has_boolean_range): Moved here from
 148         tree-ssa-dom.c.  Improve test for [0..1] ranve from VRP.
 149         * tree-ssa-dom.c (ssa_name_has_boolean_range): Remove.
 150         * tree-ssanames.h (ssa_name_has_boolean_range): Prototype.
 151         * tree-ssa-uncprop.c (associate_equivalences_with_edges): Use
 152         ssa_name_has_boolean_range and constant_boolean_node.
 153
 154 2016-01-15  Vladimir Makarov  <vmakarov@redhat.com>
 155
 156         PR rtl-optimization/69030
 157         * lra-spills.c (remove_pseudos): Check nrefs and make the function
 158         returning bool.
 159         (spill_pseudos): Delete debug insn for dead pseudo.
 160         (lra_spill): Initiate spill_hard_reg and slots memory separately.
 161
 162 2016-01-15  Jiong Wang  <jiong.wang@arm.com>
 163
 164         * config/aarch64/aarch64-builtins.c (aarch64_types_unopus_qualifiers):
 165         New.
 166         (TYPES_UNOPUS): Likewise.
 167         * config/aarch64/aarch64-simd-builtins.def (lbtruncuv2sf): Correct
 168         builtin type, from UNOP to UNOPUS.
 169         (lbtruncuv4sf): Likewise.
 170         (lbtruncuv2df): Likewise.
 171         (lrounduv2sf): Likewise.
 172         (lrounduv4sf): Likewise.
 173         (lrounduv2df): Likewise.
 174         (lroundusf): Likewise.
 175         (lroundusf): Likewise.
 176         (lceiluv2sf): Likewise.
 177         (lceiluv4sf): Likewise.
 178         (lceiluv2df): Likewise.
 179         (lceilusf): Likewise.
 180         (lceiludf): Likewise.
 181         (lflooruv2sf): Likewise.
 182         (lflooruv4sf): Likewise.
 183         (lflooruv2df): Likewise.
 184         (lfloorusf): Likewise.
 185         (lfloorudf): Likewise.
 186         (lfrintnuv2sf): Likewise.
 187         (lfrintnuv4sf): Likewise.
 188         (lfrintnuv2df): Likewise.
 189         (lfrintnusf): Likewise.
 190         (lfrintnudf): Likewise.
 191         * config/aarch64/arm_neon.h (vcvt_u32_f32): Remove unncessary type
 192         conversion.
 193         (vcvtq_u32_f32): Likewise.
 194         (vcvtq_u64_f64): Likewise.
 195         (vcvta_u32_f32): Likewise.
 196         (vcvtaq_u32_f32): Likewise.
 197         (vcvtaq_u64_f64): Likewise.
 198         (vcvtm_u32_f32): Likewise.
 199         (vcvtmq_u32_f32): Likewise.
 200         (vcvtmq_u64_f64): Likewise.
 201         (vcvtn_u32_f32): Likwise.
 202         (vcvtnq_u32_f32): Likewise.
 203         (vcvtnq_u64_f64): Likewise.
 204         (vcvtp_u32_f32): Likewise.
 205         (vcvtpq_u32_f32): Likewise.
 206         (vcvtpq_u64_f64): Likewise.
 207         (vcvtmd_u64_f64): Likewise.
 208         (vcvtms_u32_f32): Likewise.
 209         (vcvtad_u64_f64): Likewise.
 210         (vcvtas_u32_f32): Likewise.
 211         (vcvtnd_u64_f64): Likewise.
 212         (vcvtns_u32_f32): Likewise.
 213         (vcvtpd_u64_f64): Likewise.
 214         (vcvtps_u32_f32): Likewise.
 215
 216 2016-01-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 217
 218         * config/aarch64/aarch64.c (aarch64_if_then_else_costs): Handle
 219         CSEL of zero_extended registers.
 220
 221 2016-01-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 222
 223         * config/aarch64/aarch64.c (aarch64_rtx_costs, COMPARE case):
 224         Handle COMPARE of ZERO_EXTRACT against zero form of TST-immediate.
 225
 226 2016-01-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 227
 228         * config/aarch64/aarch64.c (aarch64_process_one_target_attr): Return
 229         false when argument string is not found in the attributes table
 230         at all.
 231
 232 2016-01-15  David Edelsohn  <dje.gcc@gmail.com>
 233
 234         PR target/68609
 235         * config/rs6000/rs6000.c (rs6000_emit_msub): Delete.
 236         (rs6000_emit_swsqrt): Convert to Goldschmidt's Algorithm
 237         * config/rs6000/rs6000.md (sqrt<mode>2): Limit swsqrt to high
 238         precision estimate.
 239
 240 2016-01-15  Richard Biener  <rguenther@suse.de>
 241
 242         PR tree-optimization/66856
 243         * tree-vect-loop.c (vect_transform_loop): Free SLP instances here.
 244         * tree-vect-slp.c (vect_free_slp_tree): Decrement stmt reference count.
 245         (vect_create_new_slp_node): Increment stmt reference count.
 246         (vect_get_and_check_slp_defs): Make sure stmts are nor already in
 247         an SLP tree before swapping operands.
 248         (vect_build_slp_tree): Likewise.
 249         (destroy_bb_vec_info): Free stmt info after SLP instances.
 250         * tree-vect-stmts.c (new_stmt_vec_info): Initialize reference count.
 251         * tree-vectorizer.h (struct _stmt_vec_info): Add num_slp_uses field.
 252         (STMT_VINFO_NUM_SLP_USES): New macro.
 253
 254 2016-01-15  Richard Biener  <rguenther@suse.de>
 255
 256         PR debug/69137
 257         * dwarf2out.c (add_linkage_name_raw): New function split out from ...
 258         (add_linkage_name): ... here.
 259         (gen_typedef_die): Use add_linkage_name_raw instead of
 260         add_linkage_attr to delay DECL_ASSEMBLER_NAME computation
 261         if necessary.
 262
 263 2016-01-15  Cesar Philippidis  <cesar@codesourcery.com>
 264
 265         * gimplify.c (oacc_default_clause): Decode reference and pointer
 266         types for both kernels and parallel regions.
 267
 268 2016-01-15  Richard Sandiford  <richard.sandiford@arm.com>
 269
 270         PR middle-end/69246
 271         * calls.c (emit_call_1): Force n_popped to zero for sibcalls.
 272
 273 2016-01-15  Ilya Enkovich  <enkovich.gnu@gmail.com>
 274
 275         * config/i386/i386.c (scalar_chain::compute_convert_gain): Fix typo.
 276         (convert_scalars_to_vector): Likewise.
 277
 278 2016-01-15  Jonathan Wakely  <jwakely@redhat.com>
 279
 280         * doc/extend.texi (Type Traits): Fix grammar.
 281
 282 2016-01-15  Martin Jambor  <mjambor@suse.cz>
 283
 284         * tree-inline.c (remap_decl): Use existing dclarations if
 285         remapping a type and prevent_decl_creation_for_types.
 286         (replace_locals_stmt): Do an initial remapping of non-VLA typed
 287         decls first.  Do real remapping with
 288         prevent_decl_creation_for_types set.
 289         * tree-inline.h (copy_body_data): New field
 290         prevent_decl_creation_for_types, moved remap_var_for_cilk to avoid
 291         padding.
 292
 293 2016-01-15  Dominik Vogt  <vogt@linux.vnet.ibm.com>
 294
 295         * config/s390/s390.opt (mmvcle): More verbose help text.
 296
 297 2016-01-15  Dominik Vogt  <vogt@linux.vnet.ibm.com>
 298
 299         * config/s390/s390.opt: Add period to -mzvector option text.
 300
 301 2016-01-15  Richard Biener  <rguenther@suse.de>
 302
 303         PR tree-optimization/68961
 304         * tree-vect-slp.c (vect_analyze_slp_cost_1): Consider cost
 305         of invariants in stores again.
 306
 307 2016-01-15  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 308
 309         * config/arm/t-rtems: Add cortex-m7/fpv5-d16 multilib.
 310
 311 2016-01-15  Ilya Enkovich  <enkovich.gnu@gmail.com>
 312
 313         * config/i386/i386.c (ix86_expand_branch): Don't split
 314         DI mode xor instruction to SI mode.
 315
 316 2016-01-15  Jan Hubicka  <hubicka@ucw.cz>
 317
 318         PR ipa/68148
 319         * ipa-icf.c (sem_function::merge): Virtual functions may become
 320         reachable even if they address is not taken and there are no
 321         idrect calls.
 322
 323 2016-01-15  Jan Hubicka  <hubicka@ucw.cz>
 324
 325         * lto-streamer-out.c (subtract_estimated_size): New function.
 326         (get_symbol_initial_value): Use it.
 327
 328 2016-01-15  Christian Bruel  <christian.bruel@st.com>
 329
 330         PR target/65837
 331         * config/arm/arm-builtins.c (ARM_BUILTIN_CRYPTO_BASE): New enum tag.
 332         (arm_init_neon_builtins_internal): Rename arm_init_neon_builtins,
 333         (arm_init_crypto_builtins_internal): Rename arm_init_crypto_builtins.
 334         use add_builtin_function_ext_scope instead of add_builtin_function.
 335         (neon_set_p, neon_crypto_set_p): Remove.
 336         (arm_init_builtins): Always call arm_init_neon_builtins and
 337         arm_init_crypto_builtins.
 338         (arm_expand_builtin): Check that builtins are allowed for the arch.
 339         * config/arm/arm-protos.h (arm_init_neon_builtins): Remove prototype.
 340         * config/arm/arm.c (arm_valid_target_attribute_tree): Remove
 341         arm_init_neon_builtins call.
 342
 343 2016-01-15  Richard Biener  <rguenther@suse.de>
 344
 345         PR tree-optimization/69117
 346         * tree-ssa-sccvn.h (struct vn_ssa_aux): Add info member.
 347         * tree-ssa-sccvn.c (set_ssa_val_to): Save and adjust SSA name info
 348         of the leader conservatively.
 349         (free_scc_vn): Restore original SSA name infos.
 350
 351 2016-01-14  Jeff Law  <law@redhat.com>
 352
 353         PR tree-optimization/69270
 354         * tree-ssa-dom.c (ssa_name_has_boolean_range): If the type has a
 355         single bit of precision, verify it's also unsigned.
 356         (record_edge_info): Use constant_boolean_node rather than fold_convert
 357         to convert boolean_true/boolean_false to the right type.
 358
 359 2016-01-14  Richard Henderson  <rth@redhat.com>
 360
 361         PR rtl-opt/69014
 362         * loop-doloop.c (record_reg_sets): New.
 363         (doloop_optimize): Reject the transform if the sequence
 364         clobbers registers live at the end of the loop block.
 365         (doloop_optimize_loops): Enable df_live if needed.
 366
 367 2016-01-14  Michael Meissner  <meissner@linux.vnet.ibm.com>
 368
 369         * config/rs6000/rs6000-builtin.def: Revert 2016-01-13 change.
 370         * gcc/config/rs6000/rs6000.c: Likewise.
 371         * gcc/config/rs6000/rs6000.h: Likewise.
 372         * gcc/config/rs6000/rs6000.md: Likewise.
 373         * gcc/doc/extend.texi: Likewsie.
 374
 375 2016-01-14  Jeff Law  <law@redhat.com>
 376
 377         * tree-ssa-dom.c (ssa_name_has_boolean_range): Fix comment
 378         typo.
 379
 380 2016-01-14  Richard Henderson  <rth@redhat.com>
 381
 382         PR c/69272
 383         PR tree-opt/68964
 384         * trans-mem.c (tm_log_emit_stmt): Fix unit size to bit size.
 385         * tree.c (build_tm_vector_builtins): Use builtin_decl_explicit_p
 386         instead of builtin_decl_declared_p to test for declaration.
 387
 388 2016-01-14  Nicklas Bo Jensen  <nbjensen@gmail.com>
 389
 390         * doc/loop.texi (Loop Analysis and Representation): Document
 391         loop_depth function.
 392
 393 2016-01-14  Tom de Vries  <tom@codesourcery.com>
 394
 395         PR tree-optimization/68773
 396         * omp-low.c (expand_omp_target): Don't set force_output.
 397         * varpool.c (varpool_node::get_create): Same.
 398         * lto-cgraph.c (input_offload_tables): Mark entries in offload_vars and
 399         offload_funcs with force_output.
 400
 401 2016-01-14  Jakub Jelinek  <jakub@redhat.com>
 402
 403         PR debug/69244
 404         * lra-eliminations.c (move_plus_up): Don't change anything if either
 405         the outer or inner subreg mode is not MODE_INT.
 406         * dwarf2out.c (mem_loc_descriptor): For SUBREG, if outer mode is
 407         integral <= DWARF2_ADDR_SIZE, convert to untyped afterwards.
 408
 409 2016-01-14  Alan Lawrence  <alan.lawrence@arm.com>
 410
 411         * doc/md.texi (reduc_smin_@var{m}, reduc_smax_@var{m},
 412         reduc_umin_@var{m}, reduc_umax_@var{m}, reduc_splus_@var{m},
 413         reduc_uplus_@var{m}): Remove.
 414         * expr.c (expand_expr_real_2): Remove expansion path for
 415         reduc_[us](min|max|plus) optabs.
 416         * optabs-tree.c (scalar_reduc_to_vector): Remove.
 417         * optabs-tree.h (scalar_reduc_to_vector): Remove.
 418         * optabs.def (reduc_smax_optab, reduc_smin_optab, reduc_splus_optab,
 419         reduc_umax_optab, reduc_umin_optab, reduc_uplus_optab): Remove.
 420         * tree-vect-loop.c (vectorizable_reduction): Remove test for
 421         reduc_[us](min|max|plus) optabs.
 422
 423 2016-01-14  Alan Lawrence  <alan.lawrence@arm.com>
 424
 425         * config/mips/mips-ps-3d.md (reduc_splus_v2sf): Remove.
 426         (reduc_plus_scal_v2sf): New.
 427         (reduc_smax_v2sf): Rename to...
 428         (reduc_smax_scal_v2sf): ...here, make result SFmode, add vec_extract.
 429         (reduc_smin_v2sf): Rename to...
 430         (reduc_smin_scal_v2sf): ...here, make result SFmode, add vec_extract.
 431
 432 2016-01-14  Jan Hubicka  <hubicka@ucw.cz>
 433
 434         * alias.c (compare_base_symbol_refs): New function.
 435         (rtx_equal_for_memref_p, base_alias_check, memrefs_conflict_p): Use
 436         it.
 437
 438 2016-01-14  Jakub Jelinek  <jakub@redhat.com>
 439
 440         PR middle-end/68146
 441         PR tree-optimization/69155
 442         * tree-complex.c: Include cfganal.h.
 443         (phis_to_revisit): New variable.
 444         (extract_component): Add phiarg_p argument.  Assert that returned
 445         SSA_NAME has non-NULL SSA_NAME_DEF_STMT unless phiarg_p is true.
 446         (update_phi_components): Partly rewrite to use loop over real/imag
 447         components instead of code duplication.  If extract_component returns
 448         SSA_NAME with NULL SSA_NAME_DEF_STMT, store SSA_NAME_VAR or
 449         create_tmp_reg into the PHI node instead, and mention the phi triplet
 450         in phis_to_revisit.
 451         (tree_lower_complex): Walk bbs in rpo order.  Adjust phis recorded
 452         in phis_to_revisit at the end.
 453
 454 2016-01-14  Richard Biener  <rguenther@suse.de>
 455
 456         PR tree-optimization/68060
 457         * tree-vect-loop.c (vect_is_simple_reduction): Check the
 458         outer loop reduction is only used in the inner loop before
 459         detecting a double reduction.
 460
 461 2016-01-14  Jakub Jelinek  <jakub@redhat.com>
 462
 463         PR target/68269
 464         * combine.c (expand_field_assignment): Punt if compute_mode is
 465         unsupported scalar mode.
 466
 467 2016-01-14  Richard Biener  <rguenther@suse.de>
 468
 469         PR tree-optimization/66856
 470         * tree-vect-slp.c (vect_build_slp_tree): Refactor to build
 471         SLP node only if it built successfully.
 472         (vect_analyze_slp_instance): Adjust.
 473
 474 2016-01-14  Jeff Law  <law@redhat.com>
 475
 476         PR tree-optimization/69270
 477         * tree-ssa-dom.c (ssa_name_has_boolean_range): New function.
 478         (record_edge_info): Use it.  Convert boolean_{true,false}_node
 479         to the type of op0.
 480
 481 2016-01-13  Jan Hubicka  <hubicka@ucw.cz>
 482
 483         PR ipa/66487
 484         * ipa-polymorphic-call.c (inlined_polymorphic_ctor_dtor_block_p):
 485         use block_ultimate_origin
 486         (noncall-stmt_may_be_vtbl_ptr_store): Likewise.
 487
 488 2016-01-13  Sandra Loosemore <sandra@codesourcery.com>
 489
 490         * doc/invoke.texi (Submodel Options): Rename section to
 491         "Machine-Dependent Options" to better reflect its content.
 492         Rewrite introductory text to remove archaic CPU names.
 493         Update references.
 494
 495 2016-01-13  Sandra Loosemore <sandra@codesourcery.com>
 496
 497         * doc/invoke.texi (Code Gen Options): Move section up in file,
 498         before target-specific options.  Update menu and option summary
 499         to reflect the new section ordering.
 500
 501 2016-01-13  Jonathan Wakely  <jwakely@redhat.com>
 502
 503         * doc/invoke.texi (C Dialect Options): Adjust -std default for C++.
 504         (C++ Dialect Options): Add cross-reference to -std option.
 505         * doc/standards.texi (C++ Language): Document C++14 support.
 506
 507 2016-01-13  Michael Meissner  <meissner@linux.vnet.ibm.com>
 508
 509         * config/rs6000/rs6000-builtin.def (BU_FLOAT128_2): Add support
 510         for pack/unpack functions for __ibm128.
 511         (PACK_IF): Likewise.
 512         (UNPACK_IF): Likewise.
 513
 514         * config/rs6000/rs6000.c (rs6000_builtin_mask_calculate): Add
 515         support for __ibm128 pack/unpack functions.
 516         (rs6000_invalid_builtin): Likewise.
 517         (rs6000_init_builtins): Likewise.
 518         (rs6000_opt_masks): Likewise.
 519
 520         * config/rs6000/rs6000.h (MASK_FLOAT128): Add short name.
 521         (RS6000_BTM_FLOAT128): Add support for __ibm128 pack/unpack
 522         functions
 523         (RS6000_BTM_COMMON): Likewise.
 524
 525         * config/rs6000/rs6000.md (f128_vsx): New mode attribute.
 526         (unpack<mode>): Use FMOVE128_FPR iterator instead of FMOVE128, to
 527         disallow __builtin_{pack,unpack}_longdouble if long double is IEEE
 528         128-bit floating point.  Add support for the double values to be
 529         in Altivec registers for TF/IF packing and unpacking, but restrict
 530         TD packing sub-fields to be FPR registers.  Don't allow overlapped
 531         register support for packing.  Allow pack inputs to be memory
 532         locations.  Don't build generator functions for unpack<mode>_dm
 533         and unpack<mode>_nodm.
 534         (unpack<mode>_dm): Likewise.
 535         (unpack<mode>_nodm): Likewise.
 536         (pack<mode>): Likewise.
 537
 538         * config/rs6000/rs6000-builtin.def (__builtin_pack_ibm128): Add
 539         built-in functions to pack/unpack explicit __ibm128 values.
 540         (__builtin_unpack_ibm128): Likewise.
 541
 542         * doc/extend.texi (PowerPC Built-in Functions): Document
 543         __builtin_pack_ibm128 and __builtin_unpack_ibm128.
 544
 545 2016-01-13  Bernd Schmidt  <bschmidt@redhat.com>
 546
 547         PR c/66208
 548         * c-common.c (check_function_nonnull): Remove unnecessary declaration.
 549         Add new arg loc and pass it down as context.
 550         (check_nonnull_arg): Don't mark ctx arg as unused. Use it as a pointer
 551         to the location to use for the warning.
 552         (check_function_arguments): New arg loc.  All callers changed.  Pass
 553         it to check_function_nonnull.
 554         * c-common.h (check_function_arguments): Adjust declaration.
 555
 556 2016-01-13  Jakub Jelinek  <jakub@redhat.com>
 557
 558         PR tree-optimization/69156
 559         * gimple.c (validate_type): Removed.
 560         (gimple_builtin_call_types_compatible_p): Use
 561         useless_type_conversion_p instead of validate_type.
 562         * value-prof.c (gimple_stringop_fixed_value): Fold
 563         icall_size to correct type.
 564
 565 2016-01-13  Jonathan Wakely  <jwakely@redhat.com>
 566
 567         * doc/extend.texi (__atomic Builtins): Clarify compare_exchange
 568         effects.
 569
 570 2016-01-13  Richard Henderson  <rth@redhat.com>
 571
 572         PR tree-opt/68964
 573         * target.def (builtin_tm_load, builtin_tm_store): Remove.
 574         * config/i386/i386.c (ix86_builtin_tm_load): Remove.
 575         (ix86_builtin_tm_store): Remove.
 576         (TARGET_VECTORIZE_BUILTIN_TM_LOAD): Remove.
 577         (TARGET_VECTORIZE_BUILTIN_TM_STORE): Remove.
 578         * doc/tm.texi.in (TARGET_VECTORIZE_BUILTIN_TM_LOAD): Remove.
 579         (TARGET_VECTORIZE_BUILTIN_TM_STORE): Remove.
 580         * doc/tm.texi: Rebuild.
 581
 582         * gtm-builtins.def (BUILT_IN_TM_MEMCPY_RNWT): New.
 583         (BUILT_IN_TM_MEMCPY_RTWN): New.
 584         * trans-mem.c (tm_log_emit_stmt): Rearrange code for better
 585         fallback from vector to integer helpers.
 586         (build_tm_load): Handle vector types directly, instead of
 587         via target hook.
 588         (build_tm_store): Likewise.
 589         (expand_assign_tm): Prepare for register types not handled by
 590         the above.  Copy them to memory and use memcpy.
 591         * tree.c (tm_define_builtin): New.
 592         (find_tm_vector_type): New.
 593         (build_tm_vector_builtins): New.
 594         (build_common_builtin_nodes): Call it.
 595
 596 2016-01-13  Uros Bizjak  <ubizjak@gmail.com>
 597
 598         * config/i386/i386.h (TARGET_FLT_EVAL_METHOD): Return -1 for
 599         TARGET_SSE_MATH without TARGET_SSE2.  Rewrite.
 600
 601 2016-01-13  Tom de Vries  <tom@codesourcery.com>
 602
 603         PR tree-optimization/69169
 604         * tree-ssa-structalias.c (create_variable_info_for_1): Add and handle
 605         handled_struct_type param.
 606         (create_variable_info_for, intra_create_variable_infos): Call
 607         create_variable_info_for_1 with extra arg.
 608
 609 2016-01-13  Yvan Roux  <yvan.roux@linaro.org>
 610
 611         * config/arm/arm-arches.def: Remove spurious whitespace in "armv8.1-a"
 612         and "armv8.1-a+crc" entries.
 613
 614 2016-01-13  Alexander Fomin  <alexander.fomin@intel.com>
 615
 616         PR target/69228
 617         * config/i386/sse.md (define_expand "avx512pf_gatherpf<mode>sf"):
 618         Change first operand predicate from register_or_constm1_operand
 619         to register_operand.
 620         (define_expand "avx512pf_gatherpf<mode>df"): Likewise.
 621         (define_expand "avx512pf_scatterpf<mode>sf"): Likewise.
 622         (define_expand "avx512pf_scatterpf<mode>df"): Likewise.
 623         (define_insn "*avx512pf_gatherpf<mode>sf"): Remove.
 624         (define_insn "*avx512pf_gatherpf<mode>df"): Likewise.
 625         (define_insn "*avx512pf_scatterpf<mode>sf"): Likewise.
 626         (define_insn "*avx512pf_scatterpf<mode>df"): Likewise.
 627         * config/i386/i386.c (ix86_expand_builtin): Remove first operand
 628         comparison with constm1_rtx from vec_prefetch_gen part.
 629
 630 2016-01-13  Richard Biener  <rguenther@suse.de>
 631
 632         PR tree-optimization/69013
 633         * tree-ssa-uninit.c (prune_uninit_phi_opnds_in_unrealizable_paths):
 634         Exchange assert for a test.
 635
 636 2016-01-13  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
 637
 638         PR target/69247
 639         * config/s390/s390.md (bswaphi splitter): Use simplify_gen_subreg.
 640
 641 2016-01-13  Richard Biener  <rguenther@suse.de>
 642
 643         PR tree-optimization/69242
 644         * tree-ssa-sccvn.c (visit_reference_op_load): Replace bogus
 645         assert with a check.
 646
 647 2016-01-13  Richard Biener  <rguenther@suse.de>
 648
 649         PR tree-optimization/69186
 650         * tree-vect-data-refs.c (vect_enhance_data_refs_alignment):
 651         Properly guard vect_update_misalignment_for_peel call.
 652
 653 2016-01-12  Jeff Law  <law@redhat.com>
 654
 655         PR tree-optimization/pr67755
 656         * tree-ssa-threadupdate.c (struct ssa_local_info_t): Add new field
 657         "need_profile_correction".
 658         (thread_block_1): Initialize new field to false by default.  If we
 659         have multiple thread paths through a common joiner to different
 660         final targets, then set new field to true.
 661         (compute_path_counts): Only do count adjustment when it's really
 662         needed.
 663
 664 2016-01-12  Sandra Loosemore  <sandra@codesourcery.com>
 665
 666         * doc/invoke.texi (Spec Files): Move section down in file, past
 667         all command-line option descriptions.
 668
 669 2016-01-12  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
 670
 671         PR middle-end/54809
 672         * doc/gty.texi: Remove documentation of mark_hook.
 673         * gengtype.c (struct write_types_data): Remove code to support
 674         mark_hook attribute.
 675         (walk_type): Likewise.
 676         (write_func_for_structure): Likewise.
 677
 678 2016-01-12  Sandra Loosemore  <sandra@codesourcery.com>
 679
 680         * doc/invoke.texi (Option Summary) Move -no-canonical-prefixes to
 681         Directory Options, and -specs= to Overall Options.
 682         (Overall Options): Adjust similarly.  Reorder to group related
 683         options together.  Make -specs= cross-reference the spec file details.
 684         (Directory Options): Adjust similarly.
 685
 686 2016-01-12  Jeff Law  <law@redhat.com>
 687
 688         * tree-ssa-threadupdate.c: Various whitespace and typo fixes.
 689
 690 2016-01-12  Olivier Hainque  <hainque@adacore.com>
 691
 692         * gcc.c (spec_undefvar_allowed): New global.
 693         (process_command): Set to true when running for --version or --help,
 694         alone or together.
 695         (getenv_spec_function): When the variable is not defined, use the
 696         variable name as the variable value if we're allowed not to issue
 697         a fatal error.
 698
 699 2016-01-12  Bin Cheng  <bin.cheng@arm.com>
 700
 701         PR tree-optimization/68911
 702         * tree-vrp.c (adjust_range_with_scev): Check overflow in range
 703         information computed for expression "init + nit * step".
 704
 705 2016-01-12  Sandra Loosemore  <sandra@codesourcery.com>
 706
 707         * doc/invoke.texi (Invoking GCC): Copy-edit.  Incorporate information
 708         about name of GCC executable.  Remove deleted node from menu.
 709         (Directory Options) <-B>: Remove cross-reference to deleted node.
 710         (Target Options): Delete section.
 711
 712 2016-01-12  Christian Bruel  <christian.bruel@st.com>
 713
 714         PR target/69180
 715         * config/arm/arm-c.c (arm_pragma_target_parse): Set NODE_CONDITIONAL
 716         for __ARM_NEON_FP, __ARM_FP, _ARM_FEATURE_LDREX.
 717
 718 2016-01-12  Jakub Jelinek  <jakub@redhat.com>
 719
 720         PR target/69198
 721         * config/i386/i386.c (ix86_expand_special_args_builtin): Ensure
 722         aligned_mem is properly set for AVX512-VL floating point masked
 723         stores.
 724
 725         PR target/69175
 726         * ifcvt.c (cond_exec_process_if_block): When removing the last
 727         insn from then_bb, remove also any possible barriers that follow it.
 728
 729 2016-01-12  H.J. Lu  <hongjiu.lu@intel.com>
 730
 731         PR target/68456
 732         PR target/69226
 733         * config/i386/iamcu.h (SIZE_TYPE): New macro.
 734         (PTRDIFF_TYPE): Likewise.
 735         (WCHAR_TYPE): Likewise.
 736         (WCHAR_TYPE_SIZE): Likewise.
 737         (STDINT_LONG32): Likewise.
 738
 739 2016-01-12  Richard Biener  <rguenther@suse.de>
 740
 741         PR tree-optimization/69053
 742         * tree-vect-loop.c (get_initial_def_for_reduction): Properly
 743         convert initial value for cond reductions.
 744
 745 2016-01-12  Richard Biener  <rguenther@suse.de>
 746
 747         PR tree-optimization/69007
 748         * tree-vect-patterns.c (vect_vect_recog_func_ptrs): Move
 749         widen_sum after dot_prod and sad.
 750
 751 2016-01-12  Richard Biener  <rguenther@suse.de>
 752
 753         PR tree-optimization/69168
 754         * tree-vect-loop.c (vect_analyze_loop_2): Reset both main and
 755         pattern stmt SLP type.
 756         * tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Patterns may
 757         end up unused so cope with that case.
 758
 759 2016-01-12  Richard Biener  <rguenther@suse.de>
 760
 761         PR tree-optimization/69157
 762         * tree-vect-stmts.c (vectorizable_mask_load_store): Check
 763         stmts def type only during analyze phase.
 764         (vectorizable_call): Likewise.
 765         (vectorizable_simd_clone_call): Likewise.
 766         (vectorizable_conversion): Likewise.
 767         (vectorizable_assignment): Likewise.
 768         (vectorizable_shift): Likewise.
 769         (vectorizable_operation): Likewise.
 770         (vectorizable_store): Likewise.
 771         (vectorizable_load): Likewise.
 772
 773 2016-01-12  Richard Biener  <rguenther@suse.de>
 774
 775         PR tree-optimization/69174
 776         * tree-vect-stmts.c (vect_mark_relevant): Remove excessive vertical
 777         space.
 778         (vectorizable_load): Properly compute the number of loads needed
 779         for permuted strided SLP loads and do not spuriously assign
 780         to SLP_TREE_VEC_STMTS.
 781
 782 2016-01-12  Andris Pavenis  <andris.pavenis@iki.fi>
 783
 784         * config/i386/djgpp.h (PREFERRED_DEBUGGING_TYPE): Define to DWARF2
 785         (TARGET_ASM_OUTPUT_IDENT): Define to default_asm_output_ident_directive
 786         (MD_EXEC_PREFIX): Remove.
 787         (MD_STARTFILE_PREFIX) Removee.
 788         (FILE_NAME_ABSOLUTE_P): Remove.
 789         (CPP_SPEC): Do not read macros from sys/version.h.
 790         (LINK_COMMAND_SPEC): Remove.
 791         (LOCAL_INCLUDE_DIR): Remove.
 792         (TARGET_ASM_NAMED_SECTION): Define to i386_djgpp_asm_named_section
 793         (TARGET_OS_CPP_BUILTINS): Add DJGPP (non ISO only), __DJGPP, __DJGPP__, unix.
 794         (POST_LINK_SPEC): Define to invoke stubify after linker
 795         (LIBSTDCXX): Remove define
 796         (DBX_REGISTER_NUMBER): Define to svr4_dbx_register_map.
 797         (DEFAULT_PCC_STRUCT_RETURN): Define to 1.
 798         (SUBTARGET_OVERRIDE_OPTIONS): Remove warning about -mbnu2210.
 799         (SUBTARGET_OVERRIDE_OPTIONS): Ignore -fPIC and generate message.
 800         (SUBTARGET_OVERRIDE_OPTIONS): Default to DWARF2 debugging info.
 801         (IX86_MAYBE_NO_LIBGCC_TFMODE): Remove.
 802         (i386_djgpp_asm_named_section): Add propotype of new procedure
 803
 804         * config/i386/xm-djgpp.h (NATIVE_SYSTEM_HEADER_DIR): Define.
 805         (MD_EXEC_PREFIX): Define (moved from config/i386/djgpp.h).
 806         (STANDARD_STARTFILE_PREFIX_1): Define (moved from MD_STARTFILE_PREFIX in config/i386/djgpp.h).
 807         (STANDARD_STARTFILE_PREFIX_2): Define identical to STANDARD_STARTFILE_PREFIX_1.
 808         (LOCAL_INCLUDE_DIR): Define (moved from config/i386/djgpp.h).
 809         (GCC_DRIVER_HOST_INITIALIZATION): Fix reporting fatal installation errors.
 810         (MAX_OFILE_ALIGNMENT): Define to 128.
 811         (HAVE_FTW_H): Undefine as DJGPP do not have nftw, but have ftw.h.
 812
 813         * config/i386/djgpp.c: New file. Add implementation of i386_djgpp_asm_named_section.
 814
 815         * config/i386/djgpp.opt: Remove obsolete option -mbnu210.
 816
 817         * config/i386/t-djgpp: New file. Add djgpp.o to EXTRA_OBJS.
 818         Add rule for building djgpp.o.
 819
 820 2016-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
 821
 822         * config/rs6000/rs6000.c (v2df_reduction_p): New function.
 823         (rtx_is_swappable_p): Reductions are swappable.
 824         (insn_is_swappable_p): V2DF reductions are swappable.
 825
 826 2016-01-11  John David Anglin  <danglin@gcc.gnu.org>
 827
 828         * config/pa/pa.c (pa_emit_move_sequence): Handle floating point
 829         reloads for other unsupported memory operands.
 830
 831 2016-01-12  Kugan Vivekanandarajah  <kuganv@linaro.org>
 832             Jim Wilson  <jim.wilson@linaro.org>
 833
 834         PR target/69194
 835         * config/arm/arm-builtins.c (arm_expand_neon_args): Call
 836         copy_to_mode_reg instead of force_reg.
 837
 838 2016-01-11  H.J. Lu  <hongjiu.lu@intel.com>
 839
 840         PR target/69225
 841         * config/i386/i386.h (TARGET_FLT_EVAL_METHOD): Set to 2 only if
 842         TARGET_80387 is true.
 843
 844 2016-01-11  Jakub Jelinek  <jakub@redhat.com>
 845
 846         PR target/69071
 847         * lra-eliminations.c (move_plus_up): Only move plus up
 848         if subreg of the constant can be simplified into constant
 849         and use the simplified subreg of the constant instead of
 850         the original constant.
 851
 852         * fold-const.c (fold_convertible_p): Don't return true
 853         for conversion of VECTOR_TYPE to same sized integral type.
 854         (fold_convert_loc): Fix up formatting.  Fold conversion of
 855         VECTOR_TYPE to same sized integral type using VIEW_CONVERT_EXPR
 856         instead of NOP_EXPR.
 857
 858         PR tree-optimization/69214
 859         * tree-vrp.c (simplify_cond_using_ranges): Don't propagate
 860         innerop into a comparison if SSA_NAME_OCCURS_IN_ABNORMAL_PHI.
 861         Formatting fix.
 862
 863         PR tree-optimization/69207
 864         * tree-vect-slp.c (vect_get_constant_vectors): For
 865         VECTOR_BOOLEAN_TYPE_P, assert op has integral type instead of
 866         fold_convertible_p to vector_type's element type, and always
 867         use VCE for non-VECTOR_BOOLEAN_TYPE_P.
 868
 869 2016-01-11  Richard Biener  <rguenther@suse.de>
 870
 871         PR tree-optimization/69173
 872         * tree-vect-loop.c (vect_fixup_scalar_cycles_with_patterns): Only
 873         fixup the cycle if all stmts are in a pattern.
 874
 875 2016-01-11  Uros Bizjak  <ubizjak@gmail.com>
 876
 877         PR middle-end/68999
 878         * alias.c (base_alias_check): Move check for addresses with
 879         alignment ANDs before the call for compare_base_decls.
 880         (memrefs_conflict_p): Return -1 for different decls
 881         that went through alignment adjustments.
 882
 883 2016-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 884
 885         PR rtl-optimization/68796
 886         * config/aarch64/aarch64.md (*and<mode>_compare0): New pattern.
 887         * config/aarch64/aarch64.c (aarch64_select_cc_mode): Handle HImode
 888         and QImode comparisons against zero with CC_NZmode.
 889         * config/aarch64/iterators.md (short_mask): New mode_attr.
 890
 891 2016-01-11  H.J. Lu  <hongjiu.lu@intel.com>
 892
 893         * config/i386/sse.md (<avx512>_load<mode>_mask): Remove snprintf.
 894         (<avx512>_store<mode>_mask): Likewise.
 895
 896 2016-01-11  Bernd Schmidt  <bschmidt@redhat.com>
 897             Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 898
 899         PR rtl-optimization/68841
 900         * ifcvt.c (struct noce_if_info): Add orig_x field.
 901         (bbs_ok_for_cmove_arith): Add to_rename parameter.
 902         Don't record conflicts on to_rename if it's present.
 903         Allow memory destinations in sets.
 904         (noce_try_cmove_arith): Call bbs_ok_for_cmove_arith even on simple
 905         blocks, passing orig_x to the checks.
 906         (noce_process_if_block): Set if_info->orig_x appropriately.
 907
 908 2016-01-11  Tom de Vries  <tom@codesourcery.com>
 909
 910         PR tree-optimization/69069
 911         * tree-parloops.c (create_parallel_loop): Add missing phi args.
 912
 913 2016-01-11  Yuri Rumyantsev  <ysrumyan@gmail.com>
 914
 915         PR rtl-optimization/68920
 916         * config/i386/i386.c (ix86_option_override_internal): Restrict number
 917         of conditional moves for  RTL if-conversion to 1 for
 918         TARGET_ONE_IF_CONV_INSN.
 919         * config/i386/i386.h (TARGET_ONE_IF_CONV_INSN): New macros.
 920         * config/i386/x86-tune.def (X86_TUNE_ONE_IF_CONV_INSN): New macros.
 921         * params.def (PARAM_MAX_RTL_IF_CONVERSION_INSNS) : Introduce new
 922         parameter to restirct number of conditional moves for
 923         RTL if-conversion.
 924         * doc/invoke.texi (max-rtl-if-conversion-insns): Document it.
 925         * ifcvt.c (bb_ok_for_noce_convert_multiple_sets): Limit number of
 926         conditionl moves.
 927
 928 2016-01-11  Alexandre Oliva  <aoliva@redhat.com>
 929
 930         PR bootstrap/69123
 931         * var-tracking.c (drop_overlapping_mem_locs): Operate on all
 932         onepart vars.  Fix typo in comment.  Fix reversed condition in
 933         unshare test.
 934         (dataflow_set_remove_mem_locs): Operate on all onepart vars.
 935
 936         PR bootstrap/69123
 937         * var-tracking.c (dump_onepart_variable_differences): New.
 938         (dataflow_set_different): If a detailed dump is requested,
 939         delay early returns and dump differences between onepart
 940         variables present before and after, and added variables.
 941
 942 2016-01-11  Ilya Enkovich  <enkovich.gnu@gmail.com>
 943
 944         PR target/69010
 945         * expr.c (expand_expr_real_1): For boolean vector constants
 946         with a scalar mode use const_scalar_mask_from_tree.
 947         (const_scalar_mask_from_tree): New.
 948         * optabs.c (expand_vec_cond_mask_expr): Use mask mode
 949         assigned to a mask type to handle constants.
 950
 951 2016-01-11  Martin Jambor  <mjambor@suse.cz>
 952
 953         PR ipa/69044
 954         * ipa-cp.c (estimate_local_effects): Do not clone for removal of
 955         useless parameters if we cannot change function signature.
 956
 957 2016-01-11  Martin Jambor  <mjambor@suse.cz>
 958
 959         PR ipa/66616
 960         * cgraphclones.c (duplicate_thunk_for_node): Copy can_change_signature
 961         flag.
 962
 963 2016-01-11  Tom de Vries  <tom@codesourcery.com>
 964
 965         PR tree-optimization/69109
 966         * tree-parloops.c (try_transform_to_exit_first_loop_alt): Don't allow
 967         latch with phi.
 968
 969 2016-01-11  Tom de Vries  <tom@codesourcery.com>
 970
 971         PR tree-optimization/69108
 972         * tree-parloops.c (gather_scalar_reductions): Handle case that outer phi
 973         res is not used in a phi.
 974
 975 2016-01-11  Yury Gribov  <y.gribov@samsung.com>
 976
 977         PR 67425
 978         * common.opt (frandom-seed): Fix parameter name.
 979         * doc/invoke.texi (frandom-seed): Ditto and describe parameter.
 980
 981 2016-01-11  Tom de Vries  <tom@codesourcery.com>
 982
 983         PR tree-optimization/69058
 984         * tree-parloops.c (pass_parallelize_loops::execute): Return 0 if libgomp
 985         not supported.
 986
 987 2016-01-11  Andrew Burgess  <andrew.burgess@embecosm.com>
 988
 989         * config/arc/arc.opt (mdiv-rem): Add period to the end.
 990         (mcode-density): Likewise.
 991
 992 2016-01-10  Tom de Vries  <tom@codesourcery.com>
 993
 994         PR tree-optimization/69062
 995         * tree-parloops.c (loop_has_phi_with_address_arg): New function.
 996         (parallelize_loops): Don't paralelize loop that has phi with address
 997         arg.
 998
 999 2016-01-10  Tom de Vries  <tom@codesourcery.com>
1000
1001         PR tree-optimization/69039
1002         * tree-parloops.c (try_create_reduction_list): Only allow single exit
1003         phi for reduction.
1004
1005 2016-01-09  John David Anglin  <danglin@gcc.gnu.org>
1006
1007         PR middle-end/68743
1008         * match.pd: Require target has function_c99_misc before doing
1009         truncl(extend(x)) and trunc(extend(x)) -> extend(truncf(x)), etc.
1010
1011 2016-01-09  Gerald Pfeifer  <gerald@pfeifer.com>
1012
1013         * configure.ac (isl_options_set_schedule_serialize_sccs): Also
1014         use GMPINC.
1015         * configure: Regenerate.
1016
1017 2016-01-09  Jakub Jelinek  <jakub@redhat.com>
1018
1019         PR middle-end/50865
1020         PR tree-optimization/69097
1021         * fold-const.h (expr_not_equal_to): New prototype.
1022         * fold-const.c: Include stringpool.h and tree-ssanames.h.
1023         (expr_not_equal_to): New function.
1024         * match.pd (X % -Y is the same as X % Y): Don't optimize
1025         unless X is known not to be equal to minimum or Y is known
1026         not to be equal to -1.
1027         * tree-vrp.c (simplify_div_or_mod_using_ranges): Add GSI argument.
1028         fold TRUNC_MOD_EXPR if the second argument is not a power of two.
1029         (simplify_stmt_using_ranges): Adjust caller.
1030         (vrp_finalize): Call set_value_range on SSA_NAMEs before calling
1031         substitute_and_fold.
1032
1033 2016-01-09  Jan Hubicka  <hubicka@ucw.cz>
1034
1035         * ipa-icf.c (sem_item_optimizer::merge_classes): Do not ICE on VAR_DECL
1036         w/o DECL_NAME.
1037
1038 2016-01-08  Jakub Jelinek  <jakub@redhat.com>
1039
1040         PR tree-optimization/69167
1041         * gimple-fold.c (replace_stmt_with_simplification): Also punt if
1042         new SSA_NAME_OCCURS_IN_ABNORMAL_PHI SSA_NAMEs appear in operands of
1043         ops[0] comparison.
1044         * gimple-match-head.c (maybe_push_res_to_seq): Likewise.
1045
1046 2016-01-08  Alan Lawrence  <alan.lawrence@arm.com>
1047             Richard Biener  <rguenther@suse.de>
1048
1049         PR tree-optimization/68707
1050         * tree-vect-slp.c (vect_analyze_slp_instance): Cancel permuted SLP
1051         instances that can be handled via vect_load_lanes.
1052
1053 2016-01-08  Uros Bizjak  <ubizjak@gmail.com>
1054
1055         * symtab.c (symtab_node::equal_address_to): Return -1 instead of 2
1056         if we can't determine address equivalence.
1057         * alias.c (compare_base_decl): Update for changed return value of
1058         symtab_node::equal_address_to.
1059
1060 2016-01-08  Jason Merrill  <jason@redhat.com>
1061
1062         PR c++/68983
1063         PR c++/67557
1064         * function.c (assign_temp): Guard against TREE_ADDRESSABLE types here.
1065         * expr.c (store_field): Not here.
1066         * tree-cfgcleanup.c (fixup_noreturn_call): Don't clear LHS of a
1067         call with TREE_ADDRESSABLE type.
1068         * tree-cfg.c (verify_gimple_call): Adjust.
1069
1070 2016-01-08  Olivier Hainque  <hainque@adacore.com>
1071
1072         * config/vxworks.h (VXWORKS_LIBGCC_SPEC): Don't link shared RTPs with
1073         libc_internal.
1074
1075 2016-01-08  Alan Lawrence  <alan.lawrence@arm.com>
1076
1077         * gcc.target/rs6000/paired.md (reduc_smax_v2sf): Rename to...
1078         (reduc_smax_scal_v2sf): ...here, make result SFmode, extract element.
1079         (reduc_smin_v2sf): Rename to...
1080         (reduc_smin_scal_v2sf): ...here, make result SFmode, extract element.
1081         (reduc_splus_v2sf): Rename to...
1082         (reduc_plus_scal_v2sf): ...here, make result SFmode, extract element.
1083
1084 2016-01-08  Jakub Jelinek  <jakub@redhat.com>
1085
1086         PR tree-optimization/69162
1087         * gimplify.c (gimplify_va_arg_expr): Encode original type of
1088         valist argument in another argument.
1089         (gimplify_modify_expr): Adjust for the above change.  Cleanup.
1090         * tree-stdarg.c (expand_ifn_va_arg_1): Use new 3rd argument
1091         to determine the va_list type, build a MEM_REF instead of
1092         build_fold_indirect_ref.
1093
1094         PR tree-optimization/69172
1095         * gimple-fold.c (gimple_fold_builtin_memory_chk): Pass type to
1096         gimple_build.
1097
1098 2016-01-08  Thomas Preud'homme  <thomas.preudhomme@arm.com>
1099
1100         PR tree-optimization/67781
1101         * tree-ssa-math-opts.c (find_bswap_or_nop): Zero out bytes in cmpxchg
1102         and cmpnop in two steps: first the ones not accessed in original
1103         gimple expression in a endian independent way and then the ones not
1104         accessed in the final result in an endian-specific way.
1105
1106 2016-01-08  Jakub Jelinek  <jakub@redhat.com>
1107
1108         PR tree-optimization/69083
1109         * tree-vect-slp.c (vect_get_constant_vectors): For
1110         VECTOR_BOOLEAN_TYPE_P assert op is fold_convertible_p to vector_type's
1111         element type.  If op is fold_convertible_p to vector_type's element
1112         type, use NOP_EXPR instead of VCE.
1113
1114 2016-01-08  Segher Boessenkool  <segher@kernel.crashing.org>
1115
1116         PR rtl-optimization/67778
1117         PR rtl-optimization/68634
1118         PR rtl-optimization/68909
1119         * shrink-wrap.c (try_shrink_wrapping): Add comment.  Don't pop
1120         block from the stack until done with it.  Remove a superfluous
1121         bitmap set.  Remove a superfluous bitmap test.
1122
1123 2016-01-07  Martin Sebor  <msebor@redhat.com>
1124
1125         PR c/68966
1126         * doc/extend.texi (__atomic Builtins, __sync Builtins): Document
1127         constraint on the type of arguments.
1128
1129 2016-01-07  Andreas Tobler  <andreast@gcc.gnu.org>
1130
1131         * config/arm/freebsd.h: Rename SUBTARGET_OVERRIDE_OPTIONS to
1132         SUBTARGET_OVERRIDE_INTERNAL_OPTIONS. Adjust to check
1133         unaligned_access on the gcc_options set.
1134         * config/arm/arm.c (arm_option_override_internal): Use
1135         SUBTARGET_OVERRIDE_INTERNAL_OPTIONS.
1136
1137 2016-01-07  Uros Bizjak  <ubizjak@gmail.com>
1138
1139         PR target/69140
1140         * config/i386/i386.c (ix86_frame_pointer_required): Enable
1141         frame pointer for TARGET_64BIT_MS_ABI when stack is misaligned.
1142
1143 2016-01-07  Uros Bizjak  <ubizjak@gmail.com>
1144
1145         Revert
1146         2016-01-06  Uros Bizjak  <ubizjak@gmail.com>
1147
1148         PR target/69140
1149         * config/i386/i386.c (ix86_expand_prologue): Declare fs.sp_valid
1150         depending on frame_pointer_needed before remaining integer and SSE
1151         registers are saved.
1152
1153 2016-01-07  Sandra Loosemore  <sandra@codesourcery.com>
1154
1155         PR 1078
1156         * doc/extend.texi (Nvidia PDX Function Attributes): New section.
1157
1158 2016-01-07  H.J. Lu  <hongjiu.lu@intel.com>
1159
1160         PR target/69171
1161         * config/i386/sse.md (<sse>_sqrt<mode>2<mask_name><round_name>):
1162         Use the "xBm" constraint.
1163         (float<sseintvecmodelower><mode>2<mask_name><round_name):
1164         Likewise.
1165         (sse_cvtsi2ss<round_name>): Use round_nimm_scalar_predicate.
1166         (sse_cvtsi2ssq<round_name>): Likewise.
1167         (sse_cvtss2si<round_name>): Likewise.
1168         (sse_cvtss2siq<round_name>): Likewise.
1169         (sse2_cvtsi2sdq<round_name>): Likewise.
1170         (sse2_cvtsd2si<round_name>): Likewise.
1171         (sse2_cvtsd2siq<round_name>): Likewise.
1172         * config/i386/subst.md (round_nimm_scalar_predicate): New
1173         predicate.
1174
1175 2015-12-15  Bernd Schmidt  <bschmidt@redhat.com>
1176
1177         PR middle-end/67639
1178         * varasm.c (make_decl_rtl): Mark invalid register vars as
1179         DECL_EXTERNAL.
1180
1181         PR rtl-optimization/66206
1182         * bt-load.c (find_btr_use): Change first arg to be a pointer to an rtx.
1183         All callers changed.
1184
1185 2016-01-07  Jakub Jelinek  <jakub@redhat.com>
1186
1187         PR tree-optimization/69141
1188         * tree-ssa-pre.c: Include langhooks.h.
1189         (eliminate_dom_walker::before_dom_children): Use
1190         lang_hooks.decl_printable_name instead of
1191         cgraph_node::get ()->name ().
1192
1193         PR middle-end/68960
1194         * gimple-expr.c (copy_var_decl): If var has DECL_USER_ALIGN set, copy
1195         it and DECL_ALIGN too.
1196
1197 2016-01-06  Robert Suchanek  <robert.suchanek@imgtec.com>
1198
1199         * config/mips/mips-ftypes.def: Sort to lexicographical order.
1200
1201 2016-01-06  Uros Bizjak  <ubizjak@gmail.com>
1202
1203         PR target/69140
1204         * config/i386/i386.c (ix86_expand_prologue): Declare fs.sp_valid
1205         depending on frame_pointer_needed before remaining integer and SSE
1206         registers are saved.
1207
1208 2015-01-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
1209
1210         * config/rs6000/vsx.md (*p9_vecload_<mode>): Replace VSX_M
1211         mode iterator with VSX_M2.
1212         (*p9_vecstore_<mode>): Likewise.
1213         (*vsx_le_permute_<mode>): Restrict to !TARGET_P9_VECTOR.
1214         (*vsx_le_perm_load_<mode> for VSX_LE_128): Likewise.
1215         (*vsx_le_perm_store_<mode> for VSX_LE_128): Likewise.
1216         (define_split for VSX_LE128 stores): Likewise.
1217         (define_peephole2 for TImode LE swaps): Likewise.
1218         (define_split for VSX_LE128 post-reload stores): Likewise.
1219
1220 2016-01-06  Marek Polacek  <polacek@redhat.com>
1221
1222         PR sanitizer/69099
1223         * convert.c (convert_to_integer_1): Adjust call to
1224         ubsan_instrument_float_cast.  Use NULL_TREE instead of NULL.
1225         * ubsan.c (ubsan_instrument_float_cast): Drop the ARG parameter.  Use
1226         EXPR instead of ARG.
1227         * ubsan.h (ubsan_instrument_float_cast): Adjust declaration.
1228
1229 2016-01-05  Sandra Loosemore  <sandra@codesourcery.com>
1230
1231         PR 1078
1232         * doc/extend.texi (RL78 Variable Attributes): New section.
1233
1234 2016-01-05  Marek Polacek  <polacek@redhat.com>
1235
1236         PR c/69104
1237         * builtins.c (get_memmodel): Use expansion point location rather than
1238         the input location.  Call warning_at rather than warning.
1239         (expand_builtin_atomic_compare_exchange): Likewise.
1240         (expand_builtin_atomic_load): Likewise.
1241         (expand_builtin_atomic_store): Likewise.
1242         (expand_builtin_atomic_clear): Likewise.
1243
1244 2016-01-05  H.J. Lu  <hongjiu.lu@intel.com>
1245
1246         PR target/68991
1247         * config/i386/i386.c (ix86_expand_vector_logical_operator):
1248         Replace nonimmediate_operand with vector_operand.
1249         * config/i386/predicates.md (vector_operand): New predicate.
1250         (general_vector_operand): Replace nonimmediate_operand with
1251         vector_operand.
1252         * config/i386/sse.md: Replace nonimmediate_operand with
1253         vector_operand and m constraint with Bm constraint on SSE
1254         patterns with 16-byte memory operand.
1255         * config/i386/subst.md (round_nimm_predicate): Replace
1256         nonimmediate_operand with vector_operand.
1257         (round_saeonly_nimm_predicate): Likewise.
1258         (round_saeonly_nimm_scalar_predicate): New.
1259
1260 2016-01-05  H.J. Lu  <hongjiu.lu@intel.com>
1261
1262         PR target/68991
1263         * config/i386/constraints.md (Bm): New constraint.
1264         * config/i386/predicates.md (vector_memory_operand): New
1265         predicate.
1266         * config/i386/sse.md: Replace xm with xBm in plusminus and
1267         any_logic patterns.
1268
1269 2016-01-05  Sandra Loosemore  <sandra@codesourcery.com>
1270
1271         PR 1078
1272         * doc/extend.texi (V850 Function Attributes): New section.
1273         (V850 Variable Attributes): New section.
1274
1275 2016-01-05  Sandra Loosemore  <sandra@codesourcery.com>
1276
1277         PR 1078
1278         * doc/extend.texi (MicroBlaze Function Attributes): Document
1279         interrupt_handler and fast_interrupt attributes.
1280
1281 2016-01-05  Sergei Trofimovich  <siarheit@google.com>
1282
1283         PR other/60465
1284         * config/ia64/ia64.c (ia64_expand_load_address): Use gprel64
1285         for local symbolic operands.
1286         * config/ia64/predicates.md (local_symbolic_operand64): New
1287         predicate.
1288
1289 2016-01-05  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
1290
1291         PR rtl-optimization/68651
1292         * combine.c (combine_simplify_rtx): Canonicalize x + x into
1293         x << 1.
1294
1295 2016-01-05  Nathan Sidwell  <nathan@acm.org>
1296
1297         * alias.c (compare_base_decls): Use symtab_node::get.
1298
1299 2016-01-05  Nick Clifton  <nickc@redhat.com>
1300
1301         PR target/68770
1302         * ira-costs.c (copy_cost): Initialise the t_icode field of the
1303         secondary_reload_info structure.
1304
1305         PR target/66655
1306         * config/i386/cygming.h (MAKE_DECL_ONE_ONLY): Define to use weak
1307         decls if weak support is available.
1308
1309 2016-01-04  Martin Sebor  <msebor@redhat.com>
1310
1311         * doc/invoke.texi (Warning Options): Document -Winvalid-memory-model.
1312
1313 2016-01-04  Michael Meissner  <meissner@linux.vnet.ibm.com>
1314
1315         * config/rs6000/rs6000-cpus.def (ISA_3_0_MASKS_SERVER): Add
1316         OPTION_MASK_P9_DFORM.
1317
1318         * config/rs6000/constraints.md (wo constraint): New constraint for
1319         ISA 3.0 (power9).
1320
1321         * config/rs6000/rs6000.c (rs6000_debug_reg_global): Add support
1322         for wo constraint.
1323         (rs6000_init_hard_regno_mode_ok): Likewise.
1324
1325         * config/rs6000/rs6000.h (r6000_reg_class_enum): Add support for
1326         wo constraint.
1327
1328         * config/rs6000/altivec.md (altivec_vperm_<mode>): Clean up vperm
1329         expanders not to have constraints.  Add support for ISA 3.0 xxperm
1330         instruction.  Add support for fusing xxlor with xxperm.
1331         (altivec_vperm_<mode>_internal): Likewise.
1332         (altivec_vperm_v8hiv16qi): Likewise.
1333         (altivec_vperm_<mode>v16q): Likewise.
1334         (altivec_vperm_<mode>_uns): Likewise.
1335         (vperm_v8hiv4si): Likewise.
1336         (vperm_v16qiv8hi): Likewise.
1337
1338         * doc/md.texi (RS/6000 constraints): Document wo constraint.
1339
1340 2016-01-04  Jakub Jelinek  <jakub@redhat.com>
1341
1342         Update copyright years.
1343
1344         * gcc.c (process_command): Update copyright notice dates.
1345         * gcov-dump.c (print_version): Ditto.
1346         * gcov.c (print_version): Ditto.
1347         * gcov-tool.c (print_version): Ditto.
1348         * gengtype.c (create_file): Ditto.
1349         * doc/cpp.texi: Bump @copying's copyright year.
1350         * doc/cppinternals.texi: Ditto.
1351         * doc/gcc.texi: Ditto.
1352         * doc/gccint.texi: Ditto.
1353         * doc/gcov.texi: Ditto.
1354         * doc/install.texi: Ditto.
1355         * doc/invoke.texi: Ditto.
1356
1357 2016-01-04  Eric Botcazou  <ebotcazou@adacore.com>
1358
1359         * config/arm/arm.c (aapcs_vfp_allocate_return_reg): Treat all integer
1360         modes larger than TImode as TImode if NEON is not enabled.
1361
1362 2016-01-04  Eric Botcazou  <ebotcazou@adacore.com>
1363
1364         PR target/69100
1365         * config/sparc/sparc.h (FUNCTION_ARG_REGNO_P): Return true in 64-bit
1366         mode for %f0-%f31 only if TARGET_FPU.
1367
1368 2016-01-04  Eric Botcazou  <ebotcazou@adacore.com>
1369
1370         PR target/69072
1371         * config/sparc/sparc.c (scan_record_type): Take into account subfields
1372         to compute the PACKED_P predicate.
1373         (function_arg_record_value): Minor tweaks.
1374
1375 2016-01-04  Thomas Preud'homme  <thomas.preudhomme@arm.com>
1376
1377         * doc/install.texi (--with-multilib-list): Describe the meaning of the
1378         option for arm*-*-* targets.
1379
1380 2016-01-03  Sandra Loosemore  <sandra@codesourcery.com>
1381
1382         * doc/extend.texi (Common Function Attributes): Move docs for
1383         MSP430-specific attributes to....
1384         (MSP430 Function Attributes): ...here.  Delete the redundant
1385         entries and copy-edit the remaining text.
1386         (MSP430 Variable Attributes): Use uniform format for index
1387         entries and add a cross-reference to the corresponding function
1388         attribute docs.
1389
1390 2016-01-03  Vladimír Čunát  <vcunat@gmail.com>
1391
1392         * doc/invoke.texi (RS/6000 and PowerPC Options): Fix
1393         -finite-math typo.
1394         (x86 Options): Likewise.
1395
1396 2016-01-01  Sandra Loosemore  <sandra@codesourcery.com>
1397
1398         PR 1078
1399
1400         * extend.texi (Common Function Attributes) <no_stack_limit>: New.
1401         * invoke.texi (Code Gen Options) <-fno-stack-limit>: Add pointer
1402         to corresponding attribute.
1403
1404 2016-01-01  Sandra Loosemore  <sandra@codesourcery.com>
1405
1406         * doc/extend.texi (Common Function Attributes) <noplt>: Move
1407         to correct alphabetization of table.  Copy-edit and correct
1408         markup.
1409         <stack_protect>: Likewise.
1410         <target_clones>: Likewise.
1411         <simd>: Likewise.
1412         * doc/invoke.texi (Optimize Options) <-fstack-protector-explicit>:
1413         Correct punctuation.
1414         (Code Gen Options) <-fno-plt>: Copy-edit.
1415
1416 2016-01-01  Bernd Edlinger  <bernd.edlinger@hotmail.de>
1417
1418         PR target/68917
1419         * config/tilegx/tilegx.md (clzsi2): Don't create DI subregs of
1420         SI values.  Explicitly convert SI to DI and vice-versa.
1421
1422 2016-01-01  Jakub Jelinek  <jakub@redhat.com>
1423
1424         PR tree-optimization/69070
1425         * tree-ssa-math-opts.c (gimple_expand_builtin_pow): Only test
1426         REAL_VALUE_ISSIGNALING_NAN on arg0 if arg0 is a REAL_CST.
1427
1428         PR sanitizer/69055
1429         * ubsan.c (ubsan_instrument_float_cast): Call
1430         initialize_sanitizer_builtins.
1431
1432         PR target/69015
1433         * ifcvt.c (find_cond_trap): Give up if returnjump_p (jump).
1434 \f
1435 Copyright (C) 2016 Free Software Foundation, Inc.
1436
1437 Copying and distribution of this file, with or without modification,
1438 are permitted in any medium without royalty provided the copyright
1439 notice and this notice are preserved.