gcc/ChangeLog

   1 2012-01-12  Georg-Johann Lay  <avr@gjlay.de>
   2
   3         PR target/51756
   4         * config/avr/avr.c (avr_encode_section_info): Test for absence of
   5         DECL_EXTERNAL when checking for initializers of progmem variables.
   6
   7 2012-01-12  Ira Rosen  <irar@il.ibm.com>
   8
   9         PR tree-optimization/51799
  10         * tree-vect-patterns.c (vect_recog_over_widening_pattern): Check
  11         that the last operation is a type demotion.
  12
  13 2012-01-12  Uros Bizjak  <ubizjak@gmail.com>
  14
  15         * config/i386/i386.md (*zero_extendsidi2_rex64): Correct movl template.
  16         (x86_shift<mode>_adj_1): Remove operand constraint from operand 3.
  17
  18 2012-01-11  Jakub Jelinek  <jakub@redhat.com>
  19
  20         PR bootstrap/51796
  21         * combine.c (distribute_notes): If i3 is a noreturn call,
  22         allow old_size to be equal to args_size and make sure the
  23         noreturn call gets REG_ARGS_SIZE note.
  24         * expr.c (fixup_args_size_notes): Put REG_ARGS_SIZE notes
  25         on noreturn calls even when the delta is 0.
  26
  27 2012-01-11  Nathan Sidwell  <nathan@acm.org>
  28
  29         * gcov.c (STRING_SIZE): Remove.
  30         (generate_results): Erase annotations for source files with no
  31         coverage information.
  32         (read_line): New.
  33         (output_lines): Use it.
  34
  35 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
  36
  37         * gimple.h (gimplify_body): Remove first argument.
  38         * gimplify.c (copy_if_shared): Add DATA argument.  Do not create the
  39         pointer set here, instead just pass DATA to walk_tree.
  40         (unshare_body): Remove BODY_P argument and adjust.  Create the pointer
  41         set here and invoke copy_if_shared on the size trees of DECL_RESULT.
  42         (unvisit_body): Likewise, but with unmark_visited.
  43         (gimplify_body): Remove BODY_P argument and adjust.
  44         (gimplify_function_tree): Adjust call to gimplify_body.
  45         * omp-low.c (finalize_task_copyfn): Likewise.
  46
  47 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
  48
  49         * tree.h (build_function_decl_skip_args): Add boolean parameter.
  50         (build_function_type_skip_args): Delete.
  51         * tree.c (build_function_type_skip_args): Make static and add
  52         SKIP_RETURN parameter.  Fix thinko in the handling of variants.
  53         (build_function_decl_skip_args): Add SKIP_RETURN parameter and
  54         pass it to build_function_type_skip_args.
  55         * cgraph.h (cgraph_function_versioning): Add boolean parameter.
  56         (tree_function_versioning): Likewise.
  57         * cgraph.c (cgraph_create_virtual_clone): Adjust call to
  58         build_function_decl_skip_args.
  59         * cgraphunit.c (cgraph_function_versioning): Add SKIP_RETURN parameter
  60         and pass it to build_function_decl_skip_args/tree_function_versioning.
  61         (cgraph_materialize_clone): Adjust call to tree_function_versioning.
  62         * ipa-inline-transform.c (save_inline_function_body): Likewise.
  63         * trans-mem.c (ipa_tm_create_version): Likewise.
  64         * tree-sra.c (modify_function): Ditto for cgraph_function_versioning.
  65         * tree-inline.c (declare_return_variable): Remove always-true test.
  66         (tree_function_versioning): Add SKIP_RETURN parameter.  If the function
  67         returns non-void and SKIP_RETURN, create a void-typed RESULT_DECL.
  68         * ipa-split.c (split_function): Skip the return value for the split
  69         part if it doesn't return.
  70
  71 2012-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
  72
  73         PR tree-optimization/49642
  74         * ipa-split.c (forbidden_dominators): New variable.
  75         (check_forbidden_calls): New function.
  76         (dominated_by_forbidden): Likewise.
  77         (consider_split): Check for forbidden dominators.
  78         (execute_split_functions): Initialize and free forbidden
  79         dominators info; call check_forbidden_calls.
  80
  81 2012-01-11  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
  82
  83         * config/arm/arm.md (mov_notscc): Use MVN for false condition.
  84
  85 2012-01-11  Nick Clifton  <nickc@redhat.com>
  86
  87         * config/rx/rx.md (return): Define pattern.
  88
  89 2012-01-11  Richard Guenther  <rguenther@suse.de>
  90
  91         * doc/extend.texi (malloc attribute): Adjust according to
  92         implementation.
  93
  94 2012-01-10  Aldy Hernandez  <aldyh@redhat.com>
  95             Patrick Marlier  <patrick.marlier@gmail.com>
  96
  97         PR middle-end/51516
  98         * trans-mem.c (get_cg_data): Traverse aliases if requested.
  99         (ipa_tm_scan_calls_block): Update parameters to get_cg_data.
 100         (ipa_tm_note_irrevocable): Same.
 101         (ipa_tm_scan_irr_block): Same.
 102         (ipa_tm_decrement_clone_counts): Same.
 103         (ipa_tm_scan_irr_function): Same.
 104         (ipa_tm_create_version_alias): Same.
 105         (ipa_tm_create_version): Same.
 106         (ipa_tm_transform_calls_redirect): Same.
 107         (ipa_tm_transform_calls): Same.
 108         (ipa_tm_transform_transaction): Same.
 109         (ipa_tm_execute): Same.
 110
 111 2012-01-10  Richard Guenther  <rguenther@suse.de>
 112
 113         PR middle-end/51806
 114         * opts.c (common_handle_option): Handle -Werror.
 115
 116 2012-01-10  Andreas Schwab  <schwab@linux-m68k.org>
 117
 118         * config/m68k/sync.md ("atomic_compare_and_swap<mode>_1"): Fix
 119         operand number.
 120
 121 2012-01-10  Jason Merrill  <jason@redhat.com>
 122
 123         * doc/invoke.texi (C++ Dialect Options): Update -fabi-version=6
 124         information.
 125
 126 2012-01-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 127
 128         * configure.ac (gcc_cv_as_ix86_tlsgdplt): Check if linker
 129         supports R_386_TLS_GD_PLT reloc.
 130         (gcc_cv_as_ix86_tlsldmplt): Check if linker
 131         supports R_386_TLS_LDM_PLT reloc.
 132         * configure: Regenerate.
 133         * config.in: Regenerate.
 134
 135 2012-01-10  Georg-Johann Lay  <avr@gjlay.de>
 136
 137         PR target/49868
 138         Extend __pgmx semantics to linearize memory.
 139         * config/avr/avr.md (mov<mode>): Use avr_xload_libgcc_p to
 140         determine if code comes inline or from libgcc.
 141         (MOVMEM_r_d:HI): Add "w" to constraint for better preference.
 142         (movmem_qi, movmem_qi): Set constraint #2 to "n".
 143         (movmem_qi_elpm, movmem_hi_elpm): Remove insns.
 144         (movmemx_qi, movmemx_hi): New insns.
 145         (xload_<mode>_libgcc): Rewrite to new insn condition.
 146         (xload_<mode>): Remove insns.
 147         * config/avr/avr.c (avr_out_xload): Rewrite: Only need to handle
 148         cases that don't satisfy avr_xload_libgcc_p().
 149         (avr_addr_space_convert): Allow converting in any direction.
 150         (avr_addr_space_subset_p): Return always true.
 151         (avr_xload_libgcc_p): Rewrite to fit new __pgmx semantics.
 152         (avr_emit_movmemhi): Ditto.
 153         (avr_out_lpm): No need to handle ADDR_SPACE_PGMX any more.
 154         (avr_out_movmem): Ditto.
 155         (AVR_SYMBOL_FLAG_PROGMEM): New macro.
 156         (AVR_SYMBOL_SET_ADDR_SPACE): New macro.
 157         (AVR_SYMBOL_GET_ADDR_SPACE): New macro.
 158         (avr_encode_section_info): Encode 'progmem' in symbol flags.
 159         (output_reload_in_const): Don't zero-extend any 24-bit symbols.
 160
 161 2012-01-10  Richard Guenther  <rguenther@suse.de>
 162
 163         PR tree-optimization/50913
 164         * graphite-scop-detection.c (stmt_has_simple_data_refs_p):
 165         Require data-refs to be representable by Graphite with respect
 166         to any loop nest.
 167
 168 2012-01-10  Uros Bizjak  <ubizjak@gmail.com>
 169
 170         * config/i386/constraints.md ("L"): Return true for 0xffffffff.
 171         * config/i386/i386.c (*anddi_1): Emit AND with 0xffffffff as MOV.
 172
 173 2012-01-10  Tom de Vries  <tom@codesourcery.com>
 174
 175         PR rtl-optimization/51271
 176         * dwarf2cfi.c (scan_trace): Save and restore cur_row->reg_save when
 177         handling annulled branch.
 178
 179 2012-01-10  Richard Henderson  <rth@redhat.com>
 180
 181         * config/arm/arm.c (arm_vectorize_vec_perm_const_ok,
 182         TARGET_VECTORIZE_VEC_PERM_CONST_OK, neon_split_vcombine, MAX_VECT_LEN,
 183         struct expand_vec_perm_d, arm_expand_vec_perm_1, arm_expand_vec_perm,
 184         arm_evpc_neon_vuzp, arm_evpc_neon_vzip, arm_evpc_neon_vrev,
 185         arm_evpc_neon_vtrn, arm_evpc_neon_vtbl, arm_expand_vec_perm_const_1,
 186         arm_expand_vec_perm_const): New.
 187         * config/arm/arm-protos.h: Update.
 188         * config/arm/neon.md (UNSPEC_VCONCAT): New.
 189         (*neon_vswp<VDQX>): New.
 190         (neon_vcombine<VDX>): Use neon_split_vcombine.
 191         (neon_vtbl1v16qi, neon_vtbl2v16qi, neon_vcombinev16qi): New.
 192         * config/arm/vec-common.md (vec_perm_const<VALL>): New.
 193         (vec_perm<VE>): New.
 194
 195 2012-01-10  Richard Henderson  <rth@redhat.com>
 196
 197         * config/arm/arm.c (arm_gen_compare_reg): Add scratch argument;
 198         use it if reload_completed.
 199         (arm_legitimize_sync_memory, arm_emit, arm_insn_count, arm_count,
 200         arm_output_asm_insn, arm_process_output_memory_barrier,
 201         arm_output_memory_barrier, arm_ldrex_suffix, arm_output_ldrex,
 202         arm_output_strex, arm_output_it, arm_output_op2, arm_output_op3,
 203         arm_output_sync_loop, arm_get_sync_operand, FETCH_SYNC_OPERAND,
 204         arm_process_output_sync_insn, arm_output_sync_insn,
 205         arm_sync_loop_insns, arm_call_generator, arm_expand_sync): Remove.
 206         (arm_pre_atomic_barrier, arm_post_atomic_barrier): New.
 207         (arm_emit_load_exclusive, arm_emit_store_exclusive): New.
 208         (emit_unlikely_jump): New.
 209         (arm_expand_compare_and_swap, arm_split_compare_and_swap): New.
 210         (arm_split_atomic_op): New.
 211         * config/arm/arm-protos.h: Update.
 212         * config/arm/arm.h (enum arm_sync_generator_tag): Remove.
 213         (struct arm_sync_generator): Remove.
 214         * config/arm/arm.md (VUNSPEC_SYNC_COMPARE_AND_SWAP, VUNSPEC_SYNC_LOCK,
 215         VUNSPEC_SYNC_OP, VUNSPEC_SYNC_NEW_OP, VUNSPEC_SYNC_OLD_OP): Remove.
 216         (VUNSPEC_ATOMIC_CAS, VUNSPEC_ATOMIC_XCHG, VUNSPEC_ATOMIC_OP): New.
 217         (VUNSPEC_LL, VUNSPEC_SC): New.
 218         (sync_result, sync_memory, sync_required_value, sync_new_value,
 219         sync_t1, sync_t2, sync_release_barrier, sync_op): Remove.
 220         (attr length): Don't use arm_sync_loop_insns.
 221         (cbranch_cc, cstore_cc): Update call to arm_gen_compare_reg.
 222         (movsfcc, movdfcc): Likewise.
 223         * config/arm/constraints.md (Ua): New.
 224         * config/arm/prediates.md (mem_noofs_operand): New.
 225         (sync_compare_and_swap<QHSD>, sync_lock_test_and_set<QHSD>): Remove.
 226         (sync_clobber, sync_t2_reqd): Remove.
 227         (sync_<syncop><QHSD>, sync_nand<QHSD>): Remove.
 228         (sync_new_<syncop><QHSD>, sync_new_nand<QHSD>): Remove.
 229         (sync_old_<syncop><QHSD>, sync_old_nand<QHSD>): Remove.
 230         (arm_sync_compare_and_swap<SIDI>): Remove.
 231         (arm_sync_compare_and_swap<NARROW>): Remove.
 232         (arm_sync_lock_test_and_set<SIDI>): Remove.
 233         (arm_sync_lock_test_and_set<NARROW>): Remove.
 234         (arm_sync_new_<syncop><SIDI>): Remove.
 235         (arm_sync_new_<syncop><NARROW>): Remove.
 236         (arm_sync_new_nand<SIDI>): Remove.
 237         (arm_sync_new_nand<NARROW>): Remove.
 238         (arm_sync_old_<syncop><SIDI>): Remove.
 239         (arm_sync_old_<syncop><NARROW>): Remove.
 240         (arm_sync_old_nand<SIDI>): Remove.
 241         (arm_sync_old_nand<NARROW>): Remove.
 242         (*memory_barrier): Merge arm_output_memory_barrier.
 243         (atomic_compare_and_swap<QHSD>): New.
 244         (atomic_compare_and_swap<NARROW>_1): New.
 245         (atomic_compare_and_swap<SIDI>_1): New.
 246         (atomic_exchange<QHSD>): New.
 247         (cas_cmp_operand, cas_cmp_str): New.
 248         (atomic_op_operand, atomic_op_str): New.
 249         (atomic_<syncop><QHSD>, atomic_nand<QHSD>): New.
 250         (atomic_fetch_<syncop><QHSD>, atomic_fetch_nand<QHSD>): New.
 251         (atomic_<syncop>_fetch<QHSD>, atomic_nand_fetch<QHSD>): New.
 252         (arm_load_exclusive<NARROW>): New.
 253         (arm_load_exclusivesi, arm_load_exclusivedi): New.
 254         (arm_store_exclusive<QHSD>): New.
 255
 256 2012-01-09  Michael Meissner  <meissner@linux.vnet.ibm.com>
 257
 258         * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Add DF
 259         reload patterns if -mvsx-scalar-memory.
 260
 261         * config/rs6000/vsx.md (vsx_xscvspdp): Allow xscvspdp to be
 262         generated, even -mno-vsx-scalar-double was used.
 263         (vsx_xscvdpsp_scalar): Likewise.
 264         (vsx_xscvspdp_scalar2): Likewise.
 265
 266 2012-01-09  Tom de Vries  <tom@codesourcery.com>
 267             Andrew Pinski  <apinski@cavium.com>
 268
 269         PR debug/51471
 270         * reorg.c (fill_slots_from_thread): Don't speculate
 271         frame-related insns.
 272
 273 2012-01-09  Richard Sandiford  <rdsandiford@googlemail.com>
 274
 275         * sched-int.h (bb_note): Move to...
 276         * basic-block.h: ...here.
 277         * haifa-sched.c (bb_note): Move to...
 278         * cfgrtl.c: ...here.
 279         * function.c (next_block_for_reg): New function.
 280         (move_insn_for_shrink_wrap): Likewise.
 281         (prepare_shrink_wrap): Rewrite to use the above.
 282
 283 2012-01-09  Aldy Hernandez  <aldyh@redhat.com>
 284
 285         * gimple.c (is_gimple_non_addressable): Remove.
 286         * gimple.h: Remove is_gimple_non_addressable.
 287         * gimplify.c (gimplify_modify_expr_rhs): Use is_gimple_reg instead of
 288         is_gimple_non_addressable.
 289         * trans-mem.c (expand_assign_tm): Same.
 290
 291 2012-01-09  Richard Guenther  <rguenther@suse.de>
 292
 293         PR tree-optimization/51775
 294         * tree-ssa-sccvn.c (visit_use): Value-number throwing stmts.
 295         * tree-ssa-pre.c (eliminate): Properly fixup EH info.
 296
 297 2012-01-09  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
 298
 299         * config/arm/arm-cores.def (cortex-a15): Use cortex_a15_tune for
 300         tuning parameters.
 301         * config/arm/arm.c (arm_cortex_a15_tune): New static variable.
 302
 303 2012-01-09  Richard Guenther  <rguenther@suse.de>
 304
 305         * tree-streamer-out.c (write_ts_optimization): Fix spelling.
 306
 307 2012-01-08  Jan Hubicka  <jh@suse.cz>
 308
 309         PR tree-optimize/51680
 310         * ipa-inline-analyss.c (evaluate_properties_for_edge): Fix condition
 311         on when known_vals needs to be computed; cleanup.
 312
 313 2012-01-08  Jan Hubicka  <jh@suse.cz>
 314
 315         PR tree-optimize/51694
 316         * ipa-cp.c (ipa_get_indirect_edge_target): Add bounds checks.
 317
 318 2012-01-08  Jonathan Wakely  <jwakely.gcc@gmail.com>
 319
 320         * doc/cpp.texi (Predefined Macros): __STRICT_ANSI__ is defined
 321         for -std=c++98 and -std=c++11 too.
 322
 323 2012-01-08  Chung-Lin Tang  <cltang@codesourcery.com>
 324
 325         * cfgloop.c (cancel_loop): Add free() of bbs array.
 326
 327 2012-01-07  Jan Hubicka  <jh@suse.cz>
 328
 329         PR tree-optimization/51600
 330         * ipa-inline-analysis.c (estimate_edge_devirt_benefit): Disable code
 331         that benefits small functions.
 332
 333 2012-01-07  Jan Hubicka  <jh@suse.cz>
 334
 335         * ipa-inline.c (want_inline_small_function_p): Fix formating.
 336
 337 2012-01-07  Jan Hubicka  <jh@suse.cz>
 338
 339         PR tree-optimization/51680
 340         * ipa-inline.c (want_inline_small_function_p): Be more lax on functions
 341         whose inlining reduce unit size.
 342
 343 2012-01-07  Alexandre Oliva  <aoliva@redhat.com>
 344
 345         PR bootstrap/51725
 346         * cselib.c (new_elt_loc_list): Promote addr_list to canonical node.
 347         Add canonical node to containing_mem chain after the non-canonical
 348         one, even if there weren't any locs to propagate.
 349         (remove_useless_values): Keep only canonical values.
 350         (add_mem_for_addr, cselib_lookup_mem): Canonicalize addr.
 351         (cselib_invalidate_mem): Likewise.  Ensure v is canonical, and
 352         canonicalize mem_chain elements that are not discarded.
 353
 354 2012-01-06  Jakub Jelinek  <jakub@redhat.com>
 355
 356         PR target/47333
 357         * cgraphunit.c (cgraph_optimize): Call output_weakrefs
 358         before emitting functions.
 359
 360         PR gcov-profile/50127
 361         * bb-reorder.c (partition_hot_cold_basic_blocks): Call
 362         clear_aux_for_blocks.
 363
 364 2012-01-06  Alexandre Oliva  <aoliva@redhat.com>
 365
 366         PR debug/51746
 367         * cselib.c (cselib_hash_rtx): Hash incoming VALUEs too.
 368
 369 2012-01-06  Arnaud Charlet  <charlet@adacore.com>
 370
 371         * c-decl.c (ext_block): Moved up.
 372         (collect_all_refs, for_each_global_decl): Take ext_block into account.
 373
 374 2012-01-06  Han Shen  <shenhan@google.com>
 375
 376         Translate built-in include paths for sysroot.
 377         * Makefile.in (gcc_gxx_include_dir_add_sysroot): New.
 378         (PREPROCESSOR_DEFINES): Define GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT.
 379
 380         * cppdefault.c (cpp_include_defaults): Replace hard coded "0" with
 381         GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT for "add_sysroot" field.
 382
 383         * configure.ac (AC_SUBST): Add gcc_gxx_include_dir_add_sysroot to
 384         control whether sysroot should be prepended to gxx include dir.
 385
 386         * configure: Regenerate.
 387
 388 2012-01-06  Torvald Riegel  <triegel@redhat.com>
 389
 390         PR rtl-optimization/51771
 391         * builtin-attrs.def (ATTR_RETURNS_TWICE, ATTR_TM_NOTHROW_RT_LIST): New.
 392         * gtm-builtins.def (BUILT_IN_TM_START): Add returns-twice attrib.
 393
 394 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
 395
 396         PR tree-optimization/51315
 397         * tree-sra.c (tree_non_aligned_mem_for_access_p): New predicate.
 398         (build_accesses_from_assign): Use it instead of tree_non_aligned_mem_p.
 399
 400 2012-01-05  Uros Bizjak  <ubizjak@gmail.com>
 401
 402         PR target/51681
 403         * config/ia64/ia64.c (expand_vec_perm_shrp): Use correct operands
 404         for shrp pattern.  Correctly handle and fixup shift variable.
 405         Return false when shift > nelt for BYTES_BIG_ENDIAN target.
 406
 407 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
 408
 409         PR debug/51762
 410         * calls.c (emit_call_1): For noreturn calls force a REG_ARGS_SIZE
 411         note when !ACCUMULATE_OUTGOING_ARGS.
 412
 413 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
 414
 415         * tree-vrp.c (extract_range_from_binary_expr_1): Remove duplicated
 416         condition.
 417         (extract_range_from_unary_expr_1): Avoid useless computations.
 418
 419 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
 420
 421         PR rtl-optimization/51767
 422         * cfgrtl.c (force_nonfallthru_and_redirect): Force addition
 423         of jump_block and add an extra edge for degenerated asm gotos.
 424
 425         PR middle-end/51768
 426         * stmt.c (check_unique_operand_names): Don't ICE during error
 427         reporting if i is from labels chain.
 428
 429         PR middle-end/44777
 430         * profile.c (branch_prob): Split bbs that have exit edge
 431         and need a fake entry edge too.
 432
 433 2012-01-05  Jan Hubicka  <jh@suse.cz>
 434
 435         PR middle-end/49710
 436         * cfgloopmanip.c (remove_path): Walk loop hiearchy upwards when
 437         unlooping loops.
 438
 439 2012-01-05  Richard Guenther  <rguenther@suse.de>
 440
 441         PR lto/50490
 442         * tree-streamer-out.c (write_ts_optimization): New function.
 443         (streamer_write_tree_body): Call it.
 444         * tree-streamer-in.c (lto_input_ts_optimization): New function.
 445         (streamer_read_tree_body): Call it.
 446         * lto-streamer-out.c (lto_is_streamable): Handle OPTIMIZATION_NODE.
 447
 448 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
 449
 450         PR middle-end/51761
 451         * gimple.h (struct gimplify_ctx): Add in_cleanup_point_expr field.
 452         * gimplify.c (gimplify_cleanup_point_expr): Save and set
 453         in_cleanup_point_expr before gimplify_stmt call and restore it
 454         afterwards.
 455         (gimplify_target_expr): Don't add {CLOBBER} cleanup if
 456         in_cleanup_point_expr is false.
 457
 458 2012-01-05  Richard Guenther  <rguenther@suse.de>
 459
 460         PR middle-end/51764
 461         * common.opt (Wmudflap, fmudflap, fmudflapth, fmudflapir): Move
 462         to c.opt.
 463         * toplev.c (process_options): Reject combining mudflap and LTO.
 464         * tree-nomudflap.c (nogo): Use sorry instead of internal_error.
 465
 466 2012-01-05  Richard Guenther  <rguenther@suse.de>
 467
 468         PR tree-optimization/51760
 469         * tree-ssa-ccp.c (likely_value): Drop UNDEFINED to CONSTANT,
 470         not VARYING.
 471         (bit_value_unop): Handle UNDEFINED operands.
 472         (bit_value_binop): Likewise.
 473
 474 2012-01-05  Georg-Johann Lay  <avr@gjlay.de>
 475
 476         * config/avr/avr.c (avr_replace_prefix): Remove.
 477         (avr_asm_named_section): Use ACONCAT instead of avr_replace_prefix.
 478         (avr_asm_function_rodata_section): Ditto.
 479         (avr_asm_select_section): Ditto.
 480
 481 2012-01-05  Marcus Shawcroft  <marcus.shawcroft@arm.com>
 482
 483         * reload.c (find_reloads): Adjust LABEL_NUSES on REG_LABEL_OPERAND
 484         insertion.
 485
 486 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
 487
 488         PR bootstrap/51648
 489         * tree-cfg.c (need_fake_edge_p): Return true also for noreturn
 490         calls that have any non-fake successor edges.
 491
 492         PR debug/51746
 493         * var-tracking.c (add_stores): For COND_EXEC allow oval to be NULL.
 494
 495 2012-01-04  Eric Botcazou  <ebotcazou@adacore.com>
 496
 497         PR tree-optimization/51624
 498         * tree-sra.c (build_ref_for_model): When replicating a chain of
 499         COMPONENT_REFs, stop as soon as the offset would become negative.
 500
 501 2012-01-04  Jakub Jelinek  <jakub@redhat.com>
 502
 503         PR debug/51695
 504         * dwarf2out.c (output_loc_list): For now drop >= 64KB expressions
 505         in .debug_loc on the floor.
 506
 507 2012-01-04  Andrew Pinski  <apinski@cavium.com>
 508
 509         * doc/invoke.texi (-march=@var{arch}): Add octeon+ and octeon2.
 510
 511 2012-01-04  Andrew Pinski  <apinski@cavium.com>
 512             Adam Nemet  <anemet@caviumnetworks.com>
 513
 514         * config/mips/mips.md (size): Add SI and DI.
 515         (SIZE): New mode attribute.
 516         (U): New code attribute.
 517         * config/mips/mips-dsp.md (mips_lbux): Use gen_mips_lbux_extsi.
 518         (mips_lbux_<mode>): Delete.
 519         (mips_l<SHORT:size><u>x_ext<GPR:mode>_<P:mode>): New pattern.
 520         (mips_lhx): Use gen_mips_lhx_extsi.
 521         (mips_lhx_<mode>): Delete.
 522         (mips_lwx): Delete.
 523         (mips_l<size>x): New expand.
 524         (mips_lwx_<mode>): Delete.
 525         (mips_l<GPR:size>x_<P:mode>): New pattern.
 526         (*mips_lw<u>x_<P:mode>_ext): Likewise.
 527         * config/mips/mips-ftypes.def: Add DI f(POINTER, SI) function type.
 528         * config/mips/mips.c (mips_lx_address_p): New function.
 529         (mips_rtx_costs <case MEM>): Call mips_lx_address_p.
 530         (dsp64): New availability predicate.
 531         (mips_builtins): Add an entry for __builtin_mips_ldx.
 532         * config/mips/mips.h (ISA_HAS_LBX): New define.
 533         (ISA_HAS_LBUX): Likewise.
 534         (ISA_HAS_LHX): Likewise.
 535         (ISA_HAS_LHUX): Likewise.
 536         (ISA_HAS_LWX): Likewise.
 537         (ISA_HAS_LWUX): Likewise.
 538         (ISA_HAS_LDX): Likewise.
 539         * doc/extend.texi (__builtin_mips_ldx): Document.
 540
 541 2012-01-04  Tristan Gingold  <gingold@adacore.com>
 542
 543         * config/vms/xm-vms.h (HOST_LONG_FORMAT, HOST_PTR_PRINTF): Define
 544         when long pointers are used.
 545         * config.build (*-*-*vms*): Handle all OpenVMS targets.
 546         (alpha64-dec-*vms*, alpha*-dec-*vms*)
 547         (ia64-hp-*vms*): Remove.
 548         * config/vms/xm-vms64.h: Delete.
 549
 550 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
 551
 552         PR middle-end/51472
 553         * trans-mem.c (expand_assign_tm): Handle TM_MEMMOVE loads correctly.
 554
 555 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
 556
 557         * opts.c (finish_options): Remove duplicate sorry.
 558
 559 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
 560
 561         PR middle-end/51696
 562         * trans-mem.c (diagnose_tm_1): Display indirect calls with no name
 563         correctly.
 564
 565 2012-01-04  Richard Guenther  <rguenther@suse.de>
 566
 567         PR middle-end/51750
 568         * tree.c (size_low_cst): New function.
 569         * tree.h (size_low_cst): Declare.
 570         * fold-const.c (fold_comparison): Use it to extract the low
 571         part of the POINTER_PLUS_EXPR offset.
 572
 573 2012-01-04  Georg-Johann Lay  <avr@gjlay.de>
 574
 575         Fix clearing ZERO_REG
 576         * config/avr/avr.md (cc): Add alternative "ldi".
 577         (movqi_insn): Use it in cc attribute.
 578         * config/avr/avr.c (notice_update_cc): Handle CC_LDI.
 579         (output_reload_in_const): Use CLR to move 0 to ZERO_REG.
 580         (output_reload_insisf): Use ZERO_REG to pre-clear register.
 581
 582 2012-01-04  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 583
 584         * configure: Regenerate.
 585
 586 2012-01-04  Richard Guenther  <rguenther@suse.de>
 587
 588         PR tree-optimization/49651
 589         * tree-ssa-structalias.c (type_can_have_subvars): New function.
 590         (var_can_have_subvars): Use it.
 591         (get_constraint_for_1): Only consider subfields if there can be any.
 592
 593 2012-01-03  Jakub Jelinek  <jakub@redhat.com>
 594
 595         PR bootstrap/51725
 596         * cselib.c (new_elt_loc_list): When moving locs from one cselib_val
 597         to its new canonical_cselib_val and the cselib_val was in
 598         first_containing_mem chain, but the canonical_cselib_val was not,
 599         add the latter into the chain.
 600         (cselib_invalidate_mem): Compare canonical_cselib_val of
 601         addr_list chain elt with v.
 602
 603         PR pch/51722
 604         * dwarf2out.c (dwarf2out_start_source_file, dwarf2out_define,
 605         dwarf2out_undef): Allocate e.info using ggc_strdup instead
 606         of xstrdup.
 607         (output_macinfo_op): Don't ggc_strdup fd->filename.
 608         (optimize_macinfo_range): Allocate grp_name using XALLOCAVEC,
 609         then ggc_strdup it.  Don't free inc->info or cur->info.
 610         (output_macinfo): Don't free ref->info or file->info.
 611
 612 2012-01-03  Ira Rosen  <irar@il.ibm.com>
 613
 614         PR tree-optimization/51269
 615         * tree-vect-loop-manip.c (set_prologue_iterations): Make
 616         first_niters a pointer.
 617         (slpeel_tree_peel_loop_to_edge): Likewise.
 618         (vect_do_peeling_for_loop_bound): Update call to
 619         slpeel_tree_peel_loop_to_edge.
 620         (vect_gen_niters_for_prolog_loop): Don't compute wide_prolog_niters
 621         here.  Remove it from the parameters list.
 622         (vect_do_peeling_for_alignment): Update calls and compute
 623         wide_prolog_niters.
 624
 625 2012-01-03  Richard Guenther  <rguenther@suse.de>
 626
 627         PR tree-optimization/51070
 628         * tree-loop-distribution.c (stmt_has_scalar_dependences_outside_loop):
 629         Properly handle calls.
 630
 631 2012-01-03  Richard Guenther  <rguenther@suse.de>
 632
 633         PR tree-optimization/51692
 634         * tree-ssa-dce.c (eliminate_unnecessary_stmts): Do not remove
 635         the LHS of allocation stmts.
 636
 637 2012-01-03  Olivier Hainque  <hainque@adacore.com>
 638
 639         * system.h: Prior to #define, #undef fopen and freopen unconditionally.
 640
 641 2012-01-03  Olivier Hainque  <hainque@adacore.com>
 642
 643         * collect2.c (main): In AIX specific computations for vector
 644         insertions, use CONST_CAST2 to cast from char ** to const char **.
 645
 646 2012-01-03  Richard Guenther  <rguenther@suse.de>
 647
 648         PR debug/51650
 649         * dwarf2out.c (dwarf2out_finish): Always create a DIE for
 650         the context of a limbo DIE when it does not already exist.
 651
 652 2012-01-03  Jakub Jelinek  <jakub@redhat.com>
 653
 654         PR tree-optimization/51719
 655         * value-prof.c (gimple_ic): When indirect call isn't noreturn,
 656         but direct call is, clear direct call's lhs and don't add fallthrough
 657         edge from dcall_bb to join_bb and PHIs.
 658
 659 2012-01-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 660
 661         * config/s390/s390.md ("*cmp<mode>_ccs"): Fix comment mentioning
 662         the instructions emitted by the pattern.
 663         ("*TDC_insn_<mode>"): Add comment.
 664
 665 2012-01-03  Richard Guenther  <rguenther@suse.de>
 666
 667         PR middle-end/51730
 668         * fold-const.c (fold_comparison): Properly canonicalize
 669         tree offset and HOST_WIDE_INT bit position.
 670
 671 2012-01-02  Uros Bizjak  <ubizjak@gmail.com>
 672
 673         * config/ia64/ia64.c (expand_vec_perm_broadcast): Use correct
 674         operands for extzv pattern.
 675
 676 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
 677
 678         PR bootstrap/51725
 679         * cselib.c (add_mem_for_addr): Call canonical_cselib_val
 680         on mem_elt first.
 681
 682 2012-01-02  Sandra Loosemore  <sandra@codesourcery.com>
 683
 684         * doc/invoke.texi (-flto and related options): Copy-edit.
 685
 686 2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
 687
 688         * config/mips/mips.md (loadgp_newabi_<mode>): Add missing earlyclobber.
 689
 690 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
 691
 692         * config/i386/sse.md (*avx2_gatherdi<mode>_3, *avx2_gatherdi<mode>_4):
 693         New patterns.
 694
 695 2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
 696
 697         * expr.h (move_by_pieces_ninsns): Declare.
 698         * expr.c (move_by_pieces_ninsns): Make external.
 699         * config/mips/mips-protos.h (mips_move_by_pieces_p): Declare.
 700         (mips_store_by_pieces_p): Likewise.
 701         * config/mips/mips.h (MOVE_BY_PIECES_P): Call mips_move_by_pieces_p.
 702         (STORE_BY_PIECES_P): Likewise mips_store_by_pieces_p.
 703         * config/mips/mips.c (mips_move_by_pieces_p): New function.
 704         (mips_store_by_pieces_p): Likewise.
 705
 706 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
 707
 708         * passes.c (register_one_dump_file): Free full_name.
 709
 710         * reload1.c (reload): Don't allocate reg_max_ref_width here.
 711         (calculate_elim_costs_all_insns): Free offsets_at and
 712         offsets_known_at at the end and clear the pointers.
 713
 714 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
 715
 716         * config/avr/avr.opt (-mbranch-cost): Fix double definition of
 717         this option introduced in r180739.
 718
 719 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
 720
 721         PR target/51345
 722         * config.gcc (tm_file target=avr]): Add avr/avr-multilib.h
 723         (tmake_file target=avr): Add avr/t-multilib.
 724
 725         * config/avr/avr-c.c (avr_cpu_cpp_builtins): Use AVR_HAVE_8BIT_SP
 726         to built-in define __AVR_HAVE_8BIT_SP__, __AVR_HAVE_16BIT_SP__.
 727         * config/avr/genmultilib.awk: New file.
 728         * config/avr/t-multilib: New auto-generated file.
 729         * config/avr/multilib.h: New auto-generated file.
 730         * config/avr/t-avr (AVR_MCUS): New variable.
 731         (genopt.sh): Use it.
 732         (s-mlib): Depend on t-multilib.
 733         (t-multilib, multilib.h): New dependencies.
 734         (s-avr-mlib): New rule to build t-multilib, multilib.h from AVR_MCUS.
 735         (MULTILIB_OPTIONS): Remove.
 736         (MULTILIB_MATCHES): Remove.
 737         (MULTILIB_DIRNAMES): Remove.
 738         (MULTILIB_EXCEPTIONS): Remove:
 739         * config/avr/genopt.sh: Don't use hard coded file name;
 740         pass AVR_MCUS from t-avr instead.
 741
 742 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
 743
 744         * config/avr/avr.c (avr_out_ashrpsi3): Fix "case 31" to "case 23".
 745
 746 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
 747
 748         Implement light-weight DImode support.
 749         * config/avr/avr-dimode.md: New file.
 750         * config/avr/avr.md: Include it.
 751         (adjust_len): Add plus64, compare64.
 752         (HIDI): Remove code iterator.
 753         (code_stdname): New code attribute.
 754         (rotx, rotsmode): Remove DI.
 755         (rotl<mode>3, *rotw<mode>, *rotb<mode>): Use HISI instead of HIDI
 756         as code iterator.
 757         * config/avr/avr-protos.h (avr_have_dimode): New.
 758         (avr_out_plus64, avr_out_compare64): New.
 759         * config/avr/avr.c (avr_out_compare): Handle DImode.
 760         (avr_have_dimode): New variable definition and initialization.
 761         (avr_out_compare64, avr_out_plus64): New functions.
 762         (avr_out_plus_1): Use simplify_unary_operation to negate xval.
 763         (adjust_insn_length): Handle ADJUST_LEN_COMPARE64, ADJUST_LEN_PLUS64.
 764         (avr_compare_pattern): Skip DImode comparisons.
 765
 766 2012-01-02  Revital Eres  <revital.eres@linaro.org>
 767
 768         * ddg.c (def_has_ccmode_p): New function.
 769         (add_cross_iteration_register_deps,
 770         create_ddg_dep_from_intra_loop_link): Call it.
 771
 772 2012-01-02  Richard Guenther  <rguenther@suse.de>
 773
 774         PR other/51679
 775         * invoke.texi (fassociative-math): Remove spurious paranthesis.
 776
 777 2012-01-01  Jakub Jelinek  <jakub@redhat.com>
 778
 779         * gcc.c (process_command): Update copyright notice dates.
 780         * gcov.c (print_version): Likewise.
 781         * gcov-dump.c (print_version): Likewise.
 782         * mips-tfile.c (main): Likewise.
 783         * mips-tdump.c (main): Likewise.
 784
 785 2012-01-01  Ira Rosen  <irar@il.ibm.com>
 786
 787         PR tree-optimization/51704
 788         * tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Check that
 789         a use is inside the basic block or loop before accessing its vect info.
 790
 791 2012-01-01  Jan Hubicka  <jhjh@suse.cz>
 792
 793         PR rtl-optimization/51069
 794         * cfgloopmanip.c (remove_path): Removing path making irreducible
 795         region unconditional makes BB part of the region.
 796
 797 2012-01-01  Jakub Jelinek  <jakub@redhat.com>
 798
 799         PR tree-optimization/51683
 800         * tree-ssa-propagate.c (substitute_and_fold): Don't optimize away
 801         calls with side-effects.
 802         * tree-ssa-ccp.c (ccp_fold_stmt): Likewise.
 803 \f
 804 Copyright (C) 2012 Free Software Foundation, Inc.
 805
 806 Copying and distribution of this file, with or without modification,
 807 are permitted in any medium without royalty provided the copyright
 808 notice and this notice are preserved.