gcc/ChangeLog

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