gcc/ChangeLog

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