gcc/ChangeLog

   1 2012-01-15  Richard Sandiford  <rdsandiford@googlemail.com>
   2
   3         * config/mips/mips.c (mips16_build_call_stub): Don't use a stub
   4         for calls to locally-binding MIPS16 functions if only the return
   5         type uses float regs.
   6
   7 2012-01-15  Chung-Lin Tang  <cltang@codesourcery.com>
   8             Richard Sandiford  <rdsandiford@googlemail.com>
   9
  10         * config/mips/mips-protos.h (SYMBOL_FORCE_TO_MEM): Delete.
  11         (SYMBOL_32_HIGH): Likewise.
  12         (mips_output_tls_reloc_directive): Declare.
  13         * config/mips/mips.h (PIC_FUNCTION_ADDR_REGNUM): Move to mips.md.
  14         (mips_use_pcrel_pool_p, mips_lo_relocs, mips_hi_relocs): Declare.
  15         * config/mips/mips.c (mips_use_pcrel_pool_p): New variable.
  16         (mips_lo_relocs, mips_hi_relocs): Make extern.
  17         (mips16_stub_function): Move up file.
  18         (mips_classify_symbol): Remove SYMBOL_FORCE_TO_MEM handling.
  19         (mips_symbolic_constant_p): Likewise.  Remove SYMBOL_32_HIGH too.
  20         (mips_symbol_insns_1): Likewise.  Check mips_use_pcrel_pool_p.
  21         (mips_cannot_force_const_mem): Use mips_use_pcrel_pool_p instead
  22         of SYMBOL_FORCE_TO_MEM.  Only check mips_tls_symbol_ref_1
  23         if it's false.
  24         (mips_get_tp): Add MIPS16 support.
  25         (mips_legitimize_tls_address): Remove MIPS16 sorry().
  26         Generalize DTPREL and TPREL handling.
  27         (mips_init_relocs): Initialize mips_use_pcrel_pool_p.
  28         Add MIPS16 TLS support.
  29         (mips_output_tls_reloc_directive): New function.
  30         (mips16_rewrite_pool_refs): Ignore UNSPEC_TLS_GET_TPs.
  31         * config/mips/predicates.md (symbolic_operand_with_high)
  32         (tls_reloc_operand): New predicates.
  33         (force_to_mem_operand): Use mips_use_pcrel_pool_p.
  34         * config/mips/mips.md (UNSPEC_UNSHIFTED_HIGH): New unspec.
  35         (PIC_FUNCTION_ADDR_REGNUM): Moved from mips.h.
  36         (*unshifted_high): New instruction.  Use it for MIPS16
  37         high splitter.
  38         (consttable_tls_reloc, tls_get_tp_mips16_<mode>): New patterns.
  39         (*tls_get_tp_mips16_call_<mode>): Likewise.
  40
  41 2012-01-15  Uros Bizjak  <ubizjak@gmail.com>
  42
  43         PR rtl-optimization/51821
  44         * recog.c (peep2_find_free_register): Determine clobbered registers
  45         from insn pattern.
  46
  47 2012-01-14  Denis Chertykov  <chertykov@gmail.com>
  48
  49         PR target/50925
  50         * config/avr/avr-protos.h: Revert change of 2012-01-09.
  51         * config/avr/avr.c: Likewise.
  52         * config/avr/avr.h: Likewise.
  53
  54 2012-01-13  Ian Lance Taylor  <iant@google.com>
  55
  56         PR c++/50012
  57         * tree.h (TYPE_QUALS): Add cast to int.
  58         (TYPE_QUALS_NO_ADDR_SPACE): Likewise.
  59
  60 2012-01-13  Ian Lance Taylor  <iant@google.com>
  61
  62         * ipa-cp.c (ipa_get_indirect_edge_target): Add typecasts when
  63         comparing param_index to VEC_length result.
  64
  65 2012-01-13  Steven Bosscher  <steven@gcc.gnu.org>
  66
  67         * c-decl.c: Do not include tree-mudflap.h
  68         * tree-optimize.c: Likewise.
  69         * Makefile.in: Update dependencies.
  70
  71 2012-01-13  Richard Guenther  <rguenther@suse.de>
  72
  73         PR middle-end/8081
  74         * gimplify.c (gimplify_modify_expr_rhs): For calls with a
  75         variable-sized result always use RSO.
  76
  77 2012-01-12  DJ Delorie  <dj@redhat.com>
  78
  79         * cfgexpand.c (convert_debug_memory_address): Allow any valid
  80         pointer type, not just the default pointer type.
  81
  82 2012-01-09  Richard Henderson  <rth@redhat.com>
  83             Denis Chertykov  <chertykov@gmail.com>
  84
  85         PR target/50925
  86         * config/avr/avr-protos.h (avr_hard_regno_nregs): Declare.
  87         * config/avr/avr.c (avr_can_eliminate): Simplify.
  88         (avr_initial_elimination_offset): Likewise.
  89         (avr_prologue_setup_frame): Use hard_frame_pointer_rtx.
  90         (expand_epilogue): Likewise.
  91         (avr_legitimize_address): Gut.
  92         (avr_legitimize_reload_address): Use hard_frame_pointer_rtx.
  93         (avr_hard_regno_nregs): New.
  94         (avr_hard_regno_ok): Allow only Pmode for arg and frame_pointers.
  95         (avr_regno_mode_code_ok_for_base_b): Handle arg and frame pointers.
  96         * config/avr/avr.h (FIXED_REGISTERS): Adjust arg pointer,
  97         add soft frame pointer.
  98         (CALL_USED_REGISTERS): Likewise.
  99         (REG_CLASS_CONTENTS): Likewise.
 100         (REGISTER_NAMES): Likewise.
 101         (HARD_REGNO_NREGS): Use avr_hard_regno_nregs.
 102         (HARD_FRAME_POINTER_REGNUM): New.
 103         (FRAME_POINTER_REGNUM): Use soft frame pointer.
 104         (ELIMINABLE_REGS): Eliminate from the soft frame pointer,
 105         remove the HARD_FRAME_POINTER self-elimination.
 106
 107 2012-01-12  Georg-Johann Lay  <avr@gjlay.de>
 108
 109         PR target/51756
 110         * config/avr/avr.c (avr_encode_section_info): Test for absence of
 111         DECL_EXTERNAL when checking for initializers of progmem variables.
 112
 113 2012-01-12  Ira Rosen  <irar@il.ibm.com>
 114
 115         PR tree-optimization/51799
 116         * tree-vect-patterns.c (vect_recog_over_widening_pattern): Check
 117         that the last operation is a type demotion.
 118
 119 2012-01-12  Uros Bizjak  <ubizjak@gmail.com>
 120
 121         * config/i386/i386.md (*zero_extendsidi2_rex64): Correct movl template.
 122         (x86_shift<mode>_adj_1): Remove operand constraint from operand 3.
 123
 124 2012-01-11  Jakub Jelinek  <jakub@redhat.com>
 125
 126         PR bootstrap/51796
 127         * combine.c (distribute_notes): If i3 is a noreturn call,
 128         allow old_size to be equal to args_size and make sure the
 129         noreturn call gets REG_ARGS_SIZE note.
 130         * expr.c (fixup_args_size_notes): Put REG_ARGS_SIZE notes
 131         on noreturn calls even when the delta is 0.
 132
 133 2012-01-11  Nathan Sidwell  <nathan@acm.org>
 134
 135         * gcov.c (STRING_SIZE): Remove.
 136         (generate_results): Erase annotations for source files with no
 137         coverage information.
 138         (read_line): New.
 139         (output_lines): Use it.
 140
 141 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
 142
 143         * gimple.h (gimplify_body): Remove first argument.
 144         * gimplify.c (copy_if_shared): Add DATA argument.  Do not create the
 145         pointer set here, instead just pass DATA to walk_tree.
 146         (unshare_body): Remove BODY_P argument and adjust.  Create the pointer
 147         set here and invoke copy_if_shared on the size trees of DECL_RESULT.
 148         (unvisit_body): Likewise, but with unmark_visited.
 149         (gimplify_body): Remove BODY_P argument and adjust.
 150         (gimplify_function_tree): Adjust call to gimplify_body.
 151         * omp-low.c (finalize_task_copyfn): Likewise.
 152
 153 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
 154
 155         * tree.h (build_function_decl_skip_args): Add boolean parameter.
 156         (build_function_type_skip_args): Delete.
 157         * tree.c (build_function_type_skip_args): Make static and add
 158         SKIP_RETURN parameter.  Fix thinko in the handling of variants.
 159         (build_function_decl_skip_args): Add SKIP_RETURN parameter and
 160         pass it to build_function_type_skip_args.
 161         * cgraph.h (cgraph_function_versioning): Add boolean parameter.
 162         (tree_function_versioning): Likewise.
 163         * cgraph.c (cgraph_create_virtual_clone): Adjust call to
 164         build_function_decl_skip_args.
 165         * cgraphunit.c (cgraph_function_versioning): Add SKIP_RETURN parameter
 166         and pass it to build_function_decl_skip_args/tree_function_versioning.
 167         (cgraph_materialize_clone): Adjust call to tree_function_versioning.
 168         * ipa-inline-transform.c (save_inline_function_body): Likewise.
 169         * trans-mem.c (ipa_tm_create_version): Likewise.
 170         * tree-sra.c (modify_function): Ditto for cgraph_function_versioning.
 171         * tree-inline.c (declare_return_variable): Remove always-true test.
 172         (tree_function_versioning): Add SKIP_RETURN parameter.  If the function
 173         returns non-void and SKIP_RETURN, create a void-typed RESULT_DECL.
 174         * ipa-split.c (split_function): Skip the return value for the split
 175         part if it doesn't return.
 176
 177 2012-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
 178
 179         PR tree-optimization/49642
 180         * ipa-split.c (forbidden_dominators): New variable.
 181         (check_forbidden_calls): New function.
 182         (dominated_by_forbidden): Likewise.
 183         (consider_split): Check for forbidden dominators.
 184         (execute_split_functions): Initialize and free forbidden
 185         dominators info; call check_forbidden_calls.
 186
 187 2012-01-11  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
 188
 189         * config/arm/arm.md (mov_notscc): Use MVN for false condition.
 190
 191 2012-01-11  Nick Clifton  <nickc@redhat.com>
 192
 193         * config/rx/rx.md (return): Define pattern.
 194
 195 2012-01-11  Richard Guenther  <rguenther@suse.de>
 196
 197         * doc/extend.texi (malloc attribute): Adjust according to
 198         implementation.
 199
 200 2012-01-10  Aldy Hernandez  <aldyh@redhat.com>
 201             Patrick Marlier  <patrick.marlier@gmail.com>
 202
 203         PR middle-end/51516
 204         * trans-mem.c (get_cg_data): Traverse aliases if requested.
 205         (ipa_tm_scan_calls_block): Update parameters to get_cg_data.
 206         (ipa_tm_note_irrevocable): Same.
 207         (ipa_tm_scan_irr_block): Same.
 208         (ipa_tm_decrement_clone_counts): Same.
 209         (ipa_tm_scan_irr_function): Same.
 210         (ipa_tm_create_version_alias): Same.
 211         (ipa_tm_create_version): Same.
 212         (ipa_tm_transform_calls_redirect): Same.
 213         (ipa_tm_transform_calls): Same.
 214         (ipa_tm_transform_transaction): Same.
 215         (ipa_tm_execute): Same.
 216
 217 2012-01-10  Richard Guenther  <rguenther@suse.de>
 218
 219         PR middle-end/51806
 220         * opts.c (common_handle_option): Handle -Werror.
 221
 222 2012-01-10  Andreas Schwab  <schwab@linux-m68k.org>
 223
 224         * config/m68k/sync.md ("atomic_compare_and_swap<mode>_1"): Fix
 225         operand number.
 226
 227 2012-01-10  Jason Merrill  <jason@redhat.com>
 228
 229         * doc/invoke.texi (C++ Dialect Options): Update -fabi-version=6
 230         information.
 231
 232 2012-01-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 233
 234         * configure.ac (gcc_cv_as_ix86_tlsgdplt): Check if linker
 235         supports R_386_TLS_GD_PLT reloc.
 236         (gcc_cv_as_ix86_tlsldmplt): Check if linker
 237         supports R_386_TLS_LDM_PLT reloc.
 238         * configure: Regenerate.
 239         * config.in: Regenerate.
 240
 241 2012-01-10  Georg-Johann Lay  <avr@gjlay.de>
 242
 243         PR target/49868
 244         Extend __pgmx semantics to linearize memory.
 245         * config/avr/avr.md (mov<mode>): Use avr_xload_libgcc_p to
 246         determine if code comes inline or from libgcc.
 247         (MOVMEM_r_d:HI): Add "w" to constraint for better preference.
 248         (movmem_qi, movmem_qi): Set constraint #2 to "n".
 249         (movmem_qi_elpm, movmem_hi_elpm): Remove insns.
 250         (movmemx_qi, movmemx_hi): New insns.
 251         (xload_<mode>_libgcc): Rewrite to new insn condition.
 252         (xload_<mode>): Remove insns.
 253         * config/avr/avr.c (avr_out_xload): Rewrite: Only need to handle
 254         cases that don't satisfy avr_xload_libgcc_p().
 255         (avr_addr_space_convert): Allow converting in any direction.
 256         (avr_addr_space_subset_p): Return always true.
 257         (avr_xload_libgcc_p): Rewrite to fit new __pgmx semantics.
 258         (avr_emit_movmemhi): Ditto.
 259         (avr_out_lpm): No need to handle ADDR_SPACE_PGMX any more.
 260         (avr_out_movmem): Ditto.
 261         (AVR_SYMBOL_FLAG_PROGMEM): New macro.
 262         (AVR_SYMBOL_SET_ADDR_SPACE): New macro.
 263         (AVR_SYMBOL_GET_ADDR_SPACE): New macro.
 264         (avr_encode_section_info): Encode 'progmem' in symbol flags.
 265         (output_reload_in_const): Don't zero-extend any 24-bit symbols.
 266
 267 2012-01-10  Richard Guenther  <rguenther@suse.de>
 268
 269         PR tree-optimization/50913
 270         * graphite-scop-detection.c (stmt_has_simple_data_refs_p):
 271         Require data-refs to be representable by Graphite with respect
 272         to any loop nest.
 273
 274 2012-01-10  Uros Bizjak  <ubizjak@gmail.com>
 275
 276         * config/i386/constraints.md ("L"): Return true for 0xffffffff.
 277         * config/i386/i386.c (*anddi_1): Emit AND with 0xffffffff as MOV.
 278
 279 2012-01-10  Tom de Vries  <tom@codesourcery.com>
 280
 281         PR rtl-optimization/51271
 282         * dwarf2cfi.c (scan_trace): Save and restore cur_row->reg_save when
 283         handling annulled branch.
 284
 285 2012-01-10  Richard Henderson  <rth@redhat.com>
 286
 287         * config/arm/arm.c (arm_vectorize_vec_perm_const_ok,
 288         TARGET_VECTORIZE_VEC_PERM_CONST_OK, neon_split_vcombine, MAX_VECT_LEN,
 289         struct expand_vec_perm_d, arm_expand_vec_perm_1, arm_expand_vec_perm,
 290         arm_evpc_neon_vuzp, arm_evpc_neon_vzip, arm_evpc_neon_vrev,
 291         arm_evpc_neon_vtrn, arm_evpc_neon_vtbl, arm_expand_vec_perm_const_1,
 292         arm_expand_vec_perm_const): New.
 293         * config/arm/arm-protos.h: Update.
 294         * config/arm/neon.md (UNSPEC_VCONCAT): New.
 295         (*neon_vswp<VDQX>): New.
 296         (neon_vcombine<VDX>): Use neon_split_vcombine.
 297         (neon_vtbl1v16qi, neon_vtbl2v16qi, neon_vcombinev16qi): New.
 298         * config/arm/vec-common.md (vec_perm_const<VALL>): New.
 299         (vec_perm<VE>): New.
 300
 301 2012-01-10  Richard Henderson  <rth@redhat.com>
 302
 303         * config/arm/arm.c (arm_gen_compare_reg): Add scratch argument;
 304         use it if reload_completed.
 305         (arm_legitimize_sync_memory, arm_emit, arm_insn_count, arm_count,
 306         arm_output_asm_insn, arm_process_output_memory_barrier,
 307         arm_output_memory_barrier, arm_ldrex_suffix, arm_output_ldrex,
 308         arm_output_strex, arm_output_it, arm_output_op2, arm_output_op3,
 309         arm_output_sync_loop, arm_get_sync_operand, FETCH_SYNC_OPERAND,
 310         arm_process_output_sync_insn, arm_output_sync_insn,
 311         arm_sync_loop_insns, arm_call_generator, arm_expand_sync): Remove.
 312         (arm_pre_atomic_barrier, arm_post_atomic_barrier): New.
 313         (arm_emit_load_exclusive, arm_emit_store_exclusive): New.
 314         (emit_unlikely_jump): New.
 315         (arm_expand_compare_and_swap, arm_split_compare_and_swap): New.
 316         (arm_split_atomic_op): New.
 317         * config/arm/arm-protos.h: Update.
 318         * config/arm/arm.h (enum arm_sync_generator_tag): Remove.
 319         (struct arm_sync_generator): Remove.
 320         * config/arm/arm.md (VUNSPEC_SYNC_COMPARE_AND_SWAP, VUNSPEC_SYNC_LOCK,
 321         VUNSPEC_SYNC_OP, VUNSPEC_SYNC_NEW_OP, VUNSPEC_SYNC_OLD_OP): Remove.
 322         (VUNSPEC_ATOMIC_CAS, VUNSPEC_ATOMIC_XCHG, VUNSPEC_ATOMIC_OP): New.
 323         (VUNSPEC_LL, VUNSPEC_SC): New.
 324         (sync_result, sync_memory, sync_required_value, sync_new_value,
 325         sync_t1, sync_t2, sync_release_barrier, sync_op): Remove.
 326         (attr length): Don't use arm_sync_loop_insns.
 327         (cbranch_cc, cstore_cc): Update call to arm_gen_compare_reg.
 328         (movsfcc, movdfcc): Likewise.
 329         * config/arm/constraints.md (Ua): New.
 330         * config/arm/prediates.md (mem_noofs_operand): New.
 331         (sync_compare_and_swap<QHSD>, sync_lock_test_and_set<QHSD>): Remove.
 332         (sync_clobber, sync_t2_reqd): Remove.
 333         (sync_<syncop><QHSD>, sync_nand<QHSD>): Remove.
 334         (sync_new_<syncop><QHSD>, sync_new_nand<QHSD>): Remove.
 335         (sync_old_<syncop><QHSD>, sync_old_nand<QHSD>): Remove.
 336         (arm_sync_compare_and_swap<SIDI>): Remove.
 337         (arm_sync_compare_and_swap<NARROW>): Remove.
 338         (arm_sync_lock_test_and_set<SIDI>): Remove.
 339         (arm_sync_lock_test_and_set<NARROW>): Remove.
 340         (arm_sync_new_<syncop><SIDI>): Remove.
 341         (arm_sync_new_<syncop><NARROW>): Remove.
 342         (arm_sync_new_nand<SIDI>): Remove.
 343         (arm_sync_new_nand<NARROW>): Remove.
 344         (arm_sync_old_<syncop><SIDI>): Remove.
 345         (arm_sync_old_<syncop><NARROW>): Remove.
 346         (arm_sync_old_nand<SIDI>): Remove.
 347         (arm_sync_old_nand<NARROW>): Remove.
 348         (*memory_barrier): Merge arm_output_memory_barrier.
 349         (atomic_compare_and_swap<QHSD>): New.
 350         (atomic_compare_and_swap<NARROW>_1): New.
 351         (atomic_compare_and_swap<SIDI>_1): New.
 352         (atomic_exchange<QHSD>): New.
 353         (cas_cmp_operand, cas_cmp_str): New.
 354         (atomic_op_operand, atomic_op_str): New.
 355         (atomic_<syncop><QHSD>, atomic_nand<QHSD>): New.
 356         (atomic_fetch_<syncop><QHSD>, atomic_fetch_nand<QHSD>): New.
 357         (atomic_<syncop>_fetch<QHSD>, atomic_nand_fetch<QHSD>): New.
 358         (arm_load_exclusive<NARROW>): New.
 359         (arm_load_exclusivesi, arm_load_exclusivedi): New.
 360         (arm_store_exclusive<QHSD>): New.
 361
 362 2012-01-09  Michael Meissner  <meissner@linux.vnet.ibm.com>
 363
 364         * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Add DF
 365         reload patterns if -mvsx-scalar-memory.
 366
 367         * config/rs6000/vsx.md (vsx_xscvspdp): Allow xscvspdp to be
 368         generated, even -mno-vsx-scalar-double was used.
 369         (vsx_xscvdpsp_scalar): Likewise.
 370         (vsx_xscvspdp_scalar2): Likewise.
 371
 372 2012-01-09  Tom de Vries  <tom@codesourcery.com>
 373             Andrew Pinski  <apinski@cavium.com>
 374
 375         PR debug/51471
 376         * reorg.c (fill_slots_from_thread): Don't speculate
 377         frame-related insns.
 378
 379 2012-01-09  Richard Sandiford  <rdsandiford@googlemail.com>
 380
 381         * sched-int.h (bb_note): Move to...
 382         * basic-block.h: ...here.
 383         * haifa-sched.c (bb_note): Move to...
 384         * cfgrtl.c: ...here.
 385         * function.c (next_block_for_reg): New function.
 386         (move_insn_for_shrink_wrap): Likewise.
 387         (prepare_shrink_wrap): Rewrite to use the above.
 388
 389 2012-01-09  Aldy Hernandez  <aldyh@redhat.com>
 390
 391         * gimple.c (is_gimple_non_addressable): Remove.
 392         * gimple.h: Remove is_gimple_non_addressable.
 393         * gimplify.c (gimplify_modify_expr_rhs): Use is_gimple_reg instead of
 394         is_gimple_non_addressable.
 395         * trans-mem.c (expand_assign_tm): Same.
 396
 397 2012-01-09  Richard Guenther  <rguenther@suse.de>
 398
 399         PR tree-optimization/51775
 400         * tree-ssa-sccvn.c (visit_use): Value-number throwing stmts.
 401         * tree-ssa-pre.c (eliminate): Properly fixup EH info.
 402
 403 2012-01-09  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
 404
 405         * config/arm/arm-cores.def (cortex-a15): Use cortex_a15_tune for
 406         tuning parameters.
 407         * config/arm/arm.c (arm_cortex_a15_tune): New static variable.
 408
 409 2012-01-09  Richard Guenther  <rguenther@suse.de>
 410
 411         * tree-streamer-out.c (write_ts_optimization): Fix spelling.
 412
 413 2012-01-08  Jan Hubicka  <jh@suse.cz>
 414
 415         PR tree-optimize/51680
 416         * ipa-inline-analyss.c (evaluate_properties_for_edge): Fix condition
 417         on when known_vals needs to be computed; cleanup.
 418
 419 2012-01-08  Jan Hubicka  <jh@suse.cz>
 420
 421         PR tree-optimize/51694
 422         * ipa-cp.c (ipa_get_indirect_edge_target): Add bounds checks.
 423
 424 2012-01-08  Jonathan Wakely  <jwakely.gcc@gmail.com>
 425
 426         * doc/cpp.texi (Predefined Macros): __STRICT_ANSI__ is defined
 427         for -std=c++98 and -std=c++11 too.
 428
 429 2012-01-08  Chung-Lin Tang  <cltang@codesourcery.com>
 430
 431         * cfgloop.c (cancel_loop): Add free() of bbs array.
 432
 433 2012-01-07  Jan Hubicka  <jh@suse.cz>
 434
 435         PR tree-optimization/51600
 436         * ipa-inline-analysis.c (estimate_edge_devirt_benefit): Disable code
 437         that benefits small functions.
 438
 439 2012-01-07  Jan Hubicka  <jh@suse.cz>
 440
 441         * ipa-inline.c (want_inline_small_function_p): Fix formating.
 442
 443 2012-01-07  Jan Hubicka  <jh@suse.cz>
 444
 445         PR tree-optimization/51680
 446         * ipa-inline.c (want_inline_small_function_p): Be more lax on functions
 447         whose inlining reduce unit size.
 448
 449 2012-01-07  Alexandre Oliva  <aoliva@redhat.com>
 450
 451         PR bootstrap/51725
 452         * cselib.c (new_elt_loc_list): Promote addr_list to canonical node.
 453         Add canonical node to containing_mem chain after the non-canonical
 454         one, even if there weren't any locs to propagate.
 455         (remove_useless_values): Keep only canonical values.
 456         (add_mem_for_addr, cselib_lookup_mem): Canonicalize addr.
 457         (cselib_invalidate_mem): Likewise.  Ensure v is canonical, and
 458         canonicalize mem_chain elements that are not discarded.
 459
 460 2012-01-06  Jakub Jelinek  <jakub@redhat.com>
 461
 462         PR target/47333
 463         * cgraphunit.c (cgraph_optimize): Call output_weakrefs
 464         before emitting functions.
 465
 466         PR gcov-profile/50127
 467         * bb-reorder.c (partition_hot_cold_basic_blocks): Call
 468         clear_aux_for_blocks.
 469
 470 2012-01-06  Alexandre Oliva  <aoliva@redhat.com>
 471
 472         PR debug/51746
 473         * cselib.c (cselib_hash_rtx): Hash incoming VALUEs too.
 474
 475 2012-01-06  Arnaud Charlet  <charlet@adacore.com>
 476
 477         * c-decl.c (ext_block): Moved up.
 478         (collect_all_refs, for_each_global_decl): Take ext_block into account.
 479
 480 2012-01-06  Han Shen  <shenhan@google.com>
 481
 482         Translate built-in include paths for sysroot.
 483         * Makefile.in (gcc_gxx_include_dir_add_sysroot): New.
 484         (PREPROCESSOR_DEFINES): Define GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT.
 485
 486         * cppdefault.c (cpp_include_defaults): Replace hard coded "0" with
 487         GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT for "add_sysroot" field.
 488
 489         * configure.ac (AC_SUBST): Add gcc_gxx_include_dir_add_sysroot to
 490         control whether sysroot should be prepended to gxx include dir.
 491
 492         * configure: Regenerate.
 493
 494 2012-01-06  Torvald Riegel  <triegel@redhat.com>
 495
 496         PR rtl-optimization/51771
 497         * builtin-attrs.def (ATTR_RETURNS_TWICE, ATTR_TM_NOTHROW_RT_LIST): New.
 498         * gtm-builtins.def (BUILT_IN_TM_START): Add returns-twice attrib.
 499
 500 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
 501
 502         PR tree-optimization/51315
 503         * tree-sra.c (tree_non_aligned_mem_for_access_p): New predicate.
 504         (build_accesses_from_assign): Use it instead of tree_non_aligned_mem_p.
 505
 506 2012-01-05  Uros Bizjak  <ubizjak@gmail.com>
 507
 508         PR target/51681
 509         * config/ia64/ia64.c (expand_vec_perm_shrp): Use correct operands
 510         for shrp pattern.  Correctly handle and fixup shift variable.
 511         Return false when shift > nelt for BYTES_BIG_ENDIAN target.
 512
 513 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
 514
 515         PR debug/51762
 516         * calls.c (emit_call_1): For noreturn calls force a REG_ARGS_SIZE
 517         note when !ACCUMULATE_OUTGOING_ARGS.
 518
 519 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
 520
 521         * tree-vrp.c (extract_range_from_binary_expr_1): Remove duplicated
 522         condition.
 523         (extract_range_from_unary_expr_1): Avoid useless computations.
 524
 525 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
 526
 527         PR rtl-optimization/51767
 528         * cfgrtl.c (force_nonfallthru_and_redirect): Force addition
 529         of jump_block and add an extra edge for degenerated asm gotos.
 530
 531         PR middle-end/51768
 532         * stmt.c (check_unique_operand_names): Don't ICE during error
 533         reporting if i is from labels chain.
 534
 535         PR middle-end/44777
 536         * profile.c (branch_prob): Split bbs that have exit edge
 537         and need a fake entry edge too.
 538
 539 2012-01-05  Jan Hubicka  <jh@suse.cz>
 540
 541         PR middle-end/49710
 542         * cfgloopmanip.c (remove_path): Walk loop hiearchy upwards when
 543         unlooping loops.
 544
 545 2012-01-05  Richard Guenther  <rguenther@suse.de>
 546
 547         PR lto/50490
 548         * tree-streamer-out.c (write_ts_optimization): New function.
 549         (streamer_write_tree_body): Call it.
 550         * tree-streamer-in.c (lto_input_ts_optimization): New function.
 551         (streamer_read_tree_body): Call it.
 552         * lto-streamer-out.c (lto_is_streamable): Handle OPTIMIZATION_NODE.
 553
 554 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
 555
 556         PR middle-end/51761
 557         * gimple.h (struct gimplify_ctx): Add in_cleanup_point_expr field.
 558         * gimplify.c (gimplify_cleanup_point_expr): Save and set
 559         in_cleanup_point_expr before gimplify_stmt call and restore it
 560         afterwards.
 561         (gimplify_target_expr): Don't add {CLOBBER} cleanup if
 562         in_cleanup_point_expr is false.
 563
 564 2012-01-05  Richard Guenther  <rguenther@suse.de>
 565
 566         PR middle-end/51764
 567         * common.opt (Wmudflap, fmudflap, fmudflapth, fmudflapir): Move
 568         to c.opt.
 569         * toplev.c (process_options): Reject combining mudflap and LTO.
 570         * tree-nomudflap.c (nogo): Use sorry instead of internal_error.
 571
 572 2012-01-05  Richard Guenther  <rguenther@suse.de>
 573
 574         PR tree-optimization/51760
 575         * tree-ssa-ccp.c (likely_value): Drop UNDEFINED to CONSTANT,
 576         not VARYING.
 577         (bit_value_unop): Handle UNDEFINED operands.
 578         (bit_value_binop): Likewise.
 579
 580 2012-01-05  Georg-Johann Lay  <avr@gjlay.de>
 581
 582         * config/avr/avr.c (avr_replace_prefix): Remove.
 583         (avr_asm_named_section): Use ACONCAT instead of avr_replace_prefix.
 584         (avr_asm_function_rodata_section): Ditto.
 585         (avr_asm_select_section): Ditto.
 586
 587 2012-01-05  Marcus Shawcroft  <marcus.shawcroft@arm.com>
 588
 589         * reload.c (find_reloads): Adjust LABEL_NUSES on REG_LABEL_OPERAND
 590         insertion.
 591
 592 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
 593
 594         PR bootstrap/51648
 595         * tree-cfg.c (need_fake_edge_p): Return true also for noreturn
 596         calls that have any non-fake successor edges.
 597
 598         PR debug/51746
 599         * var-tracking.c (add_stores): For COND_EXEC allow oval to be NULL.
 600
 601 2012-01-04  Eric Botcazou  <ebotcazou@adacore.com>
 602
 603         PR tree-optimization/51624
 604         * tree-sra.c (build_ref_for_model): When replicating a chain of
 605         COMPONENT_REFs, stop as soon as the offset would become negative.
 606
 607 2012-01-04  Jakub Jelinek  <jakub@redhat.com>
 608
 609         PR debug/51695
 610         * dwarf2out.c (output_loc_list): For now drop >= 64KB expressions
 611         in .debug_loc on the floor.
 612
 613 2012-01-04  Andrew Pinski  <apinski@cavium.com>
 614
 615         * doc/invoke.texi (-march=@var{arch}): Add octeon+ and octeon2.
 616
 617 2012-01-04  Andrew Pinski  <apinski@cavium.com>
 618             Adam Nemet  <anemet@caviumnetworks.com>
 619
 620         * config/mips/mips.md (size): Add SI and DI.
 621         (SIZE): New mode attribute.
 622         (U): New code attribute.
 623         * config/mips/mips-dsp.md (mips_lbux): Use gen_mips_lbux_extsi.
 624         (mips_lbux_<mode>): Delete.
 625         (mips_l<SHORT:size><u>x_ext<GPR:mode>_<P:mode>): New pattern.
 626         (mips_lhx): Use gen_mips_lhx_extsi.
 627         (mips_lhx_<mode>): Delete.
 628         (mips_lwx): Delete.
 629         (mips_l<size>x): New expand.
 630         (mips_lwx_<mode>): Delete.
 631         (mips_l<GPR:size>x_<P:mode>): New pattern.
 632         (*mips_lw<u>x_<P:mode>_ext): Likewise.
 633         * config/mips/mips-ftypes.def: Add DI f(POINTER, SI) function type.
 634         * config/mips/mips.c (mips_lx_address_p): New function.
 635         (mips_rtx_costs <case MEM>): Call mips_lx_address_p.
 636         (dsp64): New availability predicate.
 637         (mips_builtins): Add an entry for __builtin_mips_ldx.
 638         * config/mips/mips.h (ISA_HAS_LBX): New define.
 639         (ISA_HAS_LBUX): Likewise.
 640         (ISA_HAS_LHX): Likewise.
 641         (ISA_HAS_LHUX): Likewise.
 642         (ISA_HAS_LWX): Likewise.
 643         (ISA_HAS_LWUX): Likewise.
 644         (ISA_HAS_LDX): Likewise.
 645         * doc/extend.texi (__builtin_mips_ldx): Document.
 646
 647 2012-01-04  Tristan Gingold  <gingold@adacore.com>
 648
 649         * config/vms/xm-vms.h (HOST_LONG_FORMAT, HOST_PTR_PRINTF): Define
 650         when long pointers are used.
 651         * config.build (*-*-*vms*): Handle all OpenVMS targets.
 652         (alpha64-dec-*vms*, alpha*-dec-*vms*)
 653         (ia64-hp-*vms*): Remove.
 654         * config/vms/xm-vms64.h: Delete.
 655
 656 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
 657
 658         PR middle-end/51472
 659         * trans-mem.c (expand_assign_tm): Handle TM_MEMMOVE loads correctly.
 660
 661 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
 662
 663         * opts.c (finish_options): Remove duplicate sorry.
 664
 665 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
 666
 667         PR middle-end/51696
 668         * trans-mem.c (diagnose_tm_1): Display indirect calls with no name
 669         correctly.
 670
 671 2012-01-04  Richard Guenther  <rguenther@suse.de>
 672
 673         PR middle-end/51750
 674         * tree.c (size_low_cst): New function.
 675         * tree.h (size_low_cst): Declare.
 676         * fold-const.c (fold_comparison): Use it to extract the low
 677         part of the POINTER_PLUS_EXPR offset.
 678
 679 2012-01-04  Georg-Johann Lay  <avr@gjlay.de>
 680
 681         Fix clearing ZERO_REG
 682         * config/avr/avr.md (cc): Add alternative "ldi".
 683         (movqi_insn): Use it in cc attribute.
 684         * config/avr/avr.c (notice_update_cc): Handle CC_LDI.
 685         (output_reload_in_const): Use CLR to move 0 to ZERO_REG.
 686         (output_reload_insisf): Use ZERO_REG to pre-clear register.
 687
 688 2012-01-04  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 689
 690         * configure: Regenerate.
 691
 692 2012-01-04  Richard Guenther  <rguenther@suse.de>
 693
 694         PR tree-optimization/49651
 695         * tree-ssa-structalias.c (type_can_have_subvars): New function.
 696         (var_can_have_subvars): Use it.
 697         (get_constraint_for_1): Only consider subfields if there can be any.
 698
 699 2012-01-03  Jakub Jelinek  <jakub@redhat.com>
 700
 701         PR bootstrap/51725
 702         * cselib.c (new_elt_loc_list): When moving locs from one cselib_val
 703         to its new canonical_cselib_val and the cselib_val was in
 704         first_containing_mem chain, but the canonical_cselib_val was not,
 705         add the latter into the chain.
 706         (cselib_invalidate_mem): Compare canonical_cselib_val of
 707         addr_list chain elt with v.
 708
 709         PR pch/51722
 710         * dwarf2out.c (dwarf2out_start_source_file, dwarf2out_define,
 711         dwarf2out_undef): Allocate e.info using ggc_strdup instead
 712         of xstrdup.
 713         (output_macinfo_op): Don't ggc_strdup fd->filename.
 714         (optimize_macinfo_range): Allocate grp_name using XALLOCAVEC,
 715         then ggc_strdup it.  Don't free inc->info or cur->info.
 716         (output_macinfo): Don't free ref->info or file->info.
 717
 718 2012-01-03  Ira Rosen  <irar@il.ibm.com>
 719
 720         PR tree-optimization/51269
 721         * tree-vect-loop-manip.c (set_prologue_iterations): Make
 722         first_niters a pointer.
 723         (slpeel_tree_peel_loop_to_edge): Likewise.
 724         (vect_do_peeling_for_loop_bound): Update call to
 725         slpeel_tree_peel_loop_to_edge.
 726         (vect_gen_niters_for_prolog_loop): Don't compute wide_prolog_niters
 727         here.  Remove it from the parameters list.
 728         (vect_do_peeling_for_alignment): Update calls and compute
 729         wide_prolog_niters.
 730
 731 2012-01-03  Richard Guenther  <rguenther@suse.de>
 732
 733         PR tree-optimization/51070
 734         * tree-loop-distribution.c (stmt_has_scalar_dependences_outside_loop):
 735         Properly handle calls.
 736
 737 2012-01-03  Richard Guenther  <rguenther@suse.de>
 738
 739         PR tree-optimization/51692
 740         * tree-ssa-dce.c (eliminate_unnecessary_stmts): Do not remove
 741         the LHS of allocation stmts.
 742
 743 2012-01-03  Olivier Hainque  <hainque@adacore.com>
 744
 745         * system.h: Prior to #define, #undef fopen and freopen unconditionally.
 746
 747 2012-01-03  Olivier Hainque  <hainque@adacore.com>
 748
 749         * collect2.c (main): In AIX specific computations for vector
 750         insertions, use CONST_CAST2 to cast from char ** to const char **.
 751
 752 2012-01-03  Richard Guenther  <rguenther@suse.de>
 753
 754         PR debug/51650
 755         * dwarf2out.c (dwarf2out_finish): Always create a DIE for
 756         the context of a limbo DIE when it does not already exist.
 757
 758 2012-01-03  Jakub Jelinek  <jakub@redhat.com>
 759
 760         PR tree-optimization/51719
 761         * value-prof.c (gimple_ic): When indirect call isn't noreturn,
 762         but direct call is, clear direct call's lhs and don't add fallthrough
 763         edge from dcall_bb to join_bb and PHIs.
 764
 765 2012-01-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 766
 767         * config/s390/s390.md ("*cmp<mode>_ccs"): Fix comment mentioning
 768         the instructions emitted by the pattern.
 769         ("*TDC_insn_<mode>"): Add comment.
 770
 771 2012-01-03  Richard Guenther  <rguenther@suse.de>
 772
 773         PR middle-end/51730
 774         * fold-const.c (fold_comparison): Properly canonicalize
 775         tree offset and HOST_WIDE_INT bit position.
 776
 777 2012-01-02  Uros Bizjak  <ubizjak@gmail.com>
 778
 779         * config/ia64/ia64.c (expand_vec_perm_broadcast): Use correct
 780         operands for extzv pattern.
 781
 782 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
 783
 784         PR bootstrap/51725
 785         * cselib.c (add_mem_for_addr): Call canonical_cselib_val
 786         on mem_elt first.
 787
 788 2012-01-02  Sandra Loosemore  <sandra@codesourcery.com>
 789
 790         * doc/invoke.texi (-flto and related options): Copy-edit.
 791
 792 2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
 793
 794         * config/mips/mips.md (loadgp_newabi_<mode>): Add missing earlyclobber.
 795
 796 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
 797
 798         * config/i386/sse.md (*avx2_gatherdi<mode>_3, *avx2_gatherdi<mode>_4):
 799         New patterns.
 800
 801 2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
 802
 803         * expr.h (move_by_pieces_ninsns): Declare.
 804         * expr.c (move_by_pieces_ninsns): Make external.
 805         * config/mips/mips-protos.h (mips_move_by_pieces_p): Declare.
 806         (mips_store_by_pieces_p): Likewise.
 807         * config/mips/mips.h (MOVE_BY_PIECES_P): Call mips_move_by_pieces_p.
 808         (STORE_BY_PIECES_P): Likewise mips_store_by_pieces_p.
 809         * config/mips/mips.c (mips_move_by_pieces_p): New function.
 810         (mips_store_by_pieces_p): Likewise.
 811
 812 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
 813
 814         * passes.c (register_one_dump_file): Free full_name.
 815
 816         * reload1.c (reload): Don't allocate reg_max_ref_width here.
 817         (calculate_elim_costs_all_insns): Free offsets_at and
 818         offsets_known_at at the end and clear the pointers.
 819
 820 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
 821
 822         * config/avr/avr.opt (-mbranch-cost): Fix double definition of
 823         this option introduced in r180739.
 824
 825 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
 826
 827         PR target/51345
 828         * config.gcc (tm_file target=avr]): Add avr/avr-multilib.h
 829         (tmake_file target=avr): Add avr/t-multilib.
 830
 831         * config/avr/avr-c.c (avr_cpu_cpp_builtins): Use AVR_HAVE_8BIT_SP
 832         to built-in define __AVR_HAVE_8BIT_SP__, __AVR_HAVE_16BIT_SP__.
 833         * config/avr/genmultilib.awk: New file.
 834         * config/avr/t-multilib: New auto-generated file.
 835         * config/avr/multilib.h: New auto-generated file.
 836         * config/avr/t-avr (AVR_MCUS): New variable.
 837         (genopt.sh): Use it.
 838         (s-mlib): Depend on t-multilib.
 839         (t-multilib, multilib.h): New dependencies.
 840         (s-avr-mlib): New rule to build t-multilib, multilib.h from AVR_MCUS.
 841         (MULTILIB_OPTIONS): Remove.
 842         (MULTILIB_MATCHES): Remove.
 843         (MULTILIB_DIRNAMES): Remove.
 844         (MULTILIB_EXCEPTIONS): Remove:
 845         * config/avr/genopt.sh: Don't use hard coded file name;
 846         pass AVR_MCUS from t-avr instead.
 847
 848 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
 849
 850         * config/avr/avr.c (avr_out_ashrpsi3): Fix "case 31" to "case 23".
 851
 852 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
 853
 854         Implement light-weight DImode support.
 855         * config/avr/avr-dimode.md: New file.
 856         * config/avr/avr.md: Include it.
 857         (adjust_len): Add plus64, compare64.
 858         (HIDI): Remove code iterator.
 859         (code_stdname): New code attribute.
 860         (rotx, rotsmode): Remove DI.
 861         (rotl<mode>3, *rotw<mode>, *rotb<mode>): Use HISI instead of HIDI
 862         as code iterator.
 863         * config/avr/avr-protos.h (avr_have_dimode): New.
 864         (avr_out_plus64, avr_out_compare64): New.
 865         * config/avr/avr.c (avr_out_compare): Handle DImode.
 866         (avr_have_dimode): New variable definition and initialization.
 867         (avr_out_compare64, avr_out_plus64): New functions.
 868         (avr_out_plus_1): Use simplify_unary_operation to negate xval.
 869         (adjust_insn_length): Handle ADJUST_LEN_COMPARE64, ADJUST_LEN_PLUS64.
 870         (avr_compare_pattern): Skip DImode comparisons.
 871
 872 2012-01-02  Revital Eres  <revital.eres@linaro.org>
 873
 874         * ddg.c (def_has_ccmode_p): New function.
 875         (add_cross_iteration_register_deps,
 876         create_ddg_dep_from_intra_loop_link): Call it.
 877
 878 2012-01-02  Richard Guenther  <rguenther@suse.de>
 879
 880         PR other/51679
 881         * invoke.texi (fassociative-math): Remove spurious paranthesis.
 882
 883 2012-01-01  Jakub Jelinek  <jakub@redhat.com>
 884
 885         * gcc.c (process_command): Update copyright notice dates.
 886         * gcov.c (print_version): Likewise.
 887         * gcov-dump.c (print_version): Likewise.
 888         * mips-tfile.c (main): Likewise.
 889         * mips-tdump.c (main): Likewise.
 890
 891 2012-01-01  Ira Rosen  <irar@il.ibm.com>
 892
 893         PR tree-optimization/51704
 894         * tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Check that
 895         a use is inside the basic block or loop before accessing its vect info.
 896
 897 2012-01-01  Jan Hubicka  <jhjh@suse.cz>
 898
 899         PR rtl-optimization/51069
 900         * cfgloopmanip.c (remove_path): Removing path making irreducible
 901         region unconditional makes BB part of the region.
 902
 903 2012-01-01  Jakub Jelinek  <jakub@redhat.com>
 904
 905         PR tree-optimization/51683
 906         * tree-ssa-propagate.c (substitute_and_fold): Don't optimize away
 907         calls with side-effects.
 908         * tree-ssa-ccp.c (ccp_fold_stmt): Likewise.
 909 \f
 910 Copyright (C) 2012 Free Software Foundation, Inc.
 911
 912 Copying and distribution of this file, with or without modification,
 913 are permitted in any medium without royalty provided the copyright
 914 notice and this notice are preserved.