gcc/ChangeLog

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