gcc/ChangeLog

   1 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
   2
   3         * combine.c (struct reg_stat): Add new fields truncation_label and
   4         truncated_to_mode.
   5         (record_value_for_reg): Reset truncated_to_mode.
   6         (record_truncated_value): New function.
   7         (check_promoted_subreg): Call it.  Rename to check_conversions.
   8         (combine_instructions): Rename check_promoted_subreg to
   9         check_conversions.
  10         (reg_truncated_to_mode): New function.
  11         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
  12         (gen_lowpart_or_truncate): New function.
  13         (force_to_mode): Use it instead of gen_lowpart.
  14
  15 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
  16
  17         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
  18         VAR is a tag, not its type tag.
  19
  20 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
  21
  22         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
  23         alternatives to match style of other entries.
  24         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
  25
  26 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
  27
  28         PR tree-optimization/25771
  29         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
  30         SSA_NAMES.
  31
  32 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
  33
  34         PR tree-opt/24365
  35         * tree-inline.c (declare_return_variable): If the return variable
  36         was marked as a non gimple complex, set the return slot variable
  37         to be a non gimple comple variable.
  38
  39 2006-01-13  Richard Guenther  <rguenther@suse.de>
  40
  41         * builtins.c (expand_builtin_sincos): New function.
  42         (expand_builtin_mathfn_3): Remove dead code, sin and cos
  43         do not set errno.
  44         (expand_builtin): Expand sincos using expand_builtin_sincos.
  45
  46 2006-01-12  DJ Delorie  <dj@redhat.com>
  47
  48         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
  49         shift counts, separate SI shifts for m32c vs m16c, pass shift type
  50         so that constant shifts can be split.
  51         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
  52         (m32c_valid_pointer_mode): Make static.
  53         (shift_gen_func_for): New.
  54         (m32c_prepare_shift): Use it.  Split large const shifts into
  55         multiple shifts.
  56         * config/m32c/predicates.md (shiftcount_operand): Allow more
  57         general operands.
  58         (longshiftcount_operand): New.
  59         * doc/md.texi (Machine Constraints): Document In6.
  60
  61 2006-01-13  Ben Elliston  <bje@au.ibm.com>
  62
  63         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
  64         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
  65         documentation.
  66
  67 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
  68
  69         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
  70         to try to avoid clobbering pieces of structures when we know
  71         something about the whole structure.
  72         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
  73
  74 2006-01-13  Ben Elliston  <bje@au.ibm.com>
  75
  76         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
  77         return in memory, as this is no limitation is no longer present.
  78
  79 2006-01-12  DJ Delorie  <dj@redhat.com>
  80
  81         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
  82         mova with fb, and for fb+0 -> An.
  83
  84         * config/m32c/mov.md (peephole2): Fix enabling logic.
  85
  86         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
  87         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
  88         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
  89         FINI_ARRAY_SECTION_ASM_OP): Define.
  90
  91         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
  92         variable.
  93         (m32c_legitimize_reload_address): New logic to reload FB to An.
  94         (m32c_output_reg_push): Add newline.
  95         (m32c_output_reg_pop): Likewise.
  96
  97 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
  98
  99         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
 100
 101 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
 102
 103         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
 104
 105 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
 106
 107         * config/sh/predicates.md (sh_rep_vec): Add parallel to
 108         match_code.
 109
 110 2006-01-11  Ben Elliston  <bje@au.ibm.com>
 111
 112         * rtlanal.c (find_reg_note): Assert insn is not null.
 113
 114 2005-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
 115
 116         * df-scan.c (df_hard_reg_init): Move declaration of i outside
 117         ifdef.
 118
 119 2006-01-11  Jeff Law  <law@redhat.com>
 120
 121         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
 122         hold edge pairs.
 123         (mark_threaded_blocks, register_jump_thread): New functions.
 124         (thread_through_all_blocks): Remove unwanted argument.  No
 125         longer rely on e->aux to communicate thread target info.
 126         Call mark_threaded_blocks.  Release the threaded_blocks
 127         bitmap and threaded_edges vector when complete.
 128         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
 129         (threaded_blocks): Remove.
 130         (tree_ssa_dominator_optimize): Remove initialization and
 131         finalization of threaded_blocks.  Simplify call to
 132         thread_through_all_blocks.
 133         (thread_across_edge): Call register_jump_thread rather than
 134         storing thread information into e->aux.
 135         (free_all_edge_infos): Simplify now that e->aux is no longer
 136         used to communicate with thread_through_all_blocks.
 137         * tree-flow.h (thread_through_all_blocks): Update prototype.
 138         (register_jump_thread): Prototype.
 139
 140 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
 141
 142         * df-core.c (df_compact_blocks, df_bb_replace): Use
 143         SET_BASIC_BLOCK instead of BASIC_BLOCK.
 144
 145 2006-01-11  Richard Guenther  <rguenther@suse.de>
 146
 147         PR tree-optimization/25734
 148         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
 149         stop propagation after successful propagation to the LHS.
 150
 151 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
 152
 153         * basic-block.h (control_flow_graph): Change the type of
 154         x_basic_block_info to VEC(basic_block,gc) *.
 155         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
 156         basic_block_info.
 157         (SET_BASIC_BLOCK): New.
 158         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
 159         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
 160         * cfgbuild.c (find_basic_blocks): Likewise.
 161         * cfglayout.c (fixup_reorder_chain): Likewise.
 162         * cfgrtl.c (create_basic_block_structure,
 163         rtl_create_basic_block): Likewise.
 164         * ifcvt.c (find_if_case_1): Likewise.
 165         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
 166         Likewise.
 167
 168 2005-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
 169
 170         * Makefile.in: Removed rotted odf.c entry.
 171
 172 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
 173
 174         PR target/25706
 175         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
 176         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
 177         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
 178         output pattern modifier, not %e.
 179         * config/cris/cris.c (cris_op_str): Update comment about pattern
 180         modifier.
 181         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
 182         before falling through into...
 183         <case 'E'>: Redefined from old 'e' case.
 184
 185 2006-01-11  Jan Hubicka  <jh@suse.cz>
 186
 187         PR target/25042
 188         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
 189
 190 2006-01-11  Jan Hubicka  <jh@suse.cz>
 191
 192         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
 193         * i386.c (x86_decompose_lea): Kill.
 194         (ix86_rtx_costs): Kill.
 195
 196 2006-01-11  Jan Hubicka  <jh@suse.cz>
 197
 198         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
 199         * cgraph.h (cgraph_node): Add inline_decl.
 200         (cgraph_insert_node_to_hashtable): Declare.
 201         (save_inline_function_body): Declare.
 202         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
 203         clones.
 204         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
 205         (cgraph_function_versioning): Update call of tree_function_versioning.
 206         (save_inline_function_body): New function.
 207         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
 208         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
 209         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
 210         (cgraph_default_inline_p): Likewise.
 211         (cgraph_decide_inlining_incrementally): Likewise.
 212         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
 213         (copy_bb): Kill saving; do updating of clones.
 214         (copy_cfg_body): Kill saving.
 215         (initialize_inlined-parameters): Likewise.
 216         (expand_call_inline): Likewise.
 217         (save_body): Kill.
 218         (tree_function_versioning): New parameter "update_clones".
 219         (inlining_p): Kill saving.
 220         * tree-inline.h (tree_function_versioning): Update prototype.
 221         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
 222         saving.
 223
 224 2006-01-11  Ian Lance Taylor <ian@airs.com>
 225
 226         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
 227         Allow undoing set of machine mode.
 228         (do_SUBST): Use enums instead of is_int.
 229         (do_SUBST_MODE): New function.
 230         (SUBST_MODE): New macro.
 231         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
 232         reg and trying to replace reg_regno_rtx with a new register.
 233         (undo_all): Use new enums, handle undoing a PUT_MODE change.
 234         (simplify_set): Use SUBST_MODE.
 235         (distribute_notes): Remove code that tried to update reg notes
 236         for regno_reg_rtx changes.
 237
 238 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
 239
 240         PR tree-optimization/23109
 241         PR tree-optimization/23948
 242         PR tree-optimization/24123
 243
 244         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
 245         * tree-cfg.c (single_noncomplex_succ): New.
 246         * tree-flow.h (single_noncomplex_succ): Declare it.
 247         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
 248         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
 249         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
 250         insert_bb, register_division_in, insert_reciprocals,
 251         replace_reciprocal, free_bb): New.
 252         (execute_cse_reciprocals_1): Rewritten.
 253         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
 254         Do not commit any edge insertion.  Always compute dominators and
 255         create the allocation pool.
 256         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
 257         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
 258         * targhooks.c (default_min_divistions_for_recip_mul): New.
 259         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
 260         * passes.c (init_optimization_passes): Run recip after tree loop
 261         optimizations.
 262         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
 263
 264 2005-01-11  Danny Berlin <dberlin@dberlin.org>
 265             Kenneth Zadeck <zadeck@naturalbridge.com>
 266
 267         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
 268         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
 269         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
 270         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
 271         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
 272         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
 273         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
 274         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
 275         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
 276         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
 277         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
 278         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
 279         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
 280         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
 281         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
 282         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
 283         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
 284         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
 285         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
 286         DF_SCAN_POST_ALLOC): New macros.
 287         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
 288         df_free_bb_function, df_local_compute_function, df_init_function,
 289         df_dataflow_function, df_confluence_function_0,
 290         df_confluence_function_n, df_transfer_function,
 291         df_finalizer_function, df_free_function, df_dump_problem_function,
 292         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
 293         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
 294         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
 295         df_urec_bb_info, ) New types.
 296         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
 297         variables.
 298         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
 299         df_analyze_simple_change_some_blocks,
 300         df_analyze_simple_change_one_block, df_compact_blocks,
 301         df_bb_replace, df_bb_regno_last_use_find,
 302         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
 303         df_insn_regno_def_p, df_find_def, df_find_use,
 304         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
 305         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
 306         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
 307         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
 308         debug_df_chain, df_get_dependent_problem, df_chain_create,
 309         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
 310         df_grow_bb_info, df_chain_dump, df_print_bb_index,
 311         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
 312         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
 313         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
 314         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
 315         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
 316         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
 317         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
 318         df_ref_remove, df_insn_refs_delete, df_refs_delete,
 319         df_reorganize_refs, df_set_state, df_hard_reg_init,
 320         df_read_modify_subreg_p) New public functions.
 321         * df-core.c: The core dataflow solver and glue routines for rtl
 322         dataflow.
 323         (df_init, df_add_problem, df_set_blocks, df_finish,
 324         df_hybrid_search_forward, df_hybrid_search_backward,
 325         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
 326         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
 327         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
 328         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
 329         df_reg_defined, df_find_use, df_reg_used, df_dump,
 330         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
 331         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
 332         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
 333         debug_df_useno, reset_df_after_reload): New functions.
 334         * df-scan.c: The scanning fuctions, once in df.c, completely
 335         rewritten so that they now fully model the functionality of
 336         register usage at the backend.
 337         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
 338         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
 339         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
 340         df_grow_insn_info, df_rescan_blocks, df_ref_create,
 341         df_get_artificial_defs, df_get_artificial_uses,
 342         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
 343         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
 344         df_refs_delete, df_reorganize_refs, df_set_state,
 345         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
 346         df_def_record_1, df_defs_record, df_uses_record,
 347         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
 348         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
 349         df_record_exit_block_uses, df_hard_reg_init): New functions.
 350
 351         * df-problems.c: Seven concrete dataflow problems that use the
 352         scanning in df-scan.c and are solved by the engine in df-core.c.
 353         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
 354         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
 355         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
 356         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
 357         df_ru_free_bb_info, df_ru_alloc,
 358         df_ru_bb_local_compute_process_def,
 359         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
 360         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
 361         df_ru_transfer_function, df_ru_free, df_ru_dump,
 362         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
 363         df_rd_free_bb_info, df_rd_alloc,
 364         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
 365         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
 366         df_rd_transfer_function, df_rd_free, df_rd_dump,
 367         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
 368         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
 369         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
 370         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
 371         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
 372         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
 373         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
 374         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
 375         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
 376         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
 377         df_urec_mark_reg_change, df_urec_check_earlyclobber,
 378         df_urec_mark_reg_use_for_earlyclobber,
 379         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
 380         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
 381         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
 382         df_urec_dump, df_urec_add_problem, df_chain_alloc,
 383         df_chain_create_bb_process_use, df_chain_create_bb,
 384         df_chain_finalize, df_chain_free, df_chains_dump,
 385         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
 386         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
 387         df_reg_lifetime): New functions.
 388         * df.c: Deleted file.
 389         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
 390         consistent with new df api.
 391         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
 392         rest_of_handle_sms): Ditto.
 393         * web.c (unionfind_union, union_defs, entry_register, web_main):
 394         Ditto.
 395         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
 396         invariant_expr_equal_p, find_defs, check_dependencies,
 397         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
 398         free_inv_motion_data, move_loop_invariants): Ditto.
 399         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
 400         Update dependencies.
 401         (odf.c): Added defective entry that was deleted later in day.
 402         * sched-deps.c (sched_analyze_1): Ditto.
 403
 404 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
 405
 406         * tree-ssa-operands.c (get_expr_operands): Record addressable
 407         variables directly.  Do not call add_stmt_operands for CONST_DECLs
 408         and ARRAY_DECLs.
 409         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
 410         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
 411
 412 2006-01-11  Ben Elliston  <bje@au.ibm.com>
 413
 414         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
 415         function returns true in the positive case.
 416
 417 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 418
 419         PR target/20754
 420         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
 421         for SI, DI, SF and DF modes.  Add alternatives to copy between
 422         general and floating point registers to the 32-bit patterns.
 423         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
 424         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
 425         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
 426         generating 64-bit code.
 427         * config/pa/pa.c (output_move_double): Handle copies between general
 428         and floating registers.
 429
 430 2006-01-10  Stuart Hastings  <stuart@apple.com>
 431
 432         * config/i386/i386.md (set_got): Update.
 433         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
 434         (builtin_setjmp_receiver): Mach-O support.
 435         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
 436         (GOT_SYMBOL_NAME): Define.
 437         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
 438         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
 439         * config/i386/i386.c (override_options): Revise for Darwin.
 440         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
 441         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
 442         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
 443         * config/i386/i386-protos.h (output_set_got): Likewise.
 444         * config/darwin.c (machopic_legitimize_pic_address): Update
 445         regs_ever_live[].
 446
 447 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
 448
 449         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
 450         when MODE isn't BLKmode.
 451
 452 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
 453
 454         PR rtl-optimization/25367
 455         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
 456
 457 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
 458
 459         PR target/25718
 460         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
 461         for a negative bound.
 462
 463 2006-01-10  Richard Guenther  <rguenther@suse.de>
 464
 465         * tree-ssa-structalias.c (get_constraint_for_component_ref):
 466         Never override with anything constraint.
 467
 468 2006-01-10  Jan Beulich  <jbeulich@novell.com>
 469
 470         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
 471         256 bits when optimize_size.
 472
 473 2006-01-10  Jan Beulich  <jbeulich@novell.com>
 474
 475         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
 476         MASK_ALIGN_DOUBLE.
 477         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
 478         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
 479         arguments.
 480
 481 2006-01-10  Ben Elliston  <bje@au.ibm.com>
 482
 483         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
 484         float modes.
 485         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
 486         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
 487         (USE_FP_FOR_ARG): Reject decimal float modes.
 488         (function_arg_advance): Likewise.
 489         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
 490         (rs6000_handle_altivec_attribute): Do not permit decimal floating
 491         point types in AltiVec vectors.
 492         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
 493         (rs6000_libcall_value): Likewise.
 494
 495 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
 496
 497         * config/xtensa/ieee754-df.S: New file.
 498         * config/xtensa/ieee754-sf.S: New file.
 499         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
 500         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
 501         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
 502
 503 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
 504
 505         * config/sh/predicates.md (binary_float_operator,
 506         binary_logical_operator, commutative_float_operator,
 507         equality_comparison_operator, greater_comparison_operator,
 508         less_comparison_operator, logical_operator,
 509         noncommutative_float_operator, shift_operator,
 510         symbol_ref_operand, unary_float_operator): Remove redundant
 511         conditionals.
 512
 513 2006-01-09  Jeff Law  <law@redhat.com>
 514
 515         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
 516         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
 517         now unused arguments.  Callers updated.
 518         (eliminate_redundant_computations): Remove now unused arguments,
 519         callers updated.
 520         (local_fold): Remove, no longer used.
 521         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
 522         and moved to...
 523         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
 524         (simplify_cond): New function.
 525         (forward_propagate_into_cond): Call simplify_cond.
 526
 527 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
 528
 529         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
 530         (*vec_extractv2di_1_sse): New.
 531
 532 2006-01-09  Ben Elliston  <bje@au.ibm.com>
 533
 534         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
 535
 536 2006-01-08  Richard Guenther  <rguenther@suse.de>
 537
 538         * tree-ssa-structalias.c (get_constraint_for): Remove
 539         anyoffset argument.
 540         (get_constraint_for_component_ref): Likewise.
 541         (do_deref): Likewise.
 542         (get_constraint_for): Likewise.
 543         (do_structure_copy): Likewise.
 544         (handle_ptr_arith): Likewise.
 545         (find_func_aliases): Likewise.  Remove unused need_anyoffset
 546         variable.
 547
 548 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
 549             Kaz Kojima  <kkojima@gcc.gnu.org>
 550
 551         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
 552         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
 553         (EXTRA_CONSTRAINT_C16): Remove.
 554         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
 555         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
 556         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
 557         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
 558         constants of SHmedia.  Handle nested constant expressions of
 559         SHmedia correctly.
 560         (andcosts): Fix the costs for SHmedia constants.
 561         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
 562         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
 563         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
 564         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
 565         (movv4hi_i, movv2si_i): Likewise.
 566         (movsi_const): Adjust the second operand of ior so to match with
 567         the Csu constraint.
 568         (movdi_const, movdi_const_32bit): Likewise.
 569         (movdi_const_16bit+1): Don't sign-extend LOW.
 570         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
 571         step.
 572         (*double_shori): Fix the split condition.  Use GEN_INT instead
 573         of get_int_mode calls.  Mask lower 16-bit of the argument of
 574         the last GEN_INT.
 575         (sym2GOTPLT): Remove.
 576         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
 577         gen_rtx_UNSPEC.
 578         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
 579         instead of EXTRA_CONSTRAINT_C16.
 580
 581 2006-01-07  Ian Lance Taylor  <ian@airs.com>
 582             David Edelsohn  <edelsohn@gnu.org>
 583
 584         PR rtl-optimization/25662
 585         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
 586         for constant operands instead of simplify_gen_binary.
 587         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
 588         after trying simplify_binary_operation
 589
 590 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
 591
 592         * tree.c (iterative_hash_expr): Hash decls based on UID.
 593
 594 2006-01-06  Eric Christopher  <echristo@apple.com>
 595
 596         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
 597         (TARGET_UNWIND_EMIT): Fix spelling.
 598         * target.h (gcc_target): Add except_table_label.
 599         * except.c (output_function_exception_table): Use.
 600         * varasm.c (default_emit_except_table_label): New.
 601         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
 602         define.
 603         (asm_out): Add here.
 604         * output.h (default_emit_except_table_label): Prototype.
 605         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
 606         * config/darwin.c (darwin_emit_except_table_label): Define.
 607         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
 608
 609 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
 610
 611         PR tree-optimization/18527
 612         * tree-ssa-loop-niter.c (number_of_iterations_cond,
 613         number_of_iterations_special, number_of_iterations_exit):
 614         Move base and step of an iv to a single structure.  Add
 615         no_overflow flag, and use it in # of iterations analysis.
 616         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
 617         folded_casts argument.
 618         (simple_iv): Pass base and step in a structure.  Set no_overflow
 619         flag.
 620         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
 621         Evaluate expensiveness of computing # of iterations instead of
 622         the final expression.
 623         * tree-scalar-evolution.h (affine_iv): New structure.
 624         (simple_iv): Declaration changed.
 625         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
 626         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
 627         find_givs_in_stmt): Changed due to simple_iv change.
 628
 629 2006-01-06  Jeff Law  <law@redhat.com>
 630
 631         PR ada/24994
 632         * tree-cfg.c (bsi_replace): Rename final argument from
 633         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
 634         change (stmt -> orig_stmt).
 635         * tree-eh.c (verify_eh_throw_stmt_node): New function.
 636         (bsi_remove): Add new argument.  Remove EH information
 637         if requested.
 638         (verify_eh_throw_table_statements): New function.
 639         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
 640         updated.
 641         * tree-optimize.c (execute_free_cfg_annotations): Verify
 642         the EH throw statement table after removing annotations.
 643         * except.h (verify_eh_throw_table_statements): Prototype.
 644         * tree-flow.h (bsi_remove): Update prototype.
 645         * tree-vrp.c (remove_range_assertions): Add new argument to
 646         bsi_remove call.
 647         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
 648         * tree-complex.c (expand_complex_div_wide): Likewise.
 649         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
 650         * tree-tailcall.c (eliminate_tailcall): Likewise.
 651         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
 652         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
 653         * tree-nrv.c (tree_nrv): Likewise.
 654         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
 655         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
 656         (combine_blocks): Likewise.
 657         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
 658         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
 659         (cleanup_control_flow): Likewise.
 660         (remove_forwarder_block): Likewise.
 661         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
 662         * tree-sra.c (sra_replace): Likewise.
 663         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
 664         (forward_propagate_single_use_vars): Likewise.
 665         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
 666         * tree-inline.c (expand_call_inline): Likewise.
 667         * tree-vect-transform.c (vect_transform_loop): Likewise.
 668         * tree-outof-ssa.c (rewrite_trees): Likewise.
 669         * tree-cfg.c (make_goto_expr_edges): Likewise.
 670         (cleanup_dead_labels): Likewise.
 671         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
 672         (bsi_move_before, bsi_move_after): Likewise.
 673         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
 674         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
 675
 676 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
 677
 678         PR tree-opt/25528
 679         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
 680         and IMAGPART_EXPR.
 681         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
 682         on non gimple variables.  Also add checks at the top for decls and
 683         mtags.
 684         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
 685         complex types.
 686         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
 687         and IMAGPART_EXPR for creating MUST_DEFs.
 688         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
 689         and NAME_MEMORY_TAG separately from the DECLs.
 690
 691 2006-01-06  Richard Guenther  <rguenther@suse.de>
 692
 693         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
 694         annotation, if necessary.
 695         * tree-ssa-pre.c (create_expression_by_pieces): Remove
 696         redundant calls to update_stmt.
 697         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
 698         Likewise.
 699
 700 2006-01-05  Richard Henderson  <rth@redhat.com>
 701
 702         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
 703
 704 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
 705
 706         * c-typeck.c: Update copyright date.
 707
 708 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
 709
 710         * c-typeck.c (build_c_cast): Always warn when casting
 711         from a pointer to an integer of different size, even if
 712         the node was constant.
 713
 714 2006-01-05  Richard Guenther  <rguenther@suse.de>
 715
 716         PR tree-optimization/22555
 717         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
 718         if one structure field is an array.
 719         * tree-ssa-operands.c (get_expr_operands): Continue scanning
 720         operands even if we found a subvar, but ignore VOPs in this
 721         case.
 722         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
 723         for renaming.
 724         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
 725
 726 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
 727
 728         PR middle-end/24998
 729         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
 730
 731 2006-01-05  Richard Guenther  <rguenther@suse.de>
 732             Diego Novillo  <dnovillo@redhat.com>
 733
 734         * tree-pass.h (TODO_remove_unused_locals): Define.
 735         * gimple-low.c (expand_var_p, remove_useless_vars,
 736         pass_remove_useless_vars): Remove.  Update all users.
 737         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
 738         (remove_unused_locals): New function.
 739         * tree-flow.h (remove_unused_locals): Declare.
 740         * passes.c (execute_todo): Call remove_unused_locals if
 741         TODO_remove_unused_locals is set.
 742         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
 743         * tree-ssa-dce.c (pass_dce): Likewise.
 744         * tree-outof-ssa.c (pass_del_ssa): Likewise.
 745
 746 2006-01-05  Richard Guenther  <rguenther@suse.de>
 747
 748         * tree-flow.h (struct fieldoff): Decompose field to
 749         type, size and decl.
 750         * tree-ssa-alias.c (create_sft): Take type as parameter.
 751         (create_overlap_variables_for): Store type, size and decl
 752         in the fieldoff structure.
 753         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
 754         of struct fieldoff.
 755         (push_fields_onto_fieldstack): Likewise.
 756         (create_variable_info_for): Likewise.  Use offset for the
 757         SFT name if the decl is not available.
 758
 759 2006-01-04  Paul Brook  <paul@codesourcery.com>
 760
 761         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
 762
 763 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
 764
 765         * lambda-code.c (can_put_in_inner_loop): Relax
 766         restrictions.
 767         (can_put_after_inner_loop): New function.
 768         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
 769         (perfect_nestify): Change to make copies and modify uses.
 770
 771 2006-01-04  Richard Henderson  <rth@redhat.com>
 772
 773         Merge from gomp branch:
 774         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
 775         via integer constant.
 776         (pragma_lex): Remove.
 777         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
 778         rather than parsing it.
 779         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
 780         handle_pragma_extern_prefix): Add %< %> quotes.
 781         (registered_pragmas): New.
 782         (c_register_pragma_1): New.
 783         (c_register_pragma): Use it.
 784         (c_register_pragma_with_expansion): Likewise.
 785         (c_invoke_pragma_handler): New.
 786         (init_pragma): Use cpp_register_deferred_pragma directly for
 787         pch_preprocess.
 788         * c-pragma.h (enum pragma_kind): New.
 789         (pragma_handler): New.
 790         (c_invoke_pragma_handler): Declare.
 791         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
 792         CPP_PRAGMA_EOL.
 793         * c-common.h (c_common_pch_pragma): Update decl.
 794         * Makefile.in (c-parser.o): Update dependencies.
 795         (GTFILES): Add c-pragma.h.
 796         * c-parser.c (struct c_token): Add pragma_kind.
 797         (struct c_parser): Add in_pragma.
 798         (c_lex_one_token): Always initialize keyword and pragma_kind.
 799         Extract data for CPP_PRAGMA.
 800         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
 801         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
 802         Don't allow CPP_PRAGMA_EOL if in_pragma.
 803         (c_parser_consume_pragma): New.
 804         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
 805         (c_parser_skip_to_end_of_parameter): Likewise.
 806         (c_parser_skip_to_end_of_block_or_statement): Likewise.
 807         (c_parser_skip_to_pragma_eol): New.
 808         (c_parser_external_declaration): Handle CPP_PRAGMA.
 809         (c_parser_compound_statement_nostart): Likewise.
 810         (c_parser_statement_after_labels): Likewise.
 811         (c_parser_pragma): New.
 812         (pragma_lex): Likewise.
 813         (c_parser_pragma_pch_preprocess): New.
 814         (c_parser_new): Merge into ...
 815         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
 816
 817 2006-01-04  Jeff Law  <law@redhat.com>
 818
 819         PR ada/24994
 820         * tree-cfg.c (bsi_replace): Remove the original statement
 821         from the EH throw statement table.
 822
 823 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
 824
 825         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
 826         make the prototype extern "C" and add throw ().
 827
 828         PR target/25554
 829         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
 830         and pos non-negative and pos + len <= 32.
 831         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
 832         drop pos + len < HOST_BITS_PER_WIDE_INT test.
 833         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
 834
 835         PR c/25559
 836         * c-common.c (handle_vector_size_attribute): Reject zero vector size
 837         as well as sizes not multiple of component size.
 838
 839         PR debug/25562
 840         * function.c (instantiate_expr): New function.
 841         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
 842         walk its DECL_VALUE_EXPR with instantiate_expr.
 843
 844         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
 845         DW_OP_deref{,_size} if address isn't going to be added.
 846
 847 2006-01-04  Ben Elliston  <bje@au.ibm.com>
 848
 849         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
 850         * config/fp-bit.c: Likewise.
 851
 852 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
 853
 854         * dominance.c: Add comment about why we use DFS numbering
 855         of dominance tree.
 856
 857 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
 858             Richard Henderson  <rth@redhat.com>
 859
 860         Merge from gomp-branch:
 861         * varasm.c (assemble_variable): Handle thread-local COMMON data.
 862         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
 863
 864 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
 865
 866         PR rtl-optimization/25578
 867         * combine.c (combine_simplify_rtx, force_to_mode): Don't
 868         pass a parameter to simplify_shift_const if changing ASHIFTRT
 869         to LSHIFTRT.
 870
 871 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
 872
 873         * builtins.c (get_builtin_sync_mem): New function.
 874         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
 875         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
 876         Call get_builtin_sync_mem to generate mem rtx.
 877
 878 2006-01-03  Richard Guenther  <rguenther@suse.de>
 879
 880         PR c/25183
 881         * stmt.c (add_case_node): Make sure to clear overflow flags
 882         from ranges.
 883
 884 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
 885
 886         Merge from gomp-branch.
 887         * config/sparc/sync.md: New file.
 888         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
 889         UNSPECV_LDSTUB): New constants.
 890         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
 891         * config/sparc/predicates.md (memory_reg_operand): New predicate.
 892         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
 893         prototype.
 894
 895 2006-01-03  Roger Sayle  <roger@eyesopen.com>
 896
 897         * combine.c (reg_subword_p): New predicate to test whether the
 898         destination of a set refers to a subword/piece of a register.
 899         (try_combine): Generalize the code to merge the setting of a
 900         pseudo to a constant followed by a set of a subword of that
 901         register to a constant.
 902
 903 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
 904
 905         * basic-block.h (control_flow_graph): Change the type of
 906         x_label_to_block_map to VEC(basic_block,gc) *.
 907         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
 908         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
 909
 910         * tree-ssa-propagate.c (cfg_blocks): Change the type to
 911         VEC(basic_block,heap) *.
 912         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
 913         ssa_prop_fini): Adjust the uses of cfg_blocks.
 914
 915 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
 916
 917         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
 918         COMPONENT_REFs.
 919         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
 920         hashing trees instead of a pointer hash.
 921         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
 922         compare for MEM_EXPR.
 923
 924         PR rtl-optimization/25130
 925         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
 926         when comparing MEMs for GCSE
 927
 928 2006-01-03  Ben Elliston  <bje@au.ibm.com>
 929
 930         * targhooks.h (default_decimal_float_supported_p): Declare.
 931         * targhooks.c (default_decimal_float_supported_p): Define.
 932         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
 933         `default_decimal_float_supported_p'.
 934         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
 935
 936 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
 937
 938         * combine.c (apply_distributive_law <SUBREG>): Check
 939         TRULY_NOOP_TRUNCATION.
 940
 941 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
 942
 943         * dwarf2out.c (have_switched_text_section): Delete.
 944         (have_multiple_function_sections): New.
 945         (have_location_lists): Make 'bool'.
 946         (add_AT_loc_list): Use 'true' not '1'.
 947         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
 948         (output_loc_list): Use have_multiple_function_sections.
 949         (output_ranges): Likewise.
 950         (dwarf2out_begin_function): Set have_multiple_function_sections if
 951         necessary.
 952         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
 953         Check function_section rather than DECL_SECTION_NAME.
 954         (dwarf2out_finish): Use have_multiple_function_sections.
 955         Don't clear have_location_lists.
 956
 957 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
 958             Jan Hubicka  <jh@suse.cz>
 959
 960         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
 961         case of conditional jump jumping to the next instruction.
 962         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
 963         cases of conditional jump jumping to the next instruction.
 964
 965 2006-01-02  Jan Hubicka  <jh@suse.cz>
 966
 967         * i386.c (*_cost): Add COSTS_N_INSNS.
 968         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
 969
 970 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
 971
 972         PR target/25259
 973         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
 974
 975 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 976
 977         * config/arm/arm.c (all_fpus): Fix comment typo.
 978         * config/darwin.c: Likewise.
 979         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
 980         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
 981         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
 982
 983 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
 984
 985         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
 986         (rs6000_split_compare_and_swapqhi): New.
 987         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
 988         (sync_compare_and_swapqhi_internal): New.
 989         * config/rs6000/rs6000-protos.h: Declare.