gcc/ChangeLog

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