gcc/ChangeLog

   1 2006-03-03  Steve Ellcey  <sje@cup.hp.com>
   2
   3         PR rtl-optimization/26345
   4         PR target/19061
   5         * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
   6
   7 2006-03-03  Roger Sayle  <roger@eyesopen.com>
   8
   9         PR tree-optimization/26524
  10         * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
  11         fold_convert to create a constant of the appropriate type.
  12
  13 2006-03-03  Richard Sandiford  <richard@codesourcery.com>
  14
  15         * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
  16         SYMBOL_REF_IN_BLOCK_P.
  17         * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
  18         of SYMBOL_FLAG_IN_BLOCK.
  19         * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
  20         instead of SYMBOL_REF_IN_BLOCK_P.
  21         * explow.c (use_anchored_address): Likewise.
  22         * rtl.c (rtx_size): Likewise.
  23         * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
  24         instead of SYMBOL_FLAG_IN_BLOCK.
  25         (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
  26         SYMBOL_REF_IN_BLOCK_P.
  27         (assemble_variable): Likewise.
  28         (output_constant_def_contents): Likewise.
  29         (output_constant_pool): Likewise.
  30         (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
  31         instead of SYMBOL_FLAG_IN_BLOCK.
  32         * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
  33         SYMBOL_REF_IN_BLOCK_P.
  34         (SYMBOL_REF_BLOCK): Likewise.
  35         (SYMBOL_REF_OFFSET): Likewise.
  36         (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
  37         SYMBOL_REF_IN_BLOCK_P.
  38         (SYMBOL_FLAG_IN_BLOCK): Replace with...
  39         (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
  40         (SYMBOL_REF_IN_BLOCK_P): Replace with...
  41         (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
  42
  43 2006-03-03  Jakub Jelinek  <jakub@redhat.com>
  44
  45         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
  46
  47 2006-03-02  Roger Sayle  <roger@eyesopen.com>
  48
  49         * simplify-rtx.c (simplify_unary_operation): When simplifying
  50         (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
  51         that we perform the right shift in the appropriate mode, and
  52         then extend or truncate the result to requested mode.
  53
  54 2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>
  55
  56         * gengtype.c (main): Handle double_int type.
  57         * tree.h (struct tree_int_cst): Make type of int_cst double_int.
  58         * double-int.c: New file.
  59         * double-int.h: New file.
  60         * system.h: Include doubleint.h.
  61         * Makefile.in (SYSTEM_H): Include double-int.h.
  62         (double-int.o): Add.
  63
  64 2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>
  65
  66         PR bootstrap/26478
  67         * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
  68         copying over it.
  69
  70 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
  71
  72         * tree-vrp.c (remove_range_assertions): Do not update statements
  73         unnecessarily.
  74
  75 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
  76
  77         * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
  78         cleanup.
  79         * gcse.c (rest_of_handle_gcse): Ditto.
  80         * except.c (gate_handle_eh): Ditto.
  81         * cfgcleanup.c (rest_of_handle_jump2): Ditto.
  82         * basic-block.h (CLEANUP_PRE_LOOP): Remove.
  83
  84 2006-03-02  Eric Christopher  <echristo@apple.com>
  85
  86         * config/i386/i386.c (machopic_output_stub): Add indirection to
  87         jump.
  88
  89 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
  90
  91         * loop.c: Removed.
  92
  93 2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
  94
  95         Sun Niagara specific optimizations.
  96         * config.gcc: Recognize niagara as target.
  97         * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
  98         (TARGET_CPU_niagara): Define.
  99         (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
 100         (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
 101         (CPP_CPU_SPEC): Handle -mcpu=niagara.
 102         (ASM_CPU_SPEC): Likewise.
 103         (PROCESSOR_NIAGARA): New enum entry.
 104         (REGISTER_MOVE_COST): Handle Niagara.
 105         (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
 106         * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
 107         (sparc_override_options): Recognize "niagara", set appropriate
 108         default MASK_* values for it, and align functions to 32-bytes
 109         by default just like ULTRASPARC/ULTRASPARC3.
 110         (sparc_initialize_trampoline): Handle niagara like ultrasparc.
 111         (sparc64_initialize_trampoline): Likewise.
 112         (sparc_use_sched_lookahead): Use zero for niagara.
 113         (sparc_issue_rate): Use one for niagara.
 114         * config/sparc/niagara.md: New file.
 115         * config/sparc/sparc.md: Include it.
 116         * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
 117         ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
 118         when default cpu is niagara.
 119         (CPP_CPU_SPEC): Handle -mcpu=niagara.
 120         (ASM_CPU_SPEC): Likewise.
 121         * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
 122         when default cpu is niagara.
 123         (ASM_CPU_SPEC): Handle -mcpu=niagara.
 124         * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
 125         just like v9/ultrasparc/ultrasparc3.
 126         * doc/invoke.texi: Add documentation for "niagara" and improve
 127         existing documentation for ultrasparc variants.
 128
 129 2006-03-02  Diego Novillo  <dnovillo@redhat.com>
 130
 131         * tree-ssa-operands.c (update_stmt_operands): Update documentation.
 132
 133 2006-03-02  Richard Sandiford  <richard@codesourcery.com>
 134
 135         * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
 136         (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
 137         and say that only one is needed.
 138         * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
 139         * target.h (have_switchable_bss_sections): New hook.
 140         * explow.c (use_anchored_address): Check that the symbol is in a block.
 141         * varasm.c (tls_comm_section, comm_section, lcomm_section)
 142         (bss_noswitch_section): New variables.
 143         (get_unnamed_section): Add SECTION_UNNAMED to the flags.
 144         (get_noswitch_section): New function.
 145         (get_block_for_section): Allow SECT to be null.
 146         (unlikely_text_section_p): Use SECTION_STYLE.
 147         (bss_initializer_p): New function.
 148         (get_variable_section): Move earlier in file.  Take a new argument,
 149         prefer_noswitch_p.  Move bss checks from assemble_variable to here.
 150         Return one of the new *_sections in such cases.
 151         (get_block_for_decl): New function, extracting some logic from
 152         use_blocks_for_decl_p.
 153         (change_symbol_section): Remove in favor of...
 154         (change_symbol_block): ...this new function.
 155         (use_blocks_for_decl_p): Remove checks now performed by
 156         get_block_for_decl.
 157         (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
 158         (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
 159         (emit_local, emit_bss, emit_common): ...these new functions.
 160         Return true if the alignment was honored.
 161         (emit_tls_common): New function.
 162         (asm_emit_uninitialised): Delete.
 163         (assemble_variable_noswitch): New function, split out from...
 164         (assemble_variable): ...here.  Don't make decisions about common
 165         variables here.  Globalize all public decls that go into non-common
 166         sections.  Check whether SYMBOL_REF_BLOCK is null.
 167         (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
 168         (output_constant_pool): Likewise.
 169         (init_varasm_once): Initialize the new section variables.
 170         (have_global_bss_p): New function.
 171         (categorize_decl_for_section): Use bss_initializer_p.
 172         (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
 173         (place_block_symbol): Assert that the symbol must be in a block.
 174         * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
 175         (TARGET_INITIALIZER): Include it.
 176         * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
 177         * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
 178         (SECTION_MACH_DEP): Bump by two.
 179         (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
 180         (unnamed_section): Mention SECTION_UNNAMED in comment.
 181         (named_section): Likewise SECTION_NAMED.
 182         (noswitch_section_callback): New type.
 183         (noswitch_section): New structure.
 184         (section): Add a noswitch_section alternative.
 185         (SECTION_STYLE): New macro.
 186         (tls_comm_section, comm_section, lcomm_section): Declare.
 187         (bss_noswitch_section, have_global_bss_p): Declare.
 188         * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
 189         * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
 190         Override.
 191         * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
 192         * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
 193         Override.
 194
 195 2006-03-02  Daniel Berlin <dberlin@dberlin.org>
 196
 197         * gcc/tree-vrp.c (execute_vrp): Return value.
 198         * gcc/regrename.c (rest_of_handle_regrename): Ditto.
 199         * gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
 200         * gcc/tree-complex.c (tree_lower_complex): Ditto.
 201         (tree_lower_complex_O0): Ditto.
 202         * gcc/tracer.c (rest_of_handle_tracer): Ditto.
 203         * gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
 204         * gcc/postreload.c (rest_of_handle_postreload): Ditto.
 205         * gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
 206         (execute_tail_calls): Ditto.
 207         * gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
 208         * gcc/tree.h (init_function_for_compilation): Ditto.
 209         * gcc/ipa-cp.c (ipcp_driver): Ditto.
 210         * gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
 211         * gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
 212         * gcc/final.c (compute_alignments): Ditto.
 213         (rest_of_handle_final): Ditto.
 214         (rest_of_handle_shorten_branches): Ditto.
 215         (rest_of_clean_state): Ditto.
 216         * gcc/omp-low.c (execute_expand_omp): Ditto.
 217         (execute_lower_omp): Ditto.
 218         * gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
 219         * gcc/ipa-reference.c (static_execute): Ditto.
 220         * gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
 221         * gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
 222         (rest_of_handle_machine_reorg): Ditto.
 223         * gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
 224         * gcc/flow.c (recompute_reg_usage): Ditto.
 225         (rest_of_handle_remove_death_notes): Ditto.
 226         (rest_of_handle_life): Ditto.
 227         (rest_of_handle_flow2): Ditto.
 228         * gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
 229         * gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
 230         (do_ssa_store_ccp): Ditto.
 231         (execute_fold_all_builtins): Ditto.
 232         * gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
 233         * gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
 234         * gcc/ipa-pure-const.c (static_execute): Ditto.
 235         * gcc/cse.c (rest_of_handle_cse): Ditto.
 236         (rest_of_handle_cse2): Ditto.
 237         * gcc/web.c (rest_of_handle_web): Ditto.
 238         * gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
 239         * gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
 240         * gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
 241         * gcc/tree-nrv.c (tree_nrv): Ditto.
 242         (execute_return_slot_opt): Ditto.
 243         * gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
 244         (create_structure_vars): Ditto.
 245         * gcc/loop-init.c (rtl_loop_init): Ditto.
 246         (rtl_loop_done): Ditto.
 247         (rtl_move_loop_invariants): Ditto.
 248         (rtl_unswitch): Ditto.
 249         (rtl_unroll_and_peel_loops): Ditto.
 250         (rtl_doloop): Ditto.
 251         * gcc/gimple-low.c (lower_function_body): Ditto.
 252         (mark_used_blocks): Ditto.
 253         * gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
 254         * gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
 255         (cgraph_early_inlining): Ditto.
 256         * gcc/global.c (rest_of_handle_global_alloc): Ditto.
 257         * gcc/jump.c (cleanup_barriers): Ditto.
 258         (purge_line_number_notes): Ditto.
 259         * gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
 260         (rest_of_handle_if_after_reload): Ditto.
 261         * gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
 262         (tree_ssa_loop_im): Ditto.
 263         (tree_ssa_loop_unswitch): Ditto.
 264         (tree_vectorize): Ditto.
 265         (tree_linear_transform): Ditto.
 266         (tree_ssa_loop_ivcanon): Ditto.
 267         (tree_ssa_empty_loop): Ditto.
 268         (tree_ssa_loop_bounds): Ditto.
 269         (tree_complete_unroll): Ditto.
 270         (tree_ssa_loop_prefetch): Ditto.
 271         (tree_ssa_loop_ivopts): Ditto.
 272         (tree_ssa_loop_done): Ditto.
 273         * gcc/predict.c (tree_estimate_probability): Ditto.
 274         * gcc/recog.c (split_all_insns_noflow): Ditto.
 275         (rest_of_handle_peephole2): Ditto.
 276         (rest_of_handle_split_all_insns): Ditto.
 277         * gcc/tree-eh.c (lower_eh_constructs): Ditto.
 278         * gcc/regmove.c (rest_of_handle_regmove): Ditto.
 279         (rest_of_handle_stack_adjustments): Ditto.
 280         * gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
 281         * gcc/function.c (instantiate_virtual_regs): Ditto.
 282         (init_function_for_compilation): Ditto.
 283         (rest_of_handle_check_leaf_regs): Ditto.
 284         * gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
 285         (rest_of_handle_gcse): Ditto.
 286         * gcc/ipa-type-escape.c (type_escape_execute): Ditto.
 287         * gcc/alias.c (rest_of_handle_cfg): Ditto.
 288         * gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
 289         * gcc/profile.c (rest_of_handle_branch_prob): Ditto.
 290         * gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
 291         * gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
 292         * gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
 293         * gcc/tree-dfa.c (find_referenced_vars): Ditto.
 294         * gcc/except.c (set_nothrow_function_flags): Ditto.
 295         (convert_to_eh_region_ranges): Ditto.
 296         (rest_of_handle_eh): Ditto.
 297         * gcc/emit-rtl.c (unshare_all_rtl): Ditto.
 298         (remove_unnecessary_notes): Ditto.
 299         * gcc/except.h (set_nothrow_function_flags): Ditto.
 300         (convert_to_eh_region_ranges): Ditto.
 301         * gcc/cfgexpand.c (tree_expand_cfg): Ditto.
 302         * gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
 303         * gcc/tree-ssa-pre.c (do_pre): Ditto.
 304         (execute_fre): Ditto.
 305         * gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
 306         (rest_of_handle_jump2): Ditto.
 307         * gcc/tree-sra.c (tree_sra): Ditto.
 308         * gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
 309         (execute_mudflap_function_decls): Ditto.
 310         * gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
 311         (do_store_copy_prop): Ditto.
 312         * gcc/ipa-prop.h (ipcp_driver): Ditto.
 313         * gcc/cfglayout.c (insn_locators_initialize): Ditto.
 314         * gcc/tree-ssa-forwprop.c
 315         (tree_ssa_forward_propagate_single_use_vars): Ditto.
 316         * gcc/cfglayout.h (insn_locators_initialize): Ditto.
 317         * gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
 318         * gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
 319         (execute_late_warn_uninitialized): Ditto.
 320         * gcc/rtl.h (cleanup_barriers): Ditto.
 321         (split_all_insns_noflow): Ditto.
 322         (purge_line_number_notes): Ditto.
 323         (unshare_all_rtl): Ditto.
 324         (remove_unnecessary_notes): Ditto.
 325         (recompute_reg_usage): Ditto.
 326         (variable_tracking_main): Ditto.
 327         * gcc/integrate.c (emit_initial_value_sets): Ditto.
 328         * gcc/integrate.h (emit_initial_value_sets): Ditto.
 329         * gcc/tree-optimize.c (execute_free_datastructures): Ditto
 330         (execute_free_cfg_annotations): Ditto.
 331         (execute_fixup_cfg): Ditto.
 332         (execute_cleanup_cfg_pre_ipa): Ditto.
 333         (execute_cleanup_cfg_post_optimizing): Ditto.
 334         (execute_init_datastructures): Ditto.
 335         * gcc/tree-object-size.c (compute_object_sizes): Ditto.
 336         * gcc/combine.c (rest_of_handle_combine): Ditto.
 337         * gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
 338         * gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
 339         (rest_of_handle_reorder_blocks): Ditto.
 340         (rest_of_handle_partition_blocks): Ditto.
 341         * gcc/var-tracking.c (variable_tracking_main): Ditto.
 342         * gcc/tree-profile.c (tree_profiling): Ditto.
 343         * gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
 344         * gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
 345         * gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
 346         (rest_of_handle_sched2): Ditto.
 347         * gcc/basic-block.h (free_bb_insn): Ditto.
 348         * gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
 349         * gcc/tree-cfg.c (execute_build_cfg): Ditto.
 350         (remove_useless_stmts): Ditto.
 351         (split_critical_edges): Ditto.
 352         (execute_warn_function_return): Ditto.
 353         (execute_warn_function_noreturn): Ditto.
 354         * gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
 355         * gcc/cfgrtl.c (free_bb_for_insn): Ditto.
 356         * gcc/passes.c (execute_one_pass): Run additional
 357         todos returned by execute function.
 358         * gcc/tree-pass.h (struct tree_opt_pass): Make execute
 359         return a value.
 360
 361 2006-03-02  Richard Guenther  <rguenther@suse.de>
 362
 363         * tree-ssa-alias.c (find_used_portions): Consider taking
 364         the address as making the variable not write-only.
 365
 366 2006-03-02  Nick Clifton  <nickc@redhat.com>
 367
 368         * config.gcc (default_use_cxa_atexit): Extend the description of
 369         this configure variable.  Set its default value to "yes" for
 370         Linux, NetBSD and ELF targets on the assumption that they will
 371         use C libraries with the __cxa_atexit function.
 372
 373 2006-03-02  Ben Elliston  <bje@au.ibm.com>
 374
 375         * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
 376         parameter as unused to suppress a build warning.
 377
 378 2006-03-02  Ben Elliston  <bje@au.ibm.com>
 379
 380         * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
 381         config/dfp-bit.c.
 382
 383 2006-03-01  Roger Sayle  <roger@eyesopen.com>
 384
 385         PR other/26489
 386         * gthr-posix.h (__gthrw2): Define to take three parameters, the
 387         declared name, the weak reference name, and the typeof name.
 388         (__gthrw): Avoid expanding the declared name suffix.
 389         (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
 390
 391 2006-03-01  Jakub Jelinek  <jakub@redhat.com>
 392
 393         * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
 394         from DWARF 3.
 395         (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
 396         DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
 397         DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
 398         DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
 399         DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
 400         (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
 401         (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
 402         DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
 403         (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
 404         DW_DS_leading_separate, DW_DS_trailing_separate): New.
 405         (DW_END_default, DW_END_big, DW_END_little): New.
 406         (DW_END_lo_user, DW_END_hi_user): Define.
 407         (DW_LNE_lo_user, DW_LNE_hi_user): Define.
 408         (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
 409         (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
 410         DW_LANG_D): New.
 411
 412 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
 413
 414         * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
 415         Update all users.
 416         * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
 417         Update all users.
 418         (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
 419         Update all users.
 420         * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
 421         Update all users.
 422         * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
 423         to 'symbol_mem_tag'.
 424         Update all users.
 425         * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
 426         rename.
 427
 428 2006-03-01  Roger Sayle  <roger@eyesopen.com>
 429
 430         * builtins.c (fold_builtin_copysign): Delete unreachable code.
 431
 432 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
 433
 434         PR target/25761
 435         * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
 436         MACHO_DYNAMIC_NO_PIC_P.
 437         (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
 438
 439 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
 440
 441         PR target/26389
 442         * config/darwin-protos.h (darwin_asm_output_anchor):
 443         Declare.
 444         * config/darwin-sections.def (cstring_section):
 445         Add SECTION_MERGE to the flags.
 446         (literal4_section): Likewise.
 447         (literal8_section): Likewise.
 448         (objc_selector_refs_section): Likewise.
 449         (objc_cls_refs_section): Likewise.
 450         * config/darwin.c (darwin_asm_output_anchor): New
 451         function.
 452         * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
 453
 454 2006-03-01  Daniel Berlin  <dberlin@dberlin.org>
 455
 456         Fix PR tree-optimization/26443
 457         * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
 458         to todo and PROP_tmt_usage to properties_destroyed.
 459         * tree-ssa-ccp.c (pass_ccp): Ditto.
 460         (pass_store_ccp): Ditto.
 461         * tree-ssa-dom.c (pass_dominator): Ditto.
 462
 463 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
 464
 465         * tree-ssa-operands.c: Cleanup whitespace.
 466         (get_asm_expr_operands): Move before first invocation.
 467         (get_indirect_ref_operands): Likewise.
 468         (get_tmr_operands): Likewise.
 469         (get_call_expr_operands): Likewise.
 470         (append_def): Likewise.
 471         (append_use): Likewise.
 472         (append_v_may_def): Likewise.
 473         (append_v_must_def): Likewise.
 474         (add_call_clobber_ops): Likewise.
 475         (add_call_read_ops): Likewise.
 476         (add_stmt_operand): Likewise.
 477         (add_virtual_operand): Likewise.
 478         (build_ssa_operands): Likewise.
 479
 480 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
 481
 482         PR middle-end/26022
 483         Revert:
 484         PR middle-end/24437
 485         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
 486         with a call expr to ...
 487         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
 488
 489 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
 490
 491         * tree-vrp.c (extract_range_from_assert): Remove special
 492         handling for types with super-types.
 493
 494 2006-03-01  Ben Elliston  <bje@au.ibm.com>
 495
 496         * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
 497         and powerpc64-*-linux* configurations.
 498         * config/t-dfprules: New file.
 499
 500         * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
 501         Compile dfp-bit.c from the source directory using -DWIDTH and
 502         $DFP_CFLAGS to control the compilation of that file, rather than
 503         generating width-specific versions in the build directory.
 504         * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
 505         (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
 506
 507 2006-02-28  Zack Weinberg  <zackw@panix.com>
 508
 509         * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
 510         continues to work.
 511
 512 2006-02-28  Eric Christopher  <echristo@apple.com>
 513
 514         * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
 515         Set up IN_LIBGCC definition of TARGET_64BIT.
 516         * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
 517
 518 2006-02-28  Roger Sayle  <roger@eyesopen.com>
 519
 520         PR middle-end/14752
 521         * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
 522         BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
 523         cases via the construction of "expr != 0".
 524
 525 2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
 526
 527         * alias.c (alias_invariant, alias_invariant_size): Remove.
 528         (record_base_value): Remove.
 529         (memrefs_conflict_p): Don't look at alias_invariant.
 530         (end_alias_analysis): Don't free it.
 531         * alias.h (record_base_value): Remove prototype.
 532
 533 2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
 534             Adam Nemet  <anemet@caviumnetworks.com>
 535
 536         * rtl.h (truncated_to_mode): Declare it.
 537         (struct rtl_hooks): Add reg_truncated_to_mode hook.
 538         * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
 539         (RTL_HOOKS_INITIALIZER): Include it.
 540         * rtlhooks.c (reg_truncated_to_mode_general): New function.
 541         * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
 542         reg_truncated_to_mode.
 543         * rtlanal.c (truncated_to_mode): Define it.
 544         * simplify-rtx.c (simplify_unary_operation_1): Use it.
 545
 546 2006-02-28  Jeff Law  <law@redhat.com>
 547
 548         * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
 549         conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
 550         the range allowed by TYPE_PRECISION.
 551
 552         * tree.h (strct phi_arg_d): Remove unused NONZERO field.
 553
 554 2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>
 555
 556         PR tree-optimization/26419
 557         * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
 558         values of n.
 559
 560 2006-02-27  Zack Weinberg  <zackw@panix.com>
 561
 562         * doc/md.texi: Fix typo in previous change.
 563
 564 2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>
 565
 566         * df.c: Remove.
 567
 568 2006-02-27  Zack Weinberg  <zackw@panix.com>
 569
 570         * rtl.def (define_constraint, define_register_constraint)
 571         (define_memory_constraint, define_address_constraint): New MD forms.
 572         * gensupport.c (process_rtx): Put define_constraint etc on the
 573         predicate queue.
 574         * genpreds.c (process_define_predicate): Adjust comment.  Validate
 575         the name, and call validate_exp to validate the expression.
 576         (mark_mode_tests, write_extract_subexp): Can assume correct input.
 577         (write_predicate_expr): Likewise.  NAME argument no longer necessary;
 578         all callers changed.
 579         (validate_exp, needs_variable, struct constraint_data)
 580         (constraints_by_letter_table, first_constraint, last_constraint_ptr)
 581         (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
 582         (const_dbl_constraints, constraint_max_namelen)
 583         (have_register_constraints, have_memory_constraints)
 584         (have_address_constraints, have_address_constraints)
 585         (have_extra_constraints, have_const_int_constraints)
 586         (have_const_dbl_constraints, mangle, add_constraint)
 587         (process_define_constraint, process_define_register_constraint)
 588         (write_enum_constraint_num, write_lookup_constraint)
 589         (write_insn_constraint_len, write_regclass_for_constraint)
 590         (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
 591         (write_insn_extra_memory_constraint)
 592         (write_insn_extra_address_constraint)
 593         (write_satisfies_constraint_fns): New.
 594         (write_tm_preds_h): If we have new-style constraint definitions,
 595         prototype the functions generated from them, and define the
 596         old constraint interface (still used by generic code) in terms of
 597         those functions.
 598         (write_insn_preds_c): If we have new-style constraint definitions,
 599         generate all relevant functions from those definitions.
 600         (main): Handle define_constraint etc.
 601         * genoutput.c (struct constraint_data, indep_constraints)
 602         (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
 603         (mdep_constraint_len): New data structures and functions, defined
 604         #ifdef USE_MD_CONSTRAINTS.
 605         (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
 606         (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
 607         use new logic to validate operand constraints against constraint
 608         definitions.
 609         (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
 610         defined.
 611         * defaults.h: If none of the old-style constraint macros are
 612         defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
 613         old-style macros; and poison REG_CLASS_FROM_LETTER,
 614         CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
 615         EXTRA_CONSTRAINT.
 616         * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
 617         * doc/md.texi: Document new constraint-definition mechanism and the
 618         C interface it provides.  Remove references to old mechanism
 619         elsewhere in the document.
 620         (Machine Constraints): Use pathnames relative to gcc directory,
 621         i.e. config/ARCH/FILE.  Change i386 section to refer to
 622         config/i386/predicates.md; update that section to match docstrings.
 623         * doc/tm.texi: Move all documentation of the old constraint-
 624         definition macros to their own section, clearly mark as obsolete.
 625
 626         * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
 627         (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
 628         definitions.
 629         * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
 630         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
 631         * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
 632         constraint strings.
 633         (splits and peepholes): Use satisfies_constraint_*.
 634         * config/i386/i386.c (memory_address_length)
 635         (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
 636
 637 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
 638
 639         * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
 640         scalar operation to be put back into the loop.
 641
 642 2006-02-27  Jakub Jelinek  <jakub@redhat.com>
 643
 644         PR other/26208
 645         * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
 646         (extract_cie_info): Handle S flag in augmentation string.
 647         (execute_cfa_program): If context->signal_frame, execute also
 648         fs->pc == context->ra instructions.
 649         (uw_frame_state_for): If context->signal_frame, don't subtract one
 650         from context->ra to find FDE.
 651         (uw_update_context_1): Set context->signal_frame to
 652         fs->signal_frame.
 653         (_Unwind_GetIPInfo): New function.
 654         * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
 655         * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
 656         of _Unwind_GetIP.
 657         * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
 658         * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
 659         * unwind-compat.c (_Unwind_GetIPInfo): New function.
 660         * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
 661         * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
 662         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
 663         * config/i386/linux-unwind.h (x86_fallback_frame_state,
 664         x86_64_fallback_frame_state): Set fs->signal_frame.
 665         * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
 666         (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
 667         (frob_update_context): Likewise.  Workaround missing S flag in
 668         Linux 2.6.12 - 2.6.16 kernel vDSOs.
 669         * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
 670         Remove the psw_addr + 1 hack.
 671
 672 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
 673
 674         * tree-ssa-structalias.c (get_constraint_for): Move code to deal
 675         with aggregates here.
 676         (find_func_aliases): Remove code for &<aggregate> from here.
 677
 678 2006-02-26  Roger Sayle  <roger@eyesopen.com>
 679
 680         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
 681         (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
 682         Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
 683         as (X & C) ne/eq 0.
 684
 685 2006-02-26  Roger Sayle  <roger@eyesopen.com>
 686
 687         PR middle-end/19983
 688         * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
 689
 690 2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>
 691
 692         * opts.c (decode_options): Do not handle flag_strength_reduce.
 693         (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
 694         and OPT_fstrength_reduce.
 695         * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
 696         flag_prefetch_loop_arrays for being nonzero.
 697         * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
 698         no-ops.
 699         (fprefetch-loop-arrays-rtl): Removed.
 700         (flag_prefetch_loop_arrays): Do not specify the value.
 701
 702         * doc/passes.texi: Update documentation of loop optimizer
 703         passes.
 704         * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
 705         -frerun-loop-opt): Remove.
 706
 707 2006-02-26  Richard Guenther  <rguenther@suse.de>
 708
 709         PR tree-optimization/26421
 710         * tree-ssa-alias.c (find_used_portions): Don't treat parameters
 711         in function calls that are ADDR_EXPRs as using the whole structure.
 712
 713 2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>
 714
 715         * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
 716         * tree-pass.h (pass_loop_optimize): Remove.
 717         * passes.c (pass_loop_optimize): Never run it.
 718         * toplev.c (backend_init): Don't call init_loop.
 719         * opts.c (flag_loop_optimize_set): Remove.
 720         (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
 721         (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
 722         the old RTL loop optimizer when profiling enabled.
 723         * predict.c (tree_estimate_probability): Always strip builtin_expect.
 724         * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
 725         pre-headers for the sake of the old RTL loop optimizer.
 726         * Makefile.in: Remove all references to loop.o.
 727
 728         * doc/invoke.texi: Remove all references to -floop-optimize
 729         and -frerun-loop-opt.
 730
 731 2006-02-26  Zack Weinberg  <zackw@panix.com>
 732
 733         * doc/md.texi (Machine Constraints): Refer to all files with paths
 734         relative to gcc directory (i.e. config/CPU/file).  Add missing
 735         @table @code ... @end table to M32C subsection.
 736
 737 2006-02-26  Roger Sayle  <roger@eyesopen.com>
 738
 739         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
 740         (X & 1) == 0.
 741         <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
 742
 743 2006-02-26  Roger Sayle  <roger@eyesopen.com>
 744             James A. Morrison  <phython@gcc.gnu.org>
 745
 746         PR middle-end/21137
 747         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
 748         when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
 749         new constant C2<<C1, or as (X<0) or (X,false) depending upon the
 750         signedness of the shift operation.
 751
 752 2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>
 753
 754         PR tree-optimization/26359
 755         * tree-ssa-alias.c (new_type_alias): Set fields for new tag.
 756
 757 2006-02-25  Roger Sayle  <roger@eyesopen.com>
 758
 759         * simplify-rtx.c (simplify_relational_operation_1):  Simplify
 760         (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
 761         as X == 0, and some symmetry related transformations.
 762         Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.
 763
 764 2006-02-25  Roger Sayle  <roger@eyesopen.com>
 765
 766         PR middle-end/23673
 767         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (X^Y) == 0 as X == Y
 768         and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
 769         symmetry related transformations.  Fold (X^C1) == C2 as
 770         X == (C1^C2).
 771
 772 2006-02-25  Juergen Weigert  <jw@suse.de>
 773         Richard Guenther  <rguenther@suse.de>
 774
 775         * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.
 776
 777 2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
 778
 779         * combine.c (gen_lowpart_or_truncate): Call
 780         simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
 781
 782 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
 783
 784         * doc/invoke.texi: Move -fopenmp description to "Options for
 785         Code Generation".
 786         Remove reference to -lgomp.
 787
 788 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
 789
 790         * doc/install.texi: Require GNU tar version 1.14.
 791
 792 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
 793
 794         * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
 795         * doc/invoke.texi (C++ Dialect Options): Document
 796         -fno-use-cxa-get-exception-ptr.
 797         * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
 798         * configure: Regenerate.
 799         * c.opt (fuse-cxa-get-exception-ptr): New.
 800         * c-opts.c (c_common_handle_option): Handle
 801         OPT_fuse_cxa_get_exception_ptr.
 802         * c-common.c (flag_use_cxa_atexit): Update documentation.
 803         (flag_use_cxa_get_exception_ptr): New.
 804         * c-common.h (flag_use_cxa_get_exception_ptr): New.
 805         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
 806         documentation.
 807         (C_COMMON_OVERRIDE_OPTIONS): New.
 808
 809 2006-02-24  Roger Sayle  <roger@eyesopen.com>
 810
 811         PR middle-end/24952
 812         * combine.c (try_combine): Explicitly check whether GET_CODE is
 813         a SET or a CLOBBER, instead on checking that it isn't a USE.
 814
 815 2006-02-24  Roger Sayle  <roger@eyesopen.com>
 816
 817         * fold-const.c (fold_comparison): New subroutine of fold_binary
 818         containing transformations common to both the equality and
 819         ordering relational operators, factored out of fold_binary.
 820         (fold_binary): Separate out the equality operators (EQ_EXPR
 821         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
 822         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
 823         transformations common to both.
 824         (fold_div_compare): Fix latent bugs in the previously unreachable
 825         LT_EXPR and GE_EXPR cases.
 826
 827 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
 828
 829         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
 830         decl libname for clog to __clog on AIX.
 831
 832         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
 833
 834 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
 835
 836         PR target/26453
 837         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
 838         output traceback table for thunks.  Localise rs6000_stack_info call.
 839
 840 2006-02-23  Roger Sayle  <roger@eyesopen.com>
 841             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
 842
 843         * gthr-posix.h (__gthrw): Fix typo in comment.
 844
 845 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
 846
 847         * doc/cpp.texi (Character sets): Document that we do support
 848         input files to be in any character set.
 849
 850 2006-02-23  Jeff Law  <law@redhat.com>
 851
 852         * tree.h (PHI_ARG_NONZERO): Remove.
 853         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
 854         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
 855         node to the new node.
 856
 857         PR tree-optimization/26425
 858         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
 859         min/max, then assume its varying.
 860
 861 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
 862
 863         PR rtl-optimization/26316
 864         * rtlanal.c (enum may_trap_p_flags): New.
 865         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
 866         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
 867         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
 868         (may_trap_after_code_motion_p): New function.
 869         * loop-invariant.c (find_identical_invariants): Fix dump formating.
 870         (find_invariant_insn): Use may_trap_after_code_motion_p.
 871         * rtl.h (may_trap_after_code_motion_p): Declare.
 872
 873 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
 874
 875         * emit-rtl.c (immed_double_const): Cleanup.
 876
 877 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
 878
 879         Fix PR tree-optimization/26376
 880         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
 881         remove assert.
 882
 883 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
 884
 885         PR middle-end/26412
 886         * gimplify.c (omp_add_variable): Guard variable size decl test with
 887         DECL_SIZE (decl) check.
 888
 889 2006-02-23  Richard Guenther  <rguenther@suse.de>
 890
 891         PR middle-end/26439
 892         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
 893         like aggregate types.
 894
 895 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
 896
 897         * configure.ac: Add --with{,out}-long-double-128 configure option.
 898         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
 899         * configure: Rebuilt.
 900         * config.in: Rebuilt.
 901         * doc/install.texi (Options specification): Document
 902         --with-long-double-128.
 903
 904         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
 905         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
 906         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
 907         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
 908
 909 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
 910
 911         * config/s390/s390.c (override_options): Handle
 912         TARGET_DEFAULT_LONG_DOUBLE_128.
 913
 914         * config/alpha/alpha.c (override_options): Handle
 915         TARGET_DEFAULT_LONG_DOUBLE_128.
 916
 917         * config/sparc/sparc.c (sparc_override_options): Handle
 918         TARGET_DEFAULT_LONG_DOUBLE_128.
 919
 920 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
 921
 922         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
 923         (real-install-headers-tar, real-install-headers-cpio)
 924         (real-install-headers-cp): New targets.
 925
 926 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
 927
 928         * tree.h (variable_section): Delete.
 929         * varasm.c (variable_section): Delete.
 930
 931 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
 932
 933         * install.texi: Add notes on install.texi2html.
 934         (Building in parallel): Do not use footnotes.
 935
 936 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
 937
 938         PR libgomp/26234
 939         * doc/install.texi (Configuration): Document --disable-libgomp.
 940
 941 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
 942
 943         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
 944
 945 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
 946
 947         * config/i386/sse.md (vec_extractv2df_1_sse): New.
 948         (vec_extractv2df_0_sse): New.
 949
 950 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
 951
 952         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
 953         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
 954         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
 955         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
 956         to the result of the expression.
 957         (def_cfa_1): Adjust.
 958         (frame_pointer_cfa_offset): Rename to...
 959         (frame_pointer_fb_offset): ... this.  Adjust all uses.
 960         (convert_cfa_to_loc_list): Rename to...
 961         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
 962         Pass it on to build_cfa_loc.
 963         (compute_frame_pointer_to_cfa_displacement): Rename to...
 964         (compute_frame_pointer_to_fb_displacement): ... this.  New
 965         offset parameter.  Use it in computation.
 966         (gen_subprogram_die): Compute cfa_fb_offset with the new
 967         macro, and use it to compute the fb loc list and the
 968         displacement.
 969
 970 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
 971
 972         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
 973         replaced with register_operand.
 974         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
 975         non-DREG is expensive.
 976         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
 977         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
 978         involving memory.
 979
 980 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
 981
 982         * doc/install.texi2html: Use set -e.
 983
 984 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
 985
 986         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
 987         (ASM_OUTPUT_SHARED_LOCAL): Delete.
 988         * doc/invoke.texi (-fshared-data): Delete.
 989         * common.opt (fshared-data): Delete.
 990         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
 991         (assemble_static_space): Remove #if 0 code.
 992         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
 993         (ASM_OUTPUT_SHARED_LOCAL): Poison.
 994         * config/cris/cris.h: Remove FIXME.
 995
 996 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
 997
 998         * doc/sourcebuild.texi (Front End Directory): No more double-colon
 999         hooks.
1000
1001 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
1002
1003         PR middle-end/26379
1004         * combine.c (simplify_shift_const_1): Disable nested shifts
1005         optimization for vector shifts.
1006
1007 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1008
1009         PR tree-optimization/26361
1010         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
1011         of unsigned integer types.
1012
1013 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
1014
1015         * tree-chrec.c (eq_evolutions_p): New.
1016         * tree-chrec.h (eq_evolutions_p): Declared.
1017         * tree-data-ref.c: Fix formatting.
1018         (datadep_stats, dependence_stats): New.
1019         (gcd): Moved...
1020         (print_direction_vector): New.
1021         (dump_data_dependence_relation): Use print_direction_vector.
1022         (object_analysis, create_data_ref): Handle COMPONENT_REF.
1023         (compute_subscript_distance): Static.
1024         (initialize_data_dependence_relation): Static.  Get the number
1025         of loops surrounding the references from the callers, and initialize
1026         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
1027         base_object_differ_p analyzers.
1028         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
1029         compute_overlap_steps_for_affine_1_2,
1030         analyze_subscript_affine_affine): Count the classified dependences.
1031         Print a message when a test failed.
1032         (can_use_analyze_subscript_affine_affine): New.
1033         (analyze_siv_subscript): Compute the data dependences on symbolic
1034         scevs that verify can_use_analyze_subscript_affine_affine.
1035         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
1036         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
1037         Handle symbolic scevs.
1038         (analyze_overlapping_iterations): Let symbolic affine scevs to be
1039         analyzed.
1040         (subscript_dependence_tester): Moved...
1041         (build_classic_dist_vector, build_classic_dir_vector): Don't use
1042         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
1043         DDR_SIZE_VECT instead of getting it in parameter.
1044         (subscript_dependence_tester): ... here.  Take as a parameter
1045         loop_nest_depth.  Call build_classic_dist_vector and
1046         build_classic_dir_vector.
1047         (compute_affine_dependence): Update subscript_dependence_tester
1048         parameters.  Update datadep_stats counters.  Call
1049         compute_subscript_distance.
1050         (compute_self_dependence): Save the dist and dir vectors.  Call
1051         compute_subscript_distance.
1052         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
1053         (compute_all_dependences): Reorder parameters as they were before
1054         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
1055         compute_subscript_distance.  Update the use of
1056         compute_affine_dependence and initialize_data_dependence_relation.
1057         (find_data_references_in_loop): Handle COMPONENT_REF.
1058         (compute_data_dependences_for_loop): Initialize dependence_stats.
1059         Don't call build_classic_dist_vector and build_classic_dir_vector.
1060         Update the parameters of initialize_data_dependence_relation and
1061         compute_all_dependences.  Print the statistics from datadep_stats.
1062         (analyze_all_data_dependences): Static.  Not used until the pass for
1063         checking the data dependences is contributed.
1064         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
1065         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
1066         (initialize_data_dependence_relation, compute_affine_dependence,
1067         analyze_all_data_dependences, compute_subscript_distance): Removed.
1068         (print_direction_vector): New.
1069         * lambda.h (gcd): ... here.
1070         (lambda_vector_gcd): Moved here from gcd_vector.
1071         * lambda-code.c (gcd, gcd_vector): Removed.
1072         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
1073         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
1074
1075 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
1076
1077         * ipa-type-escape.c: Tidy some comments and white space.
1078         * tree-ssa-operands.c: Likewise.
1079
1080 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
1081
1082         PR tree-opt/25879
1083         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
1084         (dump_decl_name): Do not walk the decl tree chains.
1085         * tree-pass.h (TDF_CHAIN): Remove.
1086
1087 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
1088
1089         * Makefile.in (C): Remove
1090         (PROTO): Remove
1091         (.PHONY): Remove C and PROTO
1092
1093 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1094
1095         PR middle-end/26236
1096         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
1097         deprecated CHAR_TYPE tree code.
1098
1099 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1100
1101         * configure.ac (target_list): Add install-info, dvi, html.
1102         * configure: Regenerate.
1103
1104         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
1105         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
1106         treelang/Make-lang.in: Do not use double-colon rules.
1107
1108 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
1109
1110         * tree.h (struct tree_memory_tag): Add is_used_alone member.
1111         (TMT_USED_ALONE): New macro.
1112         * tree-pass.h (PROP_tmt_usage): New property.
1113         (TODO_update_tmt_usage): New todo.
1114         * tree-ssa-alias.c (updating_used_alone): New variable.
1115         (recalculate_used_alone): New function.
1116         (compute_may_aliases): Set updating_used_alone, call
1117         recalculate_used_alone.
1118         * tree-sra.c (pass_sra): Note that this pass destroys
1119         PROP_tmt_usage, and add TODO_update_tmt_usage.
1120         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
1121         * tree-flow.h (updating_used_alone): Prototype.
1122         (recalculate_used_alone): Ditto.
1123         * passes.c (execute_todo): Add code to set updating_used_alone,
1124         and call recalculate.
1125         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
1126         for clobber if used alone, and add assert to verify used_alone
1127         status.
1128
1129 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
1130
1131         * config/s390/s390.c (legitimize_pic_address): Assertions checking
1132         for non tls symbols added.
1133         (legitimize_address): Do nothing for PLUS expressions if one of the
1134         addends is a tls symbol reference.
1135
1136 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1137
1138         PR bootstrap/25476
1139
1140         * Makefile.in (LDFLAGS): Define from autoconf substitution.
1141
1142         * Makefile.in (BOOTSTRAPPING): New.
1143         (quickstrap): New definition if BOOTSTRAPPING=yes.
1144
1145         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
1146         * configure.ac: Substitute all_selected_languages with the languages
1147         that were configured.  For all the other variables except
1148         lang_specs_files, include all the languages in the tree.
1149         * configure: Regenerate.
1150
1151         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
1152         if there is one.  Run the commands to run fixincludes in the same
1153         subshell.
1154
1155         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
1156         * doc/install.texi: Document exact conventions for searching target tools.
1157         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
1158         something more about building an Ada cross-compiler.  Don't list GNU Make
1159         requirements which affect all platforms.
1160
1161 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1162
1163         PR middle-end/19543
1164         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
1165         only equivalent if the have both the same mode and precision.
1166
1167 2006-02-20  Ben Elliston  <bje@au.ibm.com>
1168
1169         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
1170
1171 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1172             Steven Bosscher  <stevenb.gcc@gmail.com>
1173
1174         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
1175         constant pool references to identify stack mode constants.
1176         * rtlanal.c (constant_pool_constant_p): New predicate to check
1177         whether operand is a floating point constant in the pool.
1178         * rtl.h (constant_pool_constant_p): Prototype here.
1179         * loop.c (scan_loop): Avoid hoisting constants from the constant
1180         pool on STACK_REGS targets.
1181         (load_mems): Likewise.
1182         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
1183         loads into x87 registers expensive in terms of register pressure.
1184
1185 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1186
1187         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
1188         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
1189
1190 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
1191
1192         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
1193         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
1194
1195 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
1196
1197         * doc/invoke.texi: Document -fipa-pta.
1198         * common.opt: Add ipa-pta option.
1199         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
1200         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
1201         (do_ds_constraint): Ditto.
1202         (get_constraint_for): Only add to referenced_vars if
1203         referenced_vars exists.
1204         (insert_into_field_list): Rewrite to do this unsorted.
1205         (insert_into_field_list_sorted): Rename old insert_into_field_list
1206         to this.
1207         (create_function_info_for): Use insert_into_field_list_sorted.
1208         (create_variable_info_for): Rewrite so it uses unsorted version,
1209         since the field list is sorted.
1210         (intra_create_variable_infos): Only add to referenced_vars if
1211         referenced_vars exists.
1212         (ipa_pta_execute): Init heapvars, and delete when done.
1213         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
1214
1215 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1216
1217         * doc/install.texi: Add missing `@samp'.
1218
1219 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
1220
1221         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
1222         Use the arguments.
1223
1224 2006-02-18  Mark Wielaard  <mark@klomp.org>
1225
1226         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
1227         who added new 4.1 features, bug fixes and integration support.
1228
1229 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
1230
1231         PR target/26350
1232         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
1233         MEM for ABI_V4 pic.
1234
1235 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
1236
1237         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
1238         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
1239         (copy_insn_1): Likewise.  Don't copy each field individually.
1240         Reindent.
1241         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
1242         of RTX_SIZE.
1243         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
1244         * rtl.c (rtx_size): Rename variable to...
1245         (rtx_code_size): ...this.
1246         (rtx_size): New function.
1247         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
1248         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
1249         Reindent.
1250         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
1251         * rtl.h (rtx_code_size): New variable.
1252         (rtx_size): Change from a variable to a function.
1253         (RTX_SIZE): Rename to...
1254         (RTX_CODE_SIZE): ...this.
1255
1256         PR target/9703
1257         PR tree-optimization/17106
1258         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
1259         (Anchored Addresses): New section.
1260         * doc/invoke.texi (-fsection-anchors): Document.
1261         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
1262         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
1263         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
1264         * hooks.c (hook_bool_mode_rtx_false): New function.
1265         * hooks.h (hook_bool_mode_rtx_false): Declare.
1266         * gengtype.c (create_optional_field): New function.
1267         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
1268         SYMBOL_REF_IN_BLOCK_P is true.
1269         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
1270         (min_anchor_offset, max_anchor_offset): Likewise.
1271         (use_anchors_for_symbol_p): New hook.
1272         * toplev.c (compile_file): Call output_object_blocks.
1273         (target_supports_section_anchors_p): New function.
1274         (process_options): Check that -fsection-anchors is only used on
1275         targets that support it and when -funit-at-a-time is in effect.
1276         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
1277         if the decl doesn't have one.
1278         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
1279         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
1280         of force_const_mem through use_anchored_address.
1281         (expand_expr_constant): New function.
1282         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
1283         calling expand_expr for INDIRECT_REF.
1284         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
1285         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
1286         * expr.h (use_anchored_address): Declare.
1287         * loop-unroll.c: Don't declare rtx vectors here.
1288         * explow.c: Include output.h.
1289         (validize_mem): Call use_anchored_address.
1290         (use_anchored_address): New function.
1291         * common.opt (-fsection-anchors): New switch.
1292         * varasm.c (object_block_htab, anchor_labelno): New variables.
1293         (hash_section, object_block_entry_eq, object_block_entry_hash)
1294         (use_object_blocks_p, get_block_for_section, create_block_symbol)
1295         (use_blocks_for_decl_p, change_symbol_section): New functions.
1296         (get_variable_section): New function, split out from assemble_variable.
1297         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
1298         use_blocks_for_decl_p say so.  Use change_symbol_section if the
1299         symbol has already been created.
1300         (assemble_variable_contents): New function, split out from...
1301         (assemble_variable): ...here.  Don't output any code for
1302         block symbols; just pass them to place_block_symbol.
1303         Use get_variable_section and assemble_variable_contents.
1304         (get_constant_alignment, get_constant_section, get_constant_size): New
1305         functions, split from output_constant_def_contents.
1306         (build_constant_desc): Create a block symbol if use_object_blocks_p
1307         says so.  Or into SYMBOL_REF_FLAGS.
1308         (assemble_constant_contents): New function, split from...
1309         (output_constant_def_contents): ...here.  Don't output any code
1310         for block symbols; just pass them to place_section_symbol.
1311         Use get_constant_section and get_constant_alignment.
1312         (force_const_mem): Create a block symbol if use_object_blocks_p and
1313         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
1314         (output_constant_pool_1): Add an explicit alignment argument.
1315         Don't switch sections here.
1316         (output_constant_pool): Adjust call to output_constant_pool_1.
1317         Switch sections here instead.  Don't output anything for block symbols;
1318         just pass them to place_block_symbol.
1319         (init_varasm_once): Initialize object_block_htab.
1320         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
1321         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
1322         (place_block_symbol, get_section_anchor, output_object_block)
1323         (output_object_block_htab, output_object_blocks): New functions.
1324         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
1325         (TARGET_ASM_OUT): Include it.
1326         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
1327         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
1328         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
1329         (TARGET_INITIALIZER): Include them.
1330         * rtl.c (rtl_check_failed_block_symbol): New function.
1331         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
1332         (block_symbol, object_block): New structures.
1333         (rtx_def): Add a block_symbol field to the union.
1334         (BLOCK_SYMBOL_CHECK): New macro.
1335         (rtl_check_failed_block_symbol): Declare.
1336         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
1337         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
1338         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
1339         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
1340         * output.h (output_section_symbols): Declare.
1341         (object_block): Name structure.
1342         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
1343         (default_use_anchors_for_symbol_p): Declare.
1344         * Makefile.in (RTL_BASE_H): Add vec.h.
1345         (explow.o): Depend on output.h.
1346         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
1347         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
1348         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
1349         (rs6000_use_blocks_for_constant_p): New function.
1350
1351 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1352
1353         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
1354
1355 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
1356
1357         PR tree-opt/25680
1358         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
1359         IMAGPART_EXPR.
1360
1361 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
1362
1363         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
1364         is_aliased.
1365         Update all users.
1366
1367 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
1368
1369         PR middle-end/26334
1370         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
1371         instead of DECL_REGISTER.
1372
1373 2006-02-18  Olivier Hainque  <hainque@adacore.com>
1374
1375         PR ada/13408
1376         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
1377
1378 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
1379
1380         PR target/24837
1381         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
1382         * opth-gen.awk: Handle Var and InverseMask together.
1383         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
1384         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
1385         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
1386         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
1387         used together.
1388         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1389         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1390         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
1391         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1392         LINUX_DYNAMIC_LINKER): Define.
1393         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
1394         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
1395         TARGET_GLIBC.
1396         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1397         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
1398         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1399         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1400         (TARGET_C99_FUNCTIONS): Don't define.
1401         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
1402         GLIBC_DYNAMIC_LINKER.
1403         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
1404         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
1405         GLIBC_DYNAMIC_LINKER64): Define.
1406         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1407         LINUX_DYNAMIC_LINKER64.
1408         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1409         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1410         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
1411         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1412         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1413         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1414         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
1415         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
1416         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
1417         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
1418         and LINUX_DYNAMIC_LINKER32.
1419         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1420         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1421         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
1422         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1423         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
1424         TARGET_GLIBC.
1425         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
1426         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
1427         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1428         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1429         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1430         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
1431         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
1432         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
1433         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1434         LINUX_DYNAMIC_LINKER): Define.
1435         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
1436         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
1437         GLIBC_DYNAMIC_LINKER64): Define.
1438         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1439         LINUX_DYNAMIC_LINKER64.
1440         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1441         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1442         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
1443         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1444         LINUX_DYNAMIC_LINKER): Define.
1445         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1446         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1447         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
1448         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
1449         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
1450         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1451         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
1452         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
1453         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1454         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1455         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1456         * doc/invoke.texi (-muclibc): Remove caveat about supported
1457         targets.
1458
1459 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
1460
1461         * doc/cpp.texi (__TIMESTAMP__): Document.
1462
1463 2006-02-17  Roger Sayle  <roger@eyesopen.com>
1464
1465         PR middle-end/25600
1466         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
1467         C is one less than the width of X (and related transformations).
1468         * simplify-rtx.c (simplify_unary_operation_1): Transform
1469         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
1470         depending on STORE_FLAG_VALUE, were C is one less then the
1471         width of X.
1472
1473 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
1474
1475         Fix PR tree-optimization/26341
1476         * tree-ssa-operands.c (add_virtual_operand): Remove assert
1477         about NAME_MEMORY_TAG's.
1478
1479 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1480
1481         PR target/26255
1482         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
1483         with hardware float support, and software float support.  Add fcpy
1484         alternative to hardware patterns.  Add alternatives to copy between
1485         general and floating-point registers to the 32-bit pattern.
1486         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
1487         secondary reload to load a QI or HI mode constant into a floating
1488         point register.
1489         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
1490         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
1491
1492 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
1493
1494         PR target/26272
1495         * config/rs6000/darwin.md (load_macho_picbase_si): Add
1496         pc to the pattern.
1497         (load_macho_picbase_di): Likewise.
1498
1499 2006-02-16  Jeff Law  <law@redhat.com>
1500
1501         * tree-vrp.c (set_value_range_to_nonnegative): New function.
1502         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
1503         (ssa_name_nonzero_p): Likewise.
1504         (get_value_range): Return NULL if VRP is not running.
1505         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
1506         VRP routines do not discover a range.
1507         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
1508         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
1509         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
1510         (tree_expr_nonnegative_p): Similarly.
1511         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
1512         (restore_nonzero_vars_to_original_value): Remove.
1513         (unsafe_associative_fp_binop): Remove.
1514         (tree_ssa_dominator_optimize): Remove initialization and
1515         finalization of nonzero_vars and nonzero_vars_stack.
1516         (dom_opt_initialize_block): No longer push marker on
1517         nonzero_vars_stack.
1518         (dom_opt_finalize_block): No longer call
1519         restore_nonzero_vars_to_original_value.
1520         (record_equivalences_from_phis): No longer look for
1521         nonzero PHI arguments.
1522         (cprop_into_successor_phis): No longer propagate nonzero
1523         property into PHI arguments.  Lose unused argument.  Caller
1524         updated.
1525         (record_equivalences_from_stmt): No longer record nonzero
1526         values for SSA_NAMEs.
1527         (lookup_avail_expr): No longer use nonzero_vars.
1528
1529         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
1530         for sizetype when sizetype is unsigned.
1531
1532 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
1533
1534         PR rtl-optimization/25603
1535         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
1536         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
1537         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
1538         with new meaning of SETS.
1539
1540 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
1541
1542         PR target/20353
1543         PR target/24578
1544         PR target/24837
1545         * config/linux.opt: New file.
1546         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
1547         LINUX_DYNAMIC_LINKER): Define.
1548         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
1549         * config.gcc (*-*-linux*): Define extra_options.
1550         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
1551         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
1552         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
1553         GLIBC_DYNAMIC_LINKER.
1554         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
1555         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1556         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1557         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1558         * doc/invoke.texi (GNU/Linux Options): New section.
1559
1560 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
1561
1562         * config/sparc/sparc.md (setjmp): Rewrite.
1563         (setjmp_32): Delete.
1564         (setjmp_64): Likewise.
1565
1566 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
1567
1568         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
1569          previous change.
1570
1571 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
1572
1573         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
1574         read-write uses.
1575
1576 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
1577
1578         PR rtl-optimization/26296
1579         * Makefile.in (loop-invariant.c): Add except.h dependency.
1580         * loop-invariant.c: Include except.h.
1581         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
1582
1583 2005-02-16  Paul Brook  <paul@codesourcery.com>
1584
1585         * reload1.c (emit_reload_insns): Invalidate dead input registers used
1586         for reloads.
1587
1588 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
1589
1590         PR rtl-optimization/25636
1591         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
1592         when deciding whether an insn is an initializing insn.
1593
1594 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
1595
1596         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
1597         (tree_code_size): Ditto.
1598         * tree.h (struct tree_memory_tag): Remove parent_var.
1599         (struct tree_struct_field_tag): New.
1600         (SFT_OFFSET): New.
1601         (SFT_SIZE): New.
1602         (union tree_node): Add sft member.
1603         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
1604         specially here.
1605         (create_sft): Add size and offset argument, set SFT_OFFSET and
1606         SFT_SIZE.
1607         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
1608         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
1609         * tree-flow-inline.h (get_subvar_at): Update for
1610         SFT_OFFSET/SFT_SIZE.
1611         (var_can_have_subvars): Ditto.
1612         (overlap_subvar): Ditto.
1613         * print-tree.c (print_node): Print out interesting things for
1614         SFT's.
1615         * tree-flow.h (struct subvar): Remove offset and size members.
1616         * tree-ssa-operands.c (get_expr_operands): Update for
1617         get_indirect_ref_operands changes.
1618         (get_indirect_ref_operands): Call add_virtual_operand instead of
1619         add_stmt_operand.  Only recurse on base var if requested.
1620         (access_can_touch_variable): New function.
1621         (add_stmt_operand): Split virtual operand handling into ...
1622         (add_virtual_operand): Here.  Add offset, size, and for_clobber
1623         arguments.  Prune alias sets.
1624         (add_call_clobber_ops): Call add_virtual_operand.
1625
1626 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
1627
1628         PR middle-end/26300
1629         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
1630
1631         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
1632         than TREE_CODE as index into omp_clause_num_ops array.
1633
1634 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
1635
1636         PR rtl-optimization/26184
1637         * modulo-sched.c (generate_reg_moves): Free bitmap vector
1638         uses_of_defs.
1639         * modulo-sched.c (sms_schedule): Free g_arr pointer.
1640         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
1641         must_precede, must_follow and tobe_scheduled.
1642
1643         PR other/26147
1644         * opts.c (common_handle_option): Free new_option pointer.
1645         * df-core.c (df_analyze): Free postorder pointer.
1646
1647 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
1648
1649         * Makefile.in: Fix the examples about the use of stamps
1650
1651 2006-02-15  Michael Matz  <matz@suse.de>
1652
1653         PR middle-end/22275
1654
1655         * stor-layout.c (layout_decl): Zero-width bitfields aren't
1656         influenced by maximum_field_alignment or DECL_PACKED.
1657         (update_alignment_for_field): Ditto.
1658         (place_field): Ditto.
1659         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
1660         this behaviour.
1661
1662 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
1663
1664         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
1665         (debug_flow_info): Pass it.
1666         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
1667         * bb-reorder.c (reorder_basic_blocks): Likewise.
1668         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
1669         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
1670         * flow.c (life_analysis, recompute_reg_usage): Likewise.
1671         * gcse.c (gcse_main, bypass_jumps): Likewise.
1672         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
1673         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
1674         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
1675         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
1676         * rtl.h (dump_flow_info): Adjust prototype.
1677         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
1678         * var-tracking.c (variable_tracking_main): Likewise.
1679         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
1680         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
1681         options.
1682
1683 2006-02-15  Marcin Dalecki <martin@dalecki.de>
1684
1685         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
1686         construction.
1687
1688 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
1689
1690         PR tree-optimization/26209
1691         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
1692         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
1693         eh edges.
1694         * tree-cfg.c (replace_uses_by): Do not alter cfg.
1695
1696 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1697
1698         PR middle-end/23670
1699         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
1700         (X,Y) and the corresponding symmetry related transformations.
1701         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
1702         (X,Y) and its symmetry related transformations.
1703
1704 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1705
1706         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
1707         and GEU.
1708
1709 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
1710
1711         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
1712
1713 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
1714
1715         PR bootstrap/26053
1716         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
1717         support COMDAT group.
1718         * configure: Regenerate.
1719
1720 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1721
1722         PR middle-end/26279
1723         PR middle-end/26280
1724         PR middle-end/26283
1725         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
1726
1727 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
1728
1729         Fix PR tree-optimization/26260
1730
1731         * doc/invoke.texi (max-fields-for-field-sensitive): Document
1732         param.
1733         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
1734         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
1735         * tree-ssa-structalias.c (create_variable_info_for): Use
1736         MAX_FIELDS_FOR_FIELD_SENSITIVE.
1737
1738 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
1739
1740         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
1741         Document.
1742         * tree-ssa-loop-niter.c (number_of_iterations_ne,
1743         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
1744         of the ending condition.
1745         * tree-ssa-loop-manip.c: Include params.h.
1746         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
1747         tree_unroll_loop): New functions.
1748         * tree-pass.h (pass_loop_prefetch): Declare.
1749         * loop.c (rest_of_handle_loop_optimize): Test for
1750         -fprefetch-loop-arrays-rtl.
1751         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
1752         * timevar.def (TV_TREE_PREFETCH): New timevar.
1753         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
1754         pass_loop_prefetch): New.
1755         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
1756         (cleanup_tree_cfg_loop): Call scev_reset.
1757         * common.opt (fprefetch-loop-arrays-rtl): Add.
1758         * tree-ssa-loop-prefetch.c: New file.
1759         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
1760         (new_temp_expr_table): Initialize expr_vars.
1761         (free_temp_expr_table): Cleanup expr_vars.
1762         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
1763         expressions from being merged into one.
1764         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
1765         (struct tree_niter_desc): Add control, bound and cmp fields.
1766         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
1767         Declare.
1768         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
1769         (tree-cfgcleanup.o): Add SCEV_H dependency.
1770         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
1771         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
1772
1773 2006-02-14  Richard Guenther  <rguenther@suse.de>
1774
1775         PR tree-optimization/26258
1776         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
1777         in PHI argument processing.
1778
1779 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
1780
1781         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
1782         new expression in the requested machine mode.
1783
1784 2006-02-13  Roger Sayle  <roger@eyesopen.com>
1785
1786         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
1787         directly, instead let do_compare_rtx_and_jump handle this for us.
1788         * expr.c (expand_expr_real_1): Likewise.
1789         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
1790         before do_jump_by_parts_greater.
1791         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
1792         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
1793
1794 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1795
1796         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
1797
1798 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
1799
1800         PR rtl-optimization/26235
1801         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
1802         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
1803         format.
1804
1805 2006-02-13  Jeff Law  <law@redhat.com>
1806
1807         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
1808         TRUTH_XOR_EPR.
1809
1810 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
1811
1812         PR middle-end/26092
1813         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
1814         twice if decl is a builtin.  When trying again, call get_callee_fndecl
1815         first to verify it is still a builtin.
1816
1817 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
1818
1819         * dwarf2out.c (base_type_die): Don't add AT_name here.
1820         (subrange_type_die): Don't add AT_name here.
1821         (modified_type_die): Rearrange code flow.  Do add AT_name here.
1822
1823 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
1824
1825         PR rtl-optimization/26247
1826         PR rtl-optimization/26248
1827         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
1828
1829 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
1830
1831         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
1832         * config/fixtfdi.c: Likewise.
1833         * config/fixunstfdi.c: Likewise.
1834         * config/floatditf.c: Likewise.
1835
1836 2006-02-13  Roger Sayle  <roger@eyesopen.com>
1837
1838         PR middle-end/24427
1839         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
1840         into (X,C2) if C1 is a subset of the bits of C2.  Transform
1841         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
1842         (X&(C1&~C2))|C2.
1843         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
1844
1845 2006-02-13  Josh Conner  <jconner@apple.com>
1846
1847         PR target/25376
1848         * varasm.c (function_section): Check for section name before
1849         calling select_section on targets that define
1850         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
1851         unlikely_text_section instead of hot_function_section if
1852         first_function_block_is_cold.
1853
1854 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
1855
1856         PR middle-end/25335
1857         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
1858
1859 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1860
1861         PR rtl-optimization/26222
1862         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
1863         after tree->rtl expansion.
1864         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
1865         before passing it to emit_move_insn.
1866
1867 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1868
1869         * doc/invoke.texi (-Write-strings): Document that it is enabled by
1870         default.
1871         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
1872         Clarify documentation.
1873         * c-common.h (warn_write_strings): Remove.
1874         * c-common.c (warn_write_strings): Likewise.
1875         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
1876         default for C++.
1877
1878 2006-02-12  Roger Sayle  <roger@eyesopen.com>
1879
1880         PR middle-end/25724
1881         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
1882         (do_jump_parts_zero_rtx): New function renamed from
1883         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
1884         (do_jump_parts_equality_rtx): New function split out from
1885         do_jump_parts_equality.  Old implementation renamed as above.
1886         Call do_jump_parts_zero_rtx if either operand is zero.
1887         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
1888         do all of the heavy lifting.
1889         (do_compare_rtx_and_jump): Handle multi-word comparisons by
1890         calling either do_jump_by_parts_greater_rtx or
1891         do_jump_by_parts_equality_rtx.
1892         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
1893         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
1894         moved to do_compare_rtx_and_jump, call it directly.
1895         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
1896         mode argument.  Call do_compare_rtx_and_jump.
1897         (emit_case_nodes): Update calls to do_jump_if_equal.
1898
1899 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1900
1901         PR rtl-optimization/26225
1902         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
1903
1904 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1905
1906         PR rtl-optimization/26232
1907         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
1908
1909 2006-02-11  Jason Merrill  <jason@redhat.com>
1910
1911         PR tree-opt/24365
1912         * tree-inline.c (declare_return_variable): Just don't use the
1913         modify target if it's a gimple complex reg and the return slot
1914         isn't.
1915
1916 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
1917
1918         * doc/contrib.texi: Update my entry.
1919
1920 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
1921
1922         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
1923
1924 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
1925
1926         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
1927         expensive.
1928
1929 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
1930
1931         * doc/invoke.texi (-floop-optimize2): Removed.
1932         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
1933         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
1934         Test flag_branch_on_count_reg only if HAVE_doloop_end.
1935         * common.opt (floop-optimize2): Removed.
1936         (fmove-loop-invariants): Enabled by default.
1937
1938 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
1939
1940         * tree-if-conv.c (combine_blocks): Free the result of
1941         get_loop_exit_edges.
1942
1943 2006-02-10  Jeff Law  <law@redhat.com>
1944
1945         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
1946
1947         PR tree-optimization/26213
1948         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
1949         loop trying to follow SSA_NAME_VALUE chains.
1950
1951 2006-02-10  Richard Guenther  <rguenther@suse.de>
1952
1953         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
1954         deal with structures that end in implicitly variable sized arrays.
1955
1956 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
1957
1958         PR rtl-optimization/24762
1959         * df-scan.c (df_bb_refs_record): Record correct registers defined on
1960         eh edges.
1961
1962 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
1963
1964         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
1965         (struct ivopts_data): Add regs_used field.
1966         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
1967         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
1968         instead of loop_data->regs_used;
1969         (free_loop_data): Do not free aux fields for loops.
1970         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
1971         and tree_ssa_iv_optimize_finalize.
1972
1973 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
1974
1975         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
1976
1977 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
1978
1979         PR target/26141
1980         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
1981         computing the effective result type.
1982
1983 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
1984
1985         PR inline-asm/16194
1986         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
1987         (tree_overlaps_hard_reg_set): Declare.
1988         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
1989         type and signature to match function type expected by walk_tree.
1990         (tree_overlaps_hard_reg_set): New function.
1991         (decl_conflicts_with_clobbers_p): Rename to:
1992         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
1993         Use tree_overlaps_hard_reg_set.  Changed caller.
1994         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
1995         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
1996         * cris.c (cris_md_asm_clobbers): Likewise.
1997
1998 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
1999
2000         * reload1.c (emit_input_reload_insns): Delete code that tries to
2001         inherit using find_equiv_reg.
2002
2003 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2004
2005         * c-common.h (flag_const_strings): Don't declare.
2006         * c-common.c (flag_const_strings): Remove.
2007         * c.opt (fconst_strings): Remove.
2008         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
2009         <OPT_Wwrite_strings>: Don't set flag_const_strings.
2010         (c_common_init_options): Don't set flag_const_strings.
2011         * doc/invoke.texi (-fno-const-strings): Remove documentation.
2012
2013 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
2014
2015         * arm.md (tlobits_cbranch): New pattern.
2016         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
2017         testing a single bit.
2018
2019 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2020
2021         PR tree-opt/26179
2022         * tree-ssa-pre.c (create_component_ref_by_pieces):
2023         Handle RETURN_DECL like VAR_DECL.
2024
2025 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2026
2027         PR middle-end/26134
2028         * fold-const.c (fold_indirect_ref_1): Fold
2029         "*(foo *)&complexfoo" to "__real__ complexfoo"
2030         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
2031
2032 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2033
2034         * tree-flow-inline.h (var_can_have_subvars):
2035         Volatile variables should not have subvariables.
2036
2037 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
2038
2039         PR 26180
2040         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
2041         multiplying unsigned values.
2042         Tidy comments.
2043
2044 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
2045
2046         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
2047
2048 2006-02-08  Jason Merrill  <jason@redhat.com>
2049
2050         PR c++/25979
2051         * tree.def: Elaborate on difference from MODIFY_EXPR.
2052         * doc/c-tree.texi (INIT_EXPR): Likewise.
2053         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
2054         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
2055         (gimplify_target_expr): Likewise.
2056         (gimplify_cond_expr): Remove target handling.
2057         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
2058         (gimplify_expr): Clobber it here.
2059         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
2060         Do return slot optimization if we have an INIT_EXPR.
2061
2062         PR tree-opt/24365
2063         * tree-inline.c (declare_return_variable): Also clear
2064         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
2065
2066         PR c++/16405
2067         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
2068
2069         PR middle-end/22439
2070         * gimplify.c (gimplify_one_sizepos): Fix typo.
2071
2072 2006-02-08  Jeff Law  <law@redhat.com>
2073
2074         PR tree-optimization/21417
2075         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
2076         across a backedge if the control statement at the end of the
2077         block is data dependent on other statements in the same block.
2078         (record_temporary_equivalences_from_stmts): Remove over-conservative
2079         test for threading across backedges.
2080
2081         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
2082         control statement, handle all three special cases in the same
2083         manner as they all have the same desired solution.  No longer
2084         special case edge flag updating when the post dominator is
2085         the exit block.
2086
2087 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2088
2089         * tree.def (CHAR_TYPE): Remove.
2090         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
2091         * dwarf2out.c (base_type_die, is_base_type): Likewise.
2092         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
2093         (gen_string_type_die): Delete unreachable function.
2094
2095         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
2096         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
2097         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
2098         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
2099         * builtins.c (type_to_class): Likewise.
2100         * fold-const.c (fold_convert, build_range_check,
2101         merge_ranges): Likewise.
2102         * expr.c (count_type_elements): Likewise.
2103         * c-pretty-print.c (pp_c_type_specifier): Likewise.
2104         * stor-layout.c (layout_type): Likewise.
2105         * ipa-type-escape.c (type_to_consider): Likewise.
2106         * gimplify.c (omp_firstprivatize_type_sizes,
2107         gimplify_type_sizes): Likewise.
2108         * explow.c (promote_mode): Likewise.
2109         * tree-sra.c (is_sra_scalar_type): Likewise.
2110         * varasm.c (output_constant): Likewise.
2111         * tree-inline.c (remap_type_1): Likewise.
2112         * convert.c (convert_to_pointer, convert_to_real,
2113         convert_to_integer, convert_to_complex): Likewise.
2114
2115 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
2116
2117         * df-scan.c (df_def_record_1): A set destination may
2118         be a parallel regardless of mode.
2119
2120 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2121
2122         PR target/22209
2123         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
2124         * config/mips/_tilib.c: Remove.
2125         * config/fixtfdi.c: New libgcc source file.
2126         * config/fixunstfdi.c: New source file.
2127         * config/floatditf.c: New source file.
2128         * config/floatunditf.c: New souce file.
2129         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
2130         files above instead of config/mips/_tilib.c.
2131         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
2132
2133 2006-02-08  Jeff Law  <law@redhat.com>
2134
2135         PR tree-optimization/26169
2136         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
2137         threading jumps.
2138
2139 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
2140
2141         * df.h (DF_REG_SIZE): Return the length of the initialized
2142         part of the array.
2143
2144 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
2145
2146         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
2147         __muldf3): Return a correctly signed zero.
2148
2149 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
2150
2151         * passes.c (register_one_dump_file): Accept the current properties
2152         instead of pass number.  Adjust call to dump_register.  Remove
2153         duplicated code.
2154         (register_dump_files): Now a wrapper around...
2155         (register_dump_files_1): ... this one.  Do not modify the pass
2156         structure.
2157         (next_pass_1): Cosmetic fix.
2158         (execute_todo): Keep second parameter only.  Use curr_properties
2159         instead of fetching it from the pass structure.  Check and set
2160         last_verified.
2161         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
2162         instead of fetching it from the pass structure.  Fix calls to
2163         execute_todo.  Update curr_properties and initialize .vcg RTL dump
2164         after running the pass.  Reset last_verified.
2165         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
2166         at the beginning.
2167         (FIRST_AUTO_NUMBERED_DUMP): New.
2168         (dump_register): Remove "num" parameter, assign it within the
2169         function.
2170         (get_dump_file_name): Modify template for dumps.
2171         * tree-dump.h (dump_register): Adjust prototype.
2172         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
2173         (PROP_trees): Add PROP_gimple_lomp.
2174         (TODO_set_props): New.
2175         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
2176         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
2177         * cfgexpand.c (pass_expand): Destroy PROP_trees.
2178
2179 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
2180
2181         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
2182         (sparc64-*-linux*): Likewise.
2183         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
2184         * config/sparc/t-linux: New file.
2185         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
2186         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
2187         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
2188         -m32 -mlong-double-128.
2189
2190         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
2191         * config/alpha/t-linux: New file.
2192         * config/alpha/libgcc-alpha-ldbl.ver: New file.
2193
2194         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
2195         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
2196         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
2197         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
2198         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
2199         (CPP_ARCH32_SPEC): Remove.
2200
2201 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
2202
2203         PR tree-optimization/26145
2204         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
2205         bbs pointer.
2206
2207 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2208
2209         PR target/26109
2210         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
2211         >= 240000 when generating code for SOM runtime.
2212         (output_indirect_call): Don't use "b,l" instruction for indirect calls
2213         to $$dyncall when generating code for SOM runtime..
2214
2215 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2216
2217         PR c++/18150
2218         * doc/invoke.texi (-Wsequence-point): Update documentation
2219         that -Wsequence-point is implemented for C++ as well.
2220
2221 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2222
2223         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
2224         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
2225         (LIB_SPEC): Likewise.
2226         * doc/invoke.texi (SPARC options): Document -pthread.
2227
2228 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
2229
2230         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
2231         PIC addresses.
2232
2233 2006-02-07  Roger Sayle  <roger@eyesopen.com>
2234
2235         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
2236         Correct comment describing BOOLEAN_TYPE.
2237
2238 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2239
2240         * c.opt: C++ frontend supports -Wdiv-by-zero.
2241         * c-opts.c (c_common_handle_option): Remove dead case.
2242
2243 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2244
2245         * configure.ac (TLS assembler check): Do not enable TLS by
2246         default on SPARC/Solaris before version 10.
2247         * configure: Regenerate.
2248
2249 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
2250
2251         * doc/invoke.texi (xl-compat): Document conversion and support
2252         routine names.
2253
2254 2006-02-07  Jeff Law  <law@redhat.com>
2255
2256         * tree-vrp.c (find_conditional_asserts): Update comments.
2257         (simplify_stmt_for_jump_threading): New.
2258         (identify_jump_threads, finalize_jump_threads): New.
2259         (vrp_finalize): Call identify_jump_threads.
2260         (execute_vrp): Call finalize_jump_threads.
2261         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
2262         (vrp_element, vrp_data, vrp_element_p): Remove.
2263         (vrp_hash_elt, vrp_variables_stack): Remove.
2264         (vrp_hash, vrp_eq, record_range): Remove.
2265         (simplify_cond_and_lookup_avail_expr): Remove.
2266         (extract_range_from_cond): Remove.
2267         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
2268         (simplify_stmt_for_jump_threading): New.
2269         (dom_thread_across_edge): New wrapper.
2270         (tree_ssa_dominator_optimize): No longer initialize or
2271         finalize any of the VRP datastructures.  Remove iteration
2272         step and simplify as a result of removal of iteration step.
2273         (pass_dominator): Perform a cfg cleanup after DOM.
2274         (dom_opt_finalize_block): Use the new common routines
2275         for threading jumps.  Simplify stack management slightly.
2276         No longer need to unwind VRP state.
2277         (record_equivalences_from_incoming_edge): No longer record
2278         VRP information.
2279         (eliminate_redundant_computations): No longer call
2280         simplify_cond_and_lookup_avail_expr.
2281         * tree-flow.h (potentially_threadable_block): Prototype.
2282         (thread_across_edge): Likewise.
2283         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
2284         (tree-ssa-threadedge.o): Add dependencies.
2285         * tree-ssa-threadedge.c: New file.
2286         * passes.c (init_optimization_passes): Merge PHIs before
2287         calling VRP.  Run VRP again late in the SSA optimization pipeline.
2288
2289 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2290
2291         * df-core.c (df_set_blocks): Do not dereference function pointers.
2292         (df_finish1): Likewise.
2293         (df_hybrid_search_forward): Likewise.
2294         (df_hybrid_search_backward): Likewise.
2295         (df_iterative_dataflow): Likewise.
2296         (df_analyze_problem): Likewise.
2297         (df_compact_blocks): Likewise.
2298         (df_dump): Likewise.
2299         * df-scan.c (df_rescan_blocks): Likewise.
2300         (df_record_entry_block_defs): Likewise.
2301
2302         * genconditions.c (write_conditions): Guard the definition of
2303         'insn_conditions' with the check on GCC version.
2304         (write_writer): Guard the traversal 'insn_conditions' with
2305         the check on GCC version.
2306
2307 2006-02-07  Richard Guenther  <rguenther@suse.de>
2308
2309         PR c++/26140
2310         Revert
2311         2006-01-30  Richard Guenther  <rguenther@suse.de>
2312         PR c++/23372
2313         * gimplify.c (gimplify_target_expr): Handle easy cases
2314         without creating a temporary.
2315
2316 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
2317
2318         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
2319         use of float in probability computations.  Use edge probabilities
2320         in place of statically computed probabilities.
2321         (min_spec_prob): New static variable.
2322         (schedule_insns): Initialize it.
2323         (GET_SRC_PROB): Removed.
2324         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
2325
2326 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
2327
2328         PR debug/24444
2329         * config/ia64/unwind-ia64.c: Revert last change.
2330         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
2331         (INCOMING_FRAME_SP_OFFSET): Define.
2332
2333 2006-02-06  Roger Sayle  <roger@eyesopen.com>
2334
2335         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
2336
2337 2006-02-07  Ben Elliston  <bje@au.ibm.com>
2338
2339         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
2340         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
2341         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
2342         (ix86_return_in_memory): Handle TDmode.
2343         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
2344         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
2345
2346 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
2347
2348         * reorg.c (dbr_schedule): Use dump_file instead of file.
2349
2350 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
2351
2352         PR target/25917
2353         * config/ia64/predicates.md (extr_len_operand): New predicate.
2354         * config/ia64/ia64.md (extv): Tighten constraints.
2355         (extzv): Ditto.
2356         (*tbit_and_2): Ditto.
2357         (*tbit_and_3): Ditto.
2358         (*tbit_or_2): Ditto.
2359         (*tbit_or_3): Ditto.
2360         (*bit_zero): Ditto.
2361         (*bit_one): Ditto.
2362
2363 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
2364
2365         PR target/23359
2366         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
2367
2368 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
2369
2370         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
2371         loop_optimizer_init and loop_optimizer_finalize
2372         * tree-ssa-sink.c (execute_sink_code): Ditto.
2373         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
2374         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
2375         tree_ssa_loop_done): Ditto.
2376         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
2377         * sched-ebb.c: Include output.h.
2378         (schedule_ebbs): Do not use dump argument.
2379         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
2380         * loop.c (loop_dump_stream): Removed.
2381         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
2382         argument.
2383         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
2384         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
2385         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
2386         loop_iterations, strength_reduce, record_biv, record_giv,
2387         final_giv_value, check_final_value, check_ext_dependent_givs,
2388         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
2389         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
2390         dump_file instead of loop_dump_stream.
2391         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
2392         argument dump_file.
2393         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
2394         dump argument.
2395         * flow.c (life_analysis, rest_of_handle_life): Ditto.
2396         * haifa-sched.c: Include output.h
2397         (schedule_insns, sched_init): Do not use dump argument.
2398         * mode-switching.c (optimize_mode_switching): Ditto.
2399         * modulo-sched.c (stats_file): Removed.
2400         (print_node_sched_params): Do not call argument dump_file.
2401         (sms_schedule_by_order, loop_canon_p, sms_schedule,
2402         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
2403         of stats_file.
2404         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
2405         use dump argument.
2406         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
2407         rtl_loop_init, rtl_loop_done): Ditto.
2408         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
2409         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
2410         Ditto.
2411         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
2412         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
2413         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
2414         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
2415         * emit-rtl.c (renumber_insns): Ditto.
2416         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
2417         expand_gimple_basic_block, tree_expand_cfg): Ditto.
2418         * regclass.c (regclass): Ditto.
2419         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
2420         remove_ssa_form, rewrite_out_of_ssa): Ditto.
2421         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
2422         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
2423         Ditto.
2424         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
2425         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
2426         to regclass.
2427         * gcse.c (gcse_file, debug_stderr): Removed.
2428         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
2429         rest_of_handle_gcse): Do not use dump argument.
2430         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
2431         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
2432         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
2433         compute_code_hoist_vbeinout, compute_code_hoist_data,
2434         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
2435         compute_store_table, build_store_vectors, insert_insn_start_bb,
2436         insert_store, remove_reachable_equiv_notes, replace_store_insn,
2437         store_motion): Use dump_file instead of gcse_file.
2438         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
2439         * profile.c (profile_dump_file): Removed.
2440         (branch_prob): Use dump_file instead of profile_dump_file.
2441         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
2442         dump_file.
2443         * tree-ssa-copy.c (dump_copy_of): Ditto.
2444         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
2445         dump file to life_analysis.
2446         * bt-load.c (branch_target_load_optimize): Ditto.
2447         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
2448         renumber_insns.
2449         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
2450         regclass, dbr_schedule): Declaration changed.
2451         * sched-int.h (sched_init): Declaration changed.
2452         * tree-profile.c (tree_profile_dump_file): Removed.
2453         (tree_profile_hooks): Removed profile_dump_file hook.
2454         * rtl-profile (rtl_profile_dump_file): Removed.
2455         (rtl_profile_hooks): emoved profile_dump_file hook.
2456         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
2457         changed.
2458         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
2459         * tree-cfg.c (build_tree_cfg): Ditto.
2460         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
2461         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
2462         Declaration changed.
2463         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
2464         life_analysis and schedule_insns.
2465         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
2466         life_analysis.
2467         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
2468         dbr_schedule.
2469         * config/mips/mips.c (mips_reorg): Ditto.
2470         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
2471         schedule_ebbs.
2472
2473 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
2474
2475         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2476         (s390_mangle_fundamental_type): New.
2477         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2478         Define.
2479
2480         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2481         (alpha_mangle_fundamental_type): New.
2482         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2483         Define.
2484
2485         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2486         Define.
2487         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2488         Define.
2489         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2490         (sparc_mangle_fundamental_type): New.
2491
2492 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
2493
2494         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
2495         (s390x-*-linux*): Likewise.
2496         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
2497         * config/s390/t-linux: New file.
2498
2499 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
2500
2501         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
2502         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
2503
2504 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
2505
2506         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
2507         (ANTIC_SAFE_LOADS): New macro.
2508         (find_or_generate_expression): Add prototype.
2509         (set_contains_value): Allow null set for sake of not always having
2510         to allocate ANTIC_SAFE_LOADS.
2511         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
2512         Allow COMPONENT_REF too.
2513         (valid_in_set): Allow COMPONENT_REF.
2514         Check ANTIC_SAFE_LOADS too.
2515         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
2516         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
2517         rename.
2518         (can_PRE_operation): Add COMPONENT_REF.
2519         (create_component_ref_by_pieces): New function.
2520         (create_expression_by_pieces): Use create_component_ref_by_pieces.
2521         (insert_aux): Move AGGREGATE_TYPE_P check here.
2522         (compute_avail): Set bb local stmt uids.
2523         (pass_pre): Use TODO_update_ssa_only_virtuals.
2524
2525 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2526
2527         * configure.ac: Unconditionally disable decimal float by default.
2528         * configure: Regenerate.
2529
2530 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2531
2532         * read-rtl.c (read_name): Terminate reading on EOF.
2533
2534 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2535
2536         * dfp.c (decimal_real_arithmetic): Change second argument type
2537         from int to enum tree_code. Do not always return true, but now
2538         return result of any call to decimal_do helper functions.
2539         * dfp.h (decimal_real_arithmetic): Update prototype.
2540
2541 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
2542
2543         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
2544
2545 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
2546
2547         PR tree-opt/25251
2548         * tree-cfg.c (cleanup_dead_labels): Also don't remove
2549         forced labels.
2550
2551 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2552
2553         * tree-vrp.c (cfg_loops): Removed.
2554         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
2555         Use current_loops instead of cfg_loops.  Pass flags to
2556         loop_optimizer_init.
2557         * cfgloopmanip.c (fix_loop_structure): Update only available
2558         information.
2559         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
2560         loop_optimizer_init.
2561         * modulo-sched.c (build_loops_structure): Removed.
2562         (sms_schedule): Use loop_optimizer_init.
2563         * loop-init.c (loop_optimizer_init): Use flags to determine
2564         which properties of loops to prepare.
2565         (rtl_loop_init): Pass flags to loop_optimizer_init.
2566         * tree-ssa-sink.c (execute_sink_code): Ditto.
2567         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
2568         * tree-ssa-pre.c (init_pre): Ditto.
2569         * cfgloop.h (LOOPS_NORMAL): New.
2570         (loop_optimizer_init): Declaration changed.
2571
2572 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2573
2574         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
2575         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
2576         pa/t-pa.
2577         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
2578         pa/t-pa.
2579         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
2580         pa/x-ada.
2581         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
2582         * pa/t-pa64: Delete quadlib.c rule.
2583         * pa/x-ada: Revert last change.
2584         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
2585
2586 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2587
2588         PR rtl-optimization/26087
2589         * rtlanal.c (canonicalize_condition): Do not cross basic block
2590         boundaries.
2591
2592 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
2593
2594         PR debug/24444
2595         * config/ia64/ia64.c: Include debug.h.
2596         (MAX_ARTIFICIAL_LABEL_BYTES): New.
2597         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
2598         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
2599         (process_epilogue, process_set, process_for_unwind_directive):
2600         Output unwind info only if requested.  Add CFA info if requested.
2601         Add new arguments as needed.  Adjust callers.
2602         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
2603         incorrect default.
2604         (DWARF2_FRAME_INFO): Define to zero.
2605         * config/ia64/unwind-ia64.c: Remove code that compensated for
2606         the CFA offset error fixed above.
2607         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
2608         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
2609         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
2610         -funwind-tables and -fexceptions to enable frame info.
2611         (dwarf2out_frame_init): Define initial CFA even if
2612         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
2613         DWARF2_UNWIND_INFO is nonzero, not just defined.
2614         (dwarf2out_frame_finish): Output non-EH call frame info only
2615         if DWARF2_FRAME_INFO is nonzero.
2616         (convert_cfa_to_loc_list,
2617         compute_frame_pointer_to_cfa_displacement): Define even if
2618         unwind info is not supported.
2619         (gen_subprogram_die): Use the above unconditionally.  Remove
2620         legacy alternate code.
2621         * toplev.c (compile_file): Compile in call to
2622         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
2623         (lang_dependent_init): Ditto for dwarf2out_frame_init.
2624
2625 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
2626             Jakub Jelinek  <jakub@redhat.com>
2627
2628         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
2629         IBM extended float format long double as "g" on powerpc*-linux.
2630
2631 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2632
2633         PR target/25926
2634         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
2635         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
2636
2637 2006-02-03  Jason Merrill  <jason@redhat.com>
2638
2639         PR c++/25979
2640         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
2641
2642         PR middle-end/25977
2643         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
2644         on the return slot if it's an NRV.
2645
2646 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
2647
2648         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
2649         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
2650         rewrite_use): Do not handle USE_OUTER.
2651         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
2652         add_iv_outer_candidates, may_replace_final_value,
2653         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
2654         (find_interesting_uses_op): Functionality of
2655         find_interesting_uses_outer_or_nonlin moved here.
2656         (find_interesting_uses_outside): Use find_interesting_uses_op.
2657
2658 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
2659
2660         PR target/25960
2661         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
2662
2663 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
2664             Ulrich Weigand  <uweigand@de.ibm.com>
2665
2666         PR target/25864
2667         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
2668         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
2669         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
2670         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
2671         and dxr fields.
2672         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
2673         (s390_rtx_costs): Use the new fields to calculate rtx costs.
2674         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
2675         Define secondary reloads for TFmode moves.
2676         (constant_modes): Add TFmode.
2677         (NR_C_MODES): Set to 8.
2678         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
2679         builtin define.
2680         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
2681         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
2682         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
2683         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
2684         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
2685         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
2686         (FPR mode macro): Add TFmode.
2687         (DSF mode macro): New.
2688         (<de>, <dee> mode attributes): Removed.
2689         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
2690         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
2691         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
2692         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
2693         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
2694         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
2695         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
2696         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
2697         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
2698         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
2699         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
2700         "*negabs<mode>2", "sqrt<mode>2"):
2701         Changed <de> to <xde>. R constraint replaced by <Rf>.
2702         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
2703         <Rf>.
2704         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
2705         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
2706         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
2707         splitters.
2708         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
2709         "extenddftf2", "extendsftf2"): New expanders.
2710         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
2711         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
2712         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
2713         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
2714         New options.
2715         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
2716         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
2717         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
2718         __floatditf): Add a GCC_4.1.0 symbol version tag.
2719         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
2720         the new options.
2721
2722 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
2723
2724         PR target/25377
2725         * config/i386/i386.c (ix86_function_ok_for_sibcall):
2726         Use targetm.binds_local_p instead of TREE_PUBLIC.
2727
2728 2006-02-02  Roger Sayle  <roger@eyesopen.com>
2729
2730         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
2731         on INTEGER_TYPEs to indicate that it denotes a character type.
2732         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
2733         signed_char_type_node, unsigned_char_type_node and char_type_node.
2734         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
2735         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
2736         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
2737
2738 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
2739             Daniel Berlin  <dberlin@dberlin.org>
2740
2741         * tree-tailcall.c (arg_needs_copy_p): New function.
2742         (eliminate_tail_call): Use arg_needs_copy_p.
2743         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
2744         (add_virtual_phis): New function.
2745
2746 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
2747
2748         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
2749         #ignore instead of #scratch for %g7 .register directive.
2750
2751 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
2752
2753         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
2754         object files.
2755
2756 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
2757
2758         * flow.c (calculate_global_regs_live): Assert that there aren't any
2759         EDGE_FAKE edges.
2760
2761 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
2762
2763         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
2764         what its name says.
2765         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
2766         bsi_after_labels iterator.
2767         * tree-if-conv.c (find_phi_replacement_condition,
2768         replace_phi_with_cond_modify_expr): Likewise.
2769         * tree-scalar-evolution.c (scev_const_prop): Likewise.
2770         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
2771
2772 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
2773
2774         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
2775
2776 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
2777
2778         PR 25990
2779         * tree-cfg.c (move_block_to_fn): Clear out the basic block
2780         array after growing it.
2781
2782 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
2783
2784         PR middle-end/24901
2785         * fold-const.c (fold_checksum_tree): Change type of buf.
2786
2787 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
2788
2789         * reload.c (push_secondary_reload): Initialize t_icode.
2790
2791 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
2792
2793         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
2794         -msoft-float -mlong-double-128 only issue a warning, but don't
2795         swich to DFmode long double.
2796
2797 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
2798
2799         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
2800         has a constant equivalent, iterate over equivalents for arg0,
2801         calling simplify_relational_operation and if there's a result
2802         cheaper than X, apply fold_rtx and return the result.
2803
2804 2006-02-01  Jan Hubicka  <jh@suse.cz>
2805
2806         * opts.c (no_unit_at_a_time_default): New global variable.
2807         (decode_options): Use it.
2808         * opts.h (no_unit_at_a_time_default): Declare.
2809
2810 2006-02-01  Paul Brook  <paul@codesourcery.com>
2811
2812         * function.c (assign_parm_setup_reg): Use function argument promotion
2813         rules.
2814         * expr.c (expand_expr_real_1): Use function argument promotion rules
2815         for PARM_DECLs.
2816
2817 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
2818
2819         * gcc.c (process_command): Change j to 'unsigned int'.
2820
2821 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
2822
2823         PR middle-end/26001
2824         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
2825         Use the corrected index for the character
2826         out of the string constant.
2827
2828 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
2829
2830         * mode-switching.c (optimize_mode_switching): Fix size
2831         allocated for bb_info[n_entities].
2832
2833 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
2834
2835         * gcc.c (main): Correct type that is allocated for
2836         explicit_link_files.
2837
2838 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
2839
2840         * config/s390/s390.c (init_alignment_context): Set
2841         ALIAS_SET_MEMORY_BARRIER on the MEM.
2842         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
2843
2844 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
2845
2846         PR middle-end/25933
2847         * loop-unroll.c (unroll_loop_runtime_iterations): Free
2848         dom_bbs pointer.
2849         * tree-ssa-live.c (type_var_init): Allocate bitmap after
2850         call to tpa_init.
2851
2852 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
2853
2854         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
2855         * regrename.c: Ditto.
2856         * tree-ssa-loop-im.c: Ditto.
2857         * tree-dump.c: Ditto.
2858         * tree-complex.c: Ditto.
2859         * genrecog.c: Ditto.
2860         * tree-ssa-threadupdate.c: Ditto.
2861         * tracer.c: Ditto.
2862         * java/class.c: Ditto.
2863         * java/jcf-parse.c: Ditto.
2864         * java/resource.c: Ditto.
2865         * java/except.c: Ditto.
2866         * java/jvspec.c: Ditto.
2867         * java/jcf-write.c: Ditto.
2868         * java/jcf-path.c: Ditto.
2869         * java/gjavah.c: Ditto.
2870         * java/zextract.c: Ditto.
2871         * java/jcf-io.c: Ditto.
2872         * java/jcf.h: Ditto.
2873         * java/buffer.c: Ditto.
2874         * java/lang.c: Ditto.
2875         * java/parse-scan.y: Ditto.
2876         * java/lex.c: Ditto.
2877         * java/lex.h: Ditto.
2878         * cfgloopmanip.c: Ditto.
2879         * postreload-gcse.c: Ditto.
2880         * tree-ssa-loop-manip.c: Ditto.
2881         * postreload.c: Ditto.
2882         * tree-ssa-loop-ch.c: Ditto.
2883         * loop.c: Ditto.
2884         * ipa-cp.c: Ditto.
2885         * cppspec.c: Ditto.
2886         * diagnostic.c: Ditto.
2887         * final.c: Ditto.
2888         * genoutput.c: Ditto.
2889         * gcc.c: Ditto.
2890         * cfghooks.c: Ditto.
2891         * cfgloopanal.c: Ditto.
2892         * objc/objc-act.c: Ditto.
2893         * gcov.c: Ditto.
2894         * genextract.c: Ditto.
2895         * genautomata.c: Ditto.
2896         * pretty-print.c: Ditto.
2897         * genemit.c: Ditto.
2898         * cgraphunit.c: Ditto.
2899         * flow.c: Ditto.
2900         * df-scan.c: Ditto.
2901         * haifa-sched.c: Ditto.
2902         * dominance.c: Ditto.
2903         * dbxout.c: Ditto.
2904         * tree-ssa-loop-ivopts.c: Ditto.
2905         * df-core.c: Ditto.
2906         * mode-switching.c: Ditto.
2907         * modulo-sched.c: Ditto.
2908         * graph.c: Ditto.
2909         * ipa-pure-const.c: Ditto.
2910         * cse.c: Ditto.
2911         * fix-header.c: Ditto.
2912         * web.c: Ditto.
2913         * tree-stdarg.c: Ditto.
2914         * ipa-utils.c: Ditto.
2915         * loop-init.c: Ditto.
2916         * ipa-inline.c: Ditto.
2917         * cfganal.c: Ditto.
2918         * global.c: Ditto.
2919         * alloc-pool.c: Ditto.
2920         * dwarf2out.c: Ditto.
2921         * opts.c: Ditto.
2922         * genattrtab.c: Ditto.
2923         * tree-ssa-loop-ivcanon.c: Ditto.
2924         * predict.c: Ditto.
2925         * timevar.c: Ditto.
2926         * lcm.c: Ditto.
2927         * fortran/gfortranspec.c: Ditto.
2928         * regmove.c: Ditto.
2929         * local-alloc.c: Ditto.
2930         * langhooks.c: Ditto.
2931         * function.c: Ditto.
2932         * tree-vectorizer.c: Ditto.
2933         * gcse.c: Ditto.
2934         * ipa-type-escape.c: Ditto.
2935         * alias.c: Ditto.
2936         * tree-if-conv.c: Ditto.
2937         * profile.c: Ditto.
2938         * ipa.c: Ditto.
2939         * tree-data-ref.c: Ditto.
2940         * loop-unroll.c: Ditto.
2941         * treelang/treetree.c: Ditto.
2942         * calls.c: Ditto.
2943         * bt-load.c: Ditto.
2944         * ggc-common.c: Ditto.
2945         * except.c: Ditto.
2946         * coverage.c: Ditto.
2947         * cselib.c: Ditto.
2948         * tree-cfgcleanup.c: Ditto.
2949         * tree-ssa-pre.c: Ditto.
2950         * cfgcleanup.c: Ditto.
2951         * loop-invariant.c: Ditto.
2952         * loop-iv.c: Ditto.
2953         * ipa-prop.c: Ditto.
2954         * print-tree.c: Ditto.
2955         * conflict.c: Ditto.
2956         * ggc-page.c: Ditto.
2957         * sched-deps.c: Ditto.
2958         * regclass.c: Ditto.
2959         * tree-object-size.c: Ditto.
2960         * combine.c: Ditto.
2961         * bb-reorder.c: Ditto.
2962         * resource.c: Ditto.
2963         * var-tracking.c: Ditto.
2964         * cfgloop.c: Ditto.
2965         * df-problems.c: Ditto.
2966         * reg-stack.c: Ditto.
2967         * tlink.c: Ditto.
2968         * gccspec.c: Ditto.
2969         * sched-rgn.c: Ditto.
2970         * tree-ssa-structalias.c: Ditto.
2971         * tree-ssa-reassoc.c: Ditto.
2972         * config/darwin-c.c: Ditto.
2973         * config/darwin.c: Ditto.
2974         * config/arm/arm.c: Ditto.
2975         * cfgrtl.c: Ditto.
2976         * collect2.c: Ditto.
2977         * reload1.c: Ditto.
2978
2979 2006-01-31  Nicolas Pitre  <nico@cam.org>
2980
2981         * arm.md (smaxsi3): Make aware of smax_m1.
2982         (smax_m1): New.
2983
2984 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
2985
2986         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
2987
2988 2006-01-31  Richard Guenther  <rguenther@suse.de>
2989
2990         * doc/invoke.texi (-msselibm): Document.
2991         * target.h (expand_library_builtin): New target hook.
2992         * builtins.c (expand_builtin): Use expand_library_builtin.
2993         (default_expand_library_builtin): New function.
2994         * gcc.c (LINK_GCC_MATH_SPEC): Define.
2995         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
2996         (link_gcc_math_spec): Declare.
2997         (static_specs): Add link_gcc_math_spec.
2998         * expr.h (default_expand_library_builtin): Declare.
2999         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3000         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
3001         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
3002         * config/i386/i386.opt (msselibm): New target option.
3003         * config/i386/i386.c (ix86_builtin_function_variants): New array.
3004         (ix86_init_sse_abi_builtins): New function.
3005         (ix86_expand_library_builtin): Likewise.
3006         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3007         (override_options): Handle error conditions wrt -msselibm.
3008         (ix86_builtins): Add function codes for SSE2 ABI builtins.
3009         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
3010         * doc/extend.texi (__builtin_sse2_*): Document new target specific
3011         builtins.
3012
3013 2006-01-31  Richard Guenther  <rguenther@suse.de>
3014         Paolo Bonzini  <bonzini@gnu.org>
3015
3016         * doc/install.texi (--disable-libgcc-math): Document.
3017
3018 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
3019
3020         * expr.h (expand_normal): new inline function.
3021         * builtins.c: use it, use EXPAND_NORMAL explicitely.
3022         * dojump.c: use it.
3023         * dwarf2out.c: use it.
3024         * expr.c: use it.
3025         * calls.c: use it.
3026         * expmed.c: use it.
3027         * except.c: use it.
3028         * config/sparc/sparc.c: use it.
3029         * config/i386/i386.c: use it.
3030         * config/rs6000/rs6000.c: use it.
3031         * config/arm/arm.c: use it.
3032         * config/mips/mips.c: use it.
3033         * stmt.c: use it, use EXPAND_NORMAL explicitely.
3034
3035 2006-01-30  Roger Sayle  <roger@eyesopen.com>
3036
3037         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
3038         argv to the appropriate type.
3039
3040 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
3041
3042         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
3043         unreachable code.
3044
3045 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
3046
3047         PR target/26018
3048         * config/s390/s390.c (struct machine_function): New flag
3049         decomposed_literal_pool_addresses_ok_p.
3050         (s390_reorg): Set it before final stage of literal pool transforms.
3051         (s390_decompose_address): Only accept displacements of the form
3052         (minus (label_ref ...) (label_ref ...)) if that flag is set.
3053
3054 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
3055
3056         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
3057         the comparison routine return.
3058
3059 2006-01-30  Michael Matz  <matz@suse.de>
3060
3061         * global.c (find_reg): Only evict for global regs.
3062         Take n_refs into account and dump more info.
3063
3064 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
3065
3066         PR target/14798:
3067         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
3068         (pragma_trap, pragma_nosave_low_regs): Likewise.
3069         (current_function_anonymous_args): Likewise.
3070         (sh_deferred_function_attributes): New variable.
3071         (sh_deferred_function_attributes_tail): Likewise.
3072         (print_operand): For '@', look up trap_exit attribute.
3073         (calc_live_regs): Look up trapa_handler attribute.  For trapa
3074         handlers, save/restore fpscr, but don't do any other
3075         interrupt-specific saves.
3076         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
3077         Fix check for partially saved registers to check for SHmedia.
3078         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
3079         (sh_output_function_epilogue): Don't clear any of the removed
3080         variables.
3081         (sh_insert_attributes): Don't check pragma_interrupt.
3082         Insert deferred attributes.  Check that interrupt attribute is
3083         present for other attributes that require its presence.
3084         (sh_attribute_table): Add new attributes trapa_handler and
3085         nosave_low_regs.
3086         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
3087         Don't check for pragma_interrupt.  Don't store argument.
3088         * sh.h (pragma_interrupt, sp_switch): Don't declare.
3089         (sh_deferred_function_attributes): Declare.
3090         (sh_deferred_function_attributes_tail): Likewise.
3091         * sh.md (sp_switch_1): Add operand.  Change generator caller.
3092         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
3093         (*return_i): Don't use when trap_exit attribute is in effect.
3094         (*return_trapa): New insn pattern.
3095         * sh-c.c: New file.
3096         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
3097         setting c_target_objs and cxx_target_objs.
3098         * t-sh: Add rule for sh-c.o.
3099
3100 2006-01-30  Richard Guenther  <rguenther@suse.de>
3101
3102         PR c++/23372
3103         * gimplify.c (gimplify_target_expr): Handle easy cases
3104         without creating a temporary.
3105
3106 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
3107
3108         * vec.h (safe_grow): Remove duplicated line.
3109
3110 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
3111
3112         PR 25874
3113         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
3114         (expand_omp): ... here.
3115         (expand_omp_parallel): Only remove barriers for combined
3116         parallel+workshare constructs.
3117
3118 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
3119
3120         Revert
3121
3122         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
3123         * tree.c (build_qualified_type): Chain the new type to the original
3124         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
3125         a POINTER_TYPE or a REFERENCE_TYPE respectively.
3126         (build_pointer_type_for_mode): Only return unqualified types.
3127         (build_reference_type_for_mode): Likewise.
3128
3129 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
3130
3131         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
3132         * Makefile.in (CXX_COMPAT_WARN): Define.
3133         * configure: Regenerate.
3134
3135 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
3136
3137         PR tree-opt/25911
3138         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
3139         to an if check.
3140
3141 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3142
3143         * toplev.c: Fix thinko.
3144
3145 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3146             Marcin Dalecki  <martin@dalecki.de>
3147
3148         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
3149         (push_srcloc): Use XNEW.
3150         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
3151
3152 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
3153
3154         * df-core.c (df_set_blocks): Deleted all variable.
3155
3156 2006-01-28  Ian Lance Taylor  <ian@airs.com>
3157
3158         * cgraphunit.c (cgraph_assemble_pending_functions): Call
3159         cgraph_output_pending_asms.
3160
3161 2006-01-28  Zack Weinberg  <zackw@panix.com>
3162
3163         * c.opt: Add -W(no-)overlength-strings.
3164         * doc/invoke.texi: Document it.
3165         * c-opts.c (c_common_handle_option): -pedantic implies
3166         -Woverlength-strings, if not explicitly disabled already.
3167         (c_common_post_options): -Woverlength-strings defaults to off, and
3168         is always off for C++.
3169         * c-common.c (fix_string_type): Issue warning about strings longer
3170         than is portable only if warn_overlength_strings.  Rearrange code
3171         a little for clarity.
3172         * configure.in: Check for -Wno-overlength-strings as well before
3173         enabling -pedantic in stage 1.
3174         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
3175         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
3176
3177         * genconditions.c (write_header, write_one_condition)
3178         (write_conditions, write_writer): Consolidate very long strings
3179         that were broken up to fit in C89 portable limit.  Don't use
3180         printf when fputs will do.
3181
3182 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
3183
3184         * combine.c (simplify_comparison <AND>): Check
3185         TRULY_NOOP_TRUNCATION before start using a subreg.
3186
3187         * config/mips/mips.md (*branch_zero<mode>,
3188         *branch_zero<mode>_inverted, *branch_equality<mode>,
3189         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
3190         Remove mode check from comparisons.
3191
3192 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
3193
3194         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
3195
3196 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
3197
3198         * expmed.c (const_mult_add_overflow_p): Remove.
3199         * expr.h: Remove the prototype for const_mult_add_overflow_p.
3200
3201         * recog.c (validate_replace_rtx_subexp): Remove.
3202         * recog.h: Remove the prototype for
3203         validate_replace_rtx_subexp.
3204
3205         * integrate.h: Remove the prototype for
3206         copy_decl_for_inlining.
3207         * rtl.h: Remove the prototype for mark_constant_function.
3208         * tree-vectorizer.h: Remove the prototype for
3209         vect_strip_conversion.
3210
3211         * modulo-sched.c (create_partial_schedule,
3212         free_partial_schedule, reset_partial_schedule): Make them
3213         static.
3214
3215         * hooks.c (hook_bool_rtx_int_false): Remove.
3216         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
3217
3218 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
3219
3220         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
3221         and -mlong-double-128 are incompatible.
3222         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
3223         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
3224         (TARGET_LIBGCC2_CFLAGS): Define.
3225         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
3226         (TARGET_LIBGCC2_CFLAGS): Same.
3227         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
3228
3229 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
3230
3231         PR c/19606.
3232         * c-typeck.c (build_binary_op): Perform implicit casts of
3233         operands before shortening them.
3234
3235         * cfgloopmanip.c (split_loop_bb): Remove.
3236         * cfgloop.h: Remove the prototype for split_loop_bb.
3237
3238         * cfgloop.c (flow_loop_outside_edge_p): Remove.
3239         * cfgloop.h: Remove the prototype for
3240         flow_loop_outside_edge_p.
3241
3242         * emit-rtl.c (init_virtual_regs): Make it static.
3243         * function.h: Remove the prototype for init_virtual_regs.
3244
3245         * recog.c (peephole2_optimize): Make it static.
3246         * recog.h: Remove the prototype for peephole2_optimize.
3247
3248 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
3249
3250         * df-scan.c (df_record_entry_block_defs): Check if
3251         INCOMING_RETURN_ADDR_RTX is defined.
3252
3253 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
3254             Kenneth Zadeck <zadeck@naturalbridge.com>
3255
3256         PR rtl-optimization/24762
3257         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
3258         * targhooks.c (hook_void_bitmap): New hook prototype.
3259         * targhoohs.h (hook_void_bitmap): Ditto.
3260         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
3261         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
3262         * target.h (live_on_entry): New function pointer.
3263         * df-scan.c (df_all_hard_regs): Removed.
3264         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
3265         (df_scan_free_internal): Added df->entry_block_defs.
3266         (df_scan_alloc): Ditto.
3267         (df_scan_dump): Ditto.
3268         (df_uses_record): Plumbed flag field properly thru calls.
3269         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
3270         This part fixes PR24762.
3271         (df_bb_refs_record): Added code to make the frame and arg
3272         pointers live in EH blocks.
3273         (df_refs_record): Added call to df_record_entry_block_defs.
3274         (df_record_entry_block_defs): New function.
3275         * df-core.c: Added comments to describe new artifical defs.
3276         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
3277         (entry_block_defs): New field in struct df.
3278         (df_all_hard_regs): Deleted.
3279         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
3280         * df-problems.c (df_ru_bb_local_compute_process_def):
3281         Added code to handle artifical defs in the entry to a function.
3282         (df_ru_bb_local_compute): Ditto.
3283         (df_rd_bb_local_compute_process_def):  Ditto.
3284         (df_rd_bb_local_compute): Ditto.
3285         (df_lr_bb_local_compute): Ditto.
3286         (df_ur_bb_local_compute): Ditto.
3287         (df_urec_bb_local_compute):  Ditto.
3288         (df_chain_create_bb):  Ditto.
3289         (df_ur_local_finalize): Removed entry.
3290         (df_urec_init): Ditto.
3291         (df_urec_local_finalize): Ditto.
3292         (df_ri_bb_compute): Added detection of last use of pseudos.
3293         * Makefile.in (df-scan.o): Updated dependencies.
3294         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
3295         * config/mips/mips.c (mips_set_live_on_entry): Added.
3296         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
3297         for target hook.
3298         * dce.c (marked_insn_p): Added code to handle artifical defs.
3299
3300 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
3301
3302         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
3303         intrinsic.
3304         (_mm_cvtsi128_si64): Likewise.
3305         (_mm_cvtsd_si64): Likewise.
3306         (_mm_cvttsd_si64): Likewise.
3307         (_mm_cvtsi64_sd): Likewise.
3308         (_mm_cvtsi64_si128): Likewise.
3309         * config/i386/mmintrin.h (_m_from_int64): Likewise.
3310         (_mm_cvtsi64_m64): Likewise.
3311         (_m_to_int64): Likewise.
3312         (_mm_cvtm64_si64): Likewise.
3313         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
3314         (_mm_cvttss_si64): Likewise.
3315         (_mm_cvtsi64_ss): Likewise.
3316         (_mm_cvtss_f32): Likewise.
3317
3318 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
3319
3320         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
3321         for pragma redefine_extname.
3322
3323 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
3324
3325         PR target/25864
3326         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
3327         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
3328         -mno-minimal-toc to previous content.
3329         (bispecs): Remove goal.
3330         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
3331         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
3332         compatibility aliases on powerpc-*-*gnu*.
3333         * config/rs6000/libgcc-ppc-glibc.ver: New file.
3334         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
3335         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
3336         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
3337         (ldblspecs): New goal.
3338         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
3339         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
3340         _df_to_tf.
3341         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
3342         L_sf_to_tf or L_df_to_tf is defined.
3343
3344 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
3345             Alan Modra  <amodra@bigpond.net.au>
3346
3347         PR target/25864
3348         * config/rs6000/linux.h (POWERPC_LINUX): Define.
3349         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
3350         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
3351         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
3352         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
3353         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
3354         (rs6000_override_options): Initialize rs6000_ieeequad.
3355         Initialize TFmode format to ibm_extended_format if not
3356         TARGET_IEEEQUAD.
3357         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
3358         ieeelongdouble.
3359         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
3360         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
3361         (function_arg_advance): IBM long double passed in two FPRs, not
3362         split.
3363         (function_arg): IBM long double passed in FPRs.
3364         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
3365         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
3366         Only multireg GPR aligned.
3367         (rs6000_init_libfuncs): Enable IBM long double functions if not
3368         IEEEQUAD.
3369         (rs6000_generate_compare): Use IBM long double compare if not
3370         TARGET_IEEEQUAD.
3371         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
3372         (TARGET_IEEEQUAD): Define.
3373         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
3374         not TARGET_IEEEQUAD.
3375         * config/rs6000/rs6000.md: Enable TFmode patterns if
3376         !TARGET_IEEEQUAD.
3377         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
3378         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
3379         and -mlong-double-128 are incompatible.
3380         * doc/invoke.texi (-mabi): Collect options together.  Add
3381         ibmlongdouble and ieeelongdouble.
3382
3383 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
3384
3385         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
3386         opaque type.
3387         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
3388         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
3389         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
3390         * rtl.h (rtunion_def): Remove rt_ptr.
3391         (X0PTR): Delete.
3392         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
3393         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
3394         * config/i386/winnt.c (i386_pe_mark_dllexport)
3395         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
3396
3397 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
3398
3399         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
3400
3401 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
3402
3403         PR other/24829
3404         PR target/24831
3405         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
3406         pthread_key_delete.  From John David Anglin.  gthrw-ify
3407         pthread_getunique_np only if it it's not a macro.  Delete
3408         UNUSED macro.
3409         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
3410         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
3411         __gthread_objc_condition_signal, __gthread_key_delete): Add
3412         "__attribute__ ((__unused__))" to unused arguments.
3413         (__gthread_recursive_mutex_init_function): Add missing return.
3414         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
3415         gthr-posix95.h: Use macro-based approach for name redirection
3416         on targets missing weakref.
3417
3418 2006-01-26  Zack Weinberg  <zackw@panix.com>
3419
3420         * genconditions.c (write_header): In generated code, #ifdef out
3421         all includes and fake declarations, except includes of bconfig.h
3422         and system.h, unless GCC_VERSION >= 3001.  Do not include
3423         gensupport.h in any case.
3424         (write_conditions): Generate a definition of struct c_test.  Add
3425         a comment to the generated #endif.
3426         (write_one_condition): Escape backslashes in string too.
3427         (write_writer): Generated code must escape backslashes and quote
3428         marks (but not newlines) in the strings it writes.
3429         * Makefile.in (build/gencondmd.o): Update dependencies.
3430
3431 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
3432
3433         PR target/25961
3434         * Makefile.in (insn-automata.o): Add header file dependencies.
3435         * genautomata.c: Add includes.
3436
3437 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
3438
3439         PR target/25961
3440         * Makefile.in (insn-automata.o): Add -Wno-error flag.
3441
3442 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
3443
3444         * configure.ac: Expect target tools paths to be passed from the toplevel
3445         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
3446         AS_SET_VAR_IF.
3447         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
3448
3449 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
3450
3451         PR c/25892
3452         * c.opt (Wpointer-sign): Init to -1.
3453         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
3454         OPT_pedantic, to 0 otherwise.
3455         * doc/invoke.texi: Update.
3456
3457 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
3458
3459         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
3460         constants provided by 80387 instructions in the destination mode.
3461
3462 2006-01-26  Richard Guenther  <rguenther@suse.de>
3463             Andrew Pinski  <pinskia@physics.uc.edu>
3464
3465         PR tree-opt/21470
3466         partial PR tree-opt/17064
3467         * tree-ssa-structalias.c (intra_create_variable_infos):
3468         Create heap variables for incoming parameters if
3469         flag_argument_noalias > 1.
3470         (find_what_p_points_to): Look through default defs of
3471         parameter decls.
3472
3473 2006-01-26  Jeff Law  <law@redhat.com>
3474
3475         PR ada/25900
3476         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
3477         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
3478         within the VR_RANGE, use the VR_RANGE as the result, not the
3479         VR_ANTI_RANGE.
3480         (adjust_range_with_scev): Reject ranges from SCEV which are out of
3481         bounds for the type.
3482
3483 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
3484
3485         * tree-ssa-alias.c (maybe_create_global_var): Change
3486         subvar walking to an assertion that we don't have subvar'd variables.
3487
3488 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
3489
3490         PR C/25861
3491         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
3492         Use a new variable, inner.  PARM_DECLs are always non-weak.
3493
3494 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
3495
3496         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
3497         --disable-checking.
3498
3499 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
3500
3501         * config/mips/mips.md (*clear_upper32): New combiner pattern.
3502
3503 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
3504
3505         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
3506         (smax_insn, smin_insn, smax_0, smin_0): New.
3507
3508 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
3509
3510         PR target/25947
3511         * config/cris/cris.c (cris_order_for_addsi3): New function.
3512         * config/cris/cris-protos.h: Prototype it.
3513         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
3514         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
3515         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
3516         (split for "op.S1 [rx=rx+i],ry (swapped)")
3517         (split for "op(s|u).S1 [rx=rx+i],ry")
3518         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
3519         Apply cris_order_for_addsi3 when generating addsi3 insns.
3520
3521 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
3522
3523         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
3524         (TREE_BLOCK): Add call to EXPR_CHECK.
3525
3526 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
3527
3528         PR 25886
3529         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
3530         * tree-pretty-print.c (dump_omp_clause): Extract from ...
3531         (dump_omp_clauses): ... here.
3532         (dump_generic_node): Handle OMP_CLAUSE.
3533         * tree.c (omp_clause_num_ops): New.
3534         (omp_clause_code_name): New.
3535         (tree_code_size): Handle OMP_CLAUSE.
3536         (tree_size): Likewise.
3537         (make_node): Document handling of OMP_CLAUSE.
3538         (tree_node_structure): Handle OMP_CLAUSE.
3539         (omp_clause_check_failed): New.
3540         (omp_clause_range_check_failed): New.
3541         (omp_clause_operand_check_failed): New.
3542         (build_omp_clause): New.
3543         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
3544         * tree.h (enum omp_clause_code): Declare.
3545         (OMP_CLAUSE_SUBCODE_CHECK): Define.
3546         (OMP_CLAUSE_RANGE_CHECK): Define.
3547         (OMP_CLAUSE_ELT_CHECK): Define.
3548         (omp_clause_check_failed): Declare.
3549         (omp_clause_operand_check_failed): Declare.
3550         (omp_clause_range_check_failed): Declare.
3551         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
3552         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
3553         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
3554         (OMP_CLAUSE_LASTPRIVATE): Likewise.
3555         (OMP_CLAUSE_IF_EXPR): Likewise.
3556         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
3557         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
3558         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
3559         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
3560         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
3561         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
3562         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
3563         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
3564         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
3565         (OMP_CLAUSE_CODE): Define.
3566         (OMP_CLAUSE_SET_CODE): Define.
3567         (OMP_CLAUSE_CODE): Define.
3568         (OMP_CLAUSE_OPERAND): Define.
3569         (struct tree_omp_clause): Declare.
3570         (union tree_node): Add field 'omp_clause'.
3571         * treestruct.def (TS_OMP_CLAUSE): Define.
3572         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
3573         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
3574         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
3575         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
3576         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
3577         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
3578         (OMP_CLAUSE): Define.
3579         * print-tree.c (print_node): Handle OMP_CLAUSE.
3580         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
3581         * c-typeck.c: Likewise.
3582         * gimplify.c: Likewise.
3583         * c-omp.c: Likewise.
3584         * tree-nested.c: Likewise.
3585         * tree-inline.c: Likewise.
3586         * c-parser.c: Likewise.
3587         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
3588         clauses.
3589
3590 2006-01-25  Roger Sayle  <roger@eyesopen.com>
3591
3592         PR rtl-optimization/25703
3593         * combine.c (try_combine): Handle zero_extract and strict_low_part
3594         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
3595
3596 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
3597
3598         * global.c: Fix comment typos.
3599
3600 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
3601
3602         PR target/25758
3603         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
3604         Use output_addr_const instead of assemble_name.
3605
3606 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
3607
3608         * Makefile.in (sched-vis.o): Update dependencies.
3609         * haifa-sched.c (sched_finish): Clear current_sched_info.
3610         * cfg.c (dump_bb_info): New, split from dump_flow_info.
3611         (dump_flow_info): Call it.
3612         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
3613         a slim RTL dump.
3614         * basic-block.h (dump_bb_info): Declare.
3615         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
3616         option, and apply options only for dump files whose TDF_RTL,
3617         TDF_TREE, or TDF_IPA bits match.
3618         * rtl.h: Declare new functions exported from sched-vis.c.
3619         * sched-vis.c: Enable also if scheduling is not used.
3620         (print_value): Print the mode of registers if not inside scheduling.
3621         (print_insn): Make it work outside the scheduler.  Beautify the output
3622         a bit.
3623         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
3624
3625 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
3626
3627         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
3628         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
3629         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
3630         depending on the value of CONSTANT_POOL_ADDRESS_P.
3631         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
3632         SYMBOL_REF_DECL.
3633         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
3634         rather than SYMBOL_REF_DECL.
3635         (rtx_constant_pool): Remove const_rtx_sym_htab.
3636         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
3637         (init_varasm_status): Don't initialize const_rtx_sym_htab.
3638         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
3639         Remove handling of const_rtx_sym_htab.
3640         (find_pool_constant): Delete.
3641         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
3642         rather than find_pool_constant.
3643         (get_pool_constant_for_function): Delete.
3644         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
3645         find_pool_constant.
3646         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
3647         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
3648         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
3649         (SYMBOL_REF_CONSTANT): New macro.
3650         (get_pool_constant_for_function): Delete.
3651         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
3652         rather than SYMBOL_REF_DECL.
3653         (i386_pe_mark_dllimport): Likewise.
3654         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
3655         rather than SYMBOL_REF_DECL.
3656         * config/darwin.c (machopic_indirect_data_reference): Likewise.
3657         (machopic_indirect_call_target): Likewise.
3658
3659 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
3660
3661         * flow.c (delete_noop_moves): Add missing EOL to dump message.
3662
3663 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
3664
3665         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
3666
3667 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
3668
3669         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
3670
3671 2006-01-24  David Daney  <ddaney@avtrex.com>
3672
3673         PR java/25816
3674         * configure.ac (enable_tls): New enable option.
3675         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
3676         * configure: Regenerate.
3677         * doc/install.texi (--enable-tls): Document new option.
3678         (--disable-tls): Ditto.
3679
3680 2006-01-24  Richard Henderson  <rth@redehat.com>
3681
3682         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
3683         * alias.c (true_dependence): Respect it.
3684         (canon_true_dependence, write_dependence_p): Likewise.
3685         * builtins.c (get_builtin_sync_mem): Set it.
3686
3687 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
3688
3689         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
3690         efficient way.
3691
3692 2006-01-24  DJ Delorie  <dj@redhat.com>
3693
3694         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
3695         for storing constants in single-bit bitfields.
3696
3697 2006-01-25  Ben Elliston  <bje@au.ibm.com>
3698
3699         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
3700
3701 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
3702
3703         PR tree-opt/25860
3704         * tree-ssa-pre.c (phi_translate): Return NULL
3705         for AGGREGATE_TYPE's.
3706
3707 2006-01-24  Zack Weinberg  <zackw@panix.com>
3708
3709         * genautomata.c (process_state_for_insn_equiv_partition):
3710         Use xcalloc for insn_arcs_array.
3711         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
3712         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
3713
3714 2006-01-24  Richard Henderson  <rth@redhat.com>
3715
3716         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
3717         update all callers.
3718
3719 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
3720
3721         PR rtl-optimization/25890
3722         PR rtl-optimization/25905
3723         * combine.c (expand_compound_operation, expand_field_assignment):
3724         Fail if the bitfield's final position is out of bounds.
3725
3726 2006-01-24  Ian Lance Taylor  <ian@airs.com>
3727
3728         PR middle-end/25930
3729         * cgraphunit.c (cgraph_output_in_order): Don't clear
3730         cgraph_asm_nodes until after asm strings have been output.
3731
3732 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
3733
3734         * fix-header.c (read_scan_file): Add new parameter imultilib when
3735         calling register_include_chains.
3736
3737 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
3738
3739         * omp-low.c: Update documentation.
3740
3741 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
3742             Daniel Berlin  <dberlin@dberlin.org>
3743
3744         PR tree-opt/25315
3745         PR tree-opt/25857
3746         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
3747         return from the function.
3748
3749 2006-01-22  Zack Weinberg  <zackw@panix.com>
3750
3751         * rtl.def (match_code): Add second argument.
3752         * genpreds.c (write_extract_subexp): New function.
3753         (write_match_code): Add path argument.  Use write_extract_subexp.
3754         (write_predicate_expr): Pass path to write_match_code.
3755         (mark_mode_tests): MATCH_CODE applied to a subexpression does
3756         not perform a mode test.
3757         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
3758         a subexpression does not constrain the top-level code set.
3759         * read-rtl.c (read_rtx_variadic): New function.
3760         (read_rtx_1): Use it; allow AND and IOR to be variadic.
3761         * doc/md.texi: Document new notation.
3762         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
3763         (cmpsi_operand): ... here, using new notation.
3764
3765 2006-01-22  Zack Weinberg  <zackw@panix.com>
3766
3767         * varray.c: Remove GENERATOR_FILE #ifdefs.
3768
3769 2006-01-22  Zack Weinberg  <zackw@panix.com>
3770
3771         * genautomata.c (output_reserved_units_table): Emit nothing if
3772         description->query_units_num is zero.  Remove extra blank line.
3773         (output_cpu_unit_reservation_p): Short circuit
3774         if description->query_units_num is zero.
3775
3776 2006-01-22  Zack Weinberg  <zackw@panix.com>
3777
3778         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
3779         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
3780         nor any of the random handful of variables that used to be necessary
3781         when this program was linked with rtlanal.o.  Prune set of forward
3782         function declarations.
3783         (struct attr_desc): Remove static_p field.
3784         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
3785         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
3786         (attr_string): Do not read the character one past the length of
3787         the string.
3788         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
3789         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
3790         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
3791         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
3792         (make_automaton_attrs): New.
3793         (main): Do not call into genautomata.  Call local gen_bypass
3794         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
3795         Remove special case for insn_alts.
3796         * genautomata.c: Include gensupport.h; not genattrtab.h nor
3797         varray.h (leftover from previous change).  Prune set of forward
3798         function declarations.  Remove state_alts fields from all
3799         structures.  Remove state_alts_table from struct automaton.
3800         Make everything except main static.  Do not maintain num_dfa_decls.
3801         Do not maintain state_alts fields of various structures.
3802         (process_decls): Don't validate condexp for dm_insn_reserv decls.
3803         (add_arc): Remove state_alts argument.  All callers updated.
3804         (output_reserved_units_table): Emit #ifdef here...
3805         (output_tables): ...not here.  Don't generate state_alts tables.
3806         (expand_automata): Don't generate attributes.
3807         (write_automata): Don't generate state_alts functions.
3808         (main): New function.
3809         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
3810         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
3811         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
3812         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
3813         (BYPASS_P_FUNC_NAME, output_state_alts_table)
3814         (output_automata_list_state_alts_code, output_internal_state_alts_func)
3815         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
3816         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
3817         Delete.
3818         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
3819         * genattrtab.h: Delete file.
3820         * Makefile.in (OBJS-common): Add insn-automata.o.
3821         (insn-automata.o): New rule.
3822         (simple_generated_c): Add insn-automata.c.
3823         (build/genattrtab.o, build/genautomata.o): Update dependencies.
3824         (genprogmd): Add automata.
3825         (build/genattrtab): Needs no extra objects nor libraries.
3826         (build/genautomata): Needs build/vec.o and -lm.
3827
3828 2006-01-22  Zack Weinberg  <zackw@panix.com>
3829
3830         * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
3831         (output_dfa_max_issue_rate, locked_states_num): Delete.
3832         (struct automaton): Add locked_states field.
3833         (output_dead_lock_vect): Save number of locked states in
3834         automaton->locked_states.  If it is zero, don't print anything.
3835         (output_max_insn_queue_index_def): Define max_insn_queue_index const.
3836         (output_internal_dead_lock_func): Only test the dead_lock_vect
3837         for automata that have locked states.
3838         (output_statistics): Always print the number of locked states for
3839         each automaton.  Calculate total number of locked states here.
3840         (write_automata): Don't call output_dfa_max_issue_rate.
3841         * genattrtab.c: Define length_unit_log as a const variable.
3842         * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
3843         max_insn_queue_index const.
3844         * final.c (length_unit_log): Declare const.
3845         * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.
3846
3847 2006-01-22  Zack Weinberg  <zackw@panix.com>
3848
3849         * genautomata.c:  Include vec.h, not varray.h.
3850         Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
3851         VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
3852         VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
3853         VEC_* macros operating on appropriately typed vectors, or to
3854         malloced arrays when the size is known in advance.  Const-ify
3855         many char* variables and function arguments.  No functional changes.
3856         * Makefile.in (build/varray.o): Delete rule.
3857         (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
3858         (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).
3859
3860 2006-01-22  Zack Weinberg  <zackw@panix.com>
3861
3862         * gensupport.c: Define get_insn_name and record_insn_name here.
3863         (read_md_rtx): Call record_insn_name as appropriate.
3864         * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
3865         * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
3866         * genpreds.c, genrecog.c: Don't define get_insn_name nor
3867         record_insn_name.
3868         * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
3869         (BUILD_VARRAY): Delete.
3870         (genprognormal): Rename genprogmd.  Fold in all programs from
3871         genprognoprint; also attrtab.
3872         (build/genattrtab): Just mention genautomata.o and varray.o.
3873         Reorganize a bit, add comments to make the categories clearer.
3874
3875 2006-01-22  Zack Weinberg  <zackw@panix.com>
3876
3877         * genconditions.c (condition_table, add_condition): Delete.
3878         (write_conditions): Don't emit n_insn_conditions nor
3879         insn_elision_unavailable.  Issue the gcc version #ifdef here,
3880         inside the table, with no #else clause ...
3881         (write_header): ...not here.
3882         (write_writer): New function.
3883         (main): Don't initialize condition_table.  Use add_c_test.
3884         Call write_writer.
3885         * gensupport.c (init_md_reader_args_cb): Handle multiple input
3886         files on the command line.
3887         (maybe_eval_c_test): Don't check insn_elision_unavailable.
3888         Return -1 if there is no entry in the table, don't abort.
3889         (add_c_test, traverse_c_tests): New functions.
3890         * gensupport.h (insn_elision_unavailable, insn_conditions)
3891         (n_insn_conditions): Delete declarations.
3892         (add_c_test, traverse_c_tests): Declare.
3893         * read-rtl.c: Include gensupport.h.
3894         (read_conditions): New function.
3895         (read_rtx): If read_rtx_1 returns 0, treat as EOF.
3896         (read_rtx_1): If we get EOF when we were looking for an initial
3897         open paren, return 0.  Call read_conditions when appropriate.
3898         * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
3899         dummy-conditions.o.  Eliminate references to insn-conditions.o,
3900         or change them to build/gencondmd.o, as appropriate.  Remove
3901         insn-constants.h from $(simple_generated_h) and insn-conditions.c
3902         from $(simple_generated_c).  For all files remaining in those
3903         two lists, add insn-conditions.md to the generator command line.
3904         Give insn-constants.h/s-constants their own rules.  Add rules
3905         for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
3906         (build/read-rtl.o): Depend on gensupport.h.
3907         (genprognormal): Include preds.
3908         (genprogearly): Rename genprognoprint; only difference is now that
3909         they don't link with $(BUILD_PRINT).
3910         * dummy-conditions.c: Delete.
3911
3912 2006-01-22  Zack Weinberg  <zackw@panix.com>
3913
3914         * genextract.c: Don't include insn-config.h.  Do include vec.h.
3915         Declare vectors of int, char, and locstr.
3916         (locstr): New typedef.
3917         (struct extraction): Make all array fields into bare pointers.
3918         (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
3919         (insn_code_number): Delete.
3920         (accum_extract): New struct.
3921         (VEC_safe_set_locstr, VEC_char_to_string): New functions.
3922         (gen_insn): Take insn_code_number as an argument.  Use an
3923         accum_extract structure instead of loading data directly into
3924         a struct extraction, and having to know how big it might get.
3925         (walk_rtx): Operate entirely on an accum_extract structure.
3926         (print_path): Avoid unnecessary use of printf.
3927         (print_header): New function, split out of main.  Distinguish
3928         more carefully between an unrecognizable insn and an insn that
3929         has the code number of a define_expand.
3930         (main): Pass insn_code_number to gen_insn.  Call print_header
3931         only after parsing.  Avoid unnecessary use of printf.
3932         * Makefile.in (build/vec.o): New rule.
3933         (build/genextract): Depend on build/vec.o.
3934         (build/genextract.o): Don't depend on insn-config.h.
3935
3936 2006-01-22  Zack Weinberg  <zackw@panix.com>
3937
3938         * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
3939         $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
3940         practical.  Eliminate per-generator-program link rules.
3941
3942 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
3943
3944         PR middle-end/24437
3945         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
3946         with a call expr to ...
3947         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
3948
3949 2006-01-23  Richard Guenther  <rguenther@suse.de>
3950
3951         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
3952         before make_edge with conditional EDGE_TRUE_VALUE.
3953
3954 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
3955         Jan Hubicka  <jh@suse.cz>
3956         Richard Guenther  <rguenther@suse.de>
3957
3958         PR rtl-optimization/25654
3959         * cfgexpand.c (aggregate_contains_union_type): New function.
3960         (add_alias_set_conflicts): Call it.  Make sure to add conflicts
3961         for structure variables that contain a union type.
3962
3963 2006-01-23  Richard Sandiford  <richard@codesourcery.com>
3964
3965         * gengtype.c (new_structure): Return the structure.
3966         (create_option): Add an extra "next" argument.
3967         (create_field): New function.
3968         (adjust_field_rtx_def): Use create_option and create_field.
3969         Remove a now-unnecessary call to find_structure.
3970         (adjust_field_tree_def): Likewise.
3971         (note_yacc_type): Remove an unnecessary call to find_structure.
3972         * gengtype.h (new_structure): Return the structure.
3973         (create_option): Add an extra argument.
3974         * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
3975         (option): Adjust calls to create_option.
3976
3977 2006-01-22  David Edelsohn  <edelsohn@gnu.org>
3978
3979         * config/rs6000/aix.h (STACK_BOUNDARY): Define.
3980
3981 2006-01-22  Paul Brook  <paul@codesourcery.com>
3982         Peter Barada  <peter@the-baradas.com>
3983
3984         * config/m68k/m68k.md: Add Coldfire FPU support.
3985         Define FP mode macro and associated attributes.
3986         Use it for float mode patterns.
3987         * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
3988         (LIBCALL_VALUE): Use m68k_libcall_value.
3989         * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
3990         (m68k_function_value): Ditto.
3991         (emit_move_sequence): Ditto.
3992         * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
3993         * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
3994         * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
3995         (MULTILIB_EXCEPTIONS): Ditto.
3996         * config/m68k/m68k.opt: Add mcfv4e.
3997         * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
3998         (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
3999         (m68k_output_function_prologue): Save ColdFire FPU registers.
4000         (m68k_output_function_epilogue): Restore ColdFire FPU registers.
4001         (force_mode, fp_reg_operand, emit_move_sequence): New functions.
4002         (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
4003         ColdFire FPU registers.
4004         (m68k_libcall_value, m68k_function_value): New functions.
4005         * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
4006         (LIBCALL_VALUE): Use m68k_libcall_value.
4007         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
4008         (MASK_COLDFIRE): Add MASK_CFV4E.
4009         (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
4010         (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
4011         (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
4012         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
4013         (GO_IF_LEGITIMATE_ADDRESS): Use it.
4014         (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
4015         * doc/invoke.tex: Document -mcfv4e on m68k.
4016
4017 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
4018
4019         * doc/contribute.texi: Change CVS to SVN and update the corresponding
4020         URL.
4021
4022 2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>
4023
4024         PR c++/16190
4025         * c-opts.c (c_common_handle_option): Don't include
4026         -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
4027         * doc/invoke.texi (C++ Dialect Options): Document that
4028         -Wnon-virtual-dtor is no longer included in -Wall.
4029
4030 2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>
4031
4032         * gcov.c (print_version), gcov-dump.c (print_version),
4033         mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
4034         dates.
4035
4036 2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>
4037
4038         * df-scan.c (problem_SCAN): Added NULL reset function.
4039         (df_scan_reset_blocks): Added code to call reset block function
4040         (df_bb_refs_delete) Fixed comment.
4041         (df_insn_refs_delete): Made tolerant of deleting non existent info
4042         for dataflow problems that need to be reset.
4043         * df-core.c (df_set_blocks): Ditto.
4044         * df.h (struct df_problem): Added reset_fun.
4045         * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
4046         problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
4047         (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
4048         functions to clear out all references to def-use or use-def chains.
4049
4050 2006-01-21  Ben Elliston  <bje@au.ibm.com>
4051
4052         * varasm.c (assemble_real): Initialise data array.
4053
4054 2006-01-20  Paul Brook  <paul@codesourcery.com>
4055
4056         Merge from csl-arm-branch.
4057         2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
4058         * config/arm/arm.md (movdi): Force operands[1] to a register
4059         if we have a non-register source.
4060         (*arm_movdi, *movdf_soft_insn): Require that one of the
4061         operands be a register.
4062         * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
4063         * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.
4064
4065 2006-01-20  DJ Delorie  <dj@redhat.com>
4066
4067         * varasm.c (initialize_constant_valid_p): Allow pointers
4068         initialized from integer constants of lesser precision.
4069         (output_constant): Allow non-int-sized pointer modes to be
4070         initialized from integer constants.
4071
4072 2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>
4073
4074         PR libstdc++/25524
4075         * cppdefault.h (struct default_include): Add multilib flag.
4076         * cppdefault.c (cpp_include_defaults): Set it.
4077         * c.opt (-imultilib): New option.
4078         * c-opts.c (imultilib): New.
4079         (c_common_handle_option): Handle -imultilib.
4080         (c_common_post_options): Likewise.
4081         * c-incpath.c (add_standard_paths, register_include_chains):
4082         Likewise.
4083         * c-incpath.h (register_include_chains): Add extra parameter.
4084         * gcc.c (do_spec_1): Generate -imultilib option.
4085         (The Specs Language): Update %I description.
4086         (process_command): Update copyright notice.
4087         * doc/cppopts.texi (-imultilib): Document.
4088         * doc/invoke.texi (-imultilib): Include in option summary.
4089         (%I): Update specs documentation.
4090
4091 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
4092
4093         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
4094
4095 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
4096
4097         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
4098         label numbers.
4099
4100 2006-01-20  Richard Guenther  <rguenther@suse.de>
4101         Steven Bosscher <stevenb.gcc@gmail.com>
4102
4103         PR rtl-optimization/24626
4104         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
4105         EDGE_TRUE_VALUE if in RTL mode.
4106
4107         Revert
4108         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
4109         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
4110
4111 2006-01-20  Dirk Mueller  <dmueller@suse.com>
4112
4113         PR c++/5520
4114         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
4115         instead of a special NOP marker.
4116         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
4117         NOP marker handling.
4118         * c-common.h (empty_body_warning): Add forward declaration.
4119         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
4120         Now uses IS_EMPTY_STMT() instead of special NOP markers.
4121
4122 2006-01-20  Paul Brook  <paul@codesourcery.com>
4123
4124         * Makefile.in (lang_checks): Keep going if mkdir fails.
4125
4126 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
4127
4128         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
4129         be able to clean out basic block when not necessary.
4130         (df_scan_free): Fixed to properly delete information if df is
4131         unused before calling df_finish.
4132         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
4133         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
4134         or comment typos.
4135         (df_bb_refs_delete): New function.
4136         (df_refs_delete): Moved per block code to df_bb_refs_delete.
4137         * df-core.c (df_set_blocks): Added code to properly clean out
4138         unused blocks if they are not part of the blocks to consider.
4139         Added additional null check.
4140         (df_compact_blocks): Added basic block parameter to free_bb_fun to
4141         be able to clean out basic block when not necessary
4142         * df.h (df_free_bb_function): Ditto.
4143         (df_bb_refs_delete): New function.
4144         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
4145         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
4146         basic block parameter to be able to clean out basic block when not
4147         necessary.
4148         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
4149         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
4150         Fixed to properly delete information if df is unused before
4151         calling df_finish.
4152
4153 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
4154
4155         PR rtl-optimization/25799
4156         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
4157         Corrected confluence operator to remove bits from op2 before oring
4158         with op1 rather than removing bits from op1.
4159         (df_ru_transfer_function): Corrected test on wrong bitmap which
4160         caused infinite loop.  Both of these problems were introduced in
4161         the dataflow rewrite.
4162
4163 2006-01-19  DJ Delorie  <dj@redhat.com>
4164
4165         * reload1.c (find_reload_regs): Note the details of reload
4166         failures in the dump file.
4167         (spill_failure): Likewise.
4168
4169 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
4170
4171         * loop-iv.c: Include df.h and hashtab.h.
4172         (enum iv_grd_result): New enum.
4173         (DF_REF_IV, DF_REF_IV_SET): New macros.
4174         (struct biv_entry): New.
4175         (df, bivs): New global variables.
4176         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
4177         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
4178         Removed.
4179         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
4180         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
4181         analyzed_for_bivness_p, record_biv): New functions.
4182         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
4183         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
4184         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
4185         UD chains.
4186         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
4187         analysed.
4188         (iv_number_of_iterations): Use new interface to iv analysis.
4189         * loop-unroll.c: Do not include varray.h.
4190         (analyze_iv_to_split_insn): Use new interface to iv
4191         analysis.
4192         * loop-unswitch.c (may_unswitch_on): Ditto.
4193         * df.c (df_bitmaps_free): Only work for bbs for that structures are
4194         allocated.
4195         (df_bb_modify): Realloc tables to the new index.
4196         (df_find_use): New function.
4197         * df.h (df_find_use): Declare.
4198         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
4199         outmode.
4200         * cfgloop.h (struct rtx_iv): Remove analysed field.
4201         (iv_get_reaching_def): Removed.
4202         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
4203         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
4204         (loop-iv.o): Add df.h and hashtab.h dependency.
4205         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
4206
4207 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
4208
4209         PR target/25668
4210         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
4211         Double TFmode.
4212         (__floatundisf, __floatundidf): Likewise.
4213         * libgcc2.h (IS_IBM_EXTENDED): Define.
4214
4215 2006-01-19  DJ Delorie  <dj@redhat.com>
4216
4217         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
4218
4219 2006-01-19  Paul Brook  <paul@codesourcery.com>
4220
4221         * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
4222         as nothrow when unwinding tables are disabled.
4223
4224 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4225
4226         PR testsuite/25171
4227         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
4228         of bit-field" when in system header.
4229
4230 2006-01-19  DJ Delorie  <dj@redhat.com>
4231
4232         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
4233         the 16 bit shift limit of the m16c.
4234
4235 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
4236
4237         PR target/22099
4238         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
4239         * config/i386/i386.c (output_set_got): Output the label if we have one
4240         for the TARGET_DEEP_BRANCH_PREDICTION case.
4241
4242 2006-01-19  Jan Hubicka  <jh@suse.cz>
4243             H.J. Lu  <hongjiu.lu@intel.com>
4244             Evandro Menezes <evandro.menezes@amd.com>
4245
4246         * invoke.texi (generic): Document
4247         (i686) Update.
4248         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
4249         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
4250         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
4251         (x86_use_incdec, x86_pad_returns): New variables
4252         (TARGET_CPU_DEFAULT_generic): New constant
4253         (TARGET_CPU_DEFAULT_NAMES): Add generic.
4254         (enum processor_type): Add generic32 and generic64.
4255         * i386.md (cpu attribute): Add generic32/generic64
4256         (movhi splitter): Behave sanely when both partial_reg_dependency and
4257         partial_reg_stall are set.
4258         (K8 splitters): Enable for generic as well.
4259         * predicates.md (incdec_operand): Use TARGET_INCDEC
4260         (aligned_operand): Avoid memory mismatch stalls.
4261         * athlon.md: Enable for generic64, new patterns for 128bit moves.
4262         * ppro.md: Enable for generic32
4263         * i386.c (generic64_cost, generic32_cost): New.
4264         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
4265         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
4266         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
4267         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
4268         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
4269         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
4270         x86_partial_reg_dependency, x86_memory_mismatch_stall,
4271         x86_accumulate_outgoing_args, x86_prologue_using_move,
4272         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
4273         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
4274         Enable for generic.
4275         (x86_use_incdec, x86_pad_returns): New.
4276         (override_options): Add generic32 and generic64, translate "generic"
4277         to generic32/generic64 and "i686" to "generic32", refuse
4278         "generic32"/"generic64" as arch target.
4279         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
4280         (ix86_reorg): Honor PAD_RETURNS.
4281
4282 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
4283
4284         * tree-pretty-print.c (dump_generic_node): Handle
4285         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
4286         * cgraph.c (cgraph_expand_queue): Rename from
4287         cgraph_analyze_queue.  Update all users.
4288         * cgraphunit.c (cgraph_assemble_pending_functions): Process
4289         cgraph_expand_queue.
4290         (cgraph_expand_all_functions): Likewise.
4291         (cgraph_finalize_pending_functions): Remove.  Update callers.
4292
4293         * tree.h (OMP_DIRECTIVE_P): Define.
4294         (OMP_PARALLEL_FN): Define.
4295         (OMP_PARALLEL_DATA_ARG): Define.
4296         (OMP_SECTIONS_SECTIONS): Define.
4297         * tree-pass.h (pass_expand_omp): Declare.
4298         * omp-low.c (struct omp_region): Declare.
4299         (struct omp_context): Remove fields 'parallel_type',
4300         'parallel_start_ix' and 'parallel_start_additional_args'.
4301         Update all users.
4302         (struct omp_for_data): Rename from struct expand_omp_for_data.
4303         (omp_regions): New static variable.
4304         (root_omp_region): New static variable.
4305         (find_omp_clause): Make static.
4306         (is_in_combined_parallel_ctx): Remove.
4307         (is_combined_parallel): New.
4308         (extract_omp_for_data): Move earlier in the file.
4309         (workshare_safe_to_combine_p): New.
4310         (get_ws_args_for): New.
4311         (determine_parallel_type): Move earlier in the file.
4312         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
4313         child function.
4314         (omp_copy_decl): Likewise.
4315         (create_omp_child_function): Likewise.
4316         (lookup_omp_region): New.
4317         (dump_omp_region): New.
4318         (debug_omp_region): New.
4319         (debug_all_omp_regions): New.
4320         (new_omp_region): New.
4321         (scan_omp_parallel): If parallel_nesting_level > 1, the
4322         directive is nested within another parallel directive.
4323         Set OMP_PARALLEL_FN.
4324         (scan_omp_for): Do not try to handle combined parallel+for
4325         cases.
4326         Remove FIXME comment.
4327         (scan_omp_nested): Remove.
4328         (scan_omp_1): Do not call scan_omp_nested when
4329         parallel_nesting_level is > 1.
4330         Do not change the DECL_CONTEXT of local variables found.
4331         (lookup_decl_in_outer_ctx): New.
4332         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
4333         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
4334         (lower_reduction_clauses): Rename from expand_reduction_clauses.
4335         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
4336         If CTX is nested, lookup VAR in the outer context when
4337         building copy assignment.
4338         (lower_send_clauses): Rename from expand_send_clauses.
4339         If CTX is nested, lookup VAR in the outer context when
4340         building copy assignments.
4341         (lower_send_shared_vars): Rename from expand_send_shared_vars.
4342         If CTX is nested, lookup VAR in the outer context when
4343         building copy assignments.
4344         (expand_parallel_call): Rename from build_parallel_call.
4345         Handle combined parallel+workshare cases.
4346         Re-implement to emit code into the CFG.
4347         (list2chain): New.
4348         (expand_omp_parallel): Re-implement to emit code into the CFG.
4349         Call move_sese_region_to_fn to outline the sub-graph
4350         containing the parallel region.
4351         (expand_omp_for_1): Remove.
4352         (expand_omp_for_generic): Re-implement to emit code into the
4353         CFG.
4354         (expand_omp_for_static_nochunk): Likewise.
4355         (expand_omp_for_static_chunk): Likewise.
4356         (expand_omp_for): Likewise.
4357         (expand_omp_sections): Likewise.
4358         (remove_exit_barriers): New.
4359         (expand_omp_synch): New.
4360         (expand_omp): New.
4361         (build_omp_regions_1): New.
4362         (build_omp_regions): New.
4363         (execute_expand_omp): New.
4364         (gate_expand_omp): New.
4365         (pass_expand_omp): Define.
4366         (lower_omp_sections): Rename from expand_omp_sections.
4367         Set OMP_SECTIONS_SECTIONS.
4368         (lower_omp_single_simple): Rename from expand_omp_single_simple.
4369         (lower_omp_single_copy): Rename from expand_omp_single_copy.
4370         (lower_omp_single): Rename from expand_omp_simple.
4371         (lower_omp_master): Rename from expand_omp_master.
4372         (lower_omp_ordered): Rename from expand_omp_ordered.
4373         (lower_omp_critical): Rename from expand_omp_critical.
4374         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
4375         (lower_omp_for): Re-implement.
4376         (lower_omp_parallel): Re-implement.
4377         (lower_regimplify): Rename from expand_regimplify.
4378         (lower_omp_1): Rename from expand_omp_1.
4379         If there are syntax errors in the program, replace every
4380         OpenMP directive with NOP.
4381         Call lower_omp_* instead of expand_omp_*.
4382         (lower_omp): Rename from expand_omp.
4383
4384         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
4385         * tree-gimple.h (enum omp_parallel_type): Remove.
4386         (gimple_boolify): Declare extern.
4387         (find_omp_clause, determine_parallel_type): Remove.
4388
4389         * gimple-low.c (lower_omp_directive): New.
4390         (lower_stmt): Call it.
4391         (record_vars_into): Move from ...
4392         (record_vars): ... here.
4393         Call record_vars_into with current_function_decl.
4394
4395         * gimplify.c (struct gimplify_ctx): Remove fields
4396         combined_pre_p and combined_ctxp.  Update users.
4397         (get_formal_tmp_var): Add documentation.
4398         (gimple_boolify): Make extern.
4399         (gimplify_expr_in_ctx): Remove.  Update callers.
4400         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
4401         will always be a BIND_EXPR.
4402         (gimplify_expr): Handle OMP_RETURN_EXPR.
4403         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
4404         (OMP_PARALLEL): Add 3 operands.
4405         (OMP_SECTIONS): Add 1 operand.
4406         (OMP_RETURN_EXPR): Define.
4407
4408         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
4409         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
4410         * tree-iterator.c (alloc_stmt_list): Assert that we are not
4411         creating a circular free list.
4412         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
4413
4414         * tree-flow.h (move_sese_region_to_fn): Declare.
4415         (record_vars_into): Declare.
4416         * tree-cfg.c (make_omp_sections_edges): New.
4417         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
4418         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
4419         OMP_SECTIONS and OMP_SECTION.
4420         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
4421         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
4422         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
4423         (gather_blocks_in_sese_region): New.
4424         (struct move_stmt_d): Declare.
4425         (move_stmt_r): New.
4426         (move_block_to_fn): New.
4427         (move_sese_region_to_fn): New.
4428
4429         * passes.c (init_optimization_passes): Schedule
4430         pass_expand_omp after pass_init_datastructures.
4431
4432         * tree-ssa-operands.c (get_expr_operands): Handle
4433         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
4434         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
4435
4436 2006-01-19  Jeff Law  <law@redhat.com>
4437
4438         * tree-vrp.c (extract_range_from_assert): Refine the result range
4439         if the variable referenced by the ASSERT_EXPR has a range and
4440         either the tentative result range or the previous range is a
4441         VR_ANTI_RANGE.
4442
4443 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
4444
4445         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
4446
4447 2006-01-19  Jan Hubicka  <jh@suse.cz>
4448
4449         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
4450
4451 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
4452
4453         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
4454         (expand_compound_operation, expand_field_assignment): Fail if the
4455         bit lengths of an extract operation are out of range.
4456         (make_extraction): Compute wanted_inner_mode based on the position
4457         and length of the extraction.  Make it extraction_mode for non-constant
4458         positions, and do not modify offset in that case.  When generating a
4459         new MEM, use a mode that can hold the extraction while keeping correct
4460         alignment.  Remove code that supported MEMs wrapped by USEs.
4461         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
4462
4463 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
4464
4465         * config/s390/s390.md ("Y", "y"): New mode attribute.
4466         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
4467         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
4468         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
4469         "*addsi3_imm_cc", "*addsi3_carry1_cc",
4470         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
4471         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
4472         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
4473         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
4474         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
4475         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
4476         "addsi3", "subsi3"): Insn patterns removed.
4477         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
4478         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
4479         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
4480         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
4481         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
4482         "*sub<mode>3_cconly2"): New insn patterns.
4483         ("addsi3", "subsi3"): New expanders.
4484
4485 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
4486
4487         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
4488         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
4489         existing STMT_VINFO_VECTYPE if available.
4490         (vect_mark_relevant): Add special handling for stmts that are
4491         marked as STMT_VINFO_IN_PATTERN_P.
4492         (vect_analyze_loop): Call vect_pattern_recog.
4493         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
4494         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
4495         stmt_info.
4496         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
4497         (vect_recog_func_ptr): New function-pointer type.
4498         * tree-vect-patterns.c: New file.
4499         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
4500         (vect_recog_dot_prod_pattern, vect_pattern_recog):
4501         (vect_pattern_recog_1): New functions.
4502         (vect_pattern_recog_funcs): New array of function pointers.
4503
4504         * tree-vectorizer.h (ternary_op): New enum value.
4505         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
4506         declaration. Revised documentation. Removed redundant dump prints.
4507         Removed redundant argument. Added support for reduction patterns.
4508         (vectorizable_reduction): Added support for reduction patterns.
4509         (vect_transform_stmt): Added support for patterns.
4510
4511         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
4512         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
4513         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
4514         (expand_widen_pattern_expr): New function.
4515         (init_optabs): Initialize new optabs udot_prod_optab,
4516         sdot_prod_optab.
4517         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
4518         (sdot_prod_optab, udot_prod_optab): Define new optabs.
4519         (expand_widen_pattern_expr): New function declaration.
4520         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
4521         tree-codes.
4522         * tree-inline.c (estimate_num_insns_1): Added cases for new
4523         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
4524         * tree-pretty-print.c (dump_generic_node): Likewise.
4525         (op_prio): Likewise.
4526         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
4527         * tree-ssa-operands.c (get_expr_operands): Added case for
4528         DOT_PROD_EXPR.
4529         * tree-vect-patterns.c (widened_name_p): New function.
4530         (vect_recog_dot_prod_pattern): Added function implementation.
4531         * tree-vect-transform.c (get_initial_def_for_reduction): Added
4532         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
4533         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
4534         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
4535
4536         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
4537         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
4538         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
4539         (init_optabs): Initialize new optabs widen_ssum_optab,
4540         widen_usum_optab.
4541         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
4542         (widen_ssum_optab, widen_usum_optab): Define new optabs.
4543         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
4544         use instead of type of def.
4545         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
4546         function implementation.
4547         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
4548         widen_ssumv8hi): New.
4549
4550         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
4551         patterns.
4552
4553 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
4554
4555         PR c/25805
4556         * c-decl.c (add_flexible_array_elts_to_size): New function.
4557         (finish_decl): Use it.
4558
4559 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
4560
4561         * diagnostic.h: Include options.h.
4562         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
4563         dependancies for diagnostic.h.
4564         * Makefile.in (DIAGNOSTIC_H): Add options.h.
4565
4566 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
4567
4568         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
4569         (ssa_ro_call_cache_valid): Ditto.
4570         * tree-ssa-alias.c (sort_tags_by_id): New function.
4571         (init_transitive_clobber_worklist): Ditto.
4572         (add_to_worklist): Ditto.
4573         (mark_aliases_call_clobbered): Ditto.
4574         (compute_tag_properties): Ditto.
4575         (set_initial_properties): Ditto.
4576         (compute_call_clobbered): Ditto.
4577         (compute_may_aliases):  Call compute_call_clobbered and grouping.
4578         (compute_flow_sensitive_aliasing): Remove clobbering related code.
4579         (compute_flow_insensitive_aliasing): Grouping now happens in our
4580         caller.
4581         (setup_pointers_and_addressables): Remove clobbering related code.
4582         (add_may_alias): Ditto.
4583         (replace_may_alias): Ditto.
4584         (get_nmt_for): Ditto.
4585         (create_global_var):
4586         (is_escape_site): Return an escape_type enumeration.
4587         * tree-flow-inline.h (is_call_clobbered):  Global var does not
4588         imply call clobbered.
4589         (mark_call_clobbered): Take a reason for marking this. Remove
4590         marking of globalness, and cache invalidation.
4591         (clear_call_clobbered): Remove cache invalidation code.
4592         * tree-dfa.c (dump_variable): If details is on, dump the reason
4593         for escaping.
4594         * tree-outof-ssa.c (create_temp): Copy escape mask from original
4595         variable.
4596         * tree-flow.h (struct ptr_info_def): Add escape mask member.
4597         (struct var_ann_d): Ditto.
4598         (enum escape_type): New.
4599         (mark_call_clobbered): Adjust prototype.
4600         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
4601         are never call clobbered.
4602         Record reasons for escaping.
4603         * tree-ssa-structalias.h (is_escape_site): Update prototype.
4604         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
4605         (ssa_ro_call_cache_valid): Ditto.
4606         (clobbered_v_may_defs): Ditto.
4607         (clobbered_vuses): Ditto.
4608         (ro_call_vuses): Ditto.
4609         (clobber_stats): New.
4610         (init_ssa_operands): Zero out clobber stats.
4611         (fini_ssa_operands): Print out clobber stats.
4612         (get_call_expr_operands): Pass callee fndecl to
4613         add_call_read_ops).
4614         (add_call_clobber_ops): Remove use of cache.
4615         Add use of PURE_CONST information.
4616         (add_call_read_ops): Remove use of cache.
4617         Add use of static not_read information.
4618
4619 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
4620
4621         Introduce TLS descriptors for i386 and x86_64.
4622         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
4623         (TARGET_ANY_GNU_TLS): New macro.
4624         (enum tls_dialect): Added TLS_DIALECT_GNU2.
4625         (struct machine_function): Add tls_descriptor_call_expanded_p.
4626         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
4627         (ix86_current_function_calls_tls_descriptor): Likewise.
4628         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
4629         (override_options): Introduce gnu2 tls dialect.
4630         (ix86_frame_pointer_required): Functions containing TLSCALLs are
4631         not leaves.
4632         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
4633         Likewise.
4634         (legitimize_tls_address): Adjust logic for GNU2 TLS.
4635         (ix86_init_machine_status): Initialize new field.
4636         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
4637         (ix86_tls_module_base): New.
4638         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
4639         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
4640         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
4641         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
4642         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
4643         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
4644         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
4645         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
4646         * config/i386/predicates.md (tls_modbase_operand): New.
4647         (tp_or_register_operand): New.
4648
4649 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
4650
4651         * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
4652         (look_for_address_of): Ditto.
4653         (ipa_init): Walk the function decls.
4654         (static_execute): Don't set readonly on FUNCTION_DECL's.
4655
4656 2006-01-18  Roger Sayle  <roger@eyesopen.com>
4657
4658         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
4659         for shifts where the source and destination registers are different.
4660
4661 2006-01-18  Paul Brook  <paul@codesourcery.com>
4662
4663         Merge from csl-arm-branch.
4664         2005-03-14  Julian Brown  <julian@codesourcery.com>
4665         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
4666         (aeabi_llsl): Likewise.
4667         (ashrdi3): Likewise.
4668         (aeabi_lasr): Likewise.
4669         (lshrdi3): Likewise.
4670         (aeabi_llsr): Likewise.
4671         2005-03-10  Julian Brown  <julian@codesourcery.com>
4672         * config.gcc: Disable shared libgcc for SymbianOS.
4673         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
4674
4675 2006-01-18  DJ Delorie  <dj@redhat.com>
4676
4677         * c-pragma.c (handle_pragma_diagnostic): New.
4678         (init_pragma): Register it.
4679         * doc/extend.texi: Document it.
4680
4681         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
4682         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
4683         (diagnostic_context): Add classify_diagnostic[].
4684         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
4685         as errors if they're overridden to DK_WARNING.
4686         (diagnostic_initialize): Initialize classify_diagnostic[].
4687         (diagnostic_set_kind_override): New.
4688         (diagnostic_report_diagnostic): Check for kind changes.
4689         * opts.c (common_handle_option): Take lang_mask.  Update callers.
4690         Handle OPT_Werror_.
4691         * common.opt (Werror=): New.
4692         * doc/invoke.texi: Document -Werror=*
4693
4694 2006-01-18  Jeff Law  <law@redhat.com>
4695
4696         * tree-vrp.c (test_for_singularity): Correct test for new
4697         min limit.  Use operand_equal_p rather than pointer equality
4698         for testing if new min/max values are equal.
4699
4700         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
4701         using range information until after propagation and folding.
4702
4703 2006-01-18  Richard Henderson  <rth@redhat.com>
4704             Aldy Hernandez  <aldyh@redhat.com>
4705             Jakub Jelinek  <jakub@redhat.com>
4706             Diego Novillo  <dnovillo@redhat.com>
4707
4708         * omp-low.c: New file.
4709         * c-omp.c: New file.
4710
4711 2006-01-18  Richard Henderson  <rth@redhat.com>
4712             Jakub Jelinek  <jakub@redhat.com>
4713             Diego Novillo  <dnovillo@redhat.com>
4714
4715         * doc/invoke.texi: Document -fopenmp.
4716         * tree-dump.h (debug_function): Declare.
4717         * hooks.c (hook_bool_tree_bool_false): New function.
4718         (hook_tree_tree_null): Remove.
4719         (hook_tree_tree_tree_null): New.
4720         * hooks.h: Update to match.
4721         * tree-pretty-print.c (debug_tree_chain): New.
4722         (print_generic_expr): Handle TDF_CHAIN.
4723         (dump_generic_node): Handle BLOCK.
4724         Do not abort with incomplete SWITCH_EXPRs.
4725         Do not dump body of an OpenMP directive if TDF_SLIM is given.
4726         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
4727         print space after directive name.
4728         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
4729         Handle OMP_MASTER and OMP_ORDERED.
4730         Handle printing of OMP_BODY just in one place, goto
4731         dump_omp_body in the rest of OMP_* nodes that have
4732         OMP_BODY.
4733         Don't handle clause nodes here.  Update omp statements to
4734         use dump_omp_clauses.
4735         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
4736         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
4737         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
4738         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
4739         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
4740         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
4741         Adjust output for GOMP_PARALLEL.
4742         (dump_omp_clauses): New.
4743         (print_declaration): Dump DECL_VALUE_EXPR.
4744         (op_symbol_1): Split out of op_symbol.
4745         (dumping_stmts): Remove.  Update all users.
4746         * cgraph.c (cgraph_analyze_queue): New.
4747         (cgraph_add_new_function): New.
4748         * cgraph.h (cgraph_analyze_queue): Declare.
4749         (cgraph_add_new_function): Declare.
4750         (cgraph_lower_function): Remove.
4751         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
4752         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
4753         and TYPE_P nodes in its default clause.
4754         (empty_body_p): New.
4755         (tree_range_check_failed): New.
4756         (build5_stat): New.
4757         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
4758         OMP_CLAUSE_REDUCTION_MERGE,
4759         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
4760         OMP_CLAUSE_PRIVATE_DEBUG,
4761         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
4762         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
4763         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
4764         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
4765         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
4766         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
4767         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
4768         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
4769         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
4770         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
4771         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
4772         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
4773         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
4774         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
4775         (TREE_RANGE_CHECK): New.
4776         (empty_body_p): Declare.
4777         (enum omp_clause_default_kind): New.
4778         (build_string_literal): Declare.
4779         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
4780         (build5_stat, build5): Declare.
4781         * tree-pass.h (TDF_CHAIN): Define.
4782         * tree-pass.h (PROP_gimple_lomp): Define.
4783         (pass_lower_omp): Declare.
4784         * diagnostic.h (debug_tree_chain): Declare.
4785         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
4786         mode_for_size.
4787         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
4788         * builtins.c (build_string_literal): Make extern.
4789         * gcc.c (include_spec_function): New.
4790         (static_spec_functions): Add it.
4791         (main): Move load of libgomp.spec ...
4792         (LINK_COMMAND_SPEC): ... here.
4793         (link_gomp_spec): New.
4794         (static_specs): Include it.
4795         (LINK_COMMAND_SPEC): Add link_gomp.
4796         (GOMP_SELF_SPECS): New.
4797         (driver_self_specs): Include it.
4798         (switch_matches): Don't mark inline.
4799         (main): Load libgomp.spec.
4800         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
4801         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
4802         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
4803         * tree-gimple.h (enum omp_parallel): Declare.
4804         (determine_parallel_type): Declare.
4805         (omp_firstprivatize_variable): Declare.
4806         (omp_reduction_init): Declare.
4807         (diagnose_omp_structured_block_errors): Declare.
4808         (struct walk_stmt_info): Add want_return_expr.
4809         (struct walk_stmt_info): Add want_bind_expr, want_locations.
4810         (find_omp_clause): Declare.
4811         (insert_field_into_struct): Declare.
4812         (struct walk_stmt_info): Move from tree-nested.c
4813         (walk_stmts): Declare.
4814         * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
4815         to 200505.
4816         * cgraphunit.c (cgraph_lower_function): Make static.
4817         (cgraph_finalize_pending_functions): New.
4818         (cgraph_finalize_function): Call it.
4819         (cgraph_finalize_compilation_unit): Likewise.
4820         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
4821         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
4822         (BT_FN_UINT_UINT): New.
4823         (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
4824         DEF_FUNCTION_TYPE_VAR_4): Document.
4825         (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
4826         BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
4827         BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
4828         BT_FN_VOID_OMPFN_PTR_UINT_UINT,
4829         BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
4830         BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
4831         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
4832         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
4833         * builtins.def: Update DEF_BUILTIN comment to include COND argument.
4834         Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
4835         into separate files.
4836         (DEF_GOMP_BUILTIN): New.
4837         (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
4838         BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
4839         BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
4840         BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
4841         BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
4842         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
4843         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
4844         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
4845         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
4846         BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
4847         BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
4848         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
4849         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
4850         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
4851         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
4852         BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
4853         BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
4854         BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
4855         BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
4856         BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
4857         BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
4858         BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
4859         BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
4860         BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
4861         BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
4862         BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
4863         * sync-builtins.def: New file, moved from builtins.def.
4864         * omp-builtins.def: New file, moved from builtins.def.
4865         * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
4866         * gimple-low.c (lower_function_body): Clear data.
4867         (lower_stmt): Do not handle COMPOUND_EXPR.
4868         Remove call to print_node_brief.
4869         * c-tree.h (c_finish_omp_clauses): New prototype.
4870         (C_DECL_THREADPRIVATE_P): Define.
4871         (lookup_name_no_remap, c_omp_remap_private): Remove
4872         (c_begin_omp_parallel, c_finish_omp_parallel): Update.
4873         (check_for_loop_decls): Update decl.
4874         (lookup_name_no_remap, c_omp_remap_private): Declare.
4875         (build_indirect_ref, build_modify_expr, pushdecl,
4876         pushdecl_top_level): Move to c-common.h.
4877         * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
4878         before the switch, but just in the 2 places that need it.
4879         * c-decl.c (diagnose_mismatched_decls): Do not check for
4880         mismatched thread-local attributes when OLDDECL is marked
4881         threadprivate and NEWDECL has no thread-local attributes.
4882         (merge_decls): Merge C_DECL_THREADPRIVATE_P.
4883         (c_gimple_diagnostics_recursively): Rename from
4884         c_warn_unused_result_recursively.  Invoke
4885         diagnose_omp_structured_block_errors.
4886         (check_for_loop_decls): Return a singular decl found.
4887         * langhooks.c (lhd_omp_predetermined_sharing): Return
4888         OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
4889         (lhd_omp_firstprivatize_type_sizes): New.
4890         (lhd_omp_assignment): New.
4891         (lhd_omp_predetermined_sharing): New.
4892         * langhooks.h (struct gimplify_omp_ctx): Forward declare.
4893         (struct lang_hooks_for_types): Add
4894         omp_firstprivatize_type_sizes, omp_privatize_by_reference,
4895         omp_predetermined_sharing, omp_disregard_value_expr,
4896         omp_private_debug_clause, omp_clause_default_ctor,
4897         omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
4898         (c_finish_omp_clauses): New.
4899         (c_finish_bc_stmt): Diagnose break within omp for.
4900         (c_begin_omp_parallel, c_finish_omp_parallel): New.
4901         (build_unary_op): Return error_mark after reporting
4902         a readonly_error.
4903         (build_modify_expr): Likewise.
4904         * gimplify.c: Include optabs.h and pointer-set.h.
4905         (enum gimplify_omp_var_data): Declare.
4906         (struct gimplify_omp_ctx): Declare.
4907         (struct gimplify_ctx): Add fields prev_context, combined_pre_p
4908         and combined_ctxp.
4909         (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
4910         (push_gimplify_context, pop_gimplify_context): Allow nesting.
4911         (splay_tree_compare_decl_uid): New.
4912         (new_omp_context): New.
4913         (delete_omp_context): New.
4914         (gimple_add_tmp_var): Call omp_add_variable.
4915         (gimplify_bind_expr): Likewise.
4916         (gimplify_var_or_parm_decl): If omp_notice_variable returned
4917         true, disregard DECL_VALUE_EXPR on the decl if any.
4918         (gimplify_expr_in_ctx): New.
4919         (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
4920         omp_add_variable, omp_notice_variable, omp_is_private
4921         gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
4922         gimplify_adjust_omp_clauses, gimplify_omp_parallel
4923         gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
4924         gimplify_omp_atomic_fetch_op, goa_stabilize_expr
4925         gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
4926         gimplify_omp_atomic): New.
4927         (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
4928         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
4929         OMP_CRITICAL and OMP_ATOMIC.
4930         (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
4931         * c-pragma.h (enum pragma_kind): Add
4932         PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
4933         PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
4934         PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
4935         PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
4936         PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
4937         PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
4938         PRAGMA_OMP_THREADPRIVATE.
4939         * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
4940         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
4941         OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
4942         OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
4943         OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
4944         OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
4945         OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
4946         OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
4947         OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
4948         * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
4949         * tree-ssa-dce.c (find_control_dependence): Do not assume that
4950         ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
4951         * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
4952         OpenMP directives.
4953         (struct nesting_info): Add field_map,
4954         suppress_expansion, debug_var_chain.
4955         (create_nesting_tree): Initialize them.
4956         (lookup_field_for_decl): Use field_map.
4957         (get_nonlocal_debug_decl, get_local_debug_decl): New.
4958         (convert_local_omp_clauses): New.
4959         (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
4960         (walk_body): Split out of walk_function.
4961         (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
4962         (convert_nonlocal_reference): Handle omp statements.
4963         (convert_local_reference): Likewise.
4964         (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
4965         (unnest_nesting_tree): New.
4966         (lower_nested_functions): Call it.
4967         (insert_field_into_struct): Make extern.
4968         (struct walk_stmt_info): Move to tree-gimple.h.
4969         (walk_stmts): Make extern.
4970         * omp-builtins.def: New file.
4971         * tree-iterator.c (expr_only): Clarify comment.
4972         * c-common.h (pushdecl_top_level, pushdecl,
4973         build_modify_expr, build_indirect_ref,
4974         c_finish_omp_master, c_finish_omp_critical,
4975         c_finish_omp_ordered, c_finish_omp_barrier,
4976         c_finish_omp_atomic, c_finish_omp_flush,
4977         c_finish_omp_for, c_split_parallel_clauses,
4978         omp_clause_default_kind, c_omp_sharing_predetermined,
4979         c_omp_remap_decl): Declare.
4980         * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
4981         (OBJS-common): Add omp-low.o.
4982         (c-omp.o, omp-low.o): Add.
4983         (gimplify.o): Add dependency on $(OPTABS_H).
4984         (GTFILES): Add omp-low.c.
4985         (gt-stringpool.h): Add.
4986         * tree-cfg.c (set_bb_for_stmt): Do not update the
4987         block-to-labels map if we are currently expanding to RTL.
4988         (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
4989         checks.
4990         Handle IDENTIFIER_NODE.
4991         (tree_verify_flow_info): Do not ICE when emitting error
4992         messages about invalid labels.
4993         (dump_function_to_file): Reset CFUN before emitting the body
4994         of the function.
4995         (debug_function): New.
4996         * passes.c (init_optimization_passes): Schedule
4997         pass_lower_omp.
4998         * langhooks-def.h (lhd_omp_predetermined_sharing,
4999         lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
5000         Declare.
5001         (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
5002         (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
5003         (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
5004         LANG_HOOKS_OMP_PREDETERMINED_SHARING,
5005         LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
5006         LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
5007         LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
5008         LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
5009         LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
5010         LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
5011         (LANG_HOOK_DECLS): Use them.
5012
5013 2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
5014             Richard Henderson  <rth@redhat.com>
5015             Jakub Jelinek  <jakub@redhat.com>
5016             Diego Novillo  <dnovillo@redhat.com>
5017
5018         * c-parser.c (pragma_omp_clause): Define.
5019         (c_parser_declaration_or_fndef): Document OpenMP syntax.
5020         (c_parser_compound_statement): Likewise.
5021         (c_parser_statement): Likewise.
5022         (c_parser_pragma): Handle omp pragmas.
5023         (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
5024         OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
5025         (c_parser_omp_clause_name, check_no_duplicate_clause,
5026         c_parser_omp_variable_list,
5027         c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
5028         c_parser_omp_clause_copyprivate,
5029         c_parser_omp_clause_default,
5030         c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
5031         c_parser_omp_clause_lastprivate,
5032         c_parser_omp_clause_nowait,
5033         c_parser_omp_clause_num_threads,
5034         c_parser_omp_clause_ordered, c_parser_omp_clause_private,
5035         c_parser_omp_clause_reduction,
5036         c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
5037         c_parser_omp_all_clauses, c_parser_omp_structured_block,
5038         c_parser_omp_atomic, c_parser_omp_barrier,
5039         c_parser_omp_critical, c_parser_omp_flush,
5040         c_parser_omp_for_loop, c_parser_omp_for,
5041         c_parser_omp_master, c_parser_omp_ordered,
5042         c_parser_omp_sections_scope, c_parser_omp_sections,
5043         c_parser_omp_parallel, c_parser_omp_single,
5044         c_parser_omp_construct, c_parser_omp_threadprivate): New.
5045         * c-pragma.c (init_pragma): Do omp pragma registration here.
5046         * c.opt (fopenmp): New flag.
5047
5048 2006-01-18  Eric Christopher  <echristo@apple.com>
5049
5050         * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
5051         * config/darwin.h (GOMP_SELF_SPECS): Define.
5052
5053 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
5054
5055         * rtl.h: Remove the prototype for reg_alloc.
5056
5057 2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5058
5059         PR target/25731
5060         * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
5061         hppa[12]*-*-hpux11*): Override default shared libgcc version for both
5062         sjlj and dwarf2 exception handling.
5063         * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
5064         Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
5065         * pa/pa.c (function_value): Treat complex and vector types as
5066         aggregates.
5067         (function_arg): Likewise.  Only pass scalar floats in the floating
5068         point argument registers.
5069         * pa/t-slibgcc-dwarf-ver: New file.
5070         * pa/t-slibgcc-sjlj-ver: New file.
5071         * pa/t-slibgcc-elf-ver: Delete file.
5072
5073 2006-01-19  Alan Modra  <amodra@bigpond.net.au>
5074
5075         * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
5076         unlikely_test_section_p test.
5077
5078 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
5079
5080         * mode-switching.c (optimize_mode_switching): Make it static.
5081         * basic-block.h: Remove the prototype for
5082         optimize_mode_switching.
5083
5084         * modulo-sched.c (sms_schedule): Make it static.
5085         * rtl.h: Remove the prototype for sms_schedule.
5086
5087         * postreload-gcse.c (gcse_after_reload_main): Make it static.
5088         * rtl.h: Remove the prototype for gcse_after_reload_main.
5089
5090         * reg-stack.c (reg_to_stack): Make it static.
5091         * rtl.h: Remove the prototype for reg_to_stack.
5092
5093         * regrename.c (regrename_optimize, copyprop_hardreg_forward):
5094         Make them static.
5095         * rtl.h: Remove the prototypes for regrename_optimize and
5096         copyprop_hardreg_forward.
5097
5098 2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>
5099
5100         * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
5101         alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
5102         Test against the appropriate null constant for the mode.
5103         If 'fixup_overlap' is true, swap the operands if they overlap.
5104         (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
5105         * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
5106         alpha_split_tmode_pair and adjust for above change.
5107         * config/alpha/alpha.md (movtf_internal): Adjust call to
5108         alpha_split_tfmode_pair and rely on it to swap the operands.
5109         (movti_internal): New insn and post-reload splitter.
5110         (movti): New expander.
5111
5112 2006-01-18  Philippe De Muyter  <phdm@macqel.be>
5113
5114         * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
5115         operands.
5116
5117 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
5118
5119         * rtlanal.c (global_reg_mentioned_p_1,
5120         global_reg_mentioned_p): Remove.
5121         * rtl.h: Remove the prototype for global_reg_mentioned_p.
5122
5123         * flow.c (initialize_uninitialized_subregs): Make it static.
5124         * rtl.h: Remove the prototype for
5125         initialize_uninitialized_subregs.
5126
5127         * function.c (instantiate_virtual_regs): Make it static.
5128         * function.h: Remove the prototype for
5129         instantiate_virtual_regs.
5130
5131         * regmove.c (regmove_optimize, combine_stack_adjustments):
5132         Make them static.
5133         * rtl.h: Remove the prototypes for regmove_optimize and
5134         combine_stack_adjustments.
5135
5136 2006-01-17  Roger Sayle  <roger@eyesopen.com>
5137
5138         * config/i386/i386.c (COSTS_N_BYTES): New macro.
5139         (size_cost): Encode costs in bytes so that a reg-reg addition is
5140         equivalent to COSTS_N_INSNS(1).
5141         (override_options): Use the size_cost.branch_cost as the default
5142         ix86_branch_cost when optimizing for size.
5143
5144 2006-01-18  Ben Elliston  <bje@au.ibm.com>
5145
5146         * Makefile.in (D32PBIT_FUNCS): New.
5147         (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
5148         (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
5149         D64PBIT_FUNCS and D128PBIT_FUNCS.
5150         (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
5151         * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
5152         D128PBIT are set.
5153         (decnumber_dep): Define.
5154         * doc/libgcc.texi (Decimal float library routines): New node.
5155         * config/dfp-bit.h, config/dfp-bit.c: New files.
5156
5157 2006-01-18  Ben Elliston  <bje@au.ibm.com>
5158
5159         * expr.c (emit_move_change_mode): Always adjust addresses, not
5160         just during reload.  Copy replacements only during reload.
5161         (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
5162         emit_move_via_integer.
5163
5164 2006-01-17  Shantonu Sen  <ssen@opendarwin.org>
5165
5166         * Makefile.in (check-%, check-consistency): Use $${srcdir}
5167         instead of $(srcdir) and ${srcdir}.
5168
5169 2006-01-17  Richard Earnshaw  <rearnsha@arm.com>
5170
5171         PR target/592
5172         PR middle-end/11135
5173         * arm.h (struct machine_function): Add pic_reg.
5174         * arm.c (arm_pic_register): Make unsigned.
5175         (arm_override_options): Only set arm_pic_register if
5176         TARGET_SINGLE_PIC_BASE.
5177         (use_return_insn): Only test for a pic register if it is fixed.
5178         (arm_compute_save_reg0_reg12_mask): Likewise.
5179         (thumb_compute_save_reg_mask): Likewise.
5180         (legitimate_pic_operand): Factor out some known invariants.
5181         (legitimize_pic_address): If we don't have a fixed pic register,
5182         then set up a pseudo in the function entry sequence.  Handle the
5183         pic base being in a pseudo.
5184         (arm_load_pic_register): Handle the pic register being in a pseudo.
5185         (arm_expand_prologue): Only set up the pic register if it is fixed.
5186         (thumb_expand_prologue): Likewise.
5187         * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
5188         (pic_load_addr_based_insn): Likewise.
5189         (builtin_setjmp_receiver): Don't restore the pic base if it isn't
5190         fixed.
5191
5192 2006-01-18  Ben Elliston  <bje@au.ibm.com>
5193
5194         * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
5195         decimal float modes for all floating point registers.
5196
5197         * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
5198         match_code "mem" with match_test "macho_lo_sum_memory_operand".
5199
5200 2006-01-17  Jakub Jelinek  <jakub@redhat.com>
5201
5202         PR c/25682
5203         * c-typeck.c (build_unary_op): Fold offsetof-like expressions
5204         even when the pointer is not NULL.
5205
5206 2006-01-16  Ian Lance Taylor  <ian@airs.com>
5207
5208         * common.opt (ftoplevel-reorder): New option.
5209         * cgraph.c (cgraph_asm_nodes): New global variable.
5210         (cgraph_asm_last_node): New static variable.
5211         (cgraph_order): New global variable.
5212         (cgraph_create_node): Set new order field.
5213         (cgraph_varpool_node): Likewise.
5214         (decide_is_variable_needed): Return true if not
5215         flag_toplevel_reorder.
5216         (cgraph_add_asm_node): New function.
5217         * cgraph.h (struct cgraph_node): Add order field.
5218         (struct cgraph_varpool_node): Add order field.
5219         (struct cgraph_asm_node): Define.
5220         (cgraph_asm_nodes, cgraph_order): Declare.
5221         (cgraph_add_asm_node): Declare.
5222         * cgraphunit.c (cgraph_varpool_assemble_decl): New static
5223         function.
5224         (cgraph_varpool_assemble_pending_decls): Call it.
5225         (cgraph_output_pending_asms): New static function.
5226         (cgraph_finalize_compilation_unit): Call it.
5227         (struct cgraph_order_sort): Define.
5228         (cgraph_output_in_order): New static function.
5229         (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
5230         !flag_toplevel_reorder case.
5231         * c-parser.c: Include "cgraph.h".
5232         (c_parser_asm_definition): Call cgraph_add_asm_node rather than
5233         assemble_asm.
5234         * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
5235         than -fno-unit-at-a-time.
5236         * doc/invoke.texi (Option Summary): Mention
5237         -fno-toplevel-reorder.
5238         (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
5239         -funit-at-a-time documentation.
5240
5241 2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
5242             Kazu Hirata  <kazu@codesourcery.com>
5243
5244         * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.
5245
5246 2006-01-17  Kazu Hirata  <kazu@codesourcery.com>
5247
5248         * Makefile.in (FUNCTION_H): New.  Use it instead of
5249         function.h throughout the file.
5250         * function.h: Include tree.h.
5251
5252 2006-01-17  Ben Elliston  <bje@au.ibm.com>
5253
5254         * recog.c: Separate some functions with whitespace.
5255
5256 2006-01-16  Richard Henderson  <rth@redhat.com>
5257
5258         Merge from gomp branch:
5259         * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
5260         * tree-inline.h (struct copy_body_data): Move from tree-inline.c
5261         and rename from struct inline_data.  Rename callee* to dst*;
5262         caller* to src*; add copy_decl hook, transform_call_graph_edges,
5263         transform_new_cfg, transform_return_to_modify, and
5264         transform_lang_insert_block flags; remove cloning_p, versioning_p,
5265         update_clones_p.
5266         (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
5267         (copy_decl_for_dup): Remove.
5268         * tree-inline.c (struct inline_data): Move to header.
5269         (insert_decl_map): Export.
5270         (remap_decl): Update for member name changes.  Use copy_decl hook.
5271         Allow for replacement to be a non-decl.  Remove dead code.
5272         (remap_type_1): Check for existing mapping.
5273         (remap_type): Export.
5274         (remap_decls): Update for member name changes.
5275         (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
5276         (copy_body, setup_one_parameter, declare_return_variable): Likewise.
5277         (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
5278         (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
5279         (tree_function_versioning, build_duplicate_type): Likewise.
5280         (copy_body_r): Likewise.  Export.
5281         (copy_decl_for_dup): Split into ...
5282         (copy_decl_for_dup_finish, copy_decl_to_var,
5283         copy_decl_no_change, copy_decl_maybe_to_var): ... these.
5284         (replace_ref_tree, inlining_p): Remove.
5285
5286 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
5287
5288         * ifcvt.c (if_convert): Make it static.
5289         * rtl.h: Remove the prototype for if_convert.
5290
5291         * local-alloc.c (local_alloc): Make it static.
5292         * rtl.h: Remove the prototype for local_alloc.
5293
5294         * loop.c (loop_optimize): Make it static.
5295         * cfgloop.h: Remove the prototype for loop_optimize.
5296         * rtl.h: Likewise.
5297
5298 2006-01-16  DJ Delorie  <dj@redhat.com>
5299
5300         * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
5301         mems.
5302
5303 2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5304
5305         * pa.md: Disparage copies between general and floating-point registers
5306         in 32-bit move patterns.
5307
5308 2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>
5309
5310         PR testsuite/25741
5311         * Makefile.in (check-%): Depend on site.exp instead of
5312         $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
5313         directories.
5314
5315 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
5316
5317         * global.c (global_alloc): Make it static.
5318         * rtl.h: Remove the prototype for global_alloc.
5319
5320 2006-01-16  Richard Guenther  <rguenther@suse.de>
5321
5322         * tree-ssa-alias.c (struct used_part): Add write_only field.
5323         (get_or_create_used_part_for): Initialize it to true.
5324         (create_overlap_variables_for): Don't create structure variables
5325         for structures that only are written to.
5326         (find_used_portions): Handle MODIFY_EXPR to track whether a
5327         structure is only written to.
5328
5329 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
5330
5331         * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
5332         static.
5333         * basic-block.h: Remove the prototype for
5334         partition_hot_cold_basic_blocks.
5335
5336 2006-01-16  Rafael Ãvila de EspÃï¿½ndola <rafael.espindola@gmail.com>
5337
5338         * cppspec.c (lang_specific_spec_functions): Remove.
5339         * gcc.c (lookup_spec_function): Use static_spec_functions directly.
5340         * gcc.h (lang_specific_spec_functions): Remove.
5341         * gccspec.c (lang_specific_spec_functions): Remove.
5342
5343 2006-01-16  Paolo Bonzini  <bonzini@gnu.org>
5344
5345         * combine.c (record_value_for_reg): Invalidate registers
5346         if INSN is null.
5347         (record_dead_and_set_regs_1): Likewise, by passing them to
5348         record_value_for_reg.
5349         (record_dead_and_set_regs): Invalidate stores made by a
5350         call.  We do not combine across a call, but we still
5351         relied on equivalences.
5352
5353 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
5354
5355         * tree-vrp.c (extract_range_from_binary_expr): Cope with
5356         vrp_int_const_binop returning non-constant nodes.
5357
5358 2006-01-16  Paul Brook  <paul@codesourcery.com>
5359
5360         * config/m68k/m68k.c (output_move_const_into_data_reg):
5361         Output correct mnemonic for mvz and mvs.
5362
5363 2006-01-16  Gabor Loki  <loki@gcc.gnu.org>
5364
5365         * rtl-factoring.c: Add sequence abstraction algorithm.
5366         * cfgcleanup.c (outgoing_edges_match): Extra checks.
5367         (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
5368         ABNORMAL edges.
5369         (block_has_preserve_label): New function.
5370         * common.opt: Register new pass.
5371         * Makefile.in: Ditto.
5372         * passes.c: Ditto.
5373         * timevar.def: Ditto.
5374         * tree-pass.h: Ditto.
5375         * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
5376         * rtl.h (make_jump_insn_raw): Add forward decl.
5377         * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.
5378
5379 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
5380             Roger Sayle  <roger@eyesopen.com>
5381
5382         * fold-const.c (fold_minmax): New static function.
5383         (fold_binary) <MIN_EXPR>: Call it.
5384         <MAX_EXPR>: Likewise.
5385         * stor-layout.c (place_field): Use DECL_SIZE consistently
5386         in the computation of the new record size.
5387
5388 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
5389
5390         * cse.c (cse_condition_code_reg): Make it static.
5391         * rtl.h: Remove the prototype for cse_condition_code_reg.
5392
5393         * combine.c (combine_instructions): Make it static.
5394         * rtl.h: Remove the prototype for combine_instructions.
5395
5396 2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5397
5398         PR target/25168
5399         * tree.c (get_file_function_name_long): Concatenate the first global
5400         object name with a string derived from the input filename of the object
5401         for type "F".
5402
5403 2006-01-16  Ben Elliston  <bje@au.ibm.com>
5404
5405         * config/i386/winnt-stubs.c: Update FSF address.
5406         * config/xtensa/ieee754-df.S: Ditto.
5407         * config/xtensa/ieee754-sf.S: Ditto.
5408
5409 2006-01-14  Ian Lance Taylor  <ian@airs.com>
5410
5411         * ifcvt.c (noce_init_if_info): New static function, broken out of
5412         noce_process_if_block.
5413         (noce_process_if_block): Call noce_init_if_info.
5414         (check_cond_move_block): New static function.
5415         (cond_move_process_if_block): New static function.
5416         (process_if_block): Call cond_move_process_if_block.
5417
5418 2006-01-15  Kazu Hirata  <kazu@codesourcery.com>
5419
5420         * cselib.c (hash_table): Rename to cselib_hash_table.
5421         (cselib_clear_table, discard_useless_values,
5422         remove_useless_values, cselib_lookup_mem, cselib_lookup,
5423         cselib_init, cselib_finish): Adjust uses of hash_table.
5424
5425 2006-01-14  Kazu Hirata  <kazu@codesourcery.com>
5426
5427         PR tree-optimization/25485
5428         * tree-vrp.c (extract_range_from_binary_expr): Handle cases
5429         where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
5430         is known to be false and true, respectively.
5431
5432 2006-01-14  Richard Guenther  <rguenther@suse.de>
5433
5434         PR tree-optimization/22548
5435         PR tree-optimization/22555
5436         PR tree-optimization/22501
5437         * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
5438         * params.def (salias-max-array-elements): New parameter.
5439         * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
5440         * doc/invoke.texi (salias-max-array-elements): Document.
5441         * tree-flow-inline.h (var_can_have_subvars): We also handle
5442         arrays now.
5443         * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
5444         COMPONENT_REF.
5445         * tree-ssa-structalias.c (params.h): Include.
5446         (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
5447         (find_func_aliases): Handle multiple constraints from ARRAY_REF.
5448         (get_constraint_for): For ADDR_EXPR operating on something
5449         containing an ARRAY_REF, add all subvars to the solution.
5450         (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
5451         * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
5452         for creating MUST_DEFs.
5453         (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.
5454
5455 2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>
5456
5457         * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
5458         functions.
5459         (number_of_iterations_ne, number_of_iterations_lt_to_ne,
5460         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
5461         number_of_iterations_le): New functions.
5462         (number_of_iterations_special): Removed.
5463         (number_of_iterations_exit): Do not use number_of_iterations_special.
5464         * tree.c (unsigned_type_for): Always return integer type.
5465
5466 2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
5467         Richard Guenther  <rguenther@suse.de>
5468
5469         PR rtl-optimization/24257
5470         * gcse.c (find_moveable_store): Only consider a store movable
5471         when the SET_SRC of the insn can be assigned to a register.
5472
5473 2006-01-14  Ian Lance Taylor  <ian@airs.com>
5474
5475         * tree.c (tree_not_class_check_failed): New function.
5476         * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
5477         (tree_not_class_check_failed): Declare.
5478
5479 2006-01-13  Ian Lance Taylor  <ian@airs.com>
5480
5481         * reload1.c (do_output_reload): Add assertion rejecting a
5482         CALL_INSN.
5483
5484 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
5485
5486         * combine.c (struct reg_stat): Add new fields truncation_label and
5487         truncated_to_mode.
5488         (record_value_for_reg): Reset truncated_to_mode.
5489         (record_truncated_value): New function.
5490         (check_promoted_subreg): Call it.  Rename to check_conversions.
5491         (combine_instructions): Rename check_promoted_subreg to
5492         check_conversions.
5493         (reg_truncated_to_mode): New function.
5494         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
5495         (gen_lowpart_or_truncate): New function.
5496         (force_to_mode): Use it instead of gen_lowpart.
5497
5498 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
5499
5500         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
5501         VAR is a tag, not its type tag.
5502
5503 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
5504
5505         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
5506         alternatives to match style of other entries.
5507         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
5508
5509 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
5510
5511         PR tree-optimization/25771
5512         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
5513         SSA_NAMES.
5514
5515 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
5516
5517         PR tree-opt/24365
5518         * tree-inline.c (declare_return_variable): If the return variable
5519         was marked as a non gimple complex, set the return slot variable
5520         to be a non gimple comple variable.
5521
5522 2006-01-13  Richard Guenther  <rguenther@suse.de>
5523
5524         * builtins.c (expand_builtin_sincos): New function.
5525         (expand_builtin_mathfn_3): Remove dead code, sin and cos
5526         do not set errno.
5527         (expand_builtin): Expand sincos using expand_builtin_sincos.
5528
5529 2006-01-12  DJ Delorie  <dj@redhat.com>
5530
5531         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
5532         shift counts, separate SI shifts for m32c vs m16c, pass shift type
5533         so that constant shifts can be split.
5534         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
5535         (m32c_valid_pointer_mode): Make static.
5536         (shift_gen_func_for): New.
5537         (m32c_prepare_shift): Use it.  Split large const shifts into
5538         multiple shifts.
5539         * config/m32c/predicates.md (shiftcount_operand): Allow more
5540         general operands.
5541         (longshiftcount_operand): New.
5542         * doc/md.texi (Machine Constraints): Document In6.
5543
5544 2006-01-13  Ben Elliston  <bje@au.ibm.com>
5545
5546         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
5547         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
5548         documentation.
5549
5550 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
5551
5552         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
5553         to try to avoid clobbering pieces of structures when we know
5554         something about the whole structure.
5555         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
5556
5557 2006-01-13  Ben Elliston  <bje@au.ibm.com>
5558
5559         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
5560         return in memory, as this is no limitation is no longer present.
5561
5562 2006-01-12  DJ Delorie  <dj@redhat.com>
5563
5564         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
5565         mova with fb, and for fb+0 -> An.
5566
5567         * config/m32c/mov.md (peephole2): Fix enabling logic.
5568
5569         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
5570         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
5571         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
5572         FINI_ARRAY_SECTION_ASM_OP): Define.
5573
5574         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
5575         variable.
5576         (m32c_legitimize_reload_address): New logic to reload FB to An.
5577         (m32c_output_reg_push): Add newline.
5578         (m32c_output_reg_pop): Likewise.
5579
5580 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
5581
5582         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
5583
5584 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
5585
5586         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
5587
5588 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
5589
5590         * config/sh/predicates.md (sh_rep_vec): Add parallel to
5591         match_code.
5592
5593 2006-01-11  Ben Elliston  <bje@au.ibm.com>
5594
5595         * rtlanal.c (find_reg_note): Assert insn is not null.
5596
5597 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
5598
5599         * df-scan.c (df_hard_reg_init): Move declaration of i outside
5600         ifdef.
5601
5602 2006-01-11  Jeff Law  <law@redhat.com>
5603
5604         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
5605         hold edge pairs.
5606         (mark_threaded_blocks, register_jump_thread): New functions.
5607         (thread_through_all_blocks): Remove unwanted argument.  No
5608         longer rely on e->aux to communicate thread target info.
5609         Call mark_threaded_blocks.  Release the threaded_blocks
5610         bitmap and threaded_edges vector when complete.
5611         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
5612         (threaded_blocks): Remove.
5613         (tree_ssa_dominator_optimize): Remove initialization and
5614         finalization of threaded_blocks.  Simplify call to
5615         thread_through_all_blocks.
5616         (thread_across_edge): Call register_jump_thread rather than
5617         storing thread information into e->aux.
5618         (free_all_edge_infos): Simplify now that e->aux is no longer
5619         used to communicate with thread_through_all_blocks.
5620         * tree-flow.h (thread_through_all_blocks): Update prototype.
5621         (register_jump_thread): Prototype.
5622
5623 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
5624
5625         * df-core.c (df_compact_blocks, df_bb_replace): Use
5626         SET_BASIC_BLOCK instead of BASIC_BLOCK.
5627
5628 2006-01-11  Richard Guenther  <rguenther@suse.de>
5629
5630         PR tree-optimization/25734
5631         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
5632         stop propagation after successful propagation to the LHS.
5633
5634 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
5635
5636         * basic-block.h (control_flow_graph): Change the type of
5637         x_basic_block_info to VEC(basic_block,gc) *.
5638         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
5639         basic_block_info.
5640         (SET_BASIC_BLOCK): New.
5641         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
5642         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
5643         * cfgbuild.c (find_basic_blocks): Likewise.
5644         * cfglayout.c (fixup_reorder_chain): Likewise.
5645         * cfgrtl.c (create_basic_block_structure,
5646         rtl_create_basic_block): Likewise.
5647         * ifcvt.c (find_if_case_1): Likewise.
5648         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
5649         Likewise.
5650
5651 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
5652
5653         * Makefile.in: Removed rotted odf.c entry.
5654
5655 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
5656
5657         PR target/25706
5658         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
5659         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
5660         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
5661         output pattern modifier, not %e.
5662         * config/cris/cris.c (cris_op_str): Update comment about pattern
5663         modifier.
5664         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
5665         before falling through into...
5666         <case 'E'>: Redefined from old 'e' case.
5667
5668 2006-01-11  Jan Hubicka  <jh@suse.cz>
5669
5670         PR target/25042
5671         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
5672
5673 2006-01-11  Jan Hubicka  <jh@suse.cz>
5674
5675         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
5676         * i386.c (x86_decompose_lea): Kill.
5677         (ix86_rtx_costs): Kill.
5678
5679 2006-01-11  Jan Hubicka  <jh@suse.cz>
5680
5681         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
5682         * cgraph.h (cgraph_node): Add inline_decl.
5683         (cgraph_insert_node_to_hashtable): Declare.
5684         (save_inline_function_body): Declare.
5685         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
5686         clones.
5687         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
5688         (cgraph_function_versioning): Update call of tree_function_versioning.
5689         (save_inline_function_body): New function.
5690         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
5691         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
5692         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
5693         (cgraph_default_inline_p): Likewise.
5694         (cgraph_decide_inlining_incrementally): Likewise.
5695         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
5696         (copy_bb): Kill saving; do updating of clones.
5697         (copy_cfg_body): Kill saving.
5698         (initialize_inlined-parameters): Likewise.
5699         (expand_call_inline): Likewise.
5700         (save_body): Kill.
5701         (tree_function_versioning): New parameter "update_clones".
5702         (inlining_p): Kill saving.
5703         * tree-inline.h (tree_function_versioning): Update prototype.
5704         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
5705         saving.
5706
5707 2006-01-11  Ian Lance Taylor <ian@airs.com>
5708
5709         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
5710         Allow undoing set of machine mode.
5711         (do_SUBST): Use enums instead of is_int.
5712         (do_SUBST_MODE): New function.
5713         (SUBST_MODE): New macro.
5714         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
5715         reg and trying to replace reg_regno_rtx with a new register.
5716         (undo_all): Use new enums, handle undoing a PUT_MODE change.
5717         (simplify_set): Use SUBST_MODE.
5718         (distribute_notes): Remove code that tried to update reg notes
5719         for regno_reg_rtx changes.
5720
5721 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
5722
5723         PR tree-optimization/23109
5724         PR tree-optimization/23948
5725         PR tree-optimization/24123
5726
5727         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
5728         * tree-cfg.c (single_noncomplex_succ): New.
5729         * tree-flow.h (single_noncomplex_succ): Declare it.
5730         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
5731         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
5732         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
5733         insert_bb, register_division_in, insert_reciprocals,
5734         replace_reciprocal, free_bb): New.
5735         (execute_cse_reciprocals_1): Rewritten.
5736         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
5737         Do not commit any edge insertion.  Always compute dominators and
5738         create the allocation pool.
5739         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
5740         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
5741         * targhooks.c (default_min_divistions_for_recip_mul): New.
5742         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
5743         * passes.c (init_optimization_passes): Run recip after tree loop
5744         optimizations.
5745         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
5746
5747 2006-01-11  Danny Berlin <dberlin@dberlin.org>
5748             Kenneth Zadeck <zadeck@naturalbridge.com>
5749
5750         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
5751         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
5752         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
5753         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
5754         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
5755         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
5756         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
5757         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
5758         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
5759         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
5760         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
5761         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
5762         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
5763         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
5764         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
5765         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
5766         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
5767         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
5768         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
5769         DF_SCAN_POST_ALLOC): New macros.
5770         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
5771         df_free_bb_function, df_local_compute_function, df_init_function,
5772         df_dataflow_function, df_confluence_function_0,
5773         df_confluence_function_n, df_transfer_function,
5774         df_finalizer_function, df_free_function, df_dump_problem_function,
5775         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
5776         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
5777         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
5778         df_urec_bb_info, ) New types.
5779         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
5780         variables.
5781         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
5782         df_analyze_simple_change_some_blocks,
5783         df_analyze_simple_change_one_block, df_compact_blocks,
5784         df_bb_replace, df_bb_regno_last_use_find,
5785         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
5786         df_insn_regno_def_p, df_find_def, df_find_use,
5787         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
5788         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
5789         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
5790         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
5791         debug_df_chain, df_get_dependent_problem, df_chain_create,
5792         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
5793         df_grow_bb_info, df_chain_dump, df_print_bb_index,
5794         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
5795         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
5796         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
5797         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
5798         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
5799         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
5800         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
5801         df_ref_remove, df_insn_refs_delete, df_refs_delete,
5802         df_reorganize_refs, df_set_state, df_hard_reg_init,
5803         df_read_modify_subreg_p) New public functions.
5804         * df-core.c: The core dataflow solver and glue routines for rtl
5805         dataflow.
5806         (df_init, df_add_problem, df_set_blocks, df_finish,
5807         df_hybrid_search_forward, df_hybrid_search_backward,
5808         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
5809         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
5810         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
5811         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
5812         df_reg_defined, df_find_use, df_reg_used, df_dump,
5813         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
5814         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
5815         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
5816         debug_df_useno, reset_df_after_reload): New functions.
5817         * df-scan.c: The scanning fuctions, once in df.c, completely
5818         rewritten so that they now fully model the functionality of
5819         register usage at the backend.
5820         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
5821         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
5822         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
5823         df_grow_insn_info, df_rescan_blocks, df_ref_create,
5824         df_get_artificial_defs, df_get_artificial_uses,
5825         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
5826         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
5827         df_refs_delete, df_reorganize_refs, df_set_state,
5828         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
5829         df_def_record_1, df_defs_record, df_uses_record,
5830         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
5831         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
5832         df_record_exit_block_uses, df_hard_reg_init): New functions.
5833
5834         * df-problems.c: Seven concrete dataflow problems that use the
5835         scanning in df-scan.c and are solved by the engine in df-core.c.
5836         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
5837         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
5838         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
5839         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
5840         df_ru_free_bb_info, df_ru_alloc,
5841         df_ru_bb_local_compute_process_def,
5842         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
5843         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
5844         df_ru_transfer_function, df_ru_free, df_ru_dump,
5845         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
5846         df_rd_free_bb_info, df_rd_alloc,
5847         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
5848         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
5849         df_rd_transfer_function, df_rd_free, df_rd_dump,
5850         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
5851         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
5852         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
5853         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
5854         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
5855         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
5856         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
5857         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
5858         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
5859         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
5860         df_urec_mark_reg_change, df_urec_check_earlyclobber,
5861         df_urec_mark_reg_use_for_earlyclobber,
5862         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
5863         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
5864         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
5865         df_urec_dump, df_urec_add_problem, df_chain_alloc,
5866         df_chain_create_bb_process_use, df_chain_create_bb,
5867         df_chain_finalize, df_chain_free, df_chains_dump,
5868         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
5869         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
5870         df_reg_lifetime): New functions.
5871         * df.c: Deleted file.
5872         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
5873         consistent with new df api.
5874         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
5875         rest_of_handle_sms): Ditto.
5876         * web.c (unionfind_union, union_defs, entry_register, web_main):
5877         Ditto.
5878         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
5879         invariant_expr_equal_p, find_defs, check_dependencies,
5880         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
5881         free_inv_motion_data, move_loop_invariants): Ditto.
5882         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
5883         Update dependencies.
5884         (odf.c): Added defective entry that was deleted later in day.
5885         * sched-deps.c (sched_analyze_1): Ditto.
5886
5887 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
5888
5889         * tree-ssa-operands.c (get_expr_operands): Record addressable
5890         variables directly.  Do not call add_stmt_operands for CONST_DECLs
5891         and ARRAY_DECLs.
5892         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
5893         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
5894
5895 2006-01-11  Ben Elliston  <bje@au.ibm.com>
5896
5897         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
5898         function returns true in the positive case.
5899
5900 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5901
5902         PR target/20754
5903         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
5904         for SI, DI, SF and DF modes.  Add alternatives to copy between
5905         general and floating point registers to the 32-bit patterns.
5906         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
5907         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
5908         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
5909         generating 64-bit code.
5910         * config/pa/pa.c (output_move_double): Handle copies between general
5911         and floating registers.
5912
5913 2006-01-10  Stuart Hastings  <stuart@apple.com>
5914
5915         * config/i386/i386.md (set_got): Update.
5916         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
5917         (builtin_setjmp_receiver): Mach-O support.
5918         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
5919         (GOT_SYMBOL_NAME): Define.
5920         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
5921         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
5922         * config/i386/i386.c (override_options): Revise for Darwin.
5923         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
5924         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
5925         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
5926         * config/i386/i386-protos.h (output_set_got): Likewise.
5927         * config/darwin.c (machopic_legitimize_pic_address): Update
5928         regs_ever_live[].
5929
5930 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
5931
5932         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
5933         when MODE isn't BLKmode.
5934
5935 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
5936
5937         PR rtl-optimization/25367
5938         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
5939
5940 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
5941
5942         PR target/25718
5943         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
5944         for a negative bound.
5945
5946 2006-01-10  Richard Guenther  <rguenther@suse.de>
5947
5948         * tree-ssa-structalias.c (get_constraint_for_component_ref):
5949         Never override with anything constraint.
5950
5951 2006-01-10  Jan Beulich  <jbeulich@novell.com>
5952
5953         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
5954         256 bits when optimize_size.
5955
5956 2006-01-10  Jan Beulich  <jbeulich@novell.com>
5957
5958         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
5959         MASK_ALIGN_DOUBLE.
5960         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
5961         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
5962         arguments.
5963
5964 2006-01-10  Ben Elliston  <bje@au.ibm.com>
5965
5966         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
5967         float modes.
5968         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
5969         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
5970         (USE_FP_FOR_ARG): Reject decimal float modes.
5971         (function_arg_advance): Likewise.
5972         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
5973         (rs6000_handle_altivec_attribute): Do not permit decimal floating
5974         point types in AltiVec vectors.
5975         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
5976         (rs6000_libcall_value): Likewise.
5977
5978 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
5979
5980         * config/xtensa/ieee754-df.S: New file.
5981         * config/xtensa/ieee754-sf.S: New file.
5982         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
5983         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
5984         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
5985
5986 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
5987
5988         * config/sh/predicates.md (binary_float_operator,
5989         binary_logical_operator, commutative_float_operator,
5990         equality_comparison_operator, greater_comparison_operator,
5991         less_comparison_operator, logical_operator,
5992         noncommutative_float_operator, shift_operator,
5993         symbol_ref_operand, unary_float_operator): Remove redundant
5994         conditionals.
5995
5996 2006-01-09  Jeff Law  <law@redhat.com>
5997
5998         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
5999         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
6000         now unused arguments.  Callers updated.
6001         (eliminate_redundant_computations): Remove now unused arguments,
6002         callers updated.
6003         (local_fold): Remove, no longer used.
6004         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
6005         and moved to...
6006         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
6007         (simplify_cond): New function.
6008         (forward_propagate_into_cond): Call simplify_cond.
6009
6010 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
6011
6012         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
6013         (*vec_extractv2di_1_sse): New.
6014
6015 2006-01-09  Ben Elliston  <bje@au.ibm.com>
6016
6017         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
6018
6019 2006-01-08  Richard Guenther  <rguenther@suse.de>
6020
6021         * tree-ssa-structalias.c (get_constraint_for): Remove
6022         anyoffset argument.
6023         (get_constraint_for_component_ref): Likewise.
6024         (do_deref): Likewise.
6025         (get_constraint_for): Likewise.
6026         (do_structure_copy): Likewise.
6027         (handle_ptr_arith): Likewise.
6028         (find_func_aliases): Likewise.  Remove unused need_anyoffset
6029         variable.
6030
6031 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
6032             Kaz Kojima  <kkojima@gcc.gnu.org>
6033
6034         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
6035         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
6036         (EXTRA_CONSTRAINT_C16): Remove.
6037         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
6038         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
6039         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
6040         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
6041         constants of SHmedia.  Handle nested constant expressions of
6042         SHmedia correctly.
6043         (andcosts): Fix the costs for SHmedia constants.
6044         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
6045         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
6046         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
6047         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
6048         (movv4hi_i, movv2si_i): Likewise.
6049         (movsi_const): Adjust the second operand of ior so to match with
6050         the Csu constraint.
6051         (movdi_const, movdi_const_32bit): Likewise.
6052         (movdi_const_16bit+1): Don't sign-extend LOW.
6053         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
6054         step.
6055         (*double_shori): Fix the split condition.  Use GEN_INT instead
6056         of get_int_mode calls.  Mask lower 16-bit of the argument of
6057         the last GEN_INT.
6058         (sym2GOTPLT): Remove.
6059         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
6060         gen_rtx_UNSPEC.
6061         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
6062         instead of EXTRA_CONSTRAINT_C16.
6063
6064 2006-01-07  Ian Lance Taylor  <ian@airs.com>
6065             David Edelsohn  <edelsohn@gnu.org>
6066
6067         PR rtl-optimization/25662
6068         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
6069         for constant operands instead of simplify_gen_binary.
6070         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
6071         after trying simplify_binary_operation
6072
6073 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
6074
6075         * tree.c (iterative_hash_expr): Hash decls based on UID.
6076
6077 2006-01-06  Eric Christopher  <echristo@apple.com>
6078
6079         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
6080         (TARGET_UNWIND_EMIT): Fix spelling.
6081         * target.h (gcc_target): Add except_table_label.
6082         * except.c (output_function_exception_table): Use.
6083         * varasm.c (default_emit_except_table_label): New.
6084         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
6085         define.
6086         (asm_out): Add here.
6087         * output.h (default_emit_except_table_label): Prototype.
6088         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
6089         * config/darwin.c (darwin_emit_except_table_label): Define.
6090         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
6091
6092 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
6093
6094         PR tree-optimization/18527
6095         * tree-ssa-loop-niter.c (number_of_iterations_cond,
6096         number_of_iterations_special, number_of_iterations_exit):
6097         Move base and step of an iv to a single structure.  Add
6098         no_overflow flag, and use it in # of iterations analysis.
6099         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
6100         folded_casts argument.
6101         (simple_iv): Pass base and step in a structure.  Set no_overflow
6102         flag.
6103         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
6104         Evaluate expensiveness of computing # of iterations instead of
6105         the final expression.
6106         * tree-scalar-evolution.h (affine_iv): New structure.
6107         (simple_iv): Declaration changed.
6108         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
6109         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
6110         find_givs_in_stmt): Changed due to simple_iv change.
6111
6112 2006-01-06  Jeff Law  <law@redhat.com>
6113
6114         PR ada/24994
6115         * tree-cfg.c (bsi_replace): Rename final argument from
6116         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
6117         change (stmt -> orig_stmt).
6118         * tree-eh.c (verify_eh_throw_stmt_node): New function.
6119         (bsi_remove): Add new argument.  Remove EH information
6120         if requested.
6121         (verify_eh_throw_table_statements): New function.
6122         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
6123         updated.
6124         * tree-optimize.c (execute_free_cfg_annotations): Verify
6125         the EH throw statement table after removing annotations.
6126         * except.h (verify_eh_throw_table_statements): Prototype.
6127         * tree-flow.h (bsi_remove): Update prototype.
6128         * tree-vrp.c (remove_range_assertions): Add new argument to
6129         bsi_remove call.
6130         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
6131         * tree-complex.c (expand_complex_div_wide): Likewise.
6132         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
6133         * tree-tailcall.c (eliminate_tailcall): Likewise.
6134         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
6135         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
6136         * tree-nrv.c (tree_nrv): Likewise.
6137         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
6138         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
6139         (combine_blocks): Likewise.
6140         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
6141         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
6142         (cleanup_control_flow): Likewise.
6143         (remove_forwarder_block): Likewise.
6144         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
6145         * tree-sra.c (sra_replace): Likewise.
6146         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
6147         (forward_propagate_single_use_vars): Likewise.
6148         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
6149         * tree-inline.c (expand_call_inline): Likewise.
6150         * tree-vect-transform.c (vect_transform_loop): Likewise.
6151         * tree-outof-ssa.c (rewrite_trees): Likewise.
6152         * tree-cfg.c (make_goto_expr_edges): Likewise.
6153         (cleanup_dead_labels): Likewise.
6154         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
6155         (bsi_move_before, bsi_move_after): Likewise.
6156         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
6157         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
6158
6159 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
6160
6161         PR tree-opt/25528
6162         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
6163         and IMAGPART_EXPR.
6164         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
6165         on non gimple variables.  Also add checks at the top for decls and
6166         mtags.
6167         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
6168         complex types.
6169         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
6170         and IMAGPART_EXPR for creating MUST_DEFs.
6171         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
6172         and NAME_MEMORY_TAG separately from the DECLs.
6173
6174 2006-01-06  Richard Guenther  <rguenther@suse.de>
6175
6176         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
6177         annotation, if necessary.
6178         * tree-ssa-pre.c (create_expression_by_pieces): Remove
6179         redundant calls to update_stmt.
6180         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
6181         Likewise.
6182
6183 2006-01-05  Richard Henderson  <rth@redhat.com>
6184
6185         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
6186
6187 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
6188
6189         * c-typeck.c: Update copyright date.
6190
6191 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
6192
6193         * c-typeck.c (build_c_cast): Always warn when casting
6194         from a pointer to an integer of different size, even if
6195         the node was constant.
6196
6197 2006-01-05  Richard Guenther  <rguenther@suse.de>
6198
6199         PR tree-optimization/22555
6200         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
6201         if one structure field is an array.
6202         * tree-ssa-operands.c (get_expr_operands): Continue scanning
6203         operands even if we found a subvar, but ignore VOPs in this
6204         case.
6205         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
6206         for renaming.
6207         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
6208
6209 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
6210
6211         PR middle-end/24998
6212         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
6213
6214 2006-01-05  Richard Guenther  <rguenther@suse.de>
6215             Diego Novillo  <dnovillo@redhat.com>
6216
6217         * tree-pass.h (TODO_remove_unused_locals): Define.
6218         * gimple-low.c (expand_var_p, remove_useless_vars,
6219         pass_remove_useless_vars): Remove.  Update all users.
6220         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
6221         (remove_unused_locals): New function.
6222         * tree-flow.h (remove_unused_locals): Declare.
6223         * passes.c (execute_todo): Call remove_unused_locals if
6224         TODO_remove_unused_locals is set.
6225         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
6226         * tree-ssa-dce.c (pass_dce): Likewise.
6227         * tree-outof-ssa.c (pass_del_ssa): Likewise.
6228
6229 2006-01-05  Richard Guenther  <rguenther@suse.de>
6230
6231         * tree-flow.h (struct fieldoff): Decompose field to
6232         type, size and decl.
6233         * tree-ssa-alias.c (create_sft): Take type as parameter.
6234         (create_overlap_variables_for): Store type, size and decl
6235         in the fieldoff structure.
6236         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
6237         of struct fieldoff.
6238         (push_fields_onto_fieldstack): Likewise.
6239         (create_variable_info_for): Likewise.  Use offset for the
6240         SFT name if the decl is not available.
6241
6242 2006-01-04  Paul Brook  <paul@codesourcery.com>
6243
6244         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
6245
6246 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
6247
6248         * lambda-code.c (can_put_in_inner_loop): Relax
6249         restrictions.
6250         (can_put_after_inner_loop): New function.
6251         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
6252         (perfect_nestify): Change to make copies and modify uses.
6253
6254 2006-01-04  Richard Henderson  <rth@redhat.com>
6255
6256         Merge from gomp branch:
6257         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
6258         via integer constant.
6259         (pragma_lex): Remove.
6260         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
6261         rather than parsing it.
6262         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
6263         handle_pragma_extern_prefix): Add %< %> quotes.
6264         (registered_pragmas): New.
6265         (c_register_pragma_1): New.
6266         (c_register_pragma): Use it.
6267         (c_register_pragma_with_expansion): Likewise.
6268         (c_invoke_pragma_handler): New.
6269         (init_pragma): Use cpp_register_deferred_pragma directly for
6270         pch_preprocess.
6271         * c-pragma.h (enum pragma_kind): New.
6272         (pragma_handler): New.
6273         (c_invoke_pragma_handler): Declare.
6274         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
6275         CPP_PRAGMA_EOL.
6276         * c-common.h (c_common_pch_pragma): Update decl.
6277         * Makefile.in (c-parser.o): Update dependencies.
6278         (GTFILES): Add c-pragma.h.
6279         * c-parser.c (struct c_token): Add pragma_kind.
6280         (struct c_parser): Add in_pragma.
6281         (c_lex_one_token): Always initialize keyword and pragma_kind.
6282         Extract data for CPP_PRAGMA.
6283         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
6284         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
6285         Don't allow CPP_PRAGMA_EOL if in_pragma.
6286         (c_parser_consume_pragma): New.
6287         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
6288         (c_parser_skip_to_end_of_parameter): Likewise.
6289         (c_parser_skip_to_end_of_block_or_statement): Likewise.
6290         (c_parser_skip_to_pragma_eol): New.
6291         (c_parser_external_declaration): Handle CPP_PRAGMA.
6292         (c_parser_compound_statement_nostart): Likewise.
6293         (c_parser_statement_after_labels): Likewise.
6294         (c_parser_pragma): New.
6295         (pragma_lex): Likewise.
6296         (c_parser_pragma_pch_preprocess): New.
6297         (c_parser_new): Merge into ...
6298         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
6299
6300 2006-01-04  Jeff Law  <law@redhat.com>
6301
6302         PR ada/24994
6303         * tree-cfg.c (bsi_replace): Remove the original statement
6304         from the EH throw statement table.
6305
6306 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
6307
6308         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
6309         make the prototype extern "C" and add throw ().
6310
6311         PR target/25554
6312         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
6313         and pos non-negative and pos + len <= 32.
6314         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
6315         drop pos + len < HOST_BITS_PER_WIDE_INT test.
6316         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
6317
6318         PR c/25559
6319         * c-common.c (handle_vector_size_attribute): Reject zero vector size
6320         as well as sizes not multiple of component size.
6321
6322         PR debug/25562
6323         * function.c (instantiate_expr): New function.
6324         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
6325         walk its DECL_VALUE_EXPR with instantiate_expr.
6326
6327         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
6328         DW_OP_deref{,_size} if address isn't going to be added.
6329
6330 2006-01-04  Ben Elliston  <bje@au.ibm.com>
6331
6332         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
6333         * config/fp-bit.c: Likewise.
6334
6335 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
6336
6337         * dominance.c: Add comment about why we use DFS numbering
6338         of dominance tree.
6339
6340 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
6341             Richard Henderson  <rth@redhat.com>
6342
6343         Merge from gomp-branch:
6344         * varasm.c (assemble_variable): Handle thread-local COMMON data.
6345         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
6346
6347 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
6348
6349         PR rtl-optimization/25578
6350         * combine.c (combine_simplify_rtx, force_to_mode): Don't
6351         pass a parameter to simplify_shift_const if changing ASHIFTRT
6352         to LSHIFTRT.
6353
6354 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
6355
6356         * builtins.c (get_builtin_sync_mem): New function.
6357         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
6358         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
6359         Call get_builtin_sync_mem to generate mem rtx.
6360
6361 2006-01-03  Richard Guenther  <rguenther@suse.de>
6362
6363         PR c/25183
6364         * stmt.c (add_case_node): Make sure to clear overflow flags
6365         from ranges.
6366
6367 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
6368
6369         Merge from gomp-branch.
6370         * config/sparc/sync.md: New file.
6371         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
6372         UNSPECV_LDSTUB): New constants.
6373         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
6374         * config/sparc/predicates.md (memory_reg_operand): New predicate.
6375         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
6376         prototype.
6377
6378 2006-01-03  Roger Sayle  <roger@eyesopen.com>
6379
6380         * combine.c (reg_subword_p): New predicate to test whether the
6381         destination of a set refers to a subword/piece of a register.
6382         (try_combine): Generalize the code to merge the setting of a
6383         pseudo to a constant followed by a set of a subword of that
6384         register to a constant.
6385
6386 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
6387
6388         * basic-block.h (control_flow_graph): Change the type of
6389         x_label_to_block_map to VEC(basic_block,gc) *.
6390         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
6391         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
6392
6393         * tree-ssa-propagate.c (cfg_blocks): Change the type to
6394         VEC(basic_block,heap) *.
6395         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
6396         ssa_prop_fini): Adjust the uses of cfg_blocks.
6397
6398 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
6399
6400         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
6401         COMPONENT_REFs.
6402         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
6403         hashing trees instead of a pointer hash.
6404         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
6405         compare for MEM_EXPR.
6406
6407         PR rtl-optimization/25130
6408         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
6409         when comparing MEMs for GCSE
6410
6411 2006-01-03  Ben Elliston  <bje@au.ibm.com>
6412
6413         * targhooks.h (default_decimal_float_supported_p): Declare.
6414         * targhooks.c (default_decimal_float_supported_p): Define.
6415         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
6416         `default_decimal_float_supported_p'.
6417         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
6418
6419 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
6420
6421         * combine.c (apply_distributive_law <SUBREG>): Check
6422         TRULY_NOOP_TRUNCATION.
6423
6424 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
6425
6426         * dwarf2out.c (have_switched_text_section): Delete.
6427         (have_multiple_function_sections): New.
6428         (have_location_lists): Make 'bool'.
6429         (add_AT_loc_list): Use 'true' not '1'.
6430         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
6431         (output_loc_list): Use have_multiple_function_sections.
6432         (output_ranges): Likewise.
6433         (dwarf2out_begin_function): Set have_multiple_function_sections if
6434         necessary.
6435         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
6436         Check function_section rather than DECL_SECTION_NAME.
6437         (dwarf2out_finish): Use have_multiple_function_sections.
6438         Don't clear have_location_lists.
6439
6440 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
6441             Jan Hubicka  <jh@suse.cz>
6442
6443         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
6444         case of conditional jump jumping to the next instruction.
6445         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
6446         cases of conditional jump jumping to the next instruction.
6447
6448 2006-01-02  Jan Hubicka  <jh@suse.cz>
6449
6450         * i386.c (*_cost): Add COSTS_N_INSNS.
6451         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
6452
6453 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
6454
6455         PR target/25259
6456         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
6457
6458 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
6459
6460         * config/arm/arm.c (all_fpus): Fix comment typo.
6461         * config/darwin.c: Likewise.
6462         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
6463         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
6464         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
6465
6466 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
6467
6468         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
6469         (rs6000_split_compare_and_swapqhi): New.
6470         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
6471         (sync_compare_and_swapqhi_internal): New.
6472         * config/rs6000/rs6000-protos.h: Declare.