gcc/ChangeLog

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