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* regclass.c (reg_scan_update): Remove.
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
index 84c278d..5491d5b 100644 (file)
@@ -1,3 +1,849 @@
+2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
+
+       * regclass.c (reg_scan_update): Remove.
+       (reg_scan_mark_refs): Remove the last argument.
+       * rtl.h: Remove the prototype for reg_scan_update.
+
+2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
+
+       * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
+       combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
+       config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
+       config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
+       df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
+       loop-invariant.c, omp-low.c, opts.c, passes.c,
+       rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
+       tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
+       tree-ssa-structalias.c, tree-ssa-threadedge.c,
+       tree-ssa-threadupdate.c, tree-vect-patterns.c,
+       tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
+       unwind-dw2.c: Fix comment typos.  Follow spelling conventions.
+
+2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
+
+       * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
+       * dwarf2out.h: Remove the prototype for
+       dwarf2out_add_library_unit_info.
+
+2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
+
+       * tree.c (add_var_to_bind_expr): Remove.
+       * tree.h: Remove the prototype for add_var_to_bind_expr.
+
+2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
+
+       * regclass.c (n_non_fixed_regs): Remove.
+       (init_reg_sets_1, globalize_reg): Remove all uses of
+       n_non_fixed_regs.
+       * hard-reg-set.h: Remove the extern for n_non_fixed_regs.
+
+2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
+
+       * rtlanal.c (insns_safe_to_move_p): Remove.
+       * rtl.h: Remove the prototype for insns_safe_to_move_p.
+
+2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
+
+       * expmed.c (expand_mult_add): Remove.
+       * expr.h: Remove the prototype for expand_mult_add.
+
+2006-03-04  Jakub Jelinek  <jakub@redhat.com>
+
+       * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
+       and REG_SAVED_VAL_EXP constants.
+       * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
+       (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
+       Handle regs stored by value.
+       (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
+       (execute_cfa_program): Handle DW_CFA_val_offset,
+       DW_CFA_val_offset_sf and DW_CFA_val_expression.
+       (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
+       value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
+       (uw_install_context_1): Handle target regs stored by value.
+
+2006-03-03  Daniel Berlin  <dberlin@dberlin.org>
+
+       * tree-sra.c (tree_sra): Return todoflags;
+       (generate_one_element): Set TODO_update_smt_usage if needed.
+       (pass_sra): Remove TODO_update_smt_usage.
+       * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
+       parameter.
+       (tree_ssa_forward_propagate_single_use_vars): Return
+       TODO_update_smt_usage if we need to update SMT usage.
+       (pass_forwprop): Remove TODO_update_smt_usage.
+       
+2006-03-03  Diego Novillo  <dnovillo@redhat.com>
+
+       * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
+       (correct_use_link): Remove reference to get_stmt_operands.
+       (update_stmt_operands): Likewise.
+       (get_modify_expr_operands): New function factored out of
+       parse_ssa_operands and get_expr_operands.
+       Try to create V_MUST_DEFs for LHS by default.
+       (get_expr_operands) <case MODIFY_EXPR>: Call
+       get_modify_expr_operands.
+       <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
+       <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
+       (parse_ssa_operands) <case MODIFY_EXPR>: Call
+       get_modify_expr_operands.
+
+2006-03-03  Kazu Hirata  <kazu@codesourcery.com>
+
+       * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
+       * tree-flow.h: Remove the prototype for
+       referenced_var_lookup_if_exists.
+
+2006-03-03  Steve Ellcey  <sje@cup.hp.com>
+
+       PR rtl-optimization/26345
+       PR target/19061
+       * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
+
+2006-03-03  Roger Sayle  <roger@eyesopen.com>
+
+       PR tree-optimization/26524
+       * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
+       fold_convert to create a constant of the appropriate type.
+
+2006-03-03  Richard Sandiford  <richard@codesourcery.com>
+
+       * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
+       SYMBOL_REF_IN_BLOCK_P.
+       * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
+       of SYMBOL_FLAG_IN_BLOCK.
+       * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
+       instead of SYMBOL_REF_IN_BLOCK_P.
+       * explow.c (use_anchored_address): Likewise.
+       * rtl.c (rtx_size): Likewise.
+       * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
+       instead of SYMBOL_FLAG_IN_BLOCK.
+       (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
+       SYMBOL_REF_IN_BLOCK_P.
+       (assemble_variable): Likewise.
+       (output_constant_def_contents): Likewise.
+       (output_constant_pool): Likewise.
+       (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
+       instead of SYMBOL_FLAG_IN_BLOCK.
+       * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
+       SYMBOL_REF_IN_BLOCK_P.
+       (SYMBOL_REF_BLOCK): Likewise.
+       (SYMBOL_REF_OFFSET): Likewise.
+       (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
+       SYMBOL_REF_IN_BLOCK_P.
+       (SYMBOL_FLAG_IN_BLOCK): Replace with...
+       (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
+       (SYMBOL_REF_IN_BLOCK_P): Replace with...
+       (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
+
+2006-03-03  Jakub Jelinek  <jakub@redhat.com>
+
+       * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
+
+2006-03-02  Roger Sayle  <roger@eyesopen.com>
+
+       * simplify-rtx.c (simplify_unary_operation): When simplifying
+       (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
+       that we perform the right shift in the appropriate mode, and
+       then extend or truncate the result to requested mode.
+
+2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>
+
+       * gengtype.c (main): Handle double_int type.
+       * tree.h (struct tree_int_cst): Make type of int_cst double_int.
+       * double-int.c: New file.
+       * double-int.h: New file.
+       * system.h: Include doubleint.h.
+       * Makefile.in (SYSTEM_H): Include double-int.h.
+       (double-int.o): Add.
+
+2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>
+
+       PR bootstrap/26478
+       * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
+       copying over it.
+
+2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
+
+       * tree-vrp.c (remove_range_assertions): Do not update statements
+       unnecessarily.
+
+2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
+
+       * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
+       cleanup.
+       * gcse.c (rest_of_handle_gcse): Ditto.
+       * except.c (gate_handle_eh): Ditto.
+       * cfgcleanup.c (rest_of_handle_jump2): Ditto.
+       * basic-block.h (CLEANUP_PRE_LOOP): Remove.
+
+2006-03-02  Eric Christopher  <echristo@apple.com>
+
+       * config/i386/i386.c (machopic_output_stub): Add indirection to
+       jump.
+
+2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
+
+       * loop.c: Removed.
+
+2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
+
+       Sun Niagara specific optimizations.
+       * config.gcc: Recognize niagara as target.
+       * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
+       (TARGET_CPU_niagara): Define.
+       (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
+       (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
+       (CPP_CPU_SPEC): Handle -mcpu=niagara.
+       (ASM_CPU_SPEC): Likewise.
+       (PROCESSOR_NIAGARA): New enum entry.
+       (REGISTER_MOVE_COST): Handle Niagara.
+       (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
+       * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
+       (sparc_override_options): Recognize "niagara", set appropriate
+       default MASK_* values for it, and align functions to 32-bytes
+       by default just like ULTRASPARC/ULTRASPARC3.
+       (sparc_initialize_trampoline): Handle niagara like ultrasparc.
+       (sparc64_initialize_trampoline): Likewise.
+       (sparc_use_sched_lookahead): Use zero for niagara.
+       (sparc_issue_rate): Use one for niagara.
+       * config/sparc/niagara.md: New file.
+       * config/sparc/sparc.md: Include it.
+       * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
+       ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
+       when default cpu is niagara.
+       (CPP_CPU_SPEC): Handle -mcpu=niagara.
+       (ASM_CPU_SPEC): Likewise.
+       * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
+       when default cpu is niagara.
+       (ASM_CPU_SPEC): Handle -mcpu=niagara.
+       * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
+       just like v9/ultrasparc/ultrasparc3.
+       * doc/invoke.texi: Add documentation for "niagara" and improve
+       existing documentation for ultrasparc variants.
+
+2006-03-02  Diego Novillo  <dnovillo@redhat.com>
+
+       * tree-ssa-operands.c (update_stmt_operands): Update documentation.
+
+2006-03-02  Richard Sandiford  <richard@codesourcery.com>
+
+       * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
+       (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
+       and say that only one is needed.
+       * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
+       * target.h (have_switchable_bss_sections): New hook.
+       * explow.c (use_anchored_address): Check that the symbol is in a block.
+       * varasm.c (tls_comm_section, comm_section, lcomm_section)
+       (bss_noswitch_section): New variables.
+       (get_unnamed_section): Add SECTION_UNNAMED to the flags.
+       (get_noswitch_section): New function.
+       (get_block_for_section): Allow SECT to be null.
+       (unlikely_text_section_p): Use SECTION_STYLE.
+       (bss_initializer_p): New function.
+       (get_variable_section): Move earlier in file.  Take a new argument,
+       prefer_noswitch_p.  Move bss checks from assemble_variable to here.
+       Return one of the new *_sections in such cases.
+       (get_block_for_decl): New function, extracting some logic from
+       use_blocks_for_decl_p.
+       (change_symbol_section): Remove in favor of...
+       (change_symbol_block): ...this new function.
+       (use_blocks_for_decl_p): Remove checks now performed by
+       get_block_for_decl.
+       (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
+       (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
+       (emit_local, emit_bss, emit_common): ...these new functions.
+       Return true if the alignment was honored.
+       (emit_tls_common): New function.
+       (asm_emit_uninitialised): Delete.
+       (assemble_variable_noswitch): New function, split out from...
+       (assemble_variable): ...here.  Don't make decisions about common
+       variables here.  Globalize all public decls that go into non-common
+       sections.  Check whether SYMBOL_REF_BLOCK is null.
+       (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
+       (output_constant_pool): Likewise.
+       (init_varasm_once): Initialize the new section variables.
+       (have_global_bss_p): New function.
+       (categorize_decl_for_section): Use bss_initializer_p.
+       (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
+       (place_block_symbol): Assert that the symbol must be in a block.
+       * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
+       (TARGET_INITIALIZER): Include it.
+       * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
+       * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
+       (SECTION_MACH_DEP): Bump by two.
+       (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
+       (unnamed_section): Mention SECTION_UNNAMED in comment.
+       (named_section): Likewise SECTION_NAMED.
+       (noswitch_section_callback): New type.
+       (noswitch_section): New structure.
+       (section): Add a noswitch_section alternative.
+       (SECTION_STYLE): New macro.
+       (tls_comm_section, comm_section, lcomm_section): Declare.
+       (bss_noswitch_section, have_global_bss_p): Declare.
+       * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
+       * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
+       Override.
+       * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
+       * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
+       Override.
+
+2006-03-02  Daniel Berlin <dberlin@dberlin.org>
+
+       * gcc/tree-vrp.c (execute_vrp): Return value.
+       * gcc/regrename.c (rest_of_handle_regrename): Ditto.
+       * gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
+       * gcc/tree-complex.c (tree_lower_complex): Ditto.
+       (tree_lower_complex_O0): Ditto.
+       * gcc/tracer.c (rest_of_handle_tracer): Ditto.
+       * gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
+       * gcc/postreload.c (rest_of_handle_postreload): Ditto.
+       * gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
+       (execute_tail_calls): Ditto.
+       * gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
+       * gcc/tree.h (init_function_for_compilation): Ditto.
+       * gcc/ipa-cp.c (ipcp_driver): Ditto.
+       * gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
+       * gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
+       * gcc/final.c (compute_alignments): Ditto.
+       (rest_of_handle_final): Ditto.
+       (rest_of_handle_shorten_branches): Ditto.
+       (rest_of_clean_state): Ditto.
+       * gcc/omp-low.c (execute_expand_omp): Ditto.
+       (execute_lower_omp): Ditto.
+       * gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
+       * gcc/ipa-reference.c (static_execute): Ditto.
+       * gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
+       * gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
+       (rest_of_handle_machine_reorg): Ditto.
+       * gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
+       * gcc/flow.c (recompute_reg_usage): Ditto.
+       (rest_of_handle_remove_death_notes): Ditto.
+       (rest_of_handle_life): Ditto.
+       (rest_of_handle_flow2): Ditto.
+       * gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
+       * gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
+       (do_ssa_store_ccp): Ditto.
+       (execute_fold_all_builtins): Ditto.
+       * gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
+       * gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
+       * gcc/ipa-pure-const.c (static_execute): Ditto.
+       * gcc/cse.c (rest_of_handle_cse): Ditto.
+       (rest_of_handle_cse2): Ditto.
+       * gcc/web.c (rest_of_handle_web): Ditto.
+       * gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
+       * gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
+       * gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
+       * gcc/tree-nrv.c (tree_nrv): Ditto.
+       (execute_return_slot_opt): Ditto.
+       * gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
+       (create_structure_vars): Ditto.
+       * gcc/loop-init.c (rtl_loop_init): Ditto.
+       (rtl_loop_done): Ditto.
+       (rtl_move_loop_invariants): Ditto.
+       (rtl_unswitch): Ditto.
+       (rtl_unroll_and_peel_loops): Ditto.
+       (rtl_doloop): Ditto.
+       * gcc/gimple-low.c (lower_function_body): Ditto.
+       (mark_used_blocks): Ditto.
+       * gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
+       * gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
+       (cgraph_early_inlining): Ditto.
+       * gcc/global.c (rest_of_handle_global_alloc): Ditto.
+       * gcc/jump.c (cleanup_barriers): Ditto.
+       (purge_line_number_notes): Ditto.
+       * gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
+       (rest_of_handle_if_after_reload): Ditto.
+       * gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
+       (tree_ssa_loop_im): Ditto.
+       (tree_ssa_loop_unswitch): Ditto.
+       (tree_vectorize): Ditto.
+       (tree_linear_transform): Ditto.
+       (tree_ssa_loop_ivcanon): Ditto.
+       (tree_ssa_empty_loop): Ditto.
+       (tree_ssa_loop_bounds): Ditto.
+       (tree_complete_unroll): Ditto.
+       (tree_ssa_loop_prefetch): Ditto.
+       (tree_ssa_loop_ivopts): Ditto.
+       (tree_ssa_loop_done): Ditto.
+       * gcc/predict.c (tree_estimate_probability): Ditto.
+       * gcc/recog.c (split_all_insns_noflow): Ditto.
+       (rest_of_handle_peephole2): Ditto.
+       (rest_of_handle_split_all_insns): Ditto.
+       * gcc/tree-eh.c (lower_eh_constructs): Ditto.
+       * gcc/regmove.c (rest_of_handle_regmove): Ditto.
+       (rest_of_handle_stack_adjustments): Ditto.
+       * gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
+       * gcc/function.c (instantiate_virtual_regs): Ditto.
+       (init_function_for_compilation): Ditto.
+       (rest_of_handle_check_leaf_regs): Ditto.
+       * gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
+       (rest_of_handle_gcse): Ditto.
+       * gcc/ipa-type-escape.c (type_escape_execute): Ditto.
+       * gcc/alias.c (rest_of_handle_cfg): Ditto.
+       * gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
+       * gcc/profile.c (rest_of_handle_branch_prob): Ditto.
+       * gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
+       * gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
+       * gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
+       * gcc/tree-dfa.c (find_referenced_vars): Ditto.
+       * gcc/except.c (set_nothrow_function_flags): Ditto.
+       (convert_to_eh_region_ranges): Ditto.
+       (rest_of_handle_eh): Ditto.
+       * gcc/emit-rtl.c (unshare_all_rtl): Ditto.
+       (remove_unnecessary_notes): Ditto.
+       * gcc/except.h (set_nothrow_function_flags): Ditto.
+       (convert_to_eh_region_ranges): Ditto.
+       * gcc/cfgexpand.c (tree_expand_cfg): Ditto.
+       * gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
+       * gcc/tree-ssa-pre.c (do_pre): Ditto.
+       (execute_fre): Ditto.
+       * gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
+       (rest_of_handle_jump2): Ditto.
+       * gcc/tree-sra.c (tree_sra): Ditto.
+       * gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
+       (execute_mudflap_function_decls): Ditto.
+       * gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
+       (do_store_copy_prop): Ditto.
+       * gcc/ipa-prop.h (ipcp_driver): Ditto.
+       * gcc/cfglayout.c (insn_locators_initialize): Ditto.
+       * gcc/tree-ssa-forwprop.c
+       (tree_ssa_forward_propagate_single_use_vars): Ditto.
+       * gcc/cfglayout.h (insn_locators_initialize): Ditto.
+       * gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
+       * gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
+       (execute_late_warn_uninitialized): Ditto.
+       * gcc/rtl.h (cleanup_barriers): Ditto.
+       (split_all_insns_noflow): Ditto.
+       (purge_line_number_notes): Ditto.
+       (unshare_all_rtl): Ditto.
+       (remove_unnecessary_notes): Ditto.
+       (recompute_reg_usage): Ditto.
+       (variable_tracking_main): Ditto.
+       * gcc/integrate.c (emit_initial_value_sets): Ditto.
+       * gcc/integrate.h (emit_initial_value_sets): Ditto.
+       * gcc/tree-optimize.c (execute_free_datastructures): Ditto
+       (execute_free_cfg_annotations): Ditto.
+       (execute_fixup_cfg): Ditto.
+       (execute_cleanup_cfg_pre_ipa): Ditto.
+       (execute_cleanup_cfg_post_optimizing): Ditto.
+       (execute_init_datastructures): Ditto.
+       * gcc/tree-object-size.c (compute_object_sizes): Ditto.
+       * gcc/combine.c (rest_of_handle_combine): Ditto.
+       * gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
+       * gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
+       (rest_of_handle_reorder_blocks): Ditto.
+       (rest_of_handle_partition_blocks): Ditto.
+       * gcc/var-tracking.c (variable_tracking_main): Ditto.
+       * gcc/tree-profile.c (tree_profiling): Ditto.
+       * gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
+       * gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
+       * gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
+       (rest_of_handle_sched2): Ditto.
+       * gcc/basic-block.h (free_bb_insn): Ditto.
+       * gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
+       * gcc/tree-cfg.c (execute_build_cfg): Ditto.
+       (remove_useless_stmts): Ditto.
+       (split_critical_edges): Ditto.
+       (execute_warn_function_return): Ditto.
+       (execute_warn_function_noreturn): Ditto.
+       * gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
+       * gcc/cfgrtl.c (free_bb_for_insn): Ditto.
+       * gcc/passes.c (execute_one_pass): Run additional
+       todos returned by execute function.
+       * gcc/tree-pass.h (struct tree_opt_pass): Make execute
+       return a value.
+
+2006-03-02  Richard Guenther  <rguenther@suse.de>
+
+       * tree-ssa-alias.c (find_used_portions): Consider taking
+       the address as making the variable not write-only.
+
+2006-03-02  Nick Clifton  <nickc@redhat.com>
+
+       * config.gcc (default_use_cxa_atexit): Extend the description of
+       this configure variable.  Set its default value to "yes" for
+       Linux, NetBSD and ELF targets on the assumption that they will
+       use C libraries with the __cxa_atexit function.
+
+2006-03-02  Ben Elliston  <bje@au.ibm.com>
+
+       * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
+       parameter as unused to suppress a build warning.
+
+2006-03-02  Ben Elliston  <bje@au.ibm.com>
+
+       * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
+       config/dfp-bit.c.
+
+2006-03-01  Roger Sayle  <roger@eyesopen.com>
+
+       PR other/26489
+       * gthr-posix.h (__gthrw2): Define to take three parameters, the
+       declared name, the weak reference name, and the typeof name.
+       (__gthrw): Avoid expanding the declared name suffix.
+       (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
+
+2006-03-01  Jakub Jelinek  <jakub@redhat.com>
+
+       * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
+       from DWARF 3.
+       (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
+       DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
+       DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
+       DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
+       DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
+       (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
+       (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
+       DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
+       (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
+       DW_DS_leading_separate, DW_DS_trailing_separate): New.
+       (DW_END_default, DW_END_big, DW_END_little): New.
+       (DW_END_lo_user, DW_END_hi_user): Define.
+       (DW_LNE_lo_user, DW_LNE_hi_user): Define.
+       (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
+       (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
+       DW_LANG_D): New.
+
+2006-03-01  Diego Novillo  <dnovillo@redhat.com>
+
+       * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
+       Update all users.
+       * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
+       Update all users.
+       (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
+       Update all users.
+       * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
+       Update all users.
+       * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
+       to 'symbol_mem_tag'.
+       Update all users.
+       * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
+       rename.
+
+2006-03-01  Roger Sayle  <roger@eyesopen.com>
+
+       * builtins.c (fold_builtin_copysign): Delete unreachable code.
+
+2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
+
+       PR target/25761
+       * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
+       MACHO_DYNAMIC_NO_PIC_P.
+       (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
+
+2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
+
+       PR target/26389
+       * config/darwin-protos.h (darwin_asm_output_anchor):
+       Declare.
+       * config/darwin-sections.def (cstring_section):
+       Add SECTION_MERGE to the flags.
+       (literal4_section): Likewise.
+       (literal8_section): Likewise.
+       (objc_selector_refs_section): Likewise.
+       (objc_cls_refs_section): Likewise.
+       * config/darwin.c (darwin_asm_output_anchor): New
+       function.
+       * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
+
+2006-03-01  Daniel Berlin  <dberlin@dberlin.org>
+
+       Fix PR tree-optimization/26443
+       * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
+       to todo and PROP_tmt_usage to properties_destroyed.
+       * tree-ssa-ccp.c (pass_ccp): Ditto.
+       (pass_store_ccp): Ditto.
+       * tree-ssa-dom.c (pass_dominator): Ditto.
+
+2006-03-01  Diego Novillo  <dnovillo@redhat.com>
+
+       * tree-ssa-operands.c: Cleanup whitespace.
+       (get_asm_expr_operands): Move before first invocation.
+       (get_indirect_ref_operands): Likewise.
+       (get_tmr_operands): Likewise.
+       (get_call_expr_operands): Likewise.
+       (append_def): Likewise.
+       (append_use): Likewise.
+       (append_v_may_def): Likewise.
+       (append_v_must_def): Likewise.
+       (add_call_clobber_ops): Likewise.
+       (add_call_read_ops): Likewise.
+       (add_stmt_operand): Likewise.
+       (add_virtual_operand): Likewise.
+       (build_ssa_operands): Likewise.
+
+2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
+
+       PR middle-end/26022
+       Revert:
+       PR middle-end/24437
+       * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
+       with a call expr to ...
+       * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
+
+2006-03-01  Diego Novillo  <dnovillo@redhat.com>
+
+       * tree-vrp.c (extract_range_from_assert): Remove special
+       handling for types with super-types.
+
+2006-03-01  Ben Elliston  <bje@au.ibm.com>
+
+       * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
+       and powerpc64-*-linux* configurations.
+       * config/t-dfprules: New file.
+
+       * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
+       Compile dfp-bit.c from the source directory using -DWIDTH and
+       $DFP_CFLAGS to control the compilation of that file, rather than
+       generating width-specific versions in the build directory.
+       * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
+       (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
+
+2006-02-28  Zack Weinberg  <zackw@panix.com>
+
+       * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
+       continues to work.
+
+2006-02-28  Eric Christopher  <echristo@apple.com>
+
+       * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
+       Set up IN_LIBGCC definition of TARGET_64BIT.
+       * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
+
+2006-02-28  Roger Sayle  <roger@eyesopen.com>
+
+       PR middle-end/14752
+       * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
+       BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
+       cases via the construction of "expr != 0".
+
+2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
+
+       * alias.c (alias_invariant, alias_invariant_size): Remove.
+       (record_base_value): Remove.
+       (memrefs_conflict_p): Don't look at alias_invariant.
+       (end_alias_analysis): Don't free it.
+       * alias.h (record_base_value): Remove prototype.
+
+2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
+           Adam Nemet  <anemet@caviumnetworks.com>
+
+       * rtl.h (truncated_to_mode): Declare it.
+       (struct rtl_hooks): Add reg_truncated_to_mode hook.
+       * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
+       (RTL_HOOKS_INITIALIZER): Include it.
+       * rtlhooks.c (reg_truncated_to_mode_general): New function.
+       * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
+       reg_truncated_to_mode.
+       * rtlanal.c (truncated_to_mode): Define it.
+       * simplify-rtx.c (simplify_unary_operation_1): Use it.
+
+2006-02-28  Jeff Law  <law@redhat.com>
+
+       * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
+       conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
+       the range allowed by TYPE_PRECISION.
+
+       * tree.h (strct phi_arg_d): Remove unused NONZERO field.
+
+2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>
+
+       PR tree-optimization/26419
+       * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
+       values of n.
+
+2006-02-27  Zack Weinberg  <zackw@panix.com>
+
+       * doc/md.texi: Fix typo in previous change.
+
+2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>
+
+       * df.c: Remove.
+
+2006-02-27  Zack Weinberg  <zackw@panix.com>
+
+       * rtl.def (define_constraint, define_register_constraint)
+       (define_memory_constraint, define_address_constraint): New MD forms.
+       * gensupport.c (process_rtx): Put define_constraint etc on the
+       predicate queue.
+       * genpreds.c (process_define_predicate): Adjust comment.  Validate
+       the name, and call validate_exp to validate the expression.
+       (mark_mode_tests, write_extract_subexp): Can assume correct input.
+       (write_predicate_expr): Likewise.  NAME argument no longer necessary;
+       all callers changed.
+       (validate_exp, needs_variable, struct constraint_data)
+       (constraints_by_letter_table, first_constraint, last_constraint_ptr)
+       (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
+       (const_dbl_constraints, constraint_max_namelen)
+       (have_register_constraints, have_memory_constraints)
+       (have_address_constraints, have_address_constraints)
+       (have_extra_constraints, have_const_int_constraints)
+       (have_const_dbl_constraints, mangle, add_constraint)
+       (process_define_constraint, process_define_register_constraint)
+       (write_enum_constraint_num, write_lookup_constraint)
+       (write_insn_constraint_len, write_regclass_for_constraint)
+       (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
+       (write_insn_extra_memory_constraint)
+       (write_insn_extra_address_constraint)
+       (write_satisfies_constraint_fns): New.
+       (write_tm_preds_h): If we have new-style constraint definitions,
+       prototype the functions generated from them, and define the
+       old constraint interface (still used by generic code) in terms of
+       those functions.
+       (write_insn_preds_c): If we have new-style constraint definitions,
+       generate all relevant functions from those definitions.
+       (main): Handle define_constraint etc.
+       * genoutput.c (struct constraint_data, indep_constraints)
+       (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
+       (mdep_constraint_len): New data structures and functions, defined
+       #ifdef USE_MD_CONSTRAINTS.
+       (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
+       (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
+       use new logic to validate operand constraints against constraint
+       definitions.
+       (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
+       defined.
+       * defaults.h: If none of the old-style constraint macros are
+       defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
+       old-style macros; and poison REG_CLASS_FROM_LETTER,
+       CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
+       EXTRA_CONSTRAINT.
+       * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
+       * doc/md.texi: Document new constraint-definition mechanism and the
+       C interface it provides.  Remove references to old mechanism
+       elsewhere in the document.
+       (Machine Constraints): Use pathnames relative to gcc directory,
+       i.e. config/ARCH/FILE.  Change i386 section to refer to
+       config/i386/predicates.md; update that section to match docstrings.
+       * doc/tm.texi: Move all documentation of the old constraint-
+       definition macros to their own section, clearly mark as obsolete.
+
+       * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
+       (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
+       definitions.
+       * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
+       (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
+       * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
+       constraint strings.
+       (splits and peepholes): Use satisfies_constraint_*.
+       * config/i386/i386.c (memory_address_length)
+       (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
+
+2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
+
+       * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
+       scalar operation to be put back into the loop.
+
+2006-02-27  Jakub Jelinek  <jakub@redhat.com>
+
+       PR other/26208
+       * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
+       (extract_cie_info): Handle S flag in augmentation string.
+       (execute_cfa_program): If context->signal_frame, execute also
+       fs->pc == context->ra instructions.
+       (uw_frame_state_for): If context->signal_frame, don't subtract one
+       from context->ra to find FDE.
+       (uw_update_context_1): Set context->signal_frame to
+       fs->signal_frame.
+       (_Unwind_GetIPInfo): New function.
+       * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
+       * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
+       of _Unwind_GetIP.
+       * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
+       * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
+       * unwind-compat.c (_Unwind_GetIPInfo): New function.
+       * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
+       * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
+       * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
+       * config/i386/linux-unwind.h (x86_fallback_frame_state,
+       x86_64_fallback_frame_state): Set fs->signal_frame.
+       * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
+       (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
+       (frob_update_context): Likewise.  Workaround missing S flag in
+       Linux 2.6.12 - 2.6.16 kernel vDSOs.
+       * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
+       Remove the psw_addr + 1 hack.
+
+2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
+
+       * tree-ssa-structalias.c (get_constraint_for): Move code to deal
+       with aggregates here.
+       (find_func_aliases): Remove code for &<aggregate> from here.
+
+2006-02-26  Roger Sayle  <roger@eyesopen.com>
+
+       * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
+       (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
+       Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
+       as (X & C) ne/eq 0.
+
+2006-02-26  Roger Sayle  <roger@eyesopen.com>
+
+       PR middle-end/19983
+       * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
+
+2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>
+
+       * opts.c (decode_options): Do not handle flag_strength_reduce.
+       (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
+       and OPT_fstrength_reduce.
+       * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
+       flag_prefetch_loop_arrays for being nonzero.
+       * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
+       no-ops.
+       (fprefetch-loop-arrays-rtl): Removed.
+       (flag_prefetch_loop_arrays): Do not specify the value.
+
+       * doc/passes.texi: Update documentation of loop optimizer
+       passes.
+       * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
+       -frerun-loop-opt): Remove.
+
+2006-02-26  Richard Guenther  <rguenther@suse.de>
+
+       PR tree-optimization/26421
+       * tree-ssa-alias.c (find_used_portions): Don't treat parameters
+       in function calls that are ADDR_EXPRs as using the whole structure.
+
+2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>
+
+       * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
+       * tree-pass.h (pass_loop_optimize): Remove.
+       * passes.c (pass_loop_optimize): Never run it.
+       * toplev.c (backend_init): Don't call init_loop.
+       * opts.c (flag_loop_optimize_set): Remove.
+       (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
+       (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
+       the old RTL loop optimizer when profiling enabled.
+       * predict.c (tree_estimate_probability): Always strip builtin_expect.
+       * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
+       pre-headers for the sake of the old RTL loop optimizer.
+       * Makefile.in: Remove all references to loop.o.
+
+       * doc/invoke.texi: Remove all references to -floop-optimize
+       and -frerun-loop-opt.
+
+2006-02-26  Zack Weinberg  <zackw@panix.com>
+
+       * doc/md.texi (Machine Constraints): Refer to all files with paths
+       relative to gcc directory (i.e. config/CPU/file).  Add missing
+       @table @code ... @end table to M32C subsection.
+
+2006-02-26  Roger Sayle  <roger@eyesopen.com>
+
+       * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
+       (X & 1) == 0.
+       <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
+
+2006-02-26  Roger Sayle  <roger@eyesopen.com>
+           James A. Morrison  <phython@gcc.gnu.org>
+
+       PR middle-end/21137
+       * fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
+       when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
+       new constant C2<<C1, or as (X<0) or (X,false) depending upon the
+       signedness of the shift operation.
+
 2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>
 
        PR tree-optimization/26359
 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
 
        * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
-       * doc/invoke.texi (C++ Dialect Options): Document 
+       * doc/invoke.texi (C++ Dialect Options): Document
        -fno-use-cxa-get-exception-ptr.
        * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
        * configure: Regenerate.
        and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
        LE_EXPR and GE_EXPR), calling fold_comparison to perform the
        transformations common to both.
-       (fold_div_compare): Fix latent bugs in the previously unreachable 
+       (fold_div_compare): Fix latent bugs in the previously unreachable
        LT_EXPR and GE_EXPR cases.
 
 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
        * emit-rtl.c (immed_double_const): Cleanup.
 
 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
-       
+
        Fix PR tree-optimization/26376
        * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
        remove assert.
        of loops surrounding the references from the callers, and initialize
        DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
        base_object_differ_p analyzers.
-       (analyze_ziv_subscript, analyze_siv_subscript_cst_affine, 
+       (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
        compute_overlap_steps_for_affine_1_2,
        analyze_subscript_affine_affine): Count the classified dependences.
        Print a message when a test failed.
-       (can_use_analyze_subscript_affine_affine): New. 
+       (can_use_analyze_subscript_affine_affine): New.
        (analyze_siv_subscript): Compute the data dependences on symbolic
        scevs that verify can_use_analyze_subscript_affine_affine.
        (chrec_steps_divide_constant_p): Returns true, false, or unknown.
        (analyze_overlapping_iterations): Let symbolic affine scevs to be
        analyzed.
        (subscript_dependence_tester): Moved...
-       (build_classic_dist_vector, build_classic_dir_vector): Don't use 
+       (build_classic_dist_vector, build_classic_dir_vector): Don't use
        lambda_vector_clear on newly allocated vectors.  Get nb_loops from
        DDR_SIZE_VECT instead of getting it in parameter.
-       (subscript_dependence_tester): ... here.  Take as a parameter 
+       (subscript_dependence_tester): ... here.  Take as a parameter
        loop_nest_depth.  Call build_classic_dist_vector and
        build_classic_dir_vector.
-       (compute_affine_dependence): Update subscript_dependence_tester 
-       parameters.  Update datadep_stats counters.  Call 
+       (compute_affine_dependence): Update subscript_dependence_tester
+       parameters.  Update datadep_stats counters.  Call
        compute_subscript_distance.
-       (compute_self_dependence): Save the dist and dir vectors.  Call 
+       (compute_self_dependence): Save the dist and dir vectors.  Call
        compute_subscript_distance.
        (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
        (compute_all_dependences): Reorder parameters as they were before
        conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
-       compute_subscript_distance.  Update the use of 
+       compute_subscript_distance.  Update the use of
        compute_affine_dependence and initialize_data_dependence_relation.
        (find_data_references_in_loop): Handle COMPONENT_REF.
        (compute_data_dependences_for_loop): Initialize dependence_stats.
        Don't call build_classic_dist_vector and build_classic_dir_vector.
-       Update the parameters of initialize_data_dependence_relation and 
+       Update the parameters of initialize_data_dependence_relation and
        compute_all_dependences.  Print the statistics from datadep_stats.
        (analyze_all_data_dependences): Static.  Not used until the pass for
        checking the data dependences is contributed.
        * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
        DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
-       (initialize_data_dependence_relation, compute_affine_dependence, 
+       (initialize_data_dependence_relation, compute_affine_dependence,
        analyze_all_data_dependences, compute_subscript_distance): Removed.
        (print_direction_vector): New.
        * lambda.h (gcd): ... here.
        * tree-pass.h (PROP_tmt_usage): New property.
        (TODO_update_tmt_usage): New todo.
        * tree-ssa-alias.c (updating_used_alone): New variable.
-       (recalculate_used_alone): New function.   
+       (recalculate_used_alone): New function.
        (compute_may_aliases): Set updating_used_alone, call
-       recalculate_used_alone. 
+       recalculate_used_alone.
        * tree-sra.c (pass_sra): Note that this pass destroys
        PROP_tmt_usage, and add TODO_update_tmt_usage.
        * tree-ssa-forwprop.c (pass_forwprop): Ditto.
        * tree-ssa-operands.c (add_virtual_operand): Only append bare def
        for clobber if used alone, and add assert to verify used_alone
        status.
-       
+
 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
 
        * config/s390/s390.c (legitimize_pic_address): Assertions checking
        that were configured.  For all the other variables except
        lang_specs_files, include all the languages in the tree.
        * configure: Regenerate.
-       
+
        * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
        if there is one.  Run the commands to run fixincludes in the same
        subshell.
        PR middle-end/25600
        * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
        C is one less than the width of X (and related transformations).
-       * simplify_rtx.c (simplify_unary_operation_1): Transform 
+       * simplify-rtx.c (simplify_unary_operation_1): Transform
        (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
        depending on STORE_FLAG_VALUE, were C is one less then the
        width of X.
 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
 
        Fix PR tree-optimization/26341
-       * tree-ssa-operands.c (add_virtual_operand): Remove assert 
+       * tree-ssa-operands.c (add_virtual_operand): Remove assert
        about NAME_MEMORY_TAG's.
 
 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
        general and floating-point registers to the 32-bit pattern.
        * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
        secondary reload to load a QI or HI mode constant into a floating
-       point register. 
+       point register.
        * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
        * pa64-regs.h (VALID_FP_MODE_P): Likewise.
 
        PR rtl-optimization/25603
        * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
        (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
-       * reload1.c (choose_reload_regs): Added call of regno_clobbered_p 
+       * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
        with new meaning of SETS.
 
 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
        (add_virtual_operand): Here.  Add offset, size, and for_clobber
        arguments.  Prune alias sets.
        (add_call_clobber_ops): Call add_virtual_operand.
-       
+
 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
 
        PR middle-end/26300
        * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
        * tree-ssa-structalias.c (create_variable_info_for): Use
        MAX_FIELDS_FOR_FIELD_SENSITIVE.
-       
+
 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
 
        * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
 
        * doc/invoke.texi (-Write-strings): Document that it is enabled by
-       default. 
+       default.
        * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
        Clarify documentation.
        * c-common.h (warn_write_strings): Remove.
 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
 
        PR middle-end/26134
-       * fold-const.c (fold_indirect_ref_1): Fold 
+       * fold-const.c (fold_indirect_ref_1): Fold
        "*(foo *)&complexfoo" to "__real__ complexfoo"
        and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
 
 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
 
-       * tree-flow-inline.h (var_can_have_subvars): 
+       * tree-flow-inline.h (var_can_have_subvars):
        Volatile variables should not have subvariables.
 
 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
        Do return slot optimization if we have an INIT_EXPR.
 
        PR tree-opt/24365
-       * tree-inline.c (declare_return_variable): Also clear 
+       * tree-inline.c (declare_return_variable): Also clear
        DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
 
        PR c++/16405
 
 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
 
-        * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
+       * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
        use of float in probability computations.  Use edge probabilities
        in place of statically computed probabilities.
        (min_spec_prob): New static variable.
        (insert_aux): Move AGGREGATE_TYPE_P check here.
        (compute_avail): Set bb local stmt uids.
        (pass_pre): Use TODO_update_ssa_only_virtuals.
-       
+
 2006-02-06  Ben Elliston  <bje@au.ibm.com>
 
        * configure.ac: Unconditionally disable decimal float by default.
        * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
        "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
        * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
-       * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr 
+       * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
        and dxr fields.
        (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
        (s390_rtx_costs): Use the new fields to calculate rtx costs.
        builtin define.
        (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
        (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
-       (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS, 
+       (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
        CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
-       * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf, 
+       * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
        fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
        (FPR mode macro): Add TFmode.
        (DSF mode macro): New.
        (<de>, <dee> mode attributes): Removed.
        (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
-       ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs", 
-       "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee", 
-       "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3", 
-       "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm", 
-       "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly", 
+       ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
+       "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
+       "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
+       "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
+       "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
        "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
-       "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc", 
-       "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm", 
+       "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
+       "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
        "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
-       "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly", 
+       "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
        "*negabs<mode>2", "sqrt<mode>2"):
        Changed <de> to <xde>. R constraint replaced by <Rf>.
-       ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by 
+       ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
        <Rf>.
        ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
-        ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
-       ("*movtf_64", "*movtf_31"): New insn definitions followed by 5 
+       ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
+       ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
        splitters.
-       ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2", 
+       ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
        "extenddftf2", "extendsftf2"): New expanders.
-       ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee", 
+       ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
        "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
        "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
        * config/s390/s390.opt (mlong-double-128, mlong-double-64):
        New options.
        * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
-       * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2, 
+       * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
        __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
        __floatditf): Add a GCC_4.1.0 symbol version tag.
        * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document