* tree.h (PHI_ARG_NONZERO): Remove.

[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog

2006-02-23  Jeff Law  <law@redhat.com>

        * tree.h (PHI_ARG_NONZERO): Remove.
        * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
        (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
        node to the new node.

        PR tree-optimization/26425
        * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
        min/max, then assume its varying.

2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/26316
        * rtlanal.c (enum may_trap_p_flags): New.
        (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
        MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
        (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
        (may_trap_after_code_motion_p): New function.
        * loop-invariant.c (find_identical_invariants): Fix dump formating.
        (find_invariant_insn): Use may_trap_after_code_motion_p.
        * rtl.h (may_trap_after_code_motion_p): Declare.

2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>

        * 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.

2006-02-23  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/26412
        * gimplify.c (omp_add_variable): Guard variable size decl test with
        DECL_SIZE (decl) check.

2006-02-23  Richard Guenther  <rguenther@suse.de>

        PR middle-end/26439
        * tree-ssa-structalias.c (find_func_aliases): Handle complex types
        like aggregate types.

2006-02-23  Jakub Jelinek  <jakub@redhat.com>

        * configure.ac: Add --with{,out}-long-double-128 configure option.
        (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
        * configure: Rebuilt.
        * config.in: Rebuilt.
        * doc/install.texi (Options specification): Document
        --with-long-double-128.

        * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
        (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
        * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
        (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.

2006-02-23  Aldy Hernandez  <aldyh@redhat.com>

        * config/s390/s390.c (override_options): Handle
        TARGET_DEFAULT_LONG_DOUBLE_128.

        * config/alpha/alpha.c (override_options): Handle
        TARGET_DEFAULT_LONG_DOUBLE_128.

        * config/sparc/sparc.c (sparc_override_options): Handle
        TARGET_DEFAULT_LONG_DOUBLE_128.

2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>

        * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
        (real-install-headers-tar, real-install-headers-cpio)
        (real-install-headers-cp): New targets.

2006-02-22  Richard Sandiford  <richard@codesourcery.com>

        * tree.h (variable_section): Delete.
        * varasm.c (variable_section): Delete.

2006-02-22  Paolo Bonzini  <bonzini@gnu.org>

        * install.texi: Add notes on install.texi2html.
        (Building in parallel): Do not use footnotes.

2006-02-21  Aldy Hernandez  <aldyh@redhat.com>

        PR libgomp/26234
        * doc/install.texi (Configuration): Document --disable-libgomp.

2006-02-21  Geoffrey Keating  <geoffk@apple.com>

        * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.

2006-02-21  Alexandre Oliva  <aoliva@redhat.com>

        * config/i386/sse.md (vec_extractv2df_1_sse): New.
        (vec_extractv2df_0_sse): New.

2006-02-21  Alexandre Oliva  <aoliva@redhat.com>

        * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
        * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
        * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
        * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
        to the result of the expression.
        (def_cfa_1): Adjust.
        (frame_pointer_cfa_offset): Rename to...
        (frame_pointer_fb_offset): ... this.  Adjust all uses.
        (convert_cfa_to_loc_list): Rename to...
        (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
        Pass it on to build_cfa_loc.
        (compute_frame_pointer_to_cfa_displacement): Rename to...
        (compute_frame_pointer_to_fb_displacement): ... this.  New
        offset parameter.  Use it in computation.
        (gen_subprogram_die): Compute cfa_fb_offset with the new
        macro, and use it to compute the fb loc list and the
        displacement.

2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
        replaced with register_operand.
        * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
        non-DREG is expensive.
        * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
        * config/bfin/bfin.md (movbi): Fix constraints and template for moves
        involving memory.

2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>

        * doc/install.texi2html: Use set -e.

2006-02-21  Richard Sandiford  <richard@codesourcery.com>

        * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
        (ASM_OUTPUT_SHARED_LOCAL): Delete.
        * doc/invoke.texi (-fshared-data): Delete.
        * common.opt (fshared-data): Delete.
        * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
        (assemble_static_space): Remove #if 0 code.
        * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
        (ASM_OUTPUT_SHARED_LOCAL): Poison.
        * config/cris/cris.h: Remove FIXME.

2006-02-21  Paolo Bonzini  <bonzini@gnu.org>

        * doc/sourcebuild.texi (Front End Directory): No more double-colon
        hooks.

2006-02-21  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/26379
        * combine.c (simplify_shift_const_1): Disable nested shifts
        optimization for vector shifts.

2006-02-20  Roger Sayle  <roger@eyesopen.com>

        PR tree-optimization/26361
        * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
        of unsigned integer types.

2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>

        * tree-chrec.c (eq_evolutions_p): New.
        * tree-chrec.h (eq_evolutions_p): Declared.
        * tree-data-ref.c: Fix formatting.
        (datadep_stats, dependence_stats): New.
        (gcd): Moved...
        (print_direction_vector): New.
        (dump_data_dependence_relation): Use print_direction_vector.
        (object_analysis, create_data_ref): Handle COMPONENT_REF.
        (compute_subscript_distance): Static.
        (initialize_data_dependence_relation): Static.  Get the number
        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, 
        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. 
        (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_miv_subscript): Update use of chrec_steps_divide_constant_p.
        Handle symbolic scevs.
        (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 
        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 
        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_subscript_distance.
        (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_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 
        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, 
        analyze_all_data_dependences, compute_subscript_distance): Removed.
        (print_direction_vector): New.
        * lambda.h (gcd): ... here.
        (lambda_vector_gcd): Moved here from gcd_vector.
        * lambda-code.c (gcd, gcd_vector): Removed.
        (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
        * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.

2006-02-20  Diego Novillo  <dnovillo@redhat.com>

        * ipa-type-escape.c: Tidy some comments and white space.
        * tree-ssa-operands.c: Likewise.

2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/25879
        * tree-pretty-print.c (debug_tree_chain): Walk the chains.
        (dump_decl_name): Do not walk the decl tree chains.
        * tree-pass.h (TDF_CHAIN): Remove.

2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>

        * Makefile.in (C): Remove
        (PROTO): Remove
        (.PHONY): Remove C and PROTO

2006-02-20  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/26236
        * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
        deprecated CHAR_TYPE tree code.

2006-02-20  Paolo Bonzini  <bonzini@gnu.org>

        * configure.ac (target_list): Add install-info, dvi, html.
        * configure: Regenerate.

        * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
        java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
        treelang/Make-lang.in: Do not use double-colon rules.

2006-02-20  Daniel Berlin  <dberlin@dberlin.org>

        * tree.h (struct tree_memory_tag): Add is_used_alone member.
        (TMT_USED_ALONE): New macro.
        * 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.   
        (compute_may_aliases): Set updating_used_alone, call
        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-flow.h (updating_used_alone): Prototype.
        (recalculate_used_alone): Ditto.
        * passes.c (execute_todo): Add code to set updating_used_alone,
        and call recalculate.
        * 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
        for non tls symbols added.
        (legitimize_address): Do nothing for PLUS expressions if one of the
        addends is a tls symbol reference.

2006-02-20  Paolo Bonzini  <bonzini@gnu.org>

        PR bootstrap/25476

        * Makefile.in (LDFLAGS): Define from autoconf substitution.

        * Makefile.in (BOOTSTRAPPING): New.
        (quickstrap): New definition if BOOTSTRAPPING=yes.

        * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
        * configure.ac: Substitute all_selected_languages with the languages
        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.

        * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
        * doc/install.texi: Document exact conventions for searching target tools.
        Document --with-build-time-tools.  Document toplevel bootstrap.  Document
        something more about building an Ada cross-compiler.  Don't list GNU Make
        requirements which affect all platforms.

2006-02-19  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/19543
        * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
        only equivalent if the have both the same mode and precision.

2006-02-20  Ben Elliston  <bje@au.ibm.com>

        * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.

2006-02-19  Roger Sayle  <roger@eyesopen.com>
            Steven Bosscher  <stevenb.gcc@gmail.com>

        * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
        constant pool references to identify stack mode constants.
        * rtlanal.c (constant_pool_constant_p): New predicate to check
        whether operand is a floating point constant in the pool.
        * rtl.h (constant_pool_constant_p): Prototype here.
        * loop.c (scan_loop): Avoid hoisting constants from the constant
        pool on STACK_REGS targets.
        (load_mems): Likewise.
        * loop-invariant.c (get_inv_cost): Make hoisting constant pool
        loads into x87 registers expensive in terms of register pressure.

2006-02-19  Roger Sayle  <roger@eyesopen.com>

        * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
        __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.

2006-02-19  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
        * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.

2006-02-19  Daniel Berlin  <dberlin@dberlin.org>

        * doc/invoke.texi: Document -fipa-pta.
        * common.opt: Add ipa-pta option.
        * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
        (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
        (do_ds_constraint): Ditto.
        (get_constraint_for): Only add to referenced_vars if
        referenced_vars exists.
        (insert_into_field_list): Rewrite to do this unsorted.
        (insert_into_field_list_sorted): Rename old insert_into_field_list
        to this.
        (create_function_info_for): Use insert_into_field_list_sorted.
        (create_variable_info_for): Rewrite so it uses unsorted version,
        since the field list is sorted.
        (intra_create_variable_infos): Only add to referenced_vars if
        referenced_vars exists.
        (ipa_pta_execute): Init heapvars, and delete when done.
        * passes.c (init_optimization_passes): Add call to pass_ipa_pta.

2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * doc/install.texi: Add missing `@samp'.

2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>

        * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
        Use the arguments.

2006-02-18  Mark Wielaard  <mark@klomp.org>

        * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
        who added new 4.1 features, bug fixes and integration support.

2006-02-18  David Edelsohn  <edelsohn@gnu.org>

        PR target/26350
        * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
        MEM for ABI_V4 pic.

2006-02-18  Richard Sandiford  <richard@codesourcery.com>

        * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
        * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
        (copy_insn_1): Likewise.  Don't copy each field individually.
        Reindent.
        * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
        of RTX_SIZE.
        * reload1.c (eliminate_regs): Use shallow_copy_rtx.
        * rtl.c (rtx_size): Rename variable to...
        (rtx_code_size): ...this.
        (rtx_size): New function.
        (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
        (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
        Reindent.
        (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
        * rtl.h (rtx_code_size): New variable.
        (rtx_size): Change from a variable to a function.
        (RTX_SIZE): Rename to...
        (RTX_CODE_SIZE): ...this.

        PR target/9703
        PR tree-optimization/17106
        * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
        (Anchored Addresses): New section.
        * doc/invoke.texi (-fsection-anchors): Document.
        * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
        (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
        (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
        * hooks.c (hook_bool_mode_rtx_false): New function.
        * hooks.h (hook_bool_mode_rtx_false): Declare.
        * gengtype.c (create_optional_field): New function.
        (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
        SYMBOL_REF_IN_BLOCK_P is true.
        * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
        (min_anchor_offset, max_anchor_offset): Likewise.
        (use_anchors_for_symbol_p): New hook.
        * toplev.c (compile_file): Call output_object_blocks.
        (target_supports_section_anchors_p): New function.
        (process_options): Check that -fsection-anchors is only used on
        targets that support it and when -funit-at-a-time is in effect.
        * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
        if the decl doesn't have one.
        * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
        * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
        of force_const_mem through use_anchored_address.
        (expand_expr_constant): New function.
        (expand_expr_addr_expr_1): Call it.  Use the same modifier when
        calling expand_expr for INDIRECT_REF.
        (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
        for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
        * expr.h (use_anchored_address): Declare.
        * loop-unroll.c: Don't declare rtx vectors here.
        * explow.c: Include output.h.
        (validize_mem): Call use_anchored_address.
        (use_anchored_address): New function.
        * common.opt (-fsection-anchors): New switch.
        * varasm.c (object_block_htab, anchor_labelno): New variables.
        (hash_section, object_block_entry_eq, object_block_entry_hash)
        (use_object_blocks_p, get_block_for_section, create_block_symbol)
        (use_blocks_for_decl_p, change_symbol_section): New functions.
        (get_variable_section): New function, split out from assemble_variable.
        (make_decl_rtl): Create a block symbol if use_object_blocks_p and
        use_blocks_for_decl_p say so.  Use change_symbol_section if the
        symbol has already been created.
        (assemble_variable_contents): New function, split out from...
        (assemble_variable): ...here.  Don't output any code for
        block symbols; just pass them to place_block_symbol.
        Use get_variable_section and assemble_variable_contents.
        (get_constant_alignment, get_constant_section, get_constant_size): New
        functions, split from output_constant_def_contents.
        (build_constant_desc): Create a block symbol if use_object_blocks_p
        says so.  Or into SYMBOL_REF_FLAGS.
        (assemble_constant_contents): New function, split from...
        (output_constant_def_contents): ...here.  Don't output any code
        for block symbols; just pass them to place_section_symbol.
        Use get_constant_section and get_constant_alignment.
        (force_const_mem): Create a block symbol if use_object_blocks_p and
        use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
        (output_constant_pool_1): Add an explicit alignment argument.
        Don't switch sections here.
        (output_constant_pool): Adjust call to output_constant_pool_1.
        Switch sections here instead.  Don't output anything for block symbols;
        just pass them to place_block_symbol.
        (init_varasm_once): Initialize object_block_htab.
        (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
        (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
        (place_block_symbol, get_section_anchor, output_object_block)
        (output_object_block_htab, output_object_blocks): New functions.
        * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
        (TARGET_ASM_OUT): Include it.
        (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
        (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
        (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
        (TARGET_INITIALIZER): Include them.
        * rtl.c (rtl_check_failed_block_symbol): New function.
        * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
        (block_symbol, object_block): New structures.
        (rtx_def): Add a block_symbol field to the union.
        (BLOCK_SYMBOL_CHECK): New macro.
        (rtl_check_failed_block_symbol): Declare.
        (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
        (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
        (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
        (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
        * output.h (output_section_symbols): Declare.
        (object_block): Name structure.
        (place_section_symbol, get_section_anchor, default_asm_output_anchor)
        (default_use_anchors_for_symbol_p): Declare.
        * Makefile.in (RTL_BASE_H): Add vec.h.
        (explow.o): Depend on output.h.
        * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
        (TARGET_MAX_ANCHOR_OFFSET): Likewise.
        (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
        (rs6000_use_blocks_for_constant_p): New function.

2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.

2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/25680
        * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
        IMAGPART_EXPR.

2006-02-18  Diego Novillo  <dnovillo@redhat.com>

        * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
        is_aliased.
        Update all users.

2006-02-18  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/26334
        * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
        instead of DECL_REGISTER.

2006-02-18  Olivier Hainque  <hainque@adacore.com>

        PR ada/13408
        * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.

2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>

        PR target/24837
        * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
        * opth-gen.awk: Handle Var and InverseMask together.
        * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
        * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
        (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
        (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
        used together.
        (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
        LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
        * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
        UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
        LINUX_DYNAMIC_LINKER): Define.
        (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
        * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
        TARGET_GLIBC.
        * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
        (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
        * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        (TARGET_C99_FUNCTIONS): Don't define.
        * config/i386/linux.h (DYNAMIC_LINKER): Rename to
        GLIBC_DYNAMIC_LINKER.
        (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
        * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
        GLIBC_DYNAMIC_LINKER64): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
        LINUX_DYNAMIC_LINKER64.
        * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
        GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
        UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
        and LINUX_DYNAMIC_LINKER32.
        * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
        TARGET_GLIBC.
        * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
        (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
        UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
        CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
        LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
        (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
        (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
        * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
        UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
        LINUX_DYNAMIC_LINKER): Define.
        (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
        * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
        GLIBC_DYNAMIC_LINKER64): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
        LINUX_DYNAMIC_LINKER64.
        * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
        (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
        UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
        LINUX_DYNAMIC_LINKER): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
        * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
        GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
        UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
        LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
        (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
        (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
        (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
        * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        * doc/invoke.texi (-muclibc): Remove caveat about supported
        targets.

2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>

        * doc/cpp.texi (__TIMESTAMP__): Document.

2006-02-17  Roger Sayle  <roger@eyesopen.com>

        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 
        (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 
        about NAME_MEMORY_TAG's.

2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/26255
        * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
        with hardware float support, and software float support.  Add fcpy
        alternative to hardware patterns.  Add alternatives to copy between
        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. 
        * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
        * pa64-regs.h (VALID_FP_MODE_P): Likewise.

2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/26272
        * config/rs6000/darwin.md (load_macho_picbase_si): Add
        pc to the pattern.
        (load_macho_picbase_di): Likewise.

2006-02-16  Jeff Law  <law@redhat.com>

        * tree-vrp.c (set_value_range_to_nonnegative): New function.
        (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
        (ssa_name_nonzero_p): Likewise.
        (get_value_range): Return NULL if VRP is not running.
        (extract_range_from_expr): Fallback to tree_expr_XXX_p if
        VRP routines do not discover a range.
        (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
        * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
        * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
        (tree_expr_nonnegative_p): Similarly.
        * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
        (restore_nonzero_vars_to_original_value): Remove.
        (unsafe_associative_fp_binop): Remove.
        (tree_ssa_dominator_optimize): Remove initialization and
        finalization of nonzero_vars and nonzero_vars_stack.
        (dom_opt_initialize_block): No longer push marker on
        nonzero_vars_stack.
        (dom_opt_finalize_block): No longer call
        restore_nonzero_vars_to_original_value.
        (record_equivalences_from_phis): No longer look for
        nonzero PHI arguments.
        (cprop_into_successor_phis): No longer propagate nonzero
        property into PHI arguments.  Lose unused argument.  Caller
        updated.
        (record_equivalences_from_stmt): No longer record nonzero
        values for SSA_NAMEs.
        (lookup_avail_expr): No longer use nonzero_vars.

        * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
        for sizetype when sizetype is unsigned.

2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>

        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 
        with new meaning of SETS.

2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>

        PR target/20353
        PR target/24578
        PR target/24837
        * config/linux.opt: New file.
        * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
        LINUX_DYNAMIC_LINKER): Define.
        (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
        * config.gcc (*-*-linux*): Define extra_options.
        (*-*-*uclibc*): Define UCLIBC_DEFAULT.
        (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
        * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
        GLIBC_DYNAMIC_LINKER.
        * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
        (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        * doc/invoke.texi (GNU/Linux Options): New section.

2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sparc/sparc.md (setjmp): Rewrite.
        (setjmp_32): Delete.
        (setjmp_64): Likewise.

2006-02-16  Daniel Berlin <dberlin@dberlin.org>

        * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
         previous change.

2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>

        * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
        read-write uses.

2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/26296
        * Makefile.in (loop-invariant.c): Add except.h dependency.
        * loop-invariant.c: Include except.h.
        (find_invariant_insn): Ignore insns satisfying can_throw_internal.

2005-02-16  Paul Brook  <paul@codesourcery.com>

        * reload1.c (emit_reload_insns): Invalidate dead input registers used
        for reloads.

2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>

        PR rtl-optimization/25636
        * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
        when deciding whether an insn is an initializing insn.

2006-02-15 Daniel Berlin  <dberlin@dberlin.org>

        * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
        (tree_code_size): Ditto.
        * tree.h (struct tree_memory_tag): Remove parent_var.
        (struct tree_struct_field_tag): New.
        (SFT_OFFSET): New.
        (SFT_SIZE): New.
        (union tree_node): Add sft member.
        * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
        specially here.
        (create_sft): Add size and offset argument, set SFT_OFFSET and
        SFT_SIZE.
        (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
        * treestruct.def: Add TS_STRUCT_FIELD_TAG.
        * tree-flow-inline.h (get_subvar_at): Update for
        SFT_OFFSET/SFT_SIZE.
        (var_can_have_subvars): Ditto.
        (overlap_subvar): Ditto.
        * print-tree.c (print_node): Print out interesting things for
        SFT's.
        * tree-flow.h (struct subvar): Remove offset and size members.
        * tree-ssa-operands.c (get_expr_operands): Update for
        get_indirect_ref_operands changes.
        (get_indirect_ref_operands): Call add_virtual_operand instead of
        add_stmt_operand.  Only recurse on base var if requested.
        (access_can_touch_variable): New function.
        (add_stmt_operand): Split virtual operand handling into ...
        (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
        * combine.c (make_extraction): Bail out if ORIG_POS is negative.

        * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
        than TREE_CODE as index into omp_clause_num_ops array.

2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>

        PR rtl-optimization/26184
        * modulo-sched.c (generate_reg_moves): Free bitmap vector
        uses_of_defs.
        * modulo-sched.c (sms_schedule): Free g_arr pointer.
        * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
        must_precede, must_follow and tobe_scheduled.

        PR other/26147
        * opts.c (common_handle_option): Free new_option pointer.
        * df-core.c (df_analyze): Free postorder pointer.

2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>

        * Makefile.in: Fix the examples about the use of stamps

2006-02-15  Michael Matz  <matz@suse.de>

        PR middle-end/22275

        * stor-layout.c (layout_decl): Zero-width bitfields aren't
        influenced by maximum_field_alignment or DECL_PACKED.
        (update_alignment_for_field): Ditto.
        (place_field): Ditto.
        * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
        this behaviour.

2006-02-15  Paolo Bonzini  <bonzini@gnu.org>

        * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
        (debug_flow_info): Pass it.
        * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
        * bb-reorder.c (reorder_basic_blocks): Likewise.
        * cfgcleanup.c (rest_of_handle_jump2): Likewise.
        * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
        * flow.c (life_analysis, recompute_reg_usage): Likewise.
        * gcse.c (gcse_main, bypass_jumps): Likewise.
        * ifcvt.c (rest_of_handle_if_conversion): Likewise.
        * local-alloc.c (rest_of_handle_local_alloc): Likewise.
        * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
        * profile.c (compute_branch_probabilities, branch_prob): Likewise.
        * rtl.h (dump_flow_info): Adjust prototype.
        * tracer.c (rest_of_handle_tracer, tracer): Likewise.
        * var-tracking.c (variable_tracking_main): Likewise.
        * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
        * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
        options.

2006-02-15  Marcin Dalecki <martin@dalecki.de>

        * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
        construction.

2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/26209
        * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
        * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
        eh edges.
        * tree-cfg.c (replace_uses_by): Do not alter cfg.

2006-02-14  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/23670
        * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
        (X,Y) and the corresponding symmetry related transformations.
        (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
        (X,Y) and its symmetry related transformations.

2006-02-14  Roger Sayle  <roger@eyesopen.com>

        * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
        and GEU.

2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>

        * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.

2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        PR bootstrap/26053
        * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
        support COMDAT group.
        * configure: Regenerate.

2006-02-14  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/26279
        PR middle-end/26280
        PR middle-end/26283
        * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.

2006-02-14  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR tree-optimization/26260

        * doc/invoke.texi (max-fields-for-field-sensitive): Document
        param.
        * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
        * 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):
        Document.
        * tree-ssa-loop-niter.c (number_of_iterations_ne,
        number_of_iterations_lt, number_of_iterations_cond): Remember the shape
        of the ending condition.
        * tree-ssa-loop-manip.c: Include params.h.
        (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
        tree_unroll_loop): New functions.
        * tree-pass.h (pass_loop_prefetch): Declare.
        * loop.c (rest_of_handle_loop_optimize): Test for
        -fprefetch-loop-arrays-rtl.
        * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
        * timevar.def (TV_TREE_PREFETCH): New timevar.
        * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
        pass_loop_prefetch): New.
        * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
        (cleanup_tree_cfg_loop): Call scev_reset.
        * common.opt (fprefetch-loop-arrays-rtl): Add.
        * tree-ssa-loop-prefetch.c: New file.
        * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
        (new_temp_expr_table): Initialize expr_vars.
        (free_temp_expr_table): Cleanup expr_vars.
        (check_replaceable, find_replaceable_in_bb): Prevent accumulating
        expressions from being merged into one.
        * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
        (struct tree_niter_desc): Add control, bound and cmp fields.
        (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
        Declare.
        * Makefile.in (tree-ssa-loop-prefetch.o): Add.
        (tree-cfgcleanup.o): Add SCEV_H dependency.
        (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
        * passes.c (init_optimization_passes): Add pass_loop_prefetch.

2006-02-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26258
        * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
        in PHI argument processing.

2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>

        * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
        new expression in the requested machine mode.

2006-02-13  Roger Sayle  <roger@eyesopen.com>

        * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
        directly, instead let do_compare_rtx_and_jump handle this for us.
        * expr.c (expand_expr_real_1): Likewise.
        * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
        before do_jump_by_parts_greater.
        (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
        * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.

2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa/quadlib.c: Use defines instead of enum qfcmp_magic.

2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/26235
        * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
        (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
        format.

2006-02-13  Jeff Law  <law@redhat.com>

        * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
        TRUTH_XOR_EPR.

2006-02-13  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/26092
        * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
        twice if decl is a builtin.  When trying again, call get_callee_fndecl
        first to verify it is still a builtin.

2006-02-13  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (base_type_die): Don't add AT_name here.
        (subrange_type_die): Don't add AT_name here.
        (modified_type_die): Rearrange code flow.  Do add AT_name here.

2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/26247
        PR rtl-optimization/26248
        * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.

2006-02-13  Richard Sandiford  <richard@codesourcery.com>

        * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
        * config/fixtfdi.c: Likewise.
        * config/fixunstfdi.c: Likewise.
        * config/floatditf.c: Likewise.

2006-02-13  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/24427
        * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
        into (X,C2) if C1 is a subset of the bits of C2.  Transform
        (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
        (X&(C1&~C2))|C2.
        <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).

2006-02-13  Josh Conner  <jconner@apple.com>

        PR target/25376
        * varasm.c (function_section): Check for section name before
        calling select_section on targets that define
        USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
        unlikely_text_section instead of hot_function_section if
        first_function_block_is_cold.

2006-02-13  J"orn Rennecke <joern.rennecke@st.com>

        PR middle-end/25335
        * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.

2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/26222
        * function.c (assign_stack_temp_for_type): Do not reuse stack slots
        after tree->rtl expansion.
        * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
        before passing it to emit_move_insn.

2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        * doc/invoke.texi (-Write-strings): Document that it is enabled by
        default. 
        * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
        Clarify documentation.
        * c-common.h (warn_write_strings): Remove.
        * c-common.c (warn_write_strings): Likewise.
        * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
        default for C++.

2006-02-12  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/25724
        * dojump.c (do_jump): Call do_compare_rtx_and_jump.
        (do_jump_parts_zero_rtx): New function renamed from
        do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
        (do_jump_parts_equality_rtx): New function split out from
        do_jump_parts_equality.  Old implementation renamed as above.
        Call do_jump_parts_zero_rtx if either operand is zero.
        (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
        do all of the heavy lifting.
        (do_compare_rtx_and_jump): Handle multi-word comparisons by
        calling either do_jump_by_parts_greater_rtx or
        do_jump_by_parts_equality_rtx.
        * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
        * expmed.c (do_cmp_and_jump): Now multi-word optimization has
        moved to do_compare_rtx_and_jump, call it directly.
        * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
        mode argument.  Call do_compare_rtx_and_jump.
        (emit_case_nodes): Update calls to do_jump_if_equal.

2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/26225
        * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.

2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/26232
        * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.

2006-02-11  Jason Merrill  <jason@redhat.com>

        PR tree-opt/24365
        * tree-inline.c (declare_return_variable): Just don't use the
        modify target if it's a gimple complex reg and the return slot
        isn't.

2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * doc/contrib.texi: Update my entry.

2006-02-10  Geoffrey Keating  <geoffk@apple.com>

        * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.

2006-02-10  Diego Novillo  <dnovillo@redhat.com>

        * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
        expensive.

2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>

        * doc/invoke.texi (-floop-optimize2): Removed.
        * toplev.c (process_options): Remove handling of flag_loop_optimize2.
        * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
        Test flag_branch_on_count_reg only if HAVE_doloop_end.
        * common.opt (floop-optimize2): Removed.
        (fmove-loop-invariants): Enabled by default.

2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>

        * tree-if-conv.c (combine_blocks): Free the result of
        get_loop_exit_edges.

2006-02-10  Jeff Law  <law@redhat.com>

        * fold-const.c (tree_expr_nonzero_p): Fix thinko.

        PR tree-optimization/26213
        * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
        loop trying to follow SSA_NAME_VALUE chains.

2006-02-10  Richard Guenther  <rguenther@suse.de>

        * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
        deal with structures that end in implicitly variable sized arrays.

2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/24762
        * df-scan.c (df_bb_refs_record): Record correct registers defined on
        eh edges.

2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
        (struct ivopts_data): Add regs_used field.
        (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
        (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
        instead of loop_data->regs_used;
        (free_loop_data): Do not free aux fields for loops.
        (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
        and tree_ssa_iv_optimize_finalize.

2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.

2006-02-09  J"orn Rennecke <joern.rennecke@st.com>

        PR target/26141
        * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
        computing the effective result type.

2006-02-09  J"orn Rennecke <joern.rennecke@st.com>

        PR inline-asm/16194
        * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
        (tree_overlaps_hard_reg_set): Declare.
        * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
        type and signature to match function type expected by walk_tree.
        (tree_overlaps_hard_reg_set): New function.
        (decl_conflicts_with_clobbers_p): Rename to:
        (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
        Use tree_overlaps_hard_reg_set.  Changed caller.
        * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
        decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
        * cris.c (cris_md_asm_clobbers): Likewise.

2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>

        * reload1.c (emit_input_reload_insns): Delete code that tries to
        inherit using find_equiv_reg.

2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        * c-common.h (flag_const_strings): Don't declare.
        * c-common.c (flag_const_strings): Remove.
        * c.opt (fconst_strings): Remove.
        * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
        <OPT_Wwrite_strings>: Don't set flag_const_strings.
        (c_common_init_options): Don't set flag_const_strings.
        * doc/invoke.texi (-fno-const-strings): Remove documentation.

2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>

        * arm.md (tlobits_cbranch): New pattern.
        * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
        testing a single bit.

2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/26179
        * tree-ssa-pre.c (create_component_ref_by_pieces):
        Handle RETURN_DECL like VAR_DECL.

2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>

        PR middle-end/26134
        * 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): 
        Volatile variables should not have subvariables.

2006-02-09  Diego Novillo  <dnovillo@redhat.com>

        PR 26180
        * tree-vrp.c (vrp_int_const_binop): Detect overflow when
        multiplying unsigned values.
        Tidy comments.

2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sparc/sparc.c (tls_call_delay): Fix oversight.

2006-02-08  Jason Merrill  <jason@redhat.com>

        PR c++/25979
        * tree.def: Elaborate on difference from MODIFY_EXPR.
        * doc/c-tree.texi (INIT_EXPR): Likewise.
        * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
        (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
        (gimplify_target_expr): Likewise.
        (gimplify_cond_expr): Remove target handling.
        (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
        (gimplify_expr): Clobber it here.
        (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
        Do return slot optimization if we have an INIT_EXPR.

        PR tree-opt/24365
        * tree-inline.c (declare_return_variable): Also clear 
        DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.

        PR c++/16405
        * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.

        PR middle-end/22439
        * gimplify.c (gimplify_one_sizepos): Fix typo.

2006-02-08  Jeff Law  <law@redhat.com>

        PR tree-optimization/21417
        * tree-ssa-threadedge.c (thread_across_edge): Reject threading
        across a backedge if the control statement at the end of the
        block is data dependent on other statements in the same block.
        (record_temporary_equivalences_from_stmts): Remove over-conservative
        test for threading across backedges.

        * tree-ssa-dce.c (remove_dead_statement): When removing a dead
        control statement, handle all three special cases in the same
        manner as they all have the same desired solution.  No longer
        special case edge flag updating when the post dominator is
        the exit block.

2006-02-08  Roger Sayle  <roger@eyesopen.com>

        * tree.def (CHAR_TYPE): Remove.
        * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
        * dwarf2out.c (base_type_die, is_base_type): Likewise.
        (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
        (gen_string_type_die): Delete unreachable function.

        * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
        * tree.c (build_int_cst_wide, type_contains_placeholder_1,
        type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
        * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
        * builtins.c (type_to_class): Likewise.
        * fold-const.c (fold_convert, build_range_check,
        merge_ranges): Likewise.
        * expr.c (count_type_elements): Likewise.
        * c-pretty-print.c (pp_c_type_specifier): Likewise.
        * stor-layout.c (layout_type): Likewise.
        * ipa-type-escape.c (type_to_consider): Likewise.
        * gimplify.c (omp_firstprivatize_type_sizes,
        gimplify_type_sizes): Likewise.
        * explow.c (promote_mode): Likewise.
        * tree-sra.c (is_sra_scalar_type): Likewise.
        * varasm.c (output_constant): Likewise.
        * tree-inline.c (remap_type_1): Likewise.
        * convert.c (convert_to_pointer, convert_to_real,
        convert_to_integer, convert_to_complex): Likewise.

2006-02-08  Daniel Berlin  <dberlin@dberlin.org>

        * df-scan.c (df_def_record_1): A set destination may
        be a parallel regardless of mode.

2006-02-08  Roger Sayle  <roger@eyesopen.com>

        PR target/22209
        * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
        * config/mips/_tilib.c: Remove.
        * config/fixtfdi.c: New libgcc source file.
        * config/fixunstfdi.c: New source file.
        * config/floatditf.c: New source file.
        * config/floatunditf.c: New souce file.
        * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
        files above instead of config/mips/_tilib.c.
        * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.

2006-02-08  Jeff Law  <law@redhat.com>

        PR tree-optimization/26169
        * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
        threading jumps.

2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>

        * df.h (DF_REG_SIZE): Return the length of the initialized
        part of the array.

2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>

        * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
        __muldf3): Return a correctly signed zero.

2006-02-08  Paolo Bonzini  <bonzini@gnu.org>

        * passes.c (register_one_dump_file): Accept the current properties
        instead of pass number.  Adjust call to dump_register.  Remove
        duplicated code.
        (register_dump_files): Now a wrapper around...
        (register_dump_files_1): ... this one.  Do not modify the pass
        structure.
        (next_pass_1): Cosmetic fix.
        (execute_todo): Keep second parameter only.  Use curr_properties
        instead of fetching it from the pass structure.  Check and set
        last_verified.
        (execute_one_pass): Handle TODO_set_props.  Use curr_properties
        instead of fetching it from the pass structure.  Fix calls to
        execute_todo.  Update curr_properties and initialize .vcg RTL dump
        after running the pass.  Reset last_verified.
        * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
        at the beginning.
        (FIRST_AUTO_NUMBERED_DUMP): New.
        (dump_register): Remove "num" parameter, assign it within the
        function.
        (get_dump_file_name): Modify template for dumps.
        * tree-dump.h (dump_register): Adjust prototype.
        * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
        (PROP_trees): Add PROP_gimple_lomp.
        (TODO_set_props): New.
        * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
        * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
        * cfgexpand.c (pass_expand): Destroy PROP_trees.

2006-02-08  Jakub Jelinek  <jakub@redhat.com>

        * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
        (sparc64-*-linux*): Likewise.
        * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
        * config/sparc/t-linux: New file.
        * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
        __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
        (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
        -m32 -mlong-double-128.

        * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
        * config/alpha/t-linux: New file.
        * config/alpha/libgcc-alpha-ldbl.ver: New file.

        * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
        __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
        (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
        * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
        __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
        (CPP_ARCH32_SPEC): Remove.

2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>

        PR tree-optimization/26145
        * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
        bbs pointer.

2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/26109
        * pa.c (attr_length_indirect_call): Don't return length 8 for distances
        >= 240000 when generating code for SOM runtime.
        (output_indirect_call): Don't use "b,l" instruction for indirect calls
        to $$dyncall when generating code for SOM runtime..

2006-02-07  Dirk Mueller  <dmueller@suse.com>

        PR c++/18150
        * doc/invoke.texi (-Wsequence-point): Update documentation
        that -Wsequence-point is implemented for C++ as well.

2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
        * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
        (LIB_SPEC): Likewise.
        * doc/invoke.texi (SPARC options): Document -pthread.

2006-02-07  Geoffrey Keating  <geoffk@apple.com>

        * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
        PIC addresses.

2006-02-07  Roger Sayle  <roger@eyesopen.com>

        * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
        Correct comment describing BOOLEAN_TYPE.

2006-02-07  Dirk Mueller  <dmueller@suse.com>

        * c.opt: C++ frontend supports -Wdiv-by-zero.
        * c-opts.c (c_common_handle_option): Remove dead case.

2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * configure.ac (TLS assembler check): Do not enable TLS by
        default on SPARC/Solaris before version 10.
        * configure: Regenerate.

2006-02-07  David Edelsohn  <edelsohn@gnu.org>

        * doc/invoke.texi (xl-compat): Document conversion and support
        routine names.

2006-02-07  Jeff Law  <law@redhat.com>

        * tree-vrp.c (find_conditional_asserts): Update comments.
        (simplify_stmt_for_jump_threading): New.
        (identify_jump_threads, finalize_jump_threads): New.
        (vrp_finalize): Call identify_jump_threads.
        (execute_vrp): Call finalize_jump_threads.
        * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
        (vrp_element, vrp_data, vrp_element_p): Remove.
        (vrp_hash_elt, vrp_variables_stack): Remove.
        (vrp_hash, vrp_eq, record_range): Remove.
        (simplify_cond_and_lookup_avail_expr): Remove.
        (extract_range_from_cond): Remove.
        (thread_across_edge): Relocated into tree-ssa-threadedge.c.
        (simplify_stmt_for_jump_threading): New.
        (dom_thread_across_edge): New wrapper.
        (tree_ssa_dominator_optimize): No longer initialize or
        finalize any of the VRP datastructures.  Remove iteration
        step and simplify as a result of removal of iteration step.
        (pass_dominator): Perform a cfg cleanup after DOM.
        (dom_opt_finalize_block): Use the new common routines
        for threading jumps.  Simplify stack management slightly.
        No longer need to unwind VRP state.
        (record_equivalences_from_incoming_edge): No longer record
        VRP information.
        (eliminate_redundant_computations): No longer call
        simplify_cond_and_lookup_avail_expr.
        * tree-flow.h (potentially_threadable_block): Prototype.
        (thread_across_edge): Likewise.
        * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
        (tree-ssa-threadedge.o): Add dependencies.
        * tree-ssa-threadedge.c: New file.
        * passes.c (init_optimization_passes): Merge PHIs before
        calling VRP.  Run VRP again late in the SSA optimization pipeline.

2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * df-core.c (df_set_blocks): Do not dereference function pointers.
        (df_finish1): Likewise.
        (df_hybrid_search_forward): Likewise.
        (df_hybrid_search_backward): Likewise.
        (df_iterative_dataflow): Likewise.
        (df_analyze_problem): Likewise.
        (df_compact_blocks): Likewise.
        (df_dump): Likewise.
        * df-scan.c (df_rescan_blocks): Likewise.
        (df_record_entry_block_defs): Likewise.

        * genconditions.c (write_conditions): Guard the definition of
        'insn_conditions' with the check on GCC version.
        (write_writer): Guard the traversal 'insn_conditions' with
        the check on GCC version.

2006-02-07  Richard Guenther  <rguenther@suse.de>

        PR c++/26140
        Revert
        2006-01-30  Richard Guenther  <rguenther@suse.de>
        PR c++/23372
        * gimplify.c (gimplify_target_expr): Handle easy cases
        without creating a temporary.

2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>

        * 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.
        (schedule_insns): Initialize it.
        (GET_SRC_PROB): Removed.
        * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.

2006-02-07  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/24444
        * config/ia64/unwind-ia64.c: Revert last change.
        * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
        (INCOMING_FRAME_SP_OFFSET): Define.

2006-02-06  Roger Sayle  <roger@eyesopen.com>

        * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.

2006-02-07  Ben Elliston  <bje@au.ibm.com>

        * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
        (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
        (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
        (ix86_return_in_memory): Handle TDmode.
        (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
        (ix86_value_regno): Return non-TDmode decimal float modes in %eax.

2006-02-06  Richard Sandiford  <richard@codesourcery.com>

        * reorg.c (dbr_schedule): Use dump_file instead of file.

2006-02-06  Steve Ellcey  <sje@cup.hp.com>

        PR target/25917
        * config/ia64/predicates.md (extr_len_operand): New predicate.
        * config/ia64/ia64.md (extv): Tighten constraints.
        (extzv): Ditto.
        (*tbit_and_2): Ditto.
        (*tbit_and_3): Ditto.
        (*tbit_or_2): Ditto.
        (*tbit_or_3): Ditto.
        (*bit_zero): Ditto.
        (*bit_one): Ditto.

2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/23359
        * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.

2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-vrp.c (execute_vrp): Do not pass dump argument to.
        loop_optimizer_init and loop_optimizer_finalize
        * tree-ssa-sink.c (execute_sink_code): Ditto.
        * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
        * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
        tree_ssa_loop_done): Ditto.
        * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
        * sched-ebb.c: Include output.h.
        (schedule_ebbs): Do not use dump argument.
        * value-prof.h (struct profile_hooks): Remove profile_dump_file.
        * loop.c (loop_dump_stream): Removed.
        (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
        argument.
        (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
        emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
        final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
        loop_iterations, strength_reduce, record_biv, record_giv,
        final_giv_value, check_final_value, check_ext_dependent_givs,
        combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
        try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
        dump_file instead of loop_dump_stream.
        * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
        argument dump_file.
        * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
        dump argument.
        * flow.c (life_analysis, rest_of_handle_life): Ditto.
        * haifa-sched.c: Include output.h
        (schedule_insns, sched_init): Do not use dump argument.
        * mode-switching.c (optimize_mode_switching): Ditto.
        * modulo-sched.c (stats_file): Removed.
        (print_node_sched_params): Do not call argument dump_file.
        (sms_schedule_by_order, loop_canon_p, sms_schedule,
        rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
        of stats_file.
        * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
        use dump argument.
        * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
        rtl_loop_init, rtl_loop_done): Ditto.
        * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
        * predict.c (combine_predictions_for_bb, tree_estimate_probability):
        Ditto.
        * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
        * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
        * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
        rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
        * emit-rtl.c (renumber_insns): Ditto.
        * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
        expand_gimple_basic_block, tree_expand_cfg): Ditto.
        * regclass.c (regclass): Ditto.
        * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
        remove_ssa_form, rewrite_out_of_ssa): Ditto.
        * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
        convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
        Ditto.
        * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
        * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
        to regclass.
        * gcse.c (gcse_file, debug_stderr): Removed.
        (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
        rest_of_handle_gcse): Do not use dump argument.
        (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
        one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
        pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
        compute_code_hoist_vbeinout, compute_code_hoist_data,
        one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
        compute_store_table, build_store_vectors, insert_insn_start_bb,
        insert_store, remove_reachable_equiv_notes, replace_store_insn,
        store_motion): Use dump_file instead of gcse_file.
        * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
        * profile.c (profile_dump_file): Removed.
        (branch_prob): Use dump_file instead of profile_dump_file.
        * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
        dump_file.
        * tree-ssa-copy.c (dump_copy_of): Ditto.
        * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
        dump file to life_analysis.
        * bt-load.c (branch_target_load_optimize): Ditto.
        * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
        renumber_insns.
        * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
        regclass, dbr_schedule): Declaration changed.
        * sched-int.h (sched_init): Declaration changed.
        * tree-profile.c (tree_profile_dump_file): Removed.
        (tree_profile_hooks): Removed profile_dump_file hook.
        * rtl-profile (rtl_profile_dump_file): Removed.
        (rtl_profile_hooks): emoved profile_dump_file hook.
        * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
        changed.
        * c-gimplify.c (c_genericize): Do not call local variable dump_file.
        * tree-cfg.c (build_tree_cfg): Ditto.
        * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
        * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
        Declaration changed.
        * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
        life_analysis and schedule_insns.
        * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
        life_analysis.
        * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
        dbr_schedule.
        * config/mips/mips.c (mips_reorg): Ditto.
        * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
        schedule_ebbs.

2006-02-06  Aldy Hernandez  <aldyh@redhat.com>

        * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
        (s390_mangle_fundamental_type): New.
        * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
        Define.

        * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
        (alpha_mangle_fundamental_type): New.
        * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
        Define.

        * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
        Define.
        * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
        Define.
        * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
        (sparc_mangle_fundamental_type): New.

2006-02-06  Jakub Jelinek  <jakub@redhat.com>

        * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
        (s390x-*-linux*): Likewise.
        * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
        * config/s390/t-linux: New file.

2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
        sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.

2006-02-06  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
        (ANTIC_SAFE_LOADS): New macro.
        (find_or_generate_expression): Add prototype.
        (set_contains_value): Allow null set for sake of not always having
        to allocate ANTIC_SAFE_LOADS.
        (phi_translate): Move placement of AGGREGATE_TYPE_P check.
        Allow COMPONENT_REF too.
        (valid_in_set): Allow COMPONENT_REF.
        Check ANTIC_SAFE_LOADS too.
        (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
        (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
        rename.
        (can_PRE_operation): Add COMPONENT_REF.
        (create_component_ref_by_pieces): New function.
        (create_expression_by_pieces): Use create_component_ref_by_pieces.
        (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.
        * configure: Regenerate.

2006-02-06  Ben Elliston  <bje@au.ibm.com>

        * read-rtl.c (read_name): Terminate reading on EOF.

2006-02-06  Ben Elliston  <bje@au.ibm.com>

        * dfp.c (decimal_real_arithmetic): Change second argument type
        from int to enum tree_code. Do not always return true, but now
        return result of any call to decimal_do helper functions.
        * dfp.h (decimal_real_arithmetic): Update prototype.

2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.

2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/25251
        * tree-cfg.c (cleanup_dead_labels): Also don't remove
        forced labels.

2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-vrp.c (cfg_loops): Removed.
        (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
        Use current_loops instead of cfg_loops.  Pass flags to
        loop_optimizer_init.
        * cfgloopmanip.c (fix_loop_structure): Update only available
        information.
        * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
        loop_optimizer_init.
        * modulo-sched.c (build_loops_structure): Removed.
        (sms_schedule): Use loop_optimizer_init.
        * loop-init.c (loop_optimizer_init): Use flags to determine
        which properties of loops to prepare.
        (rtl_loop_init): Pass flags to loop_optimizer_init.
        * tree-ssa-sink.c (execute_sink_code): Ditto.
        * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
        * tree-ssa-pre.c (init_pre): Ditto.
        * cfgloop.h (LOOPS_NORMAL): New.
        (loop_optimizer_init): Declaration changed.

2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
        * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
        pa/t-pa.
        * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
        pa/t-pa.
        * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
        pa/x-ada.
        * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
        * pa/t-pa64: Delete quadlib.c rule.
        * pa/x-ada: Revert last change.
        * pa/t-pa: Revert last change.  Delete quadlib.c rule.

2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/26087
        * rtlanal.c (canonicalize_condition): Do not cross basic block
        boundaries.

2006-02-04  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/24444
        * config/ia64/ia64.c: Include debug.h.
        (MAX_ARTIFICIAL_LABEL_BYTES): New.
        (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
        (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
        (process_epilogue, process_set, process_for_unwind_directive):
        Output unwind info only if requested.  Add CFA info if requested.
        Add new arguments as needed.  Adjust callers.
        * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
        incorrect default.
        (DWARF2_FRAME_INFO): Define to zero.
        * config/ia64/unwind-ia64.c: Remove code that compensated for
        the CFA offset error fixed above.
        * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
        * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
        (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
        -funwind-tables and -fexceptions to enable frame info.
        (dwarf2out_frame_init): Define initial CFA even if
        DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
        DWARF2_UNWIND_INFO is nonzero, not just defined.
        (dwarf2out_frame_finish): Output non-EH call frame info only
        if DWARF2_FRAME_INFO is nonzero.
        (convert_cfa_to_loc_list,
        compute_frame_pointer_to_cfa_displacement): Define even if
        unwind info is not supported.
        (gen_subprogram_die): Use the above unconditionally.  Remove
        legacy alternate code.
        * toplev.c (compile_file): Compile in call to
        dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
        (lang_dependent_init): Ditto for dwarf2out_frame_init.

2006-02-04  David Edelsohn  <edelsohn@gnu.org>
            Jakub Jelinek  <jakub@redhat.com>

        * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
        IBM extended float format long double as "g" on powerpc*-linux.

2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/25926
        * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
        * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.

2006-02-03  Jason Merrill  <jason@redhat.com>

        PR c++/25979
        * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.

        PR middle-end/25977
        * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
        on the return slot if it's an NRV.

2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
        (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
        rewrite_use): Do not handle USE_OUTER.
        (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
        add_iv_outer_candidates, may_replace_final_value,
        determine_use_iv_cost_outer, rewrite_use_outer): Removed.
        (find_interesting_uses_op): Functionality of
        find_interesting_uses_outer_or_nonlin moved here.
        (find_interesting_uses_outside): Use find_interesting_uses_op.

2006-02-03  Alan Modra  <amodra@bigpond.net.au>

        PR target/25960
        * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.

2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
            Ulrich Weigand  <uweigand@de.ibm.com>

        PR target/25864
        * 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 
        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.
        (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
        Define secondary reloads for TFmode moves.
        (constant_modes): Add TFmode.
        (NR_C_MODES): Set to 8.
        * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
        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, 
        CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
        * 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", 
        "*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", 
        "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
        "*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 
        <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 
        splitters.
        ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2", 
        "extenddftf2", "extendsftf2"): New expanders.
        ("*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, 
        __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
        the new options.

2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/25377
        * config/i386/i386.c (ix86_function_ok_for_sibcall):
        Use targetm.binds_local_p instead of TREE_PUBLIC.

2006-02-02  Roger Sayle  <roger@eyesopen.com>

        * tree.h (TYPE_STRING_FLAG): Document that this field may be used
        on INTEGER_TYPEs to indicate that it denotes a character type.
        * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
        signed_char_type_node, unsigned_char_type_node and char_type_node.
        * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
        INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
        a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.

2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
            Daniel Berlin  <dberlin@dberlin.org>

        * tree-tailcall.c (arg_needs_copy_p): New function.
        (eliminate_tail_call): Use arg_needs_copy_p.
        (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
        (add_virtual_phis): New function.

2006-02-02  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.c (sparc_output_scratch_registers): Use
        #ignore instead of #scratch for %g7 .register directive.

2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>

        * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
        object files.

2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>

        * flow.c (calculate_global_regs_live): Assert that there aren't any
        EDGE_FAKE edges.

2006-02-02  Paolo Bonzini  <bonzini@gnu.org>

        * tree-flow-inline.h (bsi_after_labels): Rewrite, return
        what its name says.
        * lambda-code.c (perfect_nestify): Use bsi_insert_before on
        bsi_after_labels iterator.
        * tree-if-conv.c (find_phi_replacement_condition,
        replace_phi_with_cond_modify_expr): Likewise.
        * tree-scalar-evolution.c (scev_const_prop): Likewise.
        * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.

2006-02-02  Diego Novillo  <dnovillo@redhat.com>

        * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.

2006-02-02  Diego Novillo  <dnovillo@redhat.com>

        PR 25990
        * tree-cfg.c (move_block_to_fn): Clear out the basic block
        array after growing it.

2006-02-01  Steve Ellcey  <sje@cup.hp.com>

        PR middle-end/24901
        * fold-const.c (fold_checksum_tree): Change type of buf.

2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>

        * reload.c (push_secondary_reload): Initialize t_icode.

2006-02-01  Jakub Jelinek  <jakub@redhat.com>

        * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
        -msoft-float -mlong-double-128 only issue a warning, but don't
        swich to DFmode long double.

2006-02-01  Hans-Peter Nilsson  <hp@axis.com>

        * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
        has a constant equivalent, iterate over equivalents for arg0,
        calling simplify_relational_operation and if there's a result
        cheaper than X, apply fold_rtx and return the result.

2006-02-01  Jan Hubicka  <jh@suse.cz>

        * opts.c (no_unit_at_a_time_default): New global variable.
        (decode_options): Use it.
        * opts.h (no_unit_at_a_time_default): Declare.

2006-02-01  Paul Brook  <paul@codesourcery.com>

        * function.c (assign_parm_setup_reg): Use function argument promotion
        rules.
        * expr.c (expand_expr_real_1): Use function argument promotion rules
        for PARM_DECLs.

2006-02-01  Steve Ellcey  <sje@cup.hp.com>

        * gcc.c (process_command): Change j to 'unsigned int'.

2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>

        PR middle-end/26001
        * expr.c (expand_expr_real_1) <case ARRAY_REF>:
        Use the corrected index for the character
        out of the string constant.

2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>

        * mode-switching.c (optimize_mode_switching): Fix size
        allocated for bb_info[n_entities].

2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>

        * gcc.c (main): Correct type that is allocated for
        explicit_link_files.

2006-01-31  Jakub Jelinek  <jakub@redhat.com>

        * config/s390/s390.c (init_alignment_context): Set
        ALIAS_SET_MEMORY_BARRIER on the MEM.
        * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.

2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>

        PR middle-end/25933
        * loop-unroll.c (unroll_loop_runtime_iterations): Free
        dom_bbs pointer.
        * tree-ssa-live.c (type_var_init): Allocate bitmap after
        call to tpa_init.

2006-01-31  Marcin Dalecki  <martin@dalecki.de>

        * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
        * regrename.c: Ditto.
        * tree-ssa-loop-im.c: Ditto.
        * tree-dump.c: Ditto.
        * tree-complex.c: Ditto.
        * genrecog.c: Ditto.
        * tree-ssa-threadupdate.c: Ditto.
        * tracer.c: Ditto.
        * java/class.c: Ditto.
        * java/jcf-parse.c: Ditto.
        * java/resource.c: Ditto.
        * java/except.c: Ditto.
        * java/jvspec.c: Ditto.
        * java/jcf-write.c: Ditto.
        * java/jcf-path.c: Ditto.
        * java/gjavah.c: Ditto.
        * java/zextract.c: Ditto.
        * java/jcf-io.c: Ditto.
        * java/jcf.h: Ditto.
        * java/buffer.c: Ditto.
        * java/lang.c: Ditto.
        * java/parse-scan.y: Ditto.
        * java/lex.c: Ditto.
        * java/lex.h: Ditto.
        * cfgloopmanip.c: Ditto.
        * postreload-gcse.c: Ditto.
        * tree-ssa-loop-manip.c: Ditto.
        * postreload.c: Ditto.
        * tree-ssa-loop-ch.c: Ditto.
        * loop.c: Ditto.
        * ipa-cp.c: Ditto.
        * cppspec.c: Ditto.
        * diagnostic.c: Ditto.
        * final.c: Ditto.
        * genoutput.c: Ditto.
        * gcc.c: Ditto.
        * cfghooks.c: Ditto.
        * cfgloopanal.c: Ditto.
        * objc/objc-act.c: Ditto.
        * gcov.c: Ditto.
        * genextract.c: Ditto.
        * genautomata.c: Ditto.
        * pretty-print.c: Ditto.
        * genemit.c: Ditto.
        * cgraphunit.c: Ditto.
        * flow.c: Ditto.
        * df-scan.c: Ditto.
        * haifa-sched.c: Ditto.
        * dominance.c: Ditto.
        * dbxout.c: Ditto.
        * tree-ssa-loop-ivopts.c: Ditto.
        * df-core.c: Ditto.
        * mode-switching.c: Ditto.
        * modulo-sched.c: Ditto.
        * graph.c: Ditto.
        * ipa-pure-const.c: Ditto.
        * cse.c: Ditto.
        * fix-header.c: Ditto.
        * web.c: Ditto.
        * tree-stdarg.c: Ditto.
        * ipa-utils.c: Ditto.
        * loop-init.c: Ditto.
        * ipa-inline.c: Ditto.
        * cfganal.c: Ditto.
        * global.c: Ditto.
        * alloc-pool.c: Ditto.
        * dwarf2out.c: Ditto.
        * opts.c: Ditto.
        * genattrtab.c: Ditto.
        * tree-ssa-loop-ivcanon.c: Ditto.
        * predict.c: Ditto.
        * timevar.c: Ditto.
        * lcm.c: Ditto.
        * fortran/gfortranspec.c: Ditto.
        * regmove.c: Ditto.
        * local-alloc.c: Ditto.
        * langhooks.c: Ditto.
        * function.c: Ditto.
        * tree-vectorizer.c: Ditto.
        * gcse.c: Ditto.
        * ipa-type-escape.c: Ditto.
        * alias.c: Ditto.
        * tree-if-conv.c: Ditto.
        * profile.c: Ditto.
        * ipa.c: Ditto.
        * tree-data-ref.c: Ditto.
        * loop-unroll.c: Ditto.
        * treelang/treetree.c: Ditto.
        * calls.c: Ditto.
        * bt-load.c: Ditto.
        * ggc-common.c: Ditto.
        * except.c: Ditto.
        * coverage.c: Ditto.
        * cselib.c: Ditto.
        * tree-cfgcleanup.c: Ditto.
        * tree-ssa-pre.c: Ditto.
        * cfgcleanup.c: Ditto.
        * loop-invariant.c: Ditto.
        * loop-iv.c: Ditto.
        * ipa-prop.c: Ditto.
        * print-tree.c: Ditto.
        * conflict.c: Ditto.
        * ggc-page.c: Ditto.
        * sched-deps.c: Ditto.
        * regclass.c: Ditto.
        * tree-object-size.c: Ditto.
        * combine.c: Ditto.
        * bb-reorder.c: Ditto.
        * resource.c: Ditto.
        * var-tracking.c: Ditto.
        * cfgloop.c: Ditto.
        * df-problems.c: Ditto.
        * reg-stack.c: Ditto.
        * tlink.c: Ditto.
        * gccspec.c: Ditto.
        * sched-rgn.c: Ditto.
        * tree-ssa-structalias.c: Ditto.
        * tree-ssa-reassoc.c: Ditto.
        * config/darwin-c.c: Ditto.
        * config/darwin.c: Ditto.
        * config/arm/arm.c: Ditto.
        * cfgrtl.c: Ditto.
        * collect2.c: Ditto.
        * reload1.c: Ditto.

2006-01-31  Nicolas Pitre  <nico@cam.org>

        * arm.md (smaxsi3): Make aware of smax_m1.
        (smax_m1): New.

2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>

        * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.

2006-01-31  Richard Guenther  <rguenther@suse.de>

        * doc/invoke.texi (-msselibm): Document.
        * target.h (expand_library_builtin): New target hook.
        * builtins.c (expand_builtin): Use expand_library_builtin.
        (default_expand_library_builtin): New function.
        * gcc.c (LINK_GCC_MATH_SPEC): Define.
        (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
        (link_gcc_math_spec): Declare.
        (static_specs): Add link_gcc_math_spec.
        * expr.h (default_expand_library_builtin): Declare.
        * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
        (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
        * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
        * config/i386/i386.opt (msselibm): New target option.
        * config/i386/i386.c (ix86_builtin_function_variants): New array.
        (ix86_init_sse_abi_builtins): New function.
        (ix86_expand_library_builtin): Likewise.
        (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
        (override_options): Handle error conditions wrt -msselibm.
        (ix86_builtins): Add function codes for SSE2 ABI builtins.
        (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
        * doc/extend.texi (__builtin_sse2_*): Document new target specific
        builtins.

2006-01-31  Richard Guenther  <rguenther@suse.de>
        Paolo Bonzini  <bonzini@gnu.org>

        * doc/install.texi (--disable-libgcc-math): Document.

2006-01-30  Marcin Dalecki  <martin@dalecki.de>

        * expr.h (expand_normal): new inline function.
        * builtins.c: use it, use EXPAND_NORMAL explicitely.
        * dojump.c: use it.
        * dwarf2out.c: use it.
        * expr.c: use it.
        * calls.c: use it.
        * expmed.c: use it.
        * except.c: use it.
        * config/sparc/sparc.c: use it.
        * config/i386/i386.c: use it.
        * config/rs6000/rs6000.c: use it.
        * config/arm/arm.c: use it.
        * config/mips/mips.c: use it.
        * stmt.c: use it, use EXPAND_NORMAL explicitely.

2006-01-30  Roger Sayle  <roger@eyesopen.com>

        * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
        argv to the appropriate type.

2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
        unreachable code.

2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>

        PR target/26018
        * config/s390/s390.c (struct machine_function): New flag
        decomposed_literal_pool_addresses_ok_p.
        (s390_reorg): Set it before final stage of literal pool transforms.
        (s390_decompose_address): Only accept displacements of the form
        (minus (label_ref ...) (label_ref ...)) if that flag is set.

2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>

        * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
        the comparison routine return.

2006-01-30  Michael Matz  <matz@suse.de>

        * global.c (find_reg): Only evict for global regs.
        Take n_refs into account and dump more info.

2006-01-30  J"orn Rennecke <joern.rennecke@st.com>

        PR target/14798:
        * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
        (pragma_trap, pragma_nosave_low_regs): Likewise.
        (current_function_anonymous_args): Likewise.
        (sh_deferred_function_attributes): New variable.
        (sh_deferred_function_attributes_tail): Likewise.
        (print_operand): For '@', look up trap_exit attribute.
        (calc_live_regs): Look up trapa_handler attribute.  For trapa
        handlers, save/restore fpscr, but don't do any other
        interrupt-specific saves.
        Don't save r0..r7 if the nosave_low_regs attribute is in effect.
        Fix check for partially saved registers to check for SHmedia.
        (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
        (sh_output_function_epilogue): Don't clear any of the removed
        variables.
        (sh_insert_attributes): Don't check pragma_interrupt.
        Insert deferred attributes.  Check that interrupt attribute is
        present for other attributes that require its presence.
        (sh_attribute_table): Add new attributes trapa_handler and
        nosave_low_regs.
        (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
        Don't check for pragma_interrupt.  Don't store argument.
        * sh.h (pragma_interrupt, sp_switch): Don't declare.
        (sh_deferred_function_attributes): Declare.
        (sh_deferred_function_attributes_tail): Likewise.
        * sh.md (sp_switch_1): Add operand.  Change generator caller.
        (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
        (*return_i): Don't use when trap_exit attribute is in effect.
        (*return_trapa): New insn pattern.
        * sh-c.c: New file.
        * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
        setting c_target_objs and cxx_target_objs.
        * t-sh: Add rule for sh-c.o.

2006-01-30  Richard Guenther  <rguenther@suse.de>

        PR c++/23372
        * gimplify.c (gimplify_target_expr): Handle easy cases
        without creating a temporary.

2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>

        * vec.h (safe_grow): Remove duplicated line.

2006-01-29  Diego Novillo  <dnovillo@redhat.com>

        PR 25874
        * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
        (expand_omp): ... here.
        (expand_omp_parallel): Only remove barriers for combined
        parallel+workshare constructs.

2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>

        Revert

        2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
        * tree.c (build_qualified_type): Chain the new type to the original
        type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
        a POINTER_TYPE or a REFERENCE_TYPE respectively.
        (build_pointer_type_for_mode): Only return unqualified types.
        (build_reference_type_for_mode): Likewise.

2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>

        * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
        * Makefile.in (CXX_COMPAT_WARN): Define.
        * configure: Regenerate.

2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-opt/25911
        * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
        to an if check.

2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        * toplev.c: Fix thinko.

2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
            Marcin Dalecki  <martin@dalecki.de>

        * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
        (push_srcloc): Use XNEW.
        (init_asm_output, default_get_pch_validity): Use XNEWVEC.

2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>

        * df-core.c (df_set_blocks): Deleted all variable.

2006-01-28  Ian Lance Taylor  <ian@airs.com>

        * cgraphunit.c (cgraph_assemble_pending_functions): Call
        cgraph_output_pending_asms.

2006-01-28  Zack Weinberg  <zackw@panix.com>

        * c.opt: Add -W(no-)overlength-strings.
        * doc/invoke.texi: Document it.
        * c-opts.c (c_common_handle_option): -pedantic implies
        -Woverlength-strings, if not explicitly disabled already.
        (c_common_post_options): -Woverlength-strings defaults to off, and
        is always off for C++.
        * c-common.c (fix_string_type): Issue warning about strings longer
        than is portable only if warn_overlength_strings.  Rearrange code
        a little for clarity.
        * configure.in: Check for -Wno-overlength-strings as well before
        enabling -pedantic in stage 1.
        * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
        (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.

        * genconditions.c (write_header, write_one_condition)
        (write_conditions, write_writer): Consolidate very long strings
        that were broken up to fit in C89 portable limit.  Don't use
        printf when fputs will do.

2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (simplify_comparison <AND>): Check
        TRULY_NOOP_TRUNCATION before start using a subreg.

        * config/mips/mips.md (*branch_zero<mode>,
        *branch_zero<mode>_inverted, *branch_equality<mode>,
        *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
        Remove mode check from comparisons.

2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>

        * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.

2006-01-28  Kazu Hirata  <kazu@codesourcery.com>

        * expmed.c (const_mult_add_overflow_p): Remove.
        * expr.h: Remove the prototype for const_mult_add_overflow_p.

        * recog.c (validate_replace_rtx_subexp): Remove.
        * recog.h: Remove the prototype for
        validate_replace_rtx_subexp.

        * integrate.h: Remove the prototype for
        copy_decl_for_inlining.
        * rtl.h: Remove the prototype for mark_constant_function.
        * tree-vectorizer.h: Remove the prototype for
        vect_strip_conversion.

        * modulo-sched.c (create_partial_schedule,
        free_partial_schedule, reset_partial_schedule): Make them
        static.

        * hooks.c (hook_bool_rtx_int_false): Remove.
        * hooks.h: Remove the prototype for hook_bool_rtx_int_false.

2006-01-28  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
        and -mlong-double-128 are incompatible.
        * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
        * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
        (TARGET_LIBGCC2_CFLAGS): Define.
        * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
        (TARGET_LIBGCC2_CFLAGS): Same.
        * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.

2006-01-28  Kazu Hirata  <kazu@codesourcery.com>

        PR c/19606.
        * c-typeck.c (build_binary_op): Perform implicit casts of
        operands before shortening them.

        * cfgloopmanip.c (split_loop_bb): Remove.
        * cfgloop.h: Remove the prototype for split_loop_bb.

        * cfgloop.c (flow_loop_outside_edge_p): Remove.
        * cfgloop.h: Remove the prototype for
        flow_loop_outside_edge_p.

        * emit-rtl.c (init_virtual_regs): Make it static.
        * function.h: Remove the prototype for init_virtual_regs.

        * recog.c (peephole2_optimize): Make it static.
        * recog.h: Remove the prototype for peephole2_optimize.

2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>

        * df-scan.c (df_record_entry_block_defs): Check if
        INCOMING_RETURN_ADDR_RTX is defined.

2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
            Kenneth Zadeck <zadeck@naturalbridge.com>

        PR rtl-optimization/24762
        * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
        * targhooks.c (hook_void_bitmap): New hook prototype.
        * targhoohs.h (hook_void_bitmap): Ditto.
        * bitmap.h (bitmap_head_def): Moved to coretypes.h.
        * coretypes.h (bitmap_head_def): Moved from bitmap.h.
        * target.h (live_on_entry): New function pointer.
        * df-scan.c (df_all_hard_regs): Removed.
        (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
        (df_scan_free_internal): Added df->entry_block_defs.
        (df_scan_alloc): Ditto.
        (df_scan_dump): Ditto.
        (df_uses_record): Plumbed flag field properly thru calls.
        Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
        This part fixes PR24762.
        (df_bb_refs_record): Added code to make the frame and arg
        pointers live in EH blocks.
        (df_refs_record): Added call to df_record_entry_block_defs.
        (df_record_entry_block_defs): New function.
        * df-core.c: Added comments to describe new artifical defs.
        * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
        (entry_block_defs): New field in struct df.
        (df_all_hard_regs): Deleted.
        * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
        * df-problems.c (df_ru_bb_local_compute_process_def):
        Added code to handle artifical defs in the entry to a function.
        (df_ru_bb_local_compute): Ditto.
        (df_rd_bb_local_compute_process_def):  Ditto.
        (df_rd_bb_local_compute): Ditto.
        (df_lr_bb_local_compute): Ditto.
        (df_ur_bb_local_compute): Ditto.
        (df_urec_bb_local_compute):  Ditto.
        (df_chain_create_bb):  Ditto.
        (df_ur_local_finalize): Removed entry.
        (df_urec_init): Ditto.
        (df_urec_local_finalize): Ditto.
        (df_ri_bb_compute): Added detection of last use of pseudos.
        * Makefile.in (df-scan.o): Updated dependencies.
        * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
        * config/mips/mips.c (mips_set_live_on_entry): Added.
        * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
        for target hook.
        * dce.c (marked_insn_p): Added code to handle artifical defs.

2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
        intrinsic.
        (_mm_cvtsi128_si64): Likewise.
        (_mm_cvtsd_si64): Likewise.
        (_mm_cvttsd_si64): Likewise.
        (_mm_cvtsi64_sd): Likewise.
        (_mm_cvtsi64_si128): Likewise.
        * config/i386/mmintrin.h (_m_from_int64): Likewise.
        (_mm_cvtsi64_m64): Likewise.
        (_m_to_int64): Likewise.
        (_mm_cvtm64_si64): Likewise.
        * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
        (_mm_cvttss_si64): Likewise.
        (_mm_cvtsi64_ss): Likewise.
        (_mm_cvtss_f32): Likewise.

2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>

        * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
        for pragma redefine_extname.

2006-01-27  Jakub Jelinek  <jakub@redhat.com>

        PR target/25864
        * libgcc-std.ver: Add GCC_4.1.0 symbol version.
        * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
        -mno-minimal-toc to previous content.
        (bispecs): Remove goal.
        * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
        * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
        compatibility aliases on powerpc-*-*gnu*.
        * config/rs6000/libgcc-ppc-glibc.ver: New file.
        * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
        libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
        (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
        (ldblspecs): New goal.
        * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
        * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
        _df_to_tf.
        * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
        L_sf_to_tf or L_df_to_tf is defined.

2006-01-27  David Edelsohn  <edelsohn@gnu.org>
            Alan Modra  <amodra@bigpond.net.au>

        PR target/25864
        * config/rs6000/linux.h (POWERPC_LINUX): Define.
        * config/rs6000/linux64.h (POWERPC_LINUX): Define.
        * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
        * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
        * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
        * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
        (rs6000_override_options): Initialize rs6000_ieeequad.
        Initialize TFmode format to ibm_extended_format if not
        TARGET_IEEEQUAD.
        (rs6000_handle_option): Accept -mabi= ibmlongdouble and
        ieeelongdouble.
        (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
        (rs6000_return_in_memory): Only return IEEEQUAD in memory.
        (function_arg_advance): IBM long double passed in two FPRs, not
        split.
        (function_arg): IBM long double passed in FPRs.
        (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
        (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
        Only multireg GPR aligned.
        (rs6000_init_libfuncs): Enable IBM long double functions if not
        IEEEQUAD.
        (rs6000_generate_compare): Use IBM long double compare if not
        TARGET_IEEEQUAD.
        * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
        (TARGET_IEEEQUAD): Define.
        (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
        not TARGET_IEEEQUAD.
        * config/rs6000/rs6000.md: Enable TFmode patterns if
        !TARGET_IEEEQUAD.
        * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
        * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
        and -mlong-double-128 are incompatible.
        * doc/invoke.texi (-mabi): Collect options together.  Add
        ibmlongdouble and ieeelongdouble.

2006-01-27  Richard Sandiford  <richard@codesourcery.com>

        * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
        opaque type.
        * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
        * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
        (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
        * rtl.h (rtunion_def): Remove rt_ptr.
        (X0PTR): Delete.
        (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
        (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
        * config/i386/winnt.c (i386_pe_mark_dllexport)
        (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.

2006-01-27 Gabor Loki <loki@gcc.gnu.org>

        * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.

2006-01-26 Alexandre Oliva  <aoliva@redhat.com>

        PR other/24829
        PR target/24831
        * gthr-dce.h: Do not gthrw-ify pthread_once_init,
        pthread_key_delete.  From John David Anglin.  gthrw-ify
        pthread_getunique_np only if it it's not a macro.  Delete
        UNUSED macro.
        (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
        __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
        __gthread_objc_condition_signal, __gthread_key_delete): Add
        "__attribute__ ((__unused__))" to unused arguments.
        (__gthread_recursive_mutex_init_function): Add missing return.
        * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
        gthr-posix95.h: Use macro-based approach for name redirection
        on targets missing weakref.

2006-01-26  Zack Weinberg  <zackw@panix.com>

        * genconditions.c (write_header): In generated code, #ifdef out
        all includes and fake declarations, except includes of bconfig.h
        and system.h, unless GCC_VERSION >= 3001.  Do not include
        gensupport.h in any case.
        (write_conditions): Generate a definition of struct c_test.  Add
        a comment to the generated #endif.
        (write_one_condition): Escape backslashes in string too.
        (write_writer): Generated code must escape backslashes and quote
        marks (but not newlines) in the strings it writes.
        * Makefile.in (build/gencondmd.o): Update dependencies.

2006-01-26  Steve Ellcey  <sje@cup.hp.com>

        PR target/25961
        * Makefile.in (insn-automata.o): Add header file dependencies.
        * genautomata.c: Add includes.

2006-01-26  Steve Ellcey  <sje@cup.hp.com>

        PR target/25961
        * Makefile.in (insn-automata.o): Add -Wno-error flag.

2006-01-26  Paolo Bonzini  <bonzini@gnu.org>

        * configure.ac: Expect target tools paths to be passed from the toplevel
        and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
        AS_SET_VAR_IF.
        * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.

2006-01-26  Alexandre Oliva  <aoliva@redhat.com>

        PR c/25892
        * c.opt (Wpointer-sign): Init to -1.
        * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
        OPT_pedantic, to 0 otherwise.
        * doc/invoke.texi: Update.

2006-01-26  Paolo Bonzini  <bonzini@gnu.org>

        * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
        constants provided by 80387 instructions in the destination mode.

2006-01-26  Richard Guenther  <rguenther@suse.de>
            Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/21470
        partial PR tree-opt/17064
        * tree-ssa-structalias.c (intra_create_variable_infos):
        Create heap variables for incoming parameters if
        flag_argument_noalias > 1.
        (find_what_p_points_to): Look through default defs of
        parameter decls.

2006-01-26  Jeff Law  <law@redhat.com>

        PR ada/25900
        * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
        with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
        within the VR_RANGE, use the VR_RANGE as the result, not the
        VR_ANTI_RANGE.
        (adjust_range_with_scev): Reject ranges from SCEV which are out of
        bounds for the type.

2006-01-26  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-alias.c (maybe_create_global_var): Change
        subvar walking to an assertion that we don't have subvar'd variables.

2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>

        PR C/25861
        * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
        Use a new variable, inner.  PARM_DECLs are always non-weak.

2006-01-26  Shantonu Sen  <ssen@opendarwin.org>

        * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
        --disable-checking.

2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>

        * config/mips/mips.md (*clear_upper32): New combiner pattern.

2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>

        * arm.md (smaxsi3, sminsi3): Convert to define_expand.
        (smax_insn, smin_insn, smax_0, smin_0): New.

2006-01-26  Hans-Peter Nilsson  <hp@axis.com>

        PR target/25947
        * config/cris/cris.c (cris_order_for_addsi3): New function.
        * config/cris/cris-protos.h: Prototype it.
        * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
        (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
        (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
        (split for "op.S1 [rx=rx+i],ry (swapped)")
        (split for "op(s|u).S1 [rx=rx+i],ry")
        (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
        Apply cris_order_for_addsi3 when generating addsi3 insns.

2006-01-25  Diego Novillo  <dnovillo@redhat.com>

        * tree.h (TREE_RANGE_CHECK): Fix range predicate.
        (TREE_BLOCK): Add call to EXPR_CHECK.

2006-01-25  Diego Novillo  <dnovillo@redhat.com>

        PR 25886
        * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
        * tree-pretty-print.c (dump_omp_clause): Extract from ...
        (dump_omp_clauses): ... here.
        (dump_generic_node): Handle OMP_CLAUSE.
        * tree.c (omp_clause_num_ops): New.
        (omp_clause_code_name): New.
        (tree_code_size): Handle OMP_CLAUSE.
        (tree_size): Likewise.
        (make_node): Document handling of OMP_CLAUSE.
        (tree_node_structure): Handle OMP_CLAUSE.
        (omp_clause_check_failed): New.
        (omp_clause_range_check_failed): New.
        (omp_clause_operand_check_failed): New.
        (build_omp_clause): New.
        (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
        * tree.h (enum omp_clause_code): Declare.
        (OMP_CLAUSE_SUBCODE_CHECK): Define.
        (OMP_CLAUSE_RANGE_CHECK): Define.
        (OMP_CLAUSE_ELT_CHECK): Define.
        (omp_clause_check_failed): Declare.
        (omp_clause_operand_check_failed): Declare.
        (omp_clause_range_check_failed): Declare.
        (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
        (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
        (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
        (OMP_CLAUSE_LASTPRIVATE): Likewise.
        (OMP_CLAUSE_IF_EXPR): Likewise.
        (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
        (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
        (OMP_CLAUSE_REDUCTION_CODE): Likewise.
        (OMP_CLAUSE_REDUCTION_INIT): Likewise.
        (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
        (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
        Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
        (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
        (OMP_CLAUSE_DEFAULT_KIND): Likewise.
        (OMP_CLAUSE_CODE): Define.
        (OMP_CLAUSE_SET_CODE): Define.
        (OMP_CLAUSE_CODE): Define.
        (OMP_CLAUSE_OPERAND): Define.
        (struct tree_omp_clause): Declare.
        (union tree_node): Add field 'omp_clause'.
        * treestruct.def (TS_OMP_CLAUSE): Define.
        * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
        OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
        OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
        OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
        OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
        OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
        (OMP_CLAUSE): Define.
        * print-tree.c (print_node): Handle OMP_CLAUSE.
        * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
        * c-typeck.c: Likewise.
        * gimplify.c: Likewise.
        * c-omp.c: Likewise.
        * tree-nested.c: Likewise.
        * tree-inline.c: Likewise.
        * c-parser.c: Likewise.
        * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
        clauses.

2006-01-25  Roger Sayle  <roger@eyesopen.com>

        PR rtl-optimization/25703
        * combine.c (try_combine): Handle zero_extract and strict_low_part
        of non-lowpart SUBREGs for constant reg_subword_p set optimization.

2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>

        * global.c: Fix comment typos.

2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/25758
        * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
        Use output_addr_const instead of assemble_name.

2006-01-25  Paolo Bonzini  <bonzini@gnu.org>

        * Makefile.in (sched-vis.o): Update dependencies.
        * haifa-sched.c (sched_finish): Clear current_sched_info.
        * cfg.c (dump_bb_info): New, split from dump_flow_info.
        (dump_flow_info): Call it.
        * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
        a slim RTL dump.
        * basic-block.h (dump_bb_info): Declare.
        * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
        option, and apply options only for dump files whose TDF_RTL,
        TDF_TREE, or TDF_IPA bits match.
        * rtl.h: Declare new functions exported from sched-vis.c.
        * sched-vis.c: Enable also if scheduling is not used.
        (print_value): Print the mode of registers if not inside scheduling.
        (print_insn): Make it work outside the scheduler.  Beautify the output
        a bit.
        (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.

2006-01-25  Richard Sandiford  <richard@codesourcery.com>

        * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
        * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
        a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
        depending on the value of CONSTANT_POOL_ADDRESS_P.
        * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
        SYMBOL_REF_DECL.
        * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
        rather than SYMBOL_REF_DECL.
        (rtx_constant_pool): Remove const_rtx_sym_htab.
        (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
        (init_varasm_status): Don't initialize const_rtx_sym_htab.
        (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
        Remove handling of const_rtx_sym_htab.
        (find_pool_constant): Delete.
        (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
        rather than find_pool_constant.
        (get_pool_constant_for_function): Delete.
        (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
        find_pool_constant.
        * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
        (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
        (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
        (SYMBOL_REF_CONSTANT): New macro.
        (get_pool_constant_for_function): Delete.
        * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
        rather than SYMBOL_REF_DECL.
        (i386_pe_mark_dllimport): Likewise.
        * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
        rather than SYMBOL_REF_DECL.
        * config/darwin.c (machopic_indirect_data_reference): Likewise.
        (machopic_indirect_call_target): Likewise.

2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>

        * flow.c (delete_noop_moves): Add missing EOL to dump message.

2006-01-25  Richard Sandiford  <richard@codesourcery.com>

        * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.

2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.

2006-01-24  David Daney  <ddaney@avtrex.com>

        PR java/25816
        * configure.ac (enable_tls): New enable option.
        (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
        * configure: Regenerate.
        * doc/install.texi (--enable-tls): Document new option.
        (--disable-tls): Ditto.

2006-01-24  Richard Henderson  <rth@redehat.com>

        * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
        * alias.c (true_dependence): Respect it.
        (canon_true_dependence, write_dependence_p): Likewise.
        * builtins.c (get_builtin_sync_mem): Set it.

2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>

        * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
        efficient way.

2006-01-24  DJ Delorie  <dj@redhat.com>

        * expmed.c (store_bit_field): Don't arbitrarily deny using insv
        for storing constants in single-bit bitfields.

2006-01-25  Ben Elliston  <bje@au.ibm.com>

        * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.

2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/25860
        * tree-ssa-pre.c (phi_translate): Return NULL
        for AGGREGATE_TYPE's.

2006-01-24  Zack Weinberg  <zackw@panix.com>

        * genautomata.c (process_state_for_insn_equiv_partition):
        Use xcalloc for insn_arcs_array.
        * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
        (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.

2006-01-24  Richard Henderson  <rth@redhat.com>

        * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
        update all callers.

2006-01-23  Paolo Bonzini  <bonzini@gnu.org>

        PR rtl-optimization/25890
        PR rtl-optimization/25905
        * combine.c (expand_compound_operation, expand_field_assignment):
        Fail if the bitfield's final position is out of bounds.

2006-01-24  Ian Lance Taylor  <ian@airs.com>

        PR middle-end/25930
        * cgraphunit.c (cgraph_output_in_order): Don't clear
        cgraph_asm_nodes until after asm strings have been output.

2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>

        * fix-header.c (read_scan_file): Add new parameter imultilib when
        calling register_include_chains.

2006-01-23  Diego Novillo  <dnovillo@redhat.com>

        * omp-low.c: Update documentation.

2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
            Daniel Berlin  <dberlin@dberlin.org>

        PR tree-opt/25315
        PR tree-opt/25857
        * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
        return from the function.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * rtl.def (match_code): Add second argument.
        * genpreds.c (write_extract_subexp): New function.
        (write_match_code): Add path argument.  Use write_extract_subexp.
        (write_predicate_expr): Pass path to write_match_code.
        (mark_mode_tests): MATCH_CODE applied to a subexpression does
        not perform a mode test.
        * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
        a subexpression does not constrain the top-level code set.
        * read-rtl.c (read_rtx_variadic): New function.
        (read_rtx_1): Use it; allow AND and IOR to be variadic.
        * doc/md.texi: Document new notation.
        * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
        (cmpsi_operand): ... here, using new notation.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * varray.c: Remove GENERATOR_FILE #ifdefs.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * genautomata.c (output_reserved_units_table): Emit nothing if
        description->query_units_num is zero.  Remove extra blank line.
        (output_cpu_unit_reservation_p): Short circuit
        if description->query_units_num is zero.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
        and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
        nor any of the random handful of variables that used to be necessary
        when this program was linked with rtlanal.o.  Prune set of forward
        function declarations.
        (struct attr_desc): Remove static_p field.
        (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
        (check_attr_test, make_internal_attr, make_numeric_value): Make static.
        (attr_string): Do not read the character one past the length of
        the string.
        (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
        (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
        (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
        (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
        (make_automaton_attrs): New.
        (main): Do not call into genautomata.  Call local gen_bypass
        and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
        Remove special case for insn_alts.
        * genautomata.c: Include gensupport.h; not genattrtab.h nor
        varray.h (leftover from previous change).  Prune set of forward
        function declarations.  Remove state_alts fields from all
        structures.  Remove state_alts_table from struct automaton.
        Make everything except main static.  Do not maintain num_dfa_decls.
        Do not maintain state_alts fields of various structures.
        (process_decls): Don't validate condexp for dm_insn_reserv decls.
        (add_arc): Remove state_alts argument.  All callers updated.
        (output_reserved_units_table): Emit #ifdef here...
        (output_tables): ...not here.  Don't generate state_alts tables.
        (expand_automata): Don't generate attributes.
        (write_automata): Don't generate state_alts functions.
        (main): New function.
        (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
        (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
        (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
        (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
        (BYPASS_P_FUNC_NAME, output_state_alts_table)
        (output_automata_list_state_alts_code, output_internal_state_alts_func)
        (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
        (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
        Delete.
        * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
        * genattrtab.h: Delete file.
        * Makefile.in (OBJS-common): Add insn-automata.o.
        (insn-automata.o): New rule.
        (simple_generated_c): Add insn-automata.c.
        (build/genattrtab.o, build/genautomata.o): Update dependencies.
        (genprogmd): Add automata.
        (build/genattrtab): Needs no extra objects nor libraries.
        (build/genautomata): Needs build/vec.o and -lm.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
        (output_dfa_max_issue_rate, locked_states_num): Delete.
        (struct automaton): Add locked_states field.
        (output_dead_lock_vect): Save number of locked states in
        automaton->locked_states.  If it is zero, don't print anything.
        (output_max_insn_queue_index_def): Define max_insn_queue_index const.
        (output_internal_dead_lock_func): Only test the dead_lock_vect
        for automata that have locked states.
        (output_statistics): Always print the number of locked states for
        each automaton.  Calculate total number of locked states here.
        (write_automata): Don't call output_dfa_max_issue_rate.
        * genattrtab.c: Define length_unit_log as a const variable.
        * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
        max_insn_queue_index const.
        * final.c (length_unit_log): Declare const.
        * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * genautomata.c:  Include vec.h, not varray.h.
        Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
        VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
        VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
        VEC_* macros operating on appropriately typed vectors, or to
        malloced arrays when the size is known in advance.  Const-ify
        many char* variables and function arguments.  No functional changes.
        * Makefile.in (build/varray.o): Delete rule.
        (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
        (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * gensupport.c: Define get_insn_name and record_insn_name here.
        (read_md_rtx): Call record_insn_name as appropriate.
        * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
        * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
        * genpreds.c, genrecog.c: Don't define get_insn_name nor
        record_insn_name.
        * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
        (BUILD_VARRAY): Delete.
        (genprognormal): Rename genprogmd.  Fold in all programs from
        genprognoprint; also attrtab.
        (build/genattrtab): Just mention genautomata.o and varray.o.
        Reorganize a bit, add comments to make the categories clearer.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * genconditions.c (condition_table, add_condition): Delete.
        (write_conditions): Don't emit n_insn_conditions nor
        insn_elision_unavailable.  Issue the gcc version #ifdef here,
        inside the table, with no #else clause ...
        (write_header): ...not here.
        (write_writer): New function.
        (main): Don't initialize condition_table.  Use add_c_test.
        Call write_writer.
        * gensupport.c (init_md_reader_args_cb): Handle multiple input
        files on the command line.
        (maybe_eval_c_test): Don't check insn_elision_unavailable.
        Return -1 if there is no entry in the table, don't abort.
        (add_c_test, traverse_c_tests): New functions.
        * gensupport.h (insn_elision_unavailable, insn_conditions)
        (n_insn_conditions): Delete declarations.
        (add_c_test, traverse_c_tests): Declare.
        * read-rtl.c: Include gensupport.h.
        (read_conditions): New function.
        (read_rtx): If read_rtx_1 returns 0, treat as EOF.
        (read_rtx_1): If we get EOF when we were looking for an initial
        open paren, return 0.  Call read_conditions when appropriate.
        * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
        dummy-conditions.o.  Eliminate references to insn-conditions.o,
        or change them to build/gencondmd.o, as appropriate.  Remove
        insn-constants.h from $(simple_generated_h) and insn-conditions.c
        from $(simple_generated_c).  For all files remaining in those
        two lists, add insn-conditions.md to the generator command line.
        Give insn-constants.h/s-constants their own rules.  Add rules
        for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
        (build/read-rtl.o): Depend on gensupport.h.
        (genprognormal): Include preds.
        (genprogearly): Rename genprognoprint; only difference is now that
        they don't link with $(BUILD_PRINT).
        * dummy-conditions.c: Delete.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * genextract.c: Don't include insn-config.h.  Do include vec.h.
        Declare vectors of int, char, and locstr.
        (locstr): New typedef.
        (struct extraction): Make all array fields into bare pointers.
        (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
        (insn_code_number): Delete.
        (accum_extract): New struct.
        (VEC_safe_set_locstr, VEC_char_to_string): New functions.
        (gen_insn): Take insn_code_number as an argument.  Use an
        accum_extract structure instead of loading data directly into
        a struct extraction, and having to know how big it might get.
        (walk_rtx): Operate entirely on an accum_extract structure.
        (print_path): Avoid unnecessary use of printf.
        (print_header): New function, split out of main.  Distinguish
        more carefully between an unrecognizable insn and an insn that
        has the code number of a define_expand.
        (main): Pass insn_code_number to gen_insn.  Call print_header
        only after parsing.  Avoid unnecessary use of printf.
        * Makefile.in (build/vec.o): New rule.
        (build/genextract): Depend on build/vec.o.
        (build/genextract.o): Don't depend on insn-config.h.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
        $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
        practical.  Eliminate per-generator-program link rules.

2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>

        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.

2006-01-23  Richard Guenther  <rguenther@suse.de>

        * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
        before make_edge with conditional EDGE_TRUE_VALUE.

2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
        Jan Hubicka  <jh@suse.cz>
        Richard Guenther  <rguenther@suse.de>

        PR rtl-optimization/25654
        * cfgexpand.c (aggregate_contains_union_type): New function.
        (add_alias_set_conflicts): Call it.  Make sure to add conflicts
        for structure variables that contain a union type.

2006-01-23  Richard Sandiford  <richard@codesourcery.com>

        * gengtype.c (new_structure): Return the structure.
        (create_option): Add an extra "next" argument.
        (create_field): New function.
        (adjust_field_rtx_def): Use create_option and create_field.
        Remove a now-unnecessary call to find_structure.
        (adjust_field_tree_def): Likewise.
        (note_yacc_type): Remove an unnecessary call to find_structure.
        * gengtype.h (new_structure): Return the structure.
        (create_option): Add an extra argument.
        * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
        (option): Adjust calls to create_option.

2006-01-22  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/aix.h (STACK_BOUNDARY): Define.

2006-01-22  Paul Brook  <paul@codesourcery.com>
        Peter Barada  <peter@the-baradas.com>

        * config/m68k/m68k.md: Add Coldfire FPU support.
        Define FP mode macro and associated attributes.
        Use it for float mode patterns.
        * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
        (LIBCALL_VALUE): Use m68k_libcall_value.
        * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
        (m68k_function_value): Ditto.
        (emit_move_sequence): Ditto.
        * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
        * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
        * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
        (MULTILIB_EXCEPTIONS): Ditto.
        * config/m68k/m68k.opt: Add mcfv4e.
        * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
        (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
        (m68k_output_function_prologue): Save ColdFire FPU registers.
        (m68k_output_function_epilogue): Restore ColdFire FPU registers.
        (force_mode, fp_reg_operand, emit_move_sequence): New functions.
        (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
        ColdFire FPU registers.
        (m68k_libcall_value, m68k_function_value): New functions.
        * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
        (LIBCALL_VALUE): Use m68k_libcall_value.
        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
        (MASK_COLDFIRE): Add MASK_CFV4E.
        (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
        (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
        (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
        (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
        (GO_IF_LEGITIMATE_ADDRESS): Use it.
        (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
        * doc/invoke.tex: Document -mcfv4e on m68k.

2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>

        * doc/contribute.texi: Change CVS to SVN and update the corresponding
        URL.

2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        PR c++/16190
        * c-opts.c (c_common_handle_option): Don't include
        -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
        * doc/invoke.texi (C++ Dialect Options): Document that
        -Wnon-virtual-dtor is no longer included in -Wall.

2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>

        * gcov.c (print_version), gcov-dump.c (print_version),
        mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
        dates.

2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>

        * df-scan.c (problem_SCAN): Added NULL reset function.
        (df_scan_reset_blocks): Added code to call reset block function
        (df_bb_refs_delete) Fixed comment.
        (df_insn_refs_delete): Made tolerant of deleting non existent info
        for dataflow problems that need to be reset.
        * df-core.c (df_set_blocks): Ditto.
        * df.h (struct df_problem): Added reset_fun.
        * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
        problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
        (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
        functions to clear out all references to def-use or use-def chains.

2006-01-21  Ben Elliston  <bje@au.ibm.com>

        * varasm.c (assemble_real): Initialise data array.

2006-01-20  Paul Brook  <paul@codesourcery.com>

        Merge from csl-arm-branch.
        2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
        * config/arm/arm.md (movdi): Force operands[1] to a register
        if we have a non-register source.
        (*arm_movdi, *movdf_soft_insn): Require that one of the
        operands be a register.
        * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
        * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.

2006-01-20  DJ Delorie  <dj@redhat.com>

        * varasm.c (initialize_constant_valid_p): Allow pointers
        initialized from integer constants of lesser precision.
        (output_constant): Allow non-int-sized pointer modes to be
        initialized from integer constants.

2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>

        PR libstdc++/25524
        * cppdefault.h (struct default_include): Add multilib flag.
        * cppdefault.c (cpp_include_defaults): Set it.
        * c.opt (-imultilib): New option.
        * c-opts.c (imultilib): New.
        (c_common_handle_option): Handle -imultilib.
        (c_common_post_options): Likewise.
        * c-incpath.c (add_standard_paths, register_include_chains):
        Likewise.
        * c-incpath.h (register_include_chains): Add extra parameter.
        * gcc.c (do_spec_1): Generate -imultilib option.
        (The Specs Language): Update %I description.
        (process_command): Update copyright notice.
        * doc/cppopts.texi (-imultilib): Document.
        * doc/invoke.texi (-imultilib): Include in option summary.
        (%I): Update specs documentation.

2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>

        * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.

2006-01-20  Richard Sandiford  <richard@codesourcery.com>

        * stmt.c (case_bit_test_cmp): Stabilize the sort using code
        label numbers.

2006-01-20  Richard Guenther  <rguenther@suse.de>
        Steven Bosscher <stevenb.gcc@gmail.com>

        PR rtl-optimization/24626
        * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
        EDGE_TRUE_VALUE if in RTL mode.

        Revert
        2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
        * cfgrtl.c (rtl_verify_flow_info_1): Fix.

2006-01-20  Dirk Mueller  <dmueller@suse.com>

        PR c++/5520
        * c-parser.c (c_parser_if_body): Use build_empty_stmt()
        instead of a special NOP marker.
        * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
        NOP marker handling.
        * c-common.h (empty_body_warning): Add forward declaration.
        * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
        Now uses IS_EMPTY_STMT() instead of special NOP markers.

2006-01-20  Paul Brook  <paul@codesourcery.com>

        * Makefile.in (lang_checks): Keep going if mkdir fails.

2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>

        * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
        be able to clean out basic block when not necessary.
        (df_scan_free): Fixed to properly delete information if df is
        unused before calling df_finish.
        (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
        df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
        or comment typos.
        (df_bb_refs_delete): New function.
        (df_refs_delete): Moved per block code to df_bb_refs_delete.
        * df-core.c (df_set_blocks): Added code to properly clean out
        unused blocks if they are not part of the blocks to consider.
        Added additional null check.
        (df_compact_blocks): Added basic block parameter to free_bb_fun to
        be able to clean out basic block when not necessary
        * df.h (df_free_bb_function): Ditto.
        (df_bb_refs_delete): New function.
        * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
        df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
        basic block parameter to be able to clean out basic block when not
        necessary.
        (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
        (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
        Fixed to properly delete information if df is unused before
        calling df_finish.

2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>

        PR rtl-optimization/25799
        * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
        Corrected confluence operator to remove bits from op2 before oring
        with op1 rather than removing bits from op1.
        (df_ru_transfer_function): Corrected test on wrong bitmap which
        caused infinite loop.  Both of these problems were introduced in
        the dataflow rewrite.

2006-01-19  DJ Delorie  <dj@redhat.com>

        * reload1.c (find_reload_regs): Note the details of reload
        failures in the dump file.
        (spill_failure): Likewise.

2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>

        * loop-iv.c: Include df.h and hashtab.h.
        (enum iv_grd_result): New enum.
        (DF_REF_IV, DF_REF_IV_SET): New macros.
        (struct biv_entry): New.
        (df, bivs): New global variables.
        (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
        assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
        Removed.
        (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
        iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
        analyzed_for_bivness_p, record_biv): New functions.
        (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
        get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
        iv_analyze, biv_p, iv_analysis_done): Work with df representation of
        UD chains.
        (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
        analysed.
        (iv_number_of_iterations): Use new interface to iv analysis.
        * loop-unroll.c: Do not include varray.h.
        (analyze_iv_to_split_insn): Use new interface to iv
        analysis.
        * loop-unswitch.c (may_unswitch_on): Ditto.
        * df.c (df_bitmaps_free): Only work for bbs for that structures are
        allocated.
        (df_bb_modify): Realloc tables to the new index.
        (df_find_use): New function.
        * df.h (df_find_use): Declare.
        * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
        outmode.
        * cfgloop.h (struct rtx_iv): Remove analysed field.
        (iv_get_reaching_def): Removed.
        (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
        * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
        (loop-iv.o): Add df.h and hashtab.h dependency.
        * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.

2006-01-20  Alan Modra  <amodra@bigpond.net.au>

        PR target/25668
        * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
        Double TFmode.
        (__floatundisf, __floatundidf): Likewise.
        * libgcc2.h (IS_IBM_EXTENDED): Define.

2006-01-19  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.

2006-01-19  Paul Brook  <paul@codesourcery.com>

        * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
        as nothrow when unwinding tables are disabled.

2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR testsuite/25171
        * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
        of bit-field" when in system header.

2006-01-19  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
        the 16 bit shift limit of the m16c.

2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/22099
        * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
        * config/i386/i386.c (output_set_got): Output the label if we have one
        for the TARGET_DEEP_BRANCH_PREDICTION case.

2006-01-19  Jan Hubicka  <jh@suse.cz>
            H.J. Lu  <hongjiu.lu@intel.com>
            Evandro Menezes <evandro.menezes@amd.com>

        * invoke.texi (generic): Document
        (i686) Update.
        * config.gcc: Make x86_64-* and i686-* default to generic tunning.
        * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
        TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
        (x86_use_incdec, x86_pad_returns): New variables
        (TARGET_CPU_DEFAULT_generic): New constant
        (TARGET_CPU_DEFAULT_NAMES): Add generic.
        (enum processor_type): Add generic32 and generic64.